Wall expansion joint device and construction method

Abstract

The invention provides a wall expansion joint device and a construction method.The wall expansion joint device comprises a plurality of partition plates matched with a wall and further comprises a partition frame body, and the partition frame body is arranged among the multiple partition plates to be reinforced; the separation frame body is telescopic so as to adapt to walls with different thicknesses and sizes. According to the using method of the wall expansion joint device, the width of the partition frame body is adjusted according to the size of the wall, the matched partition plates are installed on the two sides of the partition frame body, and the wall expansion joint device is arranged at the expansion joint of the adjacent wall. The cast-in-place wall expansion joint device has the beneficial effects that cast-in-place wall expansion joint construction is more convenient, the construction efficiency is improved, meanwhile, the high-altitude operation risk can be reduced, the pouring quality is guaranteed, meanwhile, the device is detachable and reusable, the structure is simple, the machining cost is low, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a wall expansion joint device and a construction method. Background Art

[0002] In the existing technology, wall expansion joints are an important structural measure in buildings, mainly used to solve the deformation problem of buildings caused by factors such as temperature, humidity, uneven foundation settlement and earthquakes. By setting expansion joints, cracks in the wall can be effectively reduced to ensure the safety, stability and service life of the building. However, the expansion joint operation space is small, the building formwork reinforcement is difficult, and the construction process is cumbersome. For the construction of expansion joints such as parapets, construction workers need to perform cumbersome processes on a high-altitude operating platform, which is time-consuming and labor-intensive and has safety hazards; when supporting traditional cast-in-place wall formwork, there are mainly two ways to set up concrete partitions: one is to use building formwork. Due to the excessive lateral rigidity of the building formwork, it is difficult to dismantle the wall after pouring, and it is easy to damage the surrounding concrete. The secondary construction leads to an increase in construction costs, and the cost of the consumed measures is too high; the second is to use polystyrene foam board, which is easy to dismantle, but the rigidity is insufficient. It is easy to deviate when pouring concrete, destroying the geometric dimensions of the wall expansion joint, and there are quality risks; and both methods are destructive demolition, and the materials cannot be reused. There are technical problems such as small operating space for expansion joints, great construction difficulty and complicated operating procedures, which lead to safety hazards during high-altitude construction; the formwork needs to be destructively removed after the concrete pouring is completed, which easily damages the surrounding concrete and the material cannot be reused; the polystyrene foam board used is not rigid enough to ensure the quality of the expansion joint. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a wall expansion joint device and a construction method, which are particularly suitable for simple and quick wall expansion joint construction. The convenient disassembly can not only ensure the casting quality, but the device can also be reused, thereby ensuring the construction cost while improving the construction efficiency and reducing the risk of high-altitude operations.

[0004] The technical solution adopted by the present invention is: a wall expansion joint device, including a plurality of partition plates adapted to the wall, and a partition frame body connected to the partition plates, wherein the partition frame body is arranged between the plurality of partition plates for reinforcement.

[0005] Furthermore, the partition frame body is telescopic to adapt to walls of different sizes.

[0006] Furthermore, the partition frame body includes a connecting component and two relatively arranged supporting components, each supporting component includes a bracket and a telescopic component connected to the bracket, the connecting component includes a fixing assembly and a connecting seat for connecting the two telescopic components, at least one telescopic component is movably connected to the connecting seat and fixed by a fixing assembly, and each partition plate is connected to at least one bracket.

[0007] Furthermore, a plurality of fixing grooves are arranged on the surface of at least one telescopic member and is slidably connected to the connecting seat. The fixing assembly includes a limiting member movably connected to the connecting seat, and the limiting member can be embedded in the fixing groove for fixing.

[0008] Furthermore, the fixing assembly also includes a spring and a driving rod connected to the limit member, the two ends of the spring are respectively connected to the connecting seat and the driving rod, the driving rod is rotatably connected to the connecting seat, and when the driving rod drives the limit member away from the fixing groove, the spring is compressed by the driving rod.

[0009] Furthermore, the fixing assembly also includes a button, which is connected to the connecting seat to control the movement of the driving rod.

[0010] Furthermore, the partition frame body also includes a locking component. When the partition frame body is contracted for storage, two ends of the locking component are respectively connected to corresponding brackets for fixation.

[0011] Furthermore, the partition frame body also includes a retractable diamond frame, and the two brackets are respectively connected to the corresponding ends of the diamond frame for stability.

[0012] Furthermore, the present invention also provides a construction method of a wall expansion joint device, comprising the following steps:

[0013] When the width of the partition frame body needs to be adjusted, first press the button, compress the spring through the driving rod and control the limiter to separate from the fixed groove, move the telescopic part to the fitting position, then release the button and control the limiter to embed into the corresponding fixed groove through the reset force of the spring;

[0014] After the width of the partition frame body is adjusted, matching partition plates are installed on both sides of the partition frame body, and the wall expansion joint device is placed at the expansion joint.

[0015] The advantages and positive effects of the present invention are as follows: due to the adoption of the above technical scheme, the construction of cast-in-place wall expansion joints is more convenient, the construction efficiency is improved and the risk of high-altitude operations can be reduced, the casting quality is guaranteed and the device can be disassembled and reused; it has the advantages of simple structure, low processing cost, easy installation and disassembly, guaranteed casting quality and the device can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of a partition frame body when it is retracted in one embodiment of the present invention;

[0017] Figure 2 is a three-dimensional schematic diagram of a partition frame body when stretched in one embodiment of the present invention;

[0018] Figure 3 is a front view of a partition frame body in an embodiment of the present invention;

[0019] Figure 4 yes Figure 3 Schematic diagram of the middle AA section;

[0020] Figure 5 is a top view of a partition frame body when it is retracted in one embodiment of the present invention;

[0021] Figure 6 For easy viewing Figure 1 A partial cross-sectional enlarged view of the connection relationship between the connecting component and the supporting component;

[0022] Figure 7 is a cross-sectional schematic diagram of an embodiment of the present invention when in use;

[0023] In the figure:

[0024] 1. Connecting parts 2. Support parts 3. Locking parts

[0025] 4. Diamond frame 5. Partition board 6. Wall

[0026] 11. Connecting seat 12. Limiting piece 13. Spring

[0027] 14. Support shaft 15. Driving rod 16. Button

[0028] 21, bracket 22, telescopic member 221, fixing groove

[0029] 41, connecting rod 42, pin shaft 43, roller DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described below in conjunction with the drawings. The described embodiments are only a part of the embodiments of the invention, rather than all the embodiments.

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0032] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, and may refer to direct connection, installation or fixation, or indirect connection, installation or fixation, and the present invention does not limit this.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] like Figures 1 to 7 As shown, a schematic diagram of an embodiment of a wall expansion joint device of the present invention includes a plurality of partition plates 5 adapted to a wall 6, and also includes a partition frame body connected to the partition plates 5, and the partition frame body is arranged between the plurality of partition plates 5 for reinforcement.

[0035] In the present embodiment, the partition plate 5 is detachable. The partition plate 5 is not only detachably connected to the partition frame body, but also made of a material with low adhesion to concrete. The partition plate 5 in the present embodiment includes an extruded board. The low adhesion property with concrete can not only ensure that the device can be detached and reused, but also ensure that the molding quality of the surrounding concrete is not damaged after disassembly, thereby avoiding secondary repair construction, and thus saving manpower and construction material costs; a partition frame body is arranged between multiple extruded boards to increase rigidity, thereby ensuring that the partition plate 5 can effectively resist the lateral pressure during concrete pouring, ensuring the molding quality of the expansion joint, and improving the construction quality.

[0036] In this embodiment, the partition frame body can be retracted to adapt to walls of different sizes 6. The device has wide applicability and is easy to install. One construction worker can complete the installation of the device. The device can be pre-assembled in advance to reduce the risk of high-altitude operations and ensure the safety of construction workers. The present invention has a simple structure and is easy to transport and dispatch.

[0037] In this embodiment, the partition frame body includes a connecting component 1 and two relatively arranged supporting components 2, each supporting component 2 includes a bracket 21 and a telescopic component 22 connected to the bracket 21, the connecting component 1 includes a fixing component and a connecting seat 11 for connecting the two telescopic components 22, at least one telescopic component 22 is movably connected to the connecting seat 11 and fixed by a fixing component, and each partition plate 5 is connected to at least one bracket 21.

[0038] In different embodiments, the telescopic member 22 and the connecting seat 11 are movably connected to each other to achieve the telescopic function in various forms, such as the telescopic member 22 is rotatably connected to the connecting seat 11, for example, the telescopic member 22 includes a threaded rod, which is threadedly connected to the bracket 21 and the connecting seat 11 to achieve telescopic function; or a plurality of adjustment holes are provided on the telescopic member 22, and a fixing hole is provided on the connecting seat 11, and the fixing hole corresponds to any adjustment hole and is fixed by bolts to adjust the width of the bracket body; in this embodiment, a plurality of fixing grooves 221 are provided on the surface of at least one telescopic member 22 and is slidably connected to the connecting seat 11, and the fixing component includes a limit member 12 movably connected to the connecting seat 11, and the limit member 12 can be embedded in the fixing groove 221 for fixation.

[0039] The telescopic members 22 disposed on both sides of the connection seat 11 can be fixedly connected to the connection seat 11 at one end and flexibly connected to the connection seat 11 at the other end to realize the telescopic function of the partition frame body; in this embodiment, each telescopic member 22 is flexibly connected to the connection seat 11, which can ensure the flexibility of use, convenient operation and improve the installation efficiency. The two supporting components 2 are symmetrically disposed on both sides of the connection component 1, and the structural design and use function of the two sides of the connection component 1 are the same, which better ensures the stability of the device during use and fixation. The symmetrical design can ensure the safety and stability of the construction process, thereby ensuring the construction quality.

[0040] In this embodiment, the fixing assembly further includes a spring 13 and a driving rod 15 connected to the stopper 12. The two ends of the spring 13 are respectively connected to the connection seat 11 and the driving rod 15. The driving rod 15 is rotatably connected to the connection seat 11. When the driving rod 15 drives the stopper 12 away from the fixing groove 221, the spring 13 is compressed by the driving rod 15. The fixing assembly also includes a support shaft 14, which is connected to the connection seat 11. The driving rod 15 is rotatably connected to the connection seat 11 through the support shaft 14. In this embodiment, the driving rod 15 is mounted on the support shaft 14 and connected to the stopper 12. In other embodiments, the support shaft 14 can also be passed through the driving rod 15 to achieve the rotatable connection between the driving rod 15 and the connection seat 11.

[0041] In this embodiment, the connecting seat 11 is provided with an active cavity, and the telescopic member 22 is inserted in the active cavity to achieve mutual sliding connection with the connecting seat 11; each telescopic member 22 is vertically connected to the corresponding bracket 21, the bracket 21 is vertically arranged, and the telescopic member 22 is horizontally arranged. The mutually perpendicular arrangement can facilitate the telescopic adjustment of the telescopic member 22, and facilitate the telescopic member 22 to quickly move and adjust in the active cavity of the connecting seat 11; in this embodiment, an active cavity is respectively arranged at the left and right ends of the connecting seat 11 for adjusting the corresponding telescopic member 22, and the length of each active cavity is not less than the length of the corresponding telescopic member 22, that is, when the partition frame body is retracted for storage, the telescopic member 22 can be completely retracted into the active cavity and clamped on the outside of the connecting seat 11 by the bracket 21 to limit the position. When the embodiment is stored, the internal structure can be sealed and stored to prevent the service life from being affected by the long-term exposure of the components, thereby better ensuring the construction cost; in this embodiment, the support shaft 14 is connected to the inner wall of the active cavity, and the driving rod 15 is erected on the support shaft 14 and connected to the limiting member 12. In this embodiment, the spring 13 and the support shaft 14 are respectively arranged on both sides of the driving rod 15, and the spring 13 is arranged at the end close to the limit member 12. When the driving rod 15 is pressed down away from the end of the limit member 12 to drive the limit member 12 to separate from the fixing groove 221, the driving rod 15 compresses the spring 13. When the compressed spring 13 is reset, the spring 13 can drive the limit member 12 to be embedded in the fixing groove 221 through the driving rod 15; in other embodiments, the spring 13 can also be respectively arranged on the same side of the driving rod 15 with the support shaft 14, and the spring 13 is arranged at the end away from the limit member 12. When the driving rod 15 is pressed down away from the end of the limit member 12 to drive the limit member 12 to separate from the fixing groove 221, the driving rod 15 compresses the spring 13. When the compressed spring 13 is reset, the spring 13 can drive the limit member 12 to be embedded in the fixing groove 221 through the driving rod 15. In this embodiment, the telescopic member 22 is plate-shaped, and the telescopic member 22 realizes the function of the fixing groove 221 by installing a sawtooth track.

[0042] In this embodiment, the fixing assembly further includes a button 16, and the button 16 is connected to the connection seat 11 to control the movement of the driving rod 15. In different embodiments, the button 16 can be flexibly selected according to the common technical knowledge of those skilled in the art to control the movement of the driving rod 15, such as electric control, etc. In this embodiment, the button 16 is inserted into the connection seat 11 and the insertion end of the button 16 is connected to the end of the driving rod 15 away from the limiter 12. The structure is simple and the function of controlling the driving rod 15 by the button 16 can be realized, thereby ensuring the manufacturing cost and thus the construction cost.

[0043] On the other hand, the present invention also provides a construction method of a wall expansion joint device, comprising the following steps:

[0044] According to the thickness of the wall 6, when the width of the partition frame body needs to be adjusted, the button 16 is first pressed, the spring 13 is compressed by the driving rod 15 and the limiting member 12 is controlled to separate from the fixing groove 221, and the telescopic member 22 is moved to the fitting position, and then the button 16 is released and the restoring force of the spring 13 is used to control the limiting member 12 to be embedded in the corresponding fixing groove 221;

[0045] After the width of the partition frame body is adjusted, matching partition plates 5 are installed on both sides of the partition frame body, and the wall 6 expansion joint device is placed at the expansion joint between adjacent walls 6 .

[0046] In this embodiment, the partition frame body also includes a locking component 3. When the partition frame body is retracted for storage, that is, when the telescopic member 22 is completely moved into the active cavity of the connecting seat 11, the brackets 21 provided on both sides can fit each other. At this time, the two ends of the locking component 3 can be respectively connected to the corresponding brackets 21 for fixing. The locking component 3 includes a locking connecting piece and two butterfly-shaped locking bolts. The two ends of the locking connecting piece correspond to the corresponding brackets 21 respectively and are tightened by screwing in the butterfly-shaped locking bolts. The butterfly-shaped design is convenient for construction personnel to lock or loosen operations. The convenient operation can improve the efficiency of installation and disassembly. The locking component 3 can also improve the stability of the wall expansion joint device when it is retracted and stored.

[0047] In this embodiment, the partition frame body further includes a retractable diamond frame 4, and two brackets 21 are respectively connected to the corresponding ends of the diamond frame 4 for stability. In this embodiment, the bracket 21 is a T-shaped steel frame, which includes a vertical plate and two clamping plates, the two clamping plates are arranged opposite to each other and are vertically connected to the vertical plate to form a T shape, and the telescopic member 22 is arranged on the top of the bracket 21. The width of the telescopic member 22 is the same as the width of the vertical plate and they are vertically connected to each other to form an L shape. The plate-shaped telescopic member 22, the vertical plate and each clamping plate can form a mounting groove for mounting the partition plate 5. In this embodiment, the diamond frame 4 includes a plurality of connecting rods 41, a plurality of pin shafts 42 and a plurality of rollers 43. The connecting rods 41 are arranged in groups of two, cross each other in an X shape, and the two connecting rods 41 in each group are rotatably connected to each other. The two connecting rods 41 in each group can be hinged by the pin shaft 42 to realize the function of mutual rotation connection. The plurality of groups of connecting rods 41 are arranged at intervals along the height direction of the bracket 21. The end of each connecting rod 41 is rotatably connected to the corresponding bracket 21 by a roller 43, and the roller 43 is arranged between two clamping plates. The retractable diamond frame 4 can improve the connection strength of the two brackets 21 arranged relatively to each other, and ensure that the entire wall expansion joint device is more stable when the two brackets 21 move closer to or away from each other; it can also provide better support for the partition plate 5, improve the rigidity of the partition plate 5, and ensure that the partition plate 5 can resist the lateral pressure during concrete pouring; it can better ensure that the partition plate 5 is not damaged during disassembly, thereby ensuring that the construction materials can be disassembled and reused.

[0048] The working process of this example:

[0049] Normally, the limiting member 12 and the fixing groove 221 are in an engaged state, and the width of the partition frame body cannot be adjusted at this time;

[0050] When the width of the partition frame body needs to be adjusted, the button 16 is pressed and the limit piece 12 is driven to separate from the fixed groove 221 through the driving rod 15. At this time, the spring 13 is compressed by the driving rod 15, and the corresponding telescopic piece 22 is moved to adjust the width of the partition frame body. The two brackets 21 move relative to each other and drive the diamond frame 4 to stretch or shrink. When the width of the partition frame body is adjusted, the button 16 is released, and the spring 13 drives the limit piece 12 to engage with the fixed groove 221 again through the reset force. The matching partition plate 5 is installed on the bracket 21 and the diamond frame 4. After the wall formwork on one side is supported, the wall expansion joint device is placed at the expansion joint to realize the separation function.

[0051] When the wall expansion joint device is not in use, the partition frame body can be quickly disassembled and retracted so that the expansion member 22 is completely retracted into the connecting seat 11, and the brackets 21 fit each other. The two brackets 21 correspond to the two ends of the locking connecting piece respectively and are fixed by screwing in the locking bolts for storage. If the wall expansion joint device needs to be used again, first loosen the locking bolts and remove the locking connecting piece, and then adjust the partition frame body to the suitable width.

[0052] This embodiment uses a retractable structure to meet the construction needs of walls 6 of different sizes. It can be retracted when not in use to save space during storage. It has a simple structure and is easy to install and disassemble. The device is not only reusable, but also can ensure that one construction worker can complete the expansion joint construction. It is more suitable for construction scenes with small operating space such as parapets. It has high construction efficiency and can reduce the time of high-altitude operations, thereby ensuring construction safety. The detachable function is achieved through the partition plate 5 with low adhesion to the concrete, which ensures that the surrounding concrete is not damaged after removal, reduces secondary construction, and reduces construction costs. The rigidity of the partition plate 5 can be improved through the partition frame body to ensure that no deformation or displacement occurs during concrete pouring, thereby improving the construction quality and ensuring the quality of the expansion joint.

[0053] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A wall expansion joint device, comprising a plurality of partition plates adapted to the wall, characterized in that: It also includes a partition frame body connected to the partition plates, and the partition frame body is arranged between the plurality of partition plates for reinforcement.

2. The wall expansion joint device according to claim 1, characterized in that: The partition frame body is telescopic to adapt to walls of different sizes.

3. The wall expansion joint device according to claim 2, characterized in that: The partition frame body includes a connecting component and two relatively arranged supporting components, each of the supporting components includes a bracket and a telescopic component connected to the bracket, the connecting component includes a fixing assembly and a connecting seat for connecting two telescopic components, at least one telescopic component is movably connected to the connecting seat and fixed by the fixing assembly, and each of the partition plates is connected to at least one of the brackets.

4. The wall expansion joint device according to claim 3, characterized in that: A plurality of fixing grooves are arranged on the surface of at least one of the telescopic members and is slidably connected to the connecting seat. The fixing assembly comprises a limiting member movably connected to the connecting seat, and the limiting member can be embedded in the fixing groove for fixing.

5. The wall expansion joint device according to claim 4, characterized in that: The fixing assembly also includes a spring and a driving rod connected to the limiting member, the two ends of the spring are respectively connected to the connecting seat and the driving rod, the driving rod is rotatably connected to the connecting seat, and when the driving rod drives the limiting member away from the fixing groove, the spring is compressed by the driving rod.

6. The wall expansion joint device according to claim 5, characterized in that: The fixing assembly further comprises a button, which is connected to the connecting seat to control the movement of the driving rod.

7. The wall expansion joint device according to any one of claims 3 to 6, characterized in that: The partition frame body also includes a locking component. When the partition frame body is shrunk for storage, two ends of the locking component are respectively connected to the corresponding brackets for fixation.

8. The wall expansion joint device according to any one of claims 3 to 6, characterized in that: The partition frame body also includes a telescopic diamond frame, and the two brackets are respectively connected to the corresponding ends of the diamond frame for stability.

9. A construction method for a wall expansion joint device, comprising the wall expansion joint device according to claim 6, characterized in that: The usage steps include: When the width of the partition frame body needs to be adjusted, the button is first pressed, the spring is compressed by the driving rod and the limiting member is controlled to separate from the fixing groove, the telescopic member is moved to the fitting position, and then the button is released and the restoring force of the spring is used to control the limiting member to be embedded in the corresponding fixing groove; After the width of the partition frame body is adjusted, the adapted partition plates are installed on both sides of the partition frame body, and the wall expansion joint device is placed at the expansion joint.

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