Novel alloy moment coated wire fixing clamp
Through the new alloy torque-covered wire fixing clamp, the problems of easy breakage of wire fixing clamps in the prior art, inconvenient operation at high altitudes and damage to the insulation layer are solved, and more stable mechanical connections and safer high altitude operations are achieved.
Patent Information
- Application Number
- CN202421612152.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing wire fixing wire is easily broken under environmental conditions such as ice covering and wind pendulum, and is inconvenient to operate at high altitude, which can easily damage the wire insulation layer and lead to safety accidents.
A new alloy torque-covered wire fixing clamp is adopted, including an aluminum alloy wire clamp body and wire clamp, which is fixed to the neck of the insulator through a locking member, and a flexible protective layer is provided at the contact point between the wire clamp body and the insulator to ensure the stable connection between the wire and the wire clamp.
It improves the mechanical connection stability of wire fixing clamps, prevents wire and insulator damage, simplifies the installation process of high-altitude operations, and enhances the safety of use under various environmental conditions.
Smart Images
Figure CN222887925U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power connection fittings, in particular to a novel alloy torque-coated wire fixing clamp. Background Art
[0002] A wire fixing clamp is a device for fixing wires or cables, which is generally applicable to distribution overhead lines of 10 kV and below, and is used to fix wires in cooperation with pin-type or line-post porcelain insulators. At present, most wire fixing clamps are formed by casting with ZL102 aluminum alloy, plastic injection molding, or extrusion molding with aluminum-clad steel stranded wire or galvanized steel stranded wire.
[0003] Among them, for the fixing clamp formed by casting with ZL102 aluminum alloy, the strength of the clamp is low, and it is easy to break under environmental conditions such as icing and wind swing during actual operation of the product, resulting in safety accidents such as wire dropping. At the same time, its fastening method is to directly tap threads on the clamp. Due to the low strength of the clamp, it is extremely easy to fail due to thermal expansion and contraction during operation. For the fixing clamp formed by plastic injection molding, since the clamp is exposed to light and rain for a long time, it is easy to age, and it is easy to break under environmental conditions such as icing and wind swing during actual operation of the product, resulting in safety accidents such as wire dropping. For the fixing clamp formed by extrusion molding with aluminum-clad steel stranded wire or galvanized steel stranded wire, it is extremely inconvenient to operate at high altitude, and at the same time, it is easy to damage the wire insulation layer, which will cause safety accidents.
[0004] To avoid the problems that the above-mentioned clamps are easy to break under environmental conditions such as icing and wind swing and the wire insulation layer is easy to be damaged during use, it is necessary to develop a new wire fixing clamp. Content of the Utility Model
[0005] The utility model aims to provide a novel alloy torque-coated wire fixing clamp to solve the problems that the current fixing clamps are easy to break, inconvenient to operate at high altitude, and the wire insulation layer is easy to be damaged.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a novel alloy torque-coated wire fixing clamp, which includes a wire clamp body made of aluminum alloy and a wire clamp arranged on the wire clamp body. The wire clamp body is in the shape of a hoop and is fixed to the neck of the insulator through a first locking member. A flexible protective layer is fixed on the surface of the wire clamp body in contact with the insulator. The wire clamp includes a base and a gland, and the wire is connected and fixed to the wire clamp body through a second locking member.
[0007] The principle of this scheme: First, the wire clamp body is fixed to the neck of the insulator through the first locking member. The wire clamp body is in close contact with the neck of the insulator through the flexible protective layer. Then, the wire is connected and fixed to the wire clamp body through the wire clamp and the second locking member.
[0008] Preferably, the first locking member is a first bolt and a first torque nut disposed on both sides of the clamp body. The torque nut and the bolt facilitate installation and control of the tightness of the locking member.
[0009] Preferably, a first card slot for fixing the head of the first bolt is provided on the clamp body. This ensures that the bolt head does not rotate when tightening the torque nut. During installation, only a tool is needed to tighten the torque nut, reducing labor intensity, especially in high-altitude operations where it is simple and convenient to operate.
[0010] Preferably, a flexible refractory layer for protecting the wire is provided between the base and the gland. The flexible refractory layer minimizes wire damage.
[0011] Preferably, the flexible refractory layer is respectively clamped or adhered to the base and the gland.
[0012] Preferably, two bases are provided and symmetrically arranged at both ends of the clamp body.
[0013] Preferably, a positioning groove is provided on the clamp body, and the base is fixed to the clamp body through a second locking member. The base is positioned through the positioning groove so that when the wire clamp clamps the wire, the wire can pass through the central axis of the clamp body and be located in the groove on the top surface of the insulator neck.
[0014] Preferably, the second locking member includes a second torque nut, a second bolt, and a second nut. The second bolt sequentially passes through the clamp body, the base, the second nut, and the gland and is connected to the second torque nut.
[0015] Preferably, a second card slot for installing the head of the second bolt is provided on the contact surface between the clamp body and the head of the second bolt. This ensures that the bolt head does not rotate when tightening the torque nut. During installation, only a tool is needed to tighten the torque nut, reducing labor intensity, especially in high-altitude operations where it is simple and convenient to operate.
[0016] Preferably, a disc spring washer is provided between the outer surfaces of the second torque nut and the gland.
[0017] Advantages of this solution:
[0018] 1. Stable mechanical connection: The clamp structure is carefully designed, made of high-strength aluminum alloy profiles, and equipped with high-performance bolts and torque nuts. The fastening force is stable and evenly distributed, thus ensuring the continuous stability of the mechanical connection under various operating conditions.
[0019] 2. Prevent damage: The wire groove of the clamp and the contact area with the porcelain insulator are coated with silicone rubber, which can minimize damage to the wire and the porcelain insulator.
[0020] 3. Convenient installation: Using conventional tools, the process is simple. Just break the torque nut to complete the installation. Brief Description of the Figures
[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model.
[0022] Figure 2 This is a front view schematic diagram of an embodiment of the utility model.
[0023] Figure 3 This is a top view of an embodiment of the utility model. Specific implementation method
[0024] The following is a detailed description of the specific implementation method:
[0025] The reference numerals in the drawings of the specification include: wire clamp body 1, first slot 11, second slot 12, base 2, gland 3, second torque nut 4, second bolt 5, disc spring coil 6, insulator slot 7, wire slot 8, first torque nut 9, first bolt 10, second nut 13.
[0026] Example:
[0027] A new alloy moment-coated wire fixing clamp, as shown in the attached Figure 1 、Attachment Figure 2 and attached Figure 3 As shown, it includes a wire clamp body 1 and a wire clamp arranged thereon.
[0028] The wire clamp body 1 is in the shape of a hoop and is fixed to the neck of the insulator by a first locking member. An insulator slot 7 for accommodating the neck of the insulator is provided in the middle of the hoop-shaped wire clamp body 1. In this embodiment, the wire clamp body 1 is composed of two identical components, which is convenient for processing and manufacturing using the same mold. The opposite surfaces of the components are provided with wire clamp arc grooves, and the wire clamp arc grooves on the opposite surfaces form the insulator slot 7. The top of the insulator neck is provided with an arc groove for accommodating the wire. The wire clamp is used with a pin-type or line column porcelain insulator to fix the wire. It is superior to other similar wire clamps on the market and is an upgraded product of traditional fixed wire clamps and windproof wire clamps.
[0029] Wherein, a flexible protective layer is provided on the arc-shaped groove of the wire clamp to avoid damage to the porcelain insulator as much as possible. In this embodiment, the flexible protective layer is a silicone rubber layer. Figure 1 As shown, the cross section of the silicone rubber layer is U-shaped and faces the arc groove of the wire clamp. The upper and lower ends of the silicone rubber layer are respectively located on the outer sides of the upper and lower ends of the arc groove of the wire clamp. The upper and lower end surfaces of the arc groove of the wire clamp are both provided with a first groove, and the upper and lower opposite surfaces of the silicone rubber layer are both provided with a second groove. The first groove and the second groove cooperate with each other so that the arc groove of the wire clamp and the silicone rubber layer are mutually engaged and connected together, which is convenient for installing and fixing the silicone rubber layer on the arc groove of the wire clamp, and the connection between the two is more stable.
[0030] The first through hole connected to the first locking member is provided on the opposite surfaces of the two components constituting the wire clamp body 1. The first locking member includes a first torque nut 9 and a first bolt 10. The head of the first bolt 10 is located outside the wire clamp body 1. The rod of the first bolt 10 passes through the first through hole at the corresponding position of the components in sequence and is connected to the first torque nut 9. The torque nut and the bolt are convenient for installation and control of the tightness of the locking member. Among them, the first torque nut 9 is a hexagonal nut, and the first bolt 10 is a hexagonal bolt.
[0031] The first through holes are symmetrically arranged at both ends of the component, and the first through holes symmetrically arranged on a single component are used to install the first torque nut 9 and the head of the first bolt 10 respectively. By using a nut on each wire clamp body 1, a stronger connection can be ensured between the two objects, which can reduce the possibility of loosening of the bolt due to vibration or other external forces; using two sets of nuts can also provide a more uniform pressure distribution, thereby reducing the stress concentration of the bolt around the connection point and extending the service life of the connection.
[0032] The contact surface between the wire clamp body 1 and the head of the first bolt 10 is provided with a first slot 11 for installing the head of the first bolt 10. It is ensured that the bolt head will not rotate when tightening the torque nut. During installation, only the torque nut needs to be tightened with a tool, which reduces labor intensity and is easy to operate, especially during high-altitude operations. The first slot 11 can be formed by extrusion or by milling.
[0033] The wire clamp includes a base 2 and a gland 3. The wire is connected and fixed to the wire clamp body by a second locking member. Two bases 2 are provided, symmetrically arranged at both ends of the wire clamp body 1. A wire groove 8 for accommodating the wire is formed between the base 2 and the gland 3. The wire groove 8 is used to clamp the wire. Specifically, the gland 3 is provided with a gland arc groove on the opposite side of the base 2, and the base 2 is provided with a base arc groove on the opposite side of the gland 3. The gland arc groove and the base arc groove form the wire groove 8. By clamping the wire through the arc groove, the contact area between the wire and the wire clamp can be increased; at the same time, the arc groove fits the wire more closely, avoiding damage to the wire when crimping the wire.
[0034] The base 2 is fixed to the wire clamp body 1 through a second locking member. The wire clamp body 1 is provided with a positioning groove, which is used for positioning and installing the base 2 so that when the wire clamp clamps the wire, the wire can pass through the central axis of the wire clamp body 1 and be located in the groove on the top surface of the insulator neck.
[0035] Flexible fire-resistant layers are provided on both the arc groove of the gland and the arc groove of the base, and the flexible fire-resistant layers are respectively clamped or bonded to the base 2 and the gland 3. Specifically, clamping grooves or grooves are provided on the arc groove of the gland and the arc groove of the base for clamping and bonding. In this embodiment, the flexible fire-resistant layer is a silicone rubber layer. The flexible fire-resistant layer is provided to avoid wire damage as much as possible.
[0036] The gland 3, the base 2 and the wire clamp body 1 are all provided with second through holes connected to the second locking member. The second locking member sequentially passes through the second through holes on the gland 3, the base 2 and the wire clamp body 1. The second locking member includes a second torque nut 4, a second bolt 5 and a second nut 13. The head of the second bolt 5 is located outside the wire clamp body 1. The rod portion of the second bolt 5 sequentially passes through the second through holes on the wire clamp body 1, the base 2, the second nut 13 and the gland 3 and is connected to the second torque nut 4. During use, the rod portion of the second bolt 5 sequentially passes through the wire clamp body 1, the base 2 and the second nut 13, and the second nut 13 is rotated to fix the wire clamp body 1 and the base 2 together. Then, the insulated wire is placed above the base 2, and then the gland 3 is covered. Then, the second torque nut 4 is fixed to the rod portion of the second bolt 5, and the distance between the base 2 and the gland 3 is adjusted, so as to control the volume of the wire groove 8, fix the wire on the wire clamp body 1, and the volume of the wire groove 8 can be quickly controlled by controlling the torque nut, and further the clamping of the wire can be controlled. Wherein, the second torque nut 4 is a hexagonal nut, the second bolt 5 is a hexagonal bolt, the second nut 13 is a hexagonal nut, and a standard spring washer is provided between the second nut 13 and the base 2.
[0037] A second clamping groove 12 for installing the head of the second bolt 5 is provided on the contact surface between the wire clamp body 1 and the head of the second bolt 5. It is ensured that the bolt head will not rotate when the torque nut is tightened. During installation, only a tool is needed to lock the torque nut, reducing the labor intensity, especially being simple and convenient to operate during high-altitude operations. Wherein, the second clamping groove 12 can be formed by extrusion or processed by a milling cutter.
[0038] A disc spring washer 6 is provided between the outer surfaces of the second torque nut 4 and the gland 3. The combination design of the torque nut and the disc spring washer 6 ensures a constant tightening torque, that is, it avoids the situation where the wire is not tightly pressed, effectively overcomes the stress relaxation generated by the thermal expansion and contraction of the wire during operation, dynamically compensates for the decrease in the initial torque value, and maintains a stable connection pressure.
[0039] In this embodiment, the gland 3, the base 2 and the wire clamp body 1 can be cut from high-strength and high-conductivity aluminum alloy material profiles and then formed by machining, greatly reducing the processing procedures.
[0040] This solution uses conventional tools, with a simple process. The torque nut can be broken off to complete the installation, which is simple and convenient for high-altitude operations. The wire groove 8 of the clamp and the contact with the porcelain insulator are coated with silicone rubber to minimize damage to the wire and porcelain insulator. It is made of high-strength aluminum alloy profiles, equipped with high-performance bolts and torque nuts, with stable fastening force and balanced distribution, thus ensuring the continuous stability of mechanical connection under various operating conditions. It is generally applicable to overhead distribution lines of 10 kV and below, and is used to fix the wire in cooperation with pin or line post porcelain insulators. It is superior to other similar clamps on the market and is an upgraded product of traditional fixed clamps and windproof clamps.
[0041] The above are only embodiments of the present utility model. Specific technical solutions and / or common knowledge such as characteristics that are well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present utility model, several deformations and improvements can be made. In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The scope of protection required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.
Claims
1. A new alloy moment-coated wire fixing clamp, characterized in that: The utility model comprises an aluminum alloy wire clamp body and a conductor clamp arranged on the wire clamp body. The wire clamp body is in the shape of a hoop and is fixed to the neck of the insulator through a first locking member. A flexible protective layer is fixed on the side of the wire clamp body that contacts the insulator. The wire clamp comprises a base and a pressure cover, and the wire is connected and fixed to the wire clamp body through a second locking member.
2. The new alloy moment-coated wire fixing clamp according to claim 1 is characterized in that: The first locking member is a first bolt and a first torque nut arranged on both sides of the wire clamp body.
3. The new alloy moment-coated wire fixing clamp according to claim 2 is characterized in that: The wire clamp body is provided with a first clamping groove for fixing the first bolt head.
4. The new alloy moment-coated wire fixing clamp according to claim 1 is characterized in that: A flexible fire-resistant layer for protecting the wires is arranged between the base and the gland.
5. The new alloy moment-coated wire fixing clamp according to claim 4 is characterized in that: The flexible fire-resistant layer is respectively clamped or bonded to the base and the pressure cover.
6. The new alloy moment-coated wire fixing clamp according to claim 1 is characterized in that: The base is provided with two, and is symmetrically arranged at two ends of the wire clamp body.
7. The novel alloy moment-coated wire fixing clamp according to claim 1 or 6 is characterized in that: The wire clamp body is provided with a positioning groove, and the base is fixed on the wire clamp body through a second locking member.
8. The new alloy moment-coated wire fixing clamp according to claim 7 is characterized in that: The second locking member includes a second torque nut, a second bolt and a second nut, and the second bolt passes through the wire clamp body, the base, the second nut and the pressure cover in sequence to be connected to the second torque nut.
9. The novel alloy moment-coated wire fixing clamp according to claim 8 is characterized in that: The contact surface between the wire clamp body and the second bolt head is provided with a second clamping groove for installing the second bolt head.
10. The new alloy moment-coated wire fixing clamp according to claim 8 is characterized in that: A disc spring washer is arranged between the second torque nut and the outer surface of the gland.