CN114370169A

CN114370169A - Safety belt fastening device for parapet wall

Info

Publication number: CN114370169A
Application number: CN202210001342.XA
Authority: CN
Inventors: 徐斐; 孙永成; 刘会闽; 戴龙波; 徐欣蕾; 李志强
Original assignee: State Grid Fujian Electric Power Co Ltd; Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Current assignee: State Grid Fujian Electric Power Co Ltd; Sanming Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-04-19

Abstract

The utility model relates to a safety belt tying and hanging device for a parapet wall, which comprises a connecting rod, a grapple mechanism, a clamp mechanism and a hanging ring mechanism, wherein the grapple mechanism is arranged on the connecting rod; the connecting rod comprises a horizontal rod body and a limiting blocking piece fixed at the front end of the rod body; the middle rear part of the rod body is a threaded end provided with an external thread; the grapple mechanism comprises a base movably sleeved on the rod body and a plurality of claw blades uniformly arranged on the periphery of the base at intervals; the base is arranged close to the rear end of the limiting baffle; the clamping piece mechanism is movably sleeved on the threaded end; the claw blade and the clamping piece mechanism are respectively arranged close to the front end face and the rear end face of the wall body; the hanging ring mechanism is fixed on the threaded end in a threaded mode, and the hanging ring mechanism is attached to the rear end of the clamping piece mechanism.

Description

Safety belt fastening device for parapet wall

Technical Field

The utility model relates to a safety belt fastening device for a parapet wall, and belongs to the technical field of building construction.

Background

Currently, safety belt hitching devices are widely used in production lines, for example: transformer substation, building site, construction site of various high-altitude operations, etc. The daily maintenance work of the transformer substation is the use of the safety belt and the fastening device thereof.

The existing mode for fastening and hanging the safety belt on the roof of the transformer substation mainly comprises the following two modes: one is when building the roof of the transformer substation, namely pre-buried certain metalwork is regarded as the tie and hang the point of the safety belt; secondly, customizing the counterweight anchor point. The counterweight anchor point is a puncture-free and movable falling protection system, mainly structurally comprises a counterweight device and a safety belt hanging rod, and is suitable for flat roofs with the inclination of less than 5 degrees. Because the acting force when the operating personnel falls needs to be offset, the whole weight of the counterweight type anchor point device is heavier, the weight of the basic device is about 250kg, the weight of the basic device is composed of independent smaller components, and the weight of a single component is about 25 kg.

In the two methods: (1) the method for using the prefabricated metal parts for the safety belt hanging points during the building of the transformer substation roof needs to fully consider the number and the positions of the hanging points when designing a building. In practical use, once the position of the fastening point is fixed, the operator is inconvenient to move in work; meanwhile, the hanging points are made of metal products, so the hanging points are easily corroded by air and rainwater after being exposed for a long time, and water is easily seeped at the interface with the roof, so the building quality of the roof is influenced, and the safety problem is caused. (2) The prefabricated weight anchor point has the advantages of puncture-free and mobility, but the mobility is relatively. Particularly, the roofs of most transformer substations belong to unpopular roofs, the passages going to the roofs are mostly side wall climbing ladders, the operators carry tools and tools to go upstairs and are laboursome, and the counterweight components with the weight of about 25kg of a single component are additionally carried to be assembled upstairs, so that the complexity and difficulty of installing and disassembling devices are increased, a large amount of time is wasted, and the working efficiency is greatly reduced.

Chinese utility model patent "a chinese utility model patent that grant bulletin number is CN 212389038U" is used for the parapet to turn over along the safety device of fixed safety belt on the wall ", it provides a safety device that is used for the parapet to turn over along fixed safety belt on the wall, wherein left side L shape piece and right side L shape piece set up and set up relatively along controlling the direction interval, roll spare and mounting all are located between left L shape piece and the right L shape piece, the mounting sets up on the roll spare, safety belt link and connecting piece all set up on the mounting, the left end and the right-hand member of connecting piece overlap respectively and establish on the vertical arm of left L shape piece and right L shape piece, left side locating part is located the left end of connecting piece and sets up on the vertical arm of left L shape piece, right side locating part is located the right-hand member of connecting piece and sets up on the vertical arm of right L shape piece. The safety device for fixing the safety belt on the parapet wall can be used for tying the safety belt, is convenient for construction around the parapet wall of a roof, effectively protects the safety of constructors around the parapet wall, and is ingenious in design, simple in structure, simple and convenient to manufacture, low in cost and suitable for large-scale popularization and application.

However, in the above patent, "when in use, the bottom of the turned edge on the parapet wall is hooked by the cross arm of the left and right L-shaped members, the left and right vertical arms of the left and right L-shaped members respectively abut against the left and right sides of the turned edge on the parapet wall, the left and right ends of the connecting member are respectively sleeved on the vertical arms of the left and right L-shaped members, the rolling member abuts against the top of the turned edge on the parapet wall, the left and right limit members are respectively positioned on the left and right ends of the connecting member and respectively arranged on the vertical arms of the left and right L-shaped members, then the safety belt is hooked on the safety belt hanging ring", the use scene is limited, the parapet wall can be fixed only by arranging the turned edge on the safety belt hanging ring, and the condition is severe; moreover, the installation process is complicated, which is not conducive to the quick and effective deployment of operators.

Disclosure of Invention

In order to overcome the problems, the utility model provides a safety belt fastening device for a parapet wall, which can be quickly and efficiently installed, is convenient for a roof operator to fasten the safety belt, can also be quickly disassembled and stored, and greatly saves the time for the roof operator to fasten and disassemble the safety belt before construction operation.

The technical scheme of the utility model is as follows:

a safety belt tying and hanging device for a parapet wall comprises a connecting rod, a grapple mechanism, a clamp mechanism and a hanging ring mechanism; the connecting rod comprises a horizontal rod body and a limiting blocking piece fixed at the front end of the rod body; the middle rear part of the rod body is a threaded end provided with an external thread; the grapple mechanism comprises a base movably sleeved on the rod body and a plurality of claw blades uniformly arranged on the periphery of the base at intervals; the base is arranged close to the rear end of the limiting baffle; the clamping piece mechanism is movably sleeved on the threaded end; the claw blade and the clamping piece mechanism are respectively arranged close to the front end face and the rear end face of the wall body; the hanging ring mechanism is fixed on the threaded end in a threaded mode, and the hanging ring mechanism is attached to the rear end of the clamping piece mechanism.

Further, the base comprises a pipe sleeve movably sleeved on the rod body and a plurality of bases uniformly arranged at the periphery of the pipe sleeve at intervals; the front end of the claw blade is hinged to the base through a screw rod.

Further, the clamping piece mechanism comprises a C-shaped clamping body; the upper end and the lower end of the C-shaped clamp body are respectively provided with an upper connecting pipe and a lower fixing pipe; the upper connecting pipe is movably sleeved on the threaded end; the lower fixing pipe and the upper connecting pipe are coaxially arranged; the front end of the lower fixing pipe is tightly attached to the wall body.

Further, the device also comprises a fastener; the fastener is sleeved in the lower fixing pipe; the front end of the fastener extends out of the front end of the lower fixing pipe; the front end of the fastener clings to the wall body.

Further, the fastener includes a groove and an adjustment portion; the grooves are formed in the front end face of the fastener; the adjustment portion is located at the fastener end; the adjusting part is in threaded connection with the lower fixing pipe, and the tail end of the adjusting part penetrates out of the tail end of the lower fixing pipe.

Further, a placing plane is arranged at the lower end of the upper connecting pipe; the placing plane is attached to the upper end face of the wall body.

Furthermore, the device also comprises a limiting mechanism; the limiting mechanism comprises a limiting lug; the limiting convex block is fixed at the front end of the claw blade; the upper end of the limiting lug is arranged to be close to the outer edge of the limiting baffle; the claw blade is opened, the upper end of the limiting lug is abutted against the outer edge of the limiting baffle, and the included angle alpha between the end surface of the claw blade close to one side of the wall body and the axis of the connecting rod can be enabled not to exceed 90 degrees.

Further, the thickness of the claw blade is gradually reduced from one end connected with the base to the other end; and a sawtooth clamping structure is arranged on the end surface of one side of the claw blade, which is close to the wall body.

Furthermore, the number of the bases is not less than three, and the number of the bases below the axis of the connecting rod is not less than two; the claw blade is hinged to the base below the axis of the connecting rod.

Further, the hanging ring mechanism comprises a limiting pipe and a clasp fixed at the rear end of the limiting pipe; the limiting pipe is fixed on the threaded end in a threaded manner; the limiting pipe is attached to the rear end of the clamping piece mechanism.

The utility model has the following beneficial effects:

1. the safety belt fastening device can be installed quickly and efficiently, the safety belt of the roof operating personnel can be fastened conveniently, the safety belt can also be detached and stored quickly, and the fastening and detaching time of the safety belt of the roof operating personnel before construction operation is greatly saved.

2. The safety belt fastening device is strong in universality, can be directly matched with a parapet wall which is most commonly used at present on a transformer substation roof for use, does not need to preassemble a large number of safety belt fastening points on the transformer substation roof, does not need to carry heavy prefabricated counterweight type anchor points, saves the cost, and reduces the popularization difficulty.

3. Each part of the safety belt fastening device adopts a split type design, and any part can be replaced after being damaged without influencing the use of other parts. The device is made of high-strength steel, the whole weight is not more than 10kG, and the transportation and the installation of workers are facilitated. During installation and disassembly, all the parts are assembled and disassembled along the direction of the connecting rod after the grapple mechanism is fixed, so that the installation and disassembly method is convenient, quick, labor-saving and high in efficiency.

4. When not in use, the claw blade can be tightly attached to the rod body for storage, so that the space is saved; when the safety belt fastening device is used, the connecting rod penetrates through the middle of the pipe sleeve until the front end of the claw blade is jacked to the limiting stop piece at the front end of the rod body, the pipe sleeve is continuously pushed forwards, the claw blade is opened after being stressed, the lower part of the claw blade can hook the wall body and is in bidirectional fit with the clamping piece mechanism, and the safety belt fastening device is fixed on the wall body.

5. The screw thread on the regulating part closes with the screw thread of fixing intraduct soon down, adjusts the outstanding length of fastener, withstands the reaction force of wall body through the fastener, and taut connecting rod can drive grapple mechanism and grasp the wall body more.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a schematic view of the internal structure of the base.

Fig. 5 is a schematic view of the engagement of the connecting rod with the grapple mechanism.

Fig. 6 is a schematic structural view of the clip mechanism.

The reference numbers in the figures denote:

1. a connecting rod; 11. a limiting baffle plate; 12. a shaft body; 13. a threaded end; 2. a grappling mechanism; 21. a base; 22. pipe sleeve; 23. a base; 24. a claw blade; 25. a saw tooth clamping structure; 3. a clip mechanism; 31. a C-shaped clamp body; 32. an upper connecting pipe; 33. a lower fixed tube; 4. a fastener; 41. a trench; 42. an adjustment section; 5. a suspension loop mechanism; 51. a limiting pipe; 52. a clasp; 6. a limiting mechanism; 61. a limiting bump; 7. a wall body.

Detailed Description

The utility model is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1-6, a safety belt fastening device for parapet wall comprises a connecting rod 1, a grappling mechanism 2, a clamping mechanism 3 and a hanging ring mechanism 5; the connecting rod 1 comprises a horizontal rod body 12 and a limiting baffle plate 11 fixed at the front end of the rod body 12; the middle rear part of the rod body 12 is a threaded end 13 provided with external threads; the grapple mechanism 2 comprises a base 21 movably sleeved on the rod body 12 and a plurality of claw blades 24 uniformly arranged at intervals on the periphery of the base 21; the base 21 is arranged close to the rear end of the limiting baffle 11; the clamping piece mechanism 3 is movably sleeved on the threaded end 13; the claw blade 24 and the clamping piece mechanism 3 are respectively arranged close to the front end face and the rear end face of the wall 7; the hanging ring mechanism 5 is fixed on the threaded end 13 in a threaded mode, and the hanging ring mechanism 5 is attached to the rear end of the clamping piece mechanism 3.

According to the above description, the safety belt fastening device mainly includes the connecting rod 1, the grapple mechanism 2, the clip mechanism 3, and the suspension loop mechanism 5. The connecting rod 1 is made of high strength steel and is used for each component of the tandem device. The front end of the connecting rod 1 is a flat cylinder (namely a limit stop piece 11) which is used for stopping and limiting the displacement of the grapple mechanism 2; the rear part of the connecting rod 1 is a threaded long cylindrical metal piece (namely a rod body 12 provided with a threaded end 13 with external threads) for installing the clamping piece mechanism 3 and the suspension ring mechanism 5. The connecting rod 1 can be designed into different lengths of the rod body 12 and the threaded end 13 according to the thickness of the wall 7 of the parapet wall on the roof of various transformer substations, so that the replacement of the connecting rod by an operator at any time is facilitated. The grapple mechanism 2 includes a base 21 and a plurality of claw blades 24; the base 21 is movably sleeved on the rod body 12 and is abutted against the rear part of the limiting blocking piece 11; a plurality of claw blades 24 are provided on the base 21 and can be hooked on the wall 7. The clamping mechanism 3 is movably sleeved on the threaded end 13 and matched with the claw blade 24, and can be clamped on the wall 7 from the front direction and the rear direction respectively, so that the whole safety belt fastening device is fixed on the wall 7. The hanging ring mechanism 5 is fixed on the threaded end 13 in a threaded mode and props against the clamping piece mechanism 3 from the rear, and therefore the clamping piece mechanism 3 is prevented from being damaged due to backward displacement.

Further, the base 21 comprises a pipe sleeve 22 movably sleeved on the shaft 12 and a plurality of bases 23 uniformly arranged at intervals on the periphery of the pipe sleeve 22; the front end of the claw blade 24 is hinged on the base 23 through a screw rod.

According to the above description, the base 21 comprises a sleeve 22 and a plurality of seats 23; the sleeve 22 has an inner diameter slightly larger than the diameter of the shaft 12. The whole grapple mechanism 2 is made of high-strength steel, and the front end of the claw blade 24 is hinged on the base 23 through a screw rod. When not in use, the claw blade 24 can rotate 90 degrees and is closely attached to the base 21 for storage, so that the space is saved; when the safety belt fastening device is used, the connecting rod 1 penetrates through the middle of the pipe sleeve 22 until the front end of the claw blade 24 is propped against the limiting stop piece 11 at the front end of the rod body 12, at the moment, the pipe sleeve 22 is continuously pushed forwards, the claw blade 24 is opened after being stressed, the lower part of the claw blade 24 can hook the wall body 7, and the safety belt fastening device is fixed on the wall body 7 through bidirectional matching with the clamping piece mechanism 3. Meanwhile, the claw blade 24 cannot be opened again due to the blocking of the limiting blocking piece 11, so that the situation that the wall body 7 cannot be hooked due to the fact that the claw blade 24 is too large to be opened is avoided.

Further, the clip mechanism 3 includes a C-shaped clip body 31; the upper end and the lower end of the C-shaped clamp body 31 are respectively provided with an upper connecting pipe 32 and a lower fixing pipe 33; the upper connecting pipe 32 is movably sleeved on the threaded end 13; the lower fixing pipe 33 is coaxially arranged with the upper connecting pipe 32; the front end of the lower fixing pipe 33 is tightly attached to the wall 7.

According to the above description, the clip mechanism 3 includes the C-shaped clip body 31. The clip mechanism 3 is made of high strength steel. The C-shaped clamp body 31 is concave as a whole, the upper structure is a semicircular structure (namely an upper connecting pipe 32) penetrated with a round hole, and the diameter of the round hole is slightly larger than that of the rod body 12 and is used for penetrating through the rod body 12; the lower portion is a cylindrical structure with a threaded circular hole (i.e., the lower stationary tube 33) for mounting the fastener 4. The clamping mechanism 3 has the effects that firstly, the clamping mechanism 3 is matched with the claw blade 24 of the grappling mechanism 2 by adjusting the screwing length of the threads of the hanging ring mechanism 5 and the threaded end 13, so that the wall bodies 7 with different thicknesses can be clamped; secondly, the lower fixing pipe 33 can be provided with a fastener 4, and the fastener 4 is used for realizing closer fit with the wall 7.

Further, the device also comprises a fastener 4; the fastener 4 is sleeved in the lower fixing pipe 33; the front end of the fastener 4 extends out of the front end of the lower fixing tube 33; the front end of the fastener 4 is tightly attached to the wall 7.

Further, the fastener 4 includes a groove 41 and an adjusting portion 42; a plurality of the grooves 41 are formed on the front end surface of the fastening member 4; the adjusting part 42 is positioned at the tail end of the fastener 4; the adjusting part 42 is in threaded connection with the lower fixing pipe 33, and the tail end of the adjusting part 42 penetrates out of the tail end of the lower fixing pipe 33.

According to the above description, the fastening member 4 is fitted in the lower fixing tube 33, and includes the groove 41 and the regulating portion 42. The fastener 4 consists of two cylinders of different diameters. The cylinder that fastener 4 anterior segment diameter is big is established under in the fixed tube 33, and sharp slot 41 is cut out at its top, and at the rotatory in-process of screwing up fastener 4, the wall body 7 can be grabbed more firmly to slot 41 front end, guarantees also can not produce too much displacement when receiving big pulling force. The rear section of the fastening member 4, which is a cylinder with a small diameter (i.e., the adjustment portion 42), is provided with external threads, and the end of the cylinder is provided with a hexagonal groove. The adjusting part 42 can be screwed with the thread in the lower fixing pipe 33, after the front end of the lower fixing pipe 33 is propped against the wall 7, the adjusting part 42 is screwed to enable the fastening piece 4 to move towards the direction of the wall 7, and then reaction force is generated to act on the upper connecting pipe 32 on the upper part of the C-shaped clamp body 31, so that the upper connecting pipe 32 is propped against the suspension ring mechanism 5 which is fixed in place at the rear part, the connecting rod 1 is pulled to move backwards, and finally the grappling mechanism 2 at the front end is driven to further press the wall 7, so that the whole device can firmly clamp the wall 7.

Further, a placing plane is arranged at the lower end of the upper connecting pipe 32; the placing plane is attached to the upper end face of the wall body 7. The upper connecting pipe 32 is a semicircular structure with a circular hole, and a placing plane is arranged at the lower end of the upper connecting pipe and used for being attached to the upper plane of the wall body 7 of the parapet wall, so that the transverse sliding phenomenon of the whole device can be avoided.

Furthermore, the device also comprises a limiting mechanism 6; the limiting mechanism 6 comprises a limiting lug 61; the limiting convex block 61 is fixed at the front end of the claw blade 24; the upper end of the limiting lug 61 is arranged to be tightly attached to the outer edge of the limiting baffle 11; the claw blade 24 is opened, the upper end of the limiting convex block 61 is abutted against the outer edge of the limiting baffle 11, and the included angle alpha between the end surface of one side of the claw blade 24, which is close to the wall body 7, and the axis of the connecting rod 1 is not more than 90 degrees.

According to the above description, the safety belt hooking device further includes the stopper mechanism 6. The limiting mechanism 6 comprises a limiting lug 61. The limiting lug 61 is used for matching with the limiting baffle 11 to further limit the opening angle of the claw blade 24. Through stopping of spacing lug 61 and spacing separation blade 11, claw sword 24 can not open and exceed 90 to can with the cooperation of folder mechanism 3, firmly grasp wall body 7, bear the pulling force that comes to the operation personnel and fall and bring, and whole device does not take place big displacement or drop, ensures safe in utilization.

Further, the thickness of the claw blade 24 is gradually reduced from one end connected with the base 21 to the other end; a sawtooth clamping structure 25 is arranged on the end face of the claw blade 24 close to one side of the wall body 7. The sawtooth clamping structure 25 can increase the grabbing force of the claw blade 24 and the wall body 7, and improve the reliability of the grapple mechanism 2 in use.

Further, the number of the bases 23 is not less than three, and the number of the bases 23 below the axis of the connecting rod 1 is not less than two; the jaw edge 24 is hinged on the base 23 below the axis of the connecting rod 1. The number of the bases 23 is not less than three, so that the bases can be rotated in the using process, are not easy to damage, and the service performance of the bases is ensured; because the claw blades 24 can hook the wall body 7 only on the base 23 below the axis of the connecting rod 1, the base 23 at other positions can be used when next rotation is carried out without the claw blades 24; to ensure the stability of the grapple mechanism 2, at least two claw blades 24 are required to be in an operative state.

Further, the hanging ring mechanism 5 comprises a limiting pipe 51 and a clasp 52 fixed at the rear end of the limiting pipe 51; the limiting pipe 51 is fixed on the threaded end 13 in a threaded manner; the limiting pipe 51 is attached to the rear end of the clamping piece mechanism 3.

According to the above description, the suspension loop mechanism 5 includes the stopper tube 51 and the clasp 52. The suspension loop mechanism 5 is made of high-strength steel; the limiting pipe 51 is internally provided with threads and can be screwed on the threaded end 13; the rear clasp 52 is used to hook a harness or safety line. The suspension loop mechanism 5 has two main functions: firstly, the safety belt is used for being tied and hung, meanwhile, the falling gravity of an operator is changed into the horizontal tension of the whole device, the falling tension of the operator is offset through the screwing length of the limiting pipe 51 and the threaded end 13, and the safety belt is prevented from being separated from the whole device; secondly, the position of the clamping piece mechanism 3 on the connecting rod 1 is adjusted through the screwing length of the limiting pipe 51 and the threaded end 13, so that the whole device can adapt to parapet wall bodies 7 with different thicknesses.

The working principle of the utility model is as follows:

referring to fig. 1-6, the installation and use process of the present invention will be described with the number of the bases 23 being four and the number of the claw blades 24 being two as follows:

the method comprises the following steps: preassembling the grapple mechanism 2 and the clamping piece mechanism 3;

firstly, taking out the grappling mechanism 2, and opening the claw blade 24 to enable the claw blade 24 to naturally hang below the base 21; then, the fastener 4 is screwed into the lower fixing tube 33 through the adjustment portion 42, and the adjustment portion 42 is screwed to the bottom until only the groove 41 at the front end is exposed from the front end of the lower fixing tube 33.

Step two: installing a grapple mechanism 2;

the shaft body 12 of the connecting rod 1 penetrates through the middle of the pipe sleeve 22 until the front end of the claw blade 24 is propped against the limiting stop piece 11 at the front end of the shaft body 12; the pipe sleeve 22 is continuously pushed forwards, the opening angle of the claw blade 24 is confirmed until the limiting bump 61 is propped against the periphery of the limiting baffle 11, the opening angle of the claw blade 24 cannot be continuously increased, and the included angle alpha between the end surface of one side of the claw blade 24, close to the wall body 7, and the axis of the connecting rod 1 is not more than 90 degrees, so that the use safety is ensured.

Step three: placing the grapple mechanism 2;

the grappling mechanism 2 and the connecting rod 1 are placed together on the top plane of the wall body 7 of the parapet wall, and then the connecting rod 1 is pulled to the outside (the side of the wall body 7 where the grappling mechanism 2 is located is the inside), so that the end of the claw blade 24 can be tightly hooked on the end face of the inside of the wall body 7. Then, it is confirmed that the distal ends of the two claw blades 24 are positioned on the same horizontal plane; otherwise, the grapple mechanism 2 needs to be readjusted to ensure safety in use.

In particular, when the number of the claw blades 24 is larger than two, the distribution of the claw blades 24 may be such that the plurality of claw blades 24 are arranged on both sides of a reference plane in mirror symmetry with respect to a vertical plane on which the axis of the connecting rod 1 is located.

Step four: mounting the clamping piece mechanism 3;

the middle part of the upper connecting pipe 32 is sleeved on the rod body 12 (the thread end 13) until the front end of the lower fixing pipe 33 (the fastening piece 4) at the lower part of the clamping piece mechanism 3 is contacted with the outer side end surface of the wall body 7. Then, confirming that the placing plane of the lower end of the upper connecting pipe 32 is completely attached to the top plane of the wall body 7; otherwise, the clamping mechanism 3 needs to be adjusted again to ensure the use safety.

Step five: mounting a hanging ring mechanism 5;

screwing the limiting pipe 51 of the hanging ring mechanism 5 on the threaded end 13 until the limiting pipe 51 is pressed against the rear end of the clamping piece mechanism 3; the stop tube 51 continues to be rotated until the stop tube 51 has been screwed on.

Step six: adjustment of the fastener 4;

the fastener 4 is driven toward the wall 7 by inserting a socket wrench into the hexagonal slot at the end of the adjustment portion 42 until the groove 41 at the top of the fastener 4 has been inserted into the wall 7 and the socket wrench cannot continue to drive the adjustment portion 42.

Step seven: the safety belt is tied and hung;

after the installation is completed according to the steps from the first step to the sixth step, the device is required to be verified to be tightly grabbed on the wall 7 and cannot move; otherwise, the installation is carried out again according to the steps two to six until the device grips the wall 7 and cannot move. Then, the hook of the personal safety belt or the belt extension cord is hooked on the hook 52 of the hook mechanism 5, and the fastening work of the safety belt can be completed.

Step eight: disassembling the device;

when the device is used and needs to be disassembled, firstly, the hook of the personal safety belt or the safety belt extension rope is taken down from the clasp 52; then the fastener 4 is unscrewed through an inner hexagonal wrench; then, the limiting tube 51 is rotated reversely to take down the hanging ring mechanism 5; then the clamping piece mechanism 3 is taken out from the rear part of the connecting rod 1; then the connecting rod 1 is lifted, so that the grapple mechanism 2 is separated from the wall body 7; then taking out the grapple mechanism 2 from the rear part of the connecting rod 1, and tightly attaching the claw blade 24 to the base 21 for storage; finally, all parts of the whole device are uniformly loaded into a tool box for storage.

In particular, in the process of withdrawing the clamping mechanism 3, the connecting rod 1 needs to be held by hands, so that the connecting rod 1 and the grappling mechanism 2 are prevented from falling due to fixation loss.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a safety belt is tied and is hung device for parapet which characterized in that: comprises a connecting rod (1), a grappling hook mechanism (2), a clamping piece mechanism (3) and a hanging ring mechanism (5); the connecting rod (1) comprises a horizontal rod body (12) and a limiting baffle plate (11) fixed at the front end of the rod body (12); the middle rear part of the rod body (12) is a threaded end (13) provided with external threads; the grapple mechanism (2) comprises a base (21) movably sleeved on the rod body (12) and a plurality of claw blades (24) uniformly arranged on the periphery of the base (21) at intervals; the base (21) is arranged close to the rear end of the limiting baffle (11); the clamping piece mechanism (3) is movably sleeved on the threaded end (13); the claw blade (24) and the clamping piece mechanism (3) are respectively arranged in a manner of clinging to the front end surface and the rear end surface of the wall body (7); the hanging ring mechanism (5) is fixed on the threaded end (13) in a threaded mode, and the hanging ring mechanism (5) is attached to the rear end of the clamping piece mechanism (3).

2. The safety belt hooking device for parapet wall as claimed in claim 1, characterized in that: the base (21) comprises a pipe sleeve (22) movably sleeved on the shaft body (12) and a plurality of bases (23) which are uniformly arranged on the periphery of the pipe sleeve (22) at intervals; the front end of the claw blade (24) is hinged on the base (23) through a screw rod.

3. The safety belt hooking device for parapet wall as claimed in claim 1, characterized in that: the clamping piece mechanism (3) comprises a C-shaped clamping body (31); the upper end and the lower end of the C-shaped clamp body (31) are respectively provided with an upper connecting pipe (32) and a lower fixing pipe (33); the upper connecting pipe (32) is movably sleeved on the threaded end (13); the lower fixing pipe (33) and the upper connecting pipe (32) are coaxially arranged; the front end of the lower fixing pipe (33) is tightly attached to the wall body (7).

4. The safety belt hooking device for parapet wall as claimed in claim 3, characterized in that: also comprises a fastener (4); the fastener (4) is sleeved in the lower fixing pipe (33); the front end of the fastener (4) extends out of the front end of the lower fixing pipe (33); the front end of the fastener (4) is tightly attached to the wall body (7).

5. The safety belt hooking device for parapet wall as claimed in claim 4, characterized in that: the fastener (4) comprises a groove (41) and an adjusting part (42); a plurality of grooves (41) are formed on the front end face of the fastening piece (4); the adjusting part (42) is positioned at the tail end of the fastener (4); the adjusting portion (42) is in threaded connection with the lower fixing pipe (33), and the tail end of the adjusting portion (42) penetrates out of the tail end of the lower fixing pipe (33).

6. The safety belt hooking device for parapet wall as claimed in claim 3, characterized in that: the lower end of the upper connecting pipe (32) is provided with a placing plane; the placing plane is attached to the upper end face of the wall body (7).

7. The safety belt hooking device for parapet wall as claimed in claim 2, characterized in that: the device also comprises a limiting mechanism (6); the limiting mechanism (6) comprises a limiting lug (61); the limiting convex block (61) is fixed at the front end of the claw blade (24); the upper end of the limiting bump (61) is arranged to be clung to the outer edge of the limiting baffle (11); the claw blade (24) is opened, the upper end of the limiting convex block (61) is abutted against the outer edge of the limiting baffle (11), and the included angle alpha between the end surface of one side, close to the wall body (7), of the claw blade (24) and the axis of the connecting rod (1) is not more than 90 degrees.

8. The safety belt hooking device for parapet wall as claimed in claim 1, characterized in that: the claw blade (24) is gradually reduced in thickness from one end connected with the base (21) to the other end; and a sawtooth clamping structure (25) is arranged on the end surface of one side of the claw blade (24) close to the wall body (7).

9. The safety belt hooking device for parapet wall as claimed in claim 2, characterized in that: the number of the bases (23) is not less than three, and the number of the bases (23) below the axis of the connecting rod (1) is not less than two; the claw blade (24) is hinged to the base (23) below the axis of the connecting rod (1).

10. The safety belt hooking device for parapet wall as claimed in claim 1, characterized in that: the hanging ring mechanism (5) comprises a limiting pipe (51) and a clasp (52) fixed at the rear end of the limiting pipe (51); the limiting pipe (51) is fixed on the threaded end (13) in a threaded manner; the limiting pipe (51) is attached to the rear end of the clamping piece mechanism (3).