Pressure gauge connecting device for gas pipeline leakproofness test
By designing a mounting base, mounting ring, and multiple sealing rings on the gas pipeline, the sealing problem at the connection between the pressure gauge and the gas pipeline is solved, achieving higher sealing performance and safety.
Patent Information
- Application Number
- CN202422442804.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The existing pressure gauges and gas pipelines are connected by threads, which cannot guarantee a sufficiently high sealing performance, resulting in gaps at the connection and causing safety hazards.
The design incorporates a mounting base, mounting ring, clamping assembly, and multiple sealing rings. The clamping assembly presses and fixes the mounting ring onto the mounting base, while the multiple sealing rings provide a seal, improving the sealing performance of the connection.
It significantly improves the sealing performance at the connection between the pressure gauge and the gas pipeline, enhancing the safety of the gas pipeline tightness test.
Smart Images
Figure CN223741821U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of gas pipeline, in particular to a pressure gauge connecting device for gas pipeline tightness test. BACKGROUND
[0002] In the gas pipeline tightness test, the pressure gauge is widely used as a key device. However, the existing pressure gauge connection method, i.e. directly connecting with the gas pipeline through threads, often cannot guarantee high enough sealing performance, which may cause small gaps at the connection and further may cause safety hazards. Therefore, it is very important to improve the connection method of the pressure gauge and the gas pipeline and enhance the sealing performance for improving the test safety. SUMMARY
[0003] The purpose of the embodiment of the present application is to provide a pressure gauge connecting device for gas pipeline tightness test, which can solve the technical problem that the existing pressure gauge connection method, i.e. directly connecting with the gas pipeline through threads, often cannot guarantee high enough sealing performance, which may cause small gaps at the connection and further may cause safety hazards.
[0004] The embodiment of the present application provides a pressure gauge connecting device for gas pipeline tightness test, which comprises a mounting seat in communication with a gas pipeline, a pressure gauge and a mounting ring. The mounting ring is fixedly sleeved on the pressure gauge. When the pressure gauge is inserted into the mounting seat, the bottom of the mounting ring abuts against the top of the mounting seat, and a first sealing ring is arranged between the mounting ring and the mounting seat. A pressing assembly is arranged between the mounting seat and the mounting ring, and the pressing assembly is used for pressing and fixing the mounting ring on the mounting seat.
[0005] The pressing assembly comprises a fixing ring, a sleeve ring and at least two pressing plates. The fixing ring is fixedly sleeved on the mounting seat. The pressing plates are uniformly distributed on the fixing ring and are hingedly connected with the fixing ring. The horizontal part of the pressing plate can abut against the top of the mounting ring. The sleeve ring is threadedly sleeved on the fixing ring, and the inner wall of the sleeve ring can abut against the vertical part of the pressing plate.
[0006] The bottom of the mounting ring is provided with a first protruding ring, the first protruding ring can be sleeved in the mounting seat, and a second sealing ring is arranged between the side of the first protruding ring and the inner wall of the mounting seat.
[0007] The bottom of the mounting ring is provided with a second protruding ring, the second protruding ring can be sleeved outside the mounting seat, and a third sealing ring is arranged between the side of the second protruding ring and the outer wall of the mounting seat.
[0008] The inner wall of the mounting seat is provided with a third convex ring, when the pressure gauge is inserted into the mounting seat, the bottom of the first convex ring abuts against the top of the third convex ring, and the fourth sealing ring is arranged between the first convex ring and the third convex ring.
[0009] The outer wall of the mounting seat is provided with a fourth convex ring, when the pressure gauge is inserted into the mounting seat, the bottom of the second convex ring abuts against the top of the fourth convex ring, and the fifth sealing ring is arranged between the second convex ring and the fourth convex ring.
[0010] The bottom of the mounting ring is fixedly provided with a positioning block, and the top of the mounting seat is provided with a positioning groove, and the positioning block and the positioning groove are inserted and matched.
[0011] The sleeve ring is provided with a handle.
[0012] The beneficial effects of the utility model are as follows:
[0013] The pressure gauge connecting device for gas pipeline tightness test provided by the utility model, when in use, inserts the pressure gauge into the mounting seat, and makes the mounting ring abut against the mounting seat, the first sealing ring seals the connecting position of the mounting ring and the mounting seat, then the mounting ring is pressed and fixed on the mounting seat through the pressing assembly, and the installation of the pressure gauge is completed; the device can improve the sealing performance of the connecting position of the pressure gauge and the gas pipeline, thereby improving the safety of the gas pipeline tightness test; the mounting ring is pressed and fixed on the mounting seat through the pressing assembly, and the first sealing ring is extruded, and the sealing performance is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.
[0015] Fig. 1 It is a schematic view of the overall front structure in some embodiments of the present application;
[0016] Fig. 2 It is a sectional view of the local front structure in some embodiments of the present application;
[0017] Fig. 3 It is a schematic view of the top structure of the pressing assembly in some embodiments of the present application;
[0018] The reference signs are as follows:
[0019] 1, gas pipeline;
[0020] 2, mounting seat; 21, third convex ring; 22, fourth convex ring; 23, positioning groove;
[0021] 3, pressure gauge;
[0022] 4, mounting ring; 41, first sealing ring; 42, first convex ring; 43, second sealing ring; 44, second convex ring; 45, third sealing ring; 46, fourth sealing ring; 47, fifth sealing ring; 48, positioning block;
[0023] 5, pressing assembly; 51, fixing ring; 52, sleeve ring; 53, pressing plate; 54, handle. DETAILED DESCRIPTION
[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0029] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] As shown in Figs. 1 to 3 The embodiment of the present application provides a pressure gauge connecting device for gas pipeline tightness test, which comprises a mounting seat 2 arranged in communication on a gas pipeline 1, a pressure gauge 3 and a mounting ring 4, the mounting ring 4 is fixedly sleeved on the pressure gauge 3, when the pressure gauge 3 is inserted into the mounting seat 2, the bottom of the mounting ring 4 abuts against the top of the mounting seat 2, and a first sealing ring 41 is arranged between the mounting ring 4 and the mounting seat 2, a pressing assembly 5 is arranged between the mounting seat 2 and the mounting ring 4, and the pressing assembly 5 is used for pressing and fixing the mounting ring 4 on the mounting seat 2.
[0031] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 abuts against the mounting seat 2, the first sealing ring 41 seals the connection between the mounting ring 4 and the mounting seat 2, then the mounting ring 4 is pressed and fixed on the mounting seat 2 through the pressing assembly 5, and the installation of the pressure gauge 3 is completed; the device can improve the sealing performance of the connection between the pressure gauge 3 and the gas pipeline 1, thereby improving the safety of the gas pipeline 1 tightness test; by arranging the pressing assembly 5, the mounting ring 4 is pressed and fixed on the mounting seat 2, and the first sealing ring 41 is extruded, thereby further improving the sealing performance.
[0032] As shown in Fig. 2 and 3 In the embodiment, the pressing assembly 5 comprises a fixed ring 51, a sleeve ring 52 and at least two pressing plates 53, the fixed ring 51 is fixedly sleeved on the mounting seat 2, the pressing plates 53 are uniformly distributed on the fixed ring 51, and the pressing plates 53 are hingedly connected with the fixed ring 51, the horizontal part of the pressing plate 53 can abut against the top of the mounting ring 4, the sleeve ring 52 is threadedly sleeved on the fixed ring 51, and the inner wall of the sleeve ring 52 can abut against the vertical part of the pressing plate 53.
[0033] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 is abutted with the mounting seat 2, then the pressing plate 53 is rotated to abut the horizontal part of the pressing plate 53 with the top of the mounting ring 4, the pressing plate 53 can press and fix the mounting ring 4 on the mounting seat 2, then the sleeve ring 52 is sleeved on the fixing ring 51, and the sleeve ring 52 is screwed on the fixing ring 51 by rotating the sleeve ring 52, at this time, the sleeve ring 52 abuts with the vertical part of the pressing plate 53, the sleeve ring 52 can limit and fix the pressing plate 53, the pressing plate 53 cannot be rotated to release the pressing and fixing of the mounting ring 4, and the pressure gauge 3 can be stably and firmly installed on the gas pipeline 1.
[0034] As shown in Fig. 2 , in the embodiment, the bottom of the mounting ring 4 is provided with a first protruding ring 42, the first protruding ring 42 can be sleeved in the mounting seat 2, and a second sealing ring 43 is arranged between the side of the first protruding ring 42 and the inner wall of the mounting seat 2.
[0035] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 is abutted with the mounting seat 2, the second sealing ring 43 seals the connection between the mounting ring 4 and the mounting seat 2 twice, thereby further improving the sealing performance of the connection between the pressure gauge 3 and the gas pipeline 1.
[0036] As shown in Fig. 2 , in the embodiment, the bottom of the mounting ring 4 is provided with a second protruding ring 44, the second protruding ring 44 can be sleeved outside the mounting seat 2, and a third sealing ring 45 is arranged between the side of the second protruding ring 44 and the outer wall of the mounting seat 2.
[0037] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 is abutted with the mounting seat 2, the third sealing ring 45 seals the connection between the mounting ring 4 and the mounting seat 2 three times, thereby further improving the sealing performance of the connection between the pressure gauge 3 and the gas pipeline 1.
[0038] As shown in Fig. 2 , in the embodiment, the inner wall of the mounting seat 2 is provided with a third protruding ring 21, when the pressure gauge 3 is inserted into the mounting seat 2, the bottom of the first protruding ring 42 abuts with the top of the third protruding ring 21, and a fourth sealing ring 46 is arranged between the first protruding ring 42 and the third protruding ring 21.
[0039] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 is abutted with the mounting seat 2, the fourth sealing ring 46 seals the connection between the mounting ring 4 and the mounting seat 2 four times, thereby further improving the sealing performance of the connection between the pressure gauge 3 and the gas pipeline 1.
[0040] As shown in Fig. 2As shown, in the embodiment, the outer wall of the mounting seat 2 is provided with a fourth protruding ring 22, when the pressure gauge 3 is inserted into the mounting seat 2, the bottom of the second protruding ring 44 abuts against the top of the fourth protruding ring 22, and the fifth sealing ring 47 is arranged between the second protruding ring 44 and the fourth protruding ring 22.
[0041] In use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 abuts against the mounting seat 2, and the fifth sealing ring 47 seals the connection between the mounting ring 4 and the mounting seat 2, thereby further improving the sealing performance of the connection between the pressure gauge 3 and the gas pipeline 1.
[0042] As shown, Fig. 2 In the embodiment, the bottom of the mounting ring 4 is fixedly provided with a positioning block 48, and the top of the mounting seat 2 is provided with a positioning groove 23, and the positioning block 48 is inserted and matched with the positioning groove 23; in use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 abuts against the mounting seat 2, and the positioning block 48 is inserted into the positioning groove 23; the cooperation of the positioning block 48 and the positioning groove 23 limits and fixes the mounting ring 4, preventing the mounting ring 4 from shifting in the horizontal direction, and improving the stability of use.
[0043] As shown, Fig. 2 and 3 In the embodiment, the sleeve ring 52 is provided with a handle 54; the handle 54 facilitates the operator to rotate the sleeve ring 52, and improves the convenience of use.
[0044] Working principle: in use, the pressure gauge 3 is inserted into the mounting seat 2, and the mounting ring 4 abuts against the mounting seat 2, and the positioning block 48 is inserted into the positioning groove 23, the first sealing ring 41 seals the connection between the mounting ring 4 and the mounting seat 2, the second sealing ring 43 seals the connection between the mounting ring 4 and the mounting seat 2, the third sealing ring 45 seals the connection between the mounting ring 4 and the mounting seat 2, the fourth sealing ring 46 seals the connection between the mounting ring 4 and the mounting seat 2, and the fifth sealing ring 47 seals the connection between the mounting ring 4 and the mounting seat 2, then the pressing plate 53 is rotated to abut against the top of the mounting ring 4, the pressing plate 53 can press and fix the mounting ring 4 on the mounting seat 2, then the sleeve ring 52 is sleeved on the fixing ring 51 by grabbing the handle 54, and the sleeve ring 52 is screwed on the fixing ring 51 by rotating the sleeve ring 52, the sleeve ring 52 abuts against the vertical part of the pressing plate 53 at this time, and the sleeve ring 52 can limit and fix the pressing plate 53, the pressing plate 53 cannot be rotated to release the pressing and fixing of the mounting ring 4, and the pressure gauge 3 can be stably and firmly installed on the gas pipeline 1.
[0045] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.
Claims
1. A pressure gauge connection device for gas pipeline tightness test, characterized in that: The utility model provides a pressure gauge fixing device for gas pipeline, which comprises a mounting seat (2) arranged on a gas pipeline (1), a pressure gauge (3) and a mounting ring (4) fixedly sleeved on the pressure gauge (3), the bottom of the mounting ring (4) abuts against the top of the mounting seat (2) when the pressure gauge (3) is inserted into the mounting seat (2), a first sealing ring (41) is arranged between the mounting ring (4) and the mounting seat (2), a pressing assembly (5) is arranged between the mounting seat (2) and the mounting ring (4), and the pressing assembly (5) is used for pressing and fixing the mounting ring (4) on the mounting seat (2).
2. The pressure gauge connection device for gas pipeline tightness test according to claim 1, characterized in that: The pressing assembly (5) comprises a fixing ring (51), a sleeve ring (52) and at least two pressing plates (53), the fixing ring (51) is fixedly sleeved on the mounting seat (2), the pressing plates (53) are uniformly distributed on the fixing ring (51), the pressing plates (53) are hingedly connected with the fixing ring (51), the transverse part of the pressing plate (53) can abut against the top of the mounting ring (4), the sleeve ring (52) is threadedly sleeved on the fixing ring (51), and the inner wall of the sleeve ring (52) can abut against the vertical part of the pressing plate (53).
3. The pressure gauge connection device for gas pipeline tightness test according to claim 1, characterized in that: The bottom of the mounting ring (4) is provided with a first convex ring (42), the first convex ring (42) can be sleeved in the mounting seat (2), and a second sealing ring (43) is arranged between the side of the first convex ring (42) and the inner wall of the mounting seat (2).
4. The pressure gauge connection device for gas pipeline tightness test according to claim 1, characterized in that: The bottom of the mounting ring (4) is provided with a second convex ring (44), the second convex ring (44) can be sleeved out of the mounting seat (2), and a third sealing ring (45) is arranged between the side of the second convex ring (44) and the outer wall of the mounting seat (2).
5. The pressure gauge connection device for gas pipeline tightness test according to claim 3, characterized in that: The inner wall of the mounting seat (2) is provided with a third convex ring (21), the bottom of the first convex ring (42) abuts against the top of the third convex ring (21) when the pressure gauge (3) is inserted into the mounting seat (2), and a fourth sealing ring (46) is arranged between the first convex ring (42) and the third convex ring (21).
6. The pressure gauge connection device for gas pipeline tightness test according to claim 4, characterized in that: The outer wall of the mounting seat (2) is provided with a fourth convex ring (22), the bottom of the second convex ring (44) abuts against the top of the fourth convex ring (22) when the pressure gauge (3) is inserted into the mounting seat (2), and a fifth sealing ring (47) is arranged between the second convex ring (44) and the fourth convex ring (22).
7. The pressure gauge connection device for gas pipeline tightness test according to claim 1, characterized in that: The bottom of the mounting ring (4) is fixedly provided with a positioning block (48), the top of the mounting seat (2) is provided with a positioning groove (23), and the positioning block (48) and the positioning groove (23) are inserted and matched.
8. The pressure gauge connection device for gas pipeline tightness test according to claim 2, characterized in that: A handle (54) is arranged on the sleeve ring (52).