Beam mold fixing clamp for house building

By designing a beam formwork fixing clamp with a self-locking mechanism, the problem of unstable fixing caused by loose bolts was solved, and stable fixing of the beam formwork and high-quality casting were achieved.

CN223867635UActive Publication Date: 2026-02-03江苏屹泽鲲建设工程有限公司
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Patent Information

Application Number
CN202520441935.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-03
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

In existing building construction, the bolts of the beam formwork clamps are prone to loosening during vibration, resulting in unstable fixation and affecting the quality of beam pouring.

Method used

A fixing clamp consisting of an installation rod, a nut, a sleeve, and a spring is designed. The nut's locking block engages with a slot to achieve self-locking, preventing the nut from loosening and ensuring the clamp is stably fixed.

Benefits of technology

This effectively prevented the nuts from loosening, ensured the beam formwork was firmly fixed, and improved the quality of the beam pouring and surface finish.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223867635U_ABST
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Abstract

The utility model discloses a house building beam mould fixing clamp in the technical field of beam mould clamps, which comprises a mounting rod, a left fixing plate, a right fixing plate, threads, a first sleeve and nuts, and is characterized in that the threads are arranged on the surface of the mounting rod, and sliding chutes are arranged on the upper side and the lower side of the mounting rod; the first sleeve and the second sleeve are installed on the installation rod, the nut is installed on the installation rod and located on the right side of the second sleeve, a through groove is formed in the surface of the second sleeve, a push rod is arranged in the through groove, a clamping block is arranged on the surface of the left side of the nut, an installation groove is formed in the second sleeve, and a spring is arranged in the installation groove. A fixing ring is arranged at the right end of the spring, a clamping groove is formed in the surface of the right end of the fixing ring, after the nut is screwed, the short right-angle side of the clamping block clamps the short right-angle side of the clamping groove, and after the nut is screwed, the nut is self-locked and cannot be loosened, so that the nut is self-locked.
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Description

Technical Field

[0001] This utility model relates to the field of beam mold clamping technology, specifically a clamping device for fixing beam molds in building construction. Background Technology

[0002] In the process of building construction, the beams are all made of reinforced concrete. Before the beams are poured, beam molds need to be installed. The beam molds need to be fixed with clamps. For example, in a new type of beam formwork fixing clamp disclosed in Chinese patent literature (application number: CN202221474077.9), the movable arm can move. Then, the movable arm is driven to move by rotating the sleeve. After the movable arm and the fixed arm achieve the function of clamping the formwork, the fixing bolts are tightened to secure the movable arm. After the reinforced concrete is poured, the concrete needs to be compacted with a vibrator to remove air bubbles, prevent honeycomb defects, improve strength, and improve surface quality. When the vibrator is working, it continuously generates vibration. If the bolts are fixed individually, they are prone to loosening under continuous vibration, which will cause the clamp to fail to fix the formwork, resulting in poor beam pouring quality or pouring failure.

[0003] Therefore, we propose a fixing clamp for beam formwork in building construction. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing clamp for beam formwork in building construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing clamp for beam formwork in building construction, comprising an installation rod, a left fixing plate, a right fixing plate, a thread, a first sleeve, and a nut, characterized in that: the surface of the installation rod is provided with a thread, and both the upper and lower sides of the installation rod are provided with sliding grooves; the first sleeve and the second sleeve are installed on the installation rod; the nut is installed on the installation rod, with the nut located to the right of the second sleeve; the surface of the second sleeve is provided with a through groove, and a push rod is provided in the through groove; a locking block is provided on the left side surface of the nut; the second sleeve is provided with an installation groove, and a spring is provided in the installation groove; a fixing ring is provided at the right end of the spring, and a locking groove is provided on the right end surface of the fixing ring; a slider is provided inside the second sleeve, and the slider cooperates with the sliding groove.

[0006] Preferably, limit grooves are provided on the inner walls of both sides of the mounting groove, and limit blocks are provided on both sides of the fixing ring.

[0007] Preferably, the push rod is fixedly connected to the retaining ring.

[0008] Preferably, the right end of the fixing ring extends into a second sleeve, and the fixing ring and the right end of the second sleeve are slidably connected.

[0009] Preferably, the card block is triangular, and the card slot cooperates with the card block.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: During the tightening process of the nut, the locking block set on the nut rotates accordingly. After the locking block passes through a slot, the spring pushes the fixing ring back to the initial position. When the nut is tightened, the long inclined surface of the slot contacts the long inclined surface of the locking block without affecting the rotation of the locking block. When the nut is tightened, the short right-angled side of the locking block will lock the short right-angled side of the slot. After the nut is tightened, it self-locks, preventing the nut from loosening. This self-locking of the nut ensures stable fixation of the first and second sleeves, preventing the nut from loosening. Thus, this fixture effectively fixes the beam mold without loosening. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an enlarged view of section A of this utility model;

[0013] Figure 3 This is an enlarged view of the present invention (B).

[0014] Figure 4 This is a schematic diagram of the internal structure of the sleeve of this utility model;

[0015] Figure 5 This is an enlarged view of section C of this utility model;

[0016] Figure 6 This is a perspective view of the present utility model;

[0017] Figure 7 This is an enlarged view of section D of this utility model;

[0018] Figure 8 This is a cross-sectional view of the mounting rod of this utility model.

[0019] In the diagram: 1. Mounting rod; 2. Left fixing plate; 3. Right fixing plate; 4. Thread; 5. Slide groove; 6. First sleeve; 61. Second sleeve; 7. Nut; 8. Through groove; 9. Push rod; 10. Locking block; 11. Fixing ring; 12. Locking groove; 13. Mounting groove; 14. Spring; 15. Slider; 16. Limiting block; 17. Limiting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-8 This utility model provides a technical solution: a fixing clamp for beam formwork in building construction, comprising an installation rod 1, a left fixing plate 2, a right fixing plate 3, a thread 4, a first sleeve 6, and a nut 7. The installation rod 1 has a thread 4 on its surface, and sliding grooves 5 on both its upper and lower sides. The first sleeve 6 and the second sleeve 61 are mounted on the installation rod 1. The nut 7 is mounted on the installation rod 1, positioned to the right of the second sleeve 61. The second sleeve 61 has a through groove 8 on its surface, and a push rod 9 is disposed within the through groove 8. The left side surface of the nut 7 is provided with a locking block 10. The second sleeve 61 is provided with a mounting groove 13, and a spring 14 is provided inside the mounting groove 13. A fixing ring 11 is provided at the right end of the spring 14, and a locking groove 12 is provided on the right end surface of the fixing ring 11. A slider 15 is provided inside the second sleeve 61. The slider 15 cooperates with the sliding groove 5 to fix the building beam formwork, so that the left fixing plate 2 and the right fixing plate 3 are on the left and right sides of the beam formwork. When the first sleeve 6 is moved, the second sleeve 61 moves accordingly. The first sleeve 6 is provided with a locking block 10. The second sleeve 61 is provided with a locking groove 12 inside the first sleeve 6. Inside cylinder 61, the same slider 15 slides within the groove 5 during the movement of the first sleeve 6, causing the right fixing plate 3 on the first sleeve 6 to contact the beam mold. The nut 7 is then installed on the mounting rod 1. Rotating the nut 7 causes it to move to the left and contact the second sleeve 61. The nut 7 is then tightened. During tightening, the locking block 10 on the nut 7 rotates accordingly. As the nut 7 rotates, the long inclined surface of the locking block 10 contacts the long inclined surface of the slot 12. It will not affect the rotation of the locking block 10. The locking block 10 pushes the fixing ring 11 to retract into the mounting groove 13. After the locking block 10 passes through a groove 12, the spring 14 pushes the fixing ring 11 back to the initial position. When the nut 7 is tightened, one end of the locking block 10 on the nut 7 locks into one end of the groove 12, thus fixing the nut 7 and making the nut 7 self-locking. This allows the nut 7 to stably fix the first sleeve 6 and the second sleeve 61, preventing the nut 7 from loosening. This fixture can fix the beam mold well and will not loosen.

[0022] Reference embodiment: Limiting grooves 17 are provided on both sides of the inner wall of the mounting groove 13, and limiting blocks 16 are provided on both sides of the fixing ring 11. The limiting blocks 16 provided on the fixing ring 11 cooperate with the limiting grooves 17, so that the fixing ring 11 can move horizontally in the mounting groove 13 but cannot rotate. The locking grooves 12 provided on the fixing ring 11 cooperate with the locking blocks 10 to fix the nut 7, so that the nut 7 will not loosen when it is fixed to the first sleeve 6 and the second sleeve 61.

[0023] Reference embodiment: The push rod 9 is fixedly connected to the fixing ring 11. The end of the push rod 9 adjacent to the right side of the through groove 8 is chamfered. The right end of the fixing ring 11 extends into the second sleeve 61. The right end of the fixing ring 11 and the second sleeve 61 are slidably connected. When disassembling this fixture, insert one end of a tool (such as a flathead screwdriver) into the middle of the side adjacent to the right end of the push rod 9 and the through groove 8, and push the push rod 9 to the left. The push rod 9 drives the fixing ring 11 to move to the left, so that the slot 12 provided on the fixing ring 9 is disengaged from the locking block 10, the fixing of the locking block 10 is released, and the nut 7 is removed.

[0024] Reference embodiment: The locking block 10 is set as a triangle, and the locking groove 12 cooperates with the locking block 10. During the rotation of the locking block 10 with the nut 7, the long inclined surface of the locking groove 12 contacts the long inclined surface of the locking block 10 without affecting the rotation of the locking block 10. When the nut 7 is tightened, the short right-angled side of the locking block 10 will lock the short right-angled side of the locking groove 12. After the nut 7 is tightened, it self-locks the nut 7 so that the nut 7 will not loosen.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for fixing beam formwork in building construction, comprising an installation rod (1), a left fixing plate (2), a right fixing plate (3), a thread (4), a first sleeve (6), and a nut (7), characterized in that: The mounting rod (1) has a thread (4) on its surface and a sliding groove (5) on both the upper and lower sides. The first sleeve (6) and the second sleeve (61) are mounted on the mounting rod (1). The nut (7) is mounted on the mounting rod (1) and is located on the right side of the second sleeve (61). The second sleeve (61) has a through groove (8) on its surface and a push rod (9) is provided in the through groove (8). The left side surface of the nut (7) has a locking block (10). The second sleeve (61) has an installation groove (13) on its surface and a spring (14) is provided in the installation groove (13). The right end of the spring (14) has a fixing ring (11) and the right end surface of the fixing ring (11) has a locking groove (12). The second sleeve (61) has a slider (15) inside its surface and the slider (15) cooperates with the sliding groove (5).

2. A fixture for fixing beam formwork in building construction according to claim 1, characterized in that: Limiting grooves (17) are provided on both sides of the inner wall of the mounting groove (13), and limiting blocks (16) are provided on both sides of the fixing ring (11).

3. A fixture for fixing beam formwork in building construction according to claim 1, characterized in that: The push rod (9) is fixedly connected to the fixing ring (11).

4. A fixture for fixing beam formwork in building construction according to claim 1, characterized in that: The right end of the fixing ring (11) extends into a second sleeve (61), and the fixing ring (11) and the right end of the second sleeve (61) are slidably connected.

5. A fixture for fixing beam formwork in building construction according to claim 1, characterized in that: The card block (10) is set as a triangle, and the card slot (12) cooperates with the card block (10).

Citation Information

Patent Citations

  • Novel beam formwork fixing clamp

    CN217501042U