Hoop type high-sealing butterfly valve

Abstract

The utility model discloses a hoop type high-sealing butterfly valve, which relates to the technical field of valves and comprises a valve body, a through pipe, a connecting pipe, an annular groove and a hoop component, and a sealing ring is attached between the through pipe and the connecting pipe. The hoop assembly comprises two groups of semi-circular ring plates which are oppositely attached to each other; the device further comprises a plurality of sets of pressing pieces and pressing openings allowing the pressing pieces to move in a threaded mode, and the pressing openings penetrate into the semicircular grooves from the outside of the semicircular plate and are embedded into the through pipe and the connecting pipe to be used for improving the attaching stability of the through pipe and the connecting pipe. The utility model has the advantages that through the pressing openings which are arranged outside the semicircular plates, penetrate into the semicircular grooves and are embedded into the through pipe and the connecting pipe, the pressing pieces penetrate into the pressing openings and relatively press the through pipe and the connecting pipe, so that the clamping degree is improved, and the sealing performance is improved; the connecting stability of the through pipe and the connecting pipe with the semicircular plate is improved, and the fixing strength is improved; and meanwhile, a stabilizing assembly is arranged between the through pipe and the connecting pipe, so that the connecting stability between the through pipe and the connecting pipe is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and more specifically to a clamp-type high-sealing butterfly valve. Background Art

[0002] The clamp butterfly valve is a type of valve, which is mainly used to control the flow of fluid in the pipeline system. It combines the characteristics of butterfly valve and clamp connection, and has the advantages of simple structure, easy installation and good sealing.

[0003] The existing clamp butterfly valve {such as announcement number: CN203023513U, a groove fire butterfly valve}, wherein: "the valve body and the pipeline are both provided with grooves matching the clamp, and the edges at both ends of the clamp are respectively embedded in the groove of the valve body and the groove of the pipeline", that is, the clamp ring is directly clamped into the groove to stabilize and clamp the valve body and the pipeline;

[0004] However, when the valve body and the groove on the pipeline are connected only by the hoop of the clamp, the clamping effect of the valve body and the pipeline is not good and the sealing is insufficient due to the limited width range of the hoop. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a clamp type high sealing butterfly valve.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] The utility model provides a clamp type high sealing butterfly valve, comprising a valve body, through pipes on opposite sides of the valve body, a connecting pipe with one pipe end being fitted with the end of the through pipe, an annular groove provided on the through pipe and the connecting pipe, and a clamp assembly for tightly and stably fitting the through pipe and the connecting pipe, and a sealing ring is fitted between the through pipe and the connecting pipe;

[0008] The clamp assembly includes two sets of relatively fitted semicircular ring plates, wherein the semicircular ring plates are provided with semicircular grooves for fitting the outer peripheries of the through pipe and the connecting pipe respectively between the annular grooves on the through pipe and the connecting pipe, and the semicircular ring plates move outside the annular grooves;

[0009] It also includes several groups of clamping parts and clamping openings for the clamping parts to move through the threads. The clamping openings are inserted into the semicircular grooves outside the semicircular ring plates and embedded in the through pipes and the connecting pipes to improve the stability of the fitting between the through pipes and the connecting pipes.

[0010] As a preferred technical solution of the utility model, a cushion layer is provided in the annular groove and is fitted with the semicircular ring plate.

[0011] As a preferred technical solution of the present utility model, the pressing member is a screw.

[0012] As a preferred technical solution of the utility model, the clamp assembly also includes solid blocks fixed on the two groups of semicircular ring plates respectively, screws that penetrate the solid blocks on the two groups of semicircular ring plates at the same time, and screw rings threadedly connected to the screws, and the screws and the screw rings are respectively fitted with the solid blocks.

[0013] As a preferred technical solution of the utility model, the utility model also includes a stabilizing component arranged between the through pipe and the connecting pipe to increase the stability of the connection between them.

[0014] As a preferred technical solution of the utility model, the stabilizing component includes an insert ring and an annular groove for inserting the insert ring into a movable manner. When the insert ring is fixed to one of the through pipe or the connecting pipe, the annular groove is arranged on the other one. A tightening layer is fitted in the annular groove and fits with the insert ring. The insert ring and the annular groove are both arranged outside the tube cavity of the through pipe and the connecting pipe.

[0015] The beneficial effects of the utility model are as follows:

[0016] By setting a compression opening 8 outside the semicircular ring plate 61 and penetrating into the semicircular groove and embedded in the through pipe 2 and the connecting pipe 3, a compression piece 7 is used to penetrate the compression opening 8 and relatively compress the through pipe 2 and the connecting pipe 3, thereby improving the clamping degree to improve the sealing performance; and increasing the stability of the connection between the through pipe 2 and the connecting pipe 3 and the semicircular ring plate 61, and improving the fixing strength;

[0017] At the same time, a stabilizing component 5 is provided between the through pipe 2 and the connecting pipe 3 to further increase the connection stability between the through pipe 2 and the connecting pipe 3. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure numerals: valve body-1, through pipe-2, connecting pipe-3, annular groove-4, stabilizing assembly-5, clamp assembly-6, clamping piece-7, clamping port-8, positioning assembly-9, plug ring-51, annular groove-52, semicircular ring plate-61, solid block-62, screw-63, screw ring-64. DETAILED DESCRIPTION Embodiment 1:

[0020] like Figure 1 As shown, this embodiment proposes: a clamp-type high-sealing butterfly valve, comprising a valve body 1, and through pipes 2 on opposite sides of the valve body 1 (the through pipes 2 are symmetrically arranged at the left and right ends of the valve body 1);

[0021] A connecting pipe 3 whose one pipe end is fitted with the pipe end of the through pipe 2 (as shown in the figure, the right pipe end of the through pipe 2 at the right end of the valve body 1 is fitted with the left pipe end of the connecting pipe 3, and the left pipe end of the through pipe 2 at the left end of the valve body 1 is fitted with the right pipe end of the connecting pipe 3);

[0022] A sealing ring (made of rubber, etc.) is attached between the through pipe 2 and the connecting pipe 3 to improve the sealing performance during attachment;

[0023] Annular grooves 4 are provided on the through pipe 2 and the connecting pipe 3 (as shown in the figure, a group of annular grooves 4 are respectively provided in an annular manner around the outer periphery of the through pipe 2 and the connecting pipe 3);

[0024] and a clamp assembly 6 for stabilizing the through pipe 2 and the connecting pipe 3, which is used to stabilize the position of the through pipe 2 and the connecting pipe 3 in a stabilizing state;

[0025] In order to implement the above-mentioned clamp assembly 6, it is proposed that Figure 1 As shown, the specific structure and composition of the clamp assembly 6 can be: the clamp assembly 6 includes two sets of relatively fitted semicircular ring plates 61 (as shown in the figure, two sets of relatively fitted semicircular ring plates 61 are symmetrically arranged up and down);

[0026] The semicircular ring plate 61 is provided with a semicircular groove (such as Figure 1 As shown, the semicircular grooves provided in the semicircular ring plate 61 cover the through pipe 2 and the connecting pipe 3 between the annular grooves 4 on the through pipe 2 and the connecting pipe 3, respectively, so as to clamp the through pipe 2 and the connecting pipe 3), (partial periphery of the through pipe 2 and the connecting pipe 3, such as Figure 1 As shown, it is: an annular plate between two annular grooves 4);

[0027] The semicircular ring plate 61 moves outside the ring groove 4. When the semicircular ring plate 61 covers the outer part of the through pipe 2 and the connecting pipe 3, it is placed in the ring groove 4 for movement.

[0028] The annular groove 4 is provided with a cushion layer and is fitted with the semicircular ring plate 61 (the cushion layer is made of rubber, etc.), which is used to provide flexible compression when the semicircular ring plate 61 is placed in the annular groove 4 to improve the stability of the fit;

[0029] It also includes a plurality of groups of clamping members 7 and clamping openings 8 for threaded movement of the clamping members 7. The clamping openings 8 are inserted into the semicircular grooves outside the semicircular ring plate 61 and embedded in the through pipe 2 and the connecting pipe 3 to improve the stability of the fitting between the through pipe 2 and the connecting pipe 3.

[0030] According to the above: Figure 1As shown, the left and right sides of the semicircular ring plate 61 are provided with a pressing piece 7 and a pressing opening 8. The pressing piece 7 passes through the pressing opening 8 and is threadedly rotated with the semicircular ring plate 61 until it enters the pressing opening 8 of the through pipe 2 or the connecting pipe 3, and the through pipe 2 and the connecting pipe 3 are pressed on the left and right. The pressing piece 7 is inserted into the pressing opening 8 and the through pipe 2 and the connecting pipe 3 are relatively pressed, so as to improve the clamping degree to improve the sealing performance; and the stability of the connection between the through pipe 2 and the connecting pipe 3 and the semicircular ring plate 61 is increased, and the fixing strength is improved;

[0031] like Figure 1 As shown, the pressing member 7 is a screw or the like;

[0032] The clamp assembly 6 also includes a fixing block 62 (such as Figure 1 As shown, a group of fixing blocks 62 are fixed on the upper and lower groups of semicircular ring plates 61 respectively, and the semicircular ring plates 61 and the fixing blocks 62 can be connected by welding, integral molding, etc.);

[0033] The screws 63 that penetrate the two sets of solid blocks 62 on the semicircular ring plates 61 at the same time (as shown in the figure, the screws 63 penetrate the two sets of solid blocks 62 from bottom to top at the same time, and can be threaded, etc., so as to connect them);

[0034] and a screw ring 64 threadedly connected to the screw 63, the screw 63 and the screw ring 64 are respectively fitted with the solid block 62 (as shown in the figure, the top of the screw 63 is exposed at the top of the two groups of solid blocks 62, and the exposed part is threadedly connected to the screw ring 64, so as to fix the position of the two groups of semicircular ring plates 61);

[0035] The screw member 63 can be a screw, and the screw ring 64 can be a nut. After being connected, they are attached to the solid block 62 for support and stability. Embodiment 2:

[0036] like Figure 1 As shown, the difference between it and the embodiment 1 is that it also includes a stabilizing component 5 arranged between the through pipe 2 and the connecting pipe 3 to increase the connection stability therebetween;

[0037] In order to implement the above-mentioned stabilizing component 5, it is proposed that Figure 1 As shown, the specific structure and composition of the stabilizing component 5 can be as follows: the stabilizing component 5 includes an insert ring 51 and a ring groove 52 for inserting the insert ring 51, and the insert ring 51 is positioned and inserted into the ring groove 52;

[0038] When the insert ring 51 is fixed to one of the through pipe 2 or the connecting pipe 3, the annular groove 52 is arranged on the other one, that is, after the insert ring 51 is connected to one of the through pipe 2 and the connecting pipe 3, the annular groove 52 connected thereto is arranged on the other one, so as to facilitate the fitting of the through pipe 2 and the connecting pipe 3, so as to facilitate the fitting and support of the pipe ends of the through pipe 2 and the connecting pipe 3;

[0039] A tightening layer is provided in the annular groove 52 and is in contact with the insert ring 51 (the tightening layer is made of rubber, etc.), providing flexible compression and improving stability and sealing performance;

[0040] The insert ring 51 and the annular groove 52 are both arranged outside the lumens of the through pipe 2 and the connecting pipe 3, that is, the through pipe 2 and the connecting pipe 3 both have lumens for passing liquid, and the insert ring 51 and the annular groove 52 are both arranged outside the lumens to surround the lumens, thereby providing stability of the connection.

[0041] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clamp-type high-sealing butterfly valve, comprising a valve body (1), a through pipe (2) on opposite sides of the valve body (1), a connecting pipe (3) with one end of the pipe being in contact with the end of the through pipe (2), an annular groove (4) provided on the through pipe (2) and the connecting pipe (3), and a clamp assembly (6) for tightly and stably connecting the through pipe (2) and the connecting pipe (3), wherein a sealing ring is in contact with the through pipe (2) and the connecting pipe (3); The clamp assembly (6) comprises two sets of semicircular ring plates (61) that fit relatively to each other. The semicircular ring plates (61) are provided with semicircular grooves that fit part of the periphery of the through pipe (2) and the connecting pipe (3) between the annular grooves (4) on the through pipe (2) and the connecting pipe (3). The semicircular ring plates (61) move outside the annular grooves (4). It is characterized in that It also includes a plurality of groups of clamping members (7) and clamping openings (8) for threaded movement of the clamping members (7), wherein the clamping openings (8) are inserted into the semicircular grooves outside the semicircular ring plate (61) and embedded in the through pipe (2) and the connecting pipe (3), so as to improve the stability of the fitting between the through pipe (2) and the connecting pipe (3).

2. A clamp-type high-sealing butterfly valve according to claim 1, characterized in that: A soft cushion layer is provided in the annular groove (4) and is fitted with the semicircular annular plate (61).

3. A clamp-type high-sealing butterfly valve according to claim 2, characterized in that: The pressing member (7) is a screw.

4. A clamp-type high-sealing butterfly valve according to claim 3, characterized in that: The clamp assembly (6) further comprises a fixing block (62) fixed to the two groups of semicircular ring plates (61), a screw member (63) passing through the fixing block (62) on the two groups of semicircular ring plates (61), and a screw ring (64) threadedly connected to the screw member (63), wherein the screw member (63) and the screw ring (64) are respectively fitted to the fixing block (62).

5. A clamp-type high-sealing butterfly valve according to claim 4, characterized in that: It also includes a stabilizing component (5) disposed between the through pipe (2) and the connecting pipe (3) to increase the stability of the connection therebetween.

6. A clamp-type high-sealing butterfly valve according to claim 5, characterized in that: The stabilizing component (5) comprises an insert ring (51) and an annular groove (52) for the insert ring to be inserted and moved. When the insert ring (51) is fixed to one of the through pipe (2) or the connecting pipe (3), the annular groove (52) is arranged on the other. A tightening layer is provided in the annular groove (52) and is in contact with the insert ring (51). The insert ring (51) and the annular groove (52) are both arranged outside the tube cavity of the through pipe (2) or the connecting pipe (3).

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