Falling protector applied to construction

Abstract

The utility model discloses a falling protector applied to construction, and relates to the field of falling protectors, the falling protector comprises a guide rail and a falling protector, an eccentric wheel is rotatably arranged on the inner wall of the falling protector, a locking part for locking the falling protector is arranged on the inner wall of the falling protector, the locking part comprises a first rack, and a second rack is arranged on the first rack. The first rack is arranged on the falling protector in a sliding mode, a first gear is arranged at the bottom of the eccentric wheel, a second gear is rotationally arranged on the inner wall of the falling protector, and the first gear is meshed with the second gear; the falling protector can be locked according to the inertia of climbing or descending, the falling protector and the guide rail can be locked through the inertia of falling when a worker climbs the power tower and falls, and the two moving parts and the guide rail can be limited together after locking, so that the situation that the falling protector cannot respond in time can be avoided, and the safety of the worker is improved. And the locking efficiency of the falling protector can be improved.

Description

Technical Field

[0001] The utility model relates to the field of fall arresters, in particular to a fall arrester used in construction. Background Art

[0002] The fall arrester, also known as the speed differential, is a protective product that can quickly brake and lock a falling object within a limited distance. It is suitable for cargo hoisting, protecting the life safety of ground operators and preventing damage to the hoisted workpiece.

[0003] When workers need to construct or maintain equipment on high towers, they need to climb to a height, and most of them mainly use rail-type fall arresters. The locking property of rail-type fall arresters is prone to jamming with the rails or failing to respond and lock the slide rails in time, causing the workers to continue falling and posing a safety hazard. During the use of the fall arrester, the performance of the wearing parts is easily degraded due to wear, affecting the normal operation and reliability of the locking mechanism.

[0004] Therefore, it is necessary to propose a fall arrester used in construction to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fall arrester for use in construction to solve the above-mentioned problems that the locking property of the guide rail type fall arrester is prone to jamming with the guide rail or failing to respond and lock the slide rail in time, causing the worker to continue to fall, posing a safety hazard, and the performance of the wearing parts of the fall arrester is easily degraded due to wear during use.

[0006] To achieve the above object, the utility model provides the following technical solution: a fall arrester used in construction, comprising a guide rail and a fall arrester, wherein an eccentric wheel is rotatably arranged on the inner wall of the fall arrester, and a locking part for locking the fall arrester itself is arranged on the inner wall of the fall arrester;

[0007] The locking part includes a first rack, which is slidably arranged on the anti-fall device, a first gear is arranged at the bottom of the eccentric wheel, a second gear is rotatably arranged on the inner wall of the anti-fall device, the first gear is meshed with the second gear, the second gear is meshed with the first rack, and a plurality of locking grooves are arranged at equal distances on both sides of the guide rail.

[0008] Preferably, a connecting piece is slidably provided on the side of the first rack away from the second gear, a third gear is rotatably provided on the inner wall of the fall arrester, a slide rail is slidably provided on the inner wall of the fall arrester, a moving piece is slidably connected to the inner wall of the slide rail, a second rack is provided on the surface of the moving piece, the third gear is meshingly connected to the second gear, the third gear is meshingly connected to the second rack, and a plurality of equidistant limit grooves are provided on both sides of the guide rail.

[0009] Preferably, the inner wall of the fall arrester is provided with a wear-resistant part for reducing friction between the fall arrester and the guide rail, and the wear-resistant part includes a guide wheel, and the guide wheel is equidistantly rotated and arranged on the inner wall of the fall arrester, and the surface of the guide wheel is provided with a wear-resistant sleeve, and the wear-resistant sleeve is in extrusion contact with the guide rail.

[0010] Preferably, there are multiple hollow grooves at equal intervals on both sides of the guide rail, and oblique grooves are provided between the hollow grooves on both sides of the guide rail.

[0011] Preferably, the number of the guide wheels is four.

[0012] Preferably, the guide rail is arranged in an I-shape.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The locking part of the utility model can lock the fall arrester according to the inertia of climbing or descending. If a worker falls while climbing a power tower, the inertia of the fall can be used to lock the fall arrester and the guide rail. After locking, the two moving parts can be limited together with the guide rail, which can not only avoid the fall arrester from failing to respond in time, but also improve the locking efficiency of the fall arrester;

[0015] 2. The wear-resistant part of the utility model not only enhances the friction force of the fall arrester when it slides on the guide rail, but also effectively reduces the wear rate. At the same time, the hollow groove design on the guide rail cleverly reduces the weight of the guide rail, making it easier to install and carry. The setting of the inclined groove reduces the retention of rain and snow on the guide rail in rainy and snowy weather, further improving the performance of the equipment in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the guide rail and the fall arrester of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the fall arrester used in construction according to the utility model;

[0018] Figure 3 It is a schematic diagram of the track, fall arrester, connector, locking groove and hollow groove of the utility model;

[0019] Figure 4 This is a schematic diagram of the track, connector and fall arrester of the utility model;

[0020] Figure 5 This is a schematic diagram of the track, eccentric wheel, first gear, second gear and third gear of the utility model;

[0021] Figure 6 This is a schematic diagram of the first rack, eccentric wheel, second gear and third gear of the utility model;

[0022] Figure 7 This is a schematic diagram of the third gear, slide rail, moving part and third rack of the utility model;

[0023] Figure 8 It is a schematic diagram of the track, guide wheel, guide rail, locking groove and limit groove of the utility model.

[0024] In the figure: 1. guide rail; 2. fall arrester; 3. eccentric wheel; 4. locking part; 401. first rack; 402. first gear; 403. second gear; 404. locking groove; 405. connecting piece; 406. third gear; 407. slide rail; 408. moving piece; 409. second rack; 410. limiting groove; 5. wear-resistant part; 501. guide wheel; 502. wear-resistant sleeve; 6. hollow groove; 7. inclined groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0026] The utility model provides Figure 1 - Figure 8 A fall arrester used in construction is shown, comprising a guide rail 1 and a fall arrester 2. The guide rail 1 is arranged in an I-shaped configuration. The structure of the I-shaped guide rail is stable and can withstand the gravity from the fall arrester 2 and the impact force during operation. There are multiple hollow grooves 6 arranged at equal distances on both sides of the guide rail 1, which reduce the weight of the guide rail 1 and the overall weight of the guide rail 1, making the installation and transportation process easier and more convenient without affecting the rigidity of the guide rail 1. Bevel grooves 7 are arranged between the hollow grooves 6 on both sides of the guide rail 1, which can reduce the retention of rain and snow in rainy and snowy weather. An eccentric wheel 3 is rotatably arranged on the inner wall of the fall arrester 2, and the eccentric wheel 3 is used to lock the guide rail 1.

[0027] The inner wall of the fall arrester 2 is provided with a locking portion 4 for locking the fall arrester 2 itself, mainly to optimize the locking efficiency of the fall arrester 2, thereby enhancing its safety and reliability. By optimizing the locking mechanism, we ensure that the fall arrester 2 can lock the guide rail 1 more quickly and stably during high-altitude operations, effectively preventing accidental falls;

[0028] The locking portion 4 includes a first rack 401, which is slidably arranged on the anti-fall device 2. A first gear 402 is arranged at the bottom of the eccentric wheel 3. A second gear 403 is rotatably arranged on the inner wall of the anti-fall device 2. The first gear 402 is meshed with the second gear 403, and the second gear 403 is meshed with the first rack 401. A plurality of locking grooves 404 are arranged at equal distances on both sides of the guide rail 1.

[0029] A third gear 406 is rotatably provided on the inner wall of the fall arrester 2, a slide rail 407 is slidably provided on the inner wall of the fall arrester 2, a moving part 408 is slidably connected to the inner wall of the slide rail 407, a second rack 409 is provided on the surface of the moving part 408, the third gear 406 is meshingly connected with the second gear 403, the third gear 406 is meshingly connected with the second rack 409, a plurality of equidistant limit grooves 410 are provided on both sides of the guide rail 1, and a positioning groove is also provided on the surface of the fall arrester 2 to prevent sliding when the fall arrester 2 resets the connecting part 405.

[0030] The inner wall of the fall arrester 2 is provided with a wear-resistant portion 5 for reducing friction between the fall arrester 2 and the guide rail 1, mainly to reduce friction between the fall arrester 2 and the guide rail 1;

[0031] The wear-resistant part 5 includes guide wheels 501, which are equidistantly rotatably arranged on the inner wall of the fall arrester 2. There are four guide wheels 501, which are equidistantly distributed to ensure that the fall arrester 2 is supported by a uniformly distributed force on the guide rail 1. This uniform support reduces the situation where a single point is subjected to excessive force, and effectively disperses the pressure of the fall arrester 2 on the guide rail 1. Even when there is a slight unevenness or deviation on the surface of the guide rail 1, the four guide wheels 501 can work together to maintain the smooth operation of the fall arrester 2 and reduce shaking and deviation.

[0032] The surface of the guide wheel 501 is covered with a wear-resistant sleeve 502, and the wear-resistant sleeve 502 is in extrusion contact with the guide rail 1. The wear-resistant sleeve 502 is made of a highly wear-resistant material and can effectively resist the wear caused by roughness, particles or oxides that may exist on the surface of the guide rail 1;

[0033] When the fall arrester 2 is installed on the guide rail 1, the guide wheel 501 and the guide rail 1 are in contact and rubbed against each other when the staff uses the fall arrester 2. When the fall arrester 2 is lifted and lowered normally and smoothly, the fall arrester 2 is affected by its own gravity and keeps rising and lowering synchronously in a silent state. The friction resistance between the guide wheel 501 and the guide rail 1 in the uniform low-speed lifting state does not cause the fall arrester 2 to brake. When the staff falls suddenly, the safety rope will instantly drive the connecting piece 405 to slide down. At this moment, due to the friction resistance between the guide wheel 501 and the guide rail 1, it still keeps uniform low-speed movement. However, the instantaneous tension of the safety rope will pull the connecting piece 405 The connecting member 405 slides downward, and when the connecting member 405 slides downward, it brings the first rack 401 downward. At this time, the first rack 401 drives the second gear 403 to rotate. The second gear 403 rotates and drives the first gear 402 to make the eccentric wheel 3 rotate inward to limit the locking groove 404 of the guide rail 1. While the second gear 403 rotates, it drives the third gear 406 to rotate. The third gear 406 rotates and drives the second rack 409 to bring the moving member 408 to slide into the limiting groove 410 and engage with the limiting groove 410, thereby reinforcing the locking of the anti-fall device 2.

[0034] When the lock needs to be released, the connecting piece 405 is pushed upward with force to slide. At this time, the moving piece 408 slides upward and slides with the first rack 401. The first rack 401 slides and drives the second gear 403 to rotate. The rotation of the second gear 403 drives the first gear 402 to rotate, so that the eccentric wheel 3 and the guide rail 1 are unlocked. The rotation of the second gear 403 drives the third gear 406 to rotate, and the rotation of the third gear 406 drives the second rack 409 to slide outward. At this time, the moving piece 408 slides outward along the inner wall of the slide rail 407 and releases the limit with the limit groove 410. After the moving piece 408 slides upward, it is pushed upward again until it engages with the positioning groove to prevent the anti-fall device from accidentally touching the lock when sliding along the slide rail.

Claims

1. A fall arrester used in construction, comprising a guide rail (1) and a fall arrester (2), characterized in that: An eccentric wheel (3) is rotatably provided on the inner wall of the fall arrester (2), and a locking part (4) for locking the fall arrester (2) itself is provided on the inner wall of the fall arrester (2); The locking portion (4) comprises a first rack (401), the first rack (401) is slidably arranged on the fall arrester (2), a first gear (402) is arranged at the bottom of the eccentric wheel (3), a second gear (403) is rotatably arranged on the inner wall of the fall arrester (2), the first gear (402) is meshed with the second gear (403), the second gear (403) is meshed with the first rack (401), and a plurality of locking grooves (404) are arranged at equal distances on both sides of the guide rail (1).

2. The fall arrester used in construction according to claim 1, characterized in that: A connecting piece (405) is slidably provided on the side of the first rack (401) away from the second gear (403); a third gear (406) is rotatably provided on the inner wall of the fall arrester (2); a slide rail (407) is slidably provided on the inner wall of the fall arrester (2); a moving piece (408) is slidably connected to the inner wall of the slide rail (407); a second rack (409) is provided on the surface of the moving piece (408); the third gear (406) is meshingly connected to the second gear (403); the third gear (406) is meshingly connected to the second rack (409); and a plurality of equidistant limiting grooves (410) are provided on both sides of the guide rail (1).

3. The fall arrester used in construction according to claim 1, characterized in that: The inner wall of the fall arrester (2) is provided with a wear-resistant portion (5) for reducing friction between the fall arrester (2) and the guide rail (1); the wear-resistant portion (5) comprises a guide wheel (501); the guide wheel (501) is equidistantly rotatably arranged on the inner wall of the fall arrester (2); a wear-resistant sleeve (502) is sleeved on the surface of the guide wheel (501); and the wear-resistant sleeve (502) is in extrusion contact with the guide rail (1).

4. The fall arrester used in construction according to claim 3, characterized in that: The guide rail (1) has a plurality of hollow grooves (6) arranged at equal distances on both sides, and inclined grooves (7) are arranged between the hollow grooves (6) on both sides of the guide rail (1).

5. The fall arrester used in construction according to claim 4, characterized in that: The number of the guide wheels (501) is four.

6. The fall arrester used in construction according to claim 4, characterized in that: The guide rail (1) is arranged in an I-shaped configuration.

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