WO2023039990A1 - Electric vacuum lifter - Google Patents

Abstract

An electric vacuum lifter, comprising a chassis (10). A closed-loop sealing rubber strip (20) is continuously enclosed on the edge of the lower surface of the chassis (10); an area enclosed by the sealing rubber strip (20) on the lower surface of the chassis (10) is a vacuum adsorption area (30); a machine body (40) is provided on the upper surface of the chassis (10); an air extracting device (50) is provided at one end of the machine body (40); a power supply component (60) is provided at the other end of the machine body (40); the air extracting device (50) is electrically connected to the power supply component (60); the middle of the machine body (40) is a handle area (70) that can be grasped; and the power supply component (60) comprises a battery socket (61) detachably connected to the machine body (40) and a battery pack (62) movably connected to the battery socket (61). With this arrangement, the battery socket (61), which is more prone to poor contact in the power supply component (60), can be separated from the integrated design of the prior art to form a separate assembly that is detachable from the machine body (40), such that the problems of cumbersome maintenance and high maintenance cost can be solved only by simple assembly replacement when the battery socket (61) has problems.

Description

An electric vacuum lifter technical field

The utility model belongs to the field of carrying, moving or dumping cargo loads, in particular to an electric vacuum lifter.

Background technique

Since its launch, the electric vacuum lifter has been favored by the market. Compared with traditional suction cups, it has many advantages such as greater adsorption, easier use, faster speed, and higher safety. Therefore, the application space is huge, such as construction, decoration, etc. In the industry, the handling of large plates such as marble and ceramic tiles, as well as the installation of door and window glass by equipment installation units, the lifting of equipment with smooth surfaces, etc.

Many current electric vacuum lifters use a battery compartment at the end of the handle to place the battery, which limits the capacity of the battery and cannot be expanded. When frequently used, the battery is insufficient and needs to be charged, and the waiting time for charging is long, so it is inconvenient to use.

In order to overcome the expansion of battery capacity, the existing technology is gradually improved into an external expandable battery. However, in use, it is also found that in addition to the problem that the battery needs to be expanded, the socket is also prone to wear and tear on the contact parts due to frequent use. The connection is not firm or the electrical contact is poor; after the external battery is installed, it is easily damaged by the collision of external objects, resulting in an unstable connection or poor electrical contact.

The sockets in the prior art are usually designed in one piece with the casing, and it is difficult to repair locally when a problem occurs, and only the entire casing can be replaced, and there are many parts in the casing, which requires all disassembly and replacement, so it is very cumbersome and difficult to maintain. high cost.

Contents of the invention

Aiming at the above problems, the utility model has invented a socket with easy replacement, which is convenient for maintenance and reduces maintenance cost.

The purpose of the invention of the utility model is achieved through the following technical solutions: an electric vacuum lifter, including a chassis, a closed-loop sealing strip is continuously arranged on the edge of the lower surface of the chassis, and the lower surface of the chassis is surrounded by the sealing strip The area is a vacuum adsorption area. There is a body on the upper surface of the chassis. One end of the body is equipped with an air extraction device, and the other end of the body is equipped with a power supply. The air extraction device is electrically connected to the power supply. The middle of the body is a handle area that can be grasped. The power supply part includes a battery socket detachably connected with the body and a battery pack movably connected with the battery socket.

Preferably, a pressure relief valve assembly is provided near the handle area of the air extraction device, the pressure relief valve assembly includes a thin rod-shaped pressure relief valve stem, and an exposed pressing cap is provided on the upper end of the pressure relief valve stem. In the prior art, the pressure relief valve stem and the pressing part are made integrally, and the diameter of the pressing part needs to be relatively large to obtain a good finger touch. Therefore, the material needs to be selected with a larger diameter and then the stem is turned, so that both Waste of material also increases the processing cost, and the design of the preferred method as a two-stage combination reduces the material cost and processing cost.

Preferably, the upper end of the pressing cap is threadedly connected to the upper end of the pressure relief valve stem, the diameter of the exposed part of the pressing cap is larger than the diameter of the pressure relief valve stem, and the peripheral surface of the pressing cap is provided with knurling. Since the pressure relief valve stem needs to be pressed with force from the fingertips to deflate the pressure cap, its diameter is larger to increase the contact area with the fingertips to obtain a good tactile feeling, and knurling is provided on the surrounding surface to increase the hand during disassembly. The friction force of the internal rotation presses the cap.

Preferably, the battery socket is connected to the body through screws. The use of screw connection facilitates reliable fixing and disassembly of the two during maintenance.

Preferably, the battery socket is engaged with the battery pack. The specific structure and connection method of the snap-fit connection adopted are known technologies, and have the advantages of convenient and stable connection.

Preferably, a power display bar is provided in the battery socket. The power display bar is convenient for observing the power condition and replacing the spare battery pack in time.

Preferably, a pressure gauge is further provided on the upper surface of the chassis, and the pressure gauge communicates with the vacuum adsorption area. Setting the pressure gauge is convenient for visually understanding the negative pressure between the main body of the suction cup and the suctioned object and observing the stability of the pressure from the reading of the gauge, thereby improving the safety of use.

Preferably, a flexible protective sheath is provided around the entire periphery of the pressure gauge. In order to protect the pressure gauge from being easily damaged when it is impacted by external force.

Preferably, the chassis is made of aluminum alloy. To improve the anti-deformation ability under load, improve the stability and durability of use.

Preferably, the thickness of the chassis is millimeters. The thickness value is the preferred value of the ratio between self-weight and deformation resistance in multiple tests.

In summary, the utility model has the following advantages compared with the prior art:

The utility model separates the battery socket which is prone to poor contact in the power supply part from the integrated design of the prior art, and forms a separate assembly detachable from the body, so that only when the battery socket has a problem Simple component replacement is required to solve the problem of cumbersome maintenance and high maintenance cost. At the same time, the external movable connection battery pack is not limited by the original structure, and it is convenient to replace the battery with a larger capacity, so as to meet the needs of frequent use. .

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic structural view of the utility model in the direction of A in Fig. 1;

Fig. 3 is an exploded view of parts of the utility model.

Marks in the figure: 10 chassis; 20 sealing strip; 30 vacuum adsorption area; 40 body; 41 exhaust power switch; 42 hook plate; 50 exhaust device; 60 power supply components; 61 battery socket; 62 battery pack; Area; 80 pressure relief valve assembly; 81 pressure relief valve stem; 82 push cap; 90 pressure gauge; 91 flexible protective sleeve.

Detailed ways

The utility model will be further described below in conjunction with the embodiment represented by accompanying drawing:

Example 1:

As shown in Figures 1 to 3, an electric vacuum lifter includes a chassis 10 and a body 40; the chassis 10 can be made of light-weight and high-strength materials such as aluminum alloy or carbon fiber. In this embodiment, the chassis 10 is made of aluminum alloy. Material, thickness is 6mm.

The middle of the body 40 is a handle area 70 that can be grasped, and a closed-loop sealing strip 20 is continuously formed on the edge of the lower surface of the chassis 10, and the area surrounded by the sealing strip 20 on the lower surface of the chassis 10 is a vacuum adsorption area 30; The lower surface of the sealing strip 20 is in direct contact with the surface of the object to be transported, and then the air is continuously drawn out from the vacuum adsorption area 30 by the air suction device 50, so that a negative pressure is formed between the vacuum adsorption area 30 and the surface of the object, and the two form adsorption.

The body 40 is arranged on the upper surface of the chassis 10, one end of the body 40 is provided with an air extraction device 50, and the other end of the body 40 is provided with a power supply part 60, the air extraction device 50 is electrically connected with the power supply part 60, and the air extraction device 50 communicates with the vacuum adsorption area 30 , the air extraction power switch 41 is set at the junction of the handle area 70 and the air extraction device 50, the air extraction power switch 41 controls the air extraction device 50, the air extraction power switch 41 is turned on, and the air extraction device 50 extracts the air in the vacuum adsorption area 30;

The power unit 60 includes a battery socket 61 detachably connected to the body 40 and a battery pack 62 movably connected to the battery socket 61. The battery socket 61 is connected to the body 40 by screws, and the screw connection is used to securely fix and connect the two. Easy to disassemble for maintenance. The battery socket 61 is engaged with the battery pack 62 . The battery connection socket 61 is provided with a power display bar, which is convenient for observing the power situation, so as to replace the spare battery pack in time.

In the suction device 50, a pressure relief valve assembly 80 is provided near the handle area 70. The pressure relief valve assembly 80 communicates with the vacuum adsorption area 30. The pressure relief valve assembly 80 includes a thin rod-shaped pressure relief valve stem 81. The pressure relief valve stem 81 There is an exposed pressing cap 82 on the upper end. The upper end of the pressing cap 82 and the pressure relief valve stem 81 is threaded, the diameter of the exposed part of the pressing cap 82 is larger than the diameter of the pressure relief valve stem 81, and the peripheral surface of the pressing cap 82 is provided with knurling, which is convenient for increasing hand rotation during disassembly Press the friction of the cap 82.

A pressure gauge 90 is also provided on the upper surface of the chassis 10 , and the pressure gauge 90 communicates with the vacuum adsorption area 30 . Setting the pressure gauge 90 is convenient for visually understanding the negative pressure between the suction cup main body 1 and the suctioned object and observing the stability of the pressure from the readings on the gauge, thereby improving the safety of use. A hook plate 42 is set between the upper surface of the chassis 10 and the body 40. The hook plate 42 is used to install a lanyard to facilitate the carrying and storage of the electric vacuum lifter. In this embodiment, the sealing strip 20 is foamed rubber. Foam rubber is light, soft, elastic, and not easy to transfer heat. It has the functions of shock resistance, impact mitigation, heat insulation, and sound insulation. It is suitable for compression deformation and automatic restoration to its original shape.

Working principle:

Place the chassis 10 of the electric vacuum lifter on the object to be transported. The object has at least one surface that is a flat surface and can cover the four sides of the chassis. Continuously press the air suction power switch 41 to draw out the air in the vacuum adsorption area, so that It is in a state of negative pressure with the object to be transported, observe the pressure gauge 90 negative pressure, reach and stabilize within the pressure range, and the electric vacuum lifter firmly sucks the flat building materials.

When the handling is over, the electric vacuum lifter is ready to be removed. At this time, the pressing cap 82 in the pressure relief valve assembly 80 is continuously pressed to release the vacuum state, and the electric vacuum lifter is separated from the object to be transported. The electric vacuum lifter can be easily removed.

In terms of daily maintenance, since the battery pack 62 needs to be frequently removed and charged, the battery socket 61 is prone to poor contact or loose engagement after frequent and repeated plugging and unplugging. The body 40 is detachably connected by screws, so only the corresponding screws need to be removed during maintenance to complete the replacement of the component battery socket 61 .

The specific embodiments described herein are only examples to illustrate the spirit of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (10)

An electric vacuum lifter, comprising a chassis (10), a closed-loop sealing rubber strip (20) is continuously arranged on the edge of the lower surface of the chassis (10), and the lower surface of the chassis (10) is surrounded by the sealing rubber strip (20). The area is the vacuum adsorption area (30), the upper surface of the chassis (10) is provided with a body (40), one end of the body (40) is provided with a suction device (50), and the other end of the body (40) is provided with a power supply unit (60 ), the air extraction device (50) is electrically connected to the power supply part (60), and the middle of the body (40) is a handle area (70) that can be grasped. It is characterized in that the power supply part (60) includes a The connected battery socket (61) and the battery pack (62) movably connected with the battery socket (61) are removed. The electric vacuum lifter according to claim 1, characterized in that, a pressure relief valve assembly (80) is provided in the air extraction device (50) close to the handle area (70), and the pressure relief valve assembly (80) includes fine A rod-shaped pressure relief valve stem (81), the upper end of the pressure relief valve stem (81) is provided with an exposed pressing cap (82). The electric vacuum lifter according to claim 1, characterized in that, the upper end of the pressing cap (82) and the pressure relief valve stem (81) is threadedly connected, and the diameter of the exposed part of the pressing cap (82) is larger than that of the pressure relief valve The diameter of rod (81) is provided with knurling on the peripheral surface of pressing cap (82). The electric vacuum lifter according to claim 1, characterized in that, the battery socket (61) is connected to the body (40) by screws. The electric vacuum lifter according to claim 4, characterized in that, the battery socket (61) is engaged with the battery pack (62). The electric vacuum lifter according to claim 5, characterized in that a power display bar is provided in the battery socket (61). The electric vacuum lifter according to claim 1, characterized in that, the upper surface of the chassis (10) is further provided with a pressure gauge (90), and the pressure gauge (90) communicates with the vacuum adsorption area (30). The electric vacuum lifter according to claim 7, characterized in that a flexible protective sheath (91) is provided around the entire periphery of the pressure gauge (90). The electric vacuum lifter according to any one of claims 1-8, characterized in that the chassis (10) is made of aluminum alloy. The electric vacuum lifter according to claim 9, characterized in that, the chassis (10) has a thickness of 6 mm.

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