Compound buffer structure of high-altitude safety clothes

Abstract

The utility model discloses a compound buffer structure of a high-altitude safety garment, which comprises a central tube arranged on the back. The winding pipe is rotationally connected to the periphery of the central pipe; one end of the braid is arranged on the winding pipe, and a hanging ring is arranged at the other end of the braid; the elastic ring is connected into the central pipe in a sliding manner; the first spring is arranged between the elastic ring and the central pipe; a spiral groove is formed in the inner wall of the winding pipe; a sliding column is arranged on the outer wall of the elastic ring; the sliding column is located in the spiral groove. And the spiral groove and the sliding column can be self-locked. The first spring for buffering is transversely arranged on the back, the occupied size and length are reduced, the overall structure is compact, light and small, and the buffering distance is short. And the first spring does not rebound, so that the user is prevented from moving again to collide with the surroundings after falling to the lowest point. The position of the first spring is manually reset for reuse.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of high altitude safety clothes, especially relates to a compound buffer structure of high altitude safety clothes. BACKGROUND

[0002] With the development of economy, a large number of infrastructures need to be laid and maintained, such as wind towers, high-voltage lines and high-rise construction, etc., which are usually in the airspace above 20 meters, with extremely high risk. At the same time, the occurrence of high-rise fire and other emergencies also brings great life threat to high-rise workers and residents. At present, high-altitude workers mainly rely on safety ropes as protective measures. However, when falling to the lowest point, the worker's falling speed is instantaneously zero due to the traction of the safety rope, which will give the worker a large impact force, and often accompanied by swinging. The huge impact force and the collision caused by swinging will still cause certain harm to the worker.

[0003] The Chinese patent document with publication number CN217091832U discloses a falling prevention equipment for high-altitude work and its buffer device, wherein the buffer device includes a buffer box and an elastic assembly. The inner wall of the buffer box is provided with a sliding groove, and the elastic assembly is internally provided with a first elastic member and a second elastic member. When sudden falling occurs, the connecting rope pulls the buffer device, and the deceleration block slides in the sliding groove, and the surface thereof rubs against the sliding groove to generate friction force. At the same time, the first elastic member and the second elastic member in the elastic assembly are compressed to generate a reaction force to jointly offset the impact force on the safety rope when falling, so as to achieve the effect of buffering, prevent the safety rope from breaking due to sudden force, and increase the buffering performance and safety performance of the overall device.

[0004] At present, there are two schemes for safety rope buffer devices. One is a safety rope buffer bag. However, the buffer bag is a disposable product with high cost, and the buffer bag achieves buffering by lengthening the safety rope, so the distance from the anchoring point to the ground should be more than 6.5 meters to effectively play the buffering and safety protection role. The other is a spring buffer, as described in the above patent scheme. However, the entire buffer device is long and large in size, which will cause poor wearing comfort of the safety clothes. In addition, after the spring buffer ends, the spring will rebound, so when falling to the lowest point, the spring will cause irregular movement of the faller around, which is easy to collide with the surrounding environment, still having certain safety hazards. UTILITY MODEL CONTENTS

[0005] In order to overcome the prior art spring buffer device of the safety rope long, bulky, will cause the wearing of safety clothes, and the spring buffer after the rebound process, still can cause the technical problem of safety hazard. One purpose of the utility model is to provide a kind of high-altitude safety clothes's compound buffer structure, by the first spring for buffering impact force horizontally installed in the back of safety clothes, reduce the length and volume of buffer device, improve the wearing comfort of safety clothes, while also set up helical groove and the elastic ring that is resisted with first spring, utilize the self-locking of helical groove and elastic ring, limit the rebound of first spring, reduce the safety hazard of knock.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme realization: a kind of high-altitude safety clothes's compound buffer structure, including center tube, the center tube is horizontally arranged in the back of safety clothes;Winding pipe, the winding pipe rotationally connects in the outer periphery of the center tube, the rotation axis of the winding pipe is coaxially arranged with the center tube;Webbing, one end of the webbing is arranged on the outer wall of the winding pipe, and the other end is provided with a ring;Elastic ring, the elastic ring is slidably connected in the center tube along the axial direction;First spring, the first spring is arranged between the elastic ring and the center tube;Wherein, the inner wall of the winding pipe is provided with helical groove;The outer wall of the elastic ring is provided with slide column;The slide column is located in the helical groove;The helical groove and the slide column can be self-locked;The elastic force of the first spring is used to make the webbing wind on the winding pipe.

[0007] When falling occurs, the safety rope pulls the webbing outward to make the winding pipe rotate, the helical groove drives the elastic ring to slide, so that it compresses the first spring, and the elastic force of the first spring buffers the impact force on the safety rope. Due to the self-locking effect between the helical groove and the slide column, the slide column cannot drive the rotation of the helical groove, thereby limiting the rebound of the first spring, and preventing the staff from moving and colliding with the surrounding after falling.

[0008] Optionally, a clamping block is slidably connected to the elastic ring in the radial direction;The inner wall of the center tube is provided with a plurality of square holes uniformly distributed along the axial direction of the center tube;Second spring is arranged between the clamping block and the elastic ring, and the elastic force of the second spring is used to make the clamping block slide into the corresponding square hole;The side of the clamping block towards the first spring is provided with an inclined surface;The inclined surface is slidably driven by the inner wall of the square hole.

[0009] In order to expand the height range, reduce the length of the buffer, the overall length of the spiral groove should be shortened as much as possible under the premise of self-locking of the spiral groove and the sliding column. As a result, the friction caused by long-term wear or internal mud and sand will cause self-locking failure. The clamping block allows the elastic ring to only slide axially along the central tube to compress the first spring, limit the rebound of the elastic ring, and provide a second protection against the rebound of the first spring.

[0010] Specifically, a semicircular straight rod is rotatably connected in the central tube, and the radial section of the semicircular straight rod is semicircular. An end of the clamping block away from the inclined surface is provided with a pressure bearing surface. The arc-shaped outer wall of the semicircular straight rod is selectively abutted with the pressure bearing surface.

[0011] Specifically, an end of the clamping block away from the first spring is provided with a stand. A sliding groove is provided on the clamping block and slidably connected with the stand. The two ends of the second spring are respectively abutted with the stand and an end of the sliding groove away from the inclined surface.

[0012] Specifically, one end of the semicircular straight rod extends out of the central tube. The end of the semicircular straight rod extending out of the central tube is provided with a slot.

[0013] Under normal conditions, the pressure bearing surface is opposite to the plane on the semicircular straight rod, and the clamping block can slide freely. The semicircular straight rod is rotated to make the arc surface on the semicircular straight rod press the pressure bearing surface, and then the clamping block slides away from the square hole to not contact, and then the winding tube is rotated to recover the woven belt for resetting, realizing the repeated use of the buffer device.

[0014] Further, one end of the central tube is provided with a base plate, and the other end is detachably connected with an end cover. Three structure rods are horizontally arranged between the base plate and the end cover, one of which is located directly below the central tube, and the other two are located directly above the central tube. The two structure rods located above have a spacing groove. The woven belt passes through the spacing groove, and the width of the spacing groove is less than the thickness of the hanging ring.

[0015] Specifically, the two straps of the safety clothes are cross arranged. The two straps pass between the structure rod located below and the winding tube.

[0016] Specifically, one end of the structure rod towards the end cover is provided with a stud. A cap nut is threadedly connected on the stud. The end cover is located between the cap nut and the structure rod.

[0017] Further, the winding pipe is provided with a large-diameter disc at each end; a pressing rod is arranged between the two large-diameter discs; the end of the braid is wrapped around the outer periphery of the winding pipe; and the braid is located between the winding pipe and the pressing rod.

[0018] The braid has a large contact area with the winding pipe and has stronger structural strength, thus helping to improve safety.

[0019] Further, an axial slot is arranged on the central pipe in the axial direction; the slide column passes through the axial slot; and the axial slot is opposite to the square hole.

[0020] Compared with the prior art, the first spring for buffering is transversely arranged on the back of the safety clothes, the occupied volume and length of the buffering device are reduced, the overall structure is compact, light and small, the wearing feeling of the safety clothes is better, the buffering distance is short, and the safety clothes can be applied to a use scenario with a lower anchoring point. When falling occurs, the first spring does not rebound after buffering the impact force, preventing the user from moving again and colliding with the surrounding after falling to the lowest point, and further ensuring the safety of the user. After falling, the first spring can be manually reset, so that the buffering structure can be repeatedly used, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is an exploded schematic view of parts of the utility model;

[0023] Figure 3 It is a structural schematic view of the central pipe of the utility model;

[0024] Figure 4 It is a structural schematic view of the winding pipe of the utility model;

[0025] Figure 5 It is a cross-sectional schematic view of the winding pipe and the braid of the utility model;

[0026] Figure 6 It is a structural schematic view of the clamping block and the semicircular straight rod of the utility model;

[0027] Figure 7 It is a cross-sectional structural schematic view of the utility model;

[0028] Figure 8 It is an application state schematic view of the safety clothes of the utility model.

[0029] In the figure: 11, central tube; 111, axial slot; 112, square hole; 113, spacing groove; 114, bottom disc; 12, end cover; 13, cap nut; 14, structural rod; 141, stud; 21, winding pipe; 211, spiral groove; 212, large-diameter disc; 22, pressing rod; 31, elastic ring; 311, sliding column; 312, sliding groove; 32, first spring; 33, semicircular straight rod; 331, insertion slot; 34, clamping block; 341, inclined surface; 342, pressure receiving surface; 343, upright column; 35, second spring; 41, webbing; 42, hanging ring; 51, connecting piece; 52, shoulder strap. DETAILED DESCRIPTION

[0030] Hereinafter, the utility model will be further described in conjunction with the drawings and specific embodiments, it should be explained that, in the case of no conflict, the following description of each embodiment or each technical feature can be combined to form a new embodiment.

[0031] In the description of the utility model, it should be explained that, for the direction words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0032] In addition, if the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly specified and limited.

[0033] In the utility model, except for another explicit provision and limitation, if the terms "set", "install" and the like are understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be connected between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific situation.

[0034] Reference Figures 1-8The application discloses a compound buffer structure of a high-altitude safety clothes, which comprises a center tube 11 horizontally arranged at the back of the safety clothes, a winding tube 21 coaxially and rotatably connected to the outer wall of the center tube 11, an elastic ring 31 axially and slidably connected to the inner part of the center tube 11, and a first spring 32 arranged at one end of the elastic ring 31 and the center tube 11.

[0035] The two ends of the winding tube 21 are respectively provided with large-diameter discs 212, a pressing rod 22 is arranged between the two large-diameter discs 212, a braid 41 is arranged on the winding tube 21, the end of the braid 41 is wrapped around the outer periphery of the winding tube 21, the other end of the braid 41 is provided with a hanging ring 42, and the braid 41 is located between the outer wall of the winding tube 21 and the pressing rod 22.

[0036] An axial groove 111 is arranged on the center tube 11 in the axial direction, a slide column 311 is arranged on the outer wall of the elastic ring 31 in the radial direction, the slide column 311 penetrates out of the axial groove 111, a spiral groove 211 is arranged on the inner wall of the winding tube 21, the slide column 311 is located in the spiral groove 211, and the spiral groove 211 and the slide column 311 can be self-locked.

[0037] A clamping block 34 is slidably connected to the elastic ring 31 in the radial direction, a plurality of square holes 112 are uniformly distributed on the inner wall of the center tube 11 in the axial direction of the center tube 11, the square holes 112 are opposite to the axial groove 111, a second spring 35 is arranged between the clamping block 34 and the elastic ring 31, the elastic force of the second spring 35 is used for sliding the clamping block 34 into the corresponding square hole 112, an inclined surface 341 is arranged on one side of the clamping block 34 which is away from the first spring 32, and the inclined surface 341 is selectively driven to slide by the inner wall of the square hole 112.

[0038] A semicircular straight rod 33 is rotatably connected to the center tube 11, the radial section of the semicircular straight rod 33 is semicircular, a pressure bearing surface 342 is arranged at one end of the clamping block 34 which is away from the inclined surface 341, and the arc-shaped outer wall of the semicircular straight rod 33 is selectively abutted against the pressure bearing surface 342.

[0039] A stand column 343 is arranged at one end of the clamping block 34 which is away from the first spring 32, a slide groove 312 is arranged on the clamping block 34 and slidably connected with the stand column 343, and the two ends of the second spring 35 are respectively abutted against one end of the stand column 343 and the slide groove 312 which is away from the inclined surface 341.

[0040] One end of the semicircular straight rod 33 extends out of the center tube 11, and an insertion groove 331 is arranged at the end of the semicircular straight rod 33 which extends out of the center tube 11.

[0041] One end of the central tube 11 is provided with a base 114, and the other end is detachably connected to an end cap 12; three structural rods 14 are horizontally arranged between the base 114 and the end cap 12, one of the structural rods 14 is located directly below the central tube 11, and the other two structural rods 14 are located directly above the central tube 11; there is a spacer groove 113 between the two upper structural rods 14; the webbing 41 passes through the spacer groove 113, and the width of the spacer groove 113 is less than the thickness of the hanging ring 42.

[0042] A stud 141 is provided at one end of the structural rod 14 facing the end cap 12; a cap nut 13 is threaded onto the stud 141; the end cap 12 is located between the cap nut 13 and the structural rod 14.

[0043] like Figure 1 As shown, the two shoulder straps 52 of the safety vest are arranged crosswise; the two shoulder straps 52 crosswise through the connector 51; the two shoulder straps 52 pass between the structural rod 14 located below and the winding tube 21.

[0044] When a fall occurs, the safety rope tightens the hanging loop 42, causing the winding tube 21 to rotate. The rotation of the winding tube 21 drives the spiral groove 211 to rotate, which in turn drives the sliding column 311, causing the elastic ring 31 to slide. The sliding elastic ring 31 compresses the first spring 32, which cushions the impact force on the safety rope. When the fall reaches its lowest point, due to the self-locking relationship between the spiral groove 211 and the sliding column 311, the sliding column 311 cannot drive the spiral groove 211 to slide, thus limiting the rebound of the first spring 32.

[0045] Preferably, during the sliding process of the elastic ring 31, the locking blocks 34 are sequentially engaged with the square holes 112 under the action of the second spring 35, and the elastic ring 31 can only slide in one direction.

[0046] Reset process: Insert a screwdriver into slot 331 and rotate the semi-circular rod 33 to make its arc surface move the bearing surface 342, and then make the locking block 34 slide away from the square hole 112 until it is no longer in contact. Manually rotate the winding tube 21 to make the webbing 41 rewrap onto the winding tube 21. Finally, rotate the semi-circular rod 33 back to its original position.

[0047] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A compound cushioning structure for a high-altitude safety suit, characterized in that: It includes a central tube, which is horizontally positioned at the back of the safety vest; A spiral tube is rotatably connected to the outer periphery of the central tube, and the rotation axis of the spiral tube is coaxial with the central tube. The webbing has one end attached to the outer wall of the winding tube and the other end attached to a hanging loop. An elastic ring, which is axially slidably connected inside the central tube; A first spring is disposed between the elastic ring and the central tube; The inner wall of the winding tube is provided with a spiral groove; the outer wall of the elastic ring is provided with a sliding post; the sliding post is located in the spiral groove; the spiral groove and the sliding post are self-locking; the elastic force of the first spring is used to make the webbing wound on the winding tube.

2. The buffer structure as described in claim 1, characterized in that: A locking block is slidably connected to the elastic ring along the radial direction; a plurality of square holes are uniformly distributed along the axial direction of the central tube on the inner wall of the central tube; a second spring is provided between the locking block and the elastic ring, and the elastic force of the second spring is used to make the locking block slide into the corresponding square hole; an inclined surface is provided on the side of the locking block facing the first spring; the inclined surface can be selectively driven to slide by the inner wall of the square hole.

3. The buffer structure as described in claim 2, characterized in that: A semi-circular straight rod is rotatably connected inside the central tube, and the radial cross-section of the semi-circular straight rod is semi-circular; a pressure-bearing surface is provided at the end of the clamp block away from the inclined surface; the arc-shaped outer wall of the semi-circular straight rod can optionally abut against the pressure-bearing surface.

4. The buffer structure as described in claim 2, characterized in that: A column is provided at the end of the locking block away from the first spring; a sliding groove is provided on the locking block that is slidably connected to the column; the two ends of the second spring respectively abut against the ends of the column and the sliding groove away from the inclined surface.

5. The buffer structure as described in claim 3, characterized in that: One end of the semi-circular rod extends out of the central tube; a slot is provided at the end of the semi-circular rod extending out of the central tube.

6. The buffer structure as described in any one of claims 1-5, characterized in that: The central tube has a base plate at one end and an end cap detachably connected to the other end; three structural rods are horizontally arranged between the base plate and the end cap, one of which is located directly below the central tube and the other two are located directly above the central tube. There is a spacer groove between the two structural rods located at the top; the webbing passes through the spacer groove; the width of the spacer groove is less than the thickness of the hanging ring.

7. The buffer structure as described in claim 6, characterized in that: The safety vest has two cross straps; the two straps pass between the structural rod and the winding tube located below.

8. The buffer structure as described in claim 6, characterized in that: A stud is provided at one end of the structural rod facing the end cap; a cap nut is threaded onto the stud; the end cap is located between the cap nut and the structural rod.

9. The buffer structure as described in any one of claims 1-5, characterized in that: Large-diameter discs are provided at both ends of the winding tube; a pressure bar is provided between the two large-diameter discs; the end of the webbing covers the outer periphery of the winding tube; the webbing is located between the winding tube and the pressure bar.

10. The buffer structure as described in any one of claims 2-5, characterized in that: An axial groove is provided on the central tube along the axial direction; the sliding column passes through the axial groove; the axial groove is directly opposite the square hole.

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