A new treatment method and device for expansion joints between columns

Abstract

The present invention discloses a novel method and device for processing expansion joints between columns, which is used for pouring at least two adjacent concrete columns, and includes: a plurality of steel molds, which are tightly arranged around the outside of the steel skeleton of the concrete column to be poured; a partition, which is arranged between two adjacent steel skeletons; a fixing assembly, which is used to fix the steel molds and the partitions and form a pouring space that is closed on all sides between the steel molds and the partitions. The present invention arranges partitions in the preset expansion gaps between the concrete columns, and then uses the fixing assembly to fasten the same partition to multiple steel molds around the outside of the steel skeleton, thereby enclosing a pouring space. At this time, under the mutual positioning effect of the steel skeleton and the steel mold, concrete is poured into the pouring space, which ensures that the positioning of the steel molds and the partitions is not affected, deformation is not likely to occur, and the size of the expansion joints between the columns is better reduced, reducing space waste.

Description

Technical Field

[0001] The present invention relates to the technical field of building expansion joints, and in particular to a novel processing method and device for expansion joints between columns. Background Art

[0002] Building expansion joints, also known as expansion joints, refer to structural joints set vertically at appropriate locations along the length of the building to prevent the building from cracking or being damaged due to climate temperature changes (thermal expansion and contraction).

[0003] Patent document CN212836688U, published on March 30, 2021, discloses a building formwork for expansion joints of frame columns. The technical solution comprises two parallel sets of frame column formwork assemblies, each comprising four vertical rectangular formworks. A plurality of positioning blocks are arranged in a vertical array along the sides of the formworks, each having vertical through-holes. A guide block is provided on the side facing away from the positioning block, each having a through-hole. The two sets of formwork assemblies are provided with a plurality of horizontal chutes on opposite sides of the formworks, each slidably connected to a support unit. The invention also comprises a fastening device sleeved on the outside of the formwork assembly, comprising a long strip of fasteners connected end to end. The beneficial effects of the invention are: simplifying the installation process, improving installation efficiency, increasing the load-bearing capacity of the formworks, ensuring the cross-sectional dimensions of the frame columns, and meeting the dimensional requirements of the expansion joints.

[0004] When there is an expansion joint in the structure, it is more difficult to support the formwork between the frame columns on both sides. The traditional supporting method is to support the formwork twice, such as the above-mentioned existing patent. However, on the one hand, supporting the formwork twice consumes labor time. On the other hand, due to the need for operating space, it is difficult to control the expansion joint to meet the requirements, and sometimes it is even widened to 400mm, wasting space. Another method is to fill the formwork between the frame columns at the expansion joint with partitions of matching thickness. However, the traditional formwork supporting method cannot achieve effective support strength. When pouring concrete on one side, the formwork or partition is easily displaced, resulting in deformation of the cross-sectional size of the component. Therefore, a new method and device for treating the expansion joint between columns is urgently needed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a novel method and device for treating expansion joints between columns, so as to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A novel device for processing expansion joints between columns, which is used for pouring at least two adjacent concrete columns, comprises: a plurality of steel moulds, which are closely arranged around the outside of the steel skeleton of the concrete column to be poured; a partition, which is arranged between two adjacent steel skeletons; and a fixing assembly, which is used to fix the steel moulds and the partitions and form a closed pouring space between the steel moulds and the partitions.

[0008] Preferably, a partition is movably provided on the partition, and the partition is tightly connected to the steel mold.

[0009] Preferably, the fixing assembly includes a threaded member provided through the steel mold, one end of the threaded member is threadedly connected to the partition, and the other end is abutted against the outer wall of the steel mold.

[0010] Preferably, one end of the threaded member passes through the partition and is disposed against the partition.

[0011] Preferably, a slider is fixedly provided on one side of the partition close to the wall, a sliding groove matching the slider is provided on the partition, and a driving component for driving the slider to extend and retract in and out of the sliding groove is provided in the partition.

[0012] Preferably, the driving assembly includes a first sliding rod movably arranged in the partition, a linkage rod is fixedly arranged on the first sliding rod, and a linkage groove matching the linkage rod is provided on the slider.

[0013] Preferably, the driving assembly includes a driving rod that can be lifted and lowered in the partition, and the side wall of the driving rod is hinged to the first sliding rod through a connecting rod structure.

[0014] Preferably, a second sliding rod is movably provided in the partition, one end of the second sliding rod is rotatably connected to a kit, the kit is also hinged to the driving rod through a connecting rod structure, the kit is connected to the second sliding rod through a spiral spring, and a limiting protrusion is provided at the other end of the second sliding rod.

[0015] Preferably, a gear is provided on the second sliding rod, the gear is meshedly connected with a rack, and one end of the rack is connected to a pressure-bearing member that movably extends into the casting space by sliding through the partition and the connecting piece of the partition.

[0016] A novel method for treating expansion joints between columns is based on the novel device for treating expansion joints between columns, wherein a partition is erected between two adjacent steel frame members; a steel formwork is tightly arranged around the outside of the steel frame members and is fixedly connected to the partition through a fixing assembly, so that a closed casting space is formed between the steel formwork and the partition members.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] This novel device for processing expansion joints between columns is implemented by setting a partition between adjacent steel skeletons, that is, in the preset expansion gap between concrete columns, and then fastening the same partition to multiple steel molds surrounding the outside of the steel skeleton through a fixing assembly, thereby enclosing a casting space, and the partition must be located between two adjacent casting spaces. At this time, under the mutual positioning effect of the steel skeleton and the steel mold, pouring concrete into the casting space can ensure that the positioning of the steel mold and the partition is not affected, deformation is less likely to occur, and the size of the expansion joint between the columns is better reduced, reducing space waste and improving the practicality of the device.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the external local structure provided by an embodiment of the present invention;

[0023] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 A schematic diagram of the internal structure of a partition provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

[0026] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 A schematic side cross-sectional view of an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a top-view cross-sectional structure of a straight-line expansion joint provided by an embodiment of the present invention;

[0029] Figure 8A schematic top-view cross-sectional structural diagram of Solution 1 in the form of a cross-shaped expansion joint provided by an embodiment of the present invention;

[0030] Figure 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0031] Figure 10 A schematic top-view cross-sectional structure diagram of Option 2 in the form of a cross-shaped expansion joint provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Steel mold; 2. Partition; 3. Partition; 4. Threaded part; 5. Slider; 6. Slide groove; 7. First slide bar; 8. Linking rod; 9. Linking groove; 10. Drive rod; 11. Second slide bar; 12. Kit; 13. Volute spring; 14. Limiting cam; 15. Gear; 16. Rack; 17. Connector; 18. Pressure part; 19. Elastic part; 20. Retraction groove; 21. Alarm. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] See also Figure 1-10 An embodiment of the present invention provides a novel device for processing expansion joints between columns, which is used for pouring at least two adjacent concrete columns, including: multiple steel molds 1, which are tightly arranged around the outside of the steel skeleton of the concrete column to be poured; a partition 2, which is arranged between two adjacent steel skeletons; and a fixing component, which is used to fix the steel molds 1 and the partition 2 and form a closed pouring space between the steel molds 1 and the partition 2.

[0036] Specifically, the frame columns have two arrangement methods of being arranged side by side or in a four-rectangle array; there is a "one"-shaped expansion joint between two frame columns arranged side by side; there is a "cross"-shaped expansion joint between the frame columns in a four-rectangle array. For the "one"-shaped expansion joint, the steel formwork 1 is in a "C" shape and can surround three faces of the frame column; two symmetrical steel formworks 1 are provided; the end of the steel formwork 1 is provided with a bent part for closely adhering to the surface of the partition 2; the partition 2 is in a "one" shape. For the "cross"-shaped expansion joint, there are two solutions. Solution 1: The steel formwork 1 is still in a "C" shape and can surround the outer three-direction faces of two side-by-side frame columns; two symmetrical steel formworks 1 are provided; the end of the steel formwork 1 still has a bent part for closely adhering to the surface of the partition 2; the partition 2 is in a "cross" shape and is filled in the expansion joint between the four frame columns. Solution 2: The steel formwork 1 is in an "L" shape and can surround the two turning faces facing outward of the frame column; four steel formworks 1 are provided; the end of the steel formwork 1 still has a bent part for closely adhering to the surface of the partition 2; the partition 2 is still arranged in a "cross" shape. The steel bar framework of the concrete column is fixed on the foundation or the already cast and fixed building structure. The inner wall of the steel formwork 1 abuts against the steel bar framework to define its definite position relative to the steel bar framework. The outer wall of the steel formwork 1 is provided with vertically staggered rib plates, which can strengthen the strength of the steel formwork 1 and reduce the thickness of the steel formwork 1. The fixing component is used to tightly connect the bent part of the steel formwork 1 with the surface of the partition 2 to define the definite position of the partition 2. In actual use of this technical solution, the steel formwork 1 is surrounded outside the steel bar framework, the partition 2 is arranged between two adjacent steel bar frameworks, and then the same partition 2 is tightly connected to multiple steel formworks 1 surrounding the outside of the steel bar framework through the fixing component, thereby enclosing a pouring space, and the partition 2 must be between two adjacent pouring spaces, that is, in the preset expansion joint between the concrete columns. At this time, under the mutual positioning effect of the steel bar framework and the steel formwork 1, pouring concrete into the pouring space can ensure that the positioning of the steel formwork 1 and the partition 2 is not affected, deformation is not likely to occur, and the size of the expansion joint between the columns is better reduced, reducing space waste.

[0037] Compared with the prior art, a novel treatment device for the expansion joint between columns proposed in the embodiment of the present invention sets the partition 2 between adjacent steel bar frameworks, that is, in the preset expansion joint between the concrete columns, and then the same partition 2 is tightly connected to multiple steel formworks 1 surrounding the outside of the steel bar framework through the fixing component, thereby enclosing a pouring space, and the partition 2 must be between two adjacent pouring spaces. At this time, under the mutual positioning effect of the steel bar framework and the steel formwork 1, pouring concrete into the pouring space can ensure that the positioning of the steel formwork 1 and the partition 2 is not affected, deformation is not likely to occur, and the size of the expansion joint between the columns is better reduced, reducing space waste and improving the practicability of the device.

[0038] As a preferred technical solution of this embodiment, a partition 3 is movably provided on the partition 2, and the partition 3 is tightly connected to the steel mold 1. Specifically, two partitions 3 are arranged opposite each other on both sides of the partition 2; the partition 2 is arranged vertically, and the partition 3 is arranged on the side surface of the partition 2 close to the steel mold 1 and is parallel to the side surface of the partition 2. The movable setting of the partition 3 makes the overall thickness of the partition 2 and the partition 3 adjustable. When the partition 3 is tightly connected to the steel mold 1, the partition 2 and the partition 3 are at the maximum thickness and match the target expansion joint width. Then, this thickness is maintained for pouring. After the concrete is poured and solidified, the steel mold 1 is separated from the partition 3, and the partition 3 can be moved closer to the surface of the partition 2 to reduce its overall thickness, thereby being smaller than the expansion joint width, thereby facilitating the demoulding of the partition 2 and the partition 3.

[0039] As the preferred technical solution of this embodiment, the fixing assembly includes a threaded member 4 provided through the steel mold 1, one end of the threaded member 4 is threadedly connected to the partition 3, and the other end is against the outer wall of the steel mold 1. Specifically, the threaded member 4 is provided through the bent portion of the steel mold 1, and multiple threads are arranged vertically at equal intervals; a pressure head is provided at one end of the threaded member 4, and the pressure head is preferably a hexagonal block or has an inner hexagonal groove thereon; the threaded member 4 is threadedly connected to the partition 3, and under the action of the threaded feeding of the two, the threaded member 4 feeds and cooperates with the pressure head on it to tightly clamp the bent portion of the steel mold 1 between the partition 3 and the pressure head, thereby ensuring that the steel mold 1 is tightly connected to the partition 3.

[0040] As a further preferred technical solution of this embodiment, a screw member 4 passes through one end of the partition plate 3 and abuts against the partition 2. Specifically, when the screw member 4 tightly connects the steel mold 1 and the partition plate 3, the partition plate 3 is away from the surface of the partition 2, reaching the maximum thickness of the two. Therefore, the abutment between the end of the screw member 4 and the partition 2 defines the maximum distance that the partition plate 3 can maintain from the surface of the partition 2. When the screw member 4 is completely removed from the steel mold 1 and the partition plate 3, the partition plate 3 can be moved back to fit the partition 2.

[0041] In another embodiment proposed by the present invention, a slider 5 is fixedly provided on one side of the partition 3 close to the partition 2, a slide groove 6 matching the slider 5 is provided on the partition 2, and a driving component for driving the slider 5 to extend and retract in and out of the slide groove 6 is provided in the partition 2. Specifically, the moving direction of the slider 5 in the slide groove 6 is arranged perpendicular to the side wall of the partition 2; under the condition of corresponding to the same partition 3, no less than two sliders 5 are set at the same horizontal height; in the vertical setting, no less than two groups; the driving component drives each slider 5 to extend and retract synchronously to ensure that the partition 3 remains parallel to the side wall of the partition 2 for movement and adjustment.

[0042] As the preferred technical solution of this embodiment, the driving assembly includes a first slide bar 7 movably arranged in the partition 2, a linkage rod 8 is fixedly arranged on the first slide bar 7, and a linkage groove 9 matching the linkage rod 8 is provided on the slider 5. Specifically, the first slide bar 7 is arranged horizontally along the extension direction of the panel surface of the partition 2; at the same horizontal height, two first slide bars 7 are symmetrically arranged and form a group; the first slide bars 7 are arranged in no less than two groups in a vertical arrangement; the two first slide bars 7 at the same horizontal height move relative to each other; the linkage rod 8 is arranged perpendicular to the slider 5, and the linkage rod 8 is a cylindrical rod; the linkage groove 9 is set as a waist-shaped groove matching the first slide bar 7, and is inclined to the first slide bar 7 in the horizontal direction. In actual use of this technical solution, the first slide bar 7 moves axially, driving the linkage rod 8 to move, and the linkage rod 8 slides in the linkage groove 9. Due to the inclined setting of the linkage groove 9, the slider 5 can telescopically move in and out of the slide groove 6, thereby driving the partition 3 to move; in addition, under the inclined direction of the linkage groove 9, the two partitions 3 can move synchronously relative to each other.

[0043] As the preferred technical solution of this embodiment, the driving assembly includes a driving rod 10 that can be raised and lowered in the partition 2. The side wall of the driving rod 10 is hinged to the first slide bar 7 through a connecting rod structure. Specifically, the driving rod 10 is vertically arranged and located between the first slide bars 7 on both sides at the horizontal height. The setting of the connecting rod structure enables the vertical raising and lowering of the driving rod 10 to be linked with the axial horizontal sliding of the first slide bar 7. A cavity for the movement of the connecting rod structure is provided in the partition 2. Figure 3-4 As shown in the example, when the driving rod 10 rises, the first slide bars 7 on both sides axially move closer to the driving rod 10; when the driving rod 10 falls, the first slide bars 7 on both sides move axially away from the driving rod 10. Furthermore, an elastic member 19 is provided at the lower end of the driving rod 10, and the two ends of the elastic member 19 are connected to the interior of the partition 2 and the lower end of the driving rod 10 respectively. The provision of the elastic member 19 ensures that when the driving rod 10 is not affected by external forces, it remains pushed upward, and then the first slide bars 7 are pulled closer to the driving rod 10 through the connecting rod structure. At this time, the first slide bar 7 drives the partition 3 close to the surface of the partition 2 through the connecting rod 8 and the connecting groove 9. When the driving rod 10 is pressed downward by an external force, the elastic member 19 compresses and stores elastic potential energy. The driving rod 10 pushes the first slide bar 7 away from the driving rod 10 through the connecting rod structure. However, the elastic potential energy of the elastic member 19 causes the driving rod 10 to have a tendency to recover and rise, thereby also causing the first slide bar 7 to move back closer to the driving rod 10.

[0044] In another embodiment of the present invention, a second slide bar 11 is movably provided in the partition 2, and one end of the second slide bar 11 is rotatably connected to a sleeve 12, and the sleeve 12 is also hinged to the driving rod 10 through a connecting rod structure. The sleeve 12 is connected to the second slide bar 11 through a spiral spring 13, and a limiting protrusion 14 is provided at the other end of the second slide bar 11. Specifically, the second slide bar 11 is parallel to the first slide bar 7 and is arranged above the first slide bar 7; under the setting of the connecting rod structure, the second slide bar 11 is driven by the driving rod 10 in the same way as the first slide bar 7, and the two are driven synchronously by the driving rod 10; the sleeve 12 and the second slide bar 11 move axially synchronously; the limiting protrusion 14 is provided on the circumferential surface of the end of the second slide bar 11, and the limiting protrusion 14 can extend out of the end face of the partition 2 with the axial movement of the second slide bar 11; a retraction groove 20 matching the limiting protrusion 14 is provided on the end face of the partition 2; when the limiting protrusion 14 is horizontally corresponding to the retraction groove 20, the spiral spring 13 is in a stressed state and stores elastic potential energy, so that when the limiting protrusion 14 is driven by the second slide bar 11 to extend out of the retraction groove 20, the second slide bar 11 can be rotated by the release of the elastic potential energy of the spiral spring 13, and then drive the limiting protrusion 14 to rotate and be misaligned with the retraction groove 20. Therefore, the limiting protrusion 14 can be limited to the end face of the partition 2, so that the second slide bar 11 cannot move back, and the driving rod 10 cannot rise. At the same time, the elastic member 19 remains compressed and stores elastic potential energy. When the limiting protrusion 14 returns to its normal position with the rotation of the second slide bar 11 and re-aligns with the retraction groove 20, the second slide bar 11 can resume axial movement, and the elastic potential energy of the elastic member 19 is released to drive the driving rod 10 upward, thereby pulling the second slide bar 11 back and returning the limiting protrusion 14 to the retraction groove 20. At this time, the spiral spring 13 remains in a stressed state and stores elastic potential energy. In addition, the second slide bar 11 can be connected to the linkage rod 8 through a sleeve that moves synchronously. A set of sliders 5 can be provided on the partition 3 to correspond to the linkage rod 8 on the second slide bar 11. In this way, the second slide bar 11 can also drive the partition 3 to move, ensuring smooth movement of the partition 3.

[0045] As a preferred technical solution of this embodiment, a gear 15 is provided on the second slide bar 11, which is meshed with a rack 16. One end of the rack 16 is connected to a pressure-bearing member 18 that extends into the casting space by sliding through a connector 17 that passes through the partition 2 and the partition 3. Specifically, a groove that matches the pressure-bearing member 18 is provided on the surface of the partition 3 facing the inner side of the steel mold 1. The pressure-bearing member 18 is set at a height corresponding to the top of the steel skeleton and is used to withstand the lateral pressure of the concrete. An alarm 21 is provided on the end surface of the partition 2 through which the second slide bar 11 passes, and near the retraction groove 20. The trigger switch of the alarm 21 is set in the direction near the retraction groove 20. When the limit protrusion 14 is located on the outside of the partition 2 and rotates to a position corresponding to the horizontal position of the retraction groove 20, it can squeeze and trigger the alarm 21. The pressure-bearing parts 18 correspond one-to-one to the pouring space; for two frame columns arranged side by side, the two symmetrical second sliding rods 11 set in the partition 2 correspond to and link one pressure-bearing part 18 respectively; for four frame columns arranged in a rectangular array, the second sliding rods 11 set in four directions in the cross-shaped partition 2 correspond to and link one pressure-bearing part 18 respectively.

[0046] In actual use of this technical solution, the surface of the partition 3 facing the inner side of the steel mold 1 is attached with an air bubble film, and the air bubble film covers the groove setting; when the driving rod 10 descends, driving each partition 3 to expand outward to the maximum width, the second slide bar 11 drives the limiting protrusion 14 to extend out of the end face of the partition 2. At this time, the elastic potential energy of the spiral spring 13 is released, so the second slide bar 11 rotates, on the one hand driving the limiting protrusion 14 to be misaligned with the retraction groove 20, so that the limiting protrusion 14 is limited to the end face of the partition 2, and on the other hand driving the gear 15 to rotate , the gear 15 is meshed with the rack 16 and drives the pressure piece 18 to extend into the pouring space through the connecting piece 17, thereby the pressure piece 18 can support a part of the bubble film into the pouring space; afterwards, the height of the concrete continues to rise during the pouring process of the pouring space. When the concrete completely covers the steel skeleton, it can just generate lateral pressure on the pressure piece 18, thereby pushing the pressure piece 18 close to the partition 3, and the pressure piece 18 drives the rack 16 to move through the connecting piece 17, and the rack 16 meshes with the gear 15. The combined transmission drives the second slide bar 11 to rotate, and the second slide bar 11 drives the limiting protrusion 14 to rotate, thereby allowing the limiting protrusion 14 to correspond to the retraction groove 20 again, and can squeeze and trigger the alarm 21, prompting the workers that the pouring height of the concrete column has been adapted; in addition, since the pressure-bearing member 18 is always squeezed by the concrete column before the partition 2 is demoulded, it is ensured that the limiting protrusion 14 and the retraction groove 20 remain corresponding, but due to the setting of the screw member 4, the partition 3 is still kept away from the surface of the partition 2, so that the first slide bar 7 and the second slide bar 11 are not The elastic member 19 cannot move back close to the driving rod 10, and the elastic member 19 cannot release the elastic potential energy to drive the driving rod 10 to rise; only when the threaded member 4 is disassembled and the distance between the partition 3 and the partition 2 is no longer restricted, the elastic member 19 can release the elastic potential energy to push the driving rod 10 to rise, and then the driving rod 10 pulls the first slide bar 7 and the second slide bar 11 back close to the driving rod 10, thereby driving the partition 3 to move back close to the partition 2 to reduce the width, facilitate demoulding, and pull the limiting protrusion 14 back to the retraction groove 20 to restore it to its original position. In addition, the retraction groove 20 is located at one end deep inside the partition 2 and is spirally curved, and the limiting protrusion 14 can slide therein, so that when the limiting protrusion 14 is driven by the second slide rod 11 to move back to the retraction groove 20, it can also prompt the second slide rod 11 to rotate in the last section of the retraction groove 20, and this rotation direction is used to drive the pressure piece 18 to continue to approach the partition 2 through the gear 15, rack 16, and connecting piece 17, thereby eliminating the possibility of the pressure piece 18 affecting the demolding of the partition 2.

[0047] A new method for treating expansion joints between columns is based on a new device for treating expansion joints between columns. A partition 2 is vertically arranged between two adjacent steel frame structures. A steel mold 1 is tightly arranged around the outside of the steel frame structure and is fixedly connected to the partition 2 through a fixing component, so that a closed casting space is formed between the steel mold 1 and the partition 2.

[0048] In addition, in the rectangular array arrangement of the four frame columns, the partitions 3 on the partition 2 are adapted in sections on both sides, and when expanded to the maximum width, the ends abut against each other to keep the casting space closed.

[0049] In addition, in the rectangular array arrangement of four frame columns and in the form of two steel molds 1, only two opposite ends of the partition 2 are connected to the steel mold 1, and the other two opposite ends are against the inner wall of the steel mold 1. At the same time, a through groove matching the second slide bar 11, the limiting protrusion 14 and the alarm 21 is opened on the side wall of the steel mold 1 against it. On the one hand, it does not affect the second slide bar 11 driving the limiting protrusion 14 to extend out of the partition 2. On the other hand, the limiting protrusion 14 can also extend out of the outer wall of the steel mold 1 and be limited to the outer wall of the steel mold 1 by rotation, ensuring that the steel mold 1 is tightly against the end of the partition 2 here.

[0050] In addition, in the case of a rectangular array arrangement of four frame columns, the drive rod 10 drives too many structures, and the elastic member 19 has a problem of insufficient force. The upper end of the drive rod 10 can pass through the upper surface of the partition 2 and be provided with a hook, so that it can be driven by an external lifting device.

[0051] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A novel device for treating expansion joints between columns, which is used for pouring at least two adjacent concrete columns, characterized in that: include: A plurality of steel molds (1) are closely arranged around the outside of the steel frame of the concrete column to be poured; A partition (2) is provided between two adjacent steel frame members; A fixing assembly, which is used to fix the steel mold (1) and the partition (2) and to form a closed casting space between the steel mold (1) and the partition (2); A partition (3) is movably provided on the partition (2), and the partition (3) is tightly connected to the steel mold (1); A slider (5) is fixedly provided on one side of the partition (3) close to the partition (2); a slide groove (6) matching the slider (5) is provided on the partition (2); and a driving component for driving the slider (5) to extend and retract in and out of the slide groove (6) is provided in the partition (2); The driving assembly comprises a first slide bar (7) movably arranged in the partition (2), a linkage bar (8) fixedly arranged on the first slide bar (7), and a linkage groove (9) matching the linkage bar (8) arranged on the slider (5); The driving assembly comprises a driving rod (10) which is arranged in a liftable manner in the partition (2), and a side wall of the driving rod (10) is hinged to the first sliding rod (7) via a connecting rod structure.

2. The novel column expansion joint treatment device according to claim 1 is characterized in that: The fixing assembly comprises a threaded member (4) provided through the steel mold (1), one end of the threaded member (4) being threadedly connected to the partition (3) and the other end being in contact with the outer wall of the steel mold (1).

3. The novel column expansion joint treatment device according to claim 2 is characterized in that: One end of the threaded member (4) passes through the partition (3) and is disposed against the partition (2).

4. The novel column expansion joint treatment device according to claim 1 is characterized in that: A second slide bar (11) is movably provided in the partition (2), one end of the second slide bar (11) is rotatably connected to a kit (12), the kit (12) is also hinged to the driving rod (10) through a connecting rod structure, the kit (12) is connected to the second slide bar (11) through a volute spring (13), and a limiting protrusion (14) is provided at the other end of the second slide bar (11).

5. The novel column expansion joint treatment device according to claim 4 is characterized in that: The second slide bar (11) is provided with a gear (15), the gear (15) is meshedly connected with a rack (16), and one end of the rack (16) is connected to a pressure piece (18) that movably extends into the casting space through a connecting piece (17) that slides through the partition (2) and the partition (3).

6. A novel method for treating expansion joints between columns, based on the novel device for treating expansion joints between columns according to any one of claims 1 to 5, characterized in that: The partition (2) is erected between two adjacent steel frame members; the steel formwork (1) is closely arranged around the outside of the steel frame member and is fixedly connected to the partition (2) via a fixing assembly, so that a closed casting space is formed between the steel formwork (1) and the partition (2).

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