Downhole overhaul protection device

Abstract

The utility model discloses a protection device for underground overhaul, which relates to the technical field of urban municipal overhaul facilities, can prevent constructors from falling and does not influence normal construction actions. A downhole overhaul protection device comprises a fixing module, a follow-up trolley and a brake assembly. And the fixing module is embedded into civil engineering. The follow-up trolley is arranged in the fixing module in a sliding mode. And the brake assembly is arranged on the follow-up trolley. The brake assembly is used for braking the follow-up trolley. The follow-up trolley can continuously move and operate along the fixing module along with the constructor, when the constructor falls down at a high speed, the brake assembly can lock the follow-up trolley on the fixing module, the constructor is protected, and the constructor is prevented from falling down.

Description

Technical Field

[0001] The utility model relates to the technical field of urban municipal maintenance facilities, in particular to a downhole maintenance protection device. Background Art

[0002] Some urban buildings are restricted by building space or functional factors and cannot expand their internal space. For example, coarse screen wells have a conventional groove width of 0.8 to 3.0 m and a groove depth of 3.0 to 10.0 m. Coarse screen wells have the characteristics of deep grooves, small groove widths, slippery inner walls, and toxic and harmful gases. When maintenance personnel go down the well, they should pay special attention to their personal safety. However, due to the small groove width of some coarse screen wells, there is no space for installing ladder cages, which will greatly increase the related maintenance risks. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a downhole maintenance protection device which can prevent construction workers from falling without affecting normal construction actions.

[0004] According to a first aspect of the utility model, a downhole maintenance protection device is provided, comprising a fixed module embedded in civil engineering; a follower trolley slidably arranged in the fixed module; and a brake assembly arranged on the follower trolley, wherein the brake assembly is used to stop the follower trolley.

[0005] A downhole maintenance protection device according to an embodiment of the utility model has at least the following beneficial effects: A downhole maintenance protection device includes a fixed module, a follower trolley and a brake assembly. The fixed module is embedded in the civil engineering. The follower trolley is slidably arranged in the fixed module. The brake assembly is arranged on the follower trolley. The brake assembly is used to stop the follower trolley. The follower trolley can move continuously along the fixed module with the construction personnel. When the construction personnel fall at high speed, the brake assembly can lock the follower trolley on the fixed module to protect the construction personnel and prevent them from falling.

[0006] According to a downhole maintenance protection device described in the utility model, the fixing module includes a channel steel and a perforated steel plate. The perforated steel plates are in two groups. The two groups of perforated steel plates are respectively arranged on two opposite surfaces on the inner side of the channel steel. The follower trolley slides closely against the perforated steel plates.

[0007] According to the underground maintenance protection device described in the utility model, the follower trolley includes a frame and wheels, the wheels are rotatably arranged on both sides of the frame, and the wheels move closely against the perforated steel plate.

[0008] According to a mine maintenance protection device described in the utility model, the brake assembly includes a trolley fixing mechanism and a wheel fixing mechanism, the trolley fixing mechanism is used to fix the relative displacement between the follower trolley and the fixing module, and the wheel fixing mechanism is used to fix the relative rotation between the wheel and the frame.

[0009] According to a mine maintenance protection device described in the utility model, the trolley fixing mechanism includes a driving rod group, a thimble, a spring assembly and a personnel connecting mechanism, the driving rod group includes two groups of horizontal driving rods and four groups of hinged rods, the two groups of horizontal driving rods and the four groups of hinged rods are connected end to end to form the driving rod group, the two groups of horizontal driving rods are opposite to each other, there are two thimbles, one end of the thimble is connected to the hinge of the two groups of hinged rods, the two ends of the spring assembly are connected to the two groups of horizontal driving rods, the spring assembly drives the two groups of horizontal driving rods to move away from each other, one end of the personnel connecting mechanism is connected to the two groups of horizontal driving rods, and the other end of the personnel connecting mechanism is connected to the construction personnel. When the construction personnel fall quickly, the personnel connecting mechanism drives the two groups of horizontal driving rods to approach quickly, so that the two groups of thimbles are inserted into the holes of the perforated steel plate.

[0010] According to a mine maintenance protection device described in the utility model, the personnel connection mechanism includes steel wire ropes and pulleys. There are two steel wire ropes and two groups of pulleys. One end of the two steel wire ropes is respectively connected to a group of horizontal drive rods, and the other end is connected to the construction personnel. The two steel wire ropes are respectively wound around a group of pulleys, and the pulleys are used to change the direction of the steel wire ropes.

[0011] According to the underground maintenance protection device described in the utility model, a plurality of spokes are provided on the wheel, and the wheel fixing mechanism is connected to the ejector pin. When the ejector pin is recovered, the wheel fixing mechanism is inserted between the spokes to limit the rotation of the wheel during construction.

[0012] According to the underground maintenance protection device described in the utility model, a plurality of auxiliary wheels are also provided on the follower trolley.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of the follower trolley in a preferred embodiment of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 A side view of a preferred embodiment of the utility model;

[0019] Figure 5 This is a top view of a preferred embodiment of the utility model (initial state of the follower trolley);

[0020] Figure 6 This is a top view of a preferred embodiment of the utility model (the follower trolley is locked);

[0021] Figure 7 It is a top view of the wheel fixing mechanism of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figures 1 to 7A downhole maintenance protection device includes a fixed module 10, a follower trolley 20 and a brake assembly 30. The fixed module 10 is embedded in the civil engineering. The follower trolley 20 is slidably arranged in the fixed module 10. The brake assembly 30 is arranged on the follower trolley 20. The brake assembly 30 is used to stop the follower trolley 20.

[0027] It can be understood that the follower trolley 20 can move continuously along the fixed module 10 with the construction workers. When the construction workers fall at high speed, the brake assembly 30 can lock the follower trolley 20 on the fixed module 10 to protect the construction workers and prevent them from falling.

[0028] Reference Figures 1 to 7 The fixed module 10 includes a channel steel 11 and a perforated steel plate 12. The perforated steel plates 12 are in two groups. The two groups of perforated steel plates 12 are respectively arranged on two opposite surfaces of the inner side of the channel steel 11. The follower trolley 20 slides closely against the perforated steel plates 12.

[0029] It should be noted that, in the embodiment of the present invention, the perforated steel plate 12 is provided with evenly distributed through holes.

[0030] Reference Figures 1 to 7 The follower trolley 20 includes a frame 21 and wheels 22. The wheels 22 are rotatably arranged on both sides of the frame 21. The wheels 22 move close to the perforated steel plate 12.

[0031] Reference Figures 1 to 7 The brake assembly 30 includes a trolley fixing mechanism 31 and a wheel fixing mechanism 32. The trolley fixing mechanism 31 is used to fix the relative displacement between the follower trolley 20 and the fixing module 10. The wheel fixing mechanism 32 is used to fix the relative rotation between the wheel 22 and the frame 21.

[0032] It is worth noting that the wheel fixing mechanism 32 can limit the relative rotation between the wheel 22 and the frame 21 when the construction personnel stop moving. When the construction personnel move at a low speed, the wheel fixing mechanism 32 can be unlocked without starting the trolley fixing mechanism 31, so as to realize free mobile construction.

[0033] Reference Figures 1 to 7The trolley fixing mechanism 31 includes a driving rod group 311, a pin 312, a spring assembly 313 and a personnel connection mechanism 314. The driving rod group 311 includes two groups of horizontal driving rods 311a and four groups of hinged rods 311b. The two groups of horizontal driving rods 311a and the four groups of hinged rods 311b are connected end to end to form the driving rod group 311. The two groups of horizontal driving rods 311a are opposite. There are two pins 312. One end of the pin 312 is connected to the hinge of the two groups of hinged rods 311b. The two ends of the spring assembly 313 are connected to the two groups of horizontal driving rods 311a. The spring assembly 313 drives the two groups of horizontal driving rods 311a to move away from each other. One end of the personnel connection mechanism 314 is connected to the two groups of horizontal driving rods 311a. The other end of the personnel connection mechanism 314 is connected to the construction personnel. When the construction workers fall rapidly, the personnel connection mechanism 314 drives the two sets of horizontal driving rods 311 a to move rapidly closer, so that the two sets of ejector pins 312 are inserted into the holes of the perforated steel plate 12 .

[0034] It can be understood that in the embodiment of the present utility model, the two groups of horizontal drive rods 311a and the four groups of hinged rods 311b form a hexagon, each connection point of the hexagon is hinged, and the two groups of horizontal drive rods 311a are respectively located on two opposite sides of the hexagon and are parallel to each other. When the personnel connection mechanism 314 pulls the two groups of horizontal drive rods 311a closer to each other, it drives the two groups of ejector pins 312 away from each other. When there is no external force, the spring assembly 313 can reset the two groups of horizontal drive rods 311a, and the wheel fixing mechanism 32 resets and locks the wheel 22.

[0035] Reference Figures 1 to 7 The personnel connection mechanism 314 includes a steel wire rope 314a and a pulley 314b. There are two steel wire ropes 314a. There are two groups of pulleys 314b. One end of the two steel wire ropes 314a is respectively connected to a group of horizontal driving rods 311a, and the other end is connected to the construction personnel. The two steel wire ropes 314a are respectively wound around a group of pulleys 314b. The pulleys 314b are used to change the direction of the steel wire ropes 314a.

[0036] It can be understood that the construction personnel and the follower trolley 20 can be connected by the steel wire rope 314a, the movement direction of the steel wire rope 314a can be changed by the pulley 314b, and pulling the two steel wire ropes 314a can make the two sets of horizontal driving rods 311a approach each other.

[0037] Reference Figures 1 to 7 , a plurality of spokes 221 are provided on the wheel 22. The wheel fixing mechanism 32 is connected to the ejector pin 312. When the ejector pin 312 is recovered, the wheel fixing mechanism 32 is inserted between the spokes 221 to limit the rotation of the wheel 22 during construction.

[0038] It is worth mentioning that in the initial state of the follower trolley 20, the wheel fixing mechanism 32 is inserted into the gap between the spokes 221 to lock the wheel 22. When the staff moves, the wire rope 314a drives the two sets of horizontal drive rods 311a to slightly approach each other. At this time, the ejector pin 312 is not extended far enough to be inserted into the perforated steel plate 12, and the wheel fixing mechanism 32 moves from the edge of the wheel 22 to the center of the wheel 22, completing the unlocking of the wheel 22, so that the wheel 22 can rotate freely, and then the follower trolley 20 can move with the staff.

[0039] When the worker falls rapidly, the steel wire rope 314 a drives the two sets of horizontal driving rods 311 a to approach quickly, and the ejector pin 312 extends out and inserts into the perforated steel plate 12 to complete the locking of the follower trolley 20 .

[0040] Reference Figures 1 to 7 A plurality of auxiliary wheels 23 are also provided on the follower trolley 20 .

[0041] It should be noted that the auxiliary wheels 23 can fill the gap between the follower trolley 20 and the fixed module 10 , and the damping of the follower trolley 20 moving in the fixed module 10 can be adjusted by adjusting the tension of the auxiliary wheels 23 .

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A downhole maintenance protection device, characterized in that: include: A fixed module (10) is embedded in the civil engineering; A follower trolley (20) is slidably disposed in the fixed module (10); A brake assembly (30) is arranged on the follower trolley (20), and the brake assembly (30) is used to stop the follower trolley (20).

2. A downhole maintenance protection device according to claim 1, characterized in that: The fixing module (10) comprises a channel steel (11) and a perforated steel plate (12), wherein the perforated steel plate (12) is in two groups, and the two groups of perforated steel plates (12) are respectively arranged on two opposite surfaces on the inner side of the channel steel (11), and the follower trolley (20) slides closely against the perforated steel plate (12).

3. A downhole maintenance protection device according to claim 2, characterized in that: The follower trolley (20) comprises a frame (21) and wheels (22). The wheels (22) are rotatably arranged on both sides of the frame (21), and the wheels (22) move closely against the perforated steel plate (12).

4. A downhole maintenance protection device according to claim 3, characterized in that: The brake assembly (30) comprises a trolley fixing mechanism (31) and a wheel fixing mechanism (32), wherein the trolley fixing mechanism (31) is used to fix the relative displacement between the follower trolley (20) and the fixing module (10), and the wheel fixing mechanism (32) is used to fix the relative rotation between the wheel (22) and the frame (21).

5. A downhole maintenance protection device according to claim 4, characterized in that: The trolley fixing mechanism (31) comprises a driving rod group (311), a thimble (312), a spring assembly (313) and a personnel connection mechanism (314); the driving rod group (311) comprises two groups of horizontal driving rods (311a) and four groups of hinged rods (311b); the two groups of horizontal driving rods (311a) and the four groups of hinged rods (311b) are connected end to end to form the driving rod group (311); the two groups of horizontal driving rods (311a) are opposite to each other; there are two thimbles (312), one end of which is connected to the two groups of hinged rods (311b); ), the two ends of the spring assembly (313) are connected to the two groups of the horizontal drive rods (311a), the spring assembly (313) drives the two groups of the horizontal drive rods (311a) to move away from each other, one end of the personnel connection mechanism (314) is connected to the two groups of the horizontal drive rods (311a), and the other end of the personnel connection mechanism (314) is connected to the construction personnel. When the construction personnel fall quickly, the personnel connection mechanism (314) drives the two groups of the horizontal drive rods (311a) to move closer quickly, so that the two groups of the ejector pins (312) are inserted into the holes of the perforated steel plate (12).

6. A downhole maintenance protection device according to claim 5, characterized in that: The personnel connection mechanism (314) includes a steel wire rope (314a) and a pulley (314b), wherein there are two steel wire ropes (314a), and there are two groups of pulleys (314b). One end of the two steel wire ropes (314a) is respectively connected to a group of horizontal driving rods (311a), and the other end is connected to the construction personnel. The two steel wire ropes (314a) are respectively wound around a group of pulleys (314b), and the pulleys (314b) are used to change the direction of the steel wire ropes (314a).

7. A downhole maintenance protection device according to claim 5, characterized in that: The wheel (22) is provided with a plurality of spokes (221), and the wheel fixing mechanism (32) is connected to the ejector pin (312). When the ejector pin (312) is retracted, the wheel fixing mechanism (32) is inserted between the spokes (221) to limit the wheel (22) from rotating during construction.

8. A downhole maintenance protection device according to claim 1, characterized in that: The follower trolley (20) is also provided with a plurality of auxiliary wheels (23).

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