Plate punching device for civil air defense door plate

By combining a base, a fixing plate, a frame, and an L-shaped bracket, and using an electric push rod, the inconvenience of mold replacement and position adjustment for the punching device of the air defense door panel is solved, enabling rapid mold replacement and precise positioning of the punching position, thus improving operational efficiency.

CN223833222UActive Publication Date: 2026-01-27HENAN HUANGHUAI CIVIL AIR DEFENSE EQUIP CO LTD
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Patent Information

Application Number
CN202520147369.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-27
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The punching device for the air-raid shelter door panel is inconvenient to operate when changing molds and adjusting the punching position, requiring the disassembly of multiple mounting bolts, which is cumbersome.

Method used

It adopts a combination structure of base, fixed plate, frame, L-shaped bracket and electric push rod. Through the cooperation of the socket, the insertion post and the electric push rod, it can realize the quick change of mold and the precise positioning of the punching position of sheet metal.

Benefits of technology

It simplifies the mold changing process, improves the convenience and accuracy of operation, reduces the use of mounting bolts, and enhances the working efficiency of the punching device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plate punching device for a civil air defense door plate, and relates to the technical field of civil air defense doors. The device comprises a base, a fixing plate, a rack, an L-shaped support and a second electric push rod, the fixing plate is arranged in the center of the top of the base, the rack is fixed behind the base, a first electric push rod is fixed to the position, corresponding to the fixing plate, of the top of the rack, and a piston rod of the first electric push rod is inserted into the rack in a penetrating mode. A lifting block is fixed to the bottom end of a telescopic rod of the first electric push rod, an L-shaped support is movably connected to the outer side of the lifting block, second electric push rods are symmetrically arranged on the two sides of the rack and one side of the base, and a limiting plate is fixed to the telescopic ends of the two electric push rods located on the same side of the base. Through the arrangement of the base, the fixing plate, the rack, the L-shaped support and the second electric push rod, the problems that according to a plate punching device of the civil air defense door plate, a plurality of mounting bolts need to be disassembled when a die is replaced, operation is not convenient enough, and the operation of replacing the plate punching position is inconvenient are solved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of civil defense doors, and in particular relates to a punching device for civil defense door panels. Background Technology

[0002] Punching of air-raid shelter door panels refers to the process of punching holes in the door panels during the manufacturing process to meet specific design and functional requirements. This processing method is usually used to install components such as door locks, hinges, and vents, or to reduce the weight of the door panel and increase ventilation. Therefore, punching is an important step in the production of air-raid shelter doors, but it still has the following drawbacks in actual use:

[0003] 1. The punching device for the air defense door panel punches holes directly during operation. However, punching requires the use of a mold. When dealing with different hole diameters on the panel, the mold needs to be changed. Changing the mold requires the disassembly of multiple mounting bolts, which is inconvenient.

[0004] 2. The punching device for the air-raid shelter door panel requires the replacement and adjustment of different molds to align the punching position on the panel with the punching position during operation, which is a rather cumbersome process. Utility Model Content

[0005] The purpose of this utility model is to provide a punching device for air defense door panels. By setting up a base, a fixing plate, a frame, an L-shaped bracket and an electric push rod, it solves the problems of the need to disassemble multiple mounting bolts to change the mold of the punching device for air defense door panels, which is not convenient to operate and the operation is inconvenient to change the punching position of the panel.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a punching device for a civil defense door panel, comprising a base, a fixing plate, a frame, an L-shaped bracket, and two electric push rods. The fixing plate is located at the center of the top of the base, and a vertical through-hole is formed in the center of the fixing plate. The frame is fixed to the rear of the base. An electric push rod is fixed to the top of the frame at a position corresponding to the fixing plate. The piston rod of the electric push rod is inserted into the frame. A lifting block is fixed to the bottom end of the telescopic rod of the electric push rod. An L-shaped bracket is movably connected to the outer side of the lifting block. A fixed... The device includes insert posts, and two electric push rods are symmetrically arranged on both sides of the frame and one side of the base. The two electric push rods are both located above the base. The telescopic ends of the two electric push rods on the same side of the base are jointly fixed to a limit plate. During operation, the equipment that needs to be punched is installed on the base, and the insert posts are inserted through the sockets on the fixed plate. The frame supports the first electric push rod on it, and the first electric push rod drives the lifting block, which in turn moves the L-shaped bracket. When the L-shaped bracket is engaged, the insert posts are fixed on it, and the second electric push rod drives the limit plate to move.

[0008] Furthermore, a discharge hole is vertically through the center of the base, and the inner diameter of the discharge hole is larger than the inner diameter of the insertion port. Insertion holes are arranged in a ring array on the outer side of the discharge hole at the top of the discharge hole. Connecting columns are evenly fixed on the top of the base outside the fixed plate. A ball is movably arranged in the upper part of the connecting column. The apex of the ball is at the same height as the top of the fixed plate. When the base is working, the material of the plate is discharged through the discharge hole, and the insertion rod is movably connected through the insertion holes. The ball on the connecting column cooperates to support the plate being punched and coordinates with the movement of the plate.

[0009] Furthermore, each of the four corners at the bottom of the fixing plate is fixed with a plug rod, which is inserted into the socket. The plug rod corresponds to the position of the socket. When the fixing plate is working, the plug rod is inserted into the socket to restrict the position of the fixing plate.

[0010] Furthermore, the bottom of the lifting block is provided with several parallel T-shaped grooves, and several parallel T-shaped strips are fixed at equal intervals on the top surface of the horizontal part of the L-shaped bracket. The T-shaped strips are movably connected in the T-shaped grooves to restrict the position of the lifting block and the T-shaped grooves.

[0011] Furthermore, a mounting bolt is inserted through one side of the vertical part of the L-shaped bracket, and the mounting bolt is threaded into the lifting block, so that the L-shaped bracket is connected to the lifting block.

[0012] Furthermore, each of the electric push rods is fixed to a mounting base at its bottom. The mounting base is fixed to the outside of the base, and the electric push rod drives the mounting base to be fixed on the base. The position of the plate above the base is restricted by the limiting plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model solves the problem of inconvenient operation caused by disassembling multiple mounting bolts when changing the mold of the punching device for air-raid shelter door panels by setting up a base, a fixing plate, a frame, and an L-shaped bracket. A fixing plate with a suitable diameter insertion hole is selected, and the fixing plate on the base is pulled upwards until the insertion rod separates from the base. A new fixing plate is then selected, and the insertion rod is inserted into the insertion hole to complete the fixing plate replacement. When the L-shaped bracket needs to be replaced, the mounting bolt is first rotated to unscrew it from the lifting block. Then, the L-shaped bracket is pulled to separate the T-shaped strip inside the L-shaped bracket from the lifting block. After this, a new insertion post with a diameter matching the insertion hole on the fixing plate is selected, and the T-shaped strip on this L-shaped bracket is inserted into the T-slot. The mounting bolt is then inserted into the L-shaped bracket and screwed into the lifting block to complete the punching mold replacement. The operation is convenient.

[0015] 2. This utility model solves the problem of inconvenient operation when changing the punching position of the panel in the air-raid shelter door by setting up a base and electric push rod two. When the installation between the fixed plate and the L-shaped bracket is completed, the position where the panel to be processed needs to be punched is determined. Then, the corresponding panel is placed on the base and supported by the ball bearings on the connecting column of the base. Then, electric push rod one is activated to drive the lifting block to descend, which drives the L-shaped bracket to move and drives the insert to descend close to the air-raid shelter door panel to be punched. Electric push rod two at the two edges of the base is activated to drive the limiting plate to move until the two limiting plates move to push the punching position on the air-raid shelter door panel to align with the insert, making the operation of changing the punching position of the panel in the air-raid shelter door much simpler. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional diagram of the assembly structure of a punching device for a type of civil defense door panel;

[0018] Figure 2 This is a 3D view of the base structure;

[0019] Figure 3 This is a three-dimensional view of the fixed plate structure;

[0020] Figure 4 This is a 3D view of the frame structure;

[0021] Figure 5 A 3D view of the L-shaped support structure;

[0022] Figure 6 This is a three-dimensional view of the electric actuator II structure.

[0023] Figure label:

[0024] 1. Base; 101. Discharge hole; 102. Insertion hole; 103. Connecting column; 104. Ball bearing; 2. Fixing plate; 201. Insertion port; 202. Insertion rod; 3. Frame; 301. Electric push rod one; 302. Lifting block; 303. T-slot; 4. L-shaped bracket; 401. T-shaped strip; 402. Mounting bolt; 403. Insertion column; 5. Electric push rod two; 501. Limiting plate; 502. Mounting seat. 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0027] Please see Figure 1-5 This utility model relates to a punching device for a civil defense door panel, comprising a base 1, a fixing plate 2, a frame 3, an L-shaped bracket 4, and an electric push rod 5. The fixing plate 2 is located at the center of the top of the base 1. When the base 1 is in operation, the fixing plate 2 is supported on it. A vertical through-hole 201 is provided in the center of the fixing plate 2. Through the through-hole 201, when the movable connecting post 403 is engaged, the waste material generated by the post 403 punching the panel is conveyed to the discharge hole 101. The frame 3 is fixed at the rear of the base 1. When the base 1 is in operation, the electric push rod 301 is supported on it through the frame 3. The electric push rod 301 is fixed at the top of the frame 3 at a position corresponding to the fixing plate 2. The piston rod of the electric push rod 301 is inserted through the frame 3. During operation, the lifting block 302 is driven to rise and fall by the electric push rod 301. The lifting block 302 is fixed at the bottom of the telescopic rod of the electric push rod 301. The L-shaped bracket 4 is movably connected to its outside through the lifting block 302. The L-shaped bracket 4 is movably connected to the outside of the lifting block 302. The insertion post 403 is connected to its bottom through the L-shaped bracket 4. The insertion post 403 is fixed on the bottom surface of the horizontal part of the L-shaped bracket 4. The insertion post 403 is used for punching. Electric push rods 5 are symmetrically arranged on both sides of the frame 3 and one side of the base 1. The limit plate 501, which determines the position of the air defense door panel, is driven to move by the electric push rods 55. The electric push rods 55 are all located above the base 1. The telescopic ends of the two electric push rods located on the same side of the base 1 are jointly fixed to the limit plate 501.

[0028] Specifically, a discharge hole 101 is vertically through the center of the base 1. The inner diameter of the discharge hole 101 is larger than the inner diameter of the insertion port 201. Insertion holes 102 are arranged in a ring array on the outer side of the discharge hole 101 at the top of the discharge hole 101. Connecting columns 103 are evenly fixed on the top of the base 1 outside the fixing plate 2. A ball bearing 104 is movably arranged in the upper part of the connecting column 103. The apex of the ball bearing 104 is at the same height as the top of the fixing plate 2. When the base 1 is working, it communicates with the waste discharge structure through the discharge hole 101 to discharge the waste generated by punching into the collection device. The base 1 is supported on the external support structure and cooperates to support the frame 3 and other structures. The insertion rod 202 is movably connected through the insertion hole 102. The ball bearing 104 on the connecting column 103 cooperates to move the air defense door plate.

[0029] Furthermore, each of the four corners at the bottom of the fixing plate 2 is fixed with a plug rod 202. The plug rod 202 is inserted into the socket 102. The plug post 403 corresponds to the position of the socket 102. The fixing plate 2 is inserted into the socket 102 through the plug rod 202 and is fixed on the base 1.

[0030] Furthermore, the bottom of the lifting block 302 is provided with several parallel T-shaped grooves 303, and several parallel T-shaped strips 401 are fixed at equal intervals on the top surface of the horizontal part of the L-shaped bracket 4. The T-shaped strips 401 are movably connected in the T-shaped grooves 303. The lifting block 302 is movably connected to the T-shaped strips 401 through the T-shaped grooves 303, and is movably connected to the T-shaped strips 401 through the T-shaped strips 401, so that the lifting block 302 and the L-shaped bracket 4 are connected together.

[0031] Furthermore, a mounting bolt 402 is inserted through one side of the vertical part of the L-shaped bracket 4. The mounting bolt 402 is threaded into the lifting block 302. When the L-shaped bracket 4 is working, the mounting bolt 402 is inserted into it and then screwed into the lifting block 302, so that the L-shaped bracket 4 is installed on the lifting block 302.

[0032] The operation process of this embodiment is as follows: During operation, first determine the diameter of the hole to be punched on the corresponding plate, select the fixing plate 2 with a suitable diameter insertion hole 201, pull the fixing plate 2 on the base 1 upward until the insertion rod 202 and the base 1 are separated, select the fixing plate 2 again, insert the insertion rod 202 into the insertion hole 102 to complete the replacement of the fixing plate 2. When it is necessary to replace the L-shaped bracket 4, first rotate the mounting bolt 402 to unscrew the mounting bolt 402 from the lifting block 302, and then pull the L-shaped bracket 4 to separate the T-shaped strip 401 in the L-shaped bracket 4 from the lifting block 302. After completion, select the insertion post 403 with a diameter matching the insertion hole 102 on the fixing plate 2, insert the T-shaped strip 401 on this L-shaped bracket 4 into the T-shaped groove 303, insert the mounting bolt 402 into the L-shaped bracket 4, and then screw it into the lifting block 302 to complete the work. Specific Implementation Example 2

[0034] Please see Figure 1-6 Based on the first specific embodiment, each electric push rod 25 has a mounting base 502 fixed at its bottom. The mounting base 502 is fixed on the outside of the base 1. When the electric push rod 25 drives the limiting plate 501, it moves the limiting plate 501 to a suitable position corresponding to the base 1, so that the position of punching the plate is determined when working.

[0035] The operation process of this embodiment is as follows: During operation, when the installation between the fixed plate 2 and the L-shaped bracket 4 is completed, the position where the processed plate needs to be punched is determined. Then, the corresponding plate is placed on the base 1 and supported by the ball bearing 104 on the connecting column 103 on the base 1. Then, the electric push rod 301 is activated to drive the lifting block 302 to descend, which moves the L-shaped bracket 4 and causes the insertion column 403 to descend close to the air-raid shelter door plate to be punched. The electric push rods 5 at the two edges of the base 1 are activated to drive the limiting plate 501 to move until the two limiting plates 501 move to push the punching position on the air-raid shelter door plate and the insertion column 403. After the column 403 is aligned, the electric push rod 301 is activated to drive the lifting block 302 to descend, which in turn lowers the insertion column 403 onto the plate to be punched. After punching the plate, the insertion column 403 is inserted into the socket 201 on the fixing plate 2, and the waste material is transported to the discharge hole 101 on the base 1 through the socket 201 to complete the punching. Then, the electric push rod 301 is restarted to drive the lifting block 302 and the L-shaped bracket 4 to rise, and the plate to be punched is removed. After completion, the plate is transported back to the top of the base 1 and pushed until the two sides are respectively in contact with the two limit plates 501 to start the working cycle.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A punching device for a civil defense door panel, comprising a base (1), a fixing plate (2), a frame (3), an L-shaped bracket (4), and an electric push rod (5), characterized in that: A fixing plate (2) is provided at the top center of the base (1). A slot (201) is vertically opened in the center of the fixing plate (2). A frame (3) is fixed behind the base (1). An electric push rod (301) is fixed at the top of the frame (3) at a position corresponding to the fixing plate (2). The piston rod of the electric push rod (301) is inserted into the frame (3). A lifting block (302) is fixed at the bottom end of the telescopic rod of the electric push rod (301). An L-shaped bracket (4) is movably connected to the outside of the lifting block (302). A column (403) is fixed on the bottom surface of the horizontal part of the L-shaped bracket (4). Electric push rods (5) are symmetrically arranged on both sides of the frame (3) and one side of the base (1). The electric push rods (5) are all located above the base (1). The telescopic ends of the two electric push rods located on the same side of the base (1) are jointly fixed with a limit plate (501).

2. The punching device for a civil defense door panel according to claim 1, characterized in that: A discharge hole (101) is vertically opened through the center of the base (1). The inner diameter of the discharge hole (101) is larger than the inner diameter of the socket (201). The outer side of the discharge hole (101) at the top of the discharge hole (101) is provided with sockets (102) in a ring array. Connecting columns (103) are evenly fixed on the top of the base (1) on the outside of the fixing plate (2). A ball (104) is movably arranged in the upper part of the connecting column (103). The apex of the ball (104) is equal to the top height of the fixing plate (2).

3. The punching device for a civil defense door panel according to claim 2, characterized in that: The four corners at the bottom of the fixing plate (2) are all fixed with plug rods (202), the plug rods (202) are inserted into the plug holes (102), and the plug post (403) corresponds to the position of the plug hole (102).

4. The punching device for a civil defense door panel according to claim 1, characterized in that: The bottom of the lifting block (302) is provided with several parallel T-shaped grooves (303), and several parallel T-shaped strips (401) are fixed at equal intervals on the top surface of the horizontal part of the L-shaped bracket (4). The T-shaped strips (401) are movably connected in the T-shaped grooves (303).

5. The punching device for a civil defense door panel according to claim 4, characterized in that: A mounting bolt (402) is inserted through one side of the vertical part of the L-shaped bracket (4), and the mounting bolt (402) is threaded into the lifting block (302).

6. The punching device for a civil defense door panel according to claim 1, characterized in that: Each of the electric push rods 2 (5) has a mounting base (502) fixed to its bottom, which is fixed to the outside of the base (1).