CN217232742U - A locking device for stair formwork used in building construction - Google Patents

Abstract

The utility model discloses a locking device of stair template for construction belongs to template locking device field. The utility model discloses a locking device of stair template for construction, including expansion bracket and end connection and suppression device, the both ends of expansion bracket are the hinged joint respectively has end connection, and the termination department hinge of downside is connected with the suppression device on the expansion bracket. The utility model provides a current retaining member list setting, need install one by one during the use, elasticity and position interval when influence work efficiency and installation need artificial control, it is different to the application pressure of stair template to cause the retaining member in the different positions easily, the problem of certain influence is caused to the use of stair template, through the suppression device of expansion bracket connection longitudinal symmetry distribution, can adjust the clamping distance of suppression device, realize multiunit suppression device simultaneous working, conveniently realize whole locking to the stair template, do not need single installation, high work efficiency.

Description

A locking device for stair formwork used in building construction

technical field

The utility model relates to the technical field of formwork locking devices, in particular to a locking device for stair formwork used in building construction.

Background technique

The traditional method of stair step formwork is to use formwork and square wood to be directly assembled with iron nails and stair side boards. Each stair needs to be repeatedly produced and installed. In the construction of these existing stairs, iron nails are required to fix it. This method , it is very inconvenient to disassemble the template, and the template fixed by iron nails is inconvenient to be used again, which wastes materials.

Chinese patent CN209066866U discloses a concrete stair construction device, specifically a closed stair formwork structure of quick assembly and disassembly tool type, including square wood, bottom formwork, side plate, and a locking member is arranged between the side plate and the bottom formwork, and the two There are several groups of foot pedal groups between the side plates, the foot pedal group includes a panel and a baffle plate, the adjacent two groups of foot pedal groups are vertically arranged, and a fastener is arranged between the two side walls. By placing the bottom formwork on the square wood, the side boards are placed on both sides on the upper surface of the bottom formwork, the side boards and the bottom formwork are locked by locking pieces, and a foot pedal group is arranged between the two sets of side boards, Set the panel and the baffle vertically, and clamp the foot pedal group between the two sets of side boards through fasteners. The side board and the foot board group are fastened between the two sets of side boards, and do not need to be fixed by iron nails, which improves the repeated use of various templates and speeds up the installation efficiency of the templates.

Although this application solves the problems in the background technology to a certain extent, there are the following problems in this application: 1. The stair formwork is fixed by the locking member, and the locking member is set individually, which needs to be installed one by one during use, which affects the work efficiency; 2. . The tightness and position interval during installation need to be controlled manually, which is likely to cause different pressures on the stair formwork by the locking parts at different positions, which will have a certain impact on the use of the stair formwork.

Utility model content

1. Technical problems to be solved by the utility model

The purpose of the utility model is to overcome the fact that the stair formwork in the prior art is fixed by locking pieces, the locking pieces are set individually, and need to be installed one by one when in use, which affects work efficiency and requires manual control for the tightness and position interval during installation, which is easy to cause different positions. The above locking parts exert different pressures on the stair formwork, which has a certain influence on the use of the stair formwork. A locking device for the stair formwork for building construction is provided to solve the above shortcomings.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the present utility model is:

The utility model relates to a locking device for a stair formwork for building construction, comprising a telescopic frame, an end connecting piece and a pressing device; A pressing device is hingedly connected at the place, and the end connecting piece includes a first control rod and a second control rod, the first control rod and the second control rod are hingedly connected, and the first control rod and the second control rod are respectively connected with the telescopic frame One end of the hinged shaft is hingedly connected, and the pressing device includes a hinged shaft, an extension shaft, a connecting shaft and a prismatic pressed part. The shaft, the connecting shaft is movably connected with the prismatic pressing part.

Preferably, a protruding block is fixedly connected to one end of the first control rod away from the telescopic frame, and a movable circular hole is opened on the protruding block.

Preferably, a limit ring is provided on the side wall of one end of the second control rod away from the telescopic frame, and the limit ring penetrates the movable circular hole.

Preferably, the position of the center of the limit ring is on the center line of the hinge of the first control rod and the second control rod, the limit ring is provided with an external thread, and the external thread is engaged with a locking screw.

Preferably, a limit chute is provided on the connecting shaft, and the limit chute is movably connected with the prismatic pressed piece.

Preferably, one end of the prismatic pressing piece is provided with a rotating groove, the rotating groove is sleeved with the connecting shaft, the inner wall of the rotating groove is fixedly connected with a limit slider, and the limit slider is movably connected with the limit chute.

Preferably, the prismatic pressing piece is provided with a pressing surface, the pressing surface is connected with a non-slip rubber pad, and the thickness of the non-slip rubber pad on different pressing surfaces is different.

Preferably, a through hole is provided at the hinge joint of the first control rod and the second control rod, a threaded rod is connected through the through hole, and both ends of the threaded rod are provided with locking nuts.

3. Beneficial effects

Compared with the prior art, the technical scheme provided by the present utility model has the following beneficial effects:

(1), a kind of locking device of the stair formwork for building construction of the present invention, connects the pressing device symmetrically distributed up and down through the telescopic frame, controls the stretching position of the telescopic frame, can adjust the clamping distance of the pressing device, realizes multiple The group pressing devices work at the same time, which is convenient for the overall locking of the stair formwork, no need for individual installation, high work efficiency, and can be folded as a whole when not in use, which is convenient for collection;

(2) A locking device for a stair formwork for building construction of the present invention, the two ends of the telescopic frame are provided with a first control rod and a second control rod, and the first control rod and the second control rod are used to realize the locking of the telescopic frame. The first control rod and the second control rod are provided with two groups to prevent the deformation of the telescopic frame and ensure that the pressing force of the prismatic pressing parts on the stair formwork is more uniform;

(3) A locking device for a stair formwork for building construction according to the present utility model, the connecting shaft is movably connected with the prismatic pressing piece, the prismatic pressing piece is a rotatable structure, and the prismatic pressing piece is provided with a pressing surface, and the pressing There are non-slip rubber pads connected on the surface. The thickness of the anti-slip rubber pads on different pressing surfaces is different. It can be selected according to different stair formwork in actual use. Different thicknesses of anti-slip rubber pads can be selected to meet the needs of different stair formwork shapes. regulation;

(4) The locking device of the stair formwork for building construction of the present invention can connect multiple sets of locking devices by adding a threaded rod structure, which is convenient for fixing the entire stair formwork.

Description of drawings

Fig. 1 is the overall structure diagram of the utility model;

2 is a structural diagram of a first control rod of the present invention;

3 is a structural diagram of a second control rod of the present invention;

4 is a structural diagram of a pressing device of the present invention;

FIG. 5 is a structural diagram of the second embodiment of the present invention.

In the figure: 1, telescopic frame; 2, end connector; 21, first control rod; 211, protruding block; 22, second control rod; 221, limit ring; 222, locking coil; 3, Pressing device; 31, hinge shaft; 32, extension shaft; 33, connecting shaft; 331, limit chute; 34, prismatic pressing part; 341, rotating groove; 4, threaded rod; 41, locking nut.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In order to further understand the content of the present utility model, the present utility model is described in detail with reference to the accompanying drawings.

The present utility model will be further described below in conjunction with the embodiments.

Example 1

1 to 4, a locking device for a stair formwork for building construction of the present invention includes a telescopic frame 1, an end connector 2 and a pressing device 3, and both ends of the telescopic frame 1 are hinged with ends respectively. For the connecting piece 2 , a pressing device 3 is hingedly connected to the end points of the upper and lower sides of the telescopic frame 1 .

The end connector 2 includes a first control rod 21 and a second control rod 22, the first control rod 21 and the second control rod 22 are hingedly connected, and the first control rod 21 and the second control rod 22 are respectively connected with the telescopic frame 1. One end is hingedly connected, and one end of the first control rod 21 away from the telescopic frame 1 is fixedly connected with a protruding block 211 . The extension piece, when the telescopic frame 1 and the end connecting piece 2 are folded, the extension piece reserves a place for the locking coil 222, so that the telescopic frame 1 and the end connecting piece 2 can be folded to a minimum volume, saving space , a limit ring 221 is arranged on the side wall of one end of the second control rod 22 away from the telescopic frame 1, the limit ring 221 penetrates the movable circular hole, and the center of the limit ring 221 is hinged between the first control rod 21 and the second control rod 22 On the center line of the circle, when the first control rod 21 and the second control rod 22 rotate, the limit ring 221 always moves in the movable circular hole, the limit ring 221 is provided with an external thread, and the external thread is engaged with a locking screw. Ring 222, the locking screw 222 is arranged on the side of the protruding block 211 close to the extension piece, when the first control rod 21 and the second control rod 22 rotate to the required angle, screw the locking screw 222 to the same position as the protrusion. The protruding blocks 211 fit together, thereby fixing the moving position of the protruding blocks 211, and the distance between the prismatic pressing parts 34 at the upper and lower positions cannot be enlarged, thereby realizing the pressing of the stair formwork.

The pressing device 3 includes a hinge shaft 31, an extension shaft 32, a connecting shaft 33 and a prismatic pressed part 34. The hinge shaft 31 is hinged to the telescopic frame 1, one end of the hinge shaft 31 is fixedly connected to the extension shaft 32, and one end of the extension shaft 32 is fixed A connecting shaft 33 is connected, the connecting shaft 33 is movably connected with the prismatic pressing piece 34, a limit chute 331 is provided on the connecting shaft 33, and the limiting chute 331 is movably connected with the prismatic pressing piece 34, one end of the prismatic pressing piece 34 is A rotating groove 341 is provided, the rotating groove 341 is sleeved with the connecting shaft 33, the inner wall of the rotating groove 341 is fixedly connected with a limit slider, the limit slider is movably connected with the limit chute 331, and the prismatic pressed part 34 cannot be disconnected from the connection shaft 33, but the prismatic pressing piece 34 can rotate on the connecting shaft 33, which is convenient for the prismatic pressing piece 34 to turn over the pressing surface on the connecting shaft 33. Rubber pads, the thickness of the non-slip rubber pads on different pressing surfaces is different, which can be selected according to different stair formwork in actual use, and different thicknesses of anti-slip rubber pads can be selected to meet the needs of different stair formwork shapes.

Working process: When using, assemble the stair formwork as required, the pressing device 3 is placed on the upper and lower sides of the assembled stair formwork, select the pressing surface where the prismatic pressing part 34 contacts the stair formwork, and rotate the pressing surface to close to the stair formwork. On one side of the stair formwork, by pressing the prismatic pressed parts 34 at the upper and lower positions, the prismatic pressed parts 34 on the upper and lower sides of the stair formwork are brought close, the telescopic frame 1 is pressed into a long strip, and the corresponding prismatic pressed parts 34 are respectively fixed to the stairs. On the upper and lower sides of the template, the first control rod 21 and the second control rod 22 are rotated, and the locking screw 222 is screwed to fit with the protruding block 211, thereby fixing the moving position of the protruding block 211. The distance between the pressed parts 34 cannot be enlarged, so as to realize the pressing of the stair formwork, the prismatic pressed parts 34 on the same side of the stair formwork are distributed at equal distances, and the prismatic pressed parts 34 are integrally connected by the telescopic frame The pressing part 34 applies force evenly.

Example 2

5 , in this embodiment, a through hole is provided at the hinge of the first control rod 21 and the second control rod 22 , a threaded rod 4 is connected through the through hole, and both ends of the threaded rod 4 are provided with locking The nut 41 can be connected with two locking devices through the threaded rod 4, and the two locking devices are fixed by the threaded rod 4, and the entire stair formwork can be fixed, and other structures are the same as the first embodiment.

Working process: After locking the locking device with the two sides of the stair formwork, the through holes extend out of the end of the stair formwork, and the threaded rods 4 penetrate through the through holes on the two locking structures, and are tightened through the locking nuts 41. , to fix two locking devices to fix the entire stair formwork.

To sum up, the locking device of the stair formwork for building construction of the present invention connects the pressing devices 3 symmetrically distributed up and down through the telescopic frame 1, controls the stretching position of the telescopic frame 1, and can adjust the clamping device of the pressing device 3. Keep the distance, so that multiple sets of pressing devices 3 can work at the same time, which is convenient to realize the overall locking of the stair formwork, does not require individual installation, and has high work efficiency. When not in use, it can be folded as a whole, which is convenient for collection; The first control rod 21 and the second control rod 22 realize the locking of the telescopic frame 1 through the first control rod 21 and the second control rod 22, and there are two groups of the first control rod 21 and the second control rod 22, Prevent the deformation of the telescopic frame 1, and ensure that the pressing force of the prismatic pressed part 34 on the stair formwork is more uniform; the connecting shaft 33 is movably connected with the prismatic pressed part 34, and the prismatic pressed part 34 is a rotatable structure. There is a pressing surface, and the pressing surface is connected with a non-slip rubber pad. The thickness of the non-slip rubber pad on different pressing surfaces is different. It can be selected according to different stair templates in actual use. The shape of the stair formwork is required, and it is easy to adjust; by adding the threaded rod 4 structure, multiple sets of locking devices can be connected to facilitate the fixing of the entire stair formwork.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A locking device for a stair formwork for building construction, comprising a telescopic frame (1), an end connector (2) and a pressing device (3), characterized in that: the two ends of the telescopic frame (1) are respectively An end connecting piece (2) is hingedly connected, a pressing device (3) is hingedly connected to the end points of the upper and lower sides of the telescopic frame (1), and the end connecting piece (2) comprises a first control rod (21) and a second control rod (21). A control rod (22), the first control rod (21) and the second control rod (22) are hingedly connected, and the first control rod (21) and the second control rod (22) are respectively hinged with one end of the telescopic frame (1) connection, the pressing device (3) comprises a hinge shaft (31), an extension shaft (32), a connecting shaft (33) and a prismatic pressing piece (34), the hinge shaft (31) is hingedly connected with the telescopic frame (1), One end of the hinge shaft (31) is fixedly connected with the extension shaft (32), one end of the extension shaft (32) is fixedly connected with a connecting shaft (33), and the connecting shaft (33) is movably connected with the prismatic pressing piece (34). 2. The locking device for a stair formwork for building construction according to claim 1, wherein one end of the first control rod (21) away from the telescopic frame (1) is fixedly connected with a protruding block (211) ), the protruding block (211) is provided with a movable circular hole. 3. The locking device of a stair formwork for building construction according to claim 2, wherein a limit ring ( 221), the limit ring (221) penetrates the movable circular hole. 4. The locking device for a stair formwork for building construction according to claim 3, wherein the center of the limiting ring (221) is at the position of the first control rod (21) and the second control rod ( 22) On the center line of the hinged joint, an outer thread is provided on the limit ring (221), and a locking screw ring (222) is engaged with the outer thread. 5. The locking device of a stair formwork for building construction according to claim 1, wherein the connecting shaft (33) is provided with a limit chute (331), and the limit chute (331) is connected to the limit chute (331). The prismatic pressed part (34) is articulated. 6 . The locking device for a stair formwork for building construction according to claim 5 , wherein a rotating groove ( 341 ) is provided at one end of the prismatic pressing piece ( 34 ), and the rotating groove ( 341 ) and the The connecting shaft (33) is sleeved, the inner wall of the rotating groove (341) is fixedly connected with a limit slider, and the limit slider is movably connected with the limit chute (331). 7. A locking device for a stair formwork for building construction according to claim 6, characterized in that: a pressing surface is provided on the prismatic pressing piece (34), and a non-slip rubber pad is connected to the pressing surface, and different The thickness of the non-slip rubber pad on the pressing surface is different. 8 . The locking device for a stair formwork for building construction according to claim 1 , wherein a through hole is provided at the hinge of the first control rod (21) and the second control rod (22). 9 . A threaded rod (4) is connected through the through hole, and locking nuts (41) are provided at both ends of the threaded rod (4).

Images