Compression-resistant and explosion-proof straight-through joint

Abstract

The utility model discloses an anti-pressure explosion-proof straight joint, which comprises a joint body, connecting sleeves, connecting pipe fittings, an anti-loose assembly, a circular clamp, a fastening bolt and an anti-pressure assembly, internal threads are arranged in the two ends of the joint body, and the two ends of the joint body are provided with the connecting sleeves through the internal threads; internal threads are arranged on one sides of the interiors of the connecting sleeves, connecting pipe fittings are installed on one sides of the interiors of the connecting sleeves through the internal threads, anti-loosening assemblies are arranged on the exteriors of the connecting pipe fittings, each anti-loosening assembly comprises a circular clamp and a fastening bolt, and the inner side faces of the circular clamps make contact with the outer walls of the connecting pipe fittings in an attached mode. According to the connector, the connection firmness between the connector and a connecting pipe can be improved, meanwhile, the compression resistance of the connector is improved by arranging the compression resistance assembly, and then the service life of the structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of straight-through joints, in particular to the technical field of a pressure-resistant and explosion-proof straight-through joint. Background Art

[0002] A straight-through joint is a pipe connector that is usually used to connect two pipes of different diameters. It can also connect two ordinary pipes within the nominal pressure range, or connect special pipe materials under certain temperature and pressure conditions. It is widely used in industrial production and civil construction and plays an important role.

[0003] After long-term use, various external factors may cause the joint gland and the joint pipe to become loose, thereby affecting the transportation function of the pipeline.

[0004] In order to solve the problems raised in the background technology, for example, application number CN201420837895.X discloses an anti-loosening pipe joint, comprising a joint pipe and a gland, the gland is sleeved on the joint pipe, the gland and the joint pipe are detachably connected by a thread, a second sealing ring, an elastic snap ring, a snap ring seat and a first sealing ring are sequentially arranged between the gland and the joint pipe, the lower end of the outer wall of the gland is further provided with at least two protrusions, the thickness of the protrusion is half the thickness of the side wall of the gland, the upper end of the protrusion is formed into a sloped surface, and a hexagon socket screw is screwed into the center of the protrusion, the hexagon socket screw passes through the gland and abuts against the outer wall of the joint pipe, since a protrusion is provided on the outer wall of the gland and a hexagon socket screw is provided in the protrusion, the hexagon socket screw abuts against the pipe joint, so the gland can effectively prevent the gland from loosening with the joint pipe after long-term use, but this structure still has the following defects:

[0005] Although the structure is provided with a protrusion so that the hexagonal screw inside the protrusion presses against the pipe joint to prevent loosening, the sealing performance of the structure is insufficient, and thus when the joint is used in a flammable and explosive environment, it is inevitable that flammable and explosive gases from the outside will enter, causing the gas to accumulate in the joint and reach the critical value of combustion and explosion, thereby creating a safety hazard and endangering personal and property safety.

[0006] In order to solve the problems raised in the above-mentioned technology, for example, application number CN201720644551.0 discloses an explosion-proof pipe joint, which consists of a male end and a female end. The tubular male end and the female end are coaxially fixedly connected by a nut, and the outer wall of the male end is provided with an external thread, and the inner wall of the female end is provided with an internal thread; an elastic cuff is fixed on the outer side of each of the male end and the female end, and the elastic cuff is made of rubber. The diameter of one end of the elastic cuff connected to the male end and the female end is larger than the diameter of the other end. The elastic cuff structure is adopted, which not only has the sealing performance of an ordinary explosion-proof pipe joint, but also the elastic cuff further wraps and isolates to prevent external flammable and explosive gases from entering the explosion-proof pipe. It has a long service life and effectively reduces safety hazards, thereby ensuring personal and property safety. However, this structure still has the following defects:

[0007] 1. Although the elastic cuff structure can provide sealing performance for the joint, it is easy to cause the pipe joint and the connecting pipe to fall off due to external vibration factors during long-term use, thereby affecting the sealing performance of the joint;

[0008] 2. The structure lacks a compressive structure, which makes the joint easily damaged by external compression during use, thereby reducing its service life. Summary of the Invention

[0009] The purpose of this utility model is to solve the problems in the existing technology and propose a pressure-resistant and explosion-proof straight-through joint, which can increase the connection firmness between the joint and the connecting pipe. At the same time, the provision of a pressure-resistant component improves the pressure resistance of the joint, thereby extending the service life of the structure.

[0010] To achieve the above-mentioned objectives, the utility model proposes a pressure-resistant and explosion-proof straight-through joint, comprising a joint body, a connecting sleeve, a connecting pipe fitting, an anti-loosening component, a circular clamp, a fastening bolt, and a pressure-resistant component. Internal threads are provided at both ends of the joint body, and connecting sleeves are installed at both ends of the joint body through internal threads. An internal thread is provided on one side of the connecting sleeve, and a connecting pipe fitting is installed on one side of the connecting sleeve through internal threads. An anti-loosening component is provided on the outside of the connecting pipe fitting, and the anti-loosening component includes a circular clamp and a fastening bolt. The inner side surface of the circular clamp is in contact with the outer wall of the connecting pipe fitting, and the circular clamp locks the connecting pipe fitting through the fastening bolt. A pressure-resistant component is provided on the outside of the joint body.

[0011] Preferably, a threaded hole is provided above one side of the connecting sleeve, a locking bolt is threadedly installed in the threaded hole, and the circular clamp is screwed into the threaded hole through the locking bolt to be connected to the connecting sleeve.

[0012] Preferably, a sealing ring is embedded in one side of the connecting sleeve, and the sealing ring is used to be sleeved on the outside of the connecting pipe.

[0013] Preferably, a non-slip rubber pad is fixedly provided on the inner side surface of the circular clamp, and the non-slip rubber pad fits tightly with the outer wall of the connecting pipe.

[0014] Preferably, the pressure-resistant component includes a reinforcing column and a pressure-resistant sleeve. There are several reinforcing columns, which are annular and evenly spaced outside the joint body. The length of the reinforcing column is equal to the length of the joint body, and the pressure-resistant sleeve is installed outside the reinforcing column.

[0015] Preferably, the reinforcement column and the compression sleeve are respectively a carbon fiber reinforcement column and a carbon fiber compression sleeve.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model can increase the connection firmness between the joint and the connecting pipe by cooperating with the anti-loosening component and the sealing ring. First, the connecting pipe is screwed into the connecting sleeve and connected to the joint body. Since the sealing ring is embedded in the interior of the connecting sleeve, when the connecting pipe is screwed into the connecting sleeve, the sealing ring will seal the gap between the connecting pipe and the connecting sleeve. Then, the locking bolt is passed through the top of the circular clamp and screwed into the threaded hole on the connecting sleeve to complete the locking connection between the circular clamp and the connecting sleeve. Then, the circular clamp is squeezed to both sides of the connecting pipe. The circular clamp is pressed so that it can fit tightly with the connecting pipe, and then the connecting pipe is locked by tightening the bolts, thereby fixing the connecting pipe, which can prevent the connecting pipe from falling off from the joint body after long-term use. At the same time, a non-slip rubber pad is fixedly provided on the inner side of the circular clamp, thereby increasing the friction and fit between the connecting pipes, ensuring the anti-falling effect and cooperating with the sealing ring to achieve a more effective sealing effect, solving the problem of the pipe joint and the connecting pipe easily falling off due to external vibration factors during long-term use;

[0018] 2. The utility model can improve the pressure resistance of the joint by setting a pressure-resistant component. When the joint body is squeezed by the outside world, the reinforcing column and the pressure-resistant sleeve can support the joint body, thereby protecting the joint body from being easily squeezed and damaged, thereby extending the service life of the structure. At the same time, the reinforcing column and the pressure-resistant sleeve are made of carbon fiber reinforcing column and carbon fiber pressure-resistant sleeve, so that the pressure-resistant component can play a pressure-resistant effect for a long time and is not easy to be damaged. The problem of lack of pressure-resistant structure makes the joint easily squeezed and damaged during use is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a pressure-resistant and explosion-proof straight-through connector of the utility model;

[0020] Figure 2 This is a schematic diagram of an anti-loosening component of a pressure-resistant and explosion-proof straight-through joint of the utility model;

[0021] Figure 3 This is an exploded view of a pressure-resistant and explosion-proof straight-through connector of the utility model;

[0022] Figure 4 This is a schematic diagram of a pressure-resistant component of a pressure-resistant and explosion-proof straight-through connector of the utility model;

[0023] In the figure: 1-connector body, 2-connecting sleeve, 3-connecting pipe fitting, 4-anti-loosening component, 41-circular clamp, 411-anti-slip rubber pad, 42-fastening bolt, 5-pressure-resistant component, 51-reinforcement column, 52-pressure-resistant sleeve, 6-locking bolt, 7-sealing ring. DETAILED DESCRIPTION

[0024] See Figures 1 to 4 The utility model is a pressure-resistant and explosion-proof straight-through joint, including a joint body 1, a connecting sleeve 2, a connecting pipe fitting 3, an anti-loosening component 4, a circular clamp 41, a fastening bolt 42, and an anti-pressure component 5. Both ends of the joint body 1 are provided with internal threads, and both ends of the joint body 1 are installed with connecting sleeves 2 through internal threads. The internal side of the connecting sleeve 2 is provided with internal threads, and the internal side of the connecting sleeve 2 is provided with a connecting pipe fitting 3 through internal threads. The outside of the connecting pipe fitting 3 is provided with an anti-loosening component 4, and the anti-loosening component 4 includes a circular clamp 41 and a fastening bolt 42. The inner side of the circular clamp 41 is in contact with the outer wall of the connecting pipe fitting 3, and the circular clamp 41 locks the connecting pipe fitting 3 through the fastening bolt 42. The outside of the joint body 1 is provided with an anti-pressure component 5.

[0025] See Figure 2 and Figure 3 The utility model is a pressure-resistant and explosion-proof straight-through joint. A threaded hole is provided above one side of the connecting sleeve 2. A locking bolt 6 is installed in the threaded hole. The circular clamp 41 is screwed into the threaded hole through the locking bolt 6 and connected to the connecting sleeve 2. By providing the locking bolt 6, the circular clamp 41 can be connected and fixed to the connecting sleeve 2.

[0026] See Figure 3 The utility model is a pressure-resistant and explosion-proof straight-through joint. A sealing ring 7 is embedded in one side of the connecting sleeve 2. The sealing ring 7 is used to be sleeved on the outside of the connecting pipe 3. By setting the sealing ring 7, the gap between the connecting pipe 3 and the connecting sleeve 2 will be sealed, thereby improving the sealing performance.

[0027] See Figure 2 The utility model is a pressure-resistant and explosion-proof straight-through joint. The inner side of the circular clamp 41 is fixedly provided with a non-slip rubber pad 411. The non-slip rubber pad 411 fits tightly with the outer wall of the connecting pipe 3. By providing the non-slip rubber pad 411, the friction and fit between the connecting pipe 3 are increased, ensuring the anti-slip effect while cooperating with the sealing ring 7 to achieve a more effective sealing effect.

[0028] See Figure 4 The utility model provides a pressure-resistant and explosion-proof straight-through joint, the pressure-resistant component 5 includes a reinforcing column 51 and a pressure-resistant sleeve 52. The number of the reinforcing columns 51 is several, and the reinforcing columns 51 are annular and evenly spaced on the outside of the joint body 1. The length of the reinforcing column 51 is equal to the length of the joint body 1, and the pressure-resistant sleeve 52 is installed on the outside of the reinforcing column 51. The reinforcing column 51 and the pressure-resistant sleeve 52 are carbon fiber reinforcing columns and carbon fiber pressure-resistant sleeves respectively. By setting the pressure-resistant component 5, the pressure resistance of the joint can be improved. When the joint body 1 is squeezed by the outside, the reinforcing column 51 and the pressure-resistant sleeve 52 can support the joint body 1, thereby protecting the joint body 1 from damage due to squeezing, thereby extending the service life of the structure. At the same time, the reinforcing column 51 and the pressure-resistant sleeve 52 are carbon fiber reinforcing columns and carbon fiber pressure-resistant sleeves, so that the pressure-resistant component 5 can play a pressure-resistant effect for a long time and is not prone to damage.

[0029] Working process of this utility model:

[0030] The utility model is a pressure-resistant and explosion-proof straight-through joint. During operation, the connecting pipe 3 is first screwed into the connecting sleeve 2 and connected to the joint body 1. Since a sealing ring 7 is embedded in the interior of the connecting sleeve 2, when the connecting pipe 3 is screwed into the connecting sleeve 2, the sealing ring 7 will seal the gap between the connecting pipe 3 and the connecting sleeve 2. Then, the locking bolt 6 is passed through the top of the circular clamp 41 and screwed into the threaded hole on the connecting sleeve 2, thereby completing the locking connection between the circular clamp 41 and the connecting sleeve 2, and then the circular clamp is tightened. 41 is squeezed toward both sides of the connecting pipe 3, so that the circular clamp 41 can fit tightly against the connecting pipe 3, and then the connecting pipe 3 is locked by tightening the bolts 42, thereby fixing the connecting pipe 3, and preventing the connecting pipe 3 from falling off from the joint body 1 after long-term use. At the same time, a non-slip rubber pad 411 is fixedly provided on the inner side of the circular clamp 41, thereby increasing the friction and fit between the connecting pipe 3, ensuring the anti-falling effect while cooperating with the sealing ring to achieve a more effective sealing effect.

[0031] By setting up the pressure-resistant component 5, the pressure-resistant performance of the joint can be improved. When the joint body 1 is squeezed by the outside world, the reinforcing column 51 and the pressure-resistant sleeve 52 can support the joint body 1, thereby protecting the joint body 1 from being easily squeezed and damaged, thereby extending the service life of the structure. At the same time, the reinforcing column 51 and the pressure-resistant sleeve 52 are made of carbon fiber reinforcing columns and carbon fiber pressure-resistant sleeves, so that the pressure-resistant component 5 can play a pressure-resistant effect for a long time and is not easily damaged.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A pressure-resistant and explosion-proof straight-through connector, characterized by: The invention comprises a joint body (1), a connecting sleeve (2), a connecting pipe (3), an anti-loosening component (4), a circular clamp (41), a fastening bolt (42), and a pressure-resistant component (5), wherein both ends of the joint body (1) are provided with internal threads, and both ends of the joint body (1) are provided with connecting sleeves (2) through internal threads, an internal side of the connecting sleeve (2) is provided with internal threads, and a connecting pipe (3) is installed on the internal side of the connecting sleeve (2) through internal threads, and an anti-loosening component (4) is provided on the outside of the connecting pipe (3), and the anti-loosening component (4) comprises a circular clamp (41) and a fastening bolt (42), the inner side surface of the circular clamp (41) is in contact with the outer wall of the connecting pipe (3), and the circular clamp (41) locks the connecting pipe (3) through the fastening bolt (42), and the pressure-resistant component (5) is provided on the outside of the joint body (1).

2. A pressure-resistant and explosion-proof straight-through connector according to claim 1, characterized in that: A threaded hole is provided above one side of the connecting sleeve (2), a locking bolt (6) is threadedly installed in the threaded hole, and the circular clamp (41) is screwed into the threaded hole through the locking bolt (6) to be connected to the connecting sleeve (2).

3. The pressure-resistant and explosion-proof straight-through connector according to claim 1, characterized in that: A sealing ring (7) is embedded in one side of the connecting sleeve (2), and the sealing ring (7) is used to be sleeved on the outside of the connecting pipe (3).

4. The pressure-resistant and explosion-proof straight-through connector according to claim 1, characterized in that: An anti-skid rubber pad (411) is fixedly provided on the inner side surface of the circular clamp (41), and the anti-skid rubber pad (411) is tightly fitted to the outer wall of the connecting pipe (3).

5. The pressure-resistant and explosion-proof straight-through connector according to claim 1, characterized in that: The pressure-resistant assembly (5) includes a reinforcing column (51) and a pressure-resistant sleeve (52). There are a plurality of reinforcing columns (51). The reinforcing columns (51) are annular and are evenly spaced outside the joint body (1). The length of the reinforcing column (51) is equal to the length of the joint body (1). The pressure-resistant sleeve (52) is installed outside the reinforcing column (51).

6. The pressure-resistant and explosion-proof straight-through connector according to claim 5, characterized in that: The reinforcement column (51) and the compression sleeve (52) are respectively a carbon fiber reinforcement column and a carbon fiber compression sleeve.

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