CN219055334U - Pressure-adjustable pressure-maintaining and pressure-detecting mechanism - Google Patents
Pressure-adjustable pressure-maintaining and pressure-detecting mechanism Download PDFInfo
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- CN219055334U CN219055334U CN202222583030.2U CN202222583030U CN219055334U CN 219055334 U CN219055334 U CN 219055334U CN 202222583030 U CN202222583030 U CN 202222583030U CN 219055334 U CN219055334 U CN 219055334U
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Abstract
The utility model discloses a pressure-adjustable mechanism for maintaining pressure and detecting pressure, which comprises a pressure maintaining device, a buffer device, a jacking device and a detecting device, the buffer device and the detection device are arranged on the pressure maintaining device, and the jacking device is arranged below the pressure maintaining device, wherein: the pressure maintaining device comprises a pressure maintaining bottom plate, upright posts, pressure maintaining fixed plates, electric cylinders and pressing blocks, wherein the pressure maintaining bottom plate comprises two pressure maintaining bottom plates, the pressure maintaining bottom plates are distributed and installed on a workbench surface in a left-right mode, the pressure maintaining fixed plates are transversely installed above the pressure maintaining bottom plate, the upright posts comprise four pressure maintaining bottom plates, the upright posts are vertically installed between the two pressure maintaining bottom plates and the pressure maintaining fixed plates in a two-two mode, the electric cylinders are vertically installed in the middle of the pressure maintaining fixed plates, electric cylinder rods extend downwards, and the pressing blocks are connected with the lower ends of the electric cylinder rods. The utility model has high processing efficiency, can accurately adjust the dwell time and dwell pressure, has good processing effect, is suitable for dwell pressure after the product film is pasted on a film pasting machine, and can also be suitable for other dwell equipment.
Description
Technical Field
The utility model relates to the technical field of product pressure maintaining equipment, in particular to a pressure-adjustable pressure maintaining and pressure detecting mechanism.
Background
Because the precision of products is higher in industries such as electronics, communication and semiconductors, a film sticking machine is often used for sticking films to the products, and pressure is maintained after the products are stuck with films, so that the film sticking effect is ensured.
Pressure maintaining after the product pad pasting of prior art pair, include two modes: firstly, manual operation pressure maintaining is carried out, and the flow is as follows: manually placing the product to be pressure-maintained on a pressure maintaining machine from the production line; after the product is put, starting the equipment by two hands; maintaining the pressure of the product for a certain time according to the set time; and (5) manually taking out the pressure-maintaining product from the equipment and placing the pressure-maintaining product on a return line. Secondly, the film sticking machine automatically keeps pressure, the film sticking machine is provided with a pressure keeping mechanism, a product to be kept pressure is automatically taken into the jig, and after the product is automatically kept pressure, the product after the product is kept pressure is placed on a production line.
The pressure maintaining mode after film pasting of the two products has the following defects: the pressure is maintained by manual operation, each device needs to be provided with an operator, and labor is consumed, and the efficiency is low; the automatic pressurize of sticking film machine, though improved sticking film efficiency, but unable accurate regulation dwell time and pressurize pressure, unable laminating effect of guaranteeing, and its pressurize mechanism application range is limited, can't be applicable to other pressurize equipment.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the pressure-adjustable pressure-maintaining and pressure-detecting mechanism which is high in machining efficiency, good in machining effect and wide in application range, and can accurately adjust the pressure-maintaining time and the pressure-maintaining pressure.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a pressurize and pressure detection's mechanism with adjustable pressure, includes pressure maintaining device, buffer, jacking device and detection device, buffer and detection device install on pressure maintaining device, jacking device installs in pressure maintaining device's below, wherein:
the pressure maintaining device comprises two pressure maintaining bottom plates, upright posts, pressure maintaining fixed plates, electric cylinders and pressing blocks, wherein the two pressure maintaining bottom plates are horizontally arranged on a workbench surface, the four pressure maintaining fixed plates are transversely arranged above the pressure maintaining bottom plates, the four upright posts are vertically arranged between the two pressure maintaining bottom plates and the pressure maintaining fixed plates in a two-by-two mode, the electric cylinders are vertically arranged in the middle parts of the pressure maintaining fixed plates, electric cylinder rods extend downwards, and the pressing blocks are connected to the lower ends of the electric cylinder rods;
the detection device comprises an upper detection connecting plate, a pressure sensor, an instrument and a lower detection connecting plate, wherein the upper detection connecting plate is connected to the tail end of the electric cylinder rod, the lower detection connecting plate is positioned at the lower end of the upper detection connecting plate, the instrument is electrically connected with the pressure sensor, and the pressure sensor is arranged between the upper detection connecting plate and the lower detection connecting plate and is used for detecting the pressure between the upper detection connecting plate and the lower detection connecting plate and displaying pressure data on the instrument;
the jacking device comprises a jacking bottom plate, a jacking oil cylinder and a jig, wherein the jacking bottom plate is arranged on a working table surface between two pressure maintaining bottom plates, the jacking oil cylinder is arranged at the upper end of the jacking bottom plate, the jig is arranged at the tail end of an oil cylinder rod of the jacking oil cylinder, and a product to be subjected to pressure maintaining is arranged in the jig and can ascend or descend relative to the working table surface under the transmission action of the oil cylinder rod so as to be attached to or far away from a pressing block.
As a further illustration of the present utility model,
preferably, the buffer device comprises four buffer fixing plates, a fine optical axis and a flanged linear bearing, wherein the flanged linear bearing is distributed in the pressure maintaining fixing plates around the electric cylinder at intervals, the buffer fixing plates comprise two buffer fixing plates which are respectively positioned at the left side and the right side of the electric cylinder, the fine optical axis and the flanged linear bearing are matched, the fine optical axis and the flanged linear bearing are alternately penetrated around the pressure maintaining fixing plates, the lower ends of the buffer fixing plates are respectively connected with the upper detection connecting plates, and the upper ends of the buffer fixing plates are respectively connected with the buffer fixing plates.
Preferably, the pressure maintaining device further comprises a pressure maintaining connecting plate, the pressure maintaining connecting plate is connected to the lower end of the lower detection connecting plate, the pressing block is connected to the lower end of the pressure maintaining connecting plate, the electric cylinder rod is connected with the upper detection connecting plate through a floating joint, and the upper connecting plate and the lower connecting plate are driven to drive the pressure maintaining connecting plate and the pressing block to move so as to compress or keep away from products to be maintained on the jig.
Preferably, the detection device further comprises detection linear bearings and pressure sensor connecting plates, the detection linear bearings comprise 4 detection connecting plates and are distributed between the upper detection connecting plates and the lower detection connecting plates at intervals, linear motion stability of the upper detection connecting plates and the lower detection connecting plates is guaranteed, the pressure sensor connecting plates are connected to the lower ends of the upper detection connecting plates, and the pressure sensors are connected to the lower ends of the pressure sensor connecting plates.
Preferably, the jacking device further comprises a jacking connecting plate and a jig mounting seat, wherein the jacking connecting plate is connected to the tail end of an oil cylinder rod of the jacking oil cylinder, the jig mounting seat is mounted at the upper end of the jacking connecting plate, and the jig is mounted on the jig mounting seat.
Preferably, the lower extreme of briquetting is equipped with the locating pin, be equipped with on the tool with locating pin assorted pinhole, locating pin and pinhole mutually support, realize the location of waiting the pressurize product on briquetting and the tool.
Preferably, 4 jigs are installed on the jig mounting seat, and the pressing block of the pressure maintaining device is matched with the jigs and also comprises 4 jigs.
Preferably, an instrument mounting plate is arranged at the upper end of the right side of the pressure maintaining fixed plate, and the instrument is mounted on the pressure maintaining fixed plate through the instrument mounting plate.
Preferably, the device further comprises two jacking blocks, wherein the jacking blocks are respectively positioned at the outer sides of the two pressure maintaining fixed plates and used for adjusting and fixing the positions of the pressure maintaining fixed plates.
The beneficial effects of the utility model are as follows:
the device comprises a pressure maintaining device, a buffer device, a jacking device and a detection device, wherein the buffer device and the detection device are arranged on the pressure maintaining device, the jacking device is arranged below the pressure maintaining device, the pressure maintaining device comprises a pressure maintaining bottom plate, a stand column, a pressure maintaining fixed plate, an electric cylinder and a pressing block, the electric cylinder is vertically arranged in the middle of the pressure maintaining fixed plate, an electric cylinder rod extends downwards, the pressing block is connected with the lower end of the electric cylinder rod, the jacking device comprises a jacking bottom plate, a jacking cylinder and a jig, the jacking bottom plate is arranged on a working table surface between the two pressure maintaining bottom plates, the jacking cylinder is arranged at the upper end of the jacking bottom plate, the jig is arranged at the tail end of a cylinder rod of the jacking cylinder, a product to be maintained is arranged in the jig, can ascend or descend relative to the working table surface under the transmission effect of the cylinder rod, can be tightly pressed by the pressing block or be far away from the pressing block, the device such as an external manipulator can be matched, the pressure maintaining product to be rapidly carried out, the power source can be provided by the electric cylinder, the pressure maintaining can be realized through the adjustment of the electric cylinder, and the processing efficiency is high.
Secondly, the lower end of the pressing block is provided with the locating pin, the jig is provided with the pin hole matched with the locating pin, the locating pin and the pin hole are mutually matched, the positioning of the pressing block and the product to be pressurized on the jig is realized, the subsequent pressure maintaining is ensured to be carried out smoothly, and the working efficiency is high.
And thirdly, 4 jigs are arranged on the jig mounting seat, and the pressing blocks of the pressure maintaining device are matched with the jigs, and also comprise 4 jigs, so that 4 products can be maintained in pressure at one time, and the processing efficiency is greatly improved.
The utility model is provided with the detection device, the detection device comprises an upper detection connecting plate, a pressure sensor, an instrument and a lower detection connecting plate, the upper detection connecting plate is connected to the tail end of the electric cylinder rod, the lower detection connecting plate is positioned at the lower end of the upper detection connecting plate, the instrument is electrically connected with the pressure sensor, the pressure sensor is arranged between the upper detection connecting plate and the lower detection connecting plate and used for detecting the pressure between the upper detection connecting plate and the lower detection connecting plate, the pressure data is displayed on the instrument, the pressure is fed back by the pressure sensor through the instrument, the pressure maintaining requirement of most products is met, the application range is wide, the pressure maintaining time and the pressure maintaining pressure are accurately adjusted, and the film pasting machine can improve the film pasting efficiency and ensure the laminating effect of films and products.
Fifthly, the detecting device further comprises 4 detecting linear bearings and a pressure sensor connecting plate, wherein the detecting linear bearings are distributed between the upper detecting connecting plate and the lower detecting connecting plate at intervals, the stability of linear motion of the upper detecting connecting plate and the lower detecting connecting plate is guaranteed, the buffering device is further arranged, the buffering device comprises four buffering fixing plates, a fine optical axis and a flanged linear bearing, the flanged linear bearing comprises four buffering fixing plates, the buffering fixing plates are distributed in the pressure maintaining fixing plates around the electric cylinder at intervals, the two buffering fixing plates are respectively located on the left side and the right side of the electric cylinder, the fine optical axis and the flanged linear bearing are matched, penetrate through the periphery of the pressure maintaining fixing plates at intervals, the stability of a product in the pressure maintaining process is further guaranteed, and the processing efficiency is high and the processing effect is good.
The instrument mounting plate is arranged at the upper end of the right side of the pressure maintaining fixing plate, the instrument is mounted on the pressure maintaining fixing plate through the instrument mounting plate, data can be conveniently and immediately checked, operation and control are convenient, the pressure maintaining fixing plate further comprises two jacking blocks, the two jacking blocks are respectively positioned on the outer sides of the two pressure maintaining fixing plates, and position adjustment and fixing of the pressure maintaining fixing plates are convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of a first angle according to the present utility model.
Fig. 2 is a schematic view of the overall structure of the second angle of the present utility model.
FIG. 3 is a schematic view of the third angular overall structure of the present utility model.
Fig. 4 is an enlarged schematic view of the portion a in fig. 3.
In the figure: 1. a pressure maintaining bottom plate; 2. a column; 3. a pressure maintaining fixed plate; 4. an electric cylinder; 5. briquetting; 6. a connecting plate is detected; 7. a pressure sensor; 8. a meter; 9. a lower detection connecting plate; 10. a buffer fixing plate; 11. a fine optical axis; 12. a flanged linear bearing; 13. lifting the bottom plate; 14. jacking the oil cylinder; 15. a jig; 16. pressure maintaining connecting plates; 17. detecting a linear bearing; 18. a pressure sensor connection plate; 19. jacking the connecting plate; 20. a jig mounting seat; 21. a positioning pin; 22. a pin hole; 23. an instrument mounting plate; 24. and (5) tightly pushing the block.
Detailed Description
The structural and operational principles of the present utility model will be described in further detail below with reference to the accompanying drawings.
The embodiments described by referring to the drawings are exemplary and intended for purposes of illustrating the present application and are not to be construed as limiting the present application. In the description of the present application, it should be understood that the terms "lower," "upper," "left," "right," "front," "rear," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
As shown in fig. 1 to 4, the utility model relates to a pressure-adjustable pressure maintaining and pressure detecting mechanism, which comprises a pressure maintaining device, a buffer device, a jacking device and a detecting device, wherein the buffer device and the detecting device are arranged on the pressure maintaining device, and the jacking device is arranged below the pressure maintaining device, wherein:
the pressure maintaining device comprises two pressure maintaining bottom plates 1, upright posts 2, pressure maintaining fixed plates 3, electric cylinders 4 and pressing blocks 5, wherein the two pressure maintaining bottom plates 1 are arranged on a workbench surface (not shown in the figure) in a left-right distribution manner, the pressure maintaining fixed plates 3 are transversely arranged above the pressure maintaining bottom plates 1, the four upright posts 2 are vertically arranged between the two pressure maintaining bottom plates 1 and the pressure maintaining fixed plates 3 in a two-by-two distribution manner, the electric cylinders 4 are vertically arranged in the middle of the pressure maintaining fixed plates 3, electric cylinder rods downwards extend, and the pressing blocks 5 are connected to the lower ends of the electric cylinder rods;
the detection device comprises an upper detection connecting plate 6, a pressure sensor 7, a meter 8 and a lower detection connecting plate 9, wherein the upper detection connecting plate 6 is connected to the tail end of an electric cylinder rod, the lower detection connecting plate 9 is positioned at the lower end of the upper detection connecting plate 6, the meter 8 is electrically connected with the pressure sensor 7, and the pressure sensor 7 is arranged between the upper detection connecting plate 6 and the lower detection connecting plate 9 and is used for detecting the pressure between the upper detection connecting plate 6 and the lower detection connecting plate 9 and displaying pressure data on the meter 8;
the buffer device comprises four buffer fixing plates 10, a finish optical shaft 11 and flanged linear bearings 12, wherein the four flanged linear bearings 12 are distributed in the pressure maintaining fixing plates 3 around the electric cylinder 4 at intervals, the two buffer fixing plates 10 are respectively positioned at the left side and the right side of the electric cylinder 4, the finish optical shaft 11 and the flanged linear bearings 12 are matched, penetrate through the periphery of the pressure maintaining fixing plates 3 at intervals, the lower ends of the buffer fixing plates are respectively connected with the upper detection connecting plates 6, and the upper ends of the buffer fixing plates 10 are respectively connected with the buffer fixing plates;
the jacking device comprises a jacking bottom plate 13, a jacking oil cylinder 14 and a jig 15, wherein the jacking bottom plate 13 is arranged on a working table surface between two pressure maintaining bottom plates 1, the jacking oil cylinder 14 is arranged at the upper end of the jacking bottom plate 13, the jig 15 is arranged at the tail end of an oil cylinder rod of the jacking oil cylinder 14, and a product to be pressure maintaining is placed in the jig 15 and can ascend or descend relative to the working table surface under the transmission action of the oil cylinder rod so as to be close to the pressing block 5 or far away from the pressing block 5.
As shown in fig. 1 to 4, the pressure maintaining device further includes a pressure maintaining connection plate 16, the pressure maintaining connection plate 16 is connected to the lower end of the lower detection connection plate 9, the pressing block 5 is connected to the lower end of the pressure maintaining connection plate 16, the electric cylinder rod is connected to the upper detection connection plate 6 through a floating joint, and the upper connection plate and the lower connection plate are driven to drive the pressure maintaining connection plate 16 and the pressing block 5 to move so as to compress or keep away from the product to be maintained on the jig 15.
As shown in fig. 1 to 4, the detecting device further includes detecting linear bearings 17 and pressure sensor connecting plates 18, the detecting linear bearings 17 include 4 detecting linear bearings, are distributed between the upper detecting connecting plates 6 and the lower detecting connecting plates 9 at intervals, so as to ensure the stability of the linear motion of the upper detecting connecting plates 6 and the lower detecting connecting plates 9, the pressure sensor connecting plates 18 are connected to the lower ends of the upper detecting connecting plates 6, and the pressure sensors 7 are connected to the lower ends of the pressure sensor connecting plates 18.
As shown in fig. 1 to 4, the jacking device further includes a jacking connection plate 19 and a jig mounting seat 20, the jacking connection plate 19 is connected to the tail end of the cylinder rod of the jacking cylinder 14, the jig mounting seat 20 is mounted at the upper end of the jacking connection plate 19, and the jig 15 is mounted on the jig mounting seat 20.
As shown in fig. 1 to 4, a positioning pin 21 is arranged at the lower end of the pressing block 5, a pin hole 22 matched with the positioning pin 21 is arranged on the jig 15, and the positioning pin 21 and the pin hole 22 are mutually matched to realize positioning of a product to be pressurized on the pressing block 5 and the jig 15.
As shown in fig. 1, 4 jigs 15 are installed on the jig mounting seat 20, and the pressing blocks 5 of the pressure maintaining device are matched with the jigs 15 and also include 4 jigs.
As shown in fig. 1 to 3, an instrument mounting plate 23 is disposed at the upper right end of the pressure maintaining fixing plate 3, and the instrument 8 is mounted on the pressure maintaining fixing plate 3 through the instrument mounting plate 23.
As shown in fig. 1 to 3, the device further comprises two tightening blocks 24, wherein the two tightening blocks 24 are respectively located at the outer sides of the two pressure maintaining fixing plates 3 and are used for adjusting and fixing the positions of the pressure maintaining fixing plates 3.
In the foregoing, only the preferred embodiment of the present utility model is described, and any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical solutions of the present utility model fall within the scope of the technical solutions of the present utility model.
Claims (9)
1. Pressure-adjustable pressure-maintaining and pressure detecting mechanism is characterized in that: including pressure maintaining device, jacking device, buffer and detection device install on pressure maintaining device, jacking device installs in pressure maintaining device's below, wherein:
the pressure maintaining device comprises two pressure maintaining bottom plates, upright posts, pressure maintaining fixed plates, electric cylinders and pressing blocks, wherein the two pressure maintaining bottom plates are horizontally arranged on a workbench surface, the four pressure maintaining fixed plates are transversely arranged above the pressure maintaining bottom plates, the four upright posts are vertically arranged between the two pressure maintaining bottom plates and the pressure maintaining fixed plates in a two-by-two mode, the electric cylinders are vertically arranged in the middle parts of the pressure maintaining fixed plates, electric cylinder rods extend downwards, and the pressing blocks are connected to the lower ends of the electric cylinder rods;
the detection device comprises an upper detection connecting plate, a pressure sensor, an instrument and a lower detection connecting plate, wherein the upper detection connecting plate is connected to the tail end of the electric cylinder rod, the lower detection connecting plate is positioned at the lower end of the upper detection connecting plate, the instrument is electrically connected with the pressure sensor, and the pressure sensor is arranged between the upper detection connecting plate and the lower detection connecting plate and is used for detecting the pressure between the upper detection connecting plate and the lower detection connecting plate and displaying pressure data on the instrument;
the jacking device comprises a jacking bottom plate, a jacking oil cylinder and a jig, wherein the jacking bottom plate is arranged on a working table surface between two pressure maintaining bottom plates, the jacking oil cylinder is arranged at the upper end of the jacking bottom plate, the jig is arranged at the tail end of an oil cylinder rod of the jacking oil cylinder, and a product to be subjected to pressure maintaining is arranged in the jig and can ascend or descend relative to the working table surface under the transmission action of the oil cylinder rod so as to be attached to or far away from a pressing block.
2. The pressure-adjustable dwell and pressure detection mechanism of claim 1 wherein: the buffer device comprises four buffer fixing plates, a fine optical axis and flanged linear bearings, wherein the four flanged linear bearings are distributed in the pressure maintaining fixing plates around the electric cylinder at intervals, the two buffer fixing plates are respectively positioned at the left side and the right side of the electric cylinder, the fine optical axis and the flanged linear bearings are matched, the fine optical axis and the flanged linear bearings are alternately arranged around the pressure maintaining fixing plates in a penetrating mode, the lower ends of the fine optical axis and the flanged linear bearings are respectively connected with the upper detection connecting plates, and the upper ends of the fine optical axis and the flanged linear bearings are respectively connected with the buffer fixing plates.
3. The pressure-adjustable dwell and pressure detection mechanism of claim 2, wherein: the pressure maintaining device further comprises a pressure maintaining connecting plate, the pressure maintaining connecting plate is connected to the lower end of the lower detection connecting plate, the pressing block is connected to the lower end of the pressure maintaining connecting plate, the electric cylinder rod is connected with the upper detection connecting plate through a floating joint, and the upper connecting plate and the lower connecting plate are driven to drive the pressure maintaining connecting plate and the pressing block to move so as to compress or keep away from products to be maintained on the jig.
4. The pressure-adjustable dwell and pressure detection mechanism of claim 3 wherein: the detection device further comprises detection linear bearings and pressure sensor connecting plates, wherein the detection linear bearings comprise 4 detection connecting plates and are distributed between the upper detection connecting plates and the lower detection connecting plates at intervals, the linear motion stability of the upper detection connecting plates and the lower detection connecting plates is guaranteed, the pressure sensor connecting plates are connected to the lower ends of the upper detection connecting plates, and the pressure sensors are connected to the lower ends of the pressure sensor connecting plates.
5. The pressure-adjustable dwell and pressure detection mechanism of claim 4, wherein: the jacking device further comprises a jacking connecting plate and a jig mounting seat, wherein the jacking connecting plate is connected to the tail end of an oil cylinder rod of the jacking oil cylinder, the jig mounting seat is mounted at the upper end of the jacking connecting plate, and the jig is mounted on the jig mounting seat.
6. The pressure-adjustable dwell and pressure detection mechanism of claim 5, wherein: the lower extreme of briquetting is equipped with the locating pin, be equipped with on the tool with locating pin assorted pinhole, locating pin and pinhole mutually support, realize the location of waiting the pressurize product on briquetting and the tool.
7. The pressure-adjustable dwell and pressure detection mechanism of claim 6, wherein: the jig mounting seat is provided with 4 jigs, and the pressing blocks of the pressure maintaining device are matched with the jigs and also comprise 4 jigs.
8. The pressure-adjustable dwell and pressure detection mechanism of claim 7, wherein: the right side upper end of pressurize fixed plate is equipped with the instrument mounting panel, the instrument passes through the instrument mounting panel and installs on the pressurize fixed plate.
9. The pressure-adjustable pressure maintaining and detecting mechanism according to any one of claims 1 to 8, characterized in that: the device further comprises a jacking block, wherein the jacking block comprises two jacking blocks, and the jacking blocks are respectively positioned at the outer sides of the two pressure maintaining fixing plates and used for adjusting and fixing the positions of the pressure maintaining fixing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583030.2U CN219055334U (en) | 2022-09-29 | 2022-09-29 | Pressure-adjustable pressure-maintaining and pressure-detecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583030.2U CN219055334U (en) | 2022-09-29 | 2022-09-29 | Pressure-adjustable pressure-maintaining and pressure-detecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219055334U true CN219055334U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222583030.2U Active CN219055334U (en) | 2022-09-29 | 2022-09-29 | Pressure-adjustable pressure-maintaining and pressure-detecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219055334U (en) |
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- 2022-09-29 CN CN202222583030.2U patent/CN219055334U/en active Active
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