KR200169560Y1 - Locking device of gas-tight door - Google Patents

Abstract

The present invention relates to a confidential door locking device, comprising a rotary means, a transmission means, a locking means and a locking groove using the power transmission function of the gear by the engagement of the rack and pinion, opening and closing the secret door, door and door frame of the secret door It can maintain the adhesion of the device sufficiently and ensure the reliability of use, so it can keep the confidentiality completely from the polluted external environment.

Description

LOCKING DEVICE OF GAS-TIGHT DOOR}

The present invention relates to an airtight door locking device, and more specifically, to open and close the airtight door by using the power transmission function of the gear using the rack and pinion, the airtight door to keep the indoor airtight from the polluted external environment. It relates to a locking device.

In general, the concept of protection in CBR is divided into personal protection and group protection. Personal protection is used to protect personal equipment such as gas masks that protect the face and respiratory system of humans and protective clothing that blocks the contaminated atmosphere. It refers to a form of temporary protection that is worn, and group protection refers to a type of protection by NBC group protection facilities designed for disaster protection, decontamination, and treatment under NBA for at least 14 days.

Figure 1 schematically shows the collective protection facility.

In the drawing, 1 is a barrier wall that blocks the outside or separates the inside of the building, 2 is a pipe through which air passes, and a dotted line indicates a pipe through which the contaminated area and the contaminated air pass, and the other part is clean air. Indicates the piping and area to which is supplied.

As shown in the collective protection facility, a gas particle filter 3 for purifying the polluted air outside the gas mask of the gas mask, a blower 4 for blowing the purified air into a clean area, and a blowing air amount Air flow rate measuring device (5) to be measured, a simulation device (6) that simulates a gas particle filter, an explosion-proof door (7) to prevent storm pressure from an external explosion, and external air contaminated by toxic agents It consists of an airtight door 8 for preventing the inflow of the room, various valves such as a shut-off valve, an explosion-proof valve, a pressure regulating valve, a flow regulating valve, and other measuring devices and control panels.

The airtight door 8 is an entrance and exit of the collective protection facility, and performs a function of primarily blocking polluted outside air, and is installed in the middle of a building to detoxify a human body and equipment, A confidential door is installed.

The hermetic door 8 is generally composed of a door, a door frame, a locking device and a gasket attached to the contact surface, and a compressive force due to strong adhesion at the time of locking is required for perfect airtightness by the gasket. In addition, since the special purpose of metabolic discharge is considered, reliability is required to keep the airtight stable even when an impact or the like is applied under abnormal conditions over a long period of time.

The present invention is devised to solve the problems of the prior art as described above, the object of the present invention is to maintain strong airtight from the contaminated external environment by the strong adhesion is generated at the time of locking, ensuring reliability even after long-term use To provide a confidential door lock that can be.

1 is a schematic diagram of a collective care facility.

Figure 2 is a perspective view of the airtight door locking device according to the present invention.

Figure 3 is an exploded perspective view of the rotating means in the airtight door locking device according to the present invention.

Figure 4 is an exploded perspective view of the transmission means in the hermetic door lock according to the present invention.

Figure 5a is an exploded perspective view of the locking means in the airtight door locking device according to the present invention.

Figure 5b is a partially cutaway front view of the clamp in the hermetic door lock according to the present invention.

Figure 6a is a perspective view of the locking groove in the airtight door lock according to the present invention.

Figure 6b is a front view of the locking means in the airtight door lock according to the present invention.

Figure 6c is a right longitudinal cross-sectional view of the locking groove in the airtight door lock according to the present invention.

* Description of the symbols for the main parts of the drawings *

8: secret door 8a: door

8b: door frame 10: locking device

20: rotation means 21: inner housing

22: axis of rotation 23: first pinion

24: inner handle 25: outer housing

26: outer handle 30: power transmission means

31: electric rack 32: upper rack

33: lower rack 34: upper drive shaft

35: lower drive shaft 36: upper stopper

37: lower stopper 40: locking means

41: bracket 42: locking shaft

43: second pinion 44: clamp

45: strap 46: roller

50: locking groove 51: inclined portion

52: locked part

In order to achieve the above object, the airtight door locking device of the present invention is installed on the door of the airtight door and the rotation means that the flat car is rotated together with the rotation of the handle, and the rotational force transmitted by the flat car in the vertical movement through the rack Transmission means for transmitting, the linear motion transmitted by the rack is converted into a rotational motion by a flat difference, the locking means for opening and closing of the airtight door, and is installed in the door frame of the airtight door wedge when the locking means is rotated and locked Characterized in that consisting of the locking groove formed inclined portion to act as.

Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

Figure 2 is a perspective view of the airtight door locking device according to the present invention, as shown in the locking device 10 is installed on the door (8a) of the airtight door (8) is a rotation means that the flat car is rotated together with the rotation of the handle 20, the power transmission means for transmitting the rotational force transmitted by the flat difference in the vertical motion through the rack, and the linear motion transmitted by the rack is converted into rotational movement by the other flat difference Locking groove formed with two locking means (40) to open and close the airtight door, the inclined portion is provided in the door frame (8b) of the airtight door and the wedge when the upper and lower locking means (40a, 40b) is rotated and locked ( 50).

As shown in the exploded perspective view in FIG. 3, the rotating means 20 has an inner housing 21 coaxially installed inside and outside of the door 8a and having a through hole 21a at the center in a flat plate shape. An outer housing 25, a rotating shaft 22 having a plurality of stepped portions having a round bar shape inserted into the through holes 21a and 25a, and an inner handle 24 that is extrapolated to and fixed to inner and outer ends of the rotating shaft 22. And the first pinion 23 and the collar having a predetermined module as a pinion gear positioned between the outer handle 26 and the inner housing 21 and the inner handle 24 and inserted into the rotation shaft 22. It consists of 23a. Preferably, both ends of the rotating shaft 22 are formed as four handle shafts as handle coupling portions 22a, and bearings (not shown) are provided inside the through holes 21a and 25a of the inner and outer housings 21 and 25. ) Is installed on the bearing seating portion 22b of the rotary shaft 22, and the center of the first pinion 23 is seated on the gear seating portion 22c of the rotary shaft 22 and coupled to a key (not shown). And configured to transmit power.

As shown in the exploded perspective view in FIG. 4, the transmission means 30 is a rack gear that is engaged with the first pinion 23 and is moved up and down, having a predetermined module, and an electric rack 31. An upper rod shaft 34 and a lower transmission shaft 35 of an annular shape fixed to the upper and lower portions of the 31 and a rack gear fixed to the ends of the upper transmission shaft 34 and the lower transmission shaft 35, respectively. It consists of an upper rack 32 and a lower rack 33 having a predetermined module. In addition, it is preferable that the upper stopper 36 and the lower stopper 37 are installed at both ends of the upper rack 32 and the lower rack 33 to move up and down.

As shown in FIG. 2, the locking means 40 includes an upper locking means 40a connected to the upper rack 32 and a lower locking means 40b connected to the lower rack 33. As shown in the exploded perspective view in FIG. 5A, the locking means 40a and 40b are second pinions 43 having a predetermined module as a pinion gear that is engaged with the upper rack 32 or the lower rack 33 to be rotated. ), A clamp 44 provided with a roller 46 so as to be self-rotating at one end of the flat strap 45 that is fixed and rotated with one side of the second pinion 43, and the second pinion 43; An insertion hole 41a is formed in the lower portion of the clamp 44, and a bracket 41 is attached to the inside of the hermetic door, and a round bar penetrating the insertion hole 41a, the second pinion 43, and the clamp 44. It consists of the locking shaft 42 of a shape. Preferably, a bearing (not shown) is installed between the second pinion 43 and the bracket 41, and the center of the second pinion 43 is the locking shaft 42 and the key (not shown). The power is transmitted by coupling to), and as shown in FIG. 5B, a roller fixing pin 46a is installed inside the roller 46.

The locking groove 50 is located on the inner side of the door frame (8b), as shown in Figure 2, the upper locking groove 50a and the lower locking means (40a) coupled to the lower locking means (40b) Composed of a lower locking groove (50b) coupled to each of the locking groove (50a, 50b), as shown in Figure 6a, is dug to a predetermined depth, the inclined having a predetermined inclination in the middle of one side of the inside It is composed of a portion 51 and a vertical locking portion 52 extending to the inclined portion (51).

Looking at the operation of the airtight door locking device according to the present invention having the configuration as described above are as follows.

In FIG. 2, when closing the airtight door and locking the locking device 10, first, the outside of the door 8a of the airtight door 8 is pushed into the door frame 8b, and the inner handle of the rotating means 20 is closed. 24 or the outer handle 26 to rotate the first pinion 23 coupled to the rotary shaft 22 and the key (not shown).

The upper rack 32 of the transmission means 30 engaged with the rotating first pinion 23 is moved downward, the upper rack 32 is connected to the electric rack 31 and the upper transmission shaft 34 and The lower rack 33 connected to the lower transmission shaft 36 is also moved downward, and the bottom surface of the lower rack 33 touches the lower stopper 37 installed on the inner lower portion of the door 8a to limit movement. The position of the lower stopper 37 is installed in an adjustable type to facilitate locking of the hermetic door.

The upper rack 32 which is moved downward as described above is connected to the upper locking means 40a, and the lower rack 33 is connected to the lower locking means 40b, and engages with the respective racks 32 and 33. The second pinion 43 is rotated about 90 degrees counterclockwise from the A position to the B position around the locking shaft 42 inserted coaxially with the bracket 41, as shown in FIG. 6B. In addition, the second pinion 43 and the strap 45 of the clamped clamp 44 are also coaxially rotated about 90 degrees from the A position to the B position along with the second pinion 43.

A roller 46 that rotates is installed at the tip of the clamp 44. As shown in FIG. 6C, the roller 46 is an inclined portion of the locking groove 50 formed inside the door frame 8b. Removing upward from the A position to the B position along the 51, at this time, the repelling force generated by the wedge action is generated in the inclined portion 51 and the roller 46, one side of the door (8a) is installed in the door frame (8b) It is in close contact with the threshold (not shown), and finally the roller 46 is seated on the locking portion 52 formed in the vertical plane and is also stably positioned against external impacts.

On the other hand, when opening the airtight door by rotating the inner handle 24 or the outer handle 26 in the opposite direction as described above to move the electric rack 31, the upper rack 32, the lower rack 33 and Then, the clamp 44 of the locking means 40 is rotated clockwise to release the locking device 10.

Therefore, the locking device 10 is operated by a simple operation of the handle, and by adopting the rack and pinion as the main component is possible the transmission of a large force can sufficiently maintain the close contact force of the door (8a) and the door frame (8b). have.

As described above, the present invention is to open and close the airtight door by using the power transmission function of the gear using the rack and pinion, it is possible to maintain the close contact force of the airtight door and to ensure the reliability of use, so as to contaminated external environment It is effective to keep the confidentiality completely.

Claims (5)

Rotating means is installed on the door of the airtight door and the rotation means to rotate the flat car together when the handle is rotated, the transmission means for transmitting the rotational force transmitted by the flat car to the vertical movement through the rack, and the linear motion transmitted by the rack It is converted into a rotational movement by the flat car, and the locking means for opening and closing the airtight door, and the airtight characterized in that the lock groove is formed in the door frame of the airtight door formed in the inclined portion is formed as a wedge when the locking means is rotated and locked Door lock. According to claim 1, The rotating means has a through-hole in the center in the shape of a flat plate and the inner and outer housings are installed coaxially in the inner and outer sides of the door door, and a plurality of round rods inserted into the through holes A first shaft having a stepped shaft, an inner handle and an outer handle which are extrapolated to and fixed to the inner and outer ends of the rotating shaft, and a pinion gear positioned between the inner housing and the inner handle and inserted into the rotating shaft. Confidential door lock, characterized in that consisting of a pinion. According to claim 1 or claim 2, wherein the transmission means is a rack gear that is engaged with the first pinion to move up and down, the electric rack having a predetermined module, and the rod-shaped fixed to the top and bottom of the electric rack The upper gear shaft and the lower gear shaft, the rack gear fixed to the ends of the upper gear shaft and the lower gear shaft, the upper rack and the lower rack having a predetermined module, and the upper rack and the lower rack of both ends are moved up and down An airtight door locking device, comprising an upper stopper and a lower stopper installed on the airtight door. According to claim 3, The locking means is composed of an upper locking means connected to the upper rack, and a lower locking means connected to the lower rack, each locking means is a pinion gear that is engaged with the upper and lower racks and rotates. A second pinion having a module, a clamp provided with a roller so as to be self-rotating at one end of a flat plate-shaped strap which is fixed and rotated with one side of the second pinion, and an insertion hole is formed at the bottom of the second pinion and the clamp. And a bracket attached to the inside of the hermetic door, and an annular locking shaft penetrating the insertion hole, the second pinion, and the clamp. According to claim 4, The locking groove is located on the inner surface of the door frame is composed of an upper locking groove coupled to the upper locking means, and a lower locking groove coupled to the lower locking means, each locking groove is a predetermined depth And an inclined portion having a predetermined inclination in the middle portion of one side thereof, and an inclined portion extending from the inclined portion and having a vertical locking portion.