Rubber combined die capable of preventing slurry leakage and controlling extension length of reinforcing steel bar

Abstract

The utility model discloses a rubber combined die capable of preventing slurry leakage and controlling the extension length of a steel bar, and relates to the technical field of fabricated building prefabricated wallboard dies. The vertical strip-shaped holes are formed in the two opposite side edges of the mold frame body side by side and allow stirrups to pass through, the blocking assembly is used for blocking the vertical strip-shaped holes to prevent the vertical strip-shaped holes from leaking slurry, and the length control assembly is used for limiting the extending length of the stirrups and arranged on the mold frame body. The prefabricated part mold containing the plugging assembly and the length control assembly is high in sealing performance during use, concrete slurry is not prone to seeping out, meanwhile, mounting and dismounting are convenient, recycling can be achieved, in addition, after a prefabricated part is demolded, the apparent quality is good, the size of exposed reinforcing steel bars is accurate, the finished product quality of the prefabricated part is effectively improved, and the service life of the mold is effectively prolonged. And popularization and use are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated wall panel mold technology for prefabricated buildings, and more specifically to the field of rubber combination mold technology for preventing grout leakage and controlling the extension length of reinforcing bars. Background Technology

[0002] Precast wall panels are building components that are prefabricated in a factory and then transported to the construction site for assembly. They are widely used in residential, commercial, and industrial buildings. Precast concrete wall panels are classified into solid wall panels, hollow wall panels, and sandwich wall panels. Solid wall panels are integrally cast, offering good sound insulation and fire resistance, and are commonly used for load-bearing walls. Hollow wall panels feature a hollow internal design, reducing weight and cost, and are suitable for non-load-bearing walls. Sandwich wall panels have insulation materials (such as EPS or rock wool) sandwiched between inner and outer concrete layers, combining structural integrity and energy efficiency. Existing patents disclose the following:

[0003] Patent CN115302612A, entitled "A Precast Wall Panel Mold Device," discloses the following: It includes a front template, a rear template, and two side template mechanisms. The fixing seat assembly of the side template mechanism includes a fixing seat base plate and a fixing seat vertical plate, with the vertical plate fixedly connected to the base plate. The vertical plate has several vertically oriented U-shaped slots spaced apart. Several vertical scissor seat plates of the scissor seat assembly are sequentially fixedly connected to the base plate along its length, with a gap between any two adjacent vertical plates. Several positioning slots are provided on the side walls of the vertical scissor seat plates. The area between the base plate and the vertical plates of the fixing seat assembly forms a channel for the reciprocating movement of the scissor seat assembly. The front template, rear template, and two side template mechanisms are sequentially connected, and the space enclosed by these four components forms the pouring area. The beneficial technical effects are: convenient installation of the reinforcing cage, locking the reinforcing bar position with the scissor seat assembly, reduced material waste, and improved overall work efficiency.

[0004] Patent publication number CN106272951A, entitled "A Technology for Precast Concrete Wall Panels Using Combined Molds," discloses the following: The technology includes precasting a reinforcing cage, laying the reinforcing cage, pouring concrete, curing the concrete wall panel, and demolding. Reinforcing cages of the same size as the wall panel are fabricated, and side molds are installed on both sides of the reinforcing cage. The top mold of the combined mold is removed, and the reinforcing cage is laid between the two vertical molds of the combined mold. A card is inserted through the reinforcing cage into the square hole of the side mold to form a pouring space. Concrete is poured into the space formed by the bottom mold and the side molds. After pouring, the top mold is installed. The concrete wall panel is cured using a curing system installed within the vertical mold. After curing, the top mold, vertical molds, and side molds are removed sequentially to obtain a concrete wall panel containing the reinforcing cage. The technology is simple in design, easy to operate, and saves labor, and can be widely applied to precast concrete wall panels using combined molds for concrete boxes.

[0005] The mold disclosed in the aforementioned patent has the defects of not being able to prevent grout leakage from the stirrup protrusion hole and not being able to control the protrusion length of the reinforcing bar. Utility Model Content

[0006] The purpose of this utility model is to provide a rubber combination mold for preventing grout leakage and controlling the extension length of reinforcing bars in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] This utility model provides a rubber combination mold for preventing grout leakage and controlling the extension length of reinforcing bars, including a mold frame, multiple vertical strip holes arranged side by side on two opposite sides of the mold frame that allow stirrups to pass through, a sealing component for sealing each vertical strip hole to prevent grout leakage, and a length control component for limiting the extension length of the stirrups, the length control component being disposed on the mold frame.

[0009] Specifically, this application, by setting a sealing component connected to the mold frame, not only ensures the positioning of the reinforcing bars but also prevents grout leakage at the reinforcing bar holes.

[0010] This solution includes precast component molds with sealing and length control components. During use, the molds provide strong sealing, preventing concrete slurry from seeping out. They are also easy to install and disassemble, and can be reused. In addition, the precast components have good surface quality after demolding, and the exposed steel bars are accurately sized. This effectively improves the quality of the finished precast components and the service life of the molds, making it suitable for widespread use.

[0011] In one embodiment, each sealing component includes a rubber sealing strip adapted to the shape of a vertical strip hole. One side of the rubber sealing strip is provided with a sealing skirt with a width greater than that of the vertical strip hole. The rubber sealing strip is provided with two steel bar holes that allow the upper and lower steel bars of the corresponding stirrup to pass through. The two steel bars pass through the corresponding steel bar holes by interference fit.

[0012] Specifically, the grout-sealing strip has a T-shaped cross-section. Circular holes, matching the protruding reinforcing bars, are provided at both the upper and lower ends of the strip. The material is interrupted at these holes to facilitate the insertion of the reinforcing bars. This further ensures better sealing between the grout-sealing strip and the vertical slots.

[0013] In one embodiment, each rubber plugging strip is sealed to the corresponding vertical strip hole through an interference fit.

[0014] In one embodiment, the mold frame includes a left end mold, a right end mold, a front mold, and a rear mold. The left end mold and the right end mold are symmetrically arranged and have the same structure. The front mold and the rear mold are symmetrically arranged and have the same structure. The left end mold, the right end mold, the front mold, and the rear mold surround a square mold cavity. Vertical strip holes are located on the front mold and the rear mold.

[0015] In one embodiment, the length control assembly includes a front length control unit welded to the outer wall of the front mold and a rear length control unit welded to the outer wall of the rear mold, wherein the front length control unit and the rear length control unit have the same structure.

[0016] In one embodiment, the front length control unit includes at least two length control plates arranged side by side on the outer wall of the front mold, and a limiting rectangular tube fixed on all the length control plates. The length direction of the limiting rectangular tube is consistent with the length direction of the front mold, and the front end of each stirrup contacts the limiting rectangular tube.

[0017] In one embodiment, each length control plate is provided with a U-shaped slot on the top front side for engaging the limiting rectangular tube.

[0018] Specifically, the front mold is equipped with U-shaped slots on the length control plates at both ends, and a limiting rectangular tube is placed in the U-shaped slot to facilitate the control of the exposed length of the reinforcing bars when they are put into the mold.

[0019] In one embodiment, the system further includes a front clamping assembly for clamping each sealing assembly onto the front mold and a rear clamping assembly for clamping each sealing assembly onto the rear mold, the front clamping assembly and the rear clamping assembly having the same structure.

[0020] In one embodiment, the front clamping assembly includes a front grouting support reinforcement that is in close contact with the outside of all sealing assemblies located on the front mold.

[0021] In one embodiment, each front length control plate is provided with a guide groove on the top rear side for slidingly inserting the front grouting support steel bar.

[0022] Specifically, supporting steel bars are installed on the outside to secure the sealing component, which is convenient and quick, and further improves the grout-proof effect of the sealing component. During formwork assembly, the sealing component strips are assembled first, and then the supporting steel bars are inserted into the guide groove and slid into the small holes of the guide groove. The supporting steel bars effectively prevent the sealing component from expanding out of the side formwork (front or rear side formwork) after the concrete is poured.

[0023] To ensure the overall rigidity of the mold, the side mold is equipped with reinforcing ribs spaced 500mm apart. The reinforcing ribs are equipped with weight-reducing holes and guide grooves that allow the supporting steel bars to pass through (the guide grooves of the reinforcing ribs are the same as those of the guide grooves on the length control plate).

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. This utility model, by setting a sealing component connected to the mold frame, not only ensures the positioning of the reinforcing bars but also prevents grout leakage at the reinforcing bar hole.

[0026] 2. The precast component mold of this utility model, which includes a sealing component and a length control component, has strong sealing performance during use, making it difficult for concrete slurry to seep out. It is also easy to install and disassemble, and can be reused. In addition, the surface quality of the precast component after demolding is good, and the exposed steel bars are accurately sized, which effectively improves the quality of the finished precast component and the service life of the mold, making it suitable for widespread use.

[0027] 3. The grout-sealing strip has a T-shaped cross-section. Circular holes, matching the protruding reinforcing bars, are provided at both the upper and lower ends of the strip. The material is interrupted at these holes to facilitate easy insertion of the reinforcing bars. This further ensures better sealing between the grout-sealing rubber strip and the vertical slotted holes. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of a partial structure;

[0031] Figure 3 This is a schematic diagram of the front length control plate;

[0032] Figure 4 This is a schematic diagram of the sealing component;

[0033] Reference numerals: 1. Left end mold; 2. Rear side mold; 3. Right end mold; 4. Stirrup; 5. Reinforcing rib; 6. Sealing component; 7. Front length control plate; 8. Front side mold; 9. Front grouting support reinforcement; 10. Limiting rectangular tube; 61. Grouting strip; 62. Sealing skirt; 63. Reinforcing bar hole; 71. U-shaped groove; 72. Guide groove. Detailed Implementation

[0034] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Example 1

[0039] like Figures 1 to 4 As shown in the figure, this embodiment provides a rubber combination mold for preventing grout leakage and controlling the extension length of reinforcing bars, including a mold frame, multiple vertical strip holes arranged side by side on two opposite sides of the mold frame and allowing the stirrups 4 to pass through, a sealing component 6 for sealing each vertical strip hole to prevent grout leakage, and a length control component for limiting the extension length of the stirrups 4, the length control component being disposed on the mold frame.

[0040] Specifically, this application, by setting a sealing component 6 connected to the mold frame, not only ensures the positioning of the reinforcing bars but also prevents grout leakage at the reinforcing bar hole location.

[0041] This solution includes a precast component mold containing a sealing component 6 and a length control component. It provides strong sealing during use, preventing concrete slurry from seeping out. It is also easy to install and disassemble, and can be reused. In addition, the surface quality of the precast component after demolding is good, and the exposed steel bars are accurately sized. This effectively improves the quality of the finished precast component and the service life of the mold, making it suitable for widespread use.

[0042] Example 2

[0043] like Figures 1 to 4 As shown in the figure, this embodiment provides a rubber combination mold for preventing grout leakage and controlling the extension length of reinforcing bars, including a mold frame, multiple vertical strip holes arranged side by side on two opposite sides of the mold frame and allowing the stirrups 4 to pass through, a sealing component 6 for sealing each vertical strip hole to prevent grout leakage, and a length control component for limiting the extension length of the stirrups 4, the length control component being disposed on the mold frame.

[0044] Each sealing component 6 includes a rubber sealing strip 61 adapted to the shape of the vertical strip hole. One side of the rubber sealing strip 61 is provided with a sealing skirt 62 with a width greater than that of the vertical strip hole. The rubber sealing strip 61 is provided with two steel bar holes 63 that allow the upper and lower steel bars of the corresponding stirrup 4 to pass through. The two steel bars pass through the corresponding steel bar holes 63 by interference fit.

[0045] Each rubber plugging strip 61 is sealed to the corresponding vertical strip hole through an interference fit.

[0046] Specifically, the grout-sealing strip 61 has a T-shaped cross-section. Circular holes, directly matching the protruding reinforcing bars, are provided at the upper and lower ends of the strip. The material is interrupted at the circular holes to facilitate the insertion of the reinforcing bars. This further ensures better sealing between the grout-sealing strip and the vertical slot.

[0047] Example 3

[0048] This embodiment is a further optimization based on embodiment 2, specifically:

[0049] The mold frame includes a left mold 1, a right mold 3, a front mold 8, and a rear mold 2. The left mold 1 and the right mold 3 are symmetrically arranged and have the same structure. The front mold 8 and the rear mold 2 are symmetrically arranged and have the same structure. The left mold 1, the right mold 3, the front mold 8, and the rear mold 2 enclose a square mold cavity. Vertical strip holes are located on the front mold 8 and the rear mold 2.

[0050] The length control assembly includes a front length control unit welded to the outer wall of the front mold 8 and a rear length control unit welded to the outer wall of the rear mold 2. The front length control unit and the rear length control unit have the same structure.

[0051] The front length control unit includes at least two length control plates arranged side by side on the outer wall of the front mold 8, and a limiting rectangular tube 10 fixed on all the length control plates. The length direction of the limiting rectangular tube 10 is consistent with the length direction of the front mold 8, and the front end of each stirrup 4 is in contact with the limiting rectangular tube 10.

[0052] Each length control plate has a U-shaped slot 71 on the top front side for engaging the limiting rectangular tube 10.

[0053] Specifically, the front mold 8 has U-shaped slots 71 set on the length control plates at both ends. A limiting rectangular tube 10 is placed in the U-shaped slot 71 to facilitate the control of the exposed length of the reinforcing bar when it is put into the mold.

[0054] Example 5

[0055] This embodiment is a further optimization based on embodiment 3, specifically:

[0056] It also includes a front pressing assembly for pressing each sealing assembly 6 on the front mold 8 and a rear pressing assembly for pressing each sealing assembly 6 on the rear mold 2, the front pressing assembly and the rear pressing assembly having the same structure.

[0057] The front clamping assembly includes a front grouting support steel bar 9, which is in close contact with the outside of all the sealing components 6 located on the front mold 8.

[0058] Each front length control plate 7 is provided with a guide groove 72 on the top rear side for sliding insertion of the front grouting support steel bar 9.

[0059] Specifically, the supporting steel bars are set up to be tightly fixed to the sealing component 6 on the outside, which is convenient and quick, and further improves the grout-proof effect of the sealing component 6. When assembling the formwork, the sealing component 6 is assembled first, and then the supporting steel bars are inserted into the guide groove 72 and slid into the small hole of the guide groove 72. The supporting steel bars effectively prevent the sealing component 6 from expanding out of the side formwork (front side formwork 8 or rear side formwork 2) after the concrete is poured.

[0060] To ensure the overall rigidity of the mold, the side mold is equipped with reinforcing ribs 5 at 500mm intervals. The reinforcing ribs 5 are provided with weight reduction holes and guide grooves 72 that allow the supporting steel bars to pass through (the guide grooves 72 of the reinforcing ribs 5 are the same as the guide grooves 72 on the length control plate).

Claims

1. A rubber combination mold for preventing grout leakage and controlling the extension length of reinforcing bars, characterized in that, The mold frame body includes a mold frame body, a plurality of vertical strip-shaped holes arranged side by side on the opposite two sides of the mold frame body and allowing the stirrup (4) to pass through, a plugging assembly (6) for plugging each vertical strip-shaped hole to prevent it from leaking, and a length control assembly for limiting the length of the stirrup (4) to extend.

2. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 1, wherein Each of the plugging assemblies (6) includes a rubber plugging rubber strip (61) matched with the shape of the vertical strip-shaped hole, one side of the rubber plugging rubber strip (61) is provided with a sealing skirt (62) with a width greater than that of the vertical strip-shaped hole, and the rubber plugging rubber strip (61) is provided with two steel bar holes (63) allowing the upper and lower two steel bars corresponding to the stirrup (4) to pass through, and the two steel bars pass through the corresponding steel bar holes (63) in the form of interference fit.

3. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 2, wherein Each of the rubber plugging rubber strips (61) is sealed with the corresponding vertical strip-shaped hole in the form of interference fit.

4. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 3, wherein The mold frame body includes a left end mold (1), a right end mold (3), a front side mold (8), and a rear side mold (2), the left end mold (1) and the right end mold (3) are symmetrically arranged and have the same structure, the front side mold (8) and the rear side mold (2) are symmetrically arranged and have the same structure, and the left end mold (1), the right end mold (3), the front side mold (8), and the rear side mold (2) surround a square mold cavity. The vertical strip-shaped holes are located on the front side mold (8) and the rear side mold (2).

5. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 4, wherein The length control assembly includes a front side length control unit welded on the outer wall of the front side mold (8) and a rear side length control unit welded on the outer wall of the rear side mold (2), and the front side length control unit and the rear side length control unit have the same structure.

6. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 5, wherein The front side length control unit includes at least two length control plates arranged side by side on the outer wall of the front side mold (8), and a limiting rectangular tube (10) fixed on all the length control plates, the length direction of the limiting rectangular tube (10) is consistent with the length direction of the front side mold (8), and the front end of each stirrup (4) is in contact with the limiting rectangular tube (10).

7. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 6, wherein Each of the length control plates is provided with a U-shaped clamping groove (71) on the top front side for clamping the limiting rectangular tube (10).

8. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 6, wherein It also includes a front side pressing assembly for pressing each of the plugging assemblies (6) on the front side mold (8) and a rear side pressing assembly for pressing each of the plugging assemblies (6) on the rear side mold (2), and the front side pressing assembly and the rear side pressing assembly have the same structure.

9. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 8, wherein The front side pressing assembly includes a front plugging support steel bar (9) which is in close contact with the outer side of all the plugging assemblies (6) located on the front side mold (8).

10. The rubber combined mold for preventing slurry leakage and controlling reinforcement extension length according to claim 9, wherein Each of the length control plates is provided with a guide sliding groove (72) on the top rear side for slidingly inserting the plugging support steel bar.

Images