Mass concrete formwork
By combining the outer and inner formwork designs and utilizing a clamping mechanism and bolt slot structure, the problem of low adjustment efficiency of existing concrete formwork is solved, enabling rapid adjustment and improved sealing, thereby increasing the production efficiency of concrete slabs.
Patent Information
- Application Number
- CN202423172053.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing concrete formwork, due to the limitations of its fixed structure, requires adjustment of the dimensions of multiple inserts, resulting in low work efficiency and hindering the production of large batches of concrete slabs.
The structure includes an outer template and an inner template. The outer template is equipped with a clamping mechanism. The inner template can be slidably adjusted by a combination of a rotating rod, screw holes and ball bearings. The connection of bolts and slots ensures the sealing and adjustability of the template.
It enables rapid adjustment of the template, improves the efficiency of concrete slab pouring, reduces wear and leakage, and meets the needs of concrete slabs of different volumes.
Smart Images
Figure CN223548939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete formwork technology, specifically a large-volume concrete formwork. Background Technology
[0002] Concrete formwork refers to the formwork used to shape freshly poured concrete and the entire structural system supporting the formwork. There are various classification methods for formwork, including two types according to shape: flat formwork and curved formwork; and two types according to stress conditions: load-bearing formwork and non-load-bearing formwork.
[0003] Currently, existing concrete formwork requires adjusting the dimensions of multiple inserts during use due to the limitations of the fixed structure in order to pour concrete slabs of the required volume according to the building requirements. This method is inefficient and not conducive to the preparation and use of large quantities of concrete slabs. Utility Model Content
[0004] To address the problem of low efficiency in existing concrete formwork, this invention provides a large-volume concrete formwork.
[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0006] A large-volume concrete formwork includes an outer formwork and an inner formwork. The inner formwork is slidably connected to the inner formwork inside the outer formwork. The outer formwork has a clamping mechanism on the side near the inner formwork. The clamping mechanism includes a fixing plate. A screw hole is opened at the center of one side of the fixing plate. A rotating rod is threaded inside the screw hole. One end of the rotating rod passes through the screw hole and is connected to a pressure block. A plurality of spherical grooves are opened on one side of the pressure block. Ball bearings are rotatably connected inside the plurality of spherical grooves. One side of the ball bearings contacts the outer wall of the inner formwork. A handwheel is installed at the end of the rotating rod away from the pressure block.
[0007] Furthermore, the outer template includes a "U"-shaped plate, the outer wall of which is provided with a threaded hole, and a bolt is inserted and connected to the side of the fixing plate, with one end of the bolt engaging with the inside of the threaded hole.
[0008] The advantage of adopting the above-mentioned further solution is that the use of bolts makes it easy to fix the fixing plate to one side of the "U"-shaped plate 1001.
[0009] Furthermore, an opening is provided on one side of the bottom end of the "U"-shaped plate.
[0010] The advantage of adopting the above-mentioned further solution is that the opening provides space for the insertion of right-angled curved plates.
[0011] Furthermore, the inner template includes a right-angled curved plate, the bottom end of which is slidably connected to the inside of the opening.
[0012] The beneficial effect of adopting the above-mentioned further solution is that, by sliding the right-angle bent plate inside the opening, the right-angle bent plate can form an adjustable support structure at the bottom of the outer template.
[0013] Furthermore, the inner template includes a right-angled curved plate, the bottom end of which is slidably connected to the inside of the opening. The two sides of the right-angled curved plate are respectively provided with slots, and sealing strips are connected inside the two slots. The outer walls of the two sealing strips are respectively attached to the inner wall of the "U"-shaped plate.
[0014] The beneficial effect of adopting the above-mentioned further solution is that by fixing the sealing strip inside the slot, the sealing performance between the right-angle bent plate and the "U" shaped plate can be improved, which helps to reduce concrete leakage.
[0015] Furthermore, pulleys are installed at the four corners of the bottom surface of the right-angled plate.
[0016] The beneficial effect of adopting the above-mentioned further solution is that the movement of the right-angle curved plate is made more convenient through the installation and use of pulleys.
[0017] Furthermore, the top surface of the inner template is provided with a positioning component, which includes a flap and a rotating shaft. The flap is hinged to the inner template through the rotating shaft.
[0018] The beneficial effect of adopting the above-mentioned further solution is that, through the installation and use of the rotating shaft, the flap can be flipped on the top of the inner template, thereby facilitating the separation of the inner template and the outer template.
[0019] Furthermore, the top surface of the flip plate is provided with a hollow groove, and a slider is slidably connected inside the hollow groove. The top surface of the slider is provided with a through hole.
[0020] The beneficial effect of adopting the above-mentioned further solution is that the slider drives the perforation to slide inside the hollow groove, so that the position of the reinforcing bar inserted into the concrete can be adjusted.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] This type of large-volume concrete formwork, through the installation and use of a clamping mechanism, facilitates the adjustment of the concrete formwork to different dimensions, thereby making it easy to pour concrete slabs of different volumes. Specifically, by turning the handwheel, it drives the rotating rod to rotate, and with the threaded connection between the rotating rod and the screw hole, the rotating rod can push the pressure block to move until the ball bearing on one side of the pressure block contacts the inner formwork. The rotation of the ball bearing reduces the wear of the pressure block on the inner formwork during the rotation process. By pushing the inner formwork to slide inside the outer formwork, the cavity between the two can be adjusted to meet the required size of the concrete slab. Attached Figure Description
[0023] Figure 1 An assembly diagram of a large-volume concrete formwork provided by this utility model;
[0024] Figure 2 A schematic diagram of the outer formwork structure of a large-volume concrete formwork provided by this utility model;
[0025] Figure 3 A schematic diagram of the inner formwork structure of a large-volume concrete formwork provided by this utility model;
[0026] Figure 4 A schematic diagram showing the unfolded clamping mechanism of a large-volume concrete formwork provided by this utility model;
[0027] Figure 5 A schematic diagram of a positioning component for a large-volume concrete formwork provided by this utility model.
[0028] In the diagram: 100, outer template; 1001, "U" shaped plate; 1002, opening; 1003, threaded hole; 200, inner template; 2001, right-angle bent plate; 2002, slot; 2003, sealing strip; 2004, pulley; 300, clamping mechanism; 3001, fixing plate; 3002, rotating rod; 3003, handwheel; 3004, pressure block; 3005, ball bearing; 400, positioning assembly; 4001, flip plate; 4002, hollow groove; 4003, slider; 4004, perforation; 4005, rotating shaft. Detailed Implementation
[0029] 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.
[0030] Example 1
[0031] Please see Figures 1-5 This utility model provides a technical solution: a large-volume concrete formwork, including an outer formwork 100 and an inner formwork 200. The inner formwork 200 is slidably connected inside the outer formwork 100. A clamping mechanism 300 is provided on the side of the outer formwork 100 near the inner formwork 200. The clamping mechanism 300 includes a fixing plate 3001. A screw hole is opened at the center of one side of the fixing plate 3001. A rotating rod 3002 is threaded inside the screw hole. One end of the rotating rod 3002 passes through the screw hole and is connected to a pressure block 3004. A plurality of spherical grooves are opened on one side of the pressure block 3004. Ball bearings 3005 are rotatably connected inside the plurality of spherical grooves. One side of the ball bearings 3005 is connected to the inner formwork 200. The outer wall of the mold 200 is in contact with the mold 3002. A handwheel 3003 is installed at the end of the rotating rod 3002 away from the pressure block 3004. By rotating the handwheel 3003, the rotating rod 3002 is driven to rotate. The rotating rod 3002 is connected to the screw hole by a thread, so that the rotating rod 3002 can push the pressure block 3004 to move until the ball bearing 3005 on one side of the pressure block 3004 contacts the inner mold 200. The rotation of the ball bearing 3005 can reduce the wear of the inner mold 200 on the pressure block 3004 during the rotation process. By pushing the inner mold 200 to slide inside the outer mold 100, the cavity between the two is adjusted to meet the required size of the concrete slab.
[0032] 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.
[0033] Example 2
[0034] Please see Figures 1-5As an embodiment of this utility model, the outer template 100 further includes a U-shaped plate 1001. A threaded hole 1003 is provided on the outer side of the U-shaped plate 1001. A bolt is inserted and connected to the side of the fixing plate 3001, with one end of the bolt engaging with the inside of the threaded hole 1003. The bolt connection facilitates fixing the fixing plate 3001 to one side of the U-shaped plate 1001. An opening 1002 is provided on one side of the bottom end of the U-shaped plate 1001, providing space for the insertion of the right-angled curved plate 2001. The inner template 200 includes the right-angled curved plate 2001 and the right-angled curved plate 2002. The bottom end of 001 is slidably connected to the inside of the opening 1002. The right-angle bent plate 2001 slides inside the opening 1002, so that the right-angle bent plate 2001 can form an adjustable support structure at the bottom of the outer formwork 100. The two sides of the right-angle bent plate 2001 are respectively provided with slots 2002. The inside of the two slots 2002 is connected with sealing strips 2003. The outer walls of the two sealing strips 2003 are respectively attached to the inner walls of the "U" shaped plate 1001. By fixing the sealing strips 2003 inside the slots 2002, the sealing between the right-angle bent plate 2001 and the "U" shaped plate 1001 can be improved, which helps to reduce concrete leakage.
[0035] Example 3
[0036] Please see Figures 1-5 As one embodiment of this utility model, furthermore, pulleys 2004 are installed at the four corners of the bottom surface of the right-angle curved plate 2001. The installation and use of the pulleys 2004 makes the movement of the right-angle curved plate 2001 more convenient. A positioning component 400 is provided on the top surface of the inner template 200. The positioning component 400 includes a flap 4001 and a rotating shaft 4005. The flap 4001 is hinged to the inner template 200 via the rotating shaft 4005. The installation and use of the rotating shaft 4005... The flip plate 4001 can be flipped on top of the inner formwork 200, which facilitates the separation of the inner formwork 200 and the outer formwork 100. The top surface of the flip plate 4001 is provided with a hollow groove 4002, and a slider 4003 is slidably connected inside the hollow groove 4002. The top surface of the slider 4003 is provided with a through hole 4004. The slider 4003 drives the through hole 4004 to slide inside the hollow groove 4002, so that the position of the reinforcing steel inserted into the concrete can be adjusted.
[0037] Specifically, the working principle of this type of large-volume concrete formwork is as follows: First, check the structure of the concrete formwork for integrity. Only after confirming the structure is intact should it be used. This involves gripping and rotating the handwheel 3003, which drives the rotating rod 3002 to rotate. The threaded connection between the rotating rod 3002 and the screw hole allows the rotating rod 3002 to push the pressure block 3004 while rotating, until the ball bearing 3005 on one side of the pressure block 3004 contacts the inner formwork 200. The rotation of the ball bearing 3005 reduces wear on the inner formwork 200 during the rotation of the pressure block 3004. This pushes the inner formwork 200 to slide inside the outer formwork 100. Until the cavity between the two is adjusted to meet the required size of the concrete slab, an appropriate amount of concrete is poured in. Then, by flipping the flap 4001, one end of the flap 4001 is placed on top of the outer formwork 100. Then, by moving the slider 4003, the slider 4003 drives the through hole 4004 to slide inside the hollow groove 4002, so that the position of the reinforcing bar inserted into the concrete can be adjusted, and the corresponding reinforcing bar is inserted into the concrete through the through hole 4004. Secondly, by fixing the sealing strip 2003 inside the slot 2002, the sealing between the right angle plate 2001 and the "U" shaped plate 1001 can be improved, which helps to reduce concrete leakage.
Claims
1. A large-volume concrete formwork, characterized in that, The device includes an outer template (100) and an inner template (200). The inner template (200) is slidably connected to the inner template (100). The outer template (100) has a pressing mechanism (300) on one side near the inner template (200). The pressing mechanism (300) includes a fixing plate (3001). A screw hole is opened at the center of one side of the fixing plate (3001). A rotating rod (3002) is threaded inside the screw hole. One end of the rotating rod (3002) passes through the screw hole and is connected to a pressure block (3004). A plurality of spherical grooves are opened on one side of the pressure block (3004). A ball bearing (3005) is rotatably connected inside the plurality of spherical grooves. One side of the ball bearing (3005) contacts the outer wall of the inner template (200). A handwheel (3003) is installed at the end of the rotating rod (3002) away from the pressure block (3004).
2. The large-volume concrete formwork according to claim 1, characterized in that, The outer template (100) includes a "U"-shaped plate (1001), and the outer wall of the "U"-shaped plate (1001) is provided with a threaded hole (1003). The side of the fixing plate (3001) is connected with a bolt, and one end of the bolt engages with the inside of the threaded hole (1003).
3. A large-volume concrete formwork according to claim 2, characterized in that, An opening (1002) is provided on one side of the bottom end of the "U"-shaped plate (1001).
4. A large-volume concrete formwork according to claim 3, characterized in that, The inner template (200) includes a right-angled bent plate (2001), the bottom end of which is slidably connected to the inside of the opening (1002).
5. A large-volume concrete formwork according to claim 4, characterized in that, The right-angle bent plate (2001) has slots (2002) on both sides, and sealing strips (2003) are connected inside the two slots (2002). The outer walls of the two sealing strips (2003) are respectively attached to the inner wall of the "U" shaped plate (1001).
6. A large-volume concrete formwork according to claim 5, characterized in that, The right-angle curved plate (2001) has pulleys (2004) installed at the four corners of its bottom surface.
7. A large-volume concrete formwork according to claim 1, characterized in that, The top surface of the inner template (200) is provided with a positioning component (400), which includes a flap (4001) and a rotating shaft (4005). The flap (4001) is hinged to the inner template (200) through the rotating shaft (4005).
8. A large-volume concrete formwork according to claim 7, characterized in that, The top surface of the flip plate (4001) is provided with a hollow groove (4002), and a slider (4003) is slidably connected inside the hollow groove (4002). The top surface of the slider (4003) is provided with a through hole (4004).