Concrete cable trench prefabricating mold

Abstract

The utility model discloses a concrete cable trench prefabricating mold which comprises an inverted concave inner mold and an inverted concave outer mold, a bottom plate is arranged at the bottom of the inner mold, and the outer mold is composed of two side mold plates which are symmetrical to the two sides of the inner mold and two inverted concave end mold plates which are symmetrical to the front end and the rear end of the inner mold. The side templates are movably contacted with the end templates, concrete is poured in a space formed between the inner mold and the two side templates and between the inner mold and the two end templates, lips are arranged on the periphery of the bottom plate, the two side templates and the two end templates are respectively connected with the corresponding lips through hinges, and the bottoms of the two sides of the inner mold are in a step shape. According to the mold, the four side mold plates of the outer mold body are all connected with the bottom plate at the bottom of the inner mold body in a hinged mode, when the outer mold body is closed, only the four side mold plates need to be turned upwards, splicing is easy, fast and accurate, the two side mold plates are provided with the protrusions, the round rods penetrate through the protrusions, and therefore a formed prefabricated part has stress points during hoisting or carrying.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete technology, specifically a precast mold for concrete cable trenches. Background Technology

[0002] When cables are buried underground, trenches are usually dug in advance and then concrete is poured inside. To save time, precast concrete cable trenches are now used. When laying cables, only a trench needs to be dug underground, and then the precast cable trench can be placed directly in. Concrete cable trenches are generally made by pouring concrete using molds. The current molds are divided into inner molds and outer molds. The outer mold consists of four side templates. Before pouring, the four side templates are assembled and spliced ​​in sequence. This process takes a long time. If the splicing is not aligned, it will cause defects at the corners of the formed precast concrete cable trench.

[0003] Therefore, in order to correct the above-mentioned defects, we propose a precast mold for concrete cable trenches. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a precast mold for concrete cable trenches.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast concrete cable trench mold, comprising an inverted U-shaped inner mold and an outer mold. The bottom of the inner mold has a base plate. The outer mold consists of two symmetrical side templates on both sides of the inner mold and two symmetrical inverted U-shaped end templates at the front and rear ends of the inner mold. The side templates and end templates are in movable contact. Concrete is poured into the space formed between the inner mold and the two side templates and the two end templates. The base plate has lips around its perimeter. The two side templates and the two end templates are respectively connected to their corresponding lips by hinges. The bottom sides of the inner mold are stepped.

[0006] Furthermore, a diagonal brace is installed on the upper end of the lip, away from the inner mold.

[0007] Furthermore, the end template has notches on both sides of the side closest to the inner mold, and the opposite notches perfectly accommodate the front and rear ends of the side template.

[0008] Furthermore, a duckbill female lock is installed on the inner wall of the inner mold, and a duckbill male lock is installed on the outer wall of the end template.

[0009] Furthermore, the end template has two symmetrical protrusions installed on the side near the inner mold.

[0010] Furthermore, the protrusion has a through hole, and a round rod is movably inserted between two protrusions on the same horizontal line, with both ends of the round rod protruding from both ends of the end template.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the four side templates of the outer mold are all hinged to the bottom plate of the inner mold. When the outer mold is closed, the four side templates can be flipped upwards, which is simple, quick and precise. The two side templates have protrusions with round rods passing through them, so that the preformed parts have a stress point when being lifted or transported. The round holes generated by the round rods in the preforms are used to splice the preforms together. By inserting the rods into the round holes, the splicing of the preforms can be achieved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a side view of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 4 This is a schematic diagram showing the relationship between the side template and the end template in the mold closing state of this utility model;

[0016] Figure 5 This is a schematic diagram of the side template structure in this utility model.

[0017] Numbering on the map:

[0018] 1. Base plate; 2. Inner mold; 3. Side template; 4. End template; 5. Lip edge; 6. Hinge; 7. Diagonal brace; 8. Duckbill nut lock; 9. Notch; 10. Protrusion; 11. Round rod. Detailed Implementation

[0019] 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.

[0020] This utility model provides a technical solution:

[0021] Please see Figure 1-5 A precast concrete cable trench mold includes an inverted U-shaped inner mold 2 and an outer mold. The bottom of the inner mold 2 has a base plate 1. The space formed between the inner mold 2 and the base plate 1 of the outer mold is a mold cavity. The outer mold is open from the top. Concrete is poured into the cavity from the open part until the concrete submerges the top of the inner mold 2.

[0022] To facilitate the closure of the four templates of the outer mold, the outer mold consists of two side templates 3 symmetrically located on both sides of the inner mold 2 and two inverted U-shaped end templates 4 symmetrically located at the front and rear ends of the inner mold 2. The side templates 3 and end templates 4 are in contact with each other. The base plate 1 has lips 5 around its perimeter. The two side templates 3 and the two end templates 4 are connected to their respective lips 5 by hinges 6. That is, when closing the mold, the side templates 3 and end templates 4 only need to be flipped upwards. When opening the mold, the side templates 3 and end templates 4 are flipped downwards. The hinges 6 are used to connect the side templates 3 and end templates 4 to the lips 5. The subsequent mold closure is quick and the splicing is accurate. The bottom of the two sides of the inner mold 2 is stepped, so that the opening of the formed preform can accommodate the cover.

[0023] Among them, the upper end of the lip 5 is equipped with a diagonal brace 7 on the side away from the inner mold 2. With the help of the diagonal brace 7, the side mold 3 and the end mold 4 do not have to collapse completely on the ground. Under the action of the diagonal brace 7, the side mold 3 and the end mold 4 remain tilted, which helps to improve the speed of the next mold closing without affecting the demolding of the precast part.

[0024] Since the end template 4 has notches 9 on both sides of the side closest to the inner mold 2, the front and rear opposite notches 9 can just accommodate the front and rear ends of the side template 3. That is, when the outer mold is closed, the two end templates 4 press against the two side templates 3. The inner wall of the inner mold 2 is equipped with a duckbill female lock 8, and the outer wall of the end template 4 is equipped with a duckbill male lock. At this time, it is only necessary to use the combination of the duckbill female lock 8 and the duckbill male lock to make the end template 4 shrink with the inner mold 2, and the two side templates 3 are also locked.

[0025] In addition, two symmetrical protrusions 10 are installed on the side of the end template 4 near the inner mold 2. The protrusions 10 have through holes. A round rod 11 is movably inserted between the two protrusions 10 on the same horizontal line. The two ends of the round rod 11 protrude from the two ends of the end template 4. After casting, due to the presence of the protrusions 10, the two sides of the precast part have concave sides. The concave sides can be used as the lifting force point when the precast part is lowered. At the same time, after demolding, the round rod 11 is pulled out, so that the precast part has a round hole of the same length. When the precast parts are spliced, the rod can be inserted into the round hole so that the two adjacent precast parts are aligned in a straight line.

[0026] 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 precast concrete cable trench mold, comprising an inverted U-shaped inner mold (2) and an outer mold, wherein the bottom of the inner mold (2) has a base plate (1), characterized in that: The outer mold consists of two side templates (3) symmetrically located on both sides of the inner mold (2) and two end templates (4) symmetrically located at the front and rear ends of the inner mold (2) and inverted U-shape. The side templates (3) and end templates (4) are in contact with each other. Concrete is poured in the space formed between the inner mold (2) and the two side templates (3) and the two end templates (4). The bottom plate (1) has lips (5) around its perimeter. The two side templates (3) and the two end templates (4) are connected to their respective lips (5) by hinges (6). The bottom of both sides of the inner mold (2) is stepped. The side of the end template (4) close to the inner mold (2) is equipped with two symmetrical protrusions (10). The protrusions (10) have through holes. A round rod (11) is movably inserted between the two protrusions (10) on the same horizontal line. The two ends of the round rod (11) protrude from the two ends of the end template (4).

2. The precast concrete cable trench mold according to claim 1, characterized in that: A diagonal brace (7) is installed on the upper end of the lip (5) away from the inner mold (2).

3. The precast concrete cable trench mold according to claim 1, characterized in that: The end template (4) has notches (9) on both sides of the side closest to the inner mold (2), and the front and rear opposite notches (9) can just accommodate the front and rear ends of the side template (3).

4. The precast concrete cable trench mold according to any one of claims 1 or 2, characterized in that: The inner wall of the inner mold (2) is fitted with a duckbill female lock (8), and the outer wall of the end mold (4) is fitted with a duckbill male lock.

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