Opposite-pull screw rod for cast-in-place sandwich fair-faced concrete outer wall

Abstract

The utility model provides an opposite-pull screw rod for a cast-in-place sandwich fair-faced concrete outer wall, which comprises a template erected on the side walls at the two ends of a wall body structure. The first opposite-pulling structure penetrates through the template on the right side; the second opposite-pulling structure penetrates through the template on the left side; the positioning pieces are respectively fixed on the side wall of the second opposite-pull screw rod and the edge of the side wall of one end of the connecting pipe; the water stop pieces are respectively fixed on the side wall of the first opposite-pull screw rod and the side wall of the second opposite-pull screw rod; the split screw for the cast-in-place sandwich fair-faced concrete outer wall has the advantages that the water stopping effect of the screw can be enhanced, sandwich plate positioning and split screw construction can be conveniently completed at a time, damage of the screw to heat preservation materials is small, and the heat preservation effect of the outer wall can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a tension rod for a cast-in-place sandwich fair-faced concrete exterior wall. Background Art

[0002] Fair-faced concrete, also known as decorative concrete, gets its name because of its excellent decorative effect. It belongs to the natural surface of the concrete cast in one time as the decorative surface without adding other external decorations. In recent years, with the in-depth promotion of the concept of green development, fair-faced concrete is increasingly favored by people who advocate environmental protection and are close to nature. And the one-time forming quality of fair-faced concrete is the key to affecting the forming effect of fair-faced concrete.

[0003] At present, during the pouring of fair-faced concrete, the diameters of the water stop piece and the socket cup are larger than the diameter of the tension rod. When the whole tension rod penetrates through the XPS board, the holes left in the XPS board are too large, affecting the heat preservation effect. If a part of the tension rod penetrates first and then another part of the rod is screwed in on the opposite side of the XPS board, auxiliary tools are still needed, and the construction is relatively complex. At present, the internal insulation board of the sandwich wall mostly adopts the measure of connecting with the wall reinforcement for fixation. However, in the actual construction process, the steel mesh is easy to deform and tilt, and the position of the insulation board is easy to shift in the wall thickness direction, affecting the heat preservation effect of the sandwich wall.

[0004] Therefore, it is necessary to provide a new tension rod for a cast-in-place sandwich fair-faced concrete exterior wall to solve the above technical problems. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a tension rod for a cast-in-place sandwich fair-faced concrete exterior wall, which can strengthen the water stop effect of the tension rod, facilitate the positioning of the sandwich board and the construction of the tension rod to be completed at one time, cause little damage to the thermal insulation material by the tension rod, and can strengthen the thermal insulation effect of the exterior wall.

[0006] To solve the above technical problems, the tension tie rod for the in-situ sandwich fair-faced concrete exterior wall provided by the utility model includes: a formwork, which is erected on the side walls at both ends of the wall structure; a first tension structure, which penetrates through the formwork on the right side. The first tension structure includes a first tension tie rod, a connecting pipe, and a bayonet. The first tension tie rod penetrates through the formwork on the right side. The connecting pipe is fixed to one end of the first tension tie rod. The bayonet is arranged inside the side wall at one end of the connecting pipe; a second tension structure, which penetrates through the formwork on the left side. The second tension structure includes a second tension tie rod, and the second tension tie rod penetrates through the formwork on the left side; positioning pieces, which are respectively fixed to the side wall of the second tension tie rod and the edge of the side wall at one end of the connecting pipe; water-stop pieces, which are respectively fixed to the side wall of the first tension tie rod and the side wall of the second tension tie rod; a cushion block, which abuts against the side wall of the formwork at the intersection point of the first tension tie rod and the second tension tie rod; positioning members, which are respectively threadedly connected to the side wall at one end of the first tension tie rod and the side wall at one end of the second tension tie rod.

[0007] Preferably, the second tension structure further includes a plug, a clamping block, a sliding groove, and a spring. The plug is fixed to one end of the second tension tie rod. The sliding grooves are arranged on the upper and lower end faces of the plug. The clamping block is installed at one end inside the sliding groove. The spring is supported between the clamping block and the inner side wall of the sliding groove.

[0008] Preferably, the size of the plug corresponds to the size of the bayonet, and the clamping block is clamped inside the bayonet.

[0009] Preferably, one end of the clamping block is rotatably connected to one end inside the sliding groove. The shape of the sliding groove corresponds to the shape of the clamping block. The internal space of the sliding groove is slightly larger than the volume of the clamping block. The clamping block slides inside the sliding groove.

[0010] Preferably, a stop block is arranged at the other end inside the sliding groove, and the stop block limits the position of the clamping block inside the sliding groove.

[0011] Preferably, for the wall structure, the formwork abuts against the side walls at both ends of the wall structure. The wall structure includes a sandwich wall, a thermal insulation board, and a fair-faced concrete layer. The thermal insulation board is arranged between the sandwich wall and the fair-faced concrete layer. Two positioning pieces respectively abut against the side walls at both ends of the thermal insulation board at the same position. Two water-stop pieces are respectively inside the sandwich wall and inside the fair-faced concrete layer.

[0012] Preferably, the first pair of tie rods are connected to the second pair of tie rods through the engagement of the bayonet and the clamping block, and the first pair of tie rods and the second pair of tie rods limit the position by pressing the cushion block through the positioning member.

[0013] Compared with the related art, the tie rod for the cast-in-place sandwich fair-faced concrete exterior wall provided by the present invention has the following beneficial effects:

[0014] The present invention provides a tie rod for a cast-in-place sandwich fair-faced concrete exterior wall. According to the structure of the sandwich wall of the cast-in-place sandwich, two water stop sheets are eccentrically arranged for water stop, and the water stop effect is better; the complex operation of fixing the insulation board by means of a separation fixing clamp through a steel mesh in the traditional method is simplified to the integration of the positioning piece with the first pair of tie rods and the second pair of tie rods. During the construction process, the two tie rods and the insulation board are fixed at one time; the traditional spiral connection structure tightened by means of tools is changed to a simple snap connection structure, and only pressing is required during construction, and the through-hole size of the insulation board is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the tie rod for the cast-in-place sandwich fair-faced concrete exterior wall provided by the present invention;

[0016] Figure 2 For Figure 1 It is a schematic structural diagram of the connection of the shown tie rod;

[0017] Figure 3 For Figure 2 It is a schematic structural diagram of the separation of the shown tie rod;

[0018] Figure 4 For Figure 3 It is a schematic structural diagram of the cross-section of the shown plug and the bayonet;

[0019] Figure 5 For Figure 2 It is a schematic structural diagram of the three-dimensional display of the overall structure of the shown plug.

[0020] Reference numerals in the drawings: 1, formwork; 2, cushion block; 3, positioning member; 4, wall structure; 41, sandwich wall; 42, insulation board; 43, fair-faced concrete layer; 5, first tension structure; 51, first tie rod; 52, connecting pipe; 53, bayonet; 6, second tension structure; 61, second tie rod; 62, plug; 63, clamping block; 64, chute; 65, spring; 7, positioning piece; 8, water stop sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Please refer to Figures 1 to 5 , Figure 1 , which is a schematic structural view of a preferred embodiment of the tension rod for the cast-in-place sandwich fair-faced concrete exterior wall provided by the present utility model; Figure 2 is Figure 1 a schematic structural view of the tension rod shown in the figure being clamped; Figure 3 is Figure 2 a schematic structural view of the tension rod shown in the figure being separated; Figure 4 is Figure 3 a schematic structural view of the cross-section of the plug and the bayonet shown in the figure; Figure 5 is Figure 2 a schematic three-dimensional structural view of the overall structure of the plug shown in the figure; The tension rod for the cast-in-place sandwich fair-faced concrete exterior wall includes: a formwork 1, and the formwork 1 is erected on the side walls at both ends of the wall structure 4; a first tension structure 5, and the first tension structure 5 penetrates through the formwork 1 on the right side. The first tension structure 5 includes a first tension rod 51, a connecting pipe 52, and a bayonet 53. The first tension rod 51 penetrates through the formwork 1 on the right side. The connecting pipe 52 is fixed to one end of the first tension rod 51, and the bayonet 53 is arranged inside the side wall at one end of the connecting pipe 52; a second tension structure 6, and the second tension structure 6 penetrates through the formwork 1 on the left side. The second tension structure 6 includes a second tension rod 61, and the second tension rod 61 penetrates through the formwork 1 on the left side; a positioning piece 7, and the positioning piece 7 is respectively fixed to the side wall of the second tension rod 61 and the edge of the side wall at one end of the connecting pipe 52; a water stop piece 8, and the water stop piece 8 is respectively fixed to the side wall of the first tension rod 51 and the side wall of the second tension rod 61; a cushion block 2, and the cushion block 2 abuts against the side wall of the formwork 1 at the intersection point of the first tension rod 51 and the second tension rod 61; a positioning member 3, and the positioning member 3 is respectively threadedly connected to the side wall at one end of the first tension rod 51 and the side wall at one end of the second tension rod 61.

[0023] In the specific implementation process, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the second pair of tension structures 6 further includes a plug 62, a clamping block 63, a sliding groove 64 and a spring 65. The plug 62 is fixed to one end of the second pair of tension screws 61. The sliding grooves 64 are arranged on the upper and lower end faces of the plug 62. One end of the clamping block 63 is installed inside the sliding groove 64. The spring 65 is supported between the clamping block 63 and the inner side wall of the sliding groove 64. The size of the plug 62 corresponds to the size of the bayonet 53, and the clamping block 63 is clamped inside the bayonet 53. One end of the clamping block 63 is rotatably connected to one end inside the sliding groove 64. The shape of the sliding groove 64 corresponds to the shape of the clamping block 63. The internal space of the sliding groove 64 is slightly larger than the volume of the clamping block 63, and the clamping block 63 slides inside the sliding groove 64. A stop block is arranged at the other end inside the sliding groove 64, and the stop block limits the position of the clamping block 63 inside the sliding groove 64. The first pair of tension screws 51 is connected to the second pair of tension screws 61 through the engagement of the bayonet 53 and the clamping block 63, and the first pair of tension screws 51 and the second pair of tension screws 61 press the cushion block 2 through the positioning member 3 for position limitation.

[0024] It is convenient for the second pair of tension screws 61 to be inserted into the bayonet 53 arranged at one end of the first pair of tension screws 51 through the plug 62. The spring 65 can support the clamping block 63 to be clamped inside the bayonet 53, so that the first pair of tension screws 51 and the second pair of tension screws 61 are fixedly connected together, and then the position is fixed under the cooperation of the cushion block 2 and the positioning member 3.

[0025] In the specific implementation process, as Figure 1 shown, for the wall structure 4, the formwork 1 abuts against the side walls at both ends of the wall structure 4. The wall structure includes a sandwich wall 41, a heat preservation board 42 and a fair-faced concrete layer 43. The heat preservation board 42 is arranged between the sandwich wall 41 and the fair-faced concrete layer 43. Two positioning pieces 7 respectively abut against the side walls at both ends of the heat preservation board 42 at the same position, and two water stop pieces 8 are respectively inside the sandwich wall 41 and inside the fair-faced concrete layer 43.

[0026] It is convenient for the positioning piece 7 to limit the positions of the first pair of tension screws 51 and the second pair of tension screws 61. At the same time, it can also seal the through holes where the second pair of tension screws 61 penetrate through the heat preservation board 42, so as to reduce the perforation size of the heat preservation board 42, and the two water stop pieces 8 are eccentrically arranged for water stop, and the water stop effect is better.

[0027] The working principle of the tension screw for the cast-in-place sandwich fair-faced concrete exterior wall provided by the present utility model is as follows:

[0028] During actual on-site construction, after the steel bar meshes on both sides of the cast-in-place sandwich concrete wall are tied, the heat preservation board 42 is placed, and then the second tension rod 61 with one end of the plug 62 is passed through the side wall of the heat preservation board 42 from one side, so that the positioning piece 7 fixed on its side wall abuts against the side wall of the heat preservation board 42. At this time, the plug 62 just completely penetrates the heat preservation wall board and is exposed on the other side wall. Then, the first tension rod 51 is installed from the opposite side according to the position of the second tension rod 61. The first tension rod 51 and the second tension rod 61 are inserted into the inside of the bayonet 53 through the plug 62. Under the support of the spring 65, the clamping block 63 is clamped inside the bayonet 53, so that the first tension rod 51 and the second tension rod 61 are connected together in a snap connection manner, and the positioning piece 7 fixed on the side wall of the first tension rod 51 abuts against the other side wall of the heat preservation board 42. Then, the formwork 1 is installed, so that the cushion block 2 is sleeved and abuts against the side wall of the formwork 1 through one end of two screws. Then, the position of the formwork 1 is fixed by the positioning member 3 through abutting against the cushion block 2. Then, the fair-faced concrete layer is poured. This device has the advantages of being able to enhance the water-stop effect of the screw, facilitating the positioning of the sandwich board and the construction of the tension rod at one time, having little damage to the heat preservation material by the screw, and being able to enhance the heat preservation effect of the exterior wall.

[0029] Compared with the related technology, the tension rod for the cast-in-place sandwich fair-faced concrete exterior wall provided by the present utility model has the following beneficial effects:

[0030] The present utility model provides a tension rod for a cast-in-place sandwich fair-faced concrete exterior wall. According to the structure of the sandwich wall 41 of the cast-in-place sandwich, two water-stop pieces 8 are eccentrically arranged for water-stop, and the water-stop effect is better; the complex operation of fixing the heat preservation board 42 by means of a separation fixing clamp through the steel bar mesh in the traditional way is simplified to the integration of the positioning piece 7, the first tension rod 51 and the second tension rod 61. During the construction process, the fixation of the two tension rods and the heat preservation board 42 is completed at one time; the traditional spiral connection structure tightened by means of tools is changed to a simple snap connection structure, and only pressing is required during construction, and the through-hole size of the heat preservation board 42 is small.

[0031] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A tension rod for a cast-in-place sandwich fair-faced concrete exterior wall, characterized in that, Comprising; A formwork (1) erected on the two side walls at the two ends of a wall structure (4); A first tension structure (5) passing through the formwork (1) on the right side. The first tension structure (5) includes a first tension screw rod (51), a connecting pipe (52) and a bayonet (53). The first tension screw rod (51) passes through the formwork (1) on the right side. The connecting pipe (52) is fixed to one end of the first tension screw rod (51). The bayonet (53) is arranged inside the side wall at one end of the connecting pipe (52); A second tension structure (6) passing through the formwork (1) on the left side. The second tension structure (6) includes a second tension screw rod (61). The second tension screw rod (61) passes through the formwork (1) on the left side; Positioning pieces (7) respectively fixed to the side wall of the second tension screw rod (61) and the edge of the side wall at one end of the connecting pipe (52); Waterstop pieces (8) respectively fixed to the side walls of the first tension screw rod (51) and the second tension screw rod (61); A cushion block (2) abutted against the side wall of the formwork (1) at the intersection point of the first tension screw rod (51) and the second tension screw rod (61); Positioning members (3) respectively threadedly connected to the side walls at one ends of the first tension screw rod (51) and the second tension screw rod (61).

2. The tie rod for the cast-in-place sandwich fair-faced concrete exterior wall according to claim 1, wherein The second tension structure (6) further includes a plug (62), a clamping block (63), a sliding groove (64) and a spring (65). The plug (62) is fixed to one end of the second tension screw rod (61). The sliding groove (64) is arranged on the upper and lower end faces of the plug (62). The clamping block (63) is installed at one end inside the sliding groove (64). The spring (65) is supported between the clamping block (63) and the inner side wall of the sliding groove (64).

3. The tie rod for the cast-in-place sandwich fair-faced concrete exterior wall according to claim 2, characterized in that, The size of the plug (62) corresponds to the size of the bayonet (53), and the clamping block (63) is clamped inside the bayonet (53).

4. The tie rod for the cast-in-place sandwich fair-faced concrete exterior wall according to claim 2, characterized in that, One end of the clamping block (63) is rotatably connected to one end inside the sliding groove (64). The shape of the sliding groove (64) corresponds to the shape of the clamping block (63). The internal space of the sliding groove (64) is slightly larger than the volume of the clamping block (63). The clamping block (63) slides inside the sliding groove (64).

5. The tie rod for the cast-in-place sandwich fair-faced concrete exterior wall according to claim 2, characterized in that, A stop block is arranged at the other end inside the sliding groove (64), and the stop block limits the position of the clamping block (63) inside the sliding groove (64).

6. The tie rod for the cast-in-situ sandwich fair-faced concrete exterior wall according to claim 2, characterized in that, Wall structure (4), the formwork (1) abuts against the two end side walls of the wall structure (4), the wall structure includes a sandwich wall (41), a thermal insulation board (42) and a fair-faced concrete layer (43), the thermal insulation board (42) is arranged between the sandwich wall (41) and the fair-faced concrete layer (43), and two of the positioning pieces (7) respectively abut against the two end side walls of the thermal insulation board (42) at the same position, and two of the water stop pieces (8) are respectively inside the sandwich wall (41) and inside the fair-faced concrete layer (43).

7. The tie rod for the cast-in-situ sandwich fair-faced concrete exterior wall according to claim 2, characterized in that, The first pair of tie rods (51) is connected to the second pair of tie rods (61) through the engagement of the bayonet (53) with the block (63), and the first pair of tie rods (51) and the second pair of tie rods (61) are position-limited by the positioning member (3) pressing the spacer block (2).

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