A valve handle assist fitting

Abstract

The utility model discloses a valve handle auxiliary fitting, include: ring assembly, its through connecting component and handle's tail end fixed or detachable connection, and the structure of ring assembly includes: cylindrical shell, it is fixedly installed on connecting component, is provided with ball in the cylindrical shell, and the radius of ball is greater than the both ends opening radius of cylindrical shell, chain, it is fixed with the axle of ball through the both ends opening of cylindrical shell, and natural perpendicular to the outside of cylindrical shell, big ring, it is fixedly installed in the lowest place of chain natural perpendicular. The utility model discloses a valve handle auxiliary fitting, solved the problem that the current high place valve handle can not be operated by the operator on the ground.

Description

Technical Field

[0001] This utility model relates to the field of valve fittings technology, specifically to an auxiliary fitting for a valve handle. Background Technology

[0002] In the daily production and operation of chemical plants, ball valves are used very frequently as key components of fluid control, and their ease of operation directly affects the smoothness of the production process. However, due to initial design flaws in some equipment or limitations in pipeline layout, some ball valves are installed at positions that exceed the normal operating height of personnel.

[0003] When production adjustments, maintenance, or emergency response require the closure of these high-level ball valves, operators must first obtain the relevant work permits and then use ladders to close the valves via the handles. The entire process is not only time-consuming, seriously affecting production and emergency efficiency, but also poses a risk of falls and injuries due to the need for personnel to work at heights, thus creating a safety hazard for on-site operations. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to the present invention, a valve handle auxiliary accessory is provided, comprising: A ring assembly, which is fixedly or detachably connected to the tail end of the handle via a connecting component, and the structure of the ring assembly includes: A cylindrical shell is fixedly mounted on a connecting assembly. Ball bearings are installed inside the cylindrical shell, and the radius of the ball bearings is larger than the radius of the openings at both ends of the cylindrical shell. The chain has both ends passing through the openings at both ends of the cylindrical shell and fixed to the axis of the ball bearings, and is naturally perpendicular to the outside of the cylindrical shell. The large ring is fixedly installed at the lowest point where the chain naturally hangs vertically.

[0006] Preferably, the connecting component is further provided with a trapezoidal block with its opening facing downwards.

[0007] Preferably, the connecting component is fixedly connected to the tail end of the handle by welding.

[0008] Preferably, the connecting component is detachably connected to the tail end of the handle in the following manner: The upper half of the handle tail end is symmetrically provided with L-shaped sliding grooves, and the L-shaped sliding grooves are respectively provided with side openings on the side and top openings on the top surface. The lower half of the handle tail end is provided with T-shaped sliding grooves. The structure of the connection component includes: A fixing block, which is fixedly installed with the circular sleeve; The double fork head is set on the upper half of the protruding fixing block and is adapted to the side opening of the L-shaped sliding groove. The T-shaped sliding block protrudes from the lower half of the fixed block and is adapted to the size of the T-shaped sliding groove.

[0009] Preferably, the double fork head is further provided with a pressing spring assembly, the pressing spring assembly having the following structure: The base has a protruding double fork head end and a guide post on the base; The pressing block is sized to match the upper opening, and the bottom of the pressing block has a hole that matches the guide post. The spring has one end connected to the base and the other end connected to the pressing block.

[0010] This utility model has at least the following beneficial effects: This device connects to the end of the handle via a connecting component. The cooperation between the long rod and the ring component allows operators to adjust the valve without having to climb to a height. This not only eliminates the need for a permit to work at height and significantly reduces operation time, ensuring production and emergency efficiency, but also avoids the risk of falls that may occur when operators work at height.

[0011] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the handle structure of this utility model; Figure 3 This is a schematic diagram of the connecting component and the ring component of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A; Figure 5 This is a cross-sectional schematic diagram of the detachable connection method of this utility model; Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram illustrating the use of the handle with trapezoidal blocks of this utility model; The markings in the diagram are: 1. Handle; 11. L-shaped sliding groove; 111. Side opening; 112. Top opening; 12. T-shaped sliding groove; 2. Ring assembly; 3. Connecting assembly; 31. Fixing block; 32. Double fork head; 33. T-shaped sliding block; 34. Trapezoidal block; 4. Cylindrical housing; 41. Ball bearing; 5. Chain; 51. Large ring; 6. Base; 61. Guide post; 7. Pressing block; 71. Hole; 8. Spring; 9. Long rod. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0014] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0015] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1-7 This invention discloses a valve handle auxiliary accessory, comprising: The ring assembly 2 is fixedly or detachably connected to the tail end of the handle 1 via the connecting assembly 3, and the structure of the ring assembly 2 includes: A cylindrical shell 4 is fixedly mounted on the connecting assembly 3. A ball bearing 41 is provided inside the cylindrical shell 4, and the radius of the ball bearing 41 is larger than the radius of the openings at both ends of the cylindrical shell 4. The chain 5 has both ends passing through the openings at both ends of the cylindrical housing 4 and fixed to the axis of the ball bearing 41, and is naturally perpendicular to the outside of the cylindrical housing 4. The large circular ring 51 is fixedly installed at the lowest point of the naturally vertical chain 5.

[0019] Working principle: This device uses connecting component 3 to fix the ring component 2 to the tail end of the handle 1, and is applied to high-position ball valves; When the operator needs to operate the high-position ball valve, there is no need to climb to a height. The operator can simply use the long rod 9 with hooks on the ground to put the hooks of the long rod 9 into the large ring 51 to connect the long rod 9 with the ring assembly 2. At this time, the operator can adjust the valve by pulling down the long rod 9 on the ground. The movement of the long rod 9 drives the ring assembly 2, and the ring assembly 2 and the connecting assembly 3 together drive the handle 1 to move. After the valve adjustment is completed, the operator only needs to lift the long rod 9 upwards to disengage the hook from the large ring 51 and end the operation. Among them, ① because the radius of ball 41 is larger than the opening of the shell, it retains only the degree of rotational freedom and does not come out; ② In actual use, the handle 1 of the high-position ball valve may be set at various angles such as horizontal, vertical or tilted due to pipeline layout and installation space limitations. The ball 41 can rotate freely 360° and can adapt to the angle of the handle 1 by its own rotation, thus offsetting the tilt angle of the handle 1. This ensures that the direction of force on the chain 5 is always consistent with the direction of gravity, preventing skewing, and keeping the large ring 51 perpendicular to the ground. At this time, the operator does not need to judge the angle of the handle 1. He only needs to pull the large ring 51 vertically down or horizontally, and the force can be directly transmitted to the handle 1 through the chain 5, avoiding jamming and labor caused by directional deviation.

[0020] ③ In actual use, the high-position ball valve is usually several meters or even higher (3-8 meters) above the ground. If the operating end is a small hook or dot, the field of view from the ground is extremely small, and it is difficult for the human eye to locate it. The large circular ring 51 of this device provides a larger effective contact range in the annular area against the background of high altitude. Even if the operator judges that there is a slight deviation, the hook can be easily hooked into the inside of the ring without repeated adjustments, reducing the difficulty of alignment.

[0021] At the same time, the circular structure distributes force evenly, and when pulled, the hook or rope will naturally fit the inner side of the ring and will not slip off due to slight deviation in the direction of the pulling force.

[0022] ④ In practical applications, if the height is greater than 5m, the diameter of the large ring 51 should preferably be 11-12cm. If there are pipes or supports around the valve, 8-9cm should be selected first to avoid interference between the large circular ring 51 and surrounding components, while ensuring basic locking requirements. ⑤ In practical applications, opening and closing high-level valves may require a large pulling force. If conventional nylon ropes are used, they will stretch elastically after long-term use, which may result in a large pulling stroke but the valve not moving. The rigidity of the chain 5 in this device can be directly driven by the ball bearing 41 to rotate the handle 1, resulting in minimal force loss. In summary, this device connects to the end of the handle 1 via the connecting component 3. The cooperation between the long rod 9 and the ring component 2 allows operators to adjust the valve without having to climb to a height. This not only eliminates the need for a permit to work at height and significantly shortens operation time, ensuring production and emergency efficiency, but also avoids the risk of falls that may occur when operators work at height.

[0023] As described above, the connecting component 3 is also provided with a trapezoidal block 34 with its opening facing downwards.

[0024] Working principle: When the handle is rotated vertically, after the valve is closed by the ring assembly 2, the operator needs to return the handle to its initial position. The operator holds the fork with the U-shaped groove and aligns it with the trapezoidal block 34 with the opening facing downwards from the ground. The fork engages with the downward opening, and the operator can then push the handle back to its initial position by applying upward force.

[0025] In the above scheme, the connecting component 3 is fixedly connected to the tail end of the handle 1 by welding. Welding is a simple and strong method.

[0026] In the above scheme, the detachable connection between the connecting component 3 and the tail end of the handle 1 is as follows: The upper half of the handle 1 is symmetrically provided with L-shaped sliding grooves 11, and the L-shaped sliding grooves 11 are respectively provided with side openings 111 on the side and top openings 112 on the top surface. The lower half of the handle 1 is provided with T-shaped sliding grooves 12. The structure of the connecting component 3 includes: The fixing block 31 is fixedly installed with the circular sleeve 4; The double fork head 32 protrudes from the upper half of the fixing block 31 and is adapted to the side opening 111 of the L-shaped sliding groove 11. The T-shaped sliding block 33 protrudes from the lower half of the fixing block 31 and is adapted to the size of the T-shaped sliding groove 12.

[0027] Working principle: First, align the lower half of the T-shaped sliding block 33 of the connecting component 3 with the T-shaped sliding groove 12 at the end of the handle 1, insert it from one side and push it to complete the initial fixation; When the T-shaped sliding block 33 is pushed, the double fork head 32 on the upper half of the fixed block 31 is aligned with the side opening 111 of the L-shaped sliding groove 11 of the handle 1. The double fork head 32 slides into the side opening 111 and continues to be pushed inward until the double fork head 32 abuts against the inside of the L-shaped sliding groove 11, thus completing the installation of the connecting component 3 and the tail end of the handle 1.

[0028] As described above, the double fork head 32 is further provided with a pressing spring assembly at its front end. The pressing spring assembly has the following structure: The base 6 has a protruding double fork head 32 at the front end, and a guide post 61 is provided on the base 6; The pressing block 7 is sized to match the upper opening 112, and the bottom of the pressing block 7 has a hole 71 that matches the guide post 61. Spring 8, one end of which is connected to base 6, and the other end of which is connected to pressing block 7.

[0029] Working principle: The double fork head 32 slides into the side opening 111 of the L-shaped sliding groove 11. During the process, the pressing block 7 is squeezed by the groove wall, and the spring 8 is squeezed (in actual use, the overall height of the pressing block 7 and the base 6 is less than the inner groove height of the L-shaped sliding groove 11, so it does not hinder the sliding). When the double fork head 32 slides to the innermost wall of the L-shaped groove, the pressing block 7 will be aligned with the upper opening 112 of the L-shaped sliding groove 11. The spring 8 will restore its deformation, push the pressing block 7 to pop out and lock into the upper opening 112, fix the double fork head 32 in the current position, and prevent it from sliding accidentally in the groove.

[0030] When disassembly is required, press the pressing block 7 at the upper opening 112 with your hand to compress the spring 8 and retract it, thus freeing it from the restriction of the upper opening 112; at this time, the double fork head 32 can be pushed to slide in the opposite direction along the L-shaped sliding groove 11 and taken out from the side opening 111, thus completing the disassembly of the connecting component 3.

[0031] Among them, ① compared with relying solely on the frictional force between the double fork head 32 and the L-shaped sliding groove 11 for fixation, the mechanical positioning of the pressing block 7 being inserted into the upper opening 112 is more reliable and can effectively prevent loosening of the connection due to long-term use or vibration.

[0032] ②The guide post 61 provides guidance and constraint for the spring 8, preventing deformation, fatigue fracture, etc. caused by long-term use of the spring 8; When the pressing block 7 is close to the base 6, the hole 71 provides movable space for the guide post 61.

[0033] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A valve handle auxiliary accessory, characterized in that, include: A ring assembly, which is fixedly or detachably connected to the tail end of the handle via a connecting component, and the structure of the ring assembly includes: A cylindrical shell is fixedly mounted on a connecting assembly. Ball bearings are installed inside the cylindrical shell, and the radius of the ball bearings is larger than the radius of the openings at both ends of the cylindrical shell. The chain has both ends passing through the openings at both ends of the cylindrical shell and fixed to the axis of the ball bearings, and is naturally perpendicular to the outside of the cylindrical shell; The large ring is fixedly installed at the lowest point where the chain naturally hangs vertically.

2. The valve handle auxiliary accessory according to claim 1, characterized in that, The connecting component is also provided with a trapezoidal block with its opening facing downwards.

3. The valve handle auxiliary accessory according to claim 1, characterized in that, The connecting component is fixedly connected to the tail end of the handle by welding.

4. The valve handle auxiliary accessory according to claim 1, characterized in that, The connection method between the connecting component and the tail end of the handle is as follows: The upper half of the handle tail end is symmetrically provided with L-shaped sliding grooves, and the L-shaped sliding grooves are respectively provided with side openings on the side and top openings on the top surface. The lower half of the handle tail end is provided with T-shaped sliding grooves. The structure of the connection component includes: A fixing block, which is fixedly installed with the circular sleeve; The double fork head is set on the upper half of the protruding fixing block and is adapted to the side opening of the L-shaped sliding groove. The T-shaped sliding block protrudes from the lower half of the fixed block and is adapted to the size of the T-shaped sliding groove.

5. The valve handle auxiliary accessory according to claim 4, characterized in that, The double-fork head is also provided with a pressing spring assembly, the structure of which includes: The base has a protruding double fork head end and a guide post on the base; The pressing block is sized to match the upper opening, and the bottom of the pressing block has a hole that matches the guide post. The spring has one end connected to the base and the other end connected to the pressing block.

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