Anti-deformation double-P radiant tube

By employing clamp-structured locking, fitting, and protective components on the double-P radiant tube, the problem of time-consuming sequential tightening of support fasteners was solved, enabling rapid assembly and disassembly and improving work efficiency.

CN223985604UActive Publication Date: 2026-03-10JIANGSU KINUO FURNACE ROLLER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing double P-type radiant tube requires tightening bolts and nuts one turn at a time when assembling support fasteners, resulting in low work efficiency and complex support connection structure, which affects installation efficiency.

Method used

It adopts a clamp structure, including a pressure locking component, a fitting component, and a protective component. The clamp's connecting plate and movable rod and other components enable quick locking and disassembly, simplifying the operation process.

Benefits of technology

This improves the efficiency of assembling and disassembling double-P radiant tubes, reduces the workload of workers, and enhances practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of double-P radiant tubes, in particular to an anti-deformation double-P radiant tube which comprises a tube body, a plurality of sets of hoops are in lap joint with the outer wall of the tube body, each hoop comprises two sets of first connecting plates, the opposite ends of the two sets of first connecting plates are hinged to each other, and the opposite ends of the two sets of first connecting plates are hinged to each other. The other ends of the two first connecting plates are clamped through a connecting mechanism, the connecting mechanism comprises a pressing and locking assembly, an attaching assembly and a protection assembly, the pressing and locking assembly is used for locking and connecting the two first connecting plates to the outer wall of the pipe body, and the attaching assembly is used for being matched with the pressing and locking assembly to conduct disassembly and assembly operation. The protection assembly is used for protecting an operation part of the press lock assembly; the device is simple in structure and convenient to operate, a worker can conveniently and rapidly assemble the hoop and the supporting plate, separation and maintenance are more convenient, the labor amount of the worker is reduced, the disassembly and assembly efficiency is improved, and the practicability is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of double-P radiant tube technology, specifically to a deformation-resistant double-P radiant tube. Background Technology

[0002] A radiant tube is a pipe that extends in a straight line from the center in all directions. Double-P type radiant tubes are superior to ordinary radiant tubes in performance. Radiant tubes are widely used in heating furnaces and are the main heating elements. Radiant tubes can generally be divided into two categories: gas-fired radiant tubes and electric heating radiant tubes. However, in existing technologies, radiant tubes are prone to collisions with external objects during transportation and installation, which can easily cause bending deformation or even damage. Furthermore, the support connection between the radiant tube and the base is too weak, making it prone to breakage at the connection end. The auxiliary support structures are generally too complex to install, affecting assembly efficiency. Therefore, a deformation-resistant double-P type radiant tube is proposed.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN216977573U discloses a deformation-resistant double-P type radiant tube, comprising a connecting end, a connecting pipe fixedly connected to the middle of the bottom surface of the connecting end, a tube body fixedly connected to the bottom end of the connecting pipe, a support fastener movably fastened to the front of the tube body, and a fitting ring movably sleeved at both the left and right ends of the top of the front of the tube body, a support column fixedly installed on the top surface of the fitting ring, and spring cavities opened at both the left and right ends of the front of the inner cavity of the connecting end, with a locking mechanism fixedly installed inside the spring cavity.

[0004] While the aforementioned existing technical solution makes the tube body more stable after being connected to the connection end, thereby improving the practicality of the radiant tube, the support fasteners require workers to tighten the bolts and nuts on their surface during assembly. Tightening each set of bolts by turning them around one by one is time-consuming, which in turn affects the work efficiency of workers in assembling and using the tube. Utility Model Content

[0005] The purpose of this utility model is to provide a deformation-resistant double-P radiant tube to solve the problem mentioned in the background art that when assembling support fasteners on a double-P radiant tube, workers need to tighten the bolts and nuts on its surface, which is time-consuming and affects the efficiency of workers in assembly and use.

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

[0007] A deformation-resistant double-P radiant tube includes a tube body. Multiple sets of clamps overlap the outer wall of the tube body. Each clamp includes two sets of first connecting plates. One end of each set of first connecting plates is hinged to the other end, and the other end is engaged via a connecting mechanism. The connecting mechanism includes a locking assembly, a fitting assembly, and a protective assembly. The locking assembly locks the two sets of first connecting plates to the outer wall of the tube body. The fitting assembly cooperates with the locking assembly for disassembly and assembly operations. The protective assembly protects the operating components of the locking assembly.

[0008] As a preferred embodiment of this utility model, the bonding assembly includes a liner plate installed on one end of the outer wall of one set of first connecting plates. The top of the liner plate has a smooth groove, and a smooth block is slidably connected to the inside of the smooth groove. The smooth block and the smooth groove have a T-shaped cross-section. A bonding plate is installed on the other end of the smooth block. A mating block is installed on one side of the bonding plate, and a rubber pad is installed on one side of the bonding plate. A mating hole is opened inside the rubber pad, and the mating hole fits into the outer wall of the mating block. A sliding pressure seat is installed on the other end of another set of first connecting plates. A mating groove is opened on one side of the sliding pressure seat, which is slidably connected to the mating block. A sliding pressure groove is opened inside the sliding pressure seat on one side of the mating groove. The bottom surface of the sliding pressure seat is higher than the top surface of the liner plate.

[0009] As a preferred embodiment of this utility model, the pressure locking assembly includes a movable rod rotatably connected to one end of the inner side of the sliding groove. A splicing block is sleeved on the outer side of the movable rod. The opposing surfaces of the splicing block and the mating block are both provided with inclined surfaces. A fixing groove is provided inside the splicing block on one side of the inclined surface. An anti-deviation spring is installed between the fixing groove and the inner wall of the sliding groove. The other end of the anti-deviation spring is fixedly connected to the inner wall of the sliding groove.

[0010] As a preferred embodiment of this utility model, the interior of the assembly block has a sliding groove on its inclined surface, a sliding rod is rotatably connected to the inside of the sliding groove, a sliding plate is installed on the outside of the sliding rod, a slope surface that fits against the inclined surface is opened on one side of the sliding plate, a torsion spring is installed on one end of the sliding rod, an abutment groove is opened on the outer wall of the mating block on its inclined surface, a limit plate is installed on the other end of the assembly block, a limit groove that slides with the limit plate is opened on the inner wall of the sliding groove, an operating groove is opened on one side of the sliding seat, a torsion ring is installed on one end of the movable rod that extends to the inside of the operating groove, and the center of the limit groove corresponds to the center of the movable rod.

[0011] As a preferred embodiment of this utility model, the protective component includes a protective groove formed on the top of the sliding base, the inner side of the protective groove is connected to the inner side of the operating groove, a protective plate is slidably connected to the inner side of the protective groove, the length of the protective plate is smaller than the length of the protective groove, and a support plate is installed between two adjacent sets of clamps.

[0012] As a preferred embodiment of this utility model, a drag groove is provided on one side of the protective plate, a first fixing member is embedded in one end of the protective plate, a second fixing member corresponding to the first fixing member is embedded in the inner wall of the protective groove, a synchronization groove is provided on both sides of the inner wall of the protective groove, and a synchronization block that is slidably connected to the synchronization groove is installed on the outer wall of the protective plate.

[0013] In a preferred embodiment of this utility model, one of the first fixing member and the second fixing member is a first magnet, and the other of the first fixing member and the second fixing member is a second magnet. The magnetic poles of the first magnet and the second magnet are opposite and attract each other.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this utility model, the two sets of first connecting plates are locked to the outer wall of the pipe body by locking components. The fitting components work with the pressure locking components for disassembly and assembly. The protection components protect the operating parts of the pressure locking components. The structure is simple and easy to operate, which makes it easy for workers to quickly assemble the clamps and support plates. Separation and maintenance are also more convenient, reducing the workload of workers, improving disassembly and assembly efficiency, and further increasing practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the clamp of this utility model;

[0018] Figure 3 This is a partial three-dimensional structural diagram of the sliding pressure seat of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the sliding pressure seat of this utility model.

[0020] In the diagram: 1. Pipe body; 2. Clamp; 3. First connecting plate; 4. Smooth block; 5. Liner; 6. Adhesive plate; 7. Butt joint block; 8. Movable rod; 9. Rubber pad; 10. Sliding seat; 11. Assembly block; 12. Torsion ring; 13. Anti-deviation spring; 14. Retraction rod; 15. Retraction plate; 16. First fixing component; 17. Torsion spring; 18. Limiting plate; 19. Protective plate; 20. Synchronous groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-4 This utility model provides a technical solution:

[0023] A deformation-resistant double-P radiant tube includes a tube body 1. Multiple sets of clamps 2 overlap the outer wall of the tube body 1. Each clamp 2 includes two sets of first connecting plates 3. One end of each set of first connecting plates 3 is hinged to the other end, and the other end is engaged via a connecting mechanism. The connecting mechanism includes a locking assembly, a fitting assembly, and a protective assembly. The locking assembly locks the two sets of first connecting plates 3 to the outer wall of the tube body 1. The fitting assembly assists the locking assembly in disassembly and assembly operations. The protective assembly protects the operating parts of the locking assembly. In use, the locking assembly locks the two sets of first connecting plates 3 to the outer wall of the tube body 1. The fitting assembly assists the locking assembly in disassembly and assembly operations. The protective assembly protects the operating parts of the locking assembly. The device has a simple structure and is easy to operate, facilitating quick assembly of the clamps 2 and support plates. Separation and maintenance are also more convenient, reducing the workload of workers, improving disassembly and assembly efficiency, and further increasing practicality.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the bonding assembly includes a liner 5 installed on one end of the outer wall of one set of first connecting plates 3. A smooth groove is formed on the top of the liner 5, and a smooth block 4 is slidably connected inside the smooth groove. The smooth block 4 and the smooth groove have a T-shaped cross-section. A bonding plate 6 is installed on the other end of the smooth block 4. A mating block 7 is installed on one side of the bonding plate 6, and a rubber pad 9 is installed on another side of the bonding plate 6. A mating hole is formed inside the rubber pad 9, and the mating hole fits against the outer wall of the mating block 7. The other end of the other set of first connecting plates 3... A sliding pressure seat 10 is installed at the end. A docking groove is opened on one side of the sliding pressure seat 10 to slide and connect with the docking block 7. A sliding pressure groove is opened inside the sliding pressure seat 10 on one side of the docking groove. The bottom surface of the sliding pressure seat 10 is higher than the top surface of the liner plate 5. First, each set of clamps 2 can be put on the pipe body 1. Then, the inner walls of the two sets of first connecting plates 3 are attached to the outer wall of the pipe body 1. At this time, the liner plate 5 is located below the sliding pressure seat 10. When the two sets of first connecting plates 3 are closed, the movement of the liner plate 5 will not be blocked.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the pressure-locking assembly includes a movable rod 8 rotatably connected to one end of the inner side of the sliding groove. A splicing block 11 is sleeved on the outer side of the movable rod 8. Both the splicing block 11 and the mating block 7 have inclined surfaces on their opposing faces. A fixing groove is formed on one side of the inclined surface inside the splicing block 11. An anti-deviation spring 13 is installed between the fixing groove and the inner wall of the sliding groove. The other end of the anti-deviation spring 13 is fixedly connected to the inner wall of the sliding groove. A retraction groove is formed on the inclined surface inside the splicing block 11. A retraction rod 14 is rotatably connected to the inner side of the retraction groove. A retraction plate 15 is installed on the outer side of the retraction rod 14. A slope that fits against the inclined surface is formed on one side of the retraction plate 15. A torsion spring 17 is installed on one end of the retraction rod 14. An abutment groove is formed on the outer wall of the mating block 7 on its inclined surface. A limit plate 18 is installed on the other end of the splicing block 11. A limit groove that slides with the limit plate 18 is formed on the inner wall of the sliding groove. One side of the sliding seat 10... An operating groove is provided on the side. A torsion ring 12 is installed at one end of the movable rod 8 that extends to the inside of the operating groove. The center of the limiting groove corresponds to the center of the movable rod 8. Then, by pushing the bonding plate 6 in conjunction with the smooth groove and the flat slider 4, the docking block 7 can be driven to slide into the inside of the docking groove. At this time, the rubber pad 9 is squeezed back. The bonding plate 6 is squeezed to make the docking block 7 and the splicing block 11 partially contact each other. The opposite inclined surfaces can make the splicing block 11 and the movable rod 8 rotate and deflect. At the same time, the anti-deviation spring 13 is also stretched. After the inclined surface on the docking block 7 contacts the slope on the retraction plate 15, it forces the retraction plate 15 to retract to the inside of the retraction groove. After it is aligned with the abutment groove, the torsion spring 17 rebounds and drives the retraction plate 15 to unfold inside the abutment groove. The rubber pad 9 is still in a compressed state. Then, the bonding plate 6 is released, and the rubber pad 9 rebounds a distance and the retraction plate 15 abuts against the inner wall of the abutment groove, thus completing the combination with the tube body 1.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the protective assembly includes a protective groove on the top of the sliding base 10. The inner side of the protective groove is connected to the inner side of the operating groove. A protective plate 19 is slidably connected to the inner side of the protective groove. The length of the protective plate 19 is smaller than the length of the protective groove. Support plates are installed between the two adjacent sets of clamps 2. Furthermore, when the pipe body 1 or clamp 2 needs to be inspected and maintained, the rotating torsion ring 12, in conjunction with the limiting plate 18 and the limiting groove, drives the movable rod 8 to rotate, allowing the splicing block 11 to actively stretch the anti-deviation spring 13. The retraction plate 15 can then disengage from the abutment groove. At this time, the two sets of first connecting plates 3 can be unfolded to separate the clamp 2 and the pipe body 1 for maintenance and inspection.

[0027] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, a drag groove is provided on one side of the protective plate 19, and a first fixing member 16 is embedded in one end of the protective plate 19. A second fixing member corresponding to the first fixing member 16 is embedded in the inner wall of the protective groove. Synchronization grooves 20 are provided on both sides of the inner wall of the protective groove. A synchronization block that is slidably connected to the synchronization groove 20 is installed on the outer wall of the protective plate 19. One of the first fixing member 16 and the second fixing member is a first magnet, and the other of the first fixing member 16 and the second fixing member is a second magnet. The magnetic poles of the first magnet and the second magnet are opposite and attract each other. Furthermore, after the tube body 1 and the clamp 2 are combined, the drag groove can be fastened to coordinate with the synchronization groove 20 and the synchronization block to drive the protective plate 19 to move stably. The first fixing member 16 on the protective plate 19 can be attracted to the second fixing member, thereby protecting the torsion ring 12 inside the operating groove and preventing accidental contact that could cause the connection to loosen.

[0028] The implementation principle of the anti-deformation double P radiant tube in this application embodiment is as follows: First, each set of clamps 2 can be fitted onto the tube body 1. Then, the inner walls of the two sets of first connecting plates 3 are attached to the outer wall of the tube body 1. At this time, the liner 5 is located below the sliding seat 10. When the two sets of first connecting plates 3 are closed, the movement of the liner 5 will not be obstructed. Then, pushing the bonding plate 6 in conjunction with the smooth groove and the flat slider 4 can drive the mating block 7 to slide into the inner side of the mating groove. At this time, the rubber pad 9 is squeezed back. Continuing to squeeze the bonding plate 6 causes the mating block 7 and the splicing block 11 to partially contact each other. The opposing inclined surfaces can cause the splicing block 11 and the movable rod 8 to rotate and shift. At the same time, the anti-deviation spring 13 is also stretched. After the inclined surface on the mating block 7 contacts the slope on the retraction plate 15, it forces the retraction plate 15 to retract to the inner side of the retraction groove. After it aligns with the abutment groove, the torsion spring 17 rebounds, driving the retraction plate 15 to abut. When the inner side of the groove is unfolded, the rubber pad 9 is still compressed. Then, the bonding plate 6 is released, and the rubber pad 9 rebounds a distance. The retraction plate 15 abuts against the inner wall of the groove, thus completing the combination with the pipe body 1. When the pipe body 1 or the clamp 2 needs to be inspected and maintained, the rotating torsion ring 12, in conjunction with the limiting plate 18 and the limiting groove, drives the movable rod 8 to rotate, allowing the splicing block 11 to actively stretch the anti-deviation spring 13. The retraction plate 15 can then be disengaged from the groove. At this time, the two sets of first connecting plates 3 can be unfolded to separate the clamp 2 and the pipe body 1 for maintenance and inspection. After the pipe body 1 and the clamp 2 are combined, the drag groove can be fastened in conjunction with the synchronous groove 20 and the synchronous block to drive the protective plate 19 to move stably. The first fixing part 16 on the protective plate 19 can be attracted to the second fixing part, thereby protecting the torsion ring 12 inside the operating groove and preventing accidental contact that could cause the connection to loosen.

[0029] 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 distortion-proof double-P radiation tube comprising a tube body (1), characterized in that: The outer wall of the pipe body (1) is overlapped with multiple groups of clamps (2), the clamps (2) include two groups of first connecting plates (3), one end of the two groups of first connecting plates (3) is hinged to each other, and the other end of the two groups of first connecting plates (3) is clamped through a connecting mechanism, the connecting mechanism includes a press lock assembly, a fitting assembly and a protection assembly, the press lock assembly is used for locking the two groups of first connecting plates (3) to be locked to the outer wall of the pipe body (1), the fitting assembly is used for cooperating with the press lock assembly to perform disassembly operation, and the protection assembly is used for protecting the operating part of the press lock assembly.

2. The anti-deformation double-P radiation tube according to claim 1, characterized in that: The fitting assembly includes a lining plate (5) mounted at one end of one group of first connecting plates (3), a smooth groove is formed in the top of the lining plate (5), a smooth block (4) is slidably connected to the inner side of the smooth groove, the cross section of the smooth block (4) and the smooth groove is T-shaped, a fitting plate (6) is mounted at the other end of the smooth block (4), a butt joint block (7) is mounted on one side of the fitting plate (6), a rubber pad (9) is mounted on one side of the fitting plate (6), a butt joint hole is formed in the rubber pad (9), the butt joint hole is fitted to the outer wall of the butt joint block (7), and a slide pressure seat (10) is mounted at the other end of the other group of first connecting plates (3), a butt joint groove is formed in one side of the slide pressure seat (10) and slidably connected with the butt joint block (7), a slide pressure groove is formed in the inner side of the slide pressure seat (10) and located at one side of the butt joint groove, and the bottom surface of the slide pressure seat (10) is higher than the top surface of the lining plate (5).

3. The anti-deformation double-P radiation tube according to claim 2, characterized in that: The press lock assembly includes a movable rod (8) rotatably connected to one end of the inner side of the slide pressure groove, a split block (11) is sleeved on the outer side of the movable rod (8), and the opposite surfaces of the split block (11) and the butt joint block (7) are provided with inclined surfaces, a fixing groove is formed in the inner side of the split block (11) and located at one side of the inclined surface, and a deviation preventing spring (13) is mounted between the inner wall of the fixing groove and the slide pressure groove.

4. The anti-deformation double-P radiation tube according to claim 3, characterized in that: A shrinkage groove is formed in the inner side of the split block (11) and located at the inclined surface, a shrinkage rod (14) is rotatably connected to the inner side of the shrinkage groove, a shrinkage plate (15) is mounted on the outer side of the shrinkage rod (14), an inclined surface is formed in one side of the shrinkage plate (15) and matched with the inclined surface, a torsional spring (17) is mounted on one end of the shrinkage rod (14), an abutting groove is formed in the outer wall of the butt joint block (7) and located at the inclined surface, a limiting plate (18) is mounted at the other end of the split block (11), a limiting groove is formed in the inner wall of the slide pressure groove and slidably connected with the limiting plate (18), an operation groove is formed in one side of the slide pressure seat (10), a torsional ring (12) is mounted at one end of the movable rod (8) extending to the inner side of the operation groove, and the center of the limiting groove corresponds to the center of the movable rod (8).

5. A distortion-proof double-P radiation tube according to claim 4, characterized in that: The protection assembly comprises a protection groove formed in the top of the sliding pressure seat (10), the inner side of the protection groove is communicated with the inner side of the operation groove, a protection plate (19) is slidably connected to the inner side of the protection groove, the length of the protection plate (19) is smaller than the length of the protection groove, and a supporting plate is arranged between two adjacent groups of the clamps (2).

6. A distortion-proof double-P radiation tube according to claim 5, characterized in that: One side of the protection plate (19) is provided with a pulling groove, one end of the protection plate (19) is embeddedly provided with a first fixing member (16), the inner wall of the protection groove is embeddedly provided with a second fixing member corresponding to the first fixing member (16), the two sides of the inner wall of the protection groove are provided with synchronous grooves (20), and the outer wall of the protection plate (19) is provided with synchronous blocks slidably connected with the synchronous grooves (20).

7. A distortion-proof double-P radiation tube according to claim 6, characterized in that: One of the first fixing member (16) and the second fixing member is a first magnet, the other one is a second magnet, the magnetic poles of the first magnet and the second magnet are opposite and attract each other.

Citation Information

Patent Citations

  • Anti-deformation double-P-type radiant tube

    CN216977573U