Falling protector

Abstract

The utility model provides an anti-falling device which comprises a connecting piece fixedly installed on a lifting platform, an installation box is fixedly installed at the bottom of the connecting piece, a trapezoid groove is formed in the installation box, the width of the trapezoid groove is gradually increased from top to bottom, a trapezoid brake block is connected in the trapezoid groove in a sliding mode, and the trapezoid brake block is connected with the installation box in a sliding mode. The width of the trapezoidal brake block is gradually increased from top to bottom, a U-shaped connecting seat is fixedly mounted at the bottom of the mounting box, a connecting plate is arranged in the U-shaped connecting seat, a scraping plate is integrally formed at the bottom of the connecting plate, a locking mechanism is arranged on the side wall of the U-shaped connecting seat, a mounting seat is fixedly mounted in the mounting box, and a locking mechanism is arranged on the side wall of the mounting seat. Rollers are rotationally connected into the mounting seats; in the using process of the falling protector, dust on the surface of the sliding rail can be cleaned, the problem that the falling protector cannot provide enough friction force when needing to be braked due to the fact that the friction coefficient is reduced by the dust is effectively solved, and the safety is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude operations, and more specifically, to a fall arrestor. Background Technology

[0002] A fall arrestor for a cargo lifting platform is a crucial device installed on the platform to prevent goods or the platform itself from falling in unexpected situations, ensuring the safety of personnel and property. It quickly activates a braking mechanism to secure the platform or goods in the event of a malfunction, such as a broken rope or motor failure, preventing a fall. There are many types of fall arrestors, including mechanical, electronic, hydraulic, and friction types. Friction fall arrestors work by using friction to prevent objects from falling.

[0003] When dust adheres to the surface of the slide rail during the use of existing fall arrestors, this dust may reduce the coefficient of friction, making it impossible for the fall arrestor to provide sufficient friction when braking is required, resulting in poor braking effect and possibly even causing a fall accident.

[0004] Therefore, we made improvements and proposed a fall arrestor. Utility Model Content

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] Fall arrestors are designed to address the aforementioned issues.

[0007] The present invention is as follows:

[0008] The device includes a connector that is fixedly installed on a lifting platform. The connector has a mounting box fixedly installed at its bottom. The mounting box has a trapezoidal groove whose width gradually increases from top to bottom. A trapezoidal brake block is slidably connected within the trapezoidal groove, and the width of the trapezoidal brake block also gradually increases from top to bottom. A U-shaped connecting seat is fixedly installed at the bottom of the mounting box. A connecting plate is provided within the U-shaped connecting seat, and a scraper is integrally formed at the bottom of the connecting plate. A locking mechanism is provided on the side wall of the U-shaped connecting seat. A mounting base is fixedly installed within the mounting box, and a roller is rotatably connected within the mounting base. An elastic mechanism is provided on the trapezoidal brake block, and an auxiliary mechanism is provided within the trapezoidal groove.

[0009] As a preferred technical solution of this utility model, the elastic mechanism includes a spring, one end of which is fixedly connected to the trapezoidal brake block, and the end of the spring away from the trapezoidal brake block is fixedly connected to the mounting base.

[0010] As a preferred technical solution of this utility model, the auxiliary mechanism includes a guide wheel, which is rotatably connected in a trapezoidal groove.

[0011] As a preferred technical solution of this utility model, the locking mechanism includes an anti-loosening bolt, which is threadedly connected to the side wall of the U-shaped connecting seat.

[0012] As a preferred technical solution of this utility model, the bottom of the U-shaped connector is provided with a rectangular slot, and the top of the connector is fixedly installed with a plug, which matches the rectangular slot.

[0013] As a preferred technical solution of this utility model, the scraper is provided with a hollow groove.

[0014] As a preferred technical solution of this utility model, the mounting box is provided with a lid on the front.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the solution of this utility model:

[0017] 1. When the lifting platform falls, the lifting platform drives the connecting parts to move downward, and the connecting parts drive the mounting box to move downward. When the mounting box moves downward, due to inertia, the trapezoidal brake blocks will be above the trapezoidal groove. At this time, the two trapezoidal brake blocks will tightly hold the guide rail and lock it in place through friction.

[0018] 2. With the scraper in place, when the lifting platform is running normally, the lifting platform moves the connecting parts, the connecting parts move the mounting box, the mounting box moves the U-shaped connecting seat, the U-shaped connecting seat moves the connecting plate, and the connecting plate moves the scraper. The scraper can clean the dust on the guide rail, effectively preventing the dust from reducing the coefficient of friction and causing the fall arrestor to be unable to provide sufficient friction when braking is required. This greatly improves safety and solves the problem in the existing technology that when dust adheres to the surface of the slide rail, this dust may reduce the coefficient of friction, causing the fall arrestor to be unable to provide sufficient friction when braking is required, resulting in poor braking effect and even potentially causing a fall accident.

[0019] 3. By creating grooves in the scraper, material savings are achieved. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the fall arrestor provided by this utility model;

[0021] Figure 2 A partial cross-sectional structural diagram of the fall arrester provided by this utility model;

[0022] Figure 3 A schematic diagram of the internal structure of the fall arrester provided by this utility model;

[0023] Figure 4A schematic diagram of the internal structure of the fall arrester provided by this utility model;

[0024] Figure 5 A schematic diagram of the rectangular insert structure of the fall arrester provided by this utility model;

[0025] Figure 6 A schematic diagram of the scraper structure of the fall arrester provided by this utility model;

[0026] Figure 7 A schematic diagram of the trapezoidal brake block structure of the fall arrestor provided by this utility model.

[0027] The image shows:

[0028] 1. Lifting platform; 2. Connector; 3. Mounting box; 4. Trapezoidal groove; 5. Trapezoidal brake block; 6. U-shaped connecting seat; 7. Connecting plate; 8. Scraper; 9. Empty groove; 10. Mounting seat; 11. Roller; 12. Spring; 13. Rectangular slot; 14. Insert block; 15. Anti-loosening bolt; 16. Guide wheel; 17. Box cover. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Example:

[0035] like Figure 1-7 As shown, this embodiment proposes a fall arrestor, including a connector 2 fixedly installed on a lifting platform 1. The connector 2 is used to fixally connect to the side wall of the lifting platform 1. When the lifting platform 1 falls, the lifting platform 1 drives the connector 2 to move downward. A mounting box 3 is fixedly installed at the bottom of the connector 2. The connector 2 drives the mounting box 3 to move downward. A trapezoidal groove 4 is opened in the mounting box 3. The width of the trapezoidal groove 4 gradually increases from top to bottom. A trapezoidal brake block 5 is slidably connected in the trapezoidal groove 4. The width of the trapezoidal brake block 5 gradually increases from top to bottom. When the mounting box 3 moves downward, due to inertia, the trapezoidal brake block 5 will be above the trapezoidal groove 4. At this time, the two trapezoidal brake blocks 5 will tightly hold the guide rail and lock it in place through friction. A U-shaped connecting seat 6 is fixedly installed at the bottom of the mounting box 3. When platform 1 is operating normally, lifting platform 1 drives connecting part 2 to move, connecting part 2 drives mounting box 3 to move, mounting box 3 drives U-shaped connecting seat 6 to move, U-shaped connecting seat 6 is provided with connecting plate 7, U-shaped connecting seat 6 drives connecting plate 7 to move, connecting plate 7 has a scraper 8 integrally formed at the bottom, connecting plate 7 drives scraper 8 to move, scraper 8 can clean the dust on the guide rail, effectively avoiding the problem that dust will reduce the friction coefficient, so that the fall arrestor cannot provide enough friction when braking is required, greatly improving safety; U-shaped connecting seat 6 is provided with locking mechanism on side wall, mounting box 3 is fixedly installed with mounting seat 10, mounting seat 10 is rotatably connected with roller 11, roller 11 rolls on guide rail during normal operation; trapezoidal brake block 5 is provided with elastic mechanism, trapezoidal groove 4 is provided with auxiliary mechanism.

[0036] For this purpose, the elastic mechanism includes a spring 12, one end of which is fixedly connected to the trapezoidal brake block 5, and the other end of which is fixedly connected to the mounting base 10. When the equipment is running normally, the spring 12 is used to maintain the trapezoidal brake block 5 and prevent it from contacting the guide rail under normal conditions. When a drop occurs, the elastic force of the spring 12 will not affect the displacement of the trapezoidal brake block 5 to the top of the trapezoidal groove 4 to lock the guide rail.

[0037] The auxiliary mechanism includes a guide wheel 16, which is rotatably connected in the trapezoidal groove 4 and is in conjunction with the trapezoidal brake block 5.

[0038] The locking mechanism includes an anti-loosening bolt 15, which is threaded onto the side wall of the U-shaped connecting seat 6. When the scraper 8 needs to be replaced, first remove the anti-loosening bolt 15, and then pull the scraper 8 down directly. The scraper 8 drives the connecting plate 7. A rectangular slot 13 is provided at the bottom of the U-shaped connecting seat 6. An insert block 14 is fixedly installed on the top of the connecting plate 7. The connecting plate 7 drives the insert block 14 to disengage it from the rectangular slot 13 at the bottom of the U-shaped connecting seat 6, and then the scraper 8 can be removed.

[0039] A groove 9 is provided on the scraper 8, which saves materials.

[0040] A cover 17 is provided on the front of the mounting box 3.

[0041] Specifically, when this fall arrestor is in use: when the lifting platform 1 falls, the lifting platform 1 drives the connecting piece 2 to move downward, the connecting piece 2 drives the mounting box 3 to move downward. When the mounting box 3 moves downward, due to inertia, the trapezoidal brake block 5 will be above the trapezoidal groove 4. At this time, the two trapezoidal brake blocks 5 will tightly hold the guide rail and lock up through friction.

[0042] When the lifting platform 1 is running normally, the lifting platform 1 drives the connecting piece 2 to move, the connecting piece 2 drives the mounting box 3 to move, the mounting box 3 drives the U-shaped connecting seat 6 to move, the U-shaped connecting seat 6 drives the connecting plate 7 to move, the connecting plate 7 drives the scraper 8 to move, and the scraper 8 can clean the dust on the guide rail, effectively avoiding the problem that dust will reduce the coefficient of friction, making it impossible for the fall arrestor to provide sufficient friction when braking is required, thus greatly improving safety;

[0043] When the scraper 8 needs to be replaced, first remove the anti-loosening bolt 15, then pull the scraper 8 down directly. The scraper 8 drives the connecting plate 7, and the connecting plate 7 drives the insert block 14, causing it to disengage from the rectangular slot 13 at the bottom of the U-shaped connecting seat 6, so that the scraper 8 can be removed.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A fall arrestor comprising a connection element (2) fixedly mounted on a lifting platform (1), characterized in that The bottom of the connecting piece (2) is fixedly provided with a mounting box (3), the mounting box (3) is provided with a trapezoidal slot (4) therein, the width of the trapezoidal slot (4) is gradually increased from top to bottom, the trapezoidal slot (4) is slidably connected with a trapezoidal brake block (5), the width of the trapezoidal brake block (5) is gradually increased from top to bottom, the bottom of the mounting box (3) is fixedly provided with a U-shaped connecting seat (6), the U-shaped connecting seat (6) is provided with a connecting plate (7) therein, the bottom of the connecting plate (7) is integrally provided with a scraper (8), the side wall of the U-shaped connecting seat (6) is provided with a locking mechanism, the mounting box (3) is fixedly provided with a mounting seat (10) therein, the mounting seat (10) is rotatably connected with a roller (11) therein, the trapezoidal brake block (5) is provided with an elastic mechanism, and the trapezoidal slot (4) is provided with an auxiliary mechanism.

2. The fall arrest device of claim 1, wherein, The elastic mechanism comprises a spring (12), one end of the spring (12) is fixedly connected with the trapezoidal brake block (5), and the other end of the spring (12) is fixedly connected with the mounting seat (10).

3. The fall arrest device of claim 1, wherein, The auxiliary mechanism comprises a guide wheel (16), and the guide wheel (16) is rotatably connected in the trapezoidal slot (4).

4. The fall arrest device of claim 1, wherein, The locking mechanism comprises a locking bolt (15), and the locking bolt (15) is threadedly connected to the side wall of the U-shaped connecting seat (6).

5. A fall arrestor according to claim 4, wherein, The bottom of the U-shaped connecting seat (6) is provided with a rectangular insertion slot (13), the top of the connecting plate (7) is fixedly provided with an insertion block (14), and the insertion block (14) is matched with the rectangular insertion slot (13).

6. The fall arrest device of claim 1, wherein, The scraper (8) is provided with a hollow slot (9) therein.

7. The fall arrest device of claim 1, wherein, The front of the mounting box (3) is provided with a box cover (17).

Images