Concrete expansion joint embedded part

Abstract

The utility model relates to a concrete expansion joint embedded part, and belongs to the technical field of building construction. Comprising a main C-shaped steel plate part and an auxiliary C-shaped steel plate part, an opening of the main C-shaped steel plate part faces downwards, an opening of the auxiliary C-shaped steel plate part faces upwards, the main C-shaped steel plate part and the auxiliary C-shaped steel plate part are buckled with each other and are connected in a sliding mode, and a first water-swelling water stop strip is arranged between the right side edge of the main C-shaped steel plate part and the left side edge of the auxiliary C-shaped steel plate part in a clamped mode. According to the utility model, the main C-shaped steel plate piece and the auxiliary C-shaped steel plate piece are buckled with each other, and the water swelling strip I and the water swelling strip II are clamped between the main C-shaped steel plate piece and the auxiliary C-shaped steel plate piece. By means of the structure, when concrete deforms, the main C-shaped steel plate piece and the auxiliary C-shaped steel plate piece can be pulled to move in a staggered mode, so that the temperature shrinkage stress of the concrete is effectively released, and irregular cracks are reduced. And the water swelling strip is made of a flexible material, so that the water swelling strip has good telescopic deformation performance and can play a role in stopping water.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially relates to a concrete expansion joint embedded part. BACKGROUND

[0002] Concrete can appear temperature shrinkage crack in the hardening process, and the crack is irregular. Concrete reinforcement can reduce the generation of cracks, but increases the cost, and the construction progress is also influenced to a certain extent. Therefore, in the large-area thin component concrete construction, concrete expansion joints are set to disconnect the concrete blocks, ensure that the concrete has enough expansion space, and ensure that no cracks appear in other parts.

[0003] The current expansion joint technology has embedded wood or foam board, and the concrete is poured and removed after completion, and is filled with asphalt and other materials. The removal of the strip will cause damage to the concrete, the secondary asphalt filling cannot completely achieve the waterproof effect, and the aging of the asphalt directly affects the quality of the roof. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a concrete expansion joint embedded part. The technical scheme of the utility model is as follows:

[0005] A concrete expansion joint embedded part, including main C type steel plate spare and vice C type steel plate spare, the opening of the main C type steel plate spare is arranged downward, the opening of the vice C type steel plate spare is arranged upward, the main C type steel plate spare and vice C type steel plate spare are mutually buckled and are slidably connected between the two, water-swelling stopper one is clamped between the right side of the main C type steel plate spare and the left side of the vice C type steel plate spare, water-swelling stopper two is clamped between the right side of the main C type steel plate spare and the right side of the vice C type steel plate spare, the left side of the main C type steel plate spare is screw-connected with a limiting threaded rod, and the left side of the main C type steel plate spare and the right side of the vice C type steel plate spare are movably connected with anchor rods.

[0006] Optionally, a plurality of T-shaped grooves are formed in the right side end of the main C type steel plate spare, a plurality of T-shaped blocks are fixedly connected to the inner surface of the vice C type steel plate spare, and the plurality of T-shaped blocks are slidably connected in the corresponding T-shaped grooves.

[0007] Optionally, a plurality of through holes are formed in the left side of the main C type steel plate spare, a plurality of short nuts are fixedly connected to the left side of the main C type steel plate spare, the plurality of short nuts correspond to the plurality of through holes, the limiting threaded rod is screw-connected in the short nut, and the right end of the limiting threaded rod penetrates the through hole and extends to the inside of the main C type steel plate spare.

[0008] Optionally, the right end of the limiting screw rod is fixedly connected with a limiting disc, rubber pads are attached to the side of the limiting disc close to the auxiliary C-shaped steel plate, and a hexagonal seat is fixedly connected to the left end of the limiting screw rod.

[0009] Optionally, a mounting hole is formed in the right end face of the limiting screw rod, a spring is fixedly connected inside the mounting hole, and a movable rod is fixedly connected to the right end of the spring and slidably connected with the mounting hole.

[0010] Optionally, the anchor rod has a Y-shaped structure.

[0011] Optionally, long nuts are fixedly connected to the left side of the main C-shaped steel plate and the right side of the auxiliary C-shaped steel plate, and the anchor rod is threadedly connected with the long nuts.

[0012] All the optional technical solutions can be combined arbitrarily, and the structure after combination will not be described in detail.

[0013] By means of the above-mentioned solutions, the present application has the following advantages:

[0014] The main C-shaped steel plate and the auxiliary C-shaped steel plate are buckled with each other, and the water-swelling sealing strips one and two are clamped therebetween. This structure can pull the main C-shaped steel plate and the auxiliary C-shaped steel plate to move in a staggered manner when the concrete deforms, thereby effectively releasing the temperature shrinkage stress of the concrete and reducing the occurrence of irregular cracks. The water-swelling sealing strips are flexible materials and have good stretchability and deformation, and can also play a water-stopping effect. The pre-embedded part is a permanent structure, and does not need to be removed and subjected to additional waterproof treatment during use, thereby avoiding the damage to the concrete caused by the traditional wood strip process during removal and the defects such as unattractive appearance and quality risks that may occur after repair.

[0015] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application and can be implemented according to the content of the specification, the following is a preferred embodiment of the present application and the detailed description of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall appearance structure diagram of the concrete expansion joint pre-embedded part provided by the present application is shown in the figure.

[0017] Figure 2 The overall front view of the concrete expansion joint pre-embedded part provided by the present application is shown in the figure.

[0018] Figure 3 The front view of the concrete expansion joint pre-embedded part provided by the present application is shown in the figure.

[0019] Figure 4 It is the structure schematic view that the main C-shaped steel plate part cooperates with the auxiliary C-shaped steel plate part in the utility model;

[0020] Figure 5 It is the structure schematic view that the main C-shaped steel plate part cooperates with the limiting threaded rod in the utility model;

[0021] Figure 6 It is the structure schematic view that the main C-shaped steel plate part cooperates with the limiting threaded rod in the utility model;

[0022] Figure 7 It is the structure schematic view that the auxiliary C-shaped steel plate part cooperates with the anchor rod in the utility model;

[0023] Figure 8 It is the structure schematic view that the limiting threaded rod, the limiting disc, the rubber pad, the hexagonal seat, the mounting hole, the spring and the movable rod cooperate in the utility model.

[0024] Marked label in drawing: 1, main C-shaped steel plate part;11, T-shaped groove;12, through hole;13, short nut;2, auxiliary C-shaped steel plate part;21, T-shaped block;3, water-swelling waterstop one;4, water-swelling waterstop two;5, limiting threaded rod;51, limiting disc;52, rubber pad;53, hexagonal seat;54, mounting hole;55, spring;56, movable rod;6, anchor rod;61, long nut. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0026] Please refer to Figures 1-8 The utility model provides a kind of concrete expansion joint embedded part, including main C-shaped steel plate part 1 and auxiliary C-shaped steel plate part 2, the opening of main C-shaped steel plate part 1 is set down, the opening of auxiliary C-shaped steel plate part 2 is set up, main C-shaped steel plate part 1 and auxiliary C-shaped steel plate part 2 are mutually buckled and are slidably connected between the two, water-swelling waterstop one 3 is clamped between the right side of main C-shaped steel plate part 1 and the left side of auxiliary C-shaped steel plate part 2, water-swelling waterstop two 4 is clamped between the right side of main C-shaped steel plate part 1 and the right side of auxiliary C-shaped steel plate part 2, limiting threaded rod 5 is threadedly connected to the left side of main C-shaped steel plate part 1, anchor rod 6 is movably connected to the left side of main C-shaped steel plate part 1 and the right side of auxiliary C-shaped steel plate part 2.

[0027] The utility model discloses a main C type steel sheet part 1 and vice C type steel sheet part 2 are mutually buckled, and the intermediate sandwiching water stop strip one 3 and water stop strip two 4 of swelling when meeting water, can reach the effect of not deforming, not leaking, telescopic. In concrete construction, the left side edge outer wall of main C type steel sheet part 1 is poured together with concrete through anchor rod 6, and the right side edge outer wall of vice C type steel sheet part 2 is poured together with concrete through anchor rod 6. When concrete deforms, it will pull main C type steel sheet part 1 and vice C type steel sheet part 2 to move in dislocation, thereby effectively releasing the temperature shrinkage stress of concrete, and reducing the emergence of irregular cracks. And water stop strip of swelling when meeting water is flexible material, has good telescopic deformation, can also play the effect of water stop. The embedded part belongs to permanent structure, does not need to carry out dismantling and do additional waterproof treatment in the use process, avoids the damage caused to concrete in the dismantling process of traditional batten technology and the defects such as the possible unattractive and quality hidden danger after repair.

[0028] Specifically, main C type steel sheet part 1 and vice C type steel sheet part 2 all adopt 3mm thick galvanized steel sheet, which can ensure excellent corrosion resistance and long service life.

[0029] Further, a plurality of T-shaped grooves 11 are formed in the right side lower end of main C type steel sheet part 1, and a plurality of T-shaped blocks 21 are fixedly connected to the inner surface of vice C type steel sheet part 2, and the plurality of T-shaped blocks 21 are respectively slidably connected inside the corresponding T-shaped grooves 11.

[0030] Specifically, when main C type steel sheet part 1 and vice C type steel sheet part 2 slide relative to each other, the T-shaped blocks 21 will slide inside the T-shaped grooves 11, and the T-shaped grooves 11 limit and guide the T-shaped blocks 21, which can prevent main C type steel sheet part 1 and vice C type steel sheet part 2 from being separated during sliding.

[0031] Further, a plurality of through holes 12 are formed in the left side of main C type steel sheet part 1, a plurality of short nuts 13 are fixedly connected to the left side of main C type steel sheet part 1, and the plurality of short nuts 13 correspond to the plurality of through holes 12 one by one, a limiting threaded rod 5 is threadedly connected inside the short nut 13, and the right end of the limiting threaded rod 5 penetrates through the through hole 12 and extends into the inside of main C type steel sheet part 1.

[0032] Specifically, the limiting threaded rod 5 is used to limit the sliding displacement between main C type steel sheet part 1 and vice C type steel sheet part 2, which ensures that the two can maintain a fixed positional relationship during work. At the same time, it can prevent the T-shaped blocks 21 from sliding out of the T-shaped grooves 11, thereby ensuring the stability and safety of the entire structure.

[0033] Further, a limiting disc 51 is fixedly connected to the right end outside of the limiting threaded rod 5, a rubber pad 52 is bonded to the side of the limiting disc 51 close to vice C type steel sheet part 2, and a hexagonal seat 53 is fixedly connected to the left end of the limiting threaded rod 5.

[0034] Specifically, the rotation of the limiting threaded rod 5 is controlled by rotating the hexagonal seat 53, thereby indirectly adjusting the sliding distance between the main C-shaped steel plate 1 and the auxiliary C-shaped steel plate 2. This structure makes the adjustment process simpler and more convenient, improving the flexibility and accuracy of the operation. When the sliding between the main C-shaped steel plate 1 and the auxiliary C-shaped steel plate 2 reaches the maximum limit, the side of the limiting disc 51 close to the auxiliary C-shaped steel plate 2 will be in contact with the auxiliary C-shaped steel plate 2 through the rubber pad 52, which can effectively avoid friction between the limiting disc 51 and the auxiliary C-shaped steel plate 2, reducing wear between them.

[0035] Further, the right end face of the limiting threaded rod 5 is provided with a mounting hole 54, and the inside of the mounting hole 54 is fixedly connected with a spring 55. The right end of the spring 55 is fixedly connected with a movable rod 56, and the movable rod 56 is slidingly connected with the mounting hole 54.

[0036] Specifically, under the elastic force of the spring 55, the right end of the movable rod 56 will always abut against the left side of the auxiliary C-shaped steel plate 2. When the concrete deforms, it will pull the dislocation movement between the main C-shaped steel plate 1 and the auxiliary C-shaped steel plate 2. At this time, the movable rod 56 slides inside the mounting hole 54, and the spring 55 will be deformed to adapt to the relative displacement change between the movable rod 56 and the mounting hole 54. This structure not only effectively relieves the structural stress caused by the deformation of the concrete, but also maintains the reliability of the limiting function through the elastic action of the spring 55.

[0037] Further, the anchor rod 6 is in Y-shaped structure.

[0038] Specifically, when pouring concrete, the anchor rod 6 is poured inside the concrete. Its Y-shaped structure can effectively increase the contact area between the anchor rod 6 and the concrete, thereby improving the bonding strength between the two. The branch design of the Y-shaped structure enables the anchor rod 6 to form more cross points and support surfaces in the concrete, enhancing the pullout resistance and shear resistance of the anchor rod 6, and reducing the risk of slipping or loosening caused by external load or environmental changes.

[0039] Further, the left side of the main C-shaped steel plate 1 and the right side of the auxiliary C-shaped steel plate 2 are fixedly connected with a long nut 61, and the anchor rod 6 is threadedly connected with the long nut 61.

[0040] Specifically, when installing the embedded part, the operator only needs to simply threadedly connect the anchor rod 6 with the long nut 61, and the fixing can be completed. This simple and convenient operation process greatly reduces the installation time and improves the construction efficiency.

[0041] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be considered as the protection scope of the present application.

Claims

1. A pre-embedded component for concrete expansion joints, characterized in that: It includes a main C-shaped steel plate (1) and a secondary C-shaped steel plate (2). The opening of the main C-shaped steel plate (1) is set downward, and the opening of the secondary C-shaped steel plate (2) is set upward. The main C-shaped steel plate (1) and the secondary C-shaped steel plate (2) are interlocked and slidably connected. A water-swellable waterstop strip 1 (3) is sandwiched between the right side of the main C-shaped steel plate (1) and the left side of the secondary C-shaped steel plate (2). A water-swellable waterstop strip 2 (4) is sandwiched between the right side of the main C-shaped steel plate (1) and the right side of the secondary C-shaped steel plate (2). A limit thread rod (5) is threadedly connected to the left side of the main C-shaped steel plate (1). An anchor rod (6) is movably connected to both the left side of the main C-shaped steel plate (1) and the right side of the secondary C-shaped steel plate (2).

2. The concrete expansion joint embedded part according to claim 1, characterized in that, The lower right side of the main C-shaped steel plate (1) has multiple sets of T-slots (11), and the inner surface of the secondary C-shaped steel plate (2) is fixedly connected to multiple sets of T-blocks (21). The multiple sets of T-blocks (21) are slidably connected inside the T-slots (11) at the corresponding positions.

3. A concrete expansion joint embedded part according to claim 2, characterized in that, The left side of the main C-shaped steel plate (1) has multiple sets of through holes (12). The left side of the main C-shaped steel plate (1) is fixedly connected to multiple sets of short nuts (13), and the multiple sets of short nuts (13) correspond one-to-one with the multiple sets of through holes (12). The limiting threaded rod (5) is threaded inside the short nuts (13). The right end of the limiting threaded rod (5) passes through the through hole (12) and extends into the interior of the main C-shaped steel plate (1).

4. A concrete expansion joint embedded part according to claim 3, characterized in that, A limiting disc (51) is fixedly connected to the outer side of the right end of the limiting threaded rod (5). A rubber pad (52) is glued to the side of the limiting disc (51) near the secondary C-shaped steel plate (2). A hexagonal seat (53) is fixedly connected to the left end of the limiting threaded rod (5).

5. A concrete expansion joint embedded part according to claim 4, characterized in that, The right end face of the limiting threaded rod (5) is provided with a mounting hole (54), and a spring (55) is fixedly connected inside the mounting hole (54). A movable rod (56) is fixedly connected to the right end of the spring (55), and the movable rod (56) is slidably connected to the mounting hole (54).

6. A concrete expansion joint embedded part according to claim 1, characterized in that, The anchor rod (6) has a Y-shaped structure.

7. A concrete expansion joint embedded part according to claim 1 or 6, characterized in that, The left side of the main C-shaped steel plate (1) and the right side of the auxiliary C-shaped steel plate (2) are both fixedly connected with long nuts (61), and the anchor rod (6) is threadedly connected to the long nuts (61).

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