Stop valve with pressure regulation and control function

Abstract

The utility model discloses a stop valve with a pressure regulation and control function, belongs to the technical field of stop valves, and aims to solve the problems that in the prior art, when a valve is closed, water flow is blocked by a valve clack and cannot pass through the valve, so that the water flow applies large pressure to the valve clack of the valve, and the valve clack cannot pass through the valve. The problem that the working effect of the stop valve is reduced due to the fact that a valve clack of the stop valve is damaged after being impacted by pressure for a long time and cannot completely block water flow is solved, and the stop valve comprises a valve body, and the lower end of the valve body is in threaded connection with a vertical rod through a through hole, and external threads are machined on the outer portion of the vertical rod. Through the valve body, the vertical rod, the square plate, the first sealing gasket, the knob and the second sealing gasket, when the gap between the two valve seats is blocked by the valve clack, the vertical rod drives the baffle to move upwards, the baffle abuts against the valve seats through the first sealing gasket above, water flow is separated from the valve clack, at the moment, the pressure of the water flow on the valve clack is reduced, and the valve clack is prevented from being damaged; and the working effect of the stop valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of stop valve, more specifically, it is especially related to a stop valve with pressure regulation. BACKGROUND

[0002] The stop valve is a commonly used pipeline valve, mainly used for controlling the on-off and flow size of fluid. The stop valve has the advantages of simple structure, convenient manufacturing and maintenance, good sealing performance, etc. In the closed state, the sealing surface between the valve disc and the valve seat is tightly attached, which can effectively prevent fluid leakage and is suitable for occasions with high sealing requirements.

[0003] The current stop valve, when the valve is closed, the water flow is blocked by the valve disc and cannot pass through the valve, resulting in a large pressure exerted by the water flow on the valve disc of the valve. The valve disc of the stop valve is subjected to the impact of pressure for a long time, which can cause damage to the valve disc, thereby causing the valve disc to be unable to completely block the water flow, which reduces the working effect of the stop valve. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a stop valve with pressure regulation to solve the problem that in the prior art, when the valve is closed, the water flow is blocked by the valve disc and cannot pass through the valve, resulting in a large pressure exerted by the water flow on the valve disc of the valve. The valve disc of the stop valve is subjected to the impact of pressure for a long time, which can cause damage to the valve disc, thereby causing the valve disc to be unable to completely block the water flow, which reduces the working effect of the stop valve.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a stop valve with pressure regulation, comprising a valve body, the lower end of the valve body is connected with a vertical rod with external threads through a through hole, the lower end of the vertical rod is fixedly connected with a knob, the upper end of the vertical rod is fixedly connected with a baffle, the upper end of the baffle is provided with a first sealing gasket, the inner wall of the valve body is provided with a second sealing gasket, the middle part of the second sealing gasket is movably penetrated by the vertical rod, and the upper surface of the first sealing gasket is tightly abutted with two valve seats.

[0006] As a preferred technical scheme of the utility model, the two sides of the valve body are fixedly connected with two flanges respectively, the inner wall of one of the flanges is slidably connected with a sleeve, and the inside of the sleeve is provided with a filter screen.

[0007] As a preferred technical scheme of the utility model, the outer wall of the sleeve is connected with two fixed bolts through two through holes respectively, and the outer walls of the two fixed bolts are connected with flanges respectively.

[0008] As a preferred technical scheme of the utility model, the outer walls of the two fixed bolts are provided with grooves.

[0009] The upper end of the valve body is fixedly connected with a support, the upper end of the support is provided with a rotating disc, the lower end of the rotating disc is fixedly connected with a round rod, the outer thread processed in the middle of the round rod is connected with the valve body thread, the round rod penetrates the valve body, a third sealing gasket is arranged at the connecting position of the round rod and the valve body, and the lower end of the round rod is fixedly connected with a valve clack.

[0010] The material of the valve clack is sealing rubber material.

[0011] The utility model provides a stop valve with pressure regulation and control has the following beneficial effects:

[0012] 1, this new type through valve body, vertical rod, square board, first sealing gasket, knob and second sealing gasket, when the valve clack blocks the gap between two valve seats, water flow cannot pass through the valve seat, at this time, the water flow will cause greater impact force to the valve clack, the operator rotates the knob below, and the knob drives the vertical rod to rotate, and the vertical rod drives the baffle to move upwards, and the baffle is tightly closed to the valve seat through the first sealing gasket above, so that the water flow is separated from the valve clack, at this time, the water flow below the valve clack is reduced, so the impact pressure of the water flow on the valve clack is reduced, thereby the pressure of the water flow is regulated and controlled, the damage of the valve clack is avoided, and the working effect of the stop valve is improved.

[0013] 2, through the flange, sleeve, filter screen, fixed bolt and recess, the operator places the sleeve in the flange, rotates the fixed bolt through the recess on the fixed bolt, screws the fixed bolt into the sleeve, so that the sleeve is fixed on the flange, the impurities in the water flow are filtered through the filter screen in the sleeve, so that the impurities, dirt and particles in the water flow are prevented from impacting the valve clack, so that the wear of the valve clack is reduced, and the service life of the stop valve is prolonged. ACCURACY OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model structure;

[0015] Figure 2 It is Figure 1 the left view schematic view;

[0016] Figure 3 It is Figure 2 the left view schematic view;

[0017] Figure 4 It is Figure 3 the local enlarged schematic view of A in the middle.

[0018] In the figure: 1, valve body; 2, flange; 3, support; 4, rotary disc; 5, round rod; 6, valve clack; 7, valve seat; 8, vertical rod; 9, baffle; 10, first sealing gasket; 11, knob; 12, second sealing gasket; 13, sleeve; 14, filter screen; 15, fixing bolt; 16, groove; 17, third sealing gasket. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0020] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more than two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Please refer to Figures 1 to 4The utility model provides a kind of stop valve technical scheme with pressure regulation and control: including valve body 1, the lower end of valve body 1 is connected by threaded hole with the vertical rod 8 of external thread of outside processing, vertical rod 8 rotates on valve body 1, the lower end of vertical rod 8 is fixedly connected with knob 11, knob 11 facilitates operator rotating vertical rod 8, the upper end of vertical rod 8 is fixedly connected with baffle 9, vertical rod 8 drives baffle 9 to move, the upper end of baffle 9 is installed with first sealing pad 10, first sealing pad 10 can stop water flow, avoid impacting valve clack 6, the inner wall of valve body 1 is installed with second sealing pad 12, second sealing pad 12 can avoid liquid from the gap of vertical rod 8 and valve body 1 flow out, the middle part of second sealing pad 12 is penetrated by vertical rod 8, the upper surface of first sealing pad 10 is tightly abutted with two valve seats 7.When valve clack 6 blocks the gap between two valve seats 7, water flow cannot pass through valve seat 7, at this time, water flow will cause greater impact force to valve clack 6, operator rotates lower knob 11, knob 11 drives vertical rod 8 to rotate, vertical rod 8 drives baffle 9 to move upwards, baffle 9 is tightly abutted with valve seat 7 by first sealing pad 10 on the top, separates water flow from valve clack 6, at this time, reduce the pressure of water flow to valve clack 6, avoid valve clack 6 damage, so as to regulate and control the pressure exerted to valve clack 6 by water flow, improve the working effect of stop valve.

[0023] Wherein, the two sides of valve body 1 are fixedly connected with two flanges 2 respectively, flange 2 can facilitate valve body 1 and external water pipe connection, the inner wall of one flange 2 is slidably connected with sleeve 13, sleeve 13 can move into flange 2, filter screen 14 is installed in the inside of sleeve 13, filter screen 14 can intercept impurities, dirt and particles carried in water flow, avoid impacting valve clack 6.

[0024] Wherein, the outer wall of sleeve 13 is connected with two fixed bolts 15 respectively by two through holes, fixed bolt 15 fixes sleeve 13 in flange 2, the outer wall of two fixed bolts 15 is connected with flange 2 by threads.

[0025] Wherein, the outer wall of two fixed bolts 15 is processed with recess 16, recess 16 facilitates operator rotating fixed bolt 15.

[0026] Wherein, the upper end of valve body 1 is fixedly connected with support 3, the upper end of support 3 is equipped with rotating disc 4, the lower end of rotating disc 4 is fixedly connected with round rod 5, rotating disc 4 drives round rod 5 to rotate, the outer thread of middle part of round rod 5 is connected with valve body 1 by threads, round rod 5 rotates on valve body 1, round rod 5 penetrates valve body 1, third sealing pad 17 is installed at the connecting place of round rod 5 and valve body 1, third sealing pad 17 can avoid water flow from the gap of round rod 5 and valve body 1, the lower end of round rod 5 is fixedly connected with valve clack 6, round rod 5 drives valve clack 6 to move, the outer wall of valve clack 6 is tightly abutted with two valve seats 7.

[0027] Wherein, the material of valve clack 6 is sealed rubber material.

[0028] The specific use and role of the embodiment are as follows:

[0029] When the operator needs to open the stop valve, the disc 4 is rotated, and the disc 4 drives the round rod 5 to rotate. Since the round rod 5 is threadedly connected with the valve body 1, when the round rod 5 rotates, the round rod 5 simultaneously moves upward, and the round rod 5 drives the valve clack 6 below to move upward, so that the valve clack 6 is moved away from the valve seat 7. At this time, the water flow in the valve body 1 passes between the two valve seats 7, so that the water flow can pass through the valve body 1. When the stop valve needs to be closed, the operator reversely rotates the disc 4, and the disc 4 drives the valve clack 6 to abut against the valve seat 7 through the above transmission mode, so as to block the water flow. When the valve clack 6 blocks the valve seat 7, the operator rotates the knob 11, and the knob 11 drives the vertical rod 8 to rotate. Since the vertical rod 8 is threadedly connected with the valve body 1, when the vertical rod 8 rotates, the vertical rod 8 simultaneously drives the baffle 9 to move upward. When the first sealing gasket 10 on the upper surface of the baffle 9 abuts against the valve seat 7, the operator stops rotating the knob 11. At this time, the baffle 9 can block the water flow below, so that the liquid below the valve clack 6 is reduced, thereby reducing the pressure of the water flow on the valve clack 6, and the adjustment of the internal pressure of the stop valve is completed, thereby improving the working effect of the stop valve. When the surface of the filter screen 14 is accumulated with too much impurity and needs to be cleaned, the operator rotates the fixing bolt 15 through the groove 16, then takes the fixing bolt 15 off from the sleeve 13, then takes the sleeve 13 off, cleans the filter screen 14 in the sleeve 13, then puts the sleeve 13 into the flange 2, and fixes the sleeve 13 in the flange 2 through the fixing bolt 15, so that the cleaning work of the filter screen 14 is completed, and the filter screen 14 can avoid the impurity, dirt and particles in the water flow from impacting the valve clack 6, thereby prolonging the service life of the stop valve.

[0030] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A shut-off valve with pressure regulation, characterized in that: The valve body (1) is included. The lower end of the valve body (1) is threadedly connected to a vertical rod (8) with external threads through a through hole. The lower end of the vertical rod (8) is fixedly connected to a knob (11). The upper end of the vertical rod (8) is fixedly connected to a baffle (9). A first sealing gasket (10) is installed on the upper end of the baffle (9). A second sealing gasket (12) is installed on the inner wall of the valve body (1). The middle part of the second sealing gasket (12) is movably penetrated by the vertical rod (8). The upper surface of the first sealing gasket (10) abuts against two valve seats (7).

2. The shut-off valve with pressure regulation according to claim 1, characterized in that: The valve body (1) is fixedly connected to two flanges (2) on both sides respectively. The inner wall of one flange (2) is slidably connected to a sleeve (13). A filter screen (14) is installed inside the sleeve (13).

3. A pressure-regulating shut-off valve according to claim 2, characterized in that: The outer wall of the sleeve (13) is threadedly connected to two fixing bolts (15) through two through holes, and the outer walls of the two fixing bolts (15) are threadedly connected to the flange (2).

4. A pressure-regulating shut-off valve according to claim 3, characterized in that: The outer walls of both fixing bolts (15) are machined with grooves (16).

5. A pressure-regulating shut-off valve according to claim 1, characterized in that: The upper end of the valve body (1) is fixedly connected to the bracket (3). The upper end of the bracket (3) is provided with a turntable (4). The lower end of the turntable (4) is fixedly connected to a round rod (5). The external thread machined in the middle of the round rod (5) is threadedly connected to the valve body (1). The round rod (5) passes through the valve body (1). A third sealing gasket (17) is installed at the connection between the round rod (5) and the valve body (1). The lower end of the round rod (5) is fixedly connected to the valve disc (6). The outer wall of the valve disc (6) abuts against the two valve seats (7).

6. A pressure-regulating shut-off valve according to claim 5, characterized in that: The valve disc (6) is made of sealing rubber.

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