Cable trench external corner fixing and protecting device and method
阅读说明：本技术 一种电缆沟阳角固定防护装置及方法 (Cable trench external corner fixing and protecting device and method ) 是由 冯棋 杨军永 张波 亓建英 郭彩云 边芙蓉 张岩 纪永芹 亓淑华 施鑫 吴振 于 2019-10-13 设计创作，主要内容包括：本发明提供了一种电缆沟阳角固定防护装置及方法,涉及输电线路电缆施工领域,包括外壳、横向滑轮和纵向滑轮,所述外壳为两端开孔的中空结构,所述外壳外侧设置有与电缆沟阳角结构配合的卡槽,所述横向滑轮和纵向滑轮安装在外壳内侧,所述纵向滑轮安装在横向滑轮上方,所述纵向滑轮和横向滑轮分别与电缆滚动接触。使用时,先将卡槽与电缆沟阳角位置匹配；再将外壳与阳角固定；然后将电缆从外壳中穿过,使电缆与纵向滑轮和横向滑轮滚动接触。使用该种装置和方法能够兼顾对电缆的防护和固定两个方面,解决了电缆在电缆沟转角处敷设的问题,能够有效避免电缆在阳角处受损。(The invention provides a cable trench external corner fixing and protecting device and a cable trench external corner fixing and protecting method, which relate to the field of power transmission line cable construction and comprise a shell, a transverse pulley and a longitudinal pulley, wherein the shell is of a hollow structure with holes at two ends, a clamping groove matched with the cable trench external corner structure is arranged on the outer side of the shell, the transverse pulley and the longitudinal pulley are installed on the inner side of the shell, the longitudinal pulley is installed above the transverse pulley, and the longitudinal pulley and the transverse pulley are respectively in rolling contact with a cable. When in use, the clamping groove is matched with the position of the external corner of the cable trench; then the shell is fixed with the external corner; the cable is then passed through the housing so that the cable is in rolling contact with the longitudinal and transverse pulleys. The device and the method can protect and fix the cable, solve the problem that the cable is laid at the corner of the cable duct, and effectively avoid the cable from being damaged at the external corner.)
1. The utility model provides a protector is fixed at cable pit external corner which characterized in that: including shell (1), horizontal pulley (2) and vertical pulley (3), shell (1) is the hollow structure of both ends trompil, shell (1) outside be provided with cable pit external corner structure complex draw-in groove (11), install in shell (1) inboardly horizontal pulley (2) and vertical pulley (3), install in horizontal pulley (2) top vertical pulley (3), vertical pulley (3) and horizontal pulley (2) respectively with cable rolling contact.
2. The cable trench external corner fixing and protecting device of claim 1, wherein: the transverse pulley (2) is provided with one, the longitudinal pulleys (3) are provided with two, and the transverse pulley (2) is arranged in the middle position below the two longitudinal pulleys (3).
3. The cable trench external corner fixing and protecting device of claim 2, wherein: and the contact surfaces of the longitudinal pulleys (3) and the transverse pulleys (2) and the cable form a cable rolling groove.
4. The cable trench external corner fixing and protecting device of any one of claims 1 to 3, wherein: an opening is formed in one side face of the shell (1), and a fixing buckle (4) is arranged on the opening.
5. The cable trench external corner fixing and protecting device of claim 4, wherein: the clamping groove (11) of the fixed buckle (4) inclines towards the inner side of the shell (1).
6. The cable trench external corner fixing and protecting device of claim 5, wherein: the fixing buckle (4) is of an elastic metal structure.
7. The cable trench external corner fixing and protecting device of claim 5, wherein: the fixed buckle (4) is not positioned on the surface of the clamping groove (11).
8. The cable trench external corner securing guard of claim 7, wherein: the fixed buckle (4) is positioned on the opposite surface of the surface where the clamping groove (11) is positioned.
9. A cable trench external corner fixing and protecting method using the cable trench external corner fixing and protecting device according to any one of claims 1 to 8, the method mainly comprising the steps of:
matching the clamping groove (11) with the position of the external corner of the cable trench;
fixing the shell (1) with the external corner;
the cable is passed through the housing (1) so that the cable is in rolling contact with the longitudinal pulleys (3) and the transverse pulleys (2).
10. The method for fixing and protecting the external corner of the cable trench according to claim 9, wherein: the cable is located in the cable roller slot.
Technical Field
The invention relates to a protection and fixing device and a protection and fixing method used in the construction of a power transmission line cable, in particular to a cable trench external corner turning and supporting integrated fixing device which is mainly applied to the laying of a power cable at a turning position in a cable trench, prevents the cable from being worn and ensures the normal use of a cable line.
Background
When power cable laid in the cable trench at the turning position, the power cable is often placed on the ground or on the support frame, the cable is dragged to lay, so that the cable is abraded at the external corner, the insulation performance of the power cable is influenced seriously, discharging is caused, and potential safety hazards exist easily. Although abrasion of cables is reduced to a certain extent by an external corner pulley, a pulley and the like of a cable trench at present, the cable trench has a common use effect and cannot simultaneously achieve multiple functions of protection, fixation and the like.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a cable trench external corner fixing and protecting device and method, so as to solve the above-mentioned technical problems.
In a first aspect, the invention provides a cable trench external corner fixing and protecting device which comprises a shell, a transverse pulley and a longitudinal pulley, wherein the shell is of a hollow structure with holes at two ends, a clamping groove matched with the cable trench external corner structure is formed in the outer side of the shell, the transverse pulley and the longitudinal pulley are installed on the inner side of the shell, the longitudinal pulley is installed above the transverse pulley, and the longitudinal pulley and the transverse pulley are respectively in rolling contact with a cable.
Further, in order to guarantee effective direction and protection to the cable, the horizontal pulley is provided with one, vertical pulley is provided with two, horizontal pulley sets up the intermediate position in two vertical pulley below.
Further, in order to enable the longitudinal pulleys and the transverse pulleys to be matched with the cable structure, the contact surfaces of the longitudinal pulleys and the transverse pulleys and the cable form cable rolling grooves.
Furthermore, in order to install the cable, an opening is formed in one side face of the shell, a fixing buckle is arranged on the opening, and the cable enters the shell from a clamping groove of the fixing buckle.
Furthermore, in order to prevent the cable from falling off, the clamping groove of the fixing buckle inclines towards the inner side of the shell.
Further, in order to prevent the fixed buckle from causing structural damage to the cable, the fixed buckle is of an elastic metal structure.
Furthermore, in order to facilitate the operation, the fixing buckle is not positioned on the surface where the clamping groove is positioned. Preferably, the fixing buckle is located on the opposite side of the surface where the clamping groove is located, so that the cable is convenient to mount.
The device has the advantages that: according to the cable trench external corner fixing and protecting device provided by the invention, the external corner is coated by the shell, and the friction coefficient of the cable at the external corner position is reduced by the longitudinal pulley and the transverse pulley, so that the cable can stably pass through the external corner without damaging the cable, the phenomenon of electric leakage of the cable at the external corner position of the cable trench due to abrasion is avoided, no electric corrosion is caused, the generation of eddy current can be prevented, and the device can be used in moist or water for a long time, can adapt to various climates and use environments, and is long in service life.
The invention has reliable design principle, simple structure and very wide application prospect.
In a second aspect, the present invention provides a cable trench external corner fixing and protecting method, which uses any one of the cable trench external corner fixing and protecting devices described above, and mainly includes the following steps: matching the positions of the clamping groove and the external corner of the cable trench;
fixing the shell with the external corner;
the cable is passed through the housing such that the cable is in rolling contact with the longitudinal and transverse pulleys.
Further, in order to ensure the normal transportation of the cable, the cable is positioned in the cable rolling groove.
The method has the advantages that the method can give consideration to both the protection and the fixation of the cable, solves the problem that the cable is laid at the corner of the cable trench, and can effectively avoid the cable from being damaged at the external corner.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic side view of the cable trench external corner fixing and protecting device of the present invention.
Fig. 2 is a schematic front view of the cable trench external corner fixing and protecting device of the invention.
Fig. 3 is a schematic top view of the cable trench external corner fixing and protecting device of the present invention.
In the figure, the device comprises a
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, a protector is fixed to cable pit external corner, including
In order to make the
Further, in order to facilitate installation of the cable and prevent the cable from falling off, an opening is formed in one side face of the
In order to prevent the
For the convenience of operation, the
The device has the advantages that: according to the cable trench external corner fixing and protecting device provided by the invention, the external corner is coated by the
The using method of the device mainly comprises the following steps:
1) matching the clamping groove 11 with the position of the external corner of the cable trench;
2) fixing the
3) the cable is passed through the
Further, in order to ensure the normal transportation of the cable, the cable is positioned in the cable rolling groove.
The method has the advantages that the method can give consideration to both the protection and the fixation of the cable, solves the problem that the cable is laid at the corner of the cable trench, and can effectively avoid the cable from being damaged at the external corner.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
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