Groove type fire-fighting signal gate valve

Abstract

The utility model belongs to the technical field of groove type gate valves, and particularly relates to a groove type fire-fighting signal gate valve which comprises a first connecting pipe, a second connecting pipe, a valve body and a valve plate, through holes and through grooves allowing the valve plate to pass through are formed in the connecting positions of the first connecting pipe and the valve body and the connecting positions of the second connecting pipe and the valve body, inclined planes are sectioned on the valve plate, and the valve plate is matched with the through grooves. A sealing connecting plate is arranged at the bottom of the valve plate, a first connecting rod is arranged at the top of the valve plate, a sliding sealing plate located in the valve body is installed at the top of the first connecting rod, a threaded rod is arranged at the top of the sliding sealing plate, and a first sealing rod corresponding to the through hole in position is arranged at the bottom of the sliding sealing plate. And a second sealing rod corresponding to the through hole in position is arranged at the top of the sealing connecting plate. The device can prevent water from making contact with the threaded rod to damage the threaded rod, and the service life of the threaded rod is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial circulating water treatment equipment, and specifically relates to a groove type fire signal gate valve. Background Art

[0002] Grooved gate valve is a control valve used in pipeline systems. It uses a groove connection method, by forming a groove on the outside of the pipeline, using a sealing ring and bolts to connect the gate valve to the pipeline. Grooved gate valves are usually used in building water supply and drainage, industrial pipeline systems, fire protection systems and other fields to control the flow, pressure and direction of the fluid. It has the advantages of compact structure, flexible operation, reliable sealing, etc., and is one of the common control components in pipeline systems.

[0003] In the prior art, a grooved gate valve generally includes a first connecting pipe, a second connecting pipe, a valve body, a valve plate and other components. A through groove is provided at the connection between the first connecting pipe and the second connecting pipe and the valve body so that the valve plate can pass through. The valve plate is cut with an inclined surface. Such a design can achieve a throttling effect when the valve plate moves upward. However, when the threaded rod drives the valve plate to move and the valve plate opens, water will enter the valve body due to the gap between the valve plate and the through groove. In addition, the threaded rod inside the valve body will be corroded by the entering water.

[0004] In addition, when the valve plate moves down to seal, the water inside the valve body cannot be quickly discharged, forming water accumulation, which will aggravate the corrosion of the threaded rod. Over time, the damage to the threaded rod will affect the normal operation of the gate valve and reduce its service life.

[0005] To this end, we propose a grooved fire signal gate valve, which can isolate water from contacting the threaded rod, causing damage to the threaded rod, and improve the service life of the threaded rod. Utility Model Content

[0006] The utility model aims to provide a groove type fire signal gate valve, which can isolate water from contacting with a threaded rod, thereby preventing the threaded rod from being damaged and prolonging the service life of the threaded rod.

[0007] The technical solutions adopted in this utility are as follows:

[0008] A grooved fire signal gate valve comprises a first connecting pipe, a second connecting pipe, a valve body and a valve plate, wherein the first connecting pipe and the second connecting pipe are connected to the valve body with through holes and a through groove for the valve plate to pass through;

[0009] The valve plate is cut with an inclined surface, the valve plate matches the through groove, a sealing connecting plate is arranged at the bottom of the valve plate, and a first connecting rod is arranged at the top of the valve plate, a sliding sealing plate located inside the valve body is installed at the top of the first connecting rod, and a threaded rod is arranged at the top of the sliding sealing plate;

[0010] A first sealing rod corresponding to the position of the through hole is arranged at the bottom of the sliding sealing plate, and a second sealing rod corresponding to the position of the through hole is arranged at the top of the sealing connection plate.

[0011] Furthermore, grooves are formed on the first connecting tube and the second connecting tube.

[0012] Furthermore, the valve body is cylindrical, and the sealing connecting plate is arranged inside the valve body to match it.

[0013] Furthermore, a valve cover is arranged on the top of the valve body, a threaded sleeve with threads is arranged on the top of the valve cover, and the threaded rod is arranged inside the threaded sleeve.

[0014] Furthermore, grooves are provided on both sides of the valve plate, springs are provided inside the grooves, and one side of the springs is connected to the bonding plate.

[0015] Furthermore, the first sealing rod and the second sealing rod match the through hole.

[0016] The technical effects achieved by this utility model are:

[0017] First, the entire device is connected to the external pipeline through the first connecting pipe and the second connecting pipe, and then the valve plate is driven to move up or down through the rotation of the threaded rod to open and seal the entire device, so that water can flow or be closed. When the valve plate moves up, the sealing connecting plate is driven to move up, so that the through groove is sealed through the sealing connecting plate. At the same time, when the sealing connecting plate moves up, the second sealing rod enters the through hole, so as to prevent water from entering the valve body and perform primary waterproofing. When the valve plate moves up, the sliding sealing plate is driven to move up, so that the threaded rod is isolated from the incoming water, so as to achieve secondary sealing. When the valve plate moves down, the valve plate drives the sliding sealing plate and the connecting sealing plate to move down, and the sliding sealing plate squeezes the incoming water so that it is discharged through the through hole, so that the water is quickly discharged, thereby isolating the water from direct contact with the threaded rod. The device can isolate water from contacting the threaded rod, causing damage to the threaded rod, and improve the service life of the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model when the valve plate is opened;

[0021] Figure 4 It is a structural schematic diagram of the valve plate of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. First connecting pipe; 2. Second connecting pipe; 3. Valve body; 4. Valve plate; 5. Through hole; 6. Through groove; 7. Sealing connecting plate; 8. Sliding sealing plate; 9. Threaded rod; 10. First sealing rod; 11. Second sealing rod; 12. Groove; 13. Valve cover; 14. Threaded sleeve; 15. Groove body; 16. Spring; 17. Fitting plate. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0025] like Figure 1-4 As shown, the technical solution adopted by the utility model is as follows: a groove 12-type fire signal gate valve, comprising a first connecting pipe 1, a second connecting pipe 2, a valve body 3 and a valve plate 4, wherein the connection between the first connecting pipe 1 and the second connecting pipe 2 and the valve body 3 is provided with a through groove 6 and a through hole 5 for the valve plate 4 to pass through;

[0026] The valve plate 4 is cut with an inclined surface, the valve plate 4 matches the through groove 6, a sealing connecting plate 7 is arranged at the bottom of the valve plate 4, and a first connecting rod is arranged at the top of the valve plate 4, a sliding sealing plate 8 located inside the valve body 3 is installed on the top of the first connecting rod, and a threaded rod 9 is arranged on the top of the sliding sealing plate 8;

[0027] A first sealing rod 10 corresponding to the position of the through hole 5 is arranged at the bottom of the sliding sealing plate 8 , and a second sealing rod 11 corresponding to the position of the through hole 5 is arranged at the top of the sealing connecting plate 7 .

[0028] Its working principle is: first, the whole device is connected to the external pipeline through the first connecting pipe 1 and the second connecting pipe 2, and then the valve plate 4 is driven to move up or down by the rotation of the threaded rod 9 to open and seal the whole device, so that water can flow or be closed. In the prior art, when the valve plate 4 is opened, since the valve plate 4 has an inclined surface, such a setting can achieve a throttling effect. However, when the valve plate 4 moves up, water flows but there is a gap between the valve plate 4 and the through groove 6. At this time, water will enter the valve body 3. Since the threaded rod 9 is arranged inside the valve body 3, the water will corrode the threaded rod 9. At the same time, when the valve plate 4 moves down, the valve plate 4 seals the through groove 6, resulting in the water inside the valve body 3 cannot be quickly discharged to form water accumulation. When the valve plate 4 moves upward, it will continue to corrode the threaded rod 9, and after a long time, the threaded rod 9 will be damaged. In the utility model, when the valve plate 4 moves upward, the sealing connecting plate 7 is driven upward, so that the through groove 6 is sealed by the sealing connecting plate 7. At the same time, when the sealing connecting plate 7 moves upward, the second sealing rod 11 enters the through hole 5, thereby preventing water from entering the valve body 3 for primary waterproofing. When the valve plate 4 moves upward, it drives the sliding sealing plate 8 to move upward, so that the threaded rod 9 is isolated from the incoming water, thereby achieving secondary sealing. When the valve plate 4 moves downward, the valve plate 4 drives the sliding sealing plate 8 and the connecting sealing plate to move downward, and the sliding sealing plate 8 squeezes the incoming water so that the through hole 5 is discharged, so that the water is quickly discharged, thereby isolating the water from direct contact with the threaded rod 9. The device can isolate water from contacting the threaded rod 9, causing damage to the threaded rod 9, and improve the service life of the threaded rod 9.

[0029] The first connecting pipe 1 and the second connecting pipe 2 are provided with grooves 12, and the grooves 12 facilitate connection and disassembly with external pipes.

[0030] Meanwhile, the valve body 3 is cylindrical, and a sealing connecting plate 7 is arranged inside the valve body 3 to match it. Matching here means that the sealing connecting plate 7 can move inside the valve body 3 and perform sealing.

[0031] In order to improve the sealing performance of the sealing connecting plate 7, a piston is provided on the sealing connecting plate 7, and the sealing performance thereof can be improved by the piston. The piston is similar to a rubber piston pad in the prior art, and belongs to the prior art and will not be described in detail here.

[0032] A valve cover 13 is arranged on the top of the valve body 3 , a threaded sleeve 14 with threads is arranged on the top of the valve cover 13 , a threaded rod 9 is arranged inside the threaded sleeve 14 , and the valve cover 13 is used for sealing, and the threaded rod 9 can be rotated through the threaded sleeve 14 .

[0033] Grooves 15 are provided on both sides of the valve plate 4, and springs 16 are provided inside the grooves 15. One side of the spring 16 is connected to a fitting plate 17. This arrangement enables the fitting plate 17 to always fit and seal against the inner wall of the through groove 6 through the elastic force of the spring 16 when the valve plate 4 moves. This arrangement can prevent water from entering the valve body 3 when the valve plate 4 moves, thereby achieving three-level waterproofing.

[0034] The shape of the fitting plate 17 is the same as that of the valve plate 4 , and such a configuration enables the fitting plate 17 to be matched with the through groove 6 , thereby enabling movable sealing.

[0035] It should be noted that the fitting plate 17 will not slide out of the groove body 15, and will always be located inside the groove body 15 regardless of whether the valve plate 4 moves up or down. This arrangement can ensure the effect of the valve plate 4. At the same time, when the valve plate 4 moves up, the fitting plate 17 is always fitted with the inner wall of the through groove 6 through the elastic force compensation of the spring 16, thereby preventing water from entering the valve body 3. When the valve plate 4 moves down and is located inside the first connecting pipe 1 and the second connecting pipe 2, half of the fitting plate 17 remains in the groove body 15 and the other half extends out, thereby not affecting the operation of the valve plate 4.

[0036] The first sealing rod 10 and the second sealing rod 11 match with the through hole 5. Matching here means that both the first sealing rod 10 and the second sealing rod 11 can enter the through hole 5 to seal or open, thereby preventing water from entering or quickly draining water.

[0037] The working principle of the utility model is as follows: firstly, the whole device is connected to the external pipeline through the first connecting pipe 1 and the second connecting pipe 2, and then the valve plate 4 is driven to move up or down by the rotation of the threaded rod 9 to open and seal the whole device, so that water can flow or be closed. In the prior art, when the valve plate 4 is opened, since the valve plate 4 has an inclined surface, such a setting can achieve a throttling effect. However, when the valve plate 4 moves up, water flows but there is a gap between the valve plate 4 and the through groove 6. At this time, water will enter the inside of the valve body 3. Since the threaded rod 9 is arranged inside the valve body 3, the water will corrode the threaded rod 9. At the same time, when the valve plate 4 moves down, the valve plate 4 seals the through groove 6, resulting in that the water inside the valve body 3 cannot be quickly discharged to form accumulated water. This The threaded rod 9 will continue to corrode over time, and the threaded rod 9 will be damaged over time. In the present invention, when the valve plate 4 moves up, the sealing connecting plate 7 is driven to move up, so that the through groove 6 is sealed by the sealing connecting plate 7. At the same time, when the sealing connecting plate 7 moves up, the second sealing rod 11 enters the through hole 5, thereby preventing water from entering the valve body 3 for primary waterproofing. When the valve plate 4 moves up, the sliding sealing plate 8 is driven to move up, so that the threaded rod 9 is isolated from the incoming water, thereby achieving secondary sealing. When the valve plate 4 moves down, the valve plate 4 drives the sliding sealing plate 8 and the connecting sealing plate to move down, and the sliding sealing plate 8 squeezes the incoming water so that the through hole 5 is discharged, so that the water is quickly discharged, thereby isolating the water from direct contact with the threaded rod 9. The device can isolate water from contacting the threaded rod 9, causing damage to the threaded rod 9, and improve the service life of the threaded rod 9.

[0038] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A grooved fire signal gate valve, comprising a first connecting pipe (1), a second connecting pipe (2), a valve body (3) and a valve plate (4), wherein the first connecting pipe (1) and the second connecting pipe (2) are connected to the valve body (3) with a through hole (5) and a through groove (6) for the valve plate (4) to pass through; Features: The valve plate (4) is cut with an inclined surface, the valve plate (4) matches the through groove (6), a sealing connecting plate (7) is arranged at the bottom of the valve plate (4), and a first connecting rod is arranged at the top of the valve plate (4), a sliding sealing plate (8) located inside the valve body (3) is installed at the top of the first connecting rod, and a threaded rod (9) is arranged at the top of the sliding sealing plate (8); A first sealing rod (10) corresponding to the position of the through hole (5) is arranged at the bottom of the sliding sealing plate (8), and a second sealing rod (11) corresponding to the position of the through hole (5) is arranged at the top of the sealing connection plate (7).

2. A grooved fire signal gate valve according to claim 1, characterized in that: The first connecting pipe (1) and the second connecting pipe (2) are provided with grooves (12).

3. A grooved fire signal gate valve according to claim 1, characterized in that: The valve body (3) is cylindrical, and the sealing connection plate (7) is arranged inside the valve body (3) to match it.

4. A grooved fire signal gate valve according to claim 1, characterized in that: A valve cover (13) is arranged on the top of the valve body (3), a threaded sleeve (14) with threads is arranged on the top of the valve cover (13), and the threaded rod (9) is arranged inside the threaded sleeve (14).

5. A grooved fire signal gate valve according to claim 1, characterized in that: Grooves (15) are provided on both sides of the valve plate (4), a spring (16) is arranged inside the groove (15), and one side of the spring (16) is connected to a bonding plate (17).

6. A grooved fire signal gate valve according to claim 1, characterized in that: The first sealing rod (10) and the second sealing rod (11) match the through hole (5).

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