CN220396490U - Butt clamp butterfly valve - Google Patents

Abstract

The utility model discloses a butt-clamping butterfly valve, which comprises a valve body, a valve plate and a valve rod, wherein a fixed seat is arranged on the valve body, one end of the valve rod penetrates through the fixed seat and the valve body to be fixedly connected with the valve plate, the other end of the valve rod is provided with a convex column with a non-circular structure, the fixed seat is provided with a power part for driving the convex column to rotate, the power part comprises a rotating seat, a telescopic rod and a positioning part, the rotating seat is rotatably arranged on the fixed seat, the rotating amplitude of the rotating seat is 90 degrees, the positioning part is vertically and slidably arranged on the rotating seat, and two clamping grooves matched with the positioning part are arranged on the fixed seat.

Description

Butt clamp butterfly valve

Technical Field

The utility model discloses a butt-clamping butterfly valve, and belongs to the technical field of valves.

Background

The butterfly valve is also called as a flap valve, the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is a valve which is characterized in that a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, the opposite-clamping butterfly valve is simple in structure and only comprises a few parts, the butterfly valve can be quickly opened and closed only by rotating by 90 degrees, the operation is simple, and meanwhile, the valve has good fluid control characteristics.

The existing butt-clamping butterfly valve mostly adopts a gear transmission mode to control the opening and closing of the valve, in order to achieve the labor-saving effect, part of the butt-clamping butterfly valve can replace the gear transmission structure with a telescopic rod structure, the thrust required by the valve rod when being opened is reduced by prolonging the arm of force, so that the labor-saving effect is achieved, but the butterfly valve can be pushed at any time due to the telescopic rod, and the working of the valve cannot be ensured to be in a completely closed or completely opened state under the condition that misoperation or valve rod rotation is not in place.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a butt-clamping butterfly valve.

The utility model realizes the aim through the following technical scheme that the butt-clamping butterfly valve comprises a valve body, a valve plate and a valve rod, wherein a fixed seat is arranged on the valve body, one end of the valve rod penetrates through the fixed seat and the valve body to be fixedly connected with the valve plate, a convex column with a non-circular structure is arranged at the other end of the valve rod, a power piece for driving the convex column to rotate is arranged on the fixed seat, the power piece comprises a rotating seat, a telescopic rod and a positioning piece, the rotating seat is rotatably arranged on the fixed seat, the rotating amplitude of the rotating seat is 90 degrees, the positioning piece is vertically and slidably arranged on the rotating seat, two clamping grooves matched with the positioning piece are formed in the fixed seat, one end of the telescopic rod is fixed on the rotating seat, and a clamping piece for limiting the positioning piece to be separated from the clamping grooves is further arranged on the telescopic rod.

Preferably, the setting element includes inserted post, V-arrangement fixture block, spring and I-shaped piece, I-shaped piece is connected between V-arrangement fixture block and inserted post, be provided with the mounting groove on the rotation seat, the setting element is located the mounting groove, the spring housing is established in the outside of inserted post, and both ends are contradicted with I-shaped piece and rotation seat respectively, fixture element one end is connected with the telescopic link, and the other end is with I-shaped piece complex concave structure.

Preferably, the fixing seat is provided with an arc-shaped pressing strip, the edge of the bottom of the rotating seat is provided with a convex strip, the convex strip is positioned on the inner side of the arc-shaped pressing strip, the rotating seat is provided with a convex part which is in conflict with two sides of the arc-shaped pressing strip, and the telescopic rod and the positioning piece are arranged on the convex part.

Preferably, two clamping grooves are arranged on two sides, close to the arc-shaped pressing strip, of each clamping groove, and one side, close to each other, of each clamping groove is an inclined surface.

Preferably, the telescopic rod comprises an outer rod and an inner rod, the outer rod and the protruding portion are fixed through a bolt, the inner rod is arranged in the outer rod in a sliding mode, one end of the inner rod is fixedly connected with the clamping piece, and the other end of the inner rod extends to the outer side of the outer rod and is provided with a pulling block.

Preferably, two rubber sealing sleeves mounted on the outer side of the valve rod are arranged on the inner side of the fixing seat, an air inflation cavity is formed between the two rubber sealing sleeves, and an air tap is arranged at the position of the fixing seat corresponding to the air inflation cavity.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up setting element, fixing base, rotation seat and telescopic link, the telescopic link can lengthen and shorten to increase valve rod pivoted moment, reach laborsaving effect, the telescopic link can control the state of setting element activity at flexible in-process, when rotating the rotation seat, the restriction to the setting element is removed to the telescopic link earlier, after the rotation seat rotates 90 for the butterfly valve is opened or is closed, shortens the telescopic link again in order to continue the activity of restriction setting element, makes the valve rod can not rotate because of by the maloperation.

Drawings

FIG. 1 is a schematic view of a butterfly valve in a butt clamp of the present utility model;

FIG. 2 is a cross-sectional view of a butterfly valve of the present utility model;

FIG. 3 is a schematic view of the structure of the valve body according to the present utility model;

FIG. 4 is a schematic view showing the internal structure of the rotary seat, the positioning member and the telescopic rod according to the present utility model;

FIG. 5 is a schematic view of a positioning member according to the present utility model;

reference numerals: 1. a valve plate; 2. a valve body; 3. a telescopic rod; 4. a protruding portion; 5. a rotating seat; 6. a convex column; 7. an arc pressing bar; 8. a fixing seat; 9. an air tap; 10. a valve stem; 11. an air-filling cavity; 12. a rubber sealing sleeve; 13. a clamping groove; 14. a convex strip; 15. a mounting groove; 16. an outer rod; 17. pulling the block; 18. an inner rod; 19. a positioning piece; 20. a clamping piece; 21. a V-shaped clamping block; 22. i-shaped blocks; 23. a spring; 24. and (5) inserting a column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, a butt-clamping butterfly valve comprises a valve body 2, a valve plate 1 and a valve rod 10, wherein a fixed seat 8 is arranged on the valve body 2, one end of the valve rod 10 penetrates through the fixed seat 8 and the valve body 2 to be fixedly connected with the valve plate 1, a convex column 6 with a non-circular structure is arranged at the other end of the valve rod, a power piece for driving the convex column 6 to rotate is arranged on the fixed seat 8, the power piece comprises a rotating seat 5, a telescopic rod 3 and a positioning piece 19, the rotating seat 5 is rotatably arranged on the fixed seat 8, the rotating amplitude of the rotating seat 5 is 90 degrees, the positioning piece 19 is vertically and slidably arranged on the rotating seat 5, two clamping grooves 13 matched with the positioning piece 19 are formed in the fixed seat 8, one end of the telescopic rod 3 is fixed on the rotating seat 5, and a clamping piece 20 for limiting the positioning piece 19 to be separated from the clamping grooves 13 is further arranged on the telescopic rod 3.

The locating piece 19 includes inserted post 24, V-arrangement fixture block 21, spring 23 and I-shaped piece 22, I-shaped piece 22 connects between V-arrangement fixture block 21 and inserted post 24, be provided with mounting groove 15 on rotating seat 5, the locating piece 19 is located mounting groove 15, the spring 23 cover is established in the outside of inserted post 24, and both ends are contradicted with I-shaped piece 22 and rotating seat 5 respectively, clamping piece 20 one end is connected with telescopic link 3, the other end is with I-shaped piece 22 complex concave structure, when the one end of clamping piece 20 inserts I-shaped piece 22, V-arrangement fixture block 21 unable upward movement and break away from draw-in groove 13, so make rotating seat 5 and fixing base 8 can not take place relative rotation, and when clamping piece 20 does not restrict I-shaped piece 22, V-shaped fixture block 21 can slide along draw-in groove 13 and upwards promote I-shaped piece 22 compression spring 23, so the accessible promotes telescopic link 3 and drives rotating seat 5 and rotates, thereby make valve plate 1 rotate on fixing base 8 be provided with arc 7, rotating seat 5 bottom edge is provided with sand grip 14, the bead 14 is located on the inboard, the clamping piece 7 is located in the position of 7 and is provided with two opposite arc-shaped 7 and can be close to two opposite sides of arc-shaped 13, can slide between two opposite direction 7 and two opposite direction 13, can slide along the arc-shaped groove 13, and two opposite side 13 are rotated to the arc-shaped fixture block 7, and can be rotated by two opposite side 13, and two opposite side 13 can slide to the arc-shaped fixture block 13, and can be rotated and can slide along the arc 7, and can slide.

The telescopic rod 3 includes outer pole 16 and interior pole 18, outer pole 16 passes through the bolt with bulge 4 to be fixed, interior pole 18 slides and sets up in outer pole 16, its one end and fastener 20 fixed connection, the other end extends to the outside of outer pole 16 and is provided with pulls out movable block 17, through pulling out movable block 17, make interior pole 18 stretch out from outer pole 16, telescopic rod 3 is prolonged, in this way, when driving valve rod 10 through telescopic rod 3 and rotate, can reach laborsaving effect, the inboard of fixing base 8 is provided with two rubber seal cover 12 that install in the valve rod 10 outside, have between two rubber seal cover 12 and aerify chamber 11, the fixing base 8 corresponds the position of aerifing chamber 11 and is provided with air cock 9, utilize air cock 9 to aerify gas in the chamber 11, make the atmospheric pressure in the chamber 11 increase, and let rubber seal cover 12 produce deformation, thereby make valve rod 10 and fixing base 8 junction have good leakproofness.

Working principle: when the butterfly valve needs to be opened, the pulling block 17 is pulled outwards firstly to enable the inner rod 18 to extend out of the outer rod 16, the telescopic rod 3 is lengthened, the clamping piece 20 is separated from the I-shaped block 22, therefore, the V-shaped clamping block 21 cannot be limited to slide along the inclined plane of the clamping groove 13, the telescopic rod 3 is pushed to rotate afterwards, the rotating moment of the valve rod 10 can be increased by the stretched telescopic rod 3, the operation is more labor-saving, after the rotating seat 5 rotates 90 degrees, the protruding part 4 bumps into the arc-shaped pressing strip 7 and cannot rotate continuously, at the moment, the V-shaped clamping block 21 is just located in the other clamping groove 13, then the inner rod 18 is pushed into the outer rod 16 again, the telescopic rod 3 is shortened, one end of the clamping piece 20 is continuously inserted into the I-shaped block 22, and when the telescopic rod 3 is pushed reversely again, the V-shaped clamping block 21 cannot be separated from the clamping groove 13, the valve rod 10 cannot rotate, the inner rod 18 must be pulled out of the outer rod 16, and the valve rod 10 cannot rotate due to misoperation.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a butt clamp butterfly valve, includes valve body (2), valve plate (1) and valve rod (10), its characterized in that, be provided with fixing base (8) on valve body (2), fixing base (8) and valve body (2) and valve plate (1) fixed connection are passed to one end of valve rod (10), and the other end has projection (6) of non-circular structure, be provided with drive projection (6) pivoted power piece on fixing base (8), power piece includes rotation seat (5), telescopic link (3) and setting element (19), rotation seat (5) rotate and install on fixing base (8), and the rotation range of rotation seat (5) is 90, setting element (19) perpendicular slidable mounting is on rotation seat (5), be provided with two draw-in grooves (13) with setting element (19) complex on fixing base (8), the one end of telescopic link (3) is fixed on rotation seat (5), and still is provided with on telescopic link (3) and is used for restricting setting element (19) to break away from fastener (20) of draw-in groove (13).

2. The butt-clamping butterfly valve according to claim 1, wherein the positioning piece (19) comprises a plug post (24), a V-shaped clamping block (21), a spring (23) and an I-shaped block (22), the I-shaped block (22) is connected between the V-shaped clamping block (21) and the plug post (24), the rotating seat (5) is provided with a mounting groove (15), the positioning piece (19) is located in the mounting groove (15), the spring (23) is sleeved on the outer side of the plug post (24), two ends of the positioning piece respectively collide with the I-shaped block (22) and the rotating seat (5), one end of the clamping piece (20) is connected with the telescopic rod (3), and the other end of the clamping piece is of a concave structure matched with the I-shaped block (22).

3. The butt-clamping butterfly valve according to claim 2, wherein the fixing seat (8) is provided with an arc-shaped pressing strip (7), the bottom edge of the rotating seat (5) is provided with a convex strip (14), the convex strip (14) is located on the inner side of the arc-shaped pressing strip (7), the rotating seat (5) is provided with protruding parts (4) which are abutted against two sides of the arc-shaped pressing strip (7), and the telescopic rod (3) and the positioning piece (19) are installed on the protruding parts (4).

4. A butterfly valve according to claim 3, characterized in that two clamping grooves (13) are arranged close to two sides of the arc-shaped depression bar (7), and the sides of the two clamping grooves (13) close to each other are inclined surfaces.

5. The butt-clamp butterfly valve according to claim 1, characterized in that the telescopic rod (3) comprises an outer rod (16) and an inner rod (18), the outer rod (16) and the protruding part (4) are fixed through a bolt, the inner rod (18) is slidably arranged in the outer rod (16), one end of the inner rod is fixedly connected with the clamping piece (20), and the other end of the inner rod extends to the outer side of the outer rod (16) and is provided with a pulling block (17).

6. The butt-clamping butterfly valve according to claim 1, wherein two rubber sealing sleeves (12) mounted on the outer side of the valve rod (10) are arranged on the inner side of the fixed seat (8), an air inflation cavity (11) is formed between the two rubber sealing sleeves (12), and an air tap (9) is arranged at a position of the fixed seat (8) corresponding to the air inflation cavity (11).