Embedded deformation joint device

Abstract

A pre-embedded type deformation joint device comprises a plurality of base sets arranged in the length direction of a deformation joint, each base set comprises two bases which are symmetrically pre-embedded in structural concrete on the two sides of the deformation joint with the deformation joint as the center, a sliding rod and a water stop belt are sequentially clamped between the two bases arranged oppositely from top to bottom, the bases are each in an L shape, and the sliding rod and the water stop belt are connected through a connecting rod. The top face of the horizontal portion of the base is flush with the top face of structural concrete, the outer side face of the vertical portion of the base is flush with the inner side wall of the deformation joint, a containing groove is formed in the top face of the horizontal portion of the base, the two sides of the center cover plate are supported on the two oppositely-arranged base containing grooves, the center cover plate seals the deformation joint, the center cover plate is connected with the sliding rod, and the sliding rod is connected with the structural concrete. And the central cover plate and the base are fixed. The deformation joint device can solve the problems that a traditional deformation joint device is long in construction procedure and low in efficiency, and construction quality is difficult to guarantee.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a pre-embedded deformation joint device. Background Art

[0002] In the traditional expansion joint device construction process, it is usually necessary to reserve or cut a specific placement groove in the structure for the base of the expansion joint device to be fixed by bolts. Therefore, the expansion joint device has high requirements on the width, depth and flatness of the placement groove. Any slight deviation may affect the installation quality of the expansion joint device, or even make the expansion joint device unable to be installed. In actual construction, it is often necessary to square the placement groove twice to ensure the construction quality of the expansion joint device. It can be seen that the traditional expansion joint device construction process is lengthy and difficult to construct. Utility Model Content

[0003] The utility model solves the deficiencies of the prior art and provides a pre-buried deformation joint device which improves construction efficiency and construction quality.

[0004] In order to achieve the above-mentioned purpose, the utility model firstly proposes a pre-embedded expansion joint device, comprising a plurality of base groups arranged along the length direction of the expansion joint, each base group comprises two bases symmetrically pre-embedded in the structural concrete on both sides of the expansion joint with the expansion joint as the center, and a sliding rod and a water stop strip are sequentially clamped between the two oppositely arranged bases from top to bottom, and the base is L-shaped.

[0005] The top surface of the horizontal part of the base is flush with the top surface of the structural concrete, the outer side surface of the vertical part of the base is flush with the inner wall of the deformation joint, and a placement groove is arranged on the top surface of the horizontal part of the base. The two sides of the center cover plate are supported on two base placement grooves arranged oppositely. The center cover plate closes the deformation joint, and the center cover plate is connected to the sliding rod to fix the center cover plate and the base.

[0006] In this embodiment, the slide rod is provided with a first screw hole, the center cover is provided with a second screw hole matching the position of the first screw hole, and the center cover and the slide rod are connected and fixed to each other by screws in the first screw hole and the second screw hole.

[0007] In this embodiment, the depth of the placement groove on the top surface of the base matches the thickness of the center cover plate. After the two sides of the center cover plate are supported in the two base placement grooves, the top surface of the center cover plate is flush with the top surface of the structural concrete.

[0008] In this embodiment, the horizontal portion of the base is fixedly connected to one end of the anchor bar, and the other end of the anchor bar is welded to the structural steel bar in the structural concrete.

[0009] In this embodiment, the first and second slots are arranged in sequence from top to bottom on the outer surface of the vertical portion of the base, the first and second slots extend along the length direction of the deformation joint and are arranged parallel to the deformation joint, the first and second slots are T-slots, the T-slot includes a slide and an opening connecting the slide with the deformation joint, the width of the opening is smaller than the width of the slide, the diameter of the slide bar is smaller than the width of the T-slot opening, both ends of the slide bar are provided with sliders matching the size of the slide, the slide bar is slidably installed in the slide through the slider, the thickness of the water stop is smaller than the width of the T-slot opening, both ends of the water stop are provided with conical elastic clips matching the slide, and the two ends of the water stop are inserted into the slide from the T-slot opening through the conical elastic clip. Due to its own elasticity, the conical elastic clip can be squeezed and inserted into the slide from the smaller T-slot opening, and the conical elastic clip restores its shape after being inserted into the slide, forming a cone larger than the opening width of the T-slot, so that the two ends of the water stop are clamped and locked in the slide.

[0010] In this embodiment, an entry slot is further provided on the vertical portion of the base, the top of the entry slot is provided with an inlet connected to the base placement slot, the bottom is provided with an outlet connected to the first card slot, and the entry slot is larger than the size of the slider on the slide bar. In this way, the sliders at both ends of the slide bar can enter the first card slot through the entry slot, thereby facilitating the connection between the slide bar and the first card slot.

[0011] With the above structure, during the construction process, the base is first pre-buried in the structural concrete and poured with it at one time to ensure the accurate position and firm connection of the base. After the concrete hardens, insert the tapered elastic clips at both ends of the waterstop into the second slot next to the deformation joint to fix the waterstop. Next, place the sliders at both ends of the slide rod into the first slot, and use the sliders to move the slide rod to the specified position in the first slot. Finally, install the center cover plate, and place its two sides in the placement slots of the base, and use bolts to firmly connect the center cover plate to the slide rod.

[0012] The utility model uses a pre-embedded method to form the base and concrete at one time, eliminating the construction of the placement groove and the base installation steps in the traditional deformation joint device. The use of anchor bars not only achieves accurate positioning of the base, but also enhances its stability. At the same time, the first and second slots are provided to facilitate the subsequent installation of the slide bar and the water stop, reducing the construction steps and improving the construction efficiency. In addition, the mechanical connection method reduces the impact of human factors on the construction quality and ensures the quality of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 A magnified schematic diagram.

[0015] In the attached figure: 1. anchor bar; 2. center cover plate; 3. base; 4. bolt; 5. slide bar; 6. water stop; 7. first slot; 8. second slot; 9. structural concrete; 10. entry slot. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0018] like Figure 1 , Figure 2 As shown, a pre-embedded expansion joint device includes a plurality of base groups arranged along the length direction of the expansion joint, each base group includes two bases 3 symmetrically embedded in the structural concrete 9 on both sides of the expansion joint with the expansion joint as the center, and a sliding rod 5 and a water stop 6 are sequentially installed between the two oppositely arranged bases 3 from top to bottom, and the base 3 is L-shaped.

[0019] The top surface of the horizontal part of the base 3 is flush with the top surface of the structural concrete 9, and the outer side surface of the vertical part of the base 3 is flush with the inner side wall of the deformation joint. A placement groove is arranged on the top surface of the horizontal part of the base 3. The depth of the placement groove on the top surface of the base 3 matches the thickness of the center cover plate 2. After the two sides of the center cover plate 2 are supported in the placement grooves of the two bases 3, the top surface of the center cover plate 2 is flush with the top surface of the structural concrete 9. The center cover plate 2 closes the deformation joint. The center cover plate 2 is fixed to the base by connecting with the sliding rod. Specifically, a first screw hole is arranged on the sliding rod 5, and a second screw hole matching the position of the first screw hole is arranged on the center cover plate 2. The center cover plate 2 and the sliding rod 5 are connected and fixed to each other by bolts 4 in the first screw hole and the second screw hole through threaded connection.

[0020] The first card slot 7 and the second card slot 8 are arranged in sequence from top to bottom on the outer side surface of the vertical part of the base 3. The first card slot 7 and the second card slot 8 extend along the length direction of the deformation joint and are arranged parallel to the deformation joint. The first card slot 7 and the second card slot 8 are both T-shaped slots. The T-shaped slot includes a slide groove and an opening connecting the slide groove with the deformation joint. The width of the opening is smaller than the width of the slide groove. The diameter of the slide rod 5 is smaller than the width of the T-shaped slot opening. Both ends of the slide rod 5 are provided with sliders matching the size of the slide groove. 5 is slidably installed in the slide groove through the slider, the thickness of the water stop 6 is smaller than the width of the T-slot opening, and both ends of the water stop 6 are provided with conical elastic clips matching the slide groove. The two ends of the water stop 6 are inserted into the slide groove from the T-slot opening through the conical elastic clips. Due to its own elasticity, the conical elastic clip can be squeezed from the smaller T-slot opening into the slide groove. After being inserted into the slide groove, the conical elastic clip restores its shape to form a cone larger than the opening width of the T-slot, so that the two ends of the water stop 6 are clamped and locked in the slide groove.

[0021] Furthermore, an entry groove 10 is further provided on the vertical portion of the base 3, and an inlet connected to the placement groove of the base 3 is provided at the top of the entry groove 10, and an outlet connected to the first card slot 7 is provided at the bottom. The entry groove 10 is larger than the size of the slider on the slide bar 5, so that the sliders at both ends of the slide bar 5 can enter the first card slot 7 through the entry groove 10, thereby facilitating the connection between the slide bar 5 and the first card slot 7;

[0022] During specific pre-embedding, the horizontal part of the base 3 is fixedly connected to one end of the anchor bar 1, and the other end of the anchor bar 1 is welded to the structural steel bar in the structural concrete 9. Furthermore, a hook structure is provided on the end of the anchor bar 1 connected to the structural steel bar in the structural concrete 9. During installation, the structural steel bar is first connected to the hook structure on the anchor bar 1, and then the other end of the anchor bar 1 is welded to the base 3, and finally the hook structure is welded to the structural steel bar.

[0023] The construction steps of this utility model are as follows:

[0024] Before pouring the structural concrete 9 at the deformation joint, the base 3 of the device is first embedded on both sides of the deformation joint, and the anchor bar 1 is welded to the structural steel bar to ensure that the base 3 is stable, accurately positioned, and formed at one time with the concrete pouring. When installing the device, first insert the water stop 6 into the second slot 8, then extend the slide bar 5 into the first slot 7 through the vertical entry slot 10 of the slide bar, and slide it to a suitable position, and finally install the center cover plate 2, and connect and fix the center cover plate 2 to the slide bar 5 through the bolts 4.

[0025] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pre-embedded expansion joint device, characterized in that: It includes multiple groups of base groups arranged along the length direction of the deformation joint, each group of base groups includes two bases symmetrically embedded in the structural concrete on both sides of the deformation joint with the deformation joint as the center, and sliding rods and water stop strips are sequentially clamped between the two oppositely arranged bases from top to bottom, and the base is L-shaped. The top surface of the horizontal part of the base is flush with the top surface of the structural concrete, the outer side surface of the vertical part of the base is flush with the inner wall of the deformation joint, and a placement groove is arranged on the top surface of the horizontal part of the base. The two sides of the center cover plate are supported on two base placement grooves arranged oppositely. The center cover plate closes the deformation joint, and the center cover plate is connected to the sliding rod to fix the center cover plate and the base.

2. The embedded expansion joint device according to claim 1, characterized in that: The slide bar is provided with a first screw hole, the center cover is provided with a second screw hole matching the position of the first screw hole, and the center cover and the slide bar are connected and fixed to each other by screws in the first screw hole and the second screw hole.

3. The embedded expansion joint device according to claim 1 is characterized in that: The depth of the placement groove on the top surface of the base matches the thickness of the center cover plate. After the two sides of the center cover plate are supported in the two base placement grooves, the top surface of the center cover plate is flush with the top surface of the structural concrete.

4. The embedded expansion joint device according to claim 1, characterized in that: The horizontal part of the base is fixedly connected to one end of the anchor bar, and the other end of the anchor bar is welded to the structural steel bar in the structural concrete.

5. The embedded expansion joint device according to any one of claims 1 to 4, characterized in that: The first and second slots are arranged on the outer side surface of the vertical part of the base in sequence from top to bottom, the first and second slots extend along the length direction of the deformation joint and are arranged parallel to the deformation joint, the first and second slots are both T-slots, the T-slot includes a slide groove and an opening connecting the slide groove with the deformation joint, the width of the opening is smaller than the width of the slide groove, the diameter of the slide rod is smaller than the width of the T-slot opening, both ends of the slide rod are provided with sliders matching the size of the slide groove, the slide rod is slidably installed in the slide groove through the slider, the thickness of the waterstop is smaller than the width of the T-slot opening, both ends of the waterstop are provided with conical elastic clips matching the slide groove, and the two ends of the waterstop are inserted into the slide groove from the T-slot opening through the conical elastic clips.

6. The embedded expansion joint device according to claim 5, characterized in that: An entry slot is also provided on the vertical portion of the base, the top of the entry slot is provided with an inlet connected to the base placement slot, the bottom is provided with an outlet connected to the first card slot, and the entry slot is larger than the size of the slider on the slide rod.

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