Vertical prestressed tendon positioning device

Abstract

The utility model discloses a vertical prestressed tendon positioning device, which relates to the technical field of building construction and comprises a support unit, a positioning unit, an adjusting unit and a clamping unit. The adjusting unit comprises a bidirectional lead screw movably arranged in the support unit and two side fixing plates movably arranged at the top of the support unit. The clamping unit comprises a movable plate movably arranged at the top of the side fixing plate and a positioning clamping rod fixedly connected to the bottom of the movable plate and used for clamping the positioning unit. According to the vertical prestressed tendon positioning device, the distance between the two positioning plates can be adjusted by adjusting the distance between the two side fixing plates, so that steel bars can be conveniently arranged in a penetrating mode, a bundled steel reinforcement cage can be conveniently taken down, stress tendons can be conveniently positioned and installed, the bundling efficiency of the steel reinforcement cage is improved, and the labor intensity of workers is reduced. And the positioning plates can be conveniently and rapidly installed in a clamping and fixing mode, the positioning plates of different sizes can be conveniently detached and replaced according to requirements, and the steel reinforcement cages of different sizes can be conveniently bundled.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a vertical prestressed tendon positioning device. Background Art

[0002] In construction projects, the most common design form of large-span continuous beams is the box beam structure. The webs of the box beams are designed with vertical prestressed tendons. Generally, high-quality rolled threaded steel bars and seamless steel pipes are used as the vertical prestressed system. The vertical prestressed tendons need to be processed in advance and embedded in the web steel bars. During construction, the high-quality rolled threaded steel bars need to be accurately positioned and protected from damage.

[0003] The existing stress tendon positioning device can only bundle steel cages of one size separately, and cannot replace positioning structures of different sizes as needed. In addition, the disassembly and assembly of the prestressed tendons is troublesome, time-consuming and labor-intensive. Therefore, it is necessary to provide a vertical prestressed tendon positioning device. Utility Model Content

[0004] The main purpose of the utility model is to provide a vertical prestressed tendon positioning device, which can effectively solve the problems that the existing stress tendon positioning device in the background technology can only bundle steel cages of one size separately, cannot replace positioning structures of different sizes according to needs, and is troublesome, time-consuming and labor-intensive to disassemble and assemble the prestressed tendons.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a vertical prestressed tendon positioning device, including a support unit, and a positioning unit arranged above the support unit, and also including an adjustment unit arranged on the top of the support unit and a fixing unit arranged on the top of the adjustment unit;

[0006] The adjustment unit includes a bidirectional screw rod movably arranged inside the support unit, and two side fixing plates movably arranged on the top of the support unit;

[0007] The clamping unit comprises a movable plate movably arranged on the top of the side fixing plate, and a positioning clamping rod fixedly connected to the bottom of the movable plate and used for clamping the positioning unit.

[0008] Preferably, the support unit includes a support seat, a sliding groove formed on the top of the support seat, and an inner sliding groove formed on the inner wall of the sliding groove.

[0009] Preferably, the positioning unit includes a positioning plate arranged on the inner side of the side fixing plate, a plurality of positioning holes opened on one side of the positioning plate, a mounting block fixedly connected to the center of one side of the positioning plate, and a clamping hole opened on the top of the mounting block.

[0010] Preferably, the adjustment unit also includes an adjustment shaft fixedly connected to one end of the bidirectional screw, two threaded blocks threadedly connected to the outer surface of the bidirectional screw, a sliding block fixedly connected to the bottom of the threaded block, a spring groove opened inside the top end of the side fixing plate, and a positioning groove opened on the inner side of the side fixing plate.

[0011] Preferably, the fixing unit further comprises a limit plate fixedly connected to the outer surface of the positioning clamp rod, a return spring sleeved on the outer surface of the positioning clamp rod, and an upper pull ring fixedly connected to the top of the movable plate.

[0012] Preferably, the bottom of the sliding block is movably arranged inside the inner slide groove, there are two side fixing plates, and they are symmetrically distributed around the axial center of the support seat, the bottom end of the side fixing plate is fixedly connected to the top of the threaded block, and the internal dimensions of the positioning groove are adapted to the external dimensions of the mounting block.

[0013] Preferably, the positioning rod is inserted into the spring slot, the outer diameter of the positioning rod is matched with the inner diameter of the hole, and the return spring is fixedly connected between the top of the limiting plate and the top wall of the spring slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The two side fixing plates are then separated from each other by rotating the adjusting shaft, so that the two side fixing plates are in a horizontal state.

[0016] 2. In the utility model, the mounting block on one side of the positioning plate is inserted into the positioning groove of the side fixing plate. Before that, the movable plate is pulled up by the upper pull ring. The rising of the movable plate drives the positioning clamp rod to rise. The rising of the positioning clamp rod drives the limit plate to rise inside the spring groove. The rising of the limit plate compresses the reset spring on the outer surface of the positioning clamp rod. When the mounting block is completely inserted into the interior of the positioning groove, the restraint on the upper pull ring is released, and the reset spring loses its force and elastically recovers to push the positioning clamp rod down into the interior of the clamping hole of the mounting block, thereby completing the installation of the positioning plate. This structure facilitates the rapid installation of the positioning plate by clamping, and is convenient for disassembling and replacing positioning plates of different sizes according to needs, and is convenient for bundling of steel cages of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0020] Figure 4 For this utility model Figure 1 Enlarged structural diagram at point C in the middle.

[0021] In the figure:

[0022] 100, support unit; 101, support seat; 102, sliding groove; 103, inner sliding groove;

[0023] 200, positioning unit; 201, positioning plate; 202, positioning hole; 203, mounting block; 204, clamping hole;

[0024] 300, adjustment unit; 301, bidirectional screw rod; 302, adjustment shaft; 303, threaded block; 304, sliding block; 305, side fixing plate; 306, spring groove; 307, positioning groove;

[0025] 400, fixing unit; 401, movable plate; 402, positioning rod; 403, limiting plate; 404, return spring; 405, upper pull ring. DETAILED DESCRIPTION

[0026] Example 1

[0027] Please refer to Figure 1 — Figure 4As shown, the utility model is a vertical prestressed tendon positioning device, including a support unit 100, and a positioning unit 200 arranged above the support unit 100, and also includes an adjustment unit 300 arranged on the top of the support unit 100 and a fixing unit 400 arranged on the top of the adjustment unit 300;

[0028] The fixing unit 400 includes a movable plate 401 movably disposed on the top of the side fixing plate 305 , and a positioning clamping rod 402 fixedly connected to the bottom of the movable plate 401 for fixing the positioning unit 200 .

[0029] The support unit 100 includes a support base 101 , a sliding groove 102 formed on the top of the support base 101 , and an inner sliding groove 103 formed on the inner wall of the sliding groove 102 .

[0030] The positioning unit 200 includes a positioning plate 201 arranged on the inner side of the side fixing plate 305, a plurality of positioning holes 202 opened on one side of the positioning plate 201, a mounting block 203 fixedly connected to the center of one side of the positioning plate 201, and a clamping hole 204 opened on the top of the mounting block 203.

[0031] like Figure 1 — Figure 3 As shown, the adjustment unit 300 includes a bidirectional screw rod 301 movably arranged inside the support unit 100, and two side fixing plates 305 movably arranged on the top of the support unit 100. The adjustment unit 300 also includes an adjustment shaft 302 fixedly connected to one end of the bidirectional screw rod 301, two threaded blocks 303 threadedly connected to the outer surface of the bidirectional screw rod 301, a sliding block 304 fixedly connected to the bottom of the threaded block 303, a spring groove 306 opened inside the top end of the side fixing plate 305, and a positioning groove 307 opened on the inner side of the side fixing plate 305. The bottom of the sliding block 304 is movably arranged inside the inner slide groove 103. There are two side fixing plates 305, which are symmetrically distributed around the axial center of the support seat 101. The bottom end of the side fixing plate 305 is fixedly connected to the top of the threaded block 303. The inner size of the positioning groove 307 is adapted to the outer size of the mounting block 203.

[0032] Working principle: First, the steel bar is inserted into the inside of the positioning hole 202 of the positioning plate 201 on one side, and several steel bars are inserted into the inside of the positioning hole 202 in turn, so that the steel bar is in a horizontal state, and then the adjusting shaft 302 is rotated, and the adjusting shaft 302 drives the two-way screw rod 301 to rotate inside the sliding groove 102. The rotation of the two-way screw rod 301 drives the two threaded blocks 303 to move closer to each other on their outer surfaces. The two threaded blocks 303 that are close to each other drive the two side fixing plates 305 to move on the top of the support seat 101 and move closer to each other, so that the other end of the steel bar is inserted into the positioning hole 202. It is assumed that the inside of the positioning hole 202 of the positioning plate 201 on the other side is entered, and then the steel cage is bundled. After the steel bars are completely bundled, the two side fixing plates 305 can be separated by rotating the adjustment shaft 302 in the opposite direction, so that the two positioning plates 201 are separated from each other, and the bundled steel cage is removed. This structure can adjust the distance between the two positioning plates 201 by adjusting the distance between the two side fixing plates 305, so as to facilitate the insertion of the steel bars and the removal of the bundled steel cage, facilitate the positioning and installation of the prestressed tendons, and improve the bundling efficiency of the steel cage.

[0033] Example 2

[0034] Please refer to Figure 1 — Figure 4 As shown, the utility model is a vertical prestressed tendon positioning device, including a support unit 100, and a positioning unit 200 arranged above the support unit 100, and also includes an adjustment unit 300 arranged on the top of the support unit 100 and a fixing unit 400 arranged on the top of the adjustment unit 300;

[0035] The adjustment unit 300 includes a bidirectional screw rod 301 movably disposed inside the support unit 100 , and two side fixing plates 305 movably disposed on the top of the support unit 100 .

[0036] The support unit 100 includes a support base 101 , a sliding groove 102 formed on the top of the support base 101 , and an inner sliding groove 103 formed on the inner wall of the sliding groove 102 .

[0037] The positioning unit 200 includes a positioning plate 201 arranged on the inner side of the side fixing plate 305, a plurality of positioning holes 202 opened on one side of the positioning plate 201, a mounting block 203 fixedly connected to the center of one side of the positioning plate 201, and a clamping hole 204 opened on the top of the mounting block 203.

[0038] like Figure 1 and Figure 4As shown, the fixing unit 400 includes a movable plate 401 movably arranged on the top of the side fixing plate 305, and a positioning rod 402 fixedly connected to the bottom of the movable plate 401 for fixing the positioning unit 200. The fixing unit 400 also includes a limit plate 403 fixedly connected to the outer surface of the positioning rod 402, a return spring 404 sleeved on the outer surface of the positioning rod 402, and an upper pull ring 405 fixedly connected to the top of the movable plate 401. The positioning rod 402 is inserted into the inside of the spring groove 306. The outer diameter of the positioning rod 402 is compatible with the inner diameter of the clamping hole 204. The return spring 404 is fixedly connected between the top of the limit plate 403 and the top wall of the spring groove 306.

[0039] Working principle: by inserting the mounting block 203 on one side of the positioning plate 201 into the positioning groove 307 of the side fixing plate 305, before that, the movable plate 401 is pulled up by the upper pull ring 405, and the rising of the movable plate 401 drives the positioning clamping rod 402 to rise, and the rising of the positioning clamping rod 402 drives the limit plate 403 to rise inside the spring groove 306, and the rising of the limit plate 403 compresses the return spring 404 on the outer surface of the positioning clamping rod 402. When the mounting block 203 is completely inserted into the interior of the positioning groove 307, the restraint on the upper pull ring 405 is released, and the return spring 404 loses its force and elastically recovers to push the positioning clamping rod 402 down into the interior of the clamping hole 204 of the mounting block 203, thereby completing the installation of the positioning plate 201. This structure facilitates the rapid installation of the positioning plate 201 through the clamping method, and is convenient for disassembling and replacing positioning plates 201 of different sizes according to needs, and is convenient for bundling steel cages of different sizes.

Claims

1. A vertical prestressed tendon positioning device, comprising a support unit (100) and a positioning unit (200) arranged above the support unit (100), characterized in that: It also includes an adjustment unit (300) arranged on the top of the support unit (100) and a fixing unit (400) arranged on the top of the adjustment unit (300); The adjustment unit (300) comprises a bidirectional screw rod (301) movably arranged inside the support unit (100), and two side fixing plates (305) movably arranged on the top of the support unit (100); The fixing unit (400) comprises a movable plate (401) movably arranged on the top of the side fixing plate (305), and a positioning clamping rod (402) fixedly connected to the bottom of the movable plate (401) and used for fixing the positioning unit (200).

2. A vertical prestressed tendon positioning device according to claim 1, characterized in that: The support unit (100) comprises a support seat (101), a sliding groove (102) provided on the top of the support seat (101), and an inner sliding groove (103) provided on the inner wall surface of the sliding groove (102).

3. A vertical prestressed tendon positioning device according to claim 2, characterized in that: The positioning unit (200) comprises a positioning plate (201) arranged on the inner side of a side fixing plate (305), a plurality of positioning holes (202) provided on one side of the positioning plate (201), a mounting block (203) fixedly connected to the center of one side of the positioning plate (201), and a clamping hole (204) provided on the top of the mounting block (203).

4. A vertical prestressed tendon positioning device according to claim 3, characterized in that: The adjustment unit (300) further comprises an adjustment shaft (302) fixedly connected to one end of the bidirectional screw rod (301), two threaded blocks (303) threadedly connected to the outer surface of the bidirectional screw rod (301), a sliding block (304) fixedly connected to the bottom of the threaded block (303), a spring groove (306) provided inside the top end of the side fixing plate (305), and a positioning groove (307) provided inside the side fixing plate (305).

5. A vertical prestressed tendon positioning device according to claim 4, characterized in that: The fixing unit (400) further comprises a limit plate (403) fixedly connected to the outer surface of the positioning rod (402), a return spring (404) sleeved on the outer surface of the positioning rod (402), and an upper pull ring (405) fixedly connected to the top of the movable plate (401).

6. A vertical prestressed tendon positioning device according to claim 5, characterized in that: The bottom of the sliding block (304) is movably arranged inside the inner slide groove (103), there are two side fixing plates (305), which are symmetrically distributed at the axial center of the support seat (101), the bottom end of the side fixing plate (305) is fixedly connected to the top of the threaded block (303), and the internal dimensions of the positioning groove (307) are adapted to the external dimensions of the mounting block (203).

7. A vertical prestressed tendon positioning device according to claim 6, characterized in that: The positioning rod (402) is inserted into the spring groove (306), the outer diameter of the positioning rod (402) is matched with the inner diameter of the hole (204), and the return spring (404) is fixedly connected between the top of the limiting plate (403) and the top wall of the spring groove (306).

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