Adjustable reserved hole template device

Abstract

The utility model discloses an adjustable reserved hole template device. The adjustable reserved hole template device comprises four connecting pipes, four elastic buckles, a rotating shaft, a shaft sleeve and a connecting rod, the connecting pipe is L-shaped, the first end of the connecting pipe is an outer square pipe, and the second end of the connecting pipe is an inner square pipe; the four elastic buckles are respectively mounted in the inner square pipes of the four connecting pipes; a plurality of limiting holes are uniformly formed in one side wall of the outer square tube along a straight line, and the clamping block is clamped into one limiting hole; one part of the side wall of the shaft sleeve is connected with one end of the outer square tube, the first end of the connecting rod penetrates through the rotating groove and then is connected with the side wall of the rotating shaft, and the second end of the connecting rod is connected with one end of the inner square tube. According to the utility model, the expansion device is adopted to support the butt joint of the templates, and the template device is more stable by utilizing the principle that the immediate triangle is more stable, so that the deformation is avoided; the outer square pipe and the inner square pipe of the connecting pipe are rotatably matched through the rotating shaft and the shaft sleeve, so that the formwork device can be matched with various special-shaped reserved holes.

Description

Technical Field

[0001] The utility model relates to the technical field of formwork installation, in particular to an adjustable reserved hole formwork device. Background Technique

[0002] In various civil construction projects, especially in building construction projects, ventilation openings, window openings, etc. need to be reserved in flues, water supply wells, wall-piercing air ducts, and even concrete walls according to construction needs for the subsequent project development. At present, construction sites and laminated slab manufacturers basically use wooden forms or foam plastics as reserved hole formworks. Both methods have obvious defects. Using the wooden form method to make boxes is very time-consuming and laborious. The hole sizes on site are diverse, and a large number of each type need to be made. Moreover, it is easy to be damaged during form removal and difficult to turnover. Using foam boards is limited in size (generally only applicable to holes below 50 cm), with poor forming quality. One foam board can only be used once, and there is a large amount of waste material without turnover, causing relatively serious environmental pollution.

[0003] Therefore, it is necessary to develop an adjustable reserved hole formwork device to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to design an adjustable reserved hole formwork device to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] The adjustable reserved hole formwork device includes:

[0007] Four connecting pipes; the connecting pipes are formed in an L shape. The first end of the connecting pipe is an outer square pipe, and the second end is an inner square pipe. The inner diameter of the inner square pipe is smaller than that of the outer square pipe. The four connecting pipes enclose a rectangle, and adjacent two connecting pipes are connected through the outer square pipe and the inner square pipe;

[0008] Four elastic buckles; the four elastic buckles are respectively installed in the inner square pipes of the four connecting pipes. The elastic buckle includes a spring and a clamping block. The first end of the spring is fixedly installed on the inner wall of the first side of the inner square pipe. There is a telescopic opening on the second side of the inner square pipe. The first side and the second side of the inner square pipe are opposite sides. The clamping block is telescopically placed in the telescopic opening, and the bottom of the clamping block is connected to the second end of the spring; a plurality of limiting holes are uniformly arranged along a straight line on one side wall of the outer square pipe. When the inner square pipe is inserted into the outer square pipe, the clamping block is clamped into a limiting hole.

[0009] Specifically, the connecting pipe further includes a rotating shaft, a shaft sleeve, and a connecting rod. The rotating shaft is rotatably installed in the shaft sleeve. The shaft sleeve is vertically arranged. A part of the side wall of the shaft sleeve is connected to one end of the outer square pipe. A rotating groove is circumferentially arranged on the shaft sleeve. The first end of the connecting rod passes through the rotating groove and is connected to the side wall of the rotating shaft. The second end of the connecting rod is connected to one end of the inner square pipe.

[0010] Further, a first connecting plate is provided on the inner wall of each connecting pipe. Four first connecting plates enclose a rectangle, and two first connecting plates located diagonally are connected by a telescopic device.

[0011] Specifically, the telescopic device includes a first connecting cylinder, a second connecting cylinder, and a threaded sleeve. The diameter of the second connecting cylinder is smaller than that of the first connecting cylinder. The first end of the second connecting cylinder is inserted into the first end of the first connecting cylinder. An external thread is provided on the first end of the first connecting cylinder, and a plurality of telescopic slits are axially provided on the first end of the first connecting cylinder. An internal thread is provided on the inner wall of the threaded sleeve. The first end of the first connecting cylinder is in threaded fit with the threaded sleeve. Limit rods are provided on the first ends of the first connecting cylinder and the second connecting cylinder respectively. The limit rods are perpendicular to the first connecting cylinder and the second connecting cylinder respectively. Correspondingly, connecting holes are provided on the first connecting plate, and the limit rods are inserted into the connecting holes.

[0012] Further, the template device further includes four pins. A pin hole is vertically provided on the clamping block. After the clamping block is clamped into the limit hole, the pin hole is located outside the outer square pipe, and the pin is inserted into the pin hole.

[0013] Furthermore, the template device further includes an elastic connecting rope. The first end of the elastic connecting rope is connected to the outer wall of the outer square pipe of each connecting pipe, and the second end of the elastic connecting rope is connected to one end of the pin.

[0014] Preferably, a second connecting plate is further connected to each connecting pipe. A connecting hole is vertically provided on the second connecting plate. Correspondingly, a screw hole is provided on the template. A bolt passes through the connecting hole and is screwed into the screw hole to connect the second connecting plate and the template.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The telescopic device is used to support the butt joint of the template. By utilizing the principle that an immediate triangle is more stable, the template device is made more stable and deformation is avoided.

[0017] The outer square pipe and the inner square pipe of the connecting pipe are rotatably matched through a rotating shaft and a shaft sleeve, so that the template device can be adapted to various special-shaped reserved holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 is a schematic structural diagram of Embodiment 2 of the present utility model;

[0020] Figure 3 is a schematic diagram of the use of the elastic buckle in the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the elastic buckle in the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the cooperation between the rotating shaft and the shaft sleeve in the present utility model;

[0023] Figure 6 It is a schematic structural diagram of the telescopic device in the present utility model.

[0024] In the figure: 1, connecting pipe; 2, outer square pipe; 3, first connecting plate; 4, inner square pipe; 5, elastic buckle; 6, connecting hole; 7, plug pin; 8, first connecting cylinder; 9, threaded sleeve; 10, second connecting plate; 11, limiting hole; 12, clamping block; 13, pin hole; 14, rotating shaft; 15, shaft sleeve; 16, spring; 17, telescopic opening; 18, connecting rod; 19, second connecting cylinder; 20, limiting rod. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, 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 some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the scope of protection of the present utility model.

[0027] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0029] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0032] Embodiment 1:

[0033] As Figure 1 and 2 and shown in FIG. 4, an adjustable reserved hole formwork device includes:

[0034] Four connecting pipes 1; the connecting pipe 1 is formed into an L shape (which can also be understood as a bent structure). The first end of the connecting pipe 1 is an outer square pipe 2, and the second end is an inner square pipe 4. The inner diameter of the inner square pipe 4 is smaller than the inner diameter of the outer square pipe 2. The four connecting pipes 1 enclose a rectangle, and adjacent two connecting pipes 1 are connected through the outer square pipe 2 and the inner square pipe 4;

[0035] Four elastic buckles 5; the four elastic buckles 5 are respectively installed in the inner square pipes 4 of the four connecting pipes 1. The elastic buckle 5 includes a spring 16 and a clamping block 12. The first end of the spring 16 is fixedly installed on the inner wall of the first side of the inner square pipe 4. An expansion port 17 is provided on the second side of the inner square pipe 4. The first side and the second side of the inner square pipe 4 are opposite sides. The clamping block 12 is telescopically placed in the expansion port 17, and the bottom of the clamping block 12 is connected to the second end of the spring 16; A plurality of limiting holes 11 are uniformly arranged along a straight line on one side wall of the outer square pipe 2. When the inner square pipe 4 is inserted into the outer square pipe 2, the clamping block 12 is snapped into one of the limiting holes 11. Preferably, the clamping block 12 is formed into a cylindrical structure, and the head on the outside of the clamping block 12 is formed into a semi-circular shape.

[0036] During operation, insert the head of the inner square pipe 4 of one connecting pipe 1 into the outer square pipe 2 of another connecting pipe 1, then press the clamping block 12 inward against the elastic force of the spring 16 until the inner square pipe 4 can be further inserted into the outer square pipe 2. According to the desired matching distance between the inner square pipe 4 and the outer square pipe 2, pop the clamping block 12 out of one of the limiting holes 11 and clamp it tightly at an appropriate position. Perform such operations on all four connecting pipes 1 to obtain the desired formwork device size. It should be noted that the assembly of the clamping blocks 12 on the opposite sides needs to be carried out simultaneously.

[0037] Embodiment 2:

[0038] As Figure 2 and 5 shown, different from Embodiment 1, the connecting pipe 1 further includes a rotating shaft 14, a shaft sleeve 15, and a connecting rod 18. The rotating shaft 14 is rotatably installed in the shaft sleeve 15. The shaft sleeve 15 is vertically arranged. One part of the side wall of the shaft sleeve 15 is connected to one end of the outer square pipe 2. A rotating groove is circumferentially formed on the shaft sleeve 15. The first end of the connecting rod 18 passes through the rotating groove and is connected to the side wall of the rotating shaft 14. The second end of the connecting rod 18 is connected to one end of the inner square pipe 4.

[0039] During operation, the included angle between the inner square pipe 4 and the outer square pipe 2 of the connecting pipe 1 can be adjusted as needed. During the adjustment process, only the inner square pipe 4 and the outer square pipe 2 need to be relatively twisted to make the rotating shaft 14 and the shaft sleeve 15 rotate relative to each other. It should be noted that preferably, there is a rotational damping between the rotating shaft 14 and the shaft sleeve 15, that is, when the rotating shaft 14 and the shaft sleeve 15 rotate relative to each other in place, they will not shake relative to each other; in addition, the adjustment of the included angle between the inner square pipe 4 and the outer square pipe 2 has certain limitations. Generally, the final shape of the template device adjusted is a quadrilateral, including a trapezoid and a parallelogram.

[0040] As Figure 1 and 6 shown, in some embodiments, a first connecting plate 3 is provided on the inner wall of each connecting pipe 1. The four first connecting plates 3 enclose a rectangle, and the two first connecting plates 3 located diagonally are connected by a telescopic device. The telescopic device includes a first connecting cylinder 8, a second connecting cylinder 19, and a threaded sleeve 9. The diameter of the second connecting cylinder 19 is smaller than that of the first connecting cylinder 8. The first end of the second connecting cylinder 19 is inserted into the first end of the first connecting cylinder 8. An external thread is provided on the first end of the first connecting cylinder 8, and a plurality of telescopic slits are axially formed on the first end of the first connecting cylinder 8. An internal thread is provided on the inner wall of the threaded sleeve 9. The first end of the first connecting cylinder 8 is in threaded cooperation with the threaded sleeve 9. Limit rods 20 are provided on the first ends of the first connecting cylinder 8 and the second connecting cylinder 19. The limit rods 20 are perpendicular to the first connecting cylinder 8 and the second connecting cylinder 19 respectively. Correspondingly, connection holes 6 are provided on the first connecting plate 3, and the limit rods 20 are inserted into the connection holes 6.

[0041] When the telescopic device works, the shape of the template device has been fixed appropriately. When the telescopic device works, first, the limit rod 20 on the first connecting cylinder 8 is clamped into the connection hole 6 on one first connecting plate 3, then the threaded sleeve 9 is loosened, and then the connection between the first connecting cylinder 8 and the second connecting cylinder 19 is stretched relatively. When stretched to an appropriate position, the limit rod 20 on the second connecting cylinder 19 is clamped into the connection hole 6 on another first connecting plate 3, and then the threaded sleeve 9 is tightened. The telescopic device is more suitable for matching with Embodiment 1.

[0042] In some embodiments, the telescopic device can also be selected as a snap-type telescopic rod.

[0043] As Figure 1-3 shown, in some embodiments, the template device further includes four pins 7. A pin hole 13 is vertically provided on the clamping block 12. After the clamping block 12 is inserted into the limiting hole 11, the pin hole 13 is placed outside the outer square tube 2, and the pin 7 is inserted into the pin hole 13. The template device further includes an elastic connecting rope. The first end of the elastic connecting rope is connected to the outer wall of the outer square tube 2 of each connecting tube 1, and the second end of the elastic connecting rope is connected to one end of the pin 7.

[0044] During work, just insert the pin 7 into the pin hole 13, so that the matching relationship between the inner square tube 4 and the outer square tube 2 between the two connecting tubes 1 can be locked, making the connection more stable and reliable.

[0045] As Figure 2 shown, in some embodiments, each connecting tube 1 is further connected with a second connecting plate 10. A connecting hole 6 is vertically provided on the second connecting plate 10. Correspondingly, a screw hole is provided on the template. The second connecting plate 10 is connected to the template by passing a bolt through the connecting hole 6 and screwing it into the screw hole. The applicable scenario of this embodiment is preferably a metal template, and it is suitable to be paired with the second embodiment and fix the position of the template device on the template. After the shape of the template is fixed, place it on the preset template, set a screw hole at the position corresponding to the connecting hole 6 on the template, and pass a bolt through the connecting hole 6 and screw it into the screw hole to lock the position of the plate device.

[0046] This application can be used in working scenarios such as concrete reserved holes, door and window reserved holes, and laminated slab reserved holes, which can effectively reduce materials, reduce the labor intensity of workers, reduce costs, reduce dimensional deviation problems, and improve the forming quality of on-site concrete holes.

[0047] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable reserved hole formwork device, characterized in that, Comprising: Four connecting pipes; The connecting pipes are formed in an L shape. The first end of the connecting pipe is an outer square pipe, and the second end is an inner square pipe. The inner diameter of the inner square pipe is smaller than that of the outer square pipe. The four connecting pipes enclose a rectangle, and adjacent two connecting pipes are connected through the outer square pipe and the inner square pipe; Four elastic buckles; The four elastic buckles are respectively installed inside the inner square pipes of the four connecting pipes. The elastic buckle includes a spring and a clamping block. The first end of the spring is fixedly installed on the inner wall of the first side of the inner square pipe. There is a telescopic opening on the second side of the inner square pipe. The first side and the second side of the inner square pipe are opposite sides. The clamping block is telescopically placed in the telescopic opening, and the bottom of the clamping block is connected to the second end of the spring; A plurality of limiting holes are evenly arranged along a straight line on one side wall of the outer square pipe. When the inner square pipe is inserted into the outer square pipe, the clamping block is snapped into one of the limiting holes.

2. The adjustable reserved hole formwork device according to claim 1, wherein The connecting pipe further includes a rotating shaft, a shaft sleeve, and a connecting rod. The rotating shaft is rotatably installed in the shaft sleeve. The shaft sleeve is arranged vertically. A part of the side wall of the shaft sleeve is connected to one end of the outer square pipe. A rotating groove is circumferentially provided on the shaft sleeve. The first end of the connecting rod passes through the rotating groove and is connected to the side wall of the rotating shaft. The second end of the connecting rod is connected to one end of the inner square pipe.

3. The adjustable reserved hole formwork device according to claim 1, characterized in that A first connecting plate is provided on the inner wall of each connecting pipe. The four first connecting plates enclose a rectangle, and the two first connecting plates located at the diagonals are connected through a telescopic device.

4. The adjustable reserved hole formwork device according to claim 3, wherein, The telescopic device includes a first connecting cylinder, a second connecting cylinder, and a threaded sleeve. The diameter of the second connecting cylinder is smaller than that of the first connecting cylinder. The first end of the second connecting cylinder is inserted into the first end of the first connecting cylinder. An external thread is provided on the first end of the first connecting cylinder, and a plurality of telescopic slits are axially provided on the first end of the first connecting cylinder. An internal thread is provided on the inner wall of the threaded sleeve. The first end of the first connecting cylinder is in threaded cooperation with the threaded sleeve. Limiting rods are provided on the first ends of the first connecting cylinder and the second connecting cylinder respectively. The limiting rods are perpendicular to the first connecting cylinder and the second connecting cylinder respectively. Corresponding connecting holes are provided on the first connecting plate, and the limiting rods are inserted into the connecting holes.

5. The adjustable reserved hole formwork device according to claim 1, characterized in that, The template device further includes four pins. A pin hole is vertically provided on the clamping block. After the clamping block is snapped into the limiting hole, the pin hole is located outside the outer square pipe, and the pin is inserted into the pin hole.

6. The adjustable reserved hole formwork device according to claim 5, characterized in that The template device further includes an elastic connecting rope. The first end of the elastic connecting rope is connected to the outer wall of the outer square pipe of each connecting pipe, and the second end of the elastic connecting rope is connected to one end of the pin.

7. The adjustable reserved hole formwork device according to claim 1, characterized in that, A second connecting plate is further connected to each connecting pipe. A connecting hole is vertically provided on the second connecting plate. Corresponding screw holes are provided on the template. The second connecting plate is connected to the template by a bolt passing through the connecting hole and screwing into the screw hole.

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