Chuck butterfly valve

Abstract

According to the technical scheme, the chuck butterfly valve is characterized in that the chuck butterfly valve comprises a valve body, an operating handle and a chuck body, the chuck body and the operating handle are both installed at the upper end of the valve body, the operating handle comprises a connecting plate and a pressing plate, one end of the connecting plate is connected with the valve body, and a limiting part is detachably installed at the other end of the connecting plate; mounting grooves are symmetrically formed in the upper side and the lower side of the limiting part, two sets of limiting pieces and a limiting switch are arranged in the limiting part, and the limiting switch is in linkage with the two limiting pieces and is arranged on one side of the limiting part. A rotating part and a clamping part are arranged on the pressing plate, the rotating part is rotationally connected to the connecting plate through a torsional spring, and the clamping part is used for being matched with the chuck body; a linkage part is arranged at one end of the pressing plate and used for being in linkage fit with the limiting piece, and the butterfly valve can conveniently conduct limiting and releasing operation on the handle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a butterfly valve, more specifically, it relates to a chuck butterfly valve. BACKGROUND

[0002] The chuck butterfly valve is a special type of butterfly valve, its main feature lies in that the chuck connection form is adopted, this connection mode makes the installation and dismounting of the butterfly valve more convenient and fast, and is suitable for the occasions needing frequent replacement or maintenance.

[0003] The chuck butterfly valve is a rotary valve that opens and closes the valve through 90 or approximate 90 rotation of the disc-shaped closing member (such as a circle or rectangle), and the connection form adopts the chuck type.

[0004] The working principle of the chuck butterfly valve is to drive the disc plate to perform opening and closing action by rotating the valve rod. In the valve body of the butterfly valve, a disc-shaped butterfly plate is installed in the cylindrical channel, which can rotate around the axis. When the butterfly plate rotates to 90 degrees, the valve will be completely opened. At the same time, by adjusting the angle of the butterfly plate, the flow of the medium can be effectively adjusted. However, due to the design of the handle and the chuck, the operator needs to hold the handle for a long time, which affects the operation experience, so a butterfly valve that is convenient to operate is needed. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a chuck butterfly valve, which can conveniently limit and release the handle.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a chuck butterfly valve, comprising a valve body, an operating handle and a chuck body, the chuck body and the operating handle are both installed on the upper end of the valve body, the operating handle comprises a connecting plate and a pressing plate, one end of the connecting plate is connected with the valve body, and the other end is detachably installed with a limiting part, the limiting part is symmetrically provided with a mounting groove on the upper and lower sides, a limiting part and a limiting switch are arranged in the limiting part, the limiting part is provided with two groups, the limiting switch is respectively connected with the two limiting parts, and is arranged on one side of the limiting part.

[0007] A rotating part and a clamping part are arranged on the pressing plate, the rotating part is rotatably connected to the connecting plate through a torsional spring, and the clamping part is used for cooperating with the chuck body.

[0008] One end of the pressing plate is provided with a linkage part, and the linkage part is used for linkage cooperation with the limiting part.

[0009] The utility model is further provided as follows: the valve body comprises a valve body, a valve plate and a valve rod, the valve plate is rotatably connected in the valve body, one end of the valve rod is connected with the valve plate, and the other end is connected with the connecting plate.

[0010] The utility model further sets up: the limit part is provided with the plug-in rod, the connecting plate is provided with the plug-in groove that the plug-in rod inserts, the plug-in rod is provided with the screw groove, the connecting plate is provided with the threaded hole that communicates with the plug-in groove.

[0011] The utility model further sets up: the limit piece includes limit rod and limit spring, the limit part is provided with the limit slot, the limit rod is connected in the limit slot through the limit spring sliding, the linkage part is provided with the limit slot that the limit rod inserts.

[0012] The utility model further sets up: one end of limit rod is provided with limit head, the lower end surface of limit head is inclined surface setting.

[0013] The utility model further sets up: the limit switch includes limit button, linkage spring and linkage piece, the limit part is provided with the linkage slot, the limit button is connected in the linkage slot through the linkage spring sliding, the limit button is through linkage piece and limit rod linkage cooperation.

[0014] The utility model further sets up: the linkage piece includes linkage gear, the limit button and limit rod all are provided with the tooth structure of linkage gear meshing cooperation, the limit button and limit rod are respectively meshed in the both sides of linkage gear.

[0015] The utility model further sets up: the limit part can detachably install the cover.

[0016] Summarized above, the utility model has following beneficial effect: when needing to carry out the rotating operation handle, first presses the pressing plate upwards, makes the linkage part enter to the installation slot, finally makes the limit piece and clamps the linkage part, when the operator does not need to hold the handle tightly all the time, plays the effect that operation is convenient.

[0017] And the habitual hand of different people is left hand or right hand respectively, but the grip posture is relatively unified, so sets up the limit switch in one side of connecting plate, when normal grip posture, palm will not be resisted with limit switch, thereby guaranteeing the stability of limiting, when the habitual hand is not same, can adjust linkage part, change the position of limit switch, also avoid palm will not be resisted with limit switch. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic view of chuck butterfly valve;

[0019] Figure 2 It is the sectional view of connecting plate.

[0020] Fig. 1, valve body; 2, operating handle; 3, chuck body; 4, connecting plate; 41, limiting part; 411, limiting groove; 42, mounting groove; 43, threaded hole; 5, pressing plate; 51, clamping part; 52, linkage part; 521, rotation limiting groove; 6, limiting piece; 61, limiting rod; 62, limiting spring; 7, limiting switch; 71, limiting button; 72, linkage piece; 8, cover. DETAILED DESCRIPTION

[0021] The utility model is further explained in detail below in combination with the drawings and examples. Same parts are indicated by same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific part.

[0022] Referring to Figure 1 and Figure 2 To achieve the above object, the utility model provides the following technical scheme: a chuck butterfly valve, including valve body 1, operating handle 2 and chuck body 3, valve body 1 includes valve body, valve plate and valve rod, the valve plate is rotationally connected in the valve body, one end of the valve rod is connected with the valve plate, and the other end is connected with the connecting plate 4.

[0023] The chuck body 3 and the operating handle 2 are both installed on the upper end of the valve body 1, the operating handle 2 includes the connecting plate 4 and the pressing plate 5, one end of the connecting plate 4 is connected with the valve body 1, and the other end is detachably installed with the limiting part 41, the upper and lower sides of the limiting part 41 are symmetrically provided with the mounting groove 42, the limiting piece 6 and the limiting switch 7 are arranged in the limiting part 41, the limiting piece 6 is provided with two groups, the limiting switch 7 is arranged on one side of the limiting part 41 and is linked with the two limiting pieces 6.

[0024] The pressing plate 5 is provided with a rotating part and a clamping part 51, the rotating part is rotationally connected to the connecting plate 4 through a torsional spring, and the clamping part 51 is used for cooperating with the chuck body 3; the structure is a conventional design of the chuck butterfly valve, and will not be described here.

[0025] One end of the pressing plate 5 is provided with a linkage part 52, and the linkage part 52 is used for linkage cooperation with the limiting piece 6.

[0026] When the operating handle 2 needs to be rotated, the pressing plate 5 is first pressed upward, so that the linkage part 52 enters the mounting groove 42, and finally the limiting piece 6 clamps the linkage part 52, so that the operator does not need to hold the handle all the time, and the effect of convenient operation is achieved.

[0027] And different people's dominant hand is left hand or right hand, but the grip posture is relatively uniform, so the limit switch 7 is arranged on one side of the connecting plate 4, when the normal grip posture, the palm will not be in contact with the limit switch 7, so as to ensure the stability of the limit, when the dominant hand is not the same, the linkage part 52 can be adjusted, the position of the limit switch 7 is changed, and the palm will not be in contact with the limit switch 7.

[0028] The normal grip posture of the right hand is that the thumb is against the upper end of the connecting plate 4, and the four fingers press the pressing plate 5, at this time, the palm corresponds to the right side of the connecting plate 4, and at this time, the position of the limit switch 7 is on the left side of the connecting plate 4.

[0029] The utility model further sets up: the limit part 41 is provided with the plug-in rod, the connecting plate 4 is provided with the plug-in slot for the plug-in rod insertion, the plug-in rod is provided with the screw groove, the connecting plate 4 is provided with the screw hole 43 in communication with the plug-in slot.

[0030] The structure is designed, the position of the upper and lower two installation grooves 42 is exchanged after the limit part 41 is rotated 180 DEG, at this time, the left and right sides of the limit switch 7 position are changed to meet the design of different dominant hands.

[0031] After rotating 180 DEG, the plug-in rod is inserted into the plug-in slot, and the external bolt is inserted, so that the connecting plate 4 and the limit part 41 are fixed.

[0032] The utility model further sets up: the limit piece 6 includes the limit rod 61 and the limit spring 62, the limit part 41 is provided with the limit slot 411, the limit rod 61 is slidably connected in the limit slot 411 through the limit spring 62, the linkage part 52 is provided with the limit rotation slot 521 for the limit rod 61 insertion.

[0033] One end of the limit rod 61 is provided with a limit head, and the lower end surface of the limit head is provided as an inclined surface.

[0034] The structure is designed, when the mounting plate moves upwards, the lower end surface of the limit head is abutted, so that the limit head moves into the limit slot 411 and compresses the limit spring 62.

[0035] When the mounting plate continuously moves upwards until the limit rotation slot 521 is aligned with the limit head, the limit rod 61 is pushed outwards under the action of the limit spring 62 and is inserted into the limit rotation slot 521, thereby limiting the mounting plate.

[0036] The utility model further sets up: the limit switch 7 includes a limit button 71, a linkage spring (not shown in the drawing) and a linkage piece 72, the limit part 41 is provided with a linkage slot, the limit button 71 is slidably connected in the linkage slot through the linkage spring, and the limit button 71 is linked and matched with the limit rod 61 through the linkage piece 72.

[0037] The linkage 72 comprises a linkage gear, the limiting button 71 and the limiting rod 61 are respectively provided with toothed structures which are engaged with the linkage gear, and the limiting button 71 and the limiting rod 61 are respectively engaged on two sides of the linkage gear.

[0038] For example, when the limiting rod 61 moves to the left, the linkage gear is rotated clockwise by the toothed structure, and at this time, the limiting button 71 moves to the right, when the limiting rod 61 moves to the right and forms the limiting, the limiting button 71 moves to the left and protrudes. Figure 2

[0039] Similarly, when the limiting button 71 is pressed and moves to the right, the linkage gear rotates clockwise, and the limiting rod 61 moves to the left, so as to be separated from the limiting groove 521, and the pressing plate 5 moves downward under the action of the torsional spring.

[0040] The utility model further sets up: the cover 8 can be detachably installed on the limiting portion 41.

[0041] The design of the structure can block the upper installation groove 42.

[0042] The above is only the preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical schemes under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary skilled person in the art, some improvements and decorations without departing from the principle of the utility model, these improvements and decorations should also be regarded as the protection scope of the utility model.​

Claims

1. A chuck butterfly valve, comprising a valve body (1), an operating handle (2), and a chuck body (3), wherein the chuck body (3) and the operating handle (2) are both mounted on the upper end of the valve body (1), characterized in that: The operating handle (2) includes a connecting plate (4) and a pressing plate (5). One end of the connecting plate (4) is connected to the valve body (1), and the other end is detachably installed with a limiting part (41). The upper and lower sides of the limiting part (41) are symmetrically provided with mounting grooves (42). The limiting part (41) is provided with a limiting component (6) and a limiting switch (7). There are two sets of limiting components (6). The limiting switch (7) is linked to the two limiting components (6) respectively and is located on one side of the limiting part (41). The pressing plate (5) is provided with a rotating part and a snap-fit ​​part (51). The rotating part is rotatably connected to the connecting plate (4) by a torsion spring. The snap-fit ​​part (51) is used to cooperate with the chuck body (3). One end of the pressing plate (5) is provided with a linkage part (52), which is used to cooperate with the limiting member (6).

2. The chuck butterfly valve according to claim 1, characterized in that: The valve body (1) includes a valve body, a valve plate and a valve stem. The valve plate is rotatably connected to the valve body. One end of the valve stem is connected to the valve plate and the other end is connected to the connecting plate (4).

3. A chuck butterfly valve according to claim 1, characterized in that: The limiting part (41) is provided with a plug rod, the connecting plate (4) is provided with a plug groove for the plug rod to be inserted, the plug rod is provided with a threaded groove, and the connecting plate (4) is provided with a threaded hole (43) communicating with the plug groove.

4. A chuck butterfly valve according to claim 3, characterized in that: The limiting member (6) includes a limiting rod (61) and a limiting spring (62). A limiting groove (411) is provided in the limiting part (41). The limiting rod (61) is slidably connected to the limiting groove (411) through the limiting spring (62). A rotation limiting groove (521) is provided on the linkage part (52) for the limiting rod (61) to be inserted.

5. A chuck butterfly valve according to claim 4, characterized in that: One end of the limiting rod (61) is provided with a limiting head, and the lower end face of the limiting head is set with an incline.

6. A chuck butterfly valve according to claim 3, characterized in that: The limit switch (7) includes a limit button (71), a linkage spring and a linkage component (72). The limit part (41) is provided with a linkage groove. The limit button (71) is slidably connected to the linkage groove through the linkage spring. The limit button (71) is linked with the limit rod (61) through the linkage component (72).

7. A chuck butterfly valve according to claim 6, characterized in that: The linkage component (72) includes a linkage gear. The limit button (71) and the limit rod (61) are both provided with toothed structures that mesh with the linkage gear. The limit button (71) and the limit rod (61) are respectively meshed on both sides of the linkage gear.

8. A chuck butterfly valve according to any one of claims 3-7, characterized in that: A cover (8) is detachably installed on the limiting part (41).

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