Vacuum device

By introducing a buffer mechanism into the vacuum suction head assembly, the over-pushing problem when the vacuum suction head comes into contact with the carrier air hole valve is solved, ensuring product positioning accuracy and stability of the vehicle reference position.

CN222808875UActive Publication Date: 2025-04-29SUNWODA ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421561596.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-04-29
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

The vacuum suction head of the vacuum device will undergo a rigid collision when it contacts the air hole valve on the vehicle, causing over-pushing, which will affect the reference position of the vehicle and the positioning accuracy of the product.

Method used

A vacuum suction head assembly including a buffering mechanism and a drive mechanism is designed, which produces recoverable deformation when the vacuum suction head comes into contact with the air hole valve to avoid over-pushing of the vacuum suction head.

Benefits of technology

It effectively avoids the over-pushing phenomenon of vacuum suction heads, maintains the stable position of the vehicle, ensures the positioning accuracy of the product, and extends the service life of the vacuum suction heads.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vacuum device, and relates to the technical field of vacuum devices. The vacuum device comprises a device body, a vacuum suction head assembly and a driving mechanism, the vacuum suction head assembly and the driving mechanism are arranged on the device body, the vacuum suction head assembly comprises a buffering mechanism and a vacuum suction head which are connected, and the vacuum suction head is used for being in butt joint with an air hole valve of a carrier. The buffer mechanism is used for generating recoverable deformation when the vacuum suction head is in butt joint with the air hole valve. The driving mechanism is connected with the buffering mechanism, and the driving mechanism can drive the vacuum suction head to be close to the carrier or away from the carrier through the buffering mechanism. According to the scheme, the problem of over-pushing caused by rigid collision when a vacuum suction head of an existing vacuum device is in contact with an air hole valve on a carrier can be solved.
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Description

Technical Field

[0001] The present application belongs to the technical field of vacuum devices, and in particular relates to a vacuum device. Background Art

[0002] In the product manufacturing process, a vacuum device is usually used to position the product on a carrier, or to release the adsorption between the product and the carrier. Specifically, the solenoid valve is used to control the switching to vacuum and break the vacuum. The vacuum suction head on the vacuum device performs vacuum suction / break the vacuum action on the air hole valve of the carrier to achieve adsorption and fixation of the product on the carrier and loosening by breaking the vacuum.

[0003] However, when the carrier is close to the vacuum device, the vacuum suction head will be over-pushed due to the rigid collision when it contacts the air hole valve on the carrier, thereby changing the reference position of the carrier. At this time, the product based on the carrier will be affected by the change in the reference position of the carrier during the precision detection, which will lead to abnormal positioning accuracy detection of the product, and correspondingly affect the accuracy of the tooling trolley holding the product. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a vacuum device that can solve the problem of over-pushing caused by rigid collision when the vacuum suction head of the current vacuum device contacts the air hole valve on the carrier.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The embodiment of the present application provides a vacuum device, including a device body and a vacuum suction head assembly and a driving mechanism arranged on the device body.

[0007] Wherein, the vacuum suction head assembly comprises a connected buffer mechanism and a vacuum suction head, the vacuum suction head is used to dock with the air hole valve of the carrier, and the buffer mechanism is used to generate a recoverable deformation when the vacuum suction head docks with the air hole valve;

[0008] The driving mechanism is connected to the buffer mechanism, and the driving mechanism can drive the vacuum suction head to approach the carrier or to move away from the carrier through the buffer mechanism.

[0009] In the embodiment of the present application, the driving mechanism can drive the vacuum suction head to approach or move away from the carrier through the buffer mechanism. When the vacuum suction head approaches the carrier, there is a tendency of over-pushing due to the rigid collision between the vacuum suction head and the air hole valve. The vacuum suction head is subjected to the reaction force of the carrier, so that the buffer mechanism produces a recoverable deformation, thereby avoiding the over-pushing phenomenon of the vacuum suction head. Correspondingly, the reference position of the carrier can be avoided from changing, thereby ensuring the positioning accuracy of the product. Therefore, the embodiment of the present application can solve the problem of over-pushing caused by the rigid collision between the vacuum suction head of the current vacuum device and the air hole valve on the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the vacuum device disclosed in the embodiment of the present application;

[0011] Figure 2 An exploded view of a vacuum device disclosed in an embodiment of the present application;

[0012] Figure 3 An exploded view of the vacuum suction head assembly disclosed in an embodiment of the present application.

[0013] Description of reference numerals:

[0014] 100 - device body, 110 - bottom plate, 120 - first side plate, 130 - second side plate, 140 - third side plate, 150 - top plate;

[0015] 200-vacuum suction head assembly, 210-first bracket, 211-first connecting plate, 211a-first mounting groove, 212-slide rail, 220-second bracket, 221-second connecting plate, 221a-first plate segment, 221b-second plate segment, 221c-limiting groove, 221d-second mounting groove, 222-slider, 223-air guide channel, 230-deformation member, 240-vacuum suction head, 241-thrust pin, 250-mounting plate, 251-avoidance groove, 252-accommodating groove, 260-limiting plate, 270-buffer pad, 280-vacuum air pipe joint, 290-sealing ring;

[0016] 300-driving mechanism, 310-driving member, 311-output shaft, 320-mounting frame;

[0017] 400 - Vacuum gauge. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] The vacuum device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, an embodiment of the present application provides a vacuum device, which is used for vacuuming or breaking a vacuum. Optionally, the vacuum device can control the airflow inside it through a solenoid valve to put the vacuum device in a vacuum suction state or a vacuum breaking state.

[0022] The vacuum device includes a device body 100 and a vacuum suction head assembly 200 and a driving mechanism 300 arranged on the device body 100, wherein the vacuum suction head assembly 200 includes a connected buffer mechanism and a vacuum suction head 240, and the vacuum suction head 240 is used to dock with the air hole valve of the carrier. Optionally, when the vacuum suction head 240 is docked with the air hole valve of the carrier, the vacuum suction head 240 can be vacuumed to allow the product to be adsorbed on the carrier, thereby positioning the product; or, the vacuum suction head 240 breaks the vacuum to break the adsorption between the product and the carrier. Optionally, the product here can specifically be a component such as a battery, and the embodiment of the present application does not impose specific restrictions on this. The buffer mechanism is used to produce a recoverable deformation when the vacuum suction head 240 docks with the air hole valve to play a buffering role. In this case, the buffer mechanism can enable the vacuum suction head 240 to adapt to achieve docking with the air hole valve of the carrier.

[0023] The driving mechanism 300 is connected to the buffer mechanism, and the driving mechanism 300 can drive the vacuum suction head 240 to approach the carrier or to move away from the carrier through the buffer mechanism, so that the vacuum suction head 240 can dock with the air hole valve of the carrier. Specifically, when the vacuum device needs to work, the driving mechanism 300 can drive the vacuum suction head assembly 200 to approach the carrier, so that the vacuum suction head 240 can dock with the air hole valve on the carrier; when the vacuum device completes the work, the driving mechanism 300 drives the vacuum suction head assembly 200 to move away from the carrier, and the vacuum suction head 240 is separated from the air hole valve.

[0024] In the embodiment of the present application, the driving mechanism 300 can drive the vacuum head 240 to approach or move away from the carrier through the buffer mechanism. When the vacuum head 240 approaches the carrier, there is a tendency of over-pushing due to the rigid collision between the vacuum head 240 and the air hole valve. The vacuum head 240 is subjected to the reaction force of the carrier, so that the buffer mechanism produces a recoverable deformation, thereby avoiding the over-pushing phenomenon of the vacuum head 240. Accordingly, the reference position of the carrier can be prevented from changing, thereby ensuring the positioning accuracy of the product. Therefore, the embodiment of the present application can solve the problem of over-pushing caused by the rigid collision between the vacuum head 240 of the current vacuum device and the air hole valve on the carrier.

[0025] In addition, in the embodiment of the present application, the buffer mechanism is provided to avoid the vacuum suction head 240 from being over-pushed, and the vacuum suction head 240 can be prevented from being worn, thereby protecting the vacuum suction head 240.

[0026] In an optional embodiment, the buffer mechanism includes a first bracket 210, a second bracket 220 and a deformable member 230, the first bracket 210 is slidably connected to the second bracket 220, and the vacuum head 240 is arranged on the second bracket 220. Optionally, the vacuum head 240 and the second bracket 220 are detachably connected, and the two can be connected by fasteners such as screws to facilitate disassembly and maintenance. Of course, they can also be fixedly connected by welding, bonding, etc., and no specific restrictions are made here. The first end of the deformable member 230 is connected to the first bracket 210, and the second end of the deformable member 230 is connected to the second bracket 220. Optionally, the second end of the deformable member 230 can be directly connected to the second bracket 220, or it can be abutted against the second bracket 220. The embodiment of the present application does not make specific restrictions on this. The deformable member 230 is used to produce a recoverable deformation when the vacuum head 240 docks with the air hole valve. In this solution, when the deformation member 230 is deformed, the second bracket 220 slides relative to the first bracket 210 to avoid over-pushing of the vacuum suction head 240; at the same time, the second bracket 220 and the first bracket 210 slide together to make the deformation member 230 more stable during the deformation process, the vacuum suction head 240 and the air hole valve of the carrier can be accurately docked, and the vacuum suction head 240 is convenient to set. Of course, the first bracket 210 and the second bracket 220 may not be set, and the deformation member 230 is directly connected to the driving mechanism 300 and the vacuum suction head 240.

[0027] It should be noted that when the vacuum suction head 240 does not contact the carrier, the deformable member 230 may be in a deformed state or in a natural state, and the embodiment of the present application does not impose any specific limitation on this.

[0028] Optionally, the deformable member 230 may be a piezoelectric member or the like; or, in other embodiments, the deformable member 230 is an elastic deformable member, which is not only reversible, but also simple in structure and easy to manufacture. Optionally, the buffer mechanism further includes a mounting plate 250, which is disposed on the first bracket 210, and the deformable member 230 is connected between the mounting plate 250 and the second bracket 220, that is, the deformable member 230 is connected to the first bracket 210 through the mounting plate 250, so as to facilitate the setting of the deformable member 230; and, when the deformable member 230 is deformed, the mounting plate 250 can play a limiting role, thereby protecting the deformable member 230. Of course, the deformable member 230 can also be directly connected to the first bracket 210.

[0029] In a further optional embodiment, the first bracket 210 includes a first connecting plate 211 and a slide rail 212, and the slide rail 212 and the mounting plate 250 are both arranged on the side of the first connecting plate 211 facing the second bracket 220. Optionally, at least one of the slide rail 212 and the mounting plate 250 can be detachably connected to the first connecting plate 211, specifically by fasteners such as screws and bolts, to facilitate the maintenance and replacement of the slide rail 212 and the mounting plate 250. Of course, the slide rail 212 and the mounting plate 250 can also be welded or bonded to the first connecting plate 211, and there is no specific limitation on this here. The second bracket 220 includes a second connecting plate 221 and a slider 222. The vacuum suction head 240 is arranged at one end of the second connecting plate 221 away from the mounting plate 250. The slider 222 is arranged on the side of the second connecting plate 221 facing the first bracket 210. Optionally, the slider 222 can be detachably connected to the second connecting plate 221, and can be connected by fasteners such as screws and bolts to facilitate the maintenance and replacement of the slider 222. Of course, the slider 222 can also be welded or bonded to the second connecting plate 221, and there is no specific restriction on this. The slider 222 is slidably matched with the slide rail 212. In the process of the slider 222 sliding relative to the slide rail 212, a guide can be provided for the deformation member 230 to prevent the deformation member 230 from being offset, thereby improving the accuracy of the docking of the vacuum suction head 240. Of course, the slide rail 212 and the slider 222 can also be not provided, and the first connecting plate 211 and the second connecting plate 221 are in contact with the opposite sides, and the two are slidably matched.

[0030] Optionally, the slide rail 212 may be located on a side of the mounting plate 250 close to the second bracket 220; or, in other embodiments, the mounting plate 250 is provided with an avoidance groove 251, and at least a portion of the first end of the slide rail 212 may be located in the avoidance groove 251, so that the structures such as the slide rail 212 and the mounting plate 250 are more compact, thereby reducing the size of the vacuum suction head assembly 200, which is conducive to saving the space occupied by the vacuum suction head assembly 200.

[0031] Optionally, the deformable member 230 and the slide rail 212 can be arranged side by side in a horizontal plane; or, the deformable member 230 is located below the slide rail 212 to reduce the space occupied by the vacuum suction head assembly 200 in the horizontal plane; and this arrangement can make the forces on both sides of the deformable member 230 more balanced, thereby avoiding the deformable member 230 from tilting during the deformation process.

[0032] Optionally, the central axis of the avoidance groove 251 can coincide with the central axis of the mounting plate 250, that is, the mounting plate 250 is an axisymmetric structure, and the central axes of the deformation member 230, the slide rail 212 and the avoidance groove 251 are parallel to each other and located in the same vertical plane to ensure that the deformation member 230 is deformed in a preset direction during the deformation process, so that the vacuum suction head 240 can be accurately docked to the air hole valve of the carrier.

[0033] In another optional embodiment, the vacuum suction head assembly 200 further includes a limit plate 260, a first end of the limit plate 260 is connected to an end of the first connecting plate 211 away from the mounting plate 250, and the limit plate 260 can be limited and matched with the slider 222. Since the deformable member 230 is an elastic deformable member, it is reversible. When the vacuum suction head 240 is separated from the carrier, the deformable member 230 restores the deformation, and the slider 222 slides in a direction away from the mounting plate 250. The slider 222 slides until it is limited and matched with the limit plate 260, thereby preventing the slider 222 from separating from the slide rail 212.

[0034] In a further optional embodiment, the second connecting plate 221 includes a first plate segment 221a and a second plate segment 221b connected to each other, the second plate segment 221b is bent relative to the first plate segment 221a, the slider 222 is arranged on the first plate segment 221a, the vacuum suction head 240 is arranged on the second plate segment 221b, and the second end of the limiting plate 260 can be limitedly matched with the second plate segment 221b to increase the contact area between the limiting plate 260 and the second bracket 220, thereby dispersing the limiting plate 260. The force applied thereto can protect the limiting plate 260; alternatively, in other embodiments, a limiting groove 221c is provided at the connection between the first plate segment 221a and the second plate segment 221b, and the second end of the limiting plate 260 can extend into the limiting groove 221c, and the second end of the limiting plate 260 can be limitedly matched with the groove wall of the limiting groove 221c, thereby increasing the contact area between the limiting plate 260 and the second bracket 220, and further improving the compactness of the various structures of the vacuum suction head assembly 200.

[0035] In an optional embodiment, the first connecting plate 211 is provided with a first mounting groove 211a, and part of the slide rail 212 is located in the first mounting groove 211a, which can not only reduce the thickness of the first bracket 210, but also improve the installation stability of the slide rail 212. Of course, the first mounting groove 211a may not be provided.

[0036] In another optional embodiment, the second connecting plate 221 is provided with a second mounting groove 221d, and at least a portion of the slider 222 is disposed in the second mounting groove 221d, which can not only reduce the thickness of the second bracket 220, but also improve the installation stability of the slider 222. Of course, the second mounting groove 221d may not be provided.

[0037] In another optional embodiment, a receiving groove 252 is provided on one side of the mounting plate 250 facing the deformable member 230, the first end of the deformable member 230 is connected to the bottom of the receiving groove 252, and at least a portion of the deformable member 230 can be located in the receiving groove 252. During the deformation of the deformable member 230, the side wall of the receiving groove 252 can provide guidance for the deformable member 230 to prevent the deformable member 230 from tilting; and at least a portion of the deformable member 230 can be located in the receiving groove 252 to reduce the size of the vacuum head assembly 200 in the deformation direction of the deformable member 230, thereby reducing its occupied space, and the various structures of the vacuum head assembly 200 are more compact, which is conducive to improving its overall structural stability.

[0038] In the embodiment where the deformable member 230 is located below the slide rail 212 , the accommodating groove 252 is located below the avoidance groove 251 to facilitate the arrangement of the accommodating groove 252 .

[0039] In another optional embodiment, the buffer mechanism and the driving mechanism 300 are both arranged in the accommodation space of the device body 100 to improve the structural compactness of the vacuum device. Optionally, the driving mechanism 300 can be arranged on the side of the buffer mechanism away from the vacuum suction head 240; or, in other embodiments, the buffer mechanism is arranged below the driving mechanism 300, and the driving mechanism 300 includes a driving member 310 and a mounting frame 320. Optionally, the driving member 310 can be a hydraulic cylinder, a cylinder or other structure, and the embodiment of the present application does not impose specific restrictions on this. The driving member 310 is arranged on the top wall of the accommodation space, and the driving member 310 is slidably connected to the mounting frame 320. The output shaft 311 of the driving member 310 and the buffer mechanism are both connected to the mounting frame 320. Optionally, the output shaft 311 of the driving member 310 can be connected to the side wall of the mounting frame 320, and the first bracket 210 of the buffer mechanism is connected to the bottom wall of the mounting frame 320. The driving member 310 can drive the mounting frame 320 to slide relative to the inner wall of the accommodation space, so that the mounting frame 320 drives at least part of the buffer mechanism to extend out of the accommodation space or retract into the accommodation space. This arrangement is adopted in this solution, which is conducive to reducing the space occupied by the vacuum device in the horizontal plane, thereby facilitating the flexible arrangement of the vacuum device.

[0040] Optionally, the device body 100 includes a bottom plate 110, a first side plate 120, a second side plate 130, a third side plate 140 and a top plate 150, wherein the first side plate 120, the second side plate 130 and the third side plate 140 are all arranged on the bottom plate 110, the first side plate 120, the second side plate 130 and the third side plate 140 are sequentially connected, and the first side plate 120 is arranged opposite to the third side plate 140, and the top plate 150 is connected to the first side plate 120, the second side plate 130 and the third side plate 140. The side plate 130 is connected to the third side plate 140, and the top plate 150 is arranged opposite to the bottom plate 110. The bottom plate 110, the first side plate 120, the second side plate 130, the third side plate 140 and the top plate 150 surround the above-mentioned accommodating space. The bottom plate 110, the first side plate 120, the top plate 150 and the third side plate 140 form an opening of the accommodating space, and at least part of the buffer mechanism can extend out of the accommodating space or retract into the accommodating space through the opening.

[0041] Optionally, the vacuum head assembly 200 further includes a buffer pad 270 , which is sleeved on the ejector pin 241 of the vacuum head 240 . When the ejector pin 241 is docked to the air hole valve of the carrier, the buffer pad 270 can absorb part of the reaction force from the carrier to protect the ejector pin 241 .

[0042] Optionally, the vacuum suction head assembly 200 further includes a vacuum air pipe joint 280 and a sealing ring 290, the second bracket 220 is provided with an air guide channel 223, optionally, the second plate segment 221b of the second connecting plate 221 of the second bracket 220 is provided with an air guide channel 223, the vacuum suction head 240 is connected to the first end of the air guide channel 223, the vacuum air pipe joint 280 is connected to the second end of the air guide channel 223, the sealing ring 290 is arranged between the vacuum air pipe joint 280 and the air outlet, and the sealing ring 290 is respectively sealed with the vacuum air pipe joint 280 and the second bracket 220. When the vacuum suction head 240 is docked to the air hole valve of the carrier, the air flow flows along the vacuum suction head 240, the air guide channel 223 and the vacuum air pipe joint 280 in sequence, so that the air between the product and the carrier is extracted, thereby positioning the product.

[0043] In an optional embodiment, the vacuum device further includes a vacuum gauge 400, which is electrically connected to a gas source for providing vacuum to the vacuum head 240, and is used to measure and monitor the vacuum pressure at the vacuum head 240; and the vacuum degree of the vacuum head 240 can be adjusted according to the detection value of the vacuum gauge 400, thereby improving the safety and stability of the vacuum device.

[0044] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A vacuum device, characterized in that: The device comprises a device body (100), a vacuum suction head assembly (200) and a driving mechanism (300) arranged on the device body (100), The vacuum suction head assembly (200) comprises a connected buffer mechanism and a vacuum suction head (240), the vacuum suction head (240) being used to dock with an air hole valve of a carrier, and the buffer mechanism being used to generate a recoverable deformation when the vacuum suction head (240) docks with the air hole valve; The driving mechanism (300) is connected to the buffer mechanism, and the driving mechanism (300) can drive the vacuum suction head (240) to approach the carrier or to move away from the carrier through the buffer mechanism.

2. The vacuum device according to claim 1, characterized in that The buffer mechanism comprises a first bracket (210), a second bracket (220) and a deformable member (230); the first bracket (210) is slidably connected to the second bracket (220); the vacuum suction head (240) is arranged on the second bracket (220); a first end of the deformable member (230) is connected to the first bracket (210); a second end of the deformable member (230) is connected to the second bracket (220); and the deformable member (230) is used to generate a restorable deformation when the vacuum suction head (240) is docked with the air hole valve.

3. The vacuum device according to claim 2, characterized in that The deformable member (230) is an elastic deformable member, and the buffer mechanism further comprises a mounting plate (250), wherein the mounting plate (250) is arranged on the first bracket (210), and the deformable member (230) is connected between the mounting plate (250) and the second bracket (220).

4. The vacuum device according to claim 3, characterized in that The first bracket (210) includes a first connecting plate (211) and a slide rail (212); the slide rail (212) and the mounting plate (250) are both arranged on a side of the first connecting plate (211) facing the second bracket (220); the second bracket (220) includes a second connecting plate (221) and a slide block (222); the vacuum suction head (240) is arranged on an end of the second connecting plate (221) away from the mounting plate (250); the slide block (222) is arranged on a side of the second connecting plate (221) facing the first bracket (210); the slide block (222) is slidably matched with the slide rail (212).

5. The vacuum device according to claim 4, characterized in that The mounting plate (250) is provided with an avoidance groove (251), at least a portion of the first end of the slide rail (212) can be located in the avoidance groove (251), and the deformable member (230) is located below the slide rail (212).

6. The vacuum device according to claim 4, characterized in that The vacuum suction head assembly (200) further comprises a limiting plate (260), wherein a first end of the limiting plate (260) is connected to an end of the first connecting plate (211) away from the mounting plate (250), and the limiting plate (260) can cooperate with the sliding block (222) in a limiting manner.

7. The vacuum device according to claim 6, characterized in that The second connecting plate (221) comprises a first plate segment (221a) and a second plate segment (221b) which are connected to each other. The second plate segment (221b) is bent relative to the first plate segment (221a). The sliding block (222) is arranged on the first plate segment (221a). The vacuum suction head (240) is arranged on the second plate segment (221b). A limiting groove (221c) is arranged at the connection between the first plate segment (221a) and the second plate segment (221b). The second end of the limiting plate (260) can extend into the limiting groove (221c), and the second end of the limiting plate (260) can be limitedly matched with the groove wall of the limiting groove (221c).

8. The vacuum device according to claim 4, characterized in that The first connecting plate (211) is provided with a first mounting groove (211a), and a portion of the slide rail (212) is located in the first mounting groove (211a); and / or, The second connecting plate (221) is provided with a second installation groove (221d), and at least a portion of the sliding block (222) is arranged in the second installation groove (221d).

9. The vacuum device according to claim 3, characterized in that: A receiving groove (252) is provided on a side of the mounting plate (250) facing the deformable member (230); a first end of the deformable member (230) is connected to the bottom of the receiving groove (252); and at least a portion of the deformable member (230) can be located in the receiving groove (252).

10. The vacuum device according to claim 1, characterized in that The buffer mechanism and the driving mechanism (300) are both arranged in the accommodating space of the device body (100), the buffer mechanism is located below the driving mechanism (300), the driving mechanism (300) comprises a driving member (310) and a mounting frame (320), the driving member (310) is arranged on the top wall of the accommodating space, the driving member (310) is slidably connected to the mounting frame (320), the output shaft (311) of the driving member (310) and the buffer mechanism are both connected to the mounting frame (320), the driving member (310) can drive the mounting frame (320) to slide relative to the inner wall of the accommodating space, so that the mounting frame (320) drives at least part of the buffer mechanism to extend out of the accommodating space or retract into the accommodating space.