Vacuum switch suitable for vacuum carrier and transmission device

Abstract

The utility model discloses a vacuum switch suitable for a vacuum carrier and a transmission device, and belongs to the technical field of automatic transportation equipment, a shell of the vacuum switch is provided with a vacuum chamber, the shell is provided with a first interface and a second interface, and the first interface and the second interface are respectively used for being communicated with the carrier and a vacuum generator. A movable supporting assembly is arranged between the shell and the fixing plate and used for movable supporting between the shell and the fixing plate. The butt joint mechanism is fixedly installed on the shell, and a locking butt joint component is arranged at the end of the butt joint mechanism and used for locking the first connector in the vacuum access port. The utility model also discloses a transmission device comprising the vacuum switch. The utility model provides a vacuum switch suitable for a vacuum carrier and a transmission device, which can adapt to the position error of the carrier, so that the butt joint position of the vacuum switch and a vacuum access port can be adjusted in the process of switching different vacuum switches by the carrier. And thus, the vacuum switch can realize accurate butt joint with the vacuum access port on the carrier.

Description

Technical Field

[0001] This utility model belongs to the field of automated transportation equipment technology, specifically relating to a vacuum switch and transmission device suitable for vacuum vehicles. Background Technology

[0002] Modern products typically require multiple workstations during production, necessitating movement and switching between these stations, and requiring carriers for transport. For example, photovoltaic module backsheet fabrication equipment involves multiple processes such as conductive foil processing, insulating film processing, and lamination.

[0003] In backsheet fabrication, it is typically necessary to first cut and pattern the conductive foil and insulating film, and then transport them to the bonding station for bonding. During material handling, the materials need to be transported to the corresponding loading and unloading stations using a carrier. Existing carriers usually use vacuum adsorption to fix the materials on the carrier, and the vacuum state of the carrier needs to be maintained continuously during the continuous movement of the carrier.

[0004] Existing vacuum switching control technologies mostly employ a single cylinder-driven baffle opening and closing mechanism to control vacuum on / off. This method is prone to vacuum leakage due to poor positioning accuracy, and the baffle is susceptible to wear and deformation after long-term operation, creating a gap when it contacts the check valve, affecting sealing performance. Therefore, it is necessary to optimize the structure of this check valve switch to overcome the aforementioned defects. Utility Model Content

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a vacuum switch and transmission device suitable for vacuum vehicles.

[0006] To achieve the above objectives, this utility model provides a vacuum switch suitable for vacuum vehicles, used to connect the vacuum inlet of the vacuum vehicle and a vacuum generator, comprising:

[0007] The housing has a vacuum chamber inside, and the housing also has a first interface and a second interface that connect to the vacuum chamber, which are used to connect the vacuum inlet check valve and the vacuum generator, respectively.

[0008] A fixing plate is disposed on the side of the housing opposite to the first interface;

[0009] A buffer connection mechanism, the buffer connection mechanism including at least one movable support component, each of the movable support components being disposed between the outer wall surface of the housing facing away from the first interface and the fixed plate, for movable support between the housing and the fixed plate;

[0010] The buffer connection mechanism further includes multiple buffer components, each of which is fixedly installed between the fixed plate and the housing, and each buffer component includes at least one elastic body; the buffer components are arranged at uniform intervals or symmetrically around the central axis of the first interface.

[0011] The docking mechanism has a locking docking component at one end, which is located in the first interface and is used for detachable connection between the first interface and the vacuum inlet; the other end of the docking mechanism is fixedly installed on the housing.

[0012] As a further preferred embodiment of the present invention, the movable support assembly includes a limiting member and a rotating member. The limiting member is fixedly installed on the housing, and the rotating member is partially embedded in the limiting member, and the rotating member can rotate relative to the limiting member.

[0013] As a further preferred embodiment of this utility model, the movable support mechanism is a bullseye bearing, and the buffer connection mechanism is a tension spring.

[0014] As a further preferred embodiment of the present invention, the buffer connection mechanism includes four buffer components; the buffer connection mechanism includes four movable support components, which are uniformly or symmetrically arranged circumferentially around the central axis of the first interface.

[0015] As a further preferred embodiment of this utility model, at least one spacing limiting member is provided between the housing and the fixing plate. The spacing limiting member includes a second through hole opened on the fixing plate, a limiting connecting rod, and a limiting baffle. One end of the limiting connecting rod is fixed to the housing, and the other end of the limiting connecting rod passes through the second through hole and is fixedly connected to the limiting baffle. The inner wall surface of the second through hole is spaced apart from the outer wall surface of the limiting connecting rod, and the limiting baffle can completely cover the second through hole.

[0016] As a further preferred embodiment of the present invention, the docking mechanism includes a telescopic drive component, which is fixedly mounted on the housing. The end of the telescopic drive component facing the first interface is provided with a telescopic rod that can reciprocate towards or away from the vacuum inlet. The end of the telescopic rod away from the housing is provided with a locking docking component.

[0017] As a further preferred embodiment of the present invention, the locking docking component includes a magnetic suction assembly, which is disposed at the end of the telescopic rod facing the carrier and is used to attract and lock the traction part in the vacuum inlet.

[0018] As a further preferred embodiment of this utility model, it also includes a lifting drive mechanism, which includes a lifting end and is fixedly connected to the fixed plate, for driving the first interface to move closer to or away from the vacuum inlet.

[0019] As a further preferred embodiment of this utility model, at least one positioning component is provided between the end face of the housing with the first interface and the end face of the carrier with the vacuum inlet, for limiting the positioning of the housing after docking with the carrier; and / or,

[0020] A suction cup is provided on the top of the first interface, wherein the suction cup is located on the outside of the first interface.

[0021] This application also discloses a transmission device suitable for vacuum vehicles, including a vacuum switch, at least one transmission module, and at least one motion module;

[0022] The vehicle is mounted on the transmission module, and each transmission module extends along the transport direction to drive the vehicle to move in the transport direction.

[0023] The top surface of the carrier is provided with an adsorption hole, and the bottom surface of the carrier is provided with a plurality of vacuum inlets that can communicate with the adsorption hole.

[0024] Each of the motion modules includes multiple motion ends that can reciprocate along the transport direction, and at least one vacuum switch is fixedly installed on each of the motion ends for driving the vacuum switch to move according to the position of the vehicle, so that at least one vacuum inlet is always connected to the vacuum switch.

[0025] As a further preferred embodiment of this invention, the vacuum switch is the aforementioned vacuum switch suitable for vacuum vehicles.

[0026] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0027] (1) The vacuum switch of this utility model, which is applicable to vacuum vehicles, has high positioning accuracy with the vacuum inlet on the vehicle, ensuring sealing and further ensuring the requirement of maintaining a high negative pressure vacuum inside the vehicle.

[0028] (2) The vacuum switch of this utility model, applicable to vacuum vehicles, can easily achieve docking with a one-way valve-type vacuum inlet by using a magnetic locking docking component.

[0029] (3) The present invention provides a transmission device applicable to vacuum carriers. During the movement and hand-changing process, the carrier maintains a high vacuum level, thereby enabling the processed products to be flat and adsorbed on the carrier, thus improving the processing efficiency and pass rate of the products. Attached Figure Description

[0030] Figure 1 This is a perspective view of a vacuum switch applicable to a vacuum vehicle in an embodiment of this utility model;

[0031] Figure 2 This is a cross-sectional view of a vacuum switch applicable to a vacuum vehicle in an embodiment of this utility model;

[0032] Figure 3 An enlarged view is shown of the vacuum switch A in this embodiment of the present invention, applicable to a vacuum vehicle;

[0033] Figure 4 This is a schematic diagram of the motion module structure of the transmission device applicable to vacuum vehicles in this embodiment of the present invention.

[0034] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0035] 1. Housing; 2. Positioning pin; 3. Docking mechanism; 31. Telescopic drive component; 312. Telescopic moving end; 32. Floating joint; 33. Telescopic rod; 34. Magnetic suction assembly; 4. Buffer connection mechanism; 41. Bullseye bearing; 42. Connecting pin; 43. Tension spring; 5. Bellows; 6. Suction cup; 7. Vacuum breaking valve; 8. Fixing plate; 91. First sealing ring; 92. Second sealing ring; 10. Limiting baffle; 11. Guide plate; 12. Limiting connecting rod;

[0036] 100. Transmission module; 200. Vacuum switch; 300. Motion module. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] In the description of this utility model, it should be understood that, unless otherwise stated, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] Example:

[0043] Please see Figures 1-4The vacuum switch and transmission device applicable to vacuum carriers in the preferred embodiment of this utility model, the vacuum switch 200 can be positioned with the vacuum inlet on the carrier with high accuracy, ensuring the sealing performance of the vacuum switch 200 and the vacuum inlet of the carrier, so that the carrier maintains a high vacuum degree during movement and hand change, thereby enabling the processed products to be flatly adsorbed on the carrier, improving the processing efficiency and pass rate of the products.

[0044] Specifically, such as Figure 1 and Figure 2 As shown in the preferred embodiment of this application, the vacuum switch 200 suitable for a vacuum vehicle includes a housing 1, a docking mechanism 3, a fixing plate 8, and a buffer connection mechanism 4. The housing 1 has a vacuum chamber inside, and a first interface and a second interface communicating with the vacuum chamber are provided on the housing 1. These first and second interfaces are respectively connected to a vacuum inlet and a vacuum generator mounted on the vacuum vehicle, enabling the vacuum generator to evacuate the vehicle via the vacuum switch 200.

[0045] Furthermore, such as Figures 1-3 As shown, the buffer connection mechanism 4 is used to provide stable support for the housing 1 while also enabling the housing 1 to move relative to the fixed plate 8. This allows the housing 1 to adaptively adjust its position during the docking process of the first interface with the vacuum inlet, achieving high-precision positioning with the vacuum inlet and ensuring high sealing between the first interface and the vacuum inlet.

[0046] Specifically, the fixing plate 8 is disposed on the side of the housing 1 away from the first interface, and the buffer connection mechanism 4 includes multiple movable support components, which are fixedly disposed on the outer wall surface of the housing 1 away from the first interface, with the free end abutting against the fixing plate 8, thereby forming a movable support structure between the housing 1 and the fixing plate 8.

[0047] Furthermore, such as Figure 3 As shown in the preferred embodiment of this application, the movable support assembly includes a limiting member and a rotating member. One end of the limiting member is fixedly installed on the housing 1, and the other end of the limiting member, i.e. the free end, is provided with a rotating member. Part of the main body structure of the rotating member is embedded in the limiting member. At the same time, the rotating member can rotate relative to the limiting member, and the part of the rotating member structure not embedded in the limiting member abuts against the fixed plate 8. Thus, the rotating member and the limiting member can achieve abutment support between the housing 1 and the fixed plate 8, and can also achieve relative movement of the housing 1 relative to the fixed plate 8. Furthermore, the setting of the rotating member allows the movable support assembly to roll on the fixed plate 8 through the rotating member without generating forced friction that would cause wear and noise to the parts.

[0048] More preferably, such as Figure 1As shown in the preferred embodiment of this application, a plurality of movable support components are symmetrically arranged in a rectangular or circular array between the housing 1 and the fixing plate 8 to ensure that the movable support components can stably support the housing 1 on the fixing plate 8. Preferably, four movable support components are arranged circumferentially between the fixing plate 8 and the housing 1 around the central axis of the first interface, thereby enabling movable support of the housing 1 on the fixing plate 8. More preferably, a limiting member is fixedly installed on the bottom end face of the housing 1, and a planar area is provided on the end face of the fixing plate 8 facing the housing 1 to facilitate relative movement between the movable support components and the housing 1 and the fixing plate 8.

[0049] More specifically, in a preferred embodiment of this application, the limiting member has a hemispherical groove, and the rotating member is a ball embedded in the hemispherical groove, with the ball partially embedded in the hemispherical groove, thereby enabling the limiting member corresponding to the rotating member to achieve stable rotation. Alternatively, the limiting member has a semi-cylindrical groove, and the rotating member is a cylindrical roller partially embedded in the hemispherical groove. Preferably, the movable support assembly is a bullseye bearing 41.

[0050] Furthermore, such as Figures 1-3 As shown in the preferred embodiment of this application, the buffer connection mechanism 4 further includes multiple buffer components. Each buffer component is fixedly installed between the fixed plate 8 and the housing 1, and each buffer component includes multiple elastic bodies. The two ends of the elastic bodies are respectively connected to the fixed plate 8 and the housing 1, so that the first interface has a positional deviation at the vacuum inlet. The housing 1 can achieve buffering by means of the deformation of the elastic bodies. Under the action of multiple elastic bodies with high elastic coefficients, the housing 1 is subjected to forces with opposite directions and the same force, thereby keeping the housing 1 in a relatively stable state without being subjected to other external forces. It can be understood that the buffer components can also cause the housing 1 to move when the first interface is disconnected from the vacuum inlet, until the housing 1 achieves a reset position relative to the fixed plate 8.

[0051] Preferably, the elastomer is a tension spring 43 or an elastic band.

[0052] More specifically, in a preferred embodiment of this application, the elastic body is a tension spring 43, and connecting posts 42 are provided on both the housing 1 and the fixing plate 8. The two ends of the tension spring 43 are respectively fixedly connected to the two connecting posts 42. Preferably, one end of the connecting post 42 provided on the housing 1 is fixed to the housing 1, and the other end faces the fixing plate 8; one end of the connecting post 42 provided on the fixing plate 8 is fixed to the fixing plate 8, and the other end faces the housing 1.

[0053] Further preferably, to ensure that the buffer assembly can pull the housing 1 at any horizontal position, it is understood that the elastomers are arranged at uniform intervals or symmetrically along the circumferential axis of the first interface. In a preferred embodiment of this application, the buffer connection mechanism 4 includes at least three buffer components, and each buffer component is arranged at uniform intervals around the central axis of the first interface. Specifically, the buffer connection mechanism 4 includes four buffer components, each buffer component is arranged at 90-degree intervals around the central axis of the first interface. Alternatively, the buffer components are symmetrically arranged with the central axis of the first interface as the central axis.

[0054] Furthermore, one end of the docking mechanism 3 is provided with a locking docking component, which is located in the first interface for detachable connection between the first interface and the vacuum inlet. The other end of the docking mechanism 3 is fixedly mounted on the housing 1. Preferably, as one embodiment, the vacuum inlet is a one-way valve.

[0055] Furthermore, such as Figure 2 As shown in the preferred embodiment of this application, the docking mechanism 3 includes a telescopic drive member 31, which is fixedly mounted on the housing 1. The end of the telescopic drive member 31 facing the first interface is also provided with a telescopic rod 33 that can reciprocate towards or away from the vacuum inlet. Simultaneously, a locking docking member is provided at the end of the telescopic rod 33 away from the telescopic drive member 31. During the docking process between the first interface and the vacuum inlet, the telescopic cylinder drives the telescopic rod 33 to move towards the carrier until the locking docking member can lock with the vacuum inlet. During the unlocking process between the first interface and the vacuum inlet, the telescopic cylinder drives the telescopic rod 33 away from the carrier, causing the locking docking member to disengage from the locking connection between the first interface and the vacuum inlet under the action of the telescopic rod 33, thereby facilitating the separation of the first interface and the vacuum inlet.

[0056] More preferably, such as Figure 2 As shown in the preferred embodiment of this application, the locking docking assembly includes a magnetic attraction component 34, which is disposed at the end of the telescopic rod 33 facing the carrier. Correspondingly, a traction part that can be attracted by the magnetic attraction component 34 is also provided in the vacuum inlet. Preferably, the magnetic attraction component 34 is a strong magnet or an electromagnet.

[0057] In actual use, if there is a positional error between the vacuum switch 200 and the carrier, the spatial position of the housing 1 relative to the fixed plate 8 can be automatically adjusted by the force between the magnetic attraction component 34 and the traction part, thereby enabling the first interface on the housing 1 to achieve stable docking with the vacuum inlet. More preferably, the traction part is a magnet that can attract the magnetic attraction component 34.

[0058] Furthermore, such as Figure 2As shown in the preferred embodiment of this application, a guide plate 11 is further provided at the first interface. The guide plate 11 has a first guide hole through which the telescopic rod 33 can pass, enabling the telescopic rod 33 to achieve accurate reciprocating motion in a direction perpendicular to the first interface. Preferably, a sleeve is provided between the telescopic rod 33 and the first guide hole. The thickness of the sleeve is greater than the thickness of the guide plate 11 to increase the contact area with the side wall of the telescopic rod 33 and improve the guiding performance of the guide plate 11. Preferably, the guide plate 11 is a square plate with the first guide hole in the middle. This square plate partially covers the first interface, serving to guide the end of the telescopic rod 33 while simultaneously enabling communication between the vacuum chamber and the first interface.

[0059] Further preferably, in the preferred embodiment of this application, a funnel-shaped suction cup 6 is also provided on the top of the first interface to facilitate a stable seal of the vacuum inlet through the suction cup 6, ensuring the sealing performance of the first interface and the vacuum inlet. It is understood that the suction cup 6 is located on the outside of the first interface.

[0060] More specifically, in a preferred embodiment of this application, at least one positioning component is provided on the end face of the housing 1 facing the carrier, for horizontal limiting after the housing 1 is docked with the carrier. Preferably, the positioning component includes a positioning post 2 and a positioning groove respectively provided on the opposite surfaces of the housing 1 and the carrier. The positioning post 2 can be embedded in the positioning groove, thereby achieving stable limiting between the housing 1 and the carrier. Preferably, a wing plate for supporting the positioning post 2 is provided at the end of the housing 1 facing the carrier, and correspondingly, a positioning groove corresponding to the positioning post 2 is provided on the carrier.

[0061] Furthermore, such as Figure 2 As shown in the preferred embodiment of this application, the telescopic drive 31 is fixedly installed on the outer wall surface of the housing 1 away from the first interface. Correspondingly, a second guide hole is also provided on the inner wall surface of the housing 1 away from the first interface to facilitate the conduction of the telescopic rod 33. Furthermore, at least one sealing component is provided between the telescopic rod 33 and the second guide hole to prevent external gas from entering the vacuum chamber and affecting the vacuum degree inside the vacuum chamber.

[0062] More preferably, such as Figure 2As shown in the preferred embodiment of this application, a sealing sleeve is also provided on the outer wall surface of the housing 1 facing away from the first interface. Correspondingly, a first through hole penetrating the plate body is opened on the fixing plate 8. One end of the sealing sleeve is fixed to the outer wall surface of the housing 1, and the other end passes through the first through hole. A telescopic drive member 31 is fixedly installed on the end of the sealing sleeve facing away from the housing 1. At the same time, a chamber for accommodating the telescopic rod 33 is opened in the sealing sleeve, so as to ensure the telescopic movement of the telescopic rod 33 while also stably fixing the telescopic drive member 31 to the housing 1. Preferably, at least one second sealing ring 92 is provided between the contact surfaces between the sealing sleeve and the housing 1 to achieve effective sealing between the sealing sleeve and the housing 1. More preferably, the inner wall surface of the first through hole and the outer wall surface of the sealing sleeve are spaced apart so that the sealing sleeve can have a certain range of motion.

[0063] Furthermore, in a preferred embodiment of this application, the telescopic drive member 31 has a telescopic movement end 312 on the side facing the carrier, and a floating joint 32 is provided between the telescopic movement end 312 and the telescopic rod 33 to facilitate stable and accurate installation between the telescopic rod 33 and the telescopic movement end 312. Preferably, the telescopic drive member 31 is a cylinder or a hydraulic cylinder.

[0064] More preferably, such as Figure 2 As shown in the preferred embodiment of this application, at least one spacing limiting member is provided between the fixing plate 8 and the housing 1. The spacing limiting member includes a second through hole opened on the fixing plate 8, a limiting connecting rod 12 and a limiting baffle 10. One end of the limiting connecting rod 12 is fixed to the housing 1, and the other end of the limiting connecting rod 12 passes through the second through hole and is fixedly connected to the limiting baffle 10. Meanwhile, the inner wall surface of the first through hole is spaced apart from the outer wall surface of the limiting connecting rod 12, and the limiting baffle 10 can completely cover the second through hole. Preferably, the limiting baffle 10 slides against the end face of the fixing plate 8 away from the housing 1.

[0065] In actual use, if the housing 1 moves relative to the fixed plate 8, the limiting link 12 can synchronously drive the limiting baffle 10 to move. Furthermore, since the limiting baffle 10 covers the entire second through hole, it can ensure that the limiting link 12 can always limit the relative distance between the fixed plate 8 and the housing 1, so that the housing 1 will not detach from the connection with the fixed plate 8.

[0066] Furthermore, in a preferred embodiment of this application, the second interface is formed on the side wall of the housing 1. Preferably, a bellows 5 is also provided between the second interface and the vacuum generator to enable the vacuum generator to evacuate the vacuum chamber. Preferably, at least one first sealing ring 91 is also provided between the inner wall of the second interface and the end of the bellows 5 to improve the sealing performance between the second interface and the bellows 5.

[0067] Furthermore, such as Figure 1 As shown in the preferred embodiment of this application, at least one vacuum breaking valve 7 is provided on the housing 1 to release the vacuum state in the vacuum chamber when the vacuum switch 200 is disconnected from the carrier.

[0068] Furthermore, in a preferred embodiment of this application, the vacuum switch 200 further includes a lifting drive mechanism, which includes a lifting end and is fixedly connected to the fixed plate 8 so as to drive the first interface on the housing 1 to move closer to or away from the vacuum inlet through the lifting end.

[0069] Furthermore, such as Figure 4 As shown, in another preferred embodiment of this application, a transmission device suitable for a vacuum vehicle is disclosed. The transmission device includes a plurality of vacuum switches 200, at least one transmission module 100, and at least one motion module 300. Each transmission module 100 extends along the transport direction, and the vehicle is disposed on the top surface of the transmission module 100, so that the vehicle can move in the transport direction under the drive of the transmission module 100.

[0070] An adsorption hole is provided on the top surface of the carrier, and multiple vacuum inlets that communicate with the adsorption hole are arranged along the transport direction on the bottom surface of the carrier. Each motion module 300 includes multiple moving ends that can reciprocate along the transport direction, and at least one vacuum switch 200 is fixedly installed on each moving end. As the carrier moves, the motion module 300, corresponding to the position of the carrier, drives the vacuum switch 200 to move, so that at least one vacuum inlet of the carrier can communicate with the vacuum switch 200.

[0071] In actual use, one vacuum inlet of the vehicle is first connected to the vacuum switch 200 on the first motion module 300. When the motion module 300 approaches the movable end position, the second motion module 300 at the next position moves synchronously to the bottom of the vehicle and connects to another vacuum inlet on the vehicle via its vacuum switch 200. After the vacuum switch 200 of the second motion module 300 establishes connection between the vacuum and the inlet of the vehicle, the vacuum switch 200 on the first motion module 300 disconnects from the vacuum inlet of the vehicle, thus completing the handover of the vehicle between the two adjacent motion modules 300.

[0072] Furthermore, in a preferred embodiment of this application, the transmission module 100 is a belt transmission module 100 or a roller transmission module 100.

[0073] More preferably, in the preferred embodiment of this application, the motion module 300 is a linear module.

[0074] The vacuum switch and transmission device for vacuum vehicles of this invention features accurate docking, stable operation, and excellent sealing. Through a bullseye bearing 41 positioned between the housing 1 and the fixed plate 8, when an error exists between the vacuum switch 200 and the vacuum inlet of the vehicle, the magnetic suction assembly 34 connects to the one-way valve of the vehicle. The buffer connection mechanism 4, through the special elastic connection of the tension spring 43, causes a certain positional shift in the housing 1. Furthermore, because the bullseye bearing 41 and the main fixed plate 8 are connected by a rolling connection, forced friction is avoided, preventing wear and noise on parts. This positional shift accommodates errors generated during vehicle movement, achieving high-precision positioning and ensuring the sealing of the vacuum connection.

[0075] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum switch suitable for a vacuum vehicle, used to connect the vacuum inlet of the vacuum vehicle and a vacuum generator, characterized in that, include: The housing has a vacuum chamber inside, and the housing also has a first interface and a second interface that connect to the vacuum chamber, which are used to connect the vacuum inlet check valve and the vacuum generator, respectively. A fixing plate is disposed on the side of the housing opposite to the first interface; A buffer connection mechanism, the buffer connection mechanism including at least one movable support component, each of the movable support components being disposed between the outer wall surface of the housing facing away from the first interface and the fixed plate, for movable support between the housing and the fixed plate; The buffer connection mechanism further includes multiple buffer components, each of which is fixedly installed between the fixed plate and the housing, and each buffer component includes at least one elastic body; the buffer components are arranged at uniform intervals or symmetrically around the central axis of the first interface. The docking mechanism has a locking docking component at one end, which is located in the first interface and is used for detachable connection between the first interface and the vacuum inlet; the other end of the docking mechanism is fixedly installed on the housing.

2. The vacuum switch for vacuum vehicles according to claim 1, wherein, The movable support assembly includes a limiting member and a rotating member. The limiting member is fixedly installed on the housing, and the rotating member is partially embedded in the limiting member and can rotate relative to the limiting member.

3. The vacuum switch for vacuum vehicles according to claim 1, wherein, The movable support mechanism is a bullseye bearing, and the buffer connection mechanism is a tension spring.

4. The vacuum switch for vacuum vehicles according to claim 1, wherein, The buffer connection mechanism includes four buffer components; the buffer connection mechanism includes four movable support components, which are uniformly or symmetrically arranged around the central axis of the first interface in the circumferential direction.

5. The vacuum switch for vacuum vehicles according to claim 1, wherein, At least one spacing limiting member is provided between the housing and the fixed plate. The spacing limiting member includes a second through hole opened on the fixed plate, a limiting connecting rod and a limiting baffle. One end of the limiting connecting rod is fixed to the housing, and the other end of the limiting connecting rod passes through the second through hole and is fixedly connected to the limiting baffle. The inner wall surface of the second through hole is spaced apart from the outer wall surface of the limiting connecting rod, and the limiting baffle can completely cover the second through hole.

6. A vacuum switch suitable for a vacuum vehicle according to any one of claims 1 to 5, wherein, The docking mechanism includes a telescopic drive component, which is fixedly mounted on the housing. The end of the telescopic drive component facing the first interface is provided with a telescopic rod that can reciprocate towards or away from the vacuum inlet. The end of the telescopic rod away from the housing is provided with a locking docking component.

7. The vacuum switch for a vacuum vehicle according to claim 6, wherein, The locking docking component includes a magnetic suction assembly, which is disposed at the end of the telescopic rod facing the vehicle and is used to attract and lock the traction part in the vacuum inlet.

8. A vacuum switch suitable for a vacuum vehicle according to any one of claims 1 to 3, 5, and 7, wherein, It also includes a lifting drive mechanism, which includes a lifting end that is fixedly connected to the fixed plate and is used to move the first interface closer to or away from the vacuum inlet.

9. The vacuum switch for a vacuum vehicle according to claim 8, wherein, At least one positioning component is provided between the end face of the housing with the first interface and the end face of the carrier with the vacuum inlet, for limiting the position of the housing after it is docked with the carrier; and / or, A suction cup is provided on the top of the first interface, wherein the suction cup is located on the outside of the first interface.

10. A transmission device suitable for vacuum vehicles, characterized in that, Includes a vacuum switch, at least one transmission module, and at least one motion module; The vehicle is mounted on the transmission module, and each transmission module extends along the transport direction to drive the vehicle to move in the transport direction. The top surface of the carrier is provided with an adsorption hole, and the bottom surface of the carrier is provided with a plurality of vacuum inlets that can communicate with the adsorption hole. Each of the motion modules includes multiple motion ends that can reciprocate along the transport direction, and at least one vacuum switch is fixedly installed on each of the motion ends for driving the vacuum switch to move according to the position of the vehicle, so that at least one vacuum inlet is always connected to the vacuum switch.

11. A transmission device suitable for a vacuum vehicle according to claim 10, wherein, The vacuum switch is any one of the vacuum switches applicable to vacuum vehicles as described in claims 1 to 9.

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