CN219038276U

CN219038276U - Fixing device with reverse pushing function for detecting tightness of pressure regulating valve

Info

Publication number: CN219038276U
Application number: CN202221131789.0U
Authority: CN
Inventors: 储杰
Original assignee: Wuxi Weifu Schmitter Powertrain System Components Co ltd
Current assignee: Wuxi Weifu Schmitter Powertrain System Components Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-05-16
Anticipated expiration: 2032-05-12

Abstract

The utility model provides a fixing device with a thrust-reversing function for detecting the tightness of a pressure regulating valve, which relates to the technical field of tightness detection and comprises a fixing tool and a fixing groove, wherein the fixing groove is arranged on the fixing tool and used for installing the tail part of the pressure regulating valve; the pressure regulating valve O-shaped ring is far away from two sides of the groove in the tightness detection through the reverse thrust structure, so that whether penetrating residual scraps exist in the groove or not can be effectively identified, the O-shaped ring and any side contact side are prevented from forming a new sealing surface, the influence on a detection result is avoided, the tightness detection accuracy is improved, and the product quality is guaranteed.

Description

Fixing device with reverse pushing function for detecting tightness of pressure regulating valve

Technical Field

The utility model relates to the technical field of tightness detection, in particular to a fixing device with a reverse pushing function for tightness detection of a pressure regulating valve.

Background

The pressure regulating valve is also called a self-operated balance valve, a flow control valve, a flow controller, a dynamic balance valve and a flow balance valve, is a visual and simple flow regulating control device, and is commonly used for regulating the pressure of fluid in a hydraulic system, so that the tightness detection of a valve body structure is particularly important, the fixing device for detection generally comprises a fixing tool and an inserting tool, an annular groove for installing an O-shaped ring is arranged on the pressure regulating valve to be detected, and compressed gas is introduced for tightness detection after the pressure regulating valve is inserted into the tool.

In the actual use process, if iron filings exist in the pressure regulating valve groove, the sealing performance of the O-shaped ring can be invalid, however, when the pressure regulating valve is detected, namely when the pressure regulating valve is connected with an insertion tool, the O-shaped ring can deviate to one side of the pressure regulating valve O-shaped ring groove to form a new sealing surface with the groove wall on any side due to the friction force effect of the insertion process, at the moment, the pressure regulating valve after detection is good in sealing performance, the unqualified pressure regulating valve is not leaked in the test, staff misjudges as qualified pieces, the product qualification rate is greatly influenced, and therefore, the pressure regulating valve sealing performance detection fixing device with a reverse pushing function is provided.

Disclosure of Invention

The utility model provides a fixing device with a reverse thrust function for detecting the tightness of a pressure regulating valve, which solves the problems that after an O-shaped ring is inserted into a tool, a new sealing surface is easily formed on one side, so that the tightness cannot be accurately detected and whether the pressure regulating valve is a qualified part or not is judged.

The utility model provides a pressure regulating valve leakproofness detects and uses fixing device with thrust reverser, includes fixed frock and last fixed slot that is used for the installation of pressure regulating valve afterbody, inserts the frock and last insertion groove that is used for pressure regulating valve head to install of frock, the airtight laminating of O type circle on the circumference inner wall of insertion groove and the pressure regulating valve, fixed frock both sides are equipped with the thrust reverser who is used for thrust reverser to insert the frock, and its thrust reverser distance is less than the difference of pressure regulating valve groove width and O type circle thickness.

Preferably, the reverse pushing structure comprises two reverse pushing rods, a driving mechanism is arranged at the front part of the reverse pushing structure, and guide holes connected with the reverse pushing rods are symmetrically formed in the fixed fixture.

Preferably, the driving mechanism comprises an adjusting screw and a first motor, one end of the reverse push rod is connected with the adjusting screw in a threaded manner, and the adjusting screw is arranged in the guide hole.

Preferably, the front parts of the adjusting screws are fixedly connected with driving wheels, the front parts of the adjusting screws on any side of the adjusting screws extend to be connected with the first motor, and the two driving wheels are connected through a driving belt.

Preferably, one end of the adjusting screw rod penetrates through the guide hole, and the adjusting screw rod is movably mounted in the fixing tool through a bearing at the position in front of the guide hole.

Preferably, the front part of the fixing tool is provided with a reverse pushing groove, and the reverse pushing rod extends to the inside of the reverse pushing groove through the guide hole.

Preferably, the driving mechanism comprises a bidirectional screw rod, a reverse pushing block and a second motor, wherein the bidirectional screw rod is arranged in the reverse pushing groove, the reverse pushing block is symmetrically arranged on the bidirectional screw rod and props against the front end of the reverse pushing rod, and the second motor is arranged on the outer wall of the fixed tool and is connected with the bidirectional screw rod.

Preferably, the rear side wall of the thrust reverser is provided with an inclined plane which is low from the middle to two sides.

Preferably, an L-shaped bracket for mounting the first motor is connected to the front end wall of the fixing tool.

The beneficial effects of the utility model are as follows: the pressure regulating valve O-shaped ring is far away from two sides of the groove in the tightness detection through the reverse thrust structure, so that whether penetrating residual scraps exist in the groove or not can be effectively identified, the O-shaped ring and any side contact side are prevented from forming a new sealing surface, the influence on a detection result is avoided, the tightness detection accuracy is improved, and the product quality is guaranteed.

Drawings

FIG. 1 is a schematic top view of embodiment 1 of the present utility model;

fig. 2 is a schematic top view of embodiment 2 of the present utility model.

In the figure: 1. fixing the tool; 2. inserting a tool; 3. a bearing; 4. a reverse push rod; 5. a guide hole; 6. adjusting a screw; 7. a first motor; 8. a driving wheel; 9. a transmission belt; 10. an L-shaped bracket; 11. a bidirectional screw; 12. a reverse pushing block; 13. a second motor; 101. a fixing groove; 102. a reverse thrust groove; 201. and inserting into the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-2, the fixing device for detecting tightness of the pressure regulating valve with a back-pushing function comprises a fixing tool 1 and a fixing groove 101 arranged on the fixing tool and used for mounting the tail part of the pressure regulating valve, an inserting tool 2 and an inserting groove 201 arranged on the inserting tool and used for mounting the head part of the pressure regulating valve, the circumferential inner wall of the inserting groove 201 is in airtight fit with an O-shaped ring on the pressure regulating valve, back-pushing structures used for pushing the inserting tool 2 upwards are arranged on two sides of the fixing tool 1, and the back-pushing distance of the back-pushing structures is smaller than the difference between the groove width of the pressure regulating valve and the thickness of the O-shaped ring.

Specifically, include two thrust links 4 in the thrust reverser structure, the bottom of thrust reverser structure is connected with and is used for actuating mechanism, is equipped with the guiding hole 5 that links to each other with thrust links 4 on the fixed frock 1 symmetry.

Example 1: as shown in fig. 1, the driving mechanism comprises an adjusting screw rod 6 and a first motor 7, the bottom of the reverse pushing rod 4 is in threaded connection with the adjusting screw rod 6, and the adjusting screw rod 6 is vertically arranged in the guide hole 5.

In this embodiment, the bottom ends of the adjusting screws 6 are fixedly connected with driving wheels 8, wherein the bottom end of any side of the adjusting screw 6 extends downwards to be connected with the first motor 7, in this embodiment, only 1 first motor 7 is arranged, threads of the adjusting screws 6 on two sides are identical in screwing direction, and the two driving wheels 8 are connected through a driving belt 9.

In this embodiment, the bottom end of the adjusting screw 6 penetrates the guiding hole 5 downwards, the adjusting screw 6 is movably mounted inside the fixing tool 1 through the bearing 3 at the position below the guiding hole 5, and the thread on the adjusting screw 6 avoids the connection position of the bearing 3 and the adjusting screw 6.

The working principle of the above embodiment 1 is: the top of air-vent valve is installed and is awaited measuring O type circle, the head and the tail of valve are connected with insert frock 2 and fixed frock 1 respectively, the air-vent valve afterbody is installed in fixed slot 101 promptly, the air-vent valve head is installed in insert groove 201, wherein, insert the airtight laminating of O type circle on the groove 201's the circumference inner wall and the air-vent valve, at this moment, first motor 7 drives one side adjusting screw 6 rotatory, drive opposite side adjusting screw 6 rotation through drive belt 9, make reverse thrust rod 4 remove a section distance to the direction of inserting frock 2 under little thread lifting force, and this section distance is less than the difference of air-vent valve groove width and O type circle thickness, the O type circle position of valve lets in compressed gas and carries out the leakproofness and detects, whether the inspection still has unqualified piece.

Example 2: as shown in fig. 2, the bottom of the fixing tool 1 is provided with a reverse thrust groove 102, and the bottom end of the reverse thrust rod 4 extends downward to pass through the guide hole 5 to the inside of the reverse thrust groove 102.

In this embodiment, the driving mechanism includes a bidirectional screw 11, a reverse thrust block 12 and a second motor 13, the bidirectional screw 11 is installed in the reverse thrust groove 102, the reverse thrust block 12 is symmetrically installed on the bidirectional screw 11 and abuts against the bottom end of the reverse thrust rod 4, and the second motor 13 is installed on the outer wall of the fixed tool 1 and is connected with the bidirectional screw 11.

In this embodiment, the top end of the thrust reverser 12 is an inclined plane with a lower middle to two sides, and the bottom wall of the fixing tool 1 is connected with an L-shaped bracket 10 for mounting the first motor 7.

It should be noted that, the driving structure is installed in the fixed tooling 1, that is, the bottom of the fixed tooling 1 is provided with a reverse thrust groove 102 for installing the driving structure, and the driving structure comprises a bidirectional screw 11 fixed in the reverse thrust groove 102, a reverse thrust block 12 and a second motor 13, the reverse thrust block 12 is symmetrically installed on the bidirectional screw 11, when the second motor 13 drives the bidirectional screw 11, the reverse thrust blocks 12 on two sides can be synchronously moved closer or farther away, and when the reverse thrust block 12 is synchronously farther away, the reverse thrust rod 4 can be pushed by using the inclined plane.

The working principle of the above embodiment 2 is: the pressure regulating valve provided with the O-shaped ring is respectively connected with the fixed tool 1 and the inserting tool 2, so that the circumferential inner wall of the inserting groove 201 is closely attached to the O-shaped ring on the pressure regulating valve, the second motor 13 drives the bidirectional screw rod 11 to rotate, the bidirectional screw rod 11 drives the reverse pushing block 12 to be far away from each other, the inclined surface of the reverse pushing block 12 is propped against the reverse pushing rod 4 and then rises a small distance along the inclined surface of the reverse pushing block 12, the distance of the inserting tool 2 is realized, the distance is controlled to be smaller than the difference between the groove width of the pressure regulating valve and the thickness of the O-shaped ring, compressed gas is introduced into the O-shaped ring part of the pressure regulating valve for tightness detection, and whether unqualified parts still exist is checked.

The components in the utility model are all general standard components or components known to the person skilled in the art, and the structures and principles of the components are all known to the person skilled in the art through technical manuals or through routine experimental methods.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a pressure regulating valve leakproofness detects and uses fixing device with thrust reverser, includes fixed frock (1) and last fixed slot (101) that are used for the installation of pressure regulating valve afterbody, inserts frock (2) and last insertion groove (201) that are used for the installation of pressure regulating valve head, the airtight laminating of O type circle on the circumference inner wall of insertion groove (201) and the pressure regulating valve, its characterized in that, fixed frock (1) both sides are equipped with the thrust reverser structure that is used for thrust to insert frock (2), and its thrust reverser distance is less than the difference of pressure regulating valve groove width and O type circle thickness.

2. The fixing device for detecting the tightness of the pressure regulating valve with the back-pushing function according to claim 1, wherein the back-pushing structure comprises two back-pushing rods (4), a driving mechanism is arranged at the front part of the back-pushing structure, and guide holes (5) connected with the back-pushing rods (4) are symmetrically arranged on the fixing tool (1).

3. The fixing device for detecting tightness of a pressure regulating valve with a back-pushing function according to claim 2, wherein the driving mechanism comprises an adjusting screw (6) and a first motor (7), one end of the back-pushing rod (4) is connected with the adjusting screw (6) in a threaded manner, and the adjusting screw (6) is arranged in the guide hole (5).

4. The fixing device for detecting tightness of a pressure regulating valve with a back-pushing function according to claim 3, wherein the front parts of the adjusting screw rods (6) are fixedly connected with driving wheels (8), the front parts of the adjusting screw rods (6) on any side of the fixing device extend to be connected with the first motor (7), and the two driving wheels (8) are connected through a driving belt (9).

5. The fixing device for detecting tightness of a pressure regulating valve with a back-pushing function according to claim 4, wherein one end of the adjusting screw (6) penetrates through the guide hole (5), and the adjusting screw (6) is movably mounted in the fixing tool (1) through the bearing (3) at a position in front of the guide hole (5).

6. The fixing device for detecting the tightness of the pressure regulating valve with the back-pushing function according to claim 2, wherein the front part of the fixing tool (1) is provided with a back-pushing groove (102), and the back-pushing rod (4) extends to the inside of the back-pushing groove (102) through the guide hole (5).

7. The fixing device for detecting tightness of a pressure regulating valve with a back-pushing function according to claim 6, wherein the driving mechanism comprises a bidirectional screw rod (11), a back-pushing block (12) and a second motor (13), the bidirectional screw rod (11) is installed in a back-pushing groove (102), the back-pushing block (12) is symmetrically installed on the bidirectional screw rod (11) and abuts against the front end of the back-pushing rod (4), and the second motor (13) is installed on the outer wall of the fixing tool (1) and is connected with the bidirectional screw rod (11).

8. The fixing device for detecting tightness of a pressure regulating valve with a back-pushing function according to claim 7, wherein a rear side wall of the back-pushing block (12) is formed as a slope that is low from the middle to both sides.

9. The fixing device for detecting tightness of a pressure regulating valve with a back-thrust function according to claim 3, 4 or 5, characterized in that an L-shaped bracket (10) for mounting the first motor (7) is connected to the front end wall of the fixing tool (1).