Auxiliary extension tool for valve handle in narrow space

Abstract

The utility model discloses a kind of valve handle auxiliary extension operating tools at narrow space, belong to valve handle auxiliary operation technical field, including operating lever and operating claw;The operating lever includes handheld section and operating section;The operating claw is provided with two, respectively fixed in the upper and lower sides of operating section far from handheld section one end, and symmetrically arranged;The operating claw is used for clamping valve handle operating lever.The utility model of a kind of valve handle auxiliary extension operating tools at narrow space can solve the problems, such as valve cannot work, caused by the valve in the narrow space position of prior art in limited operation even cannot be operated.

Description

Technical Field

[0001] This utility model belongs to the field of valve handle auxiliary operation technology. Specifically, it relates to a valve handle auxiliary extension operation tool for narrow spaces. Background Technology

[0002] Valves are essential components of pipelines, used to cut off or allow the flow of fluid within pipes, and to regulate flow rate and velocity. Valves typically require sufficient force to turn. In most cases, valves are located in positions easily accessible to operators. However, in certain special circumstances, such as in confined or narrow areas, operators may not be able to reach the valve, or even if they can, the limited space may prevent them from applying the necessary torque to turn it, rendering the valve inoperable.

[0003] Therefore, there is an urgent need for an auxiliary tool that can enable valve rotation in confined spaces to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings by providing an auxiliary extension tool for valve handles in confined spaces, thus solving the problem in the prior art where valves in narrow locations are unable to function due to operational limitations or even inoperability. To achieve the above objective, this utility model provides the following technical solution:

[0005] A valve handle extension tool for use in confined spaces includes an operating rod and operating claws; the operating rod includes a hand-held section and an operating section; two operating claws are provided, respectively fixed on the upper and lower sides of the operating section away from the hand-held section, and are symmetrically arranged; the operating claws are used to engage the valve handle operating rod.

[0006] Furthermore, the operating claw is petal-shaped and includes a base and a plurality of limiting claws evenly arranged on the base; the plurality of limiting claws are spaced apart on the edge of the base, and a limiting groove is formed between two adjacent limiting claws.

[0007] Furthermore, the base is circular; the limiting grooves are opposite each other in pairs, and the lines connecting them all pass through the center of the base.

[0008] Furthermore, both sides of the limiting groove are symmetrical arc-shaped structures, with the arc direction spreading outward from the bottom to the top.

[0009] Furthermore, the handheld section includes a telescopic cylinder and a telescopic rod; the telescopic rod is slidably connected inside the telescopic cylinder; and the top end of the telescopic rod is connected to the operating section.

[0010] Furthermore, the telescopic rod and one end of the operating section are rotatably connected via a damping shaft; the damping shaft can adjust the rotation angle between the operating section and the telescopic rod.

[0011] Furthermore, the plane of rotation of the damping shaft is perpendicular to the plane of the base.

[0012] Furthermore, the telescopic cylinder is provided with an operating handle at its bottom; the operating handle is provided with a rubber sleeve.

[0013] Furthermore, the telescopic cylinder is provided with a plurality of connecting holes evenly distributed along its length; the plurality of connecting holes are arranged in two rows.

[0014] Furthermore, the telescopic rod is provided with two short rods; the short rods are connected to the telescopic rod by springs, and can be embedded into the telescopic rod by pressing the short rods; the two short rods can be connected through the connecting holes to fix the telescopic rod inside the telescopic cylinder.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses an auxiliary extension tool for valve handles in narrow spaces. It is provided with a hand-held section and an operating section. The connection between the hand-held section and the operating section can be fixed vertically or set as a damping pivot connection to adjust any angle and lock. The operating section is provided with two symmetrical operating claws. The two opposing limiting grooves on the operating claws can be used to limit the valve handle operating rod and then rotate it to complete the rotation of valve handles in some narrow spaces. The upper or lower operating claws can be used to limit the operation according to the specific spatial position.

[0017] The two side walls of the limiting groove on the operating claw of this utility model are symmetrical arc structures, and the arc direction spreads outward from the bottom to the top, that is, the top opening of the limiting groove is larger than its bottom, and the two sides of the top are also arc structures, which makes it easier for the operator to put the valve handle operating rod into the limiting groove during operation, thereby improving operating efficiency.

[0018] The handheld section of this utility model is designed as a telescopic structure, which is used to achieve locking after sliding by engaging the short rod on the telescopic rod with the connecting hole on the telescopic cylinder. This adapts to valve operations at different heights. Combined with the rotational connection between the operating section and the handheld section, it can adapt to more operating situations and improve the applicability of this tool. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a top view of the operating section of this utility model;

[0021] Figure 3This is a schematic diagram showing the connection between the present invention and the valve handle operating rod;

[0022] In the attached diagram: 1. Handheld section; 2. Operating section; 3. Operating claw; 4. Valve handle operating rod; 5. Base; 6. Limiting claw; 7. Limiting groove; 8. End ball head. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] See attached Figures 1-3 This embodiment provides an auxiliary extension tool for valve handles in confined spaces, comprising an operating rod and an operating claw 3. The operator moves the operating claw 3 to the valve position by controlling the operating rod to operate the valve handle operating rod 4, thereby rotating the valve to complete its corresponding function. The operating rod includes a handheld section 1 and an operating section 2. The handheld section 1 is for the operator to hold, and one end of the operating section 2 is equipped with an operating claw 3 to engage with the valve handle operating rod 4 for limiting and locking. The handheld section 1 then transmits force to the valve handle operating rod 4 to complete the rotation. Two operating claws 3 are provided, symmetrically arranged on the upper and lower sides of the operating section 2, allowing operation from either the upper or lower claw 3 depending on the specific situation, to adapt to valve rotation in more complex conditions.

[0027] In this embodiment, the operating claw 3 has a petal-shaped structure, including a base 5 and a plurality of limiting claws 6 evenly arranged around the periphery of the base 5, with each claw spaced apart. This creates a limiting groove 7 between adjacent limiting claws 6, which is used to engage the valve handle operating rod 4. The number of limiting claws 6 is set to an even number, resulting in an even number of limiting grooves 7. These even-numbered limiting grooves 7 are paired opposite each other, and their connecting line passes through the center of the base 5 to ensure they are in a straight line, thus engaging the valve handle operating rod 4 onto two opposing limiting grooves 7. Preferably, four limiting grooves 7 are provided, arranged in a cross shape on the base 5, allowing operation in two mutually perpendicular directions.

[0028] In this embodiment, the two side walls of the limiting groove 7 are symmetrical arc structures, with the arc direction spreading outward from the bottom to the top. This means the top opening of the limiting groove 7 is larger than its bottom, and both sides of the top are also arc-shaped. This facilitates easier entry of the valve handle operating rod 4 into the limiting groove 7 during operation, improving operational efficiency. Simultaneously, the depth of the limiting groove 7 is much greater than the thickness of the valve handle operating rod 4. When force is applied, it can be better transmitted through the operating rod to the valve handle operating rod 4, making it less prone to detachment and more stable during operation.

[0029] In this embodiment, the handheld section 1 is configured as a telescopic structure to adjust the length of the handheld section 1 to meet the operation of the valve at different height positions. The specific handheld section 1 includes a telescopic cylinder and a telescopic rod. The telescopic rod and the telescopic cylinder can be connected by a damping structure, allowing for manual extension and retraction during adjustment. It automatically locks when no force is applied, thus adjusting the length. Preferably, the telescopic structure also features connecting holes on opposite sides of the telescopic cylinder wall, evenly spaced along the length of the cylinder. The diameter of the telescopic rod is slightly smaller than the diameter of the telescopic cylinder wall. Short rods are provided on opposite sides of the telescopic rod, with their bottoms fixed to the telescopic rod via a spring structure. Pressing the short rods allows them to be fully embedded into the telescopic rod. During initial installation of the handheld section 1, press the short rods on both sides of the telescopic rod to embed them into the telescopic rod, then insert it into the telescopic cylinder. After extending it to the appropriate position, rotate and finely adjust until the position of the short rods on the telescopic rod aligns with the position of the connecting holes on the telescopic cylinder. At this point, the short rods extend under the restoring force of the spring and lock into the connecting holes for fixation. To adjust the length, press the short rods and adjust the telescopic rod. The top of the telescopic rod connects to the operating section 2. Preferably, the telescopic structure of the handheld section 1 can also be a telescopic rod using existing hydraulic or pneumatic technology to achieve the positioning function, which will not be elaborated here.

[0030] In this embodiment, the connection between the handheld section 1 and the operating section 2 can be a fixed 90-degree vertical connection, which can basically cover most valve rotation auxiliary operations encountered in confined spaces in actual work. Preferably, it can also be configured as a rotatable connection, with a damping shaft between the operating section 2 and the handheld section 1 to achieve rotatable connection and positioning functions. The rotation plane of the damping shaft is perpendicular to the rotation plane of the valve handle operating rod 4. This prevents rotation between the handheld section 1 and the operating section 2 on the damping shaft when the valve handle operating rod 4 is rotated, thus avoiding ineffective force transmission. The damping shaft allows adjustment of the angle between the operating section 2 and the handheld section 1 by applying force, and maintains stability through damping force after the force is withdrawn, thereby achieving the positioning function.

[0031] In this embodiment, the handheld section 1 and the operating section 2 can be made of hollow stainless steel or aluminum alloy, or high-strength plastic, which ensures strength while reducing overall weight, thereby reducing the workload of the operator. An operating handle is provided at the bottom of the telescopic cylinder of the handheld section 1, and a rubber sleeve is provided on the operating handle to facilitate the operator's application of force.

[0032] In this embodiment, the operation method can have two locking methods depending on the specific situation. The valve handle operating rod 4 has a ball end 8 at its end. Depending on the actual site space, one method is to lock the entire valve handle operating rod 4 into two opposing limiting grooves 7, and then rotate the valve; the other method is to lock the valve handle operating rod 4 into only one limiting groove 7, while its ball end 8 is locked onto the base 5, and then rotate the valve. Both locking methods can be implemented by adjusting the upper or lower operating claw 3, and the method can be selected based on which is more convenient for the site conditions.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A valve handle extension tool for use in confined spaces, characterized in that: It includes an operating lever and an operating claw (3); the operating lever includes a hand-held section (1) and an operating section (2); there are two operating claws (3), which are fixed on the upper and lower sides of the operating section (2) away from the hand-held section (1) and are symmetrically arranged; the operating claws (3) are used to engage the valve handle operating lever (4).

2. The valve handle extension tool for use in confined spaces according to claim 1, characterized in that: The operating claw (3) is petal-shaped and includes a base (5) and a plurality of limiting claws (6) evenly arranged on the base (5); the plurality of limiting claws (6) are spaced apart on the edge of the base (5), and a limiting groove (7) is formed between two adjacent limiting claws (6).

3. The valve handle auxiliary extension operation tool for narrow spaces according to claim 2, characterized in that: The base (5) is circular; several limiting grooves (7) are opposite each other, and their connecting lines all pass through the center of the base (5).

4. The valve handle auxiliary extension operation tool for narrow spaces according to claim 2, characterized in that: The two side walls of the limiting groove (7) are symmetrical arc-shaped structures, and the arc direction spreads outward from the bottom to the top.

5. The valve handle extension tool for use in confined spaces according to claim 2, characterized in that: The handheld section (1) includes a telescopic cylinder and a telescopic rod; the telescopic rod is slidably connected inside the telescopic cylinder; the top end of the telescopic rod is connected to the operating section (2).

6. The valve handle auxiliary extension operation tool for narrow spaces according to claim 5, characterized in that: The telescopic rod is rotatably connected to one end of the operating section (2) via a damping shaft; the damping shaft can adjust the rotation angle between the operating section (2) and the telescopic rod.

7. The valve handle auxiliary extension operation tool for narrow spaces according to claim 6, characterized in that: The plane of rotation of the damping shaft is perpendicular to the plane of the base (5).

8. The valve handle auxiliary extension operation tool for narrow spaces according to claim 5, characterized in that: The telescopic cylinder is equipped with an operating handle at its bottom; the operating handle is fitted with a rubber sleeve.

9. The valve handle auxiliary extension operation tool for narrow spaces according to claim 5, characterized in that: The telescopic cylinder has several connecting holes evenly distributed along its length; the connecting holes are arranged in two rows.

10. The valve handle auxiliary extension operation tool for narrow spaces according to claim 9, characterized in that: The telescopic rod is provided with two short rods; the short rods are connected to the telescopic rod by springs, and can be embedded into the telescopic rod by pressing the short rods; the two short rods can be connected through the connecting holes to fix the telescopic rod inside the telescopic cylinder.

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