Pipe penetrating and bonding equipment for fire hose production
The pipe end is fixed by a combination of nuts, screws and clamping plates. Combined with the design of pressure roller assembly and guide wheel, the problems of complex operation and unstable conveying of existing equipment are solved, and stable bonding and efficient production of fire hoses are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN MINSHAN FIRE HOSE CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-26
Smart Images

Figure CN224276260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire hose production technology, specifically a pipe-threading and bonding device for fire hose production. Background Technology
[0002] Fire hose production typically consists of fire hoses and fittings. The fittings are used to connect fire-fighting equipment to achieve water flow transportation and control. Therefore, pipe-threading and bonding equipment is needed to bond the fire hoses and fittings together to form a complete and sealed fire hose. Existing pipe-threading and bonding equipment places both ends of the fire hose to be bonded under a lifting gate, which seals the hose. High-temperature steam is then introduced for bonding. This device does not have sufficient sealing performance, and the high-temperature steam inside the hose may leak out, affecting the bonding efficiency and quality. In addition, the ends of the hose are flattened and deformed, affecting the subsequent installation of metal joints.
[0003] To overcome the aforementioned deficiencies, existing technology (Chinese patent application number: 202122700145.0, application date: 2021.11.05) discloses a high-temperature bonding device for manufacturing fire hoses, including a base, a support plate connected to the front end of the top of the base, a support connected to the rear end of the top of the base, a sleeve mechanism on the top of the support, a sealing mechanism between the support plates and above the sleeve mechanism, and a fixing mechanism on the top of the base and in front of the support. The sealing mechanism includes a fixing box, a cylinder, a connecting rod, a turntable, a sector gear, a rack, and a sealing clamp. The fixing box is connected between the support plates, and the cylinder is connected to the top of the fixing box. By setting the sealing mechanism, the interface of the fire hose is sealed, resulting in a good sealing effect. In addition, by setting the fixing mechanism, the end of the hose is fixed and further sealed, preventing the end of the hose from being flattened and deformed, and further improving the sealing performance.
[0004] Although existing technology can seal the joints of fire hoses, high-temperature bonding devices contain multiple components, such as splicing mechanisms, sealing mechanisms, and fixing mechanisms. The complex working relationship between these mechanisms increases the difficulty of operation and results in poor end-fixing. Consequently, the bonding of fire hoses and fittings through pipes is often incomplete, and the fire hoses cannot be stably transported and guided, leading to deviations and wrinkles.
[0005] Therefore, we have proposed a pipe-threading and bonding device for fire hose production that can effectively solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a pipe-threading and bonding device for the production of fire hoses, in order to solve the problems mentioned in the background art. The current high-temperature pipe-threading and bonding device contains multiple components, such as a connecting mechanism, a sealing mechanism, and a fixing mechanism. The working relationship between these mechanisms is complex, which increases the difficulty of operation and results in poor end-fixing effect. As a result, the pipe-threading and bonding of fire hoses and fittings is often incomplete, and the fire hose cannot be stably transported and guided, which can easily lead to problems such as deviation and wrinkles.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pipe-threading and bonding device for fire hose production, comprising a processing table, a pull-out box movably connected inside the processing table, an mounting plate fixedly installed on the top right side of the processing table, a servo motor body disposed on the right side of the mounting plate, and a limiting component for disassembly and assembly fixedly installed on the output shaft of the servo motor body via a coupling; the limiting component includes a mounting sleeve, a pipe end piece movably connected inside the mounting sleeve, and a fire hose body sleeved on the outer wall of the pipe end piece; a support plate fixedly installed at the rear of the processing table, a hydraulic cylinder body disposed on the top of the support plate, a pressure roller assembly fixedly installed at the output end of the hydraulic cylinder body, and a guiding conveying component bolted to the top of the processing table.
[0008] As a preferred technical solution of this application, the mounting sleeve has four grooves inside, each groove is movably connected to a screw, the outer wall of the screw is threaded with a nut, the outer wall of the screw is fitted with a compression spring, and the compression spring is located inside the groove, and the end of the screw is fixedly installed with a clamping plate.
[0009] As a preferred technical solution of this application, the conveying assembly includes a support frame, with lower guide wheels provided on the top of both sides of the support frame, and sliding grooves opened inside both sides of the support frame. A fixing rod is fixedly installed inside the sliding groove, a strong spring is sleeved on the outer wall of the fixing rod, and a connecting rod is sleeved on the outer wall of the fixing rod. An upper guide wheel is movably connected to the outer wall of the connecting rod.
[0010] As a preferred technical solution of this application, the nut and the screw are detachably connected, and the screw and the groove are movably connected. By manually moving the screw in sequence, the moving screw will drive the clamping plate to move in the groove until the clamping plate is attached to the pipe end.
[0011] As a preferred technical solution of this application, the clamping plate and the pipe head are movably connected, and the clamping plate is set as a semi-arc structure. The clamping plate and the groove are tightly fitted with the compression spring. The clamping plate is fixed in the position of fitting the pipe head by the threaded engagement of the nut and the screw, thereby fixing and installing the pipe head.
[0012] As a preferred technical solution of this application, the connecting rod and the fixed rod are movably connected, and the connecting rod and the slide are fixedly connected to the strong spring. By moving the connecting rod upward, the strong spring is compressed, generating a downward elastic force.
[0013] As a preferred technical solution of this application, the upper guide wheel and the connecting rod are rotatably connected, and the connecting rod and the slide groove are slidably connected. The upper guide wheel will drive the connecting rod to move upward. At this time, the connecting rod will overcome the elastic force of the strong spring and slide upward in the fixed rod and the slide groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This pipe-threading and bonding equipment for fire hose production, by setting nuts, screws, and clamping plates, facilitates the fixed installation of pipe ends of different sizes and specifications, providing a good foundation for subsequent pipe-threading and bonding operations. Furthermore, it is equipped with a pressure roller assembly, a servo motor body, and a mounting sleeve to facilitate comprehensive pipe-threading and bonding of fire hoses. Additionally, it features an upper guide wheel, a connecting rod, and a strong spring to ensure stable conveying and guiding of the fire hoses, preventing deviation and wrinkling. Specific details are as follows:
[0015] 1. A nut, screw, and clamping plate are provided. The clamping plate is fixed in the position of the fitting by the threaded engagement of the nut and screw, and the fitting is fixedly installed. This facilitates precise adjustment according to different sizes and specifications of fittings, and achieves stable and reliable fixed installation. This provides a good foundation for the subsequent pipe insertion and bonding operation. Then, the staff applies pipe insertion adhesive to the surface of the fitting.
[0016] Furthermore, a pressure roller assembly, a servo motor body, and an mounting sleeve are provided. The hydraulic cylinder body drives the pressure roller assembly to move downwards and press against the surface of the fire hose body. The servo motor body drives the mounting sleeve to rotate synchronously, keeping the pipe head fixed inside and the fire hose body to be bonded through the pipe. This keeps the pressure roller assembly in contact with the fire hose body, fully pressing and bonding the pipe head and the fire hose body through the pipe, ensuring that the adhesive is evenly distributed and making the bonding between the two through the pipe more secure.
[0017] 2. An upper guide wheel, connecting rod, and high-strength spring are installed. The upper guide wheel drives the connecting rod to move upward, and the high-strength spring is compressed to generate a downward elastic force. This allows the upper guide wheel to adjust with the movement of the fire hose body, reducing friction on the fire hose body and better guiding the movement direction of the fire hose body. This ensures the stability of the fire hose body during transportation and avoids deviation and wrinkling. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0019] Figure 2 This is a schematic diagram of a partial disassembly of the installation sleeve, pipe end fitting, and fire hose body of this utility model;
[0020] Figure 3 This is a partial cross-sectional structural diagram of the mounting sleeve of this utility model;
[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0022] Figure 5 This is a partial structural diagram of the support frame, lower guide wheel, and upper guide wheel of this utility model;
[0023] Figure 6 This is a partial cross-sectional structural diagram of the connecting rod and upper guide wheel of this utility model.
[0024] In the diagram: 1. Processing table; 2. Pull-out box; 3. Mounting plate; 4. Servo motor body; 5. Mounting sleeve; 6. Groove; 7. Screw; 8. Nut; 9. Compression spring; 10. Clamping plate; 11. Pipe end fitting; 12. Fire hose body; 13. Support plate; 14. Hydraulic cylinder body; 15. Pressure roller assembly; 16. Support frame; 17. Lower guide wheel; 18. Slide groove; 19. Fixing rod; 20. High-strength spring; 21. Connecting rod; 22. Upper guide wheel. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-6 The present invention provides the following technical solution:
[0027] Example 1: To address the problem of incomplete pipe bonding in commercially available high-temperature pipe-threading devices, which contain multiple components such as a connecting mechanism, sealing mechanism, and fixing mechanism, and whose complex inter-mechanical relationships increase operational difficulty and result in poor end-fixation, thus leading to incomplete pipe bonding of fire hoses and fittings, this example discloses a pipe-threading bonding device for fire hose production. The technical details are provided in the attached document. Figure 1 -Appendix Figure 4The system includes a processing table 1, with a pull-out box 2 internally connected to the processing table 1. A mounting plate 3 is fixedly installed on the top right side of the processing table 1. A servo motor body 4 is located on the right side of the mounting plate 3. The output shaft of the servo motor body 4 is fixedly mounted with a limiting assembly for disassembly and reassembly via a coupling. The limiting assembly includes a mounting sleeve 5, with a pipe end fitting 11 internally connected to the mounting sleeve 5. A fire hose body 12 is fitted onto the outer wall of the pipe end fitting 11. A support plate 13 is fixedly installed at the rear of the processing table 1. A hydraulic cylinder body 14 is located on the top of the support plate 13. A pressure roller assembly 15 is fixedly installed at the output end of the hydraulic cylinder body 14. The top of the platform 1 is bolted with a guiding conveying assembly; the mounting sleeve 5 has four grooves 6 inside, and a screw 7 is movably connected inside each groove 6. A nut 8 is threadedly connected to the outer wall of the screw 7, and a compression spring 9 is sleeved on the outer wall of the screw 7, with the compression spring 9 located inside the groove 6. A clamping plate 10 is fixedly installed at the end of the screw 7; the nut 8 is detachably connected to the screw 7, and the screw 7 is movably connected to the groove 6; the clamping plate 10 is movably connected to the pipe end piece 11, and the clamping plate 10 is set with a semi-arc structure. The clamping plate 10 and the groove 6 are tightly fitted with the compression spring 9.
[0028] The worker manually places the pipe end fitting 11, which requires fire hose threading and bonding, into the installation sleeve 5. According to the size and specifications of the pipe end fitting 11, the screw rod 7 is manually moved sequentially. Since the screw rod 7 is connected to the clamping plate 10, and the clamping plate 10 is located in the groove 6, moving the screw rod 7 will cause the clamping plate 10 to move within the groove 6 until the clamping plate 10 is attached to the pipe end fitting 11. Then, the nut 8 is rotated to tighten it onto the screw rod 7. Through the threaded engagement between the nut 8 and the screw rod 7, the clamping plate 10 is fixed in the position attached to the pipe end fitting 11, thus securing the pipe end fitting 11. The installation process facilitates precise adjustment of the pipe fittings 11 according to different sizes and specifications, achieving stable and reliable fixed installation and providing a good foundation for subsequent pipe-threading and bonding operations. Then, the worker applies pipe-threading adhesive to the surface of the pipe fitting 11, and sequentially passes the lower guide wheel 17 and upper guide wheel 22 onto the pipe fitting 11. Simultaneously, the hydraulic cylinder body 14 is activated via an external control panel. The output end of the hydraulic cylinder body 14 drives the pressure roller assembly 15 downwards, causing the pressure roller assembly 15 to press against the surface of the fire hose body 12, applying pressure with the pipe-threading adhesive. In this process, the pressure roller assembly 15 is bonded to the fire hose body 12 for pipe insertion. The operator manually removes the fire hose body 12, which is currently restrained by the lower guide wheel 17 and upper guide wheel 22, separating it from the guide wheels for subsequent rotation. The servo motor body 4 is activated via an external control panel. The output shaft of the servo motor body 4 drives the mounting sleeve 5 to rotate, which in turn drives the pipe end piece 11 fixed within the mounting sleeve 5 and the fire hose body 12 bonded to the pipe to rotate synchronously. During rotation, the pressure roller assembly 15 remains in contact with the fire hose body 12, ensuring proper pipe insertion. The head piece 11 and the fire hose body 12 are fully compressed and bonded together to ensure that the adhesive is evenly distributed and the bond is stronger. After the fire hose body 12 is bonded together, the workers manually loosen the nuts 8 one by one, then pull the screw 7, which causes the clamping plate 10 to detach from the head piece 11. This releases the fixation on the head piece 11, allowing the fire hose body 12 bonded together to be removed from the head piece 11. This completes the full bonding and removal of the fire hose.
[0029] Example 2: This example discloses a pipe-threading and bonding device for fire hose production, which facilitates stable conveying and guiding of fire hoses. See attached document for details. Figure 1 and attached Figure 5 - Appendix Figure 6The conveying assembly includes a support frame 16. Lower guide wheels 17 are mounted on the top of both sides of the support frame 16. Slide grooves 18 are formed inside both sides of the support frame 16. A fixed rod 19 is fixedly installed inside the slide groove 18. A strong spring 20 is sleeved on the outer wall of the fixed rod 19. A connecting rod 21 is sleeved on the outer wall of the fixed rod 19. An upper guide wheel 22 is movably connected to the outer wall of the connecting rod 21. The connecting rod 21 and the fixed rod 19 are movably connected, while the connecting rod 21 and the slide groove 18 are fixedly connected to the strong spring 20. The upper guide wheel 22 is rotatably connected to the connecting rod 21, and the connecting rod 21 is slidably connected to the slide groove 18.
[0030] As the fire hose body 12 passes sequentially through the lower guide wheel 17 and the upper guide wheel 22 onto the pipe fitting 11, the fire hose body 12 exerts an upward force on the upper guide wheel 22. This causes the upper guide wheel 22 to move the connecting rod 21 upward. At this time, the connecting rod 21 overcomes the elastic force of the strong spring 20 and slides upward within the fixed rod 19 and the sliding groove 18. As the connecting rod 21 moves upward, the strong spring 20 is compressed, generating a downward elastic force. When the fire hose body 12 is fitted onto the pipe fitting 11... After the head piece 11, under the action of the strong spring 20, the connecting rod 21 will drive the upper guide wheel 22 to move downward, automatically adjusting its position so that the upper guide wheel 22 fits tightly against the fire hose body 12. This allows the upper guide wheel 22 to adjust with the movement of the fire hose body 12, reducing friction on the fire hose body 12 and better guiding the movement direction of the fire hose body 12. This ensures the stability of the fire hose body 12 during transportation and avoids deviation or wrinkling.
[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A pipe-threading and bonding device for fire hose production, comprising a processing table (1), wherein a pull-out box (2) is movably connected inside the processing table (1), and an mounting plate (3) is fixedly installed on the top right side of the processing table (1), wherein a servo motor body (4) is provided on the right side of the mounting plate (3), and a limiting component for disassembly and assembly is fixedly installed on the output shaft of the servo motor body (4) through a coupling; Its features are: The limiting component includes an installation sleeve (5), and a pipe head (11) is movably connected inside the installation sleeve (5). A fire hose body (12) is sleeved on the outer wall of the pipe head (11). A support plate (13) is fixedly installed at the rear of the processing table (1). A hydraulic cylinder body (14) is provided on the top of the support plate (13). A pressure roller assembly (15) is fixedly installed at the output end of the hydraulic cylinder body (14). A conveying assembly for guidance is bolted to the top of the processing table (1).
2. The pipe-threading and bonding equipment for fire hose production according to claim 1, characterized in that: The mounting sleeve (5) has four grooves (6) inside, and a screw (7) is movably connected inside each groove (6). A nut (8) is threaded onto the outer wall of the screw (7). A compression spring (9) is sleeved on the outer wall of the screw (7) and is located inside the groove (6). A clamping plate (10) is fixedly installed at the end of the screw (7).
3. The pipe-threading and bonding equipment for fire hose production according to claim 1, characterized in that: The conveying assembly includes a support frame (16), with lower guide wheels (17) provided on the top of both sides of the support frame (16). Slide grooves (18) are provided inside both sides of the support frame (16). A fixing rod (19) is fixedly installed inside the slide groove (18). A strong spring (20) is sleeved on the outer wall of the fixing rod (19). A connecting rod (21) is sleeved on the outer wall of the fixing rod (19). An upper guide wheel (22) is movably connected to the outer wall of the connecting rod (21).
4. The pipe-threading and bonding equipment for fire hose production according to claim 2, characterized in that: The nut (8) and the screw (7) are detachably connected, while the screw (7) and the groove (6) are movably connected.
5. A pipe-threading and bonding device for fire hose production according to claim 2, characterized in that: The clamping plate (10) and the pipe head (11) are movably connected, and the clamping plate (10) is set as a semi-arc structure. The clamping plate (10) and the groove (6) are tightly fitted with the compression spring (9).
6. The pipe-threading and bonding equipment for fire hose production according to claim 3, characterized in that: The connecting rod (21) and the fixed rod (19) are movably connected, and the connecting rod (21) and the slide (18) are fixedly connected to the strong spring (20).
7. A pipe-threading and bonding device for fire hose production according to claim 3, characterized in that: The upper guide wheel (22) is rotatably connected to the connecting rod (21), and the connecting rod (21) is slidably connected to the slide groove (18).
Citation Information
Patent Citations
High-temperature bonding device for manufacturing fire hose
CN216032584U