Insulator pin puller

Abstract

The utility model relates to the technical field of electrician maintenance equipment, in particular to an insulator pin puller, which comprises a base plate, a sleeve, a screw rod, a connecting rod, a pulling hook, a handle, a first adjusting belt and a second adjusting belt, the sleeve is provided with internal threads; the lead screw is provided with external threads and penetrates through an inner cavity of the sleeve in the axial direction of the sleeve, and the external threads are matched with the internal threads. One end of each connecting rod is fixedly connected with the sleeve, the other end of each connecting rod is fixedly connected with the base plate, and the connecting rods are distributed at equal angles with the axis of the sleeve as the center; the pulling hook is coaxially and rotationally installed at the end, close to the base plate, of the lead screw. One end of the second adjusting belt is fixed on the other side of the base plate, and the other end is fixedly connected with a buckle male head; the insulator pin puller effectively solves the problem that the insulator pin puller in the prior art is poor in stability in the pin pulling process.

Description

Technical Field

[0001] The utility model relates to the technical field of electrician maintenance equipment, in particular to an insulator pin puller. Background Art

[0002] Insulators are an indispensable component of power systems, primarily used in overhead transmission lines. They not only support the conductors but also insulate them from the towers and the ground. Insulators must not only possess sufficient dielectric strength but also withstand various mechanical stresses, such as wind and hail, to ensure the safe and stable operation of power systems.

[0003] An insulator pin puller is a tool specifically designed to remove the R-shaped locking pins on insulators in power systems. During the maintenance and overhaul of transmission lines, insulator replacement and other repairs are often necessary. Pin pullers are essential for safely and efficiently removing the R-shaped locking pins on insulators. The design and use of pin pullers are crucial to improving operational efficiency and ensuring the safety of operators.

[0004] The existing insulator pin puller has an unscientific structural design, resulting in poor operational stability during the pinning process. For example, the utility model patent with application number: 202021272041.3, named "A Multifunctional Insulator Pin Puller", requires the operator to hold the pin in hand during the pinning process, which has poor stability. Utility Model Content

[0005] The utility model provides an insulator pin puller, which solves the problem of poor stability of the insulator pin puller in the prior art during the pin pulling process.

[0006] The utility model provides an insulator pin puller, comprising:

[0007] The base plate is a curved plate with an avoidance notch;

[0008] a sleeve having an internal thread;

[0009] A screw rod having an external thread and passing through the inner cavity of the sleeve along the axial direction of the sleeve, wherein the external thread cooperates with the internal thread;

[0010] There are multiple connecting rods, one end of which is fixedly connected to the sleeve and the other end is fixedly connected to the base plate, and the connecting rods are distributed at equal angles with the axis of the sleeve as the center;

[0011] A pull hook is coaxially rotatably mounted on one end of the screw rod close to the base plate;

[0012] A handle detachably connected to an end of the screw rod away from the base plate;

[0013] A first adjustment strap, one end of which is fixed to one side of the base plate and the other end of which is fixedly connected to a buckle female connector;

[0014] A second adjustment strap, one end of which is fixed to the other side of the base plate and the other end of which is fixed with a buckle male connector;

[0015] The screw rod is located above the avoidance notch, and the pull hook can pass through the avoidance notch. The female buckle head can be engaged with the male buckle head, and the female buckle head can slide on the first adjustment belt.

[0016] According to the insulator pin puller provided by the utility model, the inner side surfaces of the first adjustment band and the second adjustment band are both provided with a plurality of semi-cylindrical ridges.

[0017] According to the insulator pin puller provided by the present invention, a threaded hole is coaxially formed at one end of the screw rod away from the base plate, and a through hole is formed at the connecting end of the handle and the screw rod along the radial direction of the handle. The through hole is coaxially mounted with the threaded hole, and the inner diameter of the through hole is larger than the inner diameter of the threaded hole.

[0018] The invention also includes a latch having an external thread. The latch can pass through the through hole and be threadedly matched with the threaded hole.

[0019] According to the insulator pin puller provided by the utility model, both the first adjustment band and the second adjustment band have an interlayer space, and a shaped metal sheet is provided in the interlayer space.

[0020] According to the insulator pin puller provided by the present invention, the first adjustment band and the second adjustment band include an outer interlayer, a middle interlayer and an inner interlayer, wherein the outer interlayer and the inner interlayer are filled with gas, and a shaped metal sheet is arranged in the middle interlayer.

[0021] According to the insulator pin puller provided by the utility model, the inner side surface of the first adjustment band is provided with a plurality of one-way ratchets arranged in sequence along the length direction;

[0022] The buckle female head includes a shell, the first adjustment belt passes through the shell, a pawl is rotatably provided in the inner cavity of the shell, a torsion spring is provided on the rotating shaft of the pawl, and the pawl cooperates with the one-way ratchet to constrain the buckle female head to slide toward one end away from the base plate.

[0023] The utility model provides an insulator pin puller, which fixes a sleeve on an arc-shaped base plate, and fixes a first adjustment belt and a second adjustment belt on both sides of the base plate, and respectively fixes a female buckle head and a male buckle head on the first adjustment belt and the second adjustment belt; thus, it can achieve a wrap-around fixation of the insulator connecting rod, and then stably remove the R-shaped locking pin set on the connecting rod. Specifically:

[0024] By setting the base plate to an arc shape, the insulator connecting rod can be fitted to the greatest extent; by opening an avoidance notch on the base plate, the hook can be penetrated; by the coordinated installation of the sleeve and the screw rod, the axial movement of the screw rod relative to the sleeve can be achieved, thereby removing the R-shaped locking pin; by setting the first adjustment band and the second adjustment band, it can adapt to insulator connecting rods of different diameters.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the insulator pin puller provided by the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the insulator pin puller provided by the utility model;

[0029] Figure 3 This is a schematic diagram of the connection structure between the handle and the screw rod provided by the utility model;

[0030] Figure 4 It is a schematic diagram of the connection structure between the first adjustment belt and the buckle female head provided by the utility model.

[0031] Reference numerals:

[0032] 1. Base plate; 101. Avoidance notch; 2. Sleeve; 3. Screw; 301. Threaded hole; 4. Connecting rod; 5. Hook; 6. Handle; 601. Through hole; 7. First adjustment strap; 701. Outer interlayer; 702. Middle interlayer; 703. Inner interlayer; 704. Shaped metal sheet; 705. One-way ratchet; 8. Second adjustment strap; 9. Female buckle; 901. Housing; 902. Ratchet; 10. Male buckle; 11. Ridge; 12. Pin. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the embodiments of the present invention and to simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0036] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", 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 embodiment of the utility model. In this specification, the schematic expressions of the above terms do not 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0038] The following combination Figures 1 to 4 The embodiment shown in the figure describes the technical solution of the present invention: Figures 1 to 3 As shown:

[0039] The embodiment of the utility model provides an insulator pin puller, comprising: a base plate 1, a sleeve 2, a screw rod 3, a connecting rod 4, a pulling hook 5, a handle 6, a first adjusting strap 7 and a second adjusting strap 8, wherein the base plate 1 is an arc-shaped plate with an avoidance notch 101; the sleeve 2 has an internal thread; the screw rod 3 has an external thread, which passes through the inner cavity of the sleeve 2 along the axial direction of the sleeve 2, and the external thread and the internal thread cooperate with each other; there are multiple connecting rods 4, one end of which is fixed to the sleeve 2 and the other end is fixed to the base plate 1, and the connecting rods 4 are equiangularly distributed with the axis of the sleeve 2 as the center; the pulling hook 5 is coaxially rotatably installed on the end of the screw rod 3 close to the base plate 1; the handle 6 is detachably connected to the end of the screw rod 3 away from the base plate 1; one end of the first adjusting strap 7 is fixed to one side of the base plate 1, and the other end is fixed to a buckle female head 9; one end of the second adjusting strap 8 is fixed to the other side of the base plate 1 and the other end is fixed to a buckle male head 10;

[0040] Among them, the screw rod 3 is located above the avoidance notch 101, and the pull hook 5 can pass through the avoidance notch 101, the buckle female head 9 can be engaged with the buckle male head 10, and the buckle female head 9 can slide on the first adjustment belt 7.

[0041] It can be understood that the base plate 1, sleeve 2, screw rod 3, connecting rod 4, pull hook 5 and handle 6 are all metal parts, and the base plate 1 is bent downward to form an arc surface to adapt to the outer wall of the insulator connecting rod; the sleeve 2 and the screw rod 3 are threadedly connected; the two ends of the connecting rod 4 are respectively welded to the sleeve 2 and the base plate 1; the pull hook 5 is coaxially mounted on the screw rod 3 through a ball structure.

[0042] The utility model provides an insulator pin puller, which fixes the sleeve 2 on the arc-shaped base plate 1, and fixes the first adjustment belt 7 and the second adjustment belt 8 on both sides of the base plate 1, and fixes the female buckle 9 and the male buckle 10 on the first adjustment belt 7 and the second adjustment belt 8 respectively; in this way, the insulator connecting rod can be fixed in a wrapped manner, and the R-shaped locking pin set on the connecting rod 4 can be stably pulled out. Specifically:

[0043] By setting the base plate 1 to be arc-shaped, the insulator connecting rod can be fitted to the greatest extent; by providing an avoidance notch 101 on the base plate 1, the hook 5 can be penetrated; by the coordinated installation of the sleeve 2 and the screw rod 3, the screw rod 3 can be moved axially relative to the sleeve 2, thereby removing the R-shaped locking pin; by setting the first adjustment band 7 and the second adjustment band 8, it can adapt to insulator connecting rods of different diameters.

[0044] According to the insulator pin puller provided by the utility model, Figure 1 As shown, the inner side surfaces of the first adjustment belt 7 and the second adjustment belt 8 are both provided with a plurality of semi-cylindrical ridges 11 .

[0045] In some embodiments, the first adjustment band 7 and the second adjustment band 8 can be made of rubber material, and the semi-cylindrical ridge 11 is also made of rubber material, which can increase the friction between the first adjustment band 7 and the second adjustment band 8 and the insulator connecting rod to achieve better stabilization and is not prone to damage the surface of the insulator connecting rod.

[0046] According to the insulator pin puller provided by the utility model, Figure 2 and Figure 3 As shown, a threaded hole 301 is coaxially opened at one end of the screw rod 3 away from the base plate 1, and a through hole 601 is opened along the radial direction of the handle 6 at the connecting end of the handle 6. The through hole 601 is coaxially installed with the threaded hole 301, and the inner diameter of the through hole 601 is larger than the inner diameter of the threaded hole 301;

[0047] The latch 12 is further included. The latch 12 has an external thread. The latch 12 can pass through the through hole 601 and be threadedly matched with the threaded hole 301 .

[0048] In this way, the handle 6 and the screw rod 3 can be detachably installed, and when the handle 6 is removed, the screw rod 3 can be screwed in from the bottom of the sleeve 2, which facilitates the assembly of the two.

[0049] According to the insulator pin puller provided by the utility model, Figure 4 As shown, the first adjustment belt 7 and the second adjustment belt 8 both have an interlayer space, and a shaped metal sheet 704 is provided in the interlayer space.

[0050] The first adjustment belt 7 and the second adjustment belt 8 include an outer interlayer 701 , a middle interlayer 702 and an inner interlayer 703 , wherein the outer interlayer 701 and the inner interlayer 703 are filled with gas, and a shaped metal sheet 704 is provided in the middle interlayer 702 .

[0051] Therefore, the air cushion structure can be used to further reduce the damage to the insulator connecting rod caused by the insulator pin puller during operation; by arranging a shaping metal sheet 704 in the middle layer, the bending shaping of the first adjustment band 7 can be achieved, and the shaping metal sheet 704 can be made of a thin steel sheet, which can further increase the stability of the first adjustment band 7 and the second adjustment band 8 when they are encircling the insulator connecting rod.

[0052] According to the insulator pin puller provided by the utility model, Figure 4 As shown, the inner side surface of the first adjustment belt 7 is provided with a plurality of one-way ratchet teeth 705 arranged in sequence along the length direction;

[0053] The snap-on female connector 9 includes a shell 901, the first adjustment belt 7 passes through the shell 901, a pawl 902 is rotatably provided in the inner cavity of the shell 901, a torsion spring is provided on the rotating shaft of the pawl 902, and the pawl 902 cooperates with the one-way ratchet 705 to constrain the snap-on female connector 9 to slide toward the end away from the base plate 1.

[0054] In this way, the one-way sliding of the buckle female head 9 on the first adjustment belt 7 can be achieved. When it needs to be loosened, it is only necessary to manually rotate the pawl 902 in the opposite direction so that it does not contact the one-way ratchet 705.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An insulator pin puller, characterized in that: include: The base plate is a curved plate with an avoidance notch; a sleeve having an internal thread; A screw rod having an external thread and passing through the inner cavity of the sleeve along the axial direction of the sleeve, wherein the external thread cooperates with the internal thread; There are multiple connecting rods, one end of which is fixedly connected to the sleeve and the other end is fixedly connected to the base plate, and the connecting rods are distributed at equal angles with the axis of the sleeve as the center; A pull hook is coaxially rotatably mounted on one end of the screw rod close to the base plate; a handle detachably connected to an end of the screw rod away from the base plate; A first adjustment strap, one end of which is fixed to one side of the base plate and the other end of which is fixedly connected to a buckle female connector; A second adjustment strap, one end of which is fixed to the other side of the base plate and the other end of which is fixed with a buckle male connector; The screw rod is located above the avoidance notch, and the pull hook can pass through the avoidance notch. The female buckle head can be engaged with the male buckle head, and the female buckle head can slide on the first adjustment belt.

2. The insulator pin puller according to claim 1, characterized in that: The inner side surfaces of the first adjustment belt and the second adjustment belt are both provided with a plurality of semi-cylindrical ridges.

3. The insulator pin puller according to claim 2, characterized in that: A threaded hole is coaxially formed at one end of the screw rod away from the base plate, and a through hole is formed at the connecting end of the handle and the screw rod along the radial direction of the handle. The through hole is coaxially mounted with the threaded hole, and the inner diameter of the through hole is larger than the inner diameter of the threaded hole. The invention also includes a latch having an external thread. The latch can pass through the through hole and be threadedly matched with the threaded hole.

4. The insulator pin puller according to claim 2, characterized in that: The first adjustment belt and the second adjustment belt both have an interlayer space, and a shaped metal sheet is arranged in the interlayer space.

5. The insulator pin puller according to claim 4, characterized in that: The first adjustment belt and the second adjustment belt include an outer interlayer, a middle interlayer and an inner interlayer, wherein the outer interlayer and the inner interlayer are filled with gas, and a shaped metal sheet is arranged in the middle interlayer.

6. The insulator pin puller according to claim 5, characterized in that: The inner side surface of the first adjustment belt is provided with a plurality of one-way ratchets arranged in sequence along the length direction; The buckle female head includes a shell, the first adjustment belt passes through the shell, a pawl is rotatably provided in the inner cavity of the shell, a torsion spring is provided on the rotating shaft of the pawl, and the pawl cooperates with the one-way ratchet to constrain the buckle female head to slide toward one end away from the base plate.

Images