Beam column formwork clamping and fixing device based on lead screw driving

Abstract

The utility model relates to a beam column template clamping and fixing device based on screw rod driving, which comprises a fixed rod, a telescopic rod and a screw rod, clamping plates are vertically arranged at the end parts of the fixed rod and the telescopic rod, the telescopic rod is sleeved in the fixed rod in a sliding manner, a nut seat is fixedly arranged in the telescopic rod, a rotary support is arranged at the outer end of the fixed rod, and a screw rod is arranged on the rotary support. The screw rod is coaxially installed between the nut seat and the rotating support, a hexagonal head is arranged at the outer end of the screw rod and extends out of the outer end face of the fixed rod, and the fixed rod and the telescopic rod are both square barrel rods; according to the device, a hexagonal head at the outer end of a lead screw extends out of the outer end of a fixed rod, an electric wrench can be conveniently in butt joint with the hexagonal head to drive the lead screw to rotate, the lead screw drives a telescopic rod to slide in the fixed rod through a nut seat, and two clamping plates move oppositely to be clamped between formworks; and the template can be supported and reinforced by holding the device with the other hand, so that the template reinforcing work can be completed with high efficiency and high quality.

Description

Technical Field

[0001] The utility model relates to the field of building construction tools, in particular to a beam-column template clamping and fixing device based on screw rod drive. Background Art

[0002] During the construction of frame beams and frame columns, a formwork system needs to be built first. This formwork system is a temporary formwork structure used to support and cast beams or columns during construction. It is usually made of wood or steel to ensure the accurate shape and size of beams or columns. During the construction process, the formwork can help construction workers complete the casting of beams or columns quickly and efficiently.

[0003] After the formwork of the frame beam and frame column is installed, a support reinforcement structure needs to be set between the side formwork and the bottom formwork to ensure that the formwork has sufficient stability and support strength to avoid the phenomenon of expansion of the formwork after pouring concrete into the cavity, which affects the construction quality. The current method is mainly to set square timber outside the formwork and tighten and fix the formwork by connecting tension bolts between the square timbers. This support reinforcement method has a low cost, but during the installation and construction process, various components need to be coordinated for docking, and then the nuts are manually tightened with a wrench to achieve tightening and fixing. The operation is cumbersome and the construction efficiency is low, which needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a beam-column formwork clamping and fixing device based on screw rod drive.

[0005] The technical solution of the utility model is:

[0006] A beam-column formwork clamping and fixing device based on screw rod drive comprises a fixed rod, a telescopic rod and a screw rod. Clamps are vertically arranged at the ends of the fixed rod and the telescopic rod. The height of the clamps is set according to the size of the formwork, and a detachable structure can be set between the clamps and the fixed rod or the telescopic rod to facilitate replacement of clamps of different sizes. The telescopic rod is slidably sleeved in the fixed rod, a nut seat is fixedly installed inside the telescopic rod, a fixed connecting plate is provided at the outer end of the nut seat, a rotating support is provided at the outer end of the fixed rod, the screw rod is coaxially installed between the nut seat and the rotating support, and a hexagonal head is provided at the outer end of the screw rod, and the hexagonal head extends out of the outer end face of the fixed rod.

[0007] Preferably, the fixed rod and the telescopic rod are both square tube rods.

[0008] Preferably, the rotating support includes a square seat body and a square end plate, a circular groove is provided in the middle of the seat body, a limit column matching and sleeved in the circular groove is provided between the hexagonal head of the screw rod and the rod body, the limit column can rotate freely in the circular groove, the end plate is fixedly connected to the port of the seat body, the edge of the end plate is fixedly connected to the outer port of the fixed rod, the end plate is connected to the fixed rod by welding, and a circular oil filling port corresponding to the edge of the circular groove is provided in the middle of the end portion.

[0009] Preferably, a long hole is provided in the middle of the side wall of the fixing rod along its length direction, and the long hole extends to the two ends of the fixing rod. A stud extending from the long hole is vertically provided at the inner end of the telescopic rod, and a nut and a gasket are provided at the outer end of the stud.

[0010] Preferably, a reinforcing plate is provided in the middle of the outer side surface of the clamping plate, the reinforcing plate is a right-angled trapezoidal structure, and the lower end of the reinforcing plate is fixedly connected to the outer surface of the fixed rod or the telescopic rod.

[0011] Preferably, a plurality of convex ribs with triangular cross sections are evenly distributed on the inner side surface of the splint, and the convex ribs extend to both ends of the splint.

[0012] Preferably, the nut seat is sleeved in a square support block, and the square support block is fixedly connected in the telescopic rod.

[0013] Preferably, both ends of the telescopic rod are provided with closing plates, and a through hole corresponding to the position of the screw rod is provided in the middle of the closing plate at the inner end.

[0014] Beneficial technical effects of the utility model:

[0015] ⑴ In this device, the hexagonal head at the outer end of the screw rod extends out of the outer end of the fixed rod. An electric wrench can be used to easily connect with the hexagonal head to drive the screw rod to rotate. The screw rod drives the telescopic rod to slide in the fixed rod through the nut seat, so that the two clamps move toward each other and are clamped between the templates. The device integrates various components into one. The construction worker can support and reinforce the template by holding the electric wrench in one hand and the device in the other hand, and can complete the template reinforcement work efficiently and with high quality.

[0016] ⑵ During the extension and retraction process of the telescopic rod of the device, the stud can slide along the long hole. After the splint clamps the template, the stud can be tightened by rotating the nut to lock the telescopic rod and the fixed rod, which serves as an auxiliary locking mechanism for the screw rod and the nut seat to ensure that the device has sufficient supporting strength for the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model in the state of being installed and used on a template;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 yes Figure 2 AA section structural diagram;

[0020] Figure 4 yes Figure 3 BB-direction cross-sectional structural diagram;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the telescopic rod and the screw rod of the utility model.

[0022] In the figure, 01. clamping device, 11. fixing rod, 12. telescopic rod, 13. splint, 131. reinforcing plate, 132. convex rib, 14. screw, 141. hexagonal head, 142. limiting column, 15. nut seat, 16. square support block, 171. seat body, 172. end plate, 173. circular groove, 181. long hole, 182. stud, 183. nut, 201. template, 202. square wood, 203. steel bar, 204. electric wrench, 205. hexagonal socket, 301. oil filling port. DETAILED DESCRIPTION

[0023] Example 1, see the attached specification Figure 1-5 A beam-column formwork 201 clamping and fixing device 01 driven by a screw rod 14 comprises a fixed rod 11, a telescopic rod 12 and a screw rod 14. The fixed rod 11 and the telescopic rod 12 are both square tube rods, which play a circumferential limit role to prevent the fixed rod 11 from rotating relative to the telescopic rod 12. The ends of the fixed rod 11 and the telescopic rod 12 are vertically provided with a clamping plate 13. The telescopic rod 12 is slidably sleeved in the fixed rod 11. A nut seat 15 is fixedly installed inside the telescopic rod 12. The rotating screw rod 14 can pass through the nut seat 15. The telescopic rod 12 is pulled or pushed to slide, and the screw rod 14 and the nut seat 15 have a self-locking function. After the position of the telescopic rod 12 is adjusted, it can be automatically locked. The outer end of the fixed rod 11 is provided with a rotating support. The screw rod 14 is coaxially installed between the nut seat 15 and the rotating support. The outer end of the screw rod 14 is provided with a hexagonal head 141, and the hexagonal head 141 extends out of the outer end surface of the fixed rod 11. The electric wrench 204 can quickly dock with the hexagonal head 141 to drive the screw rod 14 to rotate at a high speed to pull the telescopic rod 12 to slide.

[0024] like Figure 3As shown, the rotating support includes a seat body 171 and an end plate 172. A circular groove 173 is provided in the middle of the seat body 171. A limiting column 142 matchingly mounted in the circular groove 173 is provided between the hexagonal head 141 of the screw rod 14 and the rod body. The end plate 172 is fixedly connected to the port of the seat body 171. The edge of the end plate 172 is fixedly connected to the outer port of the fixed rod 11. When the screw rod 14 is rotated, the circular limiting column 142 will rotate in the circular groove 173 to provide axial limitation for the screw rod 14. The position of the screw rod 14 remains unchanged when rotating, and the nut seat 15 and the telescopic rod 12 are pulled to slide in the fixed rod 11. A circular oil filling port 301 corresponding to the edge of the circular groove 173 is provided in the middle of the end plate 172, and lubricating oil is injected into the space between the limiting column 142 and the circular groove 173 through the oil filling port 301.

[0025] A reinforcing plate 131 is provided in the middle of the outer side surface of the splint 13, and the lower end of the reinforcing plate 131 is fixedly connected to the outer surface of the fixed rod 11 or the telescopic rod 12. The reinforcing plate 131 improves the fixed connection strength between the splint 13 and the fixed rod 11 or the telescopic rod 12 to avoid bending and deformation due to frequent use.

[0026] like Figure 2 As shown, the inner side surface of the splint 13 is evenly distributed with a number of convex ribs 132 with triangular cross sections. After these convex ribs 132 come into contact with the square wood 202, they can form a large friction force with the outer side surface of the square wood 202 to ensure the clamping and fixing effect of the splint 13.

[0027] The nut seat 15 is sleeved in the square support block 16, and the square support block 16 is fixedly connected in the telescopic rod 12. The square support block 16 is arranged so that the nut seat 15 is fixedly connected in the telescopic rod 12. Both ends of the telescopic rod 12 are provided with closing plates, and the middle of the closing plate at the inner end is provided with a through hole corresponding to the position of the screw rod 14, and the screw rod 14 passes through the through hole.

[0028] How to use the device:

[0029] Taking the frame beam as an example, after the steel bars 203 are set in the template 201 of the frame beam and the square timber 202 is set on its outer side, the construction worker holds the device in one hand and inserts it from the bottom surface of the template 201 to the outside of the template 201, and holds the electric wrench 204 in the other hand, inserts the hexagonal sleeve 205 on the electric wrench 204 into the hexagonal head 141 at the outer end of the screw rod 14, and then starts the electric wrench 204 to drive the screw rod 14 to rotate. The outer end of the screw rod 14 rotates in the rotating support, and the inner end slides in the fixed rod 11 by pulling the telescopic rod 12 through the nut seat 15. The two clamps 13 move toward each other and clamp on the outer side of the template 201. The fixed rod 11 is supported on the bottom surface of the template 201, and the reinforcement work of the template 201 is completed with high efficiency and high quality.

[0030] Example 2, see the attached specification Figure 2-3 This embodiment is improved on the basis of the first embodiment, except that:

[0031] A long hole 181 is provided in the middle part of the side wall of the fixed rod 11 along its length direction, and a stud 182 extending from the long hole 181 is vertically provided at the inner end of the telescopic rod 12, and a nut 183 and a gasket are provided at the outer end of the stud 182. During the sliding and retracting process of the telescopic rod 12 in the fixed rod 11, the stud 182 slides along the long hole 181. After the two clamping plates 13 clamp the template 201, the stud 182 can be tightened by rotating the nut 183 to lock the telescopic rod 12 and the fixed rod 11, which serves as an auxiliary locking mechanism of the screw rod 14 and the nut seat 15 to ensure that the device has sufficient supporting strength for the template 201.

Claims

1. A beam-column formwork clamping and fixing device based on screw drive, characterized in that: It includes a fixed rod, a telescopic rod and a screw rod. The ends of the fixed rod and the telescopic rod are vertically provided with clamping plates. The telescopic rod is slidably sleeved in the fixed rod. A nut seat is fixedly installed inside the telescopic rod. A rotating support is provided at the outer end of the fixed rod. The screw rod is coaxially installed between the nut seat and the rotating support. A hexagonal head is provided at the outer end of the screw rod, and the hexagonal head extends out of the outer end surface of the fixed rod.

2. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 1 is characterized in that: The fixed rod and the telescopic rod are both square tube rods.

3. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 2 is characterized in that: The rotating support includes a seat body and an end plate. A circular groove is provided in the middle of the seat body. A limiting column matching and sleeved in the circular groove is provided between the hexagonal head of the screw rod and the rod body. The end plate is fixedly connected to the port of the seat body, and the edge of the end plate is fixedly connected to the outer port of the fixed rod.

4. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 2 is characterized in that: A long hole is arranged in the middle of the side wall of the fixing rod along its length direction, a stud extending from the long hole is vertically arranged at the inner end of the telescopic rod, and a nut and a gasket are arranged at the outer end of the stud.

5. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 1 is characterized in that: A reinforcing plate is provided in the middle of the outer side surface of the clamping plate, and the lower end of the reinforcing plate is fixedly connected to the outer surface of the fixing rod or the telescopic rod.

6. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 1 is characterized in that: The inner side surface of the clamping plate is evenly distributed with a plurality of convex ribs with triangular cross sections.

7. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 1 is characterized in that: The nut seat is sleeved in the square support block, and the square support block is fixedly connected in the telescopic rod.

8. The beam-column formwork clamping and fixing device based on screw rod drive according to claim 1 is characterized in that: Both ends of the telescopic rod are provided with closing plates, and the middle of the closing plate at the inner end is provided with a through hole corresponding to the position of the screw rod.

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