Bridge opening cover plate mold with ejection mechanism
By using hydraulic cylinders and plug-in structure design, the problems of complex air-jacking structure and difficult disassembly and assembly of templates in bridge hole cover plate molds are solved, realizing convenient disassembly and assembly of templates and simplified maintenance.
Patent Information
- Application Number
- CN202520189623.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The existing bridge culvert cover mold has a complex air-jacking structure and the forming template needs to be maintained and replaced regularly, making it difficult to disassemble and assemble.
The design employs a hydraulic cylinder and a plug-in structure. The hydraulic cylinder drives the mutual movement of the forming plate and the support plate to realize the ejection and disassembly of the formed parts. The plug-in structure of the mounting plate and the positioning block simplifies the disassembly and assembly process of the template.
It simplifies the mold assembly and disassembly process, reduces maintenance frequency, and improves the ease of template replacement.
Smart Images

Figure CN223790693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field especially relates to a bridge hole cover plate mould with ejection mechanism. BACKGROUND
[0002] Mould, industrial production is used to injection, blow molding, extrusion, die casting or forging pressure forming, smelting, stamping etc.
[0003] And bridge hole cover plate mould usually is filled into mould with concrete slurry and waits its solidification forming. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of prior art, the utility model provides a bridge hole cover plate mould with ejection mechanism, overcome the deficiencies of prior art, effectively solve the problem that the gas top structure of most prior art is complex, and the formed template needs regular maintenance and replacement, and is not easy to disassemble.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] A bridge hole cover plate mould with ejection mechanism, including base, the top of base is connected with mould frame, and the mould frame is provided with the supporting plate, the bottom of supporting plate is connected with first hydraulic oil cylinder, and the bottom of supporting plate is connected with auxiliary rod, the top of base is fixed with support column, and the top of two support columns is fixed with top plate, the bottom of top plate is fixed with second hydraulic oil cylinder, and the lower end of second hydraulic oil cylinder is connected with forming plate, the both ends of forming plate are connected with positioning block, and the top one end of positioning block is inserted with inserting rod.
[0007] By the second hydraulic oil cylinder elongation upwards drives the forming plate to move down, and makes fixed rod and the supporting plate below abut, by two grouting pipes to carry out grouting operation below, when concrete slurry fills up in the top of supporting plate in mould frame, waits the solidification forming of slurry, after forming, by the second hydraulic oil cylinder upwards the forming plate is lifted, cooperate the second hydraulic oil cylinder elongation upwards and lift the supporting plate, to the top of supporting plate in mould frame from the ejection of forming piece, and the connecting structure of the forming plate and two end positioning block insertion is connected fixed, the forming plate is convenient to disassemble and replace.
[0008] Preferably, the top of the base has a mounting groove, and the mounting groove and the support plate are interlocked.
[0009] The tray is embedded in the top of the base through a mounting slot.
[0010] Preferably, the bottom of the first hydraulic cylinder is fixed to the bottom of the mounting groove, and both ends of the bottom of the mounting groove are fixed with auxiliary pipes that form an insertion fit with the auxiliary rod.
[0011] The pallet is raised and lowered by the extension and retraction of the first hydraulic cylinder in conjunction with the auxiliary rod, thereby ejecting the molded part from the top of the pallet.
[0012] Preferably, the lower end of the second hydraulic cylinder is fixed with a mounting plate, and the mounting plate is connected and fixed to the forming plate by a screw.
[0013] The second hydraulic cylinder is connected and fixed to the forming plate via a mounting plate, which facilitates the disassembly and replacement of the forming plate.
[0014] Preferably, grouting pipes are inserted and fixed at both ends of the top of the molding plate, and fixing rods distributed in a matrix are fixed at the bottom of the molding plate.
[0015] When the fixing rod at the bottom of the molding plate comes into contact with the support plate below, grouting is performed downwards through the grouting pipe.
[0016] Preferably, the outer walls at both ends of the molding plate are provided with positioning grooves, and the positioning grooves and positioning blocks are in sliding fit. The top of the positioning grooves is provided with through holes that are compatible with the insertion rods.
[0017] The positioning block is inserted into the positioning slot, and the positioning block and the forming plate are connected and fixed by the insertion rod to improve the stability of the forming plate lifting.
[0018] The beneficial effects of this utility model are as follows:
[0019] After the concrete slurry fills and solidifies on top of the support plate inside the mold frame, the second hydraulic cylinder lifts the forming plate upwards. The second hydraulic cylinder also extends upwards to raise the support plate, thereby pushing the formed part on top of the support plate out of the mold frame. The forming plate, which is connected and fixed by the mounting plate, and the connection structure between the forming plate and the positioning blocks at both ends, facilitates the disassembly and replacement of the forming plate. This effectively solves the problems of complex air-jacking structures and the need for regular maintenance and replacement of the formed templates in existing technologies, which are not easy to disassemble and assemble. Attached Figure Description
[0020] Fig. 1 This is a schematic diagram of the overall structure of a bridge hole cover plate mold with an ejection mechanism proposed in this utility model;
[0021] Fig. 2This is a schematic diagram of the support plate structure of a bridge hole cover plate mold with an ejection mechanism proposed in this utility model;
[0022] Fig. 3 This is a schematic diagram of the forming plate structure of a bridge hole cover plate mold with an ejection mechanism proposed in this utility model.
[0023] In the diagram: 1. Base; 2. Mold frame; 3. Support plate; 4. First hydraulic cylinder; 5. Auxiliary rod; 6. Support column; 7. Top plate; 8. Second hydraulic cylinder; 9. Mounting plate; 10. Forming plate; 11. Grouting pipe; 12. Fixing rod; 13. Positioning groove; 14. Positioning block; 15. Insert rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example:
[0026] Reference Figs. 1-3 A bridge tunnel cover plate mold with an ejection mechanism includes a base 1, a mold frame 2 connected to the top of the base 1, a support plate 3 disposed inside the mold frame 2, a first hydraulic cylinder 4 connected to the bottom of the support plate 3, auxiliary rods 5 connected to both ends of the bottom of the support plate 3, support columns 6 fixed to both ends of the top of the base 1, a top plate 7 fixed to the top of both support columns 6, a second hydraulic cylinder 8 fixed to the bottom of the top plate 7, a forming plate 10 connected to the lower end of the second hydraulic cylinder 8, positioning blocks 14 connected to both ends of the forming plate 10, and an insert rod 15 inserted into one end of the top of the positioning block 14.
[0027] The top of the base 1 is provided with an installation groove, which is inserted into the support plate 3. The support plate 3 is embedded in the top of the base 1 through the installation groove. The bottom of the first hydraulic cylinder 4 is fixed to the bottom of the installation groove. Both ends of the bottom of the installation groove are fixed with auxiliary tubes that are inserted into the auxiliary rod 5. The support plate 3 is raised and lowered by the extension and retraction of the first hydraulic cylinder 4 in coordination with the auxiliary rod 5, thereby pushing out the molded part on the top of the support plate 3. The lower end of the second hydraulic cylinder 8 is fixed with an installation plate 9. The installation plate 9 is connected and fixed to the molded plate 10 by a screw. The second hydraulic cylinder 8 is connected and fixed to the molded plate 10 through the installation plate 9, which facilitates the disassembly and replacement of the molded plate 10.
[0028] Grouting pipes 11 are inserted and fixed at both ends of the top of the molding plate 10. Fixed rods 12 distributed in a matrix are fixed at the bottom of the molding plate 10. When the fixed rods 12 at the bottom of the molding plate 10 abut against the support plate 3 below, grouting is performed downward by the grouting pipes 11. Positioning grooves 13 are opened on the outer walls of both ends of the molding plate 10. The positioning grooves 13 and positioning blocks 14 form a sliding fit. The top of the positioning grooves 13 is opened with through holes that are adapted to the insertion rods 15. The positioning blocks 14 are inserted into the positioning grooves 13, and the positioning blocks 14 and the molding plate 10 are connected and fixed by the insertion rods 15 to improve the stability of the molding plate 10 when it is raised and lowered.
[0029] Working principle:
[0030] During operation, the second hydraulic cylinder 8 extends upward to move the forming plate 10 downward, and the fixing rod 12 abuts against the lower support plate 3. Grouting is performed downward by the two grouting pipes 11. After the concrete slurry fills the top of the support plate 3 in the mold frame 2, it waits for the slurry to solidify and form. After forming, the second hydraulic cylinder 8 lifts the forming plate 10 upward. The second hydraulic cylinder 8 extends upward to lift the support plate 3, thereby pushing the formed part on the top of the support plate 3 out of the mold frame 2. The forming plate 10 is connected and fixed by the mounting plate 9, and the connection structure of the forming plate 10 and the positioning blocks 14 at both ends are easy to disassemble and replace.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A bridge hole cover plate mold with an ejection mechanism, comprising a base (1), characterized in that, The top of the base (1) is connected to a mold frame (2), and a support plate (3) is provided inside the mold frame (2). The bottom of the support plate (3) is connected to a first hydraulic cylinder (4), and both ends of the bottom of the support plate (3) are connected to auxiliary rods (5). Both ends of the top of the base (1) are fixed with support columns (6), and the top of the two support columns (6) is fixed with a top plate (7). The bottom of the top plate (7) is fixed with a second hydraulic cylinder (8), and the lower end of the second hydraulic cylinder (8) is connected to a forming plate (10). Both ends of the forming plate (10) are connected with positioning blocks (14), and one end of the top of the positioning block (14) is inserted with a rod (15).
2. A bridge hole cover plate mold with an ejection mechanism according to claim 1, characterized in that, The top of the base (1) is provided with an installation groove, and the installation groove and the support plate (3) are interlocked.
3. A bridge hole cover plate mold with an ejection mechanism according to claim 1, characterized in that, The bottom of the first hydraulic cylinder (4) is fixed to the bottom of the mounting groove, and both ends of the bottom of the mounting groove are fixed with auxiliary pipes that form an insertion fit with the auxiliary rod (5).
4. A bridge hole cover plate mold with an ejection mechanism according to claim 1, characterized in that, The lower end of the second hydraulic cylinder (8) is fixed with a mounting plate (9), and the mounting plate (9) is connected and fixed to the forming plate (10) by a screw.
5. A bridge hole cover plate mold with an ejection mechanism according to claim 1, characterized in that, The top two ends of the molding plate (10) are both connected to grouting pipes (11), and the bottom of the molding plate (10) is fixed with fixing rods (12) arranged in a matrix.
6. A bridge hole cover plate mold with an ejection mechanism according to claim 1, characterized in that, The outer walls at both ends of the forming plate (10) are provided with positioning grooves (13), and the positioning grooves (13) and the positioning blocks (14) are in sliding fit. The top of the positioning grooves (13) is provided with through holes that are compatible with the insert rods (15).