Cast-in-place lintel formwork-free formwork
By designing a formwork-free template for cast-in-place lintels and employing a template mechanism, extension mechanism, and support device, the problem of time-consuming and labor-intensive reinforcement of cast-in-place lintels at door and window openings in existing technologies has been solved, enabling rapid erection and dismantling and improving construction efficiency and applicability.
Patent Information
- Application Number
- CN202422898733.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing methods for reinforcing cast-in-place lintels at door and window openings are time-consuming and labor-intensive, with poor material applicability and cumbersome formwork erection and dismantling processes.
A formwork system for cast-in-place lintels without formwork support was designed, including a formwork mechanism, an extension mechanism, and a support device. Through bolt connections, telescopic rod adjustment, and locking components, it can be quickly erected and disassembled, adapting to different wall pre-reserved positions and heights.
It improved construction efficiency, enhanced the applicability and reliability of the formwork, simplified the formwork erection and dismantling process, and reduced labor intensity.
Smart Images

Figure CN223459128U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a drainage pipeline fixing device field, specifically to a cast-in-place overbeam formwork without formwork support. BACKGROUND
[0002] At present, the reinforcing method of cast-in-place overbeam of door and window hole usually adopts the mode of formwork support, usually utilizes iron nail and square wood to fix, then reinforces and supports with steel pipe, pours again, the process of this formwork support and form removal is more troublesome, time-consuming and labor-consuming, reduces work efficiency, and the length of the position reserved on both sides of each door and window hole and used to support the two ends of overbeam is different, resulting in that the length of the material used for formwork support is also different, the applicability is poor, therefore, the utility model provides a cast-in-place overbeam formwork without formwork support. UTILITY MODEL CONTENTS
[0003] In view of the problems in the prior art, the utility model provides a cast-in-place overbeam formwork without formwork support.
[0004] The utility model solves technical scheme that its technical problem adopts: a cast-in-place overbeam formwork without formwork support, characterized by: including formwork mechanism, the both ends of formwork mechanism are symmetrically installed with extension mechanism, the lower of formwork mechanism is placed with support plate, the lower of support plate is installed with support device;
[0005] Specifically, the formwork mechanism includes a first L-shaped side plate and a second L-shaped side plate, a first threaded groove is formed in the interior of the first L-shaped side plate and the second L-shaped side plate, a first bolt is rotatably arranged in the first threaded groove, the first L-shaped side plate and the second L-shaped side plate are connected by the bolt, and a pouring groove is formed between the first L-shaped side plate and the second L-shaped side plate.
[0006] Specifically, the extension mechanism includes four L-shaped rods, the shorter ends of the four L-shaped rods are fixed to the upper end faces of the first L-shaped side plate and the second L-shaped side plate, and a sliding groove is formed in the interior of the longer end of each L-shaped rod.
[0007] Specifically, the extension mechanism further includes an extension plate, a second threaded groove is formed in the interior of the extension plate, a second bolt is rotatably connected to the second threaded groove, one end of the second bolt penetrates the sliding groove, and a knob is fixed to the end of the second bolt penetrating the sliding groove.
[0008] Specifically, the support device includes a bottom plate, an extension rod is fixed to the upper end face of the bottom plate, a sleeve groove is fixed to the telescopic end of the extension rod, a support rod is inserted into the sleeve groove, and one end of the support rod is detachably connected to the lower end face of the support plate.
[0009] Specific, one side of the first L-shaped side plate and the second L-shaped side plate are respectively fixed with a limiting frame;
[0010] Specific, both sides of the support plate are symmetrically fixed with a rectangular block;
[0011] Specific, both sides of the support plate are symmetrically mounted with a clamping assembly;
[0012] Specific, the clamping assembly comprises a spring sleeve rod, one end of the spring sleeve rod is fixed with the lower end face of the rectangular block, and the outer wall of the spring sleeve rod is sleeved with a spring;
[0013] Specific, the clamping assembly further comprises a C-shaped block, one side of the C-shaped block is provided with a circular hole, one end of the spring sleeve rod passes through the circular hole on one side of the C-shaped block, and a limiting circular block is fixed at the end, and the other side of the C-shaped block is clamped with the limiting frame;
[0014] Specific, one end of the limiting frame is designed as a protrusion to avoid sliding offset of the C-shaped block.
[0015] The beneficial effects of the present application are:
[0016] (1) The cast-in-place overpass formwork of the utility model, through setting up first L-shaped side plate and second L-shaped side plate, first L-shaped side plate and second L-shaped side plate are connected through bolt, first L-shaped side plate and the second L-shaped side plate between for pouring groove, the upper end face of both ends of first L-shaped side plate and second L-shaped side plate is fixed with L-shaped rod respectively, the inside of the longer end of L-shaped rod is provided with sliding slot, still be provided with extension plate, the inside of extension plate is provided with second screw groove, second bolt is worn in sliding slot, one end of second bolt is fixed with knob, the other end of second bolt is connected with second screw groove, the lower end of support plate is placed in first L-shaped side plate and second L-shaped side plate, the lower end of support plate is detachably connected with support rod, the lower end of support rod is connected with telescopic rod, the height of pouring groove is adjusted through telescopic rod, realizes exempting from formwork, can quickly set up formwork and pours, greatly improves work efficiency, in addition, through the position of adjustable extension plate, can make up the length of first L-shaped side plate and second L-shaped side plate and the length of wall body reservation position deficiency, thereby improve the applicability of formwork.
[0017] (2) The cast-in-place overpass formwork of the utility model, through setting up sleeve groove in telescopic rod telescopic end, support rod is sleeved in sleeve groove, according to the height of overpass to be poured, can change the length of support rod, and the applicability of formwork is further improved, in addition, through the telescopic function of telescopic rod, the applicability of formwork can be improved again.
[0018] (3) The utility model discloses a cast-in-place overpass formwork exempts from formwork support, be provided with the engagement subassembly through setting, through the both sides symmetry fixed limit support of first L shape side plate and second L shape side plate, is equipped with the convex portion at one end of limit support, the symmetry fixed rectangular block of both sides of support plate, the spring sleeve rod is fixed to the lower end surface of rectangular block, the spring is sleeved on the outer wall of spring sleeve rod, and one end of spring sleeve rod is connected with C block, can pass through the manual pulling C block and limit support engagement, when the pouring work is finished, contracts the telescopic link downwards, realizes limit support and drives first L shape side plate and second L shape side plate downward movement to promote first L shape side plate and second L shape side plate and separate the overpass of pouring good, in addition, through the design of limit support one end convex portion, can limit C block in transverse direction, guarantees that support plate does not occur when supporting and shifts, improves the reliability that can formwork uses. BRIEF DESCRIPTION OF DRAWINGS
[0019] The utility model is further explained below in combination with the drawings and examples.
[0020] Figure 1 The utility model provides the three -dimensional view of integral structure and wall cooperation;
[0021] Figure 2 The utility model provides the three -dimensional view of integral structure;
[0022] Figure 3 The utility model provides the front view of integral structure;
[0023] Figure 4 The utility model provides the sectional view of integral structure's visual angle one;
[0024] Figure 5 The utility model provides the sectional view of integral structure's visual angle two;
[0025] Figure 6 The utility model provides the structure sectional view of formwork mechanism, engagement subassembly and support plate;
[0026] Figure 7 The utility model provides the structure diagram of support plate and engagement subassembly;
[0027] Figure 8 The utility model provides the three -dimensional view of limit support;
[0028] Figure 9 For Figure 4 The enlarged view of a area;
[0029] Figure 10 For Figure 5 The enlarged view of b area;
[0030] Figure 11 For Figure 6Enlarged view of the middle c region.
[0031] In the figure: template mechanism 2, first L-shaped side plate 21, second L-shaped side plate 22, first threaded groove 211, first bolt 212, pouring groove 23, limiting frame 24, extension mechanism 3, L-shaped rod 31, sliding groove 311, extension plate 32, Second threaded groove 321, second bolt 33, knob 34, support device 4, telescopic rod 41, sleeve groove 42, support rod 43, bottom plate 44, clamping assembly 5, C-shaped block 51, spring sleeve rod 52, limiting round block 53, spring 54, support plate 6, rectangular block 61. DETAILED DESCRIPTION
[0032] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0033] As Figures 1-11 shown, a cast-in-place beam formwork free formwork of the utility model, characterized in that: including template mechanism 2, the both ends of template mechanism 2 are symmetrically installed with extension mechanism 3, the lower of template mechanism 2 is placed with support plate 6, the lower of support plate 6 is installed with support device 4, template mechanism 2 is supported up through support device 4, and template mechanism 2 is made to be the same horizontal height with the position of both sides wall body reservation;
[0034] Template mechanism 2 includes first L-shaped side plate 21 and second L-shaped side plate 22, first threaded groove 211 is formed in the inside of first L-shaped side plate 21 and second L-shaped side plate 22, first bolt 212 is rotated in the inside of first threaded groove 211, first L-shaped side plate 21 and second L-shaped side plate 22 are connected through bolt, the space formed between first L-shaped side plate 21 and second L-shaped side plate 22 is pouring groove 23, and pouring work can be carried out in pouring groove 23;
[0035] The extension mechanism 3 includes four L-shaped rods 31, the shorter ends of which are fixed to the upper end faces of the two ends of the first and second L-shaped side plates 21 and 22 respectively, and the longer ends of the four L-shaped rods 31 are each provided with a sliding groove 311 inside, and the extension mechanism 3 further includes an extension plate 32, the inside of which is provided with a second threaded groove 321, and the second threaded groove 321 is rotatably connected with a second bolt 33, one end of which passes through the sliding groove 311, and the end of the second bolt 33 passing through the sliding groove 311 is fixed with a knob 34, and the tightness between the extension plate 32 and the knob 34 can be adjusted by rotating the knob 34, so as to adjust the position of the extension plate 32, when the length of the position reserved on both sides of the wall is relatively long, the length of the first and second L-shaped side plates 21 and 22 is not enough, at this time, the knob 34 can be twisted upwards, so that the extension plate 32 can move along the sliding groove 311, and the extension plate 32 is adjusted to one end of the first and second L-shaped side plates 21 and 22 respectively, until the side wall of the extension plate 32 is attached to the side wall of the first and second L-shaped side plates 21 and 22, and then the knob 34 is tightened downwards until the extension plate 32 cannot move any more, thereby avoiding the need to replace the equipment materials due to insufficient size, improving the applicability of the formwork, and in addition, the limiting between the extension plate 32 and the wall can avoid the transverse displacement of the first and second L-shaped side plates 21 and 22, thereby affecting the pouring effect and improving the reliability of use;
[0036] The support device 4 includes a bottom plate 44, which can improve stability by increasing the contact area with the bottom surface and avoid deviation during support, and the upper end face of the bottom plate 44 is fixed with a telescopic rod 41, the telescopic end of which is fixed with a sleeve groove 42, and the inside of the sleeve groove 42 is inserted with a support rod 43, which can be replaced according to the needs of different heights for different height beam pouring work, and the support rod 43 of the same thickness can be detachably connected with the lower end face of the support plate 6, and the height of the telescopic rod 41 can be adjusted to realize that the formwork can adapt to various height beam pouring work, improving the applicability of the formwork;
[0037] Two sides of the support plate 6 are symmetrically fixed with rectangular blocks 61, two sides of the support plate 6 are symmetrically installed with clamping assemblies 5, the clamping assembly 5 comprises a spring sleeve rod 52, one end of the spring sleeve rod 52 is fixed with the lower end face of the rectangular block 61, the outer wall of the spring sleeve rod 52 is sleeved with a spring 54, the clamping assembly 5 further comprises a C-shaped block 51, one side of the C-shaped block 51 is provided with a circular hole, one end of the spring sleeve rod 52 passes through the circular hole provided on one side of the C-shaped block 51, and a limiting circular block 53 is fixed at the terminal end, the other side of the C-shaped block 51 is clamped with the limiting frame 24, when the formwork is erected, the C-shaped block 51 can be manually pulled upward, the lower end of the C-shaped block 51 moves upward along the outer wall of the spring sleeve rod 52 and extrudes the spring 54, the spring 54 obtains restoring force, until the upper end of the C-shaped block 51 can move from the side of the limiting frame 24 with a protruding design to the other side of the limiting frame 24, at this time, the state of pulling the C-shaped block 51 upward is maintained, and a force of moving the C-shaped block 51 from the side of the limiting frame 24 with a protruding design to the other side of the limiting frame 24 is given to the C-shaped block 51, until the whole C-shaped block 51 moves away from the side of the limiting frame 24 with a protruding design, the pulling of the C-shaped block 51 upward and to one side is stopped, under the restoring force of the spring 54, the C-shaped block 51 moves downward and is clamped with the limiting frame 24, the purpose of the design of clamping is to, when the overpass pouring is completed, the telescopic rod 41 can be retracted downward, the telescopic end of the telescopic rod 41 pulls the support rod 43 downward, the support rod 43 pulls the support plate 6 downward, the support plate 6 pulls the rectangular block 61 downward, the rectangular block 61 has downward pressure on the lower end of the C-shaped block 51, so that the C-shaped block 51 moves downward, the C-shaped block 51 pulls the limiting frame 24 to move downward, the limiting frame 24 drives the first L-shaped side plate 21 and the second L-shaped side plate 22 to move downward, thereby promoting the first L-shaped side plate 21 and the second L-shaped side plate 22 to separate from the poured overpass.
[0038] One side of the first L-shaped side plate 21 and the second L-shaped side plate 22 is respectively symmetrically fixed with a limiting frame 24, one end of the limiting frame 24 is designed as protruding, limiting the C-shaped block 51 in the transverse direction, avoiding the sliding deviation of the support plate 6 during supporting, and further improving the reliability of the formwork.
[0039] The basic principle, main features and advantages of the utility model are shown and described above. The skilled person in the art should understand that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A cast-in-place bent cap formwork, characterized in that: Including template mechanism (2), both ends of the template mechanism (2) are symmetrically provided with extension mechanism (3), the lower side of the template mechanism (2) is provided with support plate (6), and the lower side of the support plate (6) is provided with support device (4); The template mechanism (2) comprises a first L-shaped side plate (21) and a second L-shaped side plate (22), a first threaded groove (211) is formed in the interiors of the first L-shaped side plate (21) and the second L-shaped side plate (22), and a first bolt (212) is rotatably arranged in the first threaded groove (211); the first L-shaped side plate (21) and the second L-shaped side plate (22) are connected through bolts; and a pouring groove (23) is formed between the first L-shaped side plate (21) and the second L-shaped side plate (22). The extension mechanism (3) comprises L-shaped rods (31), the shorter ends of the four L-shaped rods (31) are fixed to the upper end faces of the two ends of the first L-shaped side plate (21) and the second L-shaped side plate (22) respectively, and a sliding groove (311) is formed in the longer end of each of the four L-shaped rods (31). The extension mechanism (3) further comprises an extension plate (32), a second threaded groove (321) is formed in the interior of the extension plate (32), and a second bolt (33) is rotatably connected in the second threaded groove (321); one end of the second bolt (33) penetrates through the sliding groove (311), and a knob (34) is fixed to the end of the second bolt (33) penetrating through the sliding groove (311).
2. The cast-in-place overbeam formwork according to claim 1, characterized in that: The support device (4) comprises a bottom plate (44), a telescopic rod (41) is fixed to the upper end face of the bottom plate (44), a sleeve groove (42) is fixed to the telescopic end of the telescopic rod (41), a supporting rod (43) is inserted into the sleeve groove (42), and one end of the supporting rod (43) is detachably connected to the lower end face of the support plate (6).
3. The cast-in-place overbeam formwork according to claim 1, characterized in that: Limiting racks (24) are symmetrically fixed to one side of the first L-shaped side plate (21) and the second L-shaped side plate (22) respectively.
4. The cast-in-place overbeam formwork according to claim 2, characterized in that: Rectangular blocks (61) are symmetrically fixed to the two sides of the support plate (6).
5. The cast-in-place overbeam formwork according to claim 4, characterized in that: Clamping assemblies (5) are symmetrically mounted on the two sides of the support plate (6).
6. The cast-in-place overbeam formwork according to claim 5, characterized in that: The clamping assembly (5) comprises a spring sleeve rod (52), one end of the spring sleeve rod (52) is fixed to the lower end face of the rectangular block (61), and a spring (54) is sleeved on the outer wall of the spring sleeve rod (52).
7. The cast-in-place overbeam formwork according to claim 6, characterized in that: The clamping assembly (5) further comprises a C-shaped block (51), a circular hole is formed in one side of the C-shaped block (51), one end of the spring sleeve rod (52) penetrates through the circular hole formed in one side of the C-shaped block (51), a limiting circular block (53) is fixed to the terminal end, and the other side of the C-shaped block (51) is clamped with the limiting rack (24).
8. The cast-in-place overbeam formwork according to claim 7, characterized in that: One end of the limiting rack (24) is designed as a convex structure to avoid sliding deviation of the C-shaped block (51).