A punching tool for a civil air defense door

CN224795289UActive Publication Date: 2026-09-25HENAN BANGXING PROTECTION EQUIP CO LTD
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Patent Information

Application Number
CN202521508839.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-09-25
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

[0003]现根据授权公告号为CN213080176U的一种人防门钻孔定位装置可知,该专利为已知的现有技术,且该专利虽然能够将定位工装直接安装在人防门上,并依靠定位工装的活动效果实现钻孔位置的调整,其精度控制更加快捷、准确,提高了钻孔工作效率优点,但是该专利的技术方案在实际使用的过程中,还存在以下缺陷:该专利中由于定位工装上安装了钻孔机及其相关结构,势必造成定位工装的结构笨重,更不利于人们对定位工装位置的调整,使得定位以及钻孔作业的效率低,不利于人们对该定位工装的使用

Benefits of technology

该人防门打孔工装,是一种针对于人防门打孔位置的测量类工装,通过设置的边尺,能够卡设在人防门的侧边,并利用磁吸条实现固定,利用连接模块使得测量尺沿着边尺进行滑动以调整位置,利用拓印机构,能够在人防门上拓印标记,便于后续利用钻孔工具(例如手提钻)对人防门进行打孔加工,将测量和钻孔工具分离,从而更利于人们对人防门的打孔作业;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of civil air defence door punching frock, belong to civil air defence door processing technical field, including side ruler, the side ruler is two-part symmetry structure, and the middle part of side ruler is provided with fastener, the side of side ruler is slidably provided with connecting module, the side of connecting module is fixedly installed with measuring scale, connecting module is used for the sliding of measuring scale on side ruler, and measuring scale is two-part symmetry structure;The civil air defence door punching frock is a kind of measuring frock for the punching position of civil air defence door, the side of civil air defence door can be clamped by the side ruler set, and fixed using magnetic attraction strip, using connecting module makes measuring scale along side ruler sliding to adjust position, using transfer mechanism, can be transferred on civil air defence door Mark, subsequent drilling tool (for example hand-held drill) is used to the punching processing of civil air defence door, measuring and drilling tool are separated, to be more conducive to the punching operation of civil air defence door for people.
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Description

Technical Field

[0001] This utility model belongs to the field of civil defense door processing technology, specifically relating to a drilling tool for civil defense doors. Background Technology

[0002] Civil defense doors are essential structural components for entrances and exits in building protection projects. They are mostly made of metal. During the manufacturing process of civil defense doors, holes need to be drilled to accommodate things like door handles and hinges. Drilling tools are used to assist in the drilling process and are mainly divided into basic drilling tools and special auxiliary tools. In the actual drilling operation of civil defense doors, drilling tools are often used to help measure the drilling positions on the doors, making it easier for people to drill holes using a hand drill later.

[0003] According to the patent announcement number CN213080176U, a drilling positioning device for air-raid shelter doors, this patent is a known prior art. Although this patent can directly install the positioning fixture on the air-raid shelter door and adjust the drilling position by relying on the movement of the positioning fixture, and its precision control is faster and more accurate, improving the drilling efficiency, the technical solution of this patent still has the following defects in actual use: Since the drilling machine and its related structures are installed on the positioning fixture, the positioning fixture will inevitably be bulky, which is not conducive to adjusting the position of the positioning fixture, resulting in low efficiency of positioning and drilling operations, and is not conducive to the use of the positioning fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a drilling tool for air defense doors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling fixture for air-raid shelter doors, comprising a ruler, the ruler having a two-part symmetrical structure, a fastener provided in the middle of the ruler, a connecting module slidably disposed on one side of the ruler, a measuring ruler fixedly installed on one side of the connecting module, the connecting module being used for sliding the measuring ruler on the ruler, the measuring ruler having a two-part symmetrical structure, a disassembly module provided in the middle of the measuring ruler, the disassembly module being used for disassembling and assembling the two parts of the measuring ruler, a sliding assembly slidably disposed on the outside of the measuring ruler, a printing mechanism provided on one side of the sliding assembly, the printing mechanism being used for forming a mark on the air-raid shelter door, and an ink cartridge located below the printing mechanism on one side of the sliding assembly, the ink cartridge being used for providing ink to the printing mechanism.

[0006] In a preferred embodiment, an integrally formed tongue plate is fixedly provided on the middle of one side of the ruler. The upper and lower surfaces of the tongue plate are provided with scale strips. The upper and lower sides of one side of the ruler are provided with sliding grooves. A magnetic strip is provided inside the sliding groove located below the tongue plate.

[0007] In a preferred embodiment, the fastener includes a lug one and a lug two connected to the ends of the two parts of the ruler. A fastening bolt is inserted into the lug one and the lug two, and a locking nut is provided at one end of the fastening bolt. The locking nut is embedded in the lug one.

[0008] In a preferred embodiment, the connection module includes a trapezoidal plate fixedly connected to one end of the measuring ruler, an embedded block fixedly disposed on one side of the trapezoidal plate, a follower plate disposed on the top of the trapezoidal plate, and a through-type screw disposed above the follower plate, and a scale strip is disposed on the top outer wall of the trapezoidal plate.

[0009] In a preferred embodiment, the disassembly module includes a shallow groove and a slot formed on the outer wall of the bottom of the measuring ruler. The slot is located inside the shallow groove, and a reinforcing plate is inserted into the shallow groove. Insert blocks are fixedly provided on the outer walls of both ends of the reinforcing plate. The insert blocks are inserted into the slot. The ends of the two parts of the measuring ruler are provided with connecting sleeves, and bolts are provided inside the connecting sleeves.

[0010] In a preferred embodiment, the sliding assembly includes a C-shaped slide, with lining strips provided on both inner walls of the slide, a connecting seat fixedly provided on one outer wall of the slide, a support arm fixedly provided on the top outer wall of the connecting seat, and a fixing sleeve fixedly provided on one side at the top of the support arm.

[0011] In a preferred embodiment, the printing mechanism includes a column, a baffle is fixedly provided at the top of the column, and an extension rod is fixedly installed on the top outer wall of the baffle. A pressure head is fixedly provided at the top of the extension rod. A return spring is provided on the outside of the column below the baffle, and a printing mold head is provided at the bottom of the column.

[0012] In a preferred embodiment, the ink cartridge includes an insertion hole disposed inside one side of the connector, a cartridge body is slidably disposed inside the insertion hole, an ink storage groove is disposed on one side of the top of the cartridge body, and a finger groove is disposed at the far end of the cartridge body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This drilling tool for air-raid shelter doors is a measuring tool designed for drilling locations on air-raid shelter doors. It can be clamped onto the side of the air-raid shelter door using a side ruler and fixed with a magnetic strip. The connecting module allows the measuring ruler to slide along the side ruler to adjust its position. The imprinting mechanism can imprint marks on the air-raid shelter door, making it easier to drill holes in the air-raid shelter door using drilling tools (such as a hand drill). The separation of the measuring and drilling tools makes the drilling operation on air-raid shelter doors more convenient. This drilling tool for air-raid shelter doors is a measuring tool designed for drilling positions on air-raid shelter doors. By setting a sliding component, it can drive the rubbing mechanism to slide freely on the measuring ruler. This, combined with the movement of the measuring ruler on the edge ruler, allows the rubbing mechanism to move freely on the surface of the air-raid shelter door, enabling more flexible adjustment of its position. It allows for marking of the drilling position on the air-raid shelter door before drilling operations. The structure is reasonable and the operation is convenient. Attached Figure Description

[0014] Figure 1 This is a front perspective view of the structure of this utility model from one angle; Figure 2 This is another perspective view of the structure of this utility model from the front. Figure 3 This is a front view of the unfolded side ruler of the present invention. Figure 4 This is a front view of the structure of this utility model with the side ruler folded at 90 degrees. Figure 5 This is a front view of the measuring ruler of this utility model. Figure 6 This is a partial enlarged view of section A of the structure of this utility model; Figure 7 This is a partial enlarged view of section B of the structure of this utility model; Figure 8 This is a partial enlarged view of section C of the structure of this utility model; Figure 9 This is a partial enlarged view of section D of the structure of this utility model; Figure 10 This is an exploded view of the disassembled module of the present invention. Figure 11 This is a front view of the ink cartridge, sliding assembly, and printing mechanism of the present invention. Figure 12 This is an exploded view of the ink cartridge, sliding assembly, and printing mechanism of this utility model.

[0015] In the diagram: 1. Ruler; 11. Magnetic strip; 12. Slide groove; 13. Tongue plate; 14. Scale strip one; 2. Fastener; 21. Ear seat one; 22. Ear seat two; 23. Fastening bolt; 24. Locking nut; 3. Connecting module; 31. Trapezoidal plate; 32. Embedded block; 33. Screw; 34. Scale strip two; 4. Measuring ruler; 5. Disassembly module; 51. Shallow groove; 52. Slot; 53. Reinforcing plate; 5 4. Insert block; 55. Bolt; 56. Connecting sleeve; 6. Sliding assembly; 61. Slide block; 62. Liner; 63. Connecting seat; 64. Support arm; 65. Fixing sleeve; 7. Printing mechanism; 71. Column; 72. Baffle; 73. Extension rod; 74. Pressure head; 75. Return spring; 76. Printing die head; 8. Ink cartridge; 81. Insertion hole; 82. Cartridge body; 83. Ink reservoir; 84. Finger groove. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figure 1 , Figure 2 and Figure 6 This utility model provides a drilling tool for air defense doors, including a ruler 1. The ruler 1 has a two-part symmetrical structure. An integrally formed tongue plate 13 is fixedly installed in the middle of one side of the ruler 1. The upper and lower surfaces of the tongue plate 13 are provided with scale strips 14. The upper and lower sides of one side of the ruler 1 are provided with sliding grooves 12. A magnetic strip 11 is installed inside the sliding groove 12 located below the tongue plate 13. In this embodiment, the tongue plate 13 is provided so that the ruler 1 can be clamped on the side of the air defense door, and the magnetic strip 11 can be used to fix the ruler 1 to the air defense door, so as to achieve the fixed installation of the ruler 1. The scale strip 14 is used to measure the position of the drill hole on the air defense door.

[0019] Please see Figure 3 , Figure 4 , Figure 7 and Figure 8 A fastener 2 is provided in the middle of the edge ruler 1. The fastener 2 is hydraulically adjusted to adjust the angle of the two parts of the edge ruler 1. The fastener 2 includes a lug 1 21 and a lug 22 connected to the ends of the two parts of the edge ruler 1. A fastening bolt 23 is inserted into the inside of the lug 1 21 and the lug 22, and a locking nut 24 is provided at one end of the fastening bolt 23. The locking nut 24 is embedded in the inside of the lug 1 21. In this embodiment, by loosening the fastener 2, the operator can bend the two parts of the ruler 1 at an angle between zero and ninety degrees, which is more conducive to measuring and positioning the hole of the air defense door. Specifically, the operator rotates the fastening bolt 23 by hand, which changes the position of the locking nut 24, separates the ear seat 1 21 and the ear seat 22, and realizes the rotation of the two parts of the ruler 1. When locking, the operation is reversed.

[0020] Please see Figure 1 and Figure 9 A connecting module 3 is slidably provided on one side of the ruler 1, and a measuring ruler 4 is fixedly installed on one side of the connecting module 3. The connecting module 3 is used for the sliding of the measuring ruler 4 on the ruler 1. The measuring ruler 4 has a two-part symmetrical structure. The connecting module 3 includes a trapezoidal plate 31 fixedly connected to one end of the measuring ruler 4. An embedded block 32 is fixedly provided on one side of the trapezoidal plate 31. A follower plate is provided on the top of the trapezoidal plate 31, and a through-structure screw 33 is provided above the follower plate. A scale strip 2 34 is provided on the top outer wall of the trapezoidal plate 31. In the vertical direction, the scale strip 2 34 coincides with the scale strip 14, thereby better realizing measurement and positioning. In this embodiment, the embedded block 32 is slidably inserted into the inside of the slide groove 12. By using the sliding of the embedded block 32 inside the slide groove 12, the position of the measuring ruler 4 along the edge ruler 1 can be adjusted and measured. Before adjusting the position of the embedded block 32 inside the slide groove 12, it first contacts the limit of the screw 33. The position between the edge ruler 1 and the measuring ruler 4 is determined by the joint action of the scale strip 14 and the scale strip 24.

[0021] Please see Figure 1 , Figure 3 , Figure 5 and Figure 10 The measuring ruler 4 is provided with a disassembly module 5 in the middle. The disassembly module 5 is used to disassemble and assemble the two parts of the measuring ruler 4. The disassembly module 5 includes a shallow groove 51 and a slot 52 opened on the outer wall of the bottom of the measuring ruler 4. The slot 52 is located inside the shallow groove 51. A reinforcing plate 53 is inserted into the shallow groove 51. Insert blocks 54 are fixedly provided on the outer walls of both ends of the reinforcing plate 53. The insert blocks 54 are inserted into the slot 52. A magnetic attraction structure can be provided between the reinforcing plate 53 and the measuring ruler 4. At the same time, the reinforcing plate 53 is better fixed on the back of the measuring ruler 4. The ends of the two parts of the measuring ruler 4 are provided with connecting sleeves 56, and bolts 55 are provided inside the connecting sleeves 56. In this embodiment, the operator can disassemble the two measuring rulers 4 by disassembling module 5, thus achieving a single function. This makes it suitable for drilling, measuring, and positioning different specifications of air-raid shelter doors, improving the practicality of the tool. Specifically, the operator first pulls the insert 54 of the reinforcing plate 53 out of the slot 52, and removes the reinforcing plate 53 from the inside of the shallow groove 51. Then, the operator removes the bolt 55 from the two connecting sleeves 56, thereby quickly separating the measuring ruler 4.

[0022] Please see Figure 1 , Figure 5 , Figure 11 and Figure 12 The measuring ruler 4 is slidably provided with a sliding assembly 6. The sliding assembly 6 includes a C-shaped slide 61. The inner walls on both sides of the slide 61 are provided with a liner 62. The measuring ruler 4 is provided with grooves that fit the liner 62 on both sides. A connecting seat 63 is fixedly provided on one side of the outer wall of the slide 61. A support arm 64 is fixedly provided on the outer wall of the top of the connecting seat 63. A fixing sleeve 65 located on one side is fixedly provided at the top of the support arm 64. The extension rod 73 is slidably inserted into the inside of the fixing sleeve 65. In this embodiment, the sliding of the liner 62 inside the groove allows the slide block 61 to move freely on the surface of the measuring ruler 4. The movement of the slide block 61 can drive the connecting seat 63, the support arm 64 and the fixing sleeve 65 to move synchronously, thereby realizing the position measurement of the imprinting mechanism 7. For more flexible use, there is no need to set a locking structure on the sliding component 6. After adjusting the position of the slide block 61, the imprinting mechanism 7 can be directly operated to achieve marking.

[0023] Please see Figure 1 , Figure 5 , Figure 11 and Figure 12 A printing mechanism 7 is provided on one side of the sliding component 6. The printing mechanism 7 is used to form a mark on the air defense door. The printing mechanism 7 includes a column 71. A baffle 72 is fixedly provided at the top of the column 71. An extension rod 73 is fixedly installed on the top outer wall of the baffle 72. A pressure head 74 is fixedly provided at the top of the extension rod 73. A return spring 75 is provided on the outside of the column 71 below the baffle 72. When the baffle 72 descends, the return spring 75 is compressed. A printing mold head 76 is provided at the bottom of the column 71. The printing mold head 76 is an annular frame. The inside of the annular frame is a cross, and the center is a dot, which is more conducive to the subsequent drilling positioning using drilling tools. In this embodiment, after the position of the printing mechanism 7 is determined, the operator holds the pressure head 74 with his hand, causing the baffle 72, column 71 and printing mold head 76 to descend synchronously. The printing mold head 76 contacts the surface of the air-raid shelter door, thereby forming a mark on the surface of the air-raid shelter door, which facilitates subsequent drilling operations on the air-raid shelter door.

[0024] Please see Figure 1 , Figure 5 , Figure 11 and Figure 12 An ink cartridge 8 is located below the printing mechanism 7 on one side of the sliding component 6. The ink cartridge 8 is used to supply ink to the printing mechanism 7. The ink cartridge 8 includes an insertion hole 81 located inside one side of the connecting seat 63. A box body 82 is slidably disposed inside the insertion hole 81. An ink storage tank 83 is provided on the top side of the box body 82, and a finger groove 84 is provided at the far end of the box body 82. The finger groove 84 makes it easier for people to pull the box body 82 out of the insertion hole 81. In this embodiment, ink is injected into the ink reservoir 83 inside the ink cartridge 8. When the printing mechanism 7 is not used, the cartridge 82 is inserted into the socket 81, so that the bottom end of the printing die 76 is located inside the ink reservoir 83 for dipping in ink. When the column 71 drives the printing die 76 to descend, the operator first pulls the cartridge 82 out of the socket 81 to make room for the column 71 to descend.

[0025] The working principle and usage process of this utility model are as follows: First, the operator places the ruler 1 on one side of the air defense door and uses the magnetic strip 11 to attach and fix the ruler 1 to the side of the air defense door. Next, by loosening the screw 33 on the connecting module 3, the embedded block 32 slides freely inside the slide groove 12, thereby adjusting the position of the measuring ruler 4 along the edge ruler 1. The position of the measuring ruler 4 is determined by using the scale strip 14 on the edge ruler 1 and the scale strip 34 on the trapezoidal plate 31. After the position of the measuring ruler 4 on the edge ruler 1 is determined, the operator can lock it by using the screw 33. Then the operator slides the sliding component 6 on the measuring ruler 4, causing the slide 61 to move the connecting seat 63. The position of the connecting seat 63 is measured by the scale on the measuring ruler 4. After the position is determined, the operator holds the pressure head 74 and presses it down, which in turn causes the extension rod 73 and the column 71 to descend synchronously. The imprinting mold head 76 is used to imprint the mark on the air defense door, so that the position where drilling is required can be marked. Finally, as the baffle 72 descends with the column 71, the return spring 75 is compressed. If the operator releases the pressure head 74, the return spring 75 will cause the column 71 to lift the printing mold head 76. The operator can then use existing drilling tools (such as a hand drill) to drill holes at the marked locations on the air-raid shelter door.

[0026] In the above scheme, it should be noted that: the drilling tool of this application is a measuring tool for marking the drilling position of the air-raid shelter door. After the drilling position is marked, the staff still need to use the existing drilling tools (such as hand drills) to drill at the marked position on the air-raid shelter door. At the same time, when the column 71 drives the printing mold head 76 to descend, the operator first inserts his finger into the inside of the finger groove 84 and pulls the box 82 out from the inside of the insertion hole 81. The ink inside the ink storage tank 83 has already soaked into the surface of the printing mold head 76. The first extraction of the box 82 allows the column 71 to move downward smoothly, which is a reasonable structure.

[0027] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling tool for air-raid shelter doors, comprising a ruler (1), characterized in that: The ruler (1) is a two-part symmetrical structure. A fastener (2) is provided in the middle of the ruler (1). A connecting module (3) is slidably provided on one side of the ruler (1). A measuring ruler (4) is fixedly installed on one side of the connecting module (3). The connecting module (3) is used for the sliding of the measuring ruler (4) on the ruler (1). The measuring ruler (4) is a two-part symmetrical structure. A disassembly module (5) is provided in the middle of the measuring ruler (4). The disassembly module (5) is used for the disassembly and assembly of the two parts of the measuring ruler (4). A sliding component (6) is slidably provided on the outside of the measuring ruler (4). A printing mechanism (7) is provided on one side of the sliding component (6). The printing mechanism (7) is used to form a mark on the air defense door. An ink box (8) is provided on one side of the sliding component (6) below the printing mechanism (7). The ink box (8) is used to provide ink to the printing mechanism (7).

2. The drilling fixture for a civil defense door according to claim 1, characterized in that: A tongue plate (13) is fixedly installed in one middle of one side of the ruler (1). The upper and lower surfaces of the tongue plate (13) are provided with scale strips (14). The upper and lower sides of one side of the ruler (1) are provided with grooves (12). A magnetic strip (11) is provided inside the groove (12) located below the tongue plate (13).

3. The drilling fixture for air-raid shelter doors according to claim 1, characterized in that: The fastener (2) includes a lug one (21) and a lug two (22) connected to the ends of the two parts of the ruler (1). A fastening bolt (23) is inserted inside the lug one (21) and the lug two (22), and a locking nut (24) is provided at one end of the fastening bolt (23). The locking nut (24) is embedded inside the lug one (21).

4. The drilling fixture for a civil defense door according to claim 1, characterized in that: The connection module (3) includes a trapezoidal plate (31) fixedly connected to one end of the measuring ruler (4). An embedded block (32) is fixedly provided on one side of the trapezoidal plate (31). A follower plate is provided on the top of the trapezoidal plate (31), and a through-structure screw (33) is provided above the follower plate. A scale strip (34) is provided on the top outer wall of the trapezoidal plate (31).

5. The drilling fixture for a civil defense door according to claim 1, characterized in that: The disassembly module (5) includes a shallow groove (51) and a slot (52) on the bottom outer wall of the measuring ruler (4). The slot (52) is located inside the shallow groove (51). A reinforcing plate (53) is inserted into the shallow groove (51). Insert blocks (54) are fixedly provided on the outer walls of both ends of the reinforcing plate (53). The insert blocks (54) are inserted into the slot (52). The ends of the two parts of the measuring ruler (4) are provided with connecting sleeves (56), and bolts (55) are provided inside the connecting sleeves (56).

6. The drilling fixture for a civil defense door according to claim 1, characterized in that: The sliding assembly (6) includes a C-shaped slide (61), with lining strips (62) provided on both inner walls of the slide (61), a connecting seat (63) fixedly provided on one outer wall of the slide (61), a support arm (64) fixedly provided on the outer wall of the top of the connecting seat (63), and a fixing sleeve (65) fixedly provided on one side of the top of the support arm (64).

7. The drilling fixture for air-raid shelter doors according to claim 1, characterized in that: The printing mechanism (7) includes a column (71), a baffle (72) is fixedly provided at the top of the column (71), and an extension rod (73) is fixedly installed on the top outer wall of the baffle (72). A pressure head (74) is fixedly provided at the top of the extension rod (73). A reset spring (75) located below the baffle (72) is provided on the outside of the column (71), and a printing mold head (76) is provided at the bottom of the column (71).

8. The drilling fixture for a civil defense door according to claim 6, characterized in that: The ink cartridge (8) includes an insertion hole (81) located inside one side of the connector (63), a cartridge body (82) is slidably disposed inside the insertion hole (81), an ink storage groove (83) is provided on one side of the top of the cartridge body (82), and a finger groove (84) is provided at the far end of the cartridge body (82).

Citation Information

Patent Citations

  • Civil air defense door drilling and positioning device

    CN213080176U