Pneumatic expansion type butterfly valve suitable for dust medium

Abstract

The utility model relates to the field of butterfly valves, and discloses a pneumatic expansion type butterfly valve suitable for dust media, which comprises a butterfly valve, clamping grooves are arranged in the butterfly valve, and the circumference of the butterfly valve is equidistantly arranged; the controller is fixedly connected to the top of the butterfly valve; the expansion part is arranged at the bottom of the controller; and the dismounting part is arranged in the butterfly valve. The expansion sleeve is installed on the inner wall of the butterfly valve through the expansion part, the clamping sleeve is clamped into the clamping groove, the clamping sleeve extrudes the movable clamping block and the first spring check block, the movable clamping block rotates in the extrusion process, the purpose that the movable clamping block and the clamping sleeve are connected in a clamped mode is achieved, the effect of fixing the expansion sleeve is achieved, and then the piston and the conveying pipe are installed. When the expansion sleeve needs to be replaced, the pressing block is pressed, so that the movable clamping block rotates around the shaft, the movable clamping block is not connected with the clamping sleeve in a clamping mode any more, and the purpose of replacing the expansion sleeve is achieved.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, in particular to a pneumatic expansion butterfly valve suitable for dust media. Background Art

[0002] The butterfly valve, also known as the flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. The butterfly valve refers to a valve whose closing part (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing. The butterfly valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays a role of cutting off and throttling on the pipeline. The butterfly valve opening and closing part is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening, closing or regulating. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical industry, and water treatment, but also in the cooling water system of thermal power plants.

[0003] When using the current butterfly valve, although the expansion type butterfly valve can reduce the degree of wear, due to the passage of time, the expansion ring inside the butterfly valve will wear and need to be replaced to reduce economic losses and maximize its utilization. Utility Model Content

[0004] The utility model aims to provide a pneumatic expansion butterfly valve suitable for dust medium, so as to solve the above-mentioned background technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic expansion butterfly valve suitable for dust media, comprising: a butterfly valve, wherein the interior of the butterfly valve is provided with card slots, and the card slots are arranged equidistantly around the circumference; a controller, fixedly connected to the top of the butterfly valve; an expansion part arranged at the bottom of the controller; and a disassembly part arranged inside the butterfly valve.

[0006] Preferably, the expansion part includes: an air pump fixedly connected to the outer wall of the butterfly valve; a piston snap-fitted and connected between the inner walls of the butterfly valve; and an expansion sleeve snap-fitted and connected between the inner walls of the butterfly valve.

[0007] Preferably, a transmission tube is provided between the vacuum pump and the expansion sleeve, one end of the transmission tube is connected to the output end of the vacuum pump, and the other end of the transmission tube is connected to the inside of the expansion sleeve.

[0008] Preferably, a movable block is movably connected to the inside of the slot via an axle rod, a spring stopper one is fixedly connected to the inner wall of the slot, a spring stopper two is fixedly connected to the inner wall of the slot, a pressing block is slidably connected to the inside of the slot, and the pressing block is adapted to one end of the movable block.

[0009] Preferably, a clamping sleeve is fixedly connected to one side of the expansion sleeve, the clamping sleeve is matched with one end of the movable clamping block, one end of the clamping sleeve is matched with spring stopper one, and one end of the movable clamping block is matched with spring stopper two.

[0010] Preferably, the disassembly portion includes: a rotating rod rotatably connected to the inside of the butterfly valve; and a regulating box fixedly connected to the bottom of the controller.

[0011] Preferably, the outer wall of the rotating rod is fixedly connected with a baffle, the baffle is adapted to the butterfly valve, one end of the rotating rod passes through the butterfly valve and is fixedly connected with a fixing plate, and the bottom end of the fixing plate is fixedly connected with a hook.

[0012] Preferably, the interior of the regulating box is connected to a clamping block through rotation of shaft rod 1, the interior of the clamping block is provided with a small slide groove, the small slide groove is adapted to shaft rod 1, the clamping block is engaged and connected with a hook, the interior of the regulating box is connected to a handle through rotation of shaft rod 2, a connecting rod is provided between the handle and the clamping block, one end of the connecting rod is connected between the inner walls of the handle through rotation of the shaft rod, and the other end is connected between the inner walls of the clamping block through rotation of the shaft rod.

[0013] The utility model provides a pneumatic expansion butterfly valve suitable for dust medium. It has the following beneficial effects:

[0014] (1) The utility model installs the expansion sleeve on the inner wall of the butterfly valve through the expansion part, so that the sleeve is inserted into the slot, so that the sleeve squeezes the movable block and the spring stopper. During the squeezing process, the movable block rotates, so that the movable block and the sleeve are engaged and connected, and the expansion sleeve is fixed. Then the piston and the transmission pipe are installed before work can be carried out. When the expansion sleeve needs to be replaced, the pressing block is pressed to rotate the movable block around the axis, so that the movable block is no longer engaged and connected with the sleeve, so as to achieve the purpose of replacing the expansion sleeve.

[0015] (2) The utility model has a disassembly part. When the controller fails, the butterfly valve needs to be opened and closed. The controller is placed on the top of the butterfly valve, and the handle is turned to rotate around the axis. The block is moved through the connecting rod and the small slide groove, and is engaged with the hook to achieve the effect of disassembling the controller, so that the baffle is opened and closed by manually controlling the rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main schematic diagram of the structure of the utility model;

[0017] Figure 2 This is the front view of the utility model;

[0018] Figure 3 This is a view of the expansion part of the utility model;

[0019] Figure 4 This is a detailed view of the expansion part of the utility model;

[0020] Figure 5 This is a disassembled view of the utility model;

[0021] Figure 6 This is a detailed view of the disassembled parts of the utility model.

[0022] In the figure: 1 butterfly valve, 2 controller, 3 expansion part, 4 disassembly part;

[0023] 311 vacuum pump, 312 transmission pipe, 313 piston, 314 expansion sleeve, 315 clamping sleeve, 316 spring stopper 1, 317 spring stopper 2, 318 movable clamping block, 319 pressing block;

[0024] 411 rotating rod, 412 baffle plate, 413 fixing plate, 414 adjusting box, 415 hook, 416 block, 417 handle, 418 connecting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0027] The preferred embodiment of the pneumatic expansion butterfly valve suitable for dust medium provided by the utility model is as follows: Figure 1-6 As shown: a pneumatic expansion butterfly valve suitable for dust media, comprising: a butterfly valve 1, wherein the interior of the butterfly valve 1 is provided with card slots, which are arranged equidistantly around the circumference; a controller 2, which is fixedly connected to the top of the butterfly valve 1; an expansion part 3 arranged at the bottom of the controller 2; and a disassembly part 4 arranged inside the butterfly valve 1.

[0028] The expansion part 3 includes: an air pump 311 fixedly connected to the outer wall of the butterfly valve 1; a piston 313 snap-fitted and connected between the inner walls of the butterfly valve 1; and an expansion sleeve 314 snap-fitted and connected between the inner walls of the butterfly valve 1.

[0029] A transmission tube 312 is provided between the air extraction pump 311 and the expansion sleeve 314 . One end of the transmission tube 312 is connected to the output end of the air extraction pump 311 , and the other end of the transmission tube 312 is connected to the inside of the expansion sleeve 314 .

[0030] A movable block 318 is movably connected to the inside of the slot through an axle rod, a spring block 1 316 is fixedly connected to the inner wall of the slot, a spring block 2 317 is fixedly connected to the inner wall of the slot, a pressing block 319 is slidably connected to the inside of the slot, and the pressing block 319 is adapted to one end of the movable block 318.

[0031] A clamping sleeve 315 is fixedly connected to one side of the expansion sleeve 314 , and the clamping sleeve 315 is matched with one end of a movable block 318 , and one end of the clamping sleeve 315 is matched with a spring stopper 1 316 , and one end of the movable block 318 is matched with a spring stopper 2 317 .

[0032] Furthermore, in this embodiment, the expansion sleeve 314 is installed on the inner wall of the butterfly valve 1, and the sleeve 315 is inserted into the groove, so that the sleeve 315 squeezes the movable block 318 and the spring stopper 316. During the squeezing process, the movable block 318 rotates, so that the movable block 318 is engaged and connected with the sleeve 315, thereby fixing the expansion sleeve 314. Subsequently, the piston 313 and the transmission pipe 312 are installed before work can be carried out. When the expansion sleeve 314 needs to be replaced, the pressing block 319 is pressed to rotate the movable block 318 around the axis, so that the movable block 318 is no longer engaged and connected with the sleeve 315, thereby achieving the purpose of replacing the expansion sleeve 314. Embodiment 2

[0033] Based on Example 1, a preferred embodiment of a pneumatic expansion butterfly valve suitable for dust medium provided by the utility model is as follows Figure 1-6 As shown: the disassembly part 4 includes: a rotating rod 411, which is rotatably connected to the inside of the butterfly valve 1; and an adjusting box 414, which is fixedly connected to the bottom of the controller 2.

[0034] The outer wall of the rotating rod 411 is fixedly connected with a baffle 412 , and the baffle 412 is adapted to the butterfly valve 1 . One end of the rotating rod 411 penetrates the butterfly valve 1 and is fixedly connected with a fixing plate 413 . The bottom end of the fixing plate 413 is fixedly connected with a hook 415 .

[0035] The interior of the regulating box 414 is connected to a block 416 by rotation of shaft rod 1, and a small slide groove is provided inside the block 416, and the small slide groove is adapted to shaft rod 1, and the block 416 is engaged and connected with a hook 415. The interior of the regulating box 414 is connected to a handle 417 by rotation of shaft rod 2, and a connecting rod 418 is provided between the handle 417 and the block 416, and one end of the connecting rod 418 is connected between the inner walls of the handle 417 by rotation of the shaft rod, and the other end is connected between the inner walls of the block 416 by rotation of the shaft rod.

[0036] Furthermore, in this embodiment, when the controller 2 fails, the butterfly valve 1 needs to be opened and closed. The controller 2 is placed on the top of the butterfly valve 1, and the handle 417 is turned to rotate the handle 417 around the axis. The block 416 is movable through the connecting rod 418 and the small slide groove, and is engaged with the hook 415, so as to achieve the effect of disassembling the controller 2, thereby manually controlling the rotating rod 411 to open and close the baffle 412.

[0037] When in use, first, install the expansion sleeve 314 on the inner wall of the butterfly valve 1, and make the sleeve 315 fit into the slot, so that the sleeve 315 squeezes the movable block 318 and the spring stopper 316. During the squeezing process, the movable block 318 rotates, so that the movable block 318 and the sleeve 315 are engaged and connected, thereby fixing the expansion sleeve 314. Then, the piston 313 and the transmission pipe 312 are installed before work can be carried out. When the expansion sleeve 314 needs to be replaced, press the pressing block 319 to make The movable block 318 rotates around the axis so that the movable block 318 is no longer engaged with the sleeve 315, thereby achieving the purpose of replacing the expansion sleeve 314; secondly, when the controller 2 fails, the butterfly valve 1 needs to be opened and closed, the controller 2 is placed on the top of the butterfly valve 1, and the handle 417 is turned to make the handle 417 rotate around the axis, and the block 416 is movable through the connecting rod 418 and the small slide groove, and is engaged with the hook 415, so as to achieve the effect of disassembling the controller 2, thereby manually controlling the rotating rod 411 to open and close the baffle 412.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pneumatic expansion butterfly valve suitable for dusty media, characterized in that: include: A butterfly valve (1), wherein the butterfly valve (1) is provided with slots inside and arranged at equal intervals around the circumference; A controller (2) is fixedly connected to the top of the butterfly valve (1); An expansion portion (3) disposed at the bottom of the controller (2); A disassembly location (4) is arranged inside the butterfly valve (1).

2. A pneumatic expansion butterfly valve suitable for dusty media according to claim 1, characterized in that: The expansion part (3) comprises: An air pump (311) fixedly connected to the outer wall of the butterfly valve (1); The piston (313) is snap-fitted and connected between the inner walls of the butterfly valve (1); The expansion sleeve (314) is snap-fitted and connected between the inner walls of the butterfly valve (1).

3. A pneumatic expansion butterfly valve suitable for dusty media according to claim 2, characterized in that: A transmission tube (312) is provided between the air extraction pump (311) and the expansion sleeve (314); one end of the transmission tube (312) is connected to the output end of the air extraction pump (311), and the other end is connected to the inside of the expansion sleeve (314).

4. The pneumatic expansion butterfly valve suitable for dusty media according to claim 1, characterized in that: A movable clamping block (318) is movably connected to the interior of the clamping slot via a shaft rod, a spring stopper 1 (316) is fixedly connected to the inner wall of the clamping slot, a spring stopper 2 (317) is fixedly connected to the inner wall of the clamping slot, and a pressing block (319) is slidably connected to the interior of the clamping slot, and the pressing block (319) is adapted to one end of the movable clamping block (318).

5. The pneumatic expansion butterfly valve suitable for dusty media according to claim 3, characterized in that: A clamping sleeve (315) is fixedly connected to one side of the expansion sleeve (314); the clamping sleeve (315) is matched with one end of a movable clamping block (318); one end of the clamping sleeve (315) is matched with a spring stopper 1 (316); and one end of the movable clamping block (318) is matched with a spring stopper 2 (317).

6. The pneumatic expansion butterfly valve suitable for dusty media according to claim 1, characterized in that: The disassembly portion (4) includes: A rotating rod (411) is rotatably connected to the interior of the butterfly valve (1); The regulating box (414) is fixedly connected to the bottom of the controller (2).

7. A pneumatic expansion butterfly valve suitable for dusty media according to claim 6, characterized in that: The outer wall of the rotating rod (411) is fixedly connected to a baffle plate (412), the baffle plate (412) being compatible with the butterfly valve (1), one end of the rotating rod (411) passing through the butterfly valve (1) is fixedly connected to a fixing plate (413), and the bottom end of the fixing plate (413) is fixedly connected to a hook (415).

8. The pneumatic expansion butterfly valve suitable for dusty media according to claim 6, characterized in that: The inside of the regulating box (414) is connected to a clamping block (416) by rotation of the shaft rod 1, and a small slide groove is provided inside the clamping block (416), and the small slide groove is matched with the shaft rod 1. The clamping block (416) is engaged and connected with the hook (415). The inside of the regulating box (414) is connected to a handle (417) by rotation of the shaft rod 2. A connecting rod (418) is provided between the handle (417) and the clamping block (416), and one end of the connecting rod (418) is connected to the inner wall of the handle (417) by rotation of the shaft rod, and the other end is connected to the inner wall of the clamping block (416) by rotation of the shaft rod.

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