Region blocking device

Abstract

The utility model provides an area blocking device which is used for being installed on a sterilization bin to lock a bin door and comprises an installation cylinder which is arranged on the sterilization bin and extends into the sterilization bin, a through hole is formed in the installation cylinder, an installation seat is arranged on the installation cylinder, a piston is arranged in the installation cylinder in a sliding mode along the axis of the installation cylinder, and the piston is arranged in the sterilization bin. An annular groove aligned with the through hole is formed in the piston, a fixing base is arranged on the bin door, a plug pin is arranged in the mounting base in a sliding mode, one end of the plug pin is clamped in the through hole, and the other end of the plug pin can penetrate into the fixing base. The device can effectively avoid accidents caused by opening of the bin door due to misoperation of personnel or failure of an electronic lock of the bin door.

Description

Technical Field

[0001] The utility model relates to the technical field of culture medium sterilization, in particular to a regional barrier device. Background Art

[0002] In the process of tissue culture, breeding and seedling raising, tools, utensils, culture media and other items that need to be sterilized or cleaned and dried are used. Sterilization chambers are usually used to sterilize the above items. Sterilizers are generally composed of containers, piping systems and control systems. They are equipment that uses saturated steam to sterilize items.

[0003] Since sterilization is carried out under high temperature and high pressure, although existing equipment is generally equipped with protective devices to ensure that the door of the disinfection chamber cannot be opened before the temperature drops and the pressure is released, it is inevitable that equipment failure, accidental entry of personnel, and misoperation may cause the door of the disinfection chamber to be opened before the pressure is completely released in the working environment, leaving hidden dangers to the safety of equipment and personnel.

[0004] Therefore, in view of this, a regional barrier device is provided to prevent the door from being opened due to various reasons before the pressure relief of the sterilization chamber is completed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a regional barrier device to solve the technical problem raised in the above background technology that the existing sterilization chamber is prone to opening the door due to human error or equipment failure before cooling and pressure relief during use, thus causing safety accidents.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution, a regional barrier device, which is used to be installed on the sterilization chamber to lock the chamber door, including:

[0007] A mounting tube, which is arranged on the sterilization chamber and extends into the sterilization chamber, wherein a through hole is formed on the mounting tube and a mounting seat is provided on the mounting tube;

[0008] A piston is slidably disposed in the mounting cylinder along the axis of the mounting cylinder, and an annular groove aligned with the through hole is formed on the piston;

[0009] A fixing seat, arranged on the door; and

[0010] The latch is slidably arranged in the mounting seat, one end of which is clamped in the through hole and the other end of which can be inserted into the fixing seat.

[0011] In a preferred embodiment, the mounting cylinder is connected to the sterilization chamber via a flange, a first sealing ring is provided between the flange and the sterilization chamber, and the mounting seat is provided on the flange.

[0012] In a preferred embodiment, both ends of the piston are provided with second sealing rings abutting against the inner wall of the mounting tube.

[0013] In a preferred embodiment, a threaded sleeve is provided at the end of the mounting cylinder, a shielding cap is screwed on the threaded sleeve, an opening rod is provided on the piston, the opening rod is passed through the threaded sleeve, and an adjustment hole is opened at the end of the opening rod.

[0014] In a preferred embodiment, two groups of positioning ridges are provided on the sterilization chamber, and the mounting seat is clamped between the two groups of positioning ridges.

[0015] In a preferred embodiment, the latch is rotatably inserted into the mounting seat, an opening piece is provided on the latch, and limiting frames are provided on opposite sides of the mounting seat and the fixed seat, and the opening piece can be clamped in the limiting frame.

[0016] In a preferred embodiment, a limiting block capable of abutting against the piston is disposed in the installation cylinder, and an elastic member is disposed between the piston and the installation cylinder.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When the device is in use, the mounting cylinder is fixed on the sterilization chamber and one end of the cylinder is extended into the sterilization chamber. After the chamber door is closed, the sliding latch makes one end of the cylinder pass through the fixing seat. When the sterilization chamber is in use, the interior is in a high-pressure state to push the piston to slide in the mounting cylinder, and the through hole is closed by the piston. At this time, the latch is blocked by the piston and cannot slide, and is always stuck in the fixing seat to fix the position of the chamber door. When the sterilization chamber is completely depressurized, the pressure in the sterilization chamber returns to normal, so that the piston is reset, and the sliding latch can make one end of the cylinder pass through the annular groove to detach from the fixing seat, thereby effectively avoiding accidents caused by the chamber door being opened due to misoperation by personnel or failure of the electronic lock of the chamber door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a regional barrier device provided by the utility model;

[0021] Figure 2 It is a cross-sectional view of a regional barrier device of the utility model;

[0022] Figure 3This is a schematic diagram of the disassembled structure of the flange and its internal parts in a regional isolation device of the utility model;

[0023] Reference numerals:

[0024] 101, sterilization chamber; 102, chamber door; 103, positioning ridge; 104, fixing seat; 105, limiting block; 106, elastic member;

[0025] 201, flange; 202, first sealing ring; 203, mounting tube; 204, through hole; 205, threaded sleeve; 206, shielding cap; 207, mounting seat; 208, limiting frame;

[0026] 301, piston; 302, annular groove; 303, second sealing ring; 304, opening rod;

[0027] 401. Latch; 402. Opening piece. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0029] Example:

[0030] like Figure 1 , 2 As shown, the utility model provides a regional barrier device, which is used to be installed on the sterilization chamber 101 to lock the chamber door 102, including a mounting tube 203 arranged on the sterilization chamber 101 and extending into the sterilization chamber 101, the mounting tube 203 is connected to the sterilization chamber 101 through a flange 201, a first sealing ring 202 is arranged between the flange 201 and the sterilization chamber 101, and a mounting seat 207 is arranged on the flange 201.

[0031] When in use, the mounting cylinder 203 is fixedly connected to the sterilization chamber 101 through the flange 201, and the gap between the flange 201 and the sterilization chamber 101 is sealed by the first sealing ring 202, thereby preventing gas leakage in the sterilization chamber 101. Two groups of positioning ribs 103 are provided on the sterilization chamber 101, and the mounting seat 207 is clamped between the two groups of positioning ribs 103. The positioning ribs 103 can be provided to locate the position of the mounting seat 207 when installing the device, thereby making the installation of the device more convenient.

[0032] like Figures 1 to 3As shown, in this embodiment, a through hole 204 is provided on the installation cylinder 203, a mounting seat 207 is provided on the installation cylinder 203, and a fixing seat 104 is provided on the door 102. A piston 301 is slidably provided in the installation cylinder 203 along its axis, an annular groove 302 aligned with the through hole 204 is provided on the piston 301, a latch 401 is slidably penetrated in the installation seat 207, one end of the latch 401 is clamped in the through hole 204, and the other end can be penetrated into the fixing seat 104.

[0033] In the initial state, one end of the latch 401 can be inserted into the annular groove 302. After the door 102 is closed, the latch 401 can be slid to allow one end to penetrate into the fixing seat 104 to assist in fixing the door 102. After the door 102 is fixed, the sterile articles to be used in the plant tissue culture process can be sterilized and disinfected by applying high temperature and pressure to the sterilization chamber 101, so that the internal air pressure of the sterilization chamber 101 is increased, thereby pushing the piston 301 to slide in the installation cylinder 203 through positive pressure, and the sliding of the installation cylinder 203 drives the position of the annular groove 302 to shift, and the inner side of the through hole 204 is blocked by the piston 301, so that the end of the latch 401 is blocked by the piston 301, effectively preventing the other end of the latch 401 from being separated from the fixing seat 104, thereby preventing the door 102 from being opened due to a malfunction of the electronic locking mechanism of the sterilization chamber 101 or a misoperation by a person. After the pressure is released, the pressure in the sterilization chamber 101 returns to normal and drives the piston 301 to reset, so that one end of the latch 401 can be extended into the annular groove 302 through the through hole 204, so that the latch 401 can be separated from the fixing seat 104, and then the chamber door 102 can be opened in a safe state.

[0034] like Figure 2 , 3 As shown, in this embodiment, both ends of the piston 301 are provided with second sealing rings 303 that abut against the inner wall of the mounting cylinder 203. The second sealing ring 303 seals the gap between the piston 301 and the mounting cylinder 203, effectively preventing gas leakage in the sterilization chamber 101 and causing the air pressure to fail to meet the sterilization standard.

[0035] like Figure 1 , 3 As shown, in this embodiment, a threaded sleeve 205 is provided at the end of the mounting cylinder 203, a shielding cap 206 is screwed on the threaded sleeve 205, an opening rod 304 is provided on the piston 301, the opening rod 304 is inserted in the threaded sleeve 205, and an adjustment hole is provided at the end of the opening rod 304. After it is determined that the pressure relief in the sterilization chamber 101 is completed, if the piston 301 cannot be reset due to the wear of the device, the threaded sleeve 205 can be disassembled, and the piston 301 can be manually controlled to reset by the cooperation of the tool and the adjustment hole to increase the practicality of the device.

[0036] like Figure 1 , 3 As shown, in this embodiment, the latch 401 is rotatably inserted into the mounting seat 207, an opening piece 402 is provided on the latch 401, and a limiting frame 208 is provided on the opposite side of the mounting seat 207 and the fixing seat 104, and the opening piece 402 can be clamped in the limiting frame 208. The latch 401 can be moved by toggling the opening piece 402, and the opening piece 402 can be clamped into the corresponding limiting frame 208 after the latch 401 moves to simply fix the position of the latch 401, thereby preventing the latch 401 from sliding due to external factors, thereby increasing the stability of the device when in use.

[0037] like Figure 2 As shown, in this embodiment, a stopper 105 that can abut against the piston 301 is provided in the mounting cylinder 203, and an elastic member 106 is provided between the piston 301 and the mounting cylinder 203. The setting of the stopper 105 prevents the piston 301 from being reset too far due to excessive pressure relief, so that the annular groove 302 cannot be aligned with the through hole 204, and the setting of the elastic member 106 is used to offset the friction between the piston 301 and the mounting cylinder 203, so that the piston 301 can smoothly return to the initial position after the pressure of the sterilization chamber 101 is relieved.

[0038] Specific usage and beneficial effects of the utility model:

[0039] When the device is in use, the mounting cylinder 203 is fixed on the sterilization chamber 101 and one end of the cylinder is extended into the sterilization chamber 101. After the chamber door 102 is closed, the sliding latch 401 allows one end of the cylinder to pass through the fixing seat 104. When the sterilization chamber 101 is in use, the interior thereof is in a high-pressure state to push the piston 301 to slide in the mounting cylinder 203, and the through hole 204 is closed by the piston 301. At this time, the latch 401 is blocked by the piston 301 and cannot slide, and is thus always stuck in the fixing seat 104 to fix the position of the chamber door 102. When the sterilization chamber 101 is completely depressurized, the pressure in the sterilization chamber 101 returns to normal, thereby resetting the piston 301, and one end of the cylinder can be passed through the annular groove 302 by sliding the latch 401 to detach from the fixing seat 104, thereby effectively preventing the chamber door 102 from being opened and causing an accident due to misoperation by personnel or failure of the electronic lock of the chamber door 102.

[0040] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A regional barrier device, used for being installed on a sterilization chamber (101) to lock a chamber door (102), characterized in that: Included are: A mounting tube (203) is arranged on the sterilization chamber (101) and extends into the sterilization chamber (101); a through hole (204) is opened on the mounting tube (203); and a mounting seat (207) is arranged on the mounting tube (203); A piston (301) is slidably disposed in the mounting tube (203) along the axis of the mounting tube (203), and an annular groove (302) aligned with the through hole (204) is formed on the piston (301); A fixing seat (104) is arranged on the door (102); and The latch (401) is slidably inserted into the mounting seat (207), one end of which is locked in the through hole (204) and the other end of which can be inserted into the fixing seat (104).

2. A regional isolation device according to claim 1, characterized in that: The mounting cylinder (203) is connected to the sterilization chamber (101) via a flange (201), a first sealing ring (202) is provided between the flange (201) and the sterilization chamber (101), and the mounting seat (207) is provided on the flange (201).

3. The regional isolation device according to claim 1, characterized in that: Both ends of the piston (301) are provided with second sealing rings (303) that abut against the inner wall of the mounting cylinder (203).

4. The regional isolation device according to claim 1, characterized in that: A threaded sleeve (205) is provided at the end of the installation cylinder (203), a shielding cap (206) is screwed onto the threaded sleeve (205), an opening rod (304) is provided on the piston (301), the opening rod (304) is inserted into the threaded sleeve (205), and an adjustment hole is provided at the end of the opening rod (304).

5. The regional isolation device according to claim 1, characterized in that: The sterilization chamber (101) is provided with two groups of positioning ridges (103), and the mounting seat (207) is clamped between the two groups of positioning ridges (103).

6. The regional isolation device according to claim 1, characterized in that: The latch (401) is rotatably inserted into the mounting seat (207), an opening piece (402) is provided on the latch (401), and limiting frames (208) are provided on opposite sides of the mounting seat (207) and the fixing seat (104), and the opening piece (402) can be clamped in the limiting frame (208).

7. The regional isolation device according to claim 1, characterized in that: A limit block (105) capable of abutting against the piston (301) is arranged in the installation cylinder (203), and an elastic member (106) is arranged between the piston (301) and the installation cylinder (203).

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