High-strength clean laminar flow hood
By adopting a combined structure of the outer reinforcement frame and the inner reinforcement frame in the clean laminar flow hood, the problem of insufficient strength in the lower part of the conventional clean laminar flow hood is solved, and higher structural stability and convenience of filter rack replacement are achieved.
Patent Information
- Application Number
- CN202420970916.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The lower strength of the conventional clean laminar flow hood is low, which leads to high removal resistance of the filter grid and makes it difficult to replace the filter grid.
The combined structure of the outer reinforcement frame and the inner reinforcement frame is adopted, and the lower inner end of the clean laminar flow cover is supported by the outer reinforcement frame, and the inner reinforcement frame is used to support the inner part of the outer reinforcement frame to increase the lower strength and structural stability. At the same time, the closed state stability of the filter frame is improved by bolt and threaded connection.
It improves the strength and structural stability of the lower part of the clean laminar flow cover, facilitates the opening and closing of the filter grid frame, and enhances the stability of the closed state of the filter grid frame.
Smart Images
Figure CN222623968U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of clean laminar flow hoods, in particular to a high-strength clean laminar flow hood. Background Art
[0002] The clean laminar flow hood is an air purification unit that can provide a local clean environment. It can be flexibly installed above the process point that requires high cleanliness. The clean laminar flow hood can be used alone or combined into a strip-shaped clean area.
[0003] Since the lower part of the clean laminar flow hood lacks effective support, its lower part is insufficiently strong. When the lower part of the clean laminar flow hood is deformed, the filter rack has great resistance to disassembly, and it is difficult to remove and replace the filter, resulting in the problem of relatively low strength of the lower part of the conventional clean laminar flow hood.
[0004] To this end, we proposed a high-strength clean laminar flow hood to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the problem that the lower part of the conventional clean laminar flow hood has relatively low strength, and proposes a high-strength clean laminar flow hood.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A high-strength clean laminar flow hood comprises a clean laminar flow hood body, the inside of the clean laminar flow hood body is fixedly connected with an external reinforcement frame, the inner end of the external reinforcement frame is fixedly connected with an internal reinforcement frame, a filter mesh frame is movably embedded in the lower part of the clean laminar flow hood body, a bolt is rotatably installed on the filter mesh frame, and the upper part of the bolt is threadedly installed in the middle part of the internal reinforcement frame. The external reinforcement frame is supported on the lower inner end of the clean laminar flow hood body, and the internal reinforcement frame is supported inside the external reinforcement frame to increase the strength of the lower part of the clean laminar flow hood body, thereby increasing the stability of the lower structure of the clean laminar flow hood body, facilitating the smooth opening and closing of the filter mesh frame, unscrewing the bolts from the internal reinforcement frame, and then removing the filter mesh frame, and reassembling the filter mesh frame, and increasing the stability of the closed state of the filter mesh frame through the bolt thread connection method.
[0008] Preferably, the clean laminar flow hood body further comprises a hood body and a reinforcement frame, wherein the reinforcement frame is fixedly connected to the lower inner end of the hood body. The reinforcement frame is fixed inside the hood body to increase the stability of the lower structure of the hood body.
[0009] Preferably, the outer reinforcement frame includes an annular frame and a reinforcement rod, and the reinforcement rod is fixedly connected to the outer end of the annular frame. The reinforcement rod and the annular frame are supported inside the reinforcement frame to further increase the strength of the lower part of the cover body.
[0010] Preferably, the inner reinforcement frame includes a connecting rod and a threaded ring, a guide groove is provided at the lower part of the threaded ring, and the connecting rod is evenly fixedly connected to the outer end of the threaded ring. The threaded ring and the annular frame are tightened by the connecting rod to make the structure of the outer reinforcement frame more stable, and the guide groove is used to guide the bolts into the clean laminar flow hood body, so as to facilitate the connection between the bolts and the inner reinforcement frame.
[0011] Preferably, the filter mesh frame comprises an outer frame, a mesh frame and a bearing, the mesh frame is fixedly connected to the inner end of the outer frame, and the bearing is fixedly connected to the inner end of the mesh frame.
[0012] Preferably, the bolt comprises a threaded column, a first retaining ring, a second retaining ring and a knob, wherein the knob is fixedly connected to the lower ends of the threaded column and the second retaining ring. Twisting the knob drives the first retaining ring to rotate, screwing the threaded column out of the threaded ring, or screwing the threaded column in again, so as to facilitate the operation of opening the bolt or closing the bolt again.
[0013] Preferably, the bolt further comprises a guide block, which is fixedly connected to the upper end of the threaded column. When the threaded column is screwed into the threaded ring, the guide block is used to guide the threaded column into the threaded ring, thereby improving the connection between the bolt and the inner reinforcement frame.
[0014] In summary, the technical effects and advantages of the utility model are as follows:
[0015] 1. Use the outer reinforcement frame to support the lower inner end of the clean laminar flow hood body, and then use the inner reinforcement frame to support the inside of the outer reinforcement frame to increase the strength of the lower part of the clean laminar flow hood body, thereby increasing the stability of the lower structure of the clean laminar flow hood body, making it convenient to keep the filter frame open and close smoothly, unscrew the bolts from the inner reinforcement frame, and then remove the filter frame. Conversely, reassemble the filter frame and increase the stability of the closed state of the filter frame through the bolt thread connection method.
[0016] 2. Use a reinforcement frame to fix inside the cover to increase the stability of the lower structure of the cover, and use reinforcement rods and annular frames to support the inside of the reinforcement frame to further increase the strength of the lower part of the cover.
[0017] 3. Use the connecting rod to tighten the threaded ring and the annular frame to make the structure of the outer reinforcement frame more stable, and use the guide groove to guide the bolts into the clean laminar flow hood body to facilitate the connection between the bolts and the inner reinforcement frame.
[0018] 4. Turn the knob to drive the first retaining ring to rotate, screw the threaded column out of the threaded ring, or screw the threaded column in again, so as to facilitate opening the bolt or closing the bolt again.
[0019] 5. When screwing the threaded column into the threaded ring, use the guide block to guide the threaded column into the threaded ring, thereby improving the connection between the bolt and the inner reinforcement frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the clean laminar flow hood of the utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the external reinforcement frame of the utility model;
[0023] Figure 4 This is a schematic diagram of the internal reinforcement frame structure of the utility model;
[0024] Figure 5 This is a schematic diagram of the filter frame structure of the utility model;
[0025] Figure 6 This is a schematic diagram of the bolt structure of the utility model.
[0026] In the figure: 2, clean laminar flow hood body; 3, outer reinforcement frame; 4, inner reinforcement frame; 5, filter mesh frame; 6, bolts; 21, hood body; 22, reinforcement frame; 31, annular frame; 32, reinforcement rod; 41, connecting rod; 42, threaded ring; 43, guide groove; 51, outer frame; 52, mesh frame; 53, bearing; 61, guide block; 62, threaded column; 63, first retaining ring; 64, second retaining ring; 65, knob. DETAILED DESCRIPTION
[0027] The following will provide a clear and complete description of the technical solutions in the utility model embodiments in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.
[0028] Reference Figure 1 A high-strength clean laminar flow hood comprises a clean laminar flow hood body 2, an outer reinforcing frame 3 is fixedly connected to the inside of the clean laminar flow hood body 2, an inner end of the outer reinforcing frame 3 is fixedly connected to an inner reinforcing frame 4, a filter mesh frame 5 is movably embedded in the lower part of the clean laminar flow hood body 2, a bolt 6 is rotatably installed on the filter mesh frame 5, and the upper part of the bolt 6 is threadedly installed in the middle part of the inner reinforcing frame 4.
[0029] Reference Figure 1 and 2 The clean laminar flow hood body 2 also includes a hood body 21 and a reinforcement frame 22, and the reinforcement frame 22 is fixedly connected to the lower inner end of the hood body 21. The reinforcement frame 22 is fixed inside the hood body 21 to increase the stability of the lower structure of the hood body 21.
[0030] Reference Figure 1 , 23, the outer reinforcement frame 3 includes an annular frame 31 and a reinforcement rod 32, the annular frame 31 is fixedly connected to the inner end of the reinforcement frame 22, the end of the reinforcement rod 32 facing away from the annular frame 31 is fixedly connected to the reinforcement frame 22, and the reinforcement rod 32 is fixedly connected to the outer end of the annular frame 31. The reinforcement rod 32 and the annular frame 31 are supported inside the reinforcement frame 22 to further increase the strength of the lower part of the cover body 21.
[0031] Reference Figure 1 , 3 4, the inner reinforcing frame 4 includes a connecting rod 41 and a threaded ring 42, a guide groove 43 is provided at the lower part of the threaded ring 42, the outer end of the connecting rod 41 is fixedly connected to the annular frame 31, and the connecting rod 41 is evenly fixedly connected to the outer end of the threaded ring 42. The threaded ring 42 and the annular frame 31 are tightened by the connecting rod 41 to make the structure of the outer reinforcing frame 3 more stable, and the guide groove 43 is used to guide the bolt 6 into the clean laminar flow hood body 2.
[0032] Reference Figure 1 , 2 5, the filter mesh frame 5 includes an outer frame 51, a mesh frame 52 and a bearing 53, the outer frame 51 is movably clamped at the lower part of the cover body 21, the outer frame 51 is movably contacted with the reinforcement frame 22, the mesh frame 52 is fixedly connected to the inner end of the outer frame 51, and the bearing 53 is fixedly connected to the inner end of the mesh frame 52. The mesh frame 52 and the inner reinforcement frame 4 are used to place the filter, and the bearing 53 is used to rotate the connecting bolt 6.
[0033] Reference Figure 1 , 4 , 5 and 6, the bolt 6 comprises a threaded column 62, a first retaining ring 63, a second retaining ring 64 and a knob 65, the threaded column 62 is threadedly installed in the threaded ring 42, the lower part of the threaded column 62 is rotatably connected to the bearing 53, the first retaining ring 63 and the second retaining ring 64 are movably clamped outside the bearing 53, and the knob 65 is fixedly connected to the lower ends of the threaded column 62 and the second retaining ring 64. Twisting the knob 65 drives the first retaining ring 63 to rotate, screwing the threaded column 62 out of the threaded ring 42, or screwing the threaded column 62 in again.
[0034] Reference Figure 1 , 4 6, the bolt 6 also includes a guide block 61, which is fixedly connected to the upper end of the threaded column 62. When the threaded column 62 is screwed into the threaded ring 42, the guide block 61 is used to guide the threaded column 62 into the threaded ring 42.
[0035] Working principle: Use the outer reinforcement frame 3 to support the lower inner end of the clean laminar flow hood body 2, and then use the inner reinforcement frame 4 to support the inside of the outer reinforcement frame 3 to increase the lower strength of the clean laminar flow hood body 2, thereby increasing the stability of the lower structure of the clean laminar flow hood body 2, and facilitating the smooth opening and closing of the filter frame 5. Unscrew the bolts 6 from the inner reinforcement frame 4, and then remove the filter frame 5. Otherwise, reassemble the filter frame 5, and increase the stability of the closed state of the filter frame 5 through the threaded connection of the bolts 6.
[0036] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.
[0037] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. A high-strength clean laminar flow hood, comprising a clean laminar flow hood body (2), characterized in that: The clean laminar flow hood body (2) is fixedly connected to an external reinforcement frame (3), the inner end of the external reinforcement frame (3) is fixedly connected to an internal reinforcement frame (4), a filter mesh frame (5) is movably embedded in the lower part of the clean laminar flow hood body (2), a bolt (6) is rotatably mounted on the filter mesh frame (5), and the upper part of the bolt (6) is threadedly mounted on the middle part of the internal reinforcement frame (4).
2. A high-strength clean laminar flow hood according to claim 1, characterized in that: The clean laminar flow hood body (2) further comprises a hood body (21) and a reinforcement frame (22), wherein the reinforcement frame (22) is fixedly connected to the lower inner end of the hood body (21).
3. A high-strength clean laminar flow hood according to claim 1, characterized in that: The outer reinforcement frame (3) comprises an annular frame (31) and a reinforcement rod (32), wherein the reinforcement rod (32) is fixedly connected to the outer end of the annular frame (31).
4. A high-strength clean laminar flow hood according to claim 1, characterized in that: The inner reinforcing frame (4) comprises a connecting rod (41) and a threaded ring (42); a guide groove (43) is provided at the lower portion of the threaded ring (42); and the connecting rod (41) is evenly fixedly connected to the outer end of the threaded ring (42).
5. A high-strength clean laminar flow hood according to claim 1, characterized in that: The filtering mesh frame (5) comprises an outer frame (51), a mesh frame (52) and a bearing (53); the mesh frame (52) is fixedly connected to the inner end of the outer frame (51), and the bearing (53) is fixedly connected to the inner end of the mesh frame (52).
6. A high-strength clean laminar flow hood according to claim 1, characterized in that: The bolt (6) comprises a threaded column (62), a first retaining ring (63), a second retaining ring (64) and a knob (65); the knob (65) is fixedly connected to the lower ends of the threaded column (62) and the second retaining ring (64).
7. A high-strength clean laminar flow hood according to claim 6, characterized in that: The bolt (6) further comprises a guide block (61), wherein the guide block (61) is fixedly connected to the upper end of the threaded column (62).