CN219987322U

CN219987322U - Clamping and checking device for diaphragm pressure gauge

Info

Publication number: CN219987322U
Application number: CN202320770867.XU
Authority: CN
Inventors: 王生伟; 邹士尧; 陈赟志
Original assignee: Shenyang Friend Instrument Manufacturing Co ltd
Current assignee: Shenyang Friend Instrument Manufacturing Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-11-10
Anticipated expiration: 2033-04-10

Abstract

The utility model provides a clamping and checking device for a diaphragm pressure gauge, which enables a clamping disc to be attached to a piece to be tested through an adjusting structure in a manual adjusting device, and is more convenient to operate. The adjusting device comprises a screw and a nut, and the clamping disc is manually adjusted, so that the screw drives the clamping disc to ascend and fit with the piece to be measured, and the air consumption for clamping is greatly reduced. The limiting structure effectively limits the movement of the piston and the spring, so that the piston rises to compress the spring when air is taken in, and the spring cannot spring open to cause the piston to descend. The problem that the clamping frame and the screw rod are damaged due to friction is effectively solved by the rod sleeve, and the sealing performance of the inner part of the cylinder sleeve can be improved. The buffer layer solves the problem of damage caused by friction with the clamping frame when the piece to be tested is clamped. The clamping disc is provided with a plurality of sealing rings with different sizes, so that the clamping disc can be suitable for a plurality of pieces to be tested with different calibers.

Description

Clamping and checking device for diaphragm pressure gauge

Technical Field

The utility model relates to the technical field of pressure gauge inspection devices, in particular to a clamping inspection device for a diaphragm pressure gauge.

Background

The clamping and checking device for the pressure gauge in the prior art has the disadvantages of large volume and inconvenient operation. In addition, a large distance is usually reserved between the clamping disc and the thinner piece to be tested, air is directly introduced through the air cylinder during clamping in the prior art, and the clamping disc is propped to a position for locking the piece to be tested, so that the air consumption caused by waste of a lot of air is large. When the thickness of the workpiece to be tested is small, the clamping disc can be damaged due to the instantaneous rising of the clamping disc.

Disclosure of Invention

The utility model provides a clamping and checking device for a diaphragm pressure gauge, which solves the problem that in the prior art, the air consumption of a clamping device is large in the clamping process.

The technical scheme is as follows:

in order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a clamping and checking device for a diaphragm pressure gauge comprises a device bracket, a lifting structure, a clamping disc, a base and a checking air pipe; the lifting structure is arranged in the device bracket; the bottom of the device bracket is connected with the base; the clamping disc is connected with the lifting structure; the inspection air pipe penetrates through the base and the lifting structure; the lifting structure comprises an adjusting structure.

Preferably, the device holder includes a clamping frame and a cylinder liner connected to each other.

Preferably, the base and the clamping frame are provided with buffer holes and working ports.

Preferably, the lifting structure further comprises a piston, a limiting structure and a spring; the piston and the limiting structure are arranged in the cylinder sleeve; the top of the piston is connected with the limiting structure; the bottom of the adjusting structure is connected with the limiting structure; the spring is sleeved on the outer side of the adjusting structure, and the bottom of the spring is propped against the limiting structure.

Preferably, the adjusting structure comprises a screw and a nut; the bottom of the nut is connected with the limiting structure; the top end of the screw rod penetrates through the bottom of the clamping frame to be connected with the clamping disc, and the nut is sleeved outside the screw rod.

Preferably, the clamping frame is provided with a rod sleeve at the joint of the clamping frame and the screw rod.

Preferably, a placement opening is formed in the top of the clamping frame.

Preferably, a buffer layer is arranged on the inner side of the top surface of the clamping frame.

Preferably, sealing rings with a plurality of sizes are arranged at the top of the clamping disc.

The beneficial effects are that:

according to the clamping and checking device for the diaphragm pressure gauge, provided by the utility model, the clamping disc is attached to the piece to be tested through the adjusting structure in the manual adjusting device, so that the operation is more convenient. The adjusting device comprises a screw and a nut, and the screw is driven to ascend by manually rotating the clamping disc, so that the clamping disc is attached to the piece to be tested, and the air consumption for clamping is greatly reduced. The limiting structure effectively limits the movement of the piston and the spring, so that the piston rises to compress the spring when air is taken in, and the spring cannot spring open to cause the piston to descend. The problem that the clamping frame and the screw rod are damaged due to friction is effectively solved by the rod sleeve, and the sealing performance of the inner part of the cylinder sleeve can be improved. The buffer layer solves the problem of damage caused by friction with the clamping frame when the piece to be tested is clamped. The clamping disc is provided with a plurality of sealing rings with different sizes, so that the clamping disc can be suitable for a plurality of pieces to be tested with different calibers.

Drawings

FIG. 1 is a front cross-sectional view of a diaphragm pressure gauge clamping inspection device of the present utility model;

FIG. 2 is a top view of a clamping frame in a clamping inspection device for a diaphragm pressure gauge according to the present utility model;

fig. 3 is a top view of a clamping disk in a clamping inspection device for a diaphragm pressure gauge according to the present utility model.

[ reference numerals description ]

1-device bracket, 11-clamping frame, 111-rod sleeve, 112-placing port, 113-buffer layer, 12-cylinder sleeve,

2-lifting structure, 21-piston, 22-adjusting structure, 221-lead screw, 222-nut, 23-limit structure, 24-spring,

3-clamping disc, 4-base, 5-inspection trachea, 6-buffer memory hole, 7-work mouth.

Detailed Description

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "top", "bottom", and the like, are made to the orientation of fig. 1.

Examples:

the utility model provides a clamping and checking device for a diaphragm pressure gauge, which comprises a device bracket 1, a lifting structure 2, a clamping disc 3, a base 4 and a checking air pipe 5. The lifting structure 2 is arranged in the device bracket 1. The bottom of the device bracket 1 is connected with the base 4. The clamping disc 3 is connected with the lifting structure 2. The inspection air pipe 5 penetrates the base 4 and the lifting structure 2. The lifting structure 2 comprises an adjustment structure 22. The device holder 1 comprises a clamping frame 11 and a cylinder liner 12 connected to each other. The base 4 and the clamping frame 11 are respectively provided with a buffer hole 6 and a working port 7.

Wherein, the outside of the inspection air pipe 5 and the working port 7 are respectively connected with an independent air supply device. The clamping frame 11 is shown in fig. 1, and is in a frame form with a hollow middle. The horizontal length of the internal hollow is far longer than the diameter of the clamping disc 3. Thus, the device is suitable for the inspection work of the to-be-inspected parts with various calibers.

Further, the lifting structure 2 further includes a piston 21, a limiting structure 23, and a spring 24. The piston 21 and the limit structure 23 are both disposed in the cylinder liner 12. The top of the piston 21 is connected with the limiting structure 23. The bottom of the adjusting structure 22 is connected with the limiting structure 23. The outer side of the adjusting structure 22 is sleeved with the spring 24, and the bottom of the spring 24 is propped against the limiting structure 23.

The buffer hole 6 is internally provided with an adjusting screw which is used for adjusting the rising and falling buffer speed of the piston 21. The tightening of the adjustment screw will result in the piston 21 not reaching the end position. The working port 7 is for intake and exhaust. At least one sealing ring is arranged on the outer side surface of the piston 21, so that the tightness is improved, and the waste of clamping gas is reduced. When the lifting structure 2 is lifted, the top end of the spring 24 abuts against the bottom of the clamping frame 11, and the bottom of the spring 24 always abuts against the top of the limiting structure 23. When the lifting structure 2 needs to be lowered, the spring 24 compressed at this time has a restoring force to lower the entire lifting structure 2. Providing a better effect for the lifting and lowering of the lifting structure 2. The limiting structure 23 may be any shape that can limit the spring 24.

Further, the adjusting structure 22 includes a screw 221 and a nut 222. The bottom of the nut 222 is connected with the limiting structure 23. The top end of the screw rod 221 penetrates through the bottom of the clamping frame 11 to be connected with the clamping disc 3, and the screw rod 221 is sleeved with the nut 222.

The screw 221 is screwed with the nut 222. The top end of the screw 221 is connected with the clamping disc 3. The connection of the clamping disk 3 to the threaded spindle 221 is required to be such that the clamping disk 3 cannot be loosened from the threaded spindle 221 when the position of the clamping disk 3 is manually adjusted.

Further, the clamping frame 11 is provided with a rod sleeve 111 at the connection with the screw 221.

The rod sleeve 111 effectively avoids friction of the screw 221 to the clamping frame 11 when the screw 221 ascends and descends, so that threads of the screw 221 are flattened, and the connection effect with the nut 222 is affected. Meanwhile, the connection between the clamping frame 11 and the screw 221 is worn, which also causes the movable space of the screw 221 to become larger, and the lifting structure 2 is inclined, so that the inspection result is inaccurate, air leakage is caused, and the air consumption is increased. Therefore, the present utility model provides the rod cover 111 to solve the above-mentioned problems.

Further, a placement opening 112 is provided at the top of the holding frame 11. As shown in fig. 2, the workpiece to be measured may be placed in the placement opening 112, which is convenient for a worker to detach.

Further, a buffer layer 113 is disposed on the inner side of the top surface of the clamping frame 11. The damage caused by impact friction between the workpiece to be tested and the inner side surface of the clamping frame 11 when the clamping disc 3 ascends to clamp the workpiece to be tested is avoided.

Further, sealing rings with a plurality of sizes are arranged at the top of the clamping disc 3. The device can be suitable for the inspection work of various pieces to be inspected with different diameters. The caliber of the part to be measured is covered from DN20 to DN50. The clamping and sealing can be fast locked. Because the sealing ring is mostly made of soft materials, the sealing ring can also generate a buffer effect to a certain extent.

Working principle:

placing the piece to be tested into the placing opening 112, and manually adjusting the clamping disc 3 to attach the piece to be tested. At this time, the inside of the cylinder liner 12 is supplied with air, and the entire lifting structure 2 is lifted up, thereby clamping the workpiece to be measured. And the air supply device externally connected with the inspection air pipe 5 is used for monitoring the air supply of the piece to be detected.

According to the clamping and checking device for the diaphragm pressure gauge, the clamping disc 3 is attached to the piece to be tested through the adjusting structure 22 in the manual adjusting device, and the operation is more convenient. The adjusting structure 22 includes the screw 221 and the nut 222, and the clamping disc 3 is manually rotated to drive the screw 221 to rise, so that the clamping disc 3 is attached to the workpiece to be tested, and the air consumption for clamping is greatly reduced.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims

1. The clamping and checking device for the diaphragm pressure gauge is characterized by comprising a device bracket (1), a lifting structure (2), a clamping disc (3), a base (4) and a checking air pipe (5); the lifting structure (2) is arranged in the device bracket (1); the bottom of the device bracket (1) is connected with the base (4); the clamping disc (3) is connected with the lifting structure (2); the inspection air pipe (5) penetrates through the base (4) and the lifting structure (2); the lifting structure (2) comprises an adjusting structure (22).

2. The diaphragm pressure gauge clamping inspection device according to claim 1, characterized in that the device holder (1) comprises a clamping frame (11) and a cylinder liner (12) connected to each other.

3. The clamping and checking device for the diaphragm pressure gauge according to claim 2, wherein the base (4) and the clamping frame (11) are respectively provided with a buffer hole (6) and a working port (7).

4. A clamping and checking device for a diaphragm pressure gauge according to claim 3, wherein the lifting structure (2) further comprises a piston (21), a limiting structure (23) and a spring (24); the piston (21) and the limiting structure (23) are arranged in the cylinder sleeve (12); the top of the piston (21) is connected with the limit structure (23); the bottom of the adjusting structure (22) is connected with the limiting structure (23); the outer side of the adjusting structure (22) is sleeved with the spring (24), and the bottom of the spring (24) is propped against the limiting structure (23).

5. The diaphragm pressure gauge clamping inspection device of claim 4, wherein the adjustment structure (22) comprises a lead screw (221) and a nut (222); the bottom of the nut (222) is connected with the limit structure (23); the top end of the screw rod (221) penetrates through the bottom of the clamping frame (11) to be connected with the clamping disc (3), and the screw rod (221) is sleeved with the nut (222).

6. The clamping inspection device for diaphragm pressure gauges according to claim 5, characterized in that the clamping frame (11) is provided with a rod sleeve (111) at the connection with the screw (221).

7. The clamping inspection device for the diaphragm pressure gauge according to claim 2, wherein a placement opening (112) is formed in the top of the clamping frame (11).

8. The clamping inspection device for diaphragm pressure gauges, as set forth in claim 7, characterized in that a buffer layer (113) is provided on the inner side of the top surface of the clamping frame (11).

9. The clamping inspection device for the diaphragm pressure gauge is characterized in that sealing rings with a plurality of sizes are arranged on the top of the clamping disc (3).