A stop valve

Abstract

The utility model discloses a stop valve, comprising: a valve body, wherein the two inner ends of the valve body are respectively provided with an input channel and an output channel, a connecting port is provided between the input channel and the output channel, and the connecting port connects the input channel and the output channel; a sealing plug, wherein the sealing plug blocks the connecting port; and a driving module, wherein the driving module is connected to the valve body, and the output end of the driving module is connected to the sealing plug, and the sealing plug is driven to move, and the opening and closing of the connecting port is controlled. The utility model has a novel structural design, a simple structure, a precise valve opening and closing stroke, low operating noise, and a service life of more than 300,000 times.

Description

Technical Field

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

[0002] Most of the existing electric stop valves are driven by electromagnetic drive or manual drive, both of which are traditional structures, not novel, and the overall structural design is very complicated. Summary of the invention

[0003] According to an embodiment of the utility model, a stop valve is provided, comprising:

[0004] A valve body, wherein an input channel and an output channel are respectively arranged at two ends of the valve body, a communication port is arranged between the input channel and the output channel, and the communication port connects the input channel and the output channel;

[0005] A sealing plug, which blocks the communication port;

[0006] A driving module is connected to the valve body, and an output end of the driving module is connected to the sealing plug to drive the sealing plug to move and control the opening and closing of the connecting port.

[0007] Furthermore, the driver module includes:

[0008] A driving rod, the top end of which passes through the valve body and is connected to the sealing plug;

[0009] A rack, which is arranged at the bottom end of the driving rod;

[0010] A driver connected to the valve body;

[0011] The gear is connected to the output end of the driver and meshes with the rack.

[0012] Furthermore, the rack and the driving rod are integrally formed.

[0013] Furthermore, a limiting protrusion is provided on the driving rod to limit the movement stroke of the driving rod.

[0014] Furthermore, the sealing plug is a bottom opening structure, and the sealing plug covers the driving rod so that the driving rod does not contact the external conveying medium.

[0015] Furthermore, the sealing plug is made of rubber.

[0016] A stop valve according to an embodiment of the utility model has a novel and simple structural design, precise valve opening and closing strokes, low operating noise, and a service life of more than 300,000 times.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a three-dimensional structural schematic diagram of a stop valve according to an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the front cross-sectional structure of a stop valve according to an embodiment of the utility model.

[0020] Figure 3 It is a schematic diagram of a top view and cross-sectional structure of a stop valve according to an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0022] First, combine Figures 1 to 3 A stop valve according to an embodiment of the utility model is described, which is used to be connected to an external pipeline to achieve on-off control during medium transportation, and has a wide range of application scenarios.

[0023] like Figures 1 to 3 As shown, a stop valve according to an embodiment of the utility model comprises a valve body 1, a sealing plug 2 and a driving module.

[0024] Specifically, Figures 1 to 3 As shown, an input channel 11 and an output channel 12 are respectively provided at two ends of the valve body 1 , and a communication port 13 is provided between the input channel 11 and the output channel 12 , and the communication port 13 connects the input channel 11 and the output channel 12 .

[0025] Specifically, Figure 2~3 As shown, the sealing plug 2 blocks the communication port 13, and the sealing plug 2 is made of rubber.

[0026] Specifically, Figure 2~3 As shown, the driving module is connected to the valve body 1, and the output end of the driving module is connected to the sealing plug 2, driving the sealing plug 2 to move, and controlling the opening and closing of the communication port 13. The driving module includes: a driving rod 31, a rack 32, a driver 33 and a gear 34. The top end of the driving rod 31 passes through the valve body 1 and is connected to the sealing plug 2; the rack 32 is arranged at the bottom end of the driving rod 31, and the rack 32 guide is arranged on the valve body 1; the driver 33 is connected to the valve body 1, and the driver 33 can be a stepping motor; the gear 34 is connected to the output end of the driver 33, and meshes with the rack 32.

[0027] Further, if Figure 2~3 As shown, the rack 32 and the driving rod 31 are integrally formed to ensure strength and stability.

[0028] Further, if Figure 2~3As shown, a limiting protrusion 35 is provided on the driving rod 31 for limiting the movement stroke of the driving rod 31 .

[0029] Further, if Figure 2~3 As shown, the sealing plug 2 is a bottom opening structure, and the sealing plug 2 covers the driving rod 31, so that the driving rod 31 does not contact with the external conveying medium, protects the driving rod 31 from corrosion, and prevents the driving rod 31 from contaminating the conveying medium.

[0030] Working principle:

[0031] When it is necessary to open, the driver 33 is controlled to move, driving the gear 34 to rotate, thereby driving the rack 32 to move downward, so that the driving rod 31 drives the sealing plug 2 to move downward and deform, no longer blocking the connecting port 13, allowing the conveying medium to flow and be transported between the input channel 11 and the output channel 12.

[0032] When closing is required, the driver 33 moves in the reverse direction, driving the gear 34 to rotate in the reverse direction, thereby driving the rack 32 to move upward, so that the driving rod 31 drives the sealing plug 2 to move upward and deform, blocking the connecting port 13 again, so that the conveying medium cannot flow between the input channel 11 and the output channel 12.

[0033] Above, refer to Figures 1 to 3 A stop valve according to an embodiment of the utility model is described, which has a novel structural design, a simple structure, precise valve opening and closing strokes, low operating noise, and a service life of more than 300,000 times.

[0034] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A stop valve, characterized in that: Include: A valve body, wherein an input channel and an output channel are respectively provided at two ends of the valve body, a communication port is provided between the input channel and the output channel, and the communication port connects the input channel and the output channel; A sealing plug, the sealing plug blocks the communication port; A driving module is connected to the valve body, and an output end of the driving module is connected to the sealing plug, driving the sealing plug to move and controlling the opening and closing of the communication port.

2. The stop valve according to claim 1, characterized in that: The driving module comprises: A driving rod, the top end of which passes through the valve body and is connected to the sealing plug; A rack, the rack being arranged at the bottom end of the driving rod; A driver connected to the valve body; A gear is connected to the output end of the driver and meshes with the rack.

3. The stop valve according to claim 2, characterized in that: The rack and the driving rod are integrally formed.

4. The stop valve according to claim 2, characterized in that: The driving rod is provided with a limiting protrusion for limiting the movement stroke of the driving rod.

5. The stop valve according to claim 2, characterized in that: The sealing plug is a bottom opening structure, and the sealing plug covers the driving rod so that the driving rod does not contact with the external conveying medium.

6. The stop valve according to claim 1, characterized in that: The sealing plug is made of rubber.

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