Fastener for butt joint and assembly of wooden formworks

Abstract

The utility model relates to a wooden formwork butt joint assembly fastener which comprises a first formwork body and a second formwork body, a first installation assembly is fixed to the first formwork body, and a second installation assembly is fixed to the second formwork body. The first mounting assembly comprises a U-shaped mounting plug bush; one end of the connecting mechanism is connected with the U-shaped mounting plug bush through a bolt, and the other end of the connecting mechanism is provided with an insertion strip with a ratchet bar I; the second mounting assembly is provided with an L-shaped slot, and a ratchet bar II is arranged at the bottom of the slot; when the inserting strip is inserted into the inserting groove, the first ratchet bar and the second ratchet bar are meshed and locked. A pressing plate is arranged at the end of the inserting strip, and the first ratchet bar and the second ratchet bar are separated by pressing the pressing plate. According to the fastening piece for butt joint and assembly of the wooden formworks, disassembly and assembly are fast, locking is achieved when inserting is conducted, unlocking is achieved when pressing is conducted, and the operation time is shortened by more than 60%; the template is protected, and the repeated utilization rate of the template is increased to 95%; the structure is reliable, double guarantee of ratchet meshing and reed elasticity is achieved, and maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a fastener for the butt joint assembly of wooden formwork. Background Technology

[0002] Building construction refers to the process of building various structures and buildings. It encompasses multiple stages, from site leveling and foundation construction to the erection of the main structure and decoration. Early planning and design, site surveys, and material preparation are essential. In building construction, wooden formwork plays a significant role. It provides precise shape and dimensions for concrete pouring, ensuring that building components, such as walls and columns, meet design requirements. It can withstand the weight of concrete and construction loads, ensuring construction safety. Wooden formwork is lightweight, easy to process, transport, and install, improving construction efficiency. Furthermore, it is relatively inexpensive, reusable, and effectively controls project costs, making it a commonly used formwork material in building construction.

[0003] When using wooden formwork, construction workers need to assemble multiple formwork panels into the required shape. Currently, workers often manually nail the panels together or use a pneumatic nail gun. While this method secures the formwork, it's cumbersome because it requires workers to drive multiple nails along the seams. When dismantling the formwork, workers often force it, which is time-consuming, laborious, and damages the edges, leaving many unusable nails. Some workers use two T-shaped plates or corner brackets to secure two formwork panels, then tighten them with bolts. However, this method requires tools to limit the nuts before disassembling the bolts, making it also cumbersome. Utility Model Content

[0004] To address the shortcomings of the existing technology, a fastener for assembling wooden templates that can be quickly assembled and disassembled without damaging the template and can be reused is provided, solving the problems of low efficiency and high destructiveness of traditional nailing or bolting connections.

[0005] The technical solution adopted by this utility model is:

[0006] A fastener for splicing wooden templates includes a first template body and a second template body. A first mounting component is fixed to the first template body, and a second mounting component is fixed to the second template body.

[0007] The first mounting component includes a U-shaped mounting sleeve;

[0008] One end of the connecting mechanism is connected to the mounting sleeve by bolts, and the other end is provided with a strip with a ratchet.

[0009] The second mounting component is provided with an L-shaped slot, and a ratchet rack is provided at the bottom of the slot;

[0010] When the insert is inserted into the slot, ratchet rack one and ratchet rack two engage and lock together.

[0011] The insertion strip has a pressing plate at its end. Pressing the pressing plate separates the ratchet bar one from the ratchet bar two.

[0012] Preferably, the connecting mechanism includes a U-shaped connecting plate, and a spring mechanism is snapped into the inner side of the U-shaped connecting plate. The spring mechanism includes a horizontally placed V-shaped spring body, and the rectangular snap-fit ​​portions at both ends of the spring body are embedded in the slots of the insert.

[0013] Preferably, the insert includes an upper insert and a lower insert arranged in parallel, and both the upper surface of the upper insert and the lower surface of the lower insert are provided with a ratchet; both the lower surface of the upper insert and the upper surface of the lower insert are provided with the slot.

[0014] Preferably, the first mounting component further includes a mounting base, the U-shaped mounting sleeve is welded to the mounting base, and the mounting base is fixed to the first template body by a self-tapping screw.

[0015] Preferably, the second mounting component includes a second mounting base, and the L-shaped slots are symmetrically arranged on the upper and lower sides of the second mounting base. The second mounting base is fixed to the second template body by a second self-tapping screw.

[0016] Preferably, the pressing plate has an L-shaped structure, including a horizontal part connected to the insert and a vertical part with a pin hole; the vertical part of the pressing plate of the upper insert is located outside the vertical part of the pressing plate of the lower insert, and the pin holes of the two vertical parts are aligned when pressed.

[0017] Preferably, the free end of the insert has a chamfered portion.

[0018] The advantages of this utility model over the prior art are:

[0019] This utility model discloses a fastener for connecting and assembling wooden templates. It allows for quick assembly and disassembly, locking upon insertion and unlocking upon pressing, requiring no tools and reducing operation time by more than 60%. It protects the template, leaving no nail hole residue and increasing template reuse rate to 95%. The structure is reliable, with ratchet engagement and spring elasticity providing dual protection, and tensile strength ≥5kN. Maintenance is convenient, as the spring mechanism can be replaced separately, reducing operating costs.

[0020] This utility model discloses a fastener for butt-jointing wooden templates. Through the arrangement of a first installation component, a connecting mechanism, a spring mechanism, and a second installation component, the device can tightly lock two templates together, facilitating disassembly and reuse. It also minimizes obstruction of template gaps, making inspection and subsequent construction operations easier.

[0021] This utility model discloses a fastener for connecting and assembling wooden templates. Through the setting of a connecting mechanism, a spring mechanism, and a second installation component, workers can lock the two templates simply by inserting them together, and unlock them by pressing and pulling them out. This effectively improves work efficiency, reduces manpower waste, and lowers the labor intensity of workers.

[0022] This utility model discloses a fastener for connecting and assembling wooden templates. The number and elasticity of the spring mechanism can be adjusted according to the needs of the site to ensure effective connection between adjacent templates and improve the reliability of module installation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram showing the connection between the fasteners for the wooden template and the template in this utility model.

[0024] Figure 2 This is a structural diagram of the first installation component, the connecting mechanism, the spring mechanism, and the second installation component of the wooden template butt joint fastener of this utility model.

[0025] Figure 3 This is a structural diagram of the first installation component of the wooden template butt joint fastener of this utility model;

[0026] Figure 4 This is a structural diagram of the connection mechanism for the wooden template butt joint assembly fastener of this utility model;

[0027] Figure 5 This is a structural diagram of the spring mechanism of the wooden template butt joint fastener of this utility model;

[0028] Figure 6 This is a structural diagram of the second installation component of the wooden template butt joint fastener of this utility model.

[0029] Explanation of symbols for key components in the attached diagram:

[0030] In the picture:

[0031] 1. First template body; 2. First mounting component; 201. Mounting base one; 202. Self-tapping screw one; 203. Mounting sleeve; 204. Bolt; 3. Connecting mechanism; 301. U-shaped connecting plate; 302. Fixing hole; 303. Insert; 3031. Upper insert; 3032. Lower insert; 304. Slot; 305. Ratchet one; 306. Chamfer; 307. Pressing plate; 308. Pin hole; 4. Spring mechanism; 401. V-shaped spring body; 402. Snap-fit ​​part; 5. Second mounting component; 501. Mounting base two; 502. Self-tapping screw two; 503. L-shaped slot; 504. Ratchet two; 6. Second template body. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0033] Appendix Figure 1-6 It is known that a wooden template splicing fastener includes a first template body 1 and a second template body 6, the first template body 1 is fixed with a first installation component 2, and the second template body 6 is fixed with a second installation component 5;

[0034] The first mounting component 2 includes a U-shaped mounting sleeve 203;

[0035] One end of the connecting mechanism 3 is provided with a fixing hole 302, which is connected to the U-shaped mounting sleeve 203 by bolts 204, and the other end is provided with a strip 303 with a ratchet 305;

[0036] The second mounting component 5 is provided with an L-shaped slot 503, and a ratchet rack 504 is provided at the bottom of the slot 503;

[0037] When the insert 303 is inserted into the L-shaped slot 503, the first ratchet 305 engages and locks with the second ratchet 504.

[0038] The insert 303 has a pressing plate 307 at its end. Pressing the pressing plate 307 separates the ratchet bar 305 from the ratchet bar 504.

[0039] Preferably, the connecting mechanism 3 includes a U-shaped connecting plate 301, and a spring mechanism 4 is snapped into the inner side of the U-shaped connecting plate 301. The spring mechanism 4 includes a horizontally placed V-shaped spring body 401, and the rectangular snap-fit ​​portions 402 at both ends of the V-shaped spring body 401 are embedded in the slots 304 of the insert 303.

[0040] Preferably, the insert 303 includes an upper insert 3031 and a lower insert 3032 arranged in parallel. The upper surface of the upper insert 3031 and the lower surface of the lower insert 3032 are both provided with ratchet bars 305. The lower surface of the upper insert 3031 and the upper surface of the lower insert 3032 are both provided with slots 304.

[0041] Preferably, the first mounting component 2 further includes a mounting base 201, the U-shaped mounting sleeve 203 is welded to the mounting base 201, and the mounting base 201 is fixed to the first template body 1 by self-tapping screws 202.

[0042] Preferably, the second mounting component 5 includes a second mounting base 501, and the L-shaped slots 503 are symmetrically arranged on the upper and lower sides of the second mounting base 501. The second mounting base 501 is fixed to the second template body 6 by self-tapping screws 502.

[0043] Preferably, the pressing plate 307 has an L-shaped structure, including a horizontal part connected to the insert 303 and a vertical part with a pin hole 308; the vertical part of the pressing plate of the upper insert 3031 is located outside the vertical part of the pressing plate of the lower insert 3032, and the pin holes 308 are aligned when the two vertical parts are pressed.

[0044] Preferably, the free end of the insert 303 is provided with a chamfered portion 306.

[0045] The working process of this utility model's wooden template butt joint fastener is as follows:

[0046] Locking: Align the insert 303 with the L-shaped slot 503 and insert it. The first ratchet 305 engages with the second ratchet 504.

[0047] Unlock: Press the vertical part of the upper and lower pressing plates 307 to force the insert 303 to deform and separate the ratchet. Pull out the insert to unlock. Inserting the pin can keep it unlocked for easy transportation.

[0048] Key design parameters:

[0049] Ratchet angle: 30° (to ensure one-way locking);

[0050] Spring body thickness: 1.5mm spring steel (elastic deformation ≥10mm);

[0051] Chamfered edge of insert: 45°.

[0052] When the template is no longer in use, the staff will disassemble it as follows:

[0053] Self-tapping screw 202 and self-tapping screw 502 are removed from the first template body 1 and the second template body 6 respectively, and then the entire utility model is disassembled. Then, the two pressing plates 307 are pressed towards the center, so that the ratchet 305 and the ratchet 504 are separated. At this time, the insert 303 can be dislodged from the slot 503, completing the separation of the second mounting component 5 from the first mounting component 2 and the connecting mechanism 3.

[0054] This utility model discloses a fastener for connecting and assembling wooden templates. It allows for quick assembly and disassembly, locking upon insertion and unlocking upon pressing, requiring no tools and reducing operation time by more than 60%. It protects the template, leaving no nail hole residue and increasing template reuse rate to 95%. The structure is reliable, with ratchet engagement and spring elasticity providing dual protection, and tensile strength ≥5kN. Maintenance is convenient, as the spring mechanism can be replaced separately, reducing operating costs.

[0055] This utility model discloses a fastener for butt-jointing wooden templates. Through the arrangement of a first installation component, a connecting mechanism, a spring mechanism, and a second installation component, the device can tightly lock two templates together, facilitating disassembly and reuse. It also minimizes obstruction of template gaps, making inspection and subsequent construction operations easier.

[0056] This utility model discloses a fastener for connecting and assembling wooden templates. Through the setting of a connecting mechanism, a spring mechanism, and a second installation component, workers can lock the two templates simply by inserting them together, and unlock them by pressing and pulling them out. This effectively improves work efficiency, reduces manpower waste, and lowers the labor intensity of workers.

[0057] This utility model discloses a fastener for connecting and assembling wooden templates. The number and elasticity of the spring mechanism can be adjusted according to the needs of the site to ensure effective connection between adjacent templates and improve the reliability of module installation.

[0058] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the structure of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A fastener for butt joint assembly of wooden templates, comprising a first template body (1) and a second template body (6), wherein a first mounting component (2) is fixed to the first template body (1) and a second mounting component (5) is fixed to the second template body (6), characterized in that: The first mounting component (2) includes a U-shaped mounting sleeve (203); One end of the connecting mechanism (3) is connected to the U-shaped mounting sleeve (203) by a bolt (204), and the other end is provided with a strip (303) with a ratchet (305). The second mounting component (5) is provided with an L-shaped slot (503), and a ratchet rack (504) is provided at the bottom of the L-shaped slot (503); When the insert (303) is inserted into the L-shaped slot (503), the first ratchet (305) and the second ratchet (504) engage and lock. The insert (303) has a pressing plate (307) at its end. Pressing the pressing plate (307) separates the first ratchet (305) from the second ratchet (504).

2. The fastener for butt joint assembly of wooden templates according to claim 1, characterized in that: The connecting mechanism (3) includes a U-shaped connecting plate (301), and a spring mechanism (4) is snapped into the inner side of the U-shaped connecting plate (301). The spring mechanism (4) includes a horizontally placed V-shaped spring body (401), and the rectangular snap-fit ​​portions (402) at both ends of the V-shaped spring body (401) are embedded in the slots (304) of the insert (303).

3. The wooden template butt joint fastener according to claim 2, characterized in that: The insert (303) includes an upper insert (3031) and a lower insert (3032) arranged in parallel. The upper surface of the upper insert (3031) and the lower surface of the lower insert (3032) are provided with a ratchet (305). The lower surface of the upper insert (3031) and the upper surface of the lower insert (3032) are provided with the slot (304).

4. The fastener for butt joint assembly of wooden templates according to claim 1, characterized in that: The first mounting component (2) also includes a mounting base (201), the U-shaped mounting sleeve (203) is welded to the mounting base (201), and the mounting base (201) is fixed to the first template body (1) by a self-tapping screw (202).

5. The fastener for butt joint assembly of wooden templates according to claim 1, characterized in that: The second mounting component (5) includes a second mounting base (501), and the L-shaped slots (503) are symmetrically arranged on the upper and lower sides of the second mounting base (501). The second mounting base (501) is fixed to the second template body (6) by a second self-tapping screw (502).

6. The wooden template butt joint fastener according to claim 3, characterized in that: The pressing plate (307) has an L-shaped structure, including a horizontal part connected to the insert (303) and a vertical part with a pin hole (308); the vertical part of the pressing plate of the upper insert (3031) is located outside the vertical part of the pressing plate of the lower insert (3032), and the pin holes (308) are aligned when the two vertical parts are pressed.

7. The fastener for butt joint assembly of wooden templates according to claim 1, characterized in that: The free end of the insert (303) is provided with a chamfered portion (306).

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