KR102566110B1 - Chamber service lock with safety locking device - Google Patents

Abstract

The present invention is a chamber service lock for delivering articles to the inside of a medical hyperbaric oxygen chamber or an industrial decompression chamber, wherein the chamber service lock includes an external locking door (131) for opening and closing an inlet for delivering articles; A bridge panel 140 that functions as an opening/closing handle of the external locking door 131 while fixing the external locking door 131 to the service lock body 110; One side is inserted and fixed to the service lock body 110, and includes a locking cover 150 integrally equipped with on/off and safety locking means of the external locking door 131.
The chamber service lock according to the present invention integrates the locking cover handle 151 and the safety locking device 152 in the locking cover 150, so that the external locking door 131 can be opened and closed easily and safely while the chamber is in use. there is.

Description

Chamber service lock with safety lock {CHAMBER SERVICE LOCK WITH SAFETY LOCKING DEVICE}

The present invention relates to a chamber service lock, and more particularly, to a service lock attached to a medical hyperbaric oxygen chamber or an industrial decompression chamber, and to a chamber service lock equipped with an insert-type safety lock device for securing a door from being arbitrarily opened.

A medical hyperbaric oxygen chamber to treat carbon monoxide poisoning, burns, or diving sickness, or an industrial decompression chamber to prevent decompression sickness (submersible sickness) is used by applying a pressure higher than atmospheric pressure with a person inside the chamber.

In this way, when a chamber having an internal pressure higher than atmospheric pressure needs to be delivered urgently to a person inside the chamber while the chamber is in use, the pressure inside the chamber must be lowered to the atmospheric pressure again, so it takes a lot of time to deliver the goods. Difficulty coping with the situation.

For this reason, a chamber service lock called a medical lock is separately attached to a hyperbaric chamber such as a medical hyperbaric oxygen chamber or an industrial decompression chamber.

The chamber service lock is a space separately attached to the high-pressure chamber and serves as a passage connecting the inside and outside of the chamber. Since the pressure inside and outside the high-pressure chamber is different, careful operation of the chamber service lock is required.

Accordingly, it is urgent to develop a chamber service lock equipped with a safety device that can be operated easily and reliably even under high pressure inside the chamber.

Republic of Korea Patent Publication No. 10-2018-0026616 (2018. 3. 13.) Republic of Korea Patent Registration No. 10-2064067 (2020. 1. 8.)

The main object of the present invention is to provide a chamber service lock that maximizes the convenience and safety of operation by integrating a safety lock device into the handle of the chamber service lock.

In order to achieve the object of the present invention described above, the present invention is a chamber service lock for delivering an article to the inside of a medical hyperbaric oxygen chamber or an industrial decompression chamber, wherein the chamber service lock is external to open and close the inlet for delivering the article. locking door; A bridge panel that functions as an opening/closing handle of the external locking door while fixing the external locking door to the service lock body; One side is inserted and fixed to the service lock body and includes a locking cover integrally equipped with an on/off and safety locking means of an external locking door.

Here, the on/off and safety locking of the external locking door is performed by inserting the safety locking head of the safety locking device provided in the locking cover handle into the safety locking hole of the external locking door.

Also, here, the head of the safety locking head is formed in a round flat plate shape.

Also, here, a spring is inserted around the safety locking head.

In addition, here, the bridge panel further includes a notification hole to check the open (OPEN) or closed (CLOSE) state of the external locking door on one side.

In addition, a plurality of projections are provided at equal intervals along one side circumference of the locking cover so that the open or closed state of the external locking door can be checked through the notification hole, and one side projection has a closed and open Recognition stickers of colors representing the are attached.

In the chamber service lock equipped with the safety locking device according to the present invention, the locking cover handle and the safety locking device are integrated with the locking cover, so that the external locking door can be opened and closed easily and safely while the chamber is in use.

In addition, the OPEN or CLOSE position of the locking cover can be easily checked with the naked eye through the notification hole provided in the bridge panel, so that opening and closing errors of the external locking door during use of the chamber can be prevented in advance.

1 is a plan view showing a chamber in which a chamber service lock according to the present invention is installed;
2 is a perspective view showing a chamber service lock according to the present invention;
3 is an exploded perspective view showing a chamber service lock according to the present invention;
4 is a front view showing a chamber service lock according to the present invention;
5 is a perspective view showing a locking curve of a chamber service lock according to the present invention;
6A and 6B are assembled and disassembled perspective views of the insertion type safety locking device according to the present invention, respectively;
7A to 7C are front views for explaining the operation method of the insertion type safety locking device according to the present invention, respectively;
8 is an exploded perspective view showing the structure of a bridge panel of a chamber service lock according to the present invention;
9A and 9B are front views illustrating that the opening and closing position of the locking cover can be visually confirmed through the notification groove provided in the bridge panel according to the present invention, respectively;
10 is a front view showing a state in which a Teflon seal for lubrication is provided around the locking cover according to the present invention and a door seal is provided to prevent leakage of internal pressure in the service lock body;
11 is a perspective view showing an open state of the external locking door of the chamber service lock according to the present invention.

Hereinafter, a preferred embodiment will be described in detail with respect to the configuration and operation of the chamber service lock equipped with the safety locking device of the present invention.

The terms or words used below should not be construed as being limited to a common or dictionary meaning, and the inventor may appropriately define the concept of the term in order to best describe his or her invention. It should be interpreted as meaning and concept consistent with the technical idea of the invention.

1 is a plan view showing a chamber in which a chamber service lock according to the present invention is installed, FIG. 2 is a perspective view showing a chamber service lock according to the present invention, and FIG. 3 is an exploded perspective view showing a chamber service lock according to the present invention.

Figure 4 is a front view showing a chamber service lock according to the present invention, Figure 5 is a perspective view showing a locking curve of the chamber service lock according to the present invention, Figures 6A and 6B are assembled insert type safety lock device according to the present invention, respectively It is a perspective view and an isolated perspective view.

7A to 7C are front views for explaining the operation method of the insertion type safety locking device according to the present invention, and FIG. 8 is an exploded perspective view showing the structure of the bridge panel of the chamber service lock according to the present invention, and FIGS. 9A and 7C 9B is a front view illustrating that the opening/closing position of the locking cover can be visually confirmed through the notification groove provided in the bridge panel according to the present invention.

10 is a front view showing a state in which a Teflon seal for lubrication is provided around the locking cover according to the present invention and a door seal for preventing leakage of internal pressure is provided in the service lock body, and FIG. 11 is a chamber service according to the present invention. It is a perspective view showing the open state of the external locking door of the lock.

First, referring to FIG. 1, the chamber service lock 100 is a passage connecting the inside and outside of the chamber 10, and through this passage, relatively small items such as medicines are delivered to the user inside the chamber. . When the pressurization of the chamber 10 starts, the internal pressure of the chamber 10 increases to become greater than the external atmospheric pressure.

In general, the hyperbaric oxygen chamber mainly uses a pressure of 1 to 3 ATA (absolute pressure), and the decompression chamber mainly uses a pressure in the range of 1 to 6 ATA. Since the inside of the chamber 10 is in a pressurized state, careful manipulation of the chamber service lock 100 is required to deliver the product to the user inside.

1 and 2, the chamber service lock 100 penetrates one side of the chamber 10 and functions as a passage connecting the inside and outside of the chamber and is fixedly attached to the chamber 10 by welding. It includes a lock body 110, an internal locking unit 120 operable from the inside of the chamber 10, and an external locking unit 130 operable from the outside of the chamber 10.

3, 4 and 11, the service lock body 110 is a hollow cylindrical shape, and a large hinge bracket 111 having a cross-sectional shape of an 'L' on one side of the outer circumferential surface is It is fixedly attached at regular intervals, and a small hinge bracket 112 is fixedly attached to the other side of the outer circumferential surface of the service lock body 110 facing each other with the large hinge bracket 111 at regular intervals up and down.

In addition, along the inlet side of the service lock body 110, that is, along the front circumference, a processing portion 113 for inserting and removing a locking cover 150 to be described later is formed at a certain depth, and this processing portion 113 A door seal (see 114 in FIG. 10 ) is provided to prevent leakage of internal pressure.

At the upper end of the service lock body 110, a pressure control port 12, a pressure gauge 13, a pressure discharge valve 14, and a pressure inlet valve 15 used for a hyperbaric oxygen chamber or a decompression chamber are installed, respectively. The inlet valve 15 is connected to the inside of the chamber 10 by a pipe.

The internal locking unit 120 includes an internal locking door 121 and a door handle 122. On one side of the outer circumferential surface of the inner locking door 121, a pair of guide brackets 123 are fixedly attached at regular intervals up and down, so that the third coupling bar 124 connects the small hinge bracket 112 and the guide bracket 123. The door handle 122 is fixedly attached to the outer surface, that is, the rear surface of the inner locking door 121, and is used for the purpose of opening and closing the inner locking door 121 by holding it with a hand and pushing or pulling.

The external locking unit 130 includes an external locking door 131, a bridge panel 140, and a locking cover 150. The external locking door 131 is used as a means for opening and closing the entrance of the chamber service lock for delivering goods, and has a plurality of (four in the present invention) projections 132 along the outer circumferential surface in the form of a disc having a predetermined thickness at equal intervals. It is formed integrally, and a safety locking hole 133 is formed on one side of one of the projections 132, and a safety locking device 152 mounted on the locking cover handle 151 to be described later is inserted into the safety locking hole 133. The operating conditions will be described later.

In addition, a pair of guide brackets 135 for penetrating a first coupling bar 134 to be described later are fixedly attached to the outer surface, that is, the front surface of the external locking door 131 at a predetermined distance above and below.

The bridge panel 140 is in the form of a substantially flat plate, and the second coupling bar 141 penetrates the upper hinge bracket 111 of the service lock body 110 and one side of the bridge panel 140 in the vertical direction It is connected to the lower side large hinge bracket 111.

In addition, the first coupling rod 134 vertically penetrates the upper guide bracket 135 of the external locking door 131 and the other side of the bridge panel 140 and is connected to the lower guide bracket 135.

In addition, a pair of upper and lower openings 142 are formed at the center of the bridge panel 140 so as to face each other, and holding the rectangular handle 143 provided between the openings 142, the bridge panel 140 and It is possible to open and close the external locking door 131 by rotating the assembly with the external locking door 131 left and right.

On the other hand, referring to FIGS. 2 and 3, the bridge panel 140 has a notification hole 144 in a curved shape with a predetermined curvature on one side, so as shown in FIGS. 9A and 9B, which will be described later When the locking cover 150 is in an open (OPEN) position or a closed (CLOSE) position, it can be visually confirmed.

3 and 5, the locking cover 150 closes the external locking door 131 to the service lock body 110 to prevent leakage of internal pressure and safely locks the external locking door 131. Device 152 is included. That is, the locking cover 150 can lock or open the external locking door 131 using the locking cover handle 151, and service the external locking door 131 by manipulating the safety locking device 152 when in a locked state. It can be completely fixed to the lock body 110.

The locking cover 150 may be bolted (not shown) to the coupling plate 153 in a state in which the two semicircular parts are in contact with each other so as to be easily mounted on the service lock body 110, or may be molded into a ring-shaped unitary structure. can

One side of the locking cover 150 is inserted into the processing part 113 of the service lock body 110 at a certain depth and fixed to the service lock body 110, and a plurality of protrusions 154 are formed along the circumference of the other side. It is integrally formed at intervals, and a recognition sticker (see 155 in FIG. 5 ) of a color indicating closed and open, for example, red, is attached to one side protrusion 154 .

The protrusion 154 of the locking cover 150 overlaps in parallel with the protrusion 132 of the external locking door 131 when in a locked state, and at this time, the external locking door 131 is a door provided in the service lock body 110. It is in close contact with the seal 114 to prevent pressure leakage inside the chamber service lock 100.

6A and 6B, the locking cover handle 151 simultaneously performs the ON/OFF role of the external locking door 131 and the safety locking role together with the safety locking device 152 therein. do. The locking cover handle 151 is fixed to the locking cover 150 by welding in the form of a hollow metal tube.

The safety locking device 152 inserted from the top of the locking cover handle 151 has a roughly 'T' cross-sectional shape, and the head coupling part 152b of the safety locking device 152 protrudes as a predetermined length integrally at the bottom, locking From the bottom of the cover handle 151, a safety locking head 152a having an inverted 'T' cross section is screwed to the head coupling part 152b, and a spring 152c is inserted around the safety locking head 152a. When the safety lock is released, the safety locking device 152 can be easily lifted up.

The head of the safety locking head 152a has a round flat plate shape, which is to prevent the safety locking device 152 from being separated from the locking cover handle 151.

3A and 7A to 7C, the external locking door 131 when the protrusion 154 provided on the locking cover 150 is in a position where it does not interfere with the protrusion 132 of the external locking door 131 is in an OPEN state, and when the external locking door 131 is closed in this state (FIG. 7A), the position of the projection 132 of the external locking door is closer than the projection 154 of the locking cover 150 (service lock body). side) is located.

At this time, when the locking cover handle 151 is pushed to the left, each of the protrusions 132 and 154 stand in a position where they overlap in parallel. At this time, the safety locking device 152 inside the locking cover handle 151 and the external locking door 131 The safety locking hole 133 of ) is positioned on a straight line (see FIG. 7B).

At this time, by pressing the safety locking device 152, the safety locking head 152a is inserted into the safety locking hole 133 of the external locking door 131 and is completely fixed (see FIG. 7C).

Referring to FIG. 10, the locking cover handle 151 has a Teflon seal 156 part in order to smoothly slide left and right in the transverse direction while being fixed to the locking cover 150, and the external locking door 131 is A door seal 114 is provided on the service lock body 110 to prevent leakage of internal pressure when the chamber service lock 100 is in a closed state.

In order to open the external locking door 131 according to the present invention, the pressure inside the service lock body 110 should be equal to atmospheric pressure. At this time, the inner locking door 121 is in a closed state. By opening the pressure release valve 14, the pressure inside the service lock body 110 is discharged to equal atmospheric pressure. Whether the pressure inside the service lock body 110 is the same as atmospheric pressure is made by confirming that the scale of the pressure gauge 13 is located at '0'.

Thereafter, the safety locking device 152 of the locking cover handle 151 is pulled upward to separate it from the safety locking hole 133 of the external locking door 131, and then the locking cover handle 151 is moved to the right side. . At this time, since the locking cover handle 151 is fixed to the locking cover 150, the locking cover 150 also rotates.

When a color appears on the OPEN display side through the notification hole 144, the external locking door 131 is opened by grabbing the handle 143 of the bridge panel 140 and pulling it. FIG. 11 shows the external locking door 131 ) indicates an open state.

Thereafter, with the pressure relief valve 14 in the closed state, necessary items such as medicines are put into the service lock body 110 and the external locking door 131 is closed. Subsequently, by moving the locking cover handle 151 in the transverse direction to the left, when a color appears on the CLOSE display side through the notification hole 144, the safety lock 152 is pushed downward to open the external locking door 131. completely fixed.

Thereafter, after opening the pressure inlet valve 15 connected to the inside of the chamber 10 and confirming that the scale of the pressure gauge 13 has increased by the amount of the internal pressure, this is notified to the user inside the chamber 10. Then, the user inside the chamber 10 opens the inner locking door 121 and withdraws the goods placed inside the service lock body 110, and then closes the inner locking door 121.

According to the above process, the chamber service lock 100 according to the present invention integrates the locking cover handle 151 and the safety locking device 152 to the locking cover 150, so that the external locking door ( 131) can be performed simply and safely.

In addition, the open (OPEN) or closed (CLOSE) position of the locking cover 150 can be easily checked with the naked eye through the notification hole 144 provided in the bridge panel 140, so that the external locking door while the chamber 10 is in use Opening and closing errors of (131) can be prevented in advance.

As described above, the chamber service lock equipped with the safety locking device according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed herein, and is within the scope of the technical idea of the present invention. It is added that various modifications may be made by those skilled in the art.

10: chamber
11: entrance door 12: pressure control port 13: pressure gauge 14: pressure release valve
15: pressure inlet valve
100: chamber service lock 110: service lock body 111: large hinge bracket
112: cow hinge bracket 113: processing unit 114: door seal
120: internal locking unit 121: internal locking door 122: door handle
123: guide bracket 124: third coupling bar
130: external locking unit 131: external locking door 132: projection 133: safety lock hole
134: first coupling bar 135: guide bracket
140: bridge panel 141: second coupling bar 142: opening 143: handle
144: notification hall
150: locking cover 151: locking cover handle 152: safety lock
152a: safety locking head 152b: head coupling part 152c: spring 153: coupling plate
154: protrusion 155: recognition sticker 156: Teflon seal

Claims (6)

In the chamber service lock for delivering items to the inside of a medical hyperbaric oxygen chamber or an industrial decompression chamber,
The chamber service lock functions as a passage connecting the inside and outside of the chamber through one side of the chamber, and the service lock body 110 fixedly attached to the chamber, and the internal locking unit 120 operable from the inside of the chamber And an external locking unit 130 that can be operated from the outside of the chamber,
The external locking unit 130 is:
It is used as a means to open and close the entrance of the chamber service lock in the form of a disk, and a plurality of protrusions 132 are integrally formed at equal intervals along the outer circumferential surface, and a safety lock hole 133 is formed on one side of any one protrusion 132. With an external locking door 131;
It is connected to the hinge bracket 111 of the service lock body 110 and the guide bracket 135 of the external locking door 131 in the form of a flat plate, and it is possible to open and close the external locking door 131 by rotating the provided handle 143 a bridge panel 140;
In the form of a ring, one side is inserted into the service lock body 110 and fixed to the service lock body 110, and along the circumference of the other side, a plurality of projections 154 are integrally formed at equal intervals and fixed to protrude from the outer circumferential surface. The external locking door 131 can be locked or opened using the hollow tubular handle 151, and when locked, the safety lock device 152 inside the hollow tubular handle 151 is operated to A chamber service lock equipped with a safety locking device consisting of a locking cover 150 capable of completely fixing the external locking door 131 to the service lock body 110. According to claim 1,
When the protrusion 154 provided on the locking cover 150 is in a position where it does not interfere with the protrusion 132 of the external locking door 131, the external locking door 131 is in an OPEN state, and in this state When the external locking door 131 is closed, the projection 132 of the external locking door is located inside (toward the service lock body) than the projection 154 of the locking cover 150, a chamber service lock equipped with a safety lock device. . According to claim 2,
When the protrusion 132 of the external locking door is located inside (toward the service lock body) than the protrusion 154 of the locking cover 150, when the locking cover handle 151 is operated, each protrusion 132, 154 ) stand at a position overlapping in parallel. At this time, the safety locking device 152 inside the locking cover handle 151 and the safety locking hole 133 of the external locking door 131 are located on a straight line, and at this time, the safety lock A chamber service lock equipped with a safety locking device in which the safety locking head 152a is inserted into the safety locking hole 133 of the external locking door 131 and completely fixed by pressing the device 152. According to claim 1,
A chamber service lock with a safety lock device further comprising a notification hole 144 for checking the open or closed state of the external locking door 131 on one side of the bridge panel 140. According to claim 4,
A plurality of protrusions 154 are formed at equal intervals along one circumference of the locking cover 150 so that the open or closed state of the external locking door 131 can be confirmed through the notification hole 144. A chamber service lock equipped with a safety locking device, provided with a recognition sticker 155 of a color indicating closing and opening on any one side projection 154. According to claim 5,
When a color appears on the OPEN display side through the notification hole 144, the external locking door 131 is opened by manipulating the handle 143 of the bridge panel 140, a chamber service lock equipped with a safety lock device. .