CN221238931U - Gas detection auxiliary device suitable for cable worker underground operation - Google Patents
Gas detection auxiliary device suitable for cable worker underground operation Download PDFInfo
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- CN221238931U CN221238931U CN202322868484.9U CN202322868484U CN221238931U CN 221238931 U CN221238931 U CN 221238931U CN 202322868484 U CN202322868484 U CN 202322868484U CN 221238931 U CN221238931 U CN 221238931U
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- wellhead
- well head
- hanging rope
- positioning rod
- gas detection
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- 238000012544 monitoring process Methods 0.000 description 1
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- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
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Abstract
The utility model discloses a gas detection auxiliary device suitable for underground operation of a cable work well, which comprises a wellhead positioning rod and a hanging rope, wherein the wellhead positioning rod extends along the diameter direction of the wellhead and passes through the center point of the wellhead, two ends of the wellhead positioning rod are radially elastically propped and axially lapped at the inlet of the cable work well, and the middle part of the wellhead positioning rod is movably connected with the hanging rope; the scale is coated on the hanging rope, the gas detector is fixedly connected to one end of the hanging rope, which is positioned in the wellhead, and one end of the hanging rope, which is positioned outside the wellhead, is connected with the receiving paying-off device. The device effectively improves the underground gas detection efficiency, avoids the instrument to strike the well wall, avoids 'upper, middle and lower three points' from missing detection and false detection, and has simple structure and easy realization.
Description
Technical Field
The utility model relates to the technical field of underground detection, in particular to a gas detection auxiliary device suitable for underground operation of a cable worker.
Background
The cable work well operation belongs to limited space operation, and according to the safety requirements of 'ventilation, detection and operation after' of limited space operation, before operation starts, toxic and harmful gas detection is needed, and after the detection is qualified, the cable work well operation can be carried out. The operator uses the poisonous and harmful gas detector to start at the entrance and the exit of the cable work well, and the operator performs detection in the vertical direction from top to bottom along the direction that the operator enters the cable work well, at least performs three points of top, middle and bottom. The current operation method is that one end of a connecting wire is used for binding the gas detector, a worker holds the other end of the connecting wire, hangs the gas detector down into a well from a well mouth, controls the paying-off length, enables the detector to stay at the position in the vertical direction of the inlet of the working well, and enables the worker to conduct gas detection and recording at each position.
However, as the worker lowers the connecting line and the gas detector at the well edge, the gas detector is close to the well edge, and the gas detector is easy to strike the well wall due to swinging in the lowering process, on one hand, the instrument is easy to damage, or the instrument is easy to fall; on the other hand, operation convenience degree is relatively poor, because the in-process of releasing the gas detector needs both hands to cooperate to accomplish, and the operation of relevant instrument, record data etc. then need other personnel to cooperate to accomplish, takes up manpower, inefficiency. In the detection of the upper, middle and lower three points, the instrument needs to be kept stand for a while at the height so as to collect the gas, and the instrument is laborious to carry with the hand.
Therefore, how to design a gas detection auxiliary device suitable for cable workers underground operation, the problem that a gas detector swings to strike the well wall is avoided, the labor intensity of workers can be further reduced, and the detection precision and efficiency are improved, so that the gas detection auxiliary device is a technical problem to be solved by the workers in the field.
Disclosure of utility model
The utility model aims to solve the defects of the prior art, and provides a gas detection auxiliary device suitable for underground operation of a cable worker, which effectively improves underground gas detection efficiency, avoids an instrument from striking a well wall, avoids 'upper, middle and lower three points' from missing detection and false detection, and has simple structure and easy realization.
The gas detection auxiliary device comprises a wellhead positioning rod and a hanging rope, wherein the wellhead positioning rod extends along the diameter direction of a wellhead and passes through the center point of the wellhead, two ends of the wellhead positioning rod are radially elastically jacked and axially lapped at the inlet of a cable working well, and the middle part of the wellhead positioning rod is movably hung with the hanging rope; the scale is coated on the hanging rope, the gas detector is fixedly connected to one end of the hanging rope, which is positioned in the wellhead, and one end of the hanging rope, which is positioned outside the wellhead, is connected with the receiving paying-off device.
Preferably, one end of the well head locating rod is fixedly provided with a fixed lapping block, the other end of the well head locating rod is axially and elastically sleeved with a movable lapping block in a sliding manner, and an elastic locking unit for providing axial displacement power for the movable lapping block is connected to the well head locating rod in an adjusting manner.
Preferably, the elastic locking unit comprises a locking sleeve and a propping spring, wherein the locking sleeve is in threaded engagement and sleeved on the circumferential outer wall of the wellhead positioning rod, and the propping spring is fixedly supported on one axial end surface of the locking sleeve; the other axial end face of the supporting spring is elastically supported on the axial end face of the movable lapping block.
Preferably, the outer wall of the well head locating rod is provided with external threads connected with the locking sleeve.
Preferably, the well head locating rod is radially penetrated and rotatably movably inserted with a U-shaped hanging frame, the top opening of the U-shaped hanging frame is provided with a limiting hanging rope, and the bottom of the U-shaped hanging frame is fixedly provided with an inserting rod.
Preferably, the middle part of the wellhead positioning rod is provided with a plurality of positioning holes which are arranged at intervals, and the positioning holes are movably inserted with the inserted rod at the bottom of the U-shaped hanging frame.
The utility model has the advantages and technical effects that:
The utility model relates to a gas detection auxiliary device suitable for underground operation of a cable worker, which positions a hanging point of a hanging rope above a wellhead through a wellhead positioning rod, and has the following specific effects that: 1. the hanging points of the hanging rope are axially positioned, and as the graduated scale is coated on the hanging rope, the sliding hanging position and the datum point of the U-shaped hanging frame and the hanging rope are used for positioning the depth dimension of the hanging rope penetrating into the well, so that an operator on the well can conveniently position the upper, middle and lower three points in the well, and then gas monitoring is carried out; 2. the hanging point of the hanging rope is radially positioned, so that the hanging point of the hanging rope is positioned at the center of the wellhead, and the gas detector is prevented from striking the well wall; 3. the mechanical positioning hanging point of the hanging rope is difficult to avoid the swinging problem of the gas detector when the hanging rope is put down because the winding and unwinding device is held by a worker, so that the U-shaped hanging frame is designed to serve as a fixed hanging position, and the stress of the hand action of the worker is prevented from being transmitted to the gas detector through the hanging rope; 4. the radial elastic jacking structure of the wellhead positioning rod is convenient to disassemble and assemble, improves the efficiency of multi-well detection of workers, and reduces the positioning difficulty.
Drawings
Fig. 1 is a front view of the present utility model (tunnel 1 schematic);
FIG. 2 is a schematic view of a U-shaped hanger according to the present utility model;
In the figure: 1-fixing a lapping block; 2-a wellhead positioning rod; 3-U-shaped hanging frames; 4-hanging ropes; 5-a graduated scale; 6-a wire winding and unwinding device; 7-external threads; 8-movable lapping blocks; 9-supporting a spring; 10-locking the sleeve; 11-a gas detector; 12-positioning holes; 13-insert rod.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a gas detection auxiliary device suitable for cable worker underground operation, includes well head locating lever 2 and string 4, and wherein well head locating lever extends along the diameter direction of well head and passes through the central point of well head, and the radial elasticity of this well head locating lever both ends is propped and the axial overlap joint is in cable worker well's import department, and the middle part activity of well head locating lever articulates string; the hanging rope is coated with a graduated scale 5, one end of the hanging rope, which is positioned inside the wellhead, is fixedly connected with a gas detector 11, and one end of the hanging rope, which is positioned outside the wellhead, is connected with a coiling and uncoiling device 6.
Preferably, one end of the well head locating rod is fixedly provided with a fixed lapping block 1, the other end of the well head locating rod is axially and elastically sleeved with a movable lapping block 8, and an elastic locking unit for providing axial displacement power for the movable lapping block is connected to the well head locating rod in an adjusting manner.
Preferably, the elastic locking unit comprises a locking sleeve 10 and a propping spring 9, wherein the locking sleeve is in threaded engagement and sleeved on the circumferential outer wall of the wellhead positioning rod, and one axial end surface of the locking sleeve is fixedly used for supporting the propping spring; the other axial end face of the supporting spring is elastically supported on the axial end face of the movable lapping block.
Preferably, the outer circumferential wall of the wellhead positioning rod is provided with external threads 7 for connecting the locking sleeve.
Preferably, the wellhead positioning rod is radially penetrated and rotatably movably inserted with a U-shaped hanging frame 3, the top opening of the U-shaped hanging frame is provided with a limiting hanging rope at the opening of the U-shaped hanging frame, and the bottom of the U-shaped hanging frame is fixedly provided with an inserting rod 13.
Preferably, a plurality of locating holes 12 which are arranged at intervals are formed in the middle of the wellhead locating rod, and the locating holes are movably inserted into the inserted rod at the bottom of the U-shaped hanging frame.
In addition, the well head positioning rod is preferably a multi-section sequentially spliced telescopic rod, and if the diameter of the well head is about 800-900 mm, the well head positioning rod at least comprises three sections of sequentially spliced telescopic rods, and the length of each section of telescopic rod is about 270-300 mm, so that the well head positioning rod is convenient to pack and carry.
In order to more clearly describe the specific embodiments of the present utility model, an example is provided below:
The utility model relates to a gas detection auxiliary device suitable for underground operation of a cable worker, which is characterized in that when in use, a worker overlaps a fixed overlapping block at one end of a well head positioning rod on one side of a well head, overlaps a movable overlapping block on the other side of the well head, and then rotates a locking sleeve to enable the locking sleeve to axially compress a jacking spring, and the movable overlapping block is elastically jacked by the compression force of the jacking spring; then, a worker holds the winding and unwinding device in the prior art by hand, and hangs the middle section of the hanging rope into the U-shaped hanging frame, and the gas detector at the bottom of the hanging rope is driven by the gravity of the gas detector to be hung at the axial center of the cable work well.
In addition, as the movable lapping block is axially and slidably sleeved on the wellhead positioning rod, the distance between the movable lapping block and the fixed lapping block is not fixed and is used for adaptively checking cable working wells with different diameters; and a plurality of locating holes that well head locating lever middle part interval set up are convenient for adjust the mounted position of U-shaped stores pylon, and it is advisable to be as close to the central line of cable worker well as possible.
Finally, the inexhaustible points of the utility model adopt mature products and mature technical means in the prior art.
In the description of the present specification, the descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in the embodiments or examples of the present utility model.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. Gas detection auxiliary device suitable for cable worker underground operation, its characterized in that: the well head positioning rod extends along the diameter direction of the well head and passes through the center point of the well head, two ends of the well head positioning rod are radially elastically jacked and axially lapped at the inlet of the cable work well, and the middle part of the well head positioning rod is movably articulated with the hanging rope; the scale is coated on the hanging rope, the gas detector is fixedly connected to one end of the hanging rope, which is positioned in the wellhead, and one end of the hanging rope, which is positioned outside the wellhead, is connected with the receiving paying-off device.
2. A gas detection aid for use in wireline downhole operations according to claim 1, wherein: the fixed piece of lapping is set firmly to the one end of well head locating lever, and the other end axial elastic sliding sleeve of well head locating lever is equipped with the activity piece of lapping, and adjusts on the well head locating lever and be connected with the elasticity locking unit that provides axial displacement power for the activity piece of lapping.
3. A gas detection aid for use in wireline downhole operations according to claim 2, wherein: the elastic locking unit comprises a locking sleeve and a propping spring, wherein the locking sleeve is in threaded engagement and sleeved on the circumferential outer wall of the wellhead positioning rod, and the propping spring is fixedly supported on one axial end surface of the locking sleeve; the other axial end face of the propping spring is elastically propped against the axial end face of the movable lapping block.
4. A gas detection aid for use in wireline downhole operations according to claim 3, wherein: and an external thread connected with the locking sleeve is formed on the circumferential outer wall of the wellhead positioning rod.
5. A gas detection aid for use in wireline downhole operations according to claim 2, wherein: the well head locating rod is radially penetrated and rotatably movably inserted with a U-shaped hanging frame, the top of the U-shaped hanging frame is provided with an opening, the inside of the U-shaped hanging frame is limited and connected with a hanging rope, and the bottom of the U-shaped hanging frame is fixedly provided with an inserting rod.
6. A gas detection aid for use in wireline downhole operations according to claim 5, wherein: the middle part of well head locating lever has seted up a plurality of locating holes that the interval set up, the inserted bar of the interior activity grafting U-shaped stores pylon bottom of this locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322868484.9U CN221238931U (en) | 2023-10-25 | 2023-10-25 | Gas detection auxiliary device suitable for cable worker underground operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322868484.9U CN221238931U (en) | 2023-10-25 | 2023-10-25 | Gas detection auxiliary device suitable for cable worker underground operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221238931U true CN221238931U (en) | 2024-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322868484.9U Active CN221238931U (en) | 2023-10-25 | 2023-10-25 | Gas detection auxiliary device suitable for cable worker underground operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221238931U (en) |
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2023
- 2023-10-25 CN CN202322868484.9U patent/CN221238931U/en active Active
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