A construction formwork fixing tie rod mechanism
By combining threaded rods with fixed plates and employing a sealing design, the problem of loosening in traditional tie rod devices is solved, thereby achieving stability and durability of the formwork system and improving construction accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陕西路桥集团有限公司
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional tie rod devices are prone to loosening during construction, which can cause formwork displacement and affect the quality of concrete structures and construction safety.
It adopts a combination structure of threaded rod and fixed plate, combined with Z-shaped end, sealing ring and multi-angle locking design. The template spacing can be adjusted by manual rotation, and the sealing ring is used to block the leakage path and block the contaminants. The connecting rod and threaded hole are locked at multiple angles to prevent loosening.
It effectively prevents threaded rods from loosening due to construction vibration or temperature changes, ensures the stability of the formwork system, blocks leakage and contaminant intrusion, improves construction accuracy and safety, and extends service life.
Smart Images
Figure CN224452261U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of road and bridge construction technology, and in particular to a construction formwork fixing tie rod mechanism. Background Technology
[0002] In various construction scenarios, formwork systems are crucial for concrete pouring and shaping. Their stability directly affects the precision and quality of the concrete structure's formation, as well as the safety during construction. Tie rods, as the core component of the formwork reinforcement system, apply balanced tension to both sides of the formwork through a bidirectional force-bearing mechanism. This precisely balances the lateral pressure generated during concrete pouring, stabilizing the formwork in its predetermined position and significantly enhancing the formwork system's resistance to deformation. Under conventional construction conditions, tie rods effectively constrain formwork displacement, ensuring that the geometric dimensions and shape of the concrete structure meet design standards.
[0003] Traditional tie rod devices typically employ a combination of threaded tubes and lead screws. One end of the lead screw rotates into a second threaded hole on one side of the threaded tube, shortening the distance between the lead screw and the threaded tube through rotation. This aims to fix the formwork while minimizing the overall redundant length of the tie rod. However, this traditional structure has a significant drawback: it is difficult to achieve stable fixation of the tie rods after construction. During long-term use, factors such as construction vibration, changes in ambient temperature, and the heat of concrete hydration can easily cause surface loosening of the tie rods, leading to formwork displacement and severely impacting the quality of the concrete structure and construction safety. Utility Model Content
[0004] This application provides a construction template fixing tie rod mechanism, which solves the problems mentioned in the background art.
[0005] This application provides a construction template fixing tie rod mechanism, including an adjustment component, a waterproof component, and a fixing component. The adjustment component includes a threaded rod and two fixing plates. The two ends of the threaded rod penetrate both sides of the template and fit against them. The two fixing plates are symmetrically installed on both sides of the threaded rod and fixedly connected to the corresponding template outer walls. One end of the threaded rod has a Z-shaped structure for manually rotating and adjusting the clamping distance between the two templates. The waterproof component includes two first sealing rings and two second sealing rings. The first sealing rings are fitted onto the outer wall of the threaded rod and press against the inner wall of the template to seal the leakage path of concrete slurry. The second sealing rings are fitted onto the outer wall of the threaded rod and press against the outer wall of the fixing plate to prevent external pollutants from entering. The fixing component includes multiple threaded holes formed on the surface of one of the fixing plates and a connecting rod penetrating the threaded rod. The connecting rod is inserted into the end slot of one end of the Z-shaped structure of the threaded rod and threadedly connected to the threaded hole to lock the rotational freedom of the threaded rod.
[0006] In one possible implementation, the adjusting assembly further includes a sleeve; the sleeve is fitted over the outer wall of the threaded rod and located between the two fixing plates to protect the surface of the threaded rod.
[0007] In one possible implementation, the adjustment assembly further includes a plurality of hollow tubes; the fixing plate has a plurality of placement slots along its height direction on the side facing the template; the placement slots match the hollow tubes and are used to clamp the template surface.
[0008] In one possible implementation, the adjustment assembly further includes a plurality of anti-slip pads disposed on the inner wall of the placement slot.
[0009] In one possible implementation, the anti-slip pad is made of rubber and has anti-slip textures on its surface.
[0010] In one possible implementation, the number of threaded holes is eight, which are distributed in an equidistant ring on the surface of the fixing plate for adapting to the multi-angle locking of the connecting rod.
[0011] In one possible implementation, the annular inner diameter of the first and second sealing rings is interference-fitted with the outer diameter of the threaded rod.
[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects:
[0013] This application utilizes a threaded rod that penetrates both sides of the formwork, with a fixing plate installed on the threaded rod. Utilizing the Z-shaped structure at the end of the threaded rod, construction workers can manually rotate it to adjust the formwork spacing, making operation simple and easy to control. Subsequently, the first sealing ring is pressed against the inner wall of the formwork to seal any potential concrete leakage; simultaneously, the second sealing ring is fitted against the outer wall of the fixing plate, effectively preventing the intrusion of external contaminants. Finally, the connecting rod is inserted into the slot at the end of the threaded rod and locked with the threaded hole on the fixing plate, thus completely fixing the rotational freedom of the threaded rod. The multi-angle locking design of the connecting rod and the threaded hole effectively prevents the threaded rod from loosening due to construction vibration or temperature changes, ensuring the stability of the formwork system during long-term use. The coordinated sealing design of the first and second sealing rings not only prevents the seepage of concrete slurry, avoiding material waste and structural defects, but also prevents the intrusion of external contaminants, significantly improving the durability of the structure. Furthermore, the adjustment method using the Z-shaped end and sleeve simplifies the control of the redundant length of the tie rod, improving construction accuracy and safety. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a structural schematic diagram of the construction template fixing tie rod mechanism provided in the embodiments of this application;
[0016] Figure 2 This is a schematic diagram of the structure of the fixing plate provided in an embodiment of this application;
[0017] Figure 3 This is a schematic diagram of the structure of the fixing component provided in the embodiments of this application;
[0018] Figure 4 This is a schematic diagram of the structure of the threaded rod provided in an embodiment of this application.
[0019] Icons: 1-Adjusting component; 101-Threaded rod; 102-Sleeve; 103-Fixing plate; 104-Placement groove; 105-Anti-slip pad; 2-Waterproof component; 201-First sealing ring; 202-Second sealing ring; 3-Fixing component; 301-Threaded hole; 302-Connecting rod. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of this application and for 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. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0022] This application provides a construction formwork fixing tie rod mechanism, such as... Figures 1 to 4 As shown. The construction template fixing tie rod mechanism includes an adjustment component 1, a waterproof component 2, and a fixing component 3. The adjustment component 1 includes a threaded rod 101 and two fixing plates 103. The two ends of the threaded rod 101 pass through and connect the two side templates. The two fixing plates 103 are symmetrically installed on both sides of the threaded rod 101 and fit against the corresponding template outer wall. One end of the threaded rod 101 has a Z-shaped structure for manually rotating and adjusting the clamping distance of the two side templates. The waterproof component 2 includes two first sealing rings 201 and two second sealing rings 202. The first sealing rings 201 are fitted onto the outer wall of the threaded rod 101 and press against the inner wall of the template to seal the concrete slurry leakage path. The second sealing rings 202 are fitted onto the outer wall of the threaded rod 101 and press against the outer wall of the fixing plate 103 to prevent external pollutants from entering. The fixing component 3 includes multiple threaded holes 301 formed on the surface of one of the fixing plates 103 and a connecting rod 302 passing through the threaded rod 101. The connecting rod 302 is threadedly connected to the threaded hole 301 by inserting into an end slot at one end of the Z-shaped structure of the threaded rod 101, thereby locking the rotational freedom of the threaded rod 101 and preventing the threaded rod 101 from loosening and rotating on its own after the template is fixed, thus avoiding the problem of unstable template fixing. In this application, the slot is set on one side of the Z-shaped structure away from the fixing plate 103. This setting fully considers the connection requirements between the connecting rod 302 and the threaded hole 301. By rationally planning the slot position, the connecting rod 302 can be connected to the threaded hole 301 more conveniently and efficiently, thereby ensuring a smoother assembly process for the entire device.
[0023] It should be noted that this application uses a threaded rod 101 that penetrates both sides of the template, and a fixing plate 103 is installed on the threaded rod 101. Utilizing the Z-shaped structure at the end of the threaded rod 101, construction workers can manually rotate it to adjust the template spacing, making operation simple and easy to control. Subsequently, the first sealing ring 201 is pressed against the inner wall of the template to seal any potential concrete leakage; simultaneously, the second sealing ring 202 is fitted against the outer wall of the fixing plate 103, effectively preventing the intrusion of external contaminants. Finally, the connecting rod 302 is inserted into the slot at the end of the threaded rod 101 and locked with the threaded hole 301 on the fixing plate 103, thereby completely fixing the rotational freedom of the threaded rod 101. The multi-angle locking design of the connecting rod 302 and the threaded hole 301 effectively prevents the threaded rod 101 from loosening due to construction vibration or temperature changes, ensuring the stability of the template system during long-term use. The coordinated sealing design of the first sealing ring 201 and the second sealing ring 202 effectively prevents the seepage of concrete grout, avoiding material waste and structural defects, while also preventing the intrusion of external contaminants, significantly improving the durability of the structure. Furthermore, the adjustment method using the Z-shaped end and sleeve 102 simplifies the control of the redundant length of the tie rod, improving construction accuracy and safety.
[0024] In this embodiment, the adjusting assembly 1 further includes a sleeve 102. The sleeve 102 is fitted onto the outer wall of the threaded rod 101 and is located between two fixing plates 103 to protect the surface of the threaded rod 101.
[0025] In this embodiment, the adjusting component 1 is provided with a sleeve 102 and sleeved on the outer wall of the threaded rod 101 and placed between two fixing plates 103. This design can effectively protect the surface of the threaded rod 101 and prevent the threaded rod 101 from being damaged by collisions, friction or environmental erosion with external objects during construction and use. This ensures the structural integrity and performance of the threaded rod 101, extends its service life, and maintains the stable operation of the overall function of the adjusting component 1, ensuring the stability of the template system.
[0026] In this embodiment, the adjustment component 1 further includes a plurality of hollow tubes. A plurality of placement slots 104 are provided along the height direction of the side of the fixing plate 103 facing the template. The placement slots 104 match the hollow tubes and are used to clamp the template surface.
[0027] In this embodiment of the application, the adjustment component 1 also includes a plurality of anti-slip pads 105 disposed on the inner wall of the placement groove 104.
[0028] In this embodiment, the anti-slip pad 105 is made of rubber and has anti-slip texture on its surface.
[0029] Specifically, the fixing plate 103 of this application is provided with an internal threaded groove corresponding to the threaded rod 101. Manually rotating the threaded rod 101 can drive the fixing plate 103 to move to the opposite side and place the hollow tube on the inner wall of the placement groove 104. The anti-slip pad 105 is used to adhere to the hollow tube to increase friction and prevent it from shaking. This not only further strengthens the clamping and fixing ability of the template surface, but also effectively prevents the template from shifting or deforming during concrete pouring, ensuring the forming quality of the concrete structure. At the same time, combined with the characteristic that the fixing plate 103 can move to the opposite side with the rotation of the threaded rod 101, the fit between the hollow tube and the template is tighter and the adjustment is more flexible, which improves the accuracy of template fixing and construction efficiency, and enhances the stability and reliability of the entire template system.
[0030] In this embodiment, there are eight threaded holes 301, which are distributed in a ring at equal intervals on the surface of the fixing plate 103. These holes are used to accommodate the multi-angle locking of the connecting rod 302. This design improves the flexibility and stability of the structure. The multi-angle locking method allows the connecting rod 302 to be inserted and tightened from different directions according to the actual construction conditions, flexibly adapting to complex and changing construction environments and installation requirements.
[0031] In this embodiment, the inner diameter of the first sealing ring 201 and the second sealing ring 202 is interference-fitted with the outer diameter of the threaded rod 101. This interference fit ensures a tight seal between the sealing ring and the threaded rod 101, forming a reliable sealing interface. This effectively prevents concrete slurry from leaking along the outer wall of the threaded rod 101 during pouring, avoiding structural defects and material waste caused by slurry leakage. Simultaneously, it prevents external dust, moisture, and other contaminants from intruding into the sealing area, reducing corrosion and wear on the threaded rod 101, extending the service life of the threaded rod 101 and the entire adjusting assembly 1, and ensuring the long-term stable sealing performance and structural reliability of the template system.
[0032] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0033] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.
Claims
1. A construction formwork fixed tie rod mechanism, characterised in that, It includes an adjustment component (1), a waterproof component (2), and a fixing component (3); The adjustment assembly (1) includes a threaded rod (101) and two fixing plates (103). The two ends of the threaded rod (101) pass through the two side templates and fit against the two side templates. The two fixing plates (103) are symmetrically installed on both sides of the threaded rod (101) and fixedly connected to the outer wall of the corresponding template. One end of the threaded rod (101) has a Z-shaped structure, which is used to manually rotate and adjust the clamping distance of the two side templates. The waterproof component (2) includes two first sealing rings (201) and two second sealing rings (202). The first sealing rings (201) are fitted onto the outer wall of the threaded rod (101) and press against the inner wall of the template to seal the leakage path of concrete slurry. The second sealing rings (202) are fitted onto the outer wall of the threaded rod (101) and press against the outer wall of the fixing plate (103) to prevent external pollutants from entering. The fixing component (3) includes a plurality of threaded holes (301) formed on the surface of one of the fixing plates (103) and a connecting rod (302) passing through the threaded rod (101). The connecting rod (302) is inserted into the end slot of one end of the Z-shaped structure of the threaded rod (101) and threadedly connected to the threaded hole (301) to lock the rotational degree of freedom of the threaded rod (101).
2. The formwork fixing twin pull rod mechanism according to claim 1, wherein, The adjustment assembly (1) also includes a sleeve (102); The sleeve (102) is fitted onto the outer wall of the threaded rod (101) and located between the two fixing plates (103) to protect the surface of the threaded rod (101).
3. The formwork fixing twin-stay rod mechanism according to claim 1, characterized by, The adjustment assembly (1) also includes a plurality of hollow tubes; The fixing plate (103) has multiple placement slots (104) along its height direction on the side facing the template; The placement groove (104) matches the hollow tube and is used to clamp the template surface.
4. The formwork fixing twin-stay rod mechanism according to claim 3, characterized by, The adjustment assembly (1) also includes a plurality of anti-slip pads (105) disposed on the inner wall of the placement groove (104).
5. The formwork fixing twin-stay rod mechanism according to claim 4, characterized by The anti-slip mat (105) is made of rubber and has anti-slip texture on its surface.
6. The construction formwork fixed pull rod mechanism of claim 1, wherein, The number of threaded holes (301) is eight, which are distributed in an equidistant ring on the surface of the fixing plate (103) for adapting to the multi-angle locking of the connecting rod (302).
7. The construction formwork fixing tie rod mechanism according to claim 1, characterized in that, The inner diameter of the first sealing ring (201) and the second sealing ring (202) are interference-fitted with the outer diameter of the threaded rod (101).