Double-clip type butterfly valve

Abstract

The utility model discloses a wafer type butterfly valve, and relates to the technical field of valves. The valve comprises a valve body, a control box is fixedly connected to the top of the valve body, and a valve clack is arranged in an inner cavity of the valve body; an anti-abrasion assembly is arranged in an inner cavity of the valve body and comprises a first spring, and the first spring is fixedly connected to the periphery of the inner cavity of the valve body. The rotating rod is rotated, the driving bevel gear is used for driving the driven bevel gear to rotate so as to drive the lead screw to rotate, the lead screw rotates to drive the valve clack on the surface of the driven rod to rotate so that the valve clack can be parallel to an inner cavity of the valve body to close the valve body, and in the rotating process of the lead screw, the threaded plate can be driven to move so as to push the inclined plate to extrude the inclined block; the sealing ring is forced to move from the inner cavity of the valve body to the surface of the valve clack, sealing between the valve clack and the inner cavity of the valve body can be effectively achieved through the structure, meanwhile, direct friction between the valve clack and the sealing ring can be reduced through movement of the sealing ring, and abrasion is relieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, especially, relate to a pair of clamping butterfly valve. BACKGROUND

[0002] The pair of clamping butterfly valve is a common industrial valve type, is mainly used in the flow control and cut-off of medium in pipeline system, and its basic structure is composed of a butterfly valve, valve seat, valve body, driving device and the like, wherein the valve is usually discoid, is installed in the valve body, rotates around its axis to adjust the passing of fluid, and the pair of clamping butterfly valve is characterized in that its installation mode: the connecting holes at both ends of the valve body are designed to be butted with the flanges at both ends of the pipeline, and the valve is clamped between the pipelines through fastening bolts, which makes the pair of clamping butterfly valve have a relatively simple installation and disassembly mode, and is particularly suitable for small and medium-sized pipeline systems.

[0003] The pair of clamping butterfly valve in the prior art, when used in a scene that needs to be frequently opened and closed, the valve will be in contact and friction with the sealing element on the inner wall of the valve body during rotation, and long-term friction may cause wear and damage of the sealing element, the wear may cause the sealing performance to gradually decrease, and eventually may cause the sealing effect between the valve and the valve body to fail, thereby affecting the normal use and service life of the butterfly valve, increasing the frequency of maintenance and replacement, and reducing the reliability and economy of the equipment.

[0004] Therefore, the pair of clamping butterfly valve is provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a pair of clamping butterfly valve, through the cooperation of anti-abrasion assembly and self-locking assembly, solve the pair of clamping butterfly valve in the prior art, the sealing element between the valve and the valve body is often rubbed, affect the problem of butterfly valve sealing effect.

[0006] To solve the above technical problems, the utility model is realized through the following technical schemes.

[0007] The utility model discloses a pair of clamping butterfly valve, including the valve body, the valve body top fixedly connected with the operating box, the valve body inner chamber is provided with the valve, the valve body inner chamber is provided with anti-abrasion assembly, and the anti-abrasion assembly includes the first spring, and the first spring is fixedly connected in the valve body inner chamber four quarters, and one end of the first spring is fixedly connected with the sealing ring, one side fixedly connected with the inclined piece on the sealing ring surface, the second spring is fixedly connected with one side of the inclined piece, and one end of the second spring is fixedly connected with the valve body inner wall, the operating box inner chamber is provided with self-locking assembly, and the self-locking assembly includes the lead screw, and the lead screw is movably connected in the operating box inner chamber, one side fixedly connected with the self-locking turntable on the operating box surface, the operating box inner chamber one side top is fixedly connected with the spring rod, and one end of the spring rod is fixedly connected with the self-locking block.

[0008] The utility model further sets up, the anti -wear assembly still includes the screw plate, the screw plate is connected on the screw rod surface, the screw plate bottom both sides all are fixedly connected with the inclined plate, the inclined plate bottom side is connected with the inclined block one side sliding.

[0009] The utility model further sets up, the operating box one side swing joint has the rotary lever, the rotary lever one end fixedly connected with hand turn round.

[0010] The utility model further sets up, the rotary lever one end extends to the operating box inner chamber, the rotary lever one end fixedly connected with driving bevel gear, the screw rod surface one side fixedly connected with driven bevel gear, driving bevel gear and driven bevel gear mesh.

[0011] The utility model further sets up, the screw rod one end fixedly connected with driven rod, driven rod one end and valve body inner chamber bottom through the rotary shaft swing joint, driven rod surface and valve clack inner chamber fixedly connected.

[0012] The utility model further sets up, the operating box bottom both sides all are set up with the extension groove, and the extension groove inner chamber extends to the valve body inner chamber, the inclined plate surface and extension groove inner chamber sliding connection.

[0013] The utility model further sets up, the valve body surface both sides all fixedly connected with the mounting block, the mounting block inner chamber is set up with the mounting hole.

[0014] The utility model further sets up, the operating box inner chamber both sides all fixedly connected with the limit rod, and the limit rod surface and screw plate inner chamber one side sliding connection.

[0015] The utility model has the advantages of following.

[0016] 1, the utility model through rotary lever, utilize driving bevel gear to drive driven bevel gear rotation, to drive screw rotation, the rotation of screw further drives driven rod surface valve clack to rotate, make it with valve body inner chamber parallel close valve body, in the process of screw rotation, still drive screw plate to move, to push the inclined plate extrusion inclined block, force sealing ring to move from valve body inner chamber to valve clack surface, this structure can effectively realize the sealing between valve clack and valve body inner chamber, simultaneously, the movement of sealing ring can reduce the direct friction between valve clack and sealing ring, and slow down the wear.

[0017] 2, the utility model through rotary lever drive screw rotation, to make screw surface one side self -locking turntable rotate, in the process of self -locking turnplate rotation, it can extrude self -locking block, through the action of spring rod makes self -locking block shrink, when rotation stops, self -locking block will automatically be clamped into the clamping groove of self -locking turnplate, to realize the locking of rotary lever, prevent screw from automatic rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 It is a three-dimensional diagram of a wafer-type butterfly valve.

[0020] Figure 2 It is a cross-sectional view of the valve body in a wafer-type butterfly valve.

[0021] Figure 3 This is an exploded view of the internal structure of the valve body in a wafer-type butterfly valve.

[0022] Figure 4 This is a cross-sectional view of the control box in a wafer-type butterfly valve.

[0023] Figure 5 This is an exploded view of the internal structure of the operating box in a wafer-type butterfly valve.

[0024] In the accompanying drawings: 1. Valve body; 2. Control box; 3. Valve disc; 4. First spring; 5. Sealing ring; 6. Bevel block; 7. Second spring; 8. Lead screw; 9. Self-locking turntable; 10. Spring rod; 11. Self-locking block; 12. Threaded plate; 13. Bevel plate; 14. Turning rod; 15. Hand wheel; 16. Driving bevel gear; 17. Driven bevel gear; 18. Driven rod; 19. Mounting block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] See also Figures 1-5 The utility model is a wafer-type butterfly valve, comprising a valve body 1, a manipulation box 2 being fixedly connected to the top of the valve body 1, and a valve disc 3 being provided in the inner cavity of the valve body 1; an anti-wear component is provided in the inner cavity of the valve body 1, and the anti-wear component comprises a first spring 4, which is fixedly connected to the inner cavity of the valve body 1 around, and one end of the first spring 4 is fixedly connected to a sealing ring 5, and one side of the surface of the sealing ring 5 is fixedly connected to an inclined block 6, and one side of the inclined block 6 is fixedly connected to a second spring 7, and one end of the second spring 7 is fixedly connected to the inner wall of the valve body 1; a self-locking component is provided in the inner cavity of the manipulation box 2, and the self-locking component comprises a screw 8, which is movably connected to the inner cavity of the manipulation box 2, and a self-locking turntable 9 is fixedly connected to one side of the surface of the manipulation box 2, and a spring rod 10 is fixedly connected to the top of one side of the inner cavity of the manipulation box 2, and one end of the spring rod 10 is fixedly connected to a self-locking block 11.

[0028] Specifically: the connection sleeve is fixed between the operating box 2 and the valve body 1, the first spring 4 is fixed around the inner cavity of the valve body 1 and is fixed at one end with the surface of the sealing ring 5, the surface of the sealing ring 5 is slidably connected with the inner wall of the valve body 1 to prevent water flowing in the valve body 1 from leaking, the sealing ring 5 is divided into two parts and is semicircular, can be fitted, the second spring 7 on one side of the inclined block 6 can drive the sealing ring 5 on one side of the inclined block 6 to reset automatically, the self-locking block 11 is fixedly connected with a plurality of clamping blocks on the surface of the self-locking disc 9 and can be clamped in the clamping groove between the clamping blocks.

[0029] Embodiment two

[0030] Please refer to Figures 1-5 , on the basis of embodiment one, the anti-abrasion assembly further comprises a threaded plate 12, the threaded plate 12 is threadedly connected to the surface of the lead screw 8, the threaded plate 12 is fixedly connected with inclined plates 13 on both sides of the bottom, the inclined plates 13 are slidably connected with the inclined block 6 on one side of the bottom, the operating box 2 is movably connected with a rotating rod 14 on one side, the rotating rod 14 is fixedly connected with a hand wheel 15 at one end, the rotating rod 14 extends into the inner cavity of the operating box 2 at one end, the rotating rod 14 is fixedly connected with a driving bevel gear 16 at one end, the lead screw 8 is fixedly connected with a driven bevel gear 17 on one side of the surface, the driving bevel gear 16 is meshed with the driven bevel gear 17, the lead screw 8 is fixedly connected with a driven rod 18 at one end, the driven rod 18 is movably connected with the inner cavity of the valve body 1 at one end through a rotating shaft, the surface of the driven rod 18 is fixedly connected with the inner cavity of the valve disc 3, the operating box 2 is provided with extension grooves on both sides of the bottom, the extension grooves extend into the inner cavity of the valve body 1, the surface of the inclined plate 13 is slidably connected with the extension grooves, the valve body 1 is fixedly connected with mounting blocks 19 on both sides of the surface, the mounting blocks 19 are provided with mounting holes in the inner cavities, the inner cavities of the operating box 2 are fixedly connected with limiting rods on both sides, the surface of the limiting rods is slidably connected with one side of the inner cavity of the threaded plate 12.

[0031] Specifically: the inclined plate 13 extends to the inside of the valve body 1, can extrude the inclined block 6, the rotating rod 14 extends to the inside of the operating box 2 at one end, so as to drive the driven bevel gear 17 to rotate by cooperating with the driving bevel gear 16, the driven rod 18 is fixed at one end with the lead screw 8 and is movably connected with the inner wall of the valve body 1 on the surface, is movably connected with the inner cavity of the valve body 1 at the other end through a rotating shaft, the valve body 1 can be installed between two flanges by the mounting blocks 19 and the mounting holes.

[0032] The working principle of the utility model is as follows: when it is needed to open the valve body 1 to make water flow, first, rotate the hand wheel 15, the hand wheel 15 drives the rotating rod 14 to rotate, the rotating rod 14 drives the driving bevel gear 16 to rotate, the driving bevel gear 16 drives the driven bevel gear 17 to rotate, the driven bevel gear 17 drives the lead screw 8 to rotate, the lead screw 8 drives the driven rod 18 to rotate, the driven rod 18 drives the valve disc 3 to rotate, so that a gap is left between the valve disc 3 and the inner wall of the valve body 1, so as to make water flow.

[0033] When the screw rod 8 rotates, the threaded plate 12 can also move downward along the vertical direction of the screw rod 8, the threaded plate 12 drives the inclined plate 13 to move, the bottom of the inclined plate 13 presses one side of the inclined block 6, and through the elasticity of the first spring 4 and the second spring 7, the sealing ring 5 can move to the inside of the valve body 1, so that the valve disc 3 is separated from the sealing ring 5 when rotating, so as to avoid friction between the valve disc 3 and the sealing ring 5, and affect the sealing property of the sealing ring 5; when closing the valve body 1, only the hand wheel 15 is rotated in the reverse direction, so that the valve disc 3 is parallel to the inner wall of the valve body 1, and the sealing ring 5 is moved to the inner ring and the surface of the valve disc 3 to be sealed.

[0034] When the hand wheel 15 is rotated, the screw rod 8 drives the self-locking turntable 9 to rotate, so that the self-locking turntable 9 on one side of the surface of the screw rod 8 rotates, and in the process of rotating the self-locking turntable 9, the self-locking block 11 can be pressed, and the self-locking block 11 is contracted through the action of the spring rod 10; when the rotation is stopped, the self-locking block 11 is automatically clamped into the clamping groove of the self-locking turntable 9, so that the rotation rod 14 is locked and positioned, and the automatic rotation of the screw rod 8 is prevented.

[0035] The standard parts used in the utility model can be purchased from the market, and can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the control mode is automatically controlled through a control unit, the control circuit of the control unit can be realized through simple programming of the person skilled in the art, and the control mode and the circuit connection are well known in the art, so the control mode and the circuit connection are not explained in detail in the utility model.

[0036] The preferred embodiments of the utility model disclosed above are only used for helping to describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. A clamp butterfly valve comprising a valve body (1), characterized in that: The valve body (1) top fixedly connected with the operating box (2), the valve body (1) inner cavity is provided with valve clack (3); The valve body (1) inner cavity is provided with anti-abrasion assembly, the anti-abrasion assembly includes first spring (4), first spring (4) is fixedly connected to the inner cavity of valve body (1), one end of first spring (4) is fixedly connected with sealing ring (5), one side of sealing ring (5) surface is fixedly connected with inclined block (6), one side of inclined block (6) is fixedly connected with second spring (7), one end of second spring (7) is fixedly connected with the inner wall of valve body (1); The inner cavity of operating box (2) is provided with self-locking assembly, the self-locking assembly includes lead screw (8), the inner cavity of operating box (2) is movably connected with lead screw (8), one side of the surface of operating box (2) is fixedly connected with self-locking turntable (9), the inner cavity of operating box (2) one side top is fixedly connected with spring rod (10), one end of spring rod (10) is fixedly connected with self-locking block (11).

2. The clamp-type butterfly valve according to claim 1, wherein: The anti-abrasion assembly further includes threaded plate (12), the threaded plate (12) is screw connected on the surface of lead screw (8), the bottom of threaded plate (12) is fixedly connected with inclined plate (13) on both sides, the bottom of inclined plate (13) is slidably connected with one side of inclined block (6).

3. The clamp-type butterfly valve according to claim 1, wherein: One side of operating box (2) is movably connected with rotating rod (14), one end of rotating rod (14) is fixedly connected with hand wheel (15).

4. A clamp-on butterfly valve according to claim 3, wherein: One end of rotating rod (14) extends to the inner cavity of operating box (2), one end of rotating rod (14) is fixedly connected with driving bevel gear (16), one side of the surface of lead screw (8) is fixedly connected with driven bevel gear (17), driving bevel gear (16) is engaged with driven bevel gear (17).

5. The clamp-type butterfly valve according to claim 1, wherein: One end of lead screw (8) is fixedly connected with driven rod (18), one end of driven rod (18) is movably connected with the bottom of valve body (1) inner cavity through rotating shaft, the surface of driven rod (18) is fixedly connected with valve clack (3) inner cavity.

6. The clamp-type butterfly valve according to claim 2, wherein: The bottom of operating box (2) is provided with extension groove on both sides, the inner cavity of extension groove extends to the inner cavity of valve body (1), the surface of inclined plate (13) is slidably connected with the inner cavity of extension groove.

7. The clamp-type butterfly valve according to claim 1, wherein: The surface of valve body (1) is fixedly connected with mounting block (19) on both sides, the inner cavity of mounting block (19) is provided with mounting hole.

8. The clamp-type butterfly valve according to claim 1, wherein: The inner cavity of operating box (2) is fixedly connected with limit rod on both sides, the surface of limit rod is slidably connected with one side of the inner cavity of threaded plate (12).

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