Assembled split heads for concrete pouring

The detachable design of the trestles, which uses corner connectors, insertion holes, and protrusions to form a rectangular frame, solves the problems of large size and inflexible use of existing trestles, and achieves efficient disassembly and transportation, making construction convenient.

CN223937718UActive Publication Date: 2026-02-24CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202520102988.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-02-24
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Existing trestles are bulky and inflexible in use, making it difficult to meet the needs of convenient construction.

Method used

Adopting a detachable design, the combination of corner connectors, first horizontal bar, load-bearing steel wire mesh, second horizontal bar and vertical support bar, and the use of plug holes and plug protrusions enables quick assembly and disassembly to form a rectangular frame structure. The load-bearing steel wire mesh is installed by bolt connection.

Benefits of technology

It improves the ease of disassembly, assembly, and transportation of the trestles, enhances structural stability and load-bearing capacity, adapts to different construction needs, and extends service life.

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Abstract

The utility model discloses an assembled split heads for concrete pouring. The split heads comprise side frame assemblies, first horizontal rods and a load-bearing steel wire mesh, the first horizontal rods are detachably and horizontally connected between the pair of side frame assemblies, and the pair of first horizontal rods are symmetrically arranged on the two sides of the tops of the side frame assemblies to form a horse stool main body; bolt holes are formed in the tops of the pair of side frame assemblies and the pair of first horizontal rods, and the load-bearing steel wire mesh is detachably laid on the top surface of the horse stool main body through bolts via the bolt holes. The utility model relates to the technical field of building construction, and can solve the problems that a horse stool in the prior art is large in size and inconvenient and inflexible to use.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a saddle that can be assembled for concrete pouring. Background Technology

[0002] A trestle is a construction tool called a "horse trestle" because of its horse-like shape. During on-site construction in civil engineering, trestles are often placed along the concrete pouring path before pouring concrete to protect the finished reinforcing steel bars. This allows construction workers to pour concrete from the trestles, thus protecting the finished reinforcing steel bars from damage.

[0003] Chinese utility model patent CN220768792U discloses a stool, including a stool board. The upper surface of the stool board has a sliding groove, and two extension plates are slidably connected to the sliding groove. A lifting module is fixedly installed on the upper surface of the extension plates. A storage tray is fixedly connected to the upper end of the lifting module. Four support legs are welded to the lower surface of the stool board. Telescopic legs are slidably connected to the inner wall of the support legs. The support legs and telescopic legs have several positioning holes, and positioning pins are engaged in the positioning holes.

[0004] The existing concrete saddle is welded to the support legs, resulting in a large size that is inconvenient for on-site handling and has poor flexibility in use. Therefore, there is a need for a modular concrete saddle that can solve the problems of large size, inconvenience, and inflexibility in the existing technology. Summary of the Invention

[0005] The purpose of this utility model is to provide a modular concrete pouring trestle that can solve the problems of large size, inconvenience and inflexibility of existing trestles.

[0006] This utility model is implemented as follows:

[0007] A saddle for concrete pouring that can be assembled includes side frame components, first horizontal bars, and load-bearing steel wire mesh. The first horizontal bars are detachably and horizontally connected between a pair of side frame components. The pair of first horizontal bars are symmetrically arranged on both sides of the top of the side frame components to form the main body of the saddle. Bolt holes are formed on the top of the pair of side frame components and the pair of first horizontal bars. The load-bearing steel wire mesh is detachably laid on the top surface of the main body of the saddle through the bolt holes.

[0008] Each set of side frame assemblies includes a pair of vertical support rods, a second horizontal rod, and a pair of corner connectors; the upper end of the vertical support rod is detachably inserted into the bottom of the corner connector, the two ends of the second horizontal rod are detachably inserted into the top of the pair of corner connectors respectively, and the first horizontal rod is detachably inserted into the top of the corner connectors on the same side of the pair of side frame assemblies; the second horizontal rod is perpendicular to the first horizontal rod, so that the pair of first horizontal rods and the pair of second horizontal rods of the side frame assemblies enclose a rectangular frame structure; bolt holes are formed at intervals on the top of the second horizontal rod and the corner connector.

[0009] The corner connector has a first insertion part at its bottom, and an insertion hole at the bottom of the first insertion part. The vertical support rod has an insertion protrusion at its top. The insertion protrusion is fitted into the insertion hole, so that the vertical support rod can be detachably and vertically inserted into the bottom of the corner connector.

[0010] The corner connector has a second insertion part formed laterally at its top, and an insertion hole is formed at the end of the second insertion part away from the corner connector. An insertion protrusion is formed at the end of the second horizontal rod. The insertion protrusion is matched and inserted into the insertion hole, so that the second horizontal rod is laterally inserted between the tops of a pair of corner connectors.

[0011] The corner connector has a third insertion portion formed longitudinally at its top, and an insertion hole is formed at the end of the third insertion portion away from the corner connector. An insertion protrusion is formed at the end of the first horizontal bar. The insertion protrusion is matched and inserted into the insertion hole, so that the first horizontal bar is longitudinally inserted between the tops of the corner connectors of a pair of side frame assemblies and perpendicular to the second horizontal bar.

[0012] The first, second, and third connectors are arranged perpendicularly to each other along their axes.

[0013] The two vertical support rods are provided with insertion holes on their opposite surfaces, and the end of the third horizontal rod is provided with an insertion protrusion. The insertion protrusion is fitted into the insertion hole, so that the third horizontal rod can be detachably and horizontally inserted between the two vertical support rods.

[0014] The length of the first horizontal bar is greater than the length of the second horizontal bar; the bottom of the first horizontal bar and the top of the vertical support bar are formed with insertion holes, and the end of the inclined support bar is formed with an insertion protrusion. The insertion protrusion is matched and inserted into the insertion hole, so that the inclined support bar can be detachably and obliquely inserted between the vertical support bar and the first horizontal bar.

[0015] All plug-in nodes have rectangular protrusions and holes.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1. This utility model, by incorporating corner connectors, a first horizontal bar, a load-bearing steel wire mesh, a second horizontal bar, and a vertical support bar, enables rapid connection and disassembly of the first horizontal bar, the second horizontal bar, and the vertical support bar via the corner connectors and the insertion part. The insertion node connection has high reliability and structural stability, and strong load-bearing capacity. The load-bearing steel wire mesh, which is quickly installed with bolts, serves as a construction platform, ensuring the safe use of the trestles while improving the ease of disassembly, assembly, and transportation. After disassembly, it has a small volume, making transportation, storage, and turnover more flexible and convenient.

[0018] 2. Because this utility model is equipped with insertion holes and insertion protrusions, the matching insertion of the rectangular-section insertion holes and insertion protrusions allows for flexible and quick assembly of the corner connectors, the first horizontal bar, the second horizontal bar, and the vertical support. Furthermore, the appropriate size of the first horizontal bar, the second horizontal bar, and the vertical support can be selected according to actual usage requirements, making it widely adaptable to different construction and usage needs and highly valuable in application.

[0019] 3. Because this utility model is equipped with a third horizontal bar and an inclined support bar, the third horizontal bar can improve the structural strength and load-bearing capacity of the side frame assembly, and the inclined support bar can improve the connection strength between the side frame assembly and the first horizontal bar, thereby improving the overall integrity and structural stability of the trestle, providing reliable load-bearing for construction, making it less prone to deformation and damage, and with a long service life. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the modular concrete pouring trestle of this utility model;

[0021] Figure 2 This is a perspective view of the corner connector of the assembleable concrete pouring trestle of this utility model.

[0022] In the diagram, 1 is the side frame assembly, 2 is the first horizontal bar, 3 is the load-bearing wire mesh, 4 is the vertical support bar, 5 is the second horizontal bar, 6 is the third horizontal bar, 7 is the corner connector, 71 is the first insertion part, 72 is the second insertion part, 73 is the third insertion part, 8 is the diagonal support bar, and 9 is the bolt hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Please see the appendix Figure 1 A type of assembleable concrete pouring trestle includes side frame components 1, first horizontal bars 2, and load-bearing steel wire mesh 3. The first horizontal bars 2 are detachably horizontally connected between a pair of side frame components 1, and the pair of first horizontal bars 2 are symmetrically arranged on both sides of the top of the side frame components 1 to form the main body of the trestle. Bolt holes 9 are formed on the top of both the pair of side frame components 1 and the pair of first horizontal bars 2. The load-bearing steel wire mesh 3 is detachably laid on the top surface of the main body of the trestle through the bolt holes 9.

[0025] Preferably, the side frame assembly 1 and the first horizontal bar 2 can be made of steel, which has high structural strength and strong load-bearing capacity. The specifications of the side frame assembly 1, the first horizontal bar 2 and the load-bearing wire mesh 3 can be adapted to the load-bearing requirements required for use, so as to ensure the safe support of construction personnel and the effective protection of the reinforcing steel below.

[0026] The side frame assembly 1, the first horizontal bar 2, and the load-bearing wire mesh 3 are connected by a detachable connection, which is convenient and quick to assemble and disassemble. After disassembly, the size is small, which is convenient for handling, turnover and storage, and has high flexibility and convenience in use.

[0027] In use, four vertical support rods 4 are erected on the ground in the concrete pouring area, so that the load-bearing steel wire mesh 3 is erected above the reinforcing bars. Construction workers stand on the load-bearing steel wire mesh 3 to carry out concrete pouring. The load is transferred to the ground through the load-bearing steel wire mesh 3 and a pair of side frame components 1.

[0028] Please see the appendix Figure 1 Each set of side frame components 1 includes a pair of vertical support rods 4, a second horizontal rod 5, and a pair of corner connectors 7; the upper end of the vertical support rod 4 is detachably inserted into the bottom of the corner connector 7, the two ends of the second horizontal rod 5 are detachably inserted into the top of the pair of corner connectors 7 respectively, and the first horizontal rod 2 is detachably inserted into the top of the corner connectors 7 on the same side of the pair of side frame components 1; the second horizontal rod 5 is perpendicular to the first horizontal rod 2, so that the pair of first horizontal rods 2 and the pair of second horizontal rods 5 of the side frame form a rectangular frame structure; bolt holes 9 are formed at intervals on the top of the second horizontal rod 5 and the corner connector 7.

[0029] Preferably, the first horizontal bar 2, the vertical support bar 4, the second horizontal bar 5, and the corner connector 7 can be made of square steel pipe. The lengths of the first horizontal bar 2, the vertical support bar 4, and the second horizontal bar 5 can be adapted to the actual use requirements to ensure that the height of the trestle after assembly can meet the requirements for erection and protection above the reinforcing bars, and that the width and length of the trestle can meet the needs of construction workers to carry out construction work on the trestle.

[0030] The corner connector 7 is used to connect the first horizontal bar 2, the vertical support bar 4, and the second horizontal bar 5, so that a pair of first horizontal bars 2 and a pair of second horizontal bars 5 of the side frame enclose a rectangular frame structure with high structural stability. It is used to install the load-bearing wire mesh 3 as a load-bearing construction surface, and to make the vertical support bar 4 a vertical load-bearing component of the load-bearing construction surface.

[0031] Please see the appendix Figure 2The corner connector 7 has a first insertion part 71 at its bottom, and an insertion hole (not shown in the figure) is formed at the bottom of the first insertion part 71. The vertical support rod 4 has an insertion protrusion (not shown in the figure) at its top. The insertion protrusion is matched and inserted into the insertion hole, so that the vertical support rod 4 can be detachably and vertically inserted into the bottom of the corner connector 7.

[0032] Preferably, the first insertion part 71 and the corner connector 7 are integrally formed. The first insertion part 71 and the vertical support rod 4 are inserted into each other through the matching of the insertion protrusion and the insertion hole. The insertion direction of the insertion protrusion and the insertion hole is vertical, which facilitates the quick insertion and disassembly of the vertical support rod 4 and the corner connector 7. The connection has high reliability and good load-bearing and force transmission effect.

[0033] Please see the appendix Figure 2 The corner connector 7 has a second insertion part 72 formed laterally on its top. The end of the second insertion part 72 away from the corner connector 7 has an insertion hole (not shown in the figure). The end of the second horizontal rod 5 has an insertion protrusion (not shown in the figure). The insertion protrusion is matched and inserted into the insertion hole, so that the second horizontal rod 5 is laterally inserted between the tops of a pair of corner connectors 7.

[0034] Preferably, the second insertion part 72 is integrally formed with the corner connector 7. The second insertion part 72 and the second horizontal rod 5 are connected by matching insertion protrusions and insertion holes. The insertion direction of the insertion protrusions and insertion holes is horizontal, which facilitates the quick connection and disassembly of the second horizontal rod 5 and the corner connector 7. The connection reliability is high, and the load-bearing and force transmission effect of the connection node is good.

[0035] Please see the appendix Figure 2 The corner connector 7 has a third insertion part 73 formed longitudinally at its top. The end of the third insertion part 73 away from the corner connector 7 has an insertion hole (not shown in the figure). The end of the first horizontal bar 2 has an insertion protrusion (not shown in the figure). The insertion protrusion is matched and inserted into the insertion hole, so that the first horizontal bar 2 is longitudinally inserted between the tops of the corner connectors 7 of the pair of side frame assemblies 1 and perpendicular to the second horizontal bar 5.

[0036] Preferably, the third insertion part 73 is integrally formed with the corner connector 7. The third insertion part 73 and the first horizontal bar 2 are inserted through the matching of the insertion protrusion and the insertion hole. The insertion direction of the insertion protrusion and the insertion hole is longitudinal, which facilitates the quick insertion and disassembly of the first horizontal bar 2 and the corner connector 7. The connection reliability is high and the load-bearing and force transmission effect of the connection node is good.

[0037] Please see the appendix Figure 2 The first insertion part 71, the second insertion part 72 and the third insertion part 73 are arranged perpendicularly to each other in the axial direction, which ensures that the vertical support rod 4, the first horizontal rod 2 and the second horizontal rod 5 are arranged perpendicularly to each other in the axial direction, forming a trestle body with high structural stability and strong load-bearing capacity.

[0038] Please see the appendix Figure 1 The two vertical support rods 4 are provided with insertion holes (not shown in the figure) on their opposite surfaces. The end of the third horizontal rod 6 is provided with an insertion protrusion (not shown in the figure). The insertion protrusion is fitted into the insertion hole, so that the third horizontal rod 6 is detachably and horizontally inserted between the two vertical support rods 4.

[0039] By horizontally inserting the third horizontal bar 6 between a pair of vertical supports 4, the structural strength and load-bearing capacity of the side frame assembly 1 can be improved, making it less prone to deformation and damage during use. Preferably, the third horizontal bar 6 can be arranged in the upper middle part of the vertical supports 4, and the installation height of the third horizontal bar 6 can also be adaptively adjusted according to actual usage requirements to avoid touching the reinforcing steel and poured concrete below.

[0040] Please see the appendix Figure 1 The length of the first horizontal bar 2 is greater than the length of the second horizontal bar 5; the bottom of the first horizontal bar 2 and the top of the vertical support bar 4 are formed with insertion holes (not shown in the figure), and the end of the inclined support bar 8 is formed with an insertion protrusion (not shown in the figure). The insertion protrusion is matched and inserted into the insertion hole, so that the inclined support bar 8 is detachably and obliquely inserted between the vertical support bar 4 and the first horizontal bar 2.

[0041] By using the oblique support rod 8 to connect the vertical support rod 4 and the first horizontal rod 2, the connection reliability of the first horizontal rod 2 between the pair of side frame components 1 can be improved, the structural strength and integrity of the entire trestle can be improved, and the load can be transferred to the pair of side frame components 1 and then to the ground, resulting in high safety and structural stability.

[0042] Preferably, the cross-section of the insertion protrusion is rectangular, and the cross-section of the insertion hole is a rectangle that matches the insertion protrusion.

[0043] All plug-in nodes have rectangular protrusions and holes, which prevent relative twisting after plugging in, ensuring the stability of the plugging and making it less prone to loosening.

[0044] Please see the appendix Figure 1 and attached Figure 2 The method of use and working principle of this utility model are as follows:

[0045] Select vertical support rods 4 of appropriate length according to the height of the reinforcement arrangement. Select first horizontal rods 2 and second horizontal rods 5 of appropriate length and load-bearing steel wire mesh 3 of appropriate size according to the required size of the trestle walking surface. Transport the four vertical support rods 4, four corner connectors 7, load-bearing steel wire mesh 3, two first horizontal rods 2 and two second horizontal rods 5 to the construction position.

[0046] The upper end of the vertical support rod 4 is detachably connected to the first insertion part of the corner connector 7 through insertion protrusions and insertion holes. The two ends of the second horizontal rod 5 are detachably connected to the second insertion parts of the two corner connectors 7 through insertion protrusions and insertion holes. The two ends of the first horizontal rod 2 are detachably connected to the second insertion parts of the two corner connectors 7 through insertion protrusions and insertion holes. The two first horizontal rods 2 and the two second horizontal rods 5 are symmetrically arranged and connected by the four corner connectors 7 to form a rectangular frame structure, which serves as the mounting surface for the load-bearing wire mesh 3. The third horizontal rod 6 is detachably connected between a pair of vertical support rods 4 through insertion protrusions and insertion holes. The diagonal support rod is detachably connected between the first horizontal rod 2 and the vertical support rod 4 through insertion protrusions and insertion holes to reinforce the trestle and improve its load-bearing capacity.

[0047] The load-bearing steel wire mesh 3 is installed on the rectangular frame structure with bolts through bolt holes 9, serving as the walking surface for the trestles, allowing construction workers to perform construction operations such as concrete pouring on the load-bearing steel wire mesh 3. Preferably, the connection nodes of the insertion protrusions and insertion holes can be reinforced by tightening bolts to prevent loosening at the insertion connection nodes.

[0048] After use, all bolts can be removed, and the trestle can be disassembled by pulling out the insertion hole of the insertion protrusion, making it easy to move the trestle to the next construction location.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A modular concrete pouring trestle, characterized in that: It includes a side frame assembly (1), a first horizontal bar (2) and a load-bearing wire mesh (3); the first horizontal bar (2) is detachably horizontally connected between a pair of side frame assemblies (1), and the pair of first horizontal bars (2) are symmetrically arranged on both sides of the top of the side frame assembly (1) to form the main body of the trestle; bolt holes (9) are formed on the top of both the pair of side frame assemblies (1) and the pair of first horizontal bars (2), and the load-bearing wire mesh (3) is detachably laid on the top surface of the main body of the trestle through bolts and bolt holes (9).

2. The assembleable concrete pouring trestle according to claim 1, characterized in that: Each set of side frame components (1) includes a pair of vertical support rods (4), a second horizontal rod (5), and a pair of corner connectors (7); the upper end of the vertical support rod (4) is detachably inserted into the bottom of the corner connector (7), the two ends of the second horizontal rod (5) are detachably inserted between the tops of the pair of corner connectors (7), and the first horizontal rod (2) is detachably inserted between the tops of the corner connectors (7) on the same side of the pair of side frame components (1); the second horizontal rod (5) is perpendicular to the first horizontal rod (2), so that the pair of first horizontal rods (2) and the pair of second horizontal rods (5) of the side frame form a rectangular frame structure; bolt holes (9) are formed at intervals on the tops of the second horizontal rod (5) and the corner connector (7).

3. The assembleable concrete pouring trestle according to claim 2, characterized in that: The corner connector (7) has a first insertion part (71) at its bottom, and an insertion hole is formed at the bottom of the first insertion part (71). The vertical support rod (4) has an insertion protrusion at its top. The insertion protrusion is matched and inserted into the insertion hole, so that the vertical support rod (4) is detachably and vertically inserted into the bottom of the corner connector (7).

4. The assembleable concrete pouring trestle according to claim 3, characterized in that: The corner connector (7) has a second insertion part (72) formed laterally on its top. The end of the second insertion part (72) away from the corner connector (7) has an insertion hole. The end of the second horizontal rod (5) has an insertion protrusion. The insertion protrusion is matched and inserted into the insertion hole, so that the second horizontal rod (5) is laterally inserted between the tops of a pair of corner connectors (7).

5. The assembleable concrete pouring trestle according to claim 4, characterized in that: The corner connector (7) has a third insertion part (73) formed longitudinally at its top. The end of the third insertion part (73) away from the corner connector (7) has an insertion hole. The end of the first horizontal bar (2) has an insertion protrusion. The insertion protrusion is matched and inserted into the insertion hole, so that the first horizontal bar (2) is longitudinally inserted between the tops of the corner connectors (7) of a pair of side frame assemblies (1) and perpendicular to the second horizontal bar (5).

6. The assembleable concrete pouring trestle according to claim 5, characterized in that: The first plug-in portion (71), the second plug-in portion (72), and the third plug-in portion (73) are arranged perpendicularly to each other in the axial direction.

7. The assembleable concrete pouring trestle according to claim 2, characterized in that: The two vertical support rods (4) are arranged opposite each other with insertion holes formed on their surfaces. The end of the third horizontal rod (6) is formed with an insertion protrusion. The insertion protrusion is matched and inserted into the insertion hole, so that the third horizontal rod (6) is detachably and horizontally inserted between the two vertical support rods (4).

8. The assembleable concrete pouring trestle according to claim 2, characterized in that: The length of the first horizontal bar (2) is greater than the length of the second horizontal bar (5); the bottom of the first horizontal bar (2) and the top of the vertical support bar (4) are formed with insertion holes, and the end of the inclined support bar (8) is formed with insertion protrusions. The insertion protrusions are matched and inserted into the insertion holes, so that the inclined support bar (8) can be detachably and obliquely inserted between the vertical support bar (4) and the first horizontal bar (2).

9. The assembleable concrete pouring trestle according to any one of claims 3-5, 7, and 8, characterized in that: All plug-in nodes have rectangular protrusions and holes.

Citation Information

Patent Citations

  • Horse stool

    CN220768792U