Gate valve with signal feedback

Abstract

The gate valve with the signal feedback function comprises a valve body, opening and closing of the valve body are controlled through rotation of a valve rod, the valve rod protrudes out of the top of the valve body, the valve rod is connected to an installation block through threads, a sliding block is formed on one side of the installation block, a positioner is installed on one side of the sliding block, and the positioner is connected with the valve rod through threads. The sliding block is attached to a shaft body in a sleeved mode, and the axis of the shaft body is parallel to the axis of the valve rod. According to the technical scheme, the switch position signal transmission device of the gate valve can accurately identify the instant working state of the valve, is sensitive in response, can remotely and accurately judge the state position of the valve, and facilitates on-site inspection.

Description

Technical Field

[0001] The present application relates to a valve structure, and in particular to a gate valve with signal feedback. Background Art

[0002] Gate valves are mainly used to control the flow of various types of fluids. The valve body is opened and closed by turning the handwheel manually, but the open and closed status of the valve body cannot be judged in a timely and accurate manner. Utility Model Content

[0003] The purpose of the utility model is to provide a gate valve with signal feedback, which can accurately identify the immediate working state of the valve, react sensitively, and can remotely and accurately determine the valve state position, facilitating on-site inspection of the gate valve switch position signal transmission device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] The embodiment of the present application discloses a gate valve with signal feedback, wherein the valve body is controlled to open and close by the rotation of a valve stem, the valve stem protrudes from the top of the valve body, the valve stem is connected to a mounting block by a thread, a slider is formed on one side of the mounting block, a positioner is installed on one side of the slider, the slider is fitted on a shaft body, and the axis of the shaft body is parallel to the axis of the valve stem.

[0006] When the valve stem rotates to drive the valve body to open and close, the rotation of the valve stem drives the mounting block and the slider to move up and down, thereby driving the positioner to connect to different signal interfaces.

[0007] Preferably, in the above-mentioned gate valve with signal feedback, the different signal interface is a proximity switch.

[0008] Preferably, in the above-mentioned gate valve with signal feedback, the positioner is located inside the shell, and the top and bottom of the shell limit the position of the slider.

[0009] Preferably, in the above-mentioned gate valve with signal feedback, a handle is formed on the top of the valve stem.

[0010] Preferably, in the above-mentioned gate valve with signal feedback, a gland is formed on the top of the valve body, and a filler is filled below the gland on the outside of the valve stem.

[0011] Preferably, in the above-mentioned gate valve with signal feedback, a valve cover is provided below the gland.

[0012] Preferably, in the above-mentioned gate valve with signal feedback, a gate plate is provided inside the valve body, and the valve stem is connected to the gate plate through threads.

[0013] Compared with the prior art, the advantage of this technical solution is that by manually turning the handwheel, the valve stem rotates together to achieve normal opening and closing of the gate. At the same time, since the mounting block is threadedly connected to the valve stem, and the slider integrated with the mounting block is sleeved on the shaft body, when the valve stem rotates, it will drive the slider to move up and down, thereby connecting different signal interfaces and realizing ultimate remote monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 Shown is a schematic diagram of a gate valve with signal feedback in an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0017] Combination Figure 1 As shown, the gate valve 100 with signal feedback includes a valve body 101, and the valve body 101 is controlled to open and close by the rotation of a valve stem 102. The valve stem 102 protrudes from the top of the valve body 101, and the valve stem 102 is connected to a mounting block 103 by a thread. A slider 104 is formed on one side of the mounting block 103, and a positioner 105 is installed on one side of the slider 104. The slider 104 is fitted and sleeved on a shaft body 106, and the axis of the shaft body 106 is parallel to the axis of the valve stem 102.

[0018] When the valve stem 102 rotates to drive the valve body 101 to open or close, the rotation of the valve stem 102 drives the mounting block 103 and the slider 104 to move up and down, thereby driving the positioner 105 to connect to different signal interfaces 107 .

[0019] In this embodiment, the handwheel is manually turned, and the valve stem rotates together to achieve normal opening and closing of the gate. At the same time, since the mounting block is threadedly connected to the valve stem, and the slider integrated with the mounting block is sleeved on the shaft body, when the valve stem rotates, it will drive the slider to move up and down, thereby connecting different signal interfaces to achieve ultimate remote monitoring.

[0020] Furthermore, the different signal interface 107 is a proximity switch.

[0021] In this embodiment, a proximity switch is preferred, as the technical solution is simple and reliable.

[0022] Furthermore, the positioner 105 is located inside the housing 108 , and the top and bottom of the housing 108 limit the position of the slider 104 .

[0023] In this embodiment, the positioner is protected while limiting the transition displacement.

[0024] Further, a handle 109 is formed at the top of the valve stem 102. A gland 110 is formed at the top of the valve body 101, and a packing 111 is filled below the gland 110 on the outside of the valve stem 102. A valve cover 112 is provided below the gland 110. A gate plate 113 is provided inside the valve body 101, and the valve stem 102 and the gate plate 113 are connected by threads.

[0025] In this embodiment, normal opening and closing of the valve is achieved.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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 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 "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A gate valve with signal feedback, characterized in that: The valve body comprises a valve body, the valve body is controlled to open and close by the rotation of a valve stem, the valve stem protrudes from the top of the valve body, the valve stem is connected to a mounting block by a thread, a slider is formed on one side of the mounting block, a positioner is installed on one side of the slider, the slider is fitted and sleeved on a shaft body, the axis of the shaft body and the axis of the valve stem are parallel to each other, When the valve stem rotates to drive the valve body to open and close, the rotation of the valve stem drives the mounting block and the slider to move up and down, thereby driving the positioner to connect to different signal interfaces.

2. The gate valve with signal feedback according to claim 1, characterized in that: The different signal interfaces are proximity switches.

3. The gate valve with signal feedback according to claim 1, characterized in that: The positioner is located inside the shell, and the top and bottom of the shell limit the position of the slider.

4. The gate valve with signal feedback according to claim 1, characterized in that: A handle is formed on the top of the valve stem.

5. The gate valve with signal feedback according to claim 1, characterized in that: A gland is formed on the top of the valve body, and a filler is filled below the gland on the outer side of the valve stem.

6. The gate valve with signal feedback according to claim 5, characterized in that: A valve cover is arranged below the gland.

7. The gate valve with signal feedback according to claim 1, characterized in that: A gate plate is arranged inside the valve body, and the valve stem is connected to the gate plate through threads.

Images