A pluggable explosion-proof connector

Abstract

The utility model provides a pluggable explosion-proof joint, which relates to the technical field of explosion-proof joints, including a first joint and a second joint, wherein a first threaded ring is fixed on one side of the middle of the outer wall of the first joint, the outer wall of the first threaded ring is threadedly connected to a limiting ring, a first external thread is provided on one side of the first joint, and a connecting ring is rotatably connected to one end of the outer wall of the second joint. The device drives the position of the extrusion ring to change by rotating the second threaded ring on the outer wall of the second external thread, and the extrusion ring moves to extrude the extrusion rod. The closer the smaller diameter side of the extrusion ring is to the extrusion rod, the closer the bottom ends of the four extrusion rods are, and the limiting rods move toward the middle at this time, and the limiting rods are hung on the outer wall of the limiting ring. By rotating the limiting ring on the outer wall of the first threaded ring, the top of the limiting ring is tightly fitted with one side of the four limiting rods, thereby achieving multi-directional simultaneous limiting, a tighter connection, and a better connection effect when a large impact force occurs inside.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof joints, and more specifically, particularly relates to a pluggable explosion-proof joint. Background Art

[0002] Explosion-proof joints are made of copper alloy and brass nickel-plated. They are suitable for oil refining and petrochemical industries. Due to the good thermal conductivity of copper and high-quality stainless steel and the fact that they contain almost no carbon, the heat generated in a short period of time when the joints rub or collide with objects is absorbed and conducted. Another reason is that copper and stainless steel are relatively soft, and have good yield during friction and collision, and are not easy to produce tiny metal particles, so we can hardly see sparks, thus achieving an explosion-proof effect.

[0003] The existing publication number CN219263488U discloses a pluggable explosion-proof joint. Although it is equipped with a telescopic mechanism to adjust the connection length of the explosion-proof joint, the length of the explosion-proof joint can be adjusted. When the distance between the two connected objects is too large, the length of one end of the explosion-proof joint can be adjusted to connect the two connected objects, thereby avoiding the need for the staff to re-need an explosion-proof joint of appropriate length, thereby improving the work efficiency of the staff.

[0004] Based on the above, the inventors found that the following problems exist: However, the modified explosion-proof head connects the first connecting ring and the second connecting ring through a limit block and a fixed block, and is only connected on one side of the first connecting ring and the second connecting ring. When a large impact force occurs during long-term use, a gap is likely to appear on the other side due to the lack of a limit. At the same time, if multiple limit blocks and fixed blocks are used, it is inconvenient to connect and disassemble the limit blocks and the fixed blocks one by one.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a pluggable explosion-proof connector is provided, in order to achieve a more practical purpose. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a pluggable explosion-proof joint to solve the problem that the connection effect of the current single limit block and fixed block is poor, and multiple limit blocks and fixed blocks need to be connected and separated one by one, which is inconvenient to use.

[0007] The utility model provides a pluggable explosion-proof connector, which is achieved by the following specific technical means:

[0008] A pluggable explosion-proof joint comprises a first joint and a second joint, wherein a first threaded ring is fixed to one side of the middle portion of an outer wall of the first joint, the outer wall of the first threaded ring is threadedly connected to a limiting ring, a first external thread is provided on one side of the first joint, a connecting ring is rotatably connected to one end of the outer wall of the second joint, a second threaded ring is movably mounted on the outer wall of the connecting ring, an extrusion ring is fixed to one side of the second threaded ring close to the first joint, a connecting block is fixed to one end of the connecting ring close to the first joint, a connecting rod is rotatably connected to the middle portion of the connecting block, a limiting rod is fixed to the top end of the connecting rod, an extrusion rod is fixed to the bottom end of the connecting rod, and a spring is fixed to one side of the connecting rod.

[0009] Furthermore, the extrusion ring is arranged in a hollow truncated cone shape, and the diameter value of the extrusion ring on one side close to the second threaded ring is smaller than the diameter value of the other side of the extrusion ring.

[0010] Furthermore, the other end of the spring is fixed to the connecting ring, the extrusion rod and the connecting rod are arranged in an inclined state, the limiting rod is arranged in an L shape, the length of the spring is greater than the width of the connecting block, and the side of the connecting block away from the second joint is located in the same vertical plane as the outer wall of the limiting ring.

[0011] Furthermore, a second external thread is provided in the middle of the outer wall of the connecting ring, and a second internal thread is provided on the inner wall of the second threaded ring, and the second external thread and the second internal thread are used in combination.

[0012] Furthermore, the inner wall of the connecting ring located on one side of the outer wall of the second joint is provided with a first internal thread, and the first internal thread and the first external thread are used in combination.

[0013] Furthermore, a sealing ring is fixed to the inner wall of one end of the second joint, and a plurality of the sealing rings are provided, and the plurality of the sealing rings are arranged at equal intervals.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the position of the extrusion ring can be changed by rotating the second threaded ring on the outer wall of the second external thread, and the extrusion ring moves to extrude the extrusion rod. The closer the smaller diameter side of the extrusion ring is to the extrusion rod, the closer the bottom ends of the four extrusion rods are. At this time, the limit rods move toward the middle, and the limit rods are hung on the outer wall of the limit ring. The limit ring is rotated on the outer wall of the first threaded ring so that the top of the limit ring is tightly fitted with one side of the four limit rods, thereby achieving multi-directional limiting at the same time, a tighter connection, and a better connection effect when a large impact force occurs inside.

[0016] 2. In the utility model, the positions of the four limit rods can be controlled by rotating the second threaded ring and the limit ring. When disassembling, the limit ring and the second threaded ring are rotated in reverse to separate the first joint and the second joint, thereby achieving a quick connection. The two joints can be quickly connected and separated without affecting the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the second joint of the utility model.

[0019] Figure 3 It is a schematic diagram of the second joint splitting structure of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the limit rod of the utility model.

[0021] The corresponding relationship between the component names and the figure numbers in the figure is:

[0022] 1. First joint; 2. First external thread; 3. First thread ring; 4. Limiting ring; 5. Second joint; 6. Sealing ring; 7. Connecting ring; 71. Second external thread; 72. First internal thread; 8. Second thread ring; 81. Second internal thread; 9. Extrusion ring; 10. Connecting block; 11. Limiting rod; 12. Connecting rod; 13. Spring; 14. Extrusion rod. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, “plurality” means two or more; in addition, the terms “first”, “second”, “third”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 4 As shown:

[0027] The utility model provides a pluggable explosion-proof joint, comprising a first joint 1 and a second joint 5, a first threaded ring 3 is fixed on one side of the middle portion of the outer wall of the first joint 1, the outer wall of the first threaded ring 3 is threadedly connected with a limiting ring 4, a first external thread 2 is provided on one side of the first joint 1, a connecting ring 7 is rotatably connected at one end of the outer wall of the second joint 5, a second threaded ring 8 is movably installed on the outer wall of the connecting ring 7, an extrusion ring 9 is fixed to one side of the second threaded ring 8 close to the first joint 1, a connecting block 10 is fixed to one end of the connecting ring 7 close to the first joint 1, a connecting rod 12 is rotatably connected to the middle portion of the connecting block 10, a limiting rod 11 is fixed to the top end of the connecting rod 12, an extrusion rod 14 is fixed to the bottom end of the connecting rod 12, a spring 13 is fixed to one side of the connecting rod 12, and four connecting blocks 10, limiting rods 11, connecting rods 12, springs 13 and extrusion rods 14 are provided, and are arranged equidistantly on a circle.

[0028] Among them, the extrusion ring 9 is arranged in a hollow cone shape, and the diameter value of the extrusion ring 9 on the side close to the second threaded ring 8 is smaller than the diameter value of the other side of the extrusion ring 9. The extrusion rod 14 is extruded by moving the extrusion ring 9. The closer the smaller diameter side of the extrusion ring 9 is to the extrusion rod 14, the closer the bottom ends of the four extrusion rods 14 are.

[0029] Among them, the other end of the spring 13 is fixed to the connecting ring 7, the extrusion rod 14 and the connecting rod 12 are arranged in an inclined shape, the limit rod 11 is arranged in an L shape, the length value of the spring 13 is greater than the width value of the connecting block 10, and the side of the connecting block 10 away from the second joint 5 is located in the same vertical plane as the outer wall of the limit ring 4. When the extrusion ring 9 squeezes the extrusion rod 14, the top of the limit rod 11 expands outward, and the first connecting head 1 can be connected to the second connecting head 5 at this time. After the first connecting head 1 and the second connecting head 5 are connected, the extrusion ring 9 is separated from the extrusion rod 14, and the spring 13 pushes the extrusion rod 14 to expand outward. At this time, the limit rod 11 moves closer to the middle, and the limit rod 11 is hung on the outer wall of the limit ring 4. The limit ring 4 is rotated on the outer wall of the first threaded ring 3 so that the top of the limit ring 4 is tightly fitted with one side of the limit rod 11.

[0030] Among them, a second external thread 71 is opened in the middle of the outer wall of the connecting ring 7, and a second internal thread 81 is opened on the inner wall of the second threaded ring 8. The second external thread 71 and the second internal thread 81 are used in combination. By rotating the second threaded ring 8 on the outer wall of the second external thread 71, the position of the extrusion ring 9 can be changed, thereby changing the distance between the extrusion ring 9 and the extrusion rod 14.

[0031] Among them, the inner wall of the connecting ring 7 located on one side of the outer wall of the second joint 5 is provided with a first internal thread 72, and the first internal thread 72 and the first external thread 2 are used in combination. By aligning the first joint 1 and the second joint 2 and inserting them, and then rotating the first joint 1 and the second joint 5, the first internal thread 72 and the first external thread 2 are engaged, and the first joint 1 and the second joint 2 are connected.

[0032] Among them, a sealing ring 6 is fixed to the inner wall of one end of the second joint 5, and there are multiple sealing rings 6, which are arranged equidistantly. Through the provided sealing rings 6, after the second joint 5 is connected to the first joint 1, the interior can maintain sufficient sealing.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In the utility model, firstly, the second thread ring 8 is rotated on the outer wall of the second external thread 71, so that the position of the extrusion ring 9 can be changed, and the extrusion ring 9 moves to extrude the extrusion rod 14. The closer the smaller diameter side of the extrusion ring 9 is to the extrusion rod 14, the closer the bottom ends of the four extrusion rods 14 are. When the extrusion ring 9 extrudes the extrusion rod 14, the top end of the limit rod 11 expands outward. At this time, the first connector 1 can be connected to the second connector 5, and the first joint 1 and the second joint 2 are aligned and inserted. When the first joint 1 and the second joint 5 are rotated, the first internal thread 72 and the first external thread 2 are meshed, and the first joint 1 and The second joint 5 is connected, and the sealing ring 6 is set so that after the second joint 5 is connected to the first joint 1, the interior can maintain sufficient sealing. After the first connector 1 and the second connector 5 are connected, the extrusion ring 9 is separated from the extrusion rod 14, and the spring 13 pushes the extrusion rod 14 to expand outward. At this time, the limit rod 11 moves toward the middle, and the limit rod 11 is hung on the outer wall of the limit ring 4. The limit ring 4 is rotated on the outer wall of the first threaded ring 3 so that the top of the limit ring 4 is tightly fitted with one side of the four limit rods 11. When disassembling, rotate the limit ring 4 and the second threaded ring 8 in reverse to separate the first joint 1 and the second joint 5.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A pluggable explosion-proof connector, comprising a first connector (1) and a second connector (5), characterized in that: A first threaded ring (3) is fixed to one side of the middle of the outer wall of the first joint (1); the outer wall of the first threaded ring (3) is threadedly connected to a limiting ring (4); a first external thread (2) is provided on one side of the first joint (1); a connecting ring (7) is rotatably connected to one end of the outer wall of the second joint (5); a second threaded ring (8) is movably mounted on the outer wall of the connecting ring (7); an extrusion ring (9) is fixed to one side of the second threaded ring (8) close to the first joint (1); a connecting block (10) is fixed to one end of the connecting ring (7) close to the first joint (1); a connecting rod (12) is rotatably connected to the middle of the connecting block (10); a limiting rod (11) is fixed to the top end of the connecting rod (12); an extrusion rod (14) is fixed to the bottom end of the connecting rod (12); and a spring (13) is fixed to one side of the connecting rod (12).

2. A pluggable explosion-proof connector as claimed in claim 1, characterized in that: The extrusion ring (9) is arranged in a hollow truncated cone shape, and the diameter value of the extrusion ring (9) on one side close to the second threaded ring (8) is smaller than the diameter value of the other side of the extrusion ring (9).

3. The pluggable explosion-proof connector according to claim 1, characterized in that: The other end of the spring (13) is fixed to the connecting ring (7), the extrusion rod (14) and the connecting rod (12) are arranged in an inclined shape, the limiting rod (11) is arranged in an L shape, the length of the spring (13) is greater than the width of the connecting block (10), and the side of the connecting block (10) away from the second joint (5) is located in the same vertical plane as the outer wall of the limiting ring (4).

4. The pluggable explosion-proof connector according to claim 1, characterized in that: A second external thread (71) is provided in the middle of the outer wall of the connecting ring (7), and a second internal thread (81) is provided in the inner wall of the second threaded ring (8). The second external thread (71) and the second internal thread (81) are used in conjunction with each other.

5. The pluggable explosion-proof connector according to claim 1, characterized in that: The inner wall of the connecting ring (7) located on one side of the outer wall of the second joint (5) is provided with a first internal thread (72), and the first internal thread (72) and the first external thread (2) are used in conjunction with each other.

6. The pluggable explosion-proof connector according to claim 1, characterized in that: A sealing ring (6) is fixed to the inner wall of one end of the second joint (5), and a plurality of the sealing rings (6) are provided, and the plurality of the sealing rings (6) are arranged at equal distances.

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