Formwork supporting frame

Abstract

The utility model belongs to the field of highway bridge construction, and discloses a formwork supporting frame which comprises three driving devices used for pushing telescopic adjustment through thread rotation, and telescopic devices used for adjusting the supporting height in a sliding telescopic mode are arranged on the driving devices. The fixing devices are arranged below the three driving devices and used for sliding and expanding towards the two sides to increase the bottom supporting face, and the supporting devices used for supporting the formwork at three points are arranged on the three telescopic devices. The fixing device comprises a fixing plate, and two first extension assemblies are symmetrically and slidably mounted on the two sides of the bottom of the fixing plate. According to the formwork supporting frame, the formwork is supported from the middle and the two sides through the arrangement of the three-point supporting formwork, and the supporting effect is enhanced; through the arrangement of sliding expansion towards the two sides, the supporting surface of the bottom is enlarged, and the supporting effect is further improved; and through the arrangement of top hinging, the obliquely-arranged formwork is supported, and the application range is widened.

Description

Technical Field

[0001] The utility model belongs to the field of highway bridge construction, and particularly relates to a formwork support frame. Background Technique

[0002] Highway bridge construction is a complex and systematic project, involving multiple aspects, including construction preparation, foundation construction, superstructure construction, and auxiliary project construction, etc.; the formwork support frame is a commonly used auxiliary tool in building construction, especially playing an important role in projects such as bridges and buildings; as the name implies, the formwork support frame is a frame structure used to support the formwork, which can keep the formwork in the correct position and shape, ensure that the formwork does not deform or displace during the concrete pouring process, so as to guarantee the dimensional and shape accuracy of the concrete structure. The formwork support frame is mostly made of materials such as wooden bars and iron pipes, and has adjustability to adapt to the construction requirements of different heights and shapes.

[0003] Comparing with the Chinese patent with the authorization announcement number of CN219298772U, it discloses a formwork support frame, including a base and a folding roller device. A lifting rod is fixedly installed at the top of the base, and a support structure is arranged at the top of the lifting rod. The support structure includes: a support shell, the support shell is fixedly installed at the top of the lifting rod, the top of the support shell is arranged in an open structure, two grooves are opened at the left and right ends of the top of the support shell, two sliding grooves are opened on the inner wall surfaces of the front and back sides of the support shell, a fixed sleeve is fixedly installed at the center of the inner bottom surface of the support shell, and two moving plates are respectively arranged on the left and right sides of the top surface of the support shell.

[0004] There is only one support rod in the above patent, which can only support the top support plate from the middle position, and the support effect on the formwork is not good. Therefore, a new device needs to be designed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a formwork support frame to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A formwork support frame includes three driving devices for pushing telescopic adjustment by threaded rotation. An expansion device for sliding telescopic adjustment to support height is arranged on the driving device. It also includes a fixing device arranged below the three driving devices for sliding and expanding to both sides to increase the bottom support surface. A support device for three-point support of the formwork is arranged on the three expansion devices.

[0008] The fixing device includes a fixing plate. On both sides of the bottom of the fixing plate, two first expansion components are symmetrically and slidably installed. A first support block is arranged between the two first expansion components. On both sides of the upper surface of the fixing plate, two first locking bolts are symmetrically arranged.

[0009] The supporting device includes a supporting plate. On both sides of the top of the supporting plate, two second expansion components are symmetrically and slidably installed. A first hinge seat is arranged between the two second expansion components. On both sides of the lower surface of the supporting plate, two second locking bolts are symmetrically arranged.

[0010] Further: The driving device includes a driving box. A lead screw is installed on the top of the driving box. A transmission bevel gear is installed at the bottom of the lead screw. A driving bevel gear is meshed in front of the transmission bevel gear. A rotating shaft is arranged at the center position of the driving bevel gear. A knob is arranged at the front end of the rotating shaft.

[0011] Further: The telescopic device includes a sleeve rod. A limit sleeve is arranged at the top of the sleeve rod. An elongation structure is slidably installed inside the sleeve rod.

[0012] Further: The first expansion component includes a first sliding plate. A second support block is arranged on one side of the upper surface of the first sliding plate.

[0013] Further: The second expansion component includes a second sliding plate. A second hinge seat is arranged on one side of the lower surface of the second sliding plate.

[0014] Further: The elongation structure includes an elongation rod. A slider is arranged at the bottom of the elongation rod.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] 1. Through the setting of three-point support for the template, the template is supported from the middle and both sides, enhancing the support effect;

[0017] 2. Through the setting of sliding and expanding to both sides, the supporting surface at the bottom is increased, further improving the support effect;

[0018] 3. Through the setting of hinging at the top, the supporting plate can be tilted to support the inclined template, expanding the scope of application. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a template support frame according to the present utility model;

[0020] Figure 2 is a schematic diagram of the fixing device of a template support frame according to the present utility model;

[0021] Figure 3 is a right cross-sectional view of the driving device of a template support frame according to the present utility model;

[0022] Figure 4 It is a right sectional view of the telescopic device of a formwork support frame described in the present utility model;

[0023] Figure 5 It is a schematic diagram of the support device of a formwork support frame described in the present utility model.

[0024] In the reference numerals: 101, fixed plate; 102, first sliding plate; 103, first support block; 104, second support block; 105, first locking bolt; 201, drive box; 202, lead screw; 203, transmission bevel gear; 204, driving bevel gear; 205, rotating shaft; 206, knob; 301, sleeve rod; 302, limit sleeve; 303, slider; 304, extension rod; 401, support plate; 402, second sliding plate; 403, first hinge seat; 404, second hinge seat; 405, second locking bolt. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 , a formwork support frame, including three driving devices for pushing telescopic adjustment by threaded rotation. A telescopic device for sliding telescopic adjustment to support height is arranged on the driving devices, and a fixing device for sliding and expanding to both sides to increase the bottom support surface is arranged below the three driving devices. A support device for three-point supporting the formwork is arranged on the three telescopic devices.

[0027] In this embodiment: The fixing device includes a fixed plate 101. Two first expansion components are symmetrically and slidably installed on both sides of the bottom of the fixed plate 101. A first support block 103 is arranged between the two first expansion components. Two first locking bolts 105 are symmetrically arranged on both sides of the upper surface of the fixed plate 101. The first expansion component includes a first sliding plate 102. A second support block 104 is arranged on one side of the upper surface of the first sliding plate 102. After the two first sliding plates 102 slide and expand along the fixed plate 101 to both sides, the first locking bolts 105 are tightened, and the first support block 103 and the second support block 104 are used to provide support for the driving device;

[0028] In this embodiment: The driving device includes a driving box 201. A lead screw 202 is installed on the top of the driving box 201. A transmission bevel gear 203 is installed at the bottom of the lead screw 202. A driving bevel gear 204 meshes with the transmission bevel gear 203 in front. A rotating shaft 205 is arranged at the central position of the driving bevel gear 204. A knob 206 is arranged at the front end of the rotating shaft 205. Rotate the knob 206, which drives the driving bevel gear 204 to rotate through the rotating shaft 205, thereby meshing with the transmission bevel gear 203 to drive the lead screw 202 to rotate under the support of the driving box 201;

[0029] In this embodiment: The telescopic device includes a sleeve rod 301. A limit sleeve 302 is arranged at the top of the sleeve rod 301. An elongation structure is slidably installed in the sleeve rod 301. The elongation structure includes an elongation rod 304. A slider 303 is arranged at the bottom of the elongation rod 304. When the lead screw 202 rotates, it pushes the slider 303 to drive the elongation rod 304 to move upward along the sleeve rod 301 under the restriction of the limit sleeve 302 for elongation;

[0030] In this embodiment: The supporting device includes a support plate 401. Two second expansion components are symmetrically and slidably installed on both sides of the top of the support plate 401. A first hinge seat 403 is arranged between the two second expansion components. Two second locking bolts 405 are symmetrically arranged on both sides below the support plate 401. The second expansion component includes a second slide plate 402. A second hinge seat 404 is arranged on one side below the second slide plate 402. After the two second slide plates 402 slide and expand to both sides along the support plate 401, tighten the second locking bolts 405. Then, adjust the lengths of the three supporting devices respectively, so that it pushes the support plate 401 through the first hinge seat 403 and the second hinge seat 404 pushes the second slide plate 402 to fit the template upward to support the template. The settings of the first hinge seat 403 and the second hinge seat 404 enable the angle between the elongation rod 304 and the support plate 401 to be changed. Thus, by changing the lengths of the three telescopic devices, the support plate 401 is inclined to support the inclined template.

[0031] Working principle: When in use, place this support frame under the template to be supported, slide the two first sliding plates 102 along the fixed plate 101 to both sides for expansion, and drive the drive boxes 201 on both sides to move synchronously through the second support blocks 104. The drive boxes 201 then drive the second hinge seats 404 through the sleeve rods 301 and the extension rods 304 to expand the second sliding plates 402 along the support plates 401 to both sides, unfolding this support frame to both sides. Subsequently, lock the first locking bolts 105 and the second locking bolts 405 respectively to fix the positions of the first sliding plates 102 and the second sliding plates 402. Then rotate the knob 206, which drives the driving bevel gear 204 to rotate through the rotating shaft 205, thereby engaging and driving the driven bevel gear 203 to drive the lead screw 202 to rotate under the support of the drive box 201. The lead screw 202 then pushes the slider 303 to drive the extension rod 304 to move upward along the sleeve rod 301 under the limitation of the limit sleeve 302 for elongation. By the above process, the lengths of the three telescopic devices are adjusted respectively, so that they push the support plate 401 through the first hinge seats 403, and the second hinge seats 404 push the second sliding plates 402 to fit the template upward, and support the template under the support of the first support blocks 103 and the second support blocks 104; the settings of the first hinge seats 403 and the second hinge seats 404 enable the angle between the extension rods 304 and the support plates 401 to be changed, so that by changing the lengths of the three telescopic devices, the support plate 401 is inclined to support the inclined template.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A formwork support frame, comprising three driving devices for pushing telescopic adjustment by screw rotation, wherein a telescopic device for sliding telescopic adjustment to support height is arranged on the driving device, and is characterized in that: It also includes a fixing device arranged below the three driving devices and used for sliding and expanding towards both sides to increase the bottom support surface, and a supporting device for three-point supporting the template is arranged above the three telescopic devices; The fixing device includes a fixing plate (101), two first expansion components are symmetrically and slidably installed on both sides of the bottom of the fixing plate (101), a first support block (103) is arranged between the two first expansion components, and two first locking bolts (105) are symmetrically arranged on both sides of the upper surface of the fixing plate (101); The supporting device includes a supporting plate (401), two second expansion components are symmetrically and slidably installed on both sides of the top of the supporting plate (401), a first hinge seat (403) is arranged between the two second expansion components, and two second locking bolts (405) are symmetrically arranged on both sides of the lower surface of the supporting plate (401).

2. The formwork support frame according to claim 1, characterized in that: The driving device includes a driving box (201), a lead screw (202) is installed on the top of the driving box (201), a transmission bevel gear (203) is installed at the bottom of the lead screw (202), a driving bevel gear (204) is meshed in front of the transmission bevel gear (203), a rotating shaft (205) is arranged at the central position of the driving bevel gear (204), and a knob (206) is arranged at the front end of the rotating shaft (205).

3. A formwork support frame according to claim 1, characterized in that: The telescopic device includes a sleeve rod (301), a limit sleeve (302) is arranged at the top of the sleeve rod (301), and an elongation structure is slidably installed in the sleeve rod (301).

4. A formwork support frame according to claim 1, characterized in that: The first expansion component includes a first sliding plate (102), and a second support block (104) is arranged on one side of the upper surface of the first sliding plate (102).

5. A formwork support frame according to claim 1, characterized in that: The second expansion component includes a second sliding plate (402), and a second hinge seat (404) is arranged on one side of the lower surface of the second sliding plate (402).

6. The formwork support frame according to claim 3, characterized in that: The elongation structure includes an elongation rod (304), and a slider (303) is arranged at the bottom of the elongation rod (304).

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