Air guide device for middle housing of crystal watch
By designing a combination of an air collection chamber, a worm gear fan, and a filter sponge in the middle casing of the crystal marking machine, the problem of the air guide system's inability to effectively filter harmful gases is solved, achieving safe gas discharge and simple device maintenance.
Patent Information
- Application Number
- CN202521970326.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-13
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-13
AI Technical Summary
The air duct system in the middle casing of the existing crystal marking machine cannot effectively filter harmful gases, which can lead to worker injuries during maintenance.
Design a central air guide device for a crystal labeling machine, comprising an air collection chamber, a worm gear fan, a filter sponge, and a protective cover. Harmful gases are drawn in by negative pressure suction and filtered in the air collection chamber to ensure the safety of the exhaust air.
It achieves effective filtration of harmful gases, ensures the safety of exhaust air, protects worker health, and simplifies the disassembly and assembly process of the device.
Smart Images

Figure CN224684588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crystal marking machine accessories, and in particular to a wind guide device for the middle outer shell of a crystal marking machine. Background Technology
[0002] Crystal marking machines typically have a ventilation system installed in the middle outer casing. For example, the patent with authorization number CN223100316U, which describes a middle cover with a ventilation system, incorporates this system in the middle outer casing of the crystal marking machine. The purpose of this system is to expel harmful gases trapped beneath the middle cover, preventing them from harming workers during maintenance. However, since the harmful gases are directly discharged, they can still pose a risk to workers. Therefore, further improvements to this technical solution are necessary. Utility Model Content
[0003] The purpose of this invention is to solve the above-mentioned problems and provide a wind guide device for the middle outer shell of a crystal marking machine.
[0004] The technical solution of this utility model is as follows: A middle shell air guide device for a crystal labeling machine includes an air collection chamber and a worm gear fan integrated with the inner wall of the top of the middle shell; the bottom of the air collection chamber is provided with an air inlet and an air outlet; the worm gear fan is installed at the bottom of the air collection chamber; the input end of the worm gear fan is connected to the air outlet; the side of the middle shell is provided with an exhaust outlet; the output end of the worm gear fan is connected to the exhaust outlet; the worm gear fan provides negative pressure suction, so that harmful gases below the middle shell are drawn into the air collection chamber and then discharged from the exhaust outlet; a filter sponge is installed at the air inlet to filter the harmful gases; the filter sponge covers the air inlet to ensure that all harmful gases entering the air collection chamber are filtered.
[0005] Preferably, the gas collection chamber is a box structure; the top four sides of the box structure are welded to the inner wall of the top of the middle outer shell to ensure a closed connection between the gas collection chamber and the top of the middle outer shell.
[0006] Preferably, the air guide device in the middle shell of the crystal label machine also includes a cover and connecting screws; the cover covers the outside of the filter sponge, with ear plates extending to both sides; the ear plates are provided with screw through holes; the bottom of the cover is provided with an air outlet; harmful gases can only pass through the air outlet to pass through the filter sponge; the connecting screws pass through the screw through holes and are threaded to the bottom of the air collection chamber; the cover restricts the filter sponge at the air inlet.
[0007] Furthermore, there are four screw holes, including one round hole and three loop holes; when disassembling and assembling the cover, the connecting screws do not need to be removed from the loop holes, which simplifies the disassembly and assembly process of the cover.
[0008] Furthermore, the air inlet includes several rectangular holes arranged in an array to ensure that the filtered gas enters the air collection chamber as quickly as possible; the air outlet includes several transverse elongated holes; the transverse elongated holes are arranged in several rows; the transverse elongated holes in adjacent rows are staggered to ensure that harmful gases pass through the filter sponge evenly and to ensure that the filter sponge is fully utilized.
[0009] Furthermore, there are two worm gear fans, symmetrically arranged on both sides, to provide negative pressure suction evenly.
[0010] Preferably, the outlet includes a plurality of arrays of vertical elongated holes, which can protect the output end of the worm gear fan.
[0011] Furthermore, the area of the exhaust port is greater than that of the worm gear fan output end; this exhaust port can allow some air to enter, supplementing the air loss below the middle casing.
[0012] Preferably, the air guide device in the middle outer casing of the crystal marking machine also includes a protective cover; the bottom and side openings of the protective cover cover the outside of the worm gear fan and protect the worm gear fan.
[0013] Furthermore, the air guide device in the middle shell of the crystal labeling machine also includes mounting screws; the side opening of the protective cover extends to both sides to form connecting plates; the mounting screws pass through the side of the middle shell and are threadedly connected to the connecting plates to achieve the connection between the protective cover and the middle shell.
[0014] Furthermore, a mounting plate extends outward from the side of the protective cover opposite to the side opening; mounting screws pass through the mounting plate and are threaded to the bottom of the air collection chamber, thus connecting the protective cover and the air collection chamber.
[0015] The beneficial effects of this utility model are as follows: The air guide device in the middle shell of the crystal label machine of this utility model has the following advantages: (1) The filter sponge of this utility model filters harmful gases and can ensure that the air discharged from the outlet is filtered. (2) The staggered arrangement of adjacent rows of transverse elongated holes in this utility model can ensure that harmful gases pass through the filter sponge evenly and ensure that the filter sponge is fully utilized. Attached Figure Description
[0016] Figure 1 This is a partial sectional view of the front view of the air guide device of the middle shell of the crystal marking machine, which is installed on the middle shell of the crystal marking machine. Figure 2 yes Figure 1 AA section view; Figure 3 yes Figure 2 BB cross-sectional view; Figure 4 yes Figure 1 A bottom view; Figure 5 This is a perspective view of the air guide device for the middle outer shell of the crystal marking machine installed on the middle outer shell of the crystal marking machine; In the diagram: 00. Middle outer shell, 011. Vertical elongated hole, 1. Air collection chamber, 111. Filter sponge, 112. Rectangular hole, 12. Air outlet, 2. Worm gear fan, 3. Cover, 31. Ear plate, 311. Round hole, 312. Gourd hole, 321. Horizontal elongated hole, 4. Connecting screw, 5. Protective cover, 51. Connecting plate, 52. Mounting plate, 521. Semi-elongated hole, 522. Rectangular notch, 6. Mounting screw. Detailed Implementation
[0017] Example 1: See Figure 1-5 A central casing air guide device for a crystal labeling machine includes an air collection chamber 1 integral with the inner top wall of the central casing 00 and a worm gear fan 2. The bottom of the air collection chamber 1 is provided with an air inlet and an air outlet 12. The worm gear fan 2 is installed at the bottom of the air collection chamber 1. The input end of the worm gear fan 2 is connected to the air outlet 12. The side of the central casing 00 is provided with an exhaust outlet. The output end of the worm gear fan is connected to the exhaust outlet. The worm gear fan provides negative pressure suction, so that harmful gases below the central casing 00 are drawn into the air collection chamber 1 and then discharged from the exhaust outlet. A filter sponge 111 is installed at the air inlet to filter the harmful gases. The filter sponge 111 covers the air inlet to ensure that all harmful gases entering the air collection chamber 1 are filtered.
[0018] Compared with the prior art, the filter sponge 111 of this utility model filters harmful gases and can ensure that the air discharged from the outlet is filtered.
[0019] The gas collection chamber 1 is a box structure; the top four sides of the box structure are welded to the inner wall of the top of the middle outer shell 00 to ensure a closed connection between the gas collection chamber 1 and the top of the middle outer shell 00.
[0020] The air guide device in the middle shell of the crystal label machine also includes a cover 3 and a connecting screw 4; the cover 3 covers the outside of the filter sponge 111, and ear plates 31 extend outwards on both sides; the ear plates 31 are provided with screw holes; the bottom of the cover 3 is provided with an air inlet; harmful gases can only pass through the air inlet to pass through the filter sponge 111; the connecting screw 4 passes through the screw holes and is threaded to the bottom of the air collection chamber 1; the cover 3 restricts the filter sponge 111 at the air inlet.
[0021] There are four screw holes, including one round hole 311 and three gourd holes 312; when disassembling and assembling the cover 3, the connecting screw 4 does not need to be removed from the gourd hole 312, which simplifies the disassembly and assembly process of the cover 3.
[0022] The air inlet includes several rectangular holes 112 arranged in an array to ensure that the filtered gas enters the air collection chamber 1 as soon as possible; the air outlet includes several transverse elongated holes 321; the transverse elongated holes 321 are arranged in several rows; the transverse elongated holes 321 in adjacent rows are staggered to ensure that harmful gases pass through the filter sponge 111 evenly and to ensure that the filter sponge 111 is fully utilized.
[0023] There are two worm gear fans 2, symmetrically arranged on both sides, to provide negative pressure suction evenly.
[0024] The outlet includes several arrays of vertical elongated holes 011, which can protect the output end of the worm gear fan 2.
[0025] The area of the exhaust port is greater than that of the worm gear fan 2 output end; this exhaust port can allow some air to enter, supplementing the air loss below the middle casing 00.
[0026] The air guide device in the middle shell of the crystal marking machine also includes a protective cover 5; the bottom and side openings of the protective cover 5 cover the outside of the worm gear fan 2 and protect the worm gear fan 2.
[0027] The working principle of this embodiment is as follows: The turbine fan provides negative pressure suction, drawing harmful gases from below the middle outer casing 00 into the gas collection chamber 1, and then discharging them from the outlet; the filter sponge 111 filters the harmful gases; the top perimeter of the gas collection chamber 1 is welded to the inner wall of the top of the middle outer casing 00, ensuring a sealed connection between the gas collection chamber 1 and the top of the middle outer casing 00. The rectangular holes 112 ensure that the filtered gas enters the gas collection chamber 1 as quickly as possible; the staggered arrangement of the transverse elongated holes 321 in adjacent rows ensures that the harmful gases pass through the filter sponge 111 evenly, ensuring that the filter sponge 111 is fully utilized.
[0028] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the air guide device of the middle shell of the crystal label machine also includes mounting screws 6; the side opening of the protective cover 5 extends to both sides to form connecting plates 51; the mounting screws 6 penetrate through the side of the middle shell 00 and are threadedly connected to the connecting plates 51 to realize the connection between the protective cover 5 and the middle shell 00.
[0029] A mounting plate 52 extends outward from the side of the protective cover 5 opposite to the side opening; mounting screws 6 pass through the mounting plate 52 and are threaded to the bottom of the air collection chamber 1 to connect the protective cover 5 and the air collection chamber 1.
[0030] The mounting plate 52 has a semi-elongated hole 521 extending toward the protective cover 5; the side of the protective cover 5 has a rectangular notch 522 communicating with the semi-elongated hole 521; the height of the rectangular notch 522 is greater than the bolt head thickness of the mounting screw 6; thus, when installing the protective cover 5, it is not necessary to remove the corresponding mounting screw 6, simplifying the installation process of the protective cover 5.
Claims
1. A wind-guiding device for the middle outer shell of a crystal labeling machine, comprising an air collecting chamber integrally formed with the inner wall of the top of the middle outer shell and a worm gear fan; an air inlet and an air outlet are provided at the bottom of the air collecting chamber; the worm gear fan is installed at the bottom of the air collecting chamber; the input end of the worm gear fan is connected to the air outlet; an exhaust port is provided on the side of the middle outer shell; the output end of the worm gear fan is connected to the exhaust port; characterized in that, The air inlet is equipped with a filter sponge; the filter sponge covers the air inlet. The air guide device in the middle shell of the crystal labeling machine also includes a cover and connecting screws; the cover covers the outside of the filter sponge and extends ear plates to both sides; the ear plates are provided with screw holes; the bottom of the cover is provided with an air outlet; the connecting screws pass through the screw holes and are threaded to the bottom of the air collection chamber. The air inlet includes several rectangular holes arranged in an array; the air outlet includes several transverse elongated holes; the transverse elongated holes are arranged in several rows; the transverse elongated holes in adjacent rows are staggered.
2. The air guide device for the middle outer casing of the crystal labeling machine according to claim 1, characterized in that: The gas collection chamber is a box-shaped structure; the top of the box-shaped structure is welded to the inner wall of the top of the middle outer shell.
3. The air guide device for the middle outer casing of the crystal labeling machine according to claim 1, characterized in that: There are four screw holes, including one round hole and three gourd-shaped holes.
4. The air guide device for the middle outer casing of the crystal marking machine according to claim 1, characterized in that: The outlet consists of several arrays of vertical elongated holes.
5. The air guide device for the middle outer casing of the crystal marking machine according to claim 4, characterized in that: The area of the outlet is greater than that of the worm gear fan output end.
6. The air guide device for the middle outer casing of the crystal marking machine according to claim 1, characterized in that: It also includes a protective cover; the bottom and side openings of the protective cover cover the outside of the worm gear fan.
7. The air guide device for the middle outer casing of the crystal marking machine according to claim 6, characterized in that: It also includes mounting screws; the side openings of the protective cover extend to both sides to form connecting plates; the mounting screws pass through the side of the central housing and are threaded into the connecting plates.
8. The air guide device for the middle outer casing of the crystal marking machine according to claim 7, characterized in that: The protective cover extends outward from the side opposite the side opening, with a mounting plate extending outward; mounting screws pass through the mounting plate and are threaded into the bottom of the air collection chamber.
Citation Information
Patent Citations
Middle cover plate with air guide system
CN223100316U