Tumbling tackle

Abstract

A somersault tackle comprises a hook and a tackle seat fixed at the bottom of the hook, the hook comprises a pulley, and the pulley is arranged in the hook; the hook is provided with an opening, a first rod is hinged to the upper end of the opening of the hook, and a buckling piece is movably installed at the free end of the first rod and used for being buckled with the inner wall of the hook, so that the first rod is parallel to the pulley; a clamping piece is arranged on the side, facing the pulley, of the first rod and used for limiting the left-right direction of the steel cable. According to the utility model, the pulley is consistent in size of the whole body, when the somersault pulley is used, the hook is hooked and buckled on the steel cable, so that the pulley is propped against the upper part of the steel cable, then the first rod is rotated, so that the buckling piece is buckled on the inner wall of the hook, the clamping piece is propped against the steel cable at the moment, and the left-right movement of the steel cable is limited by the clamping piece in the left-right direction. The steel cable only slides on one point of the pulley, and the pulley does not need to be arranged to be of a structure with two wide ends and a narrow middle, so that the pulley can bear larger weight.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power detection, in particular to a somersault pulley. Background Art

[0002] The bucket pulley in power construction refers to a device specially used for high-altitude operations. It usually consists of a pulley and a hook that slides along the steel cable, and uses the principle of sliding friction to move and position workers. In power construction, the bucket pulley is mainly used to install, maintain or repair wires, cables and other power equipment, especially in scenes such as overhead transmission lines and electric towers. The worker puts on safety equipment and is connected to the pulley by a rope, and then works by sliding along the steel cable.

[0003] The pulley of the existing hook is usually a structure with wide ends and narrow middle, such as Figure 4 As shown, in order to facilitate the steel cable to converge in the middle of the pulley, the pulley is not prone to swaying. However, when the heel pulley is lassoed on the steel cable, the gravity of the user borne by the pulley is concentrated in the middle of the pulley. If you want to make the pulley durable, you need to use expensive materials to make the pulley. Although such a pulley ensures stable operation of the pulley, it is not economical in production and manufacturing. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the utility model is to provide a heel pulley, so that the overall size of the pulley is consistent, which can increase the service life of the pulley and improve the load-bearing capacity.

[0005] To achieve this purpose, the utility model adopts the following technical solution: a heel pulley, comprising a hook and a pulley seat fixed to the bottom of the hook, the hook comprising a pulley, and the pulley is arranged in the hook;

[0006] The hook is provided with an opening, the hook is hinged with a first rod at the upper end of the opening, a buckle is movably mounted on the free end of the first rod, the buckle is used to buckle with the inner wall of the hook, so that the first rod is parallel to the pulley;

[0007] A clamping piece is provided on one side of the first rod facing the pulley, and the clamping piece is used to limit the left and right directions of the steel cable.

[0008] Preferably, the clamping member comprises two fixing blocks, which are arranged opposite to each other on the first rod, and a clamping space is left between the two fixing blocks, and the clamping space is used to limit the steel cable.

[0009] Preferably, the fixing block and the first rod are integrally formed.

[0010] Preferably, the facing surfaces of the two fixed blocks are both provided with sliding members;

[0011] When the clamping member limits the steel cable, the sliding member abuts against the surface of the steel cable.

[0012] Preferably, it further comprises a limit plate, which is fixedly arranged on the hook and protrudes from one side of the opening, and the rotation trajectory of the first rod passes through the limit plate.

[0013] Preferably, the length H of the limiting plate protruding toward the opening is greater than 1 / 4 of the length of the first rod.

[0014] Preferably, the hook is formed by an L-shaped plate and a U-shaped plate integrally formed, the L-shaped plate includes a first plate and a second plate perpendicular to each other, the first plate is connected to one end of the U-shaped plate; the U-shaped plate is away from the bottom of the L-shaped plate to form the opening;

[0015] The second plate is provided with a first through hole, and the pulley seat is fixed to the bottom of the second plate by bolts passing through the first through hole.

[0016] Preferably, it further comprises a reinforcing rib, one end of the reinforcing rib is fixed to the free end of the second plate, and the other end of the reinforcing rib is fixed to the body of the first plate.

[0017] Preferably, a groove is provided on the first rod away from the hinge, a buckle is provided inside the groove, and a return spring is connected between the bottom of the buckle and the bottom of the groove;

[0018] The top of the buckle is in an arc shape;

[0019] The U-shaped plate is further provided with a second through hole. When the first rod is buckled on the U-shaped plate, the buckle is inserted into and protrudes from the second through hole.

[0020] One of the above technical solutions has the following advantages or beneficial effects: In the utility model, the pulley is a pulley with the same size throughout the body. When using the heel block, the hook is hooked to the steel cable so that the pulley is against the top of the steel cable, and then the first rod is rotated so that the buckle is buckled to the inner wall of the hook. At this time, the buckle is against the steel cable, and the left and right directions of the steel cable are restricted by the buckle. The steel cable slides only at one point of the pulley, and the pulley does not need to be set as a structure with wide ends and narrow in the middle, so that the pulley can bear a larger weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0022] Figure 2 It is a schematic diagram of another state structure of an embodiment of the utility model.

[0023] Figure 3 It is a structural schematic diagram of an embodiment of the utility model.

[0024] Figure 4 It is a structural schematic diagram of a pulley of an existing bucket pulley.

[0025] Among them: hook 1, U-shaped plate 1a, L-shaped plate 1b, first plate 1ba, second plate 1bb, pulley seat 2, opening 3, first rod 4, snap member 5, snap connection member 6, snap connection space 6a, sliding member 7, limit plate 8, reinforcing rib 9, return spring 10, second through hole 11, pulley 12. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 3 As shown, a heel pulley comprises a hook (1) and a pulley seat (2) fixed to the bottom of the hook (1), the hook (1) comprises a pulley (12), and the pulley (12) is arranged in the hook (1);

[0031] The hook (1) is provided with an opening (3), the hook (1) is hinged with a first rod (4) at the upper end of the opening (3), a snap-fitting piece (5) is movably mounted on the free end of the first rod (4), the snap-fitting piece (5) is used to snap-fit ​​with the inner wall of the hook (1), so that the first rod (4) is parallel to the pulley (12);

[0032] A clamping piece (6) is provided on the side of the first rod (4) facing the pulley (12), and the clamping piece (6) is used to limit the left and right directions of the steel cable.

[0033] In the utility model, the pulley (12) is a pulley (12) of uniform size throughout the body. When using the heel pulley, the hook (1) is hooked to the steel cable so that the pulley (12) is against the top of the steel cable, and then the first rod (4) is rotated so that the buckle (5) is buckled to the inner wall of the hook (1). At this time, the buckle (6) is against the steel cable, and the left and right directions of the steel cable are restricted by the buckle (6). The steel cable slides only on one point of the pulley (12), and the pulley (12) does not need to be set as a structure with wide ends and narrow in the middle, so that the pulley (12) can bear a larger weight.

[0034] Preferably, the clamping member (6) comprises two fixing blocks, which are arranged opposite to each other on the first rod (4), and a clamping space (6a) is left between the two fixing blocks, and the clamping space (6a) is used to limit the steel cable.

[0035] In the utility model, the distance between the two fixing blocks is slightly larger than the diameter of the steel cable, so that when the first rod (4) is rotated, the steel cable can fall into the two clamping spaces (6a).

[0036] Preferably, the fixing block and the first rod (4) are integrally formed.

[0037] Since the fixing block is used to limit the left and right directions of the steel cable, the force it receives is usually in the left and right directions. When the fixing block and the first rod (4) are formed in one piece, part of the force received by the fixing block can be distributed to the first rod (4). At this time, the first rod (4) is in a horizontal state, and its force direction is the same as the structural direction, which facilitates the force distribution, making the fixing block more solid and durable.

[0038] Preferably, the facing surfaces of the two fixed blocks are both provided with sliding members (7);

[0039] When the clamping member (6) limits the position of the steel cable, the sliding member (7) abuts against the surface of the steel cable.

[0040] If the fixed block directly contacts the steel cable, the friction of the steel cable will increase, which makes it difficult for the pulley (12) to slide. This affects the movement of the staff. For this reason, in the utility model, a sliding member (7) is provided on the facing surfaces of the two fixed blocks. The sliding member (7) can be a roller. When the roller is engaged, it contacts the surface of the steel cable, which can reduce the friction received by the steel cable during movement, so that the staff can move smoothly.

[0041] Preferably, it further comprises a limit plate (8), wherein the limit plate (8) is fixedly arranged on the hook (1), and the limit plate (8) protrudes from one side of the opening (3), and the rotation trajectory of the first rod (4) passes through the limit plate (8).

[0042] According to the utility model, when buckling is performed, it is achieved by rotating the first plate (1ba). During the transportation of the product, there may be shaking. At this time, the first plate (1ba) may rotate in the direction away from the hook (1), so that the first rod (4) protrudes from the hook (1). During transportation, the goods are transported in large quantities. At this time, the protruding first rod (4) may collide, causing the first rod (4) to deform or fall off. When a limiting plate (8) is provided, the rotation direction of the first rod (4) is limited by the limiting plate (8) and cannot rotate in the direction of the limiting plate (8), thereby protecting the first rod (4).

[0043] Preferably, the length H of the limiting plate (8) protruding toward the opening (3) is greater than 1 / 4 of the length of the first rod (4).

[0044] At this time, when the first rod (4) rotates towards the limiting plate (8), the force applied to the limiting plate (8) is just equal to the length of the limiting plate (8) protruding from the opening (3). If the protruding length H of the limiting plate (8) is less than 1 / 4 of the length of the first rod (4), the force applied to each point of the limiting plate (8) will increase, thereby causing the limiting plate (8) to fall off from the hook (1).

[0045] Preferably, the hook (1) is formed by an L-shaped plate (1b) and a U-shaped plate (1a) being integrally formed, the L-shaped plate (1b) comprising a first plate (1ba) and a second plate (1bb) which are perpendicular to each other, the first plate (1ba) being connected to one end of the U-shaped plate (1a); the opening (3) is formed at the bottom of the U-shaped plate (1a) away from the L-shaped plate (1b);

[0046] The second plate (1bb) is provided with a first through hole, and the pulley seat (2) is fixed to the bottom of the second plate (1bb) by means of bolts passing through the first through hole.

[0047] Preferably, it further comprises a reinforcing rib (9), one end of the reinforcing rib (9) is fixed to the free end of the second plate (1bb), and the other end of the reinforcing rib (9) is fixed to the body of the first plate (1ba).

[0048] When in use, since the worker is put into the pulley seat (2) by rope, the second plate (1bb) will bear the weight of the worker. In order to strengthen the load-bearing capacity of the second plate (1bb), a reinforcing rib (9) is provided, and the two ends of the reinforcing rib (9) are respectively fixed to the first plate (1ba) and the second plate (1bb), so that the first plate (1ba), the second plate (1bb) and the reinforcing rib (9) form a triangular stable structure. The force strength of the second plate (1bb) is improved.

[0049] Preferably, the first rod (4) is provided with a groove away from the hinge, a buckle (5) is provided inside the groove, and a return spring (10) is connected between the bottom of the buckle (5) and the bottom of the groove;

[0050] The top of the buckle (5) is in an arc shape;

[0051] The U-shaped plate (1a) is also provided with a second through hole (11), and when the first rod (4) is buckled on the U-shaped plate (1a), the buckle (5) is inserted into and protrudes from the second through hole (11).

[0052] The buckle (5) is a columnar structure. When the first plate (1ba) is rotated to abut against the U-shaped plate (1a), the buckle (5) is retracted into the groove until the buckle (5) reaches the second through hole (11). At this time, the return spring (10) restores the elastic potential energy, so that the clamping member (6) protrudes from the second through hole (11), completing the buckle. The top of the buckle (5) is in an arc shape, which makes it easier to slide into the second through hole (11) when buckling.

[0053] It is worth mentioning that in order to ensure the stability between the buckle (5) and the first rod (4), the length of the buckle (5) in the groove should be greater than 2 to 3 cm.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heel pulley, comprising a hook (1) and a pulley seat (2) fixed to the bottom of the hook (1), characterized in that: The hook (1) comprises a pulley (12), and the pulley (12) is arranged inside the hook (1); The hook (1) is provided with an opening (3), the hook (1) is hinged with a first rod (4) at the upper end of the opening (3), a snap-fitting piece (5) is movably mounted on the free end of the first rod (4), the snap-fitting piece (5) is used to snap-fit ​​with the inner wall of the hook (1), so that the first rod (4) is parallel to the pulley (12); A clamping piece (6) is provided on the side of the first rod (4) facing the pulley (12), and the clamping piece (6) is used to limit the left and right directions of the steel cable.

2. A heel pulley according to claim 1, characterized in that: The clamping member (6) comprises two fixing blocks, which are arranged opposite to each other on the first rod (4), and a clamping space (6a) is left between the two fixing blocks, and the clamping space (6a) is used for limiting the steel cable.

3. A heel pulley according to claim 2, characterized in that: The fixing block and the first rod (4) are integrally formed.

4. A heel pulley according to claim 2, characterized in that: The facing surfaces of the two fixed blocks are both provided with sliding parts (7); When the clamping member (6) limits the position of the steel cable, the sliding member (7) abuts against the surface of the steel cable.

5. The heel pulley according to claim 1, characterized in that: It also comprises a limiting plate (8), which is fixedly arranged on the hook (1) and protrudes from one side of the opening (3), and the rotation trajectory of the first rod (4) passes through the limiting plate (8).

6. A heel pulley according to claim 5, characterized in that: The length H of the limiting plate (8) protruding toward the opening (3) is greater than 1 / 4 of the length of the first rod (4).

7. The heel pulley according to claim 1, characterized in that: The hook (1) is formed by an L-shaped plate (1b) and a U-shaped plate (1a) being integrally formed, the L-shaped plate (1b) comprising a first plate (1ba) and a second plate (1bb) which are perpendicular to each other, the first plate (1ba) being connected to one end of the U-shaped plate (1a); the opening (3) is formed at the bottom of the U-shaped plate (1a) away from the L-shaped plate (1b); The second plate (1bb) is provided with a first through hole, and the pulley seat (2) is fixed to the bottom of the second plate (1bb) by means of bolts passing through the first through hole.

8. The heel pulley according to claim 7, characterized in that: It also includes a reinforcing rib (9), one end of which is fixed to the free end of the second plate (1bb), and the other end of which is fixed to the body of the first plate (1ba).

9. The heel pulley according to claim 7, characterized in that: The first rod (4) is provided with a groove away from the hinge, a buckle (5) is provided inside the groove, and a return spring (10) is connected between the bottom of the buckle (5) and the bottom of the groove; The top of the buckle (5) is in an arc shape; The U-shaped plate (1a) is also provided with a second through hole (11), and when the first rod (4) is buckled on the U-shaped plate (1a), the buckle (5) is inserted into and protrudes from the second through hole (11).

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