Fire hydrant with thermal insulation member

Abstract

This utility model provides a fire hydrant with a heat-insulating component, relating to the field of fire hydrant technology. The utility model includes a valve body with a valve seat welded to its bottom. Three water outlet pipes are welded to the top of the outer surface of the valve body. A heat-insulating cover, made of fiberglass, is fitted over the outer surface of the valve body. A polyurethane pad is installed on the inner wall of the heat-insulating cover. A sealing device is provided between the valve seat and the heat-insulating cover. The sealing device uses a rubber airbag with adjustable deformation to seal between the heat-insulating cover and the valve seat. By using a rubber airbag and adjusting its deformation, this utility model ensures that after the heat-insulating cover is fitted onto the base, the outer surface of the rubber airbag can abut against the inner wall of the polyurethane pad on the inner wall of the heat-insulating cover, thus providing an auxiliary seal between the valve seat and the heat-insulating cover. This helps prevent the heat-insulating performance of the cover from being reduced by a humid environment.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, and in particular to a fire hydrant with a heat insulation component. Background Technology

[0002] Fire hydrants are key infrastructure in urban fire protection systems. They are fixed fire extinguishing devices that connect to municipal water supply networks or fire water tanks. They control water flow through valves to provide high-pressure water to fire trucks or fire hoses, ensuring the efficiency of fire fighting and rescue.

[0003] To ensure that fire hydrants can operate normally in cold winter regions, an insulation cover is usually installed on the outer surface of the fire hydrant in cold weather to protect it from the effects of cold weather. However, there is usually a gap between the bottom of the insulation cover and the valve seat of the fire hydrant, which may reduce the insulation performance of the insulation cover in some humid environments. Utility Model Content

[0004] This utility model addresses the problem that gaps generally exist between the bottom of the insulation cover and the valve seat of the fire hydrant, which may reduce the insulation performance of the insulation cover in some humid environments. It proposes a fire hydrant with insulation components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fire hydrant with a heat-insulating component, comprising a valve body, a valve seat welded to the bottom of the valve body, three water outlet pipes welded to the top of the outer surface of the valve body, a heat-insulating cover fitted on the outer surface of the valve body, the heat-insulating cover being made of fiberglass, a polyurethane padding layer installed on the inner wall of the heat-insulating cover, and a sealing device provided between the valve seat and the heat-insulating cover, the sealing device sealing the heat-insulating cover and the valve seat by means of a rubber airbag that can adjust the degree of deformation.

[0006] The effect achieved by the above components is as follows: by setting the rubber airbag and adjusting the degree of deformation of the rubber airbag, after the heat insulation cover is put on the base, the outer surface of the rubber airbag can abut against the inner wall of the polyurethane pad layer of the heat insulation cover, which can provide auxiliary sealing between the valve seat and the heat insulation cover, and help prevent the heat insulation performance of the heat insulation cover from being reduced by the humid environment.

[0007] Preferably, the sealing device includes a rubber airbag, which is sleeved on the outer surface of the valve seat. A pressure plate is fixedly installed on the top of the rubber airbag, and a cylinder is fixedly installed on the top of the pressure plate. The cylinder is slidably installed on the outer surface of the valve body, and screw hole blocks are symmetrically fixedly installed on the top of the cylinder. Bolts are threadedly connected to the inner wall of the screw hole blocks.

[0008] The effect achieved by the above components is as follows: pushing the cylinder downwards causes the pressure plate to move downwards. As the pressure plate moves downwards, it compresses the rubber airbag and causes the rubber airbag to deform outwards until the rubber airbag is deformed to a suitable degree. That is, when the heat insulation cover is fitted onto the base, the outer surface of the rubber airbag can abut against the inner wall of the polyurethane padding layer of the heat insulation cover. Then, the bolt is rotated so that one end of the bolt passes through the bolt hole block, so that one end of the bolt and the rubber airbag of the valve body can fix the valve seat and the heat insulation cover.

[0009] Preferably, two rubber strips are symmetrically installed on the outer surface of the valve body, and the screw hole block is located on one side of the rubber strips.

[0010] The effect achieved by the above components is that by setting the rubber strip, the friction between the bolt and the valve body can be increased, making the bolt less likely to loosen.

[0011] Preferably, a spring is fixedly installed on the top of the inner wall of the cylinder, and one end of the spring is fixedly installed on the top of the valve seat.

[0012] The effect achieved by the above components is as follows: by setting a spring, rotating the nut so that one end of the nut is away from the valve body, and at the same time the cylinder is not subjected to other external forces, the spring will support the cylinder, so that the pressure plate connected to the cylinder is away from the bottom of the rubber airbag, keeping the rubber airbag in its initial undeformed state, and supporting the rubber airbag when it is not in use, thereby improving the service life of the rubber airbag.

[0013] Preferably, the spring has a round rod inside, one end of which is fixedly mounted on the top of the valve seat, and the cylinder is slidably mounted on the outer surface of the two round rods.

[0014] The effect achieved by the above components is that by setting the round rod, the round rod can limit and guide the spring, which helps to prevent the spring from easily bending during deformation.

[0015] Preferably, the outer surface of the rubber airbag is uniformly provided with a plurality of raised strips.

[0016] The effect achieved by the above components is that by setting convex strips on the outer surface of the rubber airbag, the friction between the rubber airbag and the inner wall of the insulation cover and polyurethane pad can be increased, making the seal between the rubber airbag and the insulation cover and valve seat more stable.

[0017] Preferably, a base plate is fixedly installed at the bottom of the valve seat, and one side of the rubber airbag abuts against one side of the base plate.

[0018] The effect achieved by the above-mentioned components is that by setting a base plate instead of the top of the rubber airbag contacting the ground, it helps to prevent sharp objects from directly contacting the rubber airbag and damaging it.

[0019] Preferably, a first extension block is symmetrically fixedly installed on the outer surface of the base plate, and a second extension block is symmetrically fixedly installed on the outer surface of the heat insulation cover. The first extension block is inserted into the inner wall of the heat insulation cover and is magnetically attracted to the second extension block.

[0020] The effect achieved by the above components is as follows: by setting the first extension block and the second extension block, and the interior of the first extension block and the second extension block is provided with magnetic blocks, the first extension block and the second extension block will be magnetically attracted when they abut against each other, which can play an auxiliary role in fixing the heat insulation cover and the valve seat, and improve the integrity between the heat insulation cover and the valve seat.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting a rubber airbag and adjusting the degree of deformation of the rubber airbag, the outer surface of the rubber airbag can abut against the inner wall of the polyurethane pad layer of the inner wall of the insulation cover after the insulation cover is fitted onto the base. This can provide auxiliary sealing between the valve seat and the insulation cover, which helps to prevent the insulation performance of the insulation cover from being reduced by a humid environment. Attached Figure Description

[0023] Figure 1 This is a cross-sectional structural diagram of the main body of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the sealing device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This utility model Figure 2 A magnified structural diagram at point B;

[0027] Figure 5 This is a three-dimensional structural diagram of the heat insulation cover of this utility model.

[0028] Legend: 1. Valve body; 2. Valve seat; 3. Outlet pipe; 4. Insulation cover; 5. Polyurethane padding; 6. Sealing device; 61. Rubber airbag; 62. Pressure plate; 63. Cylinder; 64. Screw hole block; 65. Bolt; 66. Rubber strip; 67. Spring; 68. Round rod; 69. Raised strip; 610. Base plate; 611. First extension block; 612. Second extension block. Detailed Implementation

[0029] Example 1, referring to Figures 1-3As shown, this embodiment discloses a fire hydrant with a heat-insulating component, including a valve body 1, a valve seat 2 welded to the bottom of the valve body 1, three water outlet pipes 3 welded to the top of the outer surface of the valve body 1, a heat-insulating cover 4 covered on the outer surface of the valve body 1, the heat-insulating cover 4 being made of fiberglass, a polyurethane pad 5 installed on the inner wall of the heat-insulating cover 4, and a sealing device 6 provided between the valve seat 2 and the heat-insulating cover 4. The sealing device 6 seals between the heat-insulating cover 4 and the valve seat 2 by setting a rubber airbag 61 that can adjust the degree of deformation. By setting the rubber airbag 61 and adjusting the degree of deformation of the rubber airbag 61, after the heat-insulating cover 4 is covered on the base, the outer surface of the rubber airbag 61 can abut against the inner wall of the polyurethane pad 5 on the inner wall of the heat-insulating cover 4, thus providing an auxiliary seal between the valve seat 2 and the heat-insulating cover 4, which helps to prevent the heat-insulating performance of the heat-insulating cover 4 from being reduced by a humid environment.

[0030] Reference Figure 2 and Figure 3 As shown, the sealing device 6 includes a rubber airbag 61, which is sleeved on the outer surface of the valve seat 2. A pressure plate 62 is fixedly installed on the top of the rubber airbag 61, and a cylinder 63 is fixedly installed on the top of the pressure plate 62. The cylinder 63 is slidably installed on the outer surface of the valve body 1. Threaded blocks 64 are symmetrically fixedly installed on the top of the cylinder 63, and bolts 65 are threaded onto the inner wall of the threaded blocks 64. Pushing the cylinder 63 downward causes the pressure plate 62 to move downward. When the pressure plate 62 moves downward, it compresses the rubber airbag 61, causing the rubber airbag 61 to deform outward until the rubber airbag 61 is shaped. When the temperature is adjusted to a suitable level, that is, when the insulation cover 4 is fitted onto the base, the outer surface of the rubber airbag 61 can abut against the inner wall of the polyurethane pad 5 on the inner wall of the insulation cover 4. Then, rotate the bolt 65 so that one end of the bolt 65 passes through the screw hole block 64 and abuts against the outer surface of the valve body 1. Then, the rubber airbag 61 can fix the valve seat 2 and the insulation cover 4. Two rubber strips 66 are symmetrically installed on the outer surface of the valve body 1. The screw hole block 64 is set on one side of the rubber strip 66. By setting the rubber strip 66, the friction between the bolt 65 and the valve body 1 can be increased, making the bolt 65 less likely to loosen.

[0031] Reference Figure 2 and Figure 4As shown, a spring 67 is fixedly installed on the top of the inner wall of the cylinder 63. One end of the spring 67 is fixedly installed on the top of the valve seat 2. By setting the spring 67, rotating the nut causes one end of the nut to move away from the valve body 1. At the same time, when the cylinder 63 is not subjected to other external forces, the spring 67 will support the cylinder 63, so that the pressure plate 62 connected to the cylinder 63 is away from the bottom of the rubber airbag 61, keeping the rubber airbag 61 in its initial undeformed state. This allows the rubber airbag 61 to be supported when it is not in use, thus improving the service life of the rubber airbag 61. A round rod 68 is set inside the spring 67. One end of the round rod 68 is fixedly installed on the top of the valve seat 2. The cylinder 63 is slidably installed on the outer surface of the two round rods 68. By setting the round rods 68, the round rods 68 can limit and guide the spring 67, which helps to prevent the spring 67 from easily bending during deformation.

[0032] Reference Figure 2 As shown, the outer surface of the rubber airbag 61 is uniformly provided with several protrusions 69. By providing protrusions 69 on the outer surface of the rubber airbag 61, the friction between the rubber airbag 61 and the inner wall of the insulation cover 4 and the polyurethane pad 5 can be increased, making the seal between the rubber airbag 61 and the insulation cover 4 and the valve seat 2 more stable. A base plate 610 is fixedly installed at the bottom of the valve seat 2, and one side of the rubber airbag 61 abuts against one side of the base plate 610. By setting the base plate 610 instead of the top of the rubber airbag 61 abutting against the ground, it is beneficial to prevent sharp objects from directly contacting the rubber airbag 61 and damaging it.

[0033] Reference Figure 5 As shown, a first extension block 611 is symmetrically fixedly installed on the outer surface of the base plate 610, and a second extension block 612 is symmetrically fixedly installed on the outer surface of the heat insulation cover 4. The first extension block 611 is inserted into the inner wall of the heat insulation cover 4 and is magnetically attracted to the second extension block 612. By setting the first extension block 611 and the second extension block 612, and by setting magnetic blocks inside both the first extension block 611 and the second extension block 612, when the first extension block 611 and the second extension block 612 abut against each other, the first extension block 611 and the second extension block 612 will be magnetically attracted, which can play an auxiliary fixing role between the heat insulation cover 4 and the valve seat 2, and improve the integrity between the heat insulation cover 4 and the valve seat 2.

[0034] Working principle: Pushing the cylinder 63 downwards causes the pressure plate 62 to move downwards, simultaneously compressing the spring 67 and causing it to deform. As the pressure plate 62 moves downwards, due to the limitation of the base plate 610, it compresses the rubber airbag 61, causing it to deform outwards until the airbag 61 deforms to the appropriate degree (i.e., when the insulation cover 4 is fitted onto the base, the outer surface of the rubber airbag 61 can abut against the inner wall of the polyurethane pad 5 of the insulation cover 4). Then, rotate the bolt 65 so that one end of the bolt 65 passes through the screw hole block 64, abutting against the rubber strip 66 on the outer surface of the valve body 1. Finally, fit the insulation cover 4 onto the outer surface of the valve body 1, causing the rubber... The outer surface of the airbag 61 abuts against the inner wall of the polyurethane pad 5, and the first extension block 611 enters the inner wall of the insulation cover 4 and abuts against the second extension block 612. The first extension block 611 and the second extension block 612 will be magnetically attracted to each other, which can play an auxiliary role in fixing the insulation cover 4 and the valve seat 2. The rubber airbag 61 can fix and assist in sealing the valve seat 2 and the insulation cover 4. When the insulation cover 4 is removed, the nut is rotated so that one end of the nut is away from the valve body 1. The spring 67 will return to its original position and drive the pressure plate 62 connected to the cylinder 63 away from the bottom of the rubber airbag 61, so that the rubber airbag 61 is kept in the initial undeformed state. This can support the rubber airbag 61 when it is not in use and improve the service life of the rubber airbag 61.

Claims

1. A hydrant with thermal insulation member, comprising a valve body (1), characterized in that: A valve seat (2) is welded to the bottom of the valve body (1), and three water outlet pipes (3) are welded to the top of the outer surface of the valve body (1). A heat insulation cover (4) is fitted on the outer surface of the valve body (1). The heat insulation cover (4) is made of fiberglass. A polyurethane pad (5) is installed on the inner wall of the heat insulation cover (4). A sealing device (6) is provided between the valve seat (2) and the heat insulation cover (4). The sealing device (6) seals the heat insulation cover (4) and the valve seat (2) by setting a rubber airbag (61) that can adjust the degree of deformation.

2. The hydrant with a thermal retaining member according to claim 1, wherein: The sealing device (6) includes a rubber airbag (61), which is sleeved on the outer surface of the valve seat (2). A pressure plate (62) is fixedly installed on the top of the rubber airbag (61), and a cylinder (63) is fixedly installed on the top of the pressure plate (62). The cylinder (63) is slidably installed on the outer surface of the valve body (1). A screw hole block (64) is symmetrically fixedly installed on the top of the cylinder (63), and a bolt (65) is threadedly connected to the inner wall of the screw hole block (64).

3. The hydrant of claim 2, wherein: Two rubber strips (66) are symmetrically installed on the outer surface of the valve body (1), and the screw hole block (64) is located on one side of the rubber strips (66).

4. A fire hydrant with a thermal insulation component according to claim 2, characterized in that: A spring (67) is fixedly installed on the top of the inner wall of the cylinder (63), and one end of the spring (67) is fixedly installed on the top of the valve seat (2).

5. A hydrant with a thermal retention member according to claim 4, wherein: The spring (67) has a round rod (68) inside, one end of which is fixedly installed on the top of the valve seat (2), and the cylinder (63) is slidably installed on the outer surface of the two round rods (68).

6. The hydrant of claim 2, wherein: The outer surface of the rubber airbag (61) is uniformly provided with several raised strips (69).

7. The hydrant of claim 2, wherein: A base plate (610) is fixedly installed at the bottom of the valve seat (2), and one side of the rubber airbag (61) abuts against one side of the base plate (610).

8. A hydrant with a thermal retention member according to claim 7, wherein: The outer surface of the base plate (610) is symmetrically fixed with a first extension block (611), and the outer surface of the heat insulation cover (4) is symmetrically fixed with a second extension block (612). The first extension block (611) is inserted into the inner wall of the heat insulation cover (4) and is magnetically attracted to the second extension block (612).

Images