Locking tooth type level switch capable of adjusting rotation direction

Abstract

The utility model relates to the technical field of level switches, in particular to a locking tooth type level switch with an adjustable rotation direction, which comprises a shell, a bidirectional rotation mechanism is arranged in the top of the shell and comprises a micro motor fixedly connected to the top wall of the shell, and the micro motor is not overlapped with the circle center of the top wall of the shell. The output end of the micro motor is fixedly connected with an output gear, the outer side wall of the output gear is meshed with a high gear, the inner side wall of the high gear is fixedly connected with a rotating shaft, the outer side wall of the rotating shaft is slidably connected with a sliding sleeve, the sliding sleeve is fixedly connected to the top of the shell, and the outer side wall of the rotating shaft is fixedly connected with a connecting block. The shell is matched with the two-way rotating mechanism, the limiting block, the sliding seat and the clamping groove are matched to achieve height switching of the rotating shaft, rotation in different directions is achieved through the positions of the high gear and the inner gear ring, and then the rotating shaft is used for driving the blades to achieve adjustment of the rotating direction.

Description

Technical Field

[0001] This utility model relates to the field of level switch technology, specifically to an adjustable rotary locking tooth level switch. Background Technology

[0002] A locking-tooth level switch (also known as a rotary paddle level switch or a rotary vane level switch) is a mechanical contact level detection device, mainly used for monitoring the level of solid materials (such as powders, granules, and lumps). Its core principle is to determine whether the material has reached the set position by observing the change in resistance of the rotating vane.

[0003] The micro motor of a rotary paddle switch is generally unidirectional (such as clockwise). The signal is triggered when the blade is blocked by material, and the direction is fixed. However, when facing multi-pipe feeding, the rotation direction of the blade needs to be adjusted to adapt to the installation position (such as feeding from the left or right). If a bidirectional micro motor is installed, it will increase production costs and be detrimental to market competitiveness.

[0004] Therefore, it is necessary to invent a locking tooth level switch with adjustable rotation direction to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable rotary locking tooth level switch, which solves the problem in the prior art where the blade rotation direction needs to be adjusted to adapt to the installation position when multiple pipelines are fed. This is achieved through the cooperation of the housing and the bidirectional rotating mechanism.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable rotation direction locking tooth level switch, comprising a housing, wherein a bidirectional rotation mechanism is provided inside the top of the housing, the bidirectional rotation mechanism includes a micro motor fixedly connected to the top wall of the housing, the micro motor and the center of the top wall of the housing not overlapping, an output gear fixedly connected to the output end of the micro motor, a high gear meshing with the outer side wall of the output gear, a rotating shaft fixedly connected to the inner side wall of the high gear, a sliding sleeve slidably connected to the outer side wall of the rotating shaft and fixedly connected to the top of the housing, a connecting block fixedly connected to the outer side wall of the rotating shaft, a dustproof plate fixedly connected to the top of the connecting block, and an internal gear ring fixedly connected to the inner side wall of the dustproof plate. The rotation direction of the rotating shaft can be selected by adjusting the height of the high gear and the internal gear ring by sliding the rotating shaft.

[0007] Preferably, the dustproof plate is located below the high gear, and the dustproof plate slides inside the housing. The spatial distribution of the dustproof plate and the high gear avoids mutual interference in movement.

[0008] Preferably, a control module is provided on the outer wall of the rotating shaft and the control module is installed inside the housing. The control module contains a clutch, a micro switch and a circuit board. A blade is fixedly connected to the outer bottom end of the rotating shaft. When the rotation of the blade is obstructed by the control module, the internal clutch is triggered to disengage and the micro switch is triggered, and a switch signal is output.

[0009] Preferably, an adjusting seat is rotatably connected to the top of the rotating shaft. The outer side wall of the adjusting seat has two sets of slots. The adjusting seat is located on the surface of the outer shell. The gear position is determined by the cooperation between the slots and the adjusting seat, and the rotating shaft is driven to make adjustments.

[0010] Preferably, a sliding seat is fixedly connected to the top of the outer shell, a limiting block is slidably connected inside the sliding seat, and a limiting spring is sleeved on the outer wall of the limiting block. The slot and the rotating shaft are limited by the cooperation of the limiting block, the sliding seat and the limiting spring.

[0011] Preferably, an infrared transmitter is fixedly connected to the top of the outer shell, and a dust cover is inserted into the top of the infrared transmitter. The infrared transmitter emits infrared rays, and the dust cover protects the infrared transmitter from dust.

[0012] Preferably, a supporting wall is provided on the side of the outer casing away from the dust cover, and a reflector is fixedly connected to the surface of the supporting wall. A cleaning fan is provided above the reflector and is fixedly connected to the surface of the supporting wall. Infrared light is reflected by the reflector to determine the vibration amplitude of the outer casing, thereby determining the wear degree of the output gear, the high gear and the internal gear ring.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. By cooperating with the outer shell and the bidirectional rotating mechanism, and by cooperating with the limit block, the sliding seat and the slot, the height of the rotating shaft is switched. The movement of the adjusting seat makes the output gear mesh with the high gear or the internal gear ring, and the position of the high gear and the internal gear ring is used to achieve rotation in different directions. Then, the rotating shaft drives the blade to adjust the direction of rotation.

[0015] 2. Through the cooperation of parts such as infrared emitters and dust covers, infrared rays are projected onto the surface of the reflector by the infrared emitter. The reflector then records the vibration amplitude of the outer shell by reflecting infrared light spots. During this process, the surface of the reflector is cleaned by supporting walls to reduce the influence of dust on the infrared rays. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the outer shell structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the adjusting seat structure of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the supporting wall structure of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Outer shell; 2. Bidirectional rotation mechanism; 201. Micro motor; 202. Output gear; 203. High gear; 204. Rotating shaft; 205. Sliding sleeve; 206. Connecting block; 207. Dustproof plate; 208. Internal gear ring; 209. Slot; 210. Adjusting seat; 3. Limiting block; 4. Sliding seat; 5. Limiting spring; 6. Control module; 7. Blade; 8. Support wall; 9. Reflector; 10. Cleaning fan; 11. Infrared emitter; 12. Dust cover. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5The adjustable rotation direction locking tooth level switch shown includes a housing 1. A bidirectional rotation mechanism 2 is disposed inside the top of the housing 1. The bidirectional rotation mechanism 2 includes a micro motor 201 fixedly connected to the top wall of the housing 1. The center of the micro motor 201 does not overlap with the center of the top wall of the housing 1. An output gear 202 is fixedly connected to the output end of the micro motor 201. A high gear 203 meshes with the outer wall of the output gear 202. A rotating shaft 204 is fixedly connected to the inner wall of the high gear 203. A sliding sleeve 205 is slidably connected to the outer wall of the rotating shaft 204. Furthermore, the sliding sleeve 205 is fixedly connected to the top of the outer casing 1, and a connecting block 206 is fixedly connected to the outer wall of the rotating shaft 204. A dustproof plate 207 is fixedly connected to the top of the connecting block 206, and an internal gear ring 208 is fixedly connected to the inner wall of the dustproof plate 207. By sliding the rotating shaft 204, the height of the high gear 203 and the internal gear ring 208 can be adjusted, thereby selecting the rotation direction of the rotating shaft 204. The dustproof plate 207 is located below the high gear 203 and slides inside the outer casing 1. The space between the dustproof plate 207 and the high gear 203... To avoid mutual interference in movement, a control module 6 is installed on the outer wall of the rotating shaft 204 and is mounted inside the housing 1. The control module 6 contains a clutch, a microswitch, and a circuit board. A blade 7 is fixedly connected to the outer bottom end of the rotating shaft 204. When the rotation of the blade 7 is obstructed by the control module 6, the internal clutch is triggered to disengage and the microswitch is activated, outputting a switch signal. An adjusting seat 210 is rotatably connected to the top end of the rotating shaft 204. Two sets of slots 209 are provided on the outer wall of the adjusting seat 210, which is located within the housing 1. The surface of the device determines the gear position through the cooperation of the slot 209 and the adjusting seat 210, and drives the rotating shaft 204 to make adjustments. Through the cooperation of the outer shell 1 and the bidirectional rotating mechanism 2, the height switching of the rotating shaft 204 is achieved through the cooperation of the limiting block 3, the sliding seat 4 and the slot 209. Thus, the movement of the adjusting seat 210 makes the output gear 202 mesh with the high gear 203 or the internal gear ring 208, and the position of the high gear 203 and the internal gear ring 208 is used to achieve rotation in different directions. Then, the rotating shaft 204 drives the blade 7 to achieve the adjustment of the rotation direction.

[0026] Refer to the instruction manual appendix Figure 1-5An infrared emitter 11 is fixedly connected to the top of the outer casing 1, and a dust cover 12 is inserted into the top of the infrared emitter 11. The infrared emitter 11 emits infrared rays and the dust cover 12 protects the infrared emitter 11 from dust. A support wall 8 is provided on the side of the outer casing 1 away from the dust cover 12. A reflector 9 is fixedly connected to the surface of the support wall 8. A cleaning fan 10 is provided above the reflector 9 and is fixedly connected to the surface of the support wall 8. The infrared rays are reflected by the reflector 9 to determine the vibration amplitude of the outer casing 1, thereby determining the wear degree of the output gear 202, the high gear 203 and the internal gear ring 208. Through the cooperation of the infrared emitter 11, the dust cover 12 and other parts, the infrared emitter 11 projects infrared rays onto the surface of the reflector 9, thereby recording the vibration amplitude of the outer casing 1 by reflecting infrared light spots through the reflector 9. In this process, the surface of the reflector 9 is cleaned by the support wall 8 to reduce the influence of dust on the infrared rays.

[0027] The working principle of this practical application is as follows:

[0028] Refer to the instruction manual appendix Figure 1-5 When it is necessary to switch the rotation direction of blade 7, the adjusting seat 210 is raised and lowered along the direction of the rotating shaft 204, so that the limiting block 3, driven by the limiting spring 5, limits the required set in the slot 209. Thus, the rotating shaft 204 drives the high gear 203, connecting block 206, dustproof plate 207, and internal gear ring 208 to rise and fall, thereby making the high gear 203 or internal gear ring 208 mesh with the output gear 202. Then, the micro motor 201 is started. Through the spatial distribution of the high gear 203 and internal gear ring 208, the high gear 203 and the output gear 202 rotate in opposite directions or the internal gear ring 208 and the output gear 202 rotate in the same direction, thus realizing simple rotation direction adjustment.

[0029] When the housing 1 is working, the infrared emitter 11 is activated to project infrared rays onto the surface of the reflector 9, thereby recording the vibration amplitude of the housing 1 by reflecting infrared light spots through the reflector 9. During this process, the surface of the reflector 9 is cleaned by the supporting wall 8 to reduce the influence of dust on the infrared rays. When parts such as the output gear 202 wear out, the vibration amplitude of the housing 1 increases, and the amplitude of the light spots projected by the infrared emitter 11 onto the surface of the reflector 9 becomes more intense, making it easier for the user to observe and promptly inspect the housing 1.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable rotary locking tooth level switch, comprising a housing (1), characterized in that: The top of the outer shell (1) is provided with a bidirectional rotation mechanism (2). The bidirectional rotation mechanism (2) includes a micro motor (201) fixedly connected to the top wall of the outer shell (1). The micro motor (201) does not overlap with the center of the top wall of the outer shell (1). The output end of the micro motor (201) is fixedly connected to an output gear (202). The outer side wall of the output gear (202) is meshed with a high gear (203). The inner side wall of the high gear (203) is fixedly connected to a rotating shaft (204). The outer side wall of the rotating shaft (204) is slidably connected to a sliding sleeve (205), and the sliding sleeve (205) is fixedly connected to the top of the outer shell (1). The outer side wall of the rotating shaft (204) is fixedly connected to a connecting block (206). The top end of the connecting block (206) is fixedly connected to a dustproof plate (207). The inner side wall of the dustproof plate (207) is fixedly connected to an internal gear ring (208).

2. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: The dustproof plate (207) is located below the high gear (203) and slides inside the outer casing (1).

3. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: The outer wall of the rotating shaft (204) is provided with a control module (6) and the control module (6) is installed inside the housing (1). The control module (6) is provided with a clutch, a micro switch and a circuit board. The bottom outer side of the rotating shaft (204) is fixedly connected with a blade (7).

4. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: The top of the rotating shaft (204) is rotatably connected to an adjusting seat (210), and the outer side wall of the adjusting seat (210) is provided with two sets of slots (209). The adjusting seat (210) is located on the surface of the outer shell (1).

5. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: The top of the outer shell (1) is fixedly connected to a sliding seat (4), and a limit block (3) is slidably connected inside the sliding seat (4). A limit spring (5) is sleeved on the outer side wall of the limit block (3).

6. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: An infrared emitter (11) is fixedly connected to the top of the outer shell (1), and a dust cover (12) is inserted into the top of the infrared emitter (11).

7. The adjustable rotary locking tooth level switch according to claim 1, characterized in that: A supporting wall (8) is provided on the side of the outer shell (1) away from the dust cover (12). A reflector (9) is fixedly connected to the surface of the supporting wall (8). A cleaning fan (10) is provided above the reflector (9) and the cleaning fan (10) is fixedly connected to the surface of the supporting wall (8).

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