Inductive switch device capable of being used in drying oven

Abstract

The utility model relates to an inductive switch device capable of being used in a drying oven, which belongs to the technical field of drying oven equipment and is arranged in the drying oven, a storage rack is arranged in the drying oven, a heating device is arranged in the drying oven, and the inductive switch device capable of being used in the drying oven comprises a connecting rod, a first through hole is formed in one side of the top of the storage rack, the connecting rod slidably penetrates through the first through hole, the bottom of the connecting rod movably penetrates through the bottom of the drying oven through a second through hole in the bottom of the drying oven, and a detection switch for detecting whether the connecting rod enters the induction range or not is arranged at the outer bottom of the drying oven close to the second through hole; and the detection switch is electrically connected with the heating device. The high-temperature drying oven can normally work in the high-temperature drying oven, and parts located in the drying oven are not prone to being damaged in the high-temperature environment.

Description

Technical Field

[0001] The present application relates to the technical field of oven equipment, and in particular to an induction switch device that can be used in an oven. Background Art

[0002] General ovens are formed by welding steel sections and thin plates. They have reasonable structures, beautiful box shapes, and are sturdy and durable. They use electric heating wire interlayers to heat objects.

[0003] At present, when the existing oven is drying objects inside, in order to make the process of loading, drying and taking out objects fully automated, an electronic sensor switch is usually set inside the oven. The electronic sensor switch senses whether there is an object in the oven. If so, it sends a signal to the control device set in the oven to operate the oven door to close, and then the object is dried.

[0004] However, the above-mentioned related technologies have the following problems: the internal parts of the electronic induction switch in the oven may be damaged in the high temperature environment when the oven is working, the control device cannot receive the signal, and the oven cannot operate normally. Utility Model Content

[0005] In order to address the deficiencies in the prior art, the present application provides an induction switch device that can be used in an oven, which can work normally in a high-temperature oven, and the components located in the oven are not easily damaged in a high-temperature environment.

[0006] The present application provides an induction switch device that can be used in an oven and adopts the following technical solution:

[0007] An induction switch device that can be used in an oven is arranged in the oven, wherein a storage shelf is arranged in the oven, and a heating device is arranged inside the oven. The induction switch device that can be used in the oven comprises a connecting rod, wherein a first through hole is opened on one side of the top of the storage shelf, the connecting rod slides through the first through hole, and the bottom of the connecting rod movably passes through the bottom of the oven through a second through hole at the bottom of the oven, and a detection switch is arranged near the second through hole at the bottom outside the oven to detect whether the connecting rod enters the sensing range, and the detection switch is electrically connected to the heating device.

[0008] By adopting the above technical solution, when an object is placed on the top of the storage shelf, the object presses the connecting rod protruding from the top of the storage shelf, and the connecting rod can move normally in the high-temperature oven. The connecting rod slides toward the bottom of the oven and penetrates into the bottom of the second perforation of the oven, and enters the detection range of the detection switch at the bottom of the oven. Only a purely mechanical trigger detection switch is used to drive the heating device in the oven, and components are not easily damaged by high temperature.

[0009] The present application further arranges: the detection switch includes an infrared transmitter, an infrared receiver and a controller, the infrared receiver is electrically connected to the controller, the controller is electrically connected to the heating device, the controller is fixedly connected to the bottom of the oven, the infrared transmitter and the infrared receiver are fixedly connected to the side of the controller facing the bottom of the connecting rod, and the transmitting end of the infrared transmitter and the receiving end of the infrared receiver are directed toward the bottom of the connecting rod.

[0010] By adopting the above technical solution, due to the fast propagation speed of light, the infrared light emitted by the infrared transmitter is reflected by the bottom of the connecting rod and quickly reflected to the infrared receiver. After receiving the infrared light signal, the infrared receiver sends a start signal to the heating device through the controller, and the heating device starts in response in time.

[0011] The present application further provides that: a guide column is provided in the oven, the extension direction of the guide column is consistent with the extension direction of the connecting rod, a plug-in is provided on the top of the connecting rod, and the plug-in is slidably inserted into the outer surface of the guide column.

[0012] By adopting the above technical solution, the guide column can make the connecting rod move vertically between the first through hole and the second through hole of the oven, thereby reducing the situation in which the connecting rod is offset and the movement is blocked when sliding and interlacing.

[0013] The present application further provides that: a box body is provided inside the bottom wall of the oven, a shaft sleeve is fixedly connected to the top of the box body, and the connecting rod is slidably inserted into the shaft sleeve.

[0014] By adopting the above technical solution, there is a gap between the inner wall of the sleeve and the connecting rod. When the connecting rod is offset, it can abut against the inner wall of the sleeve, thereby minimizing damage to the first perforation and the second perforation due to the offset of the connecting rod. At the same time, the sleeve can further guide the connecting rod to slide and penetrate vertically.

[0015] The present application further provides that: a blocking plate is arranged inside the box body, the blocking plate is perpendicular to the extension direction of the connecting rod, and a limiting plate is arranged at the bottom of the blocking plate of the connecting rod.

[0016] By adopting the above technical solution, the limit plate can prevent the connecting rod from falling out of the bottom of the oven, and when the limit plate can no longer move toward the bottom of the oven, the bottom of the connecting rod can reach the detection range of the detection switch, triggering the detection switch to control the heating device.

[0017] The present application further arranges: the connecting rod is located at the bottom of the limiting plate and is sleeved with a first spring, one end of the first spring is fixedly connected to the bottom of the limiting plate, and the other end of the first spring is fixedly connected to the bottom of the box body.

[0018] By adopting the above technical solution, the limit plate is driven by the connecting rod to move toward the bottom of the box, the first spring is compressed, and when the connecting rod is no longer subjected to the gravity of the storage shelf, the first spring recovers and quickly moves the bottom of the connecting rod out of the detection range of the detection switch.

[0019] The present application further provides that: a limiting frame is provided at the bottom of the box body at the bottom of the limiting plate.

[0020] By adopting the above technical solution, the limit plate moves toward the bottom of the box body and abuts against the top of the limit frame. When the bottom of the connecting rod moves out of the detection range of the detection switch, the first spring will not be compressed to the limit, thereby extending the service life of the first spring.

[0021] The present application further provides that: a sensing sheet is provided at the bottom of the connecting rod, and one side of the sensing sheet faces the infrared transmitter and the infrared receiver.

[0022] By adopting the above technical solution, the sensor sheet can increase the contact area between the bottom of the connecting rod and the infrared light emitted by the infrared transmitter, and at the same time, it can more easily reflect the infrared light into the infrared receiver when reflecting the infrared light, thereby improving the sensitivity of the infrared receiver in receiving infrared light.

[0023] The present application further arranges: a support sleeve is provided between the bottom of the box body and the top of the second perforation of the oven, the connecting rod slides and is inserted into the support sleeve, a second spring is provided on the top of the sensor sheet, the second spring is sleeved on the connecting rod between the support sleeve and the sensor sheet, and the second spring is fixedly connected to the bottom of the support sleeve at one end away from the top of the sensor sheet.

[0024] By adopting the above technical solution, when the bottom of the connecting rod leaves the detection range, due to the rapid recovery of the first spring, the second spring can rebound to the first spring, making it difficult for the top of the sensor plate to hit the bottom of the oven, thereby reducing damage to the sensor plate, and being able to buffer the impact force on the connecting rod when the first spring recovers. When the connecting rod is offset, it can reduce the damage caused by the impact of the connecting rod.

[0025] The present application further arranges: a door panel is rotatably connected to one side of the oven, a reflective sheet is arranged on the top of the door panel, an infrared device is arranged on one end of the top of the oven opposite to the reflective sheet, the transmitting end and the receiving end of the infrared device are facing one side of the top of the door panel, the infrared device is electrically connected to an opening device, the opening device is electrically connected to the heating device, and the opening device is fixedly connected to the top outside the oven.

[0026] By adopting the above technical solution, when the receiving end of the infrared device receives the infrared light emitted from the transmitting end and reflected by the reflective sheet, the opening device sends an opening signal to make the detection switch start the heating device, so that when the door panel is closed to close the oven, the detection switch is started in time to start working.

[0027] In summary, this application has the following beneficial effects:

[0028] In the present application, when objects are placed on the top of the storage shelf, the objects press onto the connecting rod protruding from the top of the storage shelf, so that the connecting rod can slide toward the bottom of the oven and penetrate into the bottom of the second through-hole of the oven. The bottom of the connecting rod reaches within the detection range of the detection switch at the bottom of the oven. Only high-temperature resistant connecting rods are used in the oven, and the detection switch is mechanically triggered to drive the heating device. Therefore, components are not easily damaged in a high-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the connection structure of the present application set in the oven.

[0030] Figure 2 It is a schematic diagram of the overall structure of this application.

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the present application located in the oven.

[0032] Figure 4 It is a schematic cross-sectional view of the connecting rod, the box body and the detection switch in this application.

[0033] Figure 5 It is a structural schematic diagram of the detection switch in this application.

[0034] Figure 6 It is a schematic diagram of the top view of the structure of the present application connected to the oven.

[0035] Figure numerals: 1. oven; 11. storage shelf; 12. heating device; 13. first perforation; 14. second perforation; 15. door panel; 2. connecting rod; 21. insertion plug; 22. limit plate; 23. first spring; 24. sensor sheet; 25. second spring; 3. detection switch; 31. infrared transmitter; 32. infrared receiver; 33. controller; 4. guide column; 5. box body; 51. blocking plate; 52. limit frame; 6. bushing; 7. support sleeve; 8. reflective sheet; 9. infrared device; 10. opening device. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 6 This application is described in further detail.

[0037] refer to Figures 1 to 3In this embodiment, an induction switch device that can be used in an oven is arranged in an oven 1. A storage shelf 11 is arranged in the oven 1. A heating device 12 is arranged inside the oven 1. The induction switch device that can be used in the oven includes a connecting rod 2. A first through hole 13 is opened on one side of the top of the storage shelf 11. The connecting rod 2 slides through the first through hole 13. The bottom of the connecting rod 2 passes through the bottom of the oven 1 through a second through hole 14 at the bottom of the oven 1. The object is pressed to the top of the connecting rod 2 protruding from the top of the storage shelf 11 by gravity. In this embodiment, the connecting rod 2 is a cylinder made of aluminum alloy, which is resistant to high temperature and is lightweight and high-strength. The connecting rod 2 is placed between the first through hole 13 and the second through hole 14 at the bottom of the oven 1. The oven 1 slides vertically between the two through holes 14. A detection switch 3 is provided at the outer bottom of the oven 1 near the second through hole 14. The detection switch 3 is used to detect whether the connecting rod 2 enters the sensing range. The detection switch 3 is electrically connected to the heating device 12. When the bottom of the connecting rod 2 enters the sensing range of the detection switch 3, the detection switch 3 triggers the heating device 12 for heating. The connecting rod 2 can move normally in the high-temperature oven 1. After the bottom of the connecting rod 2 enters the sensing range of the detection switch 3 at the bottom of the oven 1, the heating device 12 starts to operate. In the oven 1, only the connecting rod 2 is used to mechanically trigger the detection switch 3 to drive the heating device 12. The components in the oven 1 are not easily damaged by high temperature.

[0038] refer to Figure 1 , Figure 4 and Figure 5 The detection switch 3 includes an infrared transmitter 31, an infrared receiver 32 and a controller 33. The infrared receiver 32 is electrically connected to the controller 33, and the controller 33 is electrically connected to the heating device 12. The controller 33 is fixedly connected to the bottom of the oven 1. The infrared transmitter 31 and the infrared receiver 32 are fixedly connected to the side of the controller 33 facing the bottom of the connecting rod 2. The transmitting end of the infrared transmitter 31 and the receiving end of the infrared receiver 32 are directed toward the bottom of the connecting rod 2. By utilizing the fast propagation speed of infrared light, after the infrared light emitted by the infrared transmitter 31 toward the bottom of the connecting rod 2 is reflected by the bottom of the connecting rod 2, the infrared light quickly reaches the infrared receiver 32. After receiving the infrared light signal, the infrared receiver 32 sends a start signal to the heating device 12 through the controller 33 to quickly start the heating device 12.

[0039] refer to Figure 1 , Figure 3 and Figure 4 In this embodiment, a guide column 4 is fixedly connected inside the oven 1, and the extension direction of the guide column 4 is consistent with the extension direction of the connecting rod 2. A plug-in unit 21 is fixedly connected to the top of the connecting rod 2, and the plug-in unit 21 is slidably inserted into the outer surface of the guide column 4. The guide column 4 can enable the connecting rod 2 to maintain vertical movement between the first through hole 13 and the second through hole 14 of the oven 1 as much as possible, and try to avoid the displacement of the connecting rod 2 when vertically sliding and inserting between the first through hole 13 and the second through hole 14, thereby reducing the possibility of obstruction of the movement of the connecting rod 2.

[0040] Furthermore, a box body 5 is fixedly connected to the bottom wall of the oven 1, a sleeve 6 is fixedly connected to the top of the box body 5, the connecting rod 2 slides and penetrates inside the sleeve 6, and there is a gap between the inner wall of the sleeve 6 and the connecting rod 2. When the connecting rod 2 slides and penetrates the sleeve 6, the contact between the connecting rod 2 and the sleeve 6 is reduced, the connecting rod 2 can slide more smoothly in the sleeve 6, and when the connecting rod 2 is offset, the outer surface of the connecting rod 2 can abut against the inner wall of the sleeve 6, reducing the possibility of the connecting rod 2 abutting against the thin walls of the first perforation 13 and the second perforation 14 and being damaged. At the same time, the sleeve 6 can further enable the connecting rod 2 to slide and penetrate in the vertical direction.

[0041] Furthermore, a blocking plate 51 is fixedly connected to the inside of the box body 5, and the blocking plate 51 is perpendicular to the extension direction of the connecting rod 2. The connecting rod 2 is located at the bottom of the blocking plate 51 and is fixedly connected to a limiting plate 22. The limiting plate 22 prevents the connecting rod 2 from falling out of the bottom of the oven 1 easily, and when the limiting plate 22 is restricted in the box body 5 and can no longer move vertically toward the bottom of the box body 5, the bottom of the connecting rod 2 reaches the detection range of the detection switch 3, thereby triggering the detection switch 3 to control the heating device 12 to heat the oven 1.

[0042] In addition, the connecting rod 2 is located at the bottom of the limit plate 22 and is sleeved with a first spring 23, one end of the first spring 23 is fixedly connected to the bottom of the limit plate 22, and the other end of the first spring 23 is fixedly connected to the bottom of the box body 5. When the top of the connecting rod 2 is not pressed down by a heavy object, the first spring 23 is in a naturally relaxed state. When the limit plate 22 is driven by the connecting rod 2 to move toward the bottom of the box body 5, the first spring 23 at the bottom of the limit plate 22 is compressed. When the connecting rod 2 is no longer affected by the gravity of the storage shelf 11, the first spring 23 returns to its natural state, moving the bottom of the connecting rod 2 out of the detection range of the detection switch 3.

[0043] Furthermore, the bottom of the box body 5 is located at the bottom of the limit plate 22 and is fixedly connected to the limit frame 52. When the limit plate 22 moves vertically toward the bottom of the box body 5, the bottom abuts against the top of the limit frame 52, so that when the bottom of the connecting rod 2 moves out of the detection range of the detection switch 3, the first spring 23 will not be compressed to the limit, thereby extending the service life of the first spring 23 and preventing the elasticity of the first spring 23 from gradually decreasing due to multiple compressions and recovery.

[0044] Furthermore, a sensing sheet 24 is fixedly connected to the bottom of the connecting rod 2, and one side of the sensing sheet 24 faces the infrared transmitter 31 and the infrared receiver 32 and is larger than the area of ​​the connecting rod 2 facing the infrared transmitter 31 and the infrared receiver 32. Therefore, the sensing sheet 24 increases the contact area between the bottom of the connecting rod 2 and the infrared light emitted by the infrared transmitter 31, so that the infrared light can be more easily reflected into the infrared receiver 32 during reflection.

[0045] In addition, a support sleeve 7 is fixedly connected between the bottom of the box body 5 and the top of the second through hole 14 of the oven 1, the connecting rod 2 slides and is inserted into the supporting sleeve 7, and a second spring 25 is fixedly connected to the top of the sensing sheet 24. The second spring 25 is sleeved on the connecting rod 2 and is located between the supporting sleeve 7 and the sensing sheet 24. The second spring 25 is fixedly connected to the bottom of the supporting sleeve 7 at one end away from the top of the sensing sheet 24. When the heating is completed, the first spring 23 recovers quickly, so that the bottom of the connecting rod 2 leaves the detection range of the detection switch 3. The second spring 25 can avoid the collision between the top of the sensing sheet 24 and the bottom of the oven 1 to cause damage when the first spring 23 rebounds, and can buffer the impact force of the first spring 23 on the connecting rod 2 when it recovers, and can reduce the damage caused by the impact of the connecting rod 2 due to the impact force when the connecting rod 2 is offset.

[0046] refer to Figure 6 In this embodiment, a door panel 15 is rotatably connected to one side of the oven 1, a reflective sheet 8 is fixedly connected to the top of the door panel 15, an infrared device 9 is fixedly connected to one end of the top of the oven 1 relative to the reflective sheet 8, a transmitting end and a receiving end of the infrared device 9 are oriented toward one side of the top of the door panel 15, the infrared device 9 is electrically connected to an opening device 10, the opening device 10 is electrically connected to the heating device 12, the opening device 10 is fixedly connected to the top of the oven 1, the receiving end of the infrared device 9 receives the infrared light emitted from the transmitting end and reflected by the reflective sheet 8, when the door panel 15 is closed to close the oven 1, the opening device 10 receives the signal from the receiving end, and the controller 33 in the detection switch 3 responds to the reflected infrared light, thereby starting the heating device 12.

[0047] The implementation principle of the embodiment of the present application is: put the object into the oven 1, the bottom end of the object abuts against the connecting rod 2, the connecting rod 2 moves vertically toward the bottom of the oven 1, and the bottom of the connecting rod 2 enters the infrared light detection range of the infrared transmitter 31. After the infrared receiver 32 receives the infrared light reflected by the sensor sheet 24, the controller 33 sends a start signal to the heating device 12. The heating device 12 waits for the door panel 15 to be closed. After the reflective sheet 8 on the top of the door panel 15 enters the infrared light detection range of the transmitting end of the infrared device 9, the reflected infrared light is received by the receiving end, causing the opening device 10 to send an opening signal. After receiving the opening signal, the waiting heating device 12 starts to heat the object in the oven 1.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An induction switch device that can be used in an oven, characterized in that: An induction switch device is provided in an oven (1), wherein a storage shelf (11) is provided in the oven (1), and a heating device (12) is provided inside the oven (1). The induction switch device can be used in the oven, comprising a connecting rod (2), wherein a first through hole (13) is provided on one side of the top of the storage shelf (11), wherein the connecting rod (2) slides through the first through hole (13), and the bottom of the connecting rod (2) movably penetrates the bottom of the oven (1) through a second through hole (14) at the bottom of the oven (1), and a detection switch (3) is provided at the outer bottom of the oven (1) near the second through hole (14) for detecting whether the connecting rod (2) enters the induction range, and the detection switch (3) is electrically connected to the heating device (12).

2. The induction switch device that can be used in an oven according to claim 1, characterized in that: The detection switch (3) comprises an infrared transmitter (31), an infrared receiver (32) and a controller (33); the infrared receiver (32) is electrically connected to the controller (33); the controller (33) is electrically connected to the heating device (12); the controller (33) is fixedly connected to the bottom of the oven (1); the infrared transmitter (31) and the infrared receiver (32) are fixedly connected to a side of the controller (33) facing the bottom of the connecting rod (2); the transmitting end of the infrared transmitter (31) and the receiving end of the infrared receiver (32) are directed toward the bottom of the connecting rod (2).

3. The induction switch device that can be used in an oven according to claim 1, characterized in that: A guide column (4) is provided in the oven (1), the extension direction of the guide column (4) is consistent with the extension direction of the connecting rod (2), a plug-in component (21) is provided on the top of the connecting rod (2), and the plug-in component (21) is slidably inserted into the outer surface of the guide column (4).

4. The induction switch device that can be used in an oven according to claim 1, characterized in that: A box body (5) is arranged inside the bottom wall of the oven (1), a shaft sleeve (6) is fixedly connected to the top of the box body (5), and the connecting rod (2) is slidably inserted into the shaft sleeve (6).

5. The induction switch device that can be used in an oven according to claim 4, characterized in that: A blocking plate (51) is arranged inside the box body (5), the blocking plate (51) is perpendicular to the extension direction of the connecting rod (2), and a limiting plate (22) is arranged at the bottom of the blocking plate (51) of the connecting rod (2).

6. The induction switch device that can be used in an oven according to claim 5, characterized in that: The connecting rod (2) is located at the bottom of the limiting plate (22) and is sleeved with a first spring (23); one end of the first spring (23) is fixedly connected to the bottom of the limiting plate (22), and the other end of the first spring (23) is fixedly connected to the bottom of the box body (5).

7. The induction switch device that can be used in an oven according to claim 5, characterized in that: A limiting frame (52) is provided at the bottom of the inner bottom of the box body (5) and located at the bottom of the limiting plate (22).

8. The induction switch device that can be used in an oven according to claim 4, characterized in that: A sensing sheet (24) is provided at the bottom of the connecting rod (2), with one side of the sensing sheet (24) facing the infrared transmitter (31) and the infrared receiver (32).

9. The induction switch device that can be used in an oven according to claim 8, characterized in that: A support sleeve (7) is provided between the bottom of the box body (5) and the top of the second through hole (14) of the oven (1); the connecting rod (2) is slidably inserted into the support sleeve (7); a second spring (25) is provided at the top of the sensor sheet (24); the second spring (25) is sleeved on the connecting rod (2) between the support sleeve (7) and the sensor sheet (24); and one end of the second spring (25) away from the top of the sensor sheet (24) is fixedly connected to the bottom of the support sleeve (7).

10. The induction switch device that can be used in an oven according to claim 1, characterized in that: A door panel (15) is rotatably connected to one side of the oven (1), a reflective sheet (8) is arranged on the top of the door panel (15), an infrared device (9) is arranged on one end of the top of the oven (1) opposite to the reflective sheet (8), a transmitting end and a receiving end of the infrared device (9) are oriented toward one side of the top of the door panel (15), the infrared device (9) is electrically connected to an opening device (10), the opening device (10) is electrically connected to the heating device (12), and the opening device (10) is fixedly connected to the top of the oven (1).

Images