CN104436467A - Safety belt suspension device - Google Patents

Abstract

The invention discloses a safety belt suspension device, which relates to the technical field of aerial work construction. The present invention includes a suspension body and a locking mechanism, the upper end of the suspension body is provided with an upper hook, and the lower end is provided with a lower hook, and the upper hook and the lower hook are respectively arranged on both sides of the suspension body; The rod, the compression spring and the supporting plate, the two holes of the locking plate are respectively placed on the hook part of the upper hook and the suspension body. The supporting plate is located directly below the upper hook and is vertically fixed on the lower part of the suspension body. Between the plate and the supporting plate, the guide rod slides upwards through the supporting plate and the compression spring, and is fixedly connected with the locking plate; the end of the guide rod is provided with a limit head. The invention is simple in structure, easy to operate, reliable in use, easy to carry, does not need to be suspended from a height, can effectively ensure the personal safety of operators, avoid damage to equipment, expand the scope of work, and greatly improve work efficiency.

Description

seat belt suspension

technical field

The invention relates to the technical field of aerial work construction, in particular to a safety belt suspension device.

Background technique

Circuit breakers, isolating switches, transformers and other equipment installed on outdoor substations of 35kV and above are generally more than 2 meters high. During maintenance operations, they belong to high-altitude operations according to regulations, and safety measures should be taken to prevent falling from high altitudes. Since there are no suitable safety measures for the maintenance of outdoor substations, in general, in order to ensure personal safety during the operation, maintenance personnel are required to wear safety belts. Choose to tie the safety belt on the rotary porcelain bottle of the isolating switch. Since this suspension method can only be hung at a relatively low position, the scope of work is also limited, and it does not meet the relevant requirements in the "Electrical Safety Work Regulations". Once it breaks, it will cause casualties to the operating personnel, and it will not play the role of safety protection.

Contents of the invention

The technical problem to be solved by the present invention is to provide a safety belt suspension device with simple structure, strong adaptability, easy operation, reliable use and convenient portability, which can effectively ensure the personal safety of operators, avoid equipment damage, and expand the scope of work. Improve work efficiency.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a safety belt suspension device, comprising a suspension body and a locking mechanism, an upper hook is provided at the upper end of the suspension body, and a lower hook is provided at the lower end, and the upper hook and the lower hook are separately arranged on both sides of the suspension body; the locking mechanism includes a locking piece, a guide rod, a compression spring and a supporting plate, and the two holes of the locking piece are respectively placed on the hook part of the upper hook and the hanging body, and the supporting plate Located directly below the upper hook and vertically fixed to the lower part of the suspension body, the compression spring is located between the locking piece and the supporting plate, the guide rod slides upwards through the supporting plate and the compression spring, and is fixedly connected with the locking piece; the end of the guide rod With limit head.

Preferably, the guide rod is a lead screw, and the lead screw is screwed to a nut fixed under the locking piece.

Preferably, a guide sleeve is fixed on the support plate, the guide rod passes through the guide sleeve, and the lower end of the compression spring is supported on the guide sleeve.

Preferably, a locking screw is passed through the free end of the lower hook.

Preferably, the suspension body has a square cross section, and correspondingly, a hole of the locking piece is a square hole.

The beneficial effects produced by adopting the above technical solution are: the upper hook of the present invention can be hung on the frame above the outdoor substation, and can be locked by a locking mechanism, which can effectively prevent the hook from falling off and ensure that the hanger is fixed safely and reliably;

The free end of the lower hook is threaded with a locking screw, which can lock the hung safety belt to prevent the safety belt from falling off.

The invention is simple in structure, easy to operate, safe to use, easy to carry, flexible and reliable to hang, and the device can be hung on a fixed frame at a high place by using a grounding rod on the ground, without the need for climbing and hanging, and can effectively ensure the personal safety of operators , and will not cause damage to the equipment, and use the lengthening effect of the intermediate connecting belt to increase the working radius and expand the working range of the operator. It can be hung once in a working place without frequent replacement of the hanging position, which is greatly improved. Save work time and improve work efficiency;

Under the action of the locking mechanism and the locking screw of the present invention, the connection between the upper end and the structure on the equipment and the lower end and the safety belt are all safe and reliable, even in severe windy occasions, the connection can be reliable and safe; the present invention has strong adaptability, It is not only limited to the use in power system maintenance, but also applicable to high-altitude operations in other occasions.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a top view of the locking piece in Fig. 1;

Fig. 3 is the structural representation of the implementation process of the present invention;

In the figure: 1. Upper hook; 2. Locking piece; 3. Nut; 4. Compression spring; 5. Guide rod; 6. Guide seat cover; 7. Support plate; 8. Cotter pin; 9. Lower hook; 10. Locking screw; 11. Suspension body; 12. Ground rod.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The maintenance and repair personnel of the power system usually need to work at high altitudes, and it is of great significance to effectively protect the safety of workers and equipment. Since it is inevitable to use seat belts for high-altitude operations, it is an important measure to ensure equipment and personal safety by using the structure on the maintenance equipment to hang seat belts safely and reasonably without the need for high-altitude operations.

The present invention can solve the problems of inconvenient, unsafe and unreliable suspension of the safety belt, and the specific technical measures adopted are realized through the suspension body 11 and the locking mechanism. Referring to Fig. 1, the upper end of the suspension body 11 is provided with an upper hook 1, and the lower end is provided with a lower hook 9, and the upper hook 1 and the lower hook 9 are respectively arranged on both sides of the suspension body 11, and the upper hook 1 is used for connecting with maintenance equipment The upper fixed structure is hooked, the lower hook 9 is used for hooking with the safety belt, and the locking mechanism can form a self-locking on the upper hook 1; the locking mechanism includes a locking piece 2, a guide rod 5, a compression spring 4 and a supporting plate 7 , the locking piece 2 gap is set on the two ends of the upper hook 1, can move up and down along the upper hook 1 and the suspension body 11, the supporting plate 7 is located directly below the upper hook 1, and is vertically fixed on the lower end of the suspension body 11, the compression spring 4 Located between the locking piece 2 and the supporting plate 7, the compression spring 4 is limited by the locking piece 2 and the supporting plate 7, the guide rod 5 is a guide screw, the guiding rod 5 slides upwards through the supporting plate 7 and the compression spring 4, and It is screwed with the nut 3 fixed on the bottom of the locking plate 2. Wherein the guide rod 5 is screwed with the nut 3, which not only has a simple structure, but also facilitates the replacement of the compression spring 4.

A further improved solution is to provide a guide seat cover 6 above the supporting plate 7, the guide rod 5 passes through the guide seat cover 6, the lower end of the compression spring 4 is supported on the guide seat cover 6, and the guide seat cover 6 The arrangement can shorten the stroke of the compression spring 4 and increase the elastic force of the compression spring 4 .

As a preferred technical solution, the free end of the lower hook 9 is threaded with a locking screw 10, which restricts the hanging safety belt and prevents the safety belt from falling off.

As a further improvement, the suspension body 11 has a square cross section, and a hole in the locking piece 2 is a square hole, as shown in FIG. 2 , which can prevent the locking piece 2 from rotating and further restrict the locking piece 2, so The locking piece 2 will not rotate when moving up and down along the suspension body 11, so as to prevent the free end of the upper hook 1 from being difficult to pass through, and it is easy to operate when the present invention is hung up or taken off.

Cotter pin 8 wherein also plays the effect of position-limiting.

Use process of the present invention in detail below:

When in use, it is necessary to send the present invention to a high-altitude suspension position by means of a grounding rod 12 with three claws on the upper end. Generally, the length of the grounding rod is 2 or 3 meters, and there are also extended and telescopic grounding rods, which can meet the height requirements. Among them, the grounding rod with three claws on the upper end is a kind of grounding rod often used in power systems. It is a prior art. By operating the handle of the grounding rod, the three claws on the top can hold the object, and the grounding rod on the handle Under operation, the object can be moved down into the rod body of the ground rod. The present invention is inspired by the frequently used ground rod, and does not need to climb high.

Referring to Fig. 3, firstly, hang the safety belt or the intermediate connection belt on the lower hook 9 on the ground, screw the locking screw 10 to withstand the suspension body 11; operate the ground rod 12, and use the three claws on the upper end of the ground rod 12 Tighten the limit head of the guide rod 5, the guide rod 5 pulls back the locking piece under the tension of the grounding rod 12, the compression spring is compressed, the locking piece moves down along the suspension body, and disengages from the upper hook, and then lifts up In the present invention, the present invention is sent to the frame of the selected equipment, and the upper hook is hung on the frame; the grounding rod 12 is released, the compression spring 4 rebounds, and the locking piece moves up and enters the upper hook, so that the crossbeam can be locked on the frame. Inside the upper hook 1; when it needs to be disassembled, clamp the limit head of the guide rod 5 with the upper end of the ground rod, operate the ground rod 12, the guide rod 5 will move down under the action of the ground rod 12, and drive the locking piece 2 to move down, Until the locking piece 2 is disengaged from the upper hook, until the crossbeam escapes from between the end of the upper hook 1 and the locking piece 2 .

The device makes full use of on-site equipment for inspection and maintenance, and is small in size, light in weight, easy to carry, simple in design and structure, and flexible in suspension, so that the operator's high-altitude operation range is not limited, and maintenance tools can be used conveniently, reducing maintenance operating time, improving the reliability of power supply. The safety belt can be hung high and low, which can effectively ensure the personal safety of the maintenance personnel. This device is not only suitable for high-altitude operations on the site of substation operation and maintenance, but also suitable for other platforms or occasions where safety belts need to be hung for high-altitude operations.

Claims (5)

1. A safety belt suspension device, characterized in that it includes a suspension body (11) and a locking mechanism, the upper end of the suspension body (11) is provided with an upper hook (1), and the lower end is provided with a lower hook (9), so The upper hook (1) and the lower hook (9) are respectively arranged on both sides of the suspension body (11); the locking mechanism includes a locking piece (2), a guide rod (5), a compression spring (4) and a supporting plate (7 ), the two holes of the locking piece (2) are respectively placed on the hook portion of the upper hook (1) and the suspension body (11), the supporting plate (7) is located directly below the upper hook (1), and is vertically fixed on the The lower part of the suspension body (11), the compression spring (4) is located between the locking piece (2) and the support plate (7), the guide rod (5) slides upwards through the support plate (7) and the compression spring (4), and It is fixedly connected with the locking piece (2); the end of the guide rod (5) is provided with a limit head. 2. The safety belt suspension device according to claim 1, characterized in that the guide rod (5) is a guide screw, and the guide screw is screwed to the nut (3) fixed under the locking piece (2). 3. The safety belt suspension device according to claim 1 or 2, characterized in that a guide seat cover (6) is fixed on the top of the supporting plate (7), and the guide rod (5) passes through the guide seat cover ( 6), the lower end of the compression spring (4) is supported on the guide sleeve (6). 4. The safety belt suspension device according to claim 1 or 2, characterized in that, a locking screw (10) is passed through the free end of the lower hook (9). 5. The safety belt suspension device according to claim 1 or 2, characterized in that, the cross section of the suspension body (11) is square, and correspondingly, a hole of the locking piece (2) is a square hole.