Exhaust reagent cabinet
By setting up partitions inside the reagent cabinet and setting up traction lines and valve plates on the cabinet door, the negative pressure in the storage space when opening the cabinet door is achieved, and the problem of volatile gas leakage in the existing reagent cabinet is solved, which improves safety and use effect.
Patent Information
- Application Number
- CN202421439759.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The air flow inside the existing reagent cabinet is poor, and the volatile gas is easily floating out when the reagent is opened to retrieve the reagent, spreading into the room, endangering the health of the staff and posing safety hazards.
An exhaust reagent cabinet is designed. By setting up vertical and horizontal partitions inside the cabinet body to form storage space and ventilation ducts, and traction lines and valve plates are installed on the cabinet door to achieve negative pressure in the storage space when opening the cabinet door and reduce leakage of volatile gas.
It effectively reduces leakage of volatile gases into the room, avoids the harm caused to personnel by harmful gases, and improves the safety and use effect of the reagent cabinet.
Smart Images
Figure CN222692996U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical reagent cabinets, in particular to an exhaust reagent cabinet. Background Art
[0002] Chemical reagent cabinets are special cabinets for storing chemical reagents. Some chemical reagents are volatile and can produce irritating or toxic gases. However, the existing reagent cabinets have poor internal air flow, and volatile gases are easily released when the cabinet is opened to take out chemical reagents, and spread into the room, seriously endangering the health of workers and posing a major safety hazard. Utility Model Content
[0003] The utility model aims to provide an exhaust reagent cabinet to solve the above technical problems, effectively reduce the leakage of volatile gases into the room, and avoid the harm caused by harmful gases to personnel.
[0004] The embodiment of the utility model is realized through the following technical scheme: an exhaust reagent cabinet comprises a cabinet body and a cabinet door, the bottom end of the cabinet door is hinged with the outer wall of the cabinet body, the interior of the cabinet body is divided into a storage space and a ventilation duct by a vertical partition and a horizontal partition, an inlet fan connected to the storage space is provided at the bottom of the cabinet body, an exhaust fan connected to the ventilation duct is provided at the top of the cabinet body, an air outlet for connecting the storage space and the ventilation duct is provided on the vertical partition, a storage partition is provided above the inlet fan inside the cabinet body, a through hole is provided on the storage partition, a first valve plate is horizontally slidably connected below the storage partition, a first switch hole corresponding to the through hole is provided on the first valve plate, a second valve plate is vertically slidably connected to one side of the vertical partition in the ventilation duct, a second switch hole corresponding to the air outlet is provided on the second valve plate, a first traction line is provided on the cabinet door, one end of the first traction line is fixed to the cabinet door, the other end of the first traction line is fixed to the second valve plate after passing through the air outlet, a second traction line connected to the second valve plate is provided at one end of the first valve plate, and an elastic member connected to the inner wall of the cabinet body is provided at the other end of the first valve plate.
[0005] Furthermore, the storage space is divided into multiple layers by storage partitions, adjacent storage spaces are connected by through holes, and each layer of storage space includes a corresponding cabinet door.
[0006] Furthermore, horizontal clamping strips arranged along the width direction are respectively provided on both sides of the cabinet body along the length direction, and the first valve plate is slidably clamped between the horizontal clamping strips and the storage partition.
[0007] Furthermore, vertical clamping strips are vertically arranged on both sides of the ventilation duct, and the second valve plate is slidably clamped between the vertical clamping strips and the vertical partition.
[0008] Further, the second pulling line is tightly connected to the first valve plate and the second valve plate.
[0009] Furthermore, a plurality of through holes are evenly spaced apart on the storage partition.
[0010] Furthermore, an air inlet is provided on the side wall at the bottom of the cabinet, and a filter layer is provided in the air inlet.
[0011] The utility model has at least the following advantages and beneficial effects: by arranging a first traction line on the cabinet door to pull the second valve plate, and using the second traction line to pull the first valve plate, the first valve plate and the second valve plate are linked when the cabinet door is opened, thereby increasing the negative pressure in the storage space when the cabinet door is opened, effectively reducing the leakage of volatile gases into the room, and avoiding the harm to personnel caused by harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 A schematic diagram of the structure of an exhaust reagent cabinet provided by the utility model;
[0014] Figure 2 A side sectional view of an exhaust reagent cabinet provided by the utility model;
[0015] Figure 3 A partial side sectional view of an exhaust reagent cabinet provided by the utility model with its door closed;
[0016] Figure 4 A partial side sectional view of an exhaust reagent cabinet provided by the utility model with its door open;
[0017] Figure 5 A main sectional view of an exhaust reagent cabinet provided by the utility model;
[0018] Figure 6 A top sectional view of an exhaust reagent cabinet provided by the utility model;
[0019] Icon: 1-cabinet body, 10-guide block, 11-vertical partition, 110-air outlet, 12-horizontal partition, 13-horizontal clip, 14-air inlet, 141-filter layer, 2-cabinet door, 3-storage space, 4-ventilation duct, 41-vertical clip, 5-inlet fan, 6-exhaust fan, 7-storage partition, 70-through hole, 81-first valve plate, 810-first switch hole, 82-second valve plate, 820-second switch hole, 91-first traction line, 92-second traction line, 93-elastic part. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] Example
[0023] like Figure 1-6As shown, in this embodiment, an exhaust reagent cabinet is mainly disclosed, including a cabinet body 1 and a cabinet door 2, the bottom end of the cabinet door 2 is hinged to the outer wall of the cabinet body 1, the interior of the cabinet body 1 is divided into a storage space 3 and a ventilation duct 4 by a vertical partition 11 and a horizontal partition 12, an inlet fan 5 connected to the storage space 3 is provided at the bottom of the cabinet body 1, an exhaust fan 6 connected to the ventilation duct 4 is provided at the top of the cabinet body 1, an air vent 110 for connecting the storage space 3 and the ventilation duct 4 is provided on the vertical partition 11, a storage partition 7 is provided above the inlet fan 5 inside the cabinet body 1, a through hole 70 is provided on the storage partition 7, a first valve plate 81 is horizontally slidably connected below the storage partition 7, and a first switch hole 8 corresponding to the through hole 70 is provided on the first valve plate 81 10, a second valve plate 82 is vertically slidably connected to one side of the vertical partition 11 in the ventilation duct 4, a second switch hole 820 corresponding to the air outlet 110 is opened on the second valve plate 82, a first traction line 91 is provided on the cabinet door 2, one end of the first traction line 91 is fixed to the cabinet door 2, the other end of the first traction line 91 passes through the air outlet 110 and is fixed to the second valve plate 82, one end of the first valve plate 81 is provided with a second traction line 92 connected to the second valve plate 82, and the other end of the first valve plate 81 is provided with an elastic member 93 connected to the inner wall of the cabinet body 1; specifically, the cabinet body 1 is usually placed in a room, and the top of the cabinet body 1 is connected to the external environment through a pipeline, so that the toxic and harmful gases volatilized by the chemical reagents are discharged to the outside to avoid gas accumulation and cause Danger, the bottom of the cabinet 1 is not sealed, and air is continuously introduced through the air intake fan 5; the bottom of the cabinet door 2 is hinged to the outer wall of the cabinet 1, and the upper part of the cabinet door 2 can be locked with the cabinet 1 using existing technology to achieve a sealed connection between the cabinet door 2 and the cabinet 1; the elastic member 93 can be a spring or an elastic retractable rubber strip; it should be noted that when the cabinet door 2 is closed, the elastic member 93 is in a contracted state, and the first valve plate 81 is pulled by the elastic member 93 so that the first switch hole 810 is completely vertically aligned with the through hole 70. At the same time, under the action of gravity, the second valve plate 82 makes the bottom end of the second valve plate 82 abut against the bottom of the ventilation duct 4, and the second switch hole 820 is misaligned with the air hole. At this time, the upper part of the air hole is blocked by the second valve plate 82. , the air hole is in a half-open state; the air passing through the inlet fan 5 enters the storage space 3 through the first switch hole 810 and the through hole 70 in turn, takes away the volatile gas, and then enters the ventilation duct 4 through the air hole and the second switch hole 820 in turn, and is finally discharged to the outside by the exhaust fan, ensuring the smooth circulation of air in the cabinet 1 and effectively discharging the volatile harmful gas; when the cabinet door 2 is opened to take out the chemical reagent, the lock between the cabinet door 2 and the cabinet 1 is first unlocked, and as the cabinet door 2 flips downward, under the pulling force of the first traction line 91, the second valve plate 82 overcomes the gravity and rises, and at the same time drives the second traction line 92 to pull the first valve plate 81, and the first valve plate 81 moves to the side of the ventilation duct 4, and the elastic member 93 is stretched by force;At this time, the first switch hole 810 is misaligned with the through hole 70, the air intake at the bottom of the storage space 3 is reduced or disappears, and the air hole gradually aligns with the second switch hole 820, and the exhaust end of the storage space 3 is enlarged, so that when the cabinet door 2 is opened, the negative pressure in the storage space 3 is increased, and the air on the side of the open cabinet door 2 will be pressed into the storage space 3, effectively reducing the leakage of volatile gas into the room and avoiding the harm of harmful gases to personnel; when the cabinet door 2 is started to close, the cabinet door 2 flips upward, the first traction line 91 is relaxed, and the second valve plate 82 falls to the bottom of the ventilation duct 4 under the action of gravity, and the first valve plate 81 is recovered under the elastic pullback action of the elastic member 93 and returns to the closed state of the cabinet door 2. ;
[0024] Furthermore, in the specific implementation, Figure 1-2 As shown, the above-mentioned storage space 3 provided in the embodiment of the utility model is divided into multiple layers by storage partitions 7, and adjacent storage spaces 3 are connected by through holes 70. Each layer of storage space 3 includes a corresponding cabinet door 2, which is convenient for organizing and storing different chemical reagents and improves space utilization. It should be noted that when the cabinet door 2 of each layer is opened separately, the first valve plate 81 and the second valve plate 82 will be pulled through the corresponding first traction line 91 and the second traction line 92 to achieve linkage.
[0025] Furthermore, in the specific implementation, Figure 3-5 As shown, horizontal clips 13 arranged along the width direction are respectively provided on both sides along the length direction of the above-mentioned cabinet 1 provided in the embodiment of the utility model, and the first valve plate 81 is slidably connected between the horizontal clips 13 and the storage partition 7. It should be noted that the length of the first valve plate 81 along the sliding direction is smaller than the width of the storage partition 7. The first valve plate 81 slides horizontally relative to the storage partition 7 to realize the alignment and offset switching of the first switch hole 810 and the through hole 70, thereby controlling the air intake at the bottom end of the cabinet 1.
[0026] Furthermore, in the specific implementation, Figure 3-6 As shown, vertical clips 41 are vertically arranged on both sides of the interior of the above-mentioned ventilation duct 4 provided in the embodiment of the utility model, and the second valve plate 82 is slidably connected between the vertical clip 41 and the vertical partition 11. It should be noted that the height of the second valve plate 82 is less than the height of the vertical partition 11. The second valve plate 82 slides vertically relative to the vertical partition 11 to achieve the misalignment and alignment switching of the second switch hole 820 and the air hole, thereby controlling the exhaust volume in the storage space 3.
[0027] Furthermore, in the specific implementation, Figure 3 , 4As shown, the second traction line 92 provided in the embodiment of the utility model is tightly connected with the first valve plate 81 and the second valve plate 82, so that the pulling force of the second valve plate 82 can be quickly transmitted to the first valve plate 81. Specifically, an opening for passing the second traction line 92 is opened under the storage space 3 at the lower part of the vertical partition 11. In addition, the line length of the first traction line 91 can be left with a margin. A guide block 10 for guiding the first traction line 91 can be provided on the inner wall of the cabinet 1 and the storage partition 7, and the first traction line 91 can be provided with a knot for engaging with the guide block 10 at one end close to the cabinet door 2, so that when the first traction line 91 is in a closed state, the end of the first traction line 91 connected to the second valve plate 82 is in a taut state, and in this way, the excess line length can be concentrated on the cabinet door 2, avoiding the first traction line 91 that is gradually tightened and straightened when opening, interfering with and scraping the chemical reagent container, causing the container to tip over and causing the chemical reagent to leak.
[0028] Furthermore, in the specific implementation, Figure 6 As shown, a plurality of through holes 70 are evenly spaced apart on the storage partition 7 provided in the embodiment of the utility model to ensure smooth air intake.
[0029] Furthermore, in the specific implementation, Figure 1-5 As shown, an air inlet 14 is opened on the bottom side wall of the cabinet 1 provided in the embodiment of the utility model, and a filter layer 141 is arranged in the air inlet 14, which can effectively filter impurities in the air and keep the environment in the storage space 3 clean and hygienic.
[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An exhaust reagent cabinet, characterized in that: The cabinet (1) comprises a cabinet body (1) and a cabinet door (2), wherein the bottom end of the cabinet door (2) is hingedly connected to the outer wall of the cabinet body (1), the interior of the cabinet body (1) is divided into a storage space (3) and a ventilation duct (4) by a vertical partition (11) and a horizontal partition (12), the bottom of the cabinet body (1) is provided with an inlet fan (5) connected to the storage space (3), the top of the cabinet body (1) is provided with an exhaust fan (6) connected to the ventilation duct (4), the vertical partition (11) is provided with an air outlet (110) for connecting the storage space (3) and the ventilation duct (4), the interior of the cabinet body (1) is provided with a storage partition (7) above the inlet fan (5), the storage partition (7) is provided with a through hole (70), the bottom of the storage partition (7) is horizontally slidably connected to a first valve plate (81), the first A first switch hole (810) corresponding to the through hole (70) is provided on the valve plate (81); a second valve plate (82) is vertically slidably connected to one side of the vertical partition (11) in the ventilation duct (4); a second switch hole (820) corresponding to the air outlet (110) is provided on the second valve plate (82); a first traction line (91) is provided on the cabinet door (2); one end of the first traction line (91) is fixed to the cabinet door (2); the other end of the first traction line (91) passes through the air outlet (110) and is fixed to the second valve plate (82); one end of the first valve plate (81) is provided with a second traction line (92) connected to the second valve plate (82); the other end of the first valve plate (81) is provided with an elastic member (93) connected to the inner wall of the cabinet body (1).
2. An exhaust reagent cabinet as claimed in claim 1, characterized in that: The storage space (3) is divided into multiple layers by the storage partitions (7), adjacent storage spaces (3) are connected via the through holes (70), and each layer of the storage space (3) includes a corresponding cabinet door (2).
3. An exhaust reagent cabinet as claimed in claim 1, characterized in that: Horizontal clamping strips (13) arranged along the width direction are respectively provided on both sides along the length direction of the cabinet (1), and the first valve plate (81) is slidably clamped between the horizontal clamping strips (13) and the storage partition (7).
4. An exhaust reagent cabinet as claimed in claim 1, characterized in that: Vertical clamping strips (41) are vertically arranged on both sides of the ventilation duct (4), and the second valve plate (82) is slidably clamped between the vertical clamping strips (41) and the vertical partition plate (11).
5. The exhaust reagent cabinet according to claim 1, characterized in that: The second pulling line (92) is tightly connected to the first valve plate (81) and the second valve plate (82).
6. An exhaust reagent cabinet as claimed in claim 1, characterized in that: The storage partition (7) is provided with a plurality of through holes (70) at even intervals.
7. An exhaust reagent cabinet as claimed in claim 1, characterized in that: An air inlet (14) is provided on the bottom side wall of the cabinet (1), and a filter layer (141) is provided in the air inlet (14).