Detachable tie piece for prefabricated cavity system

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a detachable tie piece for a prefabricated cavity system, which comprises a reinforcement cage and a tie part, clamping parts are arranged at two ends of the tie part, and the tie part is clamped with the reinforcement cage through the clamping parts. The tie component comprises a connecting rod penetrating through the reinforcement cage and tie heads located outside the two sides of the reinforcement cage, the tie heads are connected through the connecting rod, the tie heads of a three-dimensional structure are adopted, the meshing force of the tie heads and the interior of a prefabricated concrete slab can be improved, the prefabricated walls on the two sides are firmly fixed together through the connecting rod and the tie heads, and the tie heads are connected through the connecting rod. The prefabricated wall bodies on the two sides form tensile resistance to each other, the tensile effect is greatly improved, and therefore the strength and stability of the cavity system structure are improved; and through the arrangement of the clamping parts, rapid combination of the pulling parts and the steel bars can be achieved, the manufacturing efficiency of the steel reinforcement cage is improved, the positions of the pulling parts in the steel reinforcement cage can be readjusted in the follow-up process, and the flexibility is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tie member, especially a detachable tie member for prefabricated cavity system. BACKGROUND

[0002] The cavity (superimposed, formwork etc.) system is a kind of building structure system, mainly used for the manufacture and installation of prefabricated components. Its core feature is to use cavity components, which are prefabricated in factory and then assembled on site, thereby reducing the complexity and time of on-site construction. The structure of the cavity system is that the outer side is prefabricated concrete slab, the middle part is cavity with reinforcement cage, and the reinforcement cage cooperates with tie component to tie and fix the corresponding two sides of prefabricated concrete slab. The existing cavity system mostly uses embedded tie bar or web steel bar etc. tie bar to tie on the tie structure. This tie mode has the following disadvantages: 1. the contact surface of steel bar and concrete is small, and the engagement effect is not very good. When the prefabricated concrete slab is subjected to external force, the force will be directly transmitted to the welding point of tie bar and reinforcement cage, and only the fixation of welding point makes the tie force of tie bar to the cavity system structure weak, and the stability of two sides of prefabricated concrete slab is poor; 2. since the tie bar or web steel bar is fixed with reinforcement cage by welding, it is difficult to adjust the position of tie bar or web steel bar in subsequent operation, and it needs to be removed and re-welded, which is time-consuming and laborious. SUMMARY

[0003] Therefore, the utility model provides a detachable tie member for prefabricated cavity system to solve the above technical problems.

[0004] The technical scheme of the utility model is as follows:

[0005] The utility model provides a detachable tie member for prefabricated cavity system, including the reinforcement cage of rectangular column arrangement, still include the tie component of two sides of the reinforcement cage, the both ends of tie component are equipped with the clamping part, and the tie component is clamped with the reinforcement cage through the clamping part, and the tie component includes the connecting rod of the reinforcement cage and the tie head of the both sides of the external reinforcement cage, and the tie head is connected with each other through the connecting rod.

[0006] Preferably, the clamping part includes upper clamping plate and lower clamping plate, and the clamping cavity is formed between the upper clamping plate and the lower clamping plate, and the reinforcement of the reinforcement cage is clamped with the clamping cavity.

[0007] Preferably, the outer end of the upper clamping plate and the lower clamping plate is curved to form the clamping interface of duckbill shape towards the center direction of the clamping cavity.

[0008] Preferably, the clamping part is arranged in the side wall of the tie component in cross shape.

[0009] Preferably, the clamping component is arranged at the bottom of the tie head.

[0010] Preferably, the clamping component is arranged at the bottom of the tie head.

[0011] Preferably, the connecting rod is fixedly connected with the tie head.

[0012] Preferably, the connecting rod is detachably connected with the tie head, the center of the tie head is provided with a threaded hole, the two ends of the connecting rod are provided with external threads, and the connecting rod is threadedly connected with the threaded hole.

[0013] Preferably, the cross-sectional diameter of the tie head is greater than the cross-sectional diameter of the connecting rod.

[0014] Preferably, the inside of the tie head is axially provided with a through groove for passing concrete, and the through groove is arranged in a ring shape in the inside of the tie head.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model provides a detachable tie piece for prefabricated cavity system, adopts the tie head of three -dimensional structure formula, can improve and the bite of inside prefabricated concrete slab, is fixedly together with both sides prefabricated wall body through connecting rod and tie head, makes both sides prefabricated wall body form the tensile strength each other, greatly improves the tensile effect, thereby improves the strength and stability of cavity system structure, the setting of clamping component not only can realize the quick combination of tie component and reinforcing steel bar, thereby improves the manufacturing efficiency of reinforcing cage, in the subsequent process, still can quickly take down tie component, readjusts the position of tie component in reinforcing cage, greatly improves the flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only preferred embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without the creative labor.

[0018] Figure 1 It is the arrangement drawing of the tie component and reinforcing cage of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic view of the tie component of the utility model;

[0020] Figure 3 It is the front view of the tie component of the utility model;

[0021] Figure 4The structure schematic view of the clamping parts in cross shape arrangement.

[0022] In the figure, 1, tie component; 11, clamping component; 111, upper clamping plate; 112, lower clamping plate; 113, clamping cavity; 12, connecting rod; 13, tie head; 2, steel reinforcement cage; 3, through slot. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the utility model, the following specific embodiments are provided, and the utility model is further explained in combination with the drawings.

[0024] Referring to Figures 1 to 4 The utility model provides a kind of detachable tie member for prefabricated cavity system, including the steel reinforcement cage 2 of rectangular column arrangement, further include the tie component 1 passing through the both sides of the steel reinforcement cage 2, the both ends of the tie component 1 are equipped with clamping component 11, the tie component 1 is clamped with the steel reinforcement cage 2 by the clamping component 11, the tie component 1 includes the connecting rod 12 passing through the steel reinforcement cage 2 and the tie head 13 located at the outside of steel reinforcement cage 2 both sides, the tie head 13 is connected with each other by the connecting rod 12, clamping component 11 is located at the inside of tie head 13.

[0025] The orientation of the clamping component 11 of the both ends of tie component 1 is same, for example, with horizontal right, tie component 1 is arranged in the form of rectangular array, tie component 1 is vertically upwards, both ends of tie head 13 is mirror symmetry, first, the steel frame of bottom layer is set up, horizontal longitudinal reinforcement is clamped on the clamping component 11 of the same column of tie component 1, and is arranged along transverse direction, and clamping component 11 plays the role of fixing and supporting to horizontal longitudinal reinforcement;Subsequently, horizontal transverse reinforcement is arranged in the top of horizontal longitudinal reinforcement along longitudinal direction, and horizontal longitudinal reinforcement plays the role of supporting to horizontal transverse reinforcement, so that horizontal longitudinal reinforcement and horizontal transverse reinforcement are arranged in cross, and horizontal longitudinal reinforcement and horizontal transverse reinforcement can be fixedly connected by welding, binding or buckle connection etc., to complete the construction of the steel reinforcement net rack of bottom layer;Subsequently, it is turned over 180 ° as a whole, and the above steps are repeated to rebuild the steel reinforcement net rack at the other end of tie component 1, to complete the fixation to the whole steel reinforcement cage 2 and tie member;It can also be first made steel reinforcement cage 2, after steel reinforcement cage 2 is formed, then clamping component 1 is clamped with the top layer steel reinforcement and bottom layer steel reinforcement of steel reinforcement cage 2 in turn, to complete the fixation to the whole steel reinforcement cage 2 and tie member.

[0026] Compared with the traditional method of pre-burying the web steel bars in the prefabricated concrete slab, the contact surface between the web steel bars and the interior of the prefabricated concrete slab is a smooth curved surface, and the occlusion effect formed by the two is poor, and the pulling force on the prefabricated concrete slab is weak. The three-dimensional structure of the tie head 13 can expand the contact area with the interior of the prefabricated concrete slab, thereby improving the occlusion force with the interior of the prefabricated concrete slab and improving the pulling force on the prefabricated concrete slab on both sides. The tie component 1 connects and fixes the tie heads 13 on both sides through the connecting rod 12 to form an integrated structure, and firmly connects the prefabricated concrete slabs on both sides. When the prefabricated concrete slab on the left side is subjected to external force and tends to deviate, the external force will also act on the prefabricated concrete slab on the right side, and the prefabricated concrete slab on the right side will also generate a counteracting force to resist the deviation of the prefabricated concrete slab on the left side, thereby changing the original pre-buried tensioning steel or web steel bar to provide tensile resistance, and greatly improving the tensile effect, thereby improving the strength and stability of the cavity system wall structure.

[0027] The arrangement of the clamping component 11 not only realizes the rapid combination of the tie component 1 and the steel bars, thereby improving the manufacturing efficiency of the steel cage 2, but also can quickly remove the tie component 1 in the subsequent process, and re-adjust the position of the tie component 1 in the steel cage 2, thereby greatly improving the flexibility.

[0028] Specifically, the clamping component 11 includes an upper clamping plate 111 and a lower clamping plate 112, and a U-shaped clamping cavity 113 is formed between the upper clamping plate 111 and the lower clamping plate 112. The steel bars of the steel cage 2 are clamped with the clamping cavity 113, and the steel bars of the steel cage 2 are clamped by the upper clamping plate 111 and the lower clamping plate 112.

[0029] Specifically, the outer ends of the upper clamping plate 111 and the lower clamping plate 112 are curved to form a duckbill-shaped clamping port in the center direction of the clamping cavity 113, thereby reducing the outlet height of the clamping cavity 113 and better locking the steel bars inside.

[0030] Specifically, referring to Figure 4 , the clamping component 11 is arranged in a cross shape on the side wall of the tie component 1, and can effectively support the steel bars on the left side, the right side, the front side or the rear side. When the tie component 1 is arranged in an array, the difficulty of adjusting the direction of the clamping component 11 is reduced, and the arrangement efficiency of the tie component 1 is improved.

[0031] Specifically, the clamping component 11 is arranged at the bottom of the tie head 13.

[0032] Specifically, the clamping component 11 can also be arranged at both ends of the connecting rod 12.

[0033] Specifically, the connecting rod 12 can be fixedly connected with the tie head 13 in a welding manner, or can be fixedly connected in an integrally formed manner.

[0034] Specifically, the connecting rod 12 is detachably connected with the tie head 13, a threaded hole can be formed in the center of the tie head 13, both ends of the connecting rod 12 are provided with external threads, and the connecting rod 12 is connected with the tie head 13 in a threaded connection manner, so that the connecting rod 12 with a suitable length can be used to realize quick assembly of the tie component 1 according to the required thickness of different cavity systems.

[0035] Specifically, the cross-sectional diameter of the tie head 13 is greater than the cross-sectional diameter of the connecting rod 12, so as to form a T-shaped structure with the connecting rod 12, increase the volume of the tie head 13 embedded in the prefabricated concrete slab, and improve the engagement effect of the tie head 13 and the prefabricated concrete slab.

[0036] Specifically, the inside of the tie head 13 is axially provided with a through groove 3 for concrete, and the through groove 3 is arranged in a ring shape in the inside of the tie head 13, so that the concrete can fully wrap the outside and the inside of the tie head 13, further improve the engagement effect, and improve the pulling force of the tie head 13 on the prefabricated concrete slab.

[0037] In addition, when pouring concrete, a grid or mesh of basalt or other materials can be added, which can prevent the surface of the formed wall or column from cracking, and can also prevent the surface of the wall or column from rusting in the later period.

[0038] It should be noted that the cavity system mentioned in the present application includes a laminated wall (column) system and a formwork wall (column) system.

[0039] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable tie for precast cavity systems comprising a cage of reinforcing bars arranged in a rectangular column, characterised in that, The connecting member is provided with clamping parts at both ends, and the connecting member is clamped with the reinforcing cage through the clamping parts.

2. A detachable tie for a prefabricated cavity system according to claim 1, characterized in that The clamping parts are arranged in a cross shape on the side wall of the connecting member.

3. A detachable tie for a prefabricated cavity system according to claim 2, characterized in that The clamping parts are arranged at the bottom of the connecting head.

4. A detachable tie for a prefabricated cavity system according to claim 3, characterized in that The clamping parts are arranged at both ends of the connecting rod.

5. A detachable tie for a prefabricated cavity system according to claim 4, characterized in that The connecting rod is fixedly connected with the connecting head.

6. A detachable tie for a prefabricated cavity system according to claim 4, characterized in that The connecting rod is detachably connected with the connecting head.

7. A detachable tie for a prefabricated cavity system according to claim 1, characterized in that The connecting head is provided with a threaded hole in the center, and both ends of the connecting rod are provided with external threads.

8. A detachable tie for a prefabricated cavity system according to claim 1, characterized in that The cross section diameter of the connecting head is larger than that of the connecting rod.

9. A detachable tie for a prefabricated cavity system according to claim 1, characterized in that The connecting head is provided with a through groove in the center for the concrete to pass through.

10. A detachable tie for a prefabricated cavity system according to claim 9, characterized in that ​

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