Small-flow-path civil gate valve

Abstract

The utility model discloses a civil gate valve with a small flow path, which relates to the technical field of valves, and comprises a device main body, two ends of the device main body are both fixedly connected with ports, the two ports are both provided with flange plates, and the civil gate valve with the small flow path is further provided with an extension mechanism. Comprising two moving cylinders, four springs and four long rods, a worker pulls a flange plate, the flange plate drives the moving cylinders to move, at the moment, the springs are compressed, the moving cylinders drive the long rods to move when moving, but fixing blocks cannot move along with the moving cylinders and the long rods, and after it is known that the moving cylinders move by a certain distance, the fixing blocks are fixed. The movable cylinder can be propped by the fixed block and the spring, so that the problem that the valve cannot completely cover or is connected to the tail ends of the two pipelines due to the fact that the distance between the two pipelines exceeds the design range of the valve is avoided, the small-flow-path civil gate valve can adapt to various pipelines with different distances, and the adaptability of the small-flow-path civil gate valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a small-diameter civil gate valve. Background Art

[0002] Small-diameter civil gate valve is a valve designed for civil water supply systems. It is mainly used for pipes with smaller diameters, usually between DN15 and DN50. It is suitable for use in water supply systems of homes and small commercial buildings. In most cases, manual operation is required to open or close the valve or adjust the valve opening by rotating the valve stem. Small-diameter civil gate valves are mainly made of durable materials such as cast iron, copper alloy or stainless steel to ensure that the valve is not affected by corrosion during long-term use and to ensure the safe and reliable operation of the water supply system.

[0003] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0004] Different spacing between two pipes may cause the small flow path civil gate valve to be unable to accurately connect the two pipes. During the actual installation process, there may be differences in the end space or installation position of the pipes, which will affect the installation and connection of the valve. Small flow path civil gate valves are usually designed for pipes with smaller diameters, so their length is shorter to accommodate the size of these pipes. If the distance between the two pipes exceeds the design range of the valve, it may cause the valve to be unable to fully cover or connect to the ends of the two pipes. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a small-diameter civil gate valve, which solves the technical problem that if the distance between two pipes exceeds the design range of the valve, the valve may not be able to completely cover or connect to the ends of the two pipes.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A small-flow-path civil gate valve comprises a device body, both ends of which are fixedly connected with ports, both ports are provided with flanges, and the small-flow-path civil gate valve is also provided with an extension mechanism, comprising two movable cylinders, four springs and four long rods, both movable cylinders are movably connected inside the two ports, both movable cylinders are fixedly connected with the two flanges, long grooves are penetrated through the upper and lower ends of the two movable cylinders, fixed blocks are provided inside the two long grooves, each fixed block is fixedly connected with the inner wall of the corresponding port, each fixed block is penetrated with a hole on the right surface, the four long rods are movably connected with the fixed block through the hole, the four springs are located inside the four long grooves, the four long rods are located inside the four springs, and each spring is located at one end of the fixed block facing the device body.

[0010] Preferably, one end of the two movable cylinders facing the device body is fixedly connected with a rubber ring, and the two rubber rings are movably sleeved with the inner walls of the corresponding ports.

[0011] Preferably: both front and rear ends of the two ports are fixedly connected with a second fixing frame, and both front and rear ends of the device body are fixedly connected with a first fixing frame.

[0012] Preferably: connecting columns are provided inside the two fixing frames, one end of the two connecting columns is fixedly connected to the front and rear ends of the device body, and the ends of the two connecting columns away from the device body are fixedly connected to the inner wall of the fixing frame.

[0013] Preferably, the two connecting columns are fixedly connected with rotating gears, and the upper and lower ends of the two rotating gears are meshedly connected with gear bars.

[0014] Preferably, the two fixing frames 2 located on the left side are fixedly connected to the two gear bars at the lower end, and the two fixing frames 2 located on the right side are fixedly connected to the two gear bars at the upper end.

[0015] (III) Beneficial effects

[0016] 1. The staff pulls the flange, and the flange drives the moving cylinder to move. At this time, the spring is compressed, and the moving cylinder will drive the long rod to move when it moves, but the fixed block will not move with the movement of the moving cylinder and the long rod. After the moving cylinder moves to a certain distance, the moving cylinder will be held back by the fixed block and the spring, making it impossible for the moving cylinder to move forward. Since the rubber ring is movably connected to the port and the rubber ring is fixedly connected to the moving cylinder, the moving cylinder that moves forward will achieve the purpose of extending the small-diameter civil gate valve, avoiding the problem that the distance between the two pipes exceeds the design range of the valve, which may cause the valve to be unable to fully cover or connect to the ends of the two pipes, so that the small-diameter civil gate valve can be adapted to pipes with a variety of different spacings, thereby improving the adaptability of the small-diameter civil gate valve.

[0017] 2. When the staff pulls the moving cylinder at one end, the corresponding fixed frame 2 will also drive the corresponding gear bar to move. Since the gear bar is meshed with the rotating gear, the two rotating gears will continue to rotate when the gear bar moves, and the two rotating gears will drive the two gear bars on the other side to move, so as to achieve the purpose of moving the moving cylinders on both sides at the same time. The moving cylinders on both sides move at the same time, so that the staff does not need to repeat the adjustment of the other side of the small flow path civil gate valve, which simplifies the adjustment process of the small flow path civil gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0019] Figure 1 It is a structural diagram of the entire utility model;

[0020] Figure 2 This is a structural diagram of the port and the moving cylinder of the utility model;

[0021] Figure 3 This is a structural diagram of the fixed block and the spring of the utility model;

[0022] Figure 4 It is a structural diagram of the interior of the fixing frame 1 and the fixing frame 2 of the utility model.

[0023] Legend: 1. Device body; 2. Port; 3. Flange; 4. Fixed frame 1; 5. Fixed frame 2; 6. Fixed block; 7. Moving cylinder; 8. Long groove; 9. Hole; 10. Rubber ring; 11. Spring; 12. Long rod; 13. Gear bar; 14. Connecting column; 15. Rotating gear. DETAILED DESCRIPTION

[0024] The embodiment of the present application provides a small-diameter civil gate valve, which effectively solves the technical problem that if the distance between two pipes exceeds the design range of the valve, the valve may not be able to fully cover or connect to the ends of the two pipes. The staff pulls the flange, and the flange drives the moving cylinder to move. At this time, the spring is compressed, and the moving cylinder drives the long rod to move when moving, but the fixed block does not move with the movement of the moving cylinder and the long rod. After the moving cylinder moves to a certain distance, the moving cylinder will be held back by the fixed block and the spring, so that the moving cylinder cannot continue to move forward. Since the rubber ring is movably connected to the port and the rubber ring is fixedly connected to the moving cylinder, the moving cylinder that moves forward can achieve the purpose of extending the small-diameter civil gate valve, avoiding the problem that the distance between the two pipes exceeds the design range of the valve, which may cause the valve to be unable to fully cover or connect to the ends of the two pipes. The small-diameter civil gate valve can be adapted to pipes with a variety of different spacings, thereby improving the adaptability of the small-diameter civil gate valve.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that if the distance between the two pipes exceeds the design range of the valve, the valve may not be able to completely cover or connect to the ends of the two pipes. The overall idea is as follows:

[0027] In view of the problems existing in the prior art, the utility model provides a small-diameter civil gate valve, including a device body 1, both ends of the device body 1 are fixedly connected with ports 2, and the two ports 2 are provided with flanges 3. The small-diameter civil gate valve is also provided with an extension mechanism, including two moving cylinders 7, four springs 11 and four long rods 12. The two moving cylinders 7 are movably connected inside the two ports 2, and the two moving cylinders 7 are fixedly connected to the two flanges 3. Long grooves 8 are penetrated at the upper and lower ends of the two moving cylinders 7, and fixed blocks 6 are provided inside the two long grooves 8. Each fixed block 6 is fixedly connected to the inner wall of the corresponding port 2, and a hole 9 is penetrated on the right surface of each fixed block 6. The four long rods 12 are movably sleeved with the fixed block 6 through the hole 9, and the four springs 11 are located inside the four long grooves 8. The four long rods 12 are all located inside the four springs 11, and each spring 11 is located at one end of the fixed block 6 facing the device body 1, and the two moving cylinders 7 are fixedly connected to one end of the device body 1 with a rubber ring 10, and the two rubber rings 10 are movably connected to the inner wall of the corresponding port 2. The staff pulls the flange 3, and the flange 3 drives the moving cylinder 7 to move. At this time, the spring 11 is compressed, and the moving cylinder 7 will drive the long rod 12 to move when it moves, but the fixed block 6 will not move with the movement of the moving cylinder 7 and the long rod 12. After the moving cylinder 7 moves to a certain distance, the moving cylinder 7 will be resisted by the fixed block 6 and the spring 11, so that the moving cylinder 7 cannot continue to move forward. Since the rubber ring 10 is movably connected to the port 2, and the rubber ring 10 is fixedly connected to the moving cylinder 7, the moving cylinder 7 that moves forward will achieve the purpose of extending the small flow path civil gate valve.

[0028] The front and rear ends of the two ports 2 are fixedly connected with a fixing frame 2 5, the front and rear ends of the device body 1 are fixedly connected with a fixing frame 1 4, and connecting columns 14 are arranged inside the two fixing frames 14, one end of the two connecting columns 14 is fixedly connected to the front and rear ends of the device body 1, and the ends of the two connecting columns 14 facing away from the device body 1 are fixedly connected to the inner wall of the fixing frame 4, avoiding the problem that the distance between the two pipes exceeds the design range of the valve, which may cause the valve to be unable to fully cover or connect to the ends of the two pipes, so that the small-diameter civil gate valve can be adapted to pipes with a variety of different distances, thereby improving the adaptability of the small-diameter civil gate valve.

[0029] The two connecting columns 14 are fixedly connected with a rotating gear 15, and the upper and lower ends of the two rotating gears 15 are meshed with gear bars 13. The two fixed frames 25 on the left are fixedly connected with the two gear bars 13 at the lower end, and the two fixed frames 25 on the right are fixedly connected with the two gear bars 13 at the upper end. When the staff pulls the moving cylinder 7 at one end, the corresponding fixed frame 25 will also drive the corresponding gear bar 13 to move. Since the gear bar 13 is meshed with the rotating gear 15, when the gear bar 13 moves, the two rotating gears 15 will continue to rotate, and the two rotating rotating gears 15 will drive the two gear bars 13 on the other side to move, so as to achieve the purpose of moving the moving cylinders 7 on both sides at the same time. The simultaneous movement of the moving cylinders 7 on both sides makes it unnecessary for the staff to repeatedly adjust the other side of the small-diameter civil gate valve, thereby simplifying the adjustment process of the small-diameter civil gate valve.

[0030] Working principle:

[0031] The staff pulls the flange 3, and the flange 3 drives the moving cylinder 7 to move. At this time, the spring 11 is compressed, and the moving cylinder 7 drives the long rod 12 to move when moving, but the fixed block 6 does not move with the movement of the moving cylinder 7 and the long rod 12. After the moving cylinder 7 moves to a certain distance, the moving cylinder 7 is resisted by the fixed block 6 and the spring 11, so that the moving cylinder 7 cannot move forward. Since the rubber ring 10 is movably connected with the port 2, and the rubber ring 10 is fixedly connected with the moving cylinder 7, the moving cylinder 7 that moves forward can achieve the purpose of extending the small-diameter civil gate valve, avoiding the distance between the two pipes exceeding the design range of the valve, which may cause the valve to be unable to fully cover or connect to the two pipes. The problem of the end is solved, so that the small-diameter civil gate valve can be adapted to a variety of pipes with different spacings, thereby improving the adaptability of the small-diameter civil gate valve. When the staff pulls the moving cylinder 7 at one end, the corresponding fixed frame 25 will also drive the corresponding gear bar 13 to move. Since the gear bar 13 is engaged with the rotating gear 15, when the gear bar 13 moves, the two rotating gears 15 will continue to rotate, and the two rotating rotating gears 15 will drive the two gear bars 13 on the other side to move, thereby achieving the purpose of moving the moving cylinders 7 on both sides at the same time. The simultaneous movement of the moving cylinders 7 on both sides makes it unnecessary for the staff to repeatedly adjust the other side of the small-diameter civil gate valve, thereby simplifying the adjustment process of the small-diameter civil gate valve.

[0032] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A small-diameter civil gate valve, comprising a device body (1), both ends of the device body (1) are fixedly connected with ports (2), and both ports (2) are provided with flanges (3), characterized in that: The small-diameter civil gate valve is also provided with an extension mechanism, comprising two moving cylinders (7), four springs (11) and four long rods (12); The two movable cylinders (7) are movably connected inside the two ports (2), the two movable cylinders (7) are fixedly connected to the two flanges (3), the upper and lower ends of the two movable cylinders (7) are penetrated with long grooves (8), the two long grooves (8) are provided with fixed blocks (6), each of the fixed blocks (6) is fixedly connected to the inner wall of the corresponding port (2), the right surface of each fixed block (6) is penetrated with a hole (9), the four long rods (12) are movably connected with the fixed blocks (6) through the holes (9), and the four springs (11) are located inside the four long grooves (8).

2. A small flow diameter civil gate valve as claimed in claim 1, characterized in that: The ends of the two movable cylinders (7) facing the device body (1) are both fixedly connected with a rubber ring (10); Wherein, the two rubber rings (10) are movably sleeved on the inner walls of the corresponding ports (2).

3. A small flow diameter civil gate valve as claimed in claim 2, characterized in that: The front and rear ends of the two ports (2) are fixedly connected to a second fixing frame (5); Wherein, both the front and rear ends of the device body (1) are fixedly connected to a fixing frame 1 (4).

4. A small flow diameter civil gate valve as claimed in claim 3, characterized in that: The two fixing frames (4) are each provided with a connecting column (14) inside, and one end of the two connecting columns (14) is fixedly connected to the front and rear ends of the device body (1); Wherein, the ends of the two connecting columns (14) facing away from the device body (1) are fixedly connected to the inner wall of the fixing frame 1 (4).

5. A small flow diameter civil gate valve as claimed in claim 4, characterized in that: The two connecting columns (14) are both fixedly connected with a rotating gear (15); Wherein, the upper and lower ends of the two rotating gears (15) are meshedly connected with gear bars (13).

6. A small flow diameter civil gate valve as claimed in claim 5, characterized in that: The two fixed frames (5) located on the left side are fixedly connected to the two gear bars (13) at the lower end; The two second fixing frames (5) located on the right side are fixedly connected to the two gear bars (13) at the upper end.

Images