Ultra-clean bench with height-adjustable window glass door
By designing an adjustable glass door in the clean bench, and utilizing a combination of external guide grooves, internal guide grooves, and elastic components, the problem of unstable glass door positioning was solved, achieving the effect of adapting to different operators' postures and improving cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-03
Smart Images

Figure CN224074317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clean bench technology, specifically a clean bench with an adjustable glass door height. Background Technology
[0002] For tasks requiring high cleanliness, equipment such as laminar flow hoods is necessary. Laminar flow hoods operate under positive pressure to prevent external contaminants from entering, ensuring a clean working environment. Before starting work, the operator must lift the glass door at the workbench window to open the window. However, existing laminar flow hoods often lack stable multi-height positioning of the glass door, making it difficult to adapt to different operator postures and habits, leading to increased operator fatigue. Utility Model Content
[0003] The purpose of this utility model is to solve the problem that the glass door of the existing clean bench is difficult to achieve stable positioning at multiple heights, making it difficult to adapt to the different operating postures and habits of operators, thus leading to strong work fatigue. Therefore, this utility model provides a clean bench with an adjustable glass door height.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a clean bench with an adjustable window glass door height, comprising:
[0005] The workbench body has a working chamber and an equipment chamber inside, and a window is provided on the side of the working chamber;
[0006] A window frame is provided on both sides of the window, and a vertically extending outer guide groove is provided on it, which connects to the inner guide groove on the inner side of the window frame.
[0007] The glass door is slidably mounted on the outer guide groove and the inner guide groove on both sides. Its top extends into the receiving groove at the top of the workbench body, and its bottom connects to the bracket. The bracket abuts against the inner side of the outer guide groove and extends into the inner guide groove.
[0008] The elastic component has one end connected to the connecting seat in the inner guide groove and the other end connected to the bracket.
[0009] As a further description of the above technical solution:
[0010] The bracket has an I-shaped structure, with its upper insertion port at the top connected to the bottom edge of the glass door and tightly positioned by a sealing gasket, and a flexible connecting strip inserted into its lower insertion port at the bottom.
[0011] As a further description of the above technical solution:
[0012] An arc-shaped push plate is provided at the outer end face of the bracket.
[0013] As a further description of the above technical solution:
[0014] The elastic component is a coil spring, the upper end of which is wound around the connecting seat. The connecting seat is rotatably connected to the U-shaped frame, and the U-shaped frame is positioned in the inner guide groove.
[0015] As a further description of the above technical solution:
[0016] The workbench body is provided with a first mounting port on the top of the equipment chamber, and a primary filter is installed on the first mounting port.
[0017] As a further description of the above technical solution:
[0018] A partition is provided in the middle of the workbench body, which divides the inner cavity of the workbench body into the working chamber and the equipment chamber. A fan is provided in the equipment chamber. Several second mounting ports are provided on the partition, and high-efficiency filters are arranged in the second mounting ports.
[0019] As a further description of the above technical solution:
[0020] The bottom surface of the working chamber is partially provided with an air outlet mesh, which is connected to the external environment through an exhaust port.
[0021] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:
[0022] Beneficial effects:
[0023] This invention relates to a clean bench that allows for flexible control of the window opening degree and automatic positioning to meet varying internal pressurization requirements and accommodate different operator postures and habits. In use, the curved push plate is grasped and pushed upwards to raise the glass door to the desired height. Releasing the plate allows the glass door's own weight, the tension of the elastic components, and the frictional resistance between the support and the inner side of the outer guide groove to achieve automatic force balance, ensuring stable positioning of the glass door. Positive pressure is introduced into the clean bench to prevent external impurities from entering its interior. A dual-filtration structure further enhances the cleanliness of the working environment. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of a clean bench with an adjustable glass door height.
[0026] Figure 2 This is a structural diagram of the connection nodes of the window frame, glass door, bracket, and elastic components in a clean bench with adjustable window and glass door height.
[0027] Legend:
[0028] 1. Workbench body; 2. Working chamber; 3. Equipment chamber; 4. Window frame; 5. Outer guide groove; 6. Inner guide groove; 7. Glass door; 8. Receiving groove; 9. Bracket; 10. Connecting seat; 11. Elastic component; 12. Upper insertion port; 13. Lower insertion port; 14. Flexible docking strip; 15. Arc-shaped push plate; 16. U-shaped frame; 17. First mounting port; 18. Primary filter; 19. Partition plate; 20. Fan; 21. Second mounting port; 22. High-efficiency filter; 23. Air outlet mesh; 24. Exhaust vent. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Please see Figure 1-2 This utility model provides a technical solution: a clean bench with an adjustable window glass door height, comprising:
[0032] The workbench body 1 has a working chamber 2 and an equipment chamber 3 inside, and a window is provided on the side of the working chamber 2.
[0033] A window frame 4 is provided on both sides of the window, and a vertically extending outer guide groove 5 is provided on it. The outer guide groove 5 connects to the inner guide groove 6 on the inner side of the window frame 4.
[0034] The glass door 7 is slidably mounted on the outer guide groove 5 and the inner guide groove 6 on both sides. Its top extends into the receiving groove 8 at the top of the workbench body 1, and its bottom connects to the bracket 9. The bracket 9 abuts against the inner side of the outer guide groove 5 and extends into the inner guide groove 6.
[0035] The elastic component 11 has one end connected to the connecting seat 10 in the inner guide groove 6 and the other end connected to the bracket 9.
[0036] The bracket 9 has an I-shaped structure. Its upper insertion port 12 is inserted into the bottom edge of the glass door 7 and is tightly positioned by a sealing gasket. A flexible connecting strip 14 is inserted into its lower insertion port 13. The flexible connecting strip 14 can buffer the impact force when the glass door 7 is closed and the bracket 9 is closed on the bottom surface of the window, so as to avoid damage to the glass door 7.
[0037] An arc-shaped push plate 15 is provided on the outer end face of the bracket 9. This makes it easier for the operator to grasp and push the bracket 9 up and down using the arc-shaped push plate 15, thereby improving the stability and convenience of the glass door 7 lifting operation.
[0038] The elastic component 11 is a coil spring, the upper end of which is wound around the connecting seat 10. The connecting seat 10 is rotatably connected to the U-shaped frame 16, and the U-shaped frame 16 is positioned in the inner guide groove 6.
[0039] The workbench body 1 has a first mounting port 17 at the top of the equipment chamber 3, and a primary filter 18 is installed on the first mounting port 17. A partition 19 is provided in the middle of the workbench body 1, which divides the inner cavity of the workbench body 1 into the working chamber 2 and the equipment chamber 3. A fan 20 is installed in the equipment chamber 3. Several second mounting ports 21 are provided on the partition 19, and high-efficiency filters 22 are arranged in the second mounting ports 21. The cleanliness of the air entering the working chamber 2 can be improved by the arrangement of the dual filtration structure.
[0040] The bottom surface of the working chamber 2 is partially provided with air outlet mesh 23, which connects to the external environment through exhaust vent 24. When the exhaust gap formed between the bottom of the glass door 7 and the window is small, the air outlet mesh 23 can help achieve stable exhaust. The airflow direction in the clean bench is: pre-filter 18 - equipment chamber 3, fan 20 - high-efficiency filter 22 - working chamber 2 - gap between the bottom of the window and the glass door 7 and the air outlet mesh 23 and exhaust vent 24 at the bottom of the working chamber 2 - external environment.
[0041] The working principle of this embodiment of an adjustable-height clean bench includes: This clean bench allows for flexible control of the window opening degree and automatic positioning to meet different internal pressure requirements and adapt to different operator postures and habits. In use, grasp the curved push plate 15 and push it upwards to raise the glass door 7 to the desired height. Then release the curved push plate 15, allowing the glass door 7 to achieve automatic force balance based on its own weight, the pulling force of the elastic component 11, and the frictional resistance between the bracket 9 and the inner side of the outer guide groove 5, thus stably positioning the glass door 7. Positive pressure is introduced into the clean bench to prevent external impurities from entering its interior. A dual-filtration structure filters the incoming air, improving the cleanliness of the working environment.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A window glass door height-adjustable super-clean workbench, characterized in that, The utility model provides a workbench body, which is internally provided with a work chamber and an equipment chamber, and a window is arranged on the side of the work chamber; A window frame is arranged on both sides of the window, and an outer guide groove extending vertically is arranged on the window frame, and the outer guide groove is connected with an inner guide groove on the inner side of the window frame; A glass door is slidingly arranged on both sides of the outer guide groove and the inner guide groove, and the top of the glass door extends into a receiving groove on the top of the workbench body, and the bottom of the glass door is connected with a support, which abuts against the inner side of the outer guide groove and extends into the inner guide groove; An elastic assembly is connected with a connecting seat in the inner guide groove at one end and connected with the support at the other end. The support is in the shape of an I-beam, the upper socket on the top of the support is connected with the bottom edge of the glass door and is tightly positioned by a sealing gasket, and the lower socket on the bottom of the support is internally provided with a flexible connecting strip.
2. A window glass door height adjustable super-clean bench according to claim 1, characterized in that, An arc-shaped push plate is arranged on the outer end surface of the support.
3. The window glass door height adjustable super-clean bench according to claim 1, characterized in that, The elastic assembly is a coil spring, the upper end of the coil spring is wound on the connecting seat, the connecting seat is rotationally connected in a U-shaped frame, and the U-shaped frame is positioned in the inner guide groove.
4. The window glass door height adjustable super-clean bench according to claim 1, characterized in that, A first mounting port is arranged on the top of the equipment chamber of the workbench body, and a primary filter is arranged on the first mounting port.
5. The window glass door height adjustable super-clean bench according to claim 1, characterized in that, A partition is arranged in the middle of the workbench body, the partition divides the inner cavity of the workbench body into the work chamber and the equipment chamber, a fan is arranged in the equipment chamber, and a plurality of second mounting ports are arranged on the partition, and high-efficiency filters are arranged in the second mounting ports.
6. A window glass door height adjustable super-clean bench according to claim 1, characterized in that, A plurality of air outlet mesh holes are arranged on the bottom surface of the work chamber, and the air outlet mesh holes are connected with the outside environment through air outlet ports.
7. A window glass door height adjustable super-clean bench according to claim 1, characterized in that,