Adjustable stop valve

Abstract

The utility model relates to the technical field of stop valves, in particular to an adjustable stop valve which comprises a valve body, a first fixing rod, a first threaded rod, a flow guide plate, a valve clack, a valve seat and a sliding rod, the top of the valve body is fixedly connected with the first fixing rod, the first fixing rod is in threaded connection with the first threaded rod, and the bottom of the first threaded rod is fixedly connected with the flow guide plate. The bottom of the flow guide plate is fixedly connected with a valve clack, the valve clack is connected with a valve seat in a clamped mode, the valve seat is installed in the valve body, and the first threaded rod, the flow guide plate and the valve clack are connected with a sliding rod in a sliding mode. The flow guide plate and the sliding rod are arranged, the water outlet amount of the valve can be adjusted through the flow guide plate and the sliding rod, accurate adjustment of the flow is achieved, and use is convenient. The stop valve is provided with the sealing ring, it is guaranteed that when the valve clack is closed, water flow cannot seep from a gap between the valve clack and the sliding rod, the sealing performance of the stop valve is guaranteed, the safety of the stop valve is improved, and the stop valve is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of stop valves, and in particular relates to an adjustable stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem must be larger, otherwise the valve stem will bend. There are three types of connection methods: flange connection, threaded connection, and welding connection.

[0003] However, the existing stop valve does not have the function of regulating the water flow rate. The existing stop valve often has only two states: open and closed. The water flow rate after the valve is opened cannot be adjusted, which is inconvenient to use. Therefore, an adjustable stop valve is urgently needed to solve the above problem. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide an adjustable stop valve to solve the problem that the existing stop valve mentioned in the above-mentioned background technology does not have the function of regulating the water flow rate, the existing stop valve often has only two states, open and closed, and cannot regulate the water flow rate after the valve is opened, which is inconvenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable stop valve, comprising a valve body, a fixed rod, a threaded rod, a guide plate, a valve disc, a valve seat and a sliding rod, the top of the valve body is fixedly connected to the fixed rod, the fixed rod is threadedly connected to the threaded rod, the bottom of the threaded rod is fixedly connected to the guide plate, the bottom of the guide plate is fixedly connected to the valve disc, the valve disc is clamped on the valve seat, the valve seat is installed in the valve body, and the threaded rod, the guide plate and the valve disc are slidably connected to the sliding rod.

[0006] Preferably, guide holes are opened on the right side of the guide plate, and the guide holes are arranged in two rows with five holes in each row.

[0007] Preferably, the inner wall of the valve disc is fixedly connected to a sealing ring.

[0008] Preferably, the top of the valve body is fixedly connected to four bolts, the tops of the four bolts are fixedly connected to a fixing ring, and the fixing ring is slidably connected to the fixing rod 2.

[0009] Preferably, the top of the threaded rod one is fixedly connected to the fixed rod two, and the top outer wall of the fixed rod two is fixedly connected to the hand wheel.

[0010] Preferably, the valve seat is fixedly connected to the inner wall of the sealing seat, and the sealing seat is fixedly connected to the inner wall of the valve body.

[0011] Preferably, the top of the sliding rod is fixedly connected to the second threaded rod, the second threaded rod is threadedly connected to the second fixed rod, and the top of the second threaded rod is fixedly connected to the handle.

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

[0013] 1. This adjustable stop valve is provided with a guide plate and a sliding rod. When the water flow rate needs to be adjusted, the valve disc is closed and the handle is turned to make the handle drive the second threaded rod to rotate. Since the second threaded rod is threadedly connected to the second fixed rod, the second threaded rod drives the sliding rod to move upward, so that the sliding rod no longer blocks the guide hole of the guide plate, so that the water flows through the guide hole, and the water output of the guide plate is controlled by the rising height of the sliding rod. The water output of the valve can be adjusted by the guide plate and the sliding rod, so as to achieve precise adjustment of the flow rate and facilitate use.

[0014] 2. This adjustable stop valve is provided with a sealing ring. A sealing ring is installed on the inner wall of the valve disc, which ensures that when the valve disc is closed, water will not seep out from the gap between the valve disc and the sliding rod, thereby ensuring the sealing of the stop valve, improving the safety of the stop valve, and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front perspective schematic diagram of the utility model;

[0016] Figure 2 This is a front cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the explosion structure of the valve body of the utility model;

[0019] Figure 5 It is a schematic diagram of the explosion structure of the second fixing rod of the utility model.

[0020] In the figure: 1. valve body; 2. fixing rod 1; 3. handwheel; 4. fixing rod 2; 5. threaded rod 1; 6. guide plate; 61. guide hole; 7. valve disc; 8. sealing ring; 9. valve seat; 10. sealing seat; 11. handle; 12. threaded rod 2; 13. sliding rod; 14. bolt; 15. fixing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an embodiment: an adjustable stop valve, including a valve body 1, a fixed rod 2, a threaded rod 5, a guide plate 6, a valve disc 7, a valve seat 9 and a sliding rod 13. The top of the valve body 1 is fixedly connected to the fixed rod 2, the fixed rod 2 is threadedly connected to the threaded rod 5, the bottom of the threaded rod 5 is fixedly connected to the guide plate 6, the bottom of the guide plate 6 is fixedly connected to the valve disc 7, the valve disc 7 is clamped with the valve seat 9, the valve seat 9 is installed in the valve body 1, the threaded rod 5, the guide plate 6 and the valve disc 7 are slidably connected to the sliding rod 13, the water output of the valve can be adjusted by the guide plate 6 and the sliding rod 13, the flow rate can be accurately adjusted, and it is easy to use.

[0023] The right side of the guide plate 6 is provided with guide holes 61 , and the guide holes 61 are arranged in two rows with five guide holes in each row.

[0024] The inner wall of the valve flap 7 is fixedly connected to the sealing ring 8, and the sealing ring 8 is installed on the inner wall of the valve flap 7, which ensures that when the valve flap 7 is closed, water will not seep out from the gap between the valve flap 7 and the sliding rod 13, thereby ensuring the sealing of the stop valve, improving the safety of the stop valve, and facilitating use.

[0025] The top of the valve body 1 is fixedly connected to four bolts 14 , the tops of the four bolts 14 are fixedly connected to a fixing ring 15 , and the fixing ring 15 is slidably connected to a fixing rod 2 4 .

[0026] The top of the threaded rod 5 is fixedly connected to the fixed rod 2 4, and the outer wall of the top end of the fixed rod 2 4 is fixedly connected to the hand wheel 3. By turning the hand wheel 3, the hand wheel 3 drives the fixed rod 2 4 to rotate, and the fixed rod 2 4 drives the threaded rod 1 5 to rotate. Since the threaded rod 1 5 is threadedly connected to the fixed rod 1 2, the threaded rod 1 5 drives the valve disc 7 to move upward, so that the valve disc 7 no longer clamps the valve seat 9, allowing water to flow through the valve body 1.

[0027] The valve seat 9 is fixedly connected to the inner wall of the sealing seat 10, and the sealing seat 10 is fixedly connected to the inner wall of the valve body 1. The valve seat 9 and the sealing seat 10 ensure sealing so that water will not leak out.

[0028] The top of the sliding rod 13 is fixedly connected to the threaded rod 12, and the threaded rod 12 is threadedly connected to the fixed rod 4. The top of the threaded rod 12 is fixedly connected to the handle 11. The valve disc 7 is closed and the handle 11 is rotated to make the handle 11 drive the threaded rod 12 to rotate. Since the threaded rod 12 is threadedly connected to the fixed rod 4, the threaded rod 12 drives the sliding rod 13 to move upward, so that the sliding rod 13 no longer blocks the guide hole 61 of the guide plate 6, so that the water flows through the guide hole 61, and the water output of the guide plate 6 is controlled by the rising height of the sliding rod 13.

[0029] Working principle:

[0030] When in use, water flows in through the water inlet at the left end of the valve body 1. When the valve is closed, water cannot flow through the valve body 1. When the valve needs to be opened, the hand wheel 3 is turned to make the hand wheel 3 drive the fixed rod 2 4 to rotate, and the fixed rod 2 4 drives the threaded rod 1 5 to rotate. Since the threaded rod 1 5 is threadedly connected to the fixed rod 1 2, the threaded rod 1 5 drives the valve disc 7 to move upward, so that the valve disc 7 is no longer clamped with the valve seat 9, allowing water to flow through the valve body 1. When the water flow needs to be adjusted, the valve disc 7 is closed and the handle 11 is turned to make the handle 11 drive the threaded rod 2 12 to rotate. Since the threaded rod 2 12 is threadedly connected to the fixed rod 2 Rod 2 4 makes threaded rod 2 12 drive sliding rod 13 to move upward, so that sliding rod 13 no longer blocks the guide hole 61 of guide plate 6, allowing water to flow through guide hole 61, and the water output of guide plate 6 is controlled by the rising height of sliding rod 13. The water output of valve can be adjusted by guide plate 6 and sliding rod 13, so that the flow rate can be precisely adjusted, which is convenient for use. Sealing ring 8 is installed on the inner wall of valve flap 7, which ensures that water will not seep out from the gap between valve flap 7 and sliding rod 13 when valve flap 7 is closed, thereby ensuring the sealing of stop valve, improving the safety of stop valve and facilitating use.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable stop valve, comprising a valve body (1), a fixed rod (2), a threaded rod (5), a guide plate (6), a valve flap (7), a valve seat (9) and a sliding rod (13), characterized in that: The top of the valve body (1) is fixedly connected to a fixing rod (2), the fixing rod (2) is threadedly connected to a threaded rod (5), the bottom of the threaded rod (5) is fixedly connected to a guide plate (6), the bottom of the guide plate (6) is fixedly connected to a valve flap (7), the valve flap (7) is clamped to a valve seat (9), the valve seat (9) is installed in the valve body (1), and the threaded rod (5), the guide plate (6) and the valve flap (7) are slidably connected to a sliding rod (13).

2. An adjustable stop valve according to claim 1, characterized in that: The right side of the guide plate (6) is provided with guide holes (61), and the guide holes (61) are arranged in two rows, with five holes in each row.

3. The adjustable stop valve according to claim 1, characterized in that: The inner wall of the valve flap (7) is fixedly connected to a sealing ring (8).

4. The adjustable stop valve according to claim 1, characterized in that: The top of the valve body (1) is fixedly connected to four bolts (14), the tops of the four bolts (14) are fixedly connected to a fixing ring (15), and the fixing ring (15) is slidably connected to a fixing rod 2 (4).

5. The adjustable stop valve according to claim 1, characterized in that: The top of the threaded rod 1 (5) is fixedly connected to the fixed rod 2 (4), and the top outer wall of the fixed rod 2 (4) is fixedly connected to the hand wheel (3).

6. The adjustable stop valve according to claim 1, characterized in that: The valve seat (9) is fixedly connected to the inner wall of the sealing seat (10), and the sealing seat (10) is fixedly connected to the inner wall of the valve body (1).

7. The adjustable stop valve according to claim 1, characterized in that: The top of the sliding rod (13) is fixedly connected to the second threaded rod (12), the second threaded rod (12) is threadedly connected to the second fixed rod (4), and the top of the second threaded rod (12) is fixedly connected to the handle (11).

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