Connecting and locking device of building template

Abstract

The utility model provides a connecting and locking device of a building template, which relates to the field of building templates, and comprises mutually hinged connecting rods, each connecting rod is divided into connecting parts at two ends and an extending part in the middle, one end, far away from the extending part, of each connecting part is provided with a hinge joint, and the hinge joints are connected with the connecting parts. The extension part comprises a fixed block, a threaded groove is formed in the middle of the fixed block, a threaded shaft is in threaded connection with the interior of the threaded groove, the threaded shaft is rotationally connected with the extension part, a through hole parallel to the threaded groove is formed in the middle of the fixed block, and a sliding rod is slidably connected with the interior of the through hole; and the sliding rod is fixedly connected with the extension part. According to the connecting and locking device of the building formwork, the multiple connecting rods are hinged to one another, the length of each connecting rod can be adjusted in the middle of the corresponding connecting rod, the connecting and locking device can be matched with formworks of different shapes through bending, and the problem that in the prior art, formworks can only be fixed in a symmetrical clamping mode is solved.

Description

Technical Field

[0001] This utility model relates to the field of building formwork technology, specifically a connection and locking device for building formwork. Background Technology

[0002] Construction formwork is a temporary support structure, manufactured according to design requirements, to shape concrete structures and components into specified positions and geometric dimensions, maintain their correct position, and bear the self-weight of the formwork and external loads acting on it. The purpose of formwork engineering is to ensure the quality and safety of concrete projects, accelerate construction progress, and reduce project costs.

[0003] A current CN212802561U describes a connecting and locking device for building formwork, comprising a first locking plate locked to the front of the building formwork and a second locking plate that cooperates with the first locking plate and locks to the back of the building formwork. Both the first and second locking plates include a connecting plate and an adjusting plate. The connecting plate has an integrally formed horizontal plate inside, with an internally threaded tube on one side. The front and back of the connecting plate have through holes corresponding to and communicating with the internally threaded tube, which are secured by screw-in components. The other side of the horizontal plate has a lateral movement opening. This technical solution has a simple structure, is easy to adjust flexibly according to the thickness and connection width of the building formwork, and is easy to install. However, this locking device requires the formwork to be parallel to each other, making it unusable when encountering polygonal formwork structures. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a connecting and locking device for building formwork, which solves the problem of needing symmetrical formwork when fixing it, as mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connecting and locking device for building templates, comprising connecting rods that are hinged to each other. The connecting rods are divided into connecting parts at both ends and an extension part in the middle. A hinge joint is provided at the end of the connecting part away from the extension part. Adjacent hinge joints are hinged together by a pin. The extension part includes a fixing block. A threaded groove is provided in the middle of the fixing block. A threaded shaft is threadedly connected inside the threaded groove. The threaded shaft is rotatably connected to the extension part. A through hole parallel to the threaded groove is provided in the middle of the fixing block. A sliding rod is slidably connected inside the through hole. The sliding rod is fixedly connected to the extension part.

[0007] Furthermore, an adjustment part is fixedly installed on the inner side of the fixing block and the inner side of the connecting part, and two adjustment parts are symmetrically arranged on the inner side of the fixing block.

[0008] Furthermore, the adjustment part includes a stepped slot fixedly installed inside the fixed block and inside the connecting part, and a plug is inserted into the inside of the stepped slot.

[0009] Furthermore, the adjusting part includes a threaded sleeve fixedly installed inside the fixing block and inside the connecting part, and the threaded sleeve is internally threaded with a threaded push rod.

[0010] Furthermore, the pin includes an insertion part, the top end of which is provided with a cover part, and the bottom end of the insertion part is provided with a threaded hole perpendicular to the insertion part, and a screw is threaded into the inside of the threaded hole.

[0011] Furthermore, a gear is rotatably connected to the middle of the fixed block, and rack plates mesh with the upper and lower sides of the gear. The rack plates are fixedly connected to the connecting part. A rotating shaft is fixedly installed on the gear, and the rotating shaft extends to the outside of the fixed block. A baffle is fixedly installed at one end of the rotating shaft located on the outside of the fixed block. A fixed plate centered on the rotating shaft is fixedly installed on the outside of the fixed block, and a threaded rod for pressing the baffle is threadedly connected to the middle of the fixed plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The connecting and locking device for the building formwork, by hinged multiple connecting rods together, allows for adjustment of the length of each connecting rod in the middle. It can be adapted to formwork of different shapes by bending, solving the problem that in the prior art, formwork can only be fixed by symmetrical clamping.

[0014] 2. The connecting and locking device of the building formwork includes a pin shaft with an insertion part. The top of the insertion part is provided with a cover part, and the bottom of the insertion part is provided with a threaded hole perpendicular to the insertion part. The threaded hole is internally threaded with a screw. This arrangement facilitates the insertion of the pin shaft and limits its movement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a half-sectional view of the pin shaft of this utility model;

[0017] Figure 3 This is a schematic diagram of the threaded shaft connection of this utility model;

[0018] Figure 4 This is a schematic diagram of the rack and pinion plate connection of this utility model;

[0019] Figure 5 This is a schematic diagram of the gear connection of this utility model.

[0020] Among them, 1 is a connecting rod; 101 is a connecting part; 12 is an extension part; 103 is a hinge joint; 14 is a pin; 121 is a fixing block; 122 is a threaded groove; 123 is a threaded shaft; 124 is a through hole; 125 is a sliding rod; 15 is an adjusting part; 151 is a stepped slot; 152 is an insert block; 153 is a threaded sleeve; 154 is a threaded push rod; 141 is an insert part; 142 is a cover part; 143 is a threaded hole; 144 is a screw; 126 is a gear; 127 is a rack plate; 128 is a rotating shaft; 129 is a baffle; 130 is a fixing plate; and 131 is a threaded rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1, see reference Figures 1-5 A connecting and locking device for building formwork includes connecting rods 1 that are hinged to each other. Each connecting rod 1 has two connecting portions 101 at both ends and an extension portion 12 in the middle. A hinge joint 103 is provided at the end of each connecting portion 101 away from the extension portion 12. Adjacent hinge joints 103 are hinged together by pins 14. The extension portion 12 includes a fixing block 121. A threaded groove 122 is formed in the middle of the fixing block 121. A threaded shaft 123 is threadedly connected inside the threaded groove 122. The length can be changed by rotating the threaded shaft 123. The threaded shaft 123 is rotatably connected to the extension portion 12. A through hole 124 parallel to the threaded groove 122 is formed in the middle of the fixing block 121. A sliding rod 125 is slidably connected inside the through hole 124 and is fixedly connected to the extension portion 12. By hinged multiple connecting rods 1 together, different shaped formwork can be adapted by bending, solving the problem that in the prior art, formwork can only be fixed by symmetrical clamping.

[0023] An adjustment part 15 is fixedly installed on the inner side of the fixing block 121 and the inner side of the connecting part 101. Two adjustment parts 15 are symmetrically arranged on the inner side of the fixing block 121. With this arrangement, the distance between the device and the template can be adjusted by the adjustment part 15, so that the template can be squeezed by the adjustment part 15.

[0024] The adjustment part 15 includes a stepped slot 151 fixedly installed inside the fixed block 121 and inside the connecting part 101. A plug 152 is inserted into the stepped slot 151. With this arrangement, the position of the plug 152 in the stepped slot 151 can be changed, thereby achieving adjustment. This adjustment method is relatively simple.

[0025] The adjustment part 15 includes a threaded sleeve 153 fixedly installed inside the fixing block 121 and inside the connecting part 101. The threaded sleeve 153 is threadedly connected to a threaded push rod 154. This arrangement enables adjustment of any height.

[0026] The pin 14 includes a plug portion 141, a cover portion 142 is provided at the top end of the plug portion 141, and a threaded hole 143 perpendicular to the plug portion 141 is provided at the bottom end of the plug portion 141. A screw 144 is threaded inside the threaded hole 143. This arrangement facilitates the plugging of the pin 14 and limits the position of the pin 14.

[0027] In embodiment 2, a gear 126 is rotatably connected to the middle of the fixed block 121. A rack plate 127 meshes with the upper and lower sides of the gear 126. The rack plate 127 is fixedly connected to the connecting part 101. A rotating shaft 128 is fixedly installed on the gear 126. The rotating shaft 128 extends to the outside of the fixed block 121. A baffle 129 is fixedly installed at one end of the rotating shaft 128 located outside the fixed block 121. A fixed plate 130 centered on the rotating shaft 128 is fixedly installed on the outside of the fixed block 121. A threaded rod 131 for pressing the baffle 129 is threadedly connected to the middle of the fixed plate 130. With this arrangement, the rotation of the baffle 129 can drive the gear 126 to move the rack plate 127 to both sides, thereby adjusting the length. After adjustment, the end of the threaded rod 131 contacts the baffle 129 by rotating the threaded rod 131, restricting the rotation of the baffle 129.

[0028] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connecting and locking device for building formwork, comprising a connecting bar (1) hinged to each other, characterized in that: The connecting rod (1) is divided into two end connecting parts (101) and a middle extension part (12), the connecting part (101) is provided with a hinge joint (103) away from one end of the extension part (12), and the adjacent hinge joints (103) are hinged through a pin shaft (14); The extension part (12) comprises a fixed block (121), a threaded groove (122) is formed in the middle of the fixed block (121), a threaded shaft (123) is threadedly connected in the threaded groove (122), the threaded shaft (123) is rotatably connected with the extension part (12), a through hole (124) parallel to the threaded groove (122) is formed in the middle of the fixed block (121), a sliding rod (125) is slidably connected in the through hole (124), and the sliding rod (125) is fixedly connected with the extension part (12).

2. A connecting and locking device for building formworks according to claim 1, characterized in that: The inner side of the fixed block (121) and the inner side of the connecting part (101) are fixedly installed with an adjusting part (15), and two adjusting parts (15) are symmetrically arranged on the inner side of the fixed block (121).

3. A connecting and locking device for building formworks according to claim 2, characterized in that: The adjusting part (15) comprises a stepped slot (151) fixedly installed on the inner side of the fixed block (121) and the inner side of the connecting part (101), and a plug block (152) is inserted in the stepped slot (151).

4. The connecting and locking device of a building template according to claim 2, characterized in that: The adjusting part (15) comprises a threaded sleeve (153) fixedly installed on the inner side of the fixed block (121) and the inner side of the connecting part (101), and a threaded top rod (154) is threadedly connected in the threaded sleeve (153).

5. A connecting and locking device for building formworks according to any one of claims 2-4, characterized in that: The pin shaft (14) comprises a plug-in part (141), the top end of the plug-in part (141) is provided with a covering part (142), the bottom end of the plug-in part (141) is provided with a threaded hole (143) perpendicular to the plug-in part (141), and a screw (144) is threadedly connected in the threaded hole (143).

6. A connecting and locking device for building formworks according to claim 5, characterized in that: The middle of the fixed block (121) is rotatably connected with a gear (126), the upper and lower sides of the gear (126) are engaged with a rack plate (127), the rack plate (127) is fixedly connected with the connecting part (101), the gear (126) is fixedly installed with a rotating shaft (128), the rotating shaft (128) extends to the outside of the fixed block (121), one end of the rotating shaft (128) located outside the fixed block (121) is fixedly installed with a baffle (129), the outside of the fixed block (121) is fixedly installed with a fixed plate (130) with the rotating shaft (128) as the center, and the middle of the fixed plate (130) is threadedly connected with a threaded rod (131) for extruding the baffle (129).

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