Intercepting device for mass concrete construction joint
By designing an intercepting device for large-volume concrete construction joints, including support frames, oblique support, bottom horizontal support, support structure and wire mesh, the problems of unstable concrete sealing and poor molding quality are solved, and high-quality concrete forming and cost-reducing effect are achieved.
Patent Information
- Application Number
- CN202421856889.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The steel bars at the construction joints of large volume concrete are dense and the operating space is small, which makes it difficult to seal and fix concrete, and is prone to poor molding quality and leakage risks. It is difficult to chisel and clean the construction joints in the later stage.
An intercepting device including support frames, oblique support, bottom horizontal support, support structure and wire mesh is designed. Through the assembly and adjustment of these components, a skeleton suitable for different heights and lengths is formed, concrete outflow is stably intercepted, and stability is enhanced through wire mesh.
It improves the quality of concrete forming, reduces the risk of leakage, enhances the stability of the steel mesh, and the device is detachable and has a wide range of application, saving steel bar resources and reducing costs.
Smart Images
Figure CN222909427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mass concrete construction in buildings, and particularly relates to an intercepting device for a mass concrete construction joint. Background Technique
[0002] Mass concrete: refers to the large-volume concrete whose minimum geometric dimension of the concrete structure entity is not less than 1 m, or the concrete that is expected to cause harmful cracks due to the temperature change and shrinkage caused by the hydration of the cementitious materials in the concrete.
[0003] In recent years, super-long mass concrete structures are everywhere. Such concrete structures are mostly constructed by layered pouring and the skip-joint method, and often need to reserve multiple construction joints for construction. At present, the existing technology for mass concrete construction joints generally adopts the form of using quick-setting closing nets for plugging + steel bar supports for interception to intercept the post-cast strip concrete. However, the steel bars at the mass concrete construction joint part are dense, the operation space is small, it is difficult to fix and seal the concrete at the construction joint, and it is easy to have problems such as poor concrete forming quality, increased leakage risk, and great difficulty in chiseling and cleaning the construction joint in the later stage. Content of the Utility Model
[0004] In order to achieve the above-mentioned utility model purpose and solve the above technical problems, the utility model provides an intercepting device for a mass concrete construction joint.
[0005] The technical solution is as follows: it includes a support frame, diagonal supports, bottom horizontal supports, a retaining structure, and a wire mesh. There are multiple support frames, and adjacent support frames are connected to each other by bolts. There are multiple diagonal supports and bottom horizontal supports. One end of each diagonal support is rotatably connected to the support frame, and the other end of the diagonal support is connected to the retaining structure. The two ends of the bottom horizontal support are respectively connected to the support frame and the retaining structure. The diagonal supports and the bottom horizontal supports can both be adjusted in length. The retaining structure is fixed on the foundation slab, and the wire mesh is arranged on the side of the support frame away from the retaining structure.
[0006] Preferably, each support frame is composed of two upper and lower rectangular frames;
[0007] Each rectangular frame includes cross bars and vertical bars. There are two cross bars and two vertical bars. The two cross bars and vertical bars are fixedly connected end to end to form a rectangular frame. Matching first through holes are provided on the cross bars and vertical bars. Adjacent two rectangular frames and adjacent two support frames are connected by bolts passing through the first through holes. Fixed ear plates are provided on the support frame, and the support frame is connected to the fixed ear plates by bolts.
[0008] Preferably, the cross bar and the vertical bar are both square steel pipes. There are multiple first through holes on the cross bar and the vertical bar, and the fixed ear plates are arranged at the joints of the cross bar and the vertical bar.
[0009] Preferably, the diagonal support includes a first diagonal brace and a second diagonal brace. Matching second through holes are provided on the side walls of the first diagonal brace and the second diagonal brace, and the first diagonal brace and the second diagonal brace are connected by bolts passing through the second through holes.
[0010] Preferably, the first diagonal brace (201) and the second diagonal brace (202) are both square steel pipes. There are multiple second through holes (203) on the first diagonal brace (201) and the second diagonal brace (202), and the first diagonal brace (201) and the second diagonal brace (202) are sleeved.
[0011] Preferably, the retaining structure includes a first fixing block, two second fixing blocks, a long bolt, a sliding ear plate, and a sliding rod. The two second fixing blocks are respectively fixed at both ends of one side of the first fixing block. Both ends of the sliding rod are fixed on the two fixing blocks. There are multiple sliding ear plates, and the sliding ear plates are slidably sleeved on the sliding rod. Each sliding ear plate is connected to the diagonal support by bolts, and the long bolt passes through the first fixing block and is connected to the foundation bottom plate.
[0012] Preferably, the bottom horizontal support is composed of a sleeved first horizontal support and a second horizontal support. The first horizontal support and the second horizontal support are both made of square steel pipes. Matching third through holes are provided on the side walls of the first horizontal support and the second horizontal support, and the first horizontal support and the second horizontal support are connected by bolts passing through the third through holes;
[0013] One end of the first horizontal support is connected to the fixed ear plate of the support frame by bolts. The other end of the first horizontal support is connected to one end of the second horizontal support, and the other end of the second horizontal support abuts against the retaining structure
[0014] Preferably, the wire mesh is tied to the support frame by binding wires.
[0015] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are:
[0016] 1. By setting diagonal braces, support frames, retaining structures, and wire meshes, the problems of unstable sealing of concrete during pouring at traditional construction joints, concrete flowing out, poor forming quality of concrete, and pollution of steel bars are solved. The stability of the steel bar mesh is improved, the forming quality of concrete is improved, there is basically no honeycombing and pockmarking on the surface, and the leakage risk is reduced.
[0017] 2. The supporting frame is an independent unit. By assembling the supporting frame and matching it with corresponding diagonal braces and retaining structures, skeletons of different heights and lengths can be formed, with a wide range of applications. Moreover, after the concrete is poured and reaches the form removal strength, it can be disassembled, with high recyclability, saving a large amount of resources such as steel bars and reducing costs. Brief Description of the Drawings
[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0019] Figure 2 It is a front view of the overall structure of an embodiment of the present utility model.
[0020] Figure 3 It is a schematic diagram of the structure of the retaining structure of an embodiment of the present utility model.
[0021] Figure 4 It is a schematic diagram of the structure of the supporting frame of an embodiment of the present utility model.
[0022] Among them, the reference numerals are: 1, supporting frame; 101, vertical rod; 102, horizontal rod; 103, first through hole; 104, fixed ear plate; 2, diagonal support; 201, first diagonal brace; 202, second diagonal brace; 203, second through hole; 3, retaining structure; 301, first fixing block; 302, second fixing block; 303, long bolt; 304, sliding ear plate; 305, sliding rod; 4, wire mesh; 5, foundation floor slab. Detailed Description of the Preferred Embodiments
[0023] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model.
[0024] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.
[0025] In the description of the creation of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the creation of the present 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. Therefore, it should not be construed as a limitation on the creation of the present 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the creation of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.
[0026] In the description of the creation of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present utility model can be understood through specific circumstances.
[0027] Embodiment
[0028] See Figures 1 to 4 , the present utility model provides an interception device for a large-volume concrete construction joint, including a support frame 1, an inclined support 2, a bottom horizontal support 6, a retaining structure 3, and a wire mesh 4. A plurality of the support frames 1 are provided, and each of the support frames 1 is connected to each other by bolts. A plurality of the inclined supports 2 and the bottom horizontal supports 6 are provided. One end of each of the inclined supports 2 is rotatably connected to the support frame 1, and the other end of each of the inclined supports 2 is connected to the retaining structure 3 in contact. Both ends of the bottom horizontal support 6 are respectively connected to the support frame 1 and the retaining structure 3. The lengths of the inclined support 2 and the bottom horizontal support 6 can both be adjusted. The retaining structure 3 is fixed on the foundation slab 5, and the wire mesh 4 is arranged on one side of the support frame away from the retaining structure 3.
[0029] The support frame 1 includes a horizontal bar 102 and a vertical bar 101. The horizontal bar 102 and the vertical bar 101 are each provided with two, and the two horizontal bars 102 and the vertical bar 101 are fixedly connected end to end to form a square frame. The horizontal bar 102 and the vertical bar 101 are each provided with a first through hole 103. Each of the support frames is connected by bolts passing through the first through hole 103. A fixed ear plate 104 is provided on the support frame 1, and the support frame 1 is connected to the fixed ear plate 104 by bolts. The support frame uses a finished aluminum alloy 20×20×2 welded skeleton support, and the spacing between the stand pipes is 2000mm. Ears are welded on both sides of the intersection area. The ear plate is 20×20×2, and the center opening is 11mm. It is later connected and fixed to the support structure by bolts M10×45.
[0030] The cross bar 102 and the vertical bar 101 are both square steel pipes. A plurality of first through holes are provided on the cross bar 102 and the vertical bar 101 . The fixing ear plate 104 is provided at the connection between the cross bar 102 and the vertical bar 101 .
[0031] The oblique support 2 includes a first oblique support 201 and a second oblique support 202 . The first oblique support 201 and the second oblique support 202 are both provided with a second through hole 203 . The first oblique support 201 and the second oblique support 202 are connected with each other by bolts passing through the second through holes 203 .
[0032] The first diagonal brace 201 and the second diagonal brace 202 are both square steel pipes, and the first diagonal brace 201 and the second diagonal brace 202 are both provided with a plurality of second through holes 203, and the first diagonal brace 201 and the second diagonal brace 202 are sleeved. The first and second diagonal braces are cut and opened by finished aluminum alloy steel pipes 20×20×2, and the upper diagonal support upper openings are connected and fixed with the steel frame skeleton at the position of the hanging ears by bolts, and the bottom feet are in contact with the ground for support to maintain the stability of the interception device of the steel frame skeleton during concrete pouring, and the hanging ear plates on the frame are connected with the retaining structure by bolts, and the length of the lower retaining structure is adjusted through the connecting holes according to the concrete height to stabilize the combined mesh, prevent the concrete construction from being blocked unstably, causing the concrete to flow out, and resulting in poor concrete molding quality.
[0033] When the concrete height of the construction joint is too high, the length of the upper supporting structure is not enough to contact the supporting surface. Connecting holes are opened at the lower part of the upper structure, and connecting holes are opened at intervals of 100mm in the upper area of the lower structure. The holes are connected and fixed with bolts to better adjust the support length to ensure the appropriate support length against the supporting surface.
[0034] The retaining structure 3 includes a first fixing block 301, two second fixing blocks 302, a long bolt 303, a sliding ear plate 304, and a sliding rod 305. The two second fixing blocks 302 are respectively fixed at both ends of the first fixing block. Both ends of the sliding rod 305 are fixed on the two fixing blocks 302. A plurality of sliding ear plates 304 are provided. The sliding ear plates 304 are slidably sleeved on the sliding rod. Each sliding ear plate 304 is connected to the diagonal support 2 by a bolt. The long bolt 303 passes through the first fixing block and is connected to the foundation bottom plate 5.
[0035] The bottom horizontal support 6 is composed of a sleeved first horizontal support and a second horizontal support. Both the first horizontal support and the second horizontal support are made of square steel pipes. Third through holes that match each other are provided on the side walls of the first horizontal support and the second horizontal support. The first horizontal support and the second horizontal support are connected by bolts passing through the third through holes.
[0036] One end of the first horizontal support is connected to the fixing ear plate 104 of the support frame 1 by a bolt. The other end of the first horizontal support is connected to one end of the second horizontal support. The other end of the second horizontal support abuts against the retaining structure 3.
[0037] The wire mesh 4 is tied to the support frame 1 by binding wires. At the construction joint, a wire mesh is used, and a quick-setting closing net is fully arranged along the height direction at the inner side position and is tied and fixed to the aluminum frame by binding wires.
[0038] When the present utility model is in use, first, according to the length and width of the construction joint of the mass concrete, it is obtained how many support frames 1 need to be assembled. Then, the bottom row of support frames 1 is first erected and fixedly connected by bolts. The retaining structure 3 is fixed on the foundation bottom plate 5 and fixed well with the long bolt 303. The length of the bottom horizontal support 6 is adjusted to abut against the retaining structure 3. Then, the upper row of support frames 1 is erected in sequence, and the support frames are fixed together by bolts. Then, the length of the diagonal support 2 is adjusted. One end is connected to the fixing ear plate 104 on the support frame by a bolt. The position of the sliding ear plate 304 on the sliding rod 305 is adjusted, and the other end of the diagonal support 2 is connected to the sliding ear plate 304. In addition, the number of diagonal supports 2 can be increased correspondingly according to actual needs to improve stability.
[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An interception device for large-volume concrete construction joints, characterized in that: The invention comprises a supporting frame (1), an oblique support (2), a bottom horizontal support (6), a retaining structure (3), and a wire mesh (4); the supporting frame (1) is provided with a plurality of them, and adjacent supporting frames (1) are connected to each other by bolts; the oblique support (2) and the bottom horizontal support (6) are provided with a plurality of them, one end of each oblique support (2) is rotatably connected to the supporting frame (1), and the other end of the oblique support (2) is connected to the retaining structure (3); the two ends of the bottom horizontal support (6) are respectively connected to the supporting frame (1) and the retaining structure (3); the oblique support (2) and the bottom horizontal support (6) are both adjustable in length; the retaining structure (3) is fixed on a base bottom plate (5); and the wire mesh (4) is arranged on a side of the supporting frame (1) away from the retaining structure (3).
2. The interception device for mass concrete construction joints according to claim 1, characterized in that: The supporting frame (1) is composed of two upper and lower rectangular frames; Each rectangular frame comprises a horizontal bar (102) and a vertical bar (101), two of the horizontal bars (102) and two of the vertical bars (101) are provided, and the two horizontal bars (102) and the vertical bars (101) are fixedly connected end to end to form a rectangular frame, and the horizontal bars (102) and the vertical bars (101) are provided with matching first through holes (103), and two adjacent rectangular frames and two adjacent supporting frames (1) are connected by bolts passing through the first through holes (103), and the supporting frames (1) are provided with fixing ear plates (104), and the supporting frames (1) are connected to the fixing ear plates (104) by bolts.
3. An interception device for a large volume concrete construction joint according to claim 2, characterized in that: The cross bar (102) and the vertical bar (101) are both square steel tubes, a plurality of first through holes (103) are provided on the cross bar (102) and the vertical bar (101), and the fixing ear plate (104) is provided at the connection between the cross bar (102) and the vertical bar (101).
4. The interception device for mass concrete construction joints according to claim 2, characterized in that: The oblique support (2) comprises a first oblique support (201) and a second oblique support (202); the side walls of the first oblique support (201) and the second oblique support (202) are both provided with matching second through holes (203); the first oblique support (201) and the second oblique support (202) are connected by bolts passing through the second through holes (203).
5. The interception device for mass concrete construction joints according to claim 4, characterized in that: The first diagonal brace (201) and the second diagonal brace (202) are both square steel pipes, a plurality of second through holes (203) are provided on the first diagonal brace (201) and the second diagonal brace (202), and the first diagonal brace (201) and the second diagonal brace (202) are sleeved.
6. The interception device for mass concrete construction joints according to claim 1, characterized in that: The retaining structure (3) comprises a first fixed block (301), two second fixed blocks (302), a long bolt (303), a sliding ear plate (304), and a sliding rod (305). The two second fixed blocks (302) are respectively fixed at two ends of one side of the first fixed block (301), and the two ends of the sliding rod (305) are respectively fixed to the two fixed blocks (302). A plurality of sliding ear plates (304) are provided, and the sliding ear plates (304) are slidably sleeved on the sliding rod (305). Each sliding ear plate (304) is connected to the oblique support (2) by bolts, and the long bolts (303) pass through the first fixed block (301) and are connected to the base bottom plate (5).
7. The interception device for mass concrete construction joints according to claim 5, characterized in that: The bottom horizontal support (6) is composed of a first horizontal support and a second horizontal support which are sleeved together, the first horizontal support and the second horizontal support are both made of square steel pipes, the side walls of the first horizontal support and the second horizontal support are both provided with matching third through holes, and the first horizontal support and the second horizontal support are connected by bolts passing through the third through holes; One end of the first horizontal support is connected to the fixed ear plate (104) of the support frame (1) by means of bolts, the other end of the first horizontal support is connected to one end of the second horizontal support, and the other end of the second horizontal support abuts against the supporting structure (3).
8. The interception device for mass concrete construction joints according to claim 1, characterized in that: The steel wire mesh (4) is tied to the supporting frame (1) by means of tying wires.