A protective device for fire hydrants

Abstract

This utility model discloses a protective device for fire hydrants, including a fixed base, a fire hydrant body, a first protective sleeve, and a second protective sleeve. This utility model incorporates a base plate, a return spring, and a guide groove. A return assembly is fitted onto the surface of a support rod, and a baffle is fixedly installed on the upper end of the support rod, movably fitting against the top of the base plate. When the second protective sleeve is pressed down by external force, the base plate compresses the return spring. After the external force disappears, the return spring pushes the base plate, causing the second protective sleeve to return to its original position. This solves the problems of the lack of a spring-loaded and guide structure when the second protective sleeve is pressed down. The absence of a spring-loaded structure necessitates manual reset after use, which is cumbersome and prone to omissions due to oversight, reducing fire emergency efficiency. Furthermore, the lack of a guide structure makes it easy for the hydrant to tilt, jam, or even become stuck during pressing, making it difficult to accurately control the outlet position and potentially damaging the hydrant body or interface due to uneven force.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant protection technology, specifically a protective device for fire hydrants. Background Technology

[0002] With the continuous advancement of urban infrastructure construction, fire hydrants, as important facilities for urban fire safety, are widely distributed in streets, communities, and public places. In daily use, fire hydrants often face various threats such as vehicle collisions, human damage, and wind and rain, leading to problems such as component damage, valve leakage, and outlet blockage. This not only increases maintenance costs but also affects their normal operation during fires, delaying rescue opportunities.

[0003] However, existing technologies have some problems:

[0004] During use, the second protective sleeve does not have a spring-loaded or guide structure when pressed down. The lack of a spring-loaded structure means that manual reset is required after use, which is cumbersome and may be missed due to negligence, reducing the efficiency of fire emergency response. The lack of a guide structure makes it easy to tilt, jam, or even get stuck when pressed, which makes it difficult to accurately control the position of the water outlet and may also cause damage to the fire hydrant body or interface due to uneven force. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a protective device for fire hydrants. This device features a guiding structure to ensure the smooth movement of the second protective sleeve, and automatic reset to improve ease of use and protective efficiency. It solves the problems of the lack of a rebound and guiding structure when the second protective sleeve is pressed down. The absence of a rebound structure necessitates manual reset after use, which is cumbersome and may lead to oversights and reduced emergency response efficiency. Furthermore, the lack of a guiding structure makes it prone to tilting, jamming, or even becoming stuck during pressing, making it difficult to accurately control the outlet position and potentially causing damage to the fire hydrant body or interface due to uneven force.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a fire hydrant, comprising a fixed base, a fire hydrant body, a first protective sleeve, and a second protective sleeve. The fire hydrant body is fixedly connected to the top of the fixed base. The first protective sleeve is fixedly installed on the top of the fixed base and located outside the fire hydrant body. The second protective sleeve is movably installed on the first protective sleeve and located outside the fire hydrant body. A connecting sleeve is fixedly installed on the top surface of the first protective sleeve. An annular sleeve is fixedly installed on the top of the second protective sleeve. A reset mechanism is provided inside the first protective sleeve. A guide component is provided inside the first protective sleeve.

[0007] In a preferred embodiment of this utility model, the reset mechanism includes a base plate, a support rod, and a reset assembly. The base plate is fixedly installed at the bottom of the second protective sleeve and located inside the first protective sleeve. The base plate is provided with four sets and fixedly installed at the four corners of the bottom of the second protective sleeve. The support rod is fixedly installed at the top of the fixed base and located inside the first protective sleeve. The upper end of the support rod passes through the base plate from bottom to top and extends to the top of the base plate. The reset assembly is movably installed on the surface of the support rod.

[0008] In a preferred embodiment of this utility model, the reset assembly includes a reset spring and a baffle. The reset spring is movably sleeved on the surface of the support rod, with one end of the reset spring in contact with the top of the fixed base and the other end of the reset spring in contact with the bottom of the base plate. The baffle is fixedly installed on the upper end of the support rod and movably in contact with the top of the base plate.

[0009] In a preferred embodiment of this utility model, the guiding component includes a guiding groove and a guiding plate. The guiding groove is formed inside the first protective sleeve, and four sets of the guiding groove are arranged in a rectangular and equidistant manner. The guiding plate is movably installed inside the guiding groove, and the outer side of the guiding plate is fixedly connected to the bottom of the inner wall of the second protective sleeve.

[0010] In a preferred embodiment of this utility model, the top of the connecting sleeve is provided with a top groove, the top of the first protective sleeve is fixedly installed with a first magnetic suction plate and located inside the connecting sleeve, and the bottom of the annular sleeve is fixedly installed with a second magnetic suction plate, and the first magnetic suction plate and the second magnetic suction plate are magnetically connected.

[0011] As a preferred embodiment of this utility model, connecting blocks are fixedly installed on both the left and right sides of the first protective sleeve, and a positioning knob is movably installed on the outside of the connecting block. The positioning knob passes through the connecting block and the first protective sleeve from the outside to the inside and is threadedly connected to the outside of the guide plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting a base plate, a reset spring, and a guide groove, fixes four sets of base plates at the four corners of the bottom of the second protective sleeve. Each set of base plates corresponds to a support rod fixed to the top of the fixed base and located inside the first protective sleeve, so that the upper end of the support rod passes through the base plate from bottom to top. A reset assembly is sleeved on the surface of the support rod, wherein one end of the reset spring is attached to the top of the fixed base and the other end is attached to the bottom of the base plate. A baffle is fixedly installed on the upper end of the support rod and movably attached to the top of the base plate. When the second protective sleeve is pressed down by an external force, the base plate compresses the reset spring. After the external force is removed, the reset spring pushes the base plate to move the second protective sleeve back to its original position. The reset spring sleeved on the support rod plays a key role in buffering and resetting. When the second protective sleeve is subjected to external impact or pressure and moves downward, the reset spring is compressed and accumulates elastic potential energy. After the external force is removed, the reset spring releases energy and pushes the base plate attached to it to move upward, thereby moving the second protective sleeve back to its initial position. The baffle is fixed to the top of the support rod to limit the height of the base plate moving upward. To prevent the second protective sleeve from dislodging from its normal position and ensure a stable and controllable reset process, four sets of rectangular, equidistant guide grooves are opened on the inner side of the first protective sleeve. Guide plates are installed inside the guide grooves, and the outer side of the guide plates is fixedly connected to the bottom of the inner wall of the second protective sleeve. During the up-and-down movement of the second protective sleeve, the guide plates slide along the guide grooves, providing precise guidance for the second protective sleeve and preventing it from deviating or shaking during movement. This enhances the stability of the protective device and solves the problems of the lack of a rebound structure and guide structure when the second protective sleeve is pressed down. The absence of a rebound structure leads to manual reset after use, which is cumbersome and may result in missed resets due to negligence, reducing fire emergency efficiency. The lack of a guide structure makes it easy to tilt, jam, or even get stuck when pressed, making it difficult to accurately control the position of the water outlet and potentially causing damage to the fire hydrant body or interface due to uneven force. The guide structure ensures the smooth movement of the second protective sleeve and the automatic reset improves ease of use and protection efficiency.

[0014] 2. This utility model uses a reset mechanism set inside the first protective sleeve, and four sets of base plates are fixed at the four corners of the bottom of the second protective sleeve. Each set of base plates corresponds to a support rod fixed to the top of the fixed base and located inside the first protective sleeve, so that the upper end of the support rod passes through the base plate from bottom to top. A reset component is sleeved on the surface of the support rod, wherein one end of the reset spring is attached to the top of the fixed base and the other end is attached to the bottom of the base plate. A baffle is fixedly installed on the upper end of the support rod and is movably attached to the top of the base plate. When the second protective sleeve is pressed down by an external force, the base plate compresses the reset spring. After the external force disappears, the reset spring pushes the base plate to drive the second protective sleeve to reset.

[0015] 3. This utility model uses a reset component set on the surface of the support rod. The reset spring is sleeved on the support rod and plays a key role in buffering and resetting. When the second protective sleeve is subjected to external impact or pressure and moves downward, the reset spring is compressed and accumulates elastic potential energy. When the external force is eliminated, the reset spring releases energy and pushes the base plate that is in contact with it to move upward, thereby driving the second protective sleeve back to its initial position. The baffle is fixed at the top of the support rod, limiting the height of the base plate moving upward and preventing the second protective sleeve from falling out of its normal position, thus ensuring that the reset process is stable and controllable. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Fixed base; 2. Fire hydrant body; 3. First protective sleeve; 4. Second protective sleeve; 5. Connecting sleeve; 6. Ring sleeve; 7. Reset mechanism; 71. Base plate; 72. Support rod; 73. Reset assembly; 731. Reset spring; 732. Baffle; 8. Guide assembly; 81. Guide groove; 82. Guide plate; 9. Top groove; 10. First magnetic suction plate; 11. Second magnetic suction plate; 12. Connecting block; 13. Positioning knob. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 3 As shown, the present invention provides a protective device for a fire hydrant, comprising a fixed base 1, a fire hydrant body 2, a first protective sleeve 3, and a second protective sleeve 4. The fire hydrant body 2 is fixedly connected to the top of the fixed base 1. The first protective sleeve 3 is fixedly installed on the top of the fixed base 1 and located outside the fire hydrant body 2. The second protective sleeve 4 is movably installed on the first protective sleeve 3 and located outside the fire hydrant body 2. A connecting sleeve 5 is fixedly installed on the top surface of the first protective sleeve 3. An annular sleeve 6 is fixedly installed on the top of the second protective sleeve 4. A reset mechanism 7 is provided inside the first protective sleeve 3. A guide component 8 is provided inside the first protective sleeve 3.

[0022] refer to Figure 2 and Figure 3 The reset mechanism 7 includes a base plate 71, a support rod 72, and a reset assembly 73. The base plate 71 is fixedly installed at the bottom of the second protective sleeve 4 and located inside the first protective sleeve 3. The base plate 71 is provided with four sets and fixedly installed at the four corners of the bottom of the second protective sleeve 4. The support rod 72 is fixedly installed at the top of the fixed base 1 and located inside the first protective sleeve 3. The upper end of the support rod 72 passes through the base plate 71 from bottom to top and extends to the top of the base plate 71. The reset assembly 73 is movably installed on the surface of the support rod 72.

[0023] As a technical optimization of this utility model, a reset mechanism 7 is set inside the first protective sleeve 3, and four sets of base plates 71 are fixed at the four corners of the bottom of the second protective sleeve 4. Each set of base plates 71 corresponds to a support rod 72 fixed to the top of the fixed base 1 and located inside the first protective sleeve 3, so that the upper end of the support rod 72 passes through the base plate 71 from bottom to top. A reset assembly 73 is sleeved on the surface of the support rod 72, wherein one end of the reset spring 731 is attached to the top of the fixed base 1 and the other end is attached to the bottom of the base plate 71. The baffle 732 is fixedly installed on the upper end of the support rod 72 and is movably attached to the top of the base plate 71. When the second protective sleeve 4 is pressed down by an external force, the base plate 71 compresses the reset spring 731. After the external force disappears, the reset spring 731 pushes the base plate 71 to drive the second protective sleeve 4 to reset.

[0024] refer to Figure 2 and Figure 3 The reset assembly 73 includes a reset spring 731 and a baffle 732. The reset spring 731 is movably sleeved on the surface of the support rod 72. One end of the reset spring 731 is in contact with the top of the fixed base 1, and the other end of the reset spring 731 is in contact with the bottom of the base plate 71. The baffle 732 is fixedly installed on the upper end of the support rod 72 and is movably in contact with the top of the base plate 71.

[0025] As a technical optimization of this utility model, a reset component 73 is provided on the surface of the support rod 72, and a reset spring 731 is sleeved on the support rod 72, playing a key role in buffering and reset. When the second protective sleeve 4 is subjected to external impact or pressure and moves downward, the reset spring 731 is compressed and accumulates elastic potential energy. When the external force is eliminated, the reset spring 731 releases energy and pushes the bottom plate 71 that is in contact with it to move upward, thereby driving the second protective sleeve 4 back to its initial position. The baffle 732 is fixed at the top of the support rod 72, limiting the height of the bottom plate 71 to prevent the second protective sleeve 4 from falling out of its normal position, and ensuring that the reset process is stable and controllable.

[0026] refer to Figure 2 and Figure 3The guide assembly 8 includes a guide groove 81 and a guide plate 82. The guide groove 81 is opened inside the first protective sleeve 3. The guide groove 81 is provided in four sets and is distributed in a rectangular shape at equal intervals. The guide plate 82 is movably installed inside the guide groove 81. The outer side of the guide plate 82 is fixedly connected to the bottom of the inner wall of the second protective sleeve 4.

[0027] As a technical optimization of this utility model, a guide component 8 is set inside the first protective sleeve 3, and four sets of rectangular guide grooves 81 are opened inside the first protective sleeve 3 at equal intervals. A guide plate 82 is installed inside the guide grooves 81, and the outer side of the guide plate 82 is fixedly connected to the bottom of the inner wall of the second protective sleeve 4. During the up and down movement of the second protective sleeve 4, the guide plate 82 slides along the guide grooves 81 to provide precise guidance for the second protective sleeve 4, avoid its deviation or shaking during movement, and enhance the stability of the protective device.

[0028] refer to Figure 2 The top of the connecting sleeve 5 has a top groove 9. The top of the first protective sleeve 3 is fixedly installed with a first magnetic suction plate 10 and located inside the connecting sleeve 5. The bottom of the annular sleeve 6 is fixedly installed with a second magnetic suction plate 11. The first magnetic suction plate 10 and the second magnetic suction plate 11 are magnetically connected.

[0029] As a technical optimization of this utility model, a top groove 9 is provided on the top of the connecting sleeve 5. The first magnetic suction plate 10 is fixedly installed on the top of the first protective sleeve 3 and placed inside the connecting sleeve 5. At the same time, a second magnetic suction plate 11 is fixed at the bottom of the annular sleeve 6. After the second protective sleeve 4 is pressed down, the annular sleeve 6 is aligned with the connecting sleeve 5. The second magnetic suction plate 11 and the first magnetic suction plate 10 attract each other and connect, realizing a quick and stable top connection between the first protective sleeve 3 and the second protective sleeve 4, which is convenient for disassembly and installation, and at the same time enhances the overall sealing of the protective device.

[0030] refer to Figure 2 The first protective sleeve 3 has connecting blocks 12 fixedly installed on both the left and right sides. A positioning knob 13 is movably installed on the outside of the connecting block 12. The positioning knob 13 passes through the connecting block 12 and the first protective sleeve 3 from the outside to the inside and is threadedly connected to the outside of the guide plate 82.

[0031] As a technical optimization of this utility model, the connecting blocks 12 set on the left and right sides of the first protective sleeve 3 can be adjusted to their tightness with the guide plate 82 by rotating the positioning knob 13, thereby fixing the position of the second protective sleeve 4; when it is necessary to adjust the height of the second protective sleeve 4 or disassemble it, the positioning knob 13 can be loosened to move the second protective sleeve 4 flexibly, so as to meet the adjustment needs of the protective device under different usage scenarios.

[0032] The working principle and usage process of this utility model are as follows: In use, the fire hydrant body 2 is first fixedly connected to the top of the fixed base 1, and then the first protective sleeve 3 and the second protective sleeve 4 are installed in sequence. The first protective sleeve 3 and the second protective sleeve 4 are quickly and stably connected by aligning and adsorbing the top groove 9 of the connecting sleeve 5 with the magnetic suction plate at the bottom of the annular sleeve 6. When the fire hydrant needs to be used, the second protective sleeve 4 is pressed down. At this time, the guide plate 82 at the bottom of the inner wall of the second protective sleeve 4 slides down vertically along the guide groove 81 on the inner side of the first protective sleeve 3 to ensure a smooth downward movement. At the same time, the bottom plate 71 at the bottom of the second protective sleeve 4 compresses the return spring 731 on the support rod 72. After use, the return spring 731 releases its elastic potential energy, pushing the bottom plate 71 to drive the second protective sleeve 4 to automatically return to its original position. By rotating the positioning knob 13 on the connecting blocks 12 on the left and right sides of the first protective sleeve 3, the tightness of the guide plate 82 can be adjusted, and the position of the second protective sleeve 4 can be flexibly fixed or adjusted to meet the needs of different usage scenarios.

[0033] In summary: This fire hydrant protective device, by setting a base plate 71, a return spring 731, and a guide groove 81, has four sets of base plates 71 fixed at the four corners of the bottom of the second protective sleeve 4. Each set of base plates 71 corresponds to a support rod 72 fixed to the top of the fixed base 1 and located inside the first protective sleeve 3, so that the upper end of the support rod 72 passes through the base plate 71 from bottom to top. A return assembly 73 is sleeved on the surface of the support rod 72, wherein one end of the return spring 731 is attached to the top of the fixed base 1, and the other end is attached to the bottom of the base plate 71. The baffle 7... 32 is fixedly installed on the upper end of the support rod 72 and movably fits against the top of the base plate 71. When the second protective sleeve 4 is pressed down by an external force, the base plate 71 compresses the return spring 731. After the external force disappears, the return spring 731 pushes the base plate 71 to move the second protective sleeve 4 back to its original position. The return spring 731 is sleeved on the support rod 72 and plays a key role in buffering and resetting. When the second protective sleeve 4 is impacted or pressured downwards, the return spring 731 is compressed and accumulates elastic potential energy. After the external force is removed, the return spring 731 releases energy and pushes the support rod 72 to move the second protective sleeve 4 back to its original position. The base plate 71 moves upward, thereby driving the second protective sleeve 4 back to its initial position. The baffle 732 is fixed to the top of the support rod 72, limiting the height of the base plate 71's upward movement and preventing the second protective sleeve 4 from dislodging from its normal position, ensuring a stable and controllable reset process. Four sets of rectangular guide grooves 81 are opened on the inner side of the first protective sleeve 3. The guide plate 82 is installed on the inner side of the guide grooves 81, and the outer side of the guide plate 82 is fixedly connected to the bottom of the inner wall of the second protective sleeve 4. During the up-and-down movement of the second protective sleeve 4, the guide plate 82 slides along the guide grooves 81, providing precise guidance for the second protective sleeve 4, preventing it from deviating or shaking during movement, enhancing the stability of the protective device, and solving the problem that the second protective sleeve does not have a rebound structure or guide structure when pressed down. The lack of a rebound structure leads to the need for manual reset after use, which is cumbersome and may result in missed reset due to negligence, reducing the efficiency of fire emergency response. The lack of a guide structure makes it easy to tilt, jam, or even get stuck when pressed, making it difficult to accurately control the position of the water outlet, and may also cause damage to the fire hydrant body or interface due to uneven force.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 protective device for a fire hydrant, comprising a fixed base (1), a fire hydrant body (2), a first protective sleeve (3), and a second protective sleeve (4), characterized in that: The fire hydrant body (2) is fixedly connected to the top of the fixed base (1). The first protective sleeve (3) is fixedly installed on the top of the fixed base (1) and located outside the fire hydrant body (2). The second protective sleeve (4) is movably installed on the first protective sleeve (3) and located outside the fire hydrant body (2). A connecting sleeve (5) is fixedly installed on the top of the surface of the first protective sleeve (3). A ring sleeve (6) is fixedly installed on the top of the second protective sleeve (4). A reset mechanism (7) is provided inside the first protective sleeve (3). A guide component (8) is provided inside the first protective sleeve (3).

2. The protective device for a fire hydrant according to claim 1, characterized in that: The reset mechanism (7) includes a base plate (71), a support rod (72), and a reset assembly (73). The base plate (71) is fixedly installed at the bottom of the second protective sleeve (4) and located inside the first protective sleeve (3). The base plate (71) is provided with four sets and fixedly installed at the four corners of the bottom of the second protective sleeve (4). The support rod (72) is fixedly installed at the top of the fixed base (1) and located inside the first protective sleeve (3). The upper end of the support rod (72) passes through the base plate (71) from bottom to top and extends to the top of the base plate (71). The reset assembly (73) is movably installed on the surface of the support rod (72).

3. A protective device for a fire hydrant according to claim 2, characterized in that: The reset assembly (73) includes a reset spring (731) and a baffle (732). The reset spring (731) is movably sleeved on the surface of the support rod (72). One end of the reset spring (731) is in contact with the top of the fixed base (1), and the other end of the reset spring (731) is in contact with the bottom of the base plate (71). The baffle (732) is fixedly installed on the upper end of the support rod (72) and is movably in contact with the top of the base plate (71).

4. A protective device for a fire hydrant according to claim 1, characterized in that: The guide assembly (8) includes a guide groove (81) and a guide plate (82). The guide groove (81) is opened inside the first protective sleeve (3). The guide groove (81) is provided in four sets and is distributed in a rectangular shape at equal intervals. The guide plate (82) is movably installed inside the guide groove (81). The outer side of the guide plate (82) is fixedly connected to the bottom of the inner wall of the second protective sleeve (4).

5. A protective device for a fire hydrant according to claim 1, characterized in that: The top of the connecting sleeve (5) is provided with a top groove (9), the top of the first protective sleeve (3) is fixedly installed with a first magnetic suction plate (10) and located inside the connecting sleeve (5), the bottom of the annular sleeve (6) is fixedly installed with a second magnetic suction plate (11), and the first magnetic suction plate (10) and the second magnetic suction plate (11) are magnetically connected.

6. A protective device for a fire hydrant according to claim 4, characterized in that: The first protective sleeve (3) has a connecting block (12) fixedly installed on both the left and right sides. A positioning knob (13) is movably installed on the outside of the connecting block (12). The positioning knob (13) passes through the connecting block (12) and the first protective sleeve (3) from the outside to the inside and is threadedly connected to the outside of the guide plate (82).

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