Detachable split bolt

Abstract

The utility model discloses a detachable split bolt, and relates to the technical field of building construction, the detachable split bolt comprises a sleeve, a bolt bar, a rubber horseshoe pad, a gasket, an anti-cracking spring and a fastening nut, the bolt bar comprises a first split rod, a second split rod and a plurality of extension rods; one end face of the first opposite-pull rod and one end face of the lengthening rod are connected with connecting rods, inserting grooves are formed in the other end of the lengthening rod and one end face of the second opposite-pull rod, positioning holes communicated with the inserting grooves are formed in the outer surfaces of the ends, close to the inserting grooves, of the lengthening rod and the second opposite-pull rod in a penetrating mode, and connecting screw holes are formed in the positions, corresponding to the positioning holes, of the surfaces of the connecting rods. According to the design, the detachable and spliced bolt bars are adopted, the bolt bars of corresponding sizes can be assembled according to different thicknesses of to-be-poured walls, the use range of the bolt bars is widened, and the bolt bars are matched with the sleeves for application, so that the sleeves can be used as inner supports of the walls, the use amount of inner supporting steel bars of formworks is reduced, the bolt bars can be conveniently pulled out after construction, and the construction efficiency is improved. The bolt bar can be continuously and repeatedly used, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a detachable tie bolt. Background Technology

[0002] With economic development and construction, the number of water conservancy and hydropower projects in my country is increasing, and the related technologies are becoming more and more mature. In traditional construction, three-section tie bolts are used for construction. The middle section bolts are embedded in the concrete structure and cannot be reused. At the same time, the three-section tie bolts only apply tension to the formwork, and it is also necessary to arrange supporting steel bars in the formwork for internal support, which increases the construction cost significantly.

[0003] Therefore, this utility model provides a detachable tie bolt. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a detachable tie bolt, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable tie bolt, comprising a sleeve fixed in the wall to be poured and a bolt rod extending through the sleeve, wherein rubber horseshoe pads are fitted onto both ends of the bolt rod near the sleeve.

[0006] Gaskets and anti-crack springs are provided between both ends of the sleeve and the two rubber horseshoe pads, and the gaskets and anti-crack springs are all sleeved on the bolt rod.

[0007] The side of the wall to be poured is symmetrically provided with pouring templates, and both ends of the bolt rod are fitted with fastening nuts on the outer side of the transverse support plate.

[0008] As a further technical solution of this utility model, the sleeve is a galvanized steel pipe, and both ends of the sleeve are in contact with the gasket through anti-crack springs. The outer side of the gasket is tightly fitted with one end of the rubber horseshoe pad, and the other end of the rubber horseshoe pad is tightly fitted with the inner side of the casting template.

[0009] As a further technical solution of this utility model, the anti-crack spring is made of steel wire with a diameter of 2mm.

[0010] As a further technical solution of this utility model, the outside of the casting template is equipped with a vertical support plate and a horizontal support plate arranged in a cross shape, and the bolt rod passes through the horizontal support plate, the vertical support plate and the casting template and passes through the wall to be cast through the sleeve.

[0011] As a further technical solution of this utility model, the casting template is made of steel template, the vertical support plate and the horizontal support plate are made of timber or square steel, and the vertical support plate and the horizontal support plate are provided with holes to facilitate the passage of bolt rods.

[0012] As a further technical solution of this utility model, the bolt rod includes a tie rod one and a tie rod two, and a plurality of extension rods are connected between the tie rod one and the tie rod two.

[0013] One end face of the first tie rod and one end face of the extension rod are integrally connected with a connecting rod. The other end of the extension rod and one end face of the second tie rod are both provided with slots. The slots and the connecting rods are matched in size and are plug-in connected.

[0014] As a further technical solution of this utility model, the outer surface of the extension rod and the second tie rod near the slot is provided with a positioning hole that communicates with the slot. The surface of the connecting rod is provided with a connecting screw hole corresponding to the positioning hole. When the connecting rod is inserted into the slot, it is screwed into the connecting screw hole on the surface of the connecting rod through the positioning hole.

[0015] As a further technical solution of this utility model, the outer surfaces of both tie rod one and tie rod two are machined with external threads that are compatible with the fastening nuts.

[0016] This utility model provides a detachable tie bolt, which has the following advantages compared with the prior art:

[0017] This design features a detachable tie rod with a detachable and splicable bolt rod design. It allows for the assembly of bolt rods of corresponding sizes according to the different thicknesses of the wall to be poured, thus increasing its application range. Moreover, when used in conjunction with sleeves, the sleeves can not only serve as internal supports for the wall, reducing the amount of reinforcing steel used in the formwork, but also facilitate the removal of the bolt rods after construction, enabling the bolt rods to be used continuously multiple times and reducing construction costs. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the installation structure of a detachable tie bolt;

[0019] Fig. 2 This is a schematic diagram showing the distribution of a detachable tie bolt during construction.

[0020] Fig. 3 This is a schematic diagram of the bolt shank in a detachable tie bolt.

[0021] In the diagram: 1. Wall to be poured; 2. Pouring formwork; 3. Vertical support plate; 4. Horizontal support plate; 5. Fastening nut; 6. Rubber horseshoe pad; 7. Washer; 8. Anti-crack spring; 9. Bolt rod; 10. Sleeve; 91. Tie rod one; 92. Tie rod two; 93. Extension rod; 94. Connecting rod; 95. Slot; 96. Connecting screw hole; 97. Positioning hole; Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figs. 1-3 This utility model provides a detachable tie rod technical solution: a detachable tie rod includes a sleeve 10 fixed inside the wall 1 to be poured and a bolt rod 9 passing through the sleeve 10. The length of the bolt rod 9 can be determined according to the thickness of the wall 1 to be poured, so that the corresponding number of extension rods 93 can be selected for assembly and splicing according to its thickness. Rubber horseshoe pads 6 are sleeved on both ends of the bolt rod 9 near the sleeve 10, and gaskets 7 are provided between both ends of the sleeve 10 and the two rubber horseshoe pads 6. The anti-crack spring 8 is made of steel wire with a diameter of 2mm. Both the washer 7 and the anti-crack spring 8 are sleeved on the bolt rod 9. The sleeve 10 is a galvanized steel pipe, and both ends of the sleeve 10 are in contact with the washer 7 through the anti-crack spring 8. The outer side of the washer 7 is tightly fitted with one end of the rubber horseshoe pad 6, and the other end of the rubber horseshoe pad 6 is tightly fitted with the inner side of the casting template 2. The anti-crack spring 8 is arranged at the two washer 7 to limit the deformation caused by shrinkage, temperature change and other factors, and reduce the occurrence of cracks in this part.

[0024] The side of the wall 1 to be poured is symmetrically provided with a pouring template 2. The pouring template 2 is made of steel. The outside of the pouring template 2 is equipped with a vertical support plate 3 and a horizontal support plate 4 arranged in a cross shape. The bolt rod 9 passes through the horizontal support plate 4, the vertical support plate 3 and the pouring template 2 and passes through the wall 1 to be poured through the sleeve 10. The vertical support plate 3 and the horizontal support plate 4 are made of wood or square steel. The vertical support plate 3 and the horizontal support plate 4 are provided with holes to facilitate the passage of the bolt rod 9. The vertical support plate 3 and the horizontal support plate 4 can reinforce the pouring template 2 to form a template reinforcement structure. The cooperation of the bolt rod 9 and the fastening nut 5 can improve the firmness of the pouring template 2 after it is erected.

[0025] Bolt rod 9 includes tie rod one 91 and tie rod two 92. Multiple extension rods 93 are connected to tie rod one 91 and tie rod two 92. A connecting rod 94 is integrally connected to one end face of tie rod one 91 and one end face of extension rod 93. A slot 95 is provided at the other end of extension rod 93 and one end face of tie rod two 92. The slot 95 and connecting rod 94 are sized to fit each other and are plug-in connected. A positioning hole 97 communicating with the slot 95 is provided on the outer surface of the end of extension rod 93 and tie rod two 92 adjacent to the slot 95. A connecting screw hole 96 is provided on the surface of connecting rod 94 corresponding to the positioning hole 97. When connecting rod 94 is inserted into slot 95, it is tightened by a screw through the positioning hole 97. The extension rod 93 is inserted into the connecting screw hole 96 on the surface of the connecting rod 94. The connection method between the extension rod 93 and the tie rod 91 and tie rod 92 is the same. The connecting rod 94 is inserted into the slot 95, and then the bolt is screwed into the connecting screw hole 96 on the surface of the connecting rod 94 through the positioning hole 97 to achieve the insertion and fixation of the two. Secondly, the assembly of multiple extension rods 93 is also in the same way, which makes it convenient to select the corresponding number of extension rods 93 according to the thickness of the wall 1 to be poured. The length of the extension rod 93 is available in different lengths such as 10cm-200cm, which can be used according to actual needs. The extension rod 93, tie rod 91 and tie rod 92 are all made of carbon 45# round steel.

[0026] Both ends of the bolt rod 9 are equipped with fastening nuts 5 on the outer side of the transverse support plate 4. The outer surfaces of the tie rod 1 91 and tie rod 2 92 are machined with external threads that are compatible with the fastening nuts 5. After the casting template 2 is supported, the casting template 2 is reinforced by the vertical support plate 3 and the transverse support plate 4. Then, the fastening nuts 5 are screwed onto both ends of the bolt rod 9 to achieve the tensioning and fastening effect of the bolt rod 9 on the casting template 2 on both sides. The fastening nuts 5 on one side can be fastened with two layers of nuts.

[0027] The working principle of this utility model is as follows: When in use, first tie the steel bars of the wall 1 to be poured, and fix the sleeve 10 inside the wall 1 to be poured. Then install the pouring template 2, the vertical support plate 3 and the horizontal support plate 4. The two ends of the sleeve 10 are aligned with the bolt holes on the pouring template 2 (i.e., the holes opened on the pouring template 2 to facilitate the passage of the bolt rod 9) through the cooperation of the rubber horseshoe pad 6 and the washer 7. Then, according to the thickness of the wall 1 to be poured, select the appropriate number of extension rods 93, splice and assemble them, and then connect the extension rods 93 and the tie rod 91 to the two ends of the assembled extension rods 93 to complete the assembly of the bolt rod 9.

[0028] Then, the bolt rod 9 passes through the casting template 2 on one side of the wall 1 to be poured, and through the sleeve 10, and comes out from the other side. Then, the bolt rod 9 is fixed at both ends (i.e., tie rod 1 91 and tie rod 2 92) with the fastening nut 5 to achieve the tie fastening of the casting templates 2 on both sides of the wall 1 to be poured, and then the concrete can be poured.

[0029] After the concrete reaches a certain strength, loosen the fastening nut 5, pull out the bolt rod 9, and then disassemble the bolt rod 9 for easy reuse. Then, grout the inside of the sleeve 10 and seal it. Finally, fill the hole in the rubber horseshoe pad 6 with mortar to repair it.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A detachable tie bolt, characterized in that, It includes a sleeve (10) fixed inside the wall to be poured (1) and a bolt rod (9) that passes through the sleeve (10). The bolt rod (9) is fitted with rubber horseshoe pads (6) at both ends of the sleeve (10) on the outside. Gaskets (7) and anti-crack springs (8) are provided between both ends of the sleeve (10) and the two rubber horseshoe pads (6), and the gaskets (7) and anti-crack springs (8) are both sleeved on the bolt rod (9); The side of the wall to be poured (1) is symmetrically provided with a pouring template (2), and both ends of the bolt rod (9) are equipped with fastening nuts (5) on the outer side of the transverse support plate (4).

2. A detachable tie bolt according to claim 1, characterized in that, The sleeve (10) is a galvanized steel pipe, and both ends of the sleeve (10) are in contact with the gasket (7) through the anti-crack spring (8). The outer side of the gasket (7) is tightly fitted with one end of the rubber horseshoe pad (6), and the other end of the rubber horseshoe pad (6) is tightly fitted with the inner side of the casting template (2).

3. A detachable tie bolt according to claim 1, characterized in that, The crack-resistant spring (8) is made of steel wire with a diameter of 2mm.

4. A detachable tie bolt according to claim 1, characterized in that, The outside of the casting template (2) is equipped with a vertical support plate (3) and a horizontal support plate (4) arranged in a cross shape. The bolt rod (9) passes through the horizontal support plate (4), the vertical support plate (3) and the casting template (2) and passes through the wall to be cast (1) through the sleeve (10).

5. A detachable tie bolt according to claim 4, characterized in that, The casting template (2) is made of steel template, and the vertical support plate (3) and the horizontal support plate (4) are made of timber or square steel. The vertical support plate (3) and the horizontal support plate (4) are provided with holes to facilitate the passage of bolt rods (9).

6. A detachable tie bolt according to claim 1, characterized in that, The bolt rod (9) includes a first tie rod (91) and a second tie rod (92), and a plurality of extension rods (93) are connected between the first tie rod (91) and the second tie rod (92). One end face of the first pull rod (91) and one end face of the extension rod (93) are integrally connected with a connecting rod (94). The other end of the extension rod (93) and one end face of the second pull rod (92) are provided with slots (95). The slots (95) and the connecting rods (94) are matched in size and are plugged in.

7. A detachable tie bolt according to claim 6, characterized in that, The extension rod (93) and the second tie rod (92) are both provided with a positioning hole (97) that is connected to the slot (95) on the outer surface of one end of the extension rod (93). The connecting rod (94) is provided with a connecting screw hole (96) on the surface corresponding to the positioning hole (97). When the connecting rod (94) is inserted into the slot (95), it is screwed into the connecting screw hole (96) on the surface of the connecting rod (94) through the positioning hole (97).

8. A detachable tie bolt according to claim 6, characterized in that, The outer surfaces of both tie rod one (91) and tie rod two (92) are machined with external threads that are compatible with the fastening nut (5).

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