Double-leakage-proof gas electric melting pipe fitting based on intelligent protection

Abstract

The utility model relates to the technical field of welding joints with resistors in the joints, and discloses a double-leakage-proof gas electric melting pipe fitting based on intelligent protection, which comprises a gas pipe, an electric melting pipe fitting body is sleeved on the outer surface of the gas pipe, two electric fuses are fixedly connected on the inner surface of the electric melting pipe fitting body, and the electric fuses are connected with the electric melting pipe fitting body. Two sealing rubber rings are fixedly connected to the inner surface of the electric smelting pipe fitting body, two wiring terminals are fixedly connected to the upper side of the outer surface of the electric smelting pipe fitting body, a mounting ring groove is formed in the outer surface of the electric smelting pipe fitting body, a plurality of limiting inserting grooves are formed in the front wall and the rear wall of the mounting ring groove, and two clamping mechanisms are arranged in the mounting ring groove. In this way, the detachable knocking block can be arranged on the electric smelting pipe fitting body, so that when the electric smelting pipe fitting body is installed, a worker can drive the electric smelting pipe fitting body to move on a gas pipe through the knocking block, and the worker can conveniently install the electric smelting pipe fitting body on the gas pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of welded joints with resistance present within the joint, specifically a double-leakage-proof gas electrofusion fitting based on intelligent protection. Background Technology

[0002] The intelligent protection-based dual-leakage-proof gas electrofusion fitting is an electrofusion fitting specifically designed for gas systems. It achieves dual leak-proof function through a double-seal design, with superior leak-proof performance, ensuring the safe operation of gas pipelines. This design enhances the effectiveness of the electrofusion fitting, improves the safety and reliability of gas pipelines, reduces the risk of gas leakage, and provides higher safety assurance for gas pipeline connections.

[0003] Because double-leak-proof gas electrofusion fittings combine the advantages of electrofusion fittings with the sealing advantage of socket fittings via a sealing ring, thus providing double leak protection, the sealing ring inside the electrofusion fitting will adhere to the outer surface of the gas pipe during installation. This increases the friction between the electrofusion fitting and the gas pipe. Greater friction requires greater force to move the electrofusion fitting, making it difficult to move it on the gas pipe. Furthermore, the circular shape of the fitting, when attached to the gas pipe, makes it easy to strike both the fitting and the gas pipe with tools, causing damage and further complicating the installation process. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double-leakage-proof gas electrofusion fitting based on intelligent protection. It features a detachable striking block on the electrofusion fitting, allowing workers to move the fitting along the gas pipe by striking the block during installation, thus facilitating its installation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-leakage-proof gas electrofusion fitting based on intelligent protection, including a gas pipe, an electrofusion fitting body sleeved on the outer surface of the gas pipe, and an installation annular groove formed on the outer surface of the electrofusion fitting body;

[0008] Several limiting slots are provided on the front and rear walls of the mounting ring groove. The limiting slots are arranged in a ring array. Two snap-fit ​​mechanisms are provided inside the mounting ring groove. The two snap-fit ​​mechanisms have the same connection structure and are arranged symmetrically from left to right.

[0009] The locking mechanism includes a striking block, two sliding grooves, two sliding blocks, several limit rods, four springs, four control grooves, and four control rods.

[0010] Preferably, two electrofusion wires are fixedly connected to the inner surface of the electrofusion fitting body, and the two electrofusion wires are arranged symmetrically front and back;

[0011] Two sealing rings are fixedly connected to the inner surface of the electrofusion fitting body. The two sealing rings are respectively set on the front and rear sides of the two electrofusion wires.

[0012] Two terminals are fixedly connected to the upper side of the outer surface of the electrofusion fitting body, and two observation pins are provided on the upper side of the outer surface of the electrofusion fitting body.

[0013] Preferably, the striking block is disposed inside the mounting ring groove, and both sliding grooves are formed inside the striking block, with the two sliding grooves arranged in a front-to-back configuration.

[0014] Two sliding blocks are slidably connected inside two sliding grooves, and several limiting rods are fixedly connected to the two sliding blocks on opposite sides.

[0015] Preferably, the plurality of limiting rods are arranged in a circular array, and the relatively far ends of the plurality of limiting rods all slide out to form a striking block;

[0016] The limiting rod is adapted to the limiting slot, and four springs are fixedly connected to the opposite surfaces of the two sliding blocks respectively. The opposite ends of the four springs are fixedly connected to the inner walls of the two sliding grooves respectively.

[0017] Preferably, the four springs are arranged vertically, and the four control slots are all formed on the outer surface of the striking block;

[0018] The four control slots are arranged in a rectangular array, and the interiors of the two front control slots are connected to the interiors of the front sliding slot.

[0019] Preferably, the interiors of the two rear control slots are connected to the interiors of the rear sliding slots, and the four control rods are respectively fixedly connected to the outer surfaces of the two sliding blocks;

[0020] Four control levers extend into striking blocks via four control slots, and four springs are positioned near the four control levers.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides a double-leakage-proof gas electrofusion fitting based on intelligent protection, which has the following beneficial effects:

[0023] (1) The intelligent protection-based double leak-proof gas electrofusion fitting moves the two front control rods and the two rear control rods toward the opposite side. After transmission, the limit rod moves into the limit slot to form a snap-fit ​​state. Then, the right-side knocking block is installed into the installation ring groove in the same way. Then, the operator can knock the two knocking blocks with a tool. The two knocking blocks will drive the electrofusion fitting body to move synchronously. After the installation of the electrofusion fitting body is completed, the gas pipe and the electrofusion fitting body can be electrofused through the two wiring terminals. The progress of the electrofusion work can be observed through the two observation pins. Then, the two knocking blocks can be removed to use the rest of the electrofusion fitting body. In this way, detachable knocking blocks can be set on the electrofusion fitting body. When installing the electrofusion fitting body, the operator can drive the electrofusion fitting body to move on the gas pipe through the knocking blocks, which is convenient for the operator to install the electrofusion fitting body on the gas pipe.

[0024] (2) The intelligent protection-based double leak-proof gas electrofusion fitting has four springs fixedly connected to the opposite surfaces of the two sliding blocks, and the opposite ends of the four springs are fixedly connected to the inner walls of the two sliding grooves. The four springs are arranged vertically and vertically, and are located near the four control rods. The springs are compressed by uniform extrusion force, so that the springs will not tilt when compressed, thus ensuring that the sliding blocks will not tilt when they move. This ensures the synchronicity of the movement of the limit rods, so that the engagement and disengagement of all limit rods and limit slots can be carried out simultaneously, ensuring the stability of the engagement mechanism. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a double-leakage-proof gas electrofusion fitting based on intelligent protection according to this utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the electrofusion fitting body of this utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the left-side striking block of this utility model.

[0028] In the diagram: 1. Gas pipe; 2. Electrofusion fitting body; 3. Electrofusion wire; 4. Sealing ring; 5. Terminal block; 6. Observation pin; 7. Mounting ring groove; 8. Limiting slot; 9. Knocking block; 10. Sliding groove; 11. Sliding block; 12. Limiting rod; 13. Spring; 14. Control groove; 15. Control rod. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 3 This utility model provides a new technical solution: a double-leakage-proof gas electrofusion fitting based on intelligent protection, including a gas pipe 1, an electrofusion fitting body 2 sleeved on the outer surface of the gas pipe 1, two electrofusion wires 3 fixedly connected to the inner surface of the electrofusion fitting body 2, the two electrofusion wires 3 being symmetrically arranged front and back, two sealing rings 4 fixedly connected to the inner surface of the electrofusion fitting body 2, the two sealing rings 4 being respectively located on the front and back sides of the two electrofusion wires 3, two wiring terminals 5 fixedly connected to the upper side of the outer surface of the electrofusion fitting body 2, and two observation pins 6 provided on the upper side of the outer surface of the electrofusion fitting body 2, the electrofusion wires 3, wiring terminals 5, and other components are also included. The connection between terminal 5 and observation pin 6 is an existing structure, so it will not be explained in detail. The outer surface of the electrofusion fitting body 2 is provided with an installation ring groove 7. Several limiting slots 8 are provided on the front and rear walls of the installation ring groove 7. The several limiting slots 8 are arranged in a ring array. There are two snap-fit ​​mechanisms inside the installation ring groove 7. The connection structure of the two snap-fit ​​mechanisms is the same and they are arranged symmetrically on the left and right. The following description focuses on the left snap-fit ​​mechanism. The snap-fit ​​mechanism includes a striking block 9, two sliding grooves 10, two sliding blocks 11, several limiting rods 12, four springs 13, four control grooves 14 and four control rods 15.

[0031] Furthermore, the striking block 9 is disposed inside the mounting ring groove 7, and two sliding grooves 10 are both formed inside the striking block 9. The two sliding grooves 10 are arranged front to back, and two sliding blocks 11 are slidably connected inside the two sliding grooves 10 respectively. A plurality of limiting rods 12 are fixedly connected to the opposite sides of the two sliding blocks 11, and the plurality of limiting rods 12 are arranged in a circular array. The opposite ends of the plurality of limiting rods 12 all slide out of the striking block 9. The limiting rods 12 are adapted to the limiting slots 8, and four springs 13 are fixedly connected to the opposite surfaces of the two sliding blocks 11 respectively. The opposite ends are fixedly connected to the inner walls of the two sliding grooves 10 respectively. The four springs 13 are respectively arranged vertically. The four control grooves 14 are all opened on the outer surface of the striking block 9. The four control grooves 14 are arranged in a rectangular array. The interior of the two front control grooves 14 is connected to the interior of the front sliding groove 10. The interior of the two rear control grooves 14 is connected to the interior of the rear sliding groove 10. The four control rods 15 are fixedly connected to the outer surface of the two sliding blocks 11 respectively. The four control rods 15 extend out of the striking block 9 through the four control grooves 14 respectively. The four springs 13 are respectively arranged near the four control rods 15.

[0032] When starting work, first, the electrofusion fitting body 2 is fitted onto the outer surface of the gas pipe 1. When it is necessary to move the electrofusion fitting body 2, the operator moves the two front control rods 15 and the two rear control rods 15 toward the opposite side. Then, the four control rods 15 drive the two sliding blocks 11 to move toward the opposite side simultaneously. The sliding blocks 11 then drive the limit rod 12 to move simultaneously. The limit rod 12 moves into the sliding groove 10, at which point the spring 13 begins to compress. Then, the striking block 9 is installed into the installation ring groove 7. After installation, the control rods 15 are released, and the spring 13 begins to return from the compressed state, pushing the sliding block 11 to return simultaneously. The sliding block 11 drives the limit rod 12 to return simultaneously, and the limit rod 12 moves into the limit slot 8 to form a locking state. Then, the right striking block 9 is also installed into the installation ring groove 7 in the same way. Then, the operator can use a tool to strike the two striking blocks 9, and the two striking blocks 9 will drive the electrofusion fitting body 2 to move simultaneously.

[0033] After the electrofusion fitting body 2 is installed, the gas pipe 1 and the electrofusion fitting body 2 can be electrofused through the two terminals 5. The progress of the electrofusion can be observed through the two observation pins 6. Then, the two striking blocks 9 can be removed to use the remaining electrofusion fitting bodies 2. At the same time, because the four springs 13 are respectively fixedly connected to the opposite surfaces of the two sliding blocks 11, and the opposite ends of the four springs 13 are respectively fixedly connected to the inner walls of the two sliding grooves 10, the four springs 13 are respectively arranged vertically, and the four springs 13 are respectively located near the four control levers 15, so that the springs 13 will be subjected to The spring 13 is compressed under uniform pressure, so it will not tilt when compressed, thus ensuring that the sliding block 11 will not tilt when it moves. This also ensures the synchronicity of the movement of the limit rods 12, so that the engagement and disengagement of all limit rods 12 with the limit slots 8 can be performed simultaneously. In this way, a detachable striking block 9 can be set on the electrofusion fitting body 2, so that when installing the electrofusion fitting body 2, the operator can move the electrofusion fitting body 2 on the gas pipe 1 by striking the block 9, which makes it convenient for the operator to install the electrofusion fitting body 2 on the gas pipe 1.

[0034] Working principle: At the start of operation, the electrofusion fitting body 2 is first fitted onto the outer surface of the gas pipe 1. When movement of the electrofusion fitting body 2 is required, the operator moves the two front control levers 15 and the two rear control levers 15 towards their opposite sides. This causes the four control levers 15 to simultaneously move the two sliding blocks 11 towards their opposite sides. The sliding blocks 11 then move the limiting rod 12 synchronously, causing it to move into the sliding groove 10. At this point, the spring 13 is compressed, thus... After the striking block 9 is installed inside the mounting ring groove 7, the control lever 15 is released, and the spring 13 begins to return from the compressed state, pushing the sliding block 11 to return synchronously. The sliding block 11 drives the limit rod 12 to return synchronously, and the limit rod 12 will move into the limit slot 8 to form a snap-fit ​​state. Then, the right striking block 9 is also installed inside the mounting ring groove 7 in the same way. Then, the operator can use a tool to strike the two striking blocks 9, and the two striking blocks 9 will drive the electrofusion fitting body 2 to move synchronously.

[0035] After the installation of the electrofusion fitting body 2 is completed, the gas pipe 1 and the electrofusion fitting body 2 can be electrofused through the two terminals 5. The progress of the electrofusion work can be observed through the two observation pins 6. Then, the two striking blocks 9 can be removed to use the remaining electrofusion fitting bodies 2. At the same time, because the four springs 13 are fixedly connected to the opposite surfaces of the two sliding blocks 11 respectively, and the opposite ends of the four springs 13 are fixedly connected to the inner walls of the two sliding grooves 10 respectively, the four springs 13 are respectively arranged vertically, and the four springs 13 are respectively located near the four control rods 15, so that the springs 13 will be compressed by uniform extrusion force, so that the springs 13 will not tilt when compressed, thus ensuring that the sliding blocks 11 will not tilt when moving, thus ensuring the synchronicity of the movement of the limit plugs 12, so that the engagement and disengagement of all limit plugs 12 with the limit slots 8 can be carried out simultaneously.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double leak-proof gas electrofusion fitting based on intelligent protection, comprising a gas pipe (1), an electrofusion fitting body (2) sleeved on the outer surface of the gas pipe (1), and an installation annular groove (7) opened on the outer surface of the electrofusion fitting body (2); The front and rear walls of the mounting ring groove (7) are provided with a plurality of limiting slots (8), which are arranged in a ring array. The feature is that: The mounting ring groove (7) is provided with two snap-fit ​​mechanisms inside. The two snap-fit ​​mechanisms have the same connection structure and are arranged symmetrically on the left and right. The locking mechanism includes a striking block (9), two sliding grooves (10), two sliding blocks (11), several limit rods (12), four springs (13), four control grooves (14) and four control rods (15).

2. The intelligent protection-based double-leakage-proof gas electrofusion fitting according to claim 1, characterized in that: Two electrofusion wires (3) are fixedly connected to the inner surface of the electrofusion fitting body (2), and the two electrofusion wires (3) are arranged symmetrically in front and behind. Two sealing rings (4) are fixedly connected to the inner surface of the electrofusion fitting body (2), and the two sealing rings (4) are respectively set on the front and rear sides of the two electrofusion wires (3); Two terminals (5) are fixedly connected to the upper side of the outer surface of the electrofusion fitting body (2), and two observation pins (6) are provided on the upper side of the outer surface of the electrofusion fitting body (2).

3. A double-leakage-proof gas electrofusion fitting based on intelligent protection according to claim 1, characterized in that: The striking block (9) is set inside the mounting ring groove (7), and the two sliding grooves (10) are both opened inside the striking block (9), with the two sliding grooves (10) arranged in a front-to-back manner; Two sliding blocks (11) are slidably connected inside two sliding grooves (10), and several limiting rods (12) are fixedly connected to the two sliding blocks (11) on opposite sides.

4. A double-leakage-proof gas electrofusion fitting based on intelligent protection according to claim 3, characterized in that: A plurality of the limiting rods (12) are arranged in a circular array, and a striking block (9) is slidably extended from the relatively far ends of the plurality of limiting rods (12); The limiting rod (12) is adapted to the limiting slot (8), and four springs (13) are fixedly connected to the opposite surfaces of the two sliding blocks (11), and the opposite ends of the four springs (13) are fixedly connected to the inner walls of the two sliding grooves (10).

5. A dual-leakage-proof gas electrofusion fitting based on intelligent protection according to claim 4, characterized in that: The four springs (13) are respectively arranged vertically, and the four control slots (14) are all opened on the outer surface of the striking block (9); The four control slots (14) are arranged in a rectangular array, and the interior of the two front control slots (14) is connected to the interior of the front sliding slot (10).

6. A double-leakage-proof gas electrofusion fitting based on intelligent protection according to claim 5, characterized in that: The interior of the two control slots (14) on the rear side is connected to the interior of the sliding slot (10) on the rear side, and the four control rods (15) are respectively fixedly connected to the outer surfaces of the two sliding blocks (11); Four control levers (15) extend into striking blocks (9) through four control slots (14), and four springs (13) are respectively set near the four control levers (15).

Images