Anti-toppling photoelectric switch

Abstract

The utility model relates to an anti-toppling photoelectric switch, and relates to the technical field of anti-toppling switches, the anti-toppling photoelectric switch comprises a shell, a guide cavity is formed in the shell, the shell is provided with a transmitting tube and a receiving tube which are opposite in position on the two sides of the guide cavity respectively, and the shell is provided with communicating holes communicated with the guide cavity in the positions of the transmitting tube and the receiving tube. A ball is arranged in the guide cavity, the diameter of the ball is larger than the opening diameter of the communicating hole, one side of the guide cavity is arranged in a funnel shape, and one communicating hole is arranged at the closing position of the funnel shape. The anti-toppling photoelectric switch is small in size, and the application range of the switch is widened.

Description

Technical Field

[0001] The present application relates to the field of anti-dumping switches, and in particular to an anti-dumping photoelectric switch. Background Art

[0002] Anti-tip switches are usually used in electrical appliances that pose a safety hazard if they tip over. They provide protection by disconnecting the circuit when the appliance tips over.

[0003] In the related technology, for example, the patent with announcement number CN216161644U discloses an anti-dump switch. The anti-dump switch adopts a micro switch with mature technology. The micro switch is vertically installed in the cover shell. The contact of the micro switch is located in the upper part of the lower cavity. One end of the pressure plate is hinged in the middle of the cover shell, and the other end of the pressure plate is connected to a tray. The tray is arranged in the cavity between the upper and lower chambers. The ball changes with the position of the host. When the ball falls into the cavity of the shell, it will press down the tray, causing the tray to move down and drive the pressure plate to press down the contact of the micro switch along its hinge center to connect the circuit; when the ball leaves the cavity of the shell, the tray is in a free state, and the pressure plate is used to control the on and off of the micro switch and the power supply and circuit.

[0004] With respect to the above-mentioned related technologies, the micro switch needs to be kept closed by the gravity of the ball. In order to ensure the gravity of the ball, the overall volume of the ball and the anti-dump switch is also large, which needs to be improved. Utility Model Content

[0005] In order to miniaturize the volume of the anti-dump switch, the present application provides an anti-dump photoelectric switch.

[0006] The anti-dumping photoelectric switch provided in this application adopts the following technical solution:

[0007] An anti-dumping photoelectric switch comprises a shell, a guide cavity is provided in the shell, a transmitting tube and a receiving tube are arranged on both sides of the guide cavity, the shell is provided with connecting holes connected to the guide cavity at the transmitting tube and the receiving tube, a ball is arranged in the guide cavity, the diameter of the ball is larger than the opening diameter of the connecting hole, one side of the guide cavity is arranged in a funnel shape, and the connecting hole is a funnel-shaped closing part.

[0008] By adopting the above technical solution, when the anti-dumping photoelectric switch is in a normal working state, the ball is located at the bottom of the guide cavity in the vertical direction due to gravity, there is no obstruction between the two connecting holes, the signal between the transmitting tube and the receiving tube is not blocked, and the related electrical appliances work normally. When tipping occurs, the ball rolls to the funnel-shaped closing part of the guide cavity under the guiding action of the guide cavity, thereby blocking the through hole on one side, and then blocking the signal between the transmitting tube and the receiving tube, so as to stop the operation of the related electrical appliances through signal feedback. The use of this structure makes the anti-dumping photoelectric switch miniaturized, thereby increasing its application range.

[0009] Optionally, the shell includes a first shell and a second shell that are detachably connected.

[0010] By adopting the above technical solution, the shell is divided into a first shell and a second shell, so that the guide cavity is formed by combining the first shell and the second shell, which makes it easier to process the guide cavity.

[0011] Optionally, it also includes a shell sleeved on the outside of the shell.

[0012] By adopting the above technical solution, the outer shell is sleeved on the outer sides of the first shell and the second shell, so as to limit and fix the first shell and the second shell.

[0013] Optionally, the transmitting tube and the receiving tube are respectively located in the first shell and the second shell, and the guide cavity is opened on the side wall of the first shell and / or the second shell.

[0014] Optionally, a mounting groove is formed on one side of the first shell and the second shell facing away from each other, and the transmitting tube and the receiving tube are respectively embedded in the corresponding mounting groove.

[0015] By adopting the above technical solution, during installation, the transmitting tube and the receiving tube are installed in the corresponding installation grooves, and then the outer shell is sleeved on the outside of the first shell and the second shell to complete the installation and limiting, which is convenient for assembly and helps to improve assembly efficiency.

[0016] Optionally, the transmitting tube and the receiving tube are arranged in a second shell, the first shell is located above the second shell, and the second shell has two slots on a side facing the first shell, and the transmitting tube and the receiving tube are respectively inserted into the corresponding slots, and first guide grooves are provided on the opposite side walls of the first shell and the second shell, and the two first guide grooves constitute a guide cavity.

[0017] By adopting the above technical solution, during the installation process, the transmitting tube and the receiving tube are inserted into the corresponding slots of the second shell, and then the first shell is covered on the top of the second shell, and finally the outer shell is covered on the outside of the first shell and the second shell to complete the assembly, which is convenient for assembly and helps to improve assembly efficiency.

[0018] Optionally, a second funnel-shaped guide groove is provided on the opposite side walls of the first shell and the second shell, the two second guide grooves constitute a guide cavity, and the two communicating holes are the corresponding funnel-shaped closing parts.

[0019] By adopting the above technical solution and setting two guide grooves, the anti-dumping photoelectric switch can be applied to 180° dumping.

[0020] Optionally, a limiting groove is provided on the side of the outer wall of the shell facing away from the installation direction of the shell, and the limiting groove includes a first limiting groove provided on the first shell and a second limiting groove provided on the second shell, and the first limiting groove and the second limiting groove are connected to each other, and a limiting block is provided on the inner wall of the shell, and the limiting block is located in the limiting groove.

[0021] By adopting the above technical solution, the limiting block and the limiting groove are arranged in coordination, so as to further improve the limiting effect of the housing on the first housing and the second housing, and at the same time, the limiting block is inserted into the limiting groove to fix the housing, thereby improving the structural stability of the anti-dumping photoelectric switch.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the anti-dumping photoelectric switch is in normal working state, the ball is located at the bottom of the guide cavity in the vertical direction due to gravity, there is no obstruction between the two connecting holes, the signal between the transmitting tube and the receiving tube is not blocked, and the related electrical appliances work normally. When dumping occurs, the ball rolls to the funnel-shaped closing part of the guide cavity under the guidance of the guide cavity, thereby blocking the through hole on one side, and then blocking the signal between the transmitting tube and the receiving tube, so as to stop the operation of the related electrical appliances through signal feedback. The use of this structure makes the anti-dumping photoelectric switch miniaturized, thereby increasing its application range.

[0024] 2. The outer shell is sleeved on the outside of the first shell and the second shell, and the first shell and the second shell are limited and fixed by the matching arrangement of the limit block and the limit groove;

[0025] 3. Compared with the traditional anti-dump switch, the structure is relatively simpler, easy to assemble and conducive to improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure after the shell is exploded in Example 1 of the present application.

[0027] Figure 2 It is a cross-sectional view of Example 1 of the present application.

[0028] Figure 3It is a schematic structural diagram of the first shell and the partially cutaway outer shell in Example 1 of the present application.

[0029] Figure 4 It is a cross-sectional view of Example 2 of the present application.

[0030] Figure 5 It is a cross-sectional view of Example 3 of the present application.

[0031] Explanation of the accompanying drawings: 1. outer shell; 2. shell; 21. first shell; 22. second shell; 3. mounting groove; 4. transmitting tube; 5. receiving tube; 6. second guide groove; 7. connecting hole; 8. guide cavity; 9. ball; 10. first limit groove; 11. second limit groove; 12. limit block; 13. first guide groove; 14. slot. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] Example 1

[0034] The present application embodiment discloses an anti-dumping photoelectric switch, referring to Figure 1 , Figure 2 The anti-dumping photoelectric switch comprises a housing 2 and a shell 1 sleeved on the outer side of the housing 2. The housing 2 comprises a first housing 21 and a second housing 22. The side walls of the first housing 21 and the second housing 22 facing away from each other are both provided with mounting grooves 3, and a transmitting tube 4 and a receiving tube 5 are respectively embedded in the two mounting grooves 3.

[0035] Reference Figure 2 , Figure 3 A second guide groove 6 is provided on one side of the first housing 21 facing the second housing 22, and a connecting hole 7 connected to the second guide groove 6 is penetrated at the installation groove 3 between the first housing 21 and the second housing 22. The second guide groove 6 is arranged in a funnel shape, and the connecting hole 7 at the first housing 21 is a funnel-shaped closing part. When the opening of the second guide groove 6 is closed by the second housing 22, a guide cavity 8 is formed, and a ball 9 is placed in the guide cavity 8.

[0036] In other embodiments, the second guide groove 6 may also be provided on the second shell body 22 .

[0037] Reference Figure 2 The signal transmitting and receiving elements of the transmitting tube 4 and the receiving tube 5 are located at the corresponding connecting holes 7 , and when the ball 9 is at the bottom in the height direction of the guide cavity 8 , the height of the ball 9 is lower than the height of the connecting hole 7 .

[0038] Reference Figure 1 , Figure 3The two opposite outer side walls of the housing 2 are provided with limiting grooves, and the limiting grooves are located on the side of the housing 2 away from the installation direction of the shell 1. The limiting grooves include a first limiting groove 10 provided on the first housing 21 and a second limiting groove 11 provided on the second housing 22. After the first housing 21 and the second housing 22 are assembled, the first limiting groove 10 and the second limiting groove 11 are connected to each other.

[0039] The two opposite inner walls of the housing 1 are integrally connected with the limit blocks 12. The housing 1 is made of plastic material and has a certain degree of deformation ability. When the housing 1 is installed, due to the setting of the two limit blocks 12, the housing 1 and the shell 2 are squeezed and stretched apart from each other until the housing 1 is pushed so that the limit blocks 12 are stuck in the limit grooves, and the deformation of the housing 1 is restored, and the assembly is completed at the same time.

[0040] Example 2

[0041] The present application embodiment discloses an anti-dumping photoelectric switch, referring to Figure 4 The difference from Example 1 is that a second funnel-shaped guide groove 6 is provided on the opposite side walls of the first shell 21 and the second shell 22, the two second guide grooves 6 are connected to form a guide cavity 8, and the two connecting holes 7 correspond to the corresponding funnel-shaped closing parts.

[0042] Example 3

[0043] The present application embodiment discloses an anti-dumping photoelectric switch, referring to Figure 5 , which is different from Embodiment 2 in that the first shell 21 and the second shell 22 are arranged in the upper and lower positions in the height direction, and the first shell 21 is located above the second shell 22. First guide grooves 13 are provided on the opposite side walls of the first shell 21 and the second shell 22, and the two first guide grooves 13 are connected to form a guide cavity 8. The second shell 22 is provided with slots 14 on both sides of the opening of the corresponding first guide grooves 13, and the transmitting tube 4 and the receiving tube 5 are respectively inserted into the corresponding slots 14.

[0044] 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 anti-dumping photoelectric switch, comprising a housing (2), characterized in that: A guide cavity (8) is provided in the shell (2), and a transmitting tube (4) and a receiving tube (5) are provided on both sides of the guide cavity (8) in opposite positions. A connecting hole (7) connected to the guide cavity (8) is provided on both the transmitting tube (4) and the receiving tube (5) in the shell (2). A ball (9) is provided in the guide cavity (8), and the diameter of the ball (9) is larger than the opening diameter of the connecting hole (7). One side of the guide cavity (8) is arranged in a funnel shape, and the connecting hole (7) is a closing part of the funnel shape.

2. The anti-dumping photoelectric switch according to claim 1, characterized in that: The housing (2) comprises a first housing (21) and a second housing (22) which are detachably connected.

3. The anti-dumping photoelectric switch according to claim 2, characterized in that: It also includes an outer shell (1) sleeved on the outer side of the shell (2).

4. The anti-dumping photoelectric switch according to claim 3, characterized in that: The transmitting tube (4) and the receiving tube (5) are respectively located in the first shell (21) and the second shell (22), and the guide cavity (8) is opened on the side wall of the first shell (21) and / or the second shell (22).

5. The anti-dumping photoelectric switch according to claim 4, characterized in that: A mounting groove (3) is provided on the side of the first shell (21) and the second shell (22) facing away from each other, and the transmitting tube (4) and the receiving tube (5) are respectively embedded in the corresponding mounting groove (3).

6. The anti-dumping photoelectric switch according to claim 2, characterized in that: The transmitting tube (4) and the receiving tube (5) are arranged in the second shell (22); the first shell (21) is located above the second shell (22); two slots (14) are provided on the side of the second shell (22) facing the first shell (21); the transmitting tube (4) and the receiving tube (5) are respectively inserted into the corresponding slots (14); first guide grooves (13) are provided on the opposite side walls of the first shell (21) and the second shell (22); the two first guide grooves (13) constitute a guide cavity (8).

7. The anti-dumping photoelectric switch according to claim 2, characterized in that: The first shell (21) and the second shell (22) are provided with second guide grooves (6) in a funnel shape on their opposite side walls, the two second guide grooves (6) form a guide cavity (8), and the two communicating holes (7) are the corresponding funnel-shaped closing parts.

8. The anti-dumping photoelectric switch according to claim 3, characterized in that: A limiting groove is provided on the side of the outer wall of the shell (2) facing away from the installation direction of the outer shell (1), the limiting groove comprising a first limiting groove (10) provided on the first shell (21) and a second limiting groove (11) provided on the second shell (22), the first limiting groove (10) and the second limiting groove (11) being connected to each other, and a limiting block (12) is provided on the inner wall of the outer shell (1), the limiting block (12) being located in the limiting groove.

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