A locking device and a vacuum device

Abstract

The present invention discloses a locking device for locking a door cover to a preset position away from a vacuum equipment body, the locking device comprises a base provided on the vacuum equipment body and a plug-in portion provided on the door cover, the base is provided with at least one recess at least partially matched with the plug-in portion, and the plug-in portion can move from an unlocking position to a locking position and from a locking position to an unlocking position on the recess. The present invention also discloses a vacuum equipment comprising a vacuum equipment body, a door cover rotatably provided on the vacuum equipment body, and the above-mentioned locking device, wherein the vacuum equipment body and the door cover are connected by a hinge structure. The locking device and vacuum equipment provided by the present invention have a simple structure and are easy to operate, and the vacuum environment of the vacuum equipment can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of locking devices, and in particular to a locking device for vacuum equipment and vacuum equipment having the locking device. Background Art

[0002] At present, the door cover and the base are often connected by locking methods such as door pin hinges and / or snap connections during assembly. Due to the problems of dimensional accuracy, assembly accuracy and elasticity of matching connectors such as sealing rings between the door cover and the base, the use of door pin hinges or snap connections cannot make the door cover and the base fit tightly together, and is not suitable for vacuum equipment. When some vacuum equipment uses door pin hinges and snap connections at the same time, the sealing effect can meet the use requirements, but when opening or closing the door cover, it is necessary to turn the handle to loosen the snap connection or hook the snap connection, which is not smooth enough in operation, time-consuming and labor-intensive, and brings many inconveniences to actual use. Therefore, it is necessary to provide a locking device that has a simple structure, is easy to operate, and can meet the needs of a variety of application scenarios, especially the door pin structure requirements in vacuum systems. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art, to provide a locking device with a simple structure and convenient operation, and to provide a vacuum device with a simple structure, convenient operation and effective guarantee of the vacuum environment.

[0004] The present invention provides a locking device for vacuum equipment, the vacuum equipment comprising a vacuum equipment body and a door cover rotatably arranged on the vacuum equipment body, the locking device is used to lock the door cover to a preset position away from the vacuum equipment body, and comprises:

[0005] A base, arranged on the vacuum equipment body;

[0006] The plug-in part is arranged on the door cover, and the plug-in part interacts with the base part in a locking manner;

[0007] The base is provided with a recess at least partially matched with the plug-in portion, and the plug-in portion can move from the unlocking position to the locking position and from the locking position to the unlocking position on the recess.

[0008] Among them, there is at least one recess.

[0009] Furthermore, the locking device also includes: a guiding part provided on the door cover for guiding the movement of the plug-in part.

[0010] Furthermore, there are at least two recesses, each recess has a center line, and the center lines of the at least two recesses are on the same plane.

[0011] Furthermore, the guide portion includes a bearing member and a clamping member, and the bearing member is connected to the clamping member.

[0012] Furthermore, the plug-in portion is a linear shaft, and the bearing member is a linear bearing.

[0013] Furthermore, the locking device also includes: a reset portion sleeved on the periphery of the plug-in portion, used for pushing the plug-in portion into the recess.

[0014] Furthermore, the reset portion includes a spring, and the spring is connected to the bearing member.

[0015] Furthermore, the locking device also includes: a stopper connected to the spring to control the travel of the spring.

[0016] Furthermore, there are at least two plug-in parts, and the at least two plug-in parts are commonly connected to a handle, and the handle is used to open or close the door cover.

[0017] The present invention provides a vacuum device, comprising a vacuum device body, a door cover rotatably arranged on the vacuum device body, and any locking device as described above, wherein the vacuum device body and the door cover are connected via a hinge structure.

[0018] In summary, a locking device for locking a door cover to a preset position away from a vacuum equipment body is provided, the locking device comprising a base provided on the vacuum equipment body and a plug-in portion provided on the door cover, the plug-in portion and the base interacting with each other in a locking manner. The base is provided with a recess at least partially matched with the plug-in portion, the plug-in portion can move from an unlocked position to a locked position and from a locked position to an unlocked position on the recess, and there is at least one recess.

[0019] A vacuum device comprises the above-mentioned locking device, a vacuum device body and a door cover rotatably arranged on the vacuum device body, wherein the vacuum device body and the door cover are connected via a hinge structure. The working principle of the locking device of the vacuum device is roughly as follows: when opening the door cover, firstly, the plug-in part is completely disengaged from the recess by pulling the handle, and then the door cover is propped up in a direction away from the vacuum device body, and when the propped-up height of the door cover reaches a preset height, the handle is pulled again to insert the plug-in part into the recess, thereby realizing the locked open state of the door cover; when closing the door cover, similarly, firstly, the plug-in part is completely disengaged from the recess by pulling the handle, and then the door cover is moved in a direction close to the vacuum device body until the door cover is in direct contact with the vacuum device body, and at this time, the handle is pulled to insert the plug-in part into the recess, thereby realizing the locked closed state of the door cover.

[0020] Compared with the prior art, the locking device and vacuum equipment provided by the present invention have a simple structure and are easy to operate, and the vacuum environment of the vacuum equipment is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A schematic diagram of a locking device for vacuum equipment provided in a preferred embodiment of the present invention.

[0022] Figure 2 A schematic diagram of a base of a locking device for vacuum equipment provided in a preferred embodiment of the present invention.

[0023] Figure 3 The figure is a schematic diagram of a base of a locking device for vacuum equipment provided by a preferred embodiment of the present invention.

[0024] Figure 4 The figure is a schematic diagram of a base of a locking device for vacuum equipment provided by a preferred embodiment of the present invention.

[0025] Among them, 1. base, 2. plug-in part, 3. recess, 31. first recess, 32. second recess, 4. bearing member, 5. clamping member, 6. reset part, 7. stopper, 8. handle, 9. door cover, 10. vacuum equipment body, 11. through groove. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention.

[0027] See also Figures 1 to 4 , which is a preferred embodiment of the present invention, provides a locking device for vacuum equipment, the vacuum equipment comprising a vacuum equipment body 10 and a door cover 9 rotatably arranged on the vacuum equipment body 10, the locking device is used to lock the door cover 9 to a preset position away from the vacuum equipment body 10, and comprises:

[0028] A base 1 is provided on a vacuum equipment body 10;

[0029] The plug-in portion 2 is provided on the door cover 9, and the plug-in portion 2 interacts with the base portion 1 in a locking manner;

[0030] The base 1 is provided with a recess 3 which at least partially matches the plug-in portion 2. The plug-in portion 2 can move from the unlocked position to the locked position and from the locked position to the unlocked position on the recess 3.

[0031] There is at least one recess 3 .

[0032] Specifically, the base 1 is fixedly arranged on the vacuum equipment body 10, and the recess 3 on the base 1 can partially accommodate the plug-in portion 2. In addition, in order to reduce the weight of the base 1, a through groove 11 can also be provided on the base 1, such as Figure 2 The through slot 11 can also play a role when the door cover 9 and the vacuum equipment body 10 are connected, for example, to support the connecting parts.

[0033] In the process of opening or closing the door cover 9, the plug part 2 is at least partially in contact with the recess 3 and moves relative to each other, and the plug part 2 forms a friction pair with the recess 3. In actual working conditions, the base 1 and the plug part 2 also need to bear a certain load, so their materials need to have excellent mechanical strength and wear resistance. Preferably, the base 1 and the plug part 2 are made of stainless steel, aluminum alloy or alumina ceramic; further, in order to reduce the wear of the friction pair, the plug part 2 and the recess 3 are preferably made of the same material, for example, the recess 3 is made of stainless steel, and the plug part 2 is also made of stainless steel.

[0034] It is worth mentioning that the number of recesses 3 is determined by the number of locking positions and the number of plug-in parts 2. In this embodiment, there is at least one recess 3. Specifically, for vacuum equipment, the number of recesses 3 can be consistent with the number of locking positions. Since the door cover 9 can reach the locking position by vacuum adsorption when it is closed, at this time, only one recess 3 is needed to achieve locking when the door cover 9 is opened. Figure 3 In addition, the number of the plug-in parts 2 is not more than the number of the recesses 3. For example, in this embodiment, the number of the plug-in parts 2 is at least one.

[0035] In this embodiment, the locking device further includes: a guide portion provided on the door cover 9 for guiding the movement of the plug-in portion 2. The recess 3 and the plug-in portion 2 are used in conjunction with each other, and the assembly accuracy between the two is required to be high. The guide portion is of great practical significance for the plug-in portion 2 to accurately enter the recess 3.

[0036] In this embodiment, there are at least two recesses 3 , each recess 3 has a center line, and the center lines of the at least two recesses 3 are on the same plane.

[0037] Specifically, for the sake of symmetry in appearance and balance of bearing force, the recesses 3 are at least two, for example, including a first recess 31 and a second recess 32. Figure 4 shown.

[0038] The recess 3 is a groove-shaped structure, and its cross-sectional shape and size are determined by the plug-in portion 2. For example, when the plug-in portion 2 is a uniform cylindrical rod, the recess 3 can be a cylindrical hole with a diameter slightly larger than the diameter of the cylindrical rod or a conical hole with a maximum diameter larger than the diameter of the cylindrical rod, preferably a conical hole. The diameter of the conical hole gradually decreases in the direction from the surface of the base 1 to the center of the base 1.

[0039] In the present embodiment, the door cover 9 of the vacuum equipment is set to the closed state of the equipment at the locking position close to the vacuum equipment body 10. This locking position requires a recess 3 to cooperate with it, and the open state of the vacuum equipment corresponds to more than one locking position, that is, maintaining the open state requires more than one recess 3. Therefore, in the present embodiment, the number of recesses 3 is at least two; each open state of the vacuum equipment separated from the vacuum equipment body 10 should correspond to an independent recess 3, and the movement trajectory of the plug-in part 2 from one locking position to another locking position forms a fan shape on the recess 3. When the plug-in part 2 is plugged into the recess 3, the position of the plug-in part 2 is equivalent to the center line of the recess 3. Therefore, the center line of the recess 3 is on the same plane.

[0040] In this embodiment, the guide portion includes a bearing member 4 and a clamping member 5, and the bearing member 4 is connected to the clamping member 5. In a preferred embodiment, the guide portion may further include a guide groove for receiving the plug-in portion 2, and the bearing member 4 and the clamping member 5 are both arranged on the guide groove.

[0041] In this embodiment, the plug-in portion 2 is a linear shaft, and the bearing member 4 is a linear bearing.

[0042] Linear bearings are used in combination with slender linear guide shafts. The steel balls in the bearings roll in a circulating structure, allowing the guide shafts to perform smooth linear motion in the bearings.

[0043] In this embodiment, the locking device further comprises: a reset portion 6 sleeved on the outer periphery of the plug-in portion 2 and used for pushing the plug-in portion 2 into the recess 3 .

[0044] In this embodiment, the resetting portion 6 includes a spring, and the spring is connected to the bearing member 4 .

[0045] In this embodiment, the locking device further includes a stopper 7, which is connected to the spring to control the travel of the spring.

[0046] Accordingly, when the plug-in part 2 is detached from the recess 3, the spring in this embodiment is in a compressed state and belongs to the category of compression spring; when the plug-in part 2 is inserted into the recess 3, the spring recovers its deformation and releases elastic potential energy at the same time, thereby pushing the plug-in part 2 in contact with it into the recess 3; the compression spring is a helical spring that withstands axial pressure, and its shapes include: cylindrical, conical, convex and concave, as well as a small number of non-circular and even various tail end variants. There is a certain gap between the turns of the compression spring. When subjected to external load, the spring contracts and deforms to store deformation energy; this embodiment preferably uses a cylindrical compression spring, that is, a parallel coil spring.

[0047] In this embodiment, there are at least two plug-in parts 2 , and the at least two plug-in parts 2 are commonly connected to a handle 8 , and the handle 8 is used to open or close the door cover 9 .

[0048] See also Figure 1 , which is a preferred embodiment of the present invention, provides a vacuum device, which includes a vacuum device body 10, a door cover 9 rotatably arranged on the vacuum device body 10, and any locking device as described above, wherein the vacuum device body 10 and the door cover 9 are connected by a hinge structure. The hinge structure can be integrally formed with the base in the locking device, or can be relatively independent of the base in the locking device.

[0049] In summary, a locking device for locking a door cover to a preset position away from a vacuum equipment body is provided, the locking device comprising a base provided on the vacuum equipment body and a plug-in portion provided on the door cover, the plug-in portion and the base interacting with each other in a locking manner. The base is provided with a recess at least partially matched with the plug-in portion, the plug-in portion can move from an unlocked position to a locked position and from a locked position to an unlocked position on the recess, and there is at least one recess.

[0050] A vacuum device comprises the above-mentioned locking device, a vacuum device body and a door cover rotatably arranged on the vacuum device body, wherein the vacuum device body and the door cover are connected via a hinge structure. The working principle of the locking device of the vacuum device is roughly as follows: when opening the door cover, firstly, the plug-in part is completely disengaged from the recess by pulling the handle, and then the door cover is propped up in a direction away from the vacuum device body, and when the propped-up height of the door cover reaches a preset height, the handle is pulled again to insert the plug-in part into the recess, thereby realizing the locked open state of the door cover; when closing the door cover, similarly, firstly, the plug-in part is completely disengaged from the recess by pulling the handle, and then the door cover is moved in a direction close to the vacuum device body until the door cover is in direct contact with the vacuum device body, and at this time, the handle is pulled to insert the plug-in part into the recess, thereby realizing the locked closed state of the door cover.

[0051] Compared with the prior art, the locking device and vacuum equipment provided by the present invention have a simple structure and are easy to operate, and the vacuum environment of the vacuum equipment is effectively guaranteed.

[0052] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them with similar methods. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A locking device for a vacuum device, the vacuum device comprising a vacuum device body and a door cover rotatably arranged on the vacuum device body, characterized in that: The locking device comprises a base and an inserting portion, and the locking device is used to lock the door cover to a preset position away from the vacuum equipment body through the matching relationship between the base and the inserting portion; The base is arranged on the vacuum equipment body; The plug-in portion is provided on the door cover, and the plug-in portion interacts with the base portion in a locking manner; Wherein, the base is provided with a recessed portion at least partially matched with the plug-in portion, and the plug-in portion can be moved from an unlocked position to a locked position and from the locked position to the unlocked position on the recessed portion; in, The locking device is also used to: when opening the door cover, insert the plug-in portion into the recessed portion, thereby realizing a locked open state of the door cover; The state of the vacuum device includes a closed state and a plurality of open states; When the door cover is in the locking position close to the vacuum equipment body, the vacuum equipment is in the closed state; the locking position corresponding to the closed state is achieved by cooperating with one of the recesses; When the door cover is in a locking position away from the vacuum equipment body, the vacuum equipment is in the open state; the open state of the vacuum equipment corresponds to more than one locking position, and is achieved by cooperating with more than one recessed portion; each open state of the door cover away from the vacuum equipment body corresponds to an independent recessed portion; The movement trajectory of the plug-in part from one locking position to another locking position forms a fan-shaped on the recess; when the plug-in part is plugged into the recess, the position of the plug-in part corresponds to the center line of the recess; each recess has a center line, and the center lines of all the recesses are on the same plane.

2. The locking device according to claim 1, characterized in that: Also includes: A guide portion is provided on the door cover and is used to guide the movement of the plug-in portion.

3. The locking device according to claim 2, characterized in that: The guide portion comprises a bearing member and a clamping member, and the bearing member is connected to the clamping member.

4. The locking device according to claim 3, characterized in that: The plug-in portion is a linear shaft, and the bearing member is a linear bearing.

5. The locking device according to claim 4, characterized in that: It also includes a reset portion sleeved on the periphery of the plug-in portion and used for pushing the plug-in portion into the recess.

6. The locking device according to claim 5, characterized in that: The reset portion includes a spring, and the spring is connected to the bearing member.

7. The locking device according to claim 6, characterized in that: A stopper is also included, and the stopper is connected to the spring to control the stroke of the spring.

8. The locking device according to any one of claims 1 to 7, characterized in that: There are at least two plug-in parts, and the at least two plug-in parts are commonly connected to a handle, and the handle is used to open or close the door cover.

9. A vacuum equipment, comprising a vacuum equipment body, a door cover rotatably arranged on the vacuum equipment body, and a locking device according to any one of claims 1 to 8, wherein the vacuum equipment body and the door cover are connected by a hinge structure.

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