A clamp suitable for prestressed steel cable

Abstract

The present application relates to the field of building technology, and specifically to a clamp suitable for prestressed steel cables, comprising a shell assembly, a steel cable penetration hole, a clamping assembly, and an operating assembly; the shell assembly comprises a fixed shell fixedly connected to the outer wall of the building, and a rotating shell detachably arranged on the fixed shell; the steel cable penetration holes are provided with two, and a steel cable penetration hole is respectively provided in the fixed shell and the rotating shell, and the steel cable penetration hole is used to pass the steel cable; the clamping assemblies are provided with two, which are used to clamp the corresponding steel cables; the operating assembly is arranged in the fixed shell to drive the clamping assembly to realize the clamping action; the clamp described in this case can clamp and fix two steel cables at the same time through two steel cable penetration holes, which is convenient for arranging a mesh-like steel cable layout, and the relative angle of the two steel cables can be adjusted; the two steel cables can be clamped synchronously, which can be suitable for steel cables of different diameters, and the operation is simple, and only the worm body needs to be rotated.

Description

Technical Field

[0001] The present application relates to the field of construction technology, and in particular to a clamp suitable for prestressed steel cables. Background Art

[0002] The cable structure is a structural form with a long history and is mostly used in the large-span exterior wall system of public buildings. The cable structure can make full use of the material properties and mainly relies on the tensile stress of the cable to bear the main load. The cable structure is relatively convenient to construct, which is conducive to the design of the building shape and can meet the requirements of various building planes. The cable structure can be combined with the new curtain wall to construct a curtain wall with a very modern aesthetic. A special clamp is required when connecting the steel cable to the wall. The clamp of the prior art can clamp two steel cables of one warp and one weft, and then complete the frame arrangement of the steel cables. However, the existing clamp cannot adjust the angle of the two steel cables, and can only adapt to steel cables of a single diameter, so its application is greatly limited. Summary of the invention

[0003] A clamp suitable for prestressed steel cables, comprising a housing assembly, a steel cable perforation, a clamping assembly, and an operating assembly;

[0004] The housing assembly comprises a fixed housing fixedly connected to the building exterior wall, and a rotating housing detachably arranged on the fixed housing; the fixed housing comprises a fixed foundation arranged in the left-right direction, a fixed base arranged on the left side of the fixed foundation for fixedly connecting to the building exterior wall, a tapered end portion arranged on the right side of the fixed foundation and gradually narrowing from left to right, a worm gear inner cavity arranged on the right side of the inner cavity of the fixed foundation, an inner cavity left hole arranged on the left side of the inner cavity of the worm gear, a worm through hole arranged to penetrate the fixed foundation in the front-back direction, a right opening arranged on the right side of the inner cavity of the worm gear, and a rotation-stopping longitudinal rod arranged in the right opening, and the worm through hole is arranged to communicate with the inner cavity of the worm gear;

[0005] The rotating housing comprises a rotating base arranged along the left-right direction, a tapered circular groove arranged on the left side of the rotating base and matched with the tapered end, and a rotating opening formed on the left side of the rotating base;

[0006] The steel cable through holes are provided with two, and the fixed housing and the rotating housing are respectively provided with a steel cable through hole, and the steel cable through holes are used to pass the steel cable;

[0007] The clamping assemblies are provided with two, and a clamping assembly is respectively provided in the fixed shell and the rotating shell, and the clamping assembly is used to clamp the steel cable in the corresponding steel cable perforation; the clamping assembly includes a clamping chamber, a translation assembly, and a clamping assembly; the clamping chamber includes a clamping inner cavity arranged in the fixed shell or the rotating shell at a position corresponding to the steel cable perforation, and the upper end surface and the lower end surface of the clamping inner cavity are respectively provided with a horizontal slot along the left and right directions, and the two clamping chambers are axially symmetrically distributed, the clamping chamber on the left is connected with the left hole of the inner cavity, and the clamping chamber on the right is connected with the rotating opening; the translation assembly corresponds to the clamping chamber one by one, and the translation assembly includes a translation slide plate slidable in the left and right directions and arranged in the clamping inner cavity, and a translation slide plate arranged on the right side of the translation slide plate The two clamping cross bars on the side, the upper and lower ends of the translation slide are respectively provided with sliding plugs that are plugged and matched with corresponding transverse slots; the clamping assembly is arranged corresponding to the clamping chamber, and each clamping chamber is respectively provided with two clamping assemblies, one above and one below, the clamping assembly comprises a clamping mandrel arranged on the inner wall of the clamping chamber, a limiting sliding hole arranged in the clamping mandrel, the clamping assembly also comprises a clamping base block, a clamping through hole formed in the clamping base block and plugged and matched with the clamping mandrel, a limiting plug strip arranged in the clamping through hole and plugged and matched with the limiting sliding hole, a clamping compression spring arranged in the clamping through hole and abutting against the limiting plug strip, a pair of clamping assemblies are driven away from each other by the corresponding clamping compression springs, and the clamping mandrel is also provided with a pressure-bearing inclined groove that is plugged and matched with the clamping cross bar;

[0008] The operating assembly is arranged in a fixed shell to drive the clamping assembly to realize the clamping action. The operating assembly includes a worm wheel body rotatably arranged in the inner cavity of the worm wheel, and a worm body rotatably arranged in the worm through hole and meshing with the worm wheel body. An internal threaded hole is also formed in the worm wheel body along the axial direction, and an external threaded rod is screwed on the left and right sides of the internal threaded hole respectively. The external threaded rod on the left side passes through the left hole of the inner cavity and is fixedly connected to the corresponding translation slide plate. The external threaded rod on the right side passes through the right opening and rotates the opening to abut against the corresponding translation slide plate. The external threaded rod on the right side is also provided with a rotation-stopping longitudinal hole cooperating with the rotation-stopping longitudinal rod.

[0009] Furthermore, the inner wall of the conical circular groove is evenly distributed with mounting holes in the circumferential direction, the outer wall of the conical end is evenly distributed with threaded sockets corresponding to the mounting holes in the circumferential direction, and the conical circular groove and the conical end are fixed by bolts.

[0010] Furthermore, the pressure-bearing inclined groove moves toward the central axis direction of the fixed shell when being squeezed by the clamping cross bar.

[0011] Furthermore, the end surface of the clamping base block close to the steel cable is inclined.

[0012] Beneficial effects:

[0013] The clamp described in this case can simultaneously clamp and fix two steel cables through two steel cable holes, which is convenient for arranging a mesh-like steel cable layout. The relative angle of the two steel cables can also be adjusted to adapt to different building exterior walls: the bolts fixing the angle between the conical end and the conical circular groove are removed, and then the rotating housing is twisted to rotate relative to the fixed housing, so that the mounting through hole and the threaded plug hole are aligned again, and then fixed again by bolts.

[0014] The clamp described in this case can also clamp two steel cables synchronously and is suitable for steel cables of different diameters. It is easy to operate and only requires rotating the worm body: rotating the worm body drives the worm wheel body to rotate, the internal threaded hole drives the external threaded rod to move in the left and right directions, the external threaded rod drives the corresponding translation assembly to move, and the clamping cross bar squeezes the corresponding pressure-bearing inclined groove so that the clamping assembly clamps the steel cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the installation of the clamp and the prestressed steel cable.

[0016] Figure 2 Schematic diagram of an embodiment of the clamp.

[0017] Figure 3 Schematic diagram of another embodiment of the clamp.

[0018] Figure 4 Schematic diagram of an embodiment of the fixed housing.

[0019] Figure 5 It is a schematic diagram of an embodiment of the rotating housing.

[0020] Figure 6 It is a front view of an embodiment of the clamp.

[0021] Figure 7 is a cross-sectional view of an embodiment of the clamp.

[0022] Figure 8 It is a cross-sectional view of another embodiment of the clamp.

[0023] Fig. 9 It is a cross-sectional view of an embodiment of the housing assembly.

[0024] Fig.10 yes Figure 7 A cross-sectional view of an embodiment of section AA.

[0025] Fig.11 yes Figure 7 A cross-sectional view of an embodiment of the BB section.

[0026] In the figure:

[0027] 1. Shell assembly;

[0028] 11. Fixed housing, 111. Fixed foundation, 112. Fixed base, 113. Conical end, 114. Worm wheel inner cavity, 115. Left hole of inner cavity, 116. Worm through hole, 117. Right opening, 118. Anti-rotation longitudinal rod;

[0029] 12. Rotating housing, 121. Rotating base, 122. Conical circular groove, 123. Rotating opening;

[0030] 2. Steel cable perforation;

[0031] 3. Clamping assembly;

[0032] 31. Clamping chamber, 311. Clamping inner cavity, 312. Horizontal slot;

[0033] 32. Translation assembly, 321. Translation slide, 322. Clamping crossbar, 323. Sliding plug;

[0034] 33. Clamping assembly, 331. Clamping mandrel, 332. Limiting sliding hole, 333. Clamping base block, 334. Clamping through hole, 335. Limiting insert, 336. Clamping compression spring, 337. Pressure inclined groove;

[0035] 4. operating assembly, 41. worm wheel body, 42. worm body, 43. internal threaded hole, 44. external threaded rod, 45. anti-rotation longitudinal hole;

[0036] 5. Tightrope

[0037] 6. Clamp. DETAILED DESCRIPTION

[0038] A clamp suitable for prestressed steel cables, comprising a housing assembly 1, a steel cable perforation 2, a clamping assembly 3, and an operating assembly 4;

[0039] The housing assembly 1 comprises a fixed housing 11 fixedly connected to the building outer wall, and a rotating housing 12 detachably arranged on the fixed housing 11; the fixed housing 11 comprises a fixed foundation 111 arranged in the left-right direction, a fixed base 112 arranged on the left side of the fixed foundation 111 for fixedly connecting to the building outer wall, a tapered end 113 arranged on the right side of the fixed foundation 111 and gradually narrowing from left to right, a worm gear inner cavity 114 arranged on the right side of the inner cavity of the fixed foundation 111, an inner cavity left hole 115 arranged on the left side of the worm gear inner cavity 114, a worm through hole 116 arranged to penetrate the fixed foundation 111 in the front-back direction, a right side opening 117 arranged on the right side of the worm gear inner cavity 114, and a rotation-stopping longitudinal rod 118 arranged in the right side opening 117, and the worm through hole 116 is arranged to communicate with the worm gear inner cavity 114;

[0040] The rotating housing 12 includes a rotating base 121 arranged along the left-right direction, a conical circular groove 122 arranged on the left side of the rotating base 121 and matched with the conical end 113, and a rotating opening 123 formed on the left side of the rotating base 121;

[0041] There are two steel cable through holes 2, one steel cable through hole 2 is provided in each of the fixed housing 11 and the rotating housing 12, and the steel cable through holes 2 are used to pass the steel cable 5;

[0042] The clamping assembly 3 is provided with two, one clamping assembly is provided in each of the fixed housing 11 and the rotating housing 12, and the clamping assembly 3 is used to clamp the steel cable 5 in the corresponding steel cable through hole 2; the clamping assembly 3 includes a clamping chamber 31, a translation assembly 32, and a clamping assembly 33; the clamping chamber 31 includes a clamping inner cavity 311 provided in the fixed housing 11 or the rotating housing 12 at a position corresponding to the steel cable through hole 2, and the upper end surface and the lower end surface of the clamping inner cavity 311 are respectively provided with a Along the horizontal slot 312 in the left and right directions, the two clamping chambers 31 are axially symmetrically distributed, the clamping chamber 31 on the left is connected to the left hole 115 of the inner cavity, and the clamping chamber 31 on the right is connected to the rotating opening 123; the translation assembly 32 corresponds to the clamping chamber 31 one by one, and the translation assembly 32 includes a translation slide 321 slidable in the left and right directions and arranged in the clamping inner cavity 311, and two clamping cross bars 32 arranged on the right side of the translation slide 321. 2. The upper and lower ends of the translation slide 321 are respectively provided with sliding plugs 323 that are plugged into the corresponding transverse slots 312; the clamping assembly 33 is arranged corresponding to the clamping chamber 31, and each clamping chamber 31 is respectively provided with two clamping assemblies 33, one upper and one lower, the clamping assembly 33 includes a clamping mandrel 331 arranged on the inner wall of the clamping chamber 31, a limiting sliding hole 332 arranged in the clamping mandrel 331, and the clamping assembly 33 also includes a clamping base block 333 , a clamping through hole 334 formed in the clamping base block 333 and plugged into the clamping core shaft 331, a limiting insert 335 arranged in the clamping through hole 334 and plugged into the limiting sliding hole 332, and a clamping compression spring 336 arranged in the clamping through hole 334 and abutting against the limiting insert 335. The pair of clamping components 33 are driven away from each other by the corresponding clamping compression springs 336. The clamping core shaft 331 is also provided with a pressure inclined groove 337 plugged into the clamping cross bar 322;

[0043] The operating assembly 4 is arranged in the fixed shell 11, and is used to drive the clamping assembly 3 to realize the clamping action. The operating assembly 4 includes a worm wheel body 41 rotatably arranged in the worm wheel inner cavity 114, and a worm body 42 rotatably arranged in the worm through hole 116 and meshing with the worm wheel body 41. The worm wheel body 41 is also formed with an internal threaded hole 43 along the axial direction, and an external threaded rod 44 is screwed on the left and right sides of the internal threaded hole 43 respectively. The external threaded rod 44 on the left side passes through the left hole 115 of the inner cavity and is fixedly connected to the corresponding translation slide 321. The external threaded rod 44 on the right side passes through the right opening 117 and the rotating opening 123 and then abuts against the corresponding translation slide 321. The external threaded rod 44 on the right side is also provided with a rotation-stopping longitudinal hole 45 that cooperates with the rotation-stopping longitudinal rod 118.

[0044] Furthermore, the inner wall of the conical circular groove 122 is evenly distributed with mounting holes in the circumferential direction, and the outer wall of the conical end 113 is evenly distributed with threaded holes corresponding to the mounting holes in the circumferential direction, and the conical circular groove 122 and the conical end 113 are fixed by bolts.

[0045] Furthermore, the pressure-bearing inclined groove 337 moves toward the central axis direction of the fixed housing 11 when being squeezed by the clamping cross bar 322 .

[0046] Furthermore, the end surface of the clamping base block 333 close to the steel cable 5 is inclined.

[0047] The clamp 6 described in this case is used to clamp and fix the steel cables 5 of the building's outer wall. Each clamp 6 can be threaded with two steel cables, one in the warp and the other in the weft, at the same time.

[0048] A clamp 6 described in this case can adjust the relative angles of the two steel cable holes 2 to adapt to different steel cable layouts:

[0049] The bolts fixing the angle between the tapered end 113 and the tapered circular groove 122 are removed, and then the rotating housing 12 is twisted to rotate relative to the fixed housing 11 so that the mounting through hole and the threaded socket are aligned again, and then fixed again by bolts.

[0050] A clamp 6 described in this case can also adapt to steel cables of different thicknesses:

[0051] The worm body 42 is rotated to drive the worm wheel body 41 to rotate, and the internal threaded hole 43 drives the external threaded rod 44 to move in the left and right direction;

[0052] The external threaded rod 44 on the left side directly drives the translation assembly 32 to move leftward, and the clamping cross bar 322 squeezes the corresponding pressure-bearing inclined groove 337 so that the clamping assemblies 33 overcome the damping of the clamping compression spring 336 and move closer to each other, thereby clamping the steel cable 5 in the fixed housing 11;

[0053] The external threaded rod 44 and the anti-rotation longitudinal hole 45 on the right side move to the right, thereby driving the corresponding translation assembly 32 to move to the right. The clamping cross bar 322 squeezes the corresponding pressure-bearing inclined groove 337 so that the corresponding clamping assemblies 33 are close to each other, clamping the steel cable in the rotating shell 12.

[0054] It should be noted that the external threaded rod 44 on the right side and the translation assembly 32 adopt abutting contact rather than fixed contact, which facilitates the disassembly and angle adjustment of the rotating housing 12 from the fixed housing 11.

Claims

1. A clamp suitable for prestressed steel cables, characterized in that: It comprises a housing assembly (1), a steel cable perforation (2), a clamping assembly (3), and an operating assembly (4); The housing assembly (1) comprises a fixed housing (11) fixedly connected to the exterior wall of the building, and a rotating housing (12) detachably arranged on the fixed housing (11); The steel cable through holes (2) are provided with two, and the fixed housing (11) and the rotating housing (12) are respectively provided with a steel cable through hole (2), and the steel cable through holes (2) are used to pass the steel cable (5); The clamping assemblies (3) are provided in two pieces, one clamping assembly being provided in each of the fixed housing (11) and the rotating housing (12), and the clamping assemblies (3) are used to clamp the steel cables (5) in the corresponding steel cable holes (2); The operating assembly (4) is disposed in the fixed housing (11) and is used to drive the clamping assembly (3) to achieve a clamping action; The fixed housing (11) comprises a fixed foundation (111) arranged in the left-right direction, a fixed base (112) arranged on the left side of the fixed foundation (111) for fixed connection with the building outer wall, a tapered end (113) arranged on the right side of the fixed foundation (111) and gradually narrowing from left to right, a worm wheel inner cavity (114) arranged on the right side of the inner cavity of the fixed foundation (111), an inner cavity left hole (115) arranged on the left side of the worm wheel inner cavity (114), a worm through hole (116) arranged to pass through the fixed foundation (111) in the front-back direction, a right side opening (117) arranged on the right side of the worm wheel inner cavity (114), and a rotation-stopping longitudinal rod (118) arranged in the right side opening (117), wherein the worm through hole (116) is arranged to communicate with the worm wheel inner cavity (114); The rotating housing (12) comprises a rotating base (121) arranged along the left-right direction, a tapered circular groove (122) arranged on the left side of the rotating base (121) and cooperating with the tapered end (113), and a rotating opening (123) formed on the left side of the rotating base (121); The clamping assembly (3) comprises a clamping chamber (31), a translation assembly (32), and a clamping assembly (33); The clamping chamber (31) comprises a clamping inner cavity (311) provided in the fixed outer shell (11) or the rotating outer shell (12) at a position corresponding to the steel cable through hole (2), and the upper end surface and the lower end surface of the clamping inner cavity (311) are respectively provided with a horizontal slot (312) along the left and right directions, and the two clamping chambers (31) are axially symmetrically distributed, the clamping chamber (31) located on the left side is connected to the inner cavity left hole (115), and the clamping chamber (31) located on the right side is connected to the rotating opening (123); The translation assembly (32) corresponds to the clamping chamber (31) one by one, and comprises a translation slide (321) slidable in the left-right direction and arranged in the clamping inner chamber (311), two clamping cross bars (322) arranged on the right side of the translation slide (321), and the upper and lower ends of the translation slide (321) are respectively provided with sliding plugs (323) that are plugged into and matched with corresponding transverse slots (312); The clamping assembly (33) is arranged corresponding to the clamping chamber (31), and each clamping chamber (31) is provided with two clamping assemblies (33) one above and one below, respectively. The clamping assembly (33) comprises a clamping mandrel (331) arranged on the inner wall of the clamping chamber (31), and a limiting sliding hole (332) arranged in the clamping mandrel (331). The clamping assembly (33) also comprises a clamping base block (333), and a clamping member (332) formed in the clamping base block (333) and connected to the clamping mandrel (331). A clamping through hole (334) for plugging and matching, a limiting insert strip (335) provided in the clamping through hole (334) and plugging and matching with the limiting sliding hole (332), a clamping compression spring (336) provided in the clamping through hole (334) and abutting against the limiting insert strip (335), a pair of clamping assemblies (33) moving away from each other under the drive of the corresponding clamping compression springs (336), and a pressure-bearing inclined groove (337) plugging and matching with the clamping cross bar (322) is also provided on the clamping core shaft (331); The operating assembly (4) comprises a worm wheel body (41) rotatably arranged in the worm wheel inner cavity (114), and a worm body (42) rotatably arranged in the worm through hole (116) and meshing with the worm wheel body (41). An internal threaded hole (43) is also formed in the worm wheel body (41) along the axial direction. An external threaded rod (44) is screwed to the left and right sides of the internal threaded hole (43). The external threaded rod (44) on the left side passes through the left hole (115) of the inner cavity and is fixedly connected to the corresponding translation slide (321). The external threaded rod (44) on the right side passes through the right opening (117) and rotates through the opening (123) to abut against the corresponding translation slide (321). The external threaded rod (44) on the right side is also provided with a rotation-stopping longitudinal hole (45) that cooperates with the rotation-stopping longitudinal rod (118).

2. A clamp suitable for prestressed steel cables according to claim 1, characterized in that: The inner wall of the conical circular groove (122) is uniformly distributed with mounting through holes in the circumferential direction, and the outer wall of the conical end (113) is uniformly distributed with threaded insertion holes corresponding one to one to the mounting through holes in the circumferential direction, and the conical circular groove (122) and the conical end (113) are fixed by bolts.

3. A clamp suitable for prestressed steel cables according to claim 2, characterized in that: The pressure-bearing inclined groove (337) moves toward the central axis direction of the fixed housing (11) when being squeezed by the clamping cross bar (322).

4. A clamp suitable for prestressed steel cables according to claim 3, characterized in that: The end surface of the clamping base block (333) close to the steel cable (5) is inclined.

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