Temporary protection device for expansion joint

Abstract

This utility model relates to the field of building construction, and in particular to a temporary protective device for expansion joints. It includes an integrally formed cover plate and feet located on both sides of the cover plate. An elastic telescopic rod is provided inside each foot. Vertical plates, corresponding to the feet, are located on both sides below the cover plate. The bottom of each vertical plate protrudes downwards from the bottom of the foot. The telescopic part of the elastic telescopic rod extends out of the foot and is fixed to the vertical plate on the same side. The elastic telescopic rod also pulls the vertical plate back towards the foot. The advantage is that this temporary protective device uses a bottom telescopic rod, allowing the cover plate to remain fixed and its width to be as large as possible to accommodate most expansion joint widths. The bottom part inserted into the expansion joint can be adjusted according to the joint width, making it more versatile. Furthermore, since the inserted part is controlled by the elastic telescopic rod, the rod can expand and contract according to the joint width when the expansion joint deforms, making the temporary protective device more practical.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a temporary protective device for expansion joints. Background Technology

[0002] Expansion joints are permanent gaps installed at appropriate locations along the length of buildings or structures to prevent cracks or damage caused by thermal expansion and contraction due to temperature changes. However, during building construction, before the surface cover plate is installed, the expansion joint is exposed, inevitably posing risks such as affecting worker safety and allowing construction debris to fall into the joint. Therefore, temporary protective devices are used to temporarily seal the expansion joint.

[0003] Current temporary protective devices, as shown in patent 202022760547.5, include two L-shaped feet and a cover plate. During installation, the feet are installed on both sides of the expansion joint, and then the cover plate is placed on top to complete the installation. However, this solution has the following drawbacks:

[0004] 1. The width of expansion joints varies under different working conditions. Temporary protective devices are generally reusable. When using the above solution to deal with different joint widths, the cover plate may not be able to fit tightly between the two bases.

[0005] 2. In the initial period after the completion of construction, the deformation of the expansion joint is the greatest (caused by the temperature strain of the concrete itself and the settlement deformation of the building). If the cover plate is tightly fitted between the two bases at the beginning, after the expansion joint deforms, there may be situations where the cover plate lifts up due to the narrowing of the joint or cannot be fitted due to the widening of the joint.

[0006] Therefore, this case is brought. Utility Model Content

[0007] The purpose of this invention is to provide a temporary protective device for expansion joints to adapt to changes in the width of building expansion joints.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A temporary protective device for expansion joints includes an integrally formed cover plate and seats located on both sides of the cover plate. An elastic telescopic rod is provided inside the seat. Vertical plates corresponding to the seats are provided on both sides below the cover plate. The bottom of the vertical plates protrudes downward from the bottom of the seats. The telescopic part of the elastic telescopic rod extends out of the seat and is fixed to the vertical plate on the same side. The elastic telescopic rod pulls the vertical plate back towards the side of the seat.

[0010] Furthermore, the portion of the vertical plate that protrudes downward from the seat foot is provided with several wheels facing the seat foot side, and one of the wheels protrudes from the bottom end of the vertical plate.

[0011] Furthermore, the elastic telescopic rod includes an inner rod, a spring, and an outer tube. The outer tube has an opening end near the seam on the side closest to the vertical plate. The inner rod is disposed inside the outer tube. One end of the inner rod extends out of the opening end near the seam and is fixed to the vertical plate. The other end of the inner rod is provided with a spring seat. The spring is sleeved on the inner rod and disposed between the inner rod spring seat and the opening end near the seam.

[0012] Furthermore, the outer tube has a far-slit side opening end on the side away from the vertical plate, and the inner wall of the outer tube has internal threads. An end cap is threadedly connected inside the outer tube between the inner rod spring seat and the far-slit side opening end. The spring seat of the inner rod abuts against the end cap under the action of the spring. The seat foot has an adjustment hole communicating with the far-slit side opening end, and the end cap has a groove on the side facing the adjustment hole to facilitate screw-tightening adjustment.

[0013] Furthermore, the top surface of the seat is a sloping surface that connects to the top surface of the cover plate.

[0014] Furthermore, the top surface of the cover plate is provided with a recessed counterweight groove and a sealing plate for closing the counterweight groove.

[0015] Furthermore, the enclosed plate is threaded with a cylindrical handle.

[0016] Furthermore, the sloping surface of the base and the top surface of the cover plate are both provided with anti-slip textures.

[0017] The advantages of this utility model are:

[0018] 1. A temporary protective device with a bottom telescopic rod is adopted. The cover plate is fixed and its width can be made as large as possible to meet the needs of most expansion joints. The bottom part that inserts into the expansion joint can be adjusted with the joint width, making it more versatile. At the same time, since the insertion part is controlled by the elastic telescopic rod, the elastic telescopic rod can expand and contract according to the joint width when the expansion joint deforms, making the temporary protective device more practical.

[0019] 2. A counterweight groove is provided inside the cover plate to increase the weight of the temporary protective device, so that the temporary protective device can be firmly stuck in the gap and avoid being easily moved by external force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the temporary protective device in the embodiment;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the flexible telescopic rod;

[0022] Figure 3 This is a schematic diagram showing the state of the temporary protective device before adjustment and before insertion into the expansion joint in the embodiment.

[0023] Figure 4 This is a schematic diagram showing the state of the temporary protective device after adjustment and before it is inserted into the expansion joint in the embodiment.

[0024] Figure 5 This is a schematic diagram showing the state of the temporary protective device after adjustment and insertion into the expansion joint in the embodiment.

[0025] Figure 6 This is a schematic diagram showing the state of the temporary protective device after it is inserted into the expansion joint and the counterweight is adjusted in the embodiment.

[0026] Figure 7 This is a schematic diagram illustrating the usage status of the temporary protective device in the embodiment;

[0027] Label Explanation

[0028] 1-Cover plate, 101-Counterweight groove, 102-Sealing plate, 103-Columnar handle;

[0029] 2-Seat foot, 201-Sloping surface, 202-Adjustment hole;

[0030] 3-Elastic telescopic rod, 301-Inner rod, 302-Spring, 303-Outer tube, 304-Near seam side opening end, 305-Far seam side opening end, 306-Spring seat, 307-End cap;

[0031] 4-Vertical plate, 401-Wheel;

[0032] 5-Expansion joint. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0034] This embodiment proposes a temporary protective device for expansion joints, such as... Figure 1As shown, the structure includes an integrally formed cover plate 1 and bases 2 located on the left and right sides of the cover plate 1. The width of the cover plate 1 can be made as wide as possible according to the geology of a certain region (such as East China or South China) and building characteristics to meet the width requirements of most expansion joints. An elastic telescopic rod 3 is provided inside the base 2. Vertical plates 4, corresponding one-to-one with the base 2, are provided on both sides below the cover plate 1. The bottom of the vertical plate 4 protrudes downwards from the bottom of the base 2. The telescopic part of the elastic telescopic rod 3 extends horizontally out of the base 2 and is fixed to the vertical plate 4 on the same side. The elastic telescopic rod 3 pulls the vertical plate 4 back towards the side of the base 2 where it is located.

[0035] like Figure 2 As shown, the elastic telescopic rod 3 includes an inner rod 301, a spring 302, and an outer tube 303. The outer tube 303 has a near-slit side opening end 304 on the side near the vertical plate 4. The inner rod 301 is disposed inside the outer tube 303. One end of the inner rod 301 extends out of the near-slit side opening end 304 and is fixed to the vertical plate 4. The other end of the inner rod 301 is provided with a spring seat 306. The spring 302 is sleeved on the inner rod 301 and disposed between the inner rod spring seat 306 and the near-slit side opening end 304. The outer tube 303 has a far-slit side opening end 305 on the side away from the vertical plate 4. The inner wall of the outer tube 303 has internal threads. An end cap 307 is threadedly connected between the inner rod spring seat 306 and the far-slit side opening end 305 inside the outer tube 303. The inner rod spring seat 306 abuts against the end cap 307 under the action of the spring 302. The seat 2 has an adjustment hole 202 communicating with the far-slit side opening end 305. The end cap 307 has a slot on the side facing the adjustment hole 202 to facilitate screw-in adjustment, such as a cross slot, a slotted slot, or an internal hex slot.

[0036] The procedure for using this temporary expansion joint protection device is as follows:

[0037] like Figure 3 As shown, the temporary protective device for the expansion joint is moved above the expansion joint 5. At this time, it can be seen that the initial distance between the two vertical plates 4 is greater than the width of the expansion joint 5. The worker inserts a screwdriver into the adjustment hole 202 and screws the end cap 307. The movement of the end cap 307 causes the vertical plate 4 to move towards the expansion joint 5 through the inner rod 301.

[0038] like Figure 4 As shown, after adjustment, the distance between the two vertical plates 4 is reduced to slightly less than the width of the expansion joint 5. Preferably, the portion of the vertical plate 4 protruding downwards from the base 2 is provided with several wheels 401 facing the base 2, and one of the wheels 401 protrudes from the bottom end of the vertical plate 4. Through the wheel 401, when the distance between the vertical plates 4 is reduced, it can be reduced to... Figure 4The position where wheel 401 makes slight contact with the boundary of expansion joint 5 is shown. In this way, when vertical plate 4 moves down, the distance between vertical plates 4 can continue to decrease through wheel 401, and wheel 401 can be close to the joint wall, so that the contact force between vertical plate 4 and joint wall is maximized; one of the wheels 401 protrudes from the bottom end of vertical plate 4, which makes it convenient for workers to observe whether the position of vertical plate 4 is correct after adjustment, and whether the boundary of joint will get stuck on wheel 401 after vertical plate 4 moves down;

[0039] like Figure 5 As shown, the vertical plate 4 moves downward into place, the left and right side feet 2 are placed on both sides of the seam, and the cover plate 1 is located directly above the seam; as shown Figure 6 As shown, preferably, the top surface of the cover plate 1 is provided with a recessed counterweight groove 101 and a closing plate 102 for closing the counterweight groove 101. The closing plate 102 is threadedly connected to a cylindrical handle 103. The cylindrical handle 103 makes it convenient for workers to lift the closing plate 102. Then, stones, gravel, or other heavy objects can be put into the counterweight groove 101 to increase the weight of the temporary protective device for the expansion joint and prevent it from being easily moved by external forces. After filling, the closing plate 102 is covered, and then the cylindrical handle 103 is removed by screwing.

[0040] like Figure 7 As shown, the temporary protective device for the expansion joint has been installed at this point.

[0041] As a preferred option, the top surface of the base 2 is a sloping surface 201 that connects to the top surface of the cover plate 1, which facilitates temporary protective devices for expansion joints of mobile trolleys such as dump trucks. At the same time, anti-slip textures are provided on the sloping surface 201 of the base 2 and the top surface of the cover plate 1.

[0042] The above embodiments are only used to explain the concept of the present invention, and are not intended to limit the protection of the present invention. Any non-substantial modifications made to the present invention using this concept should fall within the protection scope of the present invention.

Claims

1. A temporary joint protection device, characterized in that, It includes an integrally formed cover plate and seats located on both sides of the cover plate. The seats are provided with elastic telescopic rods. Vertical plates corresponding to the seats are provided on both sides below the cover plate. The bottom of the vertical plates protrudes downward from the bottom of the seats. The telescopic part of the elastic telescopic rod extends out of the seats and is fixed to the vertical plate on the same side. The elastic telescopic rod pulls the vertical plate back towards the side of the seat where it is located.

2. A temporary joint protection device as claimed in claim 1, wherein, The portion of the vertical plate that protrudes downward from the seat foot is provided with several wheels facing the seat foot side, and one of the wheels protrudes from the bottom end of the vertical plate.

3. A temporary joint protection device as claimed in claim 1, wherein, The elastic telescopic rod includes an inner rod, a spring, and an outer tube. The outer tube has an opening end near the seam on the side of the vertical plate. The inner rod is installed inside the outer tube. One end of the inner rod extends out of the opening end near the seam and is fixed to the vertical plate. The other end of the inner rod has a spring seat. The spring is sleeved on the inner rod and is located between the inner rod spring seat and the opening end near the seam.

4. A temporary joint protection device as claimed in claim 3, wherein, The outer tube has a far-slit side opening end on the side away from the vertical plate, and the inner wall of the outer tube has internal threads. An end cap is threadedly connected to the inner rod spring seat and the far-slit side opening end inside the outer tube. The spring seat of the inner rod abuts against the end cap under the action of the spring. The seat foot has an adjustment hole communicating with the far-slit side opening end, and the end cap has a groove on the side facing the adjustment hole to facilitate screw-tightening adjustment.

5. A temporary joint protection device as claimed in claim 1, wherein, The top surface of the base is a sloping surface that connects to the top surface of the cover plate.

6. A temporary joint protection device as claimed in claim 5, wherein, The sloping surface of the base and the top surface of the cover plate are both provided with anti-slip texture.

7. A temporary joint protection device as claimed in claim 1, wherein, The top surface of the cover plate is provided with a recessed counterweight groove and a sealing plate for closing the counterweight groove.

8. A temporary joint protection device as claimed in claim 7, wherein, The closed plate is threaded with a cylindrical handle.

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