CN210978550U

CN210978550U - Improved inclined butt-clamping butterfly valve

Info

Publication number: CN210978550U
Application number: CN201921657894.6U
Authority: CN
Inventors: 段方超; 戴均; 戴欣
Original assignee: Tianjin Longrun Kaida Valve Industry Co ltd
Current assignee: Tianjin Longrun Kaida Valve Industry Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-10
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses an improved generation oblique type is to pressing from both sides butterfly valve, including circular handle, the below welding of circular handle has first pivot, and the bottom fixed mounting of first pivot has reduction gear, reduction gear's outside cover is equipped with the transmission ring gear, and the bottom welding of transmission ring gear has the rolling disc, the outside cover of rolling disc is equipped with transmission shell, the positive welding of top of rolling disc has the bolt shell. The utility model discloses a be provided with reduction gear and transmission gear ring meshing and connect, and set up the tooth number on the reduction gear and be less than the tooth number on the transmission gear ring inner wall, through the drive ratio between reduction gear and the transmission gear ring, effectual reduction gear that makes drives the transmission gear ring and slowly rotates when rotating to make when rotating and opening, this improved generation is more accurate to opening and closing control of pressing from both sides the butterfly valve, has improved the device's accurate performance greatly.

Description

Improved inclined butt-clamping butterfly valve

Technical Field

The utility model relates to a to pressing from both sides butterfly valve equipment technical field specifically is an improved generation inclined type is to pressing from both sides butterfly valve.

Background

The butt clamp type butterfly valve is installed on a pipeline, a disc-shaped butterfly plate rotates around a central axis through rotation to control a valve for opening and closing fluid, the butt clamp type butterfly valve is simple in structure, small in size and light in weight and only comprises a few parts, operation is simple, the butt clamp type butterfly valve is widely installed on various pipelines to control fluid, a handle is directly connected with a valve plate through a rotating shaft at present, control of opening and closing of the valve by workers during rotation is not accurate enough, the valve plate of the existing butt clamp type butterfly valve is made of a whole metal, and leakage exists in use due to the fact that metal is not tightly attached, and therefore the improved oblique butt clamp type butterfly valve is provided for solving the problems and is accurate in control and not prone to leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oblique type of improved generation is to pressing from both sides butterfly valve to solve the present butterfly valve that the above-mentioned background art provided and have the valve open with closed control not accurate, and the problem that fluid leaked easily between the valve body.

In order to achieve the above object, the utility model provides a following technical scheme: an improved oblique butt-clamping butterfly valve comprises a circular handle, wherein a first rotating shaft is welded below the circular handle, a reduction gear is fixedly installed at the bottom of the first rotating shaft, a transmission gear ring is sleeved outside the reduction gear, a rotating disc is welded at the bottom of the transmission gear ring, a transmission shell is sleeved outside the rotating disc, a bolt shell is welded on the front side of the upper portion of the rotating disc, a bolt pull rod is inserted inside the bolt shell, a supporting spring is sleeved outside the bolt pull rod, a second rotating shaft is welded at the bottom of the rotating disc, a disc-shaped valve plate is fixedly installed outside the second rotating shaft, a supporting reed is fixedly inlaid in the outer side of the disc-shaped valve plate, an outer valve plate is welded outside the supporting reed, a filling rubber ring is filled between the disc-shaped valve plate and the outer valve plate, and a valve main body is attached to the outer side of the outer valve plate, and the left end and the right end of the valve main body are respectively welded with a connecting disc, one group of the connecting discs are provided with a sealing rubber ring in an inserted mode on the left side, and a protective ring is fixedly welded on the outer side of each connecting disc.

Preferably, welded tooth size is the same on the tooth in the reduction gear outside and the transmission ring gear inner wall, reduction gear passes through the meshing of tooth and the transmission ring gear design is meshing rotating structure, the tooth number of teeth on the reduction gear is far less than the tooth number of teeth on the transmission ring gear inner wall, the transmission shell design is upper and lower two parts, and the upper and lower two parts of transmission shell pass through bolt-up connection.

Preferably, the bolt shell and the bolt pull rod are designed to be of a sliding structure, one end of the supporting spring is supported on the bolt shell, the other end of the supporting spring is supported inside the bolt pull rod, and the outer wall of the first rotating shaft is uniformly provided with clamping grooves.

Preferably, the second rotating shaft is inserted in the valve main body, and the disc-shaped valve plate and the valve main body are designed into a rotating structure through the second rotating shaft.

Preferably, the outer valve plate is designed into a sliding structure through a supporting reed and the disc-shaped valve plate, and the size of the outer side of the outer valve plate is slightly larger than that of the inner wall of the valve main body.

Compared with the prior art, the beneficial effects of the utility model are that: the improved inclined butt-clamping butterfly valve is in meshed connection with the transmission gear ring through the reduction gear, the number of teeth on the reduction gear is smaller than that on the inner wall of the transmission gear ring, and the reduction gear is effectively driven to rotate slowly by the transmission ratio between the reduction gear and the transmission gear ring, so that the opening and closing control of the improved butt-clamping butterfly valve is more accurate when the butterfly valve is rotated and opened, and the accuracy of the butterfly valve is greatly improved;

the support reed is arranged to support and be connected between the outer valve plate and the disc-shaped valve plate, the size of the outer side of the outer valve plate is slightly larger than the size of the inner wall of the valve main body, and the elastic support performance of the support reed is utilized, so that when the valve is closed, the outer valve plate is extruded to be elastically deformed, the outer valve plate and the valve main body are favorably attached more tightly, and the sealing performance of the butterfly valve to fluid is improved.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is a schematic view of the structural connection front section of the disk-shaped valve plate, the supporting spring plate, the outer valve plate and the rubber packing ring of the present invention;

FIG. 3 is a schematic front view of the structure of the present invention;

FIG. 4 is a schematic side view of the structure of the present invention;

fig. 5 is a schematic side view of the structure of the present invention.

In the figure: 1. a circular grip; 2. a first rotating shaft; 3. a reduction gear; 4. a transmission gear ring; 5. rotating the disc; 6. a transmission housing; 7. a plug pin housing; 8. a bolt pull rod; 9. a support spring; 10. a second rotating shaft; 11. a disc-shaped valve plate; 12. a support spring plate; 13. an outer valve plate; 14. filling a rubber ring; 15. a valve body; 16. a connecting disc; 17. sealing the rubber ring; 18. a guard ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: an improved oblique butt-clamping butterfly valve comprises a circular handle 1, a first rotating shaft 2 is welded below the circular handle 1, a reduction gear 3 is fixedly installed at the bottom of the first rotating shaft 2, a transmission gear ring 4 is sleeved outside the reduction gear 3, a rotating disc 5 is welded at the bottom of the transmission gear ring 4, a transmission shell 6 is sleeved outside the rotating disc 5, teeth outside the reduction gear 3 are the same as teeth welded on the inner wall of the transmission gear ring 4 in size, the reduction gear 3 and the transmission gear ring 4 are designed to be in a meshing rotating structure through meshing of the teeth, the number of teeth on the reduction gear 3 is far smaller than that on the inner wall of the transmission gear ring 4, the transmission shell 6 is designed to be an upper part and a lower part, the upper part and the lower part of the transmission shell 6 are fixedly connected through bolts, when the butt-clamping butterfly valve needs to be closed or opened, a worker holds the circular handle 1 to rotate, so that the circular handle 1 rotates to drive the first rotating shaft 2 to rotate, the reduction gear 3 rotates under the drive of the first rotating shaft 2, the transmission gear ring 4 rotates along with the reduction gear 3 due to the meshing of the teeth, and the transmission gear ring 4 rotates slowly when the reduction gear 3 rotates due to the fact that the number of the teeth on the transmission gear ring 4 is larger than that of the teeth on the reduction gear 3, thereby more accurately controlling the opening angle of the valve, accurately controlling the flow of the fluid, greatly increasing the accurate performance of the device, because the transmission shell 6 is respectively provided with the upper part and the lower part which are fixedly connected through the bolts, when the reduction gear 3 and the transmission gear ring 4 in the transmission shell 6 need to be maintained, the bolt on the outer side of the transmission shell 6 is rotated to be loosened, the bolt is taken down, the transmission shell 6 can be opened, the operation is simple, and the maintenance is convenient.

The front side above the transmission shell 6 is welded with a bolt shell 7, a bolt pull rod 8 is inserted into the bolt shell 7, a supporting spring 9 is sleeved outside the bolt pull rod 8, the bolt shell 7 and the bolt pull rod 8 are designed into a sliding structure, one end of the supporting spring 9 is supported on the bolt shell 7, the other end of the supporting spring 9 is supported inside the bolt pull rod 8, clamping grooves are uniformly formed in the outer wall of the first rotating shaft 2, when the valve needs to be rotated, a worker can pull the bolt pull rod 8 outwards to enable the top end of the bolt pull rod 8 to be separated from the outer wall of the first rotating shaft 2 to obtain a clamping groove, so that the first rotating shaft 2 can be rotated in a loosening manner, under the condition of no stress, the bolt pull rod 8 is supported by the supporting spring 9, so that the top end of the bolt pull rod 8 is clamped in the clamping groove in the outer wall of the first rotating shaft 2, at the moment, the, make 2 rotations of first pivot under the effectual maloperation condition that has prevented, lead to the open mode of valve to change, prevent to take place the error, produce harmful effects.

The bottom welding of rolling disc 5 has second pivot 10, and the outside fixed mounting of second pivot 10 has disk valve plate 11, second pivot 10 is inserted and is established the inside of valve main part 15, disk valve plate 11 is the revolution mechanic through second pivot 10 with valve main part 15 design, when transmission ring gear 4 rotates, drive rolling disc 5 and rotate, under the drive of rolling disc 5, make second pivot 10 rotate, thereby drive the rotation of the disk valve plate 11 of welding in the second pivot 10 outside, control should open or close the butterfly valve of double-layered.

A supporting reed 12 is fixedly embedded on the outer side of the disc-shaped valve plate 11, an outer valve plate 13 is welded on the outer side of the supporting reed 12, a filling rubber ring 14 is filled between the disc-shaped valve plate 11 and the outer valve plate 13, a valve main body 15 is attached on the outer side of the outer valve plate 13, connecting discs 16 are welded on the left end and the right end of the valve main body 15, a sealing rubber ring 17 is inserted on the left side of one group of connecting discs 16, a protective ring 18 is fixedly welded on the outer side of the connecting discs 16, the outer valve plate 13 and the disc-shaped valve plate 11 are designed into a sliding structure through the supporting reed 12, the outer size of the outer valve plate 13 is slightly larger than the size of the inner wall of the valve main body 15, when the disc-shaped valve plate 11 rotates and is closed, the outer valve plate 13 is driven to rotate, when the outer valve plate 13 is attached on the inner wall of the valve main body 15, the sealing tightness of this butterfly valve has been improved greatly, during the installation, sealing rubber ring 17 receives the centre gripping of external pipeline and connection pad 16 and warp, make sealing rubber ring 17 fill in the junction of external pipeline and connection pad 16, the effectual leakproofness that has improved, prevent to leak, set up the side parcel that protection circle 18 will sealing rubber ring 17, prevent sealing rubber ring 17 and expose in external environment rainwater, effectually prevent that rainwater from corroding sealing rubber ring 17, lead to sealing rubber ring 17 to damage, the device's life has been improved greatly.

The working principle is as follows: when the butterfly valve is installed, a worker connects the left end and the right end of the pair of butterfly valves with an external pipeline, so that the connecting end of the pipeline is clamped inside the protective ring 18, the protruding position of the left end of the sealing rubber ring 17 is clamped inside the pipeline, the connecting end of the pipeline is fixedly connected with the connecting disc 16 through the fastening bolt, the sealing rubber ring 17 is tightly clamped between the connecting end of the pipeline and the connecting disc 16, the sealing rubber ring 17 is extruded and deformed due to extrusion force, a gap between the connecting end of the pipeline and the connecting disc 16 is filled, fluid is prevented from leaking out from the connecting position, the protective ring 18 wraps the sealing rubber ring 17, the sealing rubber ring 17 is prevented from being damaged due to erosion of external environment rainwater, and the service life of the butterfly valve is prolonged;

when the butterfly valve works, when the pair of butterfly valves needs to be closed, a worker pulls the bolt pull rod 8 outwards to enable the top end of the bolt pull rod 8 to be separated from a clamping groove formed in the outer wall of the first rotating shaft 2, then the worker holds the circular handle 1 to rotate, the circular handle 1 drives the reduction gear 3 welded at the bottom of the first rotating shaft 2 to rotate through the first rotating shaft 2, under the meshing of teeth, the transmission gear ring 4 rotates along with the reduction gear 3, so that the second rotating shaft 10 welded at the bottom of the rotating disc 5 rotates, the disc-shaped valve plate 11 fixedly welded at the outer side of the second rotating shaft 10 rotates, at the moment, the butterfly valve is closed through rotation and is influenced by extrusion of the valve main body 15, the outer valve plate 13 generates slight elastic deformation, the outer valve plate 13 is tightly attached to the valve main body 15, the butterfly valve is tightly closed, and similarly, when the butterfly valve needs to be opened, the circular handle 1, under the rotation of the gear rotating shaft, the disc-shaped valve plate 11 rotates to open;

when needs are maintained this valve, the staff uses the spanner to become flexible the fastening bolt in the 6 outsides of transmission shell and takes off, can open the upper and lower two parts of transmission shell 6, carries out maintenance, easy operation convenience to the inside reduction gear 3 of transmission shell 6 and transmission ring gear 4.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Claims

1. The utility model provides an oblique type of improved generation butt clamp butterfly valve, includes circular handle (1), its characterized in that: the lower portion of the round handle (1) is welded with a first rotating shaft (2), the bottom of the first rotating shaft (2) is fixedly provided with a reduction gear (3), the outer side of the reduction gear (3) is sleeved with a transmission gear ring (4), the bottom of the transmission gear ring (4) is welded with a rotating disc (5), the outer side of the rotating disc (5) is sleeved with a transmission shell (6), the top of the rotating disc (5) is welded with a bolt shell (7), the inside of the bolt shell (7) is inserted with a bolt pull rod (8), the outer side of the bolt pull rod (8) is sleeved with a support spring (9), the bottom of the rotating disc (5) is welded with a second rotating shaft (10), the outer side of the second rotating shaft (10) is fixedly provided with a disc-shaped valve plate (11), the outer side of the disc-shaped valve plate (11) is fixedly embedded with a support reed (12), and the outer side of the support reed (12), packing rubber circle (14) have been filled between disk valve plate (11) and outer valve plate (13), the outside laminating of outer valve plate (13) has valve main part (15), and both ends all weld connection pad (16) about valve main part (15), and wherein a set of sealed rubber circle (17) have been inserted in the left side of connection pad (16), the fixed welding in outside of connection pad (16) has guard ring (18).

2. The improved inclined butt-clamping butterfly valve according to claim 1, wherein: welded tooth size is the same on the tooth in reduction gear (3) outside and transmission ring gear (4) inner wall, reduction gear (3) design for meshing rotating-structure through the meshing of tooth and transmission ring gear (4), the tooth number of teeth on reduction gear (3) is far less than the tooth number of teeth on transmission ring gear (4) inner wall, transmission shell (6) design is upper and lower two parts, and the upper and lower two parts of transmission shell (6) pass through bolt-up connection.

3. The improved inclined butt-clamping butterfly valve according to claim 1, wherein: bolt shell (7) and bolt pull rod (8) design are sliding construction, the one end of supporting spring (9) is supported on bolt shell (7), and the other end of supporting spring (9) supports the inside at bolt pull rod (8), the draw-in groove has evenly been seted up on the outer wall of first pivot (2).

4. The improved inclined butt-clamping butterfly valve according to claim 1, wherein: the second rotating shaft (10) is inserted in the valve main body (15), and the disc-shaped valve plate (11) and the valve main body (15) are designed into a rotating structure through the second rotating shaft (10).

5. The improved inclined butt-clamping butterfly valve according to claim 1, wherein: the outer valve plate (13) is designed into a sliding structure through the supporting spring (12) and the disc-shaped valve plate (11), and the size of the outer side of the outer valve plate (13) is slightly larger than that of the inner wall of the valve main body (15).