Triple-eccentric hard sealing butterfly valve butterfly plate convenient to disassemble

Abstract

The utility model relates to a three-eccentric hard sealing butterfly valve butterfly plate convenient to disassemble, which belongs to the technical field of butterfly valves and comprises a transmission part containing box body, a communicating pipe is fixed on the lower surface of the transmission part containing box body, a valve body is attached to the bottom of the communicating pipe, and a fixing mechanism is arranged between the communicating pipe and the valve body. According to the three-eccentric hard sealing butterfly valve butterfly plate convenient to disassemble, when the butterfly plate body in the valve body needs to be replaced, a threaded rod can be rotated to drive an adjusting sliding block to move, then a first limiting block moves to be separated from one side of an inner cavity of a first limiting hole, and at the moment, a communicating pipe can be separated from the valve body; by means of the structure, when an operator disassembles the communicating pipe and the valve body so as to replace a butterfly plate in the valve body, the communicating pipe and the valve body can be separated more conveniently and rapidly, no extra tool is needed, complexity during operation is effectively reduced, the situations that parts fall off and are deformed and damaged are effectively avoided, and the working efficiency is improved. And the device is further protected.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, and particularly relates to a butterfly plate of a three-eccentric hard-sealed butterfly valve which is convenient to disassemble. Background Art

[0002] The three-eccentric hard-sealed butterfly valve is a special type of valve, mainly used for the regulation and control of fluids (such as gases, liquids or steam). It belongs to a kind of butterfly valve. A butterfly valve is a valve that uses a circular butterfly plate to open and close around a fixed circular or elliptical valve seat. During long-term use, the butterfly plate in the butterfly valve will corrode and wear, so it is necessary to replace the butterfly plate in time.

[0003] For example, Chinese Patent (Publication No.: CN215410244U) discloses a three-eccentric bidirectional hard-sealed butterfly valve, which relates to the technical field of butterfly valves, including: a transmission part accommodating box, an upper connecting pipe, a valve body, a valve rod, and a butterfly plate. The upper connecting pipe is fixedly connected to the transmission part accommodating box, the upper connecting pipe is communicated with the transmission part accommodating box, the upper connecting pipe is communicated with the valve body, a butterfly plate is arranged in the valve body, and the valve rod is fixedly connected to the butterfly plate. Through the above structural arrangement, the butterfly valve can be disassembled more easily, and thus it is more convenient to replace the butterfly plate.

[0004] The above technical solution still has the following defects. Although the three-eccentric bidirectional hard-sealed butterfly valve can be disassembled more easily and thus it is more convenient to replace the butterfly plate through the above structural arrangement, although the connection between the upper connecting pipe and the valve body can ensure the connection stability through the combination of bolts and nuts, this connection method also requires corresponding tools during disassembly, increasing the complexity of the operation. Every time the butterfly plate is disassembled and replaced, it is necessary to first loosen the nuts and then remove the bolts. This process not only takes time but also is likely to cause damage to the components, such as thread damage or component deformation, thus increasing the complexity and cost of subsequent maintenance. Based on this, a butterfly plate of a three-eccentric hard-sealed butterfly valve which is convenient to disassemble is proposed to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a butterfly plate of a three-eccentric hard-sealed butterfly valve which is convenient to disassemble, having the advantages of being easy to disassemble and assemble, etc., and solving the problem that every time the upper connecting pipe and the valve body are disassembled and the butterfly plate is replaced, it is necessary to loosen the nuts and remove the bolts, and this process not only takes time but also is likely to cause damage to the components.

[0006] To achieve the above object, the utility model provides the following technical solution: a butterfly plate of a three-eccentric hard-sealed butterfly valve which is convenient to disassemble, including a transmission part accommodating box body, a connecting pipe is fixed to the lower surface of the transmission part accommodating box body, the bottom of the connecting pipe is attached to a valve body, and a fixing mechanism is arranged between the connecting pipe and the valve body;

[0007] The fixing mechanism includes a first connection block fixed to the outer surface of the communication pipe. An adjustment component is provided on the first connection block, and a fixing component is provided on the adjustment component. The fixing mechanism further includes a reinforcement component;

[0008] The adjustment component includes adjustment grooves opened on the left and right sides of the upper surface of the first connection block. The inner bottom wall of the adjustment groove is rotatably connected through a bearing to a threaded rod with one end penetrating to the outside of the adjustment groove. A turning handle is fixed to the top of the threaded rod, and an adjustment slider is threadedly connected to the outer surface of the threaded rod.

[0009] Furthermore, the cross-section of the adjustment groove is convex, and the adjustment groove is rotatably connected to the threaded rod.

[0010] Furthermore, the fixing component includes guiding sliding grooves respectively communicated with the opposite sides of the inner cavities of the two adjustment grooves and opened on the first connection block. A guiding slider is slidably connected to the inner wall of the guiding sliding groove. On the opposite sides of the two guiding sliders, a first limiting block penetrating to the outside of the first connection block is fixed. A moving block is fixed to the top of the first limiting block, and a spring is sleeved on the outer surface of the guiding slider.

[0011] Furthermore, the cross-sections of the guiding sliding groove and the guiding slider are both T-shaped, and the spring is located between the adjustment groove and the first limiting block.

[0012] Furthermore, the adjustment slider is in sliding fit with the moving block, and the cross-sections of the adjustment slider and the moving block are both trapezoidal.

[0013] Furthermore, the bottom of the adjustment groove is communicated with a moving hole opened on the first connection block, and the moving hole is in sliding connection with the first limiting block.

[0014] Furthermore, the reinforcement component includes a second connection block fixed to the outer surface of the valve body. First limiting holes for sliding connection with the first limiting block are opened on the left and right sides of the second connection block. The fixing component further includes first limiting grooves opened on the left and right sides of the upper surface of the moving block. A second limiting block with an L-shaped cross-section is slidably connected to the inner wall of the first limiting groove.

[0015] Furthermore, the second limiting block is threadedly connected to the outer surface of the threaded rod. The bottom of the adjustment groove is communicated with an adjustment hole opened on the first connection block, and the second limiting block is in sliding connection with the adjustment hole.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] The butterfly plate of the conveniently detachable triple-eccentric hard-sealed butterfly valve can drive the adjusting slider to move by rotating the threaded rod when the butterfly plate inside the valve body needs to be replaced. Furthermore, the moving block drives the first limit block to move and separate from one side of the inner cavity of the first limit hole. At this time, the connecting pipe can be separated from the valve body. At the same time, the second limit block moves out along the adjusting hole to the inside of the first limit groove, which facilitates the operator to separate the connecting pipe from the valve body more conveniently and quickly when disassembling the connecting pipe and the valve body to replace the butterfly plate inside the valve body. No additional tools are required, effectively reducing the complexity during operation and effectively avoiding the situation of parts falling and component deformation and damage, further protecting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a front structural diagram of the fixing mechanism of the present invention;

[0020] Figure 3 For the present invention Figure 2 is an enlarged structural diagram of part A in the present invention;

[0021] Figure 4 is a connection structural diagram of the first limit block and the moving block of the present invention.

[0022] In the figure: 1 body of the drive member accommodating box, 2 connecting pipe, 3 fixing mechanism, 301 first connecting block, 302 adjusting groove, 303 threaded rod, 304 turning handle, 305 adjusting slider, 306 guiding chute, 307 guiding slider, 308 first limit block, 309 moving block, 310 first limit hole, 311 first limit groove, 312 second limit block, 313 spring, 314 second connecting block, 4 valve body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 , a butterfly plate of a conveniently detachable triple-eccentric hard-sealed butterfly valve in this embodiment includes a body 1 of the drive member accommodating box. A connecting pipe 2 is fixed to the lower surface of the body 1 of the drive member accommodating box. A valve body 4 is attached to the bottom of the connecting pipe 2. A fixing mechanism 3 is provided between the connecting pipe 2 and the valve body 4.

[0025] It should be noted that when it is necessary to replace the butterfly plate inside the valve body 4, the connecting pipe 2 and the valve body 4 can be disassembled more conveniently and quickly through the fixing mechanism 3, which is convenient for the subsequent replacement process of the operator, effectively reducing the working intensity of the operator and saving time and effort.

[0026] Please refer to Figures 1-4 , for the convenience of the operator to replace the butterfly plate more quickly and conveniently in the subsequent process, the fixing mechanism 3 in this embodiment includes a first connection block 301 fixed on the outer surface of the connecting pipe 2. An adjusting component is provided on the first connection block 301, and a fixing component is provided on the adjusting component. The fixing mechanism 3 further includes a reinforcement component. The adjusting component includes adjusting grooves 302 opened on the left and right sides of the upper surface of the first connection block 301. The cross-section of the adjusting groove 302 is convex. The adjusting groove 302 is rotatably connected to a threaded rod 303. The inner bottom wall of the adjusting groove 302 is rotatably connected to a threaded rod 303 with one end penetrating to the outside of the adjusting groove 302 through a bearing. A rotating handle 304 is fixed on the top of the threaded rod 303. An adjusting slider 305 is threadedly connected to the outer surface of the threaded rod 303. By rotating the threaded rod 303, the adjusting slider 305 is driven to move, so that the adjusting slider 305 can gradually move downward to squeeze the moving block 309, facilitating the operation of the adjusting component.

[0027] Among them, the fixing component includes guiding sliding grooves 306 that are respectively communicated with the opposite sides of the inner cavities of the two adjusting grooves 302 and are opened on the first connection block 301. A guiding slider 307 is slidably connected to the inner wall of the guiding sliding groove 306. On the opposite sides of the two guiding sliders 307, first limiting blocks 308 penetrating to the outside of the first connection block 301 are fixed. The cross-sections of the guiding sliding groove 306 and the guiding slider 307 are both T-shaped. A spring 313 is located between the adjusting groove 302 and the first limiting block 308. The bottom of the adjusting groove 302 is communicated with a moving hole opened on the first connection block 301. The moving hole is slidably connected to the first limiting block 308, facilitating the guiding slider 307 to always move inside the guiding sliding groove 306. A moving block 309 is fixed on the top of the first limiting block 308. The adjusting slider 305 is in sliding fit with the moving block 309. The cross-sections of the adjusting slider 305 and the moving block 309 are both trapezoidal, facilitating the adjusting slider 305 to drive the moving block 309 to move when moving. A spring 313 is sleeved on the outer surface of the guiding slider 307. By driving the first limiting block 308 to move through the moving block 309, the first limiting block 308 can drive the guiding slider 307 to move along the guiding sliding groove 306, providing guiding support for the movement of the first limiting block 308.

[0028] Meanwhile, the reinforcement component includes a second connection block 314 fixed to the outer surface of the valve body 4. First limit holes 310 for slidably connecting with the first limit block 308 are formed on both the left and right sides of the second connection block 314, facilitating the first limit block 308 to fit with the first limit holes 310 when forced to move. The fixing component further includes first limit grooves 311 formed on both the left and right sides of the upper surface of the moving block 309. Second limit blocks 312 with an L-shaped cross-section are slidably connected to the inner walls of the first limit grooves 311. The second limit blocks 312 are threadedly connected to the outer surface of the threaded rod 303. An adjustment hole formed in the first connection block 301 communicates with the bottom of the adjustment groove 302. The second limit blocks 312 are slidably connected to the adjustment holes. When the threaded rod 303 rotates, the second limit blocks 312 are driven to move along the adjustment holes into the interior of the first limit grooves 311, which can further strengthen the fixation between the first connection block 301 and the second connection block 314.

[0029] It should be noted that when it is necessary to replace the butterfly plate in the valve body 4, the fixing mechanism 3 facilitates the operator to disassemble the connecting pipe 2 and the valve body 4 more conveniently and quickly, and then can replace the subsequent butterfly plate more quickly, improving the work efficiency.

[0030] The working principle of the above embodiment is as follows:

[0031] After the butterfly plate inside the valve body 4 is replaced, the connecting pipe 2 is fitted and fixed to the valve body 4. At this time, the first limit block 308 moves into the inside of the first limit hole 310. Then, the threaded rod 303 can be rotated by turning the handle 304. Next, the rotation of the threaded rod 303 drives the adjustment slider 305 to move. Thus, the adjustment slider 305 can be gradually moved downward to squeeze the moving block 309. Further, the moving block 309 drives the first limit block 308 to move until the opposite sides of the two first limit blocks 308 are respectively in contact with the opposite sides of the inner cavities of the two first limit holes 310. At this time, the positions of the first connecting block 301 and the second connecting block 314 can be fixed. Further, the connecting pipe 2 and the valve body 4 can be fixed. At the same time, during the force-driven movement of the first limit block 308, in cooperation with the elastic force of the spring 313, the force received by itself can be buffered to a certain extent, further protecting the device. At the same time, when the threaded rod 303 rotates, it can drive the second limit block 312 located on its outer surface to move along the adjustment hole. When the first limit block 308 is in contact with the moving block 309, a part of the second limit block 312 can also move into the inside of the first limit groove 311, further strengthening the fixation between the first connecting block 301 and the second connecting block 314, facilitating the more stable fixation between the connecting pipe 2 and the valve body 4. By operating according to the above principle, when the operator disassembles the connecting pipe 2 and the valve body 4 and replaces the butterfly plate inside the valve body 4, it is not necessary to use corresponding tools to first loosen the nut and then remove the bolt, effectively reducing the complexity during operation, making the operation more convenient, also avoiding the problem of component dropping, improving the work efficiency, and indirectly avoiding the deformation and damage of components.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A conveniently disassembled three-eccentric hard-seal butterfly valve disc, comprising a transmission component accommodating box body (1), characterized in that: A connecting pipe (2) is fixed to the lower surface of the transmission component accommodating box body (1), a valve body (4) is attached to the bottom of the connecting pipe (2), and a fixing mechanism (3) is provided between the connecting pipe (2) and the valve body (4); The fixing mechanism (3) comprises a first connecting block (301) fixed to the outer surface of the connecting pipe (2), the first connecting block (301) is provided with an adjusting component, the adjusting component is provided with a fixing component, and the fixing mechanism (3) also comprises a reinforcing component; The adjustment assembly comprises adjustment grooves (302) provided on the left and right sides of the upper surface of the first connection block (301); the inner bottom wall of the adjustment groove (302) is rotatably connected to a threaded rod (303) having one end extending through the outside of the adjustment groove (302) via a bearing; a rotating handle (304) is fixed to the top of the threaded rod (303); and an adjustment slider (305) is threadedly connected to the outer surface of the threaded rod (303).

2. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 1 is characterized by: The cross section of the adjusting groove (302) is convex, and the adjusting groove (302) and the threaded rod (303) are rotatably connected.

3. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 1 is characterized by: The fixing assembly comprises a guide slot (306) which is connected to the opposite side of the inner cavity of the two adjustment slots (302) and is provided on the first connecting block (301); the inner wall of the guide slot (306) is slidably connected with a guide slider (307); the first limiting blocks (308) which penetrate the outside of the first connecting block (301) are fixed on the opposite sides of the two guiding sliders (307); a moving block (309) is fixed on the top of the first limiting block (308); and a spring (313) is sleeved on the outer surface of the guiding slider (307).

4. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 3 is characterized by: The cross-sections of the guide sliding groove (306) and the guide sliding block (307) are both T-shaped, and the spring (313) is located between the adjustment groove (302) and the first limiting block (308).

5. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 3 is characterized by: The adjusting slider (305) and the moving block (309) slide in contact with each other, and the cross-sections of the adjusting slider (305) and the moving block (309) are both trapezoidal.

6. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 3 is characterized by: The bottom of the adjustment groove (302) is connected to a movable hole provided on the first connection block (301), and the movable hole is slidably connected to the first limit block (308).

7. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 3 is characterized by: The reinforcement component includes a second connecting block (314) fixed to the outer surface of the valve body (4), and the second connecting block (314) is provided with first limiting holes (310) on both sides thereof and slidably connected to the first limiting block (308). The fixing component also includes first limiting grooves (311) provided on both sides thereof and on the upper surface of the movable block (309), and the inner wall of the first limiting groove (311) is slidably connected to a second limiting block (312) with an L-shaped cross section.

8. The easily disassembled triple eccentric hard-seal butterfly valve disc according to claim 7 is characterized by: The second limit block (312) is threadedly connected to the outer surface of the threaded rod (303); the bottom of the adjustment groove (302) is connected to an adjustment hole provided on the first connection block (301); and the second limit block (312) is slidably connected to the adjustment hole.

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