Civil air defense door locking mechanism

Abstract

The utility model provides a civil defense door locking mechanism, which relates to the technical field of civil defense engineering and comprises a main door body, a sealing strip is arranged on the edge of the main door body, a control side of the main door body is of a concave structure, a control hand wheel is rotatably arranged in the middle of the control side of the main door body, and a rotating hinged support is fixedly arranged outside a rotating shaft of the control hand wheel. Two sets of pull rods are hinged to the two sides of the rotary hinged support, hinged push rods are hinged to the other ends of the pull rods, and two sets of sliding mortise locks are integrally arranged outside the hinged push rods; an oil adding sliding frame is arranged, the lubricating function is provided, when a pull ring is pulled, a spring lock drives a connecting block to extrude an air telescopic rod, air in the air telescopic rod is input into an air inlet pipe and then input into a lubricating oil cylinder, the air penetrates through an exhaust pipe, a connecting pipe, a one-way valve A and an oil adding hole to enter the oil adding sliding frame, and lubricating oil is brushed to the outer portion of a sliding mortise lock; normal locking can be guaranteed, and the problem that an existing locking mechanism lacks a lubricating function is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil defense engineering, and more specifically, particularly relates to a locking mechanism for a civil defense door. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. They can be closed quickly when necessary to protect the people.

[0003] Based on the above, the locking mechanisms currently used are mainly made of steel. During long-term use and after multiple drills, the friction between the steel and the outer skin will gradually cause the anti-rust paint to fall off, and then rust will appear, resulting in poor locking and lack of lubrication function. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a civil defense door locking mechanism to solve the problem that the existing locking mechanism proposed in the above background technology is mainly made of steel. After long-term use and multiple drills, the anti-rust paint on the outer skin will gradually fall off due to the friction of the steel, and then rust will appear, resulting in poor locking and lack of lubrication function.

[0005] The purpose and effect of the civil air defense door locking mechanism of the utility model are achieved by the following specific technical means:

[0006] A locking mechanism for a civil air defense door comprises a main door body, the edge of which is provided with a sealing strip, a control side of the main door body being provided with a recessed structure, a control hand wheel being rotatably provided in the middle of the control side of the main door body, a rotating hinge seat being fixedly provided outside the rotating shaft of the control hand wheel; two groups of pull rods are hingedly provided on both sides of the rotating hinge seat, an articulated push rod is hingedly provided at the other end of the pull rod, and two groups of sliding latches are integrally provided outside the articulated push rod; four groups of oiling sliding frames are fixedly provided at the upper and lower ends of the control side of the main door body, and the sliding latches are slidably connected to the oiling sliding frames; a connecting frame is fixedly provided on the control side of the main door body.

[0007] Furthermore, a wedge lock is integrally provided on the outside of the rotating hinge seat; a guide block is fixedly provided on the control side of the main door body; the main door body also includes: a spring lock, a spring rod is fixedly provided on one side of the spring lock, the spring rod is sleeved with a spring and a pull ring is fixedly provided through the guide block; the wedge lock can contact the spring lock; the control hand wheel is turned, and the control hand wheel cooperates with the rotating hinge seat to drive the pull rod to open the hinged push rods on both sides, and then the sliding lock is inserted into the pre-set socket in the door opening for corresponding locking; when the rotating hinge seat rotates, the wedge lock first pushes the spring lock away, and then the spring lock cooperates with the spring outside the spring rod to automatically reset and lock the wedge lock. When the rotating hinge seat needs to be restored to its original position, the pull ring is pulled to open the spring lock.

[0008] Furthermore, the top of the oil filling sliding frame is a groove structure, and oil filling holes are opened at the bottom corners of the groove structure; a one-way valve A is provided on the external connection of the oil filling sliding frame, and the one-way valve A is connected to the oil filling hole.

[0009] Furthermore, one side of the connecting frame is a turning structure, a gas telescopic rod is fixedly provided on one side of the turning point, a connecting block is fixedly provided at the telescopic end of the gas telescopic rod, and the connecting block is fixedly connected to the spring lock; a one-way valve B is fixedly provided on the top of the turning point of the connecting frame; a threaded sleeve is integrally provided on the bottom of the connecting frame, an air inlet pipe and an exhaust pipe are fixedly provided inside the threaded sleeve, and a connecting pipe connected to the exhaust pipe is provided on the top of the connecting frame.

[0010] Furthermore, the air inlet pipe, the telescopic rod and the one-way valve B are connected.

[0011] Furthermore, a pipeline is arranged at the top of the connecting pipe to communicate with four sets of one-way valves A.

[0012] Furthermore, a lubricating oil cylinder is fixedly provided on the outside of the threaded sleeve via a threaded connection, and the bottom of the exhaust pipe is close to the inner bottom of the lubricating oil cylinder.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] An oil-filling sliding frame is provided to provide a lubrication function. When the pull ring is pulled, the spring lock drives the connecting block to squeeze the gas telescopic rod, and the air inside the gas telescopic rod is input into the air inlet pipe, and then into the lubricating oil cylinder. Then, the lubricating oil in the lubricating oil cylinder is squeezed, passes through the exhaust pipe, the connecting pipe, the one-way valve A and the oil filling hole, and enters the oil-filling sliding frame, and the lubricating oil is brushed onto the outside of the sliding latch for lubrication, thereby ensuring normal locking.

[0015] The spring lock also provides a locking function. By turning the control hand wheel, the rotating hinge seat drives the pull rod to open the hinged push rods on both sides, and then the sliding lock is inserted into the pre-set socket in the door opening for corresponding locking. The spring lock cooperates with the external spring of the spring rod to automatically reset and lock the wedge lock. Conversely, when the rotating hinge seat needs to be restored to its original position and the spring lock is opened, just pull the pull ring to open the spring lock.

[0016] A lubricating oil cylinder is set up to switch the lubricating oil. Pour the lubricating oil into the lubricating oil cylinder, and then install it on the bottom of the threaded sleeve through a threaded connection to complete the installation. The lubricating oil cylinder is made of transparent material for easy observation. When the lubricating oil inside the lubricating oil cylinder is insufficient, the lubricating oil cylinder can be directly removed to replenish it. Different types of lubricating oil can be added to the inside of the lubricating oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model in a closed state.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in the open state.

[0019] Figure 3 It is an axonometric structural schematic diagram of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the connecting frame of the utility model.

[0021] Figure 5 It is a schematic diagram of the assembly structure of the connecting frame of the utility model.

[0022] Figure 6 It is a schematic diagram of the enlarged structure of the A part of the utility model.

[0023] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0024] 1. Main door body; 101. Control hand wheel; 102. Rotary hinge seat; 103. Pull rod; 104. Articulated push rod; 105. Sliding latch; 106. Wedge lock; 107. Guide block; 108. Spring lock; 109. Spring rod; 110. Pull ring; 2. Oil filling slide frame; 201. Oil filling hole; 202. One-way valve A; 3. Connecting frame; 301. Gas telescopic rod; 302. Connecting block; 303. One-way valve B; 304. Threaded sleeve; 305. Inlet pipe; 306. Exhaust pipe; 307. Connecting pipe; 4. Lubricating oil cylinder. DETAILED DESCRIPTION

[0025] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0026] Embodiment 1:

[0027] As attached Figure 1 To Attachment Figure 5 As shown:

[0028] The utility model provides a locking mechanism for a civil air defense door, comprising a main door body 1, wherein a sealing strip is arranged on the edge of the main door body 1, a control side of the main door body 1 is arranged as a recessed structure, a control hand wheel 101 is rotatably arranged in the middle of the control side of the main door body 1, a rotating hinge seat 102 is fixedly arranged outside the rotating shaft of the control hand wheel 101; two groups of pull rods 103 are hingedly arranged on both sides of the rotating hinge seat 102, a hinged push rod 104 is hingedly arranged on the other end of the pull rod 103, and two groups of sliding latches 105 are integrally arranged on the outside of the hinged push rod 104; four groups of oil-adding sliding frames 2 are fixedly arranged on the upper and lower ends of the control side of the main door body 1, and the sliding latches 105 are slidably connected to the oil-adding sliding frames 2; a connecting frame 3 is fixedly arranged on the control side of the main door body 1.

[0029] Among them, a wedge lock 106 is integrally arranged on the outside of the rotating hinge seat 102; a guide block 107 is fixedly arranged on the control side of the main door body 1; the main door body 1 also includes: a spring lock 108, a spring rod 109 is fixedly arranged on one side of the spring lock 108, the spring rod 109 is sleeved with a spring and passes through the guide block 107 and a pull ring 110 is fixedly arranged; the wedge lock 106 can contact the spring lock 108.

[0030] Among them, the top of the oil filling sliding frame 2 is a groove structure, and oil filling holes 201 are opened at the bottom corners of the groove structure; the external connection of the oil filling sliding frame 2 is provided with a one-way valve A202, and the one-way valve A202 is connected to the oil filling hole 201.

[0031] Among them, one side of the connecting frame 3 is a turning structure, and a gas telescopic rod 301 is fixedly arranged on one side of the turning point, and a connecting block 302 is fixedly arranged at the telescopic end of the gas telescopic rod 301, and the connecting block 302 is fixedly connected to the spring lock 108; a one-way valve B303 is fixedly arranged on the top of the turning point of the connecting frame 3; a threaded sleeve 304 is integrally arranged on the bottom of the connecting frame 3, and an air inlet pipe 305 and an exhaust pipe 306 are fixedly arranged at the position inside the threaded sleeve 304, and a connecting pipe 307 connected to the exhaust pipe 306 is arranged on the top of the connecting frame 3.

[0032] Among them, the air inlet pipe 305, the air telescopic rod 301 and the one-way valve B303 are connected.

[0033] Among them, a pipeline is set at the top of the connecting pipe 307 to communicate with four sets of one-way valves A202.

[0034] The lubricating oil cylinder 4 is fixedly arranged on the outside of the threaded sleeve 304 through a threaded connection, and the bottom of the exhaust pipe 306 is close to the inner bottom of the lubricating oil cylinder 4;

[0035] like Figure 1-Figure 4 As shown, the sliding latch 105 is positioned by inserting up and down, and the upper and lower sides of the door opening need to be provided in advance with lock grooves that can match the sliding latch 105 to ensure stable installation;

[0036] The control hand wheel 101 is turned, and the control hand wheel 101 cooperates with the rotating hinge seat 102 to drive the pull rod 103 to open the hinged push rods 104 on both sides, and then the sliding latch 105 is inserted into the pre-set socket of the door opening for stable locking.

[0037] Embodiment 2:

[0038] On the basis of Example 1, Figure 1-5 As shown, when the rotating hinge seat 102 needs to be restored to its original position, the pull ring 110 is pulled to remove the spring lock 108;

[0039] In addition, while pulling the pull ring 110, the spring lock 108 drives the connecting block 302 to squeeze the gas telescopic rod 301, and inputs the air inside the gas telescopic rod 301 into the air inlet pipe 305, and then inputs the air into the lubricating oil cylinder 4 through compression, so that the lubricating oil passes through the exhaust pipe 306, the connecting pipe 307 and the one-way valve A202, and enters the oil filling slide frame 2 through the oil filling hole 201, and the lubricating oil is brushed onto the outside of the sliding latch 105, thereby increasing the efficiency of locking and making the operation more convenient.

[0040] Embodiment 3:

[0041] On the basis of Example 1, Figure 4-Figure 5 As shown, the lubricating oil cylinder 4 is made of transparent material for easy observation. When the lubricating oil inside the lubricating oil cylinder 4 is insufficient, the lubricating oil cylinder 4 can be directly removed to replenish it. Different types of lubricating oil can be added to the inside of the lubricating oil cylinder 4, and the corresponding lubricating oil can be conveniently filled according to usage needs.

[0042] The specific usage and function of this embodiment are as follows:

[0043] In the utility model, when in use, the main door body 1 is hingedly installed at the door opening position and then normally opened;

[0044] When locking is required, the main door body 1 is rotated to close the door opening, and then the control hand wheel 101 is turned. The control hand wheel 101 cooperates with the rotating hinge seat 102 to drive the pull rod 103 to open the hinged push rods 104 on both sides, and then the sliding latch 105 is inserted into the pre-set socket of the door opening to perform the corresponding locking;

[0045] When the rotary hinge 102 rotates, the wedge lock 106 first pushes the spring lock 108, and then the spring lock 108 cooperates with the external spring of the spring rod 109 to automatically reset and lock the wedge lock 106. When the rotary hinge 102 needs to be restored, the pull ring 110 is pulled to pull out the spring lock 108;

[0046] Pour the lubricating oil into the lubricating oil cylinder 4, and then install it at the bottom of the threaded sleeve 304 through a threaded connection. While pulling the pull ring 110, the spring lock 108 drives the connecting block 302 to squeeze the gas telescopic rod 301, and the air inside the gas telescopic rod 301 is input into the air inlet pipe 305, and then input into the lubricating oil cylinder 4, and then the lubricating oil in the lubricating oil cylinder 4 is squeezed, passes through the exhaust pipe 306, the connecting pipe 307 and the one-way valve A202, and enters the oil filling slide frame 2 through the refueling hole 201, and the lubricating oil is brushed onto the outside of the sliding latch 105 for lubrication to ensure that the sliding latch 105 will not get stuck during the sliding process; the pull ring 110 can be rotated to directly pull it before closing the door lock to trigger it.

Claims

1. A locking mechanism for a civil air defense door, comprising: A main door body (1), wherein a sealing strip is arranged at the edge of the main door body (1), and a control side of the main door body (1) is arranged as a recessed structure, characterized in that a control hand wheel (101) is rotatably arranged in the middle of the control side of the main door body (1), and a rotating hinge seat (102) is fixedly arranged outside the rotating shaft of the control hand wheel (101); two groups of pull rods (103) are hingedly arranged on both sides of the rotating hinge seat (102), and a hinged push rod (104) is hingedly arranged at the other end of the pull rod (103), and two groups of sliding latches (105) are integrally arranged outside the hinged push rod (104); four groups of oil filling sliding frames (2) are fixedly arranged at the upper and lower ends of the control side of the main door body (1), and the sliding latches (105) are slidably connected to the oil filling sliding frames (2); a connecting frame (3) is fixedly arranged on the control side of the main door body (1).

2. A locking mechanism for a civil air defense door as claimed in claim 1, characterized in that: The rotating hinge seat (102) is integrally provided with a wedge lock (106) on the outside; a guide block (107) is fixedly provided on the control side of the main door body (1); the main door body (1) also includes: A spring lock (108) is fixedly provided with a spring rod (109) on one side of the spring lock (108), the spring rod (109) is sleeved with a spring and passes through a guide block (107) and is fixedly provided with a pull ring (110); the wedge lock (106) can contact the spring lock (108).

3. A locking mechanism for a civil air defense door as claimed in claim 1, characterized in that: The top of the oil filling sliding frame (2) is a groove structure, and oil filling holes (201) are provided at the bottom corners of the groove structure; a one-way valve A (202) is provided on the outside of the oil filling sliding frame (2), and the one-way valve A (202) is communicated with the oil filling hole (201).

4. A locking mechanism for a civil air defense door as claimed in claim 1, characterized in that: One side of the connecting frame (3) is a turning structure, a gas telescopic rod (301) is fixedly arranged on one side of the turning point, a connecting block (302) is fixedly arranged at the telescopic end of the gas telescopic rod (301), and the connecting block (302) is fixedly connected to the spring lock (108); a one-way valve B (303) is fixedly arranged on the top of the turning point of the connecting frame (3); a threaded sleeve (304) is integrally arranged on the bottom of the connecting frame (3), an air intake pipe (305) and an exhaust pipe (306) are fixedly arranged at a position inside the threaded sleeve (304), and a connecting pipe (307) connected to the exhaust pipe (306) is arranged on the top of the connecting frame (3).

5. A locking mechanism for a civil air defense door as claimed in claim 4, characterized in that: The air inlet pipe (305), the air telescopic rod (301) and the one-way valve B (303) are in communication.

6. A locking mechanism for a civil air defense door as claimed in claim 4, characterized in that: A pipeline is arranged at the top of the connecting pipe (307) and is connected to four sets of one-way valves A (202).

7. A locking mechanism for a civil air defense door as claimed in claim 4, characterized in that: A lubricating oil cylinder (4) is fixedly arranged on the outside of the threaded sleeve (304) via a threaded connection, and the bottom of the exhaust pipe (306) is close to the inner bottom of the lubricating oil cylinder (4).

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