Well hook type anti-falling device

Abstract

The utility model discloses a well hook type anti-falling device which comprises a sewer well, two square grooves are formed in the front side of the sewer well, supporting blocks are arranged in the square grooves, the outer sides of the supporting blocks are fixedly connected with first circular ring blocks, the lower sides of the first circular ring blocks are fixedly connected with rope structures, and the lower sides of the rope structures are fixedly connected with second circular ring blocks. And a plurality of rope structures are arranged, the other ends of the rope structures are fixedly connected with second circular ring blocks, the inner sides of the second circular ring blocks are fixedly connected with anti-falling nets, and a fixing structure is arranged in the square groove. Compared with the prior art, due to the arrangement of the square groove, the supporting block, the first circular ring block, the rope structure, the second circular ring block, the anti-falling net, the fixing structure and the protection pad, people who slip into the sewer well can be conveniently protected against injury, when the anti-falling net needs to be replaced, workers can replace the anti-falling net without the help of tools, time and labor are saved, and convenience and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of well safety protection technology, and in particular to a well hook-type anti-fall device. Background Technology

[0002] Manholes (also known as sewer manholes or inspection manholes) are key facilities in urban drainage systems, used for pipe maintenance, debris removal, and water flow inspection.

[0003] Application number "CN202222256039.2" is a utility model of a hook-type fall prevention device for municipal manholes. This utility model uses a fall prevention net to protect workers who fall into the sewer manhole. The fall prevention net needs to be replaced after multiple uses. In this utility model, workers need to use tools to remove the expansion bolts and then remove the fall prevention net to replace it, which is time-consuming and laborious, increasing the workload of the workers. Utility Model Content

[0004] The purpose of this utility model is to provide a well hook-type fall prevention device that can overcome the shortcomings of needing to use tools to remove expansion bolts when replacing fall prevention nets.

[0005] To achieve the above objectives, a manhole hook-type fall arrest device is provided, comprising a sewer manhole, a square groove is provided on the front side of the sewer manhole, two square grooves are provided, a support block is provided inside the square groove, a first ring block is fixedly connected to the outer side of the support block, a rope structure is fixedly connected to the lower side of the first ring block, a plurality of rope structures are provided, a second ring block is fixedly connected to the other end of the rope structure, a fall arrest net is fixedly connected to the inner side of the second ring block, and a fixing structure is provided inside the square groove;

[0006] The fixing structure includes a first groove, which is formed on the lower side inside a square groove. A second groove is formed on the upper side inside the square groove. A spring is installed inside the first groove, and a fixing plate is fixedly connected to the upper end of the spring. A sliding groove is formed on the lower side inside the square groove. This facilitates the replacement of the fall protection net by workers.

[0007] According to the aforementioned manhole hook-type fall prevention device, the fall prevention net is made of elastic material, and a protective pad is fixedly connected to the outer side of the circular block. This facilitates the protection of personnel who accidentally fall into the sewer manhole.

[0008] According to the aforementioned manhole hook-type fall prevention device, the support block is slidably connected to the sewer manhole, the first ring block is slidably connected to the sewer manhole, and the second ring block is slidably connected to the sewer manhole. This facilitates the sliding of the first ring block, the support block, and the second ring block within the sewer manhole.

[0009] According to the aforementioned well hook-type fall arrestor, the rope structure includes a main rope layer, which is fixedly connected between a first circular ring block and a second circular ring block. The main rope layer is made of an elastic material, and a wear-resistant layer is fixedly connected to the outer side of the main rope layer. A waterproof layer is fixedly connected to the outer side of the wear-resistant layer. This facilitates the protection of personnel who accidentally fall into a sewer well.

[0010] According to the aforementioned well hook-type fall arrestor, the wear-resistant layer is fixedly connected between circular ring block one and circular ring block two. The wear-resistant layer is made of wear-resistant material, and the waterproof layer is made of waterproof coating. This helps to extend the service life of the rope.

[0011] According to the aforementioned well hook-type fall prevention device, the lower end of the spring is fixedly connected to the sewer well. This facilitates the fixation of the spring.

[0012] According to the aforementioned manhole hook-type fall prevention device, the fixing plate and the support block are movably connected, and the fixing plate is slidably connected to the sewer manhole. This facilitates the sliding of the fixing plate.

[0013] According to the aforementioned manhole hook-type fall prevention device, a control block is fixedly connected to the upper side of the fixing plate. The control block is disposed inside the sliding groove and slidably connected to the sewer manhole. This facilitates the control block driving the fixing plate to slide.

[0014] This utility model has the following beneficial effects: Compared with the prior art, the arrangement of the square groove, support block, circular ring block one, rope structure, circular ring block two, fall protection net, fixing structure, and protective pad makes it easier to protect people who fall into the sewer well from injury. When the fall protection net needs to be replaced, the staff can replace it without the help of tools, which saves time and effort and is convenient and quick. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view structural diagram of a well hook-type fall prevention device according to this utility model;

[0017] Figure 2 This is a schematic diagram of a portion of the structure of a well hook-type fall prevention device according to this utility model;

[0018] Figure 3 This is a schematic diagram of the rope structure of a well hook-type fall arrestor according to the present invention;

[0019] Figure 4 This is a schematic diagram of the fixing structure of a well hook-type fall prevention device according to the present invention.

[0020] Legend:

[0021] 1. Sewer well; 2. Square groove; 3. Support block; 4. Circular block one; 5. Rope structure; 501. Rope main body layer; 502. Wear-resistant layer; 503. Waterproof layer; 6. Circular block two; 7. Fall protection net; 8. Fixing structure; 801. Groove one; 802. Groove two; 803. Spring; 804. Fixing plate; 805. Slide groove; 806. Control block; 9. Protective pad. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model provides a manhole hook-type fall prevention device, which includes a sewer manhole 1. A square groove 2 is provided on the front side of the sewer manhole 1. Two square grooves 2 are provided. A support block 3 is provided inside the square groove 2. A circular ring block 4 is fixedly connected to the outer side of the support block 3. A rope structure 5 is fixedly connected to the lower side of the circular ring block 4. Several rope structures 5 are provided. A second circular ring block 6 is fixedly connected to the other end of the rope structure 5. A fall prevention net 7 is fixedly connected to the inner side of the second circular ring block 6. A fixing structure 8 is provided inside the square groove 2. The fall prevention net 7 is made of elastic material. A protective pad 9 is fixedly connected to the outer side of the first circular ring block 4. The support block 3, the first circular ring block 4, and the second circular ring block 6 are all slidably connected to the sewer manhole 1.

[0024] The rope structure 5 includes a rope body layer 501, which is fixedly connected between the first ring block 4 and the second ring block 6. The rope body layer 501 is made of elastic material. A wear-resistant layer 502 is fixedly connected to the outside of the rope body layer 501. A waterproof layer 503 is fixedly connected to the outside of the wear-resistant layer 502. The wear-resistant layer 502 is fixedly connected between the first ring block 4 and the second ring block 6. The wear-resistant layer 502 is made of wear-resistant material, and the waterproof layer 503 is made of waterproof coating.

[0025] The fixing structure 8 includes a first groove 801, which is formed on the lower side inside the square groove 2. A second groove 802 is formed on the upper side inside the square groove 2. A spring 803 is installed inside the first groove 801. A fixing plate 804 is fixedly connected to the upper end of the spring 803. A sliding groove 805 is formed on the lower side inside the square groove 2. The lower end of the spring 803 is fixedly connected to the sewer manhole 1. The fixing plate 804 is movably connected to the support block 3. The fixing plate 804 is slidably connected to the sewer manhole 1. A control block 806 is fixedly connected to the upper side of the fixing plate 804. The control block 806 is set inside the sliding groove 805 and slidably connected to the sewer manhole 1.

[0026] When the fall protection net 7 is damaged, the worker pushes the control block 806. The control block 806, along with the fixed block and compressed spring 803, slides into the groove 801. Simultaneously, the control block 806 slides into the slide 805. Then, the worker first slides the support block 3 out of the square groove 2. The movement of the support block 3 moves the first ring block 4, which in turn moves the rope structure 5, the second ring block 6, and the fall protection net 7 out of the sewer manhole 1. The worker then replaces the damaged fall protection net 7, and then slides the second ring block 6 and the fall protection net 7 into the sewer manhole 1. Finally, the worker slides the first ring block 4 and the rope structure 5 into the lower... In the sewer well 1, the fixing plate 804 is slid into the first groove 801, and then the support block 3 is slid into the square groove 2. Then, the control block 806 is released, allowing the fixing plate 804 to slide into the second groove 802 under the action of the spring 803, thus fixing the support block 3. The arrangement of the square groove 2, support block 3, first ring block 4, rope structure 5, second ring block 6, fall protection net 7, fixing structure 8, and protective pad 9 is designed to protect personnel who fall into the sewer well 1 from injury. When the fall protection net 7 needs to be replaced, the staff can replace it without the aid of tools, saving time and effort, and making it convenient and quick.

[0027] Working principle: To prevent pedestrians or workers from falling into the sewer manhole 1, the worker first slides the second ring block 6, along with the fall protection net 7, into the sewer manhole 1. Then, under the influence of gravity, the second ring block 6 carries the first ring block 4 into the sewer manhole 1. After opening the fixing plate 804 of the fixing structure 8, the support blocks 3 on both sides of the first ring block 4 are slid into the square groove 2 and finally fixed by the fixing structure 8. The sewer manhole 1 is then covered with a manhole cover. If the manhole cover is lost and someone accidentally falls into the sewer manhole 1, the person will first collide with the protective pad 9 on the outside of the first ring block 4, protecting them from injury. Then, the worker will fall onto the fall protection net 7. Both the fall arrest net 7 and the main rope layer 501 in the rope structure 5 are made of elastic material, which cushions the fall and reduces the injury to the person who has fallen. This protects the person from injury, and then they can shout for help to rescue them. The wear-resistant layer 502 in the rope structure 5 increases the rope's wear resistance, and the waterproof layer 503 protects the rope from the erosion of the humid environment and extends the rope's service life. When the rope needs to be replaced, the workers open the fixing structure 8, take out the first ring block 4 and the second ring block 6 from the sewer manhole 1, replace the damaged fall arrest net 7, put it back into the sewer manhole 1, and then use the fixing structure 8 to fix the support block 3.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A well hook type fall prevention device, characterized in that, Includes a sewer well (1), the front side of which is provided with a square groove (2), there are two square grooves (2), a support block (3) is provided inside the square groove (2), a ring block (4) is fixedly connected to the outside of the support block (3), a rope structure (5) is fixedly connected to the lower side of the ring block (4), there are several rope structures (5), the other end of the rope structure (5) is fixedly connected to a ring block (6), a fall protection net (7) is fixedly connected to the inner side of the ring block (6), and a fixing structure (8) is provided inside the square groove (2); The fixing structure (8) includes a first groove (801), which is opened on the lower side inside the square groove (2). A second groove (802) is opened on the upper side inside the square groove (2). A spring (803) is installed inside the first groove (801). A fixing plate (804) is fixedly connected to the upper end of the spring (803). A sliding groove (805) is opened on the lower side inside the square groove (2).

2. The well hook type fall prevention device according to claim 1, characterized in that, The fall protection net (7) is made of elastic material, and a protective pad (9) is fixedly connected to the outer side of the circular block (4).

3. The well hook type fall prevention device according to claim 1, characterized in that, The support block (3) and the sewer well (1) are slidably connected, the first ring block (4) and the sewer well (1) are slidably connected, and the second ring block (6) and the sewer well (1) are slidably connected.

4. The well hook type fall prevention device according to claim 1, characterized in that, The rope structure (5) includes a rope body layer (501), which is fixedly connected between a first ring block (4) and a second ring block (6). The rope body layer (501) is made of an elastic material. A wear-resistant layer (502) is fixedly connected to the outside of the rope body layer (501), and a waterproof layer (503) is fixedly connected to the outside of the wear-resistant layer (502).

5. A well hook-type fall prevention device according to claim 4, characterized in that, The wear-resistant layer (502) is fixedly connected between the first ring block (4) and the second ring block (6). The wear-resistant layer (502) is made of wear-resistant material, and the waterproof layer (503) is made of waterproof coating.

6. A well hook-type fall prevention device according to claim 1, characterized in that, The lower end of the spring (803) is fixedly connected to the sewer manhole (1).

7. A well hook-type fall prevention device according to claim 1, characterized in that, The fixing plate (804) and the support block (3) are movably connected, and the fixing plate (804) and the sewer well (1) are slidably connected.

8. A well hook-type fall prevention device according to claim 1, characterized in that, A control block (806) is fixedly connected to the upper side of the fixing plate (804). The control block (806) is located inside the slide groove (805) and is slidably connected to the sewer well (1).

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