Safety belt suspension device and safety belt assembly for overhauling main transformer

Abstract

The invention discloses a safety belt suspension device and a safety belt assembly for overhauling a main transformer. The safety suspension device comprises a lock head connected with a floral beam above the main transformer, and a suspension device, the lock catch is fixedly connected with the safety belt assembly, and the safety belt assembly is worn on a worker; one end of the operating rod is connected with the lock head, and the other end of the operating rod is connected with the lock catch. By changing the hanging position of the safety belt, the safety belt of a worker in high-altitude operation meets the requirement of hanging at a high position and using at a low position, and the safety of the high-altitude operation is improved; the top space of the main transformer does not need to be occupied, and the situation that a safety rope exists at a low position, affects the operation space of workers on one hand and improves the safety of the working environment of the workers on the other hand is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of high-altitude operations in transformer substations, and in particular to a safety belt suspension device and a safety belt assembly for main transformer maintenance. Background Art

[0002] Substation refers to the place in the power system where voltage and current are transformed, electric energy is received and distributed. With the rapid development of social economy, the maintenance tasks of substations are increasing, and the safety risks of maintenance personnel working at heights are also increasing. The "Safety Regulations" stipulate that the use of safety belts or safety ropes for high-altitude operations must follow the principle of "hanging high and using low". However, there are many components on the top cover of the main transformer of a conventional outdoor substation, the platform is narrow, the slope is large, and the safe range of activities for operators is small. When working on the main body, the site often uses a safety belt.

[0003] In the related art, when the transformer is being repaired, the safety belt is generally hung on the main oil pipe from the transformer oil storage cabinet to the transformer body. This method has the following problems: first, the safety belt is hung low and used high, which is against regulations; second, the oil pipes, cable trays, etc. on the top platform of the transformer will naturally cause entanglement to the operators. The safety belt hung on the oil pipe further squeezes the working space and increases the risk of entanglement for the operators, which is not only prone to accidents but also makes the transfer of construction sites very inconvenient. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, the present invention provides a safety belt hanging device and a safety belt assembly for main transformer maintenance, wherein the safety belt hanging device for main transformer maintenance can change the hanging position of the safety belt so that the safety belt of the workers in high-altitude operations meets the requirements of high hanging and low use, thereby improving the safety of high-altitude operations; there is no need to occupy the top space of the main transformer, thereby avoiding the presence of safety ropes in low places, which on the one hand affects the operating space of the workers, and on the other hand improves the safety of the working environment of the workers.

[0006] Specifically, the following technical solutions are included:

[0007] An embodiment of the first aspect of the present invention provides a safety belt suspension device for main transformer maintenance, the safety suspension device comprising:

[0008] The lock head is connected to the flower beam above the main transformer;

[0009] A buckle, fixedly connected to a safety belt assembly, wherein the safety belt assembly is worn by a worker;

[0010] An operating rod, one end of which is connected to the lock head, and the other end of which is connected to the lock catch.

[0011] Optionally, the lock includes:

[0012] A hook, wherein the first end of the hook is hooked on the flower beam;

[0013] a tongue ring located below the first end of the hook;

[0014] A screw rod, one end of which is fixedly connected to a side of the tongue ring away from the hook, the other end of which is fixedly connected to the operating rod, the second end of the hook is sleeved on the screw rod, and the tongue ring is located between the first end of the hook and the second end of the hook.

[0015] Optionally, the hook includes:

[0016] An arc segment, the arc segment is hung on the flower beam, the tongue ring and the arc segment form a receiving space for receiving the flower beam;

[0017] A connecting section, movably connected to the screw rod, wherein the tongue ring is located between the arc section and the connecting section;

[0018] A transition section is used to connect the arc section and the connecting section.

[0019] Optionally, the operating lever comprises:

[0020] A first operating rod, wherein a first end of the first operating rod is connected to the lock head, and a second end of the first operating rod is disposed in the second operating rod;

[0021] a second operating rod, wherein a first end of the second operating rod is sleeved on a second end of the first operating rod, and the second end of the second operating rod is connected to the lock buckle;

[0022] A locking member, comprising a clamping portion and a shell, wherein the clamping portion is sleeved on the first end of the second operating rod, the clamping portion comprises an external thread segment and a plurality of elastic claw segments connected to each other, the external thread segment is located on the second operating rod, the elastic claw segment is located on the outside of the first operating rod, an internal thread segment and a small-diameter segment are arranged in the shell, the internal thread segment is detachably connected to the external thread, the inner diameter of the small-diameter segment is smaller than the inner diameter of the internal thread segment, and the inner diameter of the small-diameter segment is larger than the outer diameter of the first operating rod; or

[0023] The locking member includes a cylindrical shell, and a part of the cylindrical shell is fixedly connected to the second operating rod, a clamping portion is provided on the side of the cylindrical shell facing the first operating rod, the clamping portion is connected to the cylindrical shell through an elastic member, a movable handle is provided on the cylindrical shell, a protruding block is provided on the side of the movable handle facing the clamping portion, and the protruding block is configured to clamp the clamping portion.

[0024] Optionally, a first protrusion is provided at the second end of the first operating rod, and the first protrusion protrudes toward the second operating rod;

[0025] A second protrusion is provided in the first end of the second operating rod, and the second protrusion protrudes toward the first operating rod;

[0026] Wherein, the first protrusion is engaged with the second protrusion.

[0027] Optionally, the first operating rod, the second operating rod and the locking member are made of high-strength carbon fiber.

[0028] Optionally, the lock comprises:

[0029] A connecting shell connected to an end of the operating rod away from the lock head, and a bayonet is provided at an end of the connecting shell away from the operating rod;

[0030] A locking assembly is disposed in the connecting shell, and a portion of the locking assembly is configured to reciprocate on the bayonet;

[0031] A release button, one end of which is located on the connecting shell, and the other end of which is connected to the locking assembly.

[0032] Optionally, the locking assembly comprises:

[0033] A locking tongue block is arranged in the connecting shell, the locking tongue block is provided with a first inclined surface, the bayonet in the connecting shell is provided with a second inclined surface, the first inclined surface matches the second inclined surface, and the other end of the release button is fixedly connected to the locking tongue block;

[0034] A spring, one end of which is connected to a side of the locking tongue block away from the release button, and the other end of which is connected to the connecting shell.

[0035] An embodiment of the second aspect of the present invention provides a safety belt assembly for main transformer maintenance, the safety belt assembly comprising:

[0036] A safety belt suspension device as described above, comprising a buckle;

[0037] The safety belt body comprises a buckle, and the buckle is detachably connected to the buckle.

[0038] Optionally, the safety belt body comprises:

[0039] A full-body safety belt, wherein the full-body safety belt is provided with a back fixing part, a waist fixing part and a hip fixing part, and connecting strips are respectively provided between the back fixing part and the waist fixing part, and between the waist fixing part and the hip fixing part:

[0040] The tightener is arranged on the side of the waist fixing part away from the full-body safety belt. A safety rope is arranged inside the tightener. A clamp is arranged on the safety rope. The clamp is detachably connected to the lock buckle.

[0041] The embodiment of the present invention provides a safety belt hanging device and a safety belt assembly for main transformer maintenance, wherein the safety belt hanging device includes a locking head, an operating rod and a locking buckle connected in sequence, the locking head is connected to the flower beam above the main transformer, so as to avoid directly hanging the safety belt assembly on the main oil pipe from the transformer oil storage cabinet to the main body, thereby ensuring the use requirement of the safety belt assembly being hung high and used low; the locking buckle is fixedly connected to the safety belt assembly, and due to the high-hanging and low-using form, the safety rope in the safety belt assembly is prevented from accumulating above the main transformer, which, on the one hand, avoids the compression of the operating space of the staff, and on the other hand, avoids the staff from being tripped, avoids accidents, and ensures the safety of the staff.

[0042] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 is a schematic diagram of a seat belt suspension device according to an embodiment of the present invention;

[0045] Figure 2 is a schematic diagram of the connection between the first operating rod and the second operating rod according to an embodiment of the present invention;

[0046] Figure 3 is a schematic diagram of a lock according to an embodiment of the present invention;

[0047] Figure 4is a schematic diagram of a lock according to an embodiment of the present invention from another perspective;

[0048] Figure 5 is a schematic diagram of a safety belt body according to an embodiment of the present invention;

[0049] Figure 6 The figure is a schematic diagram of the use of a safety belt assembly according to an embodiment of the present invention.

[0050] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:

[0051] 100 safety belt suspension device, 110 locking head, 111 hook, 1111 arc segment, 1112 transition segment, 1113 connecting segment, 112 tongue ring, 113 screw rod, 120 operating rod, 121 first operating rod, 122 second operating rod, 123 locking member, 124 first protrusion, 125 second protrusion, 130 lock buckle, 131 connecting shell, 132 locking assembly, 1321 lock tongue block, 1322 spring, 133 release button, 134 bayonet, 200 safety belt assembly, 210 safety belt body, 211 full-body safety belt, 212 back fixing member, 213 hip fixing member, 220 tightener, 230 safety rope, 240 clamping ring, 300 main transformer, 400 flower beam. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Before further describing the embodiments of the present invention in detail, the directional nouns involved in the embodiments of the present invention, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the protection scope of the present invention.

[0054] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0055] Figure 1 FIG. 4 is a schematic diagram of a seat belt suspension device according to an embodiment of the present invention.

[0056] like Figure 1 As shown, one embodiment of the present invention provides a safety belt suspension device 100 for main transformer maintenance, the safety suspension device 100 comprising:

[0057] The lock head 110 is connected to the flower beam 400 above the main transformer 300;

[0058] The buckle 130 is fixedly connected to the safety belt assembly 200, and the safety belt assembly 200 is worn by the staff;

[0059] The operating rod 120 has one end connected to the lock head 110 , and the other end connected to the lock catch 130 .

[0060] Among them, the safety belt hanging device 100 includes a lock head 110, an operating rod 120 and a lock buckle 130 connected in sequence. The lock head 110 is connected to the flower beam 400 above the main transformer 300 to avoid directly hanging the safety belt assembly 200 on the main oil pipe from the transformer oil storage cabinet to the main body, which can ensure the use requirement of the safety belt assembly 200 to be hung high and used low; the lock buckle 130 is fixedly connected to the safety belt assembly 200. Due to the high-hanging and low-using form, the safety rope 230 in the safety belt assembly 200 is prevented from accumulating above the main transformer 300. On the one hand, the operating space of the staff is prevented from being compressed. On the other hand, it can avoid causing entanglement to the staff, avoid accidents, and ensure the safety of the staff.

[0061] Specifically, the lock head 110 is hung on the beam 400 above the main transformer 300, and the lock buckle 130 is fixedly connected to the safety belt assembly 200. Under the traction of the safety belt suspension device 100, the safety belt assembly 200 is always located above the legs of the worker, which can prevent the safety belt assembly 200 from occupying too much space above the main transformer 300 during work. On the one hand, a reliable operating position is reserved for the worker, and on the other hand, the safety of the worker is ensured by avoiding the accumulation of the safety belt assembly 200. At the same time, it meets the requirements of high hanging and low use, complies with the operating specifications, and ensures the safety of the operation.

[0062] In a feasible implementation manner, the lock 110 includes:

[0063] A hook 111, a first end of the hook 111 is hooked on the flower beam 400;

[0064] a tongue ring 112, located below the first end of the hook 111;

[0065] The screw rod 113 has one end fixedly connected to the side of the tongue ring 112 away from the hook 111, and the other end of the screw rod 113 is fixedly connected to the operating rod 120. The second end of the hook 111 is sleeved on the screw rod 113, and the tongue ring 112 is located between the first end of the hook 111 and the second end of the hook 111.

[0066] Among them, the hook 111 is connected to the screw 113, and the rotation of the screw 113 makes the tongue ring 112 on the screw 113 move toward the hook 111 or away from the hook 111. When the safety belt suspension device 100 needs to be used, the rotation of the screw 113 drives the tongue ring 112 to move toward the side close to the hook 111, and the hook 111 and the tongue ring 112 clamp the flower beam 400 to ensure the safety and stability of the lock head 110 hanging on the flower beam 400; when the maintenance work of the main transformer 300 is completed, the screw 113 is rotated in the opposite direction to drive the tongue ring 112 to move toward the side away from the hook 111, so that the distance between the tongue ring 112 and the hook 111 is increased, which is convenient for removing the safety belt suspension device 100 from the flower beam 400 for next use.

[0067] In a feasible implementation manner, the hook 111 includes:

[0068] The arc segment 1111 is hung on the flower beam 400, and the tongue ring 112 and the arc segment 1111 form a receiving space for receiving the flower beam 400;

[0069] The connecting section 1113 is movably connected to the screw rod 113, and the tongue ring 112 is located between the arc section 1111 and the connecting section 1113;

[0070] The transition section 1112 is used to connect the arc section 1111 and the connecting section 1113 .

[0071] The tongue ring 112 includes an arcuate groove, which matches the arcuate segment 1111 of the hook 111 , that is, the arcuate groove and the arcuate segment 1111 form a circular or elliptical accommodating space, which is convenient for clamping the flower beam 400 .

[0072] It should be noted that a threaded hole is provided at the center of the connecting section 1113, which matches the thread of the screw rod 113. The screw rod 113 is rotated to move up and down, thereby driving the tongue ring 112 on the screw rod 113 to move toward or away from the hook 111. The connection between the arc section 1111 and the connecting section 1113 is achieved through the transition section 1112 to ensure the stability and reliability of the rotation of the screw rod 113. The tongue ring 112 moves between the arc section 1111 and the connecting section 1113. The connecting section 1113 can ensure the connection between the hook 111 and the screw rod 113 on the one hand, and can also prevent the tongue ring 112 from falling off from the hook 111 on the other hand, thereby ensuring the safety of the lock 110. In other words, the hook 111 is composed of an L-shaped connecting plate and an arc section, the horizontal plate of the L-shaped connecting plate is movably connected to the screw rod 113, and the vertical plate of the L-shaped connecting plate is fixedly connected to the arc section 1111.

[0073] Illustratively, the lock head 110 in this embodiment is a steel component. The steel material has high strength and good corrosion resistance, plasticity and processability. It is also easy to maintain, which can increase the service life of the lock head 110 and thus extend the service life of the seat belt suspension device 100.

[0074] In a feasible implementation manner, the operating lever 120 includes:

[0075] A first operating rod 121, wherein a first end of the first operating rod 121 is connected to the lock head 110, and a second end of the first operating rod 121 is disposed in the second operating rod 122;

[0076] A second operating rod 122, wherein a first end of the second operating rod 122 is sleeved on a second end of the first operating rod 121, and a second end of the second operating rod 122 is connected to the lock buckle 130;

[0077] The locking member 123 includes a clamping portion and a shell. The clamping portion is sleeved on the first end of the second operating rod 122. The clamping portion includes an external thread segment and a plurality of elastic claw segments connected to each other. The external thread segment is located on the second operating rod 122, and the elastic claw segment is located on the outside of the first operating rod 121. An internal thread segment and a small-diameter segment are provided in the shell. The internal thread segment is detachably connected to the external thread. The inner diameter of the small-diameter segment is smaller than the inner diameter of the internal thread segment, and the inner diameter of the small-diameter segment is larger than the outer diameter of the first operating rod 121; or

[0078] The locking member 123 includes a cylindrical shell, and a part of the cylindrical shell is fixedly connected to the second operating rod, a clamping portion is provided on the side of the cylindrical shell facing the first operating rod 121, the clamping portion is connected to the cylindrical shell through an elastic member, a movable handle is provided on the cylindrical shell, a protruding block is provided on the side of the movable handle facing the clamping portion, and the protruding block is configured to clamp the clamping portion.

[0079] Among them, by the socket connection of the first operating rod 121 and the second operating rod 122, the length of the operating rod 120 can be adjusted, so that the operating rod 120 can be suitable for flower beams 400 of different heights and can be used by workers of different heights, thereby improving the use range of the safety belt suspension device 100.

[0080] It should be noted that, by providing the locking member 123 , the fixing function of a certain position of the first operating rod 121 and the second operating rod 122 can be ensured, thereby ensuring the reliability of the length adjustment of the operating rod 120 .

[0081] Exemplarily, when the locking member 123 is in the form of a shell and a pressing part, the internal thread section on the shell is first separated from the external thread section on the pressing part, and the shell can move on the first operating rod 121, and the length of the first operating rod 121 extending into the second operating rod 122 is adjusted, so that the lengths of the first operating rod 121 and the second operating rod 122 meet the needs of the staff, and the shell is moved toward the second operating rod 122 and then screwed together by the internal thread section and the external thread section. At this time, the small-diameter section gradually presses multiple elastic claw sections, and the elastic claw section is moved close to the first operating rod 121 and presses the first operating rod 121, so as to achieve the fixation of the position between the first operating rod 121 and the second operating rod 122. It is understandable that a rubber sheet can be provided on the side of the elastic claw section facing the first operating rod 121 to increase the friction between the elastic claw section and the first operating rod 121, so as to ensure the fixing effect between the elastic claw section and the first operating rod 121.

[0082] As another example, the locking member 123 can also be set to a cam clamping form. Specifically, the cylindrical shell is sleeved on the first operating rod 121 and the second operating rod 122, a part of the cylindrical shell is fixedly connected to the second operating rod 122, and a clamping portion is provided on the side of the cylindrical shell facing the first operating rod 121. The clamping portion is connected to the cylindrical shell through an elastic member (spring and / or elastic sheet). By pulling the movable handle on the cylindrical shell, the protruding block clamps the clamping portion, and then clamps the first operating rod 121, thereby fixing the position between the first operating rod 121 and the second operating rod 122. The movable handle is pulled toward the first operating rod 121, and the movable handle drives the protruding block to rotate toward the pressing part. The protruding block fits the pressing part and presses the pressing part toward the first operating rod 121. The movable handle is pulled toward the second operating rod 122, so that the protruding block rotates away from the pressing part. The pressing part moves away from the first operating rod 121 under the action of the elastic member, and the length between the first operating rod 121 and the second operating rod 122 is adjusted. It can be understood that the pressing part includes a substrate and a rubber sheet, and the rubber sheet is arranged toward the first operating rod 121 to increase the friction between the pressing part and the first operating rod 121, that is, the pressing force.

[0083] Figure 2 FIG. 4 is a schematic diagram of the connection between a first operating rod and a second operating rod according to an embodiment of the present invention.

[0084] In a possible implementation, Figure 2 As shown, a first protrusion 124 is provided at the second end of the first operating rod 121, and the first protrusion 124 protrudes toward the second operating rod 122;

[0085] A second protrusion 125 is disposed in the first end of the second operating rod 122, and the second protrusion 125 protrudes toward the first operating rod 121;

[0086] The first protrusion 124 is engaged with the second protrusion 125 .

[0087] It should be noted that the first protrusion 124 and the second protrusion 125 can be in a circular shape, so that when the first operating rod 121 rotates outward from the second operating rod 122, the first protrusion 124 and the second protrusion 125 can be locked, thereby preventing the first operating rod 121 from completely escaping from the second operating rod 122, thereby ensuring the reliability of the length adjustment of the operating rod 120.

[0088] For example, the length of the second operating rod 122 is usually greater than that of the first operating rod 121, so that the first operating rod 121 can be completely inserted into the second operating rod 122, and it is convenient to store after the work is completed. The first end of the first operating rod 121 is an elastic end, so that the first protrusion 124 of the first end of the first operating rod 121 can be compressed under the action of elastic force and enter the first end of the second operating rod 122, and the first protrusion 124 and the second protrusion 125 are engaged, so as to prevent the first operating rod 121 from falling out of the second operating rod 122.

[0089] For example, the first operating rod 121 and the second operating rod 122 may be integrally formed so that the first protrusion 124 on the first operating rod 121 and the second protrusion 125 on the second operating rod 122 can be engaged with each other.

[0090] In a feasible implementation manner, the first operating rod 121 , the second operating rod 122 and the locking member 123 are made of high-strength carbon fiber.

[0091] It should be noted that the strength of high-strength carbon fiber can reach more than 6000MPa, which is more than 30 times that of ordinary steel, and its density is only 1.6g / cm3 to 1.8g / cm3, which is 3 to 6 times lighter than steel and 1.5 times lighter than aluminum, which can avoid excessive weight, increase the burden of staff, and affect the maintenance work of staff. In other words, the use of high-strength lightweight materials can ensure the efficiency of maintenance work of staff. At the same time, it can also ensure the service life of the operating rod 120, thereby improving the service life of the seat belt suspension device 100.

[0092] Figure 3 is a schematic diagram of a lock according to an embodiment of the present invention; Figure 4 It is a schematic diagram of a lock from another perspective according to an embodiment of the present invention.

[0093] In a possible implementation, Figure 3 and Figure 4 As shown, the lock 130 includes:

[0094] A connecting shell 131 is connected to an end of the operating rod 120 away from the lock head 110, and a bayonet 134 is provided at the end of the connecting shell 131 away from the operating rod 120;

[0095] The locking assembly 132 is disposed in the connecting shell 131 , and a portion of the locking assembly 132 is configured to reciprocate on the bayonet 134 ;

[0096] A release button 133 , one end of which is located on the connecting shell 131 , and the other end of which is connected to the locking assembly 132 .

[0097] Among them, an external thread is set at one end of the connecting shell 131 close to the second operating rod 122, and an internal thread is set at one end of the second operating rod 122 close to the connecting shell 131, or an internal thread is set at one end of the connecting shell 131 close to the second operating rod 122, and an external thread is set at one end of the second operating rod 122 close to the connecting shell 131, thereby realizing a detachable connection between the lock buckle 130 and the operating rod 120, which is convenient for the staff to install.

[0098] For example, a rubber sheath is provided on the outside of the connection shell 131 to increase friction and facilitate disassembly and assembly by the staff. The snap ring 240 of the safety belt assembly 200 enters the connection shell 131 through the bayonet 134, and then the locking assembly 132 is pushed, and the snap ring 240 is sleeved on part of the locking assembly 132 to achieve the connection between the safety belt assembly 200 and the safety belt suspension device 100; when the maintenance work is completed, the locking assembly 132 is pushed by the release button 133, so that the snap ring 240 falls off from the locking assembly 132, and then is taken out from the bayonet 134, completing the separation of the safety belt assembly 200 from the safety belt suspension device 100.

[0099] In a possible implementation, the locking assembly 132 includes:

[0100] The locking tongue block 1321 is disposed in the connecting shell 131. The locking tongue block 1321 is provided with a first inclined surface. The bayonet 134 in the connecting shell 131 is provided with a second inclined surface. The first inclined surface matches the second inclined surface. The other end of the release button 133 is fixedly connected to the locking tongue block 1321.

[0101] A spring 1322 , one end of the spring 1322 is connected to a side of the locking tongue block 1321 away from the release button 133 , and the other end of the spring 1322 is connected to the connecting shell 131 .

[0102] The release button 133 is T-shaped, with a large end disposed on the connection shell 131, flush with the protective cover, and a small end fixedly connected to the lock tongue block 1321, and the bayonet 134 is located at the end of the connection shell 131 away from the second operating rod 122, and is located at the center of the connection shell 131. The lock tongue block 1321 includes a right-angled trapezoidal section and an L-shaped section, and the L-shaped section includes a vertically disposed connecting section and a vertical section, the connecting section is connected to the right-angled trapezoidal section, and the vertical section is connected to the small end of the release button 133, and the hypotenuse of the right-angled trapezoidal section is the first inclined surface. When the snap ring 240 enters the connection shell 131 from the bayonet 134, the snap ring 240 enters along the first inclined surface and squeezes the locking tongue block 1321 and the spring 1322 through external force until the snap ring 240 is sleeved on the locking tongue block 1321. When the external force is removed, the spring 1322 and the locking tongue block 1321 reclose the bayonet 134, thereby achieving the fixation of the snap ring 240 and the connection shell 131. When the snap ring 240 needs to be removed, the release button 133 is pressed, and the locking tongue block 1321 and the spring 1322 are compressed by the release button 133, so that the locking tongue block 1321 is away from the bayonet 134. After the snap ring 240 falls off from the locking tongue block 1321, it comes out through the bayonet 134, and then the release button 134 is released, and the locking tongue block 1321 and the spring 1322 reclose the bayonet 134.

[0103] It is understandable that the connection between the locking tongue block 1321 and the connecting shell 131 can be achieved by using one, two or more springs 1322. Considering the cost and practical application effect, two springs 1322 are used in this embodiment.

[0104] Figure 5 is a schematic diagram of a safety belt body according to an embodiment of the present invention; Figure 6 The figure is a schematic diagram of the use of a safety belt assembly according to an embodiment of the present invention.

[0105] like Figure 5 and Figure 6 As shown, one embodiment of the present invention provides a safety belt assembly 200 for main transformer maintenance, the safety belt assembly 200 comprising:

[0106] The safety belt suspension device 100 according to any one of claims 1 to 8, comprising a buckle 130;

[0107] The safety belt body 210 includes a buckle 240 , and the buckle 240 is detachably connected to the buckle 130 .

[0108] Among them, after the safety belt body 210 is connected to the safety belt suspension device 100 through the clamp 240, the safety belt body 210 can always be located above the legs of the worker, without occupying the operating space on the top of the main transformer 300, making the working environment more spacious and improving the maintenance efficiency; on the other hand, it prevents the safety rope 230 in the safety belt body 210 from falling on the top of the main transformer 300, causing a dangerous situation of being entangled by the worker, thereby improving the safety of the worker's maintenance.

[0109] In a feasible implementation manner, the safety belt body 210 includes:

[0110] A full-body safety belt 211 is provided with a back fixing part 212, a waist fixing part and a hip fixing part 213. Connecting strips are provided between the back fixing part 212 and the waist fixing part, and between the waist fixing part and the hip fixing part 213 respectively:

[0111] The tightener 220 is disposed on the side of the waist fixing member away from the full-body safety belt 211. A safety rope 230 is disposed inside the tightener 220. A clamp 240 is disposed on the safety rope 230. The clamp 240 is detachably connected to the buckle 130.

[0112] The safety belt body 210 includes a full-body safety belt 211, and the safety and comfort of the full-body safety belt 211 are improved by three-point positioning of the back, waist and hip. Connecting strips are respectively provided between the back fixing part 212 and the waist fixing part, and between the waist fixing part and the hip fixing part 213 to ensure the safety of the full-body safety belt 211. The waist fixing part is provided with a tightener 220, and the tightener 220 is used to store a safety rope 230. A clamp ring 240 is provided on one end of the safety rope 230 located outside the tightener 220.

[0113] It is understood that the tightener 220 is a tightener used for car seat belts, and the safety rope 230 is locked when the centrifugal force is away from the working conditions of fast pulling and slow pulling, so that the safety rope 230 can be extended, which can prevent the staff from moving quickly or falling from a high altitude, thereby improving the safety of the staff. The safety rope 230 is a flat strip that can be flatly stored in the tightener 220.

[0114] Specifically, when the main transformer 300 is overhauled, the specific use is as follows:

[0115] Step 1, the worker now wears the full-body safety belt 211 on the ground, and then climbs up the ladder to the top cover of the main transformer 300. After the worker stands firmly, the ground worker hands the safety belt hanging device 100 to the worker on the top cover of the main transformer.

[0116] Step 2, after the staff receives the safety belt suspension device 100, they adjust the length of the first operating rod 121 according to the distance between the flower beam 400 and their own height, and then tighten the locking piece 123 to ensure the stability of the fixed connection between the first operating rod 121 and the second operating rod 123.

[0117] Step 3, the staff stands on the top cover of the main transformer 300 and hangs the hook 111 of the safety belt suspension device 100 at a suitable position of the flower beam 400, and then rotates the operating lever 120 in his hand to drive the screw 113 to rotate, and then drives the tongue ring 112 to move closer to the hook 111 until the tongue ring 112 and the hook 111 clamp the flower beam 400.

[0118] Step 4, the staff then slowly rotates the snap ring 240 and the safety rope 230 so that the safety rope 230 is evenly pulled out from the tightener 220, and snaps the snap ring 240 into the lock buckle 130, and the staff begins the maintenance work.

[0119] It is understandable that after completing the maintenance work, the staff can complete the disassembly of the seat belt suspension device 100 and the seat belt body 210 by following the reverse steps, which will not be repeated here.

[0120] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0121] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The description and examples are to be considered exemplary only.

[0122] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety belt suspension device for main transformer maintenance, characterized in that: The safety suspension device comprises: The lock head is connected to the flower beam above the main transformer; A buckle, fixedly connected to a safety belt assembly, wherein the safety belt assembly is worn by a worker; An operating rod, one end of which is connected to the lock head, and the other end of which is connected to the lock catch.

2. The safety belt suspension device for main transformer maintenance according to claim 1 is characterized in that: The lock comprises: A hook, wherein the first end of the hook is hooked on the flower beam; a tongue ring located below the first end of the hook; A screw rod, one end of which is fixedly connected to a side of the tongue ring away from the hook, the other end of which is fixedly connected to the operating rod, the second end of the hook is sleeved on the screw rod, and the tongue ring is located between the first end of the hook and the second end of the hook.

3. The safety belt suspension device for main transformer maintenance according to claim 2 is characterized in that: The hook includes: An arc segment, the arc segment is hung on the flower beam, the tongue ring and the arc segment form a receiving space for receiving the flower beam; A connecting section, movably connected to the screw rod, wherein the tongue ring is located between the arc section and the connecting section; A transition section is used to connect the arc section and the connecting section.

4. The safety belt suspension device for main transformer maintenance according to claim 1 is characterized in that: The operating lever comprises: A first operating rod, wherein a first end of the first operating rod is connected to the lock head, and a second end of the first operating rod is disposed in the second operating rod; a second operating rod, wherein a first end of the second operating rod is sleeved on a second end of the first operating rod, and the second end of the second operating rod is connected to the lock buckle; A locking member, comprising a clamping portion and a shell, wherein the clamping portion is sleeved on the first end of the second operating rod, the clamping portion comprises an external thread segment and a plurality of elastic claw segments connected to each other, the external thread segment is located on the second operating rod, the elastic claw segment is located on the outside of the first operating rod, an internal thread segment and a small-diameter segment are arranged in the shell, the internal thread segment is detachably connected to the external thread, the inner diameter of the small-diameter segment is smaller than the inner diameter of the internal thread segment, and the inner diameter of the small-diameter segment is larger than the outer diameter of the first operating rod; or The locking member includes a cylindrical shell, and a part of the cylindrical shell is fixedly connected to the second operating rod, a clamping portion is provided on the side of the cylindrical shell facing the first operating rod, the clamping portion is connected to the cylindrical shell through an elastic member, a movable handle is provided on the cylindrical shell, a protruding block is provided on the side of the movable handle facing the clamping portion, and the protruding block is configured to clamp the clamping portion.

5. The safety belt suspension device for main transformer maintenance according to claim 4 is characterized in that: A first protrusion is provided at the second end of the first operating rod, and the first protrusion protrudes toward the second operating rod; A second protrusion is provided in the first end of the second operating rod, and the second protrusion protrudes toward the first operating rod; Wherein, the first protrusion is engaged with the second protrusion.

6. The safety belt suspension device for main transformer maintenance according to claim 4 or 5, characterized in that: The first operating rod, the second operating rod and the locking member are made of high-strength carbon fiber.

7. The safety belt suspension device for main transformer maintenance according to claim 1, characterized in that: The lock comprises: A connecting shell connected to an end of the operating rod away from the lock head, and a bayonet is provided at an end of the connecting shell away from the operating rod; A locking assembly is disposed in the connecting shell, and a portion of the locking assembly is configured to reciprocate on the bayonet; A release button, one end of which is located on the connecting shell, and the other end of which is connected to the locking assembly.

8. The safety belt suspension device for main transformer maintenance according to claim 7, characterized in that: The locking assembly comprises: A locking tongue block is arranged in the connecting shell, the locking tongue block is provided with a first inclined surface, the bayonet in the connecting shell is provided with a second inclined surface, the first inclined surface matches the second inclined surface, and the other end of the release button is fixedly connected to the locking tongue block; A spring, one end of which is connected to a side of the locking tongue block away from the release button, and the other end of which is connected to the connecting shell.

9. A safety belt assembly for main transformer maintenance, characterized in that: The seat belt assembly comprises: A safety belt suspension device as claimed in any one of claims 1 to 8, comprising a buckle; The safety belt body comprises a buckle, and the buckle is detachably connected to the buckle.

10. The safety belt assembly for main transformer maintenance according to claim 9, characterized in that: The safety belt body comprises: A full-body safety belt, wherein the full-body safety belt is provided with a back fixing part, a waist fixing part and a hip fixing part, and connecting strips are respectively provided between the back fixing part and the waist fixing part, and between the waist fixing part and the hip fixing part: The tightener is arranged on the side of the waist fixing part away from the full-body safety belt. A safety rope is arranged inside the tightener. A clamp is arranged on the safety rope. The clamp is detachably connected to the lock buckle.

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