Novel fixing clamp for pouring formwork
The new type of fixing clamp uses bidirectional clamping technology, which solves the problems of high cost and cumbersome operation in existing construction, and achieves efficient and low-cost formwork fixing and construction quality assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
In current building construction, the pouring of structures such as ring beams and window caps uses costly materials such as wooden formwork and tie bolts, which are cumbersome to operate and make it difficult to guarantee construction quality and schedule.
A new type of fixing fixture, including telescopic brackets and adjustable spacing inner and outer clamping arms, is adopted to fix the template by bidirectional clamping, avoiding the use of tie bolts and reducing the consumption of pipe fittings and plugging materials.
It reduced construction costs, improved construction quality and efficiency, avoided cumbersome hole-blocking procedures, and achieved stable clamping and reusability of the template.
Smart Images
Figure CN224063915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a novel fixing clamp for casting formwork. Background Technology
[0002] Currently, in building construction, the pouring of structures such as ring beams and window caps usually requires the use of a combination of wooden formwork, tie bolts, and steel pipes to construct the pouring formwork. However, whether it is a through-thread tie bolt or a three-section tie bolt, a large amount of pipe fittings are required (the through-thread type uses PVC sleeves). Sealing the tie bolt holes also requires the consumption of expanding foam, cement mortar, etc., resulting in high construction costs. Furthermore, the hole sealing operation is cumbersome, and due to the limitations of the workers' technical skills, it is difficult to effectively guarantee the construction quality and schedule. Utility Model Content
[0003] The purpose of this utility model is to provide a new type of fixing clamp for casting templates, which solves the shortcomings in the above-mentioned background technology.
[0004] The technical solution of this utility model is: a novel fixing clamp for casting templates, comprising:
[0005] A telescopic bracket, wherein the two ends of the telescopic bracket are respectively connected to an outer clamping arm one and an outer clamping arm two, and the telescopic bracket can be extended and retracted to adjust the distance between the outer clamping arm one and the outer clamping arm two;
[0006] Additionally, the inner clamping arm 1 and the inner clamping arm 2 of the telescopic bracket are movably connected respectively, and the distance between the inner clamping arm 1 and the inner clamping arm 2 is adjustable.
[0007] Preferably, the telescopic bracket includes an adjusting screw, a sleeve, and a sliding rod. One end of the sleeve is sealed, and the sliding rod is slidably inserted through the open end of the sleeve. The adjusting screw passes through the sealed end of the sleeve and is screwed onto the sliding rod.
[0008] Preferably, the adjusting screw is fitted with two sets of limiting ring plates, which are located inside and outside the sleeve respectively, and abut against the sealing end of the sleeve; the slide rod is provided with an internal thread groove coaxial with the limiting ring plate, and the internal thread groove is connected to the adjusting screw.
[0009] Preferably, the first inner clamping arm and the second inner clamping arm have the same configuration. The first inner clamping arm includes a sleeve frame and a locking member. The sleeve frame is sleeved on the outside of the telescopic bracket. The locking member connects the sleeve frame with an abutment plate located inside the sleeve frame and is used to press the abutment plate against the outer wall of the telescopic bracket.
[0010] Preferably, the socket frame is provided with mounting screw holes, the locking member passes through the mounting screw holes and is threaded to them, and the abutment plate is fixedly connected to the locking member.
[0011] Preferably, the outer clamping arm one and the outer clamping arm two have the same configuration, and their length is greater than the length of the inner clamping arm one;
[0012] The facing surfaces of the outer clamping arm 1 and the inner clamping arm 1, and the facing surfaces of the outer clamping arm 2 and the inner clamping arm 2 are respectively provided with rubber pads.
[0013] Preferably, the opposing surfaces of the first outer clamping arm and the second outer clamping arm are respectively provided with anti-detachment components, the anti-detachment components protruding from the surface of the first outer clamping arm or the second outer clamping arm, and their length being greater than the distance between the first outer clamping arm and the first inner clamping arm.
[0014] Preferably, rubber pads are respectively provided on the facing surfaces of the first outer clamping arm and the second outer clamping arm, the anti-detachment component is located between the first inner clamping arm and the rubber pads, and the thickness of the rubber pads is greater than the thickness of the rubber pad layer.
[0015] The beneficial effects of this utility model are: this clamp can clamp the casting template in both directions, avoiding problems such as displacement or grout leakage; it can avoid the use of tie bolts to fix the template, and this clamp can be reused, which can greatly reduce the consumption of pipe fittings and hole plugging materials, reduce construction costs, and at the same time avoid the cumbersome hole plugging process, ensuring construction quality and improving construction efficiency. Attached Figure Description
[0016] Figure 1 This is the usage state of this utility model embodiment;
[0017] Figure 2 This is a structural diagram of an embodiment of the present utility model;
[0018] Figure 3 This is a structural diagram of the telescopic bracket in an embodiment of this utility model;
[0019] Figure 4 This is a structural diagram of the inner clamping arm of the plate in an embodiment of this utility model.
[0020] In the picture:
[0021] 1. Telescopic bracket; 11. Adjustable screw; 12. Sleeve; 13. Slide rod; 14. Limiting ring plate; 15. Internal thread groove;
[0022] 2. One outer clamping arm of the plate;
[0023] 3. Two outer clamping arms on the plate;
[0024] 4. Inner clamping arm 1; 41. Socket frame; 42. Locking element; 43. Abutment plate; 44. Mounting screw hole;
[0025] 5. Two clamping arms inside the plate;
[0026] 6. Side formwork;
[0027] 7. Anti-detachment components;
[0028] 8. Rubber padding layer;
[0029] 9. Rubber pads. Detailed Implementation
[0030] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.
[0032] Reference Appendix Figure 1-4 This embodiment provides a novel fixing clamp for casting templates, comprising: a telescopic bracket 1, an outer clamping arm 2, an outer clamping arm 3, an inner clamping arm 4, and an inner clamping arm 5. The two ends of the telescopic bracket 1 are respectively connected to the outer clamping arm 2 and the outer clamping arm 3. The telescopic bracket 1 is telescopic to adjust the distance between the outer clamping arm 2 and the outer clamping arm 3. The inner clamping arm 4 and the inner clamping arm 5 are movably connected to the telescopic bracket 1, and the distance between them is adjustable.
[0033] This clamp is used to fix two sets of templates that are set opposite each other in the pouring formwork. This embodiment takes the pouring side templates of ring beams, capping beams, etc. as examples to introduce the usage of this clamp: During construction, a telescopic bracket 1 is placed on the top of the set side template 6, so that the outer clamp arm 1 2 and the outer clamp arm 2 3 are respectively located on the opposite sides of the two sets of opposite side templates 6, that is, on the outside of the pouring space, and the inner clamp arm 1 4 and the inner clamp arm 2 5 are respectively located between the two sets of opposite side templates 6, that is, on the inside of the pouring space. Note that the bottom ends of the inner clamp arm 1 4 and the inner clamp arm 2 5 should be higher than the top elevation of the concrete structure; by adjusting the telescopic bracket 1, the distance between the outer clamp arm 1 2 and the outer clamp arm 2 3 is reduced so that they abut against the opposite surfaces of the two sets of side templates 6; then the positions of the inner clamp arm 1 4 and the inner clamp arm 2 5 on the telescopic bracket 1 are adjusted so that they abut against the facing surfaces of the two sets of side templates 6, thereby achieving the clamping and fastening of the side template 6.
[0034] The above solution can clamp the casting template in both directions, preventing displacement, bulging, and grout leakage. It can also avoid the use of tie bolts to fix the template, reducing the consumption of pipe fittings and plugging materials, lowering construction costs, and avoiding cumbersome plugging procedures, thus ensuring construction quality and improving construction efficiency.
[0035] In this embodiment, the telescopic bracket 1 includes an adjusting screw 11, a sleeve 12, and a sliding rod 13. One end of the sleeve 12 is sealed, and the sliding rod 13 slides through the open end of the sleeve 12. The adjusting screw 11 passes through the sealed end of the sleeve 12 and is screwed to the sliding rod 13. The first outer clamping arm 2 is perpendicular to the sleeve 12 and is fixedly connected to the sleeve 12. The second outer clamping arm 3 is perpendicular to the sliding rod 13 and is fixedly connected to the sliding rod 13. By rotating the adjusting screw 11, the position of the sliding rod 13 in the sleeve 12 can be changed, thereby adjusting the total length of the telescopic bracket 1 and realizing the adjustment of the distance between the first outer clamping arm 2 and the second outer clamping arm 3.
[0036] Reference Appendix Figure 3 Two sets of limiting ring plates 14 are fitted on the adjusting screw 11. The two sets of limiting ring plates 14 are located inside and outside the sleeve 12, respectively, and abut against the sealing end of the sleeve 12. The slide rod 13 has an internal thread groove 15 coaxial with the limiting ring plate 14, and the internal thread groove 15 connects to the adjusting screw 11. The limiting ring plate 14 can ensure that the connection point between the adjusting screw 11 and the sleeve 12 remains unchanged, and does not affect the smooth rotation of the adjusting screw 11. During construction, the outer clamping arm 2 is pressed against a set of side templates 6, and rotating the adjusting screw 11 will cause the outer clamping arm 3 to gradually approach the outer clamping arm 2, and then press against the other set of side templates 6.
[0037] In this embodiment, the inner clamping arm 4 and the inner clamping arm 5 have the same configuration, both including a sleeve frame 41, a locking member 42, and an abutment plate 43. When the inner clamping arm 4 is connected to the telescopic bracket 1: the sleeve frame 41 is sleeved on the outside of the sleeve 12, the abutment plate 43 is located between the inner wall of the sleeve frame 41 and the outer wall of the sleeve 12, and the locking member 42 connects the sleeve frame 41 and the abutment plate 43 to press the abutment plate 43 against the outer wall of the sleeve 12. When the inner clamping arm 5 is connected to the telescopic bracket 1: the sleeve frame 41 is sleeved on the outside of the slide rod 13, the abutment plate 43 is located between the inner wall of the sleeve frame 41 and the outer wall of the slide rod 13, and the locking member 42 connects the sleeve frame 41 and the abutment plate 43 to press the abutment plate 43 against the outer wall of the slide rod 13.
[0038] The aforementioned locking member 42 can be made of high-strength bolts, and mounting screw holes 44 are constructed on the sleeve frame 41. The locking member 42 passes through the mounting screw holes 44 and is threaded to them, thus fixing the abutment plate 43 to the locking member 42. When the locking member 42 is rotated, the distance between the abutment plate 43 and the inner wall of the sleeve frame 41 can be changed. When the distance between the abutment plate 43 and the inner wall of the sleeve frame 41 decreases, the abutment plate 43 will separate from the telescopic bracket 1, and the sleeve frame 41 can slide on the telescopic bracket 1. When the distance between the abutment plate 43 and the inner wall of the sleeve frame 41 increases, the distance between the abutment plate 43 and the outer wall of the sleeve 12 or the outer wall of the slide rod 13 decreases, and finally the abutment plate 43 will press against the outer wall of the sleeve 12 or the outer wall of the slide rod 13, thereby fixing the position of the sleeve frame 41 on the telescopic bracket 1.
[0039] In the above technical solution, the part of the outer edge of the sleeve frame 41 that extends beyond the telescopic bracket 1 will serve as the part that abuts against the side template 6, and will work with the outer clamp arm 1 2 or the outer clamp arm 2 3 to clamp and fix the side template 6. In this embodiment, the outer clamping arm 1 2 and the outer clamping arm 2 3 have the same configuration and can be plate or rod. To reduce the area of the inner clamping arm 1 4 and the inner clamping arm 2 5 in contact with the pouring grout, which would lead to surface defects in the concrete structure, the length of the inner clamping arm 1 4 and the inner clamping arm 2 5 should be less than the length of the outer clamping arm 1 2 (or the outer clamping arm 2 3). The contact area between the inner clamping arm 1 4 and the inner clamping arm 5 and the side formwork should be reduced, generally controlled at a height of 15mm. The bottom of the inner clamping arm 1 4 and the inner clamping arm 2 5 should preferably be an inverted trapezoid or triangle. A concrete release agent should be applied to the bottom surface of the inner clamping arm 1 4 and the inner clamping arm 2 5 that contacts the concrete grout, so that the clamp can be easily removed after the concrete structure reaches its strength, and the quality defects of the concrete structure can be reduced. Furthermore, rubber pads 8 are provided on the facing surfaces of the outer clamping arm 12 and the inner clamping arm 14, and on the facing surfaces of the outer clamping arm 23 and the inner clamping arm 25, respectively, to increase the friction with the side formwork 6, better prevent relative sliding of the side formwork relative to the outer clamping arm during concrete vibration or under external force, and improve connection stability.
[0040] In addition, anti-detachment components 7 are respectively provided on the facing surfaces of the outer clamping arm 1 (2) and the outer clamping arm 2 (3). The anti-detachment component 7 protrudes from the surface of the outer clamping arm 1 (2) or the outer clamping arm 2 (3), and its length is greater than the distance between the outer clamping arm 1 (2) and the inner clamping arm 1 (4) (or the distance between the outer clamping arm 2 (3) and the inner clamping arm 2 (5)). The anti-detachment component 7 can be of any shape, such as a conical, triangular, or rod-shaped structure. Its function is to penetrate the side formwork 6 and overlap the top of the masonry wall to prevent the clamp and the side formwork 6 from sagging. To facilitate demolding, a concrete release agent can be applied to the outer wall of the anti-detachment component 7 before pouring, or a rubber pad layer 8 can be constructed on the surface of the anti-detachment component 7.
[0041] The length of the anti-detachment component 7 does not need to be too large; it is sufficient to fix the clamp and the side formwork 6 to the top of the masonry wall. After demolding, the size of the groove left by the anti-detachment component 7 on the concrete structure is equal to the size of the end of the anti-detachment component 7 extending beyond the side formwork 6. This groove is not a through hole and is generally small in size, so it will not affect the strength of the concrete structure. It can be directly filled in during later decoration or plastering. Compared with sealing the tie bolt holes, the operation and material consumption of this embodiment are greatly reduced.
[0042] In addition, rubber pads 9 are respectively installed on the facing surfaces of the outer clamping arms 1 and 2 and the outer clamping arms 3. The anti-detachment component 7 is located between the inner clamping arm 1 and the rubber pads 9 (or the inner clamping arm 2 and the rubber pads 9). The thickness of the rubber pads 9 is greater than the thickness of the rubber pad layer 8. During construction, the rubber pads 9 are located below the side formwork 6 to prevent grout leakage at the joint between the bottom of the side formwork 6 and the masonry wall.
[0043] Compared with the prior art, the beneficial effects of this utility model include: this clamp can clamp the casting template in both directions, avoiding problems such as displacement, bulging, and grout leakage; it can avoid the cumbersome process of using timber as secondary keel and double steel pipes as main keel in traditional construction methods, and using tie bolts to fix the template. This clamp can be reused, which can greatly reduce the consumption of pipe fittings and hole plugging materials, reduce construction costs, and avoid the problems of bulging and grout leakage when using existing tools to "tighten step by step" to reinforce the template.
[0044] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A novel fixing clamp for a formwork, characterized in that, The utility model relates to a kind of adjustable plate clamping device, including: Telescopic support, two ends of the telescopic support are connected with plate outer clamping arm one and plate outer clamping arm two respectively, and the telescopic support is telescopic to adjust the interval of the plate outer clamping arm one and the plate outer clamping arm two; And, plate inner clamping arm one and plate inner clamping arm two are movably connected with the telescopic support respectively, and the interval of the plate inner clamping arm one and the plate inner clamping arm two can be adjusted.
2. The novel form of fixing clamp for formwork panels as claimed in claim 1 wherein, The telescopic support includes distance adjusting screw, sleeve pipe and sliding rod, one end of the sleeve pipe is sealed, and the sliding rod is slidably arranged in the opening end of the sleeve pipe;The distance adjusting screw is threaded through the sealed end of the sleeve pipe, and the sliding rod is screwed.
3. The novel form of fixing clamp for formwork panels as claimed in claim 2, wherein, Two sets of limiting ring plates are sleeved on the distance adjusting screw, and the two sets of limiting ring plates are respectively located on the inner side and the outer side of the sleeve pipe and abut against the sealed end of the sleeve pipe;The sliding rod is provided with an internal thread groove coaxial with the limiting ring plate, and the internal thread groove is connected with the distance adjusting screw.
4. The novel form of fixing clamp for formwork panels as claimed in any one of claims 1 to 3, wherein, The plate inner clamping arm one and the plate inner clamping arm two are the same in configuration, the plate inner clamping arm one includes sleeve frame and locking member, the sleeve frame is sleeved outside the telescopic support;The locking member connects the sleeve frame with the abutting plate located on the inner side of the sleeve frame, and is used for abutting the abutting plate against the outer wall of the telescopic support.
5. The novel form of fixing clamp for formwork panels as claimed in claim 4 wherein, The sleeve frame is provided with a mounting screw hole, the locking member is threaded through the mounting screw hole and is screwed with the mounting screw hole, and the abutting plate is fixedly connected with the locking member.
6. The new type of fixing clamp for the pouring formwork according to any of claims 1-3, 5, characterized in that, The plate outer clamping arm one and the plate outer clamping arm two are the same in configuration, and the length of the plate outer clamping arm one and the plate outer clamping arm two is greater than the length of the plate inner clamping arm one. The opposite surfaces of the plate outer clamping arm one and the plate inner clamping arm one, and the opposite surfaces of the plate outer clamping arm two and the plate inner clamping arm two are respectively provided with rubber pad layers.
7. The novel form of fixing clamp for formwork panels as claimed in claim 6 wherein, The opposite surfaces of the plate outer clamping arm one and the plate outer clamping arm two are respectively provided with anti-dropping members, the anti-dropping members are protruded from the surfaces of the plate outer clamping arm one or the plate outer clamping arm two, and the length of the anti-dropping members is greater than the interval of the plate outer clamping arm one and the plate inner clamping arm one.
8. The novel form of fixing clamp for formwork panels as claimed in claim 7 wherein, The opposite surfaces of the plate outer clamping arm one and the plate outer clamping arm two are respectively provided with rubber pads, the anti-dropping members are located between the plate inner clamping arm one and the rubber pads, and the thickness of the rubber pads is greater than the thickness of the rubber pad layers.