A prefabricated mould for an assembled parapet for bridges

Abstract

The utility model discloses a prefabricated mould of assembled guardrail suitable for bridge relates to assembled concrete guardrail technical field, and the prefabricated mould is including base and two independent baffle, and the base middle position is fixedly installed with the outside mould through the connecting seat, and the both sides of connecting seat all are rotatably connected with the inside mould through the side rotary seat, and the inside mould top is detachably connected with the comb baffle, and the front and rear end of connecting seat all are rotatably connected with the end mould through the front rotary seat, every side of outside mould all is adapted with the outside of guardrail body, and every side of outside mould and the inside mould of this side, comb baffle, connecting seat, end mould form a pouring space, and the independent baffle is placed in the top of the first pouring part of pouring space, is used for continuing to pour the drip eaves.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated concrete guardrail technology, and in particular to a prefabricated mold for prefabricated guardrails suitable for bridges. Background Technology

[0002] Concrete guardrails are important safety protection structures, installed on the outer side of the driving lane or in the central divider. They have the functions of blocking, buffering and guiding out-of-control vehicles, absorbing the energy of vehicle collisions and reducing the degree of injury to occupants.

[0003] Currently, prefabricated concrete guardrails are widely used in bridge engineering due to their fast construction speed, high standardization, and minimal impact on on-site traffic. The prefabrication quality of the guardrails directly affects the overall efficiency, cost, and final appearance of the project, all of which largely depend on the performance of the prefabrication molds. However, traditional guardrail prefabrication molds still have several shortcomings in structural design and practical use that urgently need improvement: 1. Low production efficiency: Many traditional molds are produced in a single-piece production mode, meaning that a set of molds can only produce one guardrail component at a time. This mode is difficult to meet the needs of large-scale bridge projects with large quantities of guardrail components and tight schedules, resulting in low utilization of prefabrication sites and relatively high production costs.

[0004] 2. Difficult demolding and easily damaged components: For railings with complex facades, concave structures or bottom drip edges, traditional integral or simple assembly molds are very likely to cause bumps and damage to concrete components during demolding.

[0005] 3. Poor molding effect of complex structures: The drip edge and other cantilever structures at the bottom of the guardrail are located at the bottom of the mold during vertical prefabrication. Air bubbles and voids are easily generated during concrete pouring and vibration, making it difficult to guarantee the density. If designed as a single mold, this part is very easy to get stuck and damaged during demolding. Utility Model Content

[0006] In view of this, the present invention provides a prefabricated mold for assembled guardrails suitable for bridges, adopting the following technical solution: A prefabricated mold for a prefabricated guardrail suitable for bridges includes a base and two independent baffles. An outer mold is fixedly installed in the middle of the base via a connecting seat. Inner molds are rotatably connected to both sides of the connecting seat via side rotating seats. A comb-shaped baffle is detachably connected to the top of the inner mold. End molds are rotatably connected to the front and rear ends of the connecting seat via front rotating seats. Each side of the outer mold is adapted to the outer side of the guardrail body; each side of the outer mold, together with the inner mold, comb-shaped baffle, connecting seat, and end mold on that side, forms a casting space; The independent baffle is placed on top of the first pouring section completed in the pouring space to continue pouring the drip edge.

[0007] Furthermore, the end mold is provided with a positioning hole that matches the reserved channel, and a pre-embedded tube is inserted into the positioning hole.

[0008] Furthermore, the base is provided with first support plates on both sides for supporting the inner mold when it is rotated to the maximum angle; the base is provided with second support plates at both the front and rear ends for supporting the end mold when it is rotated to the maximum angle.

[0009] Furthermore, the maximum rotation angle of the inner mold is 45°, and the maximum rotation angle of the end mold is 90°.

[0010] Furthermore, the top of the inner mold is connected to the comb-shaped baffle by bolts.

[0011] Furthermore, the outer mold, the inner mold, the comb-shaped baffle, the end mold, and the independent baffle are all hollow and have longitudinal and vertical stiffening ribs inside.

[0012] The beneficial effects of this utility model are as follows: In this utility model, two casting spaces are formed inside the precast mold, and a "twin" manufacturing process is adopted, with two pieces in one set, doubling the production efficiency; This utility model enables inverted prefabrication, ensuring that the outer surface of the guardrail body is smooth and beautiful, without the need for secondary repairs; This utility model solves the difficulty of pouring the drip edge at the bottom of the guardrail by adopting a sectional casting method; In this invention, the inner mold and the end mold are rotatable, and the comb-shaped baffle is detachable, making demolding easy. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a side view of the precast mold of this utility model in the mold-closed state.

[0015] Figure 2 yes Figure 1 Sectional view at point AA.

[0016] Figure 3 This is a side view of the precast mold of this utility model in the demolding state.

[0017] Figure 4 yes Figure 3 Sectional view at point BB.

[0018] Figure 5 This is a front view of the mid-end mold of this utility model.

[0019] Figure 6 This is a top view of the comb-shaped baffle in this utility model.

[0020] In the figure: 41-Base; 42-Connecting seat; 421-Side rotating seat; 422-Front rotating seat; 43-First support plate; 44-Second support plate; 45-Outer mold; 5-Inner mold; 6-Comb baffle; 7-Independent baffle; 8-End mold; 81-Positioning hole; 9-Embedded pipe. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or components is not necessarily limited to those steps or components explicitly listed, but may include other steps or components not explicitly listed or inherent to such processes, methods, products, or devices.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] See appendix Figure 1-6 This utility model discloses a prefabricated mold for a prefabricated guardrail suitable for bridges, including a base 41 and two independent baffles 7. An outer mold 45 is fixedly installed in the middle of the base 41 through a connecting seat 42. An inner mold 5 is rotatably connected to both sides of the connecting seat 42 through a side rotating seat 421. A comb-shaped baffle 6 is detachably connected to the top of the inner mold 5. An end mold 8 is rotatably connected to both the front and rear ends of the connecting seat 42 through a front rotating seat 422. Each side of the outer mold 45 is adapted to the outer side of the guardrail body 1; each side of the outer mold 45 forms a casting space with the inner mold 5, comb baffle 6, connecting seat 42 and end mold 8 on that side; An independent baffle 7 is placed on top of the first pouring section completed within the pouring space to continue pouring the drip edge.

[0027] In this embodiment, two casting spaces are formed inside the precast mold, and a "twin" manufacturing process is adopted, with two pieces in one set, doubling the production efficiency; inverted precasting can be achieved, ensuring that the outer surface of the guardrail body is smooth and beautiful, without the need for secondary repair; the sectional casting method solves the difficulty of casting the drip edge at the bottom of the guardrail; the inner mold 5 and the end mold 8 can be rotated, and the comb-shaped baffle 6 can be disassembled, making demolding easy.

[0028] The end mold 8 is provided with a positioning hole 81 that matches the reserved channel 14, and a pre-embedded pipe 9 is inserted into the positioning hole 81.

[0029] The base 41 has a first support plate 43 on both sides to support the inner mold 5 when it is rotated to the maximum angle; the base 41 has a second support plate 44 at both the front and rear ends to support the end mold 8 when it is rotated to the maximum angle.

[0030] The maximum rotation angle of the inner mold 5 is 45°, and the maximum rotation angle of the end mold 8 is 90°.

[0031] The top of the inner mold 5 is connected to the comb-shaped baffle 6 by bolts.

[0032] The outer mold 45, inner mold 5, comb-shaped baffle 6, end mold 8, and independent baffle 7 are all hollow and have longitudinal and vertical stiffening ribs inside.

[0033] A prefabrication method for assembled guardrails suitable for bridges specifically includes the following steps: S1: According to the prefabricated guardrail design drawing, make a steel reinforcement skeleton, hoist the made steel reinforcement skeleton into the mold, insert the pre-embedded pipe 9 into the positioning hole 81, install the comb baffle 6, and carry out the first pouring in the formed pouring space. S2: Before the initial setting of the first pouring section, install an independent baffle 7 on its top and pour the drip edge; S3: After the concrete has initially set, pull out the embedded pipe 9 in time to form the reserved channel 14. S4: When the concrete strength reaches 80% of the design strength, remove the independent baffle 7, rotate the two inner molds 5 to the sides respectively, rotate the two end molds 8 to the front and rear ends respectively, and demold.

[0034] In step S4, after demolding, the concrete is cured and then moved to a designated storage area.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A prefabrication mold for assembled guardrails suitable for bridges, characterized in that, Includes a base (41) and two independent baffles (7). An outer mold (45) is fixedly installed in the middle of the base (41) through a connecting seat (42). An inner mold (5) is rotatably connected to both sides of the connecting seat (42) through a side rotating seat (421). A comb-shaped baffle (6) is detachably connected to the top of the inner mold (5). An end mold (8) is rotatably connected to both the front and rear ends of the connecting seat (42) through a front rotating seat (422). Each side of the outer mold (45) is adapted to the outer side of the guardrail body (1); each side of the outer mold (45) forms a casting space with the inner mold (5), comb baffle (6), connecting seat (42), and end mold (8) on that side; The independent baffle (7) is placed on top of the first pouring section completed in the pouring space for continuing to pour the drip edge.

2. The prefabrication mold for a prefabricated guardrail suitable for bridges according to claim 1, characterized in that, The end mold (8) is provided with a positioning hole (81) that is compatible with the reserved channel (14), and a pre-embedded tube (9) is inserted into the positioning hole (81).

3. The prefabrication mold for a prefabricated guardrail suitable for bridges according to claim 1, characterized in that, The base (41) is provided with first support plates (43) on both sides for supporting the inner mold (5) when it is rotated to the maximum angle; the base (41) is provided with second support plates (44) at both the front and rear ends for supporting the end mold (8) when it is rotated to the maximum angle.

4. A prefabrication mold for a prefabricated guardrail suitable for bridges according to claim 3, characterized in that, The maximum rotation angle of the inner mold (5) is 45°, and the maximum rotation angle of the end mold (8) is 90°.

5. A prefabrication mold for a prefabricated guardrail suitable for bridges according to claim 1, characterized in that, The top of the inner mold (5) is connected to the comb-shaped baffle (6) by bolts.

6. A prefabrication mold for a prefabricated guardrail suitable for bridges according to claim 1, characterized in that, The outer mold (45), the inner mold (5), the comb-shaped baffle (6), the end mold (8), and the independent baffle (7) are all hollow and have longitudinal and vertical stiffening ribs inside.

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