Static pressure test bench for fire-fighting lance

Abstract

The utility model relates to the technical field of testboards, in particular to a static pressure testboard for a fire-fighting lance, which comprises a mounting base and a driving assembly, a hollow shaft is rotatably arranged in a shaft hole of the mounting base, a support shaft is slidably arranged in a polygonal shaft cavity of the hollow shaft, a mounting piece is arranged on the support shaft, and the mounting piece is of a U-shaped structure. Multiple sets of threaded pipes are symmetrically arranged at the two ends of the mounting part correspondingly, threaded columns are rotationally arranged in threaded inner holes of the threaded pipes and used for fixing the water gun in a positioning groove of the mounting part, and the driving assembly is arranged in a cavity of the mounting base and used for adjusting the angle of the water gun driven by the hollow shaft; the lifting assembly is arranged in the cavity of the mounting base, and the lifting assembly is used for adjusting the height of the water gun driven by the supporting shaft; the mounting and dismounting convenience is high, and the size adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of test benches, in particular to a static pressure test bench for fire hoses. Background Art

[0002] Fire hoses are an essential piece of firefighting equipment and play a vital role in firefighting. To ensure the quality and performance of fire hoses, static pressure testing is an essential inspection procedure.

[0003] Existing test benches often use a single fixing method when fixing the water gun, which easily causes the water gun to shake or fall off during the high-pressure test, affecting the accuracy of the test results. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a static pressure test bench for fire hoses, which is easy to assemble and disassemble and has strong dimensional adaptability.

[0005] The utility model provides a static pressure test bench for fire-fighting water guns, comprising:

[0006] The mounting base and the driving assembly are provided with a hollow shaft rotatably arranged inside the shaft hole of the mounting base, a support shaft is slidably arranged inside the polygonal shaft cavity of the hollow shaft, a mounting piece is provided on the support shaft, and the mounting piece is provided with a U-shaped structure. Multiple groups of threaded tubes are symmetrically provided at both ends of the mounting piece, and a threaded column is rotatably provided in the threaded inner hole of the threaded tube. The threaded column is used to fix the water gun in the positioning groove of the mounting piece. The driving assembly is provided inside the cavity of the mounting base, and the driving assembly is used to drive the hollow shaft to adjust the angle of the water gun;

[0007] The lifting assembly is arranged inside the cavity of the mounting base, and the lifting assembly is used to support the shaft to drive the water gun to adjust the height.

[0008] Furthermore, a first adjusting wheel is coaxially arranged on the threaded column.

[0009] Preferably, the drive assembly includes a transmission shaft rotatably arranged in the through hole of the mounting base, a worm is coaxially arranged on the transmission shaft, a worm wheel is coaxially arranged on the hollow shaft, and the worm and the worm wheel are meshingly connected.

[0010] Furthermore, a second adjusting wheel is coaxially arranged on the transmission shaft.

[0011] Preferably, the lifting assembly includes a threaded rod rotatably arranged inside the cavity of the mounting base, the threaded rod is arranged in the threaded inner hole of the support shaft, and the threaded rod is provided with rotational power through the power assembly.

[0012] Furthermore, the power assembly includes a conduction shaft rotatably arranged in the through slot of the mounting base, a driving bevel gear is coaxially arranged on the conduction shaft, a driven bevel gear is coaxially arranged on the threaded rod, and the driving bevel gear and the driven bevel gear are meshed and transmission-connected.

[0013] Preferably, a third adjusting wheel is coaxially arranged on the conducting shaft.

[0014] Furthermore, a plurality of groups of Forma wheels are provided at the bottom end of the mounting base.

[0015] Preferably, movable handles are symmetrically provided at both ends of the mounting base.

[0016] Furthermore, a protective pad is provided at the contact end of the threaded column and the water gun.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: through the combined design of the hollow shaft and the support shaft, the water gun can be flexibly adjusted at different angles and heights. This design not only improves the convenience of operation during the test, but also can comprehensively detect the performance of the water gun under various conditions of use. The mounting part adopts a U-shaped structure design, and multiple groups of threaded tubes and threaded columns are symmetrically arranged at both ends, which can firmly fix different models of fire water guns, ensure the stability of the water gun during high-pressure testing, and avoid the risk of falling off due to vibration or external force. The driving assembly and the lifting assembly are both arranged inside the mounting base, which saves space and simplifies the operation process. The operator can adjust the angle and height of the water gun through simple control, which greatly improves work efficiency. Since the support shaft can slide inside the multi-faceted shaft cavity of the hollow shaft, the transmission relationship between the support shaft and the hollow shaft remains unchanged after the connection position is adjusted, and the disassembly and assembly are convenient and the size adaptability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is an axonometric structural diagram of the present utility model;

[0020] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0022] Markings in the accompanying drawings: 1. Mounting base; 2. Hollow shaft; 3. Support shaft; 4. Mounting part; 5. Threaded tube; 6. Threaded column; 7. First adjusting wheel; 8. Transmission shaft; 9. Worm; 10. Worm gear; 11. Second adjusting wheel; 12. Threaded rod; 13. Transmission shaft; 14. Driving bevel gear; 15. Driven bevel gear; 16. Third adjusting wheel; 17. Forma wheel; 18. Moving handle. DETAILED DESCRIPTION

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figures 1 to 4 As shown, the static pressure test bench for fire hose of the present invention comprises:

[0025] The mounting base 1 and the driving assembly are installed. A hollow shaft 2 is rotatably provided inside the shaft hole of the mounting base 1. A support shaft 3 is slidably provided inside the polyhedral shaft cavity of the hollow shaft 2. A mounting part 4 is provided on the support shaft 3. The mounting part 4 is set as a U-shaped structure. Multiple groups of threaded tubes 5 are symmetrically provided at both ends of the mounting part 4. A threaded column 6 is rotatably provided in the threaded inner hole of the threaded tube 5. The threaded column 6 is used to fix the water gun in the positioning groove of the mounting part 4. The driving assembly is arranged inside the cavity of the mounting base 1. The driving assembly is used for the hollow shaft 2 to drive the water gun to adjust the angle;

[0026] Lifting assembly, the lifting assembly is arranged inside the cavity of the mounting base 1, and the lifting assembly is used to support the shaft 3 to drive the water gun to adjust the height; through the combined design of the hollow shaft 2 and the support shaft 3, the water gun can be flexibly adjusted at different angles and heights. This design not only improves the convenience of operation during the test, but also can comprehensively detect the performance of the water gun under various conditions of use. The mounting part 4 adopts a U-shaped structure design, and multiple groups of threaded tubes 5 and threaded columns 6 are symmetrically arranged at both ends, which can firmly fix different models of fire water guns, ensure the stability of the water gun during high-pressure testing, and avoid the risk of falling off due to vibration or external force. The driving assembly and the lifting assembly are both arranged inside the mounting base 1, which saves space and simplifies the operation process. The operator can adjust the angle and height of the water gun through simple control, which greatly improves work efficiency. Since the support shaft 3 can slide inside the multi-faceted shaft cavity of the hollow shaft 2, the transmission relationship between the support shaft 3 and the hollow shaft 2 remains unchanged after the connection position is adjusted, and the disassembly and assembly are convenient and the size adaptability is strong.

[0027] like Figures 1 to 4 As shown, as a preferred solution, a first adjusting wheel 7 is coaxially arranged on the threaded column 6; by coaxially arranging the first adjusting wheel 7 on the threaded column 6, the operator can more conveniently fix and release the water gun, and the design of the first adjusting wheel 7 makes manual rotation of the threaded column 6 more labor-saving, thereby improving the convenience of operation and work efficiency.

[0028] like Figures 1 to 4As shown, as a preferred solution, the drive assembly includes a transmission shaft 8 rotatably arranged in the through hole of the mounting base 1, a worm 9 is coaxially arranged on the transmission shaft 8, and a worm wheel 10 is coaxially arranged on the hollow shaft 2. The worm 9 and the worm wheel 10 are meshingly connected, and a second adjusting wheel 11 is coaxially arranged on the transmission shaft 8; the structural design of the drive assembly makes the power transmission more stable and reliable, and can effectively transmit power to the hollow shaft 2 to drive the water gun to adjust the angle. A second adjusting wheel 11 is coaxially arranged on the transmission shaft 8. The operator can control the rotation of the worm 9 by rotating the second adjusting wheel 11, and then drive the worm wheel 10 and the hollow shaft 2 to rotate. The design of the second adjusting wheel 11 makes the operation more intuitive and convenient. The meshing transmission between the worm 9 and the worm wheel 10 has a self-locking characteristic. When the worm stops rotating, the worm wheel is not easy to rotate in the opposite direction, thereby ensuring the stability of the water gun after adjusting to the specified angle.

[0029] like Figures 1 to 4 As shown, as a preferred embodiment, the lifting assembly includes a threaded rod 12 rotatably arranged inside the cavity of the mounting base 1, the threaded rod 12 is arranged in the threaded inner hole of the support shaft 3, and the threaded rod 12 provides rotational power through the power assembly. The power assembly includes a conduction shaft 13 rotatably arranged in the through groove of the mounting base 1, and a driving bevel gear 14 is coaxially arranged on the conduction shaft 13. A driven bevel gear 15 is coaxially arranged on the threaded rod 12. The driving bevel gear 14 and the driven bevel gear 15 are meshed and connected for transmission. A third adjusting wheel 16 is coaxially arranged on the conduction shaft 13; the lifting assembly can achieve precise adjustment of the water gun height through the threaded cooperation of the threaded rod 12 and the support shaft 3. This design allows the operator to accurately adjust the water gun to the required test height, ensuring the consistency and accuracy of the test conditions. The power assembly includes a rotation setting A transmission shaft 13 is installed in the through groove of the base 1, and a driving bevel gear 14 is coaxially arranged on the transmission shaft 13. A driven bevel gear 15 is coaxially arranged on the threaded rod 12, and the two are meshed and connected. A third adjusting wheel 16 is coaxially arranged on the transmission shaft 13. The operator can control the lifting and lowering of the threaded rod 12 by rotating the third adjusting wheel 16, making the operation more intuitive and convenient. Through the meshing transmission of the driving bevel gear 14 and the driven bevel gear 15, the power transmission is smoother and more reliable. This design can effectively transmit power to the threaded rod 12, driving the support shaft 3 and the water gun mounted thereon to adjust the height. The threaded fit between the threaded rod 12 and the support shaft 3 has a certain self-locking characteristic. When the threaded rod 12 stops rotating, the support shaft 3 is not easy to move in the opposite direction, thereby ensuring the stability of the water gun after adjusting to the specified height.

[0030] like Figures 1 to 4As shown, as a preferred solution, multiple sets of Forma wheels 17 are provided at the bottom of the mounting base 1; multiple sets of Forma wheels 17 are provided at the bottom of the mounting base 1, so that the test bench can be easily moved to the desired position. This design greatly improves the portability and flexibility of the equipment, especially when the test site needs to be frequently changed, it can significantly improve work efficiency. The Forma wheels 17 are equipped with a locking function, and the operator can lock the wheels as needed to prevent the test bench from sliding during use.

[0031] like Figures 1 to 4 As shown, as a preferred solution, movable handles 18 are symmetrically provided at both ends of the mounting base 1; movable handles 18 are symmetrically provided at both ends of the mounting base 1, so that the operator can grasp more conveniently when moving the test bench. This design makes the transportation and positioning of the equipment simpler and faster, especially when frequent position adjustments are required, which improves the convenience of operation.

[0032] like Figures 1 to 4 As shown, as a preferred solution, a protective pad is provided at the contact end of the threaded column 6 and the water gun; a protective pad is provided at the contact end of the threaded column 6 and the water gun, which can effectively prevent the water gun from being scratched or squeezed during the fixing process. This design is particularly suitable for water guns of different materials and surface treatments, ensuring that the appearance and function of the water gun are intact before and after the test.

[0033] like Figures 1 to 4 As shown, as a preferred solution, its working process is as follows:

[0034] Move the fire hose to the predetermined position using the static pressure test bench. After reaching the designated position, lock the Forma wheel 17 to ensure that the test bench does not slide during the test. Place the fire hose to be tested in the positioning groove of the mounting member 4, and rotate the first adjusting wheel 7 on the threaded column 6 so that the threaded column 6 rotates along the inner hole of the threaded tube 5 and gradually approaches the hose until the protective pad of the threaded column 6 contacts the hose and applies an appropriate clamping force. According to the test requirements, the operator rotates the second adjusting wheel 11, which drives the hollow shaft 2 to rotate through the meshing transmission of the worm 9 and the worm wheel 10, thereby adjusting the angle of the hose. When the hose is adjusted to the desired angle, the worm 9 and the worm wheel 10 engage with each other. Due to the self-locking characteristics between the worm gears 10, the water gun will remain in this position. According to the test requirements, the operator rotates the third adjusting wheel 16, and drives the threaded rod 12 to rotate through the meshing transmission of the active bevel gear 14 and the driven bevel gear 15, thereby realizing the height adjustment of the support shaft 3. When the water gun is adjusted to the required height, the threaded cooperation between the threaded rod 12 and the support shaft 3 has a certain self-locking characteristic, and the support shaft 3 will remain in this position. After completing the position adjustment of the water gun, the static pressure test is started. After the test is completed, the first adjusting wheel 7 on the threaded column 6 is rotated so that the threaded column 6 rotates along the inner hole of the threaded tube 5 and gradually moves away from the water gun.

[0035] The static pressure test bench for the fire hose of the present invention has common mechanical installation, connection or setting methods, and any method that can achieve beneficial effects can be implemented.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Fire hose static pressure test bench, characterized by: include: The mounting base and the driving assembly are arranged such that a hollow shaft is rotatably provided inside the shaft hole of the mounting base, a support shaft is slidably provided inside the polygonal shaft cavity of the hollow shaft, a mounting piece is provided on the support shaft, and the mounting piece is arranged in a U-shaped structure. A plurality of groups of threaded tubes are symmetrically provided at both ends of the mounting piece, and a threaded column is rotatably provided in the threaded inner hole of the threaded tube, and the threaded column is used to fix the water gun in the positioning groove of the mounting piece. The driving assembly is arranged inside the cavity of the mounting base, and the driving assembly is used to drive the water gun to adjust the angle by the hollow shaft; A lifting assembly is arranged inside the cavity of the mounting base, and is used to support the shaft to drive the water gun to adjust the height.

2. The static pressure test bench for fire hose according to claim 1, characterized in that: A first adjusting wheel is coaxially arranged on the threaded column.

3. The static pressure test bench for fire hose according to claim 1, characterized in that: The driving assembly includes a transmission shaft rotatably arranged in a through hole of the mounting base, a worm is coaxially arranged on the transmission shaft, a worm wheel is coaxially arranged on the hollow shaft, and the worm and the worm wheel are meshingly connected.

4. The static pressure test bench for fire hose according to claim 3, characterized in that: A second adjusting wheel is coaxially arranged on the transmission shaft.

5. The static pressure test bench for fire hose according to claim 1, characterized in that: The lifting assembly includes a threaded rod rotatably arranged inside the cavity of the mounting base, the threaded rod is arranged in the threaded inner hole of the support shaft, and the threaded rod is provided with rotational power by a power assembly.

6. The static pressure test bench for fire hose according to claim 5, characterized in that: The power assembly includes a transmission shaft rotatably arranged in a through slot of a mounting base, a driving bevel gear is coaxially arranged on the transmission shaft, and a driven bevel gear is coaxially arranged on the threaded rod, and the driving bevel gear is meshed and transmission-connected with the driven bevel gear.

7. The static pressure test bench for fire hoses according to claim 6, characterized in that: A third adjusting wheel is coaxially arranged on the conducting shaft.

8. The static pressure test bench for fire hoses according to claim 1, wherein: A plurality of groups of Forma wheels are arranged at the bottom end of the mounting base.

9. The static pressure test bench for fire hoses according to claim 1, wherein: Moving handles are symmetrically arranged at both ends of the mounting base.

10. The static pressure test bench for fire hoses according to claim 1, wherein: The contact end of the threaded column and the water gun is provided with a protective pad.

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