Plugging device for reinforcing steel bar hole of prefabricated part

Abstract

The utility model discloses a prefabricated part steel bar hole plugging device which comprises an enclosing piece, a first connecting piece and a second connecting piece, and the enclosing piece is formed by connecting two sub enclosing pieces through the first connecting piece and the second connecting piece; the first connecting piece enables the two sub-enclosing pieces to be freely opened and closed at one end; each sub-enclosure piece is formed by bonding a shell and an elastomer material, the upper part of each shell is an arc-shaped outer wall, the inner side of each shell is bonded with a layer of first elastomer material, the lower part of each shell is a bottom plate formed by radially extending the bottom boundary of the arc-shaped outer wall outwards, and the bottom of each shell is bonded with a layer of second elastomer material; when the two sub-enclosure pieces are connected into a whole, the arc-shaped outer walls on the two sides and the first elastic body materials adhering to the arc-shaped outer walls form a closed cylinder in an enclosure mode, and the bottom plates on the two sides and the second elastic body materials adhering to the bottom plates achieve peripheral closed joint in the same plane. The inner diameter of the enclosed first elastomer material is smaller than the diameter of the steel bar, and the first elastomer material is engaged with the steel bar.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building construction, in particular to a device for plugging steel bar holes in precast components. Background Technique

[0002] In the actual production process of precast components in prefabricated buildings, steel bars are usually reserved for subsequent connection. In this process, holes need to be drilled in the formwork to allow the steel bars to pass through the holes and be tied before concrete pouring. To facilitate the penetration of the steel bars, the holes pre-drilled in the formwork are usually larger than the diameter of the steel bars, which results in slurry leakage during the subsequent concrete pouring process.

[0003] Traditional construction techniques usually use double-sided tape or foaming agents to plug the gaps of the steel bar holes. This technique is not only time-consuming and laborious, but also not conducive to the cleaning of the formwork, and the plugging quality cannot be guaranteed.

[0004] Although some existing steel bar hole plugging devices achieve good plugging effects, the device components are complex in structure, inconvenient to disassemble and assemble, and have high requirements for construction conditions, resulting in low engineering applicability. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a device for plugging steel bar holes in precast components, which has a simple structure and is convenient to disassemble and assemble.

[0006] To solve the above technical problems, the utility model provides a device for plugging steel bar holes in precast components, including an enclosing member, a first connecting member, and a second connecting member;

[0007] The enclosing member is formed by connecting two sub-enclosing members. One end uses the first connecting member, and the other end uses the second connecting member; the first connecting member enables the two sub-enclosing members to freely open and close at one end;

[0008] The sub-enclosing member is composed of a shell and an elastomeric material bonded together; the upper part of the shell is a section of arc-shaped outer wall, and the lower part is a bottom plate formed by radially extending outward from the bottom boundary of the arc-shaped outer wall. The arc-shaped outer wall and the bottom plate are integrally fixed; a layer of first elastomeric material is adhered to the side of the arc-shaped outer wall that contacts the steel bar, and a layer of second elastomeric material is adhered to the lower part of the bottom plate;

[0009] When the two sub-enclosing members are connected into a whole through the first connecting member and the second connecting member: the arc-shaped outer walls on both sides and the first elastomeric material adhered thereto enclose a closed cylindrical shape; the bottom plates on both sides and the second elastomeric material adhered thereto achieve peripheral closed joint in the same plane; the inner diameter of the first elastomeric material after enclosure is smaller than the diameter of the steel bar, and forms an occluding effect with the steel bar.

[0010] In a preferred embodiment: The first connecting member is a snap device.

[0011] In a preferred embodiment: The snap device includes a buckle body, a buckle ring, and a tongue; the buckle body is used to drive the buckle ring and the tongue to be in a released state or a limiting state; when the buckle ring and the tongue are in a limiting state, the two sub-enclosing members are in limiting cooperation in the opening direction.

[0012] In a preferred embodiment: The buckle body is movably connected to one of the sub-enclosing members, and the tongue is fixedly connected to the other sub-enclosing member; one end of the buckle ring is movably connected to the buckle body, and the other end is free.

[0013] In a preferred embodiment: The second connecting member is the same as the first connecting member.

[0014] In a preferred embodiment: The second connecting member is a rotating shaft device.

[0015] In a preferred embodiment: The outer shell is made of metal and has a thickness of 5 mm.

[0016] In a preferred embodiment: The first elastomeric material is rubber and has a thickness of 10 mm.

[0017] In a preferred embodiment: The second elastomeric material has the same material as the first elastomeric material.

[0018] In a preferred embodiment: The second elastomeric material is sponge and has a thickness of 15 mm.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The device only needs to be sleeved on the steel bar, pushed along the steel bar until the bottom plate is in close contact with the formwork, and then the snap device is fastened to achieve installation; after the precast member is poured, the snap device is loosened, and the device can be removed from the steel bar. The device has a simple structure, is convenient for disassembly and assembly, and improves the construction efficiency.

[0021] The device utilizes the compression and rebound performance of the elastomeric material to achieve close contact with the formwork and the steel bar, and has a good sealing effect on the concrete slurry; the biting effect formed by the elastomeric material after being compressed and the steel bar fixes the device on the surface of the steel bar to achieve stable operation. Therefore, the device improves the production quality of the precast member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the plugging device of the preferred embodiment of the present utility model;

[0023] Figure 2It is a schematic diagram of the buckle device in the plugging device of the preferred embodiment of the present utility model;

[0024] Figure 3 It is an installation schematic diagram of the plugging device of the preferred embodiment of the present utility model.

[0025] Annotation: 1 - steel bar, 2 - formwork, 3 - metal shell, 4 - buckle device, 5 - rotating shaft, 6 - rubber, 7 - sponge; 31 - outer arc wall, 32 - bottom plate, 41 - buckle body, 42 - buckle ring, 43 - locking tongue. Detailed implementation manners

[0026] To make the purpose and advantages of the present utility model clearer and easier to understand, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings of the preferred embodiments.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be wall-mounted connection, detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] As Figure 1 shown, in this preferred embodiment, the first connecting member is the buckle device 4. Referring to Figure 2 , the buckle device 4 includes a buckle body 41, a buckle ring 42 and a locking tongue 43. The buckle body 41 is hinged on the metal shell 3 of one side sub-enclosing member; one end of the buckle ring 42 is movably connected to the buckle body 41, and the other end is free; the locking tongue 43 is welded on the metal shell 3 of the other side sub-enclosing member and is provided with a groove for catching the free end of the buckle ring 42. When the buckle device 4 works, push the buckle body 41 forward and put the free end of the buckle ring 42 into the groove of the locking tongue 43, and then press the buckle body 41 back to a stable position to make the two side sub-enclosing members tightly connected at this end.

[0030] In this preferred embodiment, the second connecting member is a rotating shaft device 5. When the snap device 4 is in a released state, the two sub-enclosing members can rotate freely around the rotating shaft device 5 and fully open to be sleeved on the surface of the steel bar 1. In a specific embodiment, the second connecting member can also be the same as the first connecting member, which still does not affect the purpose and advantages of the technical solution of the present invention. That is, in this preferred embodiment, the rotating shaft device 5 can also be replaced by the snap device 4.

[0031] In this preferred embodiment, the outer shell is a metal shell 3 with a thickness of 5 mm. As Figure 1 shown, the upper part of the metal shell 3 is an arc-shaped outer wall 31, and the lower part is a bottom plate 32 formed by radially extending outward from the bottom boundary of the arc-shaped outer wall 31. The arc-shaped outer wall 31 and the bottom plate 32 are welded into a whole.

[0032] In this preferred embodiment, a layer of rubber 6 with a thickness of 10 mm is adhered to the side of the upper part of the metal shell 4 in contact with the steel bar 1; a layer of sponge 7 with a thickness of 15 mm is adhered to the lower part of the bottom plate 31 of the metal shell 3. It should be understood that the first elastomeric material in the claims is the rubber 6 in this embodiment, and the second elastomeric material is the sponge 7 in this embodiment.

[0033] When the snap device 4 is latched, the two sub-enclosing members are connected as a whole. At this time, the device has the following morphological characteristics: the arc-shaped outer walls 31 on both sides and the rubber 6 adhered thereto enclose a closed cylindrical shape, and the bottom plates 32 on both sides and the sponge 7 adhered thereto achieve a closed joint on the outer periphery in the same plane. The two closed surfaces jointly achieve the plugging of the concrete slurry;

[0034] The inner diameter of the cylindrical metal outer wall 31 is larger than the diameter of the steel bar, ensuring that the two sub-enclosing members can be normally latched when sleeved on the surface of the steel bar; the inner diameter after the rubber 6 is enclosed is smaller than the diameter of the steel bar. The elastic compression and rebound characteristics of the elastomeric material are used to generate a biting effect on the surface of the steel bar, forming a closed effect with the surface of the steel bar and providing a frictional resistance on the contact surface between the two at the same time to resist the impact of the slurry during concrete pouring on the device, so that the device can work stably close to the formwork.

[0035] In the actual production process of prefabricated components, the steel bars are usually not absolutely perpendicular to the formwork, which causes the bottom plate and the formwork to form a certain angle after the steel bars are inserted into the device, and they cannot fit completely. To solve this problem, in the preferred embodiment, the second elastomeric material is a sponge 7 with a thickness of 15 mm. The difference in extrusion deformation of the sponge material at different positions is used to achieve the fit between the bottom plate 32 and the contact surface of the formwork 2, thereby sealing the concrete slurry. In a specific embodiment, the second elastomeric material can also be made of the same material as the first elastomeric material, which does not affect the purpose and advantages of the technical solution of the utility model. That is, in the preferred embodiment, the sponge 7 can also be replaced by the rubber 6.

[0036] The technical solution of the device is supplemented below with reference to the construction steps of this preferred embodiment.

[0037] Before pouring concrete on the precast component, clean the area around the steel bar holes on the template 2 and adjust the steel bar 1 so that it is as perpendicular to the template as possible.

[0038] Release the buckle device 4, fully open the sub-enclosures on both sides, and put the device on the steel bar 1. At this time, the buckle device 4 is still in a released state.

[0039] Push the device along the length direction of the steel bar to the hole, make the bottom plate 32 contact the template 2, and squeeze the sponge 7 to make the bottom of the device fit the template completely. At the same time, buckle the buckle device 4, that is, push the buckle body 41 forward to insert the free end of the buckle ring 42 into the slot of the tongue 43, and press the buckle body 41 back to a stable position so that the rubber 6 tightly bites the surface of the steel bar. At this point, the installation process of the device is completed.

[0040] After the concrete of the prefabricated component is poured and reaches the required strength, the buckle body 41 is pulled to disengage the free end of the buckle ring 42 from the slot of the latch tongue 43 , and the buckle device 4 is released, so that the device can be removed from the steel bar 1 .

[0041] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A precast component steel bar hole plugging device, characterized in that: It includes an enclosure, a first connecting piece, and a second connecting piece; The enclosure is formed by connecting two sub - enclosures. One end uses the first connecting piece, and the other end uses the second connecting piece. The first connecting piece enables the two sub - enclosures to open and close freely at one end; The sub - enclosure is composed of a shell and an elastomeric material bonded together. The upper part of the shell is a section of arc - shaped outer wall, and the lower part is a bottom plate formed by radially extending outward from the bottom boundary of the arc - shaped outer wall. The arc - shaped outer wall and the bottom plate are fixedly connected as a whole. A layer of first elastomeric material is adhered to the side of the arc - shaped outer wall in contact with the steel bar, and a layer of second elastomeric material is adhered to the lower part of the bottom plate; When the two sub - enclosures are connected into a whole through the first connecting piece and the second connecting piece: the arc - shaped outer walls on both sides and the first elastomeric material adhered thereto enclose a closed cylindrical shape; the bottom plates on both sides and the second elastomeric material adhered thereto achieve a closed joint on the outer periphery in the same plane. The inner diameter of the first elastomeric material after enclosure is smaller than the diameter of the steel bar, forming an interlocking effect with the steel bar.

2. The precast component steel bar hole plugging device according to claim 1, characterized in that: The first connecting piece is a snap - fastener device.

3. The precast member steel bar hole plugging device according to claim 2, characterized in that: The snap - fastener device includes a buckle body, a buckle ring, and a tongue. The buckle body is used to drive the buckle ring and the tongue to be in a released state or a limited state. When the buckle ring and the tongue are in a limited state, the two sub - enclosures are in a limited - cooperation state in the opening direction.

4. A precast component steel bar hole plugging device according to claim 3, characterized in that: The buckle body is movably connected to one of the sub - enclosures, and the tongue is fixedly connected to the other sub - enclosure. One end of the buckle ring is movably connected to the buckle body, and the other end is free.

5. The precast component steel bar hole plugging device according to claim 1, characterized in that: The second connecting piece is the same as the first connecting piece.

6. The precast member steel bar hole plugging device according to claim 1, wherein: The second connecting piece is a rotating - shaft device.

7. The precast component steel bar hole plugging device according to claim 1, characterized in that: The shell is made of metal and has a thickness of 5 mm.

8. A precast component steel bar hole plugging device according to claim 1, characterized in that: The first elastomeric material is rubber and has a thickness of 10 mm.

9. The precast member steel bar hole plugging device according to claim 1, characterized in that: The second elastomeric material has the same material as the first elastomeric material.

10. The prefabricated component steel bar hole plugging device according to claim 1, characterized in that: The second elastomeric material is sponge and has a thickness of 15 mm.

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