Gravity self-locking assembly and high-altitude operation anti-falling device

Abstract

The utility model relates to the technical field of anti-falling devices, in particular to a gravity self-locking assembly which comprises a bearing plate, a first surrounding plate and a second surrounding plate, the two ends of the bearing plate are fixedly connected with the first surrounding plate and the second surrounding plate respectively, and an L-shaped notch is formed in the first surrounding plate; the sleeve is fixed to the outer side of the second surrounding plate, a spiral long hole is formed in the wall face of the sleeve in the circumferential direction, a straight long hole is formed in the wall face of the sleeve in the axial direction of the sleeve, and the spiral long hole and the straight long hole are communicated to form a guide long hole; the L-shaped clamping rod comprises a longitudinal rod and a transverse rod, the longitudinal rod is arranged in the sleeve in a penetrating mode, a rotating pin is fixedly connected to the outer wall of the longitudinal rod in the axial direction, and the rotating pin penetrates through the guiding long hole and is limited by guiding of the guiding long hole; the limiting mechanism is arranged on the bearing plate and the longitudinal rod and used for limiting the longitudinal rod to move in the direction away from the sleeve. The anti-falling device effectively solves the problems that in the prior art, when the anti-falling device is installed on the high-altitude cross beam, installation efficiency is low, and safety is not high.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-falling devices, and specifically provides a gravity self-locking component and an anti-falling device for high-altitude operations. Background Art

[0002] A fall arrester for aerial work is a device specially designed to protect the safety of aerial workers. Most existing fall arresters for aerial work are made up of a fall arrester body and hooks set at both ends of the fall arrester body. The upper hook is fixed at a high place, and the lower hook is fixed to the belt of the construction worker. When the worker is climbing or working in the descending direction, the steel wire rope of the fall arrester body can be extended or retracted at any direction. However, when the worker loses support and falls rapidly, the steel wire rope of the fall arrester body is stuck, thereby ensuring the safety of the worker.

[0003] However, in this type of anti-fall device, the hook installed on the upper end of the anti-fall device body needs to be manually fixed at a high place, which is inefficient. Especially when it needs to be fixed at a high-altitude beam, it is very dangerous to rely on manual hanging.

[0004] Therefore, it is of great significance to design a gravity self-locking component that can self-lock to the high-altitude crossbeam. Utility Model Content

[0005] The utility model provides a gravity self-locking component, which solves the problems of low installation efficiency and low safety when the anti-fall device is installed on a high-altitude beam in the prior art.

[0006] In a first aspect, the utility model provides a gravity self-locking assembly, comprising:

[0007] The C-shaped frame comprises a load-bearing plate, a first enclosure plate and a second enclosure plate, wherein two ends of the load-bearing plate are respectively fixedly connected to the first enclosure plate and the second enclosure plate, and the first enclosure plate is provided with an L-shaped notch;

[0008] A sleeve is fixed to the outer side of the second enclosure plate, and a spiral long hole is formed on the wall surface of the sleeve along the circumferential direction, and a straight long hole is formed along the axial direction of the sleeve, wherein the spiral long hole and the straight long hole are connected to form a guide long hole;

[0009] The L-shaped clamping rod comprises a longitudinal rod and a transverse rod, wherein the longitudinal rod is inserted into the sleeve, a rotating pin is fixedly connected to the outer wall of the longitudinal rod along the axial direction, the rotating pin passes through the guide long hole and is guided and constrained by the guide long hole;

[0010] A limiting mechanism, provided on the load-bearing plate and the longitudinal rod, for limiting the movement of the longitudinal rod in a direction away from the sleeve;

[0011] Wherein, the rotating pin moves to the connection between the spiral long hole and the straight long hole, and the cross bar is located at the corner of the L-shaped notch. When the rotating pin moves into the straight long hole, the cross bar is located in the L-shaped notch.

[0012] According to the gravity self-locking assembly provided by the utility model, the limiting mechanism includes:

[0013] A baffle, fixedly connected to the load-bearing plate;

[0014] A limit plate, fixedly connected to the longitudinal rod and capable of rotating with the longitudinal rod, and located between the baffle plate and the sleeve;

[0015] Wherein, the limiting plate can press against the baffle plate when rotating along with the longitudinal rod.

[0016] The gravity self-locking assembly provided by the utility model further comprises a lifting plate, and the lifting plate is connected to the top end of the longitudinal rod.

[0017] In a second aspect, the utility model also provides a high-altitude work anti-fall device, including the gravity self-locking assembly as described above, and also including a fall arrester body, and the fall arrester body is connected to the gravity self-locking assembly.

[0018] According to the aerial work anti-falling device provided by the utility model, the anti-falling device body is connected to the cross bar.

[0019] The utility model provides a gravity self-locking assembly, which can be directly placed on a square steel beam through a semi-open C-shaped frame. At the same time, the L-shaped clamping rod slides down under the action of its own weight. During the falling process, the spiral long hole opened on the sleeve and the rotating pin fixed on the longitudinal rod can realize the overall rotation of the L-shaped clamping rod, so that the cross bar of the L-shaped clamping rod can be smoothly screwed into the L-shaped notch; then, under the action of the straight long hole and the rotating pin, the L-shaped clamping rod falls as a whole without rotation, and finally the cross bar is located at the bottom of the L-shaped notch to achieve self-locking. Without manual installation and clamping, the gravity self-locking assembly can be suspended to a high altitude by a drone and placed on the square steel beam, completely realizing unmanned operation.

[0020] 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

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the gravity self-locking component provided by the utility model from the first viewing angle;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the gravity self-locking component provided by the utility model from a second viewing angle;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the gravity self-locking assembly provided by the utility model in a locked state;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the gravity self-locking assembly provided by the utility model in the unlocked state;

[0026] Figure 5 It is a three-dimensional structural diagram of the high-altitude operation anti-falling device provided by the utility model;

[0027] Figure 6 It is a schematic diagram of the matching structure between the gravity self-locking component and the high-altitude crossbeam provided by the utility model.

[0028] Reference numerals:

[0029] 101. load-bearing plate; 102. first enclosure; 103. second enclosure; 104. L-shaped notch; 201. sleeve; 202. spiral long hole; 203. straight long hole; 301. longitudinal rod; 302. rotating pin; 303. cross rod; 401. baffle; 402. limit plate; 501. lifting plate; 601. fall arrester body; 701. cross beam. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms are not directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] Combine the following Figures 1 to 6 The embodiment shown describes the technical solution of the utility model:

[0036] The utility model embodiment provides a gravity self-locking component, such as Figures 1 to 4 As shown, it includes: a C-shaped frame, a sleeve 201, an L-shaped clamping rod and a limiting mechanism, wherein the C-shaped frame includes a load-bearing plate 101, a first enclosure 102 and a second enclosure 103, wherein the two ends of the load-bearing plate 101 are respectively fixed to the first enclosure 102 and the second enclosure 103, and the first enclosure 102 is provided with an L-shaped notch 104; the sleeve 201 is fixed to the outer side of the second enclosure 103, and a spiral long hole 202 is formed on the wall surface of the sleeve 201 along the circumferential direction, and a spiral long hole 202 is formed along the axis of the sleeve 201. A straight long hole 203 is formed in the direction, wherein the spiral long hole 202 and the straight long hole 203 are connected to form a guide long hole; the L-shaped clamping rod includes a longitudinal rod 301 and a transverse rod 303, wherein the longitudinal rod 301 is penetrated by the sleeve 201, and a rotating pin 302 is fixedly connected to the outer wall of the longitudinal rod 301 along the axial direction, and the rotating pin 302 passes through the guide long hole and is constrained by the guide long hole; a limiting mechanism is arranged on the load-bearing plate 101 and the longitudinal rod 301, and is used to limit the movement of the longitudinal rod 301 in the direction away from the sleeve 201;

[0037] The rotating pin 302 moves to the connection between the spiral long hole 202 and the straight long hole 203 , and the cross bar 303 is at the corner of the L-shaped notch 104 . When the rotating pin 302 moves into the straight long hole 203 , the cross bar 303 is located in the L-shaped notch 104 .

[0038] In actual applications, the load-bearing plate 101, the first enclosure 102 and the second enclosure 103 are all integrated steel parts. The angles between the load-bearing plate 101 and the first enclosure 102 and the second enclosure 103 are all 90°, but of course they can also be other angles. The angles between the load-bearing plate 101 and the first enclosure 102 and the second enclosure 103 should be consistent with the angles of the edges of the high-altitude beam 701, and the first enclosure 102 and the second enclosure 103 must always be kept parallel to each other, thereby ensuring that the C-shaped frame does not shake when it is placed on the beam 701, and also ensuring that the L-shaped clamping rod can rotate and clamp smoothly.

[0039] The L-shaped notch 104 is provided to ensure that the L-shaped clamping rod is located at the lowest point of the L-shaped notch 104 after entering the L-shaped notch 104, so as to achieve a locking effect;

[0040] The sleeve 201 is a steel pipe, which is welded to the outer side of the second enclosure plate 103 in the vertical direction. At the same time, a spiral long hole 202 is opened in the circumferential direction on its wall surface, and a straight long hole 203 is opened in the axial direction. The two long holes are connected to each other, so as to provide a movement guide for the rotating pin 302; thereby, the L-shaped clamping rod is rotated while falling by itself, so that when the cross bar 303 is screwed into the corner of the L-shaped notch 104, the rotating pin 302 is just at the connection between the straight long hole 203 and the spiral long hole 202, and when the cross bar 303 is located at the bottom of the L-shaped notch 104, the rotating pin 302 is in the straight long hole 203;

[0041] The L-shaped clamping rod is a steel pipe, or other materials with good toughness and wear resistance; the angle between the cross bar 303 and the longitudinal bar 301 is 90°, and of course it can be other angles, the longitudinal bar 301 remains vertical, and the cross bar 303 is parallel to the load-bearing plate 101 as much as possible;

[0042] There may be various limiting mechanisms, including a combination of a baffle 401 and a limiting plate 402 , or other structures capable of restricting the longitudinal rod 301 from moving upward along the axial direction of the sleeve 201 .

[0043] The gravity self-locking assembly provided by the embodiment of the utility model can be directly placed on the high-altitude square steel beam 701 through a semi-open C-shaped frame. At the same time, the L-shaped clamping rod slides down under the action of its own weight. During the falling process, the spiral long hole 202 opened on the sleeve 201 and the rotating pin 302 fixed on the longitudinal rod 301 can realize the overall rotation of the L-shaped clamping rod, so that the cross bar 303 of the L-shaped clamping rod can be smoothly screwed into the L-shaped notch 104; then, under the action of the straight long hole 203 and the rotating pin 302, the L-shaped clamping rod falls as a whole without rotation, and finally the cross bar 303 is located at the bottom of the L-shaped notch 104 to achieve self-locking. Without manual installation and clamping, the gravity self-locking assembly can be suspended to a high altitude by a drone and placed on the square steel beam 701, completely realizing unmanned operation.

[0044] According to the gravity self-locking assembly provided by the embodiment of the utility model, Figure 3 and Figure 4 As shown, the limiting mechanism includes: a baffle 401 and a limiting plate 402, wherein the baffle 401 is fixed to the load-bearing plate 101; the limiting plate 402 is fixed to the longitudinal rod 301 and can rotate with the longitudinal rod 301, and is located between the baffle 401 and the sleeve 201;

[0045] The limiting plate 402 can press against the baffle 401 when rotating along with the longitudinal rod 301 .

[0046] In actual application, the baffle 401 is an inverted L-shaped steel plate welded to the upper surface of the load-bearing plate 101, and the limit plate 402 is a long strip, one end of which is coaxially fixed to the longitudinal rod 301, and the other end can extend to the bottom of the baffle 401. When the L-shaped clamping rod is in a locked state, the limit plate 402 faces outward and away from the baffle 401. When the L-shaped clamping rod is in an unlocked state, the limit plate 402 rotates and rises together with the longitudinal rod 301, gradually approaching the baffle 401 and gradually changing its direction toward the inside.

[0047] In this way, the limit plate 402 can be made lightweight, and the structure cooperating with the baffle 401 can be simplified, while preventing the upward limit of the longitudinal rod 301 from being subjected to force from the rotating pin 302 and preventing the rotating pin 302 from being deformed.

[0048] According to the gravity self-locking assembly provided by the embodiment of the utility model, Figure 3 and Figure 4 As shown, a lifting plate 501 is also included, which is connected to the top end of the longitudinal rod 301.

[0049] In actual application, the lifting plate 501 can be rotatably connected to the top of the longitudinal rod 301, or it can be fixedly connected to the top of the longitudinal rod 301; in actual operation, the connection between the drone and it can be a fixed connection, such as an electromagnet installed on the drone and the magnetically attracted lifting plate 501. When the C-shaped frame is located on the crossbeam 701, the electromagnet is powered off, thereby releasing the lifting plate 501.

[0050] The utility model also provides a high-altitude operation anti-fall device, such as Figure 5 As shown, it includes the gravity self-locking assembly as described above, and also includes a fall arrester body 601, and the fall arrester body 601 is connected to the gravity self-locking assembly.

[0051] In practical applications, the fall arrester body 601 can be connected to other positions of the gravity self-locking assembly, such as setting a pull line on the first enclosure 102 and the second enclosure 103 respectively, and the two pull lines intersect on the vertical line where the gravity self-locking assembly's center of gravity is located, and the intersection is connected to the fall arrester body 601. In this way, the fall arrester body 601 can be stably stretched.

[0052] According to the utility model, a high-altitude operation anti-falling device is provided. Figure 5 As shown, the fall arrester body 601 is connected to the cross bar 303 .

[0053] On the basis of the above embodiment, the fall arrester body 601 can also be connected to the cross bar 303, and the connection point is also on the vertical line where the gravity self-locking component's center of gravity is located, so that the stable stretching of the fall arrester body 601 can be achieved.

[0054] The above-mentioned fall arrester body 601 belongs to the prior art and will not be described in detail here.

[0055] Its working principle is mainly based on the speed difference self-control principle in physics.

[0056] In normal use, the safety rope will freely expand and contract with the movement of the human body and be in a semi-tension state, so that the operator does not feel obvious restraint;

[0057] Once a fall occurs, the speed at which the safety rope is pulled out will increase rapidly, triggering the locking system inside the fall arrester, causing the safety rope to stop being pulled out within a limited distance, usually no more than 0.2 meters.

[0058] Since the safety rope stops being pulled out within a limited distance, the impact force will be greatly reduced, usually less than 2949 Newtons, which can minimize the harm to the person who falls.

[0059] When the load is released, the fall arrester can automatically resume working state, and the safety rope will automatically be recovered into the device for convenient use next time.

[0060] Figure 6 The matching structure between the gravity self-locking component and the high altitude crossbar 701 is illustrated, and the crossbar is in the unlocked state at this time.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A gravity self-locking assembly, characterized in that: include: The C-shaped frame comprises a load-bearing plate, a first enclosure plate and a second enclosure plate, wherein two ends of the load-bearing plate are respectively fixedly connected to the first enclosure plate and the second enclosure plate, and the first enclosure plate is provided with an L-shaped notch; A sleeve is fixed to the outer side of the second enclosure plate, and a spiral long hole is formed on the wall surface of the sleeve along the circumferential direction, and a straight long hole is formed along the axial direction of the sleeve, wherein the spiral long hole and the straight long hole are connected to form a guide long hole; The L-shaped clamping rod comprises a longitudinal rod and a transverse rod, wherein the longitudinal rod is inserted into the sleeve, a rotating pin is fixedly connected to the outer wall of the longitudinal rod along the axial direction, the rotating pin passes through the guide long hole and is guided and constrained by the guide long hole; A limiting mechanism, provided on the load-bearing plate and the longitudinal rod, for limiting the movement of the longitudinal rod in a direction away from the sleeve; Wherein, the rotating pin moves to the connection between the spiral long hole and the straight long hole, and the cross bar is located at the corner of the L-shaped notch. When the rotating pin moves into the straight long hole, the cross bar is located in the L-shaped notch.

2. The gravity self-locking assembly according to claim 1, characterized in that: The limiting mechanism comprises: A baffle, fixedly connected to the load-bearing plate; A limit plate, fixedly connected to the longitudinal rod and capable of rotating with the longitudinal rod, and located between the baffle plate and the sleeve; Wherein, the limiting plate can press against the baffle plate when rotating along with the longitudinal rod.

3. The gravity self-locking assembly according to claim 2, characterized in that: Also included is a lifting plate, which is connected to the top end of the longitudinal rod.

4. A high-altitude work anti-fall device, characterized in that: It comprises the gravity self-locking assembly as described in any one of claims 1 to 3, and also comprises a fall arrester body, wherein the fall arrester body is connected to the gravity self-locking assembly.

5. The anti-fall device for aerial work according to claim 4, characterized in that: The fall arrester body is connected to the cross bar.

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