Rotary plunger expansion valve

Abstract

The utility model provides a rotary plunger expansion valve, which relates to the technical field of valves, and comprises a valve body, a channel is arranged in the valve body, a valve rod is rotatably connected in the channel, the valve rod is vertical to the channel, a valve port is formed on the valve rod, and the valve rod is used for blocking the channel or communicating with the channel through the valve port; a valve rod is fixedly connected to the top of the valve column, a valve seat is arranged on the side, facing the valve rod, of the valve body, and the valve rod extends out of the valve seat and is used for driving the valve column to rotate. The valve rod is sleeved with a rotating head, and the rotating head is used for driving the valve rod to rotate; the rotating head slides in the axis direction of the valve rod, a clamping block is arranged on the side, facing the valve seat, of the rotating head, a groove matched with the clamping block is formed in the valve seat, and the clamping block is arranged in the groove so as to fix the position of the valve rod in the channel. The position of the valve rod in the channel is fixed, valve leakage or valve flow limiting is avoided, the structure is simple, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, specifically, a kind of rotary plunger deployment valve. BACKGROUND

[0002] Valve is the control component in fluid conveying system, with multiple functions, in fluid system, to control the direction of fluid, pressure, flow, can make the medium in pipe and equipment flow or stop and can control its flow.

[0003] Rotary plunger deployment valve in use process, because water flow impact valve column inner wall, cause valve body vibration, lead to the relative displacement between valve column and valve body, cause valve leakage when valve is closed or cause valve flow limiting when valve is normally used. UTILITY MODEL CONTENT

[0004] The utility model is to solve the above-mentioned prior art problem, provide a kind of rotary plunger deployment valve, valve column and valve body are fixed when valve is closed and valve is normally used, avoid valve leakage or cause valve flow limiting, simple structure.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a kind of rotary plunger deployment valve, including valve body, channel is set in valve body, channel inside rotationally connected with valve column, valve column is vertically arranged in channel, valve port is formed on valve column, and valve column is used to block channel or connect channel through valve port;The top of valve column is fixedly connected with valve rod, and the side of valve body towards valve rod is provided with valve seat, and valve rod is arranged to extend out of valve seat, and valve rod is used to drive valve column to rotate;Rotary head is sleeved on valve rod, and rotary head is used to drive valve rod to rotate;Rotary head slides along the axial direction of valve rod, and rotary head and valve rod are clamped to drive valve rod to rotate, and the side of rotary head towards valve seat is provided with clamping block, and recess is arranged on valve seat and matched with clamping block, and clamping block is placed in recess to fix the position of valve column in channel.

[0007] Optionally, recess is provided with at least two, so that clamping block is in one of recess, and valve column blocks channel, or clamping block is in another recess, and valve column connects channel through valve port.

[0008] Optionally, clamping block and recess are provided with 4 respectively, and clamping block and recess are one-to-one corresponding, so that valve column is rotated 90 ° arbitrarily to realize the opening and closure switching of channel.

[0009] Optionally, the outer periphery of valve rod is provided with limiting portion on the side of valve seat away from valve body;The central position of rotary head is provided with slide way matched with the cross section of limiting portion, and rotary head is slidably installed on limiting portion.

[0010] Optionally, the two ends of the channel form an opening and an outlet respectively, liquid flows out of the outlet from the opening through the valve port, a plurality of buffer plates are arranged at the opening, one end of the buffer plate close to the opening is hinged to the inner wall of the channel, and a buffer spring is arranged between the buffer plate and the inner wall of the channel.

[0011] Optionally, the plurality of buffer plates are uniformly distributed along the channel in a circle.

[0012] Optionally, a stop block is arranged at the end of the valve rod away from the valve seat, the stop block is larger than the slide way to limit the rotary head.

[0013] Optionally, a dust cover is arranged at the side of the rotary head away from the valve seat, and the dust cover covers the stop block.

[0014] The beneficial effects of the utility model include: the utility model provides a kind of rotary plunger unfolding valve, including valve body, channel is opened in valve body, valve column is rotatably connected in channel interior, valve column is vertically arranged, valve port is formed on valve column, and valve column is used to block channel or pass through valve port to connect channel;The top of valve column is fixedly connected with valve rod, and the side of valve body towards valve rod is provided with valve seat, and valve rod is arranged to extend out of valve seat, and valve rod is used to drive valve column to rotate;Rotary head is sleeved on valve rod, and rotary head is used to drive valve rod to rotate;Rotary head slides along the axial direction of valve rod, and the side of rotary head towards valve seat is provided with clamping block, and recess is arranged on valve seat and matched with clamping block, and clamping block is placed in recess to fix the position of valve column in channel, and the utility model is fixed on valve seat by clamping block and recess cooperation, and valve rod cannot rotate, and the position of valve column in channel is fixed, and valve column and valve body are fixed when valve is closed and normally used, to avoid valve leakage or cause valve flow limiting, effectively fix valve column in channel, with simple structure and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is a structure schematic view of a kind of rotary plunger unfolding valve provided for the embodiment 1 of the present application;

[0017] Figure 2 It is one of structure schematic view of a kind of rotary plunger unfolding valve provided for the embodiment 2 of the present application;

[0018] Figure 3 It is the second of structure schematic view of a kind of rotary plunger unfolding valve provided for the embodiment 2 of the present application;

[0019] Figure 4 Figure 3 is a structural schematic diagram of a rotary plunger expansion valve provided in Embodiment 2 of the present application;

[0020] Figure 5 Figure 4 is a structural schematic diagram of a rotary plunger expansion valve provided in Embodiment 2 of the present application;

[0021] Figure 6 Figure 5 is a structural schematic diagram of a rotary head of a rotary plunger expansion valve provided in Embodiment 2 of the present application;

[0022] Figure 7 Figure 6 is a structural schematic diagram of a rotary head of a rotary plunger expansion valve provided in Embodiment 2 of the present application;

[0023] Figure 8 Figure 7 is a structural schematic diagram of a valve rod of a rotary plunger expansion valve provided in Embodiment 2 of the present application.

[0024] Figure 8 is a structural schematic diagram of a rotary plunger expansion valve provided in Embodiment 2 of the present application. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. It should be noted that, in the case of no conflict, each feature in the embodiments of the present application can be combined with each other, and the combined embodiment is still within the protection scope of the present application.

[0026] In the use process of the rotary plunger expansion valve, because of the water flow impacting the inner wall of the valve column, the valve body vibrates, causing the relative displacement between the valve column and the valve body, resulting in valve leakage when the valve is closed or causing the valve to restrict flow when the valve is normally used. To solve the above problems, the present application provides a rotary plunger expansion valve, which fixes the valve column 40 and the valve body 10 when the valve is closed and normally used, avoiding valve leakage or causing the valve to restrict flow, and the structure is simple.

[0027] As Figure 1As shown, Embodiment 1 of this application provides a rotary plunger deployment valve, including a valve body 10. A channel 11 is formed within the valve body 10, and a valve stem 40 is rotatably connected inside the channel 11. The valve stem 40 is positioned perpendicular to the channel 11, and a valve port 41 is formed on the valve stem 40. The valve stem 40 is used to block the channel 11 or to connect to the channel 11 through the valve port 41. A valve stem 42 is fixedly connected to the top of the valve stem 40, and a valve seat 20 is provided on the side of the valve body 10 facing the valve stem 42. The valve stem 42 extends out of the valve seat 20. The valve stem 42 is used to drive the valve column 40 to rotate; a rotating head 30 is sleeved on the valve stem 42, and the rotating head 30 is used to drive the valve stem 42 to rotate; the rotating head 30 slides along the axial direction of the valve stem 42, and the rotating head 30 and the valve stem 42 are engaged to drive the valve stem 42 to rotate. A locking block 31 is provided on the side of the rotating head 30 facing the valve seat 20. A groove 21 matching the locking block 31 is provided on the valve seat 20. The locking block 31 is placed in the groove 21 to fix the position of the valve column 40 in the channel 11. Figure 2 This is a schematic diagram of the rotary plunger unfolding valve of Embodiment 2 of this application.

[0028] like Figure 1 As shown, at least two grooves 21 are provided, so that the snap-fit ​​block 31 is in one of the grooves 21 and the valve stem 40 blocks the channel 11, or the snap-fit ​​block 31 is in the other groove 21 and the valve stem 40 connects to the channel 11 through the valve port 41.

[0029] Specifically, four snap-fit ​​blocks 31 and four grooves 21 are provided, with each snap-fit ​​block 31 and groove 21 corresponding to the other, so that the valve column 40 can be rotated 90° to switch the opening and closing of the channel 11. Figure 2 As shown in Embodiment 2 of this application, the snap-fit ​​block 31 is a cylinder, and the groove 21 is a cylindrical groove.

[0030] Example, Figure 2 and Figure 3 The diagram shows the structure of the rotary plunger unfolding valve provided in Embodiment 2 of this application, in which the valve stem 40 is fixed inside the valve body 10, and the snap-fit ​​block 31 is fixed inside the groove 21. Figure 4 and Figure 5 The diagram shows a rotary plunger unfolding valve provided in Embodiment 2 of this application, in which the valve stem 40 can rotate freely within the valve body 10, and the snap-fit ​​block 31 disengages from the groove 21.

[0031] Specifically, in embodiment 2 of this application, a limiting part 44 is provided on the outer periphery of the valve stem 42 on the side of the valve seat 20 away from the valve body 10; a slide rail 34 matching the cross-section of the limiting part 44 is provided at the center of the rotating head 30, and the rotating head 30 is slidably mounted on the limiting part 44. Figure 8 The diagram shown is a structural schematic of the valve stem 40 provided in an embodiment of this application. Figure 6 , Figure 7The diagram shown is a structural schematic of the rotating head 30 provided in an embodiment of this application.

[0032] For ease of use, a relief groove 32 is provided on the edge of the rotating head 30 facing the valve seat 20, so that when the snap-fit ​​block 31 is fixed in the groove 21, the rotating head 30 can be lifted through the relief groove 32. Multiple anti-slip strips 33 are evenly provided on the outer wall of the rotating head 30, and the anti-slip strips 33 extend in the vertical direction.

[0033] Specifically, such as Figure 1 As shown, the two ends of the channel 11 form an opening and an outlet, respectively. Liquid flows out from the outlet through the valve port 41. Multiple buffer plates 60 are provided at the opening. The end of the buffer plate 60 near the opening is hinged to the inner wall of the channel 11. A buffer spring is provided between the buffer plate 60 and the inner wall of the channel 11.

[0034] Furthermore, multiple buffer plates are evenly distributed in a circle along the radial direction of channel 11.

[0035] To prevent the rotating head 30 from detaching from the valve stem 42, a stop 43 is provided at the end of the valve stem 42 away from the valve seat 20. The stop 43 is larger than the slide rail 34 to limit the rotation head 30.

[0036] To prevent dust from entering between the limiting part 44 and the slide rail 34, a dust cover 50 is provided on the side of the rotating head 30 away from the valve seat 20, and the dust cover 50 covers the stop block 43.

[0037] The rotary plunger unfolding valve provided in this application has a rotating head 30 sleeved on a limiting part 44. The rotating head 30 can drive the valve stem 40 to block the channel 11 or connect to the channel 11 through the valve port 41. The rotating head 30 can be fixed to the valve seat 20 by a snap-fit ​​block 31, so that the valve stem 40 is fixed in the channel 11, preventing the valve stem 40 from rotating in the channel 11 due to water flow impact. This application also provides multiple buffer plates 60 at the opening of the channel 11, and a buffer spring is provided between the buffer plate 60 and the inner wall of the channel 11 to reduce the impact of water flow on the valve stem 40. This utility model fixes the rotating head 30 to the valve seat by the cooperation of the snap-fit ​​block 31 and the groove 21, so that the valve stem cannot rotate and the position of the valve stem 40 in the channel 11 is fixed. When the valve is closed or in normal use, the valve stem 40 and the valve body 10 are fixed, preventing valve leakage or flow restriction. It effectively fixes the valve stem 40 in the channel 11, with a simple structure and low cost.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary plunger deploying valve, characterized in that, Includes a valve body (10), the valve body (10) has a channel (11) inside, a valve column (40) is rotatably connected inside the channel (11), the valve column (40) is arranged perpendicular to the channel (11), a valve port (41) is formed on the valve column (40), the valve column (40) is used to block the channel (11) or to connect the channel (11) through the valve port (41); A valve stem (42) is fixedly connected to the top of the valve column (40). A valve seat (20) is provided on the side of the valve body (10) facing the valve stem (42). The valve stem (42) extends out of the valve seat (20). The valve stem (42) is used to drive the valve column (40) to rotate. A rotating head (30) is sleeved on the valve stem (42), and the rotating head (30) is used to drive the valve stem (42) to rotate; The rotating head (30) slides along the axial direction of the valve stem (42). A snap-fit ​​block (31) is provided on the side of the rotating head (30) facing the valve seat (20). A groove (21) matching the snap-fit ​​block (31) is provided on the valve seat (20). The snap-fit ​​block (31) is placed in the groove (21) to fix the position of the valve stem (40) in the channel (11).

2. The rotary plunger unfolding valve according to claim 1, characterized in that, At least two grooves (21) are provided, such that the snap-fit ​​block (31) is located in one of the grooves (21) and the valve stem (40) blocks the channel (11), or the snap-fit ​​block (31) is located in the other groove (21) and the valve stem (40) communicates with the channel (11) through the valve port (41).

3. The rotary plunger unfolding valve according to claim 1, characterized in that, There are four snap-fit ​​blocks (31) and four grooves (21). The snap-fit ​​blocks (31) and the grooves (21) correspond one-to-one, so that the valve column (40) can be rotated 90° to switch the opening and closing of the channel (11).

4. The rotary plunger unfolding valve according to claim 1, characterized in that, A limiting part (44) is provided on the outer periphery of the valve stem (42) on the side of the valve seat (20) away from the valve body (10); The center of the rotating head (30) is provided with a slide (34) that matches the cross-section of the limiting part (44), and the rotating head (30) is slidably mounted on the limiting part (44).

5. The rotary plunger unfolding valve according to claim 1, characterized in that, The two ends of the channel (11) form an opening and an outlet, respectively. Liquid flows out from the opening through the valve port (41) and out from the outlet. Multiple buffer plates (60) are provided at the opening. The end of the buffer plate (60) near the opening is hinged to the inner wall of the channel (11). A buffer spring is provided between the buffer plate (60) and the inner wall of the channel (11).

6. The rotary plunger deploying valve according to claim 5, characterized in that, Multiple buffer plates are evenly distributed in a circle along the radial direction of the channel (11).

7. The rotary plunger unfolding valve according to claim 4, characterized in that, A stop (43) is provided at the end of the valve stem (42) away from the valve seat (20). The stop (43) is larger than the slide rail (34) to limit the rotation head (30).

8. The rotary plunger unfolding valve according to claim 7, characterized in that, A dust cover (50) is provided on the side of the rotating head (30) away from the valve seat (20), and the dust cover (50) covers the stop block (43).

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