CN220367625U

CN220367625U - Switch detection device and sell cabinet

Info

Publication number: CN220367625U
Application number: CN202321979015.8U
Authority: CN
Inventors: 贺亮; 王朝辉
Original assignee: Shenzhen Zhumang Technology Co ltd
Current assignee: Shenzhen Zhumang Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-01-19
Anticipated expiration: 2033-07-25

Abstract

The utility model relates to a switch detection device and a vending cabinet. The vending machine comprises a mounting seat, a rotating shaft and an induction assembly, wherein the mounting seat is fixedly arranged on a cabinet body of the vending cabinet; the rotating shaft is fixedly arranged on the cabinet door and can be rotatably arranged on the mounting seat; the sensing assembly comprises a magnetic part and a Hall sensor, the magnetic part is arranged at one end of the rotating shaft, the Hall sensor is arranged on the mounting seat and is electrically connected with a door lock of the vending cabinet, the Hall sensor is positioned at one side of the magnetic part far away from the rotating shaft, and the rotating axis of the magnetic part is overlapped with the central line of the Hall sensor; the magnetic piece comprises a positive electrode part and a negative electrode part, and the positive electrode part and the negative electrode part are sequentially arranged in the radial direction of the rotating shaft. The rotating shaft drives the magnetic piece to rotate, the Hall sensor detects the direction and the intensity of the magnetic field to obtain detection data, and the detection data can accurately judge the state of the cabinet door. Therefore, the method and the device can prevent the situation that the cabinet door is not completely closed and then the commodity is lost due to false detection, improve the safety and reduce the loss of merchants.

Description

Switch detection device and sell cabinet

Technical Field

The utility model relates to the technical field of vending machines, in particular to a switch detection device and a vending cabinet.

Background

The unmanned vending cabinet is commonly used in places such as markets and supermarkets, the workload of staff is reduced, and a new field is opened up for the market.

Currently, locks of unmanned vending cabinets commonly adopt NFC induction to realize unlocking and locking functions. However, this approach has a problem. For example, when the angle at which the cabinet door is closed is small, NFC induction may erroneously assume that the cabinet door has been completely closed, but in reality the cabinet door is not completely closed. This condition can easily lead to the loss of merchandise, which can be a loss for merchants.

Disclosure of Invention

The embodiment of the utility model aims to solve the technical problem that a switch detection device and a vending cabinet are provided to solve the problem that in the prior art, no one vend the cabinet and the cabinet door sense the false detection, so that the commodity is lost.

In a first aspect, an embodiment of the present utility model provides a switch detection device, including:

the mounting seat is used for being fixedly arranged on the cabinet body of the vending cabinet;

the rotating shaft is fixedly arranged on the cabinet door and can be rotatably arranged on the mounting seat;

the sensing assembly comprises a magnetic part and a Hall sensor, the magnetic part is arranged at one end of the rotating shaft, the Hall sensor is arranged on the mounting seat and is used for being electrically connected with a door lock of the vending cabinet, the Hall sensor is positioned at one side, far away from the rotating shaft, of the magnetic part, and the rotating axis of the magnetic part is coincident with the central line of the Hall sensor;

the magnetic piece comprises a positive electrode part and a negative electrode part, and the positive electrode part and the negative electrode part are sequentially arranged in the radial direction of the rotating shaft.

In some embodiments of the present utility model, the mounting seat is provided with a through hole, the rotating shaft is inserted into the through hole, a first limiting protrusion and a second limiting protrusion are disposed on an outer circumferential surface of the rotating shaft, the first limiting protrusion and the second limiting protrusion are disposed at intervals in an axial direction of the rotating shaft, and the first limiting protrusion and the second limiting protrusion are respectively abutted to two sides of the through hole.

In some embodiments of the present utility model, the mounting base is provided with a limiting boss, and the through hole penetrates through the limiting boss.

In some embodiments of the present utility model, a hollow structure is disposed inside the rotating shaft, an outer circumferential surface of the rotating shaft is provided with a hollow avoidance groove communicated to the hollow structure, a groove wall of the hollow avoidance groove is provided with a connecting arm, and the second limiting protrusion is disposed on the connecting arm.

In some embodiments of the present utility model, the second limiting protrusion includes a first end surface facing away from the first limiting protrusion, and a second end surface adjacent to the first end surface, the second end surface being located on a side of the second limiting protrusion away from the axis of the rotating shaft, and a connection position between the first end surface and the second end surface is provided with a chamfer.

In some embodiments of the present utility model, an end of the rotating shaft facing the hall sensor is provided with a simulated groove, and the magnetic element is installed in the simulated groove.

In some embodiments of the present utility model, the door fixing device further includes a fixing seat, the fixing seat is configured to be fixedly disposed on the door, a mounting groove is disposed on the fixing seat, one end of the rotating shaft, which is far away from the magnetic member, is disposed through the mounting groove, one of a positioning block and a positioning groove is disposed at a bottom of the mounting groove, the other end of the rotating shaft, which is far away from the magnetic member, is disposed at the other end of the rotating shaft, which is located far away from the magnetic member, and the positioning block is accommodated in the positioning groove.

In some embodiments of the present utility model, the mounting seat has a mounting cavity therein, and the hall sensor and the magnetic member are both disposed in the mounting cavity.

In some embodiments of the present utility model, a hollow structure is disposed inside the rotating shaft, a first opening is disposed on one side of the rotating shaft that is accommodated in the installation cavity, a second opening is disposed on one end of the rotating shaft that is far away from the magnetic element, and the first opening and the second opening are both communicated with the hollow structure, so that the first opening, the second opening and the hollow structure together define a routing channel for the wire to pass through.

In a second aspect, an embodiment of the present utility model further provides a vending cabinet, including the switch detection device in the foregoing embodiments.

Compared with the prior art, the switch detection device provided by the embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a switch detection device which comprises a mounting seat, a rotating shaft and an induction component, wherein the mounting seat is fixedly arranged on a cabinet body of a vending cabinet; the rotating shaft is fixedly arranged on the cabinet door and is rotatably arranged on the mounting seat; the sensing assembly comprises a magnetic part and a Hall sensor, the magnetic part is arranged at one end of the rotating shaft, the Hall sensor is arranged on the mounting seat and is used for being electrically connected with a door lock of the vending cabinet, the Hall sensor is positioned at one side, far away from the rotating shaft, of the magnetic part, and the rotating axis of the magnetic part is coincident with the center line of the Hall sensor; specifically, the magnetic part comprises a positive electrode part and a negative electrode part, and the positive electrode part and the negative electrode part are sequentially arranged in the radial direction of the rotating shaft. The rotating shaft rotates to drive the magnetic part to rotate in a matched mode, the direction and the strength of the magnetic field in the rotating process of the magnetic part are changed along with the change of the rotating angle, the Hall sensor detects the specific magnetic field direction and obtains detection data, and the detection data can be used for accurately judging the state of the cabinet door. Compared with the embodiment that the cabinet lockset is sold by no person in the prior art and adopts NFC induction. The switch detection device has higher detection precision, can avoid the condition that the cabinet door is not completely closed to lose goods due to false detection, and improves the safety.

Drawings

The utility model will now be described in further detail with reference to the accompanying drawings and examples, in which:

FIG. 1 is an exploded view of an assembly of a switch detection device according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a portion of a switch detection device according to an embodiment of the present utility model;

fig. 3 is a schematic perspective view of a pair of switch detection devices according to an embodiment of the present utility model;

FIG. 4 is a schematic side view of a pair of switch detection devices according to an embodiment of the present utility model;

FIG. 5 is a schematic view in semi-section along line A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at position B;

FIG. 7 is an enlarged view of a portion of FIG. 5 at position C;

FIG. 8 is a schematic perspective view of a pair of rotary shafts according to an embodiment of the present utility model;

FIG. 9 is a schematic side view of a counter-rotating shaft provided by an embodiment of the present utility model;

FIG. 10 is a schematic view in semi-section along line D-D in FIG. 9;

FIG. 11 is a schematic perspective view of a fixing base according to an embodiment of the present utility model;

FIG. 12 is a schematic diagram of a combination of a magnetic element and a Hall sensor for detecting a longitudinal magnetic field according to an embodiment of the present utility model;

FIG. 13 is a schematic diagram showing a combination of a magnetic member and a Hall sensor for detecting a transverse magnetic field according to an embodiment of the present utility model;

fig. 14 is a schematic perspective view of a vending cabinet according to an embodiment of the present utility model.

The reference numerals in the drawings are as follows:

1000. selling a cabinet;

100. a switch detection device; 200. a cabinet body; 300. a cabinet door; 310. a fixing seat; 311. a mounting groove; 312. a positioning block;

10. a mounting base; 11. a through hole; 12. a limit boss; 13. a mounting cavity; 131. a base; 132. a protective cover; 20. a rotating shaft; 21. the first limiting protrusion; 22. the second limiting bulge; 221. a first end face; 222. a second end face; 223. chamfering; 23. a hollow structure; 24. an empty-avoiding groove; 25. a simulated groove; 26. a connecting arm; 27. a positioning groove; 28. a first opening; 29. a second opening; 30. a routing channel; 40. an induction assembly; 41. a magnetic member; 411. a positive electrode section; 412. a negative electrode portion; 42. a hall sensor; 50. and a PCB board.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.

The embodiment of the present utility model provides a switch detection device 100, as shown in fig. 1 and 14, which includes a mounting base 10, a rotating shaft 20, and an induction component 40. The mounting seat 10 is used for being fixedly arranged on the cabinet body 200 of the vending cabinet 1000; the rotating shaft 20 is fixedly arranged on the cabinet door 300 and rotatably arranged on the mounting seat 10; the induction component 40 comprises a magnetic piece 41 and a Hall sensor 42, the magnetic piece 41 is arranged at one end of the rotating shaft 20, the Hall sensor 42 is arranged on the mounting seat 10 and is used for being electrically connected with a door lock of the vending cabinet 1000, the Hall sensor 42 is positioned at one side, far away from the rotating shaft 20, of the magnetic piece 41, and the rotation axis of the magnetic piece 41 is overlapped with the central line of the Hall sensor 42; specifically, the magnetic member 41 includes a positive electrode portion 411 and a negative electrode portion 412, and the positive electrode portion 411 and the negative electrode portion 412 are sequentially disposed in the radial direction of the rotating shaft 20.

Through the scheme, the rotating shaft 20 is utilized to rotate to drive the magnetic part 41 to rotate in a matched mode, the direction and the strength of the magnetic field in the rotating process of the magnetic part 41 are changed along with the change of the rotating angle, the Hall sensor detects the specific magnetic field direction and obtains detection data, and the state of the cabinet door can be accurately judged according to the detection data. Compared with the embodiment that the lock of the unmanned vending cabinet 1000 in the prior art adopts NFC induction and is easy to misdetect. The switch detection device 100 can accurately detect whether the cabinet door 300 in the unmanned vending cabinet 1000 is closed or not, so that the condition that the cabinet door 300 is not completely closed to lose goods due to false detection is avoided, and the safety is improved.

In the above-mentioned scheme, the hall sensor 42 in the sensing assembly 40 may be the hall sensor 42 for detecting the transverse magnetic field, and may be the hall sensor 42 for detecting the longitudinal magnetic field. Meanwhile, the magnetic member 41 in the sensing assembly 40 may be a permanent magnet or other magnetic element.

The magnetic member 41 and the hall sensor 42 for detecting magnetic fields in different directions can be variously combined, and two embodiments will be described below.

Referring to fig. 12, in an embodiment, the hall sensor 42 for detecting a longitudinal magnetic field is matched with the magnetic element 41, and the positive electrode portion 411 and the negative electrode portion 412 in the magnetic element 41 are arranged in two groups and are layered in the axial direction. Specifically, the direction of the magnetic field returns from the positive electrode portion 411 to the negative electrode portion 412 in the axial direction, and an axial magnetic field is formed. In this way, the axially magnetized magnetic members 41 attenuate the side leakage magnetic field, thereby reducing the adverse effect of the side leakage magnetic field on surrounding equipment.

Referring to fig. 13, in another embodiment, the hall sensor 42 for detecting a transverse magnetic field is matched with the magnetic member 41, the positive electrode portion 411 and the negative electrode portion 412 of the magnetic member 41 are grouped into one group, and the positive electrode portion 411 is disposed on one side of the negative electrode portion 412 in the radial direction of the hall sensor. Specifically, the direction of the magnetic field returns from the positive electrode portion 411 to the negative electrode portion 412 in the radial direction, and a radial magnetic field is formed. Thus, the hall sensor 42 for detecting the transverse magnetic field strength is disposed in the region where the radial magnetic field is uniform, and even if there is an axial eccentricity, the input magnetic field strength does not change much, so that the influence of the axial eccentricity on the angle detection error can be reduced.

Referring to fig. 1 and 8, in an embodiment, the mounting base 10 is provided with a through hole 11, and the rotating shaft 20 is disposed through the through hole 11. So set up, pivot 20 spacing installs in through-hole 11, makes pivot 20 can rotate for through-hole 11 to the pore wall of through-hole 11 can restrict the displacement of pivot 20 in the radial direction. In a specific embodiment, a first limiting protrusion 21 and a second limiting protrusion 22 are disposed on the outer circumferential surface of the rotating shaft 20, the first limiting protrusion 21 and the second limiting protrusion 22 are disposed at intervals in the axial direction of the rotating shaft 20, and the first limiting protrusion 21 and the second limiting protrusion 22 are respectively abutted against two sides of the through hole 11. By this arrangement, the displacement of the shaft 20 in the axial and radial directions is completely restricted, and the stability of the rotation of the shaft 20 is maintained. In a more specific embodiment, two second limiting protrusions 22 are provided, and the two second limiting protrusions 22 are symmetrically provided at both sides of the rotating shaft 20. So arranged, the second limiting protrusion 22 can be more firmly abutted against the through hole 11.

The depth of the through hole 11 is insufficient, the limited part of the rotating shaft 20 sleeved in the through hole 11 is short, and the rotating shaft 20 is easy to swing when rotating. In order to solve this technical problem, referring to fig. 1, 4 and 5, it is preferable that the mounting base 10 is provided with a limiting boss 12, and the through hole 11 penetrates the limiting boss 12. The arrangement ensures that the rotating shaft 20 is limited to be partially increased in the through hole 11, thereby ensuring the rotating reliability of the rotating shaft 20; secondly, the limiting boss 12 is arranged, the depth of the through hole 11 can be deepened without increasing the overall thickness of the mounting seat 10, the overall weight of the mounting seat 10 is smaller, and the convenience of mounting and maintenance is improved.

Referring to fig. 5, 7, 8 and 9, in another embodiment of the present utility model, a hollow structure 23 is provided inside the rotating shaft 20, a hollow groove 24 communicating with the hollow structure 23 is provided on an outer circumferential surface of the rotating shaft 20, a connecting arm 26 is provided on a groove wall of the hollow groove 24, and the second limiting protrusion 22 is provided on the connecting arm 26. Specifically, one end of the connecting arm 26 is connected to the slot wall of the clearance slot 24, the second limiting protrusion 22 is disposed at the other end of the connecting arm 26, and the connecting arm 26 is suspended in the clearance slot 24. Therefore, only the force is applied to the second limiting protrusion 22, the other end of the connecting arm 26 is affected by the force to generate bending deformation, and the second limiting protrusion 22 can deform in a direction away from or close to the center line of the rotating shaft 20. In order to better understand the effect achieved after the second limiting protrusion 22 is deformed, the mounting step of the rotating shaft 20 and the mounting seat 10 is illustrated, one end of the rotating shaft 20, which is far away from the magnetic piece 41, faces the through hole 11, axial force is applied to enable the rotating shaft 20 to be sleeved into the through hole 11, in the sleeving process, the second limiting protrusion 22 is propped against the through hole 11 first, the second limiting protrusion 22 deforms in the direction close to the center line of the rotating shaft 20 under the reaction force until the second limiting protrusion 22 is propped against the wall of the through hole 11 completely, at the moment, the other end of the rotating shaft 20 completely slides into the through hole 11, the rotating shaft 20 is pushed again until the first limiting protrusion 21 is propped against the through hole 11, meanwhile, the second limiting protrusion 22 is separated from the through hole 11, and the axial displacement of the rotating shaft 20 is limited by self elastic force, so that the mounting of the rotating shaft 20 is completed. By the above example, it can be seen that the design makes the assembly of the rotary shaft 20 and the cabinet door 300 more efficient and convenient, and is convenient for installation and maintenance.

Referring to fig. 5, 7 and 10, preferably, in a specific embodiment, the second limiting protrusion 22 includes a first end surface 221 facing away from the first limiting protrusion 21, and a second end surface 222 adjacent to the first end surface 221, where the second end surface 222 is located at a side of the second limiting protrusion 22 away from the axis of the rotating shaft 20, and a chamfer 223 is provided at a connection position between the first end surface 221 and the second end surface 222. Specifically, during the process of the second limiting protrusion 22 beginning to abut against the through hole 11, the chamfer 223 is utilized to slide relative to the hole edge of the through hole 11 under the combined action of the axial force and the reaction force at the hole edge of the through hole 11, so that the rotating shaft 20 slides into the through hole 11. By means of the design, the second limiting protrusion 22 is convenient to deform in the direction close to the center line of the rotating shaft 20, the rotating shaft 20 can be smoothly sleeved in the through hole 11, and reliability of the assembly process is guaranteed.

Referring to fig. 1 and 8, in one embodiment, an end of the rotating shaft 20 facing the hall sensor 42 is provided with a shape-like groove 25, and the magnetic member 41 is installed in the shape-like groove 25. So set up, the profiling groove is convenient for quick location magnetic part, when installing magnetic part 41 in profiling groove 25 like this, the axis of rotation of magnetic part 41 just aligns coincidence with the axis of pivot 20, can reduce the influence of the angle detection error that magnetic part 41 and pivot 20 eccentric cause.

Referring to fig. 1 to 3, in order to facilitate installation and maintenance of the device, in an embodiment, the switch detection device 100 further includes a fixing base 310, where the fixing base 310 is configured to be fixed on the cabinet door 300. Referring to fig. 9 and 11, the fixing base 310 is provided with a mounting groove 311, one end of the rotating shaft 20 away from the magnetic member 41 is penetrated through the mounting groove 311, one of the positioning block 312 and the positioning groove 27 is arranged at the bottom of the mounting groove 311, the other end of the rotating shaft 20 away from the magnetic member 41 is provided with the positioning block 312 or the positioning groove 27, and the positioning block 312 is accommodated in the positioning groove 27. Specifically, the positioning block 312 is aligned with the positioning groove 27, the positioning block 312 is limited in the positioning groove 27, the rotating shaft 20 is convenient for the fixing seat 310 to be clamped and fixed, and the cabinet door 300 is utilized to drive the fixing seat 310, so as to drive the rotating shaft 20 to rotate. When maintenance is required, the positioning block 312 is separated from the positioning groove 27, the rotating shaft 20 is separated from the fixing seat 310, and then the rotating shaft 20 is separated from the cabinet door 300, so that the disassembly is faster. By the design, the assembly of the rotating shaft 20 and the cabinet door 300 is more efficient and convenient, and the installation and the maintenance are convenient.

Referring to fig. 8 and 9, in an embodiment, the space avoiding groove 24 and the positioning groove 27 are directly connected, that is, the space avoiding groove 24 and the positioning groove 27 belong to one groove, and compared with the embodiment in which the space avoiding groove 24 and the positioning groove 27 are spaced apart, the manufacturing time and the production cost of the rotating shaft 20 can be reduced by implementing the embodiment.

Referring to fig. 1 to 5, in an embodiment, the mounting base 10 has a mounting cavity 13 therein, and the hall sensor 42 and the magnetic member 41 are disposed in the mounting cavity 13. Specifically, the switch detecting device 100 further includes a PCB board 50, the PCB board 50 is electrically connected to the hall sensor 42, the hall sensor is located at a side of the PCB board 50 facing the magnetic member 41, and the PCB board 50 is also disposed in the mounting cavity 13. In addition, the mounting base 10 includes a base 131 and a protective cover 132, the protective cover 132 is mounted on one side of the base 131, a protective groove is formed on one side of the protective cover 132 facing the base 131, and a mounting cavity 13 is defined by a groove wall of the protective groove and one side of the base 131. By the design, the PCB 50, the Hall sensor 42, the magnetic piece 41 and the external environment are effectively isolated, so that the PCB 50, the Hall sensor 42 and the magnetic piece 41 are prevented from being damaged by impact force or external environment.

The cabinet door 300 is firmly closed with the cabinet body 200, and a door lock is usually arranged in the cabinet door 300 and is electrically connected with the control end through a wire, for example, electrically connected with the PCB 50, so that the door lock is controlled to be opened or closed through the induction of the control end. In order to avoid exposing the wires and affecting the visual experience of the user, referring to fig. 5 to 8 and fig. 10, in an embodiment, a hollow structure 23 is disposed inside the rotating shaft 20, a first opening 28 is disposed on one side of the rotating shaft 20 accommodated in the mounting cavity 13, a second opening 29 is disposed on one end of the rotating shaft 20 away from the magnetic member 41, and the first opening 28 and the second opening 29 are both communicated with the hollow structure 23, so that the first opening 28, the second opening 29 and the hollow structure 23 together define a routing channel 30 for the wires to pass through. Specifically, one end of the wire is connected to the door lock, and the other end of the wire passes through the second opening 29, passes out of the first opening 28 into the mounting cavity 13 by means of the hollow structure 23, and is then connected to the PCB 50. By such design, on one hand, the wires are all arranged in the wiring channel 30, the outside is not perceived, and the whole appearance is more attractive and tidy. On the other hand, the shaft 20 can provide protection for the wire, reducing the probability of wire damage.

Referring to fig. 14, an embodiment of the present utility model illustrates a merchandiser 1000 that includes the switch detection device 100 of the above-described embodiment.

Specifically, mount pad 10 in switch detection device 100 sets firmly on cabinet body 200, and pivot 20 in the switch detection device 100 sets firmly at cabinet door 300, specifically opens cabinet door 300, and cabinet door 300 rotates along pivot 20 axial, and pivot 20 drives magnetic part 41 and rotates together, and the intensity and the direction of magnetic field change when detecting magnetic part 41 rotation of hall sensor 42 on the mount pad 10 obtain detection data, and detection data can be used for accurately judging the state of cabinet door 300 to avoid appearing losing the condition of commodity because of misdetection leads to cabinet door 300 not fully closed, improved the security.

It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present utility model, and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art; all such modifications and substitutions are intended to be included within the scope of this disclosure as defined in the following claims.

Claims

1. A switch detection device for detect cabinet door open-shut of selling the cabinet, its characterized in that includes:

2. The switch detection device according to claim 1, wherein the mounting seat is provided with a through hole, the rotating shaft is arranged in the through hole in a penetrating manner, a first limiting protrusion and a second limiting protrusion are arranged on the outer circumferential surface of the rotating shaft, the first limiting protrusion and the second limiting protrusion are arranged at intervals in the axial direction of the rotating shaft, and the first limiting protrusion and the second limiting protrusion are respectively abutted to two sides of the through hole.

3. The switch detecting device according to claim 2, wherein the mounting base is provided with a limiting boss, and the through hole penetrates through the limiting boss.

4. The switch detecting device according to claim 2, wherein a hollow structure is provided inside the rotating shaft, an empty-avoiding groove communicated to the hollow structure is provided on an outer peripheral surface of the rotating shaft, a connecting arm is provided on a groove wall of the empty-avoiding groove, and the second limiting protrusion is provided on the connecting arm.

5. The switch detecting device according to claim 4, wherein the second limiting protrusion includes a first end surface facing away from the first limiting protrusion, and a second end surface adjacent to the first end surface, the second end surface being located on a side of the second limiting protrusion away from the axis of the rotating shaft, and a connection position between the first end surface and the second end surface being provided with a chamfer.

6. The switch detecting device according to any one of claims 1 to 5, wherein an end of the rotation shaft facing the hall sensor is provided with a shape-like groove, and the magnetic member is installed in the shape-like groove.

7. The switch detecting device according to any one of claims 1 to 5, further comprising a fixing base, wherein the fixing base is used for being fixedly arranged on the cabinet door, a mounting groove is formed in the fixing base, one end, away from the magnetic piece, of the rotating shaft penetrates through the mounting groove, one of a positioning block and a positioning groove is formed in the bottom of the mounting groove, the other end, away from the magnetic piece, of the rotating shaft is provided with the positioning block and the positioning groove, and the positioning block is accommodated in the positioning groove.

8. The switch detecting device according to any one of claims 1 to 5, wherein the mounting seat has a mounting cavity therein, and the hall sensor and the magnetic member are both disposed in the mounting cavity.

9. The switch detecting device according to claim 8, wherein a hollow structure is disposed inside the rotating shaft, a first opening is disposed on one side of the rotating shaft, which is accommodated in the mounting cavity, a second opening is disposed on one end of the rotating shaft, which is far away from the magnetic member, and the first opening and the second opening are both communicated with the hollow structure, so that the first opening, the second opening and the hollow structure together define a routing channel for the wire to pass through.

10. A merchandiser comprising a switch detection device according to any one of claims 1 to 9.