High-flow low-pressure starting valve

Abstract

The utility model relates to the technical field of starting valves, and discloses a high-flow low-pressure starting valve which comprises a valve body, an air inlet pipe is fixedly connected to the top end of the valve body, and an adjusting mechanism and an anti-misoperation mechanism are arranged on the valve body. The adjusting mechanism comprises a fixing disc fixedly connected to the inner wall of the valve body, a telescopic column penetrates through the fixing disc in a sliding mode, one end of the telescopic column is fixedly connected with a conical column, the other end of the telescopic column is rotationally connected with a threaded rod and penetrates through the valve body in a threaded mode, and the other end of the threaded rod is fixedly connected with an adjusting block. A fixing ring is rotationally connected to the outer wall of the adjusting block, a stand column is fixedly connected to the top end of the fixing ring, and a circular column is fixedly connected to the end, close to the valve body, of the stand column; through all structures in the adjusting mechanism, the effect of adjusting the flow of the air outlet is achieved, and the problem that a traditional starting valve cannot adjust and control the flow of the air outlet in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of starting valves, in particular to a large-flow low-pressure starting valve. Background Art

[0002] The high-flow, low-pressure starting valve is a valve designed to achieve high-flow fluid control under lower pressure conditions. It can respond quickly when the system starts and maintain efficient fluid transmission capabilities under lower working pressure.

[0003] The Chinese patent provides a cylinder start valve with the publication number CN213839119U, which includes a cylindrical valve body, a stepped boss provided in the middle of the valve body, a spring sheet and a gasket provided in sequence on the stepped boss, one end of the valve body is fixedly connected to a valve stem seat, and the other end is provided with a piston movable in the valve body, a valve stem is provided inside the valve body, and passes through the valve stem seat and the piston in sequence, the end of the valve stem is fixedly connected to the piston by a self-locking nut, the valve stem can slide relative to the valve stem seat, and the end of the valve stem connected to the valve stem seat is a conical surface that fits and seals with the conical surface of the valve stem seat.

[0004] The above device has a simple structure and stable operation. It can open and close the cylinder in time to improve the working stability of the cylinder. However, it is impossible to adjust and control the flow rate of the air outlet during use, and it is impossible to know the adjustment amount. It cannot be applied to different states, resulting in poor practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a large-flow low-pressure starting valve to solve the problem that the existing device cannot adjust and control the flow rate of the air outlet during use, and it is also impossible to know the adjustment amount, and it cannot be applied to different states, resulting in poor practicality.

[0006] To achieve the above object, the present invention provides the following technical solutions: a high-flow, low-pressure starting valve, comprising a valve body, the top end of which is fixedly connected to an air intake pipe, and the valve body is provided with an adjustment mechanism and an anti-misoperation mechanism;

[0007] The adjusting mechanism includes a fixed plate fixedly connected to the inner wall of the valve body, a telescopic column slidingly penetrates the fixed plate, one end of the telescopic column is fixedly connected to a conical column, the other end of the telescopic column is rotatably connected to a threaded rod and threadedly penetrates the valve body, the other end of the threaded rod is fixedly connected to an adjusting block, the outer wall of the adjusting block is rotatably connected to a fixing ring, the top of the fixing ring is fixedly connected to a column, the end of the column close to the valve body is fixedly connected to a circular column, the outer wall of the circular column is provided with scale lines, and a circular groove is provided on the valve body at the position corresponding to the circular column.

[0008] Preferably, the anti-misoperation mechanism includes a fixing cylinder fixedly connected to the outer side of the threaded rod corresponding to the valve body, and a square hole is formed on the top of the fixing cylinder and contacts the column.

[0009] Preferably, the inner wall of the fixing cylinder is symmetrically provided with slots.

[0010] Preferably, the anti-misoperation mechanism includes a cover plate, and the cover plate has symmetrical sliding grooves at one end close to the fixed cylinder. The inner walls of the two sliding grooves are slidably connected with slides, and the two slides are fixedly connected with a card column adapted to the shape of the card groove at one end away from each other.

[0011] Preferably, the two slides are fixedly connected to one end thereof close to each other with a spring, and the two groups of springs are fixedly connected to one end of the slide groove.

[0012] Preferably, circular holes are formed at both ends of the cover plate and extend into the interior of the slide groove, and the diameter of the fixing cylinder is equal to the diameter of the cover plate.

[0013] Preferably, a sealing gasket is fixedly connected to the air outlet of the valve body, and the sealing gasket is in contact with the conical column.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1) The large-flow low-pressure starting valve can adjust the flow of the air outlet through the mutual cooperation of various structures in the adjustment mechanism, and the adjustment amount can be known, so that it can be applied to different states and improve practicality.

[0016] 2) The large-flow low-pressure starting valve can be closed after the flow rate is adjusted through the mutual cooperation of various structures in the anti-misoperation mechanism, thereby preventing it from being operated by non-staff and thus avoiding affecting the flow rate of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a large flow and low pressure starting valve of the utility model;

[0018] Figure 2 This is a cross-sectional view of the valve body of a large flow and low pressure starting valve of the utility model;

[0019] Figure 3 This is a diagram showing the anti-misoperation mechanism of a large-flow, low-pressure starting valve of the utility model;

[0020] Figure 4 This is a partial display diagram of the anti-misoperation mechanism of a large-flow, low-pressure starting valve of the utility model.

[0021] In the figure: 1. Valve body; 2. Air inlet pipe; 3. Adjustment mechanism; 301. Fixed plate; 302. Telescopic column; 303. Conical column; 304. Threaded rod; 305. Adjustment block; 306. Fixed ring; 307. Vertical column; 308. Circular column; 309. Scale line; 310. Circular groove; 4. Anti-misoperation mechanism; 401. Fixed cylinder; 402. Square hole; 403. Card slot; 404. Cover plate; 405. Slide groove; 406. Slide plate; 407. Card column; 408. Spring; 409. Circular hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] Combine Figures 1-4 A large flow and low pressure starting valve comprises a valve body 1, the top of the valve body 1 is fixedly connected to an air inlet pipe 2, and the valve body 1 is provided with an adjusting mechanism 3 and an anti-misoperation mechanism 4.

[0025] See Figure 2 , it is further obtained that the adjustment mechanism 3 includes a fixed disk 301 fixedly connected to the inner wall of the valve body 1, a telescopic column 302 is slidably penetrated on the fixed disk 301, one end of the telescopic column 302 is fixedly connected to a conical column 303, the other end of the telescopic column 302 is rotatably connected to a threaded rod 304 and threadedly penetrates the valve body 1, the other end of the threaded rod 304 is fixedly connected to an adjustment block 305, the outer wall of the adjustment block 305 is rotatably connected to a fixing ring 306, the top of the fixing ring 306 is fixedly connected to a column 307, the end of the column 307 close to the valve body 1 is fixedly connected to a circular column 308, the outer wall of the circular column 308 is provided with a scale line 309, the valve body 1 is provided with a circular groove 310 at the position of the circular column 308, and a sealing gasket is fixedly connected to the air outlet of the valve body 1, and the sealing gasket is in contact with the conical column 303.

[0026] Specifically, the telescopic column 302 can be moved through the threaded effect of the threaded rod 304, so that the tapered column 303 and the sealing gasket can be separated, thereby opening the air outlet. During the opening process, the scale line 309 can be observed to know the distance of movement, and then the size of the opening can be controlled. When the opening amount is the largest, the flow rate passing through is the largest, and the operation can be completed in a low-pressure state when passing through.

[0027] Example 2

[0028] See Figure 3 and Figure 4 , and on the basis of Example 1, it is further obtained that the anti-misoperation mechanism 4 includes a fixed cylinder 401 fixedly connected to the outer side of the corresponding threaded rod 304 of the valve body 1, the top of the fixed cylinder 401 is penetrated by a square hole 402 and contacts the column 307, the inner wall of the fixed cylinder 401 is symmetrically provided with a card groove 403, the anti-misoperation mechanism 4 includes a cover plate 404, the cover plate 404 is symmetrically provided with a slide groove 405 at one end close to the fixed cylinder 401, the inner walls of the two slide grooves 405 are slidably connected with a slide plate 406, the two slide plates 406 are fixedly connected to a card column 407 with a shape adapted to the card groove 403 at one end away from each other, the two slide plates 406 are fixedly connected to a spring 408 at one end close to each other, and the two sets of springs 408 are fixedly connected to one end of the slide groove 405, and circular holes 409 are penetrated at both ends of the cover plate 404 and extend into the interior of the slide groove 405, and the diameter of the fixed cylinder 401 is equal to that of the cover plate 404.

[0029] Specifically, the circular column is inserted into the circular hole 409, and the slide plate 406 is pushed to make the clamping column 407 leave the range of the clamping slot 403, thereby releasing the limit on the cover plate 404 and removing it, making it convenient to adjust the outlet volume. After the adjustment is completed, the cover plate 404 is brought into contact with the fixed cylinder 401, and the clamping column 407 is clamped into the clamping slot 403, completing the limit operation of the cover plate 404, preventing it from being operated incorrectly by non-staff and avoiding affecting the flow rate of the air outlet.

[0030] In actual operation, the circular column is first inserted into the circular hole 409, and the slide plate 406 is pushed to make the clamping column 407 leave the range of the clamping slot 403 and contact the limit of the cover plate 404. Then, the adjustment block 305 is exposed, and the hexagonal column is inserted into the hexagonal slot on the adjustment block 305, so that the adjustment block 305 and the threaded rod 304 can be rotated. The thread effect of the threaded rod 304 can make the threaded rod 304 move when rotating, and move the telescopic column 302 and the tapered column 303, so that the opening size of the outlet can be adjusted. When the outlet opening is the largest, the flow rate is also the largest, and it can flow under a low pressure state.

[0031] After adjustment, the cover plate 404 is brought into contact with the fixed cylinder 401, and the elastic action of the spring 408 can make the clamping column 407 clamped in the clamping groove 403, completing the limitation of the cover plate 404, thereby preventing it from being operated by non-staff and preventing the flow of the air outlet from being affected.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-flow, low-pressure starting valve, comprising a valve body (1), wherein the top end of the valve body (1) is fixedly connected to an air inlet pipe (2), and characterized in that: The valve body (1) is provided with an adjusting mechanism (3) and an anti-misoperation mechanism (4); The regulating mechanism (3) comprises a fixed disk (301) fixedly connected to the inner wall of the valve body (1); a telescopic column (302) is slidably passed through the fixed disk (301); one end of the telescopic column (302) is fixedly connected to a conical column (303); the other end of the telescopic column (302) is rotatably connected to a threaded rod (304) and threadedly passes through the valve body (1); the other end of the threaded rod (304) is fixedly connected to an regulating block (305); the outer wall of the regulating block (305) is rotatably connected to a fixing ring (306); the top of the fixing ring (306) is fixedly connected to a column (307); the end of the column (307) close to the valve body (1) is fixedly connected to a circular column (308); the outer wall of the circular column (308) is provided with a scale line (309); and the valve body (1) is provided with a circular groove (310) at a position corresponding to the circular column (308).

2. A high flow, low pressure starting valve according to claim 1, characterized in that: The anti-misoperation mechanism (4) comprises a fixed cylinder (401) fixedly connected to the outside of the corresponding threaded rod (304) of the valve body (1); a square hole (402) is formed on the top of the fixed cylinder (401) and contacts the column (307).

3. A high flow, low pressure starting valve according to claim 2, characterized in that: The inner wall of the fixing cylinder (401) is symmetrically provided with clamping grooves (403).

4. A high flow, low pressure starting valve according to claim 3, characterized in that: The anti-misoperation mechanism (4) comprises a cover plate (404), wherein one end of the cover plate (404) close to the fixed cylinder (401) is symmetrically provided with a sliding groove (405), the inner walls of the two sliding grooves (405) are both slidably connected with a slide plate (406), and the ends of the two slide plates (406) away from each other are both fixedly connected with a clamping column (407) that is adapted to the shape of the clamping groove (403).

5. A high flow, low pressure starting valve according to claim 4, characterized in that: The two slides (406) are fixedly connected to one end thereof close to each other with a spring (408), and the two groups of springs (408) are fixedly connected to one end of the slide groove (405).

6. A high flow, low pressure starting valve according to claim 5, characterized in that: Circular holes (409) are provided at both ends of the cover plate (404) and extend into the interior of the slide groove (405). The diameter of the fixing cylinder (401) is equal to the diameter of the cover plate (404).

7. A high flow, low pressure starting valve according to claim 1, characterized in that: A sealing gasket is fixedly connected to the air outlet of the valve body (1), and the sealing gasket is in contact with the tapered column (303).

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