阅读说明：本技术 一种蝶阀锁合装置 (Butterfly valve locking device ) 是由 郭先宇 于 2020-11-12 设计创作，主要内容包括：本发明涉及发电厂技术领域,尤其是指一种蝶阀锁合装置,其包括第一钢绳、第二钢绳、设置于所述第二钢绳的连接件、设置于所述连接件和第一钢绳之间的锁合组件,所述第一钢绳设置有固定套,所述连接件设置有供所述第一钢绳穿过的连接孔；所述锁合组件用于固定所述第一钢绳。通过本装置,当蝶阀失去动力源之后,在循环水的巨大压力下,蝶阀不易会误开或者误关,可以保证循环水系统的正常运行。(The invention relates to the technical field of power plants, in particular to a butterfly valve locking device which comprises a first steel rope, a second steel rope, a connecting piece arranged on the second steel rope, and a locking assembly arranged between the connecting piece and the first steel rope, wherein the first steel rope is provided with a fixed sleeve, and the connecting piece is provided with a connecting hole for the first steel rope to pass through; the locking assembly is used for fixing the first steel rope. Through this device, after the butterfly valve loses the power supply, under the huge pressure of circulating water, the butterfly valve is difficult for can the mistake open or the mistake is closed, can guarantee circulating water system's normal operating.)

1. A butterfly valve locking device is characterized in that: the method comprises the following steps:

the first steel rope is provided with a fixed sleeve;

a second steel cord;

the connecting piece is arranged on the second steel rope and provided with a connecting hole for the first steel rope to pass through;

and the locking assembly is arranged between the connecting piece and the first steel rope and is used for fixing the first steel rope.

2. A butterfly valve closure according to claim 1, in which: the locking assembly comprises:

the first locking piece is sleeved on the first steel rope and is in sliding fit with the connecting hole, and first threads are arranged on the outer wall of the first locking piece;

rotate set up in second locking piece on the connecting piece, the outer wall of second locking piece is provided with the second screw thread, first locking piece with the cooperation of second locking piece meshing rotates the second locking piece enables first locking piece for connecting hole round trip movement.

3. A butterfly valve closure according to claim 2, in which: the first locking piece is kept away from the one end of fixed cover is provided with anti-skidding piece, anti-skidding piece cover is established on the first steel cable, the external diameter of anti-skidding piece is towards keeping away from the direction crescent of fixed cover, deformation breach has been seted up along the axial to anti-skidding piece, first locking piece is kept away from the one end of fixed cover be provided with anti-skidding piece outer wall butt complex chute.

4. A butterfly valve closure according to claim 3, in which: the first steel rope is sleeved with a plurality of first locking pieces.

5. A butterfly valve closure according to claim 2, in which: the second locking piece is provided with a first gear, the connecting piece rotatably bears a second gear, and the first gear is in meshed connection with the second gear; the second gear is provided with a rotating shaft, and the end part of the rotating shaft is provided with a rotating groove.

6. A butterfly valve closure according to claim 2, in which: the connecting piece comprises a first sleeve pipe part and a second sleeve pipe part which are arranged in parallel, the connecting hole is positioned in the first sleeve pipe part, and the second sleeve pipe part is used for fixing the second steel rope; the first sleeve pipe part is axially provided with a mounting groove communicated with the connecting hole, and the width of the mounting groove is larger than the diameter of the first steel rope and smaller than the outer diameter of the first locking part.

7. A butterfly valve closure according to claim 1, in which: and a hook is arranged at one end of the second steel rope, which is far away from the connecting piece.

8. A butterfly valve closure according to claim 1, in which: the butterfly valve locking device further comprises a guide piece, the guide piece is integrally arranged in a U shape, a guide groove in sliding fit with the first steel rope is formed in the outer side of the guide piece, and a guide roller is arranged in the guide groove in a rotating mode.

9. A butterfly valve closure according to any of claims 1 to 8, in which: the first steel rope is folded into a U shape, the fixed sleeve is formed at the closed end of the first steel rope, and the two ends of the first steel rope are connected with the second steel rope.

10. A butterfly valve closure according to claim 9, in which: the first steel rope is provided with an auxiliary rope, and two ends of the auxiliary rope are respectively fixed at two ends of the fixed sleeve.

Technical Field

The invention relates to the technical field of power plants, in particular to a butterfly valve locking device.

Background

The circulating water pump is an essential important auxiliary device in the production process of a thermal power plant and a nuclear power plant, wherein the reliability of a hydraulic control butterfly valve at the outlet of the circulating water pump is important for ensuring the normal operation of a circulating water system.

At present, the butterfly valve of the outlet of the circulating water pump of a part of domestic power plants is large in size, the diameter of the butterfly valve exceeds 2 meters, the butterfly valve can only be driven by hydraulic oil, and when an oil system needs to be overhauled, a power source of the butterfly valve is closed. However, after the butterfly valve loses the power source, the butterfly valve may be opened or closed by mistake under the huge pressure of the circulating water, which affects the normal operation of the circulating water system.

Disclosure of Invention

The invention provides a butterfly valve locking device, which solves the technical problem that when a butterfly valve loses a power source, the butterfly valve is opened or closed by mistake under the huge pressure of circulating water, so that the normal operation of a circulating water system is influenced.

In order to solve the technical problems, the invention adopts the following technical scheme:

a butterfly valve closure, comprising:

the first steel rope is provided with a fixed sleeve;

a second steel cord;

the connecting piece is arranged on the second steel rope and provided with a connecting hole for the first steel rope to pass through;

and the locking assembly is arranged between the connecting piece and the first steel rope and is used for fixing the first steel rope.

Further, the locking assembly comprises:

the first locking piece is sleeved on the first steel rope and is in sliding fit with the connecting hole, and first threads are arranged on the outer wall of the first locking piece;

rotate set up in the second locking piece of connecting piece, the outer wall of second locking piece is provided with the second screw thread, first locking piece with the cooperation of second locking piece meshing rotates the second locking piece enables first locking piece for connecting hole round trip movement.

Further, first locking piece is kept away from the one end of fixed cover is provided with anti-skidding piece, anti-skidding piece cover is established on the first steel cable, the external diameter of anti-skidding piece is towards keeping away from the direction crescent of fixed cover, anti-skidding piece has seted up deformation breach along the axial, first locking piece is kept away from the one end of fixed cover be provided with anti-skidding piece outer wall butt complex chute.

Further, the first steel cable sleeve is provided with a plurality of first locking pieces.

Furthermore, the second locking piece is provided with a first gear, the connecting piece rotatably carries a second gear, and the first gear is in meshed connection with the second gear; the second gear is provided with a rotating shaft, and the end part of the rotating shaft is provided with a rotating groove.

Furthermore, the connecting piece comprises a first sleeve pipe part and a second sleeve pipe part which are arranged in parallel, the connecting hole is located in the first sleeve pipe part, and the second sleeve pipe part is used for fixing the second steel rope; the first sleeve pipe part is axially provided with a mounting groove communicated with the connecting hole, and the width of the mounting groove is larger than the diameter of the first steel rope and smaller than the outer diameter of the first locking part.

Furthermore, one end of the second steel rope, which is far away from the connecting piece, is provided with a hook.

Further, the butterfly valve locking device further comprises a guide piece, the guide piece is integrally arranged in a U shape, a guide groove in sliding fit with the first steel rope is formed in the outer side of the guide piece, and a guide roller is rotationally arranged in the guide groove.

Furthermore, the first steel rope is folded into a U shape, the closed end of the first steel rope forms the fixed sleeve, and the two ends of the first steel rope are connected with the second steel rope.

Furthermore, the first steel rope is provided with an auxiliary rope, and two ends of the auxiliary rope are respectively fixed at two ends of the fixed sleeve.

The invention has the beneficial effects that: through this device, after the butterfly valve loses the power supply, under the huge pressure of circulating water, the butterfly valve is difficult for can the mistake open or the mistake is closed, can guarantee circulating water system's normal operating.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of the butterfly valve closure in use;

FIG. 2 is a schematic structural view of the locking assembly of FIG. 1;

FIG. 3 is a schematic view of the structure of the connector of FIG. 2;

FIG. 4 is a schematic view of the connection between the first locking member and the anti-slip member of the present butterfly valve closure.

Description of reference numerals: 10. a first steel rope; 11. fixing a sleeve; 12. an auxiliary rope; 20. a second steel cord; 21. hooking; 30. a connecting member; 31. connecting holes; 32. mounting grooves; 33. a first sleeve portion; 34. a second sleeve portion; 40. a locking assembly; 41. a first locking member; 42. a second locking member; 43. a first gear; 44. a second gear; 45. a rotating shaft; 46. an anti-slip member; 461. deformation gaps; 50. a guide member; 51. a guide groove; 52. a guide roller; 61. a supporting seat; 62. a power arm; 63. and a limiting block.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

Examples

As shown in fig. 1, the present invention provides a butterfly valve locking device, which comprises:

the first steel rope 10 is provided with a fixed sleeve 11;

a second steel cord 20;

a connecting member 30 provided to the second steel cord 20, the connecting member 30 being provided with a connecting hole 31 through which the first steel cord 10 passes;

a locking assembly 40 disposed between the connecting member 30 and the first steel cable 10, wherein the locking assembly 40 is used for fixing the first steel cable 10.

In actual conditions, the butterfly valve is provided with supporting seat 61 outward, and the butterfly valve pivot is worn out supporting seat 61, and butterfly valve pivot tip is provided with the power arm 62 that is used for rotating the butterfly valve, is provided with a plurality of stoppers 63 on the butterfly valve base all around, and power arm 62 can cooperate with stopper 63 butt. When the device is used, the power arm 62 abuts against a limiting block 63, the fixing sleeve 11 is firstly sleeved on the power arm 62, then the first steel rope 10 bypasses the limiting block 63, then the second steel rope 20 is fixed on other limiting blocks 63, and finally the locking assembly 40 tightens and fixes the first steel rope 10 and the second steel rope 20 together. Through this device, after the butterfly valve loses the power supply, under the huge pressure of circulating water, the butterfly valve is difficult for can the mistake open or the mistake is closed, can guarantee circulating water system's normal operating.

As shown in fig. 1, the first steel rope 10 is folded into a U shape, the closed end of the first steel rope 10 forms the fixing sleeve 11, and the two ends of the first steel rope 10 are connected to the second steel rope 20. Specifically, the first steel rope 10 can be conveniently sleeved on the power arm 62 through the arrangement, the double-rope fixing is adopted, and the structural strength is higher. Meanwhile, in order to prevent the fixed sleeve 11 from sliding on the power arm 62, the first steel cable 10 is provided with an auxiliary rope 12, two ends of the auxiliary rope 12 are respectively fixed to two ends of the fixed sleeve 11, and the auxiliary rope 12 and the fixed sleeve 11 are arranged in parallel. When in use, the fixing sleeve 11 and the auxiliary rope 12 can be placed on different side surfaces of the power arm 62, so that the fixing sleeve 11 is prevented from falling off in use, and the stability of the device is improved.

As shown in fig. 1 and 2, the locking assembly 40 includes a first locking element 41 and a second locking element 42, the first locking element 41 is sleeved on the first steel cable 10, the first locking element 41 is slidably engaged with the connecting hole 31, and an outer wall of the first locking element 41 is provided with a first thread (not labeled in the figures); second locking member 42 rotate set up in on the connecting piece 30, the outer wall of second locking member 42 is provided with the second screw thread (not marking in the figure), first locking member 41 with the cooperation of second locking member 42 meshing rotates second locking member 42 enables first locking member 41 for connecting hole 31 round trip movement, first locking member 41 and second locking member 42 are equivalent to the cooperation of worm gear. During the specific use, cup joint fixed cover 11 on power arm 62, fix second steel cable 20 on a locating plate, then rotate second closure 42, first closure 41 drives first steel cable 10 and removes, and it is very convenient to operate until tightening first steel cable 10 and second steel cable 20.

In this embodiment, as shown in fig. 2 and 3, the connecting member 30 includes a first sleeve portion 33 and a second sleeve portion 34 arranged in parallel, the connecting hole 31 is located in the first sleeve portion 33, the second sleeve portion 34 is used for fixing the second steel cable 20, and the first sleeve portion 33 and the second sleeve portion 34 are provided with through holes to facilitate the engagement and connection of the first locking element 41 and the second locking element 42; the first sleeve part 33 is axially provided with an installation groove 32 communicating with the connection hole 31, and the width of the installation groove 32 is larger than the diameter of the first steel cable 10 and smaller than the outer diameter of the first locking part 41. When the steel cable is used specifically, the first steel cable 10 can be put into the mounting groove 32, so that the first steel cable 10 can conveniently penetrate through the first sleeve part 33.

As shown in fig. 2 and 3, the second locking element 42 is provided with a first gear 43, the connecting element 30 rotatably carries a second gear 44, and the first gear 43 is engaged with the second gear 44; the second gear 44 is provided with a rotating shaft 45, and a rotating groove is formed at an end of the rotating shaft 45. Specifically, the second gear 44 is located on the side of the first gear 43 away from the first sleeve portion 33, and the rotating groove is hexagonal, so that a sufficient space for rotating the second locking element 42 by a wrench can be ensured.

As shown in fig. 4, in order to avoid the first locking element 41 sliding on the first steel cable 10 during adjustment, one end of the first locking element 41 away from the fixing sleeve 11 is provided with an anti-slip element 46, the anti-slip element 46 is sleeved on the first steel cable 10, the outer diameter of the anti-slip element 46 gradually increases towards the direction away from the fixing sleeve 11, the anti-slip element 46 is provided with a deformation gap 461 along the axial direction, and one end of the first locking element 41 away from the fixing sleeve 11 is provided with an inclined slot in abutting fit with the outer wall of the anti-slip element 46. When the device is tightened, the first locking element 41 has a tendency to move in a direction away from the fixing sleeve 11, so that the first locking element 41 presses the anti-slip element 46, the anti-slip element 46 contracts inwards to press the steel rope, the anti-slip element 46 acts as a wedge to prevent the first locking element 41 from sliding relative to the first steel rope 10, and the steel rope in a tightened state is prevented from loosening.

Preferably, in order to facilitate bending of the first steel cable 10, the first steel cable 10 is sleeved with a plurality of first locking elements 41, which here corresponds to extending the length of the first locking elements 41, thereby increasing the adjustment distance.

As shown in fig. 1, in order to fix the second steel rope 20, a hook 21 is provided at an end of the second steel rope 20 away from the connector 30. Specifically, hang and constitute the U-shaped iron plate, can hang the couple 21 and establish the edge at the limiting plate, it is very convenient to install.

As shown in fig. 1, since the first steel cable 10 needs to go around a stopper 63, in order to reduce the friction between the first steel cable 10 and the stopper 63, the butterfly valve locking device further includes a guide 50, the guide 50 is integrally U-shaped, a guide groove 51 for slidably fitting with the first steel cable 10 is opened on the outer side of the guide 50, and a guide roller 52 is rotatably disposed in the guide groove 51. During the specific use, can be with guide 50 card at the edge of stopper 63, install first steel cable 10 in guide way 51, compress tightly guide roll 52, can be more laborsaving when rotating second closure 42.

In summary, when the device is used, the power arm 62 abuts against a limiting block 63, the fixing sleeve 11 is firstly sleeved on the power arm 62, then the first steel cable 10 bypasses the limiting block 63, then the second steel cable 20 is fixed on the other limiting block 63, and finally the locking assembly 40 tightens and fixes the first steel cable 10 and the second steel cable 20 together. Through this device, after the butterfly valve loses the power supply, under the huge pressure of circulating water, the butterfly valve is difficult for can the mistake open or the mistake is closed, can guarantee circulating water system's normal operating.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.