Strain clamp convenient to disassemble and assemble and clamping method

Abstract

The invention belongs to the field of strain clamps, and relates to a strain clamp convenient to disassemble and assemble and a clamping method, the strain clamp comprises a strain rod, the strain rod is sleeved with two second clamp bodies, at least one first clamp body is sleeved between the two second clamp bodies, and the first clamp bodies are detachably connected with the second clamp bodies; each of the first wire clamp body and the second wire clamp body comprises a supporting rod, a strain part is arranged at the front end of the upper part of each supporting rod, a plurality of symmetrically arranged connecting blocks are uniformly distributed on two sides of each strain part, a U-shaped rod is arranged above each connecting block, each connecting block is detachably connected with the corresponding U-shaped rod, and a clamping block and a conical edge are sequentially arranged on the lower end surface of the middle part of each U-shaped rod. Through detachable connection of the strain rod, the first wire clamp body, the second wire clamp body and the U-shaped rod, the first bolt, the first nut, the clamping block and the conical edge, and threaded connection of the lead screw and the solenoid, the problems that an existing strain clamp is slow in disassembly and assembly, low in wire stability and not suitable for wires with different intervals are solved.

Description

Technical Field

[0001] The invention relates to the field of tension wire clamps, and particularly discloses a tension wire clamp that is easy to assemble and disassemble and a clamping method. Background Art

[0002] Strain clamps are hardware used to secure conductors, withstand conductor tension, and secure them to tension strings or towers. They can be broadly divided into two categories based on their structure and installation conditions. Category 1: Strain clamps withstand the full tensile force of the conductor or lightning conductor, but do not serve as electrical conductors. To facilitate assembly and disassembly, they require fast, easy-to-install tension clamps. Among them, the "quickly installed strong tension clamp group" disclosed in the application number "CN202022061778.7" is also an increasingly mature technology. The tension clamp group can quickly install a strong tension clamp group, fix the device to a suitable position through a connecting plate, a connecting ring and a hinged seat, and then insert the wires and cables that need to be clamped from the right side of the C-clamp, the plug ring and the flexible plate, and at the same time pass the wires and cables that need to be clamped from the left end of the C-clamp, the plug ring and the flexible plate, and then the staff uses an electric screwdriver to use the mounting plate to drive the transmission column to rotate, and then use the worm, worm gear, screw, movable plate, sliding column, slide rail, plug ring, C-shaped The clamp, flexible plate and protective pad are used to clamp and fix the wires and cables, and after the clamping is completed, the device will continue to clamp the wires and cables stably through the self-locking of the worm gear and the stability of the screw. However, the tension clamp group has the following defects during use: 1) The tension clamp group can indeed facilitate clamping and fixing through the C-shaped clamp, clamp ring and flexible plate, but the fixing structure of the tension clamp for the wires and cables is relatively simple, resulting in the tension clamp's stabilizing effect on the wires and cables to be improved and its practicality is not strong; 2) The tension clamp group has a complex structure and is not convenient to adjust according to the different spacing between the wires and cables, which is time-consuming to disassemble and assemble. Therefore, there is an urgent need for a tension clamp that is easy to disassemble and assemble quickly, can be adjusted according to the spacing between the wires, and has high stability. Summary of the Invention

[0003] The purpose of the present invention is to provide a tension clamp and a clamping method that are easy to disassemble and assemble, thereby solving the problems of the existing tension clamps that are slow to disassemble and assemble, have low stability to the conductors, and are not suitable for conductors with different spacings.

[0004] The specific scheme of the present invention is as follows: A tension clamp that is easy to assemble and disassemble, comprising a tension rod, two second clamp bodies being sleeved on the tension rod, at least one first clamp body being sleeved between the two second clamp bodies, and the first clamp body being detachably connected to the second clamp body; The first wire clamp body and the second wire clamp body both include a support rod, screw tubes are provided at both ends of the upper part of the support rod of the first wire clamp body, a screw tube is provided at one end of the upper part of the support rod of the second wire clamp body close to the first wire clamp body, the screw tube and the upper part of the support rod are both mounted on the tension rod, a tension part is provided at the front end of the upper part of the support rod, a wire groove is provided on the tension part, a plurality of symmetrically arranged connecting blocks are arranged on both sides of the tension part, a U-shaped rod is provided above the connecting block, the connecting block and the U-shaped rod are detachably connected, and a clamping block and a tapered rib are provided in sequence on the lower end face of the middle part of the U-shaped rod.

[0005] In some embodiments, a through hole is provided on the connecting block, and a first bolt and a first nut are provided at both ends of the U-shaped rod. The first bolts at both ends of the U-shaped rod pass through the through holes on the connecting blocks symmetrically provided on both sides of the tension part and are connected with the first nuts.

[0006] In some embodiments, a screw rod is arranged between adjacent screw tubes, and a guide hole is provided on the screw rod that passes through both ends of the screw rod. The tension rod passes through the guide hole. The outer wall of the screw rod is provided with an external thread, and the inner wall of the screw tube is provided with an internal thread. The screw tube and the screw rod are connected by screwing the internal thread and the external thread.

[0007] In some embodiments, a hook is provided at the lower portion of the support rod.

[0008] In some embodiments, a second bolt and a second nut are provided at both ends of the tension rod, the second nut is sleeved on the second bolt, and the second clamp body is fixed by threading the second bolt and the second nut.

[0009] In some embodiments, the clamping block and the tapered ribs are both made of rubber.

[0010] In some embodiments, a convex point is provided on the lower end surface of the tapered flute.

[0011] In some embodiments, the first clamp body and the second clamp body are both made of stainless steel.

[0012] The present invention also relates to a method for clamping a tension clamp that is easy to assemble and disassemble, which is used for the above-mentioned tension clamp that is easy to assemble and disassemble, comprising the following steps: S1. Selecting a number of first clamp bodies that matches the number of wires based on the obtained number of wires, such that the sum of the number of first clamp bodies plus 2 equals the number of wires; S2. Based on the obtained center distance between adjacent wires, adjust the total length of the solenoid and the lead screw so that the center distance between adjacent wire slots corresponding to the adjacent wires is equal to the center distance between the adjacent wires; S3. Place the wires into the corresponding wire ducts; S4. Adjust the deformation of the tapered corrugation based on the obtained wire diameter so that the U-shaped rod is firmly connected to the wire.

[0013] In some embodiments, the calculation formula for the deformation of the tapered flute is: , Among them, δ is the deformation of the tapered corrugation, and d is the wire diameter.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention realizes the rapid disassembly and assembly of the tension wire clamp by the detachable connection between the tension rod, the first wire clamp body, the second wire clamp body and the U-shaped rod; the connection strength between the U-shaped rod and the tension part is enhanced by the first bolt and the first nut at both ends of the U-shaped rod, and the clamping block and the tapered rib on the U-shaped rod make the U-shaped rod and the conductor fixedly connected while avoiding wear on the conductor surface, thereby improving the stability of the tension wire clamp to the conductor and enhancing practicality; the screw rod and the screw are threadedly connected, so that the total length of the screw rod and the screw can be adjusted, thereby being suitable for the installation of conductors with different spacings, thereby enhancing versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of a tension clamp that is easy to assemble and disassemble according to an embodiment of the present invention.

[0016] Figure 2 Schematic diagram of the structure of the first wire clamp body in an embodiment of the present invention.

[0017] Figure 3 Schematic diagram of the structure of the second wire clamp body in an embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the structure of the screw rod in an embodiment of the present invention.

[0019] Figure 5 Schematic diagram of the structure of the U-shaped rod in an embodiment of the present invention.

[0020] Figure 6 This is an enlarged view of point A in the embodiment of the present invention.

[0021] Figure 7 Schematic diagram of the structure of the tension rod in an embodiment of the present invention.

[0022] Figure 8 The present invention is a flowchart of a method for clamping a tension clamp that is easy to assemble and disassemble according to an embodiment of the present invention.

[0023] Figure markings: 1-tension rod, 11-second bolt, 12-second nut, 2-first wire clamp body, 21-support rod, 22-screw tube, 23-tension part, 231-wire groove, 232-connecting block, 233-through hole, 24-hook, 3-second wire clamp body, 4-screw rod, 41-guide hole, 5-U-shaped rod, 51-first bolt, 52-first nut, 53-clamping block, 54-tapered rib, 55-bump. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] A tension clamp that is easy to disassemble and assemble, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, it includes a tension rod 1, on which two second clamp bodies 3 are mounted, and between which at least one first clamp body 2 is mounted, and the first clamp body 2 and the second clamp body 3 are detachably connected. By mounting the first clamp body 2 and the second clamp body 3 on the tension rod, the bearing capacity of the tension clamp is enhanced, and a plurality of first clamp bodies and second clamp bodies can be detachably connected in series.

[0026] Both the first and second clamp bodies 2 and 3 include a support rod 21. Screws 22 are provided at both ends of the upper portion of the support rod of the first clamp body. A screw 22 is provided at the end of the upper portion of the support rod of the second clamp body, adjacent to the first clamp body. Both the screw 22 and the upper portion of the support rod are mounted on a tension rod. A tension portion 23 is provided at the front end of the upper portion of the support rod. A wire trough 231 is provided on the tension portion. The wire trough 231 is used to position the conductors and initially define their positions. Multiple symmetrically arranged connecting blocks 232 are arranged on either side of the tension portion. A U-shaped rod 5 is provided above the connecting blocks. The connecting blocks 232 are detachably connected to the U-shaped rod 5. A clamping block 53 and a tapered rib 54 are sequentially provided on the lower end surface of the middle portion of the U-shaped rod. After the conductor is placed in the trough, the ends of the U-shaped rod are detachably connected to the symmetrically arranged connecting blocks 232, allowing the tapered rib 54 to contact the conductors, further securing them and enhancing the clamping strength and installation stability.

[0027] The detachable connection between the tension rod, the first wire clamp body, the second wire clamp body and the U-shaped rod enables the tension clamp to be quickly disassembled and assembled, thereby improving the convenience of disassembly, assembly and replacement.

[0028] In some embodiments, a through hole 233 is provided on the connecting block, and a first bolt 51 and a first nut 52 are provided at both ends of the U-shaped rod. The first bolts 51 at both ends of the U-shaped rod respectively pass through the through holes on the connecting blocks symmetrically provided on both sides of the tension part and are connected to the first nuts 52.

[0029] The first bolt 51 and the first nut 52 are threadedly connected, so that the U-shaped rod 5 and the tension part 23 firmly fasten the wire, thereby enhancing the installation stability of the wire and thus enhancing the practicality of the tension clamp.

[0030] The first bolt 51 and the first nut 52 at both ends of the U-shaped rod are used to enhance the connection strength between the U-shaped rod and the tension part, and the clamping block 53 and the tapered rib 54 on the U-shaped rod enable the U-shaped rod 5 to be fixedly connected to the conductor while avoiding wear on the conductor surface, thereby improving the stability of the tension clamp to the conductor and enhancing its practicality.

[0031] In some embodiments, a screw rod 4 is provided between adjacent spiral tubes, such as Figure 4 As shown, the screw rod is provided with a guide hole 41 passing through both ends of the screw rod, the tension rod 1 passes through the guide hole 41, the outer wall of the screw rod is provided with an external thread, and the inner wall of the screw tube is provided with an internal thread. The screw tube 22 is connected to the screw rod 4 by screwing the internal thread and the external thread.

[0032] The external thread on the outer wall of the screw rod and the internal thread on the inner wall of the solenoid are threadedly connected, so that the total length of the screw rod 4 and the solenoid can be adjusted, thereby being suitable for installing wires with different spacings and enhancing versatility.

[0033] In some embodiments, a hook 24 is provided at the lower portion of the support rod.

[0034] The tension clamp is fixed by the hook 24 to enhance the stability of the tension clamp.

[0035] In some embodiments, as Figure 7 As shown, a second bolt 11 and a second nut 12 are provided at both ends of the tension rod. The second nut 12 is sleeved on the second bolt. The second bolt 11 and the second nut 12 are screwed together to fix the second wire clamp body 3, thereby enhancing the stability of the first wire clamp body 2 and the second wire clamp body 3. The tension rod 1 can be quickly removed by withdrawing the second nut 12.

[0036] In some embodiments, the clamping block 53 and the tapered ribs 54 are both made of rubber.

[0037] The clamping block 53 and the tapered ribs 54 made of rubber can not only increase the friction coefficient between the tapered ribs 54 and the wires and enhance the clamping strength of the wires, but also play a buffering role to avoid wear on the wire surface.

[0038] In some embodiments, as Figure 6 As shown, a convex point 55 is provided on the lower end surface of the tapered flute.

[0039] The protrusions 55 further enhance the fastening strength of the tapered ribs 54 to the conductors, making the guide more stable.

[0040] In some embodiments, the first clamp body 2 and the second clamp body 3 are both made of stainless steel.

[0041] The first wire clamp body 2 and the second wire clamp body 3 made of stainless steel can not only prevent rust, but also enhance their own strength, thereby extending the service life of the first wire clamp body 2 and the second wire clamp body 3.

[0042] Installation process of a tension clamp that is easy to disassemble and assemble: According to the number of wires, the number of first wire clamp bodies that matches the number of wires is selected. If the number of wires is 3, the tension clamp includes two second wire clamp bodies 3, one first wire clamp body 2 and two screw rods 4. The solenoid 22 of the first second wire clamp body is detachably connected to the solenoid 22 at one end of the first wire clamp body through the first screw rod 4, and then the solenoid 22 at the other end of the first wire clamp body is detachably connected to the solenoid 22 of the second second wire clamp body through the second screw rod 4 to achieve detachable series connection.

[0043] According to the center distance between adjacent wires, the screw rod 4 is rotated along the screw tube 22 to adjust the total length of the screw tube and the screw rod so that the center distance between adjacent wire slots corresponding to adjacent wires is equal to the center distance between adjacent wires.

[0044] The first second clamp body 3, the first clamp body 2, and the second second clamp body 3, which have been adjusted in spacing and connected in series, are mounted on the tension rod. The second nuts 12 are then mounted on the second bolts. The second nuts 12 are screwed together with the second bolts 11 and abut against the second clamp body 3 to tighten the second clamp body 3. The tension clamp is fixed in place using the hooks 24 on the first and second clamp bodies.

[0045] After placing the wires into the corresponding wire ducts of the tensioning section, the first bolts 51 at both ends of the U-shaped rod are respectively passed through the through holes of the connecting blocks symmetrically arranged on both sides of the tensioning section and then threadedly connected with the first nuts 52, so that the tapered ribs 54 of the U-shaped rod are in close contact with the wires. By screwing the first nuts 52 to adjust the deformation of the tapered ribs, the U-shaped rod 5 and the tensioning section 23 firmly clamp the wires, improving the stability of the wires. If there are five pairs of connecting blocks 232 on both sides of each tensioning section, there are correspondingly five U-shaped rods 5. The five U-shaped rods 5 are detachably connected to the connecting blocks 232 in sequence, starting from the end closest to the tensioning rod. This allows the wires to be quickly and securely installed on the tensioning clamp.

[0046] Dismantling process of a tension clamp that is easy to dismantle and assemble: By tightening the first nut 52, the first nut 52 is quickly withdrawn from the first bolt 51. After the first nuts 52 at both ends of the U-shaped rod are withdrawn from the first bolt 51, the U-shaped rod 5 is grasped and removed from the through-hole of the connecting block, thereby quickly disassembling the U-shaped rod 5 from the connecting block of the tension section. After all U-shaped rods 5 on the same tension section are removed from the connecting block, the wires can be removed from the wire duct of the tension section, achieving quick wire removal.

[0047] After all the wires are taken out of the wire trough, remove the entire tension clamp. By twisting the first nuts 52 at both ends of the tension rod, withdraw the first nuts 52 at both ends of the tension rod from the first bolt, hold any end of the tension rod and remove the tension rod 1 from the guide hole, so as to quickly disassemble the tension rod 1 from the first clamp body 2 and the second clamp body 3. By twisting the screw rod 4, the screw rod 4 is withdrawn from the screw tube 22, so as to quickly disassemble the first clamp body 2, the screw rod 4, and the second clamp body 3. After disassembly, the first clamp body 2, the second clamp body 3, the tension rod 1, the screw rod 4, the U-shaped rod 5, etc. can be reused to assemble a new tension clamp, so as to reuse resources and reduce costs.

[0048] The present invention also relates to a method for clamping a tension clamp that is easy to disassemble, which is used for the above-mentioned tension clamp that is easy to disassemble, such as Figure 8 As shown, the following steps are included: S1. According to the acquired number of wires, select the number of first wire clamp bodies that matches the number of wires, so that the sum of the number of first wire clamp bodies plus 2 equals the number of wires, that is, the number of wires = the number of first wire clamp bodies + 2; Existing tension clamps typically have a fixed number of conductors that can be fixed and cannot be adjusted based on the number of conductors to be installed on site. This requires the clamp to be used with multiple specifications each time, limiting its scope of use. The present invention selects a number of first clamp bodies that matches the number of conductors, allowing the tension clamp to not only simultaneously install and fix multiple conductors but also increase or decrease the number of first clamp bodies based on the number of conductors required. This allows the tension clamp to meet the installation requirements of different numbers of conductors and improves its versatility.

[0049] S2. Based on the obtained center distance between adjacent wires, adjust the total length of the solenoid and the lead screw so that the center distance between adjacent wire slots corresponding to the adjacent wires is equal to the center distance between the adjacent wires; Existing tension clamps typically have a fixed spacing between the wires they secure, making it difficult to adjust the spacing between adjacent wires. The present invention utilizes a threaded connection between the external threads of the screw rod's outer wall and the internal threads of the inner wall of the solenoid, making the combined length of the solenoid and screw rod adjustable. This allows the combined length of the solenoid and screw rod to be adjusted based on the spacing between the wires, allowing the tension clamp to accommodate wires with varying spacing, thereby improving its versatility.

[0050] S3. Place the wires into the corresponding wire ducts; S4. Adjust the deformation of the tapered corrugation based on the obtained wire diameter so that the U-shaped rod 5 is firmly connected to the wire. The calculation formula for the deformation of the tapered corrugation is: , Among them, δ is the deformation of the tapered corrugation, d is the wire diameter, and the unit of the wire diameter is mm.

[0051] If the deformation of the tapered corrugation is insufficient, the U-shaped rod 5 cannot be stably fastened to the conductor, and the conductor may become loose or slip, resulting in poor clamping and fixing effect of the tension clamp on the conductor, and poor practicality; if the deformation of the tapered corrugation is excessive, the pressure exerted on the conductor by the U-shaped rod 5 and the tension part 23 is too large, which may cause damage to the conductor; therefore, the deformation of the tapered corrugation is adjusted according to the diameter of the conductor, so that the pressure exerted on the conductor by the U-shaped rod 5 and the tension part 23 is adjusted within an appropriate range, thereby achieving stable fastening of the conductor while avoiding damage to the conductor.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tension clamp that is easy to assemble and disassemble, characterized by: The invention comprises a tension rod, wherein two second wire clamp bodies are mounted on the tension rod, at least one first wire clamp body is mounted between the two second wire clamp bodies, and the first wire clamp body and the second wire clamp body are detachably connected; The first wire clamp body and the second wire clamp body both include support rods, and both ends of the upper part of the support rod of the first wire clamp body are provided with screw tubes, and the upper part of the support rod of the second wire clamp body is provided with a screw tube close to one end of the first wire clamp body, and the screw tube and the upper part of the support rod are both mounted on the tension rod, and the front end of the upper part of the support rod is provided with a tension part, and the tension part is provided with a wire groove, and a plurality of symmetrically arranged connecting blocks are arranged on both sides of the tension part, and a U-shaped rod is provided above the connecting block, and the connecting block is detachably connected to the U-shaped rod, and the lower end face of the middle part of the U-shaped rod is provided with a clamping block and a tapered ridge in sequence.

2. The tension clamp that is easy to assemble and disassemble according to claim 1, characterized in that: A through hole is provided on the connecting block, and a first bolt and a first nut are provided at both ends of the U-shaped rod. The first bolts at both ends of the U-shaped rod respectively pass through the through holes on the connecting blocks symmetrically provided on both sides of the tension part and are connected with the first nuts.

3. The easily disassembled tension clamp according to claim 1, characterized in that: A screw rod is arranged between adjacent screw tubes, and a guide hole is provided on the screw rod that passes through both ends of the screw rod. The tension rod passes through the guide hole. The outer wall of the screw rod is provided with an external thread, and the inner wall of the screw tube is provided with an internal thread. The screw tube is connected to the screw rod by screwing the internal thread and the external thread.

4. The easily disassembled tension clamp according to claim 1, characterized in that: A hook is provided at the lower part of the support rod.

5. The tension clamp that is easy to assemble and disassemble according to claim 1, characterized in that: A second bolt and a second nut are provided at both ends of the tension rod. The second nut is sleeved on the second bolt, and the second wire clamp body is fixed by threading the second bolt and the second nut.

6. The easily disassembled tension clamp according to claim 1, characterized in that: The clamping block and the tapered ribs are both made of rubber.

7. The easily disassembled tension clamp according to claim 6, characterized in that: The lower end surface of the tapered rib is provided with a convex point.

8. The easily disassembled tension clamp according to claim 1, characterized in that: The first wire clamp body and the second wire clamp body are both made of stainless steel.

9. A method for clamping a tension clamp that is easy to assemble and disassemble, characterized in that: A tension clamp that is easy to assemble and disassemble, used in any one of claims 1 to 8, comprising the following steps: S1. Selecting a number of first clamp bodies that matches the number of wires based on the obtained number of wires, such that the sum of the number of first clamp bodies plus 2 equals the number of wires; S2. Based on the obtained center distance between adjacent wires, adjust the total length of the solenoid and the lead screw so that the center distance between adjacent wire slots corresponding to the adjacent wires is equal to the center distance between the adjacent wires; S3. Place the wires into the corresponding wire ducts; S4. Adjust the deformation of the tapered corrugation based on the obtained wire diameter so that the U-shaped rod is firmly connected to the wire.

10. The method for clamping a tension clamp that is easy to assemble and disassemble according to claim 9, characterized in that: The calculation formula of the tapered corrugation deformation is: ， Among them, δ is the deformation of the tapered corrugation, and d is the wire diameter.

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