A kind of fire hydrant copper ring and cap ratchet quick disassembly tool

Abstract

The utility model relates to fire fighting tool technical field discloses a fire hydrant copper hoop and cap ratchet quick dismounting tool, including mould head, the upper end of mould head is provided with a plurality of recesses, the distance and shape between two symmetrical recesses all are suitable for two symmetrical short small ears of fire hydrant copper hoop, one side of mould head is provided with counter sink, the outside of mould head is provided with counterbore, the shape of counterbore is suitable for the angle head of fire hydrant cap, the utility model drives two short small ears to rotate with recess, counterbore drives cap to rotate, realized the integration design of copper hoop and cap dismounting function. This single tool has integrated copper hoop dismounting and cap dismounting dual key function, avoids carrying multiple tools, reaches the effect of 'one machine two uses', petal type recess clamping solves the industry problem that copper hoop lacks effective force application site, ensures the stability and reliability of grabbing, the tool accords with the ergonomics design, and the operation is simple and direct, significantly reduces the dependence on the experience and technical level of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting tool technology, specifically a quick-release tool for fire hydrant copper hoops and plug cap ratchet. Background Technology

[0002] Fire hydrants, as crucial fire protection infrastructure, suffer from a serious problem of lost copper fastening hoops and caps during routine maintenance or accidents. Existing replacement procedures are cumbersome and inefficient, with the core issue being the extremely limited volume of the symmetrical, short lugs in the copper hoop design, and the lack of an effective force-applying structure (point of contact). This makes it difficult to apply sufficient torque for reliable fastening during installation, and even more difficult during disassembly due to slippage and lack of effective gripping. The installation and removal of caps also typically require carrying additional equipment, increasing the equipment burden and operational complexity for maintenance personnel.

[0003] The aforementioned problems result in the traditional manual installation and removal of a set of copper clamps and caps taking approximately 8 minutes, which is inefficient and affects the timely repair and normal standby status of fire hydrants. This inefficiency not only significantly prolongs the maintenance and downtime of fire hydrants, seriously affecting their timely restoration to standby status, but may also delay fire water supply in emergencies, becoming a significant bottleneck in improving the operational efficiency of urban fire protection facilities.

[0004] Therefore, the applicant proposes a quick-release tool for fire hydrant copper hoops and plug caps with ratchet. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-release and reassembly tool for fire hydrant copper clamps and caps using a ratchet mechanism, solving the following technical problems: Fire hydrants, as important fire protection infrastructure, suffer from a serious problem of copper clamps and caps being lost during routine maintenance or accidents. Existing replacement processes are cumbersome and inefficient, with the core issue being the extremely limited volume of the symmetrical, short lugs in the copper clamp design, and the lack of an effective force-applying structure (force-bearing point). This makes it difficult to apply sufficient torque for reliable fastening during installation, and even more difficult during disassembly, as it cannot be effectively held in place and is prone to slippage, making operation exceptionally difficult. The installation and removal of caps also typically require additional carrying, increasing the equipment burden and operational complexity for maintenance personnel.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A ratchet-based quick-release tool for fire hydrant copper hoops and caps includes a die head. The upper end of the die head has multiple grooves, the distance and shape of which are adapted to the two symmetrical short ears of the fire hydrant copper hoop. A disc is fixedly mounted on one side of the die head, and a countersunk head is fixedly mounted on the outer side of the disc. A countersunk hole is formed on the outer side of the die head, the shape of which is adapted to the corner of the fire hydrant cap. The ratchet rotates the countersunk head, causing the die head to rotate. The two symmetrical grooves then rotate the two symmetrical short ears, and simultaneously, the countersunk hole drives the fire hydrant cap to rotate, achieving simultaneous disassembly and assembly of the copper hoop and cap.

[0008] As a further embodiment of this invention: the number of grooves is 8 and they are distributed in a circular array along the center of the mold head.

[0009] The two symmetrical grooves precisely engage with the two symmetrical short ears of the fire hydrant copper hoop, forming a stable mechanical connection. This effectively prevents relative slippage during operation, allowing the tool to hold the copper hoop stably and firmly. This provides a solid and reliable foundation for subsequent ratchet rotation, tension adjustment, and other operations, significantly improving the convenience and stability of disassembly and assembly.

[0010] As a further embodiment of this utility model: the shape of the plurality of grooves is a fan-shaped annular surface, and the plurality of grooves form a petal-shaped countersunk hole structure.

[0011] As a further embodiment of this utility model: the circular edge of the disk coincides with the inner ring surface of the multiple grooved fan-shaped annular surfaces.

[0012] As a further embodiment of this utility model: the countersunk head has a hexagonal structure and is used to cooperate with the hexagonal drive head of the ratchet handle to transmit torque.

[0013] After the two symmetrical grooves of the mold head precisely engage with the two symmetrical short ears of the fire hydrant copper hoop, the ratchet handle can be operated. The hexagonal drive head of the ratchet handle and the edge of the hexagonal countersunk head can be fully engaged, which can quickly and effortlessly tighten or loosen the copper hoop, greatly simplifying the operation and increasing the speed. The torque is transmitted through the rigid engagement between the edges, effectively avoiding slippage and loss during operation.

[0014] As a further embodiment of this utility model: the countersunk hole is hexagonal, and the center of the countersunk hole coincides with the center of the die head.

[0015] The hexagonal countersunk hole of the countersunk head and the hexagonal head of the fire hydrant plug cap form a tight fit. As the countersunk head rotates, the driving force is transmitted to the die head through the mechanical structure. The die head will synchronously drive the fire hydrant plug cap to rotate stably, completing the tightening or loosening of the plug cap. This structure innovatively integrates two core functions: copper hoop assembly and copper plug assembly. It can meet the needs of copper hoop assembly and disassembly, and also realize the quick operation of the plug cap. It effectively avoids the cumbersome task of carrying multiple tools during operation and successfully achieves the convenient experience of "one machine for two uses".

[0016] As a further embodiment of this utility model, a through hole is provided from the inside of the countersunk hole to the outside of the countersunk head.

[0017] As a further embodiment of this utility model: the center of the mold head, the center of the disc, and the center of the countersunk head are on the same straight line.

[0018] The beneficial effects of this utility model are:

[0019] (1) This utility model utilizes two symmetrical grooves to drive the two symmetrical short ears of the fire hydrant copper hoop to rotate, and the countersunk hole drives the fire hydrant plug to rotate, realizing the integrated design of the copper hoop and plug assembly / disassembly functions. A single tool integrates two key functions of copper hoop assembly / disassembly and plug assembly / disassembly, avoiding the need to carry multiple tools and realizing "one machine for two uses".

[0020] (2) This utility model utilizes a variety of grooves to form a petal-shaped countersunk hole structure, with each groove precisely corresponding to the two short ears protruding from the copper hoop of the fire hydrant. This design cleverly solves the problem of the copper hoop having no leverage point, enabling the tool to stably hold the copper hoop, providing a solid foundation for subsequent operations.

[0021] (3) After the copper hoop is clamped by the die head, the ratchet handle can be operated to quickly and effortlessly complete the tightening or loosening of the copper hoop. The tool adopts an ergonomic design, is simple and intuitive to operate, greatly reduces the dependence on the experience and technical level of maintenance personnel, effectively simplifies the operation intensity and improves the work efficiency. After using this tool, the replacement, installation / removal time of fire hydrant copper hoop and plug cap is reduced from about 8 minutes to about 2 minutes, and the efficiency is increased by up to 75%. This not only speeds up the repair of fire hydrant faults, but also ensures that fire-fighting facilities are always in good standby condition.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the countersunk hole of this utility model;

[0026] Figure 3 This is a top view of the structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the ratchet handle of this utility model.

[0028] In the diagram: 1. Die head; 2. Groove; 3. Disc; 4. Countersunk head; 5. Countersunk hole; 6. Through hole; 7. Ratchet handle. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] In the field of fire-fighting equipment technology, existing tools for disassembling and assembling fire hydrant copper clamps and caps are cumbersome and inefficient in actual use. The core problem lies in the small size of the copper clamp lugs, which lack effective leverage points, making it difficult to apply force for tightening during installation and equally difficult to disassemble. Installing the caps also requires specialized tools. Traditionally, manually installing and disassembling a set of copper clamps and caps takes approximately 8 minutes, which is inefficient and affects the timely repair and normal standby status of fire hydrants. Therefore, this utility model addresses the aforementioned problems of traditional fire hydrant copper clamp and cap disassembly and assembly tools by innovatively designing a modular system that effectively solves the problems of cumbersome and inefficient fire hydrant replacement processes. It achieves an integrated design for disassembling and assembling copper clamps and caps, as detailed below:

[0032] Example 1: As Figure 1 , Figure 3As shown, a quick-release tool for fire hydrant copper hoop and plug cap ratchet includes a die head 1. The die head 1 has a disc-shaped structure that can engage with the copper hoop, ensuring the stability of the tool during use. The upper end of the die head 1 has multiple grooves 2. In this embodiment, there are 8 grooves 2. The multiple grooves 2 form a uniquely designed "petal-shaped" countersunk hole structure. The grooves 2 are designed in the shape of a fan-shaped annular surface.

[0033] Multiple grooves 2 are arranged in a circular array along the center of the mold head 1. The distance and shape between two symmetrical grooves 2 are matched with the distance between two short ears protruding from the copper hoop of the fire hydrant. After precise calculation, it can be ensured that the two symmetrical grooves 2 and the two short ears can be precisely matched and engaged in pairs.

[0034] In previous fire hydrant copper hoop disassembly and assembly operations, the smooth surface of the copper hoop, lacking obvious gripping points, often led to tool slippage and difficulty in stable clamping, significantly impacting disassembly and assembly efficiency and operational safety. This "petal-shaped" countersunk hole structure cleverly solves this problem through the precise engagement of the groove 2 with the copper hoop's lugs. When the tool engages with the copper hoop, the groove 2 firmly grips the lugs, forming a stable mechanical connection. This effectively prevents relative slippage during operation, allowing the tool to hold the copper hoop stably and securely. This provides a solid and reliable foundation for subsequent operations such as rotating and adjusting the ratchet handle 7, significantly improving the convenience and stability of the disassembly and assembly operations.

[0035] like Figure 1 , Figure 3 , Figure 4 As shown, a disc 3 is fixedly mounted on one side of the die head 1. The center of the disc 3 coincides with the center of the die head 1. The circular edge of the disc 3 coincides with the inner ring surface of the fan-shaped annular surface of multiple grooves 2. A countersunk head 4 is fixedly mounted on the outer side of the disc 3. The countersunk head 4 has a hexagonal structure. The dimensions of the hexagonal contour of the countersunk head 4 are used to cooperate with the hexagonal drive head of the ratchet handle 7 to transmit torque. When the groove 2 on the die head 1 engages the copper hoop, operating the handle of the ratchet handle 7 allows the hexagonal edges of the two to fully engage, enabling quick and effortless tightening or loosening of the copper hoop. This greatly simplifies the operation and increases speed. The rigid meshing between the edges transmits torque, effectively avoiding slippage and wear during operation. This structural design not only ensures the long-term stability of the mechanical connection but also provides an efficient and convenient force-bearing operation interface for subsequent manual adjustment, maintenance, or disassembly operations.

[0036] Example 2: Based on Example 1, as follows Figure 2As shown, a standard countersunk hole 5 is provided on the outer side of the mold head 1. The interior of the countersunk hole 5 extends to the outer side of the countersunk head 4, where a through hole 6 is provided. The center of the countersunk hole 5 coincides with the center of the mold head 1. The countersunk hole 5 is hexagonal and is compatible with the hexagonal head of the fire hydrant cap. This standardized structural compatibility design enables seamless switching of the same tool to complete the installation and removal of the cap.

[0037] This design allows the operator to rotate the hexagonal countersunk head 4 via the ratchet handle 7, causing the pre-set hexagonal countersunk hole 5 in the center of the die head 1 to fit tightly into the hexagonal head of the fire hydrant cap. As the rotational force of the countersunk head 4 is transmitted to the die head 1 through the mechanical structure, the die head 1 simultaneously drives the matching fire hydrant cap to rotate stably, completing the tightening or loosening of the cap. This innovative structure integrates two core functions: copper hoop assembly and cap assembly / disassembly. It can handle both the assembly and disassembly of copper hoops and the rapid operation of caps, effectively avoiding the cumbersome task of carrying multiple tools during operation. It successfully achieves a convenient "one machine, two uses" experience, significantly reducing tool carrying costs and operation switching time. Its advantages are particularly prominent in outdoor maintenance or emergency operation scenarios. Furthermore, the tool design is ergonomic, simple, and intuitive to operate, greatly reducing the experience and technical requirements for maintenance personnel.

[0038] Example 3: Based on Examples 1 and 2, as follows... Figure 1 - Figure 4 As shown, the application prospects, usage instructions, innovative effects, and value of a quick-release tool for fire hydrant copper clamps and cap ratchet are as follows:

[0039] Application Prospects: This tool is specifically designed for the maintenance and emergency repair of fire hydrants (especially those involving copper clamps and caps). It is suitable for fire departments, municipal engineering units, property maintenance companies, and other organizations and personnel responsible for fire hydrant maintenance. The market application prospects are clear and the demand is urgent. Instructions for use are as follows:

[0040] Instructions for use:

[0041] 1) Install / remove copper hoop: Select the matching petal mold head 1 according to the size of the fire hydrant copper hoop, align the two symmetrical grooves 2 with the two ears of the copper hoop and insert them, and use the ratchet handle 7 to operate (tighten or loosen).

[0042] 2) Install / remove the plug cap: Insert the hexagonal head of the plug cap into the center hexagonal countersunk hole 5 of the die head 1, and use the matching hexagonal wrench or ratchet handle 7 (if compatible) to operate.

[0043] Innovative Effects and Value: Actual testing has verified the significant effectiveness of this tool: Firstly, the time for replacing, installing, or removing fire hydrant copper hoops and caps has been drastically reduced from approximately 8 minutes to about 2 minutes, increasing efficiency by up to 75% and significantly saving labor time costs. Secondly, the tool's ratchet handle structure precisely solves the difficulty of applying force during the installation and removal of copper hoops, making operation labor-saving, fast, and reliable. Cap removal and installation can be completed in one step, effectively reducing the risk of damage to parts due to tool inconvenience. Ultimately, this not only accelerates the repair speed of fire hydrant malfunctions but also ensures that fire protection facilities are always in good standby condition.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-release tool for fire hydrant copper clamps and cap ratchet, characterized in that, The device includes a mold head (1), the upper end of which is provided with multiple grooves (2). The distance and shape between two symmetrical grooves (2) are adapted to the two symmetrical short ears of the fire hydrant copper hoop. A disc (3) is fixedly provided on one side of the mold head (1). A countersunk head (4) is fixedly provided on the outer side of the disc (3). A countersunk hole (5) is provided on the outer side of the mold head (1). The shape of the countersunk hole (5) is adapted to the corner of the fire hydrant cap. The countersunk head (4) is rotated by the ratchet handle (7) to drive the mold head (1) to rotate. The two symmetrical grooves (2) drive the two symmetrical short ears to rotate. At the same time, the countersunk hole (5) drives the fire hydrant cap to rotate, so as to realize the simultaneous disassembly and assembly of the copper hoop and the cap.

2. The quick-release tool for fire hydrant copper clamps and cap ratchet as described in claim 1, characterized in that, The number of grooves (2) is 8, and they are arranged in a ring array along the center of the mold head (1).

3. The quick-release tool for fire hydrant copper clamps and cap ratchet as described in claim 1, characterized in that, The multiple grooves (2) are all fan-shaped annular surfaces, and the multiple grooves (2) form a petal-shaped countersunk hole structure.

4. The quick-release tool for fire hydrant copper clamps and cap ratchet as described in claim 1, characterized in that, The circular edge of the disk (3) coincides with the inner ring surface of the fan-shaped annular surface of the multiple grooves (2).

5. The quick-release tool for fire hydrant copper clamps and cap ratchet as described in claim 1, characterized in that, The countersunk head (4) has a hexagonal structure and is used to cooperate with the hexagonal drive head of the ratchet handle (7) to transmit torque.

6. The quick-release tool for fire hydrant copper clamps and cap ratchet according to claim 1, characterized in that, The countersunk hole (5) is hexagonal, and the center of the countersunk hole (5) coincides with the center of the die head (1).

7. The quick-release tool for fire hydrant copper clamps and cap ratchet according to claim 1, characterized in that, A through hole (6) is provided from the inside of the countersunk hole (5) to the outside of the countersunk head (4).

8. A quick-release tool for fire hydrant copper clamps and cap ratchet as described in claim 1, characterized in that, The center of the mold head (1), the center of the disc (3), and the countersunk head (4) are on the same straight line.

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