Stop valve

Abstract

The utility model discloses a stop valve, which relates to the field of fluid transportation and comprises a valve body, and a valve pad is fixedly mounted at the top end of the valve body. The top end of the valve pad is provided with an inner support groove, and the top end of the inner support groove is fixedly provided with a locking pipe. A control wheel shell is rotationally arranged at the top end of the valve pad; a wheel core is fixedly mounted at the top end of the control wheel shell; a valve rod is fixedly connected to the bottom end of the wheel core; a male connector and a female connector are installed on the left side and the right side of the valve body respectively, a side support is fixedly connected to the top end of the valve body, and installation faces are arranged on the left side and the right side of the valve body. When the valve is used, the connectors at the two ends are DN32G, the left side and the right side of the valve are connected with the valve body to form a line, the valve element is installed perpendicular to the connectors, liquid flows into the valve element from bottom to top, the hand wheel is arranged above the valve element, use is convenient, meanwhile, the valve element can be integrally disassembled and assembled and is fixed to the valve body through the guide sleeve of the valve element, and maintenance and use are convenient. And the valve pad directly playing a role in sealing can be replaced independently, and can be replaced independently when being used for a long time.

Description

Technical Field

[0001] The utility model relates to the field of transportation, in particular to a stop valve. Background Art

[0002] Nowadays, high pressure and large flow in hydraulic pipelines are becoming more and more common. Increasing the flow and raising the pressure also brings the problem of difficulty in opening.

[0003] The prior art discloses a stop valve with application number CN202320419218.5, in which the stop baffle can be limited by two sets of moving blocks to prevent the stop baffle from being displaced during the movement. When the stop baffle moves up, it supports the lower end of the upper connecting plate. The stop baffle blocks the lower end of the upper connecting plate and cuts off the gas supply. The stop baffle is driven by an electric hydraulic cylinder to perform the cut-off work, which can quickly cut off the gas supply while avoiding the backflow after the gas is stopped.

[0004] However, the existing technology still has some defects, such as the larger the flow rate, the larger the through hole and the seal of the valve body, the greater the force on the seal, and the greater the friction to be overcome to open the valve, but the handle cannot be extended indefinitely, including spherical stop valves and gate valves. Therefore, many occasions require a stop valve that can meet large flow and can be easily opened. Utility Model Content

[0005] In order to solve the deficiencies mentioned in the above background technology, the purpose of the utility model is to provide a stop valve.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A stop valve comprises a valve body, a valve pad being fixedly mounted on the top end of the valve body;

[0008] An inner bracket groove is provided at the top of the valve pad, and a locking tube is fixedly installed at the top of the inner bracket groove;

[0009] A control wheel housing is rotatably disposed on the top of the valve pad;

[0010] A wheel core is fixedly installed on the top of the control wheel housing, and a valve stem is fixedly connected to the bottom of the wheel core;

[0011] A male connector and a female connector are respectively installed on the left and right sides of the valve body.

[0012] Furthermore, a side bracket is fixedly connected to the top of the valve body, and mounting surfaces are arranged on the left and right sides of the valve body, and a water inlet groove and a water outlet groove are respectively arranged on the inner sides of the mounting surfaces at both ends.

[0013] Furthermore, a valve core is installed inside the locking tube, a fixed gasket is slidably connected inside the valve core, and an auxiliary fixed frame is fixedly connected to the bottom end of the inner bracket groove.

[0014] Furthermore, the bottom end of the valve stem is fixedly connected to a valve frame, and the bottom end of the valve frame is slidably connected to a lifting groove.

[0015] Furthermore, an auxiliary fixing port is fixedly connected to the outer side of the male connector, a connecting pipe is provided on the inner side of the male connector, and a receiving groove is provided at the rear end of the connecting pipe.

[0016] Furthermore, a valve connecting pipe is provided on the inner side of the female connector, a valve mother interface is provided on the inner side of the valve connecting pipe, and a valve liquid outlet interface is provided on the rear side of the valve mother interface.

[0017] Beneficial effects of the utility model:

[0018] 1. The interfaces at both ends of the utility model are DN32G, and the left and right sides are connected to the valve body in a straight line. The valve core is installed vertically to the interface, and the internal liquid flows from bottom to top. The hand wheel is on the top, which is convenient for use. At the same time, the valve core can be disassembled and assembled as a whole, and is fixed to the valve body by its own guide sleeve, which is convenient for maintenance and use. The valve pad that directly seals can also be replaced separately, and can be replaced independently when it has been used for too long;

[0019] 2. When the utility model is in use, there are through holes inside the valve stem, valve pad and fixing screw, which lead to a cavity formed by the valve stem, screw plug and guide sleeve. There are sealing rings between the valve stem and the screw plug, between the valve stem and the guide sleeve, and between the screw plug and the guide sleeve to ensure the airtightness of the cavity. When liquid enters, the liquid is introduced into the cavity through the through hole to balance the upper and lower liquid pressures of the valve core, which can form a downward pressure to balance the upward force, making the force to open the valve body lighter and increasing the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the valve body of the utility model;

[0023] Figure 3 It is a schematic diagram of the valve pad of the utility model;

[0024] Figure 4 It is a schematic diagram of the control wheel housing of the utility model;

[0025] Figure 5 It is a schematic diagram of the female connector of the utility model.

[0026] In the figure: 1. valve body; 11. side bracket; 12. mounting surface; 13. water inlet; 14. water outlet; 2. valve pad; 21. inner bracket groove; 22. locking tube; 23. valve core; 24. fixing gasket; 25. auxiliary fixing frame; 3. control wheel housing; 31. wheel core; 32. valve stem; 33. valve frame; 34. lifting groove; 4. male connector; 41. auxiliary fixing port; 42. connecting pipe; 43. accommodating groove; 5. female connector; 51. valve connecting pipe; 52. valve female interface; 53. valve outlet interface. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] A stop valve, such as Figure 1 As shown, it includes a valve body 1, a valve pad 2 is fixedly installed on the top of the valve body 1, a control wheel housing 3 is rotatably installed on the top of the valve pad 2, and a male connector 4 and a female connector 5 are respectively installed on the left and right sides of the valve body 1.

[0030] like Figure 2 As shown, a side bracket 11 is fixedly connected to the top of the valve body 1, and mounting surfaces 12 are arranged on the left and right sides of the valve body 1. A water inlet groove 13 and a water outlet groove 14 are respectively opened inside the mounting surfaces 12 at both ends.

[0031] Water enters through the water inlet groove 13 , and the height of the control wheel housing 3 is controlled by rotating the control wheel housing 3 against the top, so that the control wheel housing 3 moves along the center line to control the water and let the water flow out from the water outlet groove 14 .

[0032] like Figure 3 As shown, an inner bracket groove 21 is opened at the top of the valve pad 2, a locking tube 22 is fixedly installed at the top of the inner bracket groove 21, a valve core 23 is installed on the inner side of the locking tube 22, a fixed gasket 24 is slidably connected to the inner side of the valve core 23, and an auxiliary fixed frame 25 is fixedly connected to the bottom end of the inner bracket groove 21.

[0033] The lifting and lowering of the control wheel housing 3 is controlled by the auxiliary fixed frame 25 at the bottom end of the valve pad 2, so that the internal control wheel housing 3 can be controlled, and the fixed gasket 24 is used to control the height position of the control wheel housing 3.

[0034] like Figure 4 As shown, a wheel core 31 is fixedly installed on the top of the control wheel housing 3, a valve stem 32 is fixedly connected to the bottom of the wheel core 31, a valve frame 33 is fixedly connected to the bottom of the valve stem 32, and a lifting groove 34 is slidably connected to the bottom of the valve frame 33.

[0035] The operator controls the control wheel housing 3 so that the control wheel housing 3 rotates to drive the wheel core 31, and the wheel core 31 rotates to drive the valve stem 32 to move, so that the valve frame 33 and the lifting groove 34 can be lifted and lowered inside, so that the stop valve is opened or closed.

[0036] like Figure 3 As shown, an auxiliary fixing port 41 is fixedly connected to the outer side of the male connector 4 , a connecting pipe 42 is provided on the inner side of the male connector 4 , and a receiving groove 43 is provided on the rear end of the connecting pipe 42 .

[0037] The male connector 4 is fixed through the auxiliary fixing port 41 on the outside of the male connector 4, so that the male connector 4 can be engaged with other female connectors 5 to achieve fixation of the male connector 4. The connecting pipe 42 and the receiving groove 43 are used to guide the access of water to achieve stable entry into the water.

[0038] like Figure 5 As shown, a valve connecting pipe 51 is provided inside the female connector 5 , a valve female interface 52 is provided inside the valve connecting pipe 51 , and a valve liquid outlet interface 53 is provided at the rear side of the valve female interface 52 .

[0039] The male connector 4 is installed by cooperating with the auxiliary fixing port 41 through the valve female interface 52 on the inner side of the female connector 5, and the valve liquid outlet interface 53 is used to guide the water out of the water tank 14, so that the water is discharged through the valve female interface 52, thereby realizing the function of the drainage valve.

[0040] The male connector 4 and the female connector 5 at both ends of the utility model are DN32G, and the left and right sides are connected to the valve body in a straight line. The valve core 23 is installed vertically to the interface, and the internal liquid flows from bottom to top. The hand wheel is on the top, which is convenient for use.

[0041] The valve core 23 can be disassembled as a whole and fixed to the inner side of the valve body 1 by its own fixing gasket 24, which is convenient for maintenance and use. The valve pad 2 that directly seals can also be replaced separately and can be replaced independently when it is used for a long time.

[0042] There are through holes inside the valve stem 32 and the valve pad 2, leading to a cavity formed by the valve stem 32, the plug and the guide sleeve. There are sealing rings between the valve stem 32 and the plug, between the valve stem 32 and the guide sleeve, and between the plug and the guide sleeve to ensure the airtightness of the cavity.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A stop valve, comprising a valve body (1), characterized in that: A valve pad (2) is fixedly mounted on the top of the valve body (1); An inner support groove (21) is formed at the top of the valve pad (2), and a locking tube (22) is fixedly installed at the top of the inner support groove (21); A control wheel housing (3) is rotatably disposed at the top end of the valve pad (2); A wheel core (31) is fixedly mounted on the top of the control wheel housing (3), and a valve stem (32) is fixedly connected to the bottom of the wheel core (31); A male connector (4) and a female connector (5) are respectively installed on the left and right sides of the valve body (1).

2. A stop valve according to claim 1, characterized in that: The top end of the valve body (1) is fixedly connected to a side bracket (11), and mounting surfaces (12) are provided on the left and right sides of the valve body (1). The mounting surfaces (12) at both ends are respectively provided with a water inlet groove (13) and a water outlet groove (14).

3. A stop valve according to claim 1, characterized in that: A valve core (23) is installed inside the locking tube (22), a fixing gasket (24) is slidably connected inside the valve core (23), and an auxiliary fixing frame (25) is fixedly connected to the bottom end of the inner bracket groove (21).

4. A stop valve according to claim 1, characterized in that: The bottom end of the valve stem (32) is fixedly connected to a valve frame (33), and the bottom end of the valve frame (33) is slidably connected to a lifting groove (34).

5. A stop valve according to claim 1, characterized in that: The outer side of the male connector (4) is fixedly connected with an auxiliary fixing port (41), the inner side of the male connector (4) is provided with a connecting pipe (42), and the rear end of the connecting pipe (42) is provided with a receiving groove (43).

6. A stop valve according to claim 1, characterized in that: A valve connecting pipe (51) is provided inside the female connector (5), a valve female interface (52) is provided inside the valve connecting pipe (51), and a valve liquid outlet interface (53) is provided at the rear side of the valve female interface (52).

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