CN210461721U

CN210461721U - Mechanically encrypted flange butterfly valve

Info

Publication number: CN210461721U
Application number: CN201921522554.2U
Authority: CN
Inventors: 陈金钻
Original assignee: Benxing Valve Manufacturing Co ltd
Current assignee: Benxing Valve Manufacturing Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-05-05
Anticipated expiration: 2029-09-12

Abstract

The utility model belongs to the technical field of the butterfly valve technique and specifically relates to a mechanical encryption flange butterfly valve, which comprises a valve body, be equipped with the valve plate that matches with it cross sectional shape in the valve body, valve plate and valve rod fixed connection, the valve rod pass on the valve body outer wall the connecting cylinder of connecting and with the inner wall sliding fit of connecting cylinder, the upper end of valve rod is connected perpendicularly with the one end of holding rod, the middle part of holding rod is connected with the depression bar through rotating coupling mechanism, the one end of depression bar is connected with the briquetting, fixedly connected with locking lever on the briquetting, the one end outer fringe that the valve body was kept away from to the connecting cylinder is connected with coaxial spacing dish with it perpendicularly, the utility model discloses can improve the restriction of opening the butterfly valve, reach the purpose that prevents.

Description

Mechanically encrypted flange butterfly valve

Technical Field

The utility model relates to a butterfly valve field especially relates to a flange butterfly valve is encrypted to machinery.

Background

The butterfly valve has simple structure, small volume and light weight, and is composed of a few parts. And the valve can be quickly opened and closed only by rotating 90 degrees, the operation is simple, and meanwhile, the valve has good fluid control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. Any person can easily operate the butterfly valve in the prior art, and the safety of the butterfly valve at some important positions cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor safety in the prior art, and providing a mechanical encryption flange butterfly valve.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a mechanical encryption flange butterfly valve comprises a valve body, wherein a valve plate matched with the valve body in cross section shape is arranged in the valve body, the valve plate is fixedly connected with a valve rod, the valve rod penetrates through a connecting cylinder connected to the outer wall of the valve body and is in sliding fit with the inner wall of the connecting cylinder, the upper end of the valve rod is vertically connected with one end of a holding rod, the middle part of the holding rod is connected with a pressing rod through a rotating connecting mechanism, one end of the pressing rod is connected with a pressing block, a locking rod is fixedly connected onto the pressing block, the outer edge of one end, far away from the valve body, of the connecting cylinder is vertically connected with a limiting disc coaxial with the connecting cylinder, the edge of the limiting disc is provided with limiting holes in an annular array mode around the axis of the limiting disc, the locking rod is inserted into one limiting hole, the end of the pressing rod is connected with a second locking plate, the locking holes of the second locking plate and the first locking plate are locked by a padlock.

Preferably, the rotation connecting mechanism includes the mounting panel, the tip fixedly connected with pivot of mounting panel, the outside cover of pivot is equipped with the adapter sleeve of being connected with it rotation, the middle part of depression bar is equipped with the crooked flexion to the holding rod, adapter sleeve and flexion fixed connection.

Preferably, a spring is fixedly connected between one end of the pressure rod close to the pressing block and the holding rod, and the spring is in a stretching state.

Preferably, the end parts of the holding rod and the pressure rod are sleeved with rubber anti-slip sleeves, and anti-slip lines are arranged outside the anti-slip sleeves.

Preferably, the two end faces of the valve body are connected with connecting plates, connecting holes are formed in the connecting plates in a surrounding mode, a rib plate is connected between the two connecting plates and is vertically and fixedly connected with the outer wall of the valve body, and an annular sealing surface matched with the edge of the valve plate is arranged on the inner wall of the valve body.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the valve body valve plate has been set up, break-make through the rotatory valve body that can control of valve plate, realize the original function of butterfly valve, the valve plate is connected with the valve rod, and the valve rod is connected with the holding rod, can conveniently rotate the valve rod through grabbing the holding rod, thereby open the valve body, the depression bar has been set up on the holding rod, the tip of depression bar has set up the briquetting, connect the locking lever on the briquetting, the locking lever inserts spacing downthehole on the spacing dish of connecting cylinder end connection, cooperation through locking lever and spacing hole, can restrict the rotation of holding rod, first locking plate and second lockplate have been set up simultaneously respectively with holding rod and depression bar fixed connection, the locking hole through the padlock with first locking plate and the setting of second lockplate tip can restrict the rotation of holding rod, thereby reach the purpose that prevents the accident of valve and open.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of the holding rod of the present invention.

In the figure: the valve comprises a valve body 1, a connecting cylinder 2, a limiting disc 3, a limiting hole 4, a valve rod 5, a holding rod 6, a spring 7, a pressure rod 8, a valve plate 9, a sealing surface 10, a connecting sleeve 11, a padlock 12, a bending part 13, a rotating shaft 14, a mounting plate 15, a first locking plate 16, a locking hole 17, a second locking plate 18, a pressing block 19, a locking rod 20, a rib plate 21, a connecting hole 22 and a connecting plate 23.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

A mechanical encryption flange butterfly valve as shown in fig. 1-3, including valve body 1, be equipped with the valve plate 9 that matches with its cross sectional shape in the valve body 1, valve plate 9 and valve rod 5 fixed connection, valve rod 5 pass connecting cylinder 2 of being connected on the valve body 1 outer wall and with the inner wall sliding fit of connecting cylinder 2, the upper end of valve rod 5 and the one end mutually perpendicular and fixed connection of holding rod 6, the middle part of holding rod 6 is connected with depression bar 8 through rotating coupling mechanism, rotating coupling mechanism includes mounting panel 15, the tip fixedly connected with pivot 14 of mounting panel 15, the outside cover of pivot 14 is equipped with the adapter sleeve 11 of being connected with it in rotation, the middle part of depression bar 8 is equipped with the crooked flexion 13 to holding rod 6, adapter sleeve 11 and flexion 13 fixed connection. The bent portion 13 keeps the both ends of the pressing rod 8 spaced from the grip 6, thereby facilitating the simultaneous grasping of the grip 6 and the pressing rod 8 to rotate the pressing rod 8 about the rotation shaft 14.

One end of the pressure lever 8 is connected with a pressure block 19, the pressure block 19 is fixedly connected with a locking rod 20, the outer edge of one end, far away from the valve body 1, of the connecting cylinder 2 is vertically connected with a limiting disc 3 coaxial with the pressure block, limiting holes 4 are annularly arrayed around the axis of the limiting disc 3, the locking rod 20 is inserted into one limiting hole 4, the end of the pressure lever 8 is connected with a second locking plate 18, the end of the holding rod 6 is connected with a first locking plate 16, the end parts of the second locking plate 18 and the first locking plate 16 are both provided with locking holes 17, and the second locking plate 18 and the locking holes 17 of the first locking plate 16 are locked through a padlock 12. Through the cooperation of locking lever 20 and spacing hole 4, can inject the rotation of holding rod 6 to the opening of restriction valve body 1, spacing hole 4 annular array is on spacing dish 3, conveniently makes valve plate 9 be in different open mode through going into locking lever 20 into different spacing holes 4. The first locking plate 16 and the second locking plate 18 can be locked through the padlock 12, the distance between the end parts of the pressing rod 8 and the holding rod 6 can be limited through the first locking plate 16 and the second locking plate 18, the locking rod 20 cannot be separated from the limiting hole 4, the purpose of safe locking is achieved, and the valve body 1 is prevented from being opened by irrelevant people.

A spring 7 is fixedly connected between one end of the pressure rod 8 close to the pressing block 19 and the holding rod 6, and the spring 7 is in a stretching state. The end parts of the holding rod 6 and the pressure rod 8 are sleeved with rubber anti-slip sleeves, and anti-slip lines are arranged outside the anti-slip sleeves. The two end faces of the valve body 1 are fixedly connected with connecting plates 23, connecting holes 22 are formed in the connecting plates 23 in an encircling mode, rib plates 21 are connected between the two connecting plates 23, the rib plates 21 are fixedly connected with the outer wall of the valve body 1 in a perpendicular mode, and the inner wall of the valve body 1 is provided with an annular sealing surface 10 matched with the edge of the valve plate 9. The spring 7 is used for providing a pulling force, so that the pressing block 19 presses on the bottom surface of the limiting disc 3, and the locking rod 20 is kept matched with the limiting hole 4.

The working principle is as follows: the valve plate 9 in the valve body 1 controls the opening and closing of the valve body 1, the valve plate 9 is rotated by rotating the holding rod 6, the compression rod 8 is rotatably connected with the holding rod 6, the end part of the compression rod 8 is matched with the limiting hole 4 on the limiting disc 3 through the locking rod 20, the locking rod 20 can be separated from the limiting hole 4 to rotate the holding rod 6 by pressing the compression rod 8, but the rotation of the compression rod 8 is limited by the first locking plate 16, the second locking plate 18 and the padlock 12, so that the butterfly valve at a key position is prevented from being opened by an unrelated person.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The mechanical encryption flange butterfly valve comprises a valve body (1), wherein a valve plate (9) matched with the valve body in cross section shape is arranged in the valve body (1), the valve plate (9) is fixedly connected with a valve rod (5), the valve rod (5) penetrates through a connecting cylinder (2) connected to the outer wall of the valve body (1) and is in sliding fit with the inner wall of the connecting cylinder (2), the mechanical encryption flange butterfly valve is characterized in that the upper end of the valve rod (5) is vertically connected with one end of a holding rod (6), the middle part of the holding rod (6) is connected with a compression rod (8) through a rotating connecting mechanism, one end of the compression rod (8) is connected with a pressing block (19), the pressing block (19) is fixedly connected with a locking rod (20), the outer edge of one end, far away from the valve body (1), of the connecting cylinder (2) is vertically connected with a limiting disc (3) coaxial with the outer edge, the edge of, the locking rod (20) is inserted into one limiting hole (4), the end of the pressing rod (8) is connected with a second locking plate (18), the end of the holding rod (6) is connected with a first locking plate (16), the end of the second locking plate (18) and the end of the first locking plate (16) are both provided with locking holes (17), and the second locking plate (18) and the locking holes (17) of the first locking plate (16) are locked through a padlock (12).

2. The mechanical encryption flange butterfly valve according to claim 1, wherein the rotary connection mechanism comprises a mounting plate (15), a rotary shaft (14) is fixedly connected to an end of the mounting plate (15), a connecting sleeve (11) rotatably connected to the rotary shaft (14) is sleeved outside the rotary shaft (14), a bending portion (13) bent towards the holding rod (6) is arranged in the middle of the pressing rod (8), and the connecting sleeve (11) is fixedly connected to the bending portion (13).

3. The mechanical encryption flange butterfly valve according to claim 1, characterized in that a spring (7) is fixedly connected between one end of the pressure rod (8) close to the pressing block (19) and the holding rod (6), and the spring (7) is in a stretching state.

4. The mechanical encryption flange butterfly valve of claim 1, wherein the holding rod (6) and the pressing rod (8) are sleeved with rubber anti-slip sleeves, and anti-slip lines are arranged outside the anti-slip sleeves.

5. A mechanically encrypted flange butterfly valve according to claim 1, wherein two end faces of the valve body (1) are connected with connecting plates (23), the connecting plates (23) are surrounded by connecting holes (22), a rib plate (21) is connected between the two connecting plates (23), the rib plate (21) is vertically and fixedly connected with the outer wall of the valve body (1), and the inner wall of the valve body (1) is provided with an annular sealing surface (10) which is matched with the edge of the valve plate (9).