Improved sealing butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, and discloses an improved sealing butterfly valve which comprises a pipe body and a valve body, the valve body is installed on the inner wall of the pipe body, the valve body comprises a tooth groove piece, blocking pieces are arranged on the outer walls of the two sides, close to tooth grooves, of the tooth groove piece, a rotating rod is rotationally connected to the inner wall of the tooth groove piece, and a handle is installed on the outer wall of the top end of the rotating rod. A spring clamp is installed on the inner wall of the bottom of the grip and located in one tooth groove of the tooth groove piece. Through the arrangement of the tooth groove piece and the spring clamp, the grip drives the rotating rod to rotate in the positioning groove, the rotating rod drives the valve plate to rotate in the connecting pipe, and the flow speed of water flow is adjusted through the overlap ratio of the valve plate and the connecting pipe; the moving path of the spring clamp is limited through the two blocking pieces, and finally the hand is loosened to enable a torsion spring in the spring clamp to drive the spring clamp to reset downwards to be clamped in a tooth groove of the tooth groove piece.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve equipment, in particular to an improved sealing butterfly valve. Background Technique

[0002] A butterfly valve, also called a flap valve, is a simple structure control valve. A butterfly valve that can be used for the on-off control of a low-pressure pipeline medium refers to a valve in which the closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. [1] It mainly functions as a cut-off and throttling in the pipeline. The opening and closing member of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve opening and closing or adjustment.

[0003] The application number is CN202220650510.3, which discloses an improved butterfly valve, belonging to the technical field of butterfly valves. The improved butterfly valve includes a valve body, a butterfly plate, a valve shaft, and a control device. The control device is arranged on the upper side of the valve body. The valve shaft is rotatably connected in the valve body, and the valve shaft is connected to the control device. The circumferential surface of the valve shaft is fixedly connected with a butterfly plate; a valve seat is arranged at the side end of the butterfly plate, and the valve seat is used to seal the valve body. A set of connecting components is arranged between the butterfly plate and the valve seat, and the connecting components are used for the installation and disassembly of the valve seat; an installation ring is fixedly connected in the valve body, and a sealing gasket is arranged between the installation ring and the butterfly plate. By setting the connecting components, the valve seat can be quickly disassembled. After the valve seat is worn, it is convenient to quickly and conveniently disassemble and install the valve seat. By setting the elastic component to push the sealing gasket to further perform secondary sealing between the butterfly plate and the valve body, the sealing effect of the butterfly valve can be effectively guaranteed, and the practicability of the butterfly valve can be improved.

[0004] The improved butterfly valve disclosed in the above document has the following defects: When the improved butterfly valve performs the throttling work in the pipe, when the water flow deceleration requirements in the pipeline are different, the structure cuts off the water flow through the butterfly plate, and it is impossible to fix the butterfly plates with different turning directions, and it is impossible to control the water flow velocity according to the actual situation, reducing the practicability of the structure.

[0005] It can be seen that the existing butterfly valve does not have the function of adjusting the turning direction of the butterfly valve for convenient throttling, and it is necessary to improve the existing deficiencies to provide a function that can adjust the turning direction of the butterfly valve for convenient throttling. Content of the Utility Model

[0006] The purpose of the utility model is to provide an improved sealing butterfly valve to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to an improved sealing butterfly valve, which comprises a pipe body and a valve body. The valve body is installed on the inner wall of the pipe body. The valve body comprises a toothed groove sheet. On the outer walls of both sides of the toothed groove sheet close to the toothed groove, there are retaining sheets. On the inner wall of the toothed groove sheet, a rotating rod is rotatably connected. On the outer wall of the top end of the rotating rod, a grip is installed. On the inner wall of the bottom of the grip, a spring clip is installed. The spring clip is located in one of the toothed grooves of the toothed groove sheet. The purpose of such a setting is that during the use of the butterfly valve, water flows forward through the guiding pipe. The gap between the connecting pipe and the guiding pipe is filled by the sealing ring, and the water flows into the connecting pipe. Hold the grip and the spring clip by hand, squeeze the tails of the two inward, so that the spring clip is disengaged from the limit of the toothed groove of the toothed groove sheet, rotate the grip and the spring clip, the grip drives the rotating rod to rotate in the positioning groove, the rotating rod drives the valve plate to rotate in the connecting pipe, and the flow rate of the water is adjusted by the coincidence degree between the valve plate and the connecting pipe. When it is necessary to fix the rotation direction of the valve plate after adjustment, align the spring clip with the corresponding toothed groove of the toothed groove sheet, limit the moving path of the spring clip by the two retaining sheets, and finally release the hand so that the torsion spring in the spring clip drives the spring clip to reset downward and be stuck in the toothed groove of the toothed groove sheet. The water flows forward through the connecting pipe and flows out through the pipe orifice. The toothed groove sheet is installed at the top end of the connecting pipe through a screw, which is convenient for replacing the worn toothed groove sheet. The pipe orifice, the connecting pipe, the sealing ring and the guiding pipe are connected in series through screws and fixed together by nuts, which is convenient for disassembling each part for cleaning, and improves the flexibility of the butterfly valve.

[0009] Further, the pipe body comprises a connecting pipe. On the outer wall of the top of the connecting pipe, a positioning groove is opened, and the positioning groove extends to the inner wall of the bottom of the connecting pipe. The two ends of the rotating rod are respectively rotatably connected in the positioning grooves at the top and bottom of the connecting pipe. The purpose of such a setting is that during the use of the butterfly valve, the rotating rod drives the valve plate to rotate in the connecting pipe, and the flow rate of the water is adjusted by the coincidence degree between the valve plate and the connecting pipe.

[0010] Further, a valve plate is installed on the outer wall of the rotating rod, and the valve plate is attached to the connecting pipe. The purpose of such a setting is that during the use of the butterfly valve, the flow rate of the water is adjusted by the coincidence degree between the valve plate and the connecting pipe.

[0011] Further, a pipe orifice is arranged on one side of the connecting pipe. A plurality of screws are inserted into the inner walls around the pipe orifice. A sealing ring is arranged on the other side of the connecting pipe. The pipe orifice, the connecting pipe and the sealing ring are attached to each other. The purpose of such a setting is that during the use of the butterfly valve, water flows forward through the guiding pipe. The gap between the connecting pipe and the guiding pipe is filled by the sealing ring, and the water flows into the connecting pipe.

[0012] Furthermore, a guiding pipe is provided on one side of the sealing ring, and the sealing ring is in fit with the guiding pipe. One end of several of the screw rods penetrates through the pipe orifice, the connecting pipe, the sealing ring and the guiding pipe. The purpose of this setting is that during the use of this butterfly valve, water flows forward through the connecting pipe and out through the pipe orifice. The toothed groove piece is installed at the top of the connecting pipe through the screw rod, which facilitates the replacement of the worn toothed groove piece. The pipe orifice, the connecting pipe, the sealing ring and the guiding pipe are connected in series through the screw rod and fixed together by nuts, which facilitates the disassembly of each component for cleaning and improves the flexibility of this butterfly valve.

[0013] Furthermore, nuts are threadedly connected to the outer walls of the bottoms of several of the screw rods, and the nuts are on one outer wall of the guiding pipe. The purpose of this setting is that during the use of this butterfly valve, water flows forward through the connecting pipe and out through the pipe orifice. The toothed groove piece is installed at the top of the connecting pipe through the screw rod, which facilitates the replacement of the worn toothed groove piece. The pipe orifice, the connecting pipe, the sealing ring and the guiding pipe are connected in series through the screw rod and fixed together by nuts, which facilitates the disassembly of each component for cleaning and improves the flexibility of this butterfly valve.

[0014] The utility model has the following beneficial effects:

[0015] (1) Through the settings of the toothed groove piece and the spring clip in the utility model, the tails of the two are squeezed inward, so that the spring clip is disengaged from the limit of the toothed groove of the toothed groove piece. The grip and the spring clip are rotated. The grip drives the rotating rod to rotate in the positioning groove, and the valve piece is driven to rotate in the connecting pipe through the rotating rod. The flow rate of water is adjusted through the coincidence degree between the valve piece and the connecting pipe. When it is necessary to fix the rotation direction of the valve piece after adjustment, the spring clip is aligned with the corresponding toothed groove of the toothed groove piece, and the moving path of the spring clip is limited by two retaining pieces. Finally, when the hand is released, the torsion spring in the spring clip drives the spring clip to reset downward and be stuck in the toothed groove of the toothed groove piece.

[0016] (2) Through the settings of the nuts and the screw rods in the utility model, the toothed groove piece is installed at the top of the connecting pipe through the screw rod, which facilitates the replacement of the worn toothed groove piece. The pipe orifice, the connecting pipe, the sealing ring and the guiding pipe are connected in series through the screw rod and fixed together by nuts, which facilitates the disassembly of each component for cleaning and improves the flexibility of this butterfly valve.

[0017] Certainly, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the pipe body part of the present utility model;

[0021] Figure 3 This is a schematic diagram of the split structure of the pipe body part of the present utility model;

[0022] Figure 4 This is a schematic diagram of the split structure of the valve body of the present utility model;

[0023] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0024] In the figure: 1. Pipe body; 100. Screw; 101. Pipe orifice; 102. Connecting pipe; 103. Sealing ring; 104. Positioning groove; 105. Guide pipe; 106. Nut; 2. Valve body; 201. Tooth groove piece; 202. Retaining piece; 203. Rotating rod; 204. Valve piece; 205. Handle; 206. Spring clip. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 - Figure 4As shown in the figure, the utility model relates to an improved sealing butterfly valve, which comprises a pipe body 1 and a valve body 2. The valve body 2 is installed on the inner wall of the pipe body 1. The valve body 2 includes a toothed groove piece 201. On both outer walls of the toothed groove piece 201 close to the toothed groove, there are provided retaining pieces 202. A rotating rod 203 is rotatably connected to the inner wall of the toothed groove piece 201. On the outer wall of the top end of the rotating rod 203, there is installed a handle 205. On the bottom inner wall of the handle 205, there is installed a spring clip 206, and the spring clip 206 is located in one of the toothed grooves of the toothed groove piece 201. The purpose of such a setting is that during the use of the butterfly valve, water flows forward through the guiding pipe 105. The gap between the connecting pipe 102 and the guiding pipe 105 is filled by the sealing ring 103, and the water flows into the connecting pipe 102. Hold the handle 205 and the spring clip 206 by hand, and squeeze the tails of the two inward, so that the spring clip 206 is disengaged from the limit of the toothed groove of the toothed groove piece 201. Rotate the handle 205 and the spring clip 206. The handle 205 drives the rotating rod 203 to rotate in the positioning groove 104. The rotating rod 203 drives the valve plate 204 to rotate in the connecting pipe 102. The flow rate of water is adjusted by the coincidence degree between the valve plate 204 and the connecting pipe 102. When it is necessary to fix the rotation direction of the valve plate 204 after adjustment, align the spring clip 206 with the corresponding toothed groove of the toothed groove piece 201, and limit the moving path of the spring clip 206 by the two retaining pieces 202. Finally, release the hand so that the torsion spring in the spring clip 206 drives the spring clip 206 to reset downward and be stuck in the toothed groove of the toothed groove piece 201. The water flows forward through the connecting pipe 102 and flows out through the pipe orifice 101. The toothed groove piece 201 is installed at the top end of the connecting pipe 102 through a screw 100, which is convenient for replacing the worn toothed groove piece 201. The pipe orifice 101, the connecting pipe 102, the sealing ring 103 and the guiding pipe 105 are connected in series through a screw 100 and fixed together by a nut 106, which is convenient for disassembling each part for cleaning, and improves the flexibility of the butterfly valve.

[0027] The pipe body 1 includes a connecting pipe 102. On the outer wall of the top of the connecting pipe 102, there is provided a positioning groove 104, and the positioning groove 104 extends to the bottom inner wall of the connecting pipe 102. Both ends of the rotating rod 203 are respectively rotatably connected in the positioning grooves 104 at the top and bottom of the connecting pipe 102. The purpose of such a setting is that during the use of the butterfly valve, the rotating rod 203 drives the valve plate 204 to rotate in the connecting pipe 102, and the flow rate of water is adjusted by the coincidence degree between the valve plate 204 and the connecting pipe 102.

[0028] On the outer wall of the rotating rod 203, there is installed a valve plate 204, and the valve plate 204 is in fit with the connecting pipe 102. The purpose of such a setting is that during the use of the butterfly valve, the flow rate of water is adjusted by the coincidence degree between the valve plate 204 and the connecting pipe 102.

[0029] One side of the connecting pipe 102 is provided with a pipe orifice 101. A plurality of screw rods 100 are inserted on the inner walls around the pipe orifice 101. The other side of the connecting pipe 102 is provided with a sealing ring 103. The pipe orifice 101, the connecting pipe 102 and the sealing ring 103 are in fit. The purpose of such setting is that during the use of the butterfly valve, water flows forward through the guiding pipe 105, the gap between the connecting pipe 102 and the guiding pipe 105 is filled by the sealing ring 103, and the water flows into the connecting pipe 102.

[0030] One side of the sealing ring 103 is provided with a guiding pipe 105. The sealing ring 103 and the guiding pipe 105 are in fit. One ends of a plurality of screw rods 100 penetrate through the pipe orifice 101, the connecting pipe 102, the sealing ring 103 and the guiding pipe 105. The purpose of such setting is that during the use of the butterfly valve, water flows forward through the connecting pipe 102 and flows out through the pipe orifice 101. The tooth groove piece 201 is installed at the top end of the connecting pipe 102 through the screw rod 100, which is convenient for replacing the worn tooth groove piece 201. The pipe orifice 101, the connecting pipe 102, the sealing ring 103 and the guiding pipe 105 are connected in series through the screw rod 100 and fixed together through a nut 106, which is convenient for disassembling each component for cleaning and improves the flexibility of the butterfly valve.

[0031] Threads of a plurality of screw rods 100 are connected with nuts 106 at the outer walls of the bottom ends. The nuts 106 are located at the outer wall of one side of the guiding pipe 105. The purpose of such setting is that during the use of the butterfly valve, water flows forward through the connecting pipe 102 and flows out through the pipe orifice 101. The tooth groove piece 201 is installed at the top end of the connecting pipe 102 through the screw rod 100, which is convenient for replacing the worn tooth groove piece 201. The pipe orifice 101, the connecting pipe 102, the sealing ring 103 and the guiding pipe 105 are connected in series through the screw rod 100 and fixed together through a nut 106, which is convenient for disassembling each component for cleaning and improves the flexibility of the butterfly valve.

[0032] During use, in the process of using this butterfly valve, water flows forward through the guiding pipe 105. The gap between the connecting pipe 102 and the guiding pipe 105 is filled by the sealing ring 103, and the water flows into the connecting pipe 102. Hold the grip 205 and the spring clip 206, and squeeze the tails of the two inward, so that the spring clip 206 is disengaged from the limit of the tooth groove of the tooth groove piece 201. Rotate the grip 205 and the spring clip 206. The grip 205 drives the rotating rod 203 to rotate in the positioning groove 104. The rotating rod 203 drives the valve piece 204 to rotate in the connecting pipe 102. The flow rate of the water is adjusted by the coincidence degree between the valve piece 204 and the connecting pipe 102. When it is necessary to fix the rotation direction of the valve piece 204 after adjustment, align the spring clip 206 with the corresponding tooth groove of the tooth groove piece 201, and limit the moving path of the spring clip 206 through the two retaining pieces 202. Finally, release the hand so that the torsion spring in the spring clip 206 drives the spring clip 206 to reset downward and be stuck in the tooth groove of the tooth groove piece 201. The water flows forward through the connecting pipe 102 and flows out through the pipe orifice 101. The tooth groove piece 201 is installed at the top of the connecting pipe 102 through the screw 100, which is convenient for replacing the worn tooth groove piece 201. The pipe orifice 101, the connecting pipe 102, the sealing ring 103 and the guiding pipe 105 are connected in series through the screw 100 and fixed together by the nut 106, which is convenient for disassembling each part for cleaning, and improves the flexibility of this butterfly valve.

[0033] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An improved sealed butterfly valve, comprising a pipe body (1) and a valve body (2), characterized in that: The valve body (2) is installed on the inner wall of the pipe body (1). The valve body (2) includes a toothed groove piece (201). On the outer walls of both sides of the toothed groove piece (201) close to the toothed groove, there are retaining pieces (202). A rotating rod (203) is rotatably connected to the inner wall of the toothed groove piece (201). On the outer wall of the top end of the rotating rod (203), a grip (205) is installed. On the bottom inner wall of the grip (205), a spring clip (206) is installed. The spring clip (206) is located in one of the toothed grooves of the toothed groove piece (201).

2. An improved sealed butterfly valve according to claim 1, characterized in that: The pipe body (1) includes a connecting pipe (102). On the outer wall of the top of the connecting pipe (102), a positioning groove (104) is formed. The positioning groove (104) extends to the bottom inner wall of the connecting pipe (102). The two ends of the rotating rod (203) are respectively rotatably connected in the positioning grooves (104) at the top and bottom of the connecting pipe (102).

3. An improved sealed butterfly valve according to claim 2, characterized in that: A valve piece (204) is installed on the outer wall of the rotating rod (203). The valve piece (204) is in contact with the connecting pipe (102).

4. An improved sealed butterfly valve according to claim 2, characterized in that: On one side of the connecting pipe (102), there is a pipe orifice (101). A number of screw rods (100) are inserted into the inner walls around the pipe orifice (101). On the other side of the connecting pipe (102), there is a sealing ring (103). The pipe orifice (101), the connecting pipe (102) and the sealing ring (103) are in contact with each other.

5. An improved sealed butterfly valve according to claim 4, characterized in that: On one side of the sealing ring (103), there is a guiding pipe (105). The sealing ring (103) is in contact with the guiding pipe (105). One end of a number of the screw rods (100) penetrates through the pipe orifice (101), the connecting pipe (102), the sealing ring (103) and the guiding pipe (105).

6. An improved sealed butterfly valve according to claim 5, characterized in that: On the outer wall of the bottom ends of a number of the screw rods (100), there are nuts (106) threadedly connected. The nuts (106) are located on the outer wall of one side of the guiding pipe (105).

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