Explosion-proof sealing joint flexible pipe

Abstract

The utility model discloses an explosion-proof sealing joint flexible pipe, which relates to the technical field of flexible pipes, and comprises a flexible pipe main body, a protective assembly is arranged outside the flexible pipe main body, the protective assembly comprises a connecting threaded pipe, an adjusting sleeve is arranged outside the connecting threaded pipe, and a protective sleeve is arranged on the outer wall of the adjusting sleeve. An ejection lug plate is arranged at the top of the protective sleeve, a rubber sealing ring is arranged at the top of the ejection lug plate, and a supporting spring is arranged in the middle of the rubber sealing ring. According to the flexible pipe, the joints at the two ends of the flexible pipe body are protected through the arranged protection assembly, the arranged adjusting sleeve rotates outside the connecting threaded pipe, the adjusting sleeve adjusts the position of the protection sleeve, and therefore the protection sleeve and the ejection lug plate extrude the rubber sealing ring; the rubber sealing ring is arranged on the protective sleeve, so that the rubber sealing ring realizes sealed connection of the protective sleeve and the equipment joint, the interior of the protective sleeve is isolated from the outside, the joint is protected, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of flexible tube technology, and in particular to a flexible tube with an explosion-proof sealing joint. Background Technology

[0002] Currently in chemical production, when installing instruments and electrical equipment, cables require three main protective components: cable trays, galvanized conduits, and flexible conduits, to connect the control room or power distribution room to the instruments and electrical equipment on the production site. Due to the flexibility of flexible conduits, a large amount of piping work can be reduced during equipment cable installation, and therefore they are widely used in the chemical industry.

[0003] The patent CN218378223U mentions a stainless steel explosion-proof sealing flexible tube. This patent includes a connector, a first connector, an adapter, and a second connector. All components are made of stainless steel. The two first connectors are female, while the two second connectors are male, and their threads are opposite in direction. During use, simply rotating the adapter allows both second connectors to simultaneously engage with the two first connectors, improving ease of use. However, this patent also has the following problems.

[0004] After the connector is installed with the equipment, the protection effect at the connection between the connector and the equipment is not ideal. After long-term use, the connector is prone to aging, which affects the subsequent testing and disassembly. Therefore, it is necessary to provide an explosion-proof sealing connector flexible tube to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an explosion-proof sealing joint flexible tube, which achieves protection of the joint through protective components and extends the service life of the joint.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] According to a first aspect of the present invention, a flexible tube body is included, and a protective component is disposed on the outside of the flexible tube body;

[0008] The flexible tube body includes an inner tube, an outer heat-resistant layer, an outer explosion-proof layer, and an outer reinforced outer tube. A connecting seat is located at the top of the outer reinforced outer tube, and a connecting sleeve is located at the top of the connecting seat. A threaded pipe is located in the middle of the connecting sleeve, a rotating seat is located at the top of the threaded pipe, and a transfer pipe is located at the top of the rotating seat. A sealing ring is located on the outside of the transfer pipe, and a limiting seat is located inside the connecting sleeve, with a sealing rubber sleeve located at the top of the limiting seat.

[0009] Furthermore, a heat-resistant layer is installed on the outside of the inner tube, and an explosion-proof layer is installed on the outside of the heat-resistant layer. A reinforcing outer tube is fixedly connected to the outside of the explosion-proof layer. The top end of the reinforcing outer tube is connected to the connecting seat. The inner tube, heat-resistant layer, explosion-proof layer and reinforcing outer tube are all inserted into the middle of the connecting seat. The heat-resistant layer, explosion-proof layer and reinforcing outer tube are used to strengthen the protection of the inner tube and increase the service life of the flexible tube body.

[0010] Furthermore, a connecting sleeve is fixedly connected to the top of the connecting seat, and the inner wall of the connecting sleeve is provided with threads. A limiting seat is fixedly connected to the inner wall of the connecting sleeve near the connecting seat, and the limiting seat is arranged in a ring shape. A sealing sleeve is snapped into the top of the limiting seat, and the sealing sleeve is arranged in an L shape. The side wall of the sealing sleeve is inserted into the middle of the limiting seat, and one side of the top of the sealing sleeve is in contact with the inner wall of the connecting sleeve. The two connecting seats and two connecting sleeves facilitate the connection between the device and the equipment, and the sealing sleeve is arranged in an L shape and connected to the top of the limiting seat, which improves the sealing effect at the connection between the connecting sleeve and the threaded pipe.

[0011] Furthermore, there are two connecting sleeves, symmetrically distributed at both ends of the flexible tube body. One of the connecting sleeves is threadedly connected to a mating threaded tube in the middle. The bottom of the mating threaded tube contacts the top of the sealing sleeve, and a rotating seat is fixedly connected to the top of the mating threaded tube. An adapter tube is fixedly connected to the top of the rotating seat. Both the adapter tube and the mating threaded tube have threads on their outer walls. A sealing ring is fitted on the outside of the adapter tube. The adapter tube, the mating threaded tube, and the rotating seat are interconnected. The rotating seat connects the mating threaded tube and the adapter tube, thereby facilitating the connection between the flexible tube body and the equipment and improving the ease of use of the device.

[0012] Furthermore, there are two protective sleeves, which are respectively distributed at both ends of the flexible tube body, and the two protective sleeves are respectively set to correspond to different joints at both ends of the flexible tube body. The protective sleeves and adjusting sleeves are both sleeved on the outside of the reinforcing outer tube. By setting the two protective sleeves to correspond to the joints at both ends of the flexible tube body, the protection effect on the joints is improved.

[0013] According to a second aspect of the present invention, the protective component includes a connecting threaded pipe, an adjusting sleeve is provided on the outside of the connecting threaded pipe, and a protective sleeve is provided on the outer wall of the adjusting sleeve. The top of the protective sleeve is provided with an ejector plate, and the top of the ejector plate is provided with a rubber sealing ring. A support spring is provided in the middle of the rubber sealing ring.

[0014] Furthermore, a connecting threaded tube is fixedly connected to the bottom of the connecting seat, and the connecting threaded tube is sleeved on the outside of the reinforcing outer tube. There are two connecting seats, which are respectively set to correspond to the two ends of the reinforcing outer tube, and the reinforcing outer tube is set to correspond to the connecting seat. An adjusting sleeve is sleeved on the outside of the connecting threaded tube. The connecting threaded tube connects to the adjusting sleeve. The adjusting sleeve is located at the rotation point outside the connecting threaded tube, thereby realizing the adjustment of the position of the adjusting sleeve.

[0015] Furthermore, an anti-slip groove is provided on the bottom outer wall of the adjusting sleeve, and the anti-slip groove is distributed in an arc shape on the bottom outer wall of the adjusting sleeve. A protective sleeve is fixedly connected to the top outer wall of the adjusting sleeve, and the protective sleeve is sleeved on the outside of the flexible tube body. An ejector plate is fixedly connected to the top of the protective sleeve. The anti-slip groove on the outer wall of the adjusting sleeve improves the friction of the adjusting sleeve, facilitates the rotation of the adjusting sleeve, and the position of the protective sleeve is adjusted by moving the adjusting sleeve along the connecting threaded tube.

[0016] Furthermore, a rubber sealing ring is installed on the top of the ejector ear plate, and an anti-slip groove is formed on the top of the rubber sealing ring. A compression chamber is formed in the middle of the rubber sealing ring, and a support spring is installed in the middle of the compression chamber. There are multiple support springs, which are evenly distributed inside the compression chamber. The top and bottom of the support springs are fixedly connected to the top and bottom inner walls of the compression chamber, respectively. During the movement of the ejector ear plate, the rubber sealing ring is compressed, so that the rubber sealing ring fits tightly with the equipment, thereby isolating the inside of the protective sleeve from the outside world, achieving anti-slip of the joint, and improving the compression effect and service life of the rubber sealing ring through the compression chamber and support springs.

[0017] The present invention has the following advantages:

[0018] 1. The protective components protect the joints at both ends of the flexible tube body. The adjusting sleeve rotates outside the connecting threaded tube to adjust the position of the protective sleeve. This allows the protective sleeve and the ejector plate to compress the rubber sealing ring, ensuring a sealed connection between the protective sleeve and the equipment. This isolates the inside of the protective sleeve from the outside environment, protecting the joint. The structure is simple and easy to operate. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a first-person perspective perspective view of the entire device of this utility model;

[0022] Figure 2 This is a second-view perspective perspective view of the entire device of this utility model;

[0023] Figure 3 This is a schematic diagram of the unfolded structure of the flexible tube body of this utility model;

[0024] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a cross-sectional structural diagram of the protective component of this utility model;

[0026] Figure 6 This is a utility model Figure 5 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Flexible tube body; 2. Inner tube; 3. Heat-resistant layer; 4. Explosion-proof layer; 5. Reinforced outer tube; 6. Connecting seat; 7. Connecting sleeve; 8. Butt threaded tube; 9. Rotating seat; 10. Adaptor tube; 11. Sealing ring; 12. Limiting seat; 13. Sealing sleeve; 14. Protective component; 15. Connecting threaded tube; 16. Adjusting sleeve; 17. Anti-slip groove; 18. Protective sleeve; 19. Ejector ear plate; 20. Rubber sealing ring; 21. Anti-slip groove; 22. Extrusion chamber; 23. Support spring. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an explosion-proof sealing joint flexible tube includes a flexible tube body 1, and a protective component 14 is provided on the outside of the flexible tube body 1.

[0030] The flexible tube body 1 includes an inner tube 2, an outer heat-resistant layer 3, an outer explosion-proof layer 4, an outer reinforcing tube 5, a connecting seat 6 at the top of the outer reinforcing tube 5, a connecting sleeve 7 at the top of the connecting seat 6, a threaded pipe 8 in the middle of the connecting sleeve 7, a rotating seat 9 at the top of the threaded pipe 8, a transfer pipe 10 at the top of the rotating seat 9, a sealing ring 11 on the outside of the transfer pipe 10, a limiting seat 12 inside the connecting sleeve 7, a sealing rubber sleeve 13 at the top of the limiting seat 12, an outer heat-resistant layer 3 installed on the outside of the inner tube 2, an outer explosion-proof layer 4 installed on the outside of the heat-resistant layer 3, and an outer reinforcing tube 5 fixedly connected to the outside of the explosion-proof layer 4. The top of the outer reinforcing tube 5 is connected to the connecting seat 6, and the inner tube 2, the heat-resistant layer 3, the explosion-proof layer 4, and the outer reinforcing tube 5 are all inserted into the middle of the connecting seat 6.

[0031] A connecting sleeve 7 is fixedly connected to the top of the connecting seat 6, and the inner wall of the connecting sleeve 7 is threaded. A limiting seat 12 is fixedly connected to the inner wall of the connecting sleeve 7 near the connecting seat 6, and the limiting seat 12 is annularly arranged. A sealing sleeve 13 is snapped into the top of the limiting seat 12, and the sealing sleeve 13 is L-shaped. The side wall of the sealing sleeve 13 is inserted into the middle of the limiting seat 12, and one side of the top of the sealing sleeve 13 is in contact with the inner wall of the connecting sleeve 7. There are two connecting sleeves 7, which are symmetrically arranged. The flexible tube body 1 is arranged at both ends, and one of the connecting sleeves 7 is connected to a threaded tube 8 in the middle by a thread. The bottom of the threaded tube 8 contacts the top of the sealing sleeve 13, and a rotating seat 9 is fixedly connected to the top of the threaded tube 8. A transfer tube 10 is fixedly connected to the top of the rotating seat 9. Threads are provided on the outer walls of both the transfer tube 10 and the threaded tube 8. A sealing ring 11 is fitted on the outside of the transfer tube 10, and the transfer tube 10, the threaded tube 8 and the rotating seat 9 are interconnected.

[0032] There are two protective sleeves 18, which are respectively distributed at both ends of the flexible tube body 1. The two protective sleeves 18 are respectively set with different joints at both ends of the flexible tube body 1. The protective sleeves 18 and the adjusting sleeves 16 are both sleeved on the outside of the reinforcing outer tube 5.

[0033] Please see Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, the protective assembly 14 includes a connecting threaded tube 15, an adjusting sleeve 16 is provided on the outside of the connecting threaded tube 15, and a protective sleeve 18 is provided on the outer wall of the adjusting sleeve 16. An ejector plate 19 is provided on the top of the protective sleeve 18, and a rubber sealing ring 20 is provided on the top of the ejector plate 19. A support spring 23 is provided in the middle of the rubber sealing ring 20. The connecting seat 6 is fixedly connected to the bottom of the connecting threaded tube 15, and the connecting threaded tube 15 is sleeved on the outside of the reinforcing outer tube 5. The connecting seat 6 has... Two, respectively, are set at both ends of the reinforcing outer tube 5, and the reinforcing outer tube 5 is set at the corresponding end of the connecting seat 6. An adjusting sleeve 16 is sleeved on the outside of the connecting threaded tube 15. An anti-slip groove 17 is opened on the bottom outer wall of the adjusting sleeve 16, and the anti-slip groove 17 is distributed in an arc shape on the bottom outer wall of the adjusting sleeve 16. A protective sleeve 18 is fixedly connected to the top outer wall of the adjusting sleeve 16, and the protective sleeve 18 is sleeved on the outside of the flexible tube body 1. An ejector ear plate 19 is fixedly connected to the top of the protective sleeve 18.

[0034] A rubber sealing ring 20 is installed on the top of the ejector ear plate 19, and an anti-slip groove 21 is provided on the top of the rubber sealing ring 20. A compression chamber 22 is provided in the middle of the rubber sealing ring 20, and a support spring 23 is installed in the middle of the compression chamber 22. There are multiple support springs 23, which are evenly distributed inside the compression chamber 22. The top and bottom of the support springs 23 are fixedly connected to the top and bottom inner walls of the compression chamber 22, respectively. The protective component 14 is provided to protect the joints at both ends of the flexible tube body 1. The adjusting sleeve 16 is rotated outside the connecting threaded tube 15 to adjust the position of the protective sleeve 18. This allows the protective sleeve 18 and the ejector ear plate 19 to compress the rubber sealing ring 20, so that the rubber sealing ring 20 can seal the connection between the protective sleeve 18 and the equipment. This isolates the inside of the protective sleeve 18 from the outside world and protects the joint. The structure is simple and easy to operate.

[0035] It should be noted that this utility model is an explosion-proof sealing joint flexible tube. In use, the threaded pipe 8 is aligned with the connecting sleeve 7 at one end of the flexible tube body 1. The rotating seat 9 is rotated, causing the threaded pipe 8 to connect with the connecting sleeve 7 along the threads on the inner wall of the connecting sleeve 7. The other end of the flexible tube body 1 is then installed in the desired position. The adapter pipe 10 is then connected to the equipment. The sealing rubber sleeve 13 and sealing ring 11 improve the sealing at the connection. The adjusting sleeve 16 and protective sleeve 18 outside the flexible tube body 1 are then pushed to the outside of the connecting threaded pipe 15. The adjusting sleeve 16 is rotated, causing it to connect along the connecting threads. The threads on the outer wall of the tube 15 are rotated, and the adjusting sleeve 16 is connected to the connecting threaded tube 15 through the threads. As the adjusting sleeve 16 rotates, it pushes the protective sleeve 18. The protective sleeve 18 drives the ejector plate 19 to compress the rubber sealing ring 20, so that the rubber sealing ring 20 is in close contact with the connector at one end of the joint. This separates the inside and outside of the protective sleeve 18 and protects the joint. During the compression process, the rubber sealing ring 20 also compresses the support spring 23 inside the compression chamber 22. When disassembling, the support spring 23 pops out of the compression chamber 22, extending the service life of the rubber sealing ring 20.

[0036] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An explosion-proof joint flexible pipe comprising a flexible pipe body (1) characterised in that: The outer part of the flexible pipe body (1) is provided with a protection assembly (14); The flexible pipe body (1) comprises an inner pipe (2), the outer part of the inner pipe (2) is provided with a heat-resistant layer (3), the outer part of the heat-resistant layer (3) is provided with an explosion-proof layer (4), the outer part of the explosion-proof layer (4) is provided with a reinforced outer pipe (5), the top end of the reinforced outer pipe (5) is provided with a connecting seat (6), the top part of the connecting seat (6) is provided with a connecting sleeve (7), the middle part of the connecting sleeve (7) is provided with a butt joint threaded pipe (8), the top part of the butt joint threaded pipe (8) is provided with a rotating seat (9), the top part of the rotating seat (9) is provided with a adapter pipe (10), the outer part of the adapter pipe (10) is provided with a sealing ring (11), the inner part of the connecting sleeve (7) is provided with a limiting seat (12), and the top part of the limiting seat (12) is provided with a sealing rubber sleeve (13). The protection assembly (14) comprises a connecting threaded pipe (15), the outer part of the connecting threaded pipe (15) is provided with an adjusting sleeve (16), the outer wall of the adjusting sleeve (16) is provided with a protection sleeve (18), the top part of the protection sleeve (18) is provided with an ejection lug (19), the top part of the ejection lug (19) is provided with a rubber sealing ring (20), and the middle part of the rubber sealing ring (20) is provided with a supporting spring (23).

2. A flexible conduit for an explosion-proof joint according to claim 1, characterized in that: The bottom part of the connecting seat (6) is fixedly connected with the connecting threaded pipe (15), the connecting threaded pipe (15) is sleeved on the outer part of the reinforced outer pipe (5), the connecting seat (6) has two, which are correspondingly arranged at the two ends of the reinforced outer pipe (5), and the reinforced outer pipe (5) is correspondingly arranged with the connecting seat (6), and the outer part of the connecting threaded pipe (15) is sleeved with the adjusting sleeve (16).

3. The exproof joint flexible pipe of claim 2, wherein: The bottom outer wall of the adjusting sleeve (16) is provided with anti-skid grooves (17), and the anti-skid grooves (17) are arranged in an arc shape on the bottom outer wall of the adjusting sleeve (16), the top outer wall of the adjusting sleeve (16) is fixedly connected with the protection sleeve (18), and the protection sleeve (18) is sleeved on the outer part of the flexible pipe body (1), and the top part of the protection sleeve (18) is fixedly connected with the ejection lug (19).

4. The exproof joint flexible pipe of claim 3, wherein: The top part of the ejection lug (19) is provided with a rubber sealing ring (20), the top part of the rubber sealing ring (20) is provided with an anti-skid groove (21), the middle part of the rubber sealing ring (20) is provided with an extrusion cavity (22), and the middle part of the extrusion cavity (22) is provided with a supporting spring (23), the supporting spring (23) has a plurality of, which are evenly distributed in the inner part of the extrusion cavity (22), and the top part and the bottom part of the supporting spring (23) are fixedly connected with the top inner wall and the bottom inner wall of the extrusion cavity (22), respectively.

5. The explosion-proof sealed joint flexible pipe of claim 1, wherein: The outer part of the inner pipe (2) is provided with a heat-resistant layer (3), and the outer part of the heat-resistant layer (3) is provided with an explosion-proof layer (4), the outer part of the explosion-proof layer (4) is fixedly connected with the reinforced outer pipe (5), the top end of the reinforced outer pipe (5) is connected with the connecting seat (6), and the inner pipe (2), the heat-resistant layer (3), the explosion-proof layer (4) and the reinforced outer pipe (5) are all inserted in the middle of the connecting seat (6).

6. The exproof joint flexible pipe of claim 5, wherein: The top of the connecting seat (6) is fixedly connected with a connecting sleeve (7), and the inner wall of the connecting sleeve (7) is provided with threads; one end of the connecting sleeve (7) near the connecting seat (6) is fixedly connected with a limiting seat (12) arranged in an annular shape; the top of the limiting seat (12) is clamped with a sealing rubber sleeve (13) arranged in an L shape; the side wall of the sealing rubber sleeve (13) is inserted into the middle of the limiting seat (12), and the top side of the sealing rubber sleeve (13) is in contact with the inner wall of the connecting sleeve (7).

7. The exproof joint flexible pipe of claim 6, wherein: The connecting sleeve (7) has two, which are symmetrically distributed at both ends of the flexible pipe body (1), and the middle of one of the connecting sleeves (7) is threadedly connected with a butt joint threaded pipe (8); the bottom of the butt joint threaded pipe (8) is in contact with the top of the sealing rubber sleeve (13); the top of the butt joint threaded pipe (8) is fixedly connected with a rotating seat (9); the top of the rotating seat (9) is fixedly connected with an adapter pipe (10); the outer wall of the adapter pipe (10) and the butt joint threaded pipe (8) are both provided with threads; the outer part of the adapter pipe (10) is sleeved with a sealing ring (11); the adapter pipe (10), the butt joint threaded pipe (8) and the rotating seat (9) are in communication with each other.

8. The explosion-proof sealed joint flexible pipe of claim 1, wherein: The protective sleeve (18) has two, which are oppositely distributed at both ends of the flexible pipe body (1), and the two protective sleeves (18) are respectively arranged corresponding to different joints at both ends of the flexible pipe body (1); the protective sleeve (18) and the adjusting sleeve (16) are both sleeved outside the reinforced outer pipe (5).

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