Laminated slab abutted seam mortar leakage prevention structure

Abstract

The utility model relates to the field of pouring formworks, in particular to a laminated slab abutted seam grout leakage prevention structure which comprises a formwork, a supporting rod and a connecting rod. The formwork is arranged on the lower layer of a prefabricated slab and abuts against the bottom of the prefabricated slab; connecting parts are arranged at the two ends of the supporting rod, and the two ends of the supporting rod are connected with the two prefabricated plates through the connecting parts; and the connecting rod is arranged between the two prefabricated slabs, one end of the connecting rod is detachably connected with the supporting rod, and the other end of the connecting rod is detachably connected with the formwork. According to the pouring device, the slurry leakage phenomenon in the pouring process of the laminated slabs is effectively prevented, and the flatness and the structural stability of the laminated slabs after splicing are improved.

Description

Technical Field

[0001] The present application relates to the field of casting formwork, and in particular to a composite slab joint anti-leakage slurry structure. Background Art

[0002] The rapid development of construction technology has driven the widespread application of prefabricated structural construction in engineering projects. With the continuous advancement of the construction industry, prefabricated structures have gained widespread favor due to their advantages such as rapid construction speed and controlled quality. As a key component of prefabricated structures, composite slabs not only improve construction efficiency but also effectively address many issues existing in traditional cast-in-place structures, such as heavy on-site work and long construction periods. This new construction method is increasingly widely used in modern construction, bringing new vitality and development opportunities to the construction industry.

[0003] In prefabricated structures, composite panels typically consist of precast panels and cast-in-place strips, making the connection process particularly critical during construction. Currently, the conventional method for connecting composite panels is to place the precast panels directly on aluminum formwork, then tie rebar and pour concrete to complete the connection. Alternatively, some methods utilize specialized connectors, such as embedded parts and connectors, to secure composite panels together and cast them. While these methods are widely used in actual construction, they all have limitations.

[0004] Among the commonly used methods for connecting composite slabs, most prefabricated composite slab construction processes fail to securely connect the slabs to the aluminum formwork. This often results in leakage during concrete pouring and after the concrete has solidified. This not only reduces construction quality but can also prevent the project from meeting design requirements, increasing the cost and time of post-processing and delaying overall acceptance. Utility Model Content

[0005] In order to reduce the probability of leakage during concrete pouring and improve construction quality, the present application provides a composite slab joint anti-leakage structure.

[0006] The composite slab joint anti-leakage structure provided in this application adopts the following technical solutions:

[0007] A composite plate joint anti-leakage slurry structure, comprising a template, a support rod and a connecting rod;

[0008] The template is placed in the lower layer of the prefabricated board and abuts against the bottom of the prefabricated board; both ends of the support rod are provided with connecting parts, and both ends of the support rod are connected to the two prefabricated boards through the connecting parts; the connecting rod is arranged between the two prefabricated boards, and one end thereof is detachably connected to the support rod, and the other end is detachably connected to the template.

[0009] By adopting the above technical solution, the anti-leakage structure of the composite slab joints can place the formwork in the lower layer of the prefabricated slab and abut it against the bottom of the prefabricated slab. The two ends of the support rod are connected to the two prefabricated slabs through the connecting part. One end of the connecting rod is detachably connected to the support rod, and the other end is detachably connected to the formwork, thereby achieving a tight connection between the prefabricated slab and the aluminum formwork, effectively preventing leakage during concrete pouring, and improving construction quality.

[0010] Preferably, both ends of the connecting rod are provided with threaded portions, and the support rod is provided with a first nut, one of the threaded portions is threadedly connected to the first nut, and the other threaded portion is threadedly connected to a second nut, and the second nut is used to connect the template.

[0011] By adopting the above technical solution, the rapid assembly and disassembly of the connecting parts is facilitated, the construction efficiency is improved, the stability of the connection is ensured, and the occurrence of leakage is effectively reduced.

[0012] Preferably, the connecting portion includes a ring sleeved on the support rod, a support plate fixedly connected to the ring, and an abutment plate fixedly connected to the support plate, the ring is slidably connected to the support rod, the support plate is arranged on the lower side of the support rod and is used to abut against the prefabricated plate, and the abutment plate is vertically arranged on the lower side of the support plate and is used to abut against the side of the prefabricated plate.

[0013] By adopting the above technical solution, the abutment plate is vertically arranged on the lower side of the support plate and is used to abut against the side of the prefabricated plate, thereby achieving a stable connection between the prefabricated plate and the support rod, enhancing the overall rigidity of the anti-leakage structure of the composite plate joint, effectively preventing displacement during construction, ensuring a tight connection between the prefabricated plates, reducing leakage, and thus improving construction quality.

[0014] Preferably, it further comprises a pressure rod, which is arranged on the lower side of the template. Two abutting parts are provided on the pressure rod, and the two abutting parts abut against the two sides of the template respectively. The connecting rod is detachably connected to the pressure rod.

[0015] By adopting the above technical solution, the pressure rod is set on the lower side of the formwork and abuts against both sides of the formwork, which can effectively enhance the stability of the formwork; at the same time, the detachable connection design between the connecting rod and the pressure rod facilitates the rapid adjustment of the structure according to actual construction needs, ensuring the tightness of the joints of the composite slabs during the pouring process, thereby effectively preventing leakage and improving construction quality.

[0016] Preferably, both ends of the pressure rod are tilted upward to form abutment portions.

[0017] By adopting the above technical solution, the two ends of the pressure rod are tilted upward to form abutment parts, which can better and stably abut with the two sides of the formwork, avoid the pressure rod exerting pressure on the middle part of the formwork and causing deformation of the formwork, enhance structural stability and improve construction quality.

[0018] Preferably, the center position of the pressure rod is raised upward, thereby forming a groove on the lower side of the pressure rod, and the second nut is arranged in the groove.

[0019] By adopting the above technical solution, the center position of the pressure rod bulges upward, thereby forming a groove on the lower side of the pressure rod. The second nut is set in the groove, which can effectively avoid the interference problem caused by the protrusion of the second nut, improve the overall stability of the structure, and facilitate the installation and fixation of the second nut.

[0020] Preferably, a sealing rubber ring is provided between the connecting rod and the template.

[0021] By adopting this technical solution, a sealing rubber ring is installed between the connecting rod and the formwork, effectively enhancing the sealing performance between the connecting rod and the formwork, further preventing slurry leakage during concrete pouring, and improving construction quality and efficiency. At the same time, the sealing rubber ring creates a soft connection between the connecting rod and the formwork, preventing the tensile force of the connecting rod from directly acting on the formwork.

[0022] Preferably, an isolation sleeve is provided on the surface of the connecting rod.

[0023] By adopting the above technical solution, an isolation sleeve is provided on the surface of the connecting rod, which can effectively reduce the direct contact between the connecting rod and the concrete, making it easier to remove the connecting rod from the composite plate for reuse.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up the formwork, support rods and connecting rods, the precast panels are tightly connected to the formwork, which reduces the leakage of concrete during pouring and improves the construction quality;

[0026] 2. The design of detachable connection between connecting rod and support rod, as well as detachable connection between connecting rod and formwork, facilitates the disassembly and assembly of components during construction and improves construction efficiency. The connection design at both ends of the support rod ensures that the prefabricated panel can be firm and stable during installation, further enhancing the reliability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the anti-leakage slurry structure of the composite plate joints in an embodiment of the present application.

[0028] Markings in the accompanying drawings: 1. Template; 2. Support rod; 21. Connecting part; 211. Ring; 212. Support plate; 213. Abutment plate; 3. Connecting rod; 4. First nut; 5. Second nut; 6. Pressure rod; 61. Abutment part; 62. Groove; 7. Sealing rubber ring; 8. Isolation sleeve. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 This application is described in further detail.

[0030] The composite slab joint anti-leakage structure provided in the embodiment of the present application includes a template 1, a support rod 2, and a connecting rod 3. The template 1 is placed on the lower layer of the precast slab and abuts against the bottom of the precast slab; both ends of the support rod 2 are provided with a connecting portion 21, and both ends of the support rod 2 are connected to the two precast slabs through the connecting portion 21; the connecting rod 3 is arranged between the two precast slabs, and one end thereof is detachably connected to the support rod 2, and the other end is detachably connected to the template 1, thereby reducing the leakage of concrete during pouring and improving the construction quality. Specifically, a first nut 4 is welded to the support rod 2, and both ends of the connecting rod 3 are provided with a threaded portion, one of which is screwed to the first nut 4, and the other threaded portion passes through the template 1 and is connected to the second nut 5, thereby achieving the fixation of the template 1.

[0031] Specifically, the template 1 is the basic supporting part of the entire structure. The template 1 can be made of metal materials, such as steel or aluminum alloy, so as to ensure sufficient strength and good durability. The shape of the template 1 can be adjusted according to actual conditions. The common shape is rectangular. The thickness of the template 1 is generally between 1mm and 5mm, and the appropriate thickness is selected according to the bearing capacity requirements. A pad is provided on the side of the template 1 that contacts the prefabricated board. The pad can be made of polymer material, which can not only enhance the friction of the contact surface but also play a buffering role to prevent the prefabricated board from displacement during the casting process.

[0032] The formwork 1 can be equipped with reinforcing ribs located within the formwork 1 to increase its overall rigidity. These ribs can be strips, meshes, or other suitable forms to ensure that the formwork 1 does not deform under heavy loads. Sealing strips can be installed around the formwork 1. These sealing strips are typically made of rubber or silicone and effectively fill the gap between the formwork 1 and the precast panels, preventing concrete from leaking into the external environment.

[0033] As an important component for connecting prefabricated panels, the main material of the strut 2 can be high-strength alloy steel, which has high strength and toughness and is suitable for repeated use. The strut 2 can be a solid cylinder or a hollow tube. The specific form depends on the actual stress conditions and manufacturing process. The diameter of the strut 2 can be determined according to the maximum load expected to be borne, and is generally more common in the range of 20mm-50mm. A connecting part 21 is provided at each end of the strut 2 for connecting the prefabricated panels. The connecting part 21 can be fixedly connected to the strut 2 by welding or mechanical fastening. The design of the strut 2 must ensure stability throughout the construction process and can be quickly assembled and unassembled when necessary to facilitate smooth subsequent maintenance work.

[0034] Connecting rod 3 connects support rod 2 and formwork 1. Its length can be adjusted to meet the needs of different heights. The main body of connecting rod 3 is also made of high-strength steel and can be round or square in cross-section. Furthermore, the surface of connecting rod 3 can be coated with an anti-corrosion coating to extend its service life while maintaining good condition.

[0035] Specifically, the connecting portion 21 consists of a collar 211, a support plate 212, and an abutment plate 213. The collar 211 is mounted on the support rod 2. The outer diameter of the collar 211 is slightly larger than the diameter of the support rod 2, so that a certain gap exists between the collar and the support rod 2, allowing the support rod 2 to slide longitudinally within a certain range. The support plate 212 is fixedly connected to the underside of the collar 211 to bear the pressure. The support plate 212 is a flat plate structure. The abutment plate 213 is fixedly installed directly below the support plate 212 and is in contact with the side of the precast panel to enhance the stability of the formwork 1 and the connecting rod 3.

[0036] A sealing rubber ring 7 is installed between the connecting rod 3 and the formwork 1 to effectively prevent concrete leakage. The sealing rubber ring 7 is typically made of a synthetic rubber material with excellent elasticity and wear resistance. Its cross-section is often circular or elliptical, with an inner diameter slightly smaller than the diameter of the connecting rod 3. It is fitted over the surface of the connecting rod 3 with an interference fit and abuts against the formwork 1, achieving a reliable seal.

[0037] This embodiment further adds a design of a pressure rod 6. The pressure rod 6 is arranged on the lower side of the template 1, and is provided with two abutment portions 61, which abut against both sides of the template 1 respectively, and the connecting rod 3 is detachably connected to the pressure rod 6.

[0038] The function of the compression rod 6 is to provide additional support on the underside of the formwork 1, enhancing the stability of the entire system. The compression rod 6 is typically made of high-strength steel and has a curved shape with a straight middle and gradually upward-curving ends, forming two abutment portions 61. This provides better stability and compression on both sides of the formwork 1, preventing deformation caused by pressure from the compression rod 6 on the middle of the formwork 1, thereby enhancing structural stability and improving construction quality.

[0039] The two ends of the pressure rod 6 are bent upward to form abutment parts 61, which are respectively connected to the two sides of the template 1 to strengthen the ability of the entire device to resist external interference. The specific shape of the abutment part 61 can be made into an arc or a straight line.

[0040] The center of the pressure rod 6 is raised upward, forming a groove 62 on its underside. This groove 62 is designed to accommodate the second nut 5, thereby firmly connecting the pressure rod 6 to the formwork 1. The depth and width of the groove 62 must be precisely controlled to ensure that the second nut 5 neither falls onto the surface of the formwork 1 nor protrudes beyond the predetermined limit. The bottom of the groove 62 should ideally have a smooth transition to avoid sharp edges that could cut fingers and other safety hazards.

[0041] An isolation sleeve 8 is also provided on the surface of the connecting rod 3. The isolation sleeve 8 is mainly used to prevent the connecting rod 3 from contacting the concrete, so that the connecting rod 3 can be taken out after the concrete is formed for reuse.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A composite plate joint anti-leakage structure, characterized by: It comprises a template (1), a support rod (2) and a connecting rod (3); The template (1) is placed on the lower layer of the prefabricated panels and abuts against the bottom of the prefabricated panels; both ends of the support rod (2) are provided with connecting portions (21), and both ends of the support rod (2) are connected to the two prefabricated panels via the connecting portions (21); the connecting rod (3) is provided between the two prefabricated panels, and one end of the connecting rod is detachably connected to the support rod (2), and the other end is detachably connected to the template (1).

2. The composite slab joint anti-leakage structure according to claim 1, characterized in that: Both ends of the connecting rod (3) are provided with threaded portions, and the support rod (2) is provided with a first nut (4), one of the threaded portions is screwed to the first nut (4), and the other threaded portion is screwed to a second nut (5), and the second nut (5) is used to connect the template (1).

3. The composite slab joint anti-leakage structure according to claim 1, characterized in that: The connecting portion (21) comprises a collar (211) sleeved on the support rod (2), a support plate (212) fixedly connected to the collar (211), and an abutment plate (213) fixedly connected to the support plate (212); the collar (211) is slidably connected to the support rod (2); the support plate (212) is provided on the lower side of the support rod (2) and is used to abut against the prefabricated plate; the abutment plate (213) is vertically provided on the lower side of the support plate (212) and is used to abut against the side edge of the prefabricated plate.

4. The composite slab joint anti-leakage structure according to claim 2, characterized in that: It also includes a pressure rod (6), which is arranged on the lower side of the template (1). Two abutment parts (61) are provided on the pressure rod (6), and the two abutment parts (61) respectively abut against the two sides of the template (1). The connecting rod (3) and the pressure rod (6) are detachably connected.

5. The composite slab joint anti-leakage structure according to claim 4, characterized in that: Both ends of the pressure rod (6) are tilted upward to form abutment portions (61).

6. The composite slab joint anti-leakage structure according to claim 4, characterized in that: The center position of the pressure rod (6) is raised upward, thereby forming a groove (62) on the lower side of the pressure rod (6), and the second nut (5) is arranged in the groove (62).

7. The composite slab joint anti-leakage structure according to claim 4, characterized in that: A sealing rubber ring (7) is provided between the connecting rod (3) and the template (1).

8. The composite slab joint anti-leakage structure according to claim 4, characterized in that: An isolation sleeve (8) is provided on the surface of the connecting rod (3).

Images