Counter-force wall loading hole mounting and fastening device

Abstract

The utility model relates to a reaction wall, in particular to a loading hole mounting and fastening device for the reaction wall. Comprising a fastening screw rod and a stress application sleeve, the stress application sleeve is fixedly connected to the outer end of the fastening screw rod, the fastening screw rod is in threaded connection with an internal thread sleeve, the internal thread sleeve is installed on a pull rod, the pull rod is in a U shape, and an inner vertical rod of the pull rod is lower than an outer vertical rod of the pull rod. The internal thread sleeve is horizontally and fixedly connected to the top end of the outer vertical rod of the pull rod; the inner end of the fastening screw is of a stepped shaft structure, a conical tip is arranged on the shaft head portion of the fastening screw, a base plate is installed on the shaft head portion, and the base plate is provided with a round hole and rotationally connected with the shaft head portion. The device is simple and convenient to operate, high in efficiency and strong in practicability; the flatness of the loading hole of the reaction wall formed by the loading hole embedded part is effectively adjusted by adjusting the flatness of the end plate, the adjusting effect is good, the adjustment is labor-saving, time-saving and efficient, and the construction quality of the loading hole of the reaction wall is improved.

Description

Technical Field

[0001] The utility model relates to a reaction wall, in particular to a reaction wall loading hole mounting and fastening device. Background Art

[0002] The reaction wall is a pseudo-dynamic test facility. Two mutually perpendicular reaction walls can carry out two-dimensional pseudo-dynamic test research on structures and components. If it is necessary to complete the seismic performance test of large-scale building models or full-size components, a large reaction wall must be used as a support. In order to meet the requirements of scientific research, teaching and other tests, the loading holes embedded in the reaction wall have extremely strict requirements for the accuracy control of installation and positioning. The control of the installation quality of the loading holes is the key to ensuring the construction quality of the reaction wall. In the past, the construction of loading holes focused on the adjustment of vertical spacing, while ignoring the impact of lateral displacement on the flatness of the loading hole end plate. Due to the lack of a special flatness adjustment tool for the end plate of the reaction wall loading hole, the surface flatness of the end plate of the reaction wall loading hole is poorly controlled after construction according to the traditional method, and the construction quality cannot be guaranteed. In addition, during the installation of the reaction wall loading hole, the surface flatness of the loading hole end plate needs to be repeatedly calibrated through a single loading hole, which is labor-intensive and time-consuming, and the effect is not ideal. Utility Model Content

[0003] The utility model aims to solve the above-mentioned technical problems, thereby providing a reaction wall loading hole installation and fastening device, which solves the problem that the current construction level only vertically adjusts the positioning of the loading hole embedded parts, but fails to reinforce the lateral position in time, causing lateral displacement of the reaction wall loading hole position.

[0004] The utility model solves the technical problem and adopts the following technical solution:

[0005] A reaction wall loading hole installation and fastening device comprises a fastening screw and a force sleeve, wherein the force sleeve is fixedly connected to the outer end of the fastening screw, the fastening screw is threadedly connected to an internally threaded sleeve, the internally threaded sleeve is installed on a pull rod, the pull rod is U-shaped, the height of the inner vertical rod of the pull rod is lower than the height of the outer vertical rod, and the internally threaded sleeve is horizontally fixedly connected to the top end of the outer vertical rod of the pull rod; the inner end of the fastening screw is a stepped shaft structure, the shaft head of the fastening screw is provided with a cone tip, the shaft head is installed with a pad, the pad is provided with a round hole and is rotatably connected to the shaft head.

[0006] Compared with the prior art, the utility model adopting the above technical solution has the following beneficial effects:

[0007] The operation is simple, convenient, efficient and practical. By adjusting the flatness of the end plate, the flatness of the reaction wall loading hole formed by the loading hole embedded parts can be effectively adjusted. The adjustment effect is good, the adjustment is labor-saving, time-saving and efficient, and the construction quality of the reaction wall loading hole is improved. The construction progress is improved, it can be used repeatedly, and the construction cost is reduced. It is suitable for occasions that require angle adjustment.

[0008] Further, the optimization scheme of the utility model is:

[0009] The axis of the force sleeve is perpendicular to the axis of the fastening screw, and a rotating rod is inserted into the force sleeve.

[0010] The pad is circular or rectangular, and a protrusion is provided on the outer plate surface of the pad, and the circular hole is located in the protrusion.

[0011] The circular hole of the pad is a blind hole structure.

[0012] Hook assemblies are symmetrically arranged on both sides of the horizontal rod of the pull rod, and the hook assembly includes a fixed shaft, a connecting rod, a rotating sleeve and a hook. One end of the fixed shaft is fixedly connected to the horizontal rod through the connecting rod, and the rotating sleeve is sleeved on the fixed shaft. The hook is an inverted L-shape, and the vertical part of the hook is fixedly connected to the rotating sleeve.

[0013] The horizontal parts of the two hooks are connected via a buckle assembly.

[0014] A height adjustment assembly is provided on the top surface of the horizontal rod of the pull rod, and the height adjustment assembly includes a fixed screw, an adjusting sleeve, a movable screw and a support plate. The fixed screw is vertically fixed to the horizontal rod, the adjusting sleeve is threadedly connected to the fixed screw, the movable screw is threadedly connected to the adjusting sleeve, the top end of the movable screw is fixedly connected to a circular support plate, and the rotation direction of the thread of the fixed screw is opposite to that of the movable screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0016] Figure 2 is a schematic diagram of a rotating rod;

[0017] Figure 3 This is a schematic diagram of the installation of the first embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the second embodiment of the present utility model.

[0019] In the figure: pull rod 1; inner vertical rod 1-1; horizontal rod 1-2; outer vertical rod 1-3; internal threaded sleeve 2; fastening screw 3; pad 4; protrusion 4-1; force sleeve 5; rotating rod 6; end plate 7; loading hole embedded part 8; fixing frame 9; vertical channel steel 9-1; horizontal channel steel 9-2; auxiliary channel steel 10; fixed shaft 11; connecting rod 12; rotating sleeve 13; hook 14; fixed screw 15; adjusting sleeve 16; movable screw 17; support plate 18. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Embodiment 1

[0021] See also Figure 1 , Figure 2 The present embodiment provides a reaction wall loading hole installation and fastening device, which is mainly composed of a tie rod 1, an internal threaded sleeve 2, a fastening screw 3, a pad 4 and a force sleeve 5. The tie rod 1 is U-shaped, and the height of the inner vertical rod 1-1 of the tie rod 1 is lower than the height of the outer vertical rod 1-3.

[0022] The top end of the outer vertical rod 1-3 of the pull rod 1 is welded with an internal threaded sleeve 2, the axis of the internal threaded sleeve 2 is arranged horizontally, and the fastening screw 3 is inserted into the internal threaded sleeve 2 and is threadedly connected thereto. The inner end of the fastening screw 3 is a stepped shaft structure, the shaft head of the fastening screw 3 is provided with a cone tip, and a pad 4 is installed on the shaft head. The pad 4 is circular or rectangular, and the outer plate surface of the pad 4 is provided with a protrusion 4-1, and the protrusion 4-1 is provided with a round hole of a blind hole structure, the shaft head of the fastening screw 3 is inserted into the round hole, and the pad 4 is rotatably connected to the shaft head. The outer end of the fastening screw 3 is welded with a force sleeve 5, the axis of the force sleeve 5 is perpendicular to the axis of the fastening screw 3, and a rotating rod 6 is inserted in the force sleeve 5. When the fastening screw 3 is rotated, the rotating rod 6 increases the rotational torque.

[0023] This embodiment is used when ( Figure 3As shown), the loading hole embedded part 8 is placed on the fixing frame 9. The loading hole embedded part 8 is used to form the loading hole of the reaction wall. The loading hole embedded part 8 can be made of steel pipe. The fixing frame 9 is composed of vertical channel steel 9-1 and multi-layer horizontal channel steel 9-2. The two ends of the loading hole embedded part 8 are horizontally placed on the horizontal channel steel 9-2. The two ends of the loading hole embedded part 8 extend out of the vertical channel steel 9-1. The end plates 7 are installed at both ends of the loading hole embedded part 8. After the vertical spacing of the loading hole embedded part 8 is adjusted, the auxiliary channel steel 10 is used to support the end plate 7 of the loading hole embedded part 8, and then the inner vertical rod 1-1 of the pull rod 1 is hooked to the horizontal channel steel 9-2, and the rotating rod 6 is rotated. The fastening screw 3 rotates and moves axially inward, and the pad 4 is against the auxiliary channel steel 10. The loading hole embedded part 8 is fastened together with the auxiliary channel steel 10, thereby preventing the loading hole embedded part 8 from moving horizontally. Then, the next step of welding process can be carried out to weld the loading hole embedded part 8 to the fixing frame 9, thereby avoiding the problem of poor control of the surface flatness of the end plate 7. This embodiment can be used at one end or at both ends in pairs. Embodiment 2

[0024] See also Figure 4 The hook components are symmetrically arranged on both sides of the horizontal rod 1-2 of the pull rod 1. The hook components are mainly composed of a fixed shaft 11, a connecting rod 12, a rotating sleeve 13 and a hook 14. The fixed shaft 11 is parallel to the horizontal rod 1-2. The inner end of the fixed shaft 11 is welded to the horizontal rod 1-2 through the connecting rod 12. The rotating sleeve 13 is sleeved on the fixed shaft 11. The rotating sleeve 13 is rotatably connected to the fixed shaft 11. The hook 14 is inverted L shape, and the vertical part of the hook 14 is welded to the rotating sleeve 13. The horizontal parts of the hooks 14 on both sides are connected by a buckle component (not shown in the figure), and the buckle component is a commercially available finished product.

[0025] A height adjustment assembly is provided on the top surface of the horizontal rod 1-2 of the pull rod 1. The height adjustment assembly is located on the outside of the hook assembly. The height adjustment assembly is mainly composed of a fixed screw 15, an adjusting sleeve 16, a movable screw 17 and a support plate 18. The fixed screw 15 is vertically welded to the horizontal rod 1-2, the adjusting sleeve 16 is threadedly connected to the fixed screw 15, the movable screw 17 is threadedly connected to the upper end of the adjusting sleeve 16, and a circular support plate 18 is welded to the top end of the movable screw 17. The rotation direction of the thread of the fixed screw 15 is opposite to that of the movable screw 17.

[0026] When in use, after the inner vertical rod 1-1 of the pull rod 1 hooks the horizontal channel steel 9-2, the hook 14 of the hook assembly is hooked on the loading hole embedded part 8, and the loading hole embedded part 8 is used to form the loading hole of the reaction wall. The horizontal parts of the hooks 14 on both sides are connected by a buckle assembly to prevent the pull rod 1 from falling. The adjustment sleeve 16 of the rotation adjustment assembly is rotated, and the support plate 18 supports the auxiliary channel steel 10 to adjust the height of the auxiliary channel steel 10, and the rotating rod 6 is rotated to tighten.

[0027] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent structural changes made using the contents of the specification and drawings of the present utility model are included in the scope of rights of the present utility model.

Claims

1. A reaction wall loading hole installation and fastening device, comprising a fastening screw and a force sleeve, wherein the force sleeve is fixedly connected to the outer end of the fastening screw, characterized in that: The fastening screw is threadedly connected with the internal threaded sleeve, the internal threaded sleeve is installed on the pull rod, the pull rod is U-shaped, the height of the inner vertical rod of the pull rod is lower than the height of the outer vertical rod, and the internal threaded sleeve is horizontally fixed to the top of the outer vertical rod of the pull rod; The inner end of the fastening screw is a stepped shaft structure, the shaft head of the fastening screw is provided with a cone tip, the shaft head is installed with a pad, the pad is provided with a round hole and is rotatably connected with the shaft head.

2. The reaction wall loading hole mounting and fastening device according to claim 1, characterized in that: The axis of the force sleeve is perpendicular to the axis of the fastening screw, and a rotating rod is inserted into the force sleeve.

3. The reaction wall loading hole mounting and fastening device according to claim 1 is characterized in that: The pad is circular or rectangular, and a protrusion is provided on the outer plate surface of the pad, and the circular hole is located in the protrusion.

4. The reaction wall loading hole mounting and fastening device according to claim 1, characterized in that: The circular hole of the pad is a blind hole structure.

5. The reaction wall loading hole mounting and fastening device according to claim 1, characterized in that: Hook assemblies are symmetrically arranged on both sides of the horizontal rod of the pull rod, and the hook assembly includes a fixed shaft, a connecting rod, a rotating sleeve and a hook. One end of the fixed shaft is fixedly connected to the horizontal rod through the connecting rod, and the rotating sleeve is sleeved on the fixed shaft. The hook is an inverted L-shape, and the vertical part of the hook is fixedly connected to the rotating sleeve.

6. The reaction wall loading hole mounting and fastening device according to claim 5, characterized in that: The horizontal parts of the two hooks are connected via a buckle assembly.

7. The reaction wall loading hole mounting and fastening device according to claim 1, characterized in that: A height adjustment assembly is provided on the top surface of the horizontal rod of the pull rod, and the height adjustment assembly includes a fixed screw, an adjusting sleeve, a movable screw and a support plate. The fixed screw is vertically fixed to the horizontal rod, the adjusting sleeve is threadedly connected to the fixed screw, the movable screw is threadedly connected to the adjusting sleeve, the top end of the movable screw is fixedly connected to a circular support plate, and the rotation direction of the thread of the fixed screw is opposite to that of the movable screw.

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