A biological safety cabinet
By introducing reset components and limit blocks into the biosafety cabinet, the form is automatically reset to a safe position after opening, solving the problem of manually lowering the front window in the prior art, and improving the safety of the biosafety cabinet.
Patent Information
- Application Number
- CN202421345505.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-13
AI Technical Summary
After the front window is opened to the maximum, the existing biosafety cabinet needs to be manually lowered. If the user forgets to lower the front window, there is a safety hazard.
A biosafety cabinet is designed, including a cabinet body, a form, a reset component and a limit block. The form can slide on the cabinet body. The reset component enables the form to automatically reset to a safe position after opening. The limit block limits the form to avoid manually reducing the demand for the form.
Through the automatic reset and limit functions, the biosafety cabinet can automatically restore the form to a safe operating position when putting in or transferring materials and instruments, improving safety during use.
Smart Images
Figure CN222739196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biological experimental tools, in particular to a biological safety cabinet. Background Art
[0002] The biological safety cabinet is a box-type air purification negative pressure safety device that can prevent the aerosol dispersion of certain dangerous or unknown biological particles during experimental operations. It is widely used in scientific research, teaching, clinical testing and production in the fields of microbiology, biomedicine, genetic engineering, and biological products. It is the most basic safety protection equipment in the first-level protection barrier of laboratory biosafety.
[0003] Nowadays, when placing or transferring materials and instruments into a safety cabinet, the sliding front window may be opened to the maximum, which will put it in an unsafe state. The front window needs to be manually lowered to put it in a safe operating position, which increases the operating steps. If the user forgets to lower the front window, there is a certain safety hazard. Utility Model Content
[0004] The purpose of the utility model is to overcome the above technical deficiencies and to provide a biological safety cabinet to solve the technical problem in the prior art that after the front window is opened to the maximum, it will be in an unsafe state and needs to be manually lowered. If the user forgets to lower the front window for various reasons, there will be certain safety hazards.
[0005] In order to achieve the above-mentioned technical purpose, the technical solution of the utility model includes a biological safety cabinet, including: a cabinet body, a window body, a reset assembly and a limit block; the cabinet body has an opening on one side, and an ultraviolet lamp assembly is arranged inside; the window body can slide in the opening on one side of the cabinet body along the vertical direction to open and close the opening; the reset assembly is installed on the cabinet body along the vertical direction and is connected to the window body so that the window can automatically reset after opening upward, so that the window reaches a designated safe position; the limit block is detachably installed at the opening on one side of the cabinet body and is located directly below the window body to limit the window.
[0006] Preferably, it further comprises a limiting slide rail, wherein the limiting slide rail is installed at an opening on one side of the cabinet along a vertical direction, the window slides on the limiting slide rail, and the limiting block is detachably installed on the limiting slide rail.
[0007] Preferably, the reset assembly includes a reset spring and a ball, a mounting groove is opened inside the cabinet, the reset spring is installed in the mounting groove along the vertical direction, the top of the reset spring is fixedly connected to the cabinet, the bottom of the reset spring is fixedly connected to the top of the window, the ball is rotatably installed in the mounting groove of the cabinet, and the ball is in contact with the side wall of the window.
[0008] Preferably, a connection port for inserting the return spring is provided at the top of the window.
[0009] Preferably, the mounting groove is opened on the cabinet along the vertical direction.
[0010] Preferably, a limiting hole for inserting the limiting block is provided on the limiting slide rail.
[0011] Preferably, the limit block includes a stop block and an insert block, the insert block is fixed to one side of the stop block, the insert block can be inserted into the limit hole on the slide rail, and the top of the stop block can abut against the bottom of the window.
[0012] Preferably, the end of the insert block is configured to be a square, and the end surface of the limiting hole is configured to be a square.
[0013] Preferably, two groups of the limiting slide rails are provided, and the two groups of the limiting slide rails are symmetrically installed at the opening on one side of the cabinet.
[0014] Preferably, it further comprises a handle, wherein the handle is installed on a side of the window located outside the cabinet.
[0015] Compared with the prior art, the beneficial effects of the utility model include: the biological safety cabinet, through the arrangement of the cabinet body, the window, the reset assembly and the limit block, the window can slide on the cabinet body, the reset assembly can reset the opened window, the cabinet body can automatically restore the window to a safe operating position when placing or transferring materials and instruments, the limit block can limit the window, the biological safety cabinet does not require the user to manually lower the opened window, thereby improving the safety of the biological safety cabinet during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the biological safety cabinet provided by the utility model (the window is in a safe working state);
[0017] Figure 2 It is a side sectional view of a biological safety cabinet provided by the utility model, in which a window, a reset assembly and a limit slide rail are installed on a cabinet body;
[0018] Figure 3 This utility model Figure 2 A local enlarged view of point A;
[0019] Figure 4 It is a schematic diagram of the biological safety cabinet provided by the utility model after the window is opened (the window is in a non-safe working state);
[0020] Figure 5 It is a schematic diagram of the biological safety cabinet window closed provided by the utility model (the window is in a completely closed state, not in working state);
[0021] Figure 6 It is a schematic diagram of the biological safety cabinet provided by the utility model without the window installed;
[0022] Figure 7 It is a schematic diagram of a limit slide rail in a biological safety cabinet provided by the utility model;
[0023] Figure 8 It is a front view of a limit block in a biological safety cabinet provided by the utility model;
[0024] Fig. 9 It is a side view of a limit block in a biological safety cabinet provided by the utility model;
[0025] Fig.10 It is a top view of a window in a biological safety cabinet provided by the utility model. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0027] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, the utility model provides a biological safety cabinet, including: a cabinet 10, a window 20, a reset assembly 30 and a limit block 40; the cabinet 10 has an opening on one side, and an ultraviolet lamp assembly is arranged inside; the window 20 can slide on the opening on one side of the cabinet 10 along the vertical direction to open and close the opening; the reset assembly 30 is installed on the cabinet 10 along the vertical direction and is connected to the window 20, so that the window 20 automatically resets after opening upward, so that the window 20 reaches a designated safe position; the limit block 40 is detachably installed at the opening on one side of the cabinet 10, and is located directly below the window 20 to limit the window 20.
[0028] Through the arrangement of the cabinet 10, the window 20, the reset assembly 30 and the limit block 40, the window 20 can slide on the cabinet 10, the reset assembly 30 can reset the opened window 20 to place the window 20 in a safe position, the limit block 40 can limit the window 20, and the biosafety cabinet does not require the user to manually lower the opened window 20, thereby improving the safety of the biosafety cabinet during use.
[0029] The setting of the reset component 30 can make the window 20 automatically rebound after being opened. When the cabinet 10 is placed in or transferred with materials and instruments, the window 20 can be automatically restored to a safe operating position, which is convenient for the use of the cabinet 10.
[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the biosafety cabinet further includes a limiting slide rail 50, which is installed at the opening on one side of the cabinet body 10 in the vertical direction, the window body 20 slides on the limiting slide rail 50, and the limiting block 40 is detachably installed on the limiting slide rail 50. The limiting slide rail 50 is provided with two groups, and the two groups of limiting slide rails 50 are symmetrically installed at the opening on one side of the cabinet body 10.
[0031] The setting of the limiting slide rail 50 has a limiting effect on the moving trajectory of the window 20, making it convenient for the window 20 to move.
[0032] The limit block 40 is installed on the limit slide rail 50 when the cabinet 10 is in use, so that the limit block 40 plays a role of limiting the window 20. At this time, the limit block 40 is in a horizontal state.
[0033] like Figure 3 As shown, in this embodiment, specifically, the reset assembly 30 includes a reset spring 31 and a ball 32. A mounting groove is provided inside the cabinet 10. The reset spring 31 is installed in the mounting groove along the vertical direction. The top of the reset spring 31 is fixedly connected to the cabinet 10, and the bottom of the reset spring 31 is fixedly connected to the top of the window 20. The ball 32 is rotatably installed in the mounting groove of the cabinet 10, and the ball 32 contacts the side wall of the window 20. Fig.10 As shown, a connection port for inserting the reset spring 31 is provided at the top of the window 20. The mounting groove is vertically provided on the cabinet 10. In this embodiment, the number of connection ports provided on the window 20 is 5, and the end surface of the connection port is provided as a circular structure.
[0034] The return spring 31 can return the window 20 to its original position after being stressed.
[0035] like Figure 2 , Figure 3 As shown, in this embodiment, two groups of balls 32 are provided, the two groups of balls 32 are respectively located in the mounting grooves, and the two groups of balls 32 are respectively in contact with the side walls of the window 20 .
[0036] The provision of the ball bearings 32 facilitates the movement of the window 20 in the installation groove of the cabinet 10 .
[0037] like Figure 7 As shown, in this embodiment, a limiting hole for inserting the limiting block 40 is formed on the limiting slide rail 50 .
[0038] like Figure 8 , Fig. 9 As shown, in this embodiment, further, the limit block 40 includes a stop block 41 and an insert block 42, the insert block 42 is fixed to one side of the stop block 41, the insert block 42 can be inserted into the limit hole on the slide rail 50, and the top of the stop block 41 can abut against the bottom of the window 20.
[0039] like Figure 8 , Fig. 9 As shown, in this embodiment, further, the end of the insert block 42 is set to be square, and the end surface of the limiting hole is set to be square. The square limiting hole is convenient for limiting the insert block 42. The insert block 42 cannot be rotated after being inserted into the square limiting hole. If the direction of the insert block 42 needs to be changed, the insert block 42 needs to be pulled out of the limiting hole.
[0040] When the cabinet 10 is not in use, the limit block 40 can be installed on the limit slide rail 50 as needed, and the stop block 41 and the insert block 42 are rotated, and the insert block 42 is inserted into the limit slide rail 50. At this time, the limit block 40 is in a vertical downward state, and the stop block 41 of the limit block 40 is not in contact with the window 20.
[0041] The biological safety cabinet further includes a handle 60, which is installed on a side of the window 20 located outside the cabinet 10. The arrangement of the handle 60 facilitates the opening of the window 20.
[0042] When materials and instruments are placed in or transferred from the cabinet 10 , the window 20 can be automatically restored to a safe operating position, making the use of the cabinet 10 convenient.
[0043] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A biological safety cabinet, characterized in that: include: The cabinet has an opening on one side and is provided with an ultraviolet lamp assembly inside; A window body, which can slide vertically on the opening of one side of the cabinet body to open and close the opening; A reset assembly is installed on the cabinet in a vertical direction and is connected to the window, so that the window is automatically reset after the opening is opened upward, so that the window reaches a designated safe position; as well as A limit block is detachably mounted at an opening on one side of the cabinet and is located directly below the window to limit the position of the window.
2. A biological safety cabinet according to claim 1, characterized in that: It also includes a limiting slide rail, which is installed at an opening on one side of the cabinet along a vertical direction, the window slides on the limiting slide rail, and the limiting block is detachably installed on the limiting slide rail.
3. A biological safety cabinet according to claim 1, characterized in that: The reset assembly includes a reset spring and a ball. A mounting groove is provided inside the cabinet. The reset spring is installed in the mounting groove along the vertical direction. The top of the reset spring is fixedly connected to the cabinet, and the bottom of the reset spring is fixedly connected to the top of the window. The ball is rotatably installed in the mounting groove of the cabinet, and the ball is in contact with the side wall of the window.
4. A biological safety cabinet according to claim 3, characterized in that: The top of the window is provided with a connection port for inserting the return spring.
5. A biological safety cabinet according to claim 3, characterized in that: The installation groove is vertically arranged on the cabinet.
6. A biological safety cabinet according to claim 2, characterized in that: The limiting slide rail is provided with a limiting hole for the limiting block to be inserted into.
7. A biological safety cabinet according to claim 6, characterized in that: The limit block includes a stop block and an insert block, wherein the insert block is fixed to one side of the stop block, the insert block can be inserted into the limit hole on the slide rail, and the top of the stop block can abut against the bottom of the window.
8. A biological safety cabinet according to claim 7, characterized in that: The end of the insert block is configured to be a square, and the end surface of the limiting hole is configured to be a square.
9. A biological safety cabinet according to claim 2, characterized in that: The limiting slide rails are provided with two groups, and the two groups of limiting slide rails are symmetrically installed at the opening on one side of the cabinet.
10. A biological safety cabinet according to claim 1, characterized in that: A handle is also included, and the handle is installed on one side of the window located outside the cabinet.