Gas valve key telescopic rod

Abstract

The utility model discloses a gas valve key telescopic rod which comprises a telescopic rod shell used for being held by a person. The telescopic assembly is arranged on the telescopic rod shell and comprises at least two telescopic rods which are connected in a sleeved mode, one telescopic rod is connected with the telescopic rod shell, the other telescopic rod is connected with the valve opening key, and the telescopic assembly is used for conducting telescopic adjustment and driving the valve opening key to move in the axial direction of the telescopic assembly; the locking part is arranged on the telescopic rod shell and used for limiting telescopic adjustment of the telescopic assembly; the winding assembly is arranged on the telescopic rod shell and used for controlling the telescopic rods of the telescopic assembly to stretch out and draw back synchronously. According to the underground valve, the winding assembly is arranged on the shell of the telescopic rod, and the telescopic rods on the telescopic assembly are controlled to stretch out and draw back synchronously, so that a maintainer can control the multiple sections of telescopic rods to be fixed or loosened only through one-time operation, the efficiency of closing the underground valve can be effectively improved, and the explosion risk during gas leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, and in particular to a gas valve key telescopic rod. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Buried valves are safety devices for gas pipeline projects, used to cut off, connect, and regulate gas in the pipeline. They have good control characteristics and sealing performance. In the event of a gas hazard, the buried valve can be shut off in an emergency using the valve key to reduce leakage. However, due to the depth of the valve well, opening the valve is inconvenient and poses a risk of suffocation.

[0004] To address the aforementioned issues, the current common practice is to use extendable gas valve stems to lengthen the gas valve key. However, since the extension and retraction of existing gas valve stems requires operation at the ends of each extension section, when the extension length is long, each section needs to be fixed or loosened. This results in a significant amount of adjustment time being consumed with each extension and retraction operation, which is not conducive to maintenance personnel quickly closing the valve in the event of a gas leak, increasing the risk of gas explosion. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a gas valve key telescopic rod that allows for the control of fixing or loosening multiple telescopic rod sections with a single operation.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a gas valve key telescopic rod, comprising:

[0007] The telescopic pole housing is for people to grip;

[0008] A telescopic assembly is disposed on the outer shell of a telescopic rod, and the telescopic assembly includes at least two telescopic rods that are nested together, one of which is connected to the outer shell of the telescopic rod and the other is connected to an opening valve key for telescopic adjustment, thereby driving the opening valve key to move along the axial direction of the telescopic assembly;

[0009] A locking component, located on the outer shell of the telescopic rod, is used to restrict the telescopic adjustment of the telescopic assembly;

[0010] The winding assembly, located on the outer shell of the telescopic pole, is used to control the synchronous extension and retraction of each telescopic pole in the telescopic assembly.

[0011] Furthermore, the telescopic rod housing has a telescopic groove inside. The telescopic assembly includes a fixed frame disposed in the telescopic groove and a first telescopic rod that can move up and down within the telescopic groove. The locking component is used to restrict the up and down movement of the first telescopic rod. A second telescopic rod that can move up and down within the first telescopic rod is disposed inside the first telescopic rod. The horizontal cross-section of both the first and second telescopic rods is polygonal. A fixed pulley is disposed at the top of the first telescopic rod. A connecting rope that passes through the fixed pulley is disposed between the top of the second telescopic rod and the bottom of the telescopic groove. A first compression spring is disposed between the fixed frame and the second telescopic rod. When the first compression spring is in an uncompressed state, the telescopic assembly is in its longest extended state.

[0012] Furthermore, the locking component includes two locking plates that are sleeved on the outside of the first telescopic rod and arranged in a mirror-symmetrical manner. Each locking plate has a locking hole that matches the external shape of the first telescopic rod and is larger than its external dimensions. The two locking plates are sleeved on the outside of the first telescopic rod through the locking holes. One end of each locking plate is rotatably connected to the telescopic rod housing, and a second compression spring is provided between the other end and the telescopic rod housing. The second compression spring pushes one end of the two locking plates closer together, causing the locking plates to abut against the outside of the first telescopic rod, preventing the first telescopic rod from moving due to friction. The locking component also includes a telescopic control button disposed on the telescopic rod housing. The telescopic control button is rotatably connected to the telescopic rod housing via a torsion spring. The telescopic control button has a pointed portion, and the telescopic rod housing has an opening for the pointed portion to insert into a telescopic groove. When the telescopic control button is rotated towards the side closer to the telescopic rod housing, the torsion spring gradually compresses, and the pointed portion inserts between the two locking plates, pushing the two locking plates to move to opposite sides, releasing the abutment between the locking plates and the first telescopic rod.

[0013] Furthermore, the winding assembly includes a winding shaft disposed on the top of the telescopic rod housing and passing through the telescopic rod housing. Two baffles and a pull rope located between the two baffles are fixedly disposed on the winding shaft. The end of the pull rope away from the winding shaft is connected to the second telescopic rod. A knob is fixedly disposed on the end of the winding shaft located outside the telescopic rod housing.

[0014] When the pull rope is in the retracted state, it can drive the second telescopic rod and the first telescopic rod to slide into the telescopic rod housing.

[0015] Furthermore, the winding assembly also includes a ratchet and tooth component for preventing the winding shaft from rotating to release the pull rope.

[0016] Furthermore, the ratchet and tooth component includes two ratchets fixedly mounted on the take-up shaft, with two baffles located between the two ratchets. The ratchet and tooth component also includes a U-shaped plate disposed at the bottom of the ratchet and a bracket detachably mounted on the telescopic rod housing. The U-shaped plate is movable towards and away from the ratchet. A through hole is provided on the U-shaped plate for inserting one end of the bracket. A guide post is disposed in the through hole, penetrating the bracket and connected to the U-shaped plate. A third compression spring is sleeved on the guide post at the top of the bracket. When the third compression spring is in its natural state, the U-shaped plate abuts against the ratchet.

[0017] The beneficial effects of this utility model are reflected in:

[0018] This invention, by setting a winding assembly on the outer shell of the telescopic rod, controls the synchronous extension and retraction of each telescopic rod on the telescopic assembly, so that maintenance personnel can control the fixing or loosening of multiple telescopic rods with only one operation, which can effectively improve the efficiency of closing buried valves and reduce the risk of explosion in the event of gas leakage. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a portion at point A shown;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a partial sectional view of the present invention.

[0023] In the picture:

[0024] 1. Telescopic assembly; 11. Fixing frame; 12. First telescopic rod; 13. Second telescopic rod; 14. Fixed pulley; 15. Connecting rope; 16. First compression spring;

[0025] 2. Locking component; 21. Locking plate; 22. Second compression spring; 23. Telescopic control button;

[0026] 3. Rewind assembly; 31. Rewind shaft; 32. Ratchet; 33. Baffle; 34. Knob; 35. U-shaped plate; 36. Bracket; 37. Guide post; 38. Third compression spring; 39. Pull cord;

[0027] 4. Telescopic pole housing. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figure 1-4 This utility model discloses a gas valve key telescopic rod, comprising:

[0030] Telescopic pole housing 4, for personnel to grip;

[0031] Telescopic assembly 1 is disposed on telescopic rod housing 4, and telescopic assembly 1 includes at least two telescopic rods that are sleeved together. One telescopic rod is connected to telescopic rod housing 4, and the other telescopic rod is connected to valve key for telescopic adjustment, thereby driving valve key to move along the axial direction of telescopic assembly 1.

[0032] Locking component 2 is provided on the telescopic rod housing 4 to restrict the telescopic adjustment of telescopic assembly 1;

[0033] The winding assembly 3 is mounted on the telescopic rod housing 4 and is used to control the synchronous extension and retraction of each telescopic rod of the telescopic assembly 1.

[0034] This invention, by setting a winding assembly 3 on the telescopic rod housing 4, controls the synchronous extension and retraction of each telescopic rod on the telescopic assembly 1, so that maintenance personnel can control the fixing or loosening of multiple telescopic rods with only one operation, which can effectively improve the efficiency of closing buried valves and reduce the risk of explosion in the event of gas leakage.

[0035] It should be noted that the telescopic rod housing 4 is equipped with a hook groove for assisting in prying up the manhole cover. When in use, the groove is inserted into the manhole cover of the buried valve, and the telescopic rod housing 4 is rotated to one side to pry up the manhole cover that is not easy to open using the lever principle.

[0036] In one embodiment, the telescopic rod housing 4 has a telescopic groove inside. The telescopic assembly 1 includes a fixed frame 11 disposed in the telescopic groove and a first telescopic rod 12 that can move up and down in the telescopic groove. A locking component 2 is used to restrict the up and down movement of the first telescopic rod 12. A second telescopic rod 13 that can move up and down in the first telescopic rod 12 is disposed inside the first telescopic rod 12. The horizontal cross-section of the first telescopic rod 12 and the second telescopic rod 13 are both polygonal. A fixed pulley 14 is disposed at the top of the first telescopic rod 12. A connecting rope 15 that passes through the fixed pulley 14 is disposed between the top of the second telescopic rod 13 and the bottom of the telescopic groove. A first compression spring 16 is disposed between the fixed frame 11 and the second telescopic rod 13. When the first compression spring 16 is in an uncompressed state, the telescopic assembly 1 is in its longest extended state.

[0037] This design utilizes the fixed pulley 14 and connecting rope 15 to link the first telescopic rod 12 and the second telescopic rod 13. When the second telescopic rod 13 moves downward, the connecting rope 15 causes the fixed pulley 14 and the first telescopic rod 12 to move downward together, thus enabling the first telescopic rod 12 and the second telescopic rod 13 to extend simultaneously. By locking the first telescopic rod 12 or the second telescopic rod 13 with the locking component 2, the entire telescopic assembly 1 can be locked. Compared with the current telescopic rod operation, which requires fixing or loosening each section, this design is more convenient and flexible. At the same time, since the horizontal cross-sections of the first telescopic rod 12 and the second telescopic rod 13 are both polygonal, after the first telescopic rod 12 and the second telescopic rod 13 extend, rotating the telescopic rod housing 4 can synchronously drive the first telescopic rod 12 and the second telescopic rod 13 to rotate, which can meet the operational requirements when opening and closing the gas valve.

[0038] In one embodiment, the locking component 2 includes two locking plates 21 that are sleeved on the outside of the first telescopic rod 12 and arranged in a mirror-symmetrical manner. Each locking plate 21 has a locking hole that matches the external shape of the first telescopic rod 12 and is larger than its external dimensions. The two locking plates 21 are sleeved on the outside of the first telescopic rod 12 through the locking holes. One end of each locking plate 21 is rotatably connected to the telescopic rod housing 4, and a second compression spring 22 is provided between the other end and the telescopic rod housing 4. The second compression spring 22 pushes one end of each locking plate 21 closer together, causing the locking plates 21 to abut against the first telescopic rod. On the outside of 12, friction prevents the first telescopic rod 12 from moving. The locking component 2 also includes a telescopic control button 23 disposed on the telescopic rod housing 4. The telescopic control button 23 is rotatably connected to the telescopic rod housing 4 via a torsion spring. The telescopic control button 23 is provided with a pointed part. The telescopic rod housing 4 has an opening for the pointed part to be inserted into the telescopic groove. When the telescopic control button 23 is rotated toward the side closer to the telescopic rod housing 4, the torsion spring is gradually compressed and the pointed part is inserted between the two locking plates 21, pushing the two locking plates 21 to move to the opposite side, releasing the contact between the locking plates 21 and the first telescopic rod 12.

[0039] This design uses the first compression spring 16 as the extension force for the second telescopic rod 13. When the first compression spring 16 is in its natural state, the second telescopic rod 13 is in its longest extended state. By retracting the second telescopic rod 13, the first compression spring 16 is compressed. At the required position, the locking component 2 locks the first telescopic rod 12, thus allowing the first telescopic rod 12 and the second telescopic rod 13 to be in a retracted state, meeting different extension requirements. Secondly, because the locking plate 21 of the locking component 2 is pushed against the first telescopic rod 12 by the second compression spring 22 in its natural state, the locking component 2 is in a locked state in its natural state. Only by pressing the telescopic control button 23, which inserts the telescopic control button 23 into the two locking plates 21, and causing the locking plates 21 to rotate and unlock the first telescopic rod 12, can the first telescopic rod 12 and the second telescopic rod 13 extend normally.

[0040] In one embodiment, the winding assembly 3 includes a winding shaft 31 disposed on the top of the telescopic rod housing 4 and passing through the telescopic rod housing 4. Two baffles 33 and a pull rope 39 located between the two baffles 33 are fixedly disposed on the winding shaft 31. One end of the pull rope 39 away from the winding shaft 31 is connected to the second telescopic rod 13. A knob 34 is fixedly disposed on the other end of the winding shaft 31 located outside the telescopic rod housing 4.

[0041] When the pull rope 39 is in the retracted state, it can drive the second telescopic rod 13 and the first telescopic rod 12 to slide into the telescopic rod housing 4.

[0042] This design allows users to rotate the knob 34 to drive the winding shaft 31 in both forward and reverse directions, thus winding and unwinding the pull rope 39. By controlling the length of the pull rope 39, the extension length of the first telescopic rod 12 and the second telescopic rod 13 can be controlled when the locking component 2 is unlocked. At the same time, because the winding shaft 31 is located on the top of the telescopic rod housing 4, users can operate the winding assembly 3 to wind and unwind the pull rope 39 from outside the valve well, effectively improving personnel safety during operation.

[0043] In practice, by connecting the motor to the knob 34, the controller can be used to control the motor to drive the winding shaft 31 to wind up and unwind the rope 39, thereby improving the ease of winding up and unwinding the rope 39.

[0044] In one embodiment, the take-up assembly 3 further includes a ratchet and tooth component for preventing the take-up shaft 31 from rotating to release the pull rope 39.

[0045] The ratchet and tooth assembly includes two ratchet wheels 32 fixedly mounted on the take-up shaft 31, two baffles 33 located between the two ratchet wheels 32, and a U-shaped plate 35 disposed at the bottom of the ratchet wheel 32 and a bracket 36 detachably mounted on the telescopic rod housing 4. The U-shaped plate 35 can move towards and away from the ratchet wheel 32. A through hole is provided on the U-shaped plate 35 for inserting one end of the bracket 36. A guide post 37 is disposed in the through hole, passing through the bracket 36 and connected to the U-shaped plate 35. A third compression spring 38 is sleeved on the guide post 37 located at the top of the bracket 36. When the third compression spring 38 is in its natural state, the U-shaped plate 35 abuts against the ratchet wheel 32.

[0046] This design means that the take-up shaft 31 can only rotate to one side under normal conditions. When rotating to the other side, it is restricted by the U-shaped plate 35 and the ratchet 32. Only by manually pressing down the U-shaped plate 35 to release the restriction can the take-up shaft 31 rotate to the other side.

[0047] In specific implementation, the direction in which the ratchet 32 ​​is restricted from rotating by the U-shaped plate 35 is set as the direction in which the pull rope 39 is released, thereby ensuring that the telescopic assembly 1 can maintain the set working length when working.

[0048] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0050] Additionally, "multiple" refers to two or more.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas valve key telescopic rod, characterized in that, include: Telescopic pole housing (4), for personnel to grip; Telescopic assembly (1) is disposed on telescopic rod housing (4), and the telescopic assembly (1) includes at least two telescopic rods that are sleeved together, one of which is connected to the telescopic rod housing (4), and the other is connected to the valve key for telescopic adjustment, thereby driving the valve key to move along the axial direction of the telescopic assembly (1); A locking component (2) is provided on the telescopic rod housing (4) to restrict the telescopic adjustment of the telescopic assembly (1); The winding assembly (3) is installed on the telescopic rod housing (4) and is used to control the synchronous extension and retraction of each telescopic rod of the telescopic assembly (1).

2. The gas valve key telescopic rod according to claim 1, characterized in that: The telescopic rod housing (4) has a telescopic groove inside. The telescopic assembly (1) includes a fixed frame (11) set in the telescopic groove and a first telescopic rod (12) that can move up and down in the telescopic groove. The locking component (2) is used to restrict the first telescopic rod (12) from moving up and down. A second telescopic rod (13) that can move up and down in the first telescopic rod (12) is provided inside the first telescopic rod (12). The horizontal cross-section of the first telescopic rod (12) and the second telescopic rod (13) are both polygonal. A fixed pulley (14) is provided at the top of the first telescopic rod (12). A connecting rope (15) that passes through the fixed pulley (14) is provided between the top of the second telescopic rod (13) and the bottom of the telescopic groove. A first compression spring (16) is provided between the fixed frame (11) and the second telescopic rod (13). When the first compression spring (16) is in an uncompressed state, the telescopic assembly (1) is in its longest extended state.

3. The gas valve key telescopic rod according to claim 2, characterized in that: The locking component (2) includes two locking plates (21) that are sleeved on the outside of the first telescopic rod (12) and arranged in a mirror-symmetric manner. The locking plates (21) have locking holes that match the external shape of the first telescopic rod (12) and are larger than the external dimensions of the first telescopic rod (12). The two locking plates (21) are sleeved on the outside of the first telescopic rod (12) through the locking holes. One end of the two locking plates (21) is rotatably connected to the telescopic rod housing (4), and a second compression spring (22) is provided between the other end and the telescopic rod housing (4). The second compression spring (22) pushes one end of the two locking plates (21) closer to each other and makes the locking plates (21) abut against the first telescopic rod (12). On the outside, friction prevents the first telescopic rod (12) from moving. The locking component (2) also includes a telescopic control button (23) on the telescopic rod housing (4). The telescopic control button (23) is rotatably connected to the telescopic rod housing (4) through a torsion spring. The telescopic control button (23) is provided with a pointed part. The telescopic rod housing (4) has an opening for the pointed part to be inserted into the telescopic groove. When the telescopic control button (23) is rotated toward the side closer to the telescopic rod housing (4), the torsion spring is gradually compressed and the pointed part is inserted between the two locking plates (21), and pushes the two locking plates (21) to move to the opposite side, releasing the contact between the locking plates (21) and the first telescopic rod (12).

4. The gas valve key telescopic rod according to claim 2, characterized in that: The winding assembly (3) includes a winding shaft (31) disposed on the top of the telescopic rod housing (4) and passing through the telescopic rod housing (4). Two baffles (33) and a pull rope (39) located between the two baffles (33) are fixedly disposed on the winding shaft (31). The end of the pull rope (39) away from the winding shaft (31) is connected to the second telescopic rod (13). A knob (34) is fixedly disposed on the end of the winding shaft (31) located outside the telescopic rod housing (4). When the pull rope (39) is in the retracted state, it can drive the second telescopic rod (13) and the first telescopic rod (12) to slide into the telescopic rod housing (4).

5. The gas valve key telescopic rod according to claim 4, characterized in that: The winding assembly (3) also includes a ratchet and tooth component for preventing the winding shaft (31) from rotating to release the pull rope (39).

6. The gas valve key telescopic rod according to claim 5, characterized in that: The ratchet and ratchet assembly includes two ratchets (32) fixedly mounted on the take-up shaft (31), and two baffles (33) located between the two ratchets (32). The ratchet and ratchet assembly also includes a U-shaped plate (35) disposed at the bottom of the ratchet (32) and a bracket (36) detachably mounted on the telescopic rod housing (4). The U-shaped plate (35) can move towards and away from the ratchet (32). The U-shaped plate (35) has a through hole for inserting one end of the bracket (36). A guide post (37) is disposed in the through hole, passing through the bracket (36) and connected to the U-shaped plate (35). A third compression spring (38) is sleeved on the guide post (37) located at the top of the bracket (36). When the third compression spring (38) is in its natural state, the U-shaped plate (35) abuts against the ratchet (32).

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