KR101118911B1 - Door opening-closing device for reagent cabinet - Google Patents

Abstract

The present invention relates to a door opening and closing device for reagent storage.
The present invention has a simple structure for opening and closing the left and right doors of the reagent storage cabinet for storing chemicals or medicines or poisons used in the laboratory, and the opening and closing structure of the door is made of links to limit the use of the reagents in storage. In particular, the right door is not closed when the left door is opened, that is, the right door is automatically closed after the left door is closed.

Description

Door opening-closing Device For Reagent Cabinet

The present invention relates to a door opening and closing device for reagent storage, and in particular configured to close the left and right doors of the front of the case in order to safely store the reagents stored therein and to provide convenience for use.

In general, in a laboratory such as a university laboratory or a research institute, a reagent storage container for storing chemicals, medicines, or poisons has a simple structure without a separate exhaust vent, and when the door of the reagent storage chamber is closed for a long time, it is stored inside the reagent storage chamber. Gases are generated from the chemicals, drugs, or poisons that are in use and filled in the reagent storage chamber.When the door is opened, problems such as inhalation into the respiratory organs of the human body, fatal injuries due to the skin, or deterioration of the chemicals may occur. Volatile gases, such as volatile gases, pose a risk of fire or explosion, which has increased the frequency of safety accidents in the laboratory.

In order to solve this problem, the present applicant provides Utility Model Registration No. 20-0222546 (designated name: Reagent Storage Room), and manufactures each storage chamber constituting the inside of the reagent storage cabinet in a mutually open structure, and has a lower storage chamber. A vent hole is formed at the rear, and an upper duct ceiling is provided with an exhaust duct so that the air inside the reagent storage compartment can be discharged to the outside by an exhaust fan. It is possible to prevent, and to prevent accidents due to the gas generated from various reagents has a useful effect that can provide a safe laboratory atmosphere.

However, the door provided in front of the conventional reagent field has a structure in which one end of the door overlaps and closes each other, and delays heat transfer to the outside in case of explosion or fire that may occur during storage of dangerous substances such as chemicals, Damage was reduced. However, when one door is closed during use, the other door is closed. On the contrary, if the other door is closed first and one door is closed, the other door is locked to the other door so that the door is not completely closed. As a result, there is a problem in that the dangerous substances stored in the reagent chamber are exposed to the part, and in particular, a fire is transferred to a chemical product stored in the reagent cabinet to promote an explosion and a fire.

In order to solve this problem, Korean Patent No. 10-0944398 (name of the invention: cabinet door opening and closing device) was provided. When the door is unlocked, the left and right doors are sequentially closed without extra force, thereby ensuring the reliability of the product and facilitating the convenience of use. Also, the left and right doors are opened. When the door fixing means is installed and the room temperature is 78 ℃ or more, the door fixing means is separated and the left and right doors are automatically closed by the first and second dampers to prevent exposure of dangerous substances stored in the cabinet in case of fire. By blocking, there is another effect that can minimize the damage caused by the fire.

However, the prior art is that when the door is unlocked, the structure in which the left and right doors are opened and closed sequentially without applying a separate force is complicated, and the first and second movable members, which are structures for opening the door, are first and second. The hinge type is configured to be rotatable on the rod side of the damper and the inner side of the door, so that the opening angle is limited, and the user is limited in the use of the reagent stored.

The present invention has been made to solve such a conventional problem, the present invention is a simple structure for opening and closing the left and right doors of the reagent storage cabinet for storing chemicals or drugs or poisons used in the laboratory, It is an object of the present invention to provide a door opening and closing device for a reagent storage compartment configured to be not limited to the use of the reagents being stored as the opening angle is increased by the link structure.

Problem solving means of the present invention for achieving the above object is the left and right doors provided to be opened and closed on both sides of the case front; Door opening and closing means provided between the upper both sides of the case and the upper left and right door upper regions to sequentially close the left and right doors; A door opening and closing device for a reagent storage compartment provided between the left and right doors and a case, the door opening and holding member configured to maintain a door opening, wherein the door opening and closing means comprises: dampers mounted on both sides of the upper case; A damper member comprising a rod extending and retractably inserted into the damper; A link member for guiding the opening and closing of the left and right doors by pivoting the rear region in front of the rod so as to be rotatable forward and backward along the spaces formed on both sides of the case; Fixed left and right door inner upper regions, the front region of the link member being rotatably connected to support the left and right support pieces for opening and closing the left and right doors; And a door closing member provided in the upper region of the case and interlocked when opening and closing the left door to limit the closing of the right door so that the left and right doors are sequentially closed.

According to the present invention, the structure for opening and closing the left and right doors of the reagent storage cabinet for storing chemicals or medicines or poisons used in the laboratory is simple, the door opening and closing structure is made of a link type, the opening angle is large, the use of the reagents in storage In particular, the right door is not closed when the left door is opened, that is, the right door is automatically closed after the left door is closed. do.

1 is a perspective view of a door opening and closing device for a reagent storage in accordance with the present invention.
Figure 2 is a plan view of the door opening and closing device for the reagent storage in accordance with the present invention.
3 is a cross-sectional view taken along the line AA of FIG.
4 is an enlarged view of a portion “A” of FIG. 1.
5 is an enlarged view of a portion “B” of FIG. 1.
6 and 7 is a perspective view of the main portion of the door opening and closing device for the reagent storage in accordance with the present invention.
8 is an exploded perspective view of main parts of FIG. 7;
Figure 9 is a perspective view showing a door closing member of the door opening and closing device for the reagent storage in accordance with the present invention.
10 is an operation state of the door opening and closing device for the reagent storage in accordance with the present invention.
FIG. 11 is an enlarged view of portion “C” in FIG. 10;
12 is an enlarged view of a portion “D” in FIG. 10.
Figure 13a, 13b is an operating state diagram showing a closed state of the door opening and closing device for the reagent storage in accordance with the present invention.

Hereinafter, with reference to the accompanying drawings will be described a specific content for practicing the present invention.

1 is a perspective view of the door opening and closing device for the reagent storage container according to the present invention, FIG. 2 is a plan configuration diagram of the door opening and closing device for the reagent storage container according to the present invention, and FIG. 4 is an enlarged view of portion “A” of FIG. 1, and FIG. 5 is an enlarged view of portion “B” of FIG. 1.

As shown in Figures 1 to 5, the door opening and closing device for the reagent storage container according to the present invention is provided with a receiving space for storing dangerous goods, such as drugs required for the experiment therein, the front and the case 10 is open; ; Left and right doors 20 and 21 provided on both sides of the front surface of the case 10 to lock and open and close the front surface of the case 10; The door opening and closing means provided between the upper both sides of the case 10 and the upper and left and right doors 20 and 21 to support the door when opened, and the left and right doors 20 and 21 are sequentially closed. It consists of 30.

The door opening and closing means 30 includes dampers 32 and 33 mounted inclined on both sides of the upper portion of the case 10; A damper member (34) composed of rods (31) respectively inserted in the dampers (32) and (33) to extend and stretch back and forth; The rear region is rotatably connected to the front of the rod 31 of the damper member 34 so as to move forward and backward along the space portion 12 formed on both sides of the upper portion of the case 10 to move the left and right doors 20 and 21. Link member 40 for guiding the opening and closing of the; The front and rear regions of the link member 40 are rotatably connected to the upper and lower left and right doors 20 and 21 to support the opening and closing of the left and right doors 20 and 21. Fixing pieces 70 and 80; The door closing member 90 provided in the upper region of the case 10 and interlocked when the left door 20 is opened and closed to restrict the closing of the right door 21 to sequentially close the left and right doors 20 and 21. )

The rod 31 constituting the damper member 34 is inserted into the damper 32 and 33 so as to be extensible and stretchable. However, the rod 31 is mainly configured to close and close so as to apply a stretching function, that is, a force pulling backward. The force acts on the left and right doors 20 and 21.

The link member 40 includes a connector 51 fixed to the front of the rod 31, a left front link 53 connected to the rear of the connector 51 in a rotatable manner by a pivot pin 52, and a left front. A left link 50 made up of a pair of left rear links 56 and 57 which are pivotally connected between the upper and lower parts of the rear of the link 53 and the support fixing piece 70 by a rotation pin 52; The connector 61 fixed to the front of the rod 31, the right front link 63 connected to the rear of the connector 61 in a rotatable manner by the pivot pin 62, and the upper and lower parts behind the right front link 63. And a right link 60 formed of a pair of right rear links 66 and 67 connected in a rotatable manner with the pivot pin 62 between the front and rear portions of the support fixing piece 80.

At this time, the left front link 53 is formed of the first vertical link 54a, the horizontal link 54b formed horizontally on the upper vertical down part 54a, and the first link 54 of the first link 54. It consists of a second link 55 in close contact with the lower vertical portion 54a and the horizontal portion 54b.

And the right front link 63 is the first link 64 consisting of an up-vertical portion (64a) formed with a locking projection piece (64a-1) at the rear, and a horizontal portion (64b) formed horizontally at the bottom of the up-vertical portion (64a). )Wow; The second link 65 is in close contact with the upper vertical portion 64a and the horizontal portion 64b of the first link 64.

The left support piece 70 is a vertical portion 72 is fixed to the upper side of the left door 20; It is formed integrally with the inner rear region of the vertical portion 72, the left rear link (56, 57) is made of a close contact portion 74 is connected rotatably by the rotation pin (52).

The right supporting piece 80 is a vertical portion 82 is fixed to the upper inside the right door 21; It is formed integrally with the upper portion of the vertical portion 82, the right rear link (66, 67) is made of a close contact portion 84 connected to be rotatable by the rotation pin (62).

The door closing member (90) is provided in the upper region in front of the case (10), and a plurality of vertical support pieces (92) each having a horizontal moving hole (91); A horizontal moving piece (94) inserted into the horizontal moving hole (91) of the vertical support piece (92) so as to be movable left and right; It is provided between the vertical support piece 92 and the horizontal movable piece 94 is composed of an elastic spring 96 for elastically supporting the horizontal movable piece 94.

At this time, the horizontal movable piece 94 is formed with a vertical catching portion 94a on which the left supporting portion 74 is fastened to the left pivotal support portion 74 at the left end, and the right link 60 forms the right link 60 at the right end. A horizontal locking portion 94b is formed to engage the locking piece 64a-1 of the right side link 63, and a separation prevention portion 94c is provided in the left region of the horizontal locking portion 94b. 94) restricts the rightward movement.

Meanwhile, as shown in FIGS. 9 to 11, a door opening holding member 100 is provided between the left and right doors to which the force to be closed by the damper member 34 and the case is opened. .

The door opening and holding member 100 includes a fixture 110 fixed to both sides of the case 10; Protrusions 120 protruding from the vertical portions 72 and 82 constituting the left and right support ground pieces 70 and 80 of the left and right doors 20 and 21; A catch ring 130 and 140 to be caught between the fixture 110 and the protrusion 120; It consists of a connection separator plate 150 is caught between the hook 130, 140.

At this time, the connection separation plate 150 is coupled by soldering, if the room temperature is 78 ℃ or more made of a structure that is separated from each other in the nature of the material. The door opening holding member 100 is a freely used technique that is widely used, and a detailed description of the structure will be omitted.

A schematic operation state of the door opening and closing device for a reagent storage compartment of the present invention configured as described above will be described.

As shown in Figs. 1 to 3, the left and right doors 20 and 21 are provided to be opened and closed on both sides of the front surface of the case 10 for storing reagents (chemicals or drugs or poisons) necessary for experiments therein. Done.

That is, when the handle 1 of the right door 21 is gripped and the right door 21 is opened outward, that is, counterclockwise, the right door 21 opens and the right link constituting the link member 40. 60 is rotated to the front region through the space portion 12 of the case 10.

When this is schematically described, as shown in FIG. 10, as the right support piece 80 rotates counterclockwise with the right door 21, the close contact portion 84 and the right front of the right support piece 80 are rotated. The right rear link 66, 67 pivotably connected to the link 63 by the pivot pin 62 rotates in the counterclockwise direction about the pivot pins 62 on both sides, and the right door as shown in FIG. Move parallel to 21).

Accordingly, the right front link 63 between the right rear link 66 and 67 and the connector 51 in front of the rod 31 moves forward while rotating counterclockwise around the pivot pin 62. The rod 31 extends forward from the damper 33.

In this state, the right door 21 opened by the door opening holding member 100 is provided to maintain the opening of the door between the left and right doors and the case.

That is, as shown in FIG. 10, the connection separating plate 150 is formed between the fixture 110 of the case 10 and the protrusion 120 of the vertical portion 82 constituting the right support piece 80 of the right door 21. Hang hooks 130 and 140 connected by) to maintain the opening of the right door 21.

Next, as shown in FIGS. 10 and 12, when the left door 20 is opened in the clockwise direction, the left door 20 is opened and the left link 50 constituting the link member 40 is the case 10. It rotates to the front area through the space part 12 of).

When this is schematically described, as shown in FIG. 10, the left supporting ground piece 70 rotates clockwise with the left door 20, and the close pivoting portion 74 of the left supporting ground piece 70 and the front left side thereof are rotated. Left rear links 56 and 67 rotatably connected to the links 53 by the rotation pins 52 rotate clockwise around the rotation pins 52 on both sides, and the left supporting plate as shown in FIG. 70) and tilted.

Accordingly, the left front link 53 between the left rear link 56 and 57 and the connector 51 in front of the rod 31 moves forward while rotating clockwise about the pivot pin 52. 31 extends forward from the damper 34. At this time, the left door in the state in which the close contact portion 74 of the left support piece 70 is caught by the vertical locking portion 94a of the horizontal movable piece 94 constituting the door closing member 90 as shown in FIG. The latch is released by the opening of the 20, and the horizontal moving piece 94 is moved to the right by the restoring force of the elastic spring 96, so that the horizontal locking part 94b is moved to the right as much as possible (see FIG. 11).

In this state, as shown in FIG. 10, a connection separator plate between the fixture 110 of the case 10 and the protrusion 120 of the vertical portion 72 constituting the left support piece 70 of the left door 20 is formed. Hang hooks 130 and 140 connected to 150 to maintain the opening of the left door 21.

Meanwhile, when the left and right doors 20 and 21 are opened by the door opening holding member 100 and a fire is generated in an office or a laboratory, and the internal temperature is 78 ° C. or more, a soldering coupling plate ( 150) are separated from each other by the nature of the material.

At this time, when the connection separating plate 150 of the left door 20 is first separated, the rod 31 is pulled backward of the damper 32 by the elastic force of the damper member 34 pulling backward. You lose.

Accordingly, the left front link 53 between the connector 51 in front of the rod 31 is rotated in the counterclockwise direction about the pivot pin 52 to move rearward, and the left support jipe 70 is in close contact The left rear links 56 and 67, which are rotatably connected to the pivoting portion 74 and the left front link 53 by the pivot pins 52, rotate counterclockwise around the pivot pins 52 on both sides, As shown in Figure 2 it is positioned inclined with the left front link (53).

Accordingly, while the left support piece 70 rotates in the counterclockwise direction, the close rotation part 74 moves to the left in a state of being caught by the vertical catching part 94a of the horizontal moving piece 94 as shown in FIG. The engaging portion 94b is moved to the left as far as possible, and the elastic spring 96 installed between the vertical support piece 92 and the horizontal moving piece 94 is stretched to elastically support the horizontal moving piece 94. The left door 20 is closed in the closed state.

Thereafter, as shown in FIG. 13B, the rod 31 is pulled to the rear of the damper 33 by the elastic force of the damper member 34 which is separated and pulled backward. .

Accordingly, the right front link 63 between the connector 51 in front of the rod 31 is moved to the rear while rotating clockwise around the pivot pin 62, the close contact portion of the left support piece 80 The right rear link 66, 67, which is pivotally connected to the 84 and the right front link 63 by the pivot pin 62, rotates clockwise around the pivot pin 62 on both sides, and in FIG. As inclined with the right front link (63).

Accordingly, the right ground support piece 80 and the right door 21 are closed while being rotated in a clockwise direction and close to the left door 20.

Meanwhile, as shown in FIG. 13B, the left door 20 is opened, that is, the horizontal moving piece 94 of the door closing member 90 moves to the right side of the vertical support piece 92 by the restoring force of the elastic spring 96. If the right door 21 is closed while the horizontal locking portion 94b is moved to the right as much as possible, the obstacle formed in the upright portion 64a of the first link 64 constituting the right front link 63 is formed. The piece 64a-1 is caught in the horizontal locking portion 94b so that the right door 21 does not close.

Thereafter, when the left door 20 is closed, the horizontal moving piece 94 of the door closing member 90 is elastically moved to the left side of the vertical support piece 92 so that the horizontal locking portion 94b moves to the left as much as possible. In this case, the locking door piece 64a-1 formed on the upright portion 64a of the first link 64 constituting the right front link 63 is released from the horizontal locking portion 94b. (21) closes quickly.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Changes, changes, and additions should be considered to be within the scope of the following claims.

10 case 12 space part
20,21: left and right door 30: door opening and closing means
31: rod 32, 33: damper
34: damper member 40: link member
45,61 connector 52,62 pivot pin
53,63: Left, right link 56,57: Left, right link
50,60: left, right link 64,65: 1st, 2nd link
64a: upward vertical portion 64a-1: obstacle
64b: horizontal section 70, 80: left and right ground supporters
72: vertical part 74: close contact part
90: door closing member 91: horizontal movement hole
92: vertical support piece 94: horizontal moving piece
94a: vertical locking portion 94b: horizontal locking portion
96: elastic spring

Claims (5)

delete Left and right doors 20 and 21 provided on the front of the case 10 to be opened and closed;
A damper member (34) formed of dampers (32) (33) mounted on both sides of the upper portion of the case (10), and a rod (31) inserted into the damper (32) (33) to extend and stretch; In order to guide the opening and closing of the left and right doors 20 and 21 by rotating the rear region in front of the rod 31 so as to be rotated forward and backward along the spaces 12 on both sides of the upper case 10. Link member 40 for; The left and right doors 20 and 21 are fixed to the inner upper region, and the front region of the link member 40 is rotatably connected to support the opening and closing of the left and right doors 20 and 21, The right ground support piece 70, 80; The door closing member provided in the upper region of the case 10 and interlocked when the left door 20 is opened and closed to restrict the closing of the right door 21 to sequentially close the left and right doors 20 and 21 ( A door opening and closing means (30) consisting of 90; And
In the left and right doors 20, 21 and the case 10 is provided between the door opening and closing device for the reagent storage chamber consisting of a door opening and holding member 100 for maintaining the opening of the door,
The link member 40 is
A connector 51 fixed to the front of the rod 31; A left front link 53 connected to the front of the connector 51 in a rotatable manner by a pivot pin 52; A left link (50) formed of a left rear link (56) (57) connected forward and backward between the upper and lower parts of the left front link (53) and the left support piece (70) by a rotation pin (52); And
A connector 61 fixed to the front of the rod 31; A right front link 63 connected to the front of the connector 61 in a rotatable manner by a pivot pin 62; A right link 60 formed of a right rear link 66 and 67 connected forward and backward between the upper and lower parts of the rear of the right front link 63 and the right supporting plate 80 by a rotation pin 62;
Reagent storage door door opening and closing device comprising a. The method of claim 2, wherein the right front link (63)
A first link 64 formed of an upward vertical portion 64a having a locking protrusion piece 64a-1 formed at a rear side thereof, and a horizontal portion 64b formed horizontally at a lower end of the upward vertical portion 64a;
Reagent storage door door opening and closing device characterized in that consisting of a second link (65) in close contact with the upper vertical portion (64a) and the upper portion of the horizontal portion (64b) of the first link (64). According to claim 2, wherein the left support base piece 70
A vertical portion 72 fixed to an upper portion of the left door 20;
Reagent storage, characterized in that formed integrally with the inner rear region of the vertical portion 72, the left rear link (56, 57) is composed of a close contact portion 74 is pivotally connected by the rotation pin (52) Enteric door opener. The method of claim 2, wherein the door closing member 90
A plurality of vertical support pieces 92 provided in an upper upper region of the case 10 and having horizontal moving holes 91 formed therein;
The horizontal movable piece 91 is inserted into the horizontal movable hole 91 of the vertical support piece 92 so as to be movable left and right, and a vertical catching portion 94a is formed at the left end, and a horizontal catching portion 94b is formed at the right end. 94;
Receptacle door door opening and closing device, characterized in that consisting of an elastic spring 96 is installed between the vertical support piece 92 and the horizontal movable piece 94 to elastically support the horizontal movable piece (94).

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