An elongated valve well key

Abstract

This utility model relates to an extended valve well key, comprising a hollow operating rod, a retractable extension rod, and a polygonal drive head connector. One end of the operating rod has a T-shaped crossbar grip, and the other end is sleeved with the extension rod. The extension rod is locked to the operating rod via a positioning pin, allowing for stepless length adjustment. The grip is a sleeve that slides onto the force-applying rod; when not in use, the force-applying rod can be stored in a fixing ring on the side of the operating rod. With this structure, this key can adapt to valve wells of different depths, solving the problem of insufficient height of traditional tools. Stainless steel and aluminum alloy materials ensure corrosion resistance, and the polygonal drive head's anti-slip texture design improves operational stability. A single person can quickly open and close the valve, significantly improving efficiency compared to traditional splicing tools and avoiding the risk of loose connections, ensuring safe maintenance of gas valves.

Description

Technical Field

[0001] This utility model relates to the technical field of gas valve well maintenance equipment, and more specifically, to an extended valve well key. Background Technology

[0002] Gas valve wells are an important component of urban gas transmission and distribution systems. During routine maintenance of these wells, especially deeper ones, the key height of ordinary valve wells is insufficient to effectively open and close the valves, posing significant challenges to maintenance work. Traditional solutions often involve temporary splicing tools, but this method suffers from unstable connections, inconvenient operation, low efficiency, and safety hazards, failing to meet the demands for high efficiency and safety in practical work. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and to propose an extended valve well key, comprising:

[0004] The control lever is hollow inside; one end of the control lever is provided with a grip part of a T-shaped crossbar structure for easy holding, and the other end of the control lever is connected to an extension rod;

[0005] An extension rod is provided with multiple limiting holes, and a connector is fixedly welded to the end of the extension rod away from the operating rod;

[0006] The connector has a polygonal drive head inside that is adapted to the valve operation interface.

[0007] Preferably, the gripping part is a horizontally placed sleeve, and a force-applying rod is slidably sleeved inside the sleeve.

[0008] Preferably, the operating lever is provided with a fixing collar on its side to facilitate the insertion of the force-applying lever.

[0009] Preferably, the operating rod has a positioning pin hole, and the diameter of the positioning pin hole is the same as that of the limiting hole on the extension rod; the positioning pin hole and the limiting hole are equipped with the same positioning pin shaft.

[0010] Preferably, the length of the force-applying rod is L1, the distance between the upper surface of the connector and the collar of the topmost fixing collar is L2, and L1≥L2.

[0011] Preferably, the operating lever, extension lever, connector, sleeve, and force-applying lever are all made of stainless steel or high-strength aluminum alloy.

[0012] Compared with existing technologies, the beneficial effects of this utility model are:

[0013] 1. By inserting an extension rod and adjusting its extension length, it can adapt to valve wells of different depths, effectively solving the problem of insufficient height of ordinary valve well keys and expanding the application range of valve well keys.

[0014] 2. Operators can quickly adjust the key length and operate the valve. The structure is stable and easy to operate. Compared with traditional temporary splicing tools, it greatly improves work efficiency and reduces maintenance time.

[0015] 3. The reliable connection structure and fixing method avoid safety hazards such as tool loosening or falling off during operation, ensuring the personal safety of operators and the smooth operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an extended valve well key proposed in this utility model (force application rod in use).

[0017] Figure 2 This is a schematic diagram of the overall structure of an extended valve well key proposed in this utility model (force bar retracted). Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Referring to the figure, this embodiment provides an extended valve well key, including:

[0020] The operating lever 1 is hollow inside; one end of the operating lever 1 is provided with a grip part 2 of a T-shaped crossbar structure for easy gripping, and the other end of the operating lever is connected to an extension rod 3;

[0021] An extension rod 3 is provided with multiple limiting holes 4, and a connector 5 is fixedly welded to the end of the extension rod 3 away from the operating rod 1;

[0022] The connector 5 has a bottom-opening structure, and the bottom inner cavity of the connector 5 is provided with a polygonal drive head adapted to the valve operation interface.

[0023] Furthermore, the gripping part 2 is a horizontally positioned sleeve 6, and a force-applying rod 7 is slidably connected inside the sleeve 6. In actual operation, the length of the force-applying rod on both sides can be adjusted according to the actual situation to facilitate the operator in applying force.

[0024] Furthermore, the operating lever 1 is provided with a retaining collar 8 on its side for easy insertion of the force-applying lever. The retaining collar 8 allows the force-applying lever to be inserted into the retaining collar when not in use, thus saving storage space.

[0025] Furthermore, the operating lever 1 has a positioning pin hole 9, and the diameter of the positioning pin hole 9 is the same as that of the limiting hole 4 on the extension rod 3; the positioning pin hole 9 and the limiting hole 4 are equipped with the same positioning pin shaft 10. The positioning pin shaft facilitates the positioning of the extension rod, thereby facilitating subsequent operation.

[0026] Furthermore, the length of the force-applying rod is L1, and the distance between the upper surface of the connector 5 after retraction and fixation and the collar of the topmost fixing collar is L2, and L1≥L2. Here, L1≥L2 further ensures that after the force-applying rod is retracted, the bottom of the force-applying rod can abut against the top of the connector, ensuring that it will not slip out from the bottom.

[0027] Furthermore, the operating lever, extension lever, connector, sleeve, and force-applying lever are all made of stainless steel or high-strength aluminum alloy.

[0028] In specific implementation of the above embodiments,

[0029] First, unfold the extension rod: pull the extension rod (3) out of the hollow cavity of the operating rod (1) and adjust it to a suitable length according to the depth of the valve well.

[0030] Then, insert the positioning pin (10) into the overlapping position of the positioning pin hole (9) of the operating rod and the limiting hole (4) of the extension rod, and lock them after ensuring that they are fully aligned to prevent slippage during use.

[0031] Next, remove the force-applying rod (7) from the fixing collar (8) on the side of the operating rod and check whether the rod is deformed or damaged. Then insert the force-applying rod (7) laterally into the sliding groove of the grip sleeve (6) and adjust the exposed length at both ends according to the actual situation.

[0032] Finally, vertically insert the polygonal drive head (such as a square or hexagonal one) at the bottom of the connector (5) into the valve operating interface to ensure a perfect fit. Hold both ends of the force-applying rod (7) with both hands and slowly apply rotational force in the valve opening / closing direction to avoid slippage caused by sudden force.

[0033] When it needs to be stored away

[0034] First, disassemble the force-applying rod: After the operation is completed, pull the force-applying rod (7) out of the sleeve (6), clean it and put it back into the fixed collar (8).

[0035] Then, pull out the positioning pin (10), slowly push the extension rod (3) into the inner cavity of the operating rod (1) until it is fully retracted, and lock it in the inner cavity of the operating rod with the positioning pin.

[0036] In the above embodiments and working principles, this device has the following advantages over traditional valve well keys:

[0037] 1. By inserting an extension rod and adjusting its extension length, it can adapt to valve wells of different depths, effectively solving the problem of insufficient height of ordinary valve well keys and expanding the application range of valve well keys.

[0038] 2. Operators can quickly adjust the key length and operate the valve. The structure is stable and easy to operate. Compared with traditional temporary splicing tools, it greatly improves work efficiency and reduces maintenance time.

[0039] 3. The reliable connection structure and fixing method avoid safety hazards such as tool loosening or falling off during operation, ensuring the personal safety of operators and the smooth operation.

[0040] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.

[0041] Furthermore, it should be understood in the description of this utility model that 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, and are not intended to 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.

[0042] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An extended valve well key, characterized in that, include: The control lever is hollow inside; one end of the control lever is provided with a grip part of a T-shaped crossbar structure for easy holding, and the other end of the control lever is connected to an extension rod; An extension rod is provided with multiple limiting holes, and a connector is fixedly welded to the end of the extension rod away from the operating rod; The connector has a polygonal drive head inside that is adapted to the valve operation interface.

2. The extended valve well key according to claim 1, characterized in that, The gripping part is a horizontally placed sleeve, and a force-applying rod is slidably connected inside the sleeve.

3. The extended valve well key according to claim 1, characterized in that, The operating lever is provided with a fixing collar on its side for easy insertion of the force application lever.

4. An extended valve well key according to claim 1, characterized in that, The operating lever has a positioning pin hole, and the diameter of the positioning pin hole is the same as that of the limiting hole on the extension rod; the positioning pin hole and the limiting hole are equipped with the same positioning pin shaft.

5. An extended valve well key according to claim 2, characterized in that, The length of the force-applying rod is L1, and the distance between the upper surface of the connector and the topmost fixed collar is L2, and L1≥L2.

6. An extended valve well key according to claim 1, characterized in that, The operating lever, extension lever, connector, sleeve, and force-applying lever are all made of stainless steel or high-strength aluminum alloy.

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