CN217776833U

CN217776833U - Wrench for opening and closing valve in limited space

Info

Publication number: CN217776833U
Application number: CN202221406564.1U
Authority: CN
Inventors: 刘小勇; 冯川; 谭忠弟; 舒洪友; 马悦琴; 刘炎梅
Original assignee: HUALAN BIOLOGICAL ENGINEERING (CHONGQING) Inc
Current assignee: HUALAN BIOLOGICAL ENGINEERING (CHONGQING) Inc
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-11-11
Anticipated expiration: 2032-06-07

Abstract

The utility model provides a spanner for valve switching in restricted space, it includes the extension bar subassembly, can dismantle the fork claw subassembly of connecting in the extension bar subassembly, fork claw subassembly is used for rotating the hand wheel of hand wheel formula valve, extension bar unit connection can dismantle the slewing mechanism who is connected with and is used for rotating handle formula valve handle in the one end of fork claw subassembly, slewing mechanism includes that one end can dismantle the sleeve pipe of connecting in the extension bar subassembly, can dismantle the angle adjusting part of connecting in the sleeve pipe other end, be fixed in angle adjusting part snatch the subassembly and be used for the pulling and snatch the subassembly and carry out the pivoted application of force subassembly, it sets up the opening that the handle that supplies rotating handle formula valve stretches into to snatch the subassembly. The utility model discloses have the effect of improving the problem that is not convenient for carry out the switching to handle formula valve and/or hand wheel formula valve in the confined space among the prior art.

Description

Wrench for opening and closing valve in limited space

Technical Field

The utility model relates to the technical field of valves, especially, relate to a spanner that is used for valve switching in the confined space.

Background

Valves are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium and are essential components of piping systems. The valves can be divided into gate valves, stop valves, butterfly valves, ball valves, plug valves, check valves, pressure reducing valves, drain valves and the like according to the use functions; the manual valve is the most basic driving mode of the valve, and the driving mode of the manual valve is usually a hand wheel driving mode or a handle driving mode. The manual valve usually requires a certain space for opening and closing, and a worker is required to reach a valve point for opening and closing. However, for the valve in the limited space, the worker cannot reach the valve point to open and close the valve due to the limitation that the size of the space and the position of the valve are not beneficial to personal safety and the like.

In order to solve the problems, the chinese utility model patent with publication number CN211867623U discloses a movable wrench for a valve switch in a restricted space. This portable spanner includes: the valve clip is U-shaped, and a downward opening of the valve clip is used for being clamped with a valve hand wheel; one end of the connecting rod is connected with the valve clamp; and the force applying device is connected with the other end of the connecting rod, and an operator rotates the valve clamp through the force applying device to perform the opening and closing operation of the valve. This scheme provides a spanner that can open and close the valve in the confined space, but it can only open and close to the hand wheel formula valve that the plane of hand wheel place is perpendicular with spanner length direction, can not open and close the hand wheel formula valve that the plane of hand wheel place and spanner length direction have an contained angle that is less than 90 and even parallel.

In order to solve the above problems, the chinese utility model patent with publication number CN215635315U discloses a restricted space valve operating tool, which is characterized in that: the valve fork claw mechanism is characterized by comprising a valve fork claw mechanism, wherein one end of the valve fork claw mechanism is connected with an extension bar mechanism, and the other end of the valve fork claw mechanism is connected with a valve hand wheel; the valve fork claw mechanism is connected with the lengthening rod mechanism through a direction conversion mechanism, and the direction conversion mechanism converts the movement direction of the valve fork claw mechanism and then acts on the lengthening rod mechanism. The scheme can open and close the hand wheel type valve which has an included angle smaller than 90 degrees between the plane where the hand wheel is located and the length direction of the wrench and is even parallel.

In view of the above-mentioned related art, it provides a wrench for opening and closing a hand wheel type valve in a limited space, but for a handle type valve, the handle length direction is parallel to the wrench length direction, has a certain included angle, or even is perpendicular to each other, and the wrench has a limited use effect.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a spanner for valve switching in restricted space, it can improve among the prior art and be not convenient for carry out the problem of switching to handle formula valve and/or hand wheel formula valve in the restricted space.

According to the utility model discloses an embodiment, a spanner for valve switching in restricted space, it includes the extension bar subassembly, can dismantle the fork claw subassembly of connecting in the extension bar subassembly, the fork claw subassembly is used for rotating the hand wheel formula valve's hand wheel, extension bar unit attach can dismantle the slewing mechanism who is connected with and is used for rotating handle formula valve handle in the one end of fork claw subassembly, slewing mechanism includes that one end can be dismantled and connect in the sleeve pipe of extension bar subassembly, can dismantle the angle adjusting part of connecting in the sleeve pipe other end, be fixed in angle adjusting part snatch the subassembly and be used for the pulling and snatch the subassembly and carry out the pivoted application of force subassembly, it sets up the opening that the handle that supplies the rotating handle formula valve stretches into to snatch the subassembly.

Preferably, the angle adjusting assembly comprises a rotating rod with one end detachably connected to the connecting rod of the sleeve, the other end of the connecting rod fixed to the rotating seat and one end rotatably connected to the rotating seat, and the grabbing assembly is fixed to the rotating rod.

Preferably, the force application assembly comprises a telescopic rod, a sliding rod and a pull rope, one end of the telescopic rod is fixed to the grabbing assembly, the sliding rod is rotatably connected to the other end of the telescopic rod, one end of the pull rope is fixed to the grabbing assembly, and the other end of the pull rope bypasses the sliding rod and extends to the extension rod assembly.

Preferably, the telescopic link includes that one end is fixed in the screw rod of snatching the subassembly, one end threaded connection in the loop bar of screw rod and rotates the slide of connecting in the loop bar other end, the slide bar rotates to be connected in the slide.

Preferably, the sliding seat is provided with a limiting plate for preventing the pull rope from falling off.

Preferably, one end of the extension rod assembly, which is far away from the fork claw assembly, is provided with a wire clamp for a pull rope to pass through.

Preferably, the grabbing component is tubular, one end of the grabbing component is fixed on the rotating rod, and the handle of the handle type valve can extend into the grabbing component from openings at two ends of the grabbing component.

Preferably, the grabbing component is a channel steel, and is opened along the length direction of the rotating rod and is opened downwards towards the handle type valve.

To sum up, the utility model discloses a following at least one useful technological effect:

the handle type valve is characterized in that the lengthening rod component is arranged, and the fork claw component and the rotating mechanism which are detachably connected to the lengthening rod component are arranged, so that the hand wheel of the handle type valve can be rotated through the combination of the lengthening rod component and the fork claw component, and the handle of the handle type valve can be rotated through the combination of the lengthening rod component and the rotating mechanism, and the problem that the handle type valve and/or the hand wheel type valve in a limited space are inconvenient to open and close in the prior art is solved; when rotating handle formula valve's handle, connect in sheathed tube angle adjusting part through setting up to guarantee when utilizing the stay cord application of force, the handle can be located to the subassembly of snatching after rotating certain angle, thereby guarantees to rotate smoothly of handle formula valve's handle through the stay cord.

Drawings

Fig. 1 is a schematic view of the overall structure of one embodiment of the present invention, which is shown in a state of being applied to a wrench of a hand wheel type valve;

fig. 2 is a schematic view of the overall structure of another embodiment of the present invention, showing a first state of the wrench applied to the handle valve;

fig. 3 is a schematic view of the overall structure of another embodiment of the present invention, showing a second state of the wrench applied to the handle valve;

fig. 4 is a schematic partial structure diagram of another embodiment of the present invention, which mainly shows the structure of the grabbing component.

In the above drawings: 1. an extension bar assembly; 2. a fork jaw assembly; 3. a sleeve; 4. an angle adjustment assembly; 41. a connecting rod; 42. a rotating seat; 43. rotating the rod; 5. a grasping assembly; 6. a force application assembly; 61. a telescopic rod; 611. a screw; 612. a loop bar; 613. a slide base; 62. a slide bar; 63. pulling a rope; 64. a limiting plate; 65. and (4) wire clamping.

Detailed Description

The present invention will be further described with reference to fig. 1-4.

Referring to fig. 1, the embodiment of the present invention provides a wrench for opening and closing a valve in a restricted space, including an extension rod assembly 1 and a fork claw assembly 2; the extension bar assembly 1 is a cross-shaped structure formed by splicing a connecting rod and a handle bar in the prior art (such as CN211867623U, CN 215635315U), and the right-angle elbow or universal joint in the prior art (such as CN 215635315U) can be connected to the end part of the connecting rod far away from the handle bar so as to change the orientation of the end part.

Fork claw subassembly 2 can be dismantled and connect in the tip of extension bar subassembly 1, can dismantle the one end of connecting and keeping away from the handle bar in the connecting rod, and both accessible are pegged graft the back, prevent through bolt connection's mode that fork claw subassembly 2 rotates for extension bar subassembly 1. Wherein, the fork jaw assembly 2 can adopt a valve clip in the prior art (such as CN 211867623U), and the valve clip is in a U-shaped structure deviating from the opening of the lengthening rod assembly 1.

When the hand wheel type valve is opened and closed, the fork claw assembly 2 is connected to a hand wheel of the hand wheel type valve in a clamped mode, then force is applied to the extension bar assembly 1, the hand wheel can rotate, the opening and closing action of the hand wheel type valve is completed, and therefore the problem that the hand wheel type valve in a limited space is not convenient to open and close in the prior art is solved. Wherein, when the plane of hand wheel place had the contained angle that is less than 90 and even is parallel with extension bar subassembly 1 length direction, the accessible changed the opening orientation of fork claw subassembly 2 at the mode of connecting rod end connection universal joint or elbow bend to guarantee fork claw subassembly 2 joint in the hand wheel of hand wheel formula valve.

Referring to fig. 2 to 4, in the embodiment of the present invention, a rotating mechanism is detachably connected to one end of the extension rod assembly 1 connected to the fork claw assembly 2, and the rotating mechanism includes a sleeve 3, an angle adjusting assembly 4, a grabbing assembly 5 and a force application assembly 6; one end of the sleeve 3 is detachably connected to the extension bar component 1 in a threaded or pin joint mode; one end of the angle adjusting component 4 is detachably connected with the other end of the sleeve 3 in a threaded or pin joint mode, and the included angle formed by the two ends can be changed; the grabbing component 5 is fixed at the other end of the angle adjusting component 4 so as to sleeve a handle of the handle type valve; the force application assembly 6 is fixed on the grabbing assembly 5 so as to pull the grabbing assembly 5 to rotate.

When rotating handle formula valve's handle, make earlier to snatch subassembly 5 cover and locate handle formula valve's handle, then snatch subassembly 5 through the pulling of force application subassembly 6 and rotate for handle formula valve's handle with snatch subassembly 5 and together rotate, thereby accomplish handle formula valve's switching work, improve among the prior art and be not convenient for carry out the problem of switching to handle formula valve in the confined space.

Specifically, the angle adjusting assembly 4 includes a connecting rod 41, a rotating seat 42 and a rotating rod 43; one end of the connecting rod 41 is detachably connected to the sleeve 3 in a threaded or pin joint mode; the rotating seat 42 is fixed at the other end of the connecting rod 41; one end of the rotating rod 43 is rotatably connected to the rotating seat 42, so that the two ends of the angle adjusting assembly 4 close to and far away from the sleeve 3 can realize the change of the size of the included angle in a rotating manner.

In one embodiment, the grasping element 5 is tubular, and one end thereof is fixed to the rotating rod 43, and the handle of the handle valve can extend into the grasping element 5 from both end openings of the grasping element 5. In another embodiment, the grasping assembly 5 is a channel steel and opens along the length of the rotating rod 43 and downwardly toward the handle valve.

When the grabbing component 5 is sleeved on the handle of the handle type valve, if the length direction of the lengthened rod component 1 is parallel to the length direction of the handle type valve, the directions of two ends of the angle adjusting component 4 are kept consistent, and the grabbing component 5 directly stretches into the position of the valve. If the length direction of the extension rod assembly 1 and the length direction of the handle type valve form a certain angle or even are perpendicular, after the grabbing assembly 5 extends into the valve, the grabbing assembly 5 can be pulled to rotate through the force application assembly 6, so that the directions of two ends of the angle adjusting assembly 4 are changed until the grabbing assembly 5 can be sleeved into the handle of the handle type valve. In this way, the handle of the handle valve can be ensured to rotate smoothly.

The force application assembly 6 comprises a telescopic rod 61, a sliding rod 62 and a pull rope 63; the telescopic rod 61 comprises a screw rod 611 with one end fixed to the grasping assembly 5, a sleeve rod 612 with one end screwed to the screw rod 611, and a sliding seat 613 rotatably connected to the other end of the sleeve rod 612. The slide bar 62 is rotatably connected to the slide 613. One end of the pull cord 63 is fixed to the gripper assembly 5 and the fixed point is remote from the end of the extension bar assembly 1 relative to the telescopic rod 61, and the other end passes around the slide bar 62 and extends towards the extension bar assembly. When the force is applied by the force applying assembly 6 and the grasping assembly 5 and the handle are rotated together, the pulling rope 63 is pulled.

A stopper plate 64 is provided on the slide 613 to prevent the pull cord 63 from falling off the slide 613. A wire clamp 65 for the pull rope 63 to pass through is arranged at one end of the extension bar assembly 1 far away from the fork jaw assembly 2 so as to prevent the pull rope 63 from falling into the limited space where the valve is positioned.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a spanner for valve switching in confined space, includes extension bar subassembly (1), can dismantle fork claw subassembly (2) of connecting in extension bar subassembly (1), fork claw subassembly (2) are used for rotating the hand wheel of hand wheel formula valve, its characterized in that: extension bar subassembly (1) is connected in the one end of fork claw subassembly (2) and can be dismantled the slewing mechanism who is connected with and is used for twist grip formula valve handle, slewing mechanism includes that one end can be dismantled and connect in sleeve pipe (3) of extension bar subassembly (1), can dismantle and connect in angle adjusting part (4) of sleeve pipe (3) other end, be fixed in snatching subassembly (5) of angle adjusting part (4) and be used for the pulling to snatch subassembly (5) and carry out pivoted application of force subassembly (6), it sets up the opening that supplies twist grip formula valve's handle to stretch into to snatch subassembly (5).

2. The wrench for opening and closing the valve in the confined space according to claim 1, wherein: angle adjusting part (4) include that one end can be dismantled and connect in connecting rod (41) of sleeve pipe (3), be fixed in rotation seat (42) and the one end rotation of the connecting rod (41) other end and connect in dwang (43) of rotating seat (42), it is fixed in dwang (43) to snatch subassembly (5).

3. The wrench for opening and closing the valve in the confined space according to claim 1, further comprising: the force application assembly (6) comprises a telescopic rod (61) with one end fixed to the grabbing assembly (5), a sliding rod (62) rotatably connected to the other end of the telescopic rod (61), and a pull rope (63) with one end fixed to the grabbing assembly (5), wherein the other end of the pull rope (63) bypasses the sliding rod (62) and extends to the lengthening rod assembly (1).

4. A wrench as claimed in claim 3 for opening and closing a valve in a confined space, wherein: the telescopic rod (61) comprises a screw rod (611) with one end fixed to the grabbing component (5), a sleeve rod (612) with one end connected to the screw rod (611) in a threaded mode, and a sliding seat (613) connected to the other end of the sleeve rod (612) in a rotating mode, and the sliding rod (62) is connected to the sliding seat (613) in a rotating mode.

5. The wrench for opening and closing the valve in the confined space according to claim 4, wherein: and a limiting plate (64) for preventing the pull rope (63) from falling off is arranged on the sliding seat (613).

6. The wrench for opening and closing the valve in the confined space according to claim 5, wherein: one end of the extension bar component (1) far away from the fork claw component (2) is provided with a wire clamp (65) for a pull rope (63) to pass through.

7. A wrench as claimed in claim 2, for opening and closing a valve in a confined space, wherein: the grabbing component (5) is tubular, one end of the grabbing component is fixed on the rotating rod (43), and the handle of the handle type valve can extend into the grabbing component (5) from openings at two ends of the grabbing component (5).

8. A wrench as claimed in claim 2, for opening and closing a valve in a confined space, wherein: snatch subassembly (5) and be the channel-section steel, and the length direction opening along dwang (43) to open towards handle formula valve downwardly opening.