A ceiling-mounted sterilizer
By combining synchronous belt and synchronous wheel transmission with a limiting mechanism, the problems of low fixing efficiency and loosening/falling in existing ceiling-mounted disinfection machines have been solved, achieving rapid installation and stable fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GANGRONG MEDICAL EQUIPMENT CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-09
AI Technical Summary
Existing ceiling-mounted sterilizers are fixed with multiple bolts and nuts, which results in slow fixing efficiency and the nuts are prone to unraveling due to automatic rotation under stress on the axis, causing the sterilizer to loosen or fall off.
The system uses a synchronous belt and four synchronous pulleys for transmission, combined with a limiting mechanism. The synchronous belt drives the four internal threaded cylinders to rotate synchronously. The design of the limiting pin and rotating seat prevents the internal threaded cylinders from rotating automatically due to axial tension, thus achieving quick installation and avoiding loosening.
This improves the installation efficiency of the sterilizer housing, avoids loosening or falling off due to the automatic rotation of the nut shaft under force, and ensures the stability and safety of the sterilizer.
Smart Images

Figure CN224340301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disinfection machine technology, and in particular to a ceiling-mounted disinfection machine. Background Technology
[0002] Air purifiers are machines that disinfect the air through filtration, purification, and sterilization. Besides killing bacteria, viruses, mold, and spores, some models can also remove organic pollutants such as formaldehyde and phenol from indoor air, and can even kill or filter allergens like pollen. They also effectively remove smoke and odors from cigarettes, unpleasant odors from bathrooms, and body odor. The disinfection effect is reliable, and they can operate even when people are present, allowing for coexistence between people and the machine.
[0003] A search revealed a ceiling-mounted plasma air sterilizer with publication number CN220453887U. This sterilizer includes a housing cover, a plasma air sterilization component housed within the housing, and a hanging bracket on the upper part of the housing. The housing comprises a top plate, a front plate, a rear plate, a left side plate, and a right side plate. The top plate, front plate, and rear plate are made of sheet metal and are integrally formed by stamping. Left and right brackets for fixing the plasma air sterilization component are screwed onto both sides of the top plate. The left side plate is screwed onto the left bracket, and the right side plate is screwed onto the right bracket. The housing is first divided into the top plate, front plate, rear plate, left side plate, and right side plate. The top plate, front plate, and rear plate are made of sheet metal and are integrally formed by stamping. During installation, the plasma air sterilization component and the left and right brackets are fixed to the top plate, and then the left and right side plates are installed. The overall structure is simple, easy to install, and improves production assembly efficiency.
[0004] The device in the disclosed patent requires multiple bolts and nuts for fixing during use, which is not only slow in fixing efficiency, but also prone to unraveling due to the automatic rotation of the nut axis under force after a period of use, causing the ceiling-mounted sterilizer to loosen or even fall off. Utility Model Content
[0005] In response to the technical problems in existing patents, where the device requires multiple bolts and nuts for fixing during use, which is not only slow in fixing efficiency but also prone to unraveling due to automatic rotation of the nut axis under stress after a period of use, leading to the ceiling-mounted sterilizer loosening or even falling off, this utility model provides a ceiling-mounted sterilizer.
[0006] The technical solution adopted by this utility model is: a ceiling-mounted disinfection machine, including: a disinfection machine housing, a fixing mechanism, and a limiting mechanism;
[0007] The fixing mechanism includes a mounting frame fixedly sleeved on the disinfection machine housing, four internally threaded cylinders rotatably fitted on the mounting frame, a synchronous pulley fixedly sleeved on the internally threaded cylinders, and a synchronous belt that is driven by the four synchronous pulleys. The mounting frame is a U-shaped frame structure.
[0008] The limiting mechanism includes a limiting disc fixedly sleeved on the internal threaded cylinder, a plurality of positioning grooves circumferentially arrayed on the side of the limiting disc, a rotating seat rotatably fitted on the mounting frame corresponding to the limiting disc, and a limiting pin elastically slidably fitted in the rotating seat, wherein the limiting pin corresponds to the positioning groove.
[0009] Furthermore, the mounting frame has a groove on its upper side, the limiting plate is located in the groove, the height of the upper side of the limiting plate is the same as the height of the upper side of the mounting frame, the bottom end of the internal threaded cylinder is provided with a first handwheel, the upper end of the first handwheel is provided with an mounting cylinder, and the mounting cylinder is fixedly sleeved on the bottom end of the internal threaded cylinder.
[0010] Furthermore, the bottom of the mounting frame is provided with a protective cover, which is a U-shaped frame structure. The protective cover is fitted onto the sterilizer housing. The vertical cross-section of the protective cover is L-shaped. The upper side of the protective cover is provided with a through hole corresponding to the internal threaded cylinder. The internal threaded cylinder is rotatably fitted in the through hole. The synchronous pulley and the synchronous belt are located inside the protective cover.
[0011] Furthermore, the bottom end of the mounting frame is provided with a hole, which communicates with the groove, and a first bearing is provided inside the hole, with one end of the internally threaded cylinder fixed inside the first bearing.
[0012] Furthermore, both the rotating seat and the limiting pin are cylindrical structures. The rotating seat has a polygonal groove at one end near the limiting pin, and the limiting pin has a polygonal protrusion at one end near the rotating seat. One end of the polygonal protrusion is slidably fitted in the polygonal groove. A spring damper is fixed in the polygonal groove, and one end of the spring damper is fixedly connected to the end of the polygonal protrusion that extends into the polygonal groove.
[0013] Furthermore, the mounting frame has a circular hole on its side corresponding to the rotating seat, and the rotating seat and the limiting pin are rotatably fitted in the circular hole. The limiting pin has an inclined surface at one end near the positioning groove.
[0014] Furthermore, one end of the circular hole is provided with a flared groove, and a second bearing is fixed inside the flared groove. One end of the rotating seat is fixed inside the second bearing. One end of the rotating seat extending out of the circular hole is provided with a second handwheel, and one end of the second handwheel is provided with a pointer, which corresponds to the inclined surface.
[0015] The beneficial effects of this utility model are:
[0016] By setting up a synchronous belt and cooperating with four synchronous pulleys, rotating one of the first handwheels facilitates the synchronous rotation of four internal threaded cylinders. The threads are installed on the pre-embedded screws, which improves the installation efficiency of the disinfection machine housing.
[0017] By setting a limiting mechanism, the limiting pin is elastically engaged in one of the positioning slots on the limiting plate. The second handwheel drives the rotating seat and the limiting pin to rotate. The index indicator drives the inclined plane to rotate from vertical to inclined upward, which facilitates limiting the position of the internal threaded cylinder after rotation. This helps to prevent the internal threaded cylinder from automatically rotating under axial tension and causing the thread to unravel, thus reducing the probability of the sterilizer housing becoming loose or falling off.
[0018] The orientation of the inclined plane can be adjusted by rotating the pointer, which facilitates the adjustment of the rotatable direction of the internal threaded cylinder or stops the internal threaded cylinder, and facilitates the quick installation or disassembly of the sterilizer housing. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is a bottom view of this utility model;
[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0022] Figure 4 This is a schematic diagram of the mating structure of the synchronous pulley and synchronous belt in this utility model;
[0023] Figure 5 This is a schematic diagram of the pointer structure in this utility model.
[0024] The diagram is marked as follows:
[0025] 1. Disinfection machine housing; 2. Fixing mechanism; 201. Mounting frame; 202. Internal threaded cylinder; 203. Synchronous pulley; 204. Synchronous belt; 205. Groove; 206. First handwheel; 207. Mounting cylinder; 208. Protective cover; 209. Through hole; 210. Hole; 211. First bearing; 3. Limiting mechanism; 301. Limiting plate; 302. Positioning groove; 303. Rotary seat; 304. Limiting pin; 305. Polygonal groove; 306. Polygonal protrusion; 307. Spring damper; 308. Round hole; 309. Inclined surface; 310. Flared groove; 311. Second bearing; 312. Second handwheel; 313. Indicator. Detailed Implementation
[0026] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", 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.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described below.
[0029] To address the problems existing in the background art, this application proposes the following technical solution:
[0030] A ceiling-mounted disinfection machine includes: a disinfection machine housing 1, a fixing mechanism 2, and a limiting mechanism 3;
[0031] The fixing mechanism 2 includes a mounting frame 201 fixedly sleeved on the sterilizer housing 1, four internal threaded cylinders 202 rotatably fitted on the mounting frame 201, a synchronous pulley 203 fixedly sleeved on the internal threaded cylinders 202, and a synchronous belt 204 that is driven by the four synchronous pulleys 203. The mounting frame 201 is a U-shaped frame structure.
[0032] The limiting mechanism 3 includes a limiting plate 301 fixedly sleeved on the internal threaded cylinder 202, multiple positioning grooves 302 arranged in a circumferential array on the side of the limiting plate 301, a rotating seat 303 rotatably fitted on the mounting frame 201 and corresponding to the limiting plate 301, and a limiting pin 304 elastically slidingly fitted in the rotating seat 303, the limiting pin 304 corresponding to the positioning grooves 302.
[0033] Furthermore, the upper side of the mounting frame 201 is provided with a groove 205, and the limiting plate 301 is located in the groove 205. The height of the upper side of the limiting plate 301 is the same as the height of the upper side of the mounting frame 201. The bottom end of the internal threaded cylinder 202 is provided with a first handwheel 206, and the upper end of the first handwheel 206 is provided with a mounting cylinder 207. The mounting cylinder 207 is fixedly sleeved on the bottom end of the internal threaded cylinder 202. The bottom end of the mounting frame 201 is provided with a protective cover 208. The protective cover 208 has a U-shaped frame structure and is sleeved on the disinfection machine housing 1. The vertical section of the 8 is an L-shaped structure. The upper side of the protective cover 208 is provided with a through hole 209 corresponding to the internal threaded cylinder 202. The internal threaded cylinder 202 is rotatably fitted in the through hole 209. The synchronous pulley 203 and the synchronous belt 204 are located inside the protective cover 208. The bottom end of the mounting frame 201 is provided with a hole 210, which is connected to the groove 205. A first bearing 211 is provided in the hole 210. One end of the internal threaded cylinder 202 is fixed in the first bearing 211, which facilitates the improvement of the rotational stability of the internal threaded cylinder 202 through the first bearing 211.
[0034] Furthermore, both the rotating base 303 and the limiting pin 304 are cylindrical structures. The rotating base 303 has a polygonal groove 305 near the limiting pin 304, and the limiting pin 304 has a polygonal protrusion 306 near the rotating base 303. One end of the polygonal protrusion 306 is slidably fitted within the polygonal groove 305. A spring damper 307 is fixed within the polygonal groove 305, with one end of the spring damper 307 fixedly connected to the end of the polygonal protrusion 306 that extends into the polygonal groove 305. The side of the mounting frame 201 has a circular hole 308 corresponding to the rotating base 303. The rotating seat 303 and the limiting pin 304 are rotatably fitted in the round hole 308. The end of the limiting pin 304 near the positioning groove 302 is provided with an inclined surface 309. The end of the round hole 308 is provided with a flared groove 310. A second bearing 311 is fixed in the flared groove 310. One end of the rotating seat 303 is fixed in the second bearing 311. The end of the rotating seat 303 extending out of the round hole 308 is provided with a second handwheel 312. One end of the second handwheel 312 is provided with a pointer 313. The pointer 313 corresponds to the inclined surface 309, which facilitates the improvement of the rotation stability of the rotating seat 303 through the second bearing 311.
[0035] Working principle: The internal threaded cylinder 202 is aligned with the pre-embedded screw on the roof. A synchronous belt 204 and four synchronous pulleys 203 are used for transmission. Rotating one of the first handwheels 206 facilitates the synchronous rotation of the four internal threaded cylinders 202, which are then threaded onto the pre-embedded screw, improving the installation efficiency of the disinfection machine housing 1. When the internal threaded cylinder 202 rotates, it drives the limiting plate 301 to rotate. The inclined surface 309 presses against the limiting pin 304, which slides elastically through the spring damper 307. When the internal threaded cylinder 202 stops rotating, the limiting pin 304 elastically engages with one of the positioning grooves 3 on the limiting plate 301. Within 02, the second handwheel 312 drives the rotating seat 303, polygonal protrusion 306, and limit pin 304 to rotate. The pointer 313 indicates that the inclined surface 309 is rotated from vertical to inclined upward, which helps to limit the position of the internal threaded cylinder 202 after rotation. This helps to prevent the internal threaded cylinder 202 from automatically rotating under axial tension, which could cause the threads to unravel and lead to the probability of the sterilizer housing 1 becoming loose or falling off. The pointer 313 can be rotated to adjust the orientation of the inclined surface 309, which helps to adjust the rotatable direction of the internal threaded cylinder 202 or prevent the internal threaded cylinder 202 from rotating, making it easy to quickly install or remove the sterilizer housing 1.
[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0037] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A ceiling-mounted sterilizer, characterized in that, include: Disinfection machine housing (1), fixing mechanism (2), limiting mechanism (3); The fixing mechanism (2) includes a mounting frame (201) fixedly sleeved on the disinfection machine housing (1), four internally threaded cylinders (202) rotatably fitted on the mounting frame (201), a synchronous pulley (203) fixedly sleeved on the internally threaded cylinders (202), and a synchronous belt (204) transmissionally fitted on the four synchronous pulleys (203). The mounting frame (201) is a U-shaped frame structure. The limiting mechanism (3) includes a limiting plate (301) fixedly sleeved on the internal threaded cylinder (202), a plurality of positioning grooves (302) arranged circumferentially on the side of the limiting plate (301), a rotating seat (303) rotatably fitted on the mounting frame (201) and corresponding to the limiting plate (301), and a limiting pin (304) elastically slidingly fitted in the rotating seat (303), wherein the limiting pin (304) corresponds to the positioning groove (302).
2. The ceiling-mounted sterilizer according to claim 1, characterized in that, The mounting frame (201) has a groove (205) on its upper side. The limiting plate (301) is located in the groove (205). The height of the upper side of the limiting plate (301) is the same as the height of the upper side of the mounting frame (201). The bottom end of the internal threaded cylinder (202) is provided with a first handwheel (206). The upper end of the first handwheel (206) is provided with an mounting cylinder (207). The mounting cylinder (207) is fixedly sleeved on the bottom end of the internal threaded cylinder (202).
3. A ceiling-mounted sterilizer according to claim 2, characterized in that, The bottom of the mounting frame (201) is provided with a protective cover (208). The protective cover (208) is a U-shaped frame structure. The protective cover (208) is fitted onto the disinfection machine housing (1). The vertical section of the protective cover (208) is an L-shaped structure. The upper side of the protective cover (208) is provided with a through hole (209) corresponding to the internal threaded cylinder (202). The internal threaded cylinder (202) is rotatably fitted in the through hole (209). The synchronous pulley (203) and the synchronous belt (204) are located inside the protective cover (208).
4. A ceiling-mounted sterilizer according to claim 3, characterized in that, The mounting frame (201) has a hole (210) at the bottom end, the hole (210) is connected to the groove (205), a first bearing (211) is provided in the hole (210), and one end of the internal threaded cylinder (202) is fixed in the first bearing (211).
5. A ceiling-mounted sterilizer according to claim 1, characterized in that, Both the rotating base (303) and the limiting pin (304) are cylindrical structures. The rotating base (303) has a polygonal groove (305) near the end of the limiting pin (304), and the limiting pin (304) has a polygonal protrusion (306) near the end of the rotating base (303). One end of the polygonal protrusion (306) is slidably fitted in the polygonal groove (305). A spring damper (307) is fixed in the polygonal groove (305), and one end of the spring damper (307) is fixedly connected to the end of the polygonal protrusion (306) that extends into the polygonal groove (305).
6. A ceiling-mounted sterilizer according to claim 5, characterized in that, The mounting frame (201) has a circular hole (308) on its side that corresponds to the rotating seat (303). The rotating seat (303) and the limiting pin (304) are rotatably fitted in the circular hole (308). The limiting pin (304) has an inclined surface (309) at one end near the positioning groove (302).
7. A ceiling-mounted sterilizer according to claim 6, characterized in that, One end of the circular hole (308) is provided with a flared groove (310), and a second bearing (311) is fixed inside the flared groove (310). One end of the rotating seat (303) is fixed inside the second bearing (311). One end of the rotating seat (303) extending out of the circular hole (308) is provided with a second handwheel (312), and one end of the second handwheel (312) is provided with a pointer (313). The pointer (313) corresponds to the inclined surface (309).
Citation Information
Patent Citations
Ceiling type plasma air disinfection machine
CN220453887U