A pressure tap with quick reaction opening

Abstract

The utility model discloses a kind of pressure measuring connector of quick reaction opening, it is related to pressure measuring connector technical field, including connector body, fixed interface is fixedly installed in connector body bottom, sealing cover body is threadedly installed on connector body upper end, rotating interface is rotatably installed on sealing cover body, and the rotating interface and fixed interface are all opened with butt joint thread, valve core assembly is installed in connector body, valve core assembly includes spring pad foot fixedly installed in connector body bottom, reset spring is installed on spring pad foot, valve core body is slidably installed in connector body, sealing assembly is installed above valve core body, valve core assembly further includes valve core hole being arranged in the intermediate position of valve core body and wedge-shaped groove being arranged around valve core hole.The pressure measuring connector of quick reaction opening, by the cooperation of valve core assembly and sealing assembly, pressure gauge can conveniently detect the pressure in pipeline quickly.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing connector technology, specifically a pressure testing connector that opens quickly in response. Background Technology

[0002] The pressure test connector is used to test the pressure in a pneumatic system. Its working principle is to use the spring force and the thrust generated by the air pressure to tightly seal the valve core against the valve body. When it is necessary to measure the system pressure, the pressure test connector is connected to the pressure gauge through a pressure test hose. The push rod inside the pressure test hose pushes open the valve core of the pressure test connector, connecting the pneumatic system to the pressure gauge, thus enabling pressure measurement.

[0003] In the prior art, patent announcement number CN222717731U discloses an easy-to-open pressure testing connector, including a valve housing. A screw plug is movably connected to the lower part of the valve housing. A valve core is fixedly connected to the top of the screw plug. Connecting posts are fixedly connected to both sides of the valve core. A connecting plate is fixedly connected to the outer side of the valve housing. A bolt is movably connected to the inside of the connecting plate. The bolt includes a tightening block. A tightening post is fixedly connected to the bottom of the tightening block. Tightening threads are provided on the outer side of the tightening post.

[0004] The aforementioned pressure testing connector uses two bolts to rotate the valve core downwards, connecting the pneumatic system to the pressure gauge for pressure measurement. However, in actual use, the user needs to rotate both bolts synchronously downwards to move the valve core. If the bolts descend at inconsistent speeds, the valve core may jam. This operation method is inconvenient. Therefore, a fast-response opening pressure testing connector is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pressure testing connector that opens quickly to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure testing connector with rapid response opening, comprising a connector body, a fixed interface fixedly installed at the bottom of the connector body, a sealing cover threadedly installed at the upper end of the connector body, a rotating interface rotatably installed on the sealing cover, both the rotating interface and the fixed interface having mating threads, a valve core assembly installed inside the connector body, the valve core assembly including a spring pad fixedly installed at the bottom of the connector body, a return spring installed on the spring pad, a valve core body slidably installed inside the connector body, and a sealing assembly installed above the valve core body.

[0007] Preferably, the valve core assembly further includes a valve core hole located in the middle of the valve core body and a wedge-shaped groove located around the valve core hole. An installation groove is provided on the inner wall of the connector body, and a first sealing ring is installed in the installation groove.

[0008] Preferably, a sealing gasket is provided at the connection between the sealing cover and the connector body, a mounting bracket is fixedly installed at the bottom of the rotating interface, a cross rod is fixedly installed in the middle of the mounting bracket, a rotating sealing ring is provided between the sealing cover and the rotating interface, and a handwheel is fixedly installed on the rotating interface.

[0009] Preferably, the first sealing ring is installed in the connector body through the mounting groove, one end of the return spring is connected to the spring pad, and the other end of the return spring is connected to the valve core body.

[0010] Preferably, the sealing assembly includes a positioning column rotatably mounted inside the connector body, a second sealing ring fixedly mounted on the side wall of the positioning column, a sealing plug fixedly mounted at the middle position of the bottom of the positioning column, a wedge block fixedly mounted around the sealing plug, and a connecting hole provided on the positioning column.

[0011] Preferably, the upper surface of the positioning column is provided with a cross groove, and the cross rod is connected to the positioning column through the cross groove.

[0012] Preferably, the sealing plug at the bottom of the positioning column is aligned vertically with the valve core hole on the valve core body, the wedge-shaped block at the bottom of the positioning column is aligned vertically with the wedge-shaped groove on the valve core body, and a rotating groove is provided in the connector body, through which the positioning column is rotatably installed in the connector body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this application, the connector body is connected to the pipeline under test via a fixed interface, and then the pressure gauge is conveniently installed via a rotating interface. In the non-testing state, the return spring applies an upward thrust to the valve core body, ensuring that the valve core body fits tightly against the positioning column, thereby allowing the sealing plug to effectively seal the valve core hole and prevent gas from escaping from the pipeline under test.

[0015] 2. In this application, rotating the handwheel drives the crossbar on the rotary interface to rotate. The rotation of the crossbar then causes the positioning column to rotate accordingly. Furthermore, the rotation of the positioning column causes the wedge block to rotate as well. During the rotation of the wedge block, it disengages from the wedge groove and applies force to the valve core body, forcing it to move downwards. This downward movement separates the sealing plug from the valve core hole, thereby connecting the pipe to be measured with the pressure gauge. This connection facilitates the pressure gauge's rapid and accurate measurement of the pressure within the pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the connector body of this utility model;

[0018] Figure 3 This is a cross-sectional view of the sealing cover of this utility model;

[0019] Figure 4 This is a schematic diagram of the valve core assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing component of this utility model.

[0021] The following are the labeling elements in the diagram: 1. Connector body; 2. Fixed interface; 3. Butt thread; 4. Sealing cover; 401. Rotary interface; 402. Handwheel; 403. Mounting bracket; 404. Cross rod; 5. Valve core assembly; 501. Spring pad; 502. Return spring; 503. Mounting groove; 504. Valve core body; 505. Valve core hole; 506. Wedge groove; 507. First sealing ring; 6. Sealing assembly; 601. Positioning post; 602. Second sealing ring; 603. Wedge block; 605. Sealing plug; 606. Connecting hole; 7. Sealing gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a pressure testing connector that opens quickly and responds, including a connector body 1, a fixed interface 2 fixedly installed at the bottom of the connector body 1, a sealing cover 4 threadedly installed at the upper end of the connector body 1, a rotating interface 401 rotatably installed on the sealing cover 4, and mating threads 3 on both the rotating interface 401 and the fixed interface 2, a valve core assembly 5 installed inside the connector body 1, and a sealing assembly 6 installed above the valve core assembly 504. Through the cooperation of the valve core assembly 5 and the sealing assembly 6, the pressure gauge can quickly detect the pressure in the pipeline.

[0024] like Figure 2 and Figure 4As shown, the valve core assembly 5 includes a spring pad 501 fixedly installed at the bottom of the connector body 1, a return spring 502 installed on the spring pad 501, a valve core body 504 slidably installed inside the connector body 1, and the valve core assembly 5 also includes a valve core hole 505 opened in the middle of the valve core body 504 and a wedge groove 506 opened around the valve core hole 505. An installation groove 503 is opened on the inner wall of the connector body 1, and a first sealing ring 507 is installed in the installation groove 503. One end of the return spring 502 is connected to the spring pad 501, and the other end of the return spring 502 is connected to the valve core body 504.

[0025] Specifically, the connector body 1 is connected to the pipeline under test via the fixed interface 2. Before pressure testing, a pressure gauge can be connected to the connector body 1 by rotating the interface 401. After the pressure test is completed, if no further testing is required, the return spring 502 will automatically activate, providing an upward thrust to the valve core body 504. This thrust ensures that the valve core body 504 is firmly pressed against the positioning post 601, thereby achieving a sealing effect. When the valve core body 504 is in close contact with the positioning post 601, the sealing plug 605 accurately blocks the valve core hole 505, effectively preventing gas leakage from the pipeline under test.

[0026] like Figure 2 , Figure 3 and Figure 5 As shown, a sealing gasket 7 is provided at the connection between the sealing cover 4 and the connector body 1. A mounting bracket 403 is fixedly installed at the bottom of the rotating interface 401. A cross rod 404 is fixedly installed in the middle of the mounting bracket 403. A rotating sealing ring is provided between the sealing cover 4 and the rotating interface 401. A handwheel 402 is fixedly installed on the rotating interface 401. The sealing assembly 6 includes a positioning column 601 rotatably installed in the connector body 1. A second sealing ring 602 is fixedly installed on the side wall of the positioning column 601. A sealing plug 605 is fixedly installed in the middle of the bottom of the positioning column 601. A wedge block 603 is fixedly installed around the sealing plug 605. A connecting hole 606 is opened on the positioning column 601. A cross groove is opened on the upper surface of the positioning column 601. The cross rod 404 is connected to the positioning column 601 through the cross groove.

[0027] Specifically, the rotation of the handwheel 402 is transmitted to the crossbar 404 through the rotary interface 401, causing the crossbar 404 to rotate. As the crossbar 404 rotates, it further drives the positioning column 601 to rotate. The rotation of the positioning column 601, in turn, causes the wedge block 603 to rotate. During the rotation of the wedge block 603, it disengages from the wedge groove 506, an action that causes the valve core body 504 to move downwards. The downward movement of the valve core body 504 causes the sealing plug 605 to disengage from the valve core hole 505. In this way, the pipeline under test forms a connected path with the pressure gauge, allowing the pressure gauge to easily and accurately detect the pressure within the pipeline.

[0028] Working principle: When in use, the connector body 1 is connected to the pipe to be tested through the fixed interface 2. Then, the pressure gauge can be connected to the connector body 1 through the rotating interface 401 to achieve quick installation of the pressure gauge. When not testing, the reset spring 502 will provide an upward thrust to the valve core body 504, so that the valve core body 504 is firmly pressed against the positioning column 601. When the valve core body 504 is firmly pressed against the positioning column 601, the sealing plug 605 will block the valve core hole 505 to prevent gas leakage in the pipe to be tested. During testing, the user only needs to turn the handwheel 402. Turning the handwheel 402 will drive the cross bar 404 on the rotary interface 401 to rotate. After the cross bar 404 rotates, it will drive the positioning column 601 to rotate. After the positioning column 601 rotates, it will drive the wedge block 603 to rotate. During the rotation of the wedge block 603, it will disengage from the wedge groove 506 and force the valve core body 504 to move downward. After the valve core body 504 moves downward, it will cause the sealing plug 605 to disengage from the valve core hole 505, so that the pipeline under test is connected to the pressure gauge, which facilitates the pressure gauge to detect the pressure in the pipeline.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-response pressure testing connector, comprising a connector body (1), wherein a fixed interface (2) is fixedly installed at the bottom of the connector body (1), characterized in that: A sealing cover (4) is threaded onto the upper end of the connector body (1). A rotating interface (401) is rotatably mounted on the sealing cover (4). Both the rotating interface (401) and the fixed interface (2) are provided with mating threads (3). A valve core assembly (5) is installed inside the connector body (1). The valve core assembly (5) includes a spring pad (501) fixedly mounted at the bottom of the connector body (1). A return spring (502) is installed on the spring pad (501). A valve core body (504) is slidably mounted inside the connector body (1). A sealing assembly (6) is installed above the valve core body (504).

2. The pressure testing connector with rapid response opening according to claim 1, characterized in that: The valve core assembly (5) further includes a valve core hole (505) located in the middle of the valve core body (504) and a wedge-shaped groove (506) around the valve core hole (505). An installation groove (503) is provided on the inner wall of the connector body (1), and a first sealing ring (507) is installed in the installation groove (503).

3. The pressure testing connector with rapid response opening according to claim 2, characterized in that: A sealing gasket (7) is provided at the connection between the sealing cover (4) and the connector body (1). A mounting bracket (403) is fixedly installed at the bottom of the rotating interface (401). A cross rod (404) is fixedly installed in the middle of the mounting bracket (403). A rotating sealing ring is provided between the sealing cover (4) and the rotating interface (401). A handwheel (402) is fixedly installed on the rotating interface (401).

4. A quick-response opening pressure testing connector according to claim 3, characterized in that: The first sealing ring (507) is installed in the connector body (1) through the mounting groove (503). One end of the reset spring (502) is connected to the spring pad (501), and the other end of the reset spring (502) is connected to the valve core body (504).

5. A quick-response opening pressure testing connector according to claim 4, characterized in that: The sealing assembly (6) includes a positioning column (601) rotatably mounted inside the connector body (1), a second sealing ring (602) fixedly mounted on the side wall of the positioning column (601), a sealing plug (605) fixedly mounted at the middle position of the bottom of the positioning column (601), a wedge block (603) fixedly mounted around the sealing plug (605), and a connecting hole (606) opened on the positioning column (601).

6. A quick-response opening pressure testing connector according to claim 5, characterized in that: The upper surface of the positioning column (601) is provided with a cross groove, and the cross rod (404) is connected to the positioning column (601) through the cross groove.

7. A quick-response opening pressure testing connector according to claim 6, characterized in that: The sealing plug (605) at the bottom of the positioning column (601) is aligned vertically with the valve core hole (505) on the valve core body (504). The wedge block (603) at the bottom of the positioning column (601) is aligned vertically with the wedge groove (506) on the valve core body (504). A rotating groove is provided inside the connector body (1). The positioning column (601) is rotatably installed inside the connector body (1) through the rotating groove.

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