CN211039704U

CN211039704U - Bidirectional self-pressure butterfly valve

Info

Publication number: CN211039704U
Application number: CN201921435490.2U
Authority: CN
Inventors: 郭增应
Original assignee: Beijing Yichuang Chaoda Technology Development Co ltd
Current assignee: Beijing Yichuang Chaoda Technology Development Co ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-07-17
Anticipated expiration: 2029-08-31

Abstract

The utility model relates to a butterfly valve technical field, and a two-way autogenous pressure formula butterfly valve is disclosed, which comprises a valve body, the outer upper end fixedly connected with connecting block of valve body, rotate through the bearing in the valve body and be connected with the dwang, the upper end of dwang passes valve body and connecting block in proper order and upwards extends, fixedly connected with and valve body assorted case on the dwang is located the pole wall in the valve body, the circular recess has been seted up in the connecting block, sliding connection has the disc in the circular recess, the dwang passes disc center department and sets up, and rather than fixed connection, the fixed slot has been seted up to the symmetry on the disc, be annular array ground and seted up a plurality of draw-in groove on the position that the circular recess corresponds the fixed slot, the tank bottom fixedly. The utility model discloses make long-term the back of using, the sealing performance of case can not reduce, has extended the life of butterfly valve, and reliable and stable.

Description

Bidirectional self-pressure butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a two-way autogenous pressure formula butterfly valve.

Background

In the prior art, no matter the self-pressing butterfly valve is a central line, a single eccentric, a double eccentric, a triple eccentric and a single eccentric, when the self-pressing butterfly valve needs to be opened, the handle is rotated in a forward direction, and when the self-pressing butterfly valve is closed, the handle is rotated in a reverse direction, when the valve core of the butterfly valve is closed, one side of the valve core is always stressed, after the self-pressing butterfly valve is used for a long time, the sealing performance of the valve core is reduced, and the service life of the butterfly valve is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the case of butterfly valve among the prior art when closing, always one side atress, long-term use back, then can lead to the sealing performance of case to reduce for the lower problem of life of butterfly valve, and the two-way autogenous pressure formula butterfly valve that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bidirectional self-pressing butterfly valve comprises a valve body, wherein the upper end outside the valve body is fixedly connected with a connecting block, a rotating rod is rotatably connected in the valve body through a bearing, the upper end of the rotating rod sequentially penetrates through the valve body and the connecting block and extends upwards, a valve core matched with the valve body is fixedly connected on a rod wall of the rotating rod in the valve body, a circular groove is formed in the connecting block, a circular disc is connected in the circular groove in a sliding manner, the rotating rod penetrates through the center of the circular disc and is fixedly connected with the circular disc, fixing grooves are symmetrically formed in the circular disc, a plurality of clamping grooves are formed in the circular groove in an annular array manner corresponding to the fixing grooves, a spring is fixedly connected at the bottom of the fixing groove, the other end of the spring is fixedly connected with a fixing block in a sliding manner with the fixing groove, one end, the one end that the spring was kept away from to the fixed block is the slope setting.

Preferably, the limiting groove has been seted up to the symmetry on the cell wall of fixed slot, sliding connection has the stopper in the limiting groove, the one end that the limiting groove tank bottom was kept away from to the stopper passes the notch of limiting groove and outwards extends, and fixed connection is on the corresponding lateral wall of fixed block.

Preferably, the one end that the fixed block is close to the spring has seted up stable groove, sliding connection has the stabilizer bar in the stable groove, the notch and the spring and fixed connection of stable groove tank bottom are passed in proper order to the one end that stable groove tank bottom was kept away from to the stabilizer bar on the corresponding position of fixed groove tank bottom.

Preferably, the upper end of the rotating rod is fixedly connected with a rotating handle.

Preferably, a sealing ring is installed on the valve core, and the sealing ring is made of rubber.

Preferably, the outer surface of the valve body is coated with an anticorrosive coating.

Compared with the prior art, the utility model provides a two-way autogenous pressure formula butterfly valve possesses following beneficial effect:

1. this two-way autogenous pressure formula butterfly valve, through setting up the valve body, the connecting block, the dwang, a valve core, the circular slot, the disc, the fixed slot, the draw-in groove, spring and fixed block, when the butterfly valve is opened to needs, forward rotation dwang, the dwang drives the case and rotates, and then open the butterfly valve, the dwang has also driven the disc at the circular slot internal rotation simultaneously, under the effect on inclined plane on the fixed block, the fixed block can be in the indentation fixed slot, and then can forward rotation disc, make the unable antiport of disc, and then make the case open or when closing at every turn, be the both sides atress respectively, the condition with one side atress can not appear, make long-term use after, the sealing performance of case can not reduce.

2. This two-way autogenous pressure formula butterfly valve, through setting up spacing groove and stopper, when the fixed block removed in the fixed slot, the fixed block drove stopper and spacing groove simultaneously and removed, and the spacing groove has played spacing effect to the stopper, and then makes the fixed block can not break away from in the fixed slot, lets the fixed block reliable and stable more.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make long-term the use back, the sealing performance of case can not reduce, has extended the life of butterfly valve, and reliable and stable.

Drawings

Fig. 1 is a schematic structural view of a bidirectional self-pressure butterfly valve provided by the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1 valve body, 2 connecting blocks, 3 dwang, 4 case, 5 circular grooves, 6 discs, 7 fixed slots, 8 draw-in grooves, 9 springs, 10 fixed blocks, 11 spacing grooves, 12 spacing blocks, 13 stabilizing grooves, 14 stabilizer bars, 15 rotation handles, 16 sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a bidirectional self-pressing butterfly valve comprises a valve body 1, a connecting block 2 is fixedly connected to the upper end outside the valve body 1, a rotating rod 3 is rotatably connected in the valve body 1 through a bearing, the upper end of the rotating rod 3 sequentially passes through the valve body 1 and the connecting block 2 and extends upwards, a valve core 4 matched with the valve body 1 is fixedly connected to the rod wall of the rotating rod 3 in the valve body 1, a circular groove 5 is formed in the connecting block 2, a disc 6 is slidably connected in the circular groove 5, the rotating rod 3 passes through the center of the disc 6 and is fixedly connected with the disc 6, fixing grooves 7 are symmetrically formed in the disc 6, a plurality of clamping grooves 8 are formed in the circular groove 5 in an annular array at positions corresponding to the fixing grooves 7, a spring 9 is fixedly connected to the bottom of the fixing groove 7, a fixing block 10 slidably connected with the fixing groove 7 is fixedly connected to the other end of the spring 9, spring 9 was kept away from to fixed block 10 one end is the slope setting, when the butterfly valve was opened to needs, positive rotation dwang 3, dwang 3 drives case 4 and rotates, and then open the butterfly valve, dwang 3 has also driven disc 6 at 5 internal rotations in circular slot simultaneously, under the effect on inclined plane on fixed block 10, fixed block 10 can be in indentation fixed slot 7, and then can positive rotation disc 6, make disc 6 unable antiport, and then make case 4 open at every turn or when closing, be the both sides atress respectively, the condition with the one side atress can not appear, make long-term use after, the sealing performance of case can not reduce, the life of butterfly valve has been extended.

Spacing groove 11 has been seted up to the symmetry on the cell wall of fixed slot 7, sliding connection has stopper 12 in the spacing groove 11, stopper 12 keeps away from the one end of 11 tank bottoms of spacing groove and passes the notch of spacing groove 11 and outwards extends, and fixed connection is on the corresponding lateral wall of fixed block 10, when fixed block 10 removed in fixed slot 7, fixed block 10 drives stopper 12 and moves with spacing groove 11 simultaneously, spacing groove 11 has played spacing effect to stopper 12, and then make fixed block 10 can not break away from in fixed slot 7, let fixed block 10 reliable and stable more.

The one end that fixed block 10 is close to spring 9 has seted up stable groove 13, and sliding connection has stabilizer bar 14 in stable groove 13, and the one end that stable groove 13 tank bottom was kept away from to stabilizer bar 14 passes the notch of stable groove 13 and spring 9 in proper order and fixed connection is on the corresponding position of fixed slot 7 tank bottom for fixed block 10 moves ground more stably.

The upper end fixedly connected with of dwang 3 rotates handle 15, is convenient for rotate dwang 3.

Install sealing washer 16 on the case 4, sealing washer 16 sets up for the rubber material for sealed effect is better.

The outer surface of the valve body 1 is coated with an anticorrosive coating, so that the valve body plays an anticorrosive role.

In the utility model, when the butterfly valve needs to be opened, the rotating rod 3 is rotated in the forward direction, the rotating rod 3 drives the valve core 4 to rotate, and then the butterfly valve is opened, and the rotating rod 3 also drives the disc 6 to rotate in the circular groove 5, under the action of the upper inclined plane of the fixed block 10, the fixed block 10 can be retracted into the fixed groove 7, and then the disc 6 can be rotated in the forward direction, so that the disc 6 can not rotate in the reverse direction, and further the valve core 4 can be opened or closed in each time, two sides are stressed, and the condition of the same side is not stressed, so that after long-term use, the sealing performance of the valve core can not be reduced, the service life of the butterfly valve is prolonged, when the fixed block 10 moves in the fixed groove 7, the fixed block 10 drives the limit block 12 to move with the limit groove 11, the limit groove 11 has a limiting effect on, the fixing block 10 is more stable and reliable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two-way autogenous pressure formula butterfly valve, includes valve body (1), its characterized in that, the outer upper end fixedly connected with connecting block (2) of valve body (1), rotate through the bearing in valve body (1) and be connected with dwang (3), the upper end of dwang (3) passes valve body (1) and connecting block (2) in proper order and upwards extends, dwang (3) are located fixedly connected with case (4) with valve body (1) assorted on the pole wall in valve body (1), circular recess (5) have been seted up in connecting block (2), sliding connection has disc (6) in circular recess (5), dwang (3) pass disc (6) center department and set up, and rather than fixed connection, fixed slot (7) have been seted up to the symmetry on disc (6), a plurality of draw-in groove (8) have been seted up with annular array on circular recess (5) correspond the position of fixed slot (7), the tank bottom fixedly connected with spring (9) of fixed slot (7), the other end fixedly connected with of spring (9) and fixed slot (7) sliding connection's fixed block (10), the one end that spring (9) were kept away from in fixed block (10) passes the notch of fixed slot (7) and extends to corresponding draw-in groove (8), the one end that spring (9) were kept away from in fixed block (10) is the slope setting.

2. The butterfly valve according to claim 1, wherein the groove wall of the fixing groove (7) is symmetrically provided with a limiting groove (11), the limiting groove (11) is slidably connected with a limiting block (12), and one end of the limiting block (12) far away from the groove bottom of the limiting groove (11) passes through the notch of the limiting groove (11) and extends outwards, and is fixedly connected to the corresponding side wall of the fixing block (10).

3. The butterfly valve of claim 1, wherein a stabilizing groove (13) is formed at an end of the fixed block (10) close to the spring (9), a stabilizer bar (14) is slidably connected in the stabilizing groove (13), and an end of the stabilizer bar (14) far away from the bottom of the stabilizing groove (13) sequentially passes through the notch of the stabilizing groove (13) and the spring (9) and is fixedly connected to a corresponding position of the bottom of the fixed groove (7).

4. A self-pressurizing bidirectional butterfly valve according to claim 1, wherein a rotary knob (15) is fixedly connected to an upper end of the rotary rod (3).

5. The butterfly valve according to claim 1, wherein a sealing ring (16) is mounted on the valve core (4), and the sealing ring (16) is made of rubber.

6. A bidirectional self-pressure butterfly valve according to claim 1, wherein an outer surface of the valve body (1) is coated with an anticorrosive coating.