CN212330827U - Clamping device for assembling keyboard - Google Patents
Clamping device for assembling keyboard Download PDFInfo
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- CN212330827U CN212330827U CN202020367996.0U CN202020367996U CN212330827U CN 212330827 U CN212330827 U CN 212330827U CN 202020367996 U CN202020367996 U CN 202020367996U CN 212330827 U CN212330827 U CN 212330827U
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- spring
- mounting
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Abstract
The utility model discloses a clamping device for assembling a keyboard, which comprises a bottom plate with a rectangular structure and horizontally arranged, wherein a mounting plate is arranged on the bottom plate, and the upper surface of the mounting plate is provided with a clamping station and is used for placing the keyboard; limiting blocks are respectively arranged on the mounting plate corresponding to the left side, the right side and the front side of the clamping station and are respectively used for being attached to and supported on the left end face, the right end face and the front side face of the keyboard; a clamping mechanism is arranged at the rear side position of the upper surface of the bottom plate, and the clamping mechanism is provided with a clamping plane; the mounting plate translation control structure is arranged between the mounting plate and the bottom plate and can drive the mounting plate to horizontally move backwards, the projection of the clamping plane in the horizontal direction is enabled to be overlapped with the upper surface of the keyboard on the keyboard placing station, and the clamping plane can be attached to and supported on the upper surface of the keyboard and provide downward clamping force. The utility model has the characteristics of can conveniently get more and put the keyboard, the clamping is more reliable.
Description
Technical Field
The utility model belongs to the technical field of the electronic components, concretely relates to clamping device is used in keyboard assembly.
Background
The keyboard is the most common and main input device, and english letters, numbers, punctuations and the like can be input into the computer through the keyboard, so as to send commands, input data and the like to the computer. The computer keyboard is a channel for inputting control information of character information into a computer, and is evolved from a keyboard of an English typewriter. It was first presented on computers, and was also a component called a teletypewriter.
During the production and manufacturing of the computer keyboard, a computer body needs to be clamped on a keyboard production line, and then the corresponding installation of the keyboard keys is butted on the keyboard body. During the assembling process, the keyboard body needs to be clamped and then the keyboard keys need to be assembled. Among keyboard clamping devices of the prior art, chinese patent (CN206344059U) discloses an assembling jig for an automatic keyboard assembling line; chinese patent application (CN108597933A) discloses an assembly jig for an automatic keyboard assembly line; chinese patent (CN206717297U) discloses a keyboard laser etching positioning fixture; and chinese patent (CN208796887U) discloses an assembling jig for an automatic keyboard assembling line. The above-mentioned patent structure has the following problems: 1, the keyboard placing position and the keyboard clamping position are the same position in the horizontal direction, so that the keyboard is placed on the clamping device, blocking and interference are easily generated between each component and the keyboard body, and the keyboard body is not convenient to take and place; 2 the keyboard is not positioned in the vertical direction or is not clamped reliably enough; 3 when the keyboard thickness size changes, inconvenient adjustment clamping part structure makes it adapt to and carries out the clamping to the keyboard of different thickness sizes.
Therefore, how to provide a clamping device for assembling a keyboard, which can more conveniently take and place the keyboard and more reliably clamp the keyboard, becomes a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide one kind can be more conveniently get and put the keyboard, the clamping device is used in the keyboard assembly of clamping more reliable.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a clamping device for assembling a keyboard comprises a bottom plate which is of a rectangular structure and is horizontally arranged, wherein an installation plate is arranged on the bottom plate, and a clamping station is arranged on the upper surface of the installation plate and used for placing the keyboard; limiting blocks are respectively arranged on the mounting plate corresponding to the left side, the right side and the front side of the clamping station and are respectively used for being attached to and supported on the left end face, the right end face and the front side face of the keyboard; the clamping mechanism is arranged at the rear side of the upper surface of the bottom plate and is provided with a clamping plane; the mounting plate translation control structure is arranged between the mounting plate and the bottom plate and can drive the mounting plate to horizontally move backwards, the projection of the clamping plane in the horizontal direction is enabled to be overlapped with the upper surface of the keyboard on the keyboard placing station, and the clamping plane can be attached to and supported on the upper surface of the keyboard and provide downward clamping force.
In this way, when the clamping device for assembling the keyboard is used, the keyboard is placed on the clamping station on the upper surface of the mounting plate, and the left end face, the right end face and the front side face of the keyboard are respectively abutted to the left side, the right side and the front side of the mounting plate; then the mounting plate translation control structure drives the mounting plate to move backwards and horizontally, so that the projection of the clamping plane in the horizontal direction is overlapped with the upper surface of the keyboard on the keyboard placing station and falls into the clamping range area, and then the clamping plane is attached to and supported on the upper surface of the keyboard and provides downward clamping force. After the keyboard is assembled, the clamping plane is separated from the upper surface of the keyboard, then the mounting plate translation control structure drives the mounting plate to move forwards horizontally, the mounting plate is separated from the clamping range of the clamping mechanism, and the keyboard is taken down. In the structure, the clamping mechanism can not generate interference to the taking and placing of the keyboard, so that the keyboard can be taken and placed more conveniently, and the operation is more convenient. In the structure, the clamping mechanism can adopt the existing mechanisms such as the existing quick pressing clamp and the existing quick clamping fixture.
As optimization, the limiting blocks comprise a left limiting block, a right limiting block and a front limiting block; and left stopper, right stopper and preceding stopper all are rectangular shape structure, and left stopper and right stopper set up along the mounting panel fore-and-aft direction, and preceding stopper sets up along the mounting panel left and right direction.
Therefore, the structure and the arrangement direction of the left limiting block, the right limiting block and the front limiting block can better limit the keyboard, and the operation is more convenient.
Preferably, the mounting plate translation control structure comprises a mounting plate guide structure arranged between the bottom plate and the mounting plate, and the mounting plate can move along the front and back directions of the bottom plate; the driving end of the driving mechanism is connected with the mounting plate and can drive the mounting plate to move back and forth along the bottom plate.
Like this, through setting up direction and drive structure, simpler, more convenient control.
Preferably, the mounting plate guide structure comprises a mounting groove of a rectangular structure arranged on the upper surface of the bottom plate, and the length direction of the mounting groove is arranged along the left and right directions of the bottom plate; the mounting panel is the rectangular plate structure, and the horizontally setting of mounting panel is on the mounting groove bottom surface, and mounting panel length direction arranges along mounting groove length direction, but mounting panel both ends face corresponds separately and pastes and sliding fit with two lateral walls of mounting groove.
Therefore, the guide structure of the mounting plate is simpler, and the guide is more reliable; and the front-back moving position of the mounting plate on the bottom plate can be better defined.
Preferably, the driving mechanism comprises a driving cylinder arranged on the front side of the base plate, the cylinder body end of the driving cylinder is connected with the base plate, and the piston rod end of the driving cylinder is connected with the front side face of the mounting plate.
Like this, actuating mechanism is simpler, adopts the cylinder structure, and easy to assemble more, and the drive is more reliable.
Preferably, the two driving cylinders are arranged at intervals along the left and right direction of the bottom plate.
Therefore, the mounting plate is driven to move more stably and reliably.
As optimization, vertical connecting holes are respectively arranged at four corner positions of the mounting plate.
Therefore, the whole device is more convenient to install and use.
Preferably, the two clamping mechanisms are arranged at intervals along the left and right directions of the bottom plate.
In this way the clamping of the keyboard is more reliable.
Preferably, the clamping mechanism comprises a vertical mounting shaft which is fixedly connected to the bottom plate; the mounting shaft is slidably sleeved with a first spring plate and a second spring plate which are in strip shapes; the first spring plate is positioned above the second spring plate and arranged along the front-back direction of the bottom plate; the rear ends of the first spring plate and the second spring plate are connected through a third spring plate so that the first spring plate, the second spring plate and the third spring plate are integrally in a U-shaped structure; the length of the first spring plate is greater than that of the second spring plate, and the lower surface of the front end of the first spring plate forms the clamping plane; be fixed with telescopic machanism on first spring board, be provided with the intermediate lamella between epaxial first spring board of installation and second spring board, just telescopic machanism's working end butt supports at the intermediate lamella lower surface to can drive first spring board and second spring board and move downwards, so that the tight plane of clamp that first spring board has can paste the support at the keyboard upper surface and provide decurrent clamp force.
Therefore, when the clamping mechanism is used, the working end of the telescopic mechanism is abutted to the middle plate, so that the distance between the middle plate and the second spring plate is increased, the second spring plate transmits force to the first spring plate through the third spring plate, so that the first spring plate has a downward movement trend, the first spring plate can press the keyboard below the first spring plate, the lower surface of the front end of the first spring plate is abutted to and supported on the upper surface of the keyboard to be pressed, and the pressing force is applied to the upper surface of the keyboard to be pressed to form a plane, so that the upper surface of the keyboard can be protected, and the damage to the surface of the keyboard is reduced; on the other hand, the clamping quality is better through surface clamping, and the clamping reliability can be improved.
Preferably, the lower surface of the front end of the first spring plate is provided with a limiting bump, and the front side surface of the limiting bump can be attached to and supported on the rear side surface of the keyboard.
Like this, the spacing lug that sets up can be treated and compressed tightly the keyboard and play spacing effect, can make the keyboard upper surface more reasonable with the area that first spring overlaps in the horizontal direction, improves the reliability of clamping.
Preferably, a gasket made of rubber is arranged on the lower surface of the front end of the first spring plate, and the lower surface of the gasket forms the clamping plane.
Like this, through setting up the gasket, can be better play the guard action to the keyboard to make the clamping more reliable.
As optimization, telescopic machanism is the cylinder, and the cylinder body front end connection of cylinder is fixed at second spring board lower surface, and the piston rod that corresponds the cylinder on the second spring board is equipped with the hole of stepping down that supplies its vertical passing, and cylinder piston rod end connection fixes on the intermediate lamella lower surface.
Like this, telescopic machanism is simpler, and the cylinder is more easy to assemble to it is more reliable to work.
Preferably, the outer circumferential surface of the mounting shaft is of an external thread structure, and the lower end of the mounting shaft is in threaded connection with a threaded connection hole formed in the bottom plate.
Like this, be connected between convenient installation axle and the base more to it is more reliable to connect.
For optimization, a sleeve is sleeved on the mounting shaft in a vertically sliding manner, and positioning nuts are arranged on the mounting shaft corresponding to two ends of the sleeve; the first spring plate and the second spring plate are sleeved outside the sleeve, the outer circumferential surface of the sleeve is of an external thread structure, and limiting nuts are arranged at two ends of the sleeve at intervals of the first spring plate and the second spring plate respectively; and the middle plate is connected and fixed on the sleeve.
Therefore, the vertical positions of the first spring plate and the second spring plate can be changed by adjusting the vertical position of the sleeve on the mounting shaft, so that the distance between the first spring plate and the upper surface of the keyboard can be adjusted, and the keyboards with different thicknesses can be clamped; and through the position of adjustment stop nut, can adjust the size of clamp force to the clamping is carried out better.
Preferably, the first spring plate, the second spring plate and the third spring plate are all made of spring steel.
In this way, the clamping force can be better provided.
Preferably, the first spring plate, the second spring plate and the third spring plate are integrally formed.
In this way, the pressing force can be better provided. The structure is simpler.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a partially enlarged view of the position C in fig. 2.
Fig. 4 is a sectional view B-B of fig. 1.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1 to 4: a clamping device for assembling a keyboard comprises a bottom plate 1 which is of a rectangular structure and is horizontally arranged, wherein an installation plate 2 is arranged on the bottom plate, and a clamping station is arranged on the upper surface of the installation plate and used for placing a keyboard 3; limiting blocks 4 are respectively arranged on the mounting plate corresponding to the left side, the right side and the front side of the clamping station and are respectively used for being attached to and supported on the left end face, the right end face and the front side face of the keyboard; a clamping mechanism 5 is arranged at the rear side position of the upper surface of the bottom plate 1, and the clamping mechanism is provided with a clamping plane; a mounting plate translation control structure is arranged between the mounting plate 2 and the bottom plate 1 and can drive the mounting plate to move backwards and horizontally, the projection of the clamping plane in the horizontal direction is overlapped with the upper surface of the keyboard on the keyboard placing station, and the clamping plane can be attached to and supported on the upper surface of the keyboard and provide downward clamping force.
In this way, when the clamping device for assembling the keyboard is used, the keyboard is placed on the clamping station on the upper surface of the mounting plate, and the left end face, the right end face and the front side face of the keyboard are respectively abutted to the left side, the right side and the front side of the mounting plate; then the mounting plate translation control structure drives the mounting plate to move backwards and horizontally, so that the projection of the clamping plane in the horizontal direction is overlapped with the upper surface of the keyboard on the keyboard placing station and falls into the clamping range area, and then the clamping plane is attached to and supported on the upper surface of the keyboard and provides downward clamping force. After the keyboard is assembled, the clamping plane is separated from the upper surface of the keyboard, then the mounting plate translation control structure drives the mounting plate to move forwards horizontally, the mounting plate is separated from the clamping range of the clamping mechanism, and the keyboard is taken down. In the structure, the clamping mechanism can not generate interference to the taking and placing of the keyboard, so that the keyboard can be taken and placed more conveniently, and the operation is more convenient. In the structure, the clamping mechanism can adopt the existing mechanisms such as the existing quick pressing clamp and the existing quick clamping fixture.
In this specific embodiment, the limiting block 4 includes a left limiting block 6, a right limiting block 7 and a front limiting block 8; and left stopper, right stopper and preceding stopper all are rectangular shape structure, and left stopper and right stopper set up along the mounting panel fore-and-aft direction, and preceding stopper sets up along the mounting panel left and right direction.
Therefore, the structure and the arrangement direction of the left limiting block, the right limiting block and the front limiting block can better limit the keyboard, and the operation is more convenient.
In this embodiment, the mounting plate translation control structure includes a mounting plate guide structure disposed between the bottom plate and the mounting plate, and enables the mounting plate to move in the front-back direction of the bottom plate; the driving end of the driving mechanism is connected with the mounting plate and can drive the mounting plate to move back and forth along the bottom plate.
Like this, through setting up direction and drive structure, simpler, more convenient control.
In the embodiment, the mounting plate guide structure comprises a mounting groove 9 with a rectangular structure, which is arranged on the upper surface of the bottom plate, and the length direction of the mounting groove 9 is arranged along the left-right direction of the bottom plate; mounting panel 2 is the rectangular plate structure, and the horizontally setting of mounting panel is on the mounting groove bottom surface, and mounting panel length direction arranges along mounting groove length direction, but mounting panel both ends face corresponds separately and pastes and sliding fit with two lateral walls of mounting groove.
Therefore, the guide structure of the mounting plate is simpler, and the guide is more reliable; and the front-back moving position of the mounting plate on the bottom plate can be better defined.
In this embodiment, the driving mechanism includes a driving cylinder 10 disposed at the front side of the bottom plate, the cylinder end of the driving cylinder is connected to the bottom plate, and the piston rod end of the driving cylinder is connected to the front side surface of the mounting plate.
Like this, actuating mechanism is simpler, adopts the cylinder structure, and easy to assemble more, and the drive is more reliable.
In this embodiment, the two driving cylinders 10 are provided at intervals in the left-right direction of the base plate.
Therefore, the mounting plate is driven to move more stably and reliably.
In the present embodiment, vertical connection holes 11 are respectively provided at four corner positions of the mounting plate.
Therefore, the whole device is more convenient to install and use.
In this embodiment, the two clamping mechanisms are arranged at intervals along the left-right direction of the bottom plate.
In this way the clamping of the keyboard is more reliable.
In this embodiment, the clamping mechanism 5 includes a vertical mounting shaft 12 fixed to the bottom plate; the mounting shaft is slidably sleeved with a first spring plate 13 and a second spring plate 14 which are in long strip shapes; the first spring plate is positioned above the second spring plate and arranged along the front-back direction of the bottom plate; the rear ends of the first spring plate and the second spring plate are connected through a third spring plate 15 so that the first spring plate, the second spring plate and the third spring plate are integrally in a U-shaped structure; the length of the first spring plate is greater than that of the second spring plate, and the lower surface of the front end of the first spring plate forms the clamping plane; be fixed with telescopic machanism 16 on first spring board, be provided with intermediate lamella 17 between epaxial first spring board of installation and the second spring board, just telescopic machanism's working end butt supports at the intermediate lamella lower surface to can drive first spring board and second spring board and move downwards, so that the clamping plane that first spring board has can paste the support and provide decurrent clamp force at the keyboard upper surface mutually.
Therefore, when the clamping mechanism is used, the working end of the telescopic mechanism is abutted to the middle plate, so that the distance between the middle plate and the second spring plate is increased, the second spring plate transmits force to the first spring plate through the third spring plate, so that the first spring plate has a downward movement trend, the first spring plate can press the keyboard below the first spring plate, the lower surface of the front end of the first spring plate is abutted to and supported on the upper surface of the keyboard to be pressed, and the pressing force is applied to the upper surface of the keyboard to be pressed to form a plane, so that the upper surface of the keyboard can be protected, and the damage to the surface of the keyboard is reduced; on the other hand, the clamping quality is better through surface clamping, and the clamping reliability can be improved.
In the present embodiment, the lower surface of the front end of the first spring plate is provided with a limiting bump 18, and the front side surface of the limiting bump can be attached to and supported on the rear side surface of the keyboard.
Like this, the spacing lug that sets up can be treated and compressed tightly the keyboard and play spacing effect, can make the keyboard upper surface more reasonable with the area that first spring overlaps in the horizontal direction, improves the reliability of clamping.
In this embodiment, a gasket 19 made of rubber is provided on the lower surface of the front end of the first spring plate, and the lower surface of the gasket forms the clamping plane.
Like this, through setting up the gasket, can be better play the guard action to the keyboard to make the clamping more reliable.
In this specific embodiment, the telescopic mechanism 16 is a cylinder, the front end of the cylinder body of the cylinder is connected and fixed on the lower surface of the second spring plate, the piston rod of the second spring plate corresponding to the cylinder is provided with a yielding hole for the piston rod to vertically pass through, and the end of the piston rod of the cylinder is connected and fixed on the lower surface of the middle plate.
Like this, telescopic machanism is simpler, and the cylinder is more easy to assemble to it is more reliable to work.
In this embodiment, the outer circumferential surface of the mounting shaft 12 is an external thread structure, and the lower end of the mounting shaft is screwed into a threaded connection hole formed in the bottom plate.
Like this, be connected between convenient installation axle and the base more to it is more reliable to connect.
In the embodiment, a sleeve 20 is sleeved on the mounting shaft in a vertically sliding manner, and positioning nuts 21 are arranged on the mounting shaft corresponding to two ends of the sleeve; the first spring plate and the second spring plate are sleeved outside the sleeve, the outer circumferential surface of the sleeve is of an external thread structure, and two ends of the sleeve are respectively provided with a limiting nut 22 at intervals of the first spring plate and the second spring plate; and the middle plate is connected and fixed on the sleeve.
Therefore, the vertical positions of the first spring plate and the second spring plate can be changed by adjusting the vertical position of the sleeve on the mounting shaft, so that the distance between the first spring plate and the upper surface of the keyboard can be adjusted, and the keyboards with different thicknesses can be clamped; and through the position of adjustment stop nut, can adjust the size of clamp force to the clamping is carried out better.
In this embodiment, the first spring plate, the second spring plate and the third spring plate are all made of spring steel.
In this way, the clamping force can be better provided.
In this embodiment, the first spring plate, the second spring plate and the third spring plate are integrally formed.
In this way, the pressing force can be better provided. The structure is simpler.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A clamping device for assembling a keyboard comprises a bottom plate which is of a rectangular structure and is horizontally arranged, wherein an installation plate is arranged on the bottom plate, and a clamping station is arranged on the upper surface of the installation plate and used for placing the keyboard; limiting blocks are respectively arranged on the mounting plate corresponding to the left side, the right side and the front side of the clamping station and are respectively used for being attached to and supported on the left end face, the right end face and the front side face of the keyboard; the clamping mechanism is arranged at the rear side of the upper surface of the bottom plate and is provided with a clamping plane; the mounting plate translation control structure is arranged between the mounting plate and the bottom plate and can drive the mounting plate to horizontally move backwards, the projection of the clamping plane in the horizontal direction is enabled to be overlapped with the upper surface of the keyboard on the keyboard placing station, and the clamping plane can be attached to and supported on the upper surface of the keyboard and provide downward clamping force.
2. A clamping device for assembling a keyboard according to claim 1, wherein: the limiting blocks comprise a left limiting block, a right limiting block and a front limiting block; and left stopper, right stopper and preceding stopper all are rectangular shape structure, and left stopper and right stopper set up along the mounting panel fore-and-aft direction, and preceding stopper sets up along the mounting panel left and right direction.
3. A clamping device for assembling a keyboard according to claim 1, wherein: the mounting plate translation control structure comprises a mounting plate guide structure arranged between the bottom plate and the mounting plate, and the mounting plate can move along the front and back directions of the bottom plate; the driving end of the driving mechanism is connected with the mounting plate and can drive the mounting plate to move back and forth along the bottom plate.
4. A clamping device for assembling a keyboard according to claim 3, wherein: the mounting plate guide structure comprises a mounting groove of a rectangular structure arranged on the upper surface of the bottom plate, and the length direction of the mounting groove is arranged along the left and right directions of the bottom plate; the mounting panel is the rectangular plate structure, and the horizontally setting of mounting panel is on the mounting groove bottom surface, and mounting panel length direction arranges along mounting groove length direction, but mounting panel both ends face corresponds separately and pastes and sliding fit with two lateral walls of mounting groove.
5. The clamping device for assembling a keyboard according to claim 4, wherein: the driving mechanism comprises a driving cylinder arranged on the front side of the bottom plate, the cylinder body end of the driving cylinder is connected with the bottom plate, and the piston rod end of the driving cylinder is connected with the front side face of the mounting plate.
6. A clamping device for assembling a keyboard according to claim 5, wherein: the driving cylinders are two arranged at intervals along the left and right directions of the bottom plate.
7. A clamping device for assembling a keyboard according to claim 1, wherein: vertical connecting holes are respectively arranged at four corner positions of the mounting plate.
8. A clamping device for assembling a keyboard according to claim 1, wherein: the clamping mechanisms are two clamping mechanisms which are arranged at intervals along the left and right directions of the bottom plate.
9. A clamping device for assembling a keyboard according to claim 1, wherein: the clamping mechanism comprises a vertical mounting shaft which is fixedly connected to the bottom plate; the mounting shaft is slidably sleeved with a first spring plate and a second spring plate which are in strip shapes; the first spring plate is positioned above the second spring plate and arranged along the front-back direction of the bottom plate; the rear ends of the first spring plate and the second spring plate are connected through a third spring plate so that the first spring plate, the second spring plate and the third spring plate are integrally in a U-shaped structure; the length of the first spring plate is greater than that of the second spring plate, and the lower surface of the front end of the first spring plate forms the clamping plane; be fixed with telescopic machanism on first spring board, be provided with the intermediate lamella between epaxial first spring board of installation and second spring board, just telescopic machanism's working end butt supports at the intermediate lamella lower surface to can drive first spring board and second spring board and move downwards, so that the tight plane of clamp that first spring board has can paste the support at the keyboard upper surface and provide decurrent clamp force.
10. A clamping device for assembling a keyboard according to claim 9, wherein: a limiting lug is arranged on the lower surface of the front end of the first spring plate, and the front side surface of the limiting lug can be attached to and supported on the rear side surface of the keyboard;
a gasket made of rubber material is arranged on the lower surface of the front end of the first spring plate, and the lower surface of the gasket forms the clamping plane;
the telescopic mechanism is an air cylinder, the front end of the cylinder body of the air cylinder is fixedly connected to the lower surface of the second spring plate, a piston rod of the air cylinder, which corresponds to the second spring plate, is provided with a yielding hole for the piston rod to vertically penetrate through, and the end of the piston rod of the air cylinder is fixedly connected to the lower surface of the middle plate;
the outer circumferential surface of the mounting shaft is of an external thread structure, and the lower end of the mounting shaft is in threaded connection with a threaded connection hole formed in the bottom plate;
a sleeve is sleeved on the mounting shaft in a vertically sliding manner, and positioning nuts are arranged on the mounting shaft corresponding to two ends of the sleeve; the first spring plate and the second spring plate are sleeved outside the sleeve, the outer circumferential surface of the sleeve is of an external thread structure, and limiting nuts are arranged at two ends of the sleeve at intervals of the first spring plate and the second spring plate respectively; the middle plate is connected and fixed on the sleeve;
the first spring plate, the second spring plate and the third spring plate are all made of spring steel;
the first spring plate, the second spring plate and the third spring plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367996.0U CN212330827U (en) | 2020-03-21 | 2020-03-21 | Clamping device for assembling keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367996.0U CN212330827U (en) | 2020-03-21 | 2020-03-21 | Clamping device for assembling keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212330827U true CN212330827U (en) | 2021-01-12 |
Family
ID=74086302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020367996.0U Expired - Fee Related CN212330827U (en) | 2020-03-21 | 2020-03-21 | Clamping device for assembling keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212330827U (en) |
-
2020
- 2020-03-21 CN CN202020367996.0U patent/CN212330827U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210112 |