A fabricated guardrail form

Abstract

The utility model relates to the technical field of building construction, concretely is a kind of assembly type guardrail form, including bottom die, the long side of bottom die rotatably installs side mould, short side rotatably installs end mould, at least one group of die cavity is formed in bottom die, side mould and end mould, the position of several locking support assemblies can be detachably installed in the die cavity of end mould, locking support assembly is located in end mould inside for installing positioning pipe.The assembly type guardrail form, by install detachable locking support assembly on end mould, locking support assembly can be installed on end mould first and die is closed, then positioning pipe is installed in the inner end of locking support assembly from reinforcement cage;When formwork is dismantled, locking support assembly is first removed, then side mould and end mould can be dismantled, and the installation of positioning pipe and formwork dismantling problem can be solved by this mode.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a prefabricated guardrail template. Background Technology

[0002] In the construction of infrastructure such as roads and bridges, concrete guardrails are a crucial structure for ensuring traffic safety, and their installation quality directly affects the overall safety and stability of the project. During the fabrication of concrete guardrails, reinforcing cages are typically placed inside the molds to enhance the structural strength of the guardrails. Positioning tubes are also installed to create openings on both sides of the guardrail. During construction, these tubes are inserted into the connecting holes after the guardrails have been formed, fixing adjacent groups of guardrails together as a single unit, thereby improving the guardrail's impact resistance and structural integrity.

[0003] Traditionally, positioning tubes are fixed by tying them to the guardrail reinforcement cage or fixing them to the end formwork. In the use of prefabricated guardrail formwork, the reinforcement cage needs to be placed and the positioning tubes fixed. However, the traditional method of fixing positioning tubes has problems: when the end formwork is opened, it is fixed, but when it is closed, the reinforcement cage may interfere with the positioning tube. If the end formwork is closed first and then the positioning tube is installed from inside the reinforcement cage on the inner wall of the end formwork, it is slow, troublesome and unstable. The positioning tube is prone to displacement, which leads to misalignment of the connection holes and affects the connection of the tube body. At the same time, the positioning tube is inconvenient to disassemble and assemble and is also easily displaced by the impact of concrete, which affects the installation quality of the guardrail. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated guardrail template, including a bottom mold, a side mold rotatably mounted on the long side of the bottom mold, and an end mold rotatably mounted on the short side. At least one set of mold cavities is formed in the bottom mold, the side mold, and the end mold. Several locking support components are detachably mounted on the end mold opposite the mold cavity. The locking support components are located inside the end mold and are used to install positioning tubes.

[0005] Furthermore, a fixing plate is locked onto the end mold, and the locking support assembly is installed on the fixing plate.

[0006] Furthermore, the end mold has a positioning hole opposite to the mold cavity, and the inner side of the fixing plate has a protrusion that matches the positioning hole. The locking support assembly passes through the fixing plate and the protrusion and is locked on the fixing plate.

[0007] Furthermore, the top of the side mold is provided with multiple sets of top plates, and each set of top plates is also detachably equipped with a locking support component facing each set of mold cavities.

[0008] Furthermore, the locking support component is an expansion sleeve component.

[0009] Furthermore, the expansion sleeve assembly includes a sleeve, on which a locking component is provided, the locking component being used to push against the inner wall of the positioning tube.

[0010] Furthermore, the locking assembly includes a cone block movably disposed inside the sleeve, and a plurality of top posts that are limited and pass through the sleeve. The top posts contact the inclined surface of the cone block, and a locking rod with a pull is provided between the cone block and the sleeve.

[0011] Furthermore, the sleeve is a T-shaped sleeve.

[0012] Furthermore, two sets of protrusions are formed at both ends of the top plate, and multiple pairs of limiting blocks that are adapted to the corresponding two sets of protrusions are formed on the top of the side mold.

[0013] Furthermore, an opening is provided on the outer side of the convex cylinder.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This prefabricated guardrail formwork uses a detachable locking support component installed on the end formwork. The locking support component can be installed on the end formwork first and the formwork closed. Then, the positioning pipe is installed from inside the rebar cage into the inner end of the locking support component. When dismantling the formwork, the locking support component is removed first, and then the side formwork and end formwork can be dismantled. This method can effectively solve the problems of installing the positioning pipe and dismantling the formwork.

[0016] In addition, in the preferred structure, the positioning holes allow the fixing plate to be accurately installed in the designated position, while the through holes on the fixing plate also allow the locking support component to be installed in the accurate position, avoiding displacement that could affect the locking of the positioning tube. Furthermore, the locking support component can be an expansion sleeve component with a locking component on the sleeve. After the mold is closed, the positioning tube is fitted onto the sleeve, and by operating the locking component, the inner wall of the positioning tube is pushed, further fixing the positioning tube. This reduces the construction difficulty, ensures that the positioning tube does not shift during the pouring process, guarantees the accurate position of the connection hole, and improves the docking accuracy during guardrail installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the fixing plate connection structure in this utility model;

[0020] Figure 4 This utility model Figure 3 A three-dimensional structural diagram with the positioning tube removed;

[0021] Figure 5 This is a three-dimensional schematic diagram of the top plate connection structure in this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the present invention with the central top plate removed;

[0023] Figure 7 This is a three-dimensional structural diagram of the concrete guardrail in this utility model.

[0024] In the diagram: 1. Side mold; 2. Mold cavity; 3. End mold; 4. Fixing plate; 5. Protruding plate; 6. Sleeve; 7. Conical block; 8. Locking rod; 9. Top column; 10. Positioning tube; 11. Top plate; 12. Protruding cylinder; 13. Opening; 14. Limiting block; 15. Concrete guardrail. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-7 In this embodiment, a prefabricated guardrail template includes a bottom mold, a side mold 1 rotatably mounted on the long side of the bottom mold, and an end mold 3 rotatably mounted on the short side. At least one set of mold cavities 2 are formed in the bottom mold, the side mold 1, and the end mold 3. The mold cavities 2 can form concrete guardrails 15. The side mold 1 and the end mold 3 are locked together by bolts when the molds are closed. Several locking support components are detachably installed on the end mold 3 opposite the mold cavity 2. The locking support components are located inside the end mold 3 and are used to install positioning tubes 10.

[0027] In the above structure, the locking support component acts directly on the positioning tube, precisely controlling its position within the mold cavity through mechanical limiting. This prevents the positioning tube from shifting due to external forces such as concrete impact and vibration during pouring. Furthermore, it features a detachable design, allowing for flexible adjustment based on the diameter, number, and installation position of the positioning tubes. If different specifications of positioning tubes need to be replaced, only the corresponding size support component needs to be replaced, without modifying the end mold body. In use, the locking support component can be installed on the end mold and the mold closed first. Then, the positioning tube is installed from inside the rebar cage into the inner end of the locking support component. During demolding, the locking support component is removed first, followed by the removal of the side and end molds. This method effectively solves the problems of positioning tube installation and demolding.

[0028] As a preferred structure, a fixing plate 4 is locked onto the end mold 3, and the locking support assembly is installed on the fixing plate 4. The end mold can be matched with fixing plates of different specifications, and different types and quantities of locking support assemblies can be installed on the fixing plate as needed. By simply replacing the corresponding fixing plate and adapting it to different models of locking support assemblies, the installation requirements of different positioning tubes can be met without adjusting the end mold itself. Furthermore, during disassembly, the fixing plate can be directly removed, and the locking support assembly can also be disassembled together, avoiding the need to disassemble the locking support assemblies one by one.

[0029] Further explanation: the end mold 3 has a positioning hole opposite to the mold cavity 2. A protruding plate 5 matching the positioning hole is fixed to the side of the fixing plate 4 opposite to the mold cavity 2. The locking support assembly passes through the fixing plate 4 and the protruding plate 5 and is locked onto the fixing plate 4. The positioning hole of the end mold and the protruding plate of the fixing plate form a fit, enabling quick and accurate alignment during the installation of the fixing plate and preventing the locking support assembly from shifting due to manual installation deviations.

[0030] This positioning method ensures that the relative position of the fixing plate and the end mold is fixed, thereby ensuring that the axis of the locking support component is completely consistent with the design axis of the mold cavity. This reduces the installation error of the positioning tube from the source. When installing the fixing plate, there is no need to repeatedly measure and adjust the position. Simply align the convex plate with the positioning hole and insert it to complete the initial positioning. Then, tighten the fixing plate with bolts. This greatly reduces the time and physical effort required for manual alignment.

[0031] In addition, the top of the side mold 1 is provided with multiple sets of top plates 11, and each set of top plates 11 is also detachably mounted with a locking support assembly opposite to each set of mold cavities 2. The positioning tube can be positioned by the locking support assembly, so as to reserve a connection hole at the top of the guardrail in the template.

[0032] Further explanation: During use, the positioning tube needs to be inserted into the inner end of the locking support assembly. The inner diameter of the positioning tube matches the outer diameter of the locking support assembly. To ensure stability, the positioning tube can be further fixed. Specifically, the locking support assembly is an expansion sleeve assembly. This embodiment does not limit the specific form; for example, the expansion sleeve assembly can be an expansion bolt assembly, a set screw assembly, or an elastic expansion sleeve assembly. After inserting the positioning tube, the expansion sleeve assembly is operated to tighten against the inner wall of the positioning tube, completing the locking. Only external operation is required, making this method simple to operate.

[0033] As a specific structure, the expansion sleeve assembly includes a sleeve 6 extending into the corresponding mold cavity 2 between the fixed plate 4 and the protruding plate 5. The sleeve 6 is locked to the fixed plate 4 by screws. The sleeve 6 is a T-shaped sleeve. The sleeve 6 is provided with a locking assembly for pushing the inner wall of the positioning tube 10. The locking assembly includes a cone block 7 movably disposed inside the sleeve 6 and at least three top posts 9 that are limited and pass through the sleeve 6. The top posts 9 contact the inclined surface of the cone block 7. A locking rod 8 is provided between the cone block 7 and the sleeve 6 for counter-pull. In the figure, one end of the locking rod 8 is fixed to the sleeve 6 by a pair of inner nuts, while the other end of the locking rod 8 is locked with an outer nut. When the outer nut is rotated, the cone block moves axially inward, and its inclined surface pushes the top posts to expand radially, thereby pushing the inner wall of the positioning tube. This design allows multiple top columns to be driven simultaneously by tightening the outer nut of a single locking rod. It is easy to operate and provides uniform expansion force. With at least three top columns, it forms a stable multi-contact support structure, which is less prone to wobbling compared to two-point support and can precisely control the axial position of the positioning tube.

[0034] Further explanation: two sets of protruding cylinders 12 are formed at both ends of the top plate 11, and multiple pairs of limiting blocks 14 adapted to the corresponding two sets of protruding cylinders 12 are formed on the top of the side mold 1. An opening 13 is provided on the protruding cylinder 12. This opening allows observation of whether the limiting block is inserted into the protruding cylinder in place, and the limiting block plays a restraining role. At the same time, the opening can also provide an external hook to extend into the opening to lift and separate it.

[0035] The working principle of the above embodiments is as follows:

[0036] First, the bottom mold and side mold are joined together, and the rebar cage is placed into the mold cavity. The convex plate is embedded into the positioning hole of the end mold and locked by the fixing plate screws to ensure that the sleeve is accurately aligned with the preset position in the mold cavity. Then, the end mold and side mold are joined together and fixed by the lock. After the positioning tube is sleeved on the outside of the sleeve, it is fixed by operating from the outside through the locking component. When the outer nut is tightened, the cone block moves axially to squeeze the top column, making it radially press against the inner wall of the positioning tube to form a rigid fixation. It can be disassembled by unscrewing in the opposite direction without manual entry into the mold cavity. The positioning tube can also be positioned by installing the sleeve on the top plate and its locking component. The convex cylinder cooperates with the limiting block on the top of the side mold to achieve quick positioning. The opening is used to observe the embedding status and provide a lifting and separation point. The sleeve and positioning tube on the top plate use the same locking component as the end mold to ensure the positional accuracy of the top connection hole. The rigid support provided by the locking component ensures that the positioning tube does not shift under the impact of concrete and ensures the forming accuracy of the connection hole.

[0037] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0038] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated guardrail template, comprising a bottom mold, a side mold (1) rotatably mounted on the long side of the bottom mold, and an end mold (3) rotatably mounted on the short side, wherein at least one set of mold cavities (2) is formed within the bottom mold, the side mold (1), and the end mold (3), characterized in that: The end mold (3) is detachably installed with several locking support components at the position opposite the mold cavity (2). The locking support components are located inside the end mold (3) and are used to install the positioning tube (10).

2. The prefabricated guardrail template according to claim 1, characterized in that: A fixing plate (4) is locked onto the end mold (3), and the locking support assembly is installed on the fixing plate (4).

3. The prefabricated guardrail template according to claim 2, characterized in that: The end mold (3) has a positioning hole opposite to the mold cavity (2), and the inner side of the fixing plate (4) has a protrusion (5) that matches the positioning hole. The locking support assembly passes through the fixing plate (4) and the protrusion (5) and is locked on the fixing plate (4).

4. A prefabricated guardrail template according to claim 3, characterized in that: The top of the side mold (1) is provided with multiple sets of top plates (11), and each set of top plates (11) is detachably installed with a locking support assembly facing each set of mold cavities (2).

5. A prefabricated guardrail template according to claim 4, characterized in that: The locking support component is an expansion sleeve component.

6. A prefabricated guardrail template according to claim 5, characterized in that: The expansion sleeve assembly includes a sleeve (6), on which a locking component is provided, which is used to push against the inner wall of the positioning tube (10).

7. A prefabricated guardrail template according to claim 6, characterized in that: The locking assembly includes a cone (7) movably disposed inside the sleeve (6) and a plurality of top posts (9) that are limited and pass through the sleeve (6). The top posts (9) contact the inclined surface of the cone (7), and a locking rod (8) is provided between the cone (7) and the sleeve (6).

8. A prefabricated guardrail template according to claim 7, characterized in that: The sleeve (6) is a T-shaped sleeve.

9. A prefabricated guardrail template according to claim 4, characterized in that: Two sets of protrusions (12) are formed at both ends of the top plate (11), and multiple pairs of limiting blocks (14) are formed on the top of the side mold (1) to match the corresponding two sets of protrusions (12).

10. A prefabricated guardrail template according to claim 9, characterized in that: An opening (13) is provided on the outer side of the protrusion (12).

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