A tool for detecting the service life of a proximity switch

Abstract

The present invention relates to the field of household appliance technology, and in particular to a proximity switch service life detection tool, the proximity switch service life detection tool comprising a first station and a second station, the second station being fixedly arranged and having a proximity switch to be detected fixed thereon, the first station being fixed with a magnet and connected with a push rod assembly, the push rod assembly pushing the second station away from or close to the first station, the push rod assembly being provided with an electromagnetic induction block, the side of the push rod assembly being provided with an electromagnetic sensor, the electromagnetic sensor being connected with a magnetic induction digital display counter, the proximity switch service life detection tool can accurately detect whether the service life of the proximity switch meets the standard.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a tool for detecting the service life of a proximity switch. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is a civilian product that keeps food or other items at a constant low temperature. The cabinet contains a compressor, an ice maker, a cabinet or box for freezing, and a storage box with a refrigeration device.

[0003] Nowadays, with the maturity of refrigerators and the diversification of user requirements, the light switches of each compartment of refrigerators are mainly realized by door light switches. Since the external structure of door light switches is relatively prominent and the internal mechanical performance reliability of door light switches is poor, most high-end refrigerators have gradually turned to electromagnetic proximity switches to realize this lighting function. At present, there is still no device to detect the service life of electromagnetic proximity switches, which leads to problems and complaints when electromagnetic proximity switches are used. Summary of the invention

[0004] The purpose of the present invention is to avoid the shortcomings of the prior art and provide a proximity switch service life detection tool, which can accurately detect whether the service life of the proximity switch meets the standard.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] Provided is a proximity switch service life detection tool, comprising a first station and a second station, wherein the second station is fixedly arranged and a proximity switch to be detected is fixed thereon, a magnet is fixed on the first station and is connected to a push rod assembly, the push rod assembly pushes the second station away from or close to the first station, an electromagnetic induction block is arranged on the push rod assembly, an electromagnetic sensor is arranged on the side of the push rod assembly, and the electromagnetic sensor is connected to a magnetic induction digital display counter;

[0007] When the push rod assembly pushes the first workstation to approach the second workstation, the proximity switch is turned on and the electromagnetic induction block is close to the electromagnetic sensor, and the magnetic induction digital counter records the number of switch closures; when the push rod assembly pulls the first workstation away from the second workstation, the proximity switch is turned off and the electromagnetic induction block is away from the electromagnetic sensor, and the magnetic induction digital counter does not record the number of switch closures.

[0008] In some embodiments, the push rod assembly includes a first push rod and a second push rod, the head end of the first push rod is connected to the first workstation, the tail end of the first push rod is connected to the head end shaft of the second push rod, the tail end shaft of the second push rod is connected to one end of the electromagnetic induction block, and the other end of the electromagnetic induction block is fixed on the driving shaft of the motor. The driving shaft rotates the electromagnetic induction block to drive the second push rod, and the second push rod drives the first push rod, which drives the first workstation to move closer to or away from the second workstation.

[0009] In some embodiments, a fixing frame is provided on the side of the push rod assembly, the electromagnetic sensor is fixed on the fixing frame, and the sensing probe of the electromagnetic sensor points to the second push rod.

[0010] In some embodiments, the tail end of the electromagnetic induction block is connected to the tail end rotation shaft of the second push rod, and the head end of the electromagnetic induction block is fixedly connected to the driving shaft.

[0011] In some embodiments, a shaft sleeve is disposed on the fixing frame, and the first push rod passes through the shaft sleeve.

[0012] In some embodiments, one end of the second station is connected to the push rod assembly, and the other end of the second station is connected to a guide rod, and the guide rod can slide on the slide rail.

[0013] In some embodiments, the first station is provided with a plurality of proximity switches to be tested, and the second station is provided with a plurality of magnets corresponding to the proximity switches to be tested.

[0014] In some embodiments, the proximity switch to be tested is connected to an LED light.

[0015] The beneficial effects of the tooling for detecting the service life of a proximity switch of the present invention are as follows:

[0016] The proximity switch service life detection tooling of the present invention utilizes the pushing action of the pushing component so that the electromagnetic induction block can induce electromagnetic induction with the electromagnetic sensor only when the magnet on the second station is close to the proximity switch on the first station, and then the magnetic induction digital display counter automatically calculates the number of magnetic induction times, which is the number of closing times of the proximity switch. Under the action of the second station, the proximity switch undergoes multiple closing and opening operations, which provides a convenient method for verifying the life of the proximity switch, thereby knowing the service life of the proximity switch, effectively controlling product quality, and reducing the risk of after-sales complaints. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a top view of a proximity switch service life detection tool according to an embodiment.

[0018] Figure 2 It is a structural schematic diagram of a proximity switch service life detection tooling according to an embodiment.

[0019] Reference numerals

[0020] The first station 1; the second station 2; the proximity switch 3; the magnet 4; the push rod assembly 5; the electromagnetic induction block 6; the electromagnetic sensor 7; the first push rod 9; the second push rod 10; the motor 11; the drive shaft 12; the fixing frame 13; the bushing 14; the guide rod 15; and the slide rail 16. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0022] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms of "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] Example

[0025] The tooling for detecting the service life of the proximity switch 3 disclosed in this embodiment, Figure 1-Figure 2 As shown, it includes a first station 1 and a second station 2, the second station 2 is fixedly arranged and a proximity switch 3 to be detected is fixed thereon, the first station 1 is fixed with a magnet 4 and connected with a push rod assembly 5, the push rod assembly 5 pushes the second station 2 away from or close to the first station 1, the push rod assembly 5 is provided with an electromagnetic induction block 6, the side of the push rod assembly 5 is provided with an electromagnetic sensor 7, and the electromagnetic sensor 7 is connected with a magnetic induction digital display counter;

[0026] When the push rod assembly 5 pushes the first workstation 1 to approach the second workstation 2, the proximity switch 3 is turned on and the electromagnetic induction block 6 is close to the electromagnetic sensor 7, and the magnetic induction digital counter records the number of switch closures; when the push rod assembly 5 pulls the first workstation 1 away from the second workstation 2, the proximity switch 3 is disconnected and the electromagnetic induction block 6 is away from the electromagnetic sensor 7, and the magnetic induction digital counter does not record the number of switch closures.

[0027] Only when the magnet 4 on the second station 2 is close to the proximity switch 3 on the first station 1, the electromagnetic induction block 6 can induce electromagnetic induction with the electromagnetic sensor 7, and then the magnetic induction digital display counter automatically calculates the number of magnetic induction times, which is the number of closing times of the proximity switch 3. The proximity switch 3 has been closed and opened many times, which provides a convenient method for verifying the life of the proximity switch 3, so that the service life of the proximity switch 3 can be known.

[0028] Figure 1-Figure 2 As shown, the push rod assembly 5 includes a first push rod 9 and a second push rod 10. The head end of the first push rod 9 is connected to the first station 1, the tail end of the first push rod 9 is connected to the head end shaft of the second push rod 10, the tail end shaft of the second push rod 10 is connected to one end of the electromagnetic induction block 6, and the other end of the electromagnetic induction block 6 is fixed on the drive shaft 12 of the motor 11. The drive shaft 12 rotates the electromagnetic induction block 6 to drive the second push rod 10, and the second push rod 10 drives the first push rod 9, and the first push rod drives the first station 1 to approach or move away from the second station 2. When the motor 11 rotates, its rotating drive shaft drives the electromagnetic induction block 6 to rotate, and the rotating electromagnetic induction block 6 drives the second push rod 10 to move forward. When the second push rod 10 moves forward, the second push rod 10 pushes the first push rod 9 so that the first push rod 9 drives the second station 2 to approach the first station 1 (close the proximity switch 3), and at the same time, the electromagnetic induction block 6 rotates to the corresponding electromagnetic sensor 7 so that the magnetic induction digital display counter just calculates that the proximity switch 3 is closed.

[0029] Figure 1 As shown, a fixing frame 13 is provided on the side of the push rod assembly 5 , and the electromagnetic sensor 7 is fixed on the fixing frame 13 . The sensing probe of the electromagnetic sensor 7 points to the second push rod 10 , so that it is convenient for the sensing probe to sense the electromagnetic sensor 7 .

[0030] Figure 1As shown, the tail end of the electromagnetic induction block 6 is connected to the tail end rotation shaft of the second push rod 10, and the head end of the electromagnetic induction block 6 is fixedly connected to the drive shaft 12. The tail end of the electromagnetic induction block 6 is connected to the tail end rotation shaft of the second push rod 10, and the head end of the electromagnetic induction block 6 is fixedly connected to the drive shaft 12, so that the connection between the electromagnetic induction block 6 and the second push rod 10 is more compact.

[0031] Figure 1 As shown, a shaft sleeve 14 is provided on the fixing frame 13, and the first push rod 9 passes through the shaft sleeve 14. The shaft sleeve 14 can support the first push rod 9.

[0032] Figure 1 As shown, one end of the second station 2 is connected to the push rod assembly 5, and the other end of the second station 2 is connected to a guide rod 15, and the guide rod 15 can slide on the slide rail 16. Driven by the push rod assembly 5, the second station 2 also moves on the guide rod 15, which improves the stability of the second station 2 during movement.

[0033] Figure 1 As shown, the first station 1 is provided with a plurality of proximity switches 3 to be tested, and the second station 2 is provided with a plurality of magnets 4 corresponding to the proximity switches 3 to be tested. Multiple proximity switches 3 are tested simultaneously, thereby improving the working efficiency of the test.

[0034] The proximity switch 3 to be tested is connected to an LED lamp (not shown in the figure). Since the proximity switch 3 is constantly turned on and off, the LED lamp connected to the proximity switch 3 also realizes that the LED lamp is constantly turned on and off, and the reliability of the LED lamp life can be verified at this time, further improving the efficiency of the detection.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0036] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool for detecting the service life of a proximity switch, characterized by: It comprises a first station and a second station, the second station is fixedly arranged and a proximity switch to be detected is fixed thereon, the first station is fixed with a magnet and connected with a push rod assembly, the push rod assembly pushes the second station away from or close to the first station, the push rod assembly is provided with an electromagnetic induction block, the side of the push rod assembly is provided with an electromagnetic sensor, and the electromagnetic sensor is connected with a magnetic induction digital display counter; When the push rod assembly pushes the first workstation to approach the second workstation, the proximity switch is turned on and the electromagnetic induction block is close to the electromagnetic sensor, and the magnetic induction digital counter records the number of switch closures; when the push rod assembly pulls the first workstation away from the second workstation, the proximity switch is turned off and the electromagnetic induction block is away from the electromagnetic sensor, and the magnetic induction digital counter does not record the number of switch closures.

2. The proximity switch service life detection tool according to claim 1 is characterized in that: The push rod assembly includes a first push rod and a second push rod, the head end of the first push rod is connected to the first workstation, the tail end of the first push rod is connected to the head end shaft of the second push rod, the tail end shaft of the second push rod is connected to one end of the electromagnetic induction block, and the other end of the electromagnetic induction block is fixed on the driving shaft of the motor. The driving shaft rotates the electromagnetic induction block to drive the second push rod, and the second push rod drives the first push rod, which drives the first workstation to move closer to or away from the second workstation.

3. The tooling for detecting the service life of a proximity switch according to claim 2 is characterized in that: A fixing frame is provided on the side of the push rod assembly, the electromagnetic sensor is fixed on the fixing frame, and the induction probe of the electromagnetic sensor points to the second push rod.

4. The proximity switch service life detection tool according to claim 2 is characterized in that: The tail end of the electromagnetic induction block is connected to the tail end rotating shaft of the second push rod, and the head end of the electromagnetic induction block is fixedly connected to the driving shaft.

5. The tooling for detecting the service life of a proximity switch according to claim 3 is characterized in that: The fixing frame is provided with a shaft sleeve, and the first push rod passes through the shaft sleeve.

6. The tooling for detecting the service life of a proximity switch according to claim 1 is characterized in that: One end of the second station is connected to the push rod assembly, and the other end of the second station is connected to a guide rod, and the guide rod can slide on the slide rail.

7. The tooling for detecting the service life of a proximity switch according to claim 1 is characterized in that: The first station is provided with a plurality of proximity switches to be tested, and the second station is provided with a plurality of magnets corresponding to the proximity switches to be tested.

8. The tooling for detecting the service life of a proximity switch according to claim 7 is characterized in that: The proximity switch to be tested is connected with an LED lamp.

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