Energy-saving bolt type strain clamp

By using multiple annular clamps in the tension clamp for ring array clamping, and using the one-way rotation technology and the limiting function of the wedge structure, the wire deformation and slack problems caused by concentrated clamping force in the prior art are solved, and a more uniform clamping force and higher wire stability are achieved.

CN119627760APending Publication Date: 2025-03-14YUNNAN TEGU ELECTRIC CO LTD
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Patent Information

Application Number
CN202311187084.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-14
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

When the existing energy-saving bolt-type aluminum alloy tension-resistant wire is clamped, the clamping force is concentrated on a small area, which can easily lead to deformation and lax clamping of the wire, and has great limitations in use.

Method used

A number of ring-shaped fixtures arranged along the length of the wire are used for ring-shaped array clamping, and the one-way rotation technology and the limit function of the wedge-shaped structure during rotation are used to squeeze and clamp the wires simultaneously, thereby increasing the contact area of ​​the clamping part.

Benefits of technology

By uniformizing the force to clamp the wire, the pressure per unit area is reduced, and the service life and stability of the wire in the clamped part is improved, which solves the problems of deformation and slack caused by concentrated clamping force.

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Abstract

The invention relates to the technical field of strain clamps, and discloses an energy-saving bolt type strain clamp which comprises two array type wire clamping structures, a pipeline body rotating structure and two elastic abutting type braking structures. According to the energy-saving bolt type strain clamp, a plurality of annular clamps arranged along the length direction of a wire can be used for clamping the circumferential surface of the wire in an annular array manner, and then a unidirectional rotation technology and a limiting function of a wedge-shaped structure during rotation are used; therefore, the plurality of annular clamps can simultaneously and synchronously extrude the wire from the periphery of the circumferential surface to the central line direction, so that the circumferential side surface of the wire is clamped by the plurality of annular clamps with uniform force, the contact area of the clamping part is increased, and the clamping force can be distributed on the circumferential surface of the wire in a relatively uniform manner; therefore, the unit area pressure on the wire is reduced, and the service life and the stability of the wire at the clamped part are improved.
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Description

Technical Field

[0001] The invention relates to the technical field of tension clamps, in particular to an energy-saving bolt-type tension clamp. Background Art

[0002] The tension clamp fixes the overhead insulated aluminum conductor or bare aluminum conductor at the corner or terminal to the insulator of the tension pole, thereby fixing or tightening the overhead conductor. The insulation cover is used in conjunction with the tension clamp to play an insulating and protective role.

[0003] To this end, my country's patent announcement number "CN209929923U" announced "an energy-saving bolt-type aluminum alloy tension wire clamp", whose main structure includes a pressure plate, a lead mechanism and a protection mechanism. The lead mechanism is on one side of the bottom end of the pressure plate, and the lead mechanism includes a buckle ring, one end of the buckle ring is rotatably connected to a circular ring by rotating the bolt, and springs A are fixedly connected to the inside of both ends of the circular ring, and the other ends of the two springs A are fixedly connected to a paddle A through a clamping column A, and the outer surface of the bottom end of the buckle ring is fixedly connected to a moving block, and a paddle B is arranged inside the moving block, and one end of the paddle B is fixedly connected to a clamping column B; by designing a buckle ring, a circular ring, a moving block and a paddle B installed on one side of the bottom end of the pressure plate, it is convenient for the wire to penetrate the device, preventing the wire from being unable to be penetrated at one time during high-altitude use, improving the efficiency of penetrating the wire, and also strengthening the fixation of the wire, greatly facilitating the construction operation, with high controllability and avoiding accidents.

[0004] In the actual use of the above-mentioned energy-saving bolt-type aluminum alloy tension wire clamp, since it uses a U-shaped bolt to clamp and compact the wire, when the U-shaped bolt clamps the wire, the force points between the two are concentrated on the bending part of the U-shaped bolt and the contact area of ​​the wire, and the effective contact area between the two is small. Due to the length of the clamped wire, after clamping, the clamping force needs to be greater than the gravity of the wire when it is in a suspended state. When the gravity acts on the above-mentioned clamping point, it will have a huge impact on the wire at this part. Since the clamping point is too single and the area is small, the wire at this part is extremely easy to deform. Under the action of long-term wire shaking, the clamping part may become loose, which has great limitations on use. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an energy-saving bolt-type tension wire clamp, which utilizes multiple annular clamps arranged along the length direction of the wire to perform an annular array clamping effect on the circumferential surface of the wire, and then utilizes the unidirectional rotation technology and the limiting function of the wedge structure during rotation, so that the multiple annular clamps can simultaneously and synchronously squeeze the wire from the periphery of the circumferential surface to the center line direction, so that the circumferential side surface of the wire is clamped by the multiple annular clamps with uniform force, increasing the contact area of ​​the clamping part and allowing the clamping force to be distributed on the circumferential surface of the wire in a more uniform manner, thereby reducing the unit area pressure on the wire, so as to improve the service life and stability of the wire at the clamped part, thereby solving the above technical problems.

[0006] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an energy-saving bolt-type tension wire clamp, comprising a transverse fixed base plate, a shaft body connector connected to a U-shaped clamp at the end of an insulator is arranged on one side of the upper surface of the transverse fixed base plate, and a shaft sleeve fixedly installed below the transverse fixed base plate, and also comprising two array-type wire clamping structures, which are fixedly installed on both sides of the lower surface of the transverse fixed base plate, and a plurality of annular array-type annular clamps which provide a squeezing function for the wire from the periphery of the circumferential surface to the center line direction and a special-shaped structure arranged on the outer surface of the middle area of ​​the annular clamps are arranged inside; the pipe body is rotated A rotating structure is installed in the sleeve hole of the shaft sleeve through a bearing and is sleeved on the periphery of the middle area of ​​the annular clamp, and is internally provided with a fan-shaped protrusion structure and two groups of symmetrical bottom right-angle tooth structures for generating a force toward the center on the special-shaped structure when rotating; and two elastic abutment-type braking structures are fixedly installed on the upper end surface of the transverse fixed base plate, and are internally provided with a top right-angle tooth structure that abuts against the upper half area of ​​the bottom right-angle tooth structure and controls the fan-shaped protrusion structure to only rotate in the required direction to generate an inward squeezing force on the special-shaped structure, and a spiral spring that generates downward pressure on the top right-angle tooth structure.

[0007] Preferably, the array-type wire clamping structure includes two longitudinal fixed shafts fixedly installed on both sides of the lower surface of the transverse fixed substrate, and a ring body is fixed to the bottom end of each longitudinal fixed shaft, and the circumferential surface of the ring body is provided with three axial holes penetrating its inner and outer ring surfaces, and each axial hole is respectively provided with a movable rod moving along its axial direction, and each movable rod is respectively installed with an annular clamp at the end portion located in the annular hole of the annular body, and the outer circumferential surface of the middle area of ​​each annular clamp is provided with an integrated special-shaped structure.

[0008] Preferably, the telescopic range of the movable rod is larger than the structural radius of the annular hole in the annular body, and a limiting body having a structural radius larger than the axial hole is provided at the end of the movable rod located at the periphery of the annular body.

[0009] Preferably, a protective pad made of plastic material is adhered to the inner concave surface of the annular clamp.

[0010] Preferably, the distance between the end a of the special-shaped structure and the axis of the annular body is smaller than the distance between the end b of the special-shaped structure and the axis of the annular body, and the outer part of the special-shaped structure from the end a to the end b is transitionally connected to form an arc structure.

[0011] Preferably, the pipe body rotating structure includes a hollow pipe body installed in the sleeve hole of the sleeve through a bearing and placed on the periphery of the middle area of ​​the annular clamp, the outer circumferential surface of the central area of ​​the hollow pipe body is provided with a hexagonal protrusion structure of an integrated structure, and a group of bottom right-angled tooth structures are respectively provided on both sides of the circumferential surface of the hollow pipe body, and the hollow pipe body is provided with a fan-shaped protrusion structure in the middle area of ​​its hollow cavity, which generates a force toward the center on the special-shaped structure when rotating.

[0012] Preferably, the distance between the inner concave surface of the fan-shaped protrusion structure and the center line of the hollow pipe body is the same as the distance between the end a of the special-shaped structure and the center line of the hollow pipe body.

[0013] Preferably, the bottom right-angle tooth structure is composed of a bottom edge coincident with the outer circumferential surface of the hollow pipe body, a vertical edge d pointing to the center line of the hollow pipe body, and a hypotenuse c connecting the bottom edge and the vertical edge d.

[0014] Preferably, the elastic resistance braking structure includes a longitudinal hollow shell fixedly mounted on the upper end surface of the transverse fixed base plate, a longitudinal movable cavity is arranged inside the longitudinal hollow shell, a plurality of longitudinal slide grooves are arranged on the circumferential side surface of the longitudinal movable cavity, a movable plate movable along its longitudinal direction is arranged inside the longitudinal movable cavity, a slide rail sliding along the longitudinal slide groove is arranged on the circumferential surface of the movable plate, a coil spring exerting downward pressure on the movable plate is arranged on the upper end surface of the movable plate, a telescopic resistance rod penetrating the bottom structure of the longitudinal hollow shell and the corresponding structure of the transverse fixed base plate is arranged at the center of the lower end surface of the movable plate, a semi-annular resistance body located in the upper half area of ​​the bottom right-angle tooth structure is arranged at the bottom end of the telescopic resistance rod, a top right-angle tooth structure cooperating with the bottom right-angle tooth structure is arranged on the bottom inner concave surface of the semi-annular resistance body

[0015] Preferably, when the top right-angle tooth structure rotates in the required rotational direction so as to control the fan-shaped protrusion structure to exert an inward extrusion force on the special-shaped structure, the oblique sides c of the top right-angle tooth structure and the bottom right-angle tooth structure conflict with each other, and conversely, the vertical sides d of the two conflict with each other.

[0016] Compared with the prior art, the present invention provides an energy-saving bolt-type tension clamp, which has the following beneficial effects: The energy-saving bolt-type tension clamp utilizes a plurality of annular clamps arranged along the length direction of the wire to clamp the circumferential surface of the wire in an annular array manner, and then utilizes the unidirectional rotation technology and the limiting function of the wedge-shaped structure during rotation, so that the plurality of annular clamps can simultaneously and synchronously squeeze the wire from the periphery of the circumferential surface to the center line direction, so that the circumferential side surface of the wire is clamped by the plurality of annular clamps with uniform force, increasing the contact area of ​​the clamping part and allowing the clamping force to be distributed on the circumferential surface of the wire in a relatively uniform manner, thereby reducing the unit area pressure on the wire, so as to improve the service life and stability of the wire at the clamped part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 A three-dimensional diagram of the array-type wire clamping structure of the present invention; Figure 4 It is a three-dimensional diagram of the pipeline body rotating structure in the present invention; Figure 5 It is a left side view of the pipeline body rotating structure in the present invention; Figure 6 It is a three-dimensional cross-sectional view of the elastic contact type braking structure in the present invention.

[0018] Among them: 1. Laterally fixed base plate; 2. Axis connector; 3. Bushing; 4. Array wire clamping structure; 41. Ring clamp; 42. Ring body; 43. Longitudinal fixed axis; 44. Movable rod; 45. Special-shaped structure; 46. Protective pad; 5. Pipe body rotation structure; 51. Hollow pipe body; 52. Hexagonal protrusion structure; 53. Hollow cavity; 54. Bottom right-angle tooth structure; 55. Fan-shaped protrusion structure; 6. Elastic resistance braking structure; 61. Longitudinal hollow shell; 62. Longitudinal movable cavity; 63. Longitudinal slide groove; 64. Slide rail; 65. Movable plate; 66. Helical spring; 67. Telescopic resistance rod; 68. Semi-annular resistance body; 69. Top right-angle tooth structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 and Figure 2An energy-saving bolt-type tension clamp comprises a transverse fixed base plate 1, a shaft connector 2 connected to a U-shaped clamp at the end of an insulator is arranged on one side of the upper surface of the transverse fixed base plate 1, and a shaft sleeve 3 fixedly installed under the transverse fixed base plate 1. When working, the shaft connector 2 is connected to the U-shaped clamp at the end of the insulator. Of course, the U-shaped clamp is in the form of a symmetrically designed left half and a right half. When in use, the sleeve holes of the left half and the right half can be sleeved on the two symmetrical shafts of the shaft connector 2 to realize a rotating connection relationship.

[0021] To achieve circular array clamping of wires, see Figure 1 , Figure 2 and Figure 3 It is necessary to set up two array-type wire clamping structures 4, which are fixedly installed on both sides of the lower surface of the horizontal fixed substrate 1, and there are multiple annular array-type annular clamps 41 inside which provide the function of squeezing the wire from the periphery of the circumferential surface to the center line direction, and a special-shaped structure 45 arranged on the outer surface of the middle area of ​​the annular clamp 41. When the outer arc surface of the special-shaped structure 45 is subjected to a force toward the center direction, the annular clamp 41 will be driven to generate a movement trend toward the center direction of the structure, so that the annular clamp 41 clamps the circumferential surface of the wire in an annular array, thereby increasing the contact area of ​​the clamping part and allowing the clamping force to be distributed on the circumferential surface of the wire in a more uniform manner, thereby reducing the unit area pressure on the wire, so as to improve the service life and stability of the wire in the clamped part.

[0022] For the specific structure of the array type wire clamping structure 4, please refer to Figure 3 , including two longitudinal fixed shafts 43 fixedly mounted on both sides of the lower surface of the horizontal fixed base plate 1, the bottom end of each longitudinal fixed shaft 43 is fixed with a ring body 42, the circumferential surface of the ring body 42 is provided with three axial holes penetrating the inner and outer ring surfaces thereof, each axial hole is respectively provided with a movable rod 44 moving along its axial direction, in order to ensure the stable working relationship of the movable rod 44 and prevent the detachment phenomenon from occurring, it is necessary to make the telescopic range of the movable rod 44 larger than the structural radius of the ring hole in the ring body 42, and the movable rod 44 is provided with a limiter having a structural radius larger than the axial hole at the end portion located on the outer periphery of the ring body 42, each A ring clamp 41 is installed at each end of the movable rod 44 located in the ring hole of the ring body 42. In order to reduce the damage of the ring clamp 41 to the wire on the contact surface, it is best to adhere a protective pad 46 made of plastic material to the inner concave surface of the ring clamp 41. The outer circumferential surface of the middle area of ​​each ring clamp 41 is provided with an integrated special-shaped structure 45. Since the movable rod 44 has a limiting effect on the ring clamp 41, the movement state of the ring clamp 41 is only the movement toward the center line direction of the ring body 42, thereby achieving clamping or releasing of the wire.

[0023] The specific situation of the special-shaped structure 45 is as follows: the distance between the end a of the special-shaped structure 45 and the axial center line of the ring body 42 is smaller than the distance between the end b of the special-shaped structure 45 and the axial center line of the ring body 42, and the outer part of the special-shaped structure 45 from the end a to the end b is a transition connection to form an arc structure. When the outer structure is inconvenient for limiting the position of the special-shaped structure 45 from the end a to the end b, the special-shaped structure 45 can move toward the center of the structure under the restriction of the structure size.

[0024] In order to achieve expansion or contraction of the annular fixture 41 during rotation, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 It is necessary to set up a pipe body rotating structure 5, which is installed in the sleeve hole of the shaft sleeve 3 through a bearing and is sleeved on the periphery of the middle area of ​​the annular clamp 41. A fan-shaped protrusion structure 55 and two sets of symmetrical bottom right-angle tooth structures 54 are arranged inside the pipe body, which generate a force toward the center on the special-shaped structure 45 when rotating. The hollow pipe body 51 is directional rotated by a wrench, and the rotation direction makes the fan-shaped protrusion structure 55 first contact the a end of the special-shaped structure 45. When the rotation continues, the fan-shaped protrusion structure 55 will form an extrusion effect on the special-shaped structure 45, thereby forcing the special-shaped structure 45 to drive the annular clamp 41 to clamp the wire, and the rotation angle is less than 180°, which has the functions of quick adjustment and instant clamping, and has a higher clamping efficiency.

[0025] For the specific structure of the pipeline body rotating structure 5, please refer to Figure 4 and Figure 5 , comprising a hollow pipe body 51 installed in the sleeve hole of the shaft sleeve 3 through a bearing and sleeved on the periphery of the middle area of ​​the annular fixture 41, the outer circumferential surface of the central area of ​​the hollow pipe body 51 is provided with an integrated hexagonal protrusion structure 52, and a group of bottom right-angle tooth structures 54 are respectively provided on both sides of the circumferential surface of the hollow pipe body 51. In order to have the ability of unidirectional rotation, it is necessary to make the bottom right-angle tooth structure 54 consist of a bottom edge coinciding with the outer circumferential surface of the hollow pipe body 51, a vertical edge d pointing to the center line of the hollow pipe body 51, and a hypotenuse c connecting the bottom edge and the vertical edge d The hollow pipe body 51 is structured such that a fan-shaped protrusion structure 55 is provided in the middle area of ​​its hollow cavity 53, which generates a force toward the center on the special-shaped structure 45 when it rotates. In order to ensure that the fan-shaped protrusion structure 55 can drive the special-shaped structure 45, it is necessary to make the distance between the inner concave surface of the fan-shaped protrusion structure 55 and the center line of the hollow pipe body 51 the same as the distance between the end a of the special-shaped structure 45 and the center line of the hollow pipe body 51. The hollow pipe body 51 is rotated by clamping a wrench on the periphery of the hexagonal protrusion structure 52.

[0026] In order to achieve the one-way rotation braking capability of the hollow pipe body 51, please refer to Figure 1 , Figure 2 and Figure 6 , it is necessary to set two elastic abutment-type brake structures 6, which are fixedly installed on the upper end surface of the horizontal fixed base plate 1, and the top right-angle tooth structure 69 that abuts against the upper half area of ​​the bottom right-angle tooth structure 54 and controls the fan-shaped protrusion structure 55 to only rotate in the required direction to produce an inward extrusion force on the special-shaped structure 45, and the spiral spring 66 that produces downward pressure on the top right-angle tooth structure 69, when the rotation direction of the hollow pipe body 51 makes the oblique angle of the bottom right-angle tooth structure 54 and the top right-angle tooth structure 69 When the edges c collide with each other, an upward force will be generated, forcing the coil spring 66 to compress, thereby realizing normal rotation and clamping. On the contrary, when the rotation direction of the hollow pipe body 51 causes the vertical edges d of the bottom right-angle tooth structure 54 and the top right-angle tooth structure 69 to collide with each other, the force will not be transmitted upward. Therefore, the bottom right-angle tooth structure 54 and the top right-angle tooth structure 69 will be stuck, resulting in an inability to rotate, so that the wire will not become loose after being clamped, thereby ensuring the stability of the work.

[0027] For the specific structure of the elastic contact type brake structure 6, please refer to Figure 6 , including a longitudinal hollow shell 61 fixedly mounted on the upper end surface of the transverse fixed substrate 1, a longitudinal hollow shell 61 is provided with a longitudinal movable cavity 62 inside, a plurality of longitudinal slide grooves 63 are provided on the circumferential side surface of the longitudinal movable cavity 62, a movable plate 65 movable along its longitudinal direction is arranged inside the longitudinal movable cavity 62, a slide rail 64 sliding along the longitudinal slide groove 63 is arranged on the circumferential surface of the movable plate 65, a coil spring 66 for exerting downward pressure on the movable plate 65 is arranged on the upper end surface of the movable plate 65, a telescopic resistance rod 67 penetrating the bottom structure of the longitudinal hollow shell 61 and the corresponding structure of the transverse fixed substrate 1 is installed at the center of the lower end surface of the movable plate 65, a semi-annular resistance body 68 located in the upper half area of ​​the bottom right-angle tooth structure 54 is installed at the bottom end of the telescopic resistance rod 67, and a top right-angle tooth structure 69 cooperating with the bottom right-angle tooth structure 54 is arranged on the bottom inner concave surface of the semi-annular resistance body 68

[0028] During installation, when it is necessary to rotate the top right-angle tooth structure 69 in the required direction so as to control the fan-shaped protrusion structure 55 to exert an inward extrusion force on the special-shaped structure 45, the hypotenuse c of the top right-angle tooth structure 69 and the bottom right-angle tooth structure 54 conflict with each other, and conversely, the vertical edges d of the two conflict with each other.

[0029] When in use, the shaft connector 2 is connected to the U-shaped clamp at the end of the insulator, and then one end of the wire to be clamped is inserted into the central area of ​​the multiple annular clamps 41, and then tightened with a wrench.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving bolt-type tension clamp, comprising a transverse fixing base plate (1), a shaft connecting body (2) connected to a U-shaped clamp at an end of an insulator and provided on one side of the upper surface of the transverse fixing base plate (1), and a shaft sleeve (3) fixedly mounted below the transverse fixing base plate (1), characterized in that: Also includes Two array-type wire clamping structures (4) are fixedly mounted on both sides of the lower surface of the transverse fixed base plate (1), and are provided with a plurality of annular array-type annular clamps (41) therein that provide a function of squeezing the wire from the periphery of the circumference to the center line, and a special-shaped structure (45) is provided on the outer surface of the middle area of ​​the annular clamps (41); The pipe body rotating structure (5) is installed in the sleeve hole of the shaft sleeve (3) through a bearing and is sleeved on the periphery of the middle area of ​​the annular clamp (41), and is provided with a fan-shaped protrusion structure (55) that generates a force toward the center on the special-shaped structure (45) when rotating, and two groups of symmetrical bottom right-angle tooth structures (54); and two elastic abutment-type brake structures (6) fixedly mounted on the upper end surface of the transverse fixed base plate (1), wherein a top right-angled tooth structure (69) abutting against the upper half of the bottom right-angled tooth structure (54) and controlling the fan-shaped protrusion structure (55) to rotate only in the required direction to produce an inward extrusion force on the special-shaped structure (45) and a spiral spring (66) producing downward pressure on the top right-angled tooth structure (69) are arranged inside the two elastic abutment-type brake structures (6) fixedly mounted on the upper end surface of the transverse fixed base plate (1), and wherein a top right-angled tooth structure (69) abutting against the upper half of the bottom right-angled tooth structure (54) and controlling the fan-shaped protrusion structure (55) to rotate only in the required direction to produce an inward extrusion force on the special-shaped structure (45) are provided inside the two elastic abutment-type brake structures (6).

2. The energy-saving bolt-type tension clamp according to claim 1 is characterized in that: The array-type wire clamping structure (4) comprises two longitudinal fixed shafts (43) fixedly mounted on both sides of the lower surface of the transverse fixed base plate (1), a ring body (42) being fixedly mounted at the bottom end of each longitudinal fixed shaft (43), three axial holes penetrating the inner and outer annular surfaces of the ring body (42) being arranged on the circumferential surface thereof, each axial hole being provided with a movable rod (44) movable along its axial direction, each movable rod (44) being respectively provided with an annular clamp (41) at the end portion thereof located in the annular hole of the annular body (42), and an integrally-structured special-shaped structure (45) being arranged on the outer circumferential surface of the middle region of each annular clamp (41).

3. The energy-saving bolt-type tension clamp according to claim 2 is characterized in that: The telescopic range of the movable rod (44) is greater than the structural radius of the annular hole in the annular body (42), and the movable rod (44) is provided with a limiting body having a structural radius greater than the shaft hole at an end portion located outside the annular body (42).

4. The energy-saving bolt-type tension clamp according to claim 3 is characterized in that: A protective pad (46) made of plastic material is adhered to the inner concave surface of the annular clamp (41).

5. The energy-saving bolt-type tension clamp according to claim 3 is characterized in that: The distance between the end a of the special-shaped structure (45) and the axis of the annular body (42) is smaller than the distance between the end b of the special-shaped structure (45) and the axis of the annular body (42), and the outer portion of the special-shaped structure (45) from the end a to the end b is transitionally connected to form an arc structure.

6. The energy-saving bolt-type tension clamp according to claim 5 is characterized in that: The pipe body rotating structure (5) comprises a hollow pipe body (51) which is installed in the sleeve hole of the shaft sleeve (3) through a bearing and is sleeved on the periphery of the middle area of ​​the annular clamp (41); the outer circumferential surface of the central area of ​​the hollow pipe body (51) is provided with an integrated hexagonal protrusion structure (52); a group of bottom right-angle tooth structures (54) are respectively provided on both sides of the circumferential surface of the hollow pipe body (51); and the hollow pipe body (51) is provided with a fan-shaped protrusion structure (55) in the middle area of ​​its hollow cavity (53) which generates a force toward the center on the special-shaped structure (45) when rotating.

7. The energy-saving bolt-type tension clamp according to claim 6 is characterized in that: The distance between the inner concave surface of the fan-shaped protrusion structure (55) and the center line of the hollow pipe body (51) is the same as the distance between the end a of the special-shaped structure (45) and the center line of the hollow pipe body (51).

8. The energy-saving bolt-type tension clamp according to claim 6, characterized in that: The bottom right-angle tooth structure (54) is composed of a bottom edge coincident with the outer circumferential surface of the hollow pipe body (51), a vertical edge d pointing to the center line of the hollow pipe body (51), and a hypotenuse c connecting the bottom edge and the vertical edge d.

9. The energy-saving bolt-type tension clamp according to claim 8, characterized in that: The elastic resistance-type braking structure (6) comprises a longitudinal hollow shell (61) fixedly mounted on the upper end surface of a transverse fixed base plate (1); a longitudinal movable cavity (62) is arranged inside the longitudinal hollow shell (61); a plurality of longitudinal slide grooves (63) are arranged on the circumferential side surface of the longitudinal movable cavity (62); a movable plate (65) movable along the longitudinal direction is arranged inside the longitudinal movable cavity (62); a slide rail (64) sliding along the longitudinal slide groove (63) is arranged on the circumferential surface of the movable plate (65); and a longitudinal movable cavity (62) is provided with a longitudinal movable plate (65). A coil spring (66) is placed to exert downward pressure on it, and a telescopic abutment rod (67) is installed at the center of the lower end surface of the movable plate (65) and passes through the bottom structure of the longitudinal hollow shell (61) and the corresponding structure of the transverse fixed base plate (1). A semi-annular abutment body (68) located in the upper half area of ​​the bottom right-angle tooth structure (54) is installed at the bottom end of the telescopic abutment rod (67), and the bottom inner concave surface of the semi-annular abutment body (68) is provided with a top right-angle tooth structure (69) that cooperates with the bottom right-angle tooth structure (54).

10. The energy-saving bolt-type tension clamp according to claim 9, characterized in that: When the top right-angle tooth structure (69) rotates in the required rotational direction so as to control the fan-shaped protrusion structure (55) to generate an inward extrusion force on the special-shaped structure (45), the oblique sides c of the top right-angle tooth structure (69) and the bottom right-angle tooth structure (54) collide with each other, and conversely, the vertical sides d of the two collide with each other.

Citation Information

Patent Citations

  • Energy-saving bolt type aluminum alloy strain clamp

    CN209929923U