Adjustable underground fire hydrant opening and closing device

Abstract

The invention relates to the technical field of fire fighting equipment, and discloses an adjustable underground fire hydrant opening and closing device which comprises an extended opening and closing rod and an opening and closing device connecting end, one end of the outer wall of the extended opening and closing rod is provided with a first thread, and one end of the interior of the extended opening and closing rod is internally provided with an internal thread; a second thread is arranged at the end of the opening and closing device connecting end and is in threaded connection with the internal thread, a telescopic supporting rod is arranged on the outer wall of the extending opening and closing rod, a connecting assembly is arranged at the bottom of the telescopic supporting rod, the telescopic supporting rod comprises a connecting rod, and the top end of the connecting rod is fixedly connected to the outer wall of the extending opening and closing rod. And a sleeve is arranged outside the connecting rod in a sleeving manner. By means of the splicing design, the whole device is convenient to disassemble and assemble and easy to assemble, the adjustable fixator is designed on the lower portion and keeps fixed with the underground fire hydrant, and the whole device can adapt to the sites of various complex conditions due to the integral rigid connection.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, in particular to an adjustable underground fire hydrant opening and closing device. Background Art

[0002] Fire hydrants are fixed fire-fighting facilities used to provide sufficient water pressure and water volume for direct use by fire trucks or firefighters when a fire occurs. They are usually connected to the city's main water pipe system or a special fire water supply system. Currently, existing fire hydrants often include: ground fire hydrants, underground fire hydrants, wall-mounted fire hydrants, dry and wet fire hydrants. Among them, underground fire hydrants are widely used in urban fire water supply systems. Their main function is to provide necessary fire water sources when a fire occurs.

[0003] Traditional underground fire hydrants usually include a fixed opening and closing device, which is often fixed at a certain height and has poor adaptability to different ground heights. In addition, traditional devices have certain limitations in operability and flexibility, especially in complex or narrow environments, where operators may find it difficult to effectively open and close the devices. Therefore, in response to the above problems, an adjustable underground fire hydrant opening and closing device is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an adjustable underground fire hydrant opening and closing device, which solves the problems of poor adaptability and limited operational flexibility of traditional underground fire hydrants at different ground heights.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable underground fire hydrant opening and closing device, comprising an extended opening and closing rod and an opening and closing device connecting end, a first thread is provided at one end of the outer wall of the extended opening and closing rod, an internal thread is provided at one end of the inner wall of the extended opening and closing rod, a second thread is provided at the end of the opening and closing device connecting end, the second thread is threadedly connected to the internal thread, a telescopic support rod is provided on the outer wall of the extended opening and closing rod, and a connecting component is provided at the bottom of the telescopic support rod.

[0006] Preferably, the telescopic support rod includes a connecting rod, the top end of the connecting rod is fixedly connected to the outer wall of the extended opening and closing rod, the outer part of the connecting rod is sleeved with a sleeve, a plurality of through holes are opened on both sides of the middle part of the connecting rod, and locking components are fixedly connected on both sides of the sleeve.

[0007] Preferably, the locking assembly includes a mounting tube, an outer wall of the mounting tube is fixedly connected to the middle part of the sleeve, a lifting rod is slidably connected to the middle part of the mounting tube, the outside of the lifting rod passes through the inside of the through hole, the outer wall of the lifting rod is fixedly connected to a fixing plate, the outside of the fixing plate is arranged inside the mounting tube, a spring is arranged between the fixing plate and the inner wall of the mounting tube, and the middle part of the spring is sleeved on the outside of the lifting rod.

[0008] Preferably, a lifting pad is fixedly connected to the end of the lifting rod.

[0009] Preferably, the connecting assembly comprises a fixer, the top of the fixer is fixedly connected to the bottom of the sleeve, the bottom of the fixer is provided with a square groove, and tightening bolts are penetrated on both sides of the square groove.

[0010] Preferably, the extended opening and closing rod and the telescopic support rod are combined into a T-shaped structure.

[0011] Preferably, the diameter of the lifting rod is smaller than the diameter of the through hole.

[0012] Working principle: When it is necessary to operate the underground fire hydrant, the operator first adjusts the length of the extended opening and closing rod, and by pulling the lifting rods on both sides, the fixed plate squeezes the spring, and then the spring generates a rebound reaction force. At this time, the lifting rod moves out of the corresponding through hole, and then adjusts the height position of the connecting rod in the casing according to the needs. When it moves to the appropriate position, the lifting rod can be loosened. At this time, the fixed plate is driven by the reaction force of the spring to return to its original position, and drives the lifting rod to move into the new corresponding through hole. At this time, the connecting rod is locked in the internal position of the casing, and the length of the device is adjusted to match the interface of the underground fire hydrant. Then connect the thread 2 on the connecting end of the opener with the internal thread inside the extended opening and closing rod, and according to the actual situation, another extended opening and closing rod can be connected to the extended opening and closing rod, and then the fire hydrant is opened or closed by rotating the extended opening and closing rod.

[0013] At the same time, during the operation, the length and position of the telescopic support rod can be adjusted in real time according to the ground conditions to ensure the stability and efficiency of the operation, and it can be connected to the underground fire hydrant connection end through the fixer, the square groove and the tightening bolts.

[0014] The present invention provides an adjustable underground fire hydrant opening and closing device, which has the following beneficial effects: 1. The present invention adopts a splicable design, so that the overall device is easy to disassemble and assemble, and an adjustable fixer is designed at the bottom to keep it fixed with the underground fire hydrant. The integrated rigid connection allows the overall device to adapt to various complex situations on site.

[0015] 2. The present invention can effectively fix the fire hydrant opening and closing rod by designing an adjustable support rod and arranging a tightening bolt on the fixer, so that under the effect of extending the opening and closing rod, the force arm can be fully expanded and the torque can be increased, thereby facilitating the control of the opening and closing of the underground fire hydrant. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0017] Among them, 1. Extend the opening and closing rod; 2. Thread 1; 3. Internal thread; 4. Opener and closer connection end; 5. Thread 2; 6. Connecting rod; 7. Sleeve; 8. Mounting pipe; 9. Lifting rod; 10. Lifting pad; 11. Fixing plate; 12. Spring; 13. Through hole; 14. Fixer; 15. Square groove; 16. Tighten the bolts. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0019] Please see attached Figure 1 -Attached Figure 2 An embodiment of the present invention provides an adjustable underground fire hydrant opening and closing device, including an extended opening and closing rod 1 and an opening and closing device connecting end 4, a thread 1 2 is provided at one end of the outer wall of the extended opening and closing rod 1, an internal thread 3 is provided at one end of the inner wall of the extended opening and closing rod 1, a thread 2 5 is provided at the end of the opening and closing device connecting end 4, and the thread 2 5 is threadedly connected with the internal thread 3, a telescopic support rod is provided on the outer wall of the extended opening and closing rod 1, and a connecting component is provided at the bottom of the telescopic support rod.

[0020] Specifically, the thread 2 5 on the opening and closing device connection end 4 is connected to the internal thread 3 inside the extended opening and closing rod 1, and according to the actual situation, another extended opening and closing rod 1 can be connected to the extended opening and closing rod 1, and then the fire hydrant is opened or closed by rotating the extended opening and closing rod 1. The extended opening and closing rod 1 and the telescopic support rod provide an adjustable length, so that the operator can adjust the length of the opening and closing rod according to the ground height and the position of the fire hydrant to ensure the correct docking with the fire hydrant. The telescopic support rod increases the overall stability of the opening and closing device. By adjusting its length during operation, it can ensure that the device remains stable under different operating heights and terrain conditions, thereby reducing the physical labor intensity and potential safety risks during operation.

[0021] Please see attached Figure 2 -Attached Figure 3 The telescopic support rod includes a connecting rod 6, the top of which is fixedly connected to the outer wall of the extended opening and closing rod 1, a sleeve 7 is sleeved on the outside of the connecting rod 6, and a plurality of through holes 13 are opened on both sides of the middle of the connecting rod 6, and locking components are fixedly connected on both sides of the sleeve 7.

[0022] Specifically, the connection rod 6 and the sleeve 7 can be fixed by contacting the locking assembly, so that the connection rod 6 can be adjusted in position inside the sleeve 7, so that the overall length of the device can be adjusted. This design allows the user to quickly adjust the length of the support rod according to the specific operating scenario, which is particularly important for flexible response to different ground heights or different operating conditions. Please see attached Figure 4 The locking assembly includes a mounting tube 8, the outer wall of the mounting tube 8 is fixedly connected to the middle part of the sleeve 7, the middle part of the mounting tube 8 is slidably connected with a lifting rod 9, the outside of the lifting rod 9 passes through the inside of the through hole 13, the outer wall of the lifting rod 9 is fixedly connected with a fixing plate 11, the outside of the fixing plate 11 is arranged inside the mounting tube 8, a spring 12 is arranged between the fixing plate 11 and the inner wall of the mounting tube 8, and the middle part of the spring 12 is sleeved on the outside of the lifting rod 9.

[0023] A lifting pad 10 is fixedly connected to the end of the lifting rod 9 .

[0024] Specifically, when it is necessary to operate the underground fire hydrant, the operator first adjusts the length of the extended opening and closing rod 1, and by pulling the lifting rods 9 on both sides, the fixed plate 11 squeezes the spring 12, and then the spring 12 generates a rebound reaction force. At this time, the lifting rod 9 is moved out of the corresponding through hole 13, and then the height position of the connecting rod 6 in the sleeve 7 is adjusted according to the needs. When it moves to the appropriate position, the lifting rod 9 can be released. At this time, the fixed plate 11 is driven by the reaction force of the spring 12 to return to its original position, and drives the lifting rod 9 to move into the new corresponding through hole 13. At this time, the connecting rod 6 is locked in the internal position of the sleeve 7, and the length adjustment of the device is completed. The mounting tube 8 is installed in the middle of the sleeve 7 as the fixed part of the locking assembly and provides a stable infrastructure. The spring 12 provides the necessary elasticity to support the rapid resetting of the fixed plate 11 and the adjustment of the locking force. This design allows for quick adjustment and locking of the length of the telescopic support pole, which is ideal for rapid operation in emergency situations, and provides a high degree of adjustability, allowing the device to adapt to a variety of different ground heights and usage scenarios, improving the practicality and flexibility of the device.

[0025] Please see attached Figure 2 The connecting assembly includes a fixer 14 , the top of which is fixedly connected to the bottom of the sleeve 7 , a square groove 15 is formed at the bottom of the fixer 14 , and tightening bolts 16 are penetrated on both sides of the square groove 15 .

[0026] Specifically, by inserting the connecting end on the fire hydrant into the square groove 15 and then rotating and tightening the bolt 16, the connecting end on the fire hydrant is firmly installed and fixed in the square groove 15, which can effectively fix the fire hydrant opening and closing rod. Therefore, under the action of extending the opening and closing rod 1, the lever arm can be fully expanded and the torque can be increased, thereby facilitating the control of the opening and closing of the underground fire hydrant.

[0027] The extended opening and closing rod 1 and the telescopic support rod are combined into a T-shaped structure.

[0028] The diameter of the lifting rod 9 is smaller than the diameter of the through hole 13 .

[0029] Specifically, the assembly design of the T-shaped structure makes the device easy to operate, thereby effectively controlling the opening and closing of the underground fire hydrant. At the same time, the diameter of the lifting rod 9 is smaller than the diameter of the through hole 13, so that when the lifting rod 9 moves inside the through hole 13, it will not generate a large friction force, thereby avoiding the consumption of the locking component.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable underground fire hydrant opening and closing device, comprising an extended opening and closing rod (1) and an opening and closing device connecting end (4), characterized in that: A first thread (2) is provided at one end of the outer wall of the extended opening and closing rod (1), an internal thread (3) is provided at one end of the inner wall of the extended opening and closing rod (1), a second thread (5) is provided at the end of the opening and closing device connecting end (4), the second thread (5) is threadedly connected to the internal thread (3), a telescopic support rod is provided at the outer wall of the extended opening and closing rod (1), and a connecting component is provided at the bottom of the telescopic support rod.

2. The adjustable underground fire hydrant opening and closing device according to claim 1, characterized in that: The telescopic support rod comprises a connecting rod (6), the top end of the connecting rod (6) is fixedly connected to the outer wall of the extended opening and closing rod (1), a sleeve (7) is sleeved on the outside of the connecting rod (6), a plurality of through holes (13) are opened on both sides of the middle of the connecting rod (6), and locking components are fixedly connected to both sides of the sleeve (7).

3. The adjustable underground fire hydrant opening and closing device according to claim 2, characterized in that: The locking assembly comprises a mounting tube (8), the outer wall of the mounting tube (8) being fixedly connected to the middle part of the sleeve (7), the middle part of the mounting tube (8) being slidably connected to a lifting rod (9), the outer part of the lifting rod (9) passing through the interior of a through hole (13), the outer wall of the lifting rod (9) being fixedly connected to a fixing plate (11), the outer part of the fixing plate (11) being arranged inside the mounting tube (8), a spring (12) being arranged between the fixing plate (11) and the inner wall of the mounting tube (8), the middle part of the spring (12) being sleeved on the outside of the lifting rod (9).

4. The adjustable underground fire hydrant opening and closing device according to claim 3, characterized in that: A lifting pad (10) is fixedly connected to the end of the lifting rod (9).

5. The adjustable underground fire hydrant opening and closing device according to claim 2, characterized in that: The connecting assembly comprises a fixer (14), the top of the fixer (14) being fixedly connected to the bottom of the sleeve (7), the bottom of the fixer (14) being provided with a square groove (15), and tightening bolts (16) being provided on both sides of the square groove (15).

6. The adjustable underground fire hydrant opening and closing device according to claim 1, characterized in that: The extended opening and closing rod (1) and the telescopic support rod are combined into a T-shaped structure.

7. The adjustable underground fire hydrant opening and closing device according to claim 3, characterized in that: The diameter of the lifting rod (9) is smaller than the diameter of the through hole (13).

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