A butterfly valve that is easy to maintain and repair

Abstract

The utility model discloses a butterfly valve in the field of butterfly valves, which is easy to maintain and repair. It comprises a butterfly valve body, a sealing mechanism, a connecting mechanism and a connecting pipe, wherein the sealing mechanism is fixedly connected to the front and rear parts of the butterfly valve body, the connecting pipe is fixedly connected to the front and rear parts of the butterfly valve body through the connecting mechanism, and the outer side wall of the butterfly valve body is symmetrically fixedly connected with a mounting box. When maintenance and repair are needed, the butterfly valve, which is easy to maintain and repair, is driven to rotate the threaded barrel by turning the knob, and the L-shaped plate is restricted by the sliding rod so that the L-shaped plate can only slide on the outside of the sliding rod to restrict the threaded rod. When the threaded barrel rotates, the front and rear threaded rods move away from each other, the clamping plates move away from each other, the fixing rod is withdrawn from the fixing hole, and the fixing of the connecting pipe is released, thereby avoiding the disassembly of a large number of bolts, saving disassembly time, saving time and effort, reducing labor, facilitating maintenance, and improving maintenance efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve which is easy to maintain and repair. 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 is a disc that rotates around the valve axis to achieve opening and closing. 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. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, easy and quick in operation, but also has good flow regulation function and closing seal at the same time.

[0003] At present, butterfly valves are usually connected by a large number of bolts during installation, which results in a large number of bolts needing to be removed when the butterfly valve is disassembled for maintenance and repair. The disassembly is time-consuming and labor-intensive, greatly increasing the workload of maintenance personnel, reducing maintenance efficiency, and making maintenance and repair inconvenient. For this reason, we propose a butterfly valve that is easy to maintain and repair. Utility Model Content

[0004] The purpose of the utility model is to provide a butterfly valve that is easy to maintain and repair, so as to solve the problem raised in the above background technology that when the current butterfly valve is disassembled for maintenance and repair, a large number of bolts need to be disassembled, which is time-consuming and labor-intensive, greatly increases the workload of maintenance personnel, reduces maintenance efficiency, and is inconvenient for maintenance and repair.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve that is easy to maintain and repair, comprising a butterfly valve body, a sealing mechanism, a connecting mechanism and a connecting pipe, the sealing mechanism is fixedly connected to the front and rear parts of the butterfly valve body, the connecting pipe is fixedly connected to the front and rear parts of the butterfly valve body through the connecting mechanism, the connecting mechanism comprises a mounting box, a sliding rod, an L-shaped plate, a clamping plate, a fixing rod, a threaded rod, a threaded tube, a knob and a fixing hole, the outer side wall of the butterfly valve body is symmetrically fixedly connected with the mounting box, the sliding rod is symmetrically fixedly connected between the front and rear sides of the inner cavity of the mounting box, the outer side wall of the sliding rod is slidably connected with the L-shaped plate, the mutually away sides of the L-shaped plates at the front and rear parts are fixedly connected with the clamping plates, and the opposite sides of the clamping plates at the front and rear parts are fixedly connected with the clamping plates. A fixing rod is fixedly connected at the places close to each other, a threaded rod is fixedly connected at the sides far away from each other on the opposite sides of the front and rear clamps, a threaded cylinder is screwed on the outer sides of the threaded rods at the front and rear, a knob is fixedly connected at the middle of the outer wall of the threaded cylinder, and fixing holes are evenly opened at the opposite side edges of the connecting pipes at the front and rear. The sealing mechanism includes a sealing box, a slide groove, a slider, a moving ring, a compression spring and a sealing ring. The front and rear sides of the butterfly valve body are fixedly connected with a sealing box, and the inner cavity side walls of the sealing box are symmetrically opened with slide grooves, and the inside of the slide groove is slidably connected with a slider, and a moving ring is fixedly connected between the opposite sides of the sliders at the left and right parts, the rear side of the moving ring is evenly fixedly connected with a compression spring, and the front side of the moving ring is fixedly connected with a sealing ring.

[0006] As a further description of the above technical solution:

[0007] The thread directions of the threaded rods at the front and rear parts are opposite, and the thread directions of the front and rear parts of the inner side wall of the threaded barrel are also opposite.

[0008] As a further description of the above technical solution:

[0009] The outer side wall of the L-shaped plate is fitted with the inner side wall of the installation box, the outer side of the knob is provided with anti-slip grooves, and the diameter of the fixing rod is equal to the diameter of the fixing hole.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the sliding block is fitted with the inner wall of the sliding groove, and the rear end of the compression spring is fixedly connected to the rear side of the inner cavity of the sealing box.

[0012] As a further description of the above technical solution:

[0013] The moving ring is slidably connected to the inside of the sealing box, and the outer side wall of the moving ring is in contact with the inner side wall of the sealing box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The butterfly valve which is easy to maintain and repair, when maintenance and repair is needed, the threaded barrel is driven to rotate by turning the knob, and the L-shaped plate is restricted by the slide rod, so that the L-shaped plate can only slide on the outside of the slide rod, restricting the threaded rod. When the threaded barrel rotates, the front and rear threaded rods are moved away from each other, the clamping plates are moved away from each other, the fixing rod is withdrawn from the fixing hole, and the fixing of the connecting pipe is released, thereby avoiding the removal of a large number of bolts, saving disassembly time, saving time and effort, reducing labor, facilitating maintenance, and improving maintenance efficiency.

[0016] 2. When installing the butterfly valve which is easy to maintain and repair, the connecting pipe squeezes the sealing ring, so that the sealing ring drives the moving ring to contract, thereby squeezing the compression spring and deforming the compression spring. At the same time, the reaction force of the compression spring causes the sealing ring to reversely squeeze the connecting pipe, so that the sealing ring and the connecting pipe are always in contact, thereby ensuring the sealing type of the connection and improving the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a butterfly valve that is easy to maintain and repair, proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the connection mechanism structure of a butterfly valve that is easy to maintain and repair, proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the sealing mechanism structure of a butterfly valve that is easy to maintain and repair, as proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a sealing ring structure of a butterfly valve which is easy to maintain and repair.

[0021] In the figure: 100, butterfly valve body; 200, sealing mechanism; 210, sealing box; 220, slide groove; 230, slider; 240, moving ring; 250, compression spring; 260, sealing ring; 300, connecting mechanism; 310, installation box; 320, slide rod; 330, L-shaped plate; 340, clamping plate; 350, fixing rod; 360, threaded rod; 370, threaded cylinder; 380, knob; 390, fixing hole; 400, connecting pipe. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a butterfly valve that is easy to maintain and repair, avoiding the need to disassemble a large number of bolts, saving disassembly time, saving time and effort, reducing labor, facilitating repairs, and improving repair efficiency. Please refer to Figure 1-4 , comprising a butterfly valve body 100, a sealing mechanism 200, a connecting mechanism 300 and a connecting pipe 400;

[0026] Please refer again Figure 1 The butterfly valve body 100 is used to install the sealing mechanism 200, the connecting mechanism 300 and the connecting pipe 400;

[0027] Please refer again Figure 1 The sealing mechanism 200 is fixedly connected to the front and rear parts of the butterfly valve body 100 for sealing, and the connecting pipe 400 is fixedly connected to the front and rear parts of the butterfly valve body 100 through the connecting mechanism 300;

[0028] Please refer again Figure 2 , the connection mechanism 300 includes a mounting box 310, a slide bar 320, an L-shaped plate 330, a clamping plate 340, a fixing rod 350, a threaded rod 360, a threaded barrel 370, a knob 380 and a fixing hole 390;

[0029] Please refer again Figure 2The outer wall of the butterfly valve body 100 is symmetrically fixedly connected with a mounting box 310, and a sliding rod 320 is symmetrically fixedly connected between the front and rear sides of the inner cavity of the mounting box 310. The outer wall of the sliding rod 320 is slidably connected with an L-shaped plate 330, and the front and rear L-shaped plates 330 are fixedly connected with a clamping plate 340 on the sides away from each other, and the opposite sides of the front and rear clamping plates 340 are fixedly connected with a fixing rod 350 on the sides close to each other;

[0030] Please refer again Figure 2 A threaded rod 360 is fixedly connected to the opposite sides of the front and rear clamps 340, and a threaded tube 370 is screwed to the outer side of the front and rear threaded rod 360. A knob 380 is fixedly connected to the middle of the outer wall of the threaded tube 370, and fixing holes 390 are evenly opened on the opposite side edges of the front and rear connecting tubes 400.

[0031] To summarize, when maintenance and repair are needed, the knob 380 is turned to drive the threaded tube 370 to rotate, and the slide rod 320 restricts the L-shaped plate 330 so that the L-shaped plate 330 can only slide on the outside of the slide rod 320, restricting the threaded rod 360. When the threaded tube 370 rotates, the front and rear threaded rods 360 move away from each other, the clamps 340 move away from each other, the fixing rod 350 withdraws from the fixing hole 390, and the fixing of the connecting pipe 400 is released, thereby avoiding the removal of a large number of bolts, saving disassembly time, saving time and effort, reducing labor, facilitating maintenance, and improving maintenance efficiency.

[0032] Please refer again Figure 3 The sealing mechanism 200 includes a sealing box 210, a slide groove 220, a slider 230, a moving ring 240, a compression spring 250 and a sealing ring 260. The front and rear sides of the butterfly valve body 100 are fixedly connected with the sealing box 210. The inner cavity side wall of the sealing box 210 is symmetrically provided with a slide groove 220. The slider 230 is slidably connected inside the slide groove 220. The moving ring 240 is fixedly connected between the opposite sides of the left and right sliders 230. The rear side of the moving ring 240 is evenly fixedly connected with the compression spring 250. The front side of the moving ring 240 is fixedly connected with the sealing ring 260.

[0033] Please refer again Figure 2 The thread directions of the threaded rods 360 at the front and rear parts are opposite, and the thread directions of the front and rear parts of the inner side wall of the threaded cylinder 370 are also opposite.

[0034] Please refer again Figure 2 The outer wall of the L-shaped plate 330 is in contact with the inner wall of the installation box 310 , the outer side of the knob 380 is provided with anti-slip grooves, and the diameter of the fixing rod 350 is equal to the diameter of the fixing hole 390 .

[0035] Please refer again Figure 3The outer wall of the slider 230 is in contact with the inner wall of the slide groove 220 , and the rear end of the compression spring 250 is fixedly connected to the rear side of the inner cavity of the sealing box 210 .

[0036] Please refer again Figure 3 The moving ring 240 is slidably connected to the inside of the sealing box 210 , and the outer wall of the moving ring 240 is in contact with the inner wall of the sealing box 210 .

[0037] To summarize, during installation, the connecting tube 400 squeezes the sealing ring 260, so that the sealing ring 260 drives the moving ring 240 to contract, thereby squeezing the compression spring 250 and deforming the compression spring 250. At the same time, through the reaction force of the compression spring 250, the sealing ring 260 squeezes the connecting tube in reverse, so that the sealing ring 260 and the connecting tube 400 are always in contact with each other, thereby ensuring the sealing type of the connection and improving the sealing effect of the device.

[0038] In specific use, when maintenance and repair are needed, the technicians in this technical field can rotate the knob 380 to drive the threaded cylinder 370 to rotate, and the slide rod 320 restricts the L-shaped plate 330, so that the L-shaped plate 330 can only slide on the outside of the slide rod 320, restricting the threaded rod 360. When the threaded cylinder 370 rotates, the front and rear threaded rods 360 move away from each other, the clamping plates 340 move away from each other, the fixing rod 350 withdraws from the fixing hole 390, and the fixing of the connecting pipe 400 is released. The butterfly valve body 100 is dismantled for maintenance and repair. When installing, the connecting pipe 400 is connected to the butterfly valve body 100. The tube 400 squeezes the sealing ring 260, so that the sealing ring 260 drives the moving ring 240 to contract, thereby squeezing the compression spring 250 and deforming the compression spring 250. At the same time, through the reaction force of the compression spring 250, the sealing ring 260 reversely squeezes the connecting tube, so that the sealing ring 260 and the connecting tube 400 are always in contact with each other. Then, the fixing hole 390 is aligned with the fixing rod 350, and the knob 380 is reversed to rotate the threaded tube 370, so that the clamp plate 340 drives the fixing rod 350 to reset, so that the fixing rod 350 is embedded in the fixing hole 390 to complete the fixation.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A butterfly valve that is easy to maintain and repair, characterized in that: The invention comprises a butterfly valve body (100), a sealing mechanism (200), a connecting mechanism (300) and a connecting pipe (400), wherein the sealing mechanism (200) is fixedly connected to the front and rear parts of the butterfly valve body (100), the connecting pipe (400) is fixedly connected to the front and rear parts of the butterfly valve body (100) through the connecting mechanism (300), and the connecting mechanism (300) comprises a mounting box (310), a sliding rod (320), an L-shaped plate (330), a clamping plate (340), a fixing rod (350), a threaded rod (360), a threaded rod (370), a fixing rod (380), a fixing rod (390), a fixing rod (401), a fixing rod (410), a fixing rod (411), a fixing rod (412), a fixing rod (413), a fixing rod (414), a fixing rod (415), a fixing rod (416), a fixing rod (417), a fixing rod (418), a fixing rod (419), a fixing rod (420), a fixing rod (421), a fixing rod (422), a fixing rod (423), a fixing rod (424), a fixing rod (425), a fixing rod (426), a fixing rod (427), a fixing rod (428), a fixing rod (429), a fixing rod (430), a fixing rod (431), a fixing rod (432), a fixing rod (433), a fixing rod (434), a fixing rod (435), a fixing rod (436), a fixing rod (437), a fixing rod (438), a fixing rod (439), a fixing rod (440), a fixing rod (441), a fixing rod (442), a fixing rod (443), a fixing rod (444), a fixing rod (445), a fixing rod (446), a fixing rod (447), a fixing rod (448), a The butterfly valve body (100) is provided with a grooved cylinder (370), a knob (380) and a fixing hole (390), the outer wall of the butterfly valve body (100) is symmetrically fixedly connected with a mounting box (310), a sliding rod (320) is symmetrically fixedly connected between the front and rear sides of the inner cavity of the mounting box (310), the outer wall of the sliding rod (320) is slidably connected with an L-shaped plate (330), the front and rear sides of the L-shaped plate (330) are fixedly connected with a clamping plate (340) at the sides away from each other, and the opposite sides of the clamping plates (340) at the front and rear sides are fixedly connected with a fixing rod (350) at the sides close to each other. ), the opposite sides of the front and rear clamping plates (340) are fixedly connected with threaded rods (360) on the sides away from each other, the outer sides of the front and rear threaded rods (360) are screwed with threaded cylinders (370), the middle part of the outer wall of the threaded cylinder (370) is fixedly connected with a knob (380), the opposite side edges of the front and rear connecting pipes (400) are evenly provided with fixing holes (390), the sealing mechanism (200) includes a sealing box (210), a slide groove (220), a slider (230), a moving ring (240), a compression spring (25 0) and a sealing ring (260), the front and rear sides of the butterfly valve body (100) are fixedly connected with a sealing box (210), the inner cavity side wall of the sealing box (210) is symmetrically provided with a slide groove (220), the inside of the slide groove (220) is slidably connected with a slider (230), the left and right sides of the slider (230) are fixedly connected with a moving ring (240), the rear side of the moving ring (240) is evenly fixedly connected with a compression spring (250), and the front side of the moving ring (240) is fixedly connected with a sealing ring (260).

2. A butterfly valve that is easy to maintain and repair according to claim 1, characterized in that: The thread directions of the front and rear threaded rods (360) are opposite, and the thread directions of the front and rear inner side walls of the threaded barrel (370) are also opposite.

3. A butterfly valve that is easy to maintain and repair according to claim 1, characterized in that: The outer wall of the L-shaped plate (330) is fitted with the inner wall of the installation box (310), the outer side of the knob (380) is provided with anti-slip grooves, and the diameter of the fixing rod (350) is equal to the diameter of the fixing hole (390).

4. A butterfly valve that is easy to maintain and repair according to claim 1, characterized in that: The outer wall of the sliding block (230) is in contact with the inner wall of the sliding groove (220), and the rear end of the compression spring (250) is fixedly connected to the rear side of the inner cavity of the sealing box (210).

5. The butterfly valve that is easy to maintain and repair according to claim 1 is characterized in that: The moving ring (240) is slidably connected to the inside of the sealing box (210), and the outer wall of the moving ring (240) is in contact with the inner wall of the sealing box (210).

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