A pulley

Abstract

The present application discloses a pulley comprising: a pulley body and a hook body; the hook body comprising a hook body, a locking plate, a connecting rod, and an elastic member; the hook body being connected to the pulley body, and an opening being formed between the seat of the hook body and the end of the hook; the locking plate being mounted on the opening, with a first end hinged to the seat and a second end in movable contact with the end of the hook; the elastic member being connected to the locking plate and configured to drive the locking plate to rotate toward the end of the hook; the connecting rod having a first end hinged to the locking plate and a second end movable through the hook body in a direction away from the end of the hook. The purpose of the present application is to provide a pulley that can be used to assist workers in carrying tools, is easy to assemble and disassemble, and improves work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of electric power working tools, and in particular to a pulley. Background Art

[0002] In modern power systems, overhead transmission line failures occur frequently, and regular maintenance of transmission lines is essential, which requires frequent aerial operations on overhead lines. When working on existing transmission lines, workers basically need to carry a large number of tools online, but this also increases the risk and difficulty of the operation. For this reason, pulley tools are also used in the existing technology to assist operators in carrying tools, reduce the weight of the operators, reduce the difficulty of the operation, and reduce the risk of the operation. The existing pulley assembly and disassembly process for assisting operators in carrying tools is relatively cumbersome, affecting the efficiency of the operation. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a pulley that can be used to assist workers in carrying tools, is easy to assemble and disassemble, and improves work efficiency.

[0004] In order to achieve the above technical objectives, the present application provides a pulley, comprising: a pulley body and a hook body;

[0005] The hook body includes a hook body, a locking plate, a connecting rod and an elastic member;

[0006] The hook body is connected to the pulley body, and an opening is formed between the seat of the hook body and the end of the hook;

[0007] The locking plate is mounted on the opening, with a first end hinged to the seat and a second end in active contact with the end of the hook;

[0008] The elastic member is connected to the lock plate and is used to drive the lock plate to rotate toward the end of the hook;

[0009] The first end of the connecting rod is hinged to the locking plate, and the second end is movable and passes through the hook body in a direction away from the end of the hook.

[0010] Furthermore, the lock plate is provided with a first avoidance slot for the first end of the connecting rod to pass through;

[0011] The first end of the connecting rod passes through the first avoidance slot and is hinged to the locking plate through a connecting shaft.

[0012] Furthermore, a second avoidance slot is provided on the hook body at a position opposite to the end of the bent hook, through which the second end of the connecting rod can move.

[0013] Furthermore, a limiting shaft is provided on the hook body at the position of the second avoidance slot;

[0014] The connecting rod is provided with a track through groove for avoiding the limiting shaft.

[0015] Furthermore, the connecting rod is arc-shaped.

[0016] Further, it also includes a pull ring;

[0017] The pull ring is detachably mounted on the second end of the connecting rod.

[0018] Furthermore, the pulley body is specifically a single-wheel pulley.

[0019] Furthermore, the pulley body includes two fixing plates and a wheel body;

[0020] The wheel body is pivotally connected between the two fixing plates;

[0021] A connecting block is fixed between the two fixing plates above the wheel body;

[0022] The seat portion is connected to the connection block.

[0023] Furthermore, a threaded hole is provided on a first end portion of the connecting block opposite to one of the fixing plates, and a first threaded rod movable through the other fixing plate is provided on a second end portion of the connecting block opposite to the other fixing plate;

[0024] The threaded hole is detachably provided with a bolt member;

[0025] The head of the bolt member contacts and abuts against an outer side wall of the fixing plate, and the rod portion passes through the fixing plate and is threadedly connected to the threaded hole;

[0026] A first nut is detachably provided on the first threaded rod;

[0027] The first nut member contacts and abuts against an outer side wall of another prime fixing plate.

[0028] Furthermore, a second threaded rod is provided at the bottom of the seat;

[0029] The second threaded rod movably passes through the connecting block, and a second nut is provided on the rod section of the second threaded rod passing through the connecting block;

[0030] The second nut member contacts and abuts against the bottom of the connecting block.

[0031] It can be seen from the above technical solution that the present application constitutes a pulley by setting a pulley body and a hook body; wherein an opening is formed between the seat of the hook body and the end of the bent hook to install a lock plate, and is used in combination with an elastic member to provide the lock plate with self-locking ability, and then a connecting rod hinged to the lock plate is used to drive the lock plate, which facilitates the opening and closing of the lock plate, improves the convenience of installation and disassembly of the pulley, and improves working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative labor.

[0033] Figure 1 This is an axle-side schematic diagram of a pulley provided in this application;

[0034] Figure 2 A front view of a pulley provided in this application;

[0035] Figure 3 This is an exploded schematic diagram of a pulley provided in this application;

[0036] In the figure: 1. hook body; 11. seat; 12. bent hook end; 13. second avoidance groove; 131. limit shaft; 14. second threaded rod; 141. second nut member; 2. lock plate; 21. first avoidance groove; 211. connecting shaft; 3. connecting rod; 31. track groove; 32. pull ring; 4. fixing plate; 5. wheel body; 6. connecting block; 61. threaded hole; 611. bolt member; 62. first threaded rod; 621. first nut member. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the embodiments of the present application.

[0038] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0040] An embodiment of the present application discloses a pulley.

[0041] See also Figure 1 , an embodiment of a pulley provided in the embodiments of the present application includes:

[0042] The pulley body and the hook body; the hook body includes a hook body 1, a locking plate 2, a connecting rod 3 and an elastic member (not shown in the figure); the hook body 1 is connected to the pulley body, and an opening is formed between the seat 11 of the hook body 1 and the bent hook end 12; the locking plate 2 is installed on the opening, and the first end is hinged to the seat 11, and the second end is in movable contact with the bent hook end 12; the elastic member is connected to the locking plate 2 and is used to drive the locking plate 2 to rotate toward the bent hook end 12; the first end of the connecting rod 3 is hinged to the locking plate 2, and the second end is movable through the hook body 1 in a direction away from the bent hook end 12.

[0043] Specifically, the installation and disassembly process of the pulley is as follows: pull the second end of the pull rod away from the hook end 12 to open the lock plate 2, and then the pull rod is released, and the lock plate 2 is reset and closed by using the elastic member to complete the installation / disassembly.

[0044] The above is the first embodiment of a pulley provided by the embodiment of the present application. The following is the second embodiment of a pulley provided by the embodiment of the present application. Please refer to the embodiment of the present application for details. Figures 1 to 3 .

[0045] A pulley comprises: a pulley body and a hook body; the hook body comprises a hook body 1, a locking plate 2, a connecting rod 3 and an elastic member; the hook body 1 is connected to the pulley body, and an opening is formed between the seat 11 and the bent hook end 12 of the hook body 1; the locking plate 2 is installed on the opening, and the first end is hinged to the seat 11, and the second end is in movable contact with the bent hook end 12; the elastic member is connected to the locking plate 2, and is used to drive the locking plate 2 to rotate toward the bent hook end 12; the first end of the connecting rod 3 is hinged to the locking plate 2, and the second end is movable through the hook body 1 in a direction away from the bent hook end 12.

[0046] Furthermore, a first avoidance slot 21 is provided on the lock plate 2 for the first end of the connecting rod 3 to pass through; the first end of the connecting rod 3 passes through the first avoidance slot 21 and is hinged to the lock plate 2 through the connecting shaft 211.

[0047] Specifically, the first end of the connecting rod 3 passes through the first avoidance slot 21 and is connected to the lock plate 2 through the connecting shaft 211, wherein the length of the first avoidance hole is greater than the width of the connecting rod 3, providing the connecting rod 3 with sufficient rotation space. This structural design can reduce the weight of the lock plate 2 by providing the first avoidance slot 21, thereby reducing the overall weight and saving manufacturing costs. Of course, in the present application, the first avoidance slot 21 can also be omitted, and a protrusion can be directly provided on the side wall of the lock plate 2 facing away from the opening, and the first end of the connecting rod 3 can cooperate with the protrusion through the connecting shaft 211. Of course, it is not limited to this connection method, and those skilled in the art can make appropriate changes based on this, and there are no specific restrictions. In addition, the first end of the lock plate 2 in the present application can also be hinged to the seat 11 through a corresponding connecting shaft, and there are no specific restrictions.

[0048] Furthermore, a second escape slot 13 is provided on the hook body 1 at a position opposite to the bent hook end 12 for the second end of the connecting rod 3 to move through. Similarly, the second escape slot 13 is also longer than the connecting rod 3 to avoid affecting the pulling of the connecting rod 3 and also reduce the weight of the hook body 1.

[0049] Furthermore, a limiting shaft 131 is provided on the hook body 1 at the position of the second avoidance slot 13 ; and a track slot 31 for avoiding the limiting shaft 131 is opened on the connecting rod 3 .

[0050] Specifically, the limiting shaft 131 and the track slot 31 provided on the connecting rod 3 to cooperate with the limiting shaft 131 serve to limit the movement trajectory of the connecting rod 3. This not only effectively secures the connecting rod 3 but also prevents the connecting rod 3 from being pulled out. Furthermore, based on this embodiment, the present application can also design the track slot 31 to have a width greater than the diameter of the limiting shaft 131, and provide a first convex tooth portion (not shown) on the limiting shaft 131, while correspondingly providing a second convex tooth portion (not shown) on the upper end wall of the track slot 31 to cooperate with the first convex tooth portion. When the second end of the lock plate 2 contacts and abuts the hook end 12, the connecting rod 3, under the action of its own gravity, causes the upper end wall of the track slot 31 to contact and abut the limiting shaft 131. At this time, the second convex tooth portion on the upper end wall precisely engages with the first convex tooth portion on the limiting shaft 131, thereby initiating a certain self-locking effect on the movement of the connecting rod 3 and further enhancing the self-locking capability of the lock plate 2. When pulling, the connecting rod 3 can be pushed upwards to make the second convex tooth portion of the connecting rod 3 disengage from the first convex tooth portion, and then pulled in a direction away from the hook end 12 to complete the disassembly and installation work.

[0051] Furthermore, the connecting rod 3 can be curved. Of course, it can also be straight, without limitation. In addition, the lock plate 2 in the present application can be V-shaped or curved inwardly toward the opening, which can enhance the structural strength of the lock plate 2.

[0052] Furthermore, a pull ring 32 is included; the pull ring 32 is detachably mounted on the second end of the connecting rod 3. The pull ring 32 can be rotatably mounted on the second end of the connecting rod 3 by a threaded connection, facilitating the pulling and drawing operation of the connecting rod 3.

[0053] Furthermore, the elastic member can specifically be a torsion spring, which can be installed at the hinged joint between the seat 11 and the lock plate 2, for example, sleeved on the connecting shaft at the hinged joint, with the first torque arm of the torsion spring in contact with and abutting against the lock plate 2, and the second torque arm in contact with and abutting against the seat 11. Of course, the elastic member can also be a spring, which can be directly sleeved on the connecting rod 3, with the first end in contact with and abutting against the lock plate 2, and the second end in contact with and abutting against the hook body 1. Of course, the present invention is not limited to the above two technical means, and those skilled in the art can make appropriate modifications based on this.

[0054] Furthermore, the pulley body is specifically a single-wheel pulley. Of course, a multi-wheel pulley is also possible, and the specific selection can be based on actual needs and is not limited. Taking a single-wheel pulley as an example, the pulley body may include two fixed plates 4 and a wheel body 5; the wheel body 5 is pivotally connected between the two fixed plates 4; a connecting block 6 is fixed above the wheel body 5 between the two fixed plates 4; and the seat 11 is connected to the connecting block 6. A certain gap is provided between the connecting block 6 and the wheel body 5 for the rope to pass through.

[0055] Furthermore, a threaded hole 61 is provided on the first end portion of the connecting block 6 opposite to one fixing plate 4, and a first threaded rod 62 that is movable through the other fixing plate 4 is provided on the second end portion of the connecting block 6 opposite to the other fixing plate 4; a bolt member 611 is detachably provided on the threaded hole 61; the head of the bolt member 611 contacts and abuts against the outer side wall of one fixing plate 4, and the rod portion passes through the fixing plate 4 and is threadedly connected to the threaded hole 61; a first nut member 621 is detachably provided on the first threaded rod 62; the first nut member 621 contacts and abuts against the outer side wall of the other fixing plate 4.

[0056] Specifically, the bolt 611 cooperates with the connecting block 6 to clamp and secure one fixing plate 4, while the first nut 621 cooperates with the first threaded rod 62 to clamp and secure the other fixing plate 4, thereby achieving a secure fit between the two fixing plates 4 and the connecting block 6. This fixing method is easy to disassemble and maintain. Those skilled in the art may make appropriate modifications based on this, and the specific details are not limited.

[0057] Furthermore, a second threaded rod 14 is provided at the bottom of the seat 11; the second threaded rod 14 movably passes through the connecting block 6, and a second nut 141 is provided on the rod section of the second threaded rod 14 passing through the connecting block 6; the second nut 141 contacts and abuts against the bottom of the connecting block 6. Figure 3As shown, this structural design facilitates the disassembly and installation of the hook body 1 and the connecting block 6, and makes maintenance more convenient. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation.

[0058] It can be seen from the above technical solution that the present application constitutes a pulley by setting a pulley body and a hook body; wherein an opening is formed between the seat 11 of the hook body 1 and the bent hook end 12 to install the lock plate 2, and is used in combination with an elastic member to provide the lock plate 2 with self-locking ability, and then the connecting rod 3 hinged to the lock plate 2 is used to drive the lock plate 2, which facilitates the opening and closing of the lock plate 2, improves the convenience of installation and disassembly of the pulley, and improves working efficiency.

[0059] The above is a detailed introduction to a pulley provided in the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A pulley, characterized in that: Including: a pulley body and a hook body; The hook body includes a hook body, a locking plate, a connecting rod and an elastic member; The hook body is connected to the pulley body, and an opening is formed between the seat of the hook body and the end of the hook; The locking plate is mounted on the opening, with a first end hinged to the seat and a second end in active contact with the end of the hook; The elastic member is connected to the lock plate and is used to drive the lock plate to rotate toward the end of the hook; The first end of the connecting rod is hinged to the locking plate, and the second end is movable and passes through the hook body in a direction away from the end of the hook; The lock plate is provided with a first avoidance slot for the first end of the connecting rod to pass through; The first end of the connecting rod passes through the first avoidance slot and is hinged to the locking plate via a connecting shaft; The hook body is provided with a second avoidance slot at a position opposite to the end of the hook for the second end of the connecting rod to move through; The hook body is provided with a limiting shaft at the position of the second avoidance slot; The connecting rod is provided with a through groove for avoiding the track of the limiting shaft; The width of the track groove is greater than the diameter of the limiting shaft; The limiting shaft is provided with a first convex tooth portion; A second convex tooth portion cooperating with the first convex tooth portion is provided on the upper end wall of the track groove; When the second end of the locking plate contacts and abuts against the end of the hook, the connecting rod, under the action of its own gravity, causes the upper end wall of the track slot to contact and abut against the limit shaft. At this time, the second convex tooth portion on the upper end wall just meshes with the first convex tooth portion on the limit shaft, thereby achieving a self-locking effect on the movement of the connecting rod; Also includes pull tabs; The pull ring is detachably mounted on the second end of the connecting rod.

2. A pulley according to claim 1, characterized in that: The connecting rod is arc-shaped.

3. A pulley according to claim 1, characterized in that: The pulley body is specifically a single-wheel pulley.

4. A pulley according to claim 3, characterized in that: The pulley body includes two fixed plates and a wheel body; The wheel body is pivotally connected between the two fixing plates; A connecting block is fixed between the two fixing plates above the wheel body; The seat portion is connected to the connection block.

5. A pulley according to claim 4, characterized in that: A threaded hole is provided on a first end portion of the connecting block opposite to one of the fixing plates, and a first threaded rod is provided on a second end portion of the connecting block opposite to the other fixing plate, which can move through the other fixing plate; The threaded hole is detachably provided with a bolt member; The head of the bolt member contacts and abuts against an outer side wall of the fixing plate, and the rod portion passes through the fixing plate and is threadedly connected to the threaded hole; A first nut is detachably provided on the first threaded rod; The first nut member contacts and abuts against an outer side wall of another prime fixing plate.

6. A pulley according to claim 5, characterized in that: A second threaded rod is provided at the bottom of the seat; The second threaded rod movably passes through the connecting block, and a second nut is provided on the rod section of the second threaded rod passing through the connecting block; The second nut member contacts and abuts against the bottom of the connecting block.

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