CN212625527U

CN212625527U - Cavity cover opening mechanism

Info

Publication number: CN212625527U
Application number: CN202022220921.2U
Authority: CN
Inventors: 冯琳
Original assignee: Shanghai Guangchuan Technology Co ltd
Current assignee: Shanghai Guangchuan Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-26
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a cavity mechanism of uncapping of conveniently uncapping in semiconductor vacuum transmission system, include: a chamber body; the chamber body is provided with an accommodating chamber and an opening leading into the accommodating chamber; a cover body capable of covering the opening; the cover body is rotatably connected with the chamber body; a gas spring having a first connection end and a second connection end; the first connecting end is rotatably connected with the chamber body, and the second connecting end is rotatably connected with the cover body; the gas spring is in a compressed state and pushes up against the cover body when the cover body is located at the covering position.

Description

Cavity cover opening mechanism

Technical Field

The utility model relates to a semiconductor vacuum transmission system field especially relates to a cavity mechanism of uncapping.

Background

In a semiconductor vacuum transmission system, in order to maintain and debug vacuum equipment, a cover needs to be opened to clean a cavity and the inside of a robot, and the robot, a robot arm or a robot end effector needs to be moved. Generally, the vacuum transmission equipment is arranged among a plurality of pieces of equipment, and the peripheral equipment is higher than the vacuum transmission equipment, so that the operable space is limited.

The cover of the vacuum transmission device has the diameter of 900 mm, the weight of 30 kg, the weight of the cover, small operable space and unsuitability for direct disassembly and assembly and horizontal movement of the cover.

Currently, a lid hinge is usually used for positioning, so that the lid can rotate around a fulcrum to be opened. The lid is lifted by manual operation, by means of a handle on the lid, to a completely vertical position. And then the safety pin is used for limiting. But because of the lid quality is big, the switch lid is harder, and this in-process whole journey can not be put aside moreover, if unexpected put aside exist in midway and close because of the lid dead weight, have the potential safety hazard, not only press from both sides and hinder operating personnel, the sealed face of vacuum transmission equipment also can damage, damage equipment.

In addition, there are also covers that are rotated to a 90 degree position by turning a hand wheel using a handle that turns the top of the elevator. The cover can stop in the middle of rotating, but this kind of mode of uncapping needs great mounted position because the mechanical structure of gear, and the internal structure is gear structure moreover, through the switch lid, the gear produces the friction, can produce a certain amount of pollution particles, and manufacturing cost is higher. In addition, the cover opening mode can cause deformation damage due to excessive force for closing the cover and excessive extrusion of the sealing ring under stress.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is an object of the present invention to provide a chamber cover opening mechanism in a semiconductor vacuum transport system that facilitates the opening of a cover.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chamber door opening structure comprising:

a chamber body; the chamber body is provided with an accommodating chamber and an opening leading into the accommodating chamber;

a cover body capable of covering the opening; the cover body is rotatably connected with the chamber body;

a gas spring having a first connection end and a second connection end; the first connecting end is rotatably connected with the chamber body, and the second connecting end is rotatably connected with the cover body; the gas spring is in a compressed state and pushes up against the cover body when the cover body is located at the covering position.

In a preferred embodiment, the second connection end is higher than the first connection end when the cover body is in the covering position.

In a preferred embodiment, the gas spring is a nitrogen gas spring.

In a preferred embodiment, the force of the gas spring pushing up against the cover when the cover is in the closed position is greater than the weight of the cover.

In a preferred embodiment, when the cover is opened by a predetermined angle without external force, the gas spring and the cover are in a mechanical equilibrium state, and the predetermined angle is 10 to 30 degrees.

In a preferred embodiment, a base is fixedly arranged at the upper end of the chamber body;

a connecting plate is fixedly arranged on the cover body; one end of the connecting plate is rotatably connected with the base through a pivot shaft; the second connecting end is rotatably connected with the connecting plate, and the first connecting end is rotatably connected with the base.

In a preferred embodiment, the chamber lid opening mechanism further comprises a stopper for stopping the lid body at the open position.

In a preferred embodiment, the opening angle of the lid body at the open position is 90 degrees or more.

As a preferred embodiment, the stopper comprises a shear pin; the safety pin is inserted into the base and the connecting plate to limit the cover in the open position when the cover is in the open position.

As a preferred embodiment, the chamber door-opening mechanism is further provided with a lock mechanism that can be unlocked; the locking mechanism is used for locking the cover body on the chamber main body.

Has the advantages that:

the cavity structure of uncapping that this embodiment provided is equipped with gas spring, and this gas spring is in compression state and upwards top when the lid is located the lid and closes the position the lid, and then can offset the weight of part lid because of gas spring's existence when opening the lid for uncap more laborsavingly. Therefore, the chamber cover opening structure of the embodiment can facilitate the opening of the cover by an operator

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a top view of a chamber door opening structure provided in one embodiment of the present application;

FIG. 2 is a side view of FIG. 1 in mechanical equilibrium;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 3 in a closed position;

fig. 5 is a side view of fig. 1 in an open position.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 5. An embodiment of the utility model provides a cavity structure of uncapping, this cavity uncap can use in semiconductor vacuum transmission system. Specifically, this chamber structure of uncapping includes: a chamber body 100; the chamber body 100 has a receiving chamber and an opening 102 into the receiving chamber; a cover body 200 capable of covering the opening 102; the lid 200 is rotatably coupled to the chamber body 100; a gas spring 300 having a first connection end 301 and a second connection end 302; the first connection end 301 is rotatably connected to the chamber body 100, and the second connection end 302 is rotatably connected to the cover 200; the gas spring 300 is compressed when the cover 200 is in the closed position and pushes up against the cover 200.

The chamber cover opening structure provided by this embodiment is provided with the gas spring 300, and the gas spring 300 is in a compressed state and pushes up against the cover body 200 when the cover body 200 is located at the cover closing position, so that the weight of part of the cover body 200 can be offset due to the existence of the gas spring 300 when the cover body 200 is opened, and the cover opening is more labor-saving. Therefore, the chamber uncovering structure of the embodiment can facilitate uncovering of an operator.

As shown in fig. 1 and 4, the cover 200 has a closed position covering the chamber body 100 and an open position shown in fig. 5. For convenience of operation, the opening angle of the cover body 200 at the open position is more than 90 degrees. Preferably, the opening angle of the cover 200 at the open position is 90 to 100 degrees. In the present embodiment, the position of the cover 200 in fig. 2 can be regarded as being at an intermediate position between the closed position and the open position. The opening 102 of the chamber body 100 may be a circular opening 102, and the lid 200 may be a circular lid 200. A handle 202 for facilitating manual operation is provided on the outer wall of the lid body 200.

In the present embodiment, the gas spring 300 is preferably a nitrogen gas spring. In order to facilitate the opening of the lid body 200 and prevent the lid body 200 from excessively pressing the inner seal ring, the gas spring 300 is in a state of abutting against the lid body 200 at the closed position, thereby offsetting a portion of the weight of the lid body 200 and preventing the inner seal ring from excessively pressing. As shown in fig. 4, the second connection end 302 is higher than the first connection end 301 when the cover body 200 is at the covering position. Specifically, the elastic force direction of the gas spring 300 is along the length direction of the gas spring 300 from the first connection end 301 to the second connection end 302. In the closed position, the vertical component of the partial spring force counteracts the weight of the cover 200.

In this embodiment, the acting force of the gas spring 300 pushing against the cover 200 when the cover 200 is at the closed position is greater than the gravity of the cover 200. Specifically, when the cover 200 is opened by a predetermined angle without external force, the gas spring 300 and the cover 200 are in a mechanical equilibrium state, where the predetermined angle is 10 degrees to 30 degrees, for example, the predetermined angle may be about 16 degrees.

In this embodiment, a base 101 is fixedly disposed on an upper end of the chamber body 100. A connecting plate 201 is fixedly arranged on the cover body 200. One end of the connecting plate 201 is rotatably connected to the base 101 through a pivot shaft. The second connecting end 302 is rotatably connected with the connecting plate 201, and the first connecting end 301 is rotatably connected with the base 101. The end of the chamber body 100 having the opening 102 has an annular end surface to which the pedestal 101 is secured. The connection plate 201 is fixedly connected to the outer wall of the lid body 200. The attachment plate 201 may include a first portion 2011 fixedly coupled to the cover 200 and a second portion 2012 rotatably coupled to the base 101. The first part 2011 and the second part 2012 are fixedly connected. The first connection 301 of the gas spring 300 is hinged to (the first part 2011 of) the connection plate 201 and the second connection 302 is hinged to the base 101. During the rotation of the cover 200 from the closed position to the open position, the first connecting end 301 is always higher than the second connecting end 302.

In this embodiment, the chamber cover opening structure further includes a stopper for limiting the cover 200 to the open position. Specifically, the stopper includes a shear pin. The safety pin is inserted into the base 101 and the connecting plate 201 to limit the cover 200 to the open position when the cover 200 is in the open position. In order to facilitate the positioning of the cover, the base 101 may further be provided with a limiting structure. When the cover body 200 rotates from the covering position to the opening position, the connecting plate 201 contacts the limiting structure and further does not need to rotate continuously, and at the moment, the safety pin is inserted into the base 101 and the connecting plate 201, so that the relative position of the connecting plate 201 and the base 101 is fixed.

In this embodiment, the chamber door opening structure is further provided with a lock mechanism that can be unlocked. The locking mechanism is used to lock the cover 200 to the chamber body 100. The locking mechanism may be a safety lock by which the lid 200 is locked to the chamber body 100, maintaining closure. Locking or releasing of the lid body 200 in the closed position is achieved by an opening or safety lock.

Wherein the lid body 200 is locked by the locking mechanism when the lid body 200 is closed on the chamber body 100, and is prevented from being automatically opened by the urging force of the gas spring 300. Taking the mechanical equilibrium position as about 16 degrees as an example, after the safety lock is opened to release the cover body 200, no manual force is needed, the cover body 200 is slowly and automatically opened to the position about 16 degrees under the action of the gas spring 300 to stop, and at this time, the handle 202 is manually forced to continue to open the cover body 200, so that the cover body 200 is rotated to the opening position limited and stopped. For safety, the lid body 200 is held in the open position by a safety pin, and the completely opened state is maintained.

Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the inventors be construed as having contemplated such subject matter as being part of the disclosed inventive subject matter.

Claims

1. A chamber lid opening mechanism, comprising:

2. The chamber door opening mechanism according to claim 1, wherein the second connecting end is higher than the first connecting end when the cover body is in the closed position.

3. A chamber door release mechanism according to claim 1, wherein the gas spring is a nitrogen gas spring.

4. A chamber lid release mechanism according to claim 1, wherein the force of the gas spring acting upwardly against the lid when the lid is in the closed position is greater than the weight of the lid.

5. A chamber door release mechanism according to claim 4, wherein the gas spring is in mechanical equilibrium with the lid when the lid is opened a predetermined angle, the predetermined angle being 10-30 degrees, in the absence of an external force.

6. A chamber door-opening mechanism according to claim 1, wherein a base is fixedly provided at an upper end of the chamber body;

7. The chamber door release mechanism according to claim 6, further comprising a stopper that stops the cover at an open position.

8. A chamber door release mechanism according to claim 7, wherein the opening angle of the lid in the open position is above 90 degrees.

9. The chamber door release mechanism according to claim 7, wherein the retainer comprises a shear pin; the safety pin is inserted into the base and the connecting plate to limit the cover in the open position when the cover is in the open position.

10. A chamber door release mechanism according to claim 5, further provided with a lock mechanism that can be unlocked; the locking mechanism is used for locking the cover body on the chamber main body.