Falling protector for iron tower climbing

Abstract

The utility model provides an anti-falling device for iron tower climbing, the anti-falling device for iron tower climbing comprises a main body, a plurality of inner pulleys and a plurality of outer pulleys, the main body is provided with a T-shaped chute which is suitable for being in sliding fit with a track; the multiple inner pulleys are arranged on the two sides of the opening of the T-shaped sliding groove correspondingly, are rotationally matched with the main body and are suitable for protruding out of the working face of the main body to abut against the rail; the outer pulleys are arranged on the side, back on to the opening of the T-shaped sliding groove, of the body and rotationally matched with the body. Guide grooves are formed in the two ends, corresponding to the inner pulleys, of the body, and the extending direction of the guide grooves is perpendicular to the extending direction of the T-shaped sliding grooves. Sliding blocks are slidably arranged in the guide grooves, and the two ends of the inner pulleys are rotationally connected with the sliding blocks. A spring is further arranged in the guide groove and connected with the sliding block. According to the falling protector for iron tower climbing, when the falling protector is braked, the inner pulley is pressed, the pressure of the spring is overcome, the inner pulley retracts, the working face of the main body makes direct contact with and abuts against a rail, and the braking effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric appliances, and particularly relates to a fall arrester for climbing iron towers. Background Art

[0002] The track type fall arrester is a device for safety protection in high-altitude operations, mainly designed to prevent personnel from falling due to accidental slips or equipment failures during high-altitude operations. This kind of fall arrester is usually installed on a fixed track and can move along the track, providing a continuous safety connection point for the staff.

[0003] The working principle of the track type fall arrester is roughly as follows: The fall arrester is slidably installed on a pre-set horizontal or vertical track; the safety belt worn by the operator is connected to the fall arrester through a connecting rope or a shock absorber; once an abnormal acceleration (such as a fall) is detected, the braking mechanism built into the fall arrester will be immediately activated to lock the pulley on the track and prevent further falling.

[0004] In order to reduce the resistance when the fall arrester slides on the track, a pulley system is usually provided on the fall arrester. The surface that is clamped to the track on the fall arrester and is on the inner side of the track and is squeezed when the fall arrester brakes is called the working surface. In order to reduce the resistance when the fall arrester slides on the track, pulleys are usually provided on the working surface. When the fall arrester brakes, the pulleys contact the track, and the friction is roller friction, with small friction force, which affects the braking effect. Content of the Utility Model

[0005] The utility model provides a fall arrester for climbing iron towers, aiming to solve the technical problem in the prior art that setting slides on the working surface of the fall arrester will affect the braking effect.

[0006] To achieve the above object, the technical solution adopted by the utility model is: to provide a fall arrester for climbing iron towers, including:

[0007] A main body, provided with a T-shaped chute, suitable for sliding cooperation with the track;

[0008] A plurality of inner pulleys, respectively arranged on both sides of the opening of the T-shaped chute, and all rotatably matched with the main body. The inner pulleys are suitable for protruding from the working surface of the main body to abut against the track; and

[0009] A plurality of outer pulleys, arranged on the side of the main body facing away from the opening of the T-shaped chute, and rotatably matched with the main body;

[0010] Wherein, guide grooves are provided at both ends of the main body corresponding to the inner pulleys, and the extending direction of the guide grooves is perpendicular to the extending direction of the T-shaped chute; sliders are slidably arranged in the guide grooves, and both ends of the inner pulleys are rotatably connected to the sliders; springs are also arranged in the guide grooves, and the springs are connected to the sliders.

[0011] In a possible implementation of the tower climbing fall arrester provided by the utility model, the main body includes a load-bearing block and a braking mechanism, the load-bearing block includes a top block, two clamping blocks and two lateral blocks, the two lateral blocks are respectively connected to the two sides of the top block; the two clamping blocks are arranged on the side of the lateral block facing away from the top block, are respectively connected to the two lateral blocks, and the two clamping blocks are arranged at intervals, the top block, the two clamping blocks and the two lateral blocks are surrounded to form a T-shaped slide groove, and the T-shaped slide groove is suitable for sliding cooperation with the track; the side of the clamping block facing the top block is a working surface; the inner pulley is rotationally cooperated with the clamping block, and the outer pulley is rotationally cooperated with the top block; the braking mechanism is connected to the top block.

[0012] In a possible implementation of the tower climbing fall arrester provided by the utility model, the braking mechanism includes:

[0013] a cam rotatably connected to the top block; and

[0014] A brake handle is connected to the cam, and a snap ring is provided at the end of the brake handle.

[0015] In a possible implementation of the tower climbing fall arrester provided by the utility model, it also includes a plurality of side pulleys, which are respectively rotatably matched with the two lateral blocks, and the side pulleys are suitable for abutting against the side surfaces of the track.

[0016] In a possible implementation of the tower climbing fall arrester provided by the utility model, two inner pulleys are rotatably provided on each of the clamping blocks, two side pulleys are rotatably provided on each of the lateral blocks, and two outer pulleys are rotatably provided on the top block.

[0017] In a possible implementation of the tower climbing fall arrester provided by the utility model, it also includes:

[0018] A plurality of roller brushes are rotatably disposed on the clamping block, the side block and the top block respectively; and

[0019] A transmission assembly, wherein a power input end is drivingly connected to the inner pulley, the side pulley or the outer pulley, and a power output end is drivingly connected to the roller brush, for driving the roller brush to rotate and sweep the track surface through the rotation of the inner pulley, the side pulley or the outer pulley.

[0020] In a possible implementation of the tower climbing fall arrester provided by the utility model, the transmission assembly includes multiple transmission mechanisms, and installation grooves are provided at the connections between the lateral block and the clamping block and the top block, and the multiple transmission mechanisms are respectively arranged in the installation grooves.

[0021] In a possible implementation of the anti - falling device for climbing towers provided by the present utility model, active bevel gears are provided at the ends of the inner pulley, the side pulley, and the outer pulley, and a driven bevel gear is provided at the end of the roller brush. The transmission mechanism includes:

[0022] A rotating shaft rotatably arranged in the installation groove;

[0023] A first bevel gear connected to the rotating shaft and meshing with the active bevel gear; and

[0024] A second bevel gear connected to the rotating shaft and meshing with the driven bevel gear.

[0025] In a possible implementation of the anti - falling device for climbing towers provided by the present utility model, it further includes a plurality of protective covers, and the plurality of protective covers are respectively sleeved on the installation groove.

[0026] The beneficial effects of the anti - falling device for climbing towers provided by the present utility model are as follows: Compared with the prior art, the anti - falling device for climbing towers provided by the present utility model is provided with a number of inner pulleys and a number of outer pulleys on the main body. When the anti - falling device slides on the track, the spring pushes the slider. The slider is placed at one end of the chute close to the track, so that the inner pulley protrudes from the working surface and abuts against the track, thereby reducing the resistance when the anti - falling device slides on the track; when the anti - falling device brakes, the inner pulley is pressed, overcoming the spring pressure, causing the slider to move towards the end away from the track, and the inner pulley retracts. The working surface of the main body directly contacts and presses against the track, effectively ensuring the friction force with the track and ensuring the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 1 is a three - dimensional structure diagram of the anti - falling device for climbing towers provided by an embodiment of the present utility model;

[0028] Figure 2 FIG. 2 is a three - dimensional structure diagram of the anti - falling device for climbing towers provided by an embodiment of the present utility model after removing the protective cover;

[0029] Figure 3 FIG. 3 is Figure 2 the enlarged view of part A in FIG. 2;

[0030] Explanation of the reference numerals in the drawings:

[0031] 11. Top block; 12. Clamping block; 13. Lateral block; 14. Protective cover; 15. Slider;

[0032] 16. Spring; 21. Cam; 22. Braking handle; 31. Inner pulley; 32. Outer pulley;

[0033] 33. Side pulley; 40. Roller brush; 51. Active bevel gear; 52. Driven bevel gear;

[0034] 53. First bevel gear; 54. Second bevel gear; 55. Rotating shaft; 60. Track. Detailed implementation manner

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0037] It should be noted that the terms used herein are only for describing the specific implementation manner and are not intended to limit the exemplary implementation manner according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0038] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods and devices should be regarded as a part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as only exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0040] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.

[0041] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without separate declaration, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0042] Please refer to Figures 1 to 3 , and now the anti-falling device for climbing a iron tower provided by the present utility model will be described. The anti-falling device for climbing a iron tower includes a main body, a plurality of inner pulleys 31 and a plurality of outer pulleys 32. The main body is provided with a T-shaped sliding groove and is adapted to be slidably engaged with a track 60; a plurality of inner pulleys 31 are respectively arranged on both sides of the opening of the T-shaped sliding groove and are all rotatably engaged with the main body. The inner pulleys 31 are adapted to protrude from the working surface of the main body and abut against the track 60; a plurality of outer pulleys 32 are arranged on one side of the main body facing away from the opening of the T-shaped sliding groove and are rotatably engaged with the main body; wherein, guiding grooves are formed at both ends of the main body corresponding to the inner pulleys 31, and the extending direction of the guiding grooves is perpendicular to the extending direction of the T-shaped sliding groove; a slider 15 is slidably arranged in the guiding grooves, and both ends of the inner pulleys 31 are rotatably connected to the slider 15; a spring 16 is further arranged in the guiding grooves, and the spring 16 is connected to the slider 15.

[0043] The beneficial effects of the anti-falling device for climbing iron towers provided by the present utility model are as follows: Compared with the prior art, the anti-falling device for climbing iron towers provided by the present utility model is provided with a plurality of inner pulleys 31 and a plurality of outer pulleys 32 on the main body. When the anti-falling device slides on the track 60, the spring 16 pushes the slider 15. The slider 15 is placed at one end of the chute close to the track 60, so that the inner pulley 31 protrudes from the working surface and abuts against the track 60, thereby reducing the resistance when the anti-falling device slides on the track 60; when the anti-falling device brakes, the inner pulley 31 is pressed, overcoming the pressure of the spring 16, causing the slider 15 to move towards the end away from the track 60, and the inner pulley 31 retracts. The working surface of the main body directly contacts and presses against the track 60, effectively ensuring the friction force with the track 60 and ensuring the braking effect.

[0044] As Figure 1 and Figure 2 shown, in a specific implementation manner of the anti-falling device for climbing iron towers provided by the embodiment of the present utility model, the main body includes a load-bearing block and a braking mechanism. The load-bearing block includes a top block 11, two clamping blocks 12 and two lateral blocks 13. The two lateral blocks 13 are respectively connected to both sides of the top block 11; the two clamping blocks 12 are arranged on the side of the lateral block 13 facing away from the top block 11 and are respectively connected to the two lateral blocks 13, and the two clamping blocks 12 are arranged at intervals. The top block 11, the two clamping blocks 12 and the two lateral blocks 13 enclose a T-shaped chute, and the T-shaped chute is adapted to slidably cooperate with the track 60; the side of the clamping block 12 facing the top block 11 is the working surface; the inner pulley 31 is rotationally matched with the clamping block 12, and the outer pulley 32 is rotationally matched with the top block 11; the braking mechanism is connected to the top block 11.

[0045] It should be noted that the top block 11, the two clamping blocks 12 and the two lateral blocks 13 are integrally connected, effectively ensuring the structural strength.

[0046] As Figure 1 and Figure 2 shown, in a specific implementation manner of the anti-falling device for climbing iron towers provided by the embodiment of the present utility model, the braking mechanism includes a cam 21 and a braking handle 22. The cam 21 is rotatably connected to the top block 11; the braking handle 22 is connected to the cam 21, and a snap ring is provided at the end of the braking handle 22.

[0047] It should be noted that during use, the snap ring on the braking handle 22 is connected to the rope. When a fall occurs, under the action of gravity, the braking handle 22 rotates downward, driving the cam 21 to rotate, so that the cam 21 abuts against the surface of the track 60 for braking.

[0048] As Figure 1 and Figure 2As shown, in a specific implementation manner of the anti-falling device for climbing towers provided in the embodiment of the present utility model, it further includes a plurality of side pulleys 33. The plurality of side pulleys 33 are respectively rotationally matched with two side blocks 13. The side pulleys 33 are adapted to abut against the side surface of the track 60 to further reduce the resistance during sliding.

[0049] Specifically, as Figure 2 and Figure 3 shown, in a specific implementation manner of the anti-falling device for climbing towers provided in the embodiment of the present utility model, two inner pulleys 31 are rotatably provided on each clamping block 12, two side pulleys 33 are rotatably provided on each side block 13, and two outer pulleys 32 are rotatably provided on the top block 11 to effectively ensure the movement stability and reduce the resistance during sliding.

[0050] As Figure 2 and Figure 3 shown, in a specific implementation manner of the anti-falling device for climbing towers provided in the embodiment of the present utility model, it further includes a plurality of roller brushes 40 and a transmission assembly. The plurality of roller brushes 40 are respectively rotatably provided on the clamping block 12, the side block 13 and the top block 11; the power input end of the transmission assembly is in transmission connection with the inner pulley 31, the side pulley 33 or the outer pulley 32, and the power output end is in transmission connection with the roller brush 40, and is used to drive the roller brush 40 to rotate by the rotation of the inner pulley 31, the side pulley 33 or the outer pulley 32 to brush the surface of the track 60.

[0051] It should be noted that the track 60 is long-term exposed to the outdoor environment, and its surface is prone to rust or attach other dirt. After a long time, it is easy to cause an increase in the resistance when the anti-falling device slides on the track 60, or even get stuck. Therefore, roller brushes 40 are provided on the anti-falling device. While the anti-falling device slides along the track 60, the surface of the track 60 is brushed by the roller brushes 40, effectively avoiding rust and dirt accumulation.

[0052] As Figure 2 and Figure 3 shown, in a specific implementation manner of the anti-falling device for climbing towers provided in the embodiment of the present utility model, the transmission assembly includes a plurality of transmission mechanisms. Installation grooves are respectively opened at the joints of the side block 13 with the clamping block 12 and the top block 11, and the plurality of transmission mechanisms are respectively provided in the installation grooves.

[0053] Specifically, as Figure 2 and Figure 3As shown, in a specific implementation manner of the anti-falling device for climbing a iron tower provided in the embodiment of the present utility model, active bevel gears 51 are provided at the ends of the inner pulley 31, side pulley 33 and outer pulley 32, and a driven bevel gear 52 is provided at the end of the roller brush 40. The transmission mechanism includes a rotating shaft 55, a first bevel gear 53 and a second bevel gear 54. The rotating shaft 55 is rotatably arranged in the installation groove; the first bevel gear 53 is connected to the rotating shaft 55 and meshes with the active bevel gear 51; the second bevel gear 54 is connected to the rotating shaft 55 and meshes with the driven bevel gear 52.

[0054] It should be noted that there are four transmission mechanisms, which are respectively arranged in four installation grooves; so that when some of the inner pulley 31, side pulley 33 and outer pulley 32 do not rotate, the roller brush 40 can still be driven to rotate.

[0055] As Figure 1 As shown, in a specific implementation manner of the anti-falling device for climbing a iron tower provided in the embodiment of the present utility model, it further includes a plurality of protective covers 14. The plurality of protective covers 14 are respectively arranged on the installation grooves to form protection for the transmission mechanism and enhance the structural strength of the main body.

[0056] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tower climbing fall arrester, characterized in that: include: The main body is provided with a T-shaped slide groove, suitable for sliding with the track; A plurality of inner pulleys are respectively arranged on both sides of the opening of the T-shaped slide groove and are rotatably matched with the main body, and the inner pulleys are suitable for protruding from the working surface of the main body and abutting against the track; and A plurality of outer pulleys are arranged on a side of the main body facing away from the opening of the T-shaped slide groove and are rotatably matched with the main body; Among them, the main body has guide grooves starting from the two ends corresponding to the inner pulley, and the extension direction of the guide groove is perpendicular to the extension direction of the T-shaped slide groove; a slider is slidably provided in the guide groove, and the two ends of the inner pulley are rotatably connected to the slider; a spring is also provided in the guide groove, and the spring is connected to the slider.

2. The tower climbing fall arrester according to claim 1, characterized in that: The main body includes a load-bearing block and a braking mechanism, the load-bearing block includes a top block, two clamping blocks and two lateral blocks, the two lateral blocks are respectively connected to the two sides of the top block; the two clamping blocks are arranged on the side of the lateral block facing away from the top block, are respectively connected to the two lateral blocks, and the two clamping blocks are arranged at intervals, the top block, the two clamping blocks and the two lateral blocks are surrounded to form a T-shaped slide groove, and the T-shaped slide groove is suitable for sliding cooperation with the track; the side of the clamping block facing the top block is a working surface; the inner pulley is rotationally cooperated with the clamping block, and the outer pulley is rotationally cooperated with the top block; the braking mechanism is connected to the top block.

3. The tower climbing fall arrester according to claim 2, characterized in that: The braking mechanism comprises: a cam rotatably connected to the top block; and A brake handle is connected to the cam, and a snap ring is provided at the end of the brake handle.

4. The tower climbing fall arrester according to claim 2, characterized in that: It also includes a plurality of side pulleys, which are respectively rotatably matched with the two lateral blocks, and the side pulleys are suitable for abutting against the side surfaces of the track.

5. The tower climbing fall arrester according to claim 4, characterized in that: Two inner pulleys are rotatably provided on each of the clamping blocks, two side pulleys are rotatably provided on each of the lateral blocks, and two outer pulleys are rotatably provided on the top block.

6. The tower climbing fall arrester according to claim 4, characterized in that: Also includes: A plurality of roller brushes are rotatably disposed on the clamping block, the side block and the top block respectively; and A transmission assembly, wherein a power input end is drivingly connected to the inner pulley, the side pulley or the outer pulley, and a power output end is drivingly connected to the roller brush, for driving the roller brush to rotate and sweep the track surface through the rotation of the inner pulley, the side pulley or the outer pulley.

7. The tower climbing fall arrester according to claim 6, characterized in that: The transmission assembly comprises a plurality of transmission mechanisms, and mounting grooves are provided at the connection places between the lateral block, the clamping block and the top block, and the plurality of transmission mechanisms are respectively arranged in the mounting grooves.

8. The tower climbing fall arrester according to claim 7, characterized in that: The ends of the inner pulley, the side pulley and the outer pulley are all provided with active bevel gears, the end of the roller brush is provided with a driven bevel gear, and the transmission mechanism includes: A rotating shaft, rotatably disposed in the mounting groove; A first bevel gear connected to the rotating shaft and meshing with the driving bevel gear; and The second bevel gear is connected to the rotating shaft and meshes with the driven bevel gear.

9. The tower climbing fall arrester according to claim 8, characterized in that: It also includes a plurality of shields, which are respectively arranged on the mounting grooves.

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