Spacer wire clamp with wire protection sleeve

Abstract

The spacer wire clamp comprises a J-shaped hook, a movable clamping block, a movable clamping block fixing plate, a lead screw, a wire protection pipe and the wire protection sleeve, the J-shaped hook comprises a hook head, a hook body and a hook tail, the movable clamping block is fixed on the movable clamping block fixing plate, the movable clamping block fixing plate is arranged at one end of the lead screw, and the lead screw is fixed on the wire protection pipe. The lead screw is in threaded connection with the hook tail and penetrates through the hook tail, the movable clamping block is located in the J-shaped hook, the wire protecting pipe comprises a fixed pipe piece and a movable pipe piece which are fixedly arranged on a hook head of the J-shaped hook and the movable clamping block respectively, the wire protecting sleeve comprises two symmetrical wire protecting pads which are arranged on the fixed pipe piece and the movable pipe piece respectively, and the wire protecting pads are each provided with a wire groove. The wire clamp is provided with the wire protecting sleeve, stress concentration of a wire at two ports of the wire clamp is avoided, the wire cannot be damaged at the wire clamp, the wire is effectively protected, and the wire clamp can be used for a long time.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric power protection fittings, in particular to a wire clamp for a spacer with a wire protection sleeve. BACKGROUND

[0002] The spacer is installed on an overhead transmission line and is used for fixing the distance between wires to prevent whipping of the wires when dancing. The spacer is generally installed in the middle of a span. The main function of the spacer is to keep the distance between the wires stable. The wire clamp is installed on the wire. The existing wire clamp has a rotating function, that is, the wire clamp can rotate around the axis of the wire after clamping the wire, thereby improving the stability and safety of the overhead transmission line.

[0003] The existing spacer rotates around the axis. It is said that this design is to avoid eccentric icing of the wire and prevent the overhead transmission line from dancing. For example, a rotating wire clamp of a dancing-preventing spacer is disclosed in Chinese Patent No. CN118801278A, which comprises a main wire clamp shell, a wire clamp cover shell, a locking bolt, a roller and a cable sleeve. The wire clamp cover shell and the main wire clamp shell are rotatably connected through a pin shaft at the top. The wire clamp cover shell bottom and the main wire clamp shell handle top are provided with through holes for inserting the locking bolt. The cable sleeve is provided with a cable hole for clamping the wire. A plurality of rollers are arranged on the inner walls of the main wire clamp shell and the wire clamp cover shell, and the rollers roll on the outer wall of the cable sleeve.

[0004] In actual use, since the wire clamp can rotate around the axis of the wire and is not clamped to the wire, the wire clamp will be in a relatively stable position on the wire after being installed on the transmission line for a period of time, and the position will not change with the vibration or swing of the wire. Since the wire clamped by the wire clamp is short, stress concentration occurs at the two ports of the wire clamp. Under the long-term vibration of wind vibration and the like, the wire will be continuously abraded and the stress concentration will be superimposed and fatigued, so that cracks will be generated in the wire at the ports of the wire clamp, the wire will be frequently broken at the ports of the wire clamp, and the load capacity of the line will be affected, electric corona will be caused, and the mechanical properties of the line will be reduced. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the application provides a wire clamp for a spacer with a wire protection sleeve. The wire protection sleeve avoids stress concentration at the two ports of the wire clamp, the wire will not be damaged at the ports of the wire clamp, the wire is effectively protected, and the wire clamp can be used for a long time.

[0006] According to an aspect of the present application, a wire clamp with a wire protection sleeve for a spacer rod is provided in an embodiment, comprising a J-shaped hook, a movable clamp block, a movable clamp block fixing plate, a lead screw, a wire protection tube and a wire protection sleeve, the J-shaped hook comprises a hook head, a hook body and a hook tail, the movable clamp block is fixed on the movable clamp block fixing plate, the movable clamp block fixing plate is arranged at one end of the lead screw, the lead screw is threadedly connected through the hook tail, and the movable clamp block is located in the J-shaped hook, the wire protection tube comprises a fixed tube piece and a movable tube piece, and is respectively fixedly arranged on the hook head of the J-shaped hook and the movable clamp block, the wire protection sleeve comprises two wire protection pads which are symmetrically arranged on the fixed tube piece and the movable tube piece, and the wire protection pads are provided with wire grooves.

[0007] In some embodiments, a connecting plate is further arranged on the hook head of the J-shaped hook, so that the J-shaped hook has three connecting parts, i.e., the hook body, the hook tail and the connecting plate, and the spacer rod can be connected through any connecting part.

[0008] In some embodiments, a wire protection sleeve anti-rotation hole and a wire protection tube fixing screw hole are further arranged on the hook head of the J-shaped hook, and the hook head of the J-shaped hook has a notch.

[0009] In some embodiments, the movable clamp block has an arc-shaped groove, and the movable clamp block is also provided with a wire protection sleeve anti-rotation hole and a wire protection tube fixing screw hole.

[0010] In some embodiments, the length of the wire protection tube is 2-10 times the width of the hook head of the J-shaped hook.

[0011] In some embodiments, the fixed tube piece and the movable tube piece of the wire protection tube have staggered teeth and grooves at the joint.

[0012] In some embodiments, the fixed tube piece and the movable tube piece of the wire protection tube have wire protection sleeve positioning holes and countersunk screw holes, and the wire protection sleeve positioning holes are a plurality of.

[0013] In some embodiments, the two wire protection pads are provided with positioning column protrusions, and each wire protection pad is provided with at least two positioning column protrusions.

[0014] In some embodiments, the height of the positioning column protrusion is greater than the thickness of the wire protection tube.

[0015] In some embodiments, the length of the wire protection sleeve is greater than the length of the wire protection tube, so that the wire protection sleeve protrudes at both ends of the wire protection tube, and the protruding length is 1-20 mm.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The utility model discloses a spacer rod wire clamp with a wire protection sleeve, through setting the wire protection sleeve and wire protection tube longer than the wire clamping segment, make the wire not appear stress concentration place in the clamping portion port part, make stress get dispersed, thereby avoided the wire crack and broken strand phenomenon because stress concentration, can make spacer rod long -term use.

[0018] 2. The utility model discloses a spacer rod wire clamp with a wire protection sleeve, the wire protection sleeve is made of insulating rubber, has elasticity, can effectively avoid wire stress concentration. DRAWINGS

[0019] Figure 1 It is an angle structure schematic diagram of the utility model;

[0020] Figure 2 It is another angle structure schematic diagram of the utility model;

[0021] Figure 3 It is the structure schematic diagram of J hook of the utility model;

[0022] Figure 4 It is the structure schematic diagram of wire protection tube of the utility model;

[0023] Figure 5 It is the structure schematic diagram of wire protection sleeve of the utility model.

[0024] In the drawing: 1, J hook;11, hook head;12, wire protection tube fixed screw hole;13, wire protection sleeve anti -rotation hole;14, notch;15;hook body;16, hook tail;17, connecting plate;2, movable clamp block;3, movable clamp block fixed plate;4, screw;5, wire protection tube;51, fixed pipe piece;52, movable pipe piece;53, countersunk screw hole;54, wire protection sleeve positioning hole;55, protruding tooth;56, recess;6, wire protection sleeve;61, wire groove;62, positioning column convex. DETAILED DESCRIPTION

[0025] The application will be described in further detail below with specific embodiments in conjunction with the drawings. In different embodiments, similar elements are associated with similar element reference numbers. In the following embodiments, many details are described in order to make the application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification, in order to avoid the core part of the application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail according to the description in the specification and the general technical knowledge in the art.

[0026] In addition, features described in the specification, operations or characteristics can be combined in any appropriate manner to form various embodiments, and the steps involved in each embodiment can be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Therefore, the description and drawings are only for the purpose of clearly describing one embodiment, and do not mean the necessary composition and / or order.

[0027] The serial numbers of the components described herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connections (couplings) unless otherwise specified.

[0028] Embodiment:

[0029] Please refer to Figures 1-5 According to an aspect of the present application, a wire clamp with a wire sleeve for a spacer rod is provided in an embodiment, comprising a J-shaped hook 1, a movable clamp block 2, a movable clamp block fixing plate 3, a lead screw 4, a wire sleeve 5 and a wire sleeve 6.

[0030] The J-shaped hook 1 is made of metal, such as aluminum alloy, stainless steel, nickel-plated steel, titanium or titanium alloy, etc., comprising a hook head 11, a hook body 15 and a hook tail 16. The hook head 11 of the J-shaped hook 1 is also provided with a connecting plate 17. The hook body 15, the hook tail 16 and the connecting plate 17 are provided with fastener through holes, so that the J-shaped hook 1 has three connecting parts of the hook body 15, the hook tail 16 and the connecting plate 17, which can be connected to the spacer rod through the fastener by any connecting part, or two or three connecting parts at the same time.

[0031] The hook head 11 of the J-shaped hook 1 is also provided with a wire sleeve anti-rotation hole 12 and a wire sleeve fixing screw hole 13. The hook head 11 of the J-shaped hook 1 has a notch 14.

[0032] The movable clamp block 2 is made of the same metal as the J-shaped hook 1. The movable clamp block 2 has an arc-shaped groove. The movable clamp block 2 is also provided with a wire sleeve anti-rotation hole and a wire sleeve fixing screw hole. The movable clamp block 2 is fixed on the movable clamp block fixing plate 3. The movable clamp block fixing plate 3 is arranged at one end of the lead screw 4. The lead screw 4 is threadedly connected through the hook tail 15, so that the movable clamp block 2 is located in the J-shaped hook 1.

[0033] The wire sleeve 5, in addition to being made of the same metal as the J-shaped hook 1, can also be made of hard polymer materials or composite materials, such as glass steel, carbon fiber composite materials, etc. The length of the wire sleeve 5 is 2-10 times the width of the hook head 11 of the J-shaped hook 1. If the width of the hook head 11 of the J-shaped hook 1 is 8 cm, the length of the wire sleeve 5 is at least 16 cm and at most 80 cm.

[0034] The wire protection sleeve 6 includes two symmetrical wire protection pads made of insulating rubber and having certain elasticity, and two positioning column protrusions 62 are arranged on the wire protection pads, the positioning column protrusions 62 are inserted into the wire protection sleeve positioning holes 54 of the fixed pipe sheet 51 and the movable pipe sheet 52 of the wire protection sleeve 5 and the wire protection sleeve anti-rotation holes 13 of the hook head 11 of the J-shaped hook 1 and the movable clamp block 2, so that the wire protection sleeve 6 cannot rotate.

[0035] The fixed pipe sheet 51 and the movable pipe sheet 52 of the wire protection sleeve 6 have staggered and engaged convex teeth 55 and grooves 56 at the joint, in order to prevent the convex teeth 55 from engaging the wire during insertion into the grooves 56, that is, during clamping of the wire, the convex teeth 55 are made into wedge-shaped heads.

[0036] The wire protection sleeve 6 includes two symmetrical wire protection pads made of insulating rubber and having certain elasticity, and two positioning column protrusions 62 are arranged on the wire protection pads, the positioning column protrusions 62 are inserted into the wire protection sleeve positioning holes 54 of the fixed pipe sheet 51 and the movable pipe sheet 52 of the wire protection sleeve 5 and the wire protection sleeve anti-rotation holes 13 of the hook head 11 of the J-shaped hook 1 and the movable clamp block 2, so that the wire protection sleeve 6 cannot rotate.

[0037] The length of the wire protection sleeve 6 is greater than the length of the wire protection sleeve 5, so that the wire protection sleeve 6 protrudes at both ends of the wire protection sleeve 5, and the protruding length is 8mm.

[0038] The wire protection sleeve 6 includes two symmetrical wire protection pads made of insulating rubber and having certain elasticity, and two positioning column protrusions 62 are arranged on the wire protection pads, the positioning column protrusions 62 are inserted into the wire protection sleeve positioning holes 54 of the fixed pipe sheet 51 and the movable pipe sheet 52 of the wire protection sleeve 5 and the wire protection sleeve anti-rotation holes 13 of the hook head 11 of the J-shaped hook 1 and the movable clamp block 2, so that the wire protection sleeve 6 cannot rotate.

[0039] The wire protection sleeve 6 includes two symmetrical wire protection pads made of insulating rubber and having certain elasticity, and two positioning column protrusions 62 are arranged on the wire protection pads, the positioning column protrusions 62 are inserted into the wire protection sleeve positioning holes 54 of the fixed pipe sheet 51 and the movable pipe sheet 52 of the wire protection sleeve 5 and the wire protection sleeve anti-rotation holes 13 of the hook head 11 of the J-shaped hook 1 and the movable clamp block 2, so that the wire protection sleeve 6 cannot rotate.

[0040] The utility model is described above with specific examples, which is only used for helping to understand the utility model and does not limit the utility model. For the skilled in the art to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A wire clamp for a spacer bar with a protective sleeve, characterized in that: The device includes a J-shaped hook (1), a movable clamping block (2), a movable clamping block fixing plate (3), a lead screw (4), a wire protection tube (5), and a wire protection sleeve (6). The J-shaped hook (1) includes a hook head (11), a hook body (15), and a hook tail (16). The movable clamping block (2) is fixed on the movable clamping block fixing plate (3). The movable clamping block fixing plate (3) is located at one end of the lead screw (4). The lead screw (4) is threaded through the hook tail (16) so that the movable clamping block (2) is located inside the J-shaped hook (1). The wire protection tube (5) includes a fixed tube (51) and a movable tube (52), which are respectively fixed on the hook head (11) and the movable clamping block (2) of the J-shaped hook (1). The wire protection sleeve (6) includes two mutually symmetrical wire protection pads, which are respectively set on the fixed tube (51) and the movable tube (52). Each wire protection pad has a wire groove (61).

2. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The J-shaped hook (1) is also provided with a connecting plate (17) on the hook tail (16), so that the J-shaped hook (1) has three connecting parts: hook body (15), hook tail (16) and connecting plate (17).

3. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The hook head (11) of the J-shaped hook (1) is also provided with a wire sleeve anti-rotation hole (12) and a wire sleeve fixing screw hole (13), and the hook head (11) of the J-shaped hook (1) has a notch (14).

4. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The movable clamp (2) has an arc-shaped groove, and the movable clamp (2) is also provided with a wire sleeve anti-rotation hole and a wire tube fixing screw hole.

5. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The length of the protective tube (5) is 2-10 times the width of the hook head (11) of the J-shaped hook (1).

6. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The fixed tube segment (51) and the movable tube segment (52) of the protective tube (5) have interlocking protrusions (55) and grooves (56) at the joint.

7. A wire clamp for a spacer bar with a protective sleeve according to claim 6, characterized in that: The fixed tube segment (51) and the movable tube segment (52) of the protective tube (5) have protective sleeve positioning holes (54) and countersunk screw holes (53), and there are several protective sleeve positioning holes (54).

8. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The cable sheath (6) has two cable pads with positioning post protrusions, and each cable pad has at least two positioning post protrusions (62).

9. A wire clamp for a spacer bar with a protective sleeve according to claim 8, characterized in that: The height of the positioning post protrusion (62) is greater than the thickness of the protective tube (5).

10. A wire clamp for a spacer bar with a protective sleeve according to claim 1, characterized in that: The length of the sheath (6) is greater than the length of the sheath (5), so that the sheath (6) extends out at both ends of the sheath (5), with an extension length of 1-20mm.

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