CN214900067U

CN214900067U - Bolt type strain clamp capable of dispersing stress

Info

Publication number: CN214900067U
Application number: CN202121499213.5U
Authority: CN
Inventors: 谭华林
Original assignee: Sichuan Dongxuhao Electrical Equipment Co ltd
Current assignee: Sichuan Dongxuhao Electrical Equipment Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-11-26
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a bolt type strain clamp capable of dispersing stress, which comprises a winding part and a wire clamping part, wherein one end of the winding part is connected with one end of the wire clamping part and is used for changing the trend of a cable; a winding channel for dispersing the stress of the winding part is arranged in the winding part; the wire clamping part is provided with a wire clamping groove, one end of the wire winding channel is communicated with the wire clamping groove, and the other end of the wire winding channel is arranged at the bottom of the wire winding part. To appear warping or cracked problem easily in its corner of current bolt type strain clamp because of long-term atress, the utility model discloses a set up the winding channel that sets up in the wire winding portion and realize the multistage wire winding, disperse the atress of winding portion through the winding channel, avoid power to concentrate on the corner that wire winding portion and card line portion are connected and cause the corner to appear warping or cracked problem.

Description

Bolt type strain clamp capable of dispersing stress

Technical Field

The utility model relates to a cable presss from both sides line accessory field, concretely relates to bolt type strain clamp of dispersible atress.

Background

The strain clamp is mainly used for fixing aluminum stranded wires and steel-cored aluminum stranded wires on strain towers of overhead lines and substations. The strain clamp is used for corner connection, connection and terminal connection. The spiral aluminum clad steel wire has extremely strong strain strength, and the strain clamp can play a role in protecting and assisting in damping the optical cable. The whole set of optical cable strain insulator accessory includes: the tension-resistant preformed armor rods are connected with hardware fittings in a matched mode. The grip strength of the strain clamp is not less than 95% of the rated tensile strength of the optical cable, and the strain clamp is convenient and quick to install and can reduce the construction cost. The strain clamp can be roughly divided into two types according to the specific use condition of the strain clamp, and the first type strain clamp needs to bear the whole tensile force of a cable or a lightning conductor but does not serve as a conductor, so the strain clamp can be detached for use after the cable is installed; the second type of strain clamp needs to be used as an electrical conductor in addition to bearing all the tensile force of the cable or the lightning conductor, so that the cable cannot be detached for use after being installed. The situation of deformation or fracture easily occurs to the corner of the bolt type strain clamp which is not detached after the cable is installed due to the effect of large force for a long time, so that the normal work of the cable is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bolt type strain clamp of dispersible atress solves its corner of bolt type strain clamp because of long-term atress and appears warping or cracked problem easily.

The utility model discloses a following technical scheme realizes:

a bolt type strain clamp capable of dispersing stress comprises a winding portion and a wire clamping portion, wherein one end of the winding portion is connected with one end of the wire clamping portion and used for changing the trend of a cable;

a winding channel for dispersing the stress of the winding part is arranged in the winding part;

the wire clamping part is provided with a wire clamping groove, one end of the wire winding channel is communicated with the wire clamping groove, and the other end of the wire winding channel is arranged at the bottom of the wire winding part. To appear warping or cracked problem easily in its corner of current bolt type strain clamp because of long-term atress, the utility model discloses a set up the winding channel that sets up in the wire winding portion and realize the multistage wire winding, disperse the atress of winding portion through the winding channel, avoid power to concentrate on the corner that wire winding portion and card line portion are connected and cause the corner to appear warping or cracked problem.

The further technical scheme is as follows:

the winding channel comprises a plurality of winding sections connected end to end, and the joints of the winding sections are all connection structures adapting to the shape and the trend of the cable.

Further: the winding channel comprises a first winding segment, a second winding segment, a third winding segment and a fourth winding segment which are connected in sequence;

further: the other end of the first winding segment is arranged at the bottom of the winding part;

further: the other end of the fourth winding segment is communicated with the wire clamping groove.

Further: and the joint of the first winding segment and the second winding segment, the joint of the second winding segment and the third winding segment, the joint of the third winding segment and the fourth winding segment, and the joint of the fourth winding segment and the wire clamping groove are connected by arc-shaped connecting segments.

Further: the cable at the junction of the first and second coil segments, the junction of the second and third coil segments, and the junction of the third and fourth coil segments is exposed outside the winding portion.

Further: when the strain clamp is vertically placed, the trends of the first winding segment, the second winding segment, the third winding segment and the fourth winding segment are gradually close to the horizontal height of the wire clamping groove.

Further: the first winding section is arranged at one end of the bottom of the winding part, the aperture of the first winding section is gradually changed, and the aperture close to the bottom of the winding part is larger than the aperture far away from the bottom of the winding part. The aperture of the opening end of the first winding section for the cable to enter is large, the change range of cable guiding is further enlarged, and meanwhile, the abrasion of the cable caused by the action of external factors such as wind, rain and the like is prevented.

Further: the cable fixing device is characterized in that the wire clamping part is provided with a plurality of clamping pieces for fixing cables, and a abdicating groove is formed at the matching part of the clamping pieces and the wire clamping part;

further: the screw rod section of joint spare runs through card line portion and fix the cable with the bolt cooperation.

Further: the wire clamping groove is obliquely and obliquely arranged at the joint of the wire clamping groove and the fourth winding section. The slope of card wire casing sets up can effectually in time discharge the ponding in the card wire casing, avoids its inside ponding that exists to cause the cable to rust the condition that influences normal use.

Further: still including the installation department that is used for strain clamp external fixation.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model relates to a bolt type strain clamp capable of dispersing stress, which realizes multi-section winding by arranging a winding channel in a winding part, disperses the stress of the winding part through the winding channel, and avoids the problem that the stress is concentrated at the corner connected with the winding part and the wire clamping part to cause deformation or fracture at the corner;

2. the utility model relates to a bolt type strain clamp of dispersible atress, the aperture that first wire winding section is used for the open end that the cable got into is big, and the increase that can step forward causes the wearing and tearing of cable when preventing simultaneously that the cable from beating because of wind and rain to the change scope of cable direction.

3. The utility model relates to a bolt type strain clamp of dispersible atress, the slope setting of card wire casing can be effectual in time discharge the ponding of card wire casing, avoids its inside ponding that exists and causes the cable to rust the condition that influences normal use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is a partial schematic view of the winding portion of the present invention.

Reference numbers and corresponding part names in the drawings:

the winding device comprises a winding part 1, a winding clamping part 2, a winding channel 3, a wire clamping groove 4, an installation part 5, a clamping part 21, a relief groove 22, a first winding segment 31, a second winding segment 32, a third winding segment 33, a fourth winding segment 34 and an arc-shaped connecting segment 35.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", "first, second", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention. Examples

As shown in fig. 1 to 3, the bolt type strain clamp capable of dispersing stress of the present invention includes a wire winding portion 1 and a wire clamping portion 2, wherein one end of the wire winding portion 1 is connected to one end of the wire clamping portion 2 for changing the direction of a cable; in this embodiment the contained angle design of wire winding portion 1 and card line portion 2 is the obtuse angle, compares in acute angle structure this embodiment with the design of corner for the obtuse angle, and it does not contain the power that can make wire winding portion 1 and card line portion 2 take place to buckle to the effect of corner's power has guaranteed the effective normal use of corner.

A winding channel 3 for dispersing the stress of the winding part 1 is arranged in the winding part 1; in the embodiment, the winding channel arranged in the winding part is arranged to realize multi-section winding, and the stress of the winding part is dispersed through the winding channel, so that the problem that the stress is concentrated at the corner connected with the winding part and the wire clamping part to cause deformation or fracture at the corner is avoided;

the wire clamping part 2 is provided with a wire clamping groove 4, one end of the wire winding channel 3 is communicated with the wire clamping groove 4, and the other end of the wire winding channel 3 is arranged at the bottom of the wire winding part 1. In the embodiment, the cable can be wound in multiple sections in the winding part 1 through the winding channel 3 and then enters the wire clamping groove 4 to fix the cable, the stress of the winding part 1 can be dispersed to each section of the winding channel through the mode of multi-section winding, so that the problem that the stress is concentrated at the corner to cause the deformation or cracking of the corner due to overlarge stress can be avoided, and the long-term stable normal use of the strain clamp is ensured.

The winding channel 3 comprises a plurality of sections of winding sections connected end to end, and the joints of the winding sections are all connection structures adapting to the shapes and the trends of cables. For reducing the cable and appearing the condition of damage at the junction because of the atress at the wire winding in-process, set up the connection structure who adapts to the cable shape and trend in this embodiment through setting up in the junction and avoid the problem that the atress of cable at the junction is concentrated, avoid the junction cable can not be because of the too big unable normal use's of atress problem.

The winding channel 3 comprises a first winding segment 31, a second winding segment 32, a third winding segment 33 and a fourth winding segment 34 which are connected in sequence; the other end of the first winding segment 31 is arranged at the bottom of the winding part 1; the other end of the fourth winding segment 34 is communicated with the wire clamping groove 4. In the embodiment, the cable can finally enter the line-of-sight cable fixing device of the wire clamping groove 4 through the first winding segment 31, the second winding segment 32, the third winding segment 33 and the fourth winding segment 34 which are sequentially connected, and the stress of the winding part 1 can be dispersed to the winding channels 3 in multiple sections through the winding mode, so that the condition that the stress is concentrated at the corners to cause deformation or fracture at the corners is effectively avoided.

The connection position of the first winding segment 31 and the second winding segment 32, the connection position of the second winding segment 32 and the third winding segment 33, the connection position of the third winding segment 33 and the fourth winding segment 34, and the connection position of the fourth winding segment 34 and the wire clamping groove 4 are connected by adopting an arc-shaped connecting segment 35. The connection structure of preferred junction is the arc structure in this embodiment, and wherein arc linkage segment 35 can be effectual will be connected both ends around, and arc structure of arc linkage segment 35 can effectual reduction structure to the harm of cable simultaneously, and the effectual normal use of cable that has guaranteed simultaneously to reduce the probability that the cable received the damage.

The cables at the junction of the first winding segment 31 and the second winding segment 32, the junction of the second winding segment 32 and the third winding segment 33, and the junction of the third winding segment 33 and the fourth winding segment 34 are exposed outside the winding part 1. In this embodiment the cable of junction exposes outward promptly the cable does not all can stretch out winding part 1 after the wire winding section of one end, then gets into next wire winding section through the opening of next wire winding section on winding part 1, and this kind of mode can reduce the wire winding degree of difficulty, guarantees the normal use of strain clamp in this embodiment.

When the strain clamp is vertically placed, the first winding segment 31, the second winding segment 32, the third winding segment 33 and the fourth winding segment 34 are gradually close to the horizontal height of the wire clamping groove 4. The cable finally has to enter the wire clamping groove 4 to be fixed after passing through the wire winding channel 3, so as to realize the wire clamping function of the strain clamp, and therefore, in this embodiment, the first wire winding section 31, the second wire winding section 32, the third wire winding section 33 and the fourth wire winding section 34 should be set on the premise that the cable can be finally clamped in the wire clamping groove 4.

The first winding segment 31 is disposed at one end of the bottom of the winding portion 1, and the aperture of the first winding segment is gradually changed, and the aperture of the first winding segment near the bottom of the winding portion 1 is larger than the aperture of the first winding segment far from the bottom of the winding portion 1. In order to further increase the change range of the tension clamp to the cable guide, in this embodiment, the end of the first winding segment 31 for the cable to enter the winding portion 1 is designed to be close to the structural form that the aperture of the bottom of the winding portion 1 is larger than the aperture of the flared hole far away from the bottom of the winding portion 1, and this structural form can realize the deviation of the cable within a certain range, so that the change range of the cable is further increased, and the cable is prevented from being worn due to the external factors such as wind, rain and the like.

The clamping line part 2 is provided with a plurality of clamping pieces 21 for fixing cables, and the matching part of the clamping pieces 21 and the clamping line part 2 is provided with a abdicating groove 22; for guaranteeing the joint effect that joint spare 21 can be directed against different specification cables, let realize the joint of joint spare 21 to small dimension cable for groove 22 structure through setting up in this embodiment.

The screw section of joint spare 21 runs through card line portion 2 and fixes the cable with the bolt cooperation. The stable clamping effect of the clamping piece 21 on the cable is realized in the present example through the form of bolt fit.

The wire clamping groove 4 is obliquely and obliquely arranged at the joint of the wire clamping groove and the fourth winding wire section 34. The deposit of rainwater easily forms in the 4 interior contents of joint groove in daily use for the cable appears rustting scheduling problem and then influences the normal use of cable, so through the 4 structures of card wire casing that above-mentioned slope set up in this embodiment, can reduce the influence of rainwater deposit to cable normal use with the effectual discharge of ponding in the card wire casing 4.

The tension-resistant wire clamp further comprises an installation part 5 for fixing the tension-resistant wire clamp outside. Need be fixed in strain insulator shaft tower etc. external structure with it in the use of strain insulator clamp, the event needs to set up the installation department and realizes this purpose. In this embodiment, the mounting portion 5 is connected to the outside of the strain clamp by means of bolts or pins.

According to the same bolt type strain clamp main body, the name is submitted on the same day: the utility model relates to a bolt type strain clamp capable of preventing water accumulation, which comprises a clamping line section, a waterproof cover plate and a winding section, wherein one end of the clamping line section is connected with one end of the winding section; the winding section is provided with a wire slot, the wire clamping section is provided with a wire clamping slot, and one end of the wire slot is connected with one end of the wire clamping slot and used for changing the direction of a cable; the waterproof cover plate is used for preventing the wire clamping groove from being water and buckled on the wire clamping section, and the waterproof cover plate completely covers the wire clamping groove. The utility model discloses a cable clamp section of strain clamp, including the cable clamp section, the cable clamp section of strain clamp is equipped with the card wire casing, and the cable is equipped with the card wire casing, and the card wire casing is equipped with the card wire casing.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The bolt type strain clamp capable of dispersing stress is characterized by comprising a winding part (1) and a wire clamping part (2), wherein one end of the winding part (1) is connected with one end of the wire clamping part (2) and is used for changing the trend of a cable;

a winding channel (3) for dispersing stress of the winding part (1) is arranged in the winding part (1);

the wire clamping part (2) is provided with a wire clamping groove (4), one end of the wire winding channel (3) is communicated with the wire clamping groove (4), and the other end of the wire winding channel (3) is arranged at the bottom of the wire winding part (1).

2. The dispersible bolt type strain clamp according to claim 1, wherein the winding channel (3) comprises a plurality of winding sections connected end to end, and the joints of the winding sections are all connection structures adapting to the shape and the trend of a cable.

3. A dispersible stress bolt type strain clamp according to claim 1, wherein said winding channel (3) comprises a first winding section (31), a second winding section (32), a third winding section (33) and a fourth winding section (34) connected in sequence;

the other end of the first winding segment (31) is arranged at the bottom of the winding part (1);

the other end of the fourth winding wire section (34) is communicated with the wire clamping groove (4).

4. A stress-dispersible strain clamp of bolt type according to claim 3, wherein the junction of the first winding section (31) and the second winding section (32), the junction of the second winding section (32) and the third winding section (33), the junction of the third winding section (33) and the fourth winding section (34), and the junction of the fourth winding section (34) and the clamping groove (4) are connected by arc-shaped connecting sections (35).

5. A stress-dispersible strain clamp of the bolt type according to claim 3, wherein the cable at the junction of the first and second coil sections (31, 32), the junction of the second and third coil sections (32, 33), and the junction of the third and fourth coil sections (33, 34) is exposed outside the coil (1).

6. A dispersible stressed bolt type strain clamp according to claim 3, wherein when the strain clamp is placed vertically, the first, second, third and fourth winding sections (31, 32, 33, 34) are all gradually close to the level of the clamping groove (4).

7. A dispersible stressed bolt-type strain clamp according to claim 3, wherein the first winding section (31) is disposed at one end of the bottom of the winding portion (1) and has a gradually changing aperture, and the aperture near the bottom of the winding portion (1) is larger than the aperture far from the bottom of the winding portion (1).

8. The bolt type strain clamp capable of dispersing stress according to claim 1, wherein the clamping line part (2) is provided with a plurality of clamping pieces (21) for fixing a cable, and a relief groove (22) is formed at the matching part of the clamping pieces (21) and the clamping line part (2);

the screw section of joint spare (21) runs through card line portion (2) and fix the cable with the bolt cooperation.

9. A dispersible tension clamp of bolt type according to claim 3, wherein the clamping groove (4) is inclined obliquely upward from its connection with the fourth winding section (34).

10. The dispersible bolt type strain clamp of claim 1, further comprising a mounting portion (5) for external fixation of the strain clamp.