Bottle valve capable of adjusting flow

Abstract

The utility model discloses a bottle head valve capable of adjusting flow, and relates to the technical field of bottle head valves. Comprising a valve body, a valve element is arranged in a valve cavity of the valve body, a sealing ring is sleeved on the valve element, a valve cover is installed on the valve body through a bolt, a valve rod is installed in the valve cover in a threaded mode, the bottom end of the valve rod is fixedly connected with the valve element, a guide cylinder is arranged on the upper portion of the valve cover, a stepped shaft is movably sleeved in the guide cylinder, and a square inserting rod is arranged on the lower portion of the stepped shaft. According to the bottle head valve capable of adjusting the flow, the handle part and the valve rod are designed in a split mode, when the hand wheel is pressed downwards, the telescopic spring is compressed, the square inserting rod is inserted into the square hole, the opening degree of the valve can be adjusted by rotating the hand wheel, and therefore the flow of the valve is adjusted; when the hand wheel is rotated again, the valve rod is not controlled any more for adjustment, and the defect that the hand wheel is collided by mistake to cause secondary flow adjustment can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle head valves, in particular to a bottle head valve with adjustable flow. Background Art

[0002] The bottle head valve is a common valve, also known as the bottle plug valve or bottle mouth valve. Its main purpose is to control the flow and pressure of the fluid in the liquid delivery system. The bottle head valve is commonly used in the petroleum, chemical, pharmaceutical, food and other industries. It plays an important role in industrial production. The bottle head valve can be used to regulate the flow of the fluid. When the flow of the fluid needs to be controlled, the valve opening can be adjusted by rotating the bottle head valve, thereby changing the channel area of ​​the fluid to achieve the purpose of regulating the flow.

[0003] For most of the bottle head valves with adjustable flow, the flow can be adjusted according to the actual use environment when in use, so that the gas in the container can be released for use by adjusting the bottle head valve according to different needs. Although most of the existing bottle head valves with adjustable flow are easy to operate and reliable for flow adjustment operations in different environments, for some of the bottle head valves with adjustable flow, after the flow is adjusted, the rotary button used to control the flow adjustment of the bottle head valve cannot form an effective limit, and the knob is often accidentally hit and deflected, or accidentally rotated when it is stationary, which causes problems such as stability in the use of the adjustable flow bottle head valve. Utility Model Content

[0004] The utility model provides a bottle head valve with adjustable flow rate to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bottle head valve with adjustable flow, comprising a valve body, a valve core is provided in the valve cavity of the valve body, and a sealing ring is sleeved on the valve core, a valve cover is mounted on the valve body by bolts, and a valve stem is threadedly mounted in the valve cover, the bottom end of the valve stem is fixedly connected to the valve core, a guide cylinder is provided on the upper part of the valve cover, and a stepped shaft is movably sleeved in the guide cylinder, a square plug rod is provided at the lower part of the stepped shaft, and a telescopic spring is sleeved on the square plug rod, a square hole is opened on the top of the valve stem, and the square hole corresponds to the position of the square plug rod, and a handwheel is mounted on the top of the stepped shaft.

[0006] Furthermore, both ends of the valve cavity of the valve body are provided with an inlet and an outlet, and the inlet and the outlet are communicated with the valve cavity of the valve body.

[0007] Furthermore, the sealing ring is located at the upper and lower ends of the valve core, and the sealing ring is located between the valve core and the valve cavity of the valve body.

[0008] Furthermore, a sealing gasket is installed on the top of the valve cavity of the valve body, and the sealing gasket is located between the valve body and the valve cover.

[0009] Furthermore, a sealing filler is provided in the valve cover, and the sealing filler is located between the valve cover and the valve stem.

[0010] Furthermore, the telescopic spring is located between the top end of the square plug rod and the top end of the valve stem, and the square plug rod and the square hole are movably connected to each other.

[0011] Compared with the prior art, the present invention provides a flow-adjustable bottle valve with the following beneficial effects:

[0012] The flow-adjustable bottle head valve adopts a split design for the handle part and the valve stem. When the handwheel is pressed down, the telescopic spring is compressed, and the square rod is inserted into the square hole. The opening and closing size of the valve can be adjusted by turning the handwheel, thereby adjusting the flow of the valve. When the handwheel is released, the telescopic spring expands, which can push the handle part upward and separate it from the valve stem. When the handwheel is turned again, the valve stem is no longer controlled for adjustment, which can reduce the disadvantage of secondary flow adjustment caused by accidentally hitting the handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 This is a schematic diagram of the operation of the utility model.

[0016] In the figure: 1. Valve body; 2. Valve core; 3. Sealing ring; 4. Valve cover; 5. Valve stem; 6. Guide cylinder; 7. Stepped shaft; 8. Square plug rod; 9. Telescopic spring; 10. Square hole; 11. Handwheel; 12. Inlet and outlet; 13. Sealing gasket; 14. Sealing packing. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 3The utility model discloses a bottle head valve with adjustable flow, comprising a valve body 1, a valve core 2 is provided in the valve cavity of the valve body 1, and a sealing ring 3 is sleeved on the valve core 2, a valve cover 4 is mounted on the valve body 1 by bolts, and a valve stem 5 is threadedly mounted in the valve cover 4, the bottom end of the valve stem 5 is fixedly connected to the valve core 2, a guide cylinder 6 is provided on the upper part of the valve cover 4, and a stepped shaft 7 is movably sleeved in the guide cylinder 6, a square plug rod 8 is provided at the lower part of the stepped shaft 7, and a telescopic spring 9 is sleeved on the square plug rod 8, a square hole 10 is opened on the top of the valve stem 5, and the square hole 10 is screwed in the valve cover 4, and the bottom end of the valve stem 5 is fixedly connected to the valve core 2 ... 0 corresponds to the position of the square plug rod 8. A handwheel 11 is installed on the top of the stepped shaft 7. The handle part and the valve stem 5 adopt a split design. When the handwheel 11 is pressed downward, the telescopic spring 9 is compressed, and the square plug rod 8 is inserted into the square hole 10. The opening and closing size of the valve can be adjusted by turning the handwheel 11, so as to adjust the flow rate of the valve. When the handwheel 11 is released, the telescopic spring 9 opens, and the handle part can be pushed upward to separate it from the valve stem 5. When the handwheel 11 is turned again, the valve stem 5 is no longer controlled for adjustment, which can reduce the disadvantage of secondary flow adjustment caused by accidentally hitting the handwheel 11.

[0019] Specifically, an inlet and an outlet 12 are provided at both ends of the valve cavity of the valve body 1 , and the inlet and the outlet 12 are communicated with the valve cavity of the valve body 1 .

[0020] In this embodiment, the inlet and outlet 12 are interfaces for the inflow and outflow of the medium. When the valve core 2 rises, the channel is opened and the medium can flow in or out. The flow rate of the valve can be adjusted according to the rising stroke of the valve core 2.

[0021] Specifically, the sealing ring 3 is located at the upper and lower ends of the valve core 2 , and the sealing ring 3 is located between the valve core 2 and the valve cavity of the valve body 1 .

[0022] In this embodiment, the main function of the sealing ring 3 is to seal the gap of the device to prevent fluid or matter from leaking from the inside of the device to the external environment, or penetrating from the external environment into the inside of the device. Here, the main function is to ensure the sealing of the valve core 2.

[0023] Specifically, a sealing gasket 13 is installed on the top of the valve cavity of the valve body 1 , and the sealing gasket 13 is located between the valve body 1 and the valve cover 4 .

[0024] In this embodiment, the sealing gasket 13 can fill the gap between the two contact surfaces, thereby achieving connection and preventing medium leakage, and here it mainly ensures the sealing performance of the valve cover 4.

[0025] Specifically, a sealing filler 14 is provided in the valve cover 4 , and the sealing filler 14 is located between the valve cover 4 and the valve stem 5 .

[0026] In this embodiment, the sealing filler 14 is a technology used to establish a seal between the rotating shaft and the stationary housing, and is mainly used to ensure the sealing performance of the valve stem 5.

[0027] Specifically, the telescopic spring 9 is located between the top end of the square plug rod 8 and the top end of the valve stem 5 , and the square plug rod 8 and the square hole 10 are movably connected to each other.

[0028] In this embodiment, when the hand wheel 11 is pressed downward, the telescopic spring 9 is compressed, the square rod 8 is inserted into the square hole 10, and the opening and closing size of the valve can be adjusted by turning the hand wheel 11. When the hand wheel 11 is released, the telescopic spring 9 opens, and the handle part can be pushed upward to separate it from the valve stem 5.

[0029] When in use, the handle part and the valve stem 5 adopt a split design. When the handwheel 11 is pressed downward, the telescopic spring 9 is compressed, and the square plug rod 8 is inserted into the square hole 10. The opening and closing size of the valve can be adjusted by turning the handwheel 11, thereby adjusting the flow of the valve. When the handwheel 11 is released, the telescopic spring 9 opens, and the handle part can be pushed upward to separate it from the valve stem 5. When the handwheel 11 is turned again, the valve stem 5 is no longer controlled for adjustment, that is, a second operation is required to control the valve stem 5. This operation method can reduce the disadvantage of secondary flow adjustment caused by accidentally hitting the handwheel 11.

[0030] To sum up, the handle part and the valve stem 5 of the adjustable flow bottle head valve adopt a split design. When the hand wheel 11 is pressed downward, the telescopic spring 9 is compressed, and the square plug rod 8 is inserted into the square hole 10. The opening and closing size of the valve can be adjusted by turning the hand wheel 11, thereby adjusting the flow of the valve. When the hand wheel 11 is released, the telescopic spring 9 opens, and the handle part can be pushed upward to separate it from the valve stem 5. When the hand wheel 11 is turned again, the valve stem 5 is no longer controlled for adjustment, which can reduce the disadvantage of secondary flow adjustment caused by accidentally hitting the hand wheel 11.

[0031] 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 these 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 flow-adjustable bottle valve, comprising a valve body (1), characterized in that: A valve core (2) is provided in the valve cavity of the valve body (1), and a sealing ring (3) is sleeved on the valve core (2); a valve cover (4) is installed on the valve body (1) by bolts, and a valve stem (5) is threadedly installed in the valve cover (4); the bottom end of the valve stem (5) is fixedly connected to the valve core (2); a guide cylinder (6) is provided on the upper part of the valve cover (4), and a stepped shaft (7) is movably sleeved in the guide cylinder (6); a square plug rod (8) is provided on the lower part of the stepped shaft (7), and a telescopic spring (9) is sleeved on the square plug rod (8); a square hole (10) is opened on the top of the valve stem (5), and the square hole (10) corresponds to the position of the square plug rod (8); a hand wheel (11) is installed on the top of the stepped shaft (7).

2. The flow-adjustable bottle valve according to claim 1, characterized in that: An inlet and an outlet (12) are provided at both ends of the valve cavity of the valve body (1), and the inlet and the outlet (12) are in communication with the valve cavity of the valve body (1).

3. The flow-adjustable bottle valve according to claim 1, characterized in that: The sealing ring (3) is located at the upper and lower ends of the valve core (2), and the sealing ring (3) is located between the valve core (2) and the valve cavity of the valve body (1).

4. The flow-adjustable bottle valve according to claim 1, characterized in that: A sealing gasket (13) is installed on the top of the valve cavity of the valve body (1), and the sealing gasket (13) is located between the valve body (1) and the valve cover (4).

5. The flow-adjustable bottle valve according to claim 1, characterized in that: A sealing filler (14) is provided in the valve cover (4), and the sealing filler (14) is located between the valve cover (4) and the valve stem (5).

6. The flow-adjustable bottle valve according to claim 1, characterized in that: The telescopic spring (9) is located between the top end of the square plug rod (8) and the top end of the valve stem (5), and the square plug rod (8) and the square hole (10) are movably connected to each other.

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