A device for regulating the butt joint gap of a laminated slab

Abstract

The utility model discloses a purpose lies in providing a kind of overlap board butt joint gap regulation and control device, belong to building construction technical field, including the bottom plate of L type, the upper portion of bottom plate is equipped with guiding mechanism, the guiding mechanism includes fixed sleeve, the upper portion of bottom plate is welded and installed in fixed sleeve, the inboard of fixed sleeve is slidably installed with sliding frame, the one side of sliding frame is equipped with limit wedge, the side wall of limit wedge and external overlap board is attached. The utility model is guided through being set guiding structure, wherein sliding frame can slide in the inboard of fixed sleeve, limit wedge is moved, limit wedge and the side wall of external already assembled overlap board are attached, so that it can guide overlap board to fall, and the butt joint gap between adjacent overlap board is accurately regulated and controlled, and regulation and control precision is improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a device for adjusting the joint gap of composite slabs. Background Technology

[0002] In building construction, composite slabs, as a type of precast concrete component, are widely used due to their advantages such as high construction efficiency and stable quality. During the installation of composite slabs, controlling the joint gap between adjacent slabs is a crucial step in ensuring construction quality. If the joint gap is too large, it will lead to difficulties in later grouting, affecting the integrity and sealing of the structure; if the gap is too small, stress concentration may occur due to the thermal expansion and contraction of the composite slabs, causing damage to the component.

[0003] Currently, on construction sites, the joint gaps of composite slabs are typically adjusted by manually prying or pushing with simple tools. This method not only has low control precision but is also cumbersome, consuming a lot of manpower and time. Furthermore, it is difficult to guarantee the stability of the gaps, which are prone to change during subsequent construction. Therefore, there is an urgent need for a specialized composite slab joint gap control device to solve the above problems. Utility Model Content

[0004] This invention addresses the problems of cumbersome adjustment operations and low adjustment accuracy in existing composite plate joint gap adjustments by providing a composite plate joint gap control device.

[0005] A joint gap control device for composite slabs includes an L-shaped base plate, a guide mechanism installed on the top of the base plate, the guide mechanism including a fixing sleeve, the fixing sleeve being welded and installed on the top of the base plate, a sliding frame being slidably installed on the inner side of the fixing sleeve, a limiting wedge being installed on one side of the sliding frame, and the limiting wedge being in contact with the side wall of the externally assembled composite slab.

[0006] Furthermore, a clamping plate is installed on the lower wall of the base plate, and a connecting cylinder with internal threads is provided at the connection end between the clamping plate and the base plate. A threaded hole is provided through the upper wall of the base plate, and a bolt is installed in the threaded hole. The bolt is rotatably installed in the connecting cylinder through the threaded hole through the lower wall of the base plate.

[0007] Furthermore, a positioning screw is screwed into the upper wall of the sliding frame, and the positioning screw passes through the lower wall of the sliding frame and fits against the inner wall of the fixed sleeve.

[0008] Furthermore, the limiting wedge includes a top holding plate, which is welded to the side wall of the sliding frame. A wedge is welded to the outer side wall of the top holding plate. The wedge is wider at the top and narrower at the bottom. A reinforcing rib is welded to the other side of the top holding plate, and the other end of the reinforcing rib is welded to the upper wall of the sliding frame.

[0009] Furthermore, the wedge has a placement groove on its side wall, and holes are symmetrically formed on the inner wall of the placement groove. A roller is rotatably installed in the placement groove, and support rods are installed at both ends of the roller, which are rotatably connected to the holes.

[0010] Furthermore, the inner wall of the connecting cylinder is provided with an annular groove, and a connecting ring is provided on the outer side of the lower end of the bolt, the connecting ring being inserted into the annular groove.

[0011] Furthermore, both the base plate and the clamping plate are provided with anti-slip rubber pads on their side walls, and the anti-slip rubber pads are in contact with the externally assembled composite plate.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model, by setting a guide structure, wherein the sliding frame can slide inside the fixed sleeve, driving the limiting wedge to move, and the limiting wedge is in contact with the side wall of the externally assembled composite plate, so that it can guide the composite plate to fall, accurately control the mating gap between adjacent composite plates, and improve the control accuracy. 2. This utility model is pre-installed on the side wall of the composite plate being installed by the cooperation of the base plate and the clamping plate, so that multiple people are not required to cooperate when guiding it to fall, thus saving labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the limiting wedge block of this utility model; Figure 3 This is a schematic diagram of the connecting cylinder of this utility model; Figure 4 This is a schematic diagram of the placement groove of this utility model; Figure 5 This is a schematic diagram illustrating the installation and use of this utility model; Wherein: 1-base plate; 2-guide structure; 21-fixed sleeve; 22-sliding frame; 23-limiting wedge; 3-clamping plate; 4-connecting cylinder; 5-threaded hole; 6-bolt; 7-positioning screw; 8-placement groove; 9-hole; 10-roller; 11-support rod; 12-annular groove; 13-connecting ring; 14-anti-slip rubber pad; 231-top holding plate; 232-wedge; 233-reinforcing rib. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] As shown in the figure, a joint gap control device for composite plates includes a base plate 1 and a guide structure 2. The guide structure 2 is installed above the base plate 1. The guide structure 2 includes a fixed sleeve 21, a sliding frame 22 and a limiting wedge 23. The fixed sleeve 21 is welded and installed above the base plate 1. The sliding frame 22 is slidably installed on the inner side of the fixed sleeve 21. The limiting wedge 23 is installed on the side wall of the sliding frame 22. The limiting wedge 23 can fit against the side wall of the externally assembled composite plate. A clamping plate 3 is installed on the lower wall of the base plate 1, and a connecting cylinder 4 is installed on the upper end of the clamping plate 3. A threaded hole 5 is opened on the upper wall of the base plate 1, and a bolt 6 is screwed into the threaded hole 5. The bolt 6 passes through the threaded hole 5, penetrates the lower wall of the base plate 1, and is inserted into the connecting cylinder 4. The bolt 6 can rotate inside the connecting cylinder 4. In this utility model, the base plate 1 is clamped on the outside of the outer composite plate to be installed by cooperating with the clamping plate 3. The distance between the clamping plate 3 and the base plate 1 can be adjusted by the threaded engagement of the bolt 6 and the threaded hole 5, so that the clamping plate 3 and the base plate 1 can be firmly clamped on the edge of the outer composite plate. The composite panel is lifted by an external crane and moved above the designated installation position. Then it is slowly lowered. During the descent, the limiting wedge 23 will first contact the side wall of the already installed composite panel. Under the guidance of the limiting wedge 23, the accuracy of the spacing between the two composite panels is ensured. After the composite plate is installed, when it is necessary to remove this device, the positioning screw 7 and bolt 6 can be loosened, and then the sliding bracket 22 can be slid towards the fixing sleeve 21, and then the device can be removed from the composite plate.

[0016] In some technical solutions, a positioning screw 7 is screwed into the upper wall of the sliding frame 22, and the positioning screw 7 can penetrate the lower wall of the sliding frame 22 and fit against the inner wall of the fixed sleeve 21.

[0017] The positioning screw 7 serves to fix the position of the sliding frame 22. After the sliding frame 22 slides to a suitable position within the fixed sleeve 21 to adjust the position of the limiting wedge 23 on the butt joint gap of the composite plate, the positioning screw 7 is tightened so that its lower end fits tightly against the inner wall of the fixed sleeve 21. The friction between the two restricts the sliding of the sliding frame 22, preventing the sliding frame 22 from shifting due to external force during the adjustment process, thus ensuring the accuracy of the gap adjustment. Alternatively, a positioning hole can be made above the fixed sleeve 21, so that the positioning bolt 7 can be inserted into the positioning hole, making the position of the sliding bracket 22 more stable.

[0018] In some technical solutions, the limiting wedge 23 includes a top holding plate 231, a wedge 232 and a reinforcing rib 233. The top holding plate 231 is welded to the side wall of the sliding frame 22. The wedge 232 is welded to the outer side wall of the top holding plate 231. The wedge 232 is wider at the top and narrower at the bottom. One end of the reinforcing rib 233 is welded to the side wall of the top holding plate 231, and the other end of the reinforcing rib 233 is welded to the upper wall of the sliding frame 22.

[0019] When the wedge 232, which is wider at the top and narrower at the bottom, is in contact with the side wall of the composite plate, it can push the composite plate to the designated installation position as it gradually falls. The reinforcing rib 233 further strengthens the connection between the top plate 231 and the sliding frame 22, preventing the top plate 231 from deforming under stress and extending the service life of the device.

[0020] In some technical solutions, the side wall of the wedge block 231 is provided with a placement groove 8, the inner wall of the placement groove 8 is provided with a hole 9, a roller 10 is rotatably installed in the placement groove 8, and support rods 11 are installed at both ends of the roller 10, which can be inserted into the hole 9.

[0021] The setting of roller 10 reduces the friction between the limiting wedge 23 and the composite plate. When the wedge 232 contacts the side wall of the composite plate and moves relative to it, roller 10 will rotate as the composite plate falls, converting sliding friction into rolling friction, reducing wear between the two, and making the operation of the device more smooth when adjusting the gap, avoiding damage to the surface of the composite plate or obstruction of adjustment due to excessive friction.

[0022] In some technical solutions, the inner wall of the connecting cylinder 4 is provided with an annular groove 12, and the outer side of the lower end of the bolt 6 is provided with a connecting ring 13, which can be inserted into the annular groove 2.

[0023] After the connecting ring 13 is inserted into the annular groove 12, the bolt 6 can rotate freely in the connecting cylinder 4 to adjust the position of the clamping plate 3, and will not come off the connecting cylinder 4, thus ensuring the stability of the connection between the bolt 6 and the connecting cylinder 4. This ensures that the clamping plate 3 can move up and down stably with the rotation of the bolt 6 during the tightening or loosening of the bolt 6.

[0024] In some technical solutions, anti-slip rubber pads 14 are fitted to the side walls of both the base plate 1 and the clamping plate 3, and the anti-slip rubber pads 14 can be fitted to the outer composite plate.

[0025] When the base plate 1 and the clamping plate 3 clamp the composite plate, the anti-slip rubber pad 14 is in close contact with the surface of the composite plate, which can effectively prevent the device from slipping due to vibration or force during operation.

[0026] Working principle: First, by adjusting the screw depth of the bolt 6 in the threaded hole 5, the clamping plate 3 is moved up and down, so that the base plate 1 and the clamping plate 3 are clamped together in the appropriate position of the outer composite plate, thus completing the fixed installation of the device; Next, the composite slab is lifted by an external crane and moved above the designated installation position. Then it is slowly lowered. During the descent, the limiting wedge 23 will first contact the side wall of the already installed composite slab. Under the guidance of the limiting wedge 23, the accuracy of the spacing between the two composite slabs is ensured, and the gap size is ensured to meet the construction requirements.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for adjusting the gap between butt joints of composite slabs, characterized in that: The base plate (1) is L-shaped. A guide mechanism (2) is installed on the top of the base plate (1). The guide mechanism (2) includes a fixing sleeve (21). The fixing sleeve (21) is welded and installed on the top of the base plate (1). A sliding frame (22) is slidably installed on the inner side of the fixing sleeve (21). A limiting wedge (23) is installed on one side of the sliding frame (22). The limiting wedge (23) is in contact with the side wall of the externally assembled composite plate.

2. The device for adjusting the joint gap of composite plates according to claim 1, characterized in that: A clamping plate (3) is installed on the lower wall of the base plate (1). The clamping plate (3) and the base plate (1) are connected by a connecting cylinder (4) with internal threads. A threaded hole (5) is provided through the upper wall of the base plate (1). A bolt (6) is installed in the threaded hole (5). The bolt (6) passes through the threaded hole (5) and is rotatably installed in the connecting cylinder (4) through the lower wall of the base plate (1).

3. The device for adjusting the joint gap of composite plates according to claim 1, characterized in that: A positioning screw (7) is screwed into the upper wall of the sliding frame (22), and the positioning screw (7) passes through the lower wall of the sliding frame (22) and fits against the inner wall of the fixing sleeve (21).

4. The device for adjusting the joint gap of composite plates according to claim 1, characterized in that: The limiting wedge (23) includes a top holding plate (231), which is welded to the side wall of the sliding frame (22). A wedge (232) is welded to the outer side wall of the top holding plate (231). The wedge (232) is wider at the top and narrower at the bottom. A reinforcing rib (233) is welded to the other side of the top holding plate (231). The other end of the reinforcing rib (233) is welded to the upper wall of the sliding frame (22).

5. The device for adjusting the joint gap of composite plates according to claim 4, characterized in that: The wedge (232) has a placement groove (8) on its side wall, and holes (9) are symmetrically opened on the inner wall of the placement groove (8). A roller (10) is rotatably installed in the placement groove (8), and support rods (11) are installed at both ends of the roller (10). The support rods (11) are rotatably connected in the holes (9).

6. The device for adjusting the joint gap of composite plates according to claim 2, characterized in that: The inner wall of the connecting cylinder (4) is provided with an annular groove (12), and the outer side of the lower end of the bolt (6) is provided with a connecting ring (13), which is inserted into the annular groove (12).

7. The device for adjusting the joint gap of composite plates according to claim 2, characterized in that: The side walls of the base plate (1) and the clamping plate (3) are provided with anti-slip rubber pads (14), which are attached to the externally assembled composite plate.

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