Self-standing herringbone derrick mast

Abstract

The utility model provides a self-standing herringbone derrick mast. The self-standing herringbone derrick mast comprises two auxiliary frames, two derrick masts and a cable traction machine, the top portions of the two derrick masts are hinged to each other, the tail ends of the two derrick masts are fixed to the two auxiliary frames respectively in the pole erecting or pole retracting process, the two auxiliary frames are connected to the cable traction machine through cables respectively, and the cable traction machine achieves pole erecting or pole retracting of the derrick masts by retracting and releasing the cables. According to the self-standing herringbone derrick mast, the auxiliary frame and the cable traction machine are arranged to be matched with each other, so that manual rod supporting is not needed in the rod erecting or retracting process of the herringbone derrick mast, potential safety hazards caused by manual rod supporting are avoided, and the safety coefficient of the derrick mast is improved. In addition, large-scale improvement on an existing derrick mast is not needed, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to a raking rod, in particular to a self-standing herringbone raking rod. Background Art

[0002] A lifting pole is a commonly used lifting equipment in the process of power construction. It can provide a stable lifting platform during power construction processes such as power line construction, power equipment installation, power equipment maintenance, and cable laying. It is used to lift large power transmission and transformation equipment such as utility poles, transmission towers, transformers, and generators. It can cope with more complex power construction environments and lifting requirements to ensure efficient construction.

[0003] The lifting rod has the advantages of strong stability, strong load-bearing capacity, wide adaptability and easy operation due to its high rod body and simple structure. Among them, the herringbone lifting rod is a commonly used lifting rod tool. Its structure is in the shape of a herringbone. It is generally composed of two logs or two steel pipes tied with steel wire ropes or hinged by iron parts. The angle between the two rods is generally 20-30 degrees. A pull rod or pull rope is provided at the bottom to balance the horizontal thrust. The herringbone design of the lifting rod provides higher stability, making it more stable and reliable when lifting heavy objects. At the same time, due to its special structural design, the herringbone lifting rod usually has a greater load-bearing capacity and can cope with heavier lifting tasks. In addition, enhanced stability and increased load-bearing capacity usually also mean improved safety in lifting operations. At present, the entire process of erecting the herringbone lifting rod requires manual operation, which leads to defects such as inconvenient installation and unsafe installation of the herringbone lifting rod.

[0004] In view of the shortcomings of the existing technology, those skilled in the art have made many technical improvements. Chinese patent CN209306827U discloses a lightweight, electric, self-supporting herringbone raking bar set, which includes two raking bars with their upper ends hinged to each other and a foot block fixed to the lower end of the raking bars. The foot block includes a foot plate, a rotating plate and a support plate vertically arranged on the foot plate. The rotating plate is hinged to the lower end of the raking bar via a pin, and the end of the support plate is hinged to a pulley. However, this utility model only provides a block at the foot of the raking bar. During the process of setting up and closing the bar, manual support is required, which has a low safety factor and cannot achieve complete self-support.

[0005] In summary, it is urgent to provide a self-supporting herringbone picket with a simple structure, a high degree of self-support and a high safety factor. Utility Model Content

[0006] In view of this, the utility model provides a self-supporting herringbone picker bar to solve the defects of the picker bar in the prior art, such as low self-supporting degree and low safety.

[0007] In a first aspect, a self-supporting herringbone jack comprises two auxiliary frames, two jacks and a cable pulling machine;

[0008] The tops of the two grab bars are hinged to each other. During the process of erecting or retracting the bars, the ends of the two grab bars are respectively fixed on two auxiliary frames. The two auxiliary frames are respectively connected to cable traction machines through cables. The cable traction machines realize the erection or retraction of the grab bars by retracting and releasing the cables.

[0009] In one possible implementation, the auxiliary frame includes two legs, a crossbeam, a fixing member, and two pulleys;

[0010] The top ends of the two legs are respectively fixedly connected vertically to the two ends of the beam, and the two pulleys are respectively fixedly connected to the ends of the two legs;

[0011] A fixing piece is fixedly provided on the side surface of the crossbeam so that the end of the pulling rod can be fixed on the crossbeam during the process of erecting or retracting the pole.

[0012] In a possible implementation, the fixing member includes a base, a movable member, and a bolt;

[0013] The base is fixed on the side of the beam, and the bolts connect the movable part to the base in a detachable manner. Corresponding grooves are respectively provided on the base and the movable part.

[0014] In a possible implementation, the auxiliary frame further includes a second crossbeam, which is arranged parallel to the crossbeam, and whose two ends are respectively fixedly connected to the middle positions of the two supporting legs.

[0015] In a possible implementation, a fixing piece is fixedly provided on the second crossbeam, the second crossbeam and the fixing piece on the crossbeam are provided on the same side, and the two fixing pieces are arranged in a straight line in the longitudinal direction.

[0016] In a possible implementation, a rope lock is fixedly provided on the other side surface of the second crossbeam opposite to the fixing member.

[0017] Compared with the prior art, the following technical effects are achieved in the embodiments of the present invention:

[0018] (1) The utility model provides a self-standing herringbone lifting pole. By setting up an auxiliary frame and a cable pulling machine, the herringbone lifting pole can be erected or retracted without the need for manual support, thereby avoiding the safety hazards caused by manual support and improving the safety factor of the lifting pole.

[0019] (2) The self-supporting herringbone raking rod of the utility model does not require large-scale improvement of the existing raking rod, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A front view of an auxiliary frame of a self-standing herringbone slatted bar provided in an embodiment of the present utility model;

[0022] Figure 2 A front view from another angle of an auxiliary frame of a self-standing herringbone slatted bar provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a self-supporting herringbone sling in use provided by an embodiment of the present utility model;

[0024] Among them, 1- auxiliary frame; 2- pulling rod; 3- cable traction machine; 11- crossbeam; 12- second crossbeam; 13- pulley; 14- support leg; 15- fixing part; 151- base; 152- movable part; 153- bolt; 16- rope buckle; 31- cable. DETAILED DESCRIPTION

[0025] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0028] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0029] A self-standing herringbone gantry mast comprises two auxiliary frames 1, two gantry masts 2, and a cable traction machine 3. The tops of the two gantry masts 2 are hinged to each other. During the erection or retraction process, the ends of the two gantry masts 2 are fixed to the two auxiliary frames 1. The two auxiliary frames 1 are connected to the cable traction machine 3 via cables 31. The cable traction machine 3 erects or retracts the gantry mast by retracting and extending the cables 31.

[0030] See also Figure 1 , is a front view of an auxiliary frame of a self-supporting herringbone slatted bar provided by an embodiment of the present invention. Figure 1 As shown, the auxiliary frame 1 includes two supporting legs 14 , a crossbeam 11 , a fixing member 15 and two pulleys 13 .

[0031] The top ends of the two supporting legs 14 are respectively fixedly connected vertically to the two ends of the beam 11 , and the two pulleys 13 are respectively fixedly connected to the ends of the two supporting legs 14 .

[0032] A fixing piece 15 is fixedly provided on the side surface of the cross beam 11 so that when the pulling rod 2 is erected or retracted, the end of the pulling rod 2 is fixed on the cross beam 11.

[0033] Furthermore, the fixing member 15 includes a base 151, a movable member 152, and a bolt 153. The base 151 is fixed to the side of the crossbeam 11, and the bolt 153 detachably connects the movable member 152 to the base 151. The base 151 and the movable member 152 are respectively provided with corresponding grooves. When the base 151 and the movable member 152 are connected together, the end of the pick rod 12 is fixed between the grooves of the base 151 and the movable member 152.

[0034] Furthermore, the auxiliary frame 1 further includes a second crossbeam 12 . The second crossbeam 12 is arranged parallel to the crossbeam 11 , and both ends of the second crossbeam 12 are fixedly connected to the middle positions of the two supporting legs 14 .

[0035] The second crossbeam 12 is fixed with a fixing member 15. The second crossbeam 12 and the fixing member 15 on the crossbeam 11 are arranged on the same side, and the two fixing members 15 are arranged in a straight line in the longitudinal direction. The second crossbeam 12 is provided to improve the firmness of the auxiliary frame 1. The two fixing members 15 on the crossbeam 11 and the second crossbeam 12 also improve the firmness of the auxiliary frame 1 in fixing the pick rod 2.

[0036] See also Figure 2 , is a front view from another angle of the auxiliary frame of a self-standing herringbone scissor lift provided by the embodiment of the present invention. Figure 2 As shown, a rope buckle 16 is fixedly provided on the other side surface of the second cross beam 12 opposite to the fixing member 15 .

[0037] See also Figure 3 , is a schematic diagram of the use state of a self-supporting herringbone picker provided by an embodiment of the utility model. Figure 3 As shown, in the process of erecting the self-standing herringbone lifting pole, first, the tops of the two lifting poles 2 are hinged together; then, the ends of the two lifting poles 2 are fixed to the two auxiliary frames 1 respectively through the fixing parts 15; one end of the two cables 31 is connected to the rope buckle 16 of the auxiliary frame 1 respectively, and the other ends of the two cables 31 are connected to the cable pulling machine 3 respectively; the cable pulling machine 3 is fixed on the ground between the two auxiliary frames 1; the cable pulling machine 3 is turned on, and the cable pulling machine 3 is wound to tighten the two cables 31, thereby shortening the distance between the two auxiliary frames 1, so that the two lifting poles 2 stand up; when the lifting pole 2 stands at a suitable angle, the cable pulling machine 3 stops winding the cable, opens the fixing parts 15, separates the lifting pole 2 from the auxiliary frame 1, removes the auxiliary frame 1, and fixes the ends of the two lifting poles 2 on the ground respectively; unties the cables 31, and removes the cable pulling machine 3. In the process of erecting the pole, the fixing effect of the two auxiliary frames 1 makes the entire system unnecessary for manual support.

[0038] During the process of closing the self-supporting herringbone jack, the cable pulling machine 3 is fixed at the position between the two jacks 2; one end of the two cables 31 is fixed to the cable pulling machine 3, and the other end of the two cables 31 is fixed to the rope buckles 16 of the two auxiliary frames 1; the two jacks 2 are successively removed from the ground, and the ends of the two jacks 2 are fixed to the two auxiliary frames 1 through the fixing parts 15, at which time the two jacks 2 are self-supporting through the auxiliary frames; the cable pulling machine 3 starts to pay out the wire, and the two auxiliary frames 1 start to move away from each other under the drive of gravity, driving the two jacks 2 to start descending, and the jack is closed. During the process of closing the jack, the fixing effect of the two auxiliary frames 1 makes it unnecessary for the entire system to manually support the jack.

[0039] It should be noted that the main invention of this application lies in the auxiliary frame 1, and the specific structure of the lifting rod is common knowledge. Therefore, the existing technologies such as the lifting rod hook, starting traction machine, lifting wire rope, and fixed foot are not described in detail. In addition, the power supply mode and driving mode of the cable traction machine 3 in this application are conventional choices of those skilled in the art. Those skilled in the art can freely choose the driving mode of the motor (battery, wire, etc.) and the setting mode of the driving component according to the actual design needs, and this utility model will not elaborate on them. As for whether the external power supply is an external battery or a wire, it is a conventional choice of those skilled in the art, and this utility model will not elaborate on it either. On this basis, the conventional design / modification made by those skilled in the art to achieve the technical effect of this utility model based on the common knowledge in this field are all conventional technical means in this field, and this utility model will not elaborate on them either.

[0040] In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0041] The above description is merely a specific embodiment of the present application. Any person skilled in the art may easily conceive of variations or substitutions within the technical scope disclosed in this application, and such variations or substitutions shall be within the scope of protection of this application. The scope of protection of this application shall be subject to the scope of protection of the claims.

Claims

1. A self-supporting herringbone shovel, characterized in that: The self-supporting herringbone traction rod comprises two auxiliary frames (1), two traction rods (2) and a cable pulling machine (3); The tops of the two lifting rods (2) are hinged to each other. During the process of erecting or retracting the rods, the ends of the two lifting rods (2) are respectively fixed on two auxiliary frames (1). The two auxiliary frames (1) are respectively connected to the cable traction machine (3) through cables (31). The cable traction machine (3) realizes the erection or retraction of the lifting rods by retracting and extending the cables (31).

2. A self-supporting herringbone picker according to claim 1, characterized in that: The auxiliary frame (1) comprises two supporting legs (14), a crossbeam (11), a fixing member (15) and two pulleys (13); The top ends of the two supporting legs (14) are respectively fixedly connected vertically to the two ends of the crossbeam (11), and the two pulleys (13) are respectively fixedly connected to the ends of the two supporting legs (14); A fixing piece (15) is fixedly provided on the side surface of the crossbeam (11) so that the end of the pulling rod (2) can be fixed on the crossbeam (11) during the process of erecting or retracting the pole.

3. A self-supporting herringbone picker according to claim 2, characterized in that: The fixing member (15) includes a base (151), a movable member (152) and a bolt (153); The base (151) is fixed on the side of the crossbeam (11), and the bolt (153) connects the movable part (152) to the base (151) in a detachable manner. Corresponding grooves are respectively provided on the base (151) and the movable part (152).

4. The self-supporting herringbone picket bar according to claim 2, characterized in that: The auxiliary frame (1) further comprises a second crossbeam (12), which is arranged parallel to the crossbeam (11), and whose two ends are respectively fixedly connected to the middle positions of the two supporting legs (14).

5. The self-supporting herringbone picker according to claim 4, characterized in that: A fixing piece (15) is fixedly provided on the second crossbeam (12); the second crossbeam (12) and the fixing piece (15) on the crossbeam (11) are provided on the same side, and the two fixing pieces (15) are arranged in a straight line in the longitudinal direction.

6. The self-supporting herringbone picker according to claim 4, characterized in that: A rope buckle (16) is fixedly provided on the other side surface of the second crossbeam (12) opposite to the fixing member (15).

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