Device for reducing abutted seams of fair-faced concrete formworks
By designing a device for clean water concrete formwork joints, using components such as central shaft screws and unidirectional rotating bearings, the automatic tight adjustment of formwork joints is achieved, which solves the problem of difficult joints in the prior art, and improves construction quality and efficiency.
Patent Information
- Application Number
- CN202421831502.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The joint processing of existing clean water concrete formwork relies on manual operations, which makes the joint difficult to control, affecting the quality and appearance of concrete forming, and requires additional auxiliary materials and processes, which increases costs and construction cycle.
A device including a central shaft screw, a one-way rotating bearing and a limiting mechanism is designed. By adjusting the nut and rotating handle, the automatic tight adjustment of the template joint is realized, reducing the dependence of manual operation.
It effectively reduces the formwork joints, improves the flatness of the concrete forming surface, reduces material losses and construction cycles, and improves construction efficiency and quality.
Smart Images
Figure CN222893977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary equipment for assembling a plain concrete formwork, in particular to a device for reducing the joints of a plain concrete formwork. Background Art
[0002] As a manifestation of architectural aesthetics, the technical development of fair-faced concrete has evolved from the initial simple pouring to modern refined construction. Since the rise of fair-faced concrete technology in Europe in the early 20th century, it has gradually become an indispensable element in modern architecture with its unique texture and color. With the advancement of construction technology, the construction process of fair-faced concrete has been continuously improved. From the selection of formwork, the proportion of concrete to the pouring technology, every link has undergone significant technological innovation. Especially in terms of formwork technology, in order to achieve the natural texture and texture of fair-faced concrete, the design and manufacturing process of the formwork has reached a fairly high level. However, despite this, the problem of formwork joints in the construction process of fair-faced concrete is still a key factor restricting construction quality and efficiency.
[0003] In the prior art, the joint processing of the plain concrete formwork mainly relies on manual operation, including the alignment, fixation and sealing of the formwork. In this process, the flatness of the formwork and the tightness of the joints largely depend on the experience and technical level of the operators, which not only increases the uncertainty of construction, but also limits the construction efficiency. Especially in the construction of large-sized or complex-shaped formwork, the existing technical means are difficult to ensure the consistency and stability of the formwork joints, which leads to easy leakage of slurry during concrete pouring, affecting the molding quality and appearance of the concrete. In addition, the processing of formwork joints in the prior art often requires additional auxiliary materials and processes, such as the use of sponge strips, which not only increases the material cost, but also prolongs the construction period.
[0004] How to solve the above problems is the research topic of this program. Utility Model Content
[0005] In order to achieve the above-mentioned purpose of the utility model and to address the above-mentioned technical problems, the utility model provides a device for reducing the joints of fair-faced concrete formwork, which solves the technical problem that the joints of existing fair-faced formwork are difficult to control during assembly, thereby affecting the forming effect of fair-faced concrete.
[0006] The technical solution is as follows: it comprises a central axis screw, a one-way rotating bearing arranged in the middle of the central axis screw and a limiting mechanism arranged at both ends of the central axis screw, a rotating handle is arranged on the outer wall of the one-way rotating bearing, and the limiting mechanism comprises two nuts, an insert rod and a diagonal support rod;
[0007] The bottom end of the insertion rod matches with the tension screw hole on the template, and the insertion rods of the two limiting mechanisms correspond to two adjacent templates respectively.
[0008] The threads on the outer walls of the central axis screw at both ends of the one-way rotating bearing have opposite directions.
[0009] The rotating handle is connected to the central axis screw rod through a one-way rotating bearing, ensuring that the central axis screw rod will not be driven to rotate when the rotating handle is rotated to one side, but can be driven to rotate when the rotating handle is rotated to the other side.
[0010] The two nuts are both threadedly connected to the outer wall of the central shaft screw.
[0011] The bottom end of one of the nuts is fixedly connected to the top of the insertion rod, the bottom end of the other nut is fixedly connected to the top of the diagonal support rod, and the bottom of the diagonal support rod is fixedly connected to the middle of the outer wall of the insertion rod;
[0012] A triangular structure is formed between the diagonal support rod, the insertion rod and the central axis screw rod, and the triangular form is adopted to ensure the stability of the insertion rod fixation.
[0013] After the two templates are brought close together, the joints are fixed using fixed iron plates with holes at both ends and nails.
[0014] The nominal diameter of the central axis screw is 22 mm and the length is 1 m.
[0015] By adjusting the nuts, insert the bottom ends of the rods at both ends into the tension screw holes on the template, and repeatedly rotate the one-way rotating bearing by turning the handle to make the rods at both ends of the central axis screw move closer to the middle, so as to achieve the effect of fixing the template and reducing the template joints.
[0016] The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:
[0017] (1) The distance between the two ends of the central axis screw can be adjusted, and all the clear water formworks designed for the tension screw within 1m can be assembled, allowing the device to be reused, saving costs;
[0018] (2) By rotating the central axis screw, the two end rods move toward the middle, thereby driving the template, making the template joints tighter, ensuring the flatness of the template molding surface, avoiding slurry leakage, reducing material loss, and improving construction efficiency and quality;
[0019] (3) The design of the device makes template splicing easier, reduces the need for other auxiliary materials during construction, such as sponge strips, and is convenient for obtaining materials, saving material costs;
[0020] (4) The device also has the function of fixing the template, which makes it convenient for workers to use tools to fix the template and can increase process efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1It is a schematic diagram of the overall structure of an embodiment of the utility model.
[0022] Figure 2 It is a structural schematic diagram of the limiting mechanism of an embodiment of the utility model.
[0023] Figure 3 This is a schematic diagram of the structure of fixing two templates by fixing iron sheets and nails in an embodiment of the utility model.
[0024] Among them, the figure markings are: 1, central axis screw; 2, one-way rotating bearing; 3, limiting mechanism; 201, rotating handle; 301, nut; 302, insert rod; 303, diagonal support rod; 4, template; 401, tension screw hole; 5, fixing iron sheet. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0027] In the description of the invention of the present utility model, 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model 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 cannot be understood as a limitation on the invention of the utility model. 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 technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.
[0028] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.
[0029] Example 1
[0030] See also Figures 1 to 3 The utility model provides a device for reducing the joint of a clear water concrete formwork, comprising a central axis screw 1, a one-way rotating bearing 2 arranged in the middle of the central axis screw 1, and a limiting mechanism 3 arranged at both ends of the central axis screw 1, a rotating handle 201 is arranged on the outer wall of the one-way rotating bearing 2, and the limiting mechanism 3 comprises two nuts 301, an insert rod 302 and a diagonal support rod 303;
[0031] The bottom end of the insertion rod 302 matches with the tension screw hole 401 on the template 4, and the insertion rods 302 of the two limiting mechanisms 3 correspond to two adjacent templates 4 respectively.
[0032] The threads on the outer wall of the central axis screw rod 1 at both ends of the one-way rotating bearing 2 have opposite directions.
[0033] The rotating handle 201 is connected to the central axis screw 1 through a one-way rotating bearing 2, ensuring that the central axis screw is not driven to rotate when the rotating handle is rotated to one side, and can be driven to rotate when the rotating handle is rotated to the other side.
[0034] The two nuts 301 are both threadedly connected to the outer wall of the central shaft screw rod 1 .
[0035] The bottom end of one nut 301 is fixedly connected to the top of the insertion rod 302, the bottom end of the other nut 301 is fixedly connected to the top of the diagonal support rod 303, and the bottom of the diagonal support rod 303 is fixedly connected to the middle of the outer wall of the insertion rod 302;
[0036] A triangular structure is formed between the diagonal support rod 303, the insertion rod 302 and the central axis screw rod 1, and the triangular form is adopted to ensure the stability of the insertion rod fixation.
[0037] After the two templates 4 are brought close together, the joints are fixed by fixing iron sheets 5 with holes at both ends and nails.
[0038] The center screw 1 has a nominal diameter of 22 mm and a length of 1 m.
[0039] By adjusting the nut 301, the bottom ends of the rods 302 at both ends are inserted into the tension screw holes 401 on the template 4. By turning the handle 201 to repeatedly rotate the one-way rotating bearing 2, the rods 302 at both ends of the central axis screw 1 are moved closer to the middle, thereby achieving the effect of fixing the template and reducing the template joints.
[0040] When in use, the one-way rotating bearing 2 is welded in the middle of the central axis screw 1 with a nominal diameter of 22mm and a length of 1m, and a rotating handle 201 for rotating the bearing is welded on the outer wall of the one-way rotating bearing 2. A nut 301 matching the central axis screw 1 is selected, and the insert rod 302 is welded to the nut 301, and the insert rod 302 is screwed to both ends of the central axis screw 1;
[0041] 2 Adjust the distance between the plugs at both ends, insert the plug rods 302 at both ends into the tension screw holes 401 of the two templates, repeatedly rotate the middle one-way rotating bearing 2 to move the plug rod 302 toward the middle and drive the template 4, so that the template 4 is spliced more tightly until the template joints meet the requirements; after the template 4 is squeezed tightly, the two templates 4 are fixed together by the fixing iron sheets 5 with holes at both ends and nails.
[0042] When the utility model is used, the following steps are included:
[0043] Manufacturing device: First, the one-way rotating bearing 2 needs to be welded to the middle part of the central axis screw 1, the nominal diameter of the central axis screw 1 is 22mm and the length is 1m. Then a rotating handle 201 for rotation is welded on the one-way rotating bearing 2. Next, a nut 301 matching the central axis screw 1 is selected, and the insert rod 302 is welded to the nut 301, and finally the insert rod 302 is screwed to both ends of the central axis screw 1.
[0044] Adjust the distance between the rods: When in use, first adjust the distance between the rods 302 at both ends so that they can fit and be inserted into the tension screw holes 401 of the two templates. This step is to ensure that the device can adapt to templates of different sizes.
[0045] Rotate the one-way rotating bearing: After inserting the two end rods 302 into the tension screw holes 401 of the template, repeatedly rotate the middle one-way rotating bearing 2. This action will cause the two end rods 302 to move toward the middle, thereby driving the template to be squeezed inward, making the template joints tighter. This step is the key link to reduce the template joint seam.
[0046] Fixing the template: When the template reaches the required joint tightness through the adjustment of the device, the template is fixed together with the fixing iron sheet 5 and nails to keep the template stable and the joint tight.
[0047] Inspection and adjustment: After fixing the formwork, the joints of the formwork should be checked to ensure there is no risk of leakage, and further adjustments should be made as needed.
[0048] Through the above steps, the device can effectively reduce the joints of the fair-faced concrete template and improve the flatness of the concrete forming surface, thereby improving the construction quality and appearance of the fair-faced concrete.
[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for reducing the joints of a plain concrete formwork, characterized in that: It comprises a central axis screw rod (1), a one-way rotating bearing (2) arranged in the middle of the central axis screw rod (1), and a limiting mechanism (3) arranged at both ends of the central axis screw rod (1), wherein a rotating handle (201) is arranged on the outer wall of the one-way rotating bearing (2), and the limiting mechanism (3) comprises two nuts (301), an insert rod (302), and a diagonal support rod (303); The bottom end of the insertion rod (302) matches the tension screw hole (401) on the template (4), and the insertion rods (302) of the two limiting mechanisms (3) correspond to two adjacent templates (4) respectively.
2. The device for reducing the joints of the bare concrete formwork according to claim 1 is characterized in that: The threads on the outer walls of the central axis screw rod (1) at both ends of the one-way rotating bearing (2) have opposite directions.
3. The device for reducing the joints of the plain concrete formwork according to claim 2 is characterized in that: The rotating handle (201) is connected to the central axis screw (1) via a one-way rotating bearing (2).
4. The device for reducing the joints of the plain concrete formwork according to claim 3 is characterized in that: The two nuts (301) are both threadedly connected to the outer wall of the central axis screw rod (1).
5. The device for reducing the joints of the plain concrete formwork according to claim 4 is characterized in that: The bottom end of one of the nuts (301) is fixedly connected to the top of the insertion rod (302), the bottom end of the other nut (301) is fixedly connected to the top of the diagonal support rod (303), and the bottom of the diagonal support rod (303) is fixedly connected to the middle of the outer wall of the insertion rod (302); A triangular structure is formed between the diagonal support rod (303), the insertion rod (302) and the central axis screw rod (1).
6. The device for reducing the joints of the plain concrete formwork according to claim 5 is characterized in that: After the two templates (4) are brought close together, the joints are fixed by means of fixing iron sheets (5) with holes at both ends and nails.
7. The device for reducing the joints of the bare concrete formwork according to claim 1 is characterized in that: The central axis screw (1) has a nominal diameter of 22 mm and a length of 1 m.