Secondary structure lintel template fixing device

Abstract

The utility model provides a secondary structure lintel formwork fixing device which comprises a first connecting beam and a plurality of sets of limiting frames distributed in the extending direction of the first connecting beam, each limiting frame comprises a second connecting beam, a first abutting piece and a second abutting piece, the first abutting pieces and the second abutting pieces are arranged on the second connecting beams, and the distance between the first abutting pieces and the second abutting pieces is adjustable; the first abutting piece and the second abutting piece are each of a V-shaped structure, and the two ends of each V-shaped structure are connected with the second connecting beam, so that the first abutting piece and the second connecting beam form a triangular stable structure, and the second abutting piece and the second connecting beam form a triangular stable structure. According to the secondary structure lintel side template limiting device, the most stable part of the limiting frame is used for limiting the part, which is most prone to deformation and mold expansion, of the secondary structure lintel side template, the limiting effect is improved through a triangular stable structure, the construction quality is guaranteed, and meanwhile the problem caused by using a split screw rod is avoided; the device is suitable for construction of lintels of different sizes and can be recycled, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting formwork support, in particular to a secondary structure lintel formwork fixing device. Background Art

[0002] During the construction of the lintel of the secondary structure of a building, two methods are usually used to fix the lintel formwork: one is to use tension bolts to drill holes in the lintel formwork and install them to control the distance between the formwork on both sides of the lintel. After the lintel concrete is poured, the tension bolts are removed; the other is to use wooden boards or wooden squares to make fixing clips for the lintel formwork according to the size of the lintel, and remove the clips after the lintel is poured.

[0003] The above-mentioned traditional construction methods have the following shortcomings: after the tension bolts of the former are removed, a large number of bolt holes will be left in the lintel, which need to be sealed and polished later, increasing labor and material costs and affecting the overall appearance of the secondary structure; although the latter does not destroy the integrity of the lintel, the connection between the clips and the side formwork is difficult to ensure during the pouring process, and the clips often move, and the accuracy of the lintel size cannot be guaranteed. In addition, the clips need to be customized on site according to the size of each lintel. The template clips of lintels of different sizes are not universal, which not only increases labor and material losses, but also affects the construction progress. Utility Model Content

[0004] The purpose of the utility model is to provide a secondary structure lintel formwork fixing device to solve the problems in the above background.

[0005] The technical solution of the present utility model includes: a secondary structure lintel formwork fixing device, which includes a first connecting beam and several groups of limit frames distributed along its extension direction, the limit frames include a second connecting beam, a first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged on the second connecting beam, and the distance between the two is adjustable.

[0006] Preferably, the first clamping member and the second clamping member are both V-shaped structures, and both ends of the V-shaped structure are connected to the second connecting beam, so that the first clamping member and the second connecting beam, and the second clamping member and the second connecting beam respectively form triangular stable structures.

[0007] Preferably, both ends of the V-shaped structure are slidably mounted on the second connecting beam, and a first screw connection member for limiting the first clamping member and a second screw connection member for limiting the second clamping member are screwed onto the second connecting beam.

[0008] Preferably, at least one first screw connection member is provided between the two ends of the first clamping member and on the side of the first clamping member facing away from the second clamping member; and at least one second screw connection member is provided between the two ends of the second clamping member and on the side of the second clamping member facing away from the first clamping member.

[0009] Preferably, the second connecting beam includes an outer sleeve and an inner sliding rod, the inner sliding rod is slidably arranged in the outer sleeve and is fixed by a locking rod that radially penetrates the outer sleeve and the inner sliding rod.

[0010] Preferably, the locking rod is connected to one or more of the second connecting beams.

[0011] Preferably, the facing surfaces of the first fastening member and the second fastening member are both perpendicular to the second connecting beam.

[0012] Preferably, at least two first connecting beams are provided, and each of the first connecting beams is provided with a plurality of connecting holes, wherein connecting pieces for fixing the second connecting beams are passed through the connecting holes.

[0013] The beneficial effects of the present invention are as follows: the installation direction of the device is opposite to the template opening direction of the secondary structure lintel, and the most stable connection part on the limit frame is used to limit the end (i.e. the top) of the secondary structure lintel side template that is most prone to deformation and expansion, and the structural stability of the bottom end of the limit frame is improved by the triangular stabilizing structure, thereby improving the limiting effect on the bottom end of the secondary structure lintel side template. Under the premise of ensuring construction quality, the use of tension screws is avoided, and the problems and repair procedures caused by holes left on the lintel are avoided, thereby reducing manpower and material costs. The multi-directional adjustability of the device makes it suitable for the construction needs of lintels of various sizes. It can be used multiple times after being formed once, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of some embodiments of the utility model;

[0015] Figure 2 It is a top view of some embodiments of the utility model;

[0016] Figure 3 It is a front view of some other embodiments of the utility model;

[0017] Figure 4 It is a top view of other embodiments of the present invention.

[0018] In the picture:

[0019] 1. First coupling beam; 1-1. Connection hole;

[0020] 2. Limiting frame; 2-1. Second connecting beam; 2-11. Outer sleeve; 2-12. Inner slide bar; 2-13. First positioning hole; 2-14. Second positioning hole; 2-2. First abutting member; 2-3. Second abutting member;

[0021] 3. a first screw connection;

[0022] 4. Second screw connection;

[0023] 5. Locking rod;

[0024] 6. Connectors;

[0025] 7. Side formwork. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] Reference Attachment Figure 1-4 This embodiment provides a secondary structure lintel formwork fixing device, which includes a first connecting beam 1 and multiple groups of limiting frames 2 distributed along the extension direction thereof, each group of limiting frames 2 is provided with a second connecting beam 2-1, a first fastening member 2-2 and a second fastening member 2-3, the first fastening member 2-2 and the second fastening member 2-3 are provided on the second connecting beam 2-1, and the distance between the first fastening member 2-2 and the second fastening member 2-3 is adjustable. By adopting the above technical solution, when the first connecting beam 1 and the side formwork 7 of the secondary structure lintel are arranged in the same direction, the multiple groups of limiting frames 2 can be distributed along the length direction of the secondary structure lintel side formwork 7, and then the first fastening member 2-2 and the second fastening member 2-3 on each second connecting beam 2-1 are used to limit and fix different parts of the secondary structure lintel side formwork 7.

[0031] During construction, the fixing device needs to be installed on the side formwork 7 of the secondary structure lintel from top to bottom, so that the fixed end of the first fastening member 2-2 (i.e. the end connected to the second connecting beam 2-1) and the fixed end of the second fastening member 2-3 (i.e. the end connected to the second connecting beam 2-1) are both located at the free end (i.e. the top end) of the secondary structure lintel side formwork 7. This is because the closer to the connection between the first fastening member 2-2 and the second connecting beam 2-1, the more stable the connection between the two (the same applies to the second fastening member 2-3), and the closer to the free end of the secondary structure lintel side formwork 7, the easier it is to deform and expand the formwork. Therefore, the above-mentioned installation method is most beneficial to ensure the casting quality.

[0032] In this embodiment, the first clamping member 2-2 and the second clamping member 2-3 are both V-shaped structures, and the two ends of the V-shaped structure are connected to the second connecting beam 2-1, so that the first clamping member 2-2 and the second connecting beam 2-1, and the second clamping member 2-3 and the second connecting beam 2-1 respectively form a triangular stable structure. With this structure, the position stability of the free end (i.e., the bottom end) of the first clamping member 2-2 and the free end (i.e., the bottom end) of the second clamping member 2-3 can be improved. This is because, although the side formwork 7 and the bottom formwork of the secondary structure lintel are fixed with nails, the bottom end of the side formwork 7 may be deformed or expanded, and the farther away the part of the first clamping member 2-2 is from the second connecting beam 2-1, the easier it is to shake and shift. Therefore, the first clamping member 2-2 is set to a V-shaped structure, and one end arm of the V-shaped structure is used to directly abut the side formwork 7 of the secondary structure lintel, and the two ends of the other end arm are respectively tightly connected to the aforementioned end arm and the second connecting beam 2-1. The triangular stabilizing structure avoids shaking and shifting of the bottom end of the first clamping member 2-2, thereby improving the clamping effect on the side formwork 7 of the secondary structure lintel (the same applies to the second clamping member 2-3).

[0033] The two ends of the V-shaped structure are slidably mounted on the second connecting beam 2-1. The outer wall of the second connecting beam 2-1 is threaded and screwed with a first screw member 3 that limits the position of the first abutting member 2-2 and a second screw member 4 that limits the position of the second abutting member 2-3. By changing the position of the first screw member 3 and the second screw member 4, the position of the first abutting member 2-2 and the second abutting member 2-3 can be adjusted, and the spacing between them can be changed to accommodate the construction of lintels of different widths.

[0034] In order to ensure the tightening effect on the side formwork 7 of the secondary structure lintel, the facing surfaces of the first tightening member 2-2 and the second tightening member 2-3 are perpendicular to the second connecting beam 2-1, that is, the first tightening member 2-2 and the second tightening member 2-3 are parallel to the side formwork 7 of the secondary structure lintel. When the distance between the two is adjusted appropriately, there will be no gap between the first tightening member 2-2 and the side formwork 7, and the second tightening member 2-3 and the side formwork 7, which can ensure the tightening effect on various parts of the side formwork 7 along the vertical direction.

[0035] In order to ensure the fixing effect of the first tightening member 2-2 and the second tightening member 2-3, at least one first screw connection member 3 is set between the two ends of the first tightening member 2-2 and on the side of the first tightening member 2-2 facing away from the second tightening member 2-3; at least one second screw connection member 4 is set between the two ends of the second tightening member 2-3 and on the side of the second tightening member 2-3 facing away from the first tightening member 2-2.

[0036] The second connecting beam 2-1 can be integrally formed as required, or can be length-adjustable to increase the adjustment range of the distance between the first pressing member 2-2 and the second pressing member 2-3. Figure 3-4 ), the second connecting beam 2-1 can be configured to include an outer sleeve 2-11 and an inner slide bar 2-12, the inner slide bar 2-12 being slidably disposed in the outer sleeve 2-11 and being fixed by a locking rod 5 that radially penetrates the outer sleeve 2-11 and the inner slide bar 2-12. In a specific implementation, a plurality of first positioning holes 2-13 can be provided on the outer sleeve 2-11, and a plurality of second positioning holes 2-14 can be provided on the inner slide bar 2-12. Different first positioning holes 2-13 and second positioning holes 2-14 can be matched, and the locking rod 5 can then be passed through them. Optionally, the first positioning holes 2-13 and the second positioning holes 2-14 can be configured as screw holes, and the outer wall of the locking rod 5 can be provided with threads, or the first positioning holes 2-13 and the second positioning holes 2-14 can be smooth holes, and the locking rod 5 includes a threaded rod body and a nut screwed thereon.

[0037] The number and length of the above-mentioned locking rods 5 can be configured according to actual needs. Multiple small-sized locking rods 5 can be used individually to connect and fix each second connecting beam 2-1, and one large-sized locking rod 5 can be used to connect and fix multiple second connecting beams 2-1, where the latter is more convenient to operate and use.

[0038] At least two first connecting beams 1 are provided, each with a plurality of connection holes 1-1. Connectors 6 for securing second connecting beams 2-1 are inserted through these holes 1-1. These connectors 6 can be high-strength bolts. During implementation, the density of the limit frames 2 can be varied by increasing or decreasing the number of second connecting beams 2-1 and adjusting their installation positions to accommodate the construction requirements of lintels of varying sizes.

[0039] Compared with the prior art, the beneficial effects of the present invention are: the installation direction of the device is opposite to the template opening direction of the secondary structure lintel, and the most stable connection part on the limit frame 2 is used to limit the end (i.e. the top) of the secondary structure lintel side template 7 that is most prone to deformation and expansion, and the structural stability of the bottom end of the limit frame 2 is improved by the triangular stabilizing structure, thereby improving the limiting effect on the bottom end of the secondary structure lintel side template 7. Under the premise of ensuring construction quality, the use of tension screws is avoided, and the problems and repair procedures caused by holes left on the lintel are avoided, thereby reducing manpower and consumables costs; the multi-directional adjustability of the device makes it suitable for the construction needs of lintels of various sizes, and it can be used multiple times after being formed once, thereby reducing construction costs.

[0040] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A secondary structure lintel formwork fixing device, characterized in that: It comprises a first connecting beam and a plurality of limit frames distributed along its extension direction, wherein the limit frames comprise a second connecting beam, a first abutting member and a second abutting member, wherein the first abutting member and the second abutting member are arranged on the second connecting beam, and the distance between the two is adjustable.

2. The secondary structure lintel formwork fixing device according to claim 1 is characterized in that: The first fastening member and the second fastening member are both V-shaped structures, and both ends of the V-shaped structure are connected to the second connecting beam, so that the first fastening member and the second connecting beam, and the second fastening member and the second connecting beam respectively form triangular stable structures.

3. The secondary structure lintel formwork fixing device according to claim 2 is characterized in that: Both ends of the V-shaped structure are slidably sleeved on the second connecting beam, and the second connecting beam is screwed with a first screw connection member for limiting the position of the first fastening member and a second screw connection member for limiting the position of the second fastening member.

4. The secondary structure lintel formwork fixing device according to claim 3 is characterized in that: At least one first screw connection member is disposed between the two ends of the first clamping member and on the side of the first clamping member away from the second clamping member; at least one second screw connection member is disposed between the two ends of the second clamping member and on the side of the second clamping member away from the first clamping member.

5. The secondary structure lintel formwork fixing device according to any one of claims 2 to 4, characterized in that: The second connecting beam comprises an outer sleeve and an inner sliding rod, wherein the inner sliding rod is slidably arranged in the outer sleeve and is fixed by a locking rod which radially penetrates the outer sleeve and the inner sliding rod.

6. The secondary structure lintel formwork fixing device according to claim 5 is characterized in that: The locking rod is connected to one or more of the second connecting beams.

7. The secondary structure lintel formwork fixing device according to any one of claims 1-4 and 6, characterized in that: The facing surfaces of the first fastening member and the second fastening member are both perpendicular to the second connecting beam.

8. The secondary structure lintel formwork fixing device according to claim 7 is characterized in that: At least two first connecting beams are provided, and each of the first connecting beams is provided with a plurality of connecting holes, and connecting members for fixing the second connecting beams are passed through the connecting holes.

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