Ultrahigh-pressure leakage-proof stop valve

Abstract

The utility model provides an ultrahigh-pressure leakage-proof stop valve, which belongs to the field of stop valves and comprises a valve body, a valve rod is arranged on the valve body, and two ends of the valve body are connected with connecting pipes; the protection assembly comprises a shell, a sleeve, a lifting plate and two guide rods, the valve body is fixedly arranged at the inner bottom of the shell, the sleeve penetrates through the top of the shell to be arranged in a sliding mode, a positioning assembly is arranged between the sleeve and the shell, a fixing plate is fixedly arranged at the top of the valve rod, the fixing plate is arranged in the sleeve in a sliding mode, and the two guide rods are arranged in the fixing plate. The lifting plate is fixedly arranged on the inner wall of the sleeve, and the valve rod penetrates through the lifting plate and is arranged in a sliding mode. The protection assembly is arranged, the valve body can be protected, the valve body is prevented from being eroded by rainwater, the service life is prolonged, the positioning assembly is further arranged, the valve rod can be positioned, the situation that the valve body is opened and closed due to mistaken touch and collision is avoided, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to an ultra-high pressure leak-proof stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is the most widely used valve. The reason why it is so popular is that the friction between the sealing surfaces during opening and closing is small, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is suitable not only for medium and low pressures, but also for high pressures.

[0003] The stop valves in the prior art are mostly installed outdoors and lack protective devices. The stop valves are eroded by rain for a long time and are prone to rust, which makes the valve unable to open and reduces its service life. In addition, the valve body is often opened and closed due to accidental touch or collision of the handle, which reduces safety. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an ultra-high pressure leak-proof stop valve.

[0005] The embodiment of the utility model provides an ultra-high pressure leak-proof stop valve, comprising:

[0006] A valve body, wherein a valve stem is provided on the valve body, and both ends of the valve body are connected to connecting pipes;

[0007] A protective component, the protective component includes a shell, a sleeve, a lifting plate and two guide rods, the valve body is fixedly arranged on the inner bottom of the shell, the sleeve is slidably arranged through the top of the shell, a positioning component is arranged between the sleeve and the shell, a fixing plate is fixedly arranged on the top of the valve stem, the fixing plate is slidably arranged in the sleeve, the lifting plate is fixedly arranged on the inner wall of the sleeve, the valve stem is slidably arranged through the lifting plate, the two guide rods are fixedly arranged in parallel on the lifting plate, the tops of the two guide rods are respectively fixedly arranged on the inner top of the sleeve, and the two guide rods are both slidably arranged through the fixing plate.

[0008] Furthermore, the positioning assembly includes a spring, a first annular plate and a second annular plate, the spring is fixedly set on the lifting plate, the other end of the spring is fixedly set on the bottom of the fixed plate, the valve stem passes through the spring and is movably set, the first annular plate is fixedly set on the outside of the sleeve, the second annular plate is fixedly set on the shell, and a plurality of clips are fixedly set on the bottom of the first annular plate and the top of the second annular plate.

[0009] Furthermore, a plurality of the card strips are arranged in an alternating manner, and a plurality of the card strips are meshed and connected.

[0010] Furthermore, a sealing gasket is fixedly arranged at the bottom of the first annular plate, and the sealing gasket is arranged to abut against the shell.

[0011] Furthermore, a limiting ring is fixedly provided on the outer side of the bottom end of the sleeve, and a turning handle is fixedly provided on the top of the sleeve.

[0012] Furthermore, mounting ports are provided at both ends of the valve body, and the two mounting ports are respectively passed through the two sides of the shell and fixedly provided, and the two connecting pipes are both connected to the valve body through the mounting ports on the same side.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. A shell and a sleeve are provided. The shell can protect the valve body and prevent the valve body from being eroded by rainwater. The sleeve can drive the fixed plate to rotate through two guide rods, and the fixed plate can drive the valve stem to rotate, thereby controlling the opening and closing of the valve body.

[0015] 2. A first annular plate and a second annular plate are provided, and the sleeve can be positioned by means of a number of staggered meshing strips. The sleeve is pulled upward by turning the handle to move the first annular plate away from the second annular plate, and the several strips are separated. Then, the sleeve can be rotated to control the opening and closing of the valve body. This facilitates use and can avoid the opening and closing of the valve body due to accidental touch and impact, thereby improving safety.

[0016] To sum up, the utility model is provided with a protective component, which can protect the valve body, prevent the valve body from being eroded by rainwater, and delay the service life. A positioning component is also provided to position the valve stem, avoiding the opening and closing of the valve body due to accidental touch and impact, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of the ultra-high pressure leak-proof stop valve described in the embodiment of the utility model.

[0018] Figure 2 It is a partial cross-sectional view of the ultra-high pressure leak-proof stop valve described in an embodiment of the utility model.

[0019] Figure 3 It is a stereoscopic diagram of the positioning assembly in the ultra-high pressure leak-proof stop valve described in the embodiment of the utility model.

[0020] In the above drawings: 1 valve body, 2 mounting port, 3 connecting pipe, 4 valve stem, 5 shell, 6 sleeve, 7 handle, 8 fixing plate, 9 lifting plate, 10 guide rod, 11 spring, 12 limit ring, 13 first annular plate, 14 second annular plate, 15 clamping strip, 16 sealing gasket. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides an ultra-high pressure leak-proof stop valve, comprising:

[0023] A valve body 1 is provided with a valve stem 4, the valve body 1 and the valve stem 4 are both prior art, the valve body 1 can be opened and closed by rotating the valve stem 4, both ends of the valve body 1 are connected with connecting pipes 3, both ends of the valve body 1 are provided with mounting ports 2, the two connecting pipes 3 are connected with the valve body 1 through the mounting ports 2 on the same side, and the connecting pipes 3 can be fixed with the mounting ports 2 by means of threaded connection or flange connection;

[0024] The protection component includes a housing 5, a sleeve 6, a lifting plate 9 and two guide rods 10. The valve body 1 is fixedly arranged at the inner bottom of the housing 5. The two mounting ports 2 are respectively fixedly arranged on both sides of the housing 5. The sleeve 6 is slidably arranged at the top of the housing 5. A turning handle 7 is fixedly arranged on the top of the sleeve 6. The turning handle 7 is convenient for the staff to rotate the sleeve 6. A limiting ring 12 is fixedly arranged on the outer side of the bottom end of the sleeve 6. The limiting ring 12 plays a role of limiting the sleeve 6.

[0025] A fixing plate 8 is fixedly arranged on the top of the valve stem 4, and the fixing plate 8 is slidably arranged in the sleeve 6. The lifting plate 9 is fixedly arranged on the inner wall of the sleeve 6. The valve stem 4 penetrates the lifting plate 9 and is slidably arranged. Two guide rods 10 are fixedly arranged on the lifting plate 9 in parallel. The tops of the two guide rods 10 are respectively fixedly arranged on the inner top of the sleeve 6. The two guide rods 10 are both slidably arranged through the fixing plate 8. The two guide rods 10 play a guiding and supporting role for the sleeve 6, so that the sleeve 6 can rotate the fixing plate 8 through the two guide rods 10, thereby rotating the valve stem 4;

[0026] A positioning assembly is provided between the sleeve 6 and the housing 5, and the positioning assembly includes a spring 11, a first annular plate 13, and a second annular plate 14. The spring 11 is fixedly provided on the lifting plate 9, and the other end of the spring 11 is fixedly provided at the bottom of the fixed plate 8. The valve stem 4 is movably provided through the spring 11, and the first annular plate 13 is fixedly provided at the outside of the sleeve 6. A sealing gasket 16 is fixedly provided at the bottom of the first annular plate 13, and the sealing gasket 16 is provided against the housing 5. The sealing gasket 16 can seal the gap between the sleeve 6 and the housing 5 to prevent rainwater from seeping in.

[0027] The second annular plate 14 is fixedly arranged on the shell body 5, and a plurality of clamping strips 15 are fixedly arranged on the bottom of the first annular plate 13 and the top of the second annular plate 14. The plurality of clamping strips 15 are staggered and meshedly connected, so that when the plurality of clamping strips 15 at the bottom of the first annular plate 13 are inserted between the plurality of clamping strips 15 at the top of the second annular plate 14, the second annular plate 14 can clamp the first annular plate 13, thereby clamping the sleeve 6, positioning the sleeve 6, and preventing the sleeve 6 from rotating. The provision of a plurality of clamping strips 15 can also fix the valve stem 4 at a variety of rotation angles, thereby controlling the flow of the valve body 1.

[0028] The detailed working process of the utility model is as follows:

[0029] 1. When opening or closing the valve body 1, the staff first lifts the sleeve 6 by turning the handle 7. The sleeve 6 drives the lifting plate 9 to move upward through the two guide rods 10, squeezing the spring 11. At the same time, the sleeve 6 drives the first annular plate 13 to move upward, driving the corresponding plurality of clips 15 to move upward and separate from the plurality of clips 15 on the second annular plate 14. Then, the sleeve 6 is rotated by turning the handle 7. The sleeve 6 drives the fixed plate 8 to rotate through the two guide rods 10, and the fixed plate 8 drives the valve stem 4 to rotate, so that the valve body 1 can be controlled to be opened and closed;

[0030] 2. After use, release the turning handle 7, and the sleeve 6 moves downward to reset under the action of the spring 11. The sleeve 6 drives the first annular plate 13 to move downward, so that the corresponding plurality of clips 15 are inserted between the plurality of clips 15 on the second annular plate 14, thereby positioning the sleeve 6.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Ultra-high pressure leak-proof stop valve, characterized in that: include: A valve body (1), wherein a valve stem (4) is provided on the valve body (1), and both ends of the valve body (1) are connected to connecting pipes (3); A protection component, the protection component comprises a shell (5), a sleeve (6), a lifting plate (9) and two guide rods (10), the valve body (1) is fixedly arranged on the inner bottom of the shell (5), the sleeve (6) penetrates the top of the shell (5) and is slidably arranged, a positioning component is arranged between the sleeve (6) and the shell (5), a fixing plate (8) is fixedly arranged on the top of the valve stem (4), the fixing plate (8) is slidably arranged in the sleeve (6), the lifting plate (9) is fixedly arranged on the inner wall of the sleeve (6), the valve stem (4) penetrates the lifting plate (9) and is slidably arranged, the two guide rods (10) are fixedly arranged on the lifting plate (9) in parallel, the tops of the two guide rods (10) are respectively fixedly arranged on the inner top of the sleeve (6), and the two guide rods (10) are both slidably arranged through the fixing plate (8).

2. The ultra-high pressure leak-proof stop valve according to claim 1, characterized in that: in: The positioning assembly comprises a spring (11), a first annular plate (13) and a second annular plate (14); the spring (11) is fixedly arranged on the lifting plate (9); the other end of the spring (11) is fixedly arranged on the bottom of the fixed plate (8); the valve stem (4) penetrates the spring (11) and is movably arranged; the first annular plate (13) is fixedly arranged on the outside of the sleeve (6); the second annular plate (14) is fixedly arranged on the shell (5); and a plurality of clips (15) are fixedly arranged on the bottom of the first annular plate (13) and the top of the second annular plate (14).

3. The ultra-high pressure leak-proof stop valve according to claim 2, characterized in that: in: A plurality of the clamping strips (15) are arranged in a staggered manner, and a plurality of the clamping strips (15) are meshed and connected.

4. The ultra-high pressure leak-proof stop valve according to claim 2, characterized in that: in: A sealing gasket (16) is fixedly arranged at the bottom of the first annular plate (13), and the sealing gasket (16) is arranged to abut against the housing (5).

5. The ultra-high pressure leak-proof stop valve according to claim 1, characterized in that: in: A limiting ring (12) is fixedly arranged on the outer side of the bottom end of the sleeve (6), and a turning handle (7) is fixedly arranged on the top of the sleeve (6).

6. The ultra-high pressure leak-proof stop valve according to claim 1, characterized in that: in: The valve body (1) is provided with mounting openings (2) at both ends, and the two mounting openings (2) respectively penetrate through the two sides of the shell (5) and are fixedly arranged, and the two connecting pipes (3) are both connected to the valve body (1) through the mounting openings (2) on the same side.

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