Protective device of proximity sensor
By designing a protective component including a middle plate, side plate and cleaning component, the fault problem of proximity sensor in a splashing environment is solved, and multiple protection and automatic cleaning functions of the sensor are realized, ensuring the stable operation and efficient use of the sensor.
Patent Information
- Application Number
- CN202421995144.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-17
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-17
AI Technical Summary
When used in places where chemicals, organic solvents or other substances may splash, proximity sensors are susceptible to external substances such as liquid splash, dust and moisture, resulting in failure and reduced use effect.
A protective component including an intermediate plate, a first side plate and a second side plate is designed, and these plates are connected by the first and second connecting sleeves, and a cleaning component and an elastic cloth are provided on the first side plate, and an elastic cloth and a ring are provided on the second side plate to form a protective structure with the sleeve disposed outside the proximity sensor. This protective component not only prevents dust and water vapor from adhering, but also automatically cleans the probe through the cleaning component to prevent splashing of chemical, organic solvents or other substances.
It effectively prevents the impact of dust, water vapor, chemical, organic solvents and other substances on the proximity sensor, ensures that the sensor works stably in a variety of environments, and reduces the need for manual maintenance through automatic cleaning function.
Smart Images
Figure CN222895756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of proximity sensor protection, in particular to a protection device for a proximity sensor. Background Art
[0002] Proximity sensor is a general term for sensors that replace contact detection methods such as limit switches and are designed to detect objects without contact. It can convert the movement and presence information of the detected object into electrical signals. Among the detection methods that convert to electrical signals, there are methods that use eddy currents generated in the metal body of the detected object due to electromagnetic induction, methods that capture the capacitance change of electrical signals caused by the proximity of the detected object, and methods such as sharp stones and guide switches.
[0003] If the proximity sensor is used in a place where chemicals, organic solvents or other such substances may splash, the liquid may splash onto the proximity sensor, affecting the effectiveness of the proximity sensor;
[0004] External substances such as dust and moisture attached to the probe of the proximity sensor will have a negative impact on the proximity sensor and cause malfunctions. Utility Model Content
[0005] The purpose of the utility model is to provide a protective device for a proximity sensor to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for a proximity sensor, comprising a proximity sensor body and a protective component, the protective component is sleeved on the proximity sensor body, the protective component comprises a middle plate, a first side plate and a second side plate, the middle plate and the first side plate are connected by a first connecting sleeve, the middle plate and the second side plate are connected by a second connecting sleeve, a cleaning component is arranged on the first side plate, a first elastic cloth and a first elastic ring are arranged on the first side plate, and a second elastic cloth and a second elastic ring are arranged on the second side plate.
[0007] Wherein, the cleaning component comprises a motor, the output shaft of the motor is connected to a rotating shaft, a driving arm is fixedly arranged on the rotating shaft, and a cleaning layer is arranged on the inner side surface of the driving arm.
[0008] Wherein, the motor is fixed on the inner side of the first side plate, and the driving arm and the cleaning layer are located on the outer side of the first side plate.
[0009] Wherein, the first elastic cloth is configured as an annular structure, and the first elastic ring is located on the inner ring of the first elastic cloth, and the outer ring of the first elastic cloth is fixed to the first side plate.
[0010] Wherein, the second elastic fabric is configured as an annular structure, and the second elastic ring is located on the inner ring of the second elastic fabric, and the outer ring of the second elastic fabric is fixed to the second side plate.
[0011] Wherein, a through slot is provided on the middle plate, and a mounting lug is provided on the first side plate.
[0012] Wherein, an external threaded portion is arranged on the outside of the proximity sensor body, and two sets of nuts are threadedly sleeved on the external threaded portion.
[0013] Wherein, a connecting line is arranged at the tail end of the proximity sensor body.
[0014] Wherein, a probe is arranged at the front end of the proximity sensor body.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The utility model sets a protective component on the outside of the proximity sensor to protect the proximity sensor through the protective component to prevent dust and water vapor from adhering to the surface of the proximity sensor, and effectively prevent chemicals, organic solvents or other such substances from splashing onto the surface of the proximity sensor, thereby eliminating negative effects and ensuring the use effect of the proximity sensor. The proximity sensor can work stably in a variety of environments.
[0017] 2. The cleaning component of the utility model works intermittently and regularly, and the cleaning component automatically cleans the probe of the proximity sensor to ensure the use effect of the proximity sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional view of the protective component of the utility model;
[0019] Figure 2 It is a schematic diagram of the assembly of the proximity sensor body and the protection component from one side view of the utility model;
[0020] Figure 3 This is another side view of the assembly of the proximity sensor body and the protection component of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the proximity sensor body of the utility model;
[0022] Figure 5 It is a schematic diagram of the structure of the cleaning component of the utility model.
[0023] In the figure: 1. proximity sensor body; 2. protection component; 11. external threaded portion; 12. nut; 13. connecting wire; 14. probe; 21. middle plate; 22. first side plate; 23. second side plate; 24. cleaning component; 25. first connecting sleeve; 26. second connecting sleeve; 221. first elastic cloth; 222. first elastic ring; 223. mounting lug; 231. second elastic cloth; 232. second elastic ring; 241. motor; 242. rotating shaft; 243. driving arm; 244. cleaning layer. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-5 The utility model provides a technical solution: a protective device for a proximity sensor, comprising a proximity sensor body 1 and a protective assembly 2, the protective assembly 2 is sleeved on the proximity sensor body 1, the protective assembly 2 comprises a middle plate 21, a first side plate 22 and a second side plate 23, the middle plate 21 and the first side plate 22 are connected by a first connecting sleeve 25, the middle plate 21 and the second side plate 23 are connected by a second connecting sleeve 26, a cleaning assembly 24 is arranged on the first side plate 22, a first elastic cloth 221 and a first elastic ring 222 are arranged on the first side plate 22, and a second elastic cloth 231 and a second elastic ring 232 are arranged on the second side plate 23.
[0026] The first elastic cloth 221 and the second elastic cloth 231 both have certain elasticity and can be stretched and extended. The first elastic ring 222 and the second elastic ring 232 have certain elasticity, and the diameters of the ring openings are adjustable under the action of external force.
[0027] When assembling the proximity sensor body 1 and the protection component 2, an external force can be applied to the elastic ring to expand its diameter, so as to facilitate the installation operation. Figure 1 As shown, the proximity sensor body 1 is passed through the middle plate 21, the first side plate 22 and the second side plate 23, and then two sets of nuts 12 and washers are used to fix the proximity sensor body 1 on the middle plate 21;
[0028] After being fixed, the first elastic ring 222 of the first side plate 22 is tightly sleeved on one end of the proximity sensor body 1 by its own elastic force, and the second elastic ring 232 of the second side plate 23 is tightly sleeved on the other end of the proximity sensor body 1 by its own elastic force, so that the protection component 2 is sleeved on the outside of the proximity sensor body 1;
[0029] The proximity sensor body 1 is protected by the protective component 2 to prevent dust and water vapor from adhering to the surface of the proximity sensor body 1, and at the same time effectively prevent chemicals, organic solvents or other such substances from splashing onto the surface of the proximity sensor body 1, thereby eliminating negative effects and ensuring the use effect of the proximity sensor. The proximity sensor can work stably in a variety of environments.
[0030] The cleaning assembly 24 includes a motor 241 , an output shaft of the motor 241 is connected to a rotating shaft 242 , a driving arm 243 is fixedly disposed on the rotating shaft 242 , and a cleaning layer 244 is disposed on the inner side surface of the driving arm 243 .
[0031] When the motor 241 is working, it drives the driving arm 243 to deflect, and the driving arm 243 drives the cleaning layer 244 to deflect synchronously. During the deflection process, the cleaning layer 244 sweeps over the surface of the probe 14 close to the sensor body 1, and wipes off the stains on the surface of the probe 14, thereby cleaning the probe 14.
[0032] Among them, the motor 241 is fixed on the inner side of the first side plate 22, the driving arm 243 and the cleaning layer 244 are located on the outer side of the first side plate 22, and the cleaning component 24 works intermittently and regularly. The cleaning component 24 automatically cleans the probe 14 of the proximity sensor body 1 to ensure the use effect of the proximity sensor, without manual cleaning, saving time and effort.
[0033] Among them, the first elastic cloth 221 is set as an annular structure, and the first elastic ring 222 is located on the inner ring of the first elastic cloth 221, and the outer ring of the first elastic cloth 221 is fixed to the first side plate 22. The first elastic ring 222 relies on its own elastic force to tightly adhere to the surface of the proximity sensor body 1 and seal the connection.
[0034] Among them, the second elastic cloth 231 is set as an annular structure, and the second elastic ring 232 is located on the inner ring of the second elastic cloth 231, and the outer ring of the second elastic cloth 231 is fixed between the second side plate 23, and the second elastic ring 232 relies on its own elastic force to tightly adhere to the surface of the proximity sensor body 1 and seal the connection.
[0035] Among them, a through groove is opened on the middle plate 21, and a mounting lug 223 is provided on the first side plate 22. The middle plate 21 is installed and fixed by the mounting lug 223, so as to realize the installation and fixation of the protective component 2. Since the proximity sensor body 1 and the protective component 2 are fixed, that is, the installation and fixation of the protective component 2 and the proximity sensor body 1 are realized by the mounting lug 223, the fixing method is simple and the assembly and disassembly are convenient.
[0036] Among them, an external threaded portion 11 is provided on the outside of the proximity sensor body 1, and two sets of nuts 12 are threadedly sleeved on the external threaded portion 11. A certain external force is applied to the nuts 12 to rotate the nuts 12, and the proximity sensor body 1 is fixed to the middle plate 21 of the protective component 2 through the nuts 12.
[0037] A connection line 13 is provided at the tail end of the proximity sensor body 1 . The connection line 13 includes a power line and a signal line, and is used to connect the circuit of the proximity sensor body 1 .
[0038] A probe 14 is disposed at the front end of the proximity sensor body 1 , and the target object is detected by the probe 14 .
[0039] Working principle: When in use, assemble the proximity sensor body 1 and the protective component 2, apply external force to the elastic ring to expand its diameter, so as to facilitate the installation operation, and pass the proximity sensor body 1 through the middle plate 21, the first side plate 22 and the second side plate 23, and then use two sets of nuts 12 and washers to fix the proximity sensor body 1 on the middle plate 21. The first elastic ring 222 of the first side plate 22 is tightly sleeved on one end of the proximity sensor body 1 by relying on its own elastic force, and the second elastic ring 232 of the second side plate 23 is tightly sleeved on the other end of the proximity sensor body 1 by relying on its own elastic force, so as to sleeve the protective component 2 on the proximity sensor. On the outside of the main body 1, the protection component 2 and the proximity sensor main body 1 are installed and fixed by installing the lug 223. The proximity sensor main body 1 equipped with the protection component 2 is installed in the specified working position. The proximity sensor main body 1 is protected by the protection component 2. The cleaning component 24 works intermittently and regularly. When the motor 241 works, it drives the driving arm 243 to deflect. The driving arm 243 drives the cleaning layer 244 to deflect synchronously. During the deflection process, the cleaning layer 244 sweeps over the surface of the probe 14 of the proximity sensor main body 1 to wipe off the stains on the surface of the probe 14. The probe 14 of the proximity sensor main body 1 is automatically cleaned by the cleaning component 24.
[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protective device for a proximity sensor, comprising a proximity sensor body (1) and a protective component (2), characterized in that: The protective component (2) is sleeved on the proximity sensor body (1), and comprises an intermediate plate (21), a first side plate (22) and a second side plate (23); the intermediate plate (21) and the first side plate (22) are connected via a first connecting sleeve (25); the intermediate plate (21) and the second side plate (23) are connected via a second connecting sleeve (26); a cleaning component (24) is arranged on the first side plate (22); a first elastic cloth (221) and a first elastic ring (222) are arranged on the first side plate (22); and a second elastic cloth (231) and a second elastic ring (232) are arranged on the second side plate (23).
2. A protective device for a proximity sensor according to claim 1, characterized in that: The cleaning component (24) comprises a motor (241), the output shaft of the motor (241) is connected to a rotating shaft (242), a driving arm (243) is fixedly arranged on the rotating shaft (242), and a cleaning layer (244) is arranged on the inner side surface of the driving arm (243).
3. A protective device for a proximity sensor according to claim 2, characterized in that: The motor (241) is fixed on the inner side of the first side plate (22), and the driving arm (243) and the cleaning layer (244) are located on the outer side of the first side plate (22).
4. The protective device for a proximity sensor according to claim 1, characterized in that: The first elastic fabric (221) is configured as an annular structure, and the first elastic ring (222) is located on the inner ring of the first elastic fabric (221), and the outer ring of the first elastic fabric (221) is fixed to the first side plate (22).
5. The protective device for a proximity sensor according to claim 1, characterized in that: The second elastic fabric (231) is configured as an annular structure, and the second elastic ring (232) is located on the inner ring of the second elastic fabric (231), and the outer ring of the second elastic fabric (231) is fixed to the second side plate (23).
6. The protective device for a proximity sensor according to claim 1, characterized in that: The middle plate (21) is provided with a through slot, and the first side plate (22) is provided with a mounting lug (223).
7. The protective device for a proximity sensor according to claim 1, characterized in that: An external threaded portion (11) is provided on the outside of the proximity sensor body (1), and two sets of nuts (12) are threadedly sleeved on the external threaded portion (11).
8. The protective device for a proximity sensor according to claim 1, characterized in that: A connecting line (13) is provided at the rear end of the proximity sensor body (1).
9. The protective device for a proximity sensor according to claim 1, characterized in that: A probe (14) is provided at the front end of the proximity sensor body (1).