Novel fixing clamp for pouring formwork and construction method

Abstract

The invention provides a novel fixing clamp for a pouring formwork and a construction method, the fixing clamp comprises a telescopic support, the two ends of the telescopic support are connected with a first plate outer clamping arm and a second plate outer clamping arm respectively, and the telescopic support is telescopic to adjust the distance between the first plate outer clamping arm and the second plate outer clamping arm; the first in-board clamping arm and the second in-board clamping arm are movably connected with the telescopic support, and the distance between the first in-board clamping arm and the second in-board clamping arm is adjustable. The clamp provided by the invention can be used for bidirectionally clamping the pouring template, so that the problems of displacement, template expansion, slurry leakage and the like of the pouring template are avoided; according to the utility model, the template can be fixed without using a split bolt, and the clamp can be recycled, so that pipe fitting consumables and hole plugging material consumables can be greatly reduced, the construction cost can be reduced, and meanwhile, the complicated hole plugging procedure can be avoided, the construction quality can be ensured, and the construction efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a new type of fixing fixture for a casting formwork and a construction method thereof. Background Art

[0002] In current building construction, for the casting construction of structures such as ring beams and window lintels, it is usually necessary to use a combination of wooden formwork, tie bolts, steel pipes, etc. to construct a casting formwork. However, whether it is a through-thread type tie bolt or a three-section type tie bolt, a large amount of pipe fittings consumables (the pipe fittings consumables for the through-thread type are PVC sleeves) are required, and foaming glue, cement mortar, etc. are also required when plugging the tie bolt holes. The construction cost is relatively high, and the operation of plugging the holes is cumbersome. Limited by the technical level of workers, the construction quality and construction period are both difficult to be effectively guaranteed. Summary of the Invention

[0003] The purpose of the present invention is to provide a new type of fixing fixture for a casting formwork and a construction method thereof to solve the deficiencies in the above background art.

[0004] The technical solution of the present invention is: a new type of fixing fixture for a casting formwork, which includes:

[0005] A telescopic support, both ends of the telescopic support are respectively connected to an outer formwork clamp arm one and an outer formwork clamp arm two, and the telescopic support can be telescoped to adjust the distance between the outer formwork clamp arm one and the outer formwork clamp arm two;

[0006] And an inner formwork clamp arm one and an inner formwork clamp arm two which are respectively movably connected to the telescopic support, and the distance between the inner formwork clamp arm one and the inner formwork clamp arm two is adjustable.

[0007] Preferably, the telescopic support includes an adjustable distance screw, a sleeve and a sliding rod. One end of the sleeve is sealed, and the sliding rod slidably passes through the open end of the sleeve; the adjustable distance screw passes through the sealed end of the sleeve and is screwed to the sliding rod.

[0008] Preferably, two groups of limit ring plates are sleeved on the adjustable distance screw, and the two groups of limit ring plates are respectively located inside and outside the sleeve and abut against the sealed end of the sleeve; an internal thread groove coaxial with the limit ring plate is configured on the sliding rod, and the internal thread groove is connected to the adjustable distance screw.

[0009] Preferably, the inner formwork clamp arm one and the inner formwork clamp arm two have the same configuration. The inner formwork clamp arm one includes a sleeved frame and a locking member. The sleeved frame is sleeved outside the telescopic support; the locking member connects the sleeved frame and a contact plate located inside the sleeved frame for tightly pressing the contact plate against the outer wall of the telescopic support.

[0010] Preferably, mounting screw holes are configured on the socket frame, the locking member passes through the mounting screw holes and is threadedly connected thereto, and the abutting plate is fixedly connected to the locking member.

[0011] Preferably, the first outer plate clamping arm and the second outer plate clamping arm have the same configuration, and their length is greater than the length of the first inner plate clamping arm;

[0012] Rubber cushion layers are respectively provided on the facing surfaces of the first outer plate clamping arm and the first inner plate clamping arm, and the facing surfaces of the second outer plate clamping arm and the second inner plate clamping arm.

[0013] Preferably, anti - detachment members are respectively configured on the facing surfaces of the first outer plate clamping arm and the second outer plate clamping arm. The anti - detachment members protrude from the surface of the first outer plate clamping arm or the second outer plate clamping arm, and their length is greater than the distance between the first outer plate clamping arm and the first inner plate clamping arm.

[0014] Preferably, rubber cushion blocks are respectively configured on the facing surfaces of the first outer plate clamping arm and the second outer plate clamping arm. The anti - detachment members are located between the first inner plate clamping arm and the rubber cushion blocks, and the thickness of the rubber cushion blocks is greater than the thickness of the rubber cushion layers.

[0015] The technical solution of the present invention further includes: a method for constructing a new type of fixing fixture using the above - mentioned casting formwork, which includes the steps:

[0016] Install telescopic supports at the tops of two sets of oppositely arranged side formworks, so that the first outer plate clamping arm and the second outer plate clamping arm are respectively located on the separated sides of the two sets of side formworks, and the first inner plate clamping arm and the second inner plate clamping arm are respectively located between the two sets of side formworks;

[0017] Adjust the telescopic supports to narrow the distance between the first outer plate clamping arm and the second outer plate clamping arm, so that they respectively abut against the separated surfaces of the two sets of side formworks;

[0018] Adjust the positions of the first inner plate clamping arm and the second inner plate clamping arm on the telescopic supports, so that they respectively abut against the facing surfaces of the two sets of side formworks.

[0019] The beneficial effects of the present invention are: This fixture can clamp the casting formwork bidirectionally, avoiding problems such as displacement, formwork bulging and leakage of slurry; it can avoid using tie bolts to fix the formwork, and this fixture can be reused, which can greatly reduce the consumption of pipe fittings and plugging materials, reduce the construction cost, and at the same time avoid the cumbersome plugging process, ensure the construction quality and improve the construction efficiency. Description of the Drawings

[0020] Figure 1 is the use state of the embodiment of the present invention;

[0021] Figure 2 is the structural diagram of the embodiment of the present invention;

[0022] Figure 3 It is the structural diagram of the telescopic support in the embodiment of the present invention;

[0023] Figure 4 It is the structural diagram of the first inner clamping arm of the plate in the embodiment of the present invention.

[0024] In the figure:

[0025] 1. Telescopic support; 11. Spacing adjusting screw; 12. Sleeve; 13. Slide bar; 14. Limit ring plate; 15. Internal thread groove;

[0026] 2. First outer clamping arm of the plate;

[0027] 3. Second outer clamping arm of the plate;

[0028] 4. First inner clamping arm of the plate; 41. Socketing frame; 42. Locking part; 43. Abutting plate; 44. Mounting screw hole;

[0029] 5. Second inner clamping arm of the plate;

[0030] 6. Side template;

[0031] 7. Anti - detachment part;

[0032] 8. Rubber cushion layer;

[0033] 9. Rubber cushion block. Detailed implementation manners

[0034] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation to the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0036] Refer to the attached Figures 1-4, this embodiment provides a new type of fixing fixture for a casting formwork, which includes: a telescopic support 1, an outer formwork clamping arm 1 2, an outer formwork clamping arm 2 3, an inner formwork clamping arm 1 4, and an inner formwork clamping arm 2 5. The two ends of the telescopic support 1 are respectively connected to the outer formwork clamping arm 1 2 and the outer formwork clamping arm 2 3. The telescopic support 1 is telescopic to adjust the distance between the outer formwork clamping arm 1 2 and the outer formwork clamping arm 2 3; the inner formwork clamping arm 1 4 and the inner formwork clamping arm 2 5 are respectively movably connected to the telescopic support 1, and the distance between them is adjustable.

[0037] This fixture is used to fix two sets of formworks arranged oppositely in the casting formwork. In this embodiment, taking the casting side formworks of ring beams, coping, etc. as an example, the usage method of this fixture is introduced: during construction, place the telescopic support 1 at the top of the installed side formwork 6, so that the outer formwork clamping arm 1 2 and the outer formwork clamping arm 2 3 are respectively located on the separated sides of these two sets of oppositely arranged side formworks 6, that is, on the outer side of the casting space, and make the inner formwork clamping arm 1 4 and the inner formwork clamping arm 2 5 be respectively located between these two sets of oppositely arranged side formworks 6, that is, on the inner side of the casting space. Note that the bottom ends of the inner formwork clamping arm 1 4 and the inner formwork clamping arm 2 5 should be higher than the top elevation of the concrete structure; by adjusting the telescopic support 1, narrow the distance between the outer formwork clamping arm 1 2 and the outer formwork clamping arm 2 3 so that they respectively abut against the separated surfaces of the two sets of side formworks 6; then adjust the positions of the inner formwork clamping arm 1 4 and the inner formwork clamping arm 2 5 on the telescopic support 1 so that they respectively abut against the facing surfaces of the two sets of side formworks 6, thereby realizing the clamping and fastening of the side formwork 6.

[0038] Adopting the above solution can clamp the casting formwork bidirectionally, avoiding problems such as displacement, formwork bulging and leakage of mortar; it can avoid using tie bolts to fix the formwork, reduce the consumption of pipe fittings and hole plugging materials, reduce the construction cost, and at the same time can also avoid the cumbersome hole plugging process, ensure the construction quality and improve the construction efficiency.

[0039] In this embodiment, the telescopic support 1 includes an adjustable distance screw 11, a sleeve 12, and a sliding rod 13. One end of the sleeve 12 is sealed, and the sliding rod 13 slidably penetrates through the open end of the sleeve 12; the adjustable distance screw 11 passes through the sealed end of the sleeve 12 and is screwed to the sliding rod 13; the outer formwork clamping arm 1 2 is perpendicular to the sleeve 12 and is fixedly connected to the sleeve 12, and the outer formwork clamping arm 2 3 is perpendicular to the sliding rod 13 and is fixedly connected to the sliding rod 13; by rotating the adjustable distance screw 11, the position of the sliding rod 13 in the sleeve 12 can be changed, thereby adjusting the total length of the telescopic support 1 and realizing the adjustment of the distance between the outer formwork clamping arm 1 2 and the outer formwork clamping arm 2 3.

[0040] Refer to the appendix Figure 3, two groups of limiting ring plates 14 are sleeved on the distance-adjusting screw rod 11. The two groups of limiting ring plates 14 are respectively located inside and outside the sleeve 12 and abut against the sealing end of the sleeve 12. An internal thread groove 15 coaxial with the limiting ring plate 14 is configured on the sliding rod 13, and the internal thread groove 15 is connected to the distance-adjusting screw rod 11. The limiting ring plate 14 can ensure that the connection point between the distance-adjusting screw rod 11 and the sleeve 12 remains unchanged and does not affect the smooth rotation of the distance-adjusting screw rod 11. During construction, the outer plate clamping arm one 2 is pressed against a group of side templates 6, and by rotating the distance-adjusting screw rod 11, the outer plate clamping arm two 3 can be gradually close to the outer plate clamping arm one 2, and then press against the other group of side templates 6.

[0041] In this embodiment, the inner plate clamping arm one 4 and the inner plate clamping arm two 5 have the same configuration, and both include a socket frame 41, a locking member 42 and an abutting plate 43. When the inner plate clamping arm one 4 is connected to the telescopic support 1: the socket frame 41 is sleeved outside the sleeve 12, the abutting plate 43 is located between the inner wall of the socket frame 41 and the outer wall of the sleeve 12, and the locking member 42 connects the socket frame 41 and the abutting plate 43 and is used to press the abutting plate 43 against the outer wall of the sleeve 12. When the inner plate clamping arm two 5 is connected to the telescopic support 1: the socket frame 41 is sleeved outside the sliding rod 13, the abutting plate 43 is located between the inner wall of the socket frame 41 and the outer wall of the sliding rod 13, and the locking member 42 connects the socket frame 41 and the abutting plate 43 and is used to press the abutting plate 43 against the outer wall of the sliding rod 13.

[0042] The above-mentioned locking member 42 can adopt a high-strength bolt, and an installation screw hole 44 is configured on the socket frame 41. The locking member 42 penetrates through the installation screw hole 44 and is threadedly connected thereto, and the abutting plate 43 is fixedly connected to the locking member 42. When the locking member 42 is rotated, the distance between the abutting plate 43 and the inner wall of the socket frame 41 can be changed. When the distance between the abutting plate 43 and the inner wall of the socket frame 41 decreases, the abutting plate 43 will separate from the telescopic support 1, and at this time, the socket frame 41 can slide on the telescopic support 1; when the distance between the abutting plate 43 and the inner wall of the socket frame 41 increases, the distance between the abutting plate 43 and the outer wall of the sleeve 12 or the outer wall of the sliding rod 13 decreases, and finally the abutting plate 43 will press against the outer wall of the sleeve 12 or the outer wall of the sliding rod 13, so that the position of the socket frame 41 on the telescopic support 1 is fixed.

[0043] In the above technical solution, the part of the outer edge of the socket frame 41 that extends beyond the telescopic support 1 serves as the part that abuts against the side formwork 6, and cooperates with the outer plate clamping arm 1 or the outer plate clamping arm 2 to clamp and fix the side formwork 6. In this embodiment, the outer plate clamping arm 1 and the outer plate clamping arm 2 have the same configuration, which can be a plate member or a rod member, etc. To reduce the area of the inner plate clamping arm 1 and the inner plate clamping arm 2 in contact with the pouring slurry, resulting in surface defects in the concrete structure, the lengths of the inner plate clamping arm 1 and the inner plate clamping arm 2 should be less than the length of the outer plate clamping arm 1 (or the outer plate clamping arm 2), reducing the contact surface between the inner plate clamping arm 1 and the inner plate clamping arm 5 and the side formwork, generally controlled at a height of 15 mm. The bottom ends of the inner plate clamping arm 1 and the inner plate clamping arm 2 should be trapezoidal, triangular, etc., and a concrete release agent should be applied to the surfaces of the bottom ends of the inner plate clamping arm 1 and the inner plate clamping arm 2 in contact with the concrete slurry, so that it is easy to remove this fixture after the concrete structure reaches the strength and reduces the quality defects of the concrete structure. Moreover, rubber cushions 8 are respectively provided on the facing surfaces of the outer plate clamping arm 1 and the inner plate clamping arm 1, and on the facing surfaces of the outer plate clamping arm 2 and the inner plate clamping arm 2, to increase the friction force with the side formwork 6, better prevent the side formwork from sliding relative to the outer plate clamping arm during concrete vibration or under external force, and improve the connection stability.

[0044] In addition, anti-detachment members 7 are respectively configured on the facing surfaces of the outer plate clamping arm 1 and the outer plate clamping arm 2. The anti-detachment members 7 protrude from the surfaces of the outer plate clamping arm 1 or the outer plate clamping arm 2, and their lengths are greater than the distance between the outer plate clamping arm 1 and the inner plate clamping arm 1 (or the distance between the outer plate clamping arm 2 and the inner plate clamping arm 2). The anti-detachment members 7 can be of any shape, such as a conical shape, a triangular shape, a rod shape, etc. Their function is to penetrate the side formwork 6 and lap on the top of the masonry wall to prevent this fixture and the side formwork 6 from falling. For easy demoulding, a concrete release agent can be applied to the outer wall of the anti-detachment member 7 before pouring, or a rubber cushion 8 can be configured on the surface of the anti-detachment member 7.

[0045] The length of the anti-detachment member 7 does not need to be too large, as long as it can fix this fixture and the side formwork 6 on the top of the masonry wall. After demoulding, the size of the groove left by the anti-detachment member 7 on the concrete structure is equal to the size of the end of the anti-detachment member 7 that extends beyond the side formwork 6. This groove is not a through hole, and the size is generally small and will not affect the strength of the concrete structure. During later decoration or plastering, it can be directly filled. Compared with plugging the holes of the tie bolts, the operation and consumables in this embodiment are greatly reduced.

[0046] In addition, rubber pads 9 are respectively configured on the facing surfaces of the outer plate clamping arm 1 and the outer plate clamping arm 2. The anti-detachment member 7 is located between the inner plate clamping arm 1 and the rubber pad 9 (or between the inner plate clamping arm 2 and the rubber pad 9). The thickness of the rubber pad 9 is greater than the thickness of the rubber cushion 8. During construction, the rubber pad 9 is located below the side formwork 6 to prevent slurry leakage at the joint between the bottom end of the side formwork 6 and the masonry wall.

[0047] Compared with the prior art, the beneficial effects of the present invention include: This fixture can clamp the casting formwork bidirectionally, avoiding problems such as displacement or formwork bulging and leakage of grout; It can avoid the cumbersome procedures of using wooden strips as secondary keels, double steel pipes as main keels, and using tie bolts to fix the formwork in traditional construction methods. This fixture can be reused, greatly reducing the consumption of pipe fittings and hole-blocking materials, reducing the construction cost, and can also avoid the problems of easy formwork bulging and grout leakage when using the existing tool "step-by-step tightener" for formwork reinforcement.

[0048] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the 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. A new fixing fixture for a casting formwork, characterized in that, Comprising: A telescopic bracket, with both ends of the telescopic bracket respectively connecting an outer clamping arm one of the plate and an outer clamping arm two of the plate. The telescopic bracket is telescopic to adjust the distance between the outer clamping arm one of the plate and the outer clamping arm two of the plate; And an inner clamping arm one of the plate and an inner clamping arm two of the plate which are respectively movably connected to the telescopic bracket, and the distance between the inner clamping arm one of the plate and the inner clamping arm two of the plate is adjustable.

2. The novel fixing fixture for the casting formwork according to claim 1, wherein The telescopic bracket includes an adjustable distance screw, a sleeve and a sliding rod. One end of the sleeve is sealed, and the sliding rod slidably penetrates through the open end of the sleeve; the adjustable distance screw penetrates through the sealed end of the sleeve and is screwed to the sliding rod.

3. The novel fixing fixture for the casting formwork according to claim 2, characterized in that Two groups of limit ring plates are sleeved on the adjustable distance screw. The two groups of limit ring plates are respectively located inside and outside the sleeve and abut against the sealed end of the sleeve; an internal thread groove coaxial with the limit ring plate is configured on the sliding rod, and the internal thread groove connects the adjustable distance screw.

4. The novel fixing fixture for the casting formwork according to any one of claims 1-3, characterized in that, The inner clamping arm one of the plate and the inner clamping arm two of the plate have the same configuration. The inner clamping arm one of the plate includes a socket frame and a locking member. The socket frame is sleeved outside the telescopic bracket; the locking member connects the socket frame and a contact plate located inside the socket frame for tightly pressing the contact plate against the outer wall of the telescopic bracket.

5. The novel fixing fixture for the casting formwork according to claim 4, wherein An installation screw hole is configured on the socket frame. The locking member penetrates through the installation screw hole and is threadedly connected thereto, and the contact plate is fixedly connected to the locking member.

6. The novel fixing fixture for the casting formwork according to any one of claims 1-3 and 5, characterized in that, The outer clamping arm one of the plate and the outer clamping arm two of the plate have the same configuration, and their lengths are greater than the length of the inner clamping arm one of the plate; Rubber cushion layers are respectively provided on the facing surfaces of the outer clamping arm one of the plate and the inner clamping arm one of the plate, and on the facing surfaces of the outer clamping arm two of the plate and the inner clamping arm two of the plate.

7. The novel fixing fixture for the casting form according to claim 6, characterized in that, Anti-detachment members are respectively configured on the facing surfaces of the outer clamping arm one of the plate and the outer clamping arm two of the plate. The anti-detachment members protrude from the surface of the outer clamping arm one of the plate or the outer clamping arm two of the plate, and their lengths are greater than the distance between the outer clamping arm one of the plate and the inner clamping arm one of the plate.

8. The novel fixing fixture for the casting form according to claim 7, characterized in that, Rubber cushion blocks are respectively configured on the facing surfaces of the outer clamping arm one of the plate and the outer clamping arm two of the plate. The anti-detachment members are located between the inner clamping arm one of the plate and the rubber cushion blocks, and the thickness of the rubber cushion blocks is greater than the thickness of the rubber cushion layers.

9. A method for constructing a new type of fixing fixture for the casting formwork according to any one of claims 1-8, characterized in that, Including steps: Placing a telescopic bracket at the top of two groups of relatively arranged side templates, so that the outer clamping arm one of the plate and the outer clamping arm two of the plate are respectively located on the separated sides of the two groups of side templates, and the inner clamping arm one of the plate and the inner clamping arm two of the plate are respectively located between the two groups of side templates; Adjusting the telescopic bracket to reduce the distance between the outer clamping arm one of the plate and the outer clamping arm two of the plate so that they respectively abut against the separated surfaces of the two groups of side templates; Adjusting the positions of the inner clamping arm one of the plate and the inner clamping arm two of the plate on the telescopic bracket so that they respectively abut against the facing surfaces of the two groups of side templates.

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