Pressure indicating release tube

Abstract

This utility model discloses a vent pipe with pressure indication, comprising a pipe body, a valve installed at one end of the pipe body, a pressure gauge installed at one end of the valve, and a connecting assembly installed at one end of the pressure gauge. The connecting assembly includes a first connector, a second connector, and a third connector. The first connector is installed at one end of the pressure gauge, the third connector is used for installation on a gas pipeline, one end of the second connector is installed on the third connector, and the inner cavity of the second connector is connected to the inner cavity of the third connector. The other end of the second connector is inserted into the first connector to fix the second connector and the first connector, and the inner cavity of the second connector is connected to the inner cavity of the first connector. By connecting the connecting assembly to the gas pipeline, the vent pipe is connected to the gas pipeline. During the natural gas venting process, the pressure gauge can be used to monitor the natural gas pressure in the gas pipeline in real time, so that the natural gas pressure in the gas pipeline drops to the required pressure, avoiding excessive natural gas venting and waste.

Description

Technical Field

[0001] This utility model relates to the field of gas venting technology, and more specifically, to a venting pipe with pressure indication. Background Technology

[0002] Gas venting refers to the process of releasing air or existing gas from a pipeline during its commissioning, replacement, renovation, repair, or maintenance using a venting device. Current venting devices typically use vertical vent pipes installed on one side of the pipeline. During venting, the released natural gas poses a health hazard to operators. Furthermore, the unpredictable flow rate of the released natural gas makes it impossible to accurately monitor the gas pressure within the pipeline, potentially leading to excessive venting and waste.

[0003] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a vent pipe with pressure indication.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vent pipe with pressure indication includes a pipe body, a valve installed at one end of the pipe body, a pressure gauge installed at one end of the valve, and a connecting assembly installed at one end of the pressure gauge, which is connected to a gas pipeline. The connecting assembly includes a first connector, a second connector, and a third connector. The first connector is installed at one end of the pressure gauge, the third connector is used for installation on the gas pipeline, one end of the second connector is installed on the third connector, and the inner cavity of the second connector communicates with the inner cavity of the third connector. The other end of the second connector is inserted into the first connector to fix the second connector and the first connector together, and the inner cavity of the second connector communicates with the inner cavity of the first connector.

[0007] Furthermore, the first connector includes a base, a connector, and a movable sleeve. The base, connector, and movable sleeve are coaxially arranged. The movable sleeve is fitted onto one end of the base and is slidably connected to the base. One end of the base has multiple mounting holes circumferentially formed. Steel balls are placed in the mounting holes. The inner wall of the movable sleeve has a first convex ring circumferentially formed, which abuts against the steel balls and limits the steel balls within the mounting holes. One end of the connector is installed on the other end of the base, and the inner cavity of the connector is connected to the inner cavity of the base. A vent hole is provided in the inner cavity of the base at the connection point with the connector. A sealing plug for controlling the opening or closing of the vent hole is provided in the inner cavity of one end of the connector.

[0008] Furthermore, a first spring is provided inside the inner cavity of the movable sleeve. The first spring is sleeved on one end of the base body, one end of the first spring abuts against the first protruding ring of the movable sleeve, and the other end of the first spring abuts against the outer wall of the base body.

[0009] Furthermore, a retaining ring for limiting the first convex ring is installed at one end of the seat, and the retaining ring is located outside the steel ball.

[0010] Furthermore, a second spring is installed inside the cavity at one end of the connector, with one end of the second spring abutting against one end of the sealing plug and the other end of the second spring abutting against the inner wall of the connector.

[0011] Furthermore, a sealing ring is installed in the inner cavity of the seat at the vent hole. One end of the connector and the other end of the sealing plug abut against the sealing ring. The other end of the sealing plug is provided with an extension for contacting the second connector. The extension passes through the sealing ring and the vent hole and extends into the inner cavity of the seat. The extension has a groove along its length.

[0012] Furthermore, the other end of the second connector is provided with a concave ring that is adapted to the steel ball.

[0013] Furthermore, the other end of the second connector is provided with a second convex ring on one side of the concave ring, and the outer diameter of the second convex ring gradually decreases from the inside to the outside.

[0014] Furthermore, a retaining ring is provided on the other side of the concave ring on the second connector.

[0015] Furthermore, the third connector includes a mounting part and a connecting part connected to the mounting part. The mounting part has a threaded hole that is threadedly connected to the second connector. The connecting part is a hollow columnar structure, and the inner cavity of the connecting part is connected to the threaded hole of the mounting part.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, by connecting the connecting component to the gas pipeline, the venting pipe is connected to the gas pipeline. During the natural gas venting process, the pressure of the natural gas in the gas pipeline can be monitored in real time using a pressure gauge, so that the pressure of the natural gas in the gas pipeline drops to the required pressure, thus avoiding excessive natural gas venting and waste.

[0018] 2. In this utility model, the connecting assembly is divided into two parts. The first connector is one part and is pre-installed on one end of the pressure gauge. The second connector and the third connector are the other part, and the second connector is pre-installed on the third connector. During installation, the third connector with the second connector is installed on the gas pipeline, and then the first connector is plugged into the second connector, so that the first connector and the second connector are quickly connected and self-locked. By dividing the connecting assembly into two parts and connecting the two parts by plugging them in, the orientation of the digital display of the pressure gauge can be limited, thereby facilitating the observation of the pressure gauge value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a vent pipe with pressure indication in this embodiment;

[0020] Figure 2 This is a schematic diagram of one structure of the first connector in this embodiment;

[0021] Figure 3 This is a schematic diagram of one structure of the seat in this embodiment;

[0022] Figure 4 This is a schematic diagram of one structure of the sealing plug in this embodiment;

[0023] Figure 5 This is a schematic diagram of one structure of the second connector in this embodiment;

[0024] Figure 6 This is a cross-sectional view of one type of connector for the second connector in this embodiment;

[0025] Figure 7 This is a schematic diagram of a connection structure between the first connector and the second connector in this embodiment;

[0026] Figure 8 This is a schematic diagram of a connection structure between the second and third connectors in this embodiment.

[0027] Reference numerals: Pipe body 1, Valve 2, Pressure gauge 3, First connector 4, Seat 401, Connector 402, Moving sleeve 403, Mounting hole 404, Steel ball 405, First convex ring 406, Vent hole 407, Sealing plug 408, First spring 409, Retaining ring 410, Second spring 411, Sealing ring 412, Extension 413, Groove 414, Second connector 5, Concave ring 501, Second convex ring 502, Retaining ring 503, Third connector 6, Mounting part 601, Connecting part 602, Threaded hole 603. Detailed Implementation

[0028] 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.

[0029] Example: A vent pipe with pressure indication, such as Figures 1-8 As shown, the system includes a pipe body 1, with a valve 2 installed at one end of the pipe body 1, a pressure gauge 3 installed at one end of the valve 2, and a connecting assembly installed at one end of the pressure gauge 3. In use, the connecting assembly is connected to the gas pipeline to connect the vent pipe to the gas pipeline. Then, the valve 2 is opened to connect the pipe body 1 and the gas pipeline. Next, the control valve on the gas pipeline is opened to allow natural gas in the gas pipeline to flow into the pipe body 1 and be vented outwards through the pipe body 1. During the natural gas venting process, the pressure gauge 3 can be used to monitor the natural gas pressure in the gas pipeline in real time, ensuring that the natural gas pressure in the gas pipeline drops to the required pressure, thus preventing excessive natural gas venting and waste.

[0030] The hose body 1 is a steel wire braided hydraulic hose. The steel wire layer inside the hose enhances its strength and pressure resistance. One end of the hose body 1 is fitted with a nut connector, which connects to valve 2. Valve 2 is a handle-type valve, and any commercially available product can be selected. Any valve 2 suitable for use with this venting pipe can be purchased. Its installation and usage methods are publicly available in this field and are relatively mature, requiring no optimization or innovation. Therefore, they will not be described in detail, nor will they be protected. The pressure gauge 3 is also a commercially available product. Any pressure gauge 3 suitable for use with this venting pipe can be purchased. Its installation and usage methods are publicly available in this field and are relatively mature, requiring no optimization or innovation. Therefore, they will not be described in detail, nor will they be protected.

[0031] Valve 2 and pressure gauge 3 are located at one end of pipe body 1, while the other end of pipe body 1 serves as a natural gas vent. During gas venting, the operator is positioned at one end of pipe body 1. This facilitates the opening and closing of valve 2 and real-time monitoring of pressure gauge 3, while also keeping the operator away from the natural gas vent to prevent inhalation of excessive natural gas. Preferably, the length of pipe body 1 can be specified to keep the operator as far away from the natural gas vent as possible. The connecting assembly enables quick assembly and disassembly between the vent pipe and the gas pipeline, thereby improving gas venting efficiency.

[0032] Furthermore, such as Figure 1As shown, the connection assembly includes a first connector 4, a second connector 5, and a third connector 6. The first connector 4 is installed at one end of the pressure gauge 3. The third connector 6 is used to install on the gas pipeline. One end of the second connector 5 is installed on the third connector 6, and the inner cavity of the second connector 5 is connected to the inner cavity of the third connector 6. The other end of the second connector 5 is inserted into the first connector 4 to fix the second connector 5 and the first connector 4 together, and the inner cavity of the second connector 5 is connected to the inner cavity of the first connector 4.

[0033] In use, the connecting assembly is disassembled into two parts. The first connector 4 is one part, pre-installed at one end of the pressure gauge 3. The second connector 5 and the third connector 6 are the other part, with the second connector 5 pre-installed on top of the third connector 6. During installation, the third connector 6 with the second connector 5 installed is installed onto the gas pipeline. After installation, the inner cavities of the second connector 5 and the third connector 6 are connected to the gas pipeline. Then, the first connector 4 is inserted into the second connector 5, connecting them. After insertion, the inner cavities of the first connector 4 and the second connector 5 are connected. When valve 2 is opened, the pipe body 1, pressure gauge 3, first connector 4, second connector 5, third connector 6, and gas pipeline are interconnected, allowing natural gas in the gas pipeline to flow into the pipe body 1. Simultaneously, by disassembling the connecting assembly into two parts and connecting them by insertion, the orientation of the digital display of the pressure gauge 3 is defined, ensuring that the digital display of the pressure gauge 3 faces the operator's face, thus facilitating the observation of the pressure gauge reading.

[0034] Furthermore, such as Figures 2-7As shown, the first connector 4 includes a base 401, a connector 402, and a movable sleeve 403. The base 401, connector 402, and movable sleeve 403 are all open-ended, hollow cylindrical structures. They are coaxially arranged. The movable sleeve 403 is fitted onto one end of the base 401 and slidably connected to it. One end of the base 401 has multiple mounting holes 404 circumferentially formed. These mounting holes 404 are adapted to fit steel balls 405. The steel balls 405 are movably installed within the mounting holes 404, meaning a portion of the steel ball 405 protrudes outside the mounting hole 404, while another portion is inside. The portion of the steel ball 405 located within the mounting hole 404... Part of the sleeve is in the mounting hole 404, and the other part is located below the mounting hole 404 and in the inner cavity of one end of the seat body 401; the inner wall of the movable sleeve 403 is provided with a first protruding ring 406, which is a closed ring structure. When the first protruding ring 406 abuts against the steel ball 405, it limits the steel ball 405 in the mounting hole 404; one end of the connector 402 is installed on the other end of the seat body 401, and the inner cavity of the connector 402 is connected to the inner cavity of the seat body 401. A vent hole 407 is provided in the inner cavity of the seat body 401 at the connection with the connector 402. A sealing plug 408 is provided in the inner cavity of one end of the connector 402 to control the opening or closing of the vent hole 407.

[0035] During installation, such as Figure 2 and Figure 7 As shown, first, the movable sleeve 403 is moved to the right, so that the steel ball 405 is released from the restriction of the first convex ring 406; then, while keeping the steel ball 405 released from the restriction of the first convex ring 406, the other end of the second connector 5 is inserted into the inner cavity of one end of the seat 401. During the insertion process, the steel ball 405 is pushed up by the second connector 5 and moves outward; when the concave ring 501 of the second connector 5 corresponds to the steel ball 405, the movable sleeve 403 is moved to the left, so that the first convex ring 406 corresponds to the steel ball 405, and under the abutment of the first convex ring 406, the steel ball 405 moves inward and abuts against the concave ring 501 of the second connector 5. Through the abutment and cooperation of the steel ball 405 and the concave ring 501, the second connector 5 and the seat 401 are connected to achieve self-locking.

[0036] When disassembling, first move the movable sleeve 403 to the right so that the steel ball 405 is freed from the restriction of the first convex ring 406; then, while keeping the steel ball 405 freed from the restriction of the first convex ring 406, remove the other end of the second connector 5 from the inner cavity of one end of the seat body 401; next, move the movable sleeve 403 to the left so that the first convex ring 406 corresponds to the steel ball 405, and under the abutment of the first convex ring 406, the steel ball 405 is reset and limited by the first convex ring 406.

[0037] When the other end of the second connector 5 is inserted into one end of the seat 401, the other end of the second connector 5 pushes the sealing plug 408 to the right, causing the sealing plug 408 to disengage from the vent 407, and the vent 407 to become open, thereby connecting the inner cavity of the second connector 5 with the inner cavity of the connector 402. Natural gas in the gas pipeline flows through the inner cavity of the second connector 5 to the inner cavity of the connector 402, and then through the inner cavity of the connector 402 to the pipe body 1. When the other end of the second connector 5 disengages from one end of the seat 401, the sealing plug 408 resets and continues to seal the vent 407, thereby cutting off the connection between the inner cavity of the seat 401 and the inner cavity of the connector 402.

[0038] Furthermore, a first spring 409 is provided inside the cavity of the movable sleeve 403. The first spring 409 is sleeved on one end of the seat body 401, with one end abutting against the first protruding ring 406 of the movable sleeve 403, and the other end abutting against the outer wall of the seat body 401. By providing the first spring 409, on the one hand, the movable sleeve 403 can automatically reset under the action of the first spring 409; on the other hand, the stroke of the movable sleeve 403 can be limited by the first spring 409 and its elastic force.

[0039] Furthermore, a retaining ring 410 is installed at one end of the base 401. The retaining ring 410 is a steel wire retaining ring and is located outside the steel ball 405. By setting the retaining ring 410, the stroke of the movable sleeve 403 can be limited. At the same time, the retaining ring 410 cooperates with the first spring 409 to limit the movable sleeve 403, so that the first convex ring 406 on the movable sleeve 403 corresponds to the steel ball 405, thereby limiting the steel ball 405 by the first convex ring 406.

[0040] Furthermore, a second spring 411 is installed inside the inner cavity of one end of the connector 402. One end of the second spring 411 abuts against one end of the sealing plug 408, and the other end of the second spring 411 abuts against the inner wall of the connector 402. By setting the second spring 411, on the one hand, the stroke of the sealing plug 408 can be limited, and on the other hand, its elasticity can be used to reset the sealing plug 408, so that the sealing plug 408 continues to seal the vent 407 after the second connector 5 is removed.

[0041] Furthermore, a sealing ring 412 is installed in the inner cavity of the seat 401 at the vent 407. One end of the connector 402 and the other end of the sealing plug 408 abut against the sealing ring 412. The other end of the sealing plug 408 is provided with an extension 413 for contacting the second connector 5. The extension 413 passes through the sealing ring 412 and the vent 407 and extends into the inner cavity of the seat 401. The outer surface of the extension 413 abuts against the inner wall of the sealing ring 412. The extension 413 has a groove 414 along its length.

[0042] By setting a sealing ring 412, it works in conjunction with the sealing plug 408 to improve the sealing effect of the vent 407, and also provides a certain buffering effect to extend the service life of the sealing plug 408. When the other end of the second connector 5 is inserted into one end of the seat 401, the other end of the second connector 5 abuts against the contact extension 413, and pushes the sealing plug 408 to the right through the extension 413, causing the sealing plug 408 to disengage from the vent 407, thus opening the vent 407 and connecting the inner cavity of the second connector 5 and the inner cavity of the connector 402.

[0043] Preferably, the other end of the second connector 5 is provided with a concave ring 501 that is adapted to the steel ball 405. The steel ball 405 abuts against the concave ring 501 to achieve self-locking between the second connector 5 and the first connector 4.

[0044] Preferably, the other end of the second connector 5 is provided with a second convex ring 502 on one side of the concave ring 501, and the outer diameter of the second convex ring 502 gradually decreases from the inside to the outside. By providing the second convex ring 502, the gradual change in the outer diameter of the second convex ring 502 facilitates the lifting of the steel ball 405, thereby making it easier for the second connector 5 to be inserted into the inner cavity of one end of the seat 401.

[0045] Preferably, a retaining ring 503 is provided on the second connector 5 on the other side of the concave ring 501. By providing the retaining ring 503, the insertion stroke of the second connector 5 is limited. When the retaining ring 503 abuts against the contact seat 401, the steel ball 405 is facing the concave ring 501 and abuts against the concave ring 501, and the second connector 5 pushes the extension 413 to open the vent 407.

[0046] Furthermore, such as Figure 8 As shown, the third connector 6 includes a mounting part 601 and a connecting part 602 connected to the mounting part 601. The mounting part 601 has a threaded hole 603 that is threadedly connected to the second connector 5. The connecting part 602 is a hollow columnar structure, and the inner cavity of the connecting part 602 is connected to the threaded hole 603 of the mounting part 601.

[0047] Preferably, the outer surface of the connecting part 602 of the third connector 6 is provided with external threads, and the gas pipeline is provided with an interface adapted to the connecting part 602. The inner surface of the interface is provided with internal threads, and the connecting part 602 is threadedly connected to the interface of the gas pipeline; the inner surface of the threaded hole 603 of the mounting part 601 is provided with internal threads, the outer surface of one end of the second connector 5 is provided with external threads, and one end of the second connector 5 is threadedly connected to the mounting part 601; the outer surface of the other end of the connecting head 402 of the first connector 4 is provided with external threads, and one end of the interface of the pressure gauge 3 is provided with internal threads. The connecting head 402 of the first connector 4 is threadedly connected to one end of the interface of the pressure gauge 3.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vent pipe with pressure indication, comprising a pipe body (1), characterized in that, A valve (2) is installed at one end of the pipe body (1), a pressure gauge (3) is installed at one end of the valve (2), and a connecting assembly is installed at one end of the pressure gauge (3), and the gas pipeline is connected through the connecting assembly; the connecting assembly includes a first connector (4), a second connector (5) and a third connector (6), the first connector (4) is installed at one end of the pressure gauge (3), the third connector (6) is used to be installed on the gas pipeline, one end of the second connector (5) is installed on the third connector (6), and the inner cavity of the second connector (5) is connected to the inner cavity of the third connector (6), the other end of the second connector (5) is inserted into the first connector (4) so ​​that the second connector (5) and the first connector (4) are fixedly connected, and the inner cavity of the second connector (5) is connected to the inner cavity of the first connector (4).

2. The vent pipe with pressure indication according to claim 1, characterized in that, The first connector (4) includes a base (401), a connector (402), and a movable sleeve (403). The base (401), connector (402), and movable sleeve (403) are coaxially arranged. The movable sleeve (403) is sleeved on one end of the base (401) and slidably connected to the base (401). One end of the base (401) is provided with a plurality of mounting holes (404) circumferentially. Steel balls (405) are provided in the mounting holes (404). The inner wall of the movable sleeve (403) is provided with a first convex ring (406) circumferentially. The steel ball (405) is confined within the mounting hole (404) by the first protruding ring (406) abutting against the steel ball (405). One end of the connector (402) is installed at the other end of the base (401), and the inner cavity of the connector (402) is connected to the inner cavity of the base (401). A vent hole (407) is provided in the inner cavity of the base (401) at the connection with the connector (402). A sealing plug (408) for controlling the opening or closing of the vent hole (407) is provided in the inner cavity of one end of the connector (402).

3. A vent pipe with pressure indication according to claim 2, characterized in that, The inner cavity of the movable sleeve (403) is provided with a first spring (409). The first spring (409) is sleeved on one end of the seat body (401). One end of the first spring (409) abuts against the first protruding ring (406) of the movable sleeve (403), and the other end of the first spring (409) abuts against the outer wall of the seat body (401).

4. A vent pipe with pressure indication according to claim 2, characterized in that, One end of the seat (401) is fitted with a retaining ring (410) for limiting the first convex ring (406), the retaining ring (410) being located outside the steel ball (405).

5. A vent pipe with pressure indication according to claim 2, characterized in that, A second spring (411) is installed in the inner cavity of one end of the connector (402). One end of the second spring (411) abuts against one end of the sealing plug (408), and the other end of the second spring (411) abuts against the inner wall of the connector (402).

6. A vent pipe with pressure indication according to claim 2, characterized in that, A sealing ring (412) is installed in the inner cavity of the seat (401) at the vent (407). One end of the connector (402) and the other end of the sealing plug (408) abut against the sealing ring (412). The other end of the sealing plug (408) is provided with an extension (413) for contacting the second connector (5). The extension (413) passes through the sealing ring (412) and the vent (407) and extends into the inner cavity of the seat (401). The extension (413) has a groove (414) along its length.

7. A vent pipe with pressure indication according to claim 2, characterized in that, The other end of the second connector (5) is provided with a concave ring (501) that is adapted to the steel ball (405).

8. A vent pipe with pressure indication according to claim 7, characterized in that, The other end of the second connector (5) is provided with a second convex ring (502) on one side of the concave ring (501), and the outer diameter of the second convex ring (502) gradually decreases from the inside to the outside.

9. A vent pipe with pressure indication according to claim 7, characterized in that, The second connector (5) is provided with a retaining ring (503) on the other side of the concave ring (501).

10. A vent pipe with pressure indication according to claim 1, characterized in that, The third connector (6) includes a mounting part (601) and a connecting part (602) connected to the mounting part (601). The mounting part (601) has a threaded hole (603) that is threadedly connected to the second connector (5). The connecting part (602) is a hollow columnar structure, and the inner cavity of the connecting part (602) is connected to the threaded hole (603) of the mounting part (601).

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