Urban gas pipeline joint protection device

Abstract

The utility model discloses an urban gas pipeline joint protection device which comprises a protection device body and a locking device, the protection device body is used for being installed at the joint of two gas pipelines, and the locking device is used for improving the sealing performance of the protection device body. The protection device comprises a sealing box and a sealing cover, the sealing box is arranged on one gas pipeline in a sealing mode and connected with the sealing cover in a sliding and sealing mode through a sliding assembly, the sealing cover is in sliding fit with the other gas pipeline, a tension spring is arranged on the sealing box, one end of the tension spring is connected with the sealing box, and the other end of the tension spring is connected with the sealing cover. The locking device comprises a first mounting frame and a second mounting frame, the first mounting frame is mounted on the sealing cover, and a locking part is arranged on the first mounting frame in a sliding manner; the gas pipeline joint protection device aims to solve the problem that a gas pipeline joint protection device in the prior art cannot solve gas leakage of a gas pipeline joint.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline protection, in particular to a protective device for a connection of a town gas pipeline. Background Art

[0002] With the popularization and development of urban gas supply, the safety of gas pipeline joints has received more and more attention. Urban gas pipeline joints refer to the interconnection points of various pipe sections in the gas pipeline system, including connecting pipes and elbows. Since the gaps at the joints are exposed to the environment of young children, they are easily affected by factors such as extrusion, conduction, and corrosion, leading to safety hazards such as gas leakage and rupture.

[0003] At present, there are mainly the following types of protective devices for urban gas pipeline connections:

[0004] 1. Metal casing: Metal casing is a device that protects the surrounding of the connection. It is usually made of materials such as stainless steel, copper or aluminum, with the same strength and corrosion resistance, which can effectively protect the connection from external forces and environmental corrosion, and improve the safety of the connection.

[0005] 2. Protective cover: The protective cover is a shell device used to cover the joint. It is usually made of anti-corrosion or low-temperature resistant materials, which can prevent external objects from directly contacting the joint, and has the functions of heat preservation, corrosion prevention, and isolation from the environment.

[0006] 3. Isolation gasket: An isolation gasket is a bolt embedded in a joint. It is usually made of soft, high-temperature resistant material, which can buffer and concentrate the pipe when it vibrates or changes in temperature, and prevent leakage.

[0007] 4. Leak detector: A leak detector is a device used to detect leaks at joints in a timely manner. It is usually installed near the joints, and by monitoring the pressure and leakage of the pipeline, it detects abnormal conditions and issues an alarm in a timely manner, and takes corresponding measures to ensure the safety of the joints.

[0008] 5. Identification mark: Identification mark is a device used to mark the location of the connection and related information. It reminds people of the existence of the connection through marking signs, marking lines, etc., to prevent damage and misoperation.

[0009] The utility model patent with application number: CN202322004458.1 and publication number: CN220453910U (hereinafter referred to as "prior art 1") discloses a pipeline connection protection structure with good sealing effect, including a pipeline, a mounting frame is provided on the pipeline, a sliding frame is provided on the mounting frame, a protective device is provided on the mounting frame, and a buffer device is provided on the sliding frame. The protective device includes: a worm, the worm is rotatably connected to the side inner wall of the mounting frame through a bearing, a worm wheel is meshingly connected to the worm, and a bidirectional threaded rod is fixedly connected to the inner ring of the worm wheel.

[0010] The specification of prior art 1 discloses a protective structure for pipe joints with good sealing effect. When in use, the worm is rotated by rotating the turntable, and the rotation of the worm drives the worm wheel to rotate, and the rotation of the worm wheel drives the two-way threaded rod to rotate, and the rotation of the two-way threaded rod drives the sliding plate to move, and the movement of the sliding plate drives the movement of the clamping plate. The movement of the clamping plate is used to clamp and fix air-conditioning pipes of different sizes. However, in actual applications, it can only prevent the gas pipeline connection from being damaged by foreign objects, and cannot solve the problem of gas leakage at the connection of the gas pipeline. Summary of the invention

[0011] The utility model provides a protective device for a town gas pipeline connection, aiming to solve the problem that the protective device for a gas pipeline connection in the prior art cannot solve the gas leakage at the gas pipeline connection.

[0012] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0013] A protective device for a town gas pipeline connection, comprising a protective device and a locking device, wherein the protective device is used to be installed at the connection of two gas pipelines, and the locking device is used to improve the sealing performance of the protective device;

[0014] The protection device includes a sealing box and a sealing cover. The sealing box is sealingly arranged on one of the gas pipelines. The sealing box is slidingly and sealingly connected with the sealing cover through a sliding assembly. The sealing cover is slidingly matched with the other gas pipeline. A tension spring is arranged on the sealing box. One end of the tension spring is connected to the sealing box, and the other end is connected to the sealing cover.

[0015] The locking device includes a first mounting frame and a second mounting frame, the first mounting frame is mounted on the sealing cover, a locking portion is slidably arranged on the first mounting frame, a first spring is arranged between the locking portion and the first mounting frame, one end of the first spring is fixedly connected to the locking portion, and the other end is fixedly connected to the first mounting frame; the second mounting frame is arranged on the sealing box, a cross plate is arranged on the second mounting frame, a sliding rod is slidably arranged on the second mounting frame, a limiting plate is arranged on the sliding rod, a second spring is arranged on the limiting plate, one end of the second spring is fixedly connected to the limiting plate, and the other end is fixedly connected to the second mounting frame, a top groove and a through hole are arranged at the end of the sliding rod, the locking portion is used to contact the bottom surface of the top groove, and the locking portion is also used to pass through the through hole.

[0016] Furthermore, the sliding assembly includes a plurality of guide holes and guide rods, the tension spring is arranged inside the guide hole, one end of the tension spring is connected to the bottom of the sliding hole, and the other end is connected to the guide rod, the number and position of the guide rod correspond to the guide holes, the guide rod slides with the guide hole, and the guide rod is arranged on the sealing plate.

[0017] Furthermore, the locking part includes a locking rod, a round rod and a locking plate. The locking rod and the round rod are respectively arranged on the upper and lower surfaces of the locking plate. The round rod is slidably matched with the first mounting frame. The locking rod is used to contact the bottom surface of the top groove and to pass through the through hole; one end of the first spring is connected to the locking plate and the other end is connected to the first mounting frame.

[0018] Furthermore, there are two locking devices, which are located at both ends of the gas pipeline.

[0019] Furthermore, the end of the gas pipeline is a flange structure, and two adjacent gas pipeline sections are detachably and hermetically connected via the flange structure.

[0020] Furthermore, a sealing ring is provided on the flange structure, and the two flange structures are detachably connected by bolts and nuts, and the sealing ring is compressed when two adjacent flange structures are buckled together.

[0021] Furthermore, the first mounting bracket and the second mounting bracket are respectively connected to the sealing cover and the sealing box through bolts.

[0022] Furthermore, a gas sensor is arranged inside the sealed box, and the gas sensor is connected to the gas valve through a controller.

[0023] Furthermore, an alarm is provided on the sealed box, and the alarm is connected to the gas sensor through a controller.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model mainly comprises a protection device and a locking device. The protection device is used to be installed at the connection of two gas pipelines, and the locking device is used to improve the sealing performance of the protection device. In actual use, the staff first installs the sealing box and the sealing cover on the gas pipeline. When in use, the tension spring tightly pulls the sealing cover, the locking part on the first mounting frame passes through the through hole on the sliding rod of the second mounting frame, and the second spring on the second mounting frame presses the limiting plate, so that the limiting plate and the cross plate are tightly fitted, and the sealing cover is tightly buckled on the sealing box through the cooperation of the sliding rod and the locking part to achieve the sealing of the gas pipeline connection. When the gas pipeline connection needs to be sealed, When disassembling or repairing, the user can pull the first mounting bracket. At this time, the locking part moves with the first mounting bracket and squeezes the first spring. The sealing cover overcomes the tension of the tension spring and disengages from the through hole. At the same time, the sliding rod is pulled, and the sliding rod and the limit plate move together in the direction away from the sealing box. At this time, the limit plate squeezes the second spring until the position of the locking part corresponds to the position of the top groove on the sliding rod. The locking part is released. Under the action of the first spring, the locking part cooperates with the top groove to fix the position of the sliding rod, and the locking part cooperates with the top groove to fix the position of the sealing cover. At this time, the sealing cover is opened and the connection of the gas pipeline can be repaired and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle.

[0029] In the figure, 101-gas pipeline, 102-sealing box, 103-sealing cover, 105-first mounting frame, 106-second mounting frame, 107-locking part, 108-first spring, 109-cross plate, 110-sliding rod, 111-limiting plate, 112-second spring, 113-top groove, 114-through hole, 115-guide hole, 116-guide rod, 117-locking rod, 118-round rod, 119-locking plate, 120-flange structure. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the protection scope of the present invention.

[0031] See also Figure 1 and Figure 2 As shown, this embodiment discloses a protective device for the connection of a town gas pipeline 101, including a protective device and a locking device. The protective device is used to be installed at the connection of two gas pipelines 101, and the locking device is used to improve the sealing performance of the protective device;

[0032] The protection device includes a sealing box 102 and a sealing cover 103. The sealing box 102 is sealingly arranged on one of the gas pipelines 101. The sealing box 102 is slidingly and sealingly connected with the sealing cover 103 through a sliding assembly. The sealing cover 103 is slidingly matched with the other gas pipeline 101. A tension spring is arranged on the sealing box 102. One end of the tension spring is connected to the sealing box 102, and the other end is connected to the sealing cover 103.

[0033] The locking device includes a first mounting frame 105 and a second mounting frame 106. The first mounting frame 105 is mounted on the sealing cover 103. A locking portion 107 is slidably provided on the first mounting frame 105. A first spring 108 is provided between the locking portion 107 and the first mounting frame 105. One end of the first spring 108 is fixedly connected to the locking portion 107, and the other end is fixedly connected to the first mounting frame 105. The second mounting frame 106 is provided on the sealing box 102. A horizontal plate 109 is arranged, a slide bar 110 is slidably arranged on the second mounting frame 106, a limit plate 111 is arranged on the slide bar 110, a second spring 112 is arranged on the limit plate 111, one end of the second spring 112 is fixedly connected to the limit plate 111, and the other end is fixedly connected to the second mounting frame 106, a top groove 113 and a through hole 114 are arranged at the end of the slide bar 110, a locking portion 107 is used to contact the bottom surface of the top groove 113, and the locking portion 107 is also used to pass through the through hole 114;

[0034] The utility model mainly comprises a protection device and a locking device. The protection device is used to be installed at the connection of two gas pipelines 101, and the locking device is used to improve the sealing performance of the protection device. In actual use, the staff first installs the sealing box 102 and the sealing cover 103 on the gas pipeline 101. When in use, the tension spring tightly pulls the sealing cover 103, and the locking part 107 on the first mounting frame 105 passes through the through hole 114 on the sliding rod 110 of the second mounting frame 106, and the second spring 112 on the second mounting frame 106 squeezes the limiting plate 111, so that the limiting plate 111 and the cross plate 109 are tightly fitted, and the sealing cover 103 is tightly buckled on the sealing box 102 through the cooperation of the sliding rod 110 and the locking part to achieve the sealing of the connection of the gas pipeline 101. When the connection of the gas pipeline 101 needs to be sealed, When disassembling or repairing, the user can pull the first mounting bracket 105. At this time, the locking portion moves with the first mounting bracket 105 and squeezes the first spring 108. The sealing cover 103 overcomes the tension of the tension spring and disengages from the through hole 114. At the same time, the sliding rod 110 is pulled, and the sliding rod 110 and the limiting plate 111 move together in the direction away from the sealing box 102. At this time, the limiting plate 111 squeezes the second spring 112 until the position of the locking portion 107 corresponds to the position of the top groove 113 on the sliding rod 110. The locking portion is released. Under the action of the first spring 108, the locking portion cooperates with the top groove 113 to fix the position of the sliding rod 110, and the locking portion cooperates with the top groove 113 to fix the position of the sealing cover 103. At this time, the sealing cover 103 is opened and the connection of the gas pipeline can be repaired and disassembled.

[0035] In some embodiments, the sliding assembly includes a plurality of guide holes 115 and a guide rod 116. The tension spring is arranged inside the guide hole 115. One end of the tension spring is connected to the bottom of the sliding hole, and the other end is connected to the guide rod 116. The number and position of the guide rods 116 correspond to those of the guide holes 115. The guide rods 116 slide in cooperation with the guide holes 115, and the guide rods 116 are arranged on the sealing plate.

[0036] In actual use, there are four guide holes 115, which are arranged at the four corners of the sealing box 102. The tension springs are arranged in the guide holes 115. The number and position of the guide rods 116 correspond to the guide holes 115. One end of the guide rod 116 is fixedly connected to the sealing cover 103, and the other end is connected to the end of the tension spring and is used to slide in the guide hole 115. The advantage of this arrangement is that the sealing cover 103 is more stable when sliding.

[0037] In some embodiments, the locking portion 107 includes a locking rod 117, a round rod 118 and a locking plate 119. The locking rod 117 and the round rod 118 are respectively arranged on the upper and lower surfaces of the locking plate 119. The round rod 118 is slidably matched with the first mounting frame 105. The locking rod 117 is used to contact the bottom surface of the top groove 113 and to pass through the through hole 114. One end of the first spring 108 is connected to the locking plate 119 and the other end is connected to the first mounting frame 105.

[0038] In actual use, the length of the locking rod 117 is greater than the length of the sliding rod 110. When the sliding rod 110 is pulled out to the maximum position, the locking rod 117 still cannot be disengaged from the through hole 114. At this time, it is necessary to press the locking plate 119, the locking plate 119 squeezes the first spring 108, and the round rod 118 slides on the first mounting bracket 105. At this time, the locking rod 117 will be disengaged from the through hole 114. At this time, when the sliding rod 110 is pulled, the top groove 113 on the sliding rod 110 corresponds to the position of the locking rod 117, and then the locking plate 119 is released. 9. The reaction force of the first spring 108 bounces the locking rod 117 into the top groove 113, and the sealing cover 103 is pulled by the tension spring and the force of the first spring 108 acting on the top groove 113 fixes the sealing cover 103. When the sealing cover 103 needs to be closed, it is only necessary to move the locking plate 119. After the sliding rod 110 is reset under the action of the second spring 112 and the locking rod 117 is matched with the through hole 114, the tension spring pulls the sealing cover 103 back to its original position, so that the sealing cover 103 is tightly pressed on the sealing box 102 to achieve sealing.

[0039] In some embodiments, there are two locking devices, which are located at both ends of the gas pipeline 101 .

[0040] In actual use, providing two locking devices can make the sealing cover 103 and the sealing box 102 more stable when they are matched.

[0041] In some embodiments, the end of the gas pipeline 101 is a flange structure 120 , and two adjacent gas pipelines 101 are detachably sealed and connected via the flange structure 120 .

[0042] The benefit of providing the flange structure 120 is that it facilitates the installation of two adjacent gas pipelines 101 .

[0043] In some embodiments, a sealing ring is provided on the flange structure 120, and two flange structures 120 are detachably connected by bolts and nuts. When two adjacent flange structures 120 are buckled together, the sealing ring is compressed.

[0044] In actual use, a sealing ring can be provided to achieve sealing between the two sections of the gas pipeline 101 .

[0045] In some embodiments, the first mounting bracket 105 and the second mounting bracket 106 are respectively connected to the sealing cover 103 and the sealing box 102 by bolts.

[0046] The use of bolt connection can facilitate installation and replacement of the first mounting bracket 105 and the second mounting bracket 106 .

[0047] In some embodiments, a gas sensor is disposed inside the sealed box 102 , and the gas sensor is connected to the gas valve through a controller.

[0048] During actual use, the gas sensor is connected to the control end. In this embodiment, as an optional implementation, the control end is the user's smart phone. When a gas leak occurs, a signal will be sent to the smart phone so that the user can notify maintenance personnel to perform maintenance.

[0049] In some embodiments, an alarm is provided on the sealed box 102, and the alarm is connected to the gas sensor through a controller. In actual use, the alarm is provided so that when the gas sensor detects a gas leak in the gas pipeline 101, the alarm light is controlled to emit a buzzer to alert the neighbors around, and the user can also be prompted to report the problem.

[0050] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0052] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0053] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a town gas pipeline connection, characterized in that: It comprises a protection device and a locking device, wherein the protection device is used to be installed at the connection of two gas pipelines (101), and the locking device is used to improve the sealing performance of the protection device; The protection device comprises a sealing box (102) and a sealing cover (103); the sealing box (102) is sealingly arranged on one of the gas pipelines (101); the sealing box (102) is slidingly and sealingly connected to the sealing cover (103) via a sliding assembly; the sealing cover (103) is slidingly matched with the other gas pipeline (101); a tension spring is arranged on the sealing box (102); one end of the tension spring is connected to the sealing box (102), and the other end is connected to the sealing cover (103); The locking device comprises a first mounting frame (105) and a second mounting frame (106), wherein the first mounting frame (105) is mounted on the sealing cover (103), a locking portion (107) is slidably arranged on the first mounting frame (105), a first spring (108) is arranged between the locking portion (107) and the first mounting frame (105), one end of the first spring (108) is fixedly connected to the locking portion (107), and the other end is fixedly connected to the first mounting frame (105); the second mounting frame (106) is arranged on the sealing box (102), and a A horizontal plate (109), a sliding rod (110) is slidably arranged on the second mounting frame (106), a limiting plate (111) is arranged on the sliding rod (110), a second spring (112) is arranged on the limiting plate (111), one end of the second spring (112) is fixedly connected to the limiting plate (111), and the other end is fixedly connected to the second mounting frame (106), a top groove (113) and a through hole (114) are arranged at the end of the sliding rod (110), the locking portion (107) is used to contact the bottom surface of the top groove (113), and the locking portion (107) is also used to pass through the through hole (114).

2. A town gas pipeline connection protection device according to claim 1, characterized in that: The sliding assembly comprises a plurality of guide holes (115) and a guide rod (116), wherein the tension spring is arranged inside the guide hole (115), one end of the tension spring is connected to the bottom of the sliding hole, and the other end is connected to the guide rod (116), the number and position of the guide rod (116) correspond to the guide holes (115), the guide rod (116) and the guide hole (115) are slidably matched, and the guide rod (116) is arranged on the sealing plate.

3. A town gas pipeline connection protection device according to claim 1, characterized in that: The locking portion (107) comprises a locking rod (117), a round rod (118) and a locking plate (119); the locking rod (117) and the round rod (118) are respectively arranged on the upper and lower surfaces of the locking plate (119); the round rod (118) is slidably matched with the first mounting frame (105); the locking rod (117) is used to contact the bottom surface of the top groove (113) and to pass through the through hole (114); one end of the first spring (108) is connected to the locking plate (119) and the other end is connected to the first mounting frame (105).

4. A town gas pipeline connection protection device according to claim 1, characterized in that: There are two locking devices, which are located at both ends of the gas pipeline (101).

5. A town gas pipeline connection protection device according to claim 1, characterized in that: The end of the gas pipeline (101) is a flange structure (120), and two adjacent gas pipeline sections (101) are detachably sealed and connected via the flange structure (120).

6. A town gas pipeline connection protection device according to claim 1, characterized in that: A sealing ring is provided on the flange structure (120), and the two flange structures (120) are detachably connected by bolts and nuts, and the sealing ring is pressed tightly when two adjacent flange structures (120) are buckled together.

7. A town gas pipeline connection protection device according to claim 1, characterized in that: The first mounting frame (105) and the second mounting frame (106) are respectively connected to the sealing cover (103) and the sealing box (102) by bolts.

8. A town gas pipeline connection protection device according to claim 1, characterized in that: A gas sensor is arranged inside the sealed box (102), and the gas sensor is connected to the gas valve through a controller.

9. A town gas pipeline connection protection device according to claim 1, characterized in that: The sealed box (102) is provided with an alarm, which is connected to the gas sensor via a controller.

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