Automatic reversing device

Abstract

The utility model discloses an automatic reversing device which comprises a first rotary table, a second rotary table, a first reversing valve, a second reversing valve, a second reversing valve and a third reversing valve. The first rotary table is provided with first connecting teeth. The second rotary table is provided with second connecting teeth. The first connecting teeth can be connected with the second connecting teeth in a matched mode so that the rotating directions of the first rotating disc and the second rotating disc can be opposite. The device further comprises a swing rod which can rotate in one direction, a first swing rod capable of synchronously rotating with the first rotary disc is arranged on the first rotary disc, a second swing rod capable of synchronously rotating with the second rotary disc is arranged on the second rotary disc, and the swing rods can be intermittently connected with the first swing rod and the second swing rod in a matched mode. According to the device, the swing rod can rotate in a single direction, so that the positive and negative reversing rotation of the turntables can be realized.

Description

Technical Field

[0001] The utility model relates to an automatic commutation device. Background Art

[0002] Most of the existing electronic automatic commutation mechanisms achieve commutation by driving the forward and reverse rotation of a driving motor or by means of a complex mechanical structure. However, the existing automatic switching products on the market have the following deficiencies: 1. Relying on the forward and reverse switching of the driving motor to realize the function switching back and forth requires high requirements for the driving motor; 2. The mechanism is complex, increasing the instability of the product; 3. In case of manual misoperation, it is easy to damage the driving motor. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an automatic commutation device.

[0004] The utility model is realized by the following technical solutions:

[0005] An automatic commutation device, comprising: a first turntable, on which a first connecting tooth is arranged; a second turntable, on which a second connecting tooth is arranged; the first connecting tooth can be cooperatively connected with the second connecting tooth so that the rotation directions of the first turntable and the second turntable are opposite; further comprising a swing rod, which can rotate in one direction, a first swing rod capable of synchronously rotating with the first turntable is arranged on the first turntable, a second swing rod capable of synchronously rotating with the second turntable is arranged on the second turntable, and the swing rod can be intermittently cooperatively connected with the first swing rod and the second swing rod so that the swing rod drives the first turntable and the second turntable to perform intermittent forward and reverse rotations.

[0006] In an embodiment of the utility model, a driving motor is further included, and the driving motor can be connected to the swing rod, and the driving motor can drive the swing rod to rotate in one direction.

[0007] In an embodiment of the utility model, an MCU module is further included, the MCU module can be connected to a power supply, the driving motor can be connected to the MCU module, and the MCU module can be used to control the start and stop of the driving motor.

[0008] In an embodiment of the utility model, a switch identifier is further included, the switch identifier can be connected to the MCU module, and the switch identifier is used to identify the rotation information of the first turntable or the second turntable and send the rotation information to the MCU module to turn off the driving motor.

[0009] In an embodiment of the present utility model, a cooperation module is provided on the outer periphery of the first turntable or the second turntable, and a switch contact capable of cooperating with the cooperation module is provided on the switch identifier. As the first turntable or the second turntable rotates, the whole cooperation module completes a rotational cooperation with the switch contact. At this time, the switch identifier sends the rotation information to the MCU module to turn off the rotation of the driving motor.

[0010] In an embodiment of the present utility model, a power interface capable of being connected to a power supply is provided on the MCU module.

[0011] In an embodiment of the present utility model, a driving rod is provided on the first turntable / and or the second turntable, and the driving rod can rotate synchronously with the first turntable / and or the second turntable.

[0012] In an embodiment of the present utility model, a moving member cooperating with the driving rod is further included. The driving rod can swing up and down intermittently when the swing rod rotates in one direction, so as to realize the intermittent up and down movement of the moving member.

[0013] An automatic commutation device of the present utility model has the following beneficial effects: The device uses a driving motor to control the movement of the driving gear set, and then uses a switch identifier to identify the rotation position, so as to control the switch of the driving motor. Then, the principle of gear meshing and opposite movement is used to realize the automatic commutation of the mechanism, so as to control the back-and-forth movement of the moving member. The driving motor only needs to move in one direction, reducing the requirements for it. It can also be made into a manual-automatic integrated function to increase manual control: The gear set is staggered from the driving motor to avoid manual damage to the driving motor; the turntable connected to the moving member becomes the active turntable to realize the manual control of the back-and-forth movement of the moving member. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the present utility model in the first state.

[0016] Figure 2 It is a schematic diagram of the present utility model in the second state.

[0017] Figure 3 It is a schematic diagram of the present utility model in the third state.

[0018] Figure 4 It is a schematic diagram of the cooperation between the present utility model and the moving member Figure 1 .

[0019] Figure 5 It is a schematic diagram of the cooperation between the present utility model and the moving part Figure 2 .

[0020] Figure 6 It is a schematic diagram of the cooperation between the present utility model and the moving part Figure 3 . Specific embodiments

[0021] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0024] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0026] Referring to the accompanying drawings of the specification, an automatic commutation device includes: a first turntable 10, on which a first connecting tooth 11 is provided, and a second turntable 20, on which a second connecting tooth 21 is provided; the first connecting tooth can be cooperatively connected with the second connecting tooth so that the rotation directions of the first turntable and the second turntable are opposite, and the two connecting teeth are in a meshing state; further includes a swing rod 30, which can rotate in one direction, that is to say, the swing rod only needs a driving motor that rotates in one direction, without the need for a driving motor that can achieve forward and reverse rotation, reducing the requirements for the driving motor and also saving costs. A first swing rod 12 that can rotate synchronously with it is provided on the first turntable, and a second swing rod 22 that can rotate synchronously with it is provided on the second turntable. During use, the first swing rod and the second swing rod do not interfere with each other. The swing rod can be intermittently cooperatively connected with the first swing rod and the second swing rod so that the swing rod drives the first turntable and the second turntable to perform intermittent forward and reverse rotations. Referring to the accompanying drawings of the specification, assuming that the clockwise rotation of the swing rod is forward rotation: In the first state: When the swing rod cooperates with the first swing rod, the swing rod drives the first swing rod to rotate. At this time, the first turntable rotates reversely and the second turntable rotates forward. When the swing rod rotates to a certain angle, the first swing rod disengages from the swing rod, and the swing rod can be in contact and cooperate with or separate from the second swing rod. At this time, a stroke is completed, and the MCU module will control the driving motor to stop rotating; In the second state: When the driving motor rotates again, the swing rod drives the second swing rod to rotate. At this time, the second turntable rotates reversely and the first turntable rotates forward, which is just the opposite of before, realizing commutation. When the swing rod rotates to a certain angle, the second swing rod disengages from the swing rod. At this time, a stroke is completed, and the MCU module will control the driving motor to stop rotating again; In the third state: When the driving motor is started again, the swing rod can rotate freely and then contact with the first swing rod; then perform the actions of the first state above, so that each time the swing rod that rotates in one direction is started, intermittent commutation can be realized.

[0027] Preferably, it further includes a driving motor 31, which can be connected to the swing rod, and the driving motor can drive the swing rod to rotate in one direction.

[0028] Further, it further includes an MCU module 40, which can be connected to the power supply, the driving motor can be connected to the MCU module, and the MCU module can be used to control the start and stop of the driving motor. It also includes a switch identifier 50, which can be connected to the MCU module, and the switch identifier is used to identify the rotation information of the first turntable or the second turntable and send the rotation information to the MCU module to turn off the driving motor.

[0029] Among them, the switch identifier can be inductive or mechanical. Hereinafter, a mechanical one will be described: A matching module 60 is provided on the outer periphery of the first turntable or the second turntable. This matching module can be a convex block or a groove provided on the outer periphery of the first turntable or the second turntable. In the embodiment shown in the figure, the embodiment of the convex block is drawn. A switch contact 51 that can cooperate with the matching module is provided on the switch identifier. As the first turntable or the second turntable rotates, the whole matching module completes a rotational cooperation with the switch contact. At this time, the switch identifier sends the rotation information to the MCU module to turn off the rotation of the drive motor. That is to say, before rotation, the switch contact is located beside one side of the matching module, and after rotation, the switch contact is located beside the other side of the matching module. In this way, one signal acquisition is achieved. The switch identifier sends the signal to the MCU module to turn off the drive motor, and a signal can be acquired for both forward and reverse rotations. Of course, it can also be electronic. For example, infrared rays are used. When it is detected that the two turntables rotate a certain angle, signal acquisition is completed, and then it is sent to the MCU module to turn off the drive motor. The certain angle mentioned here can be the radian of the matching module, and the radian of this matching module is the same as the angle of swing of the drive rod.

[0030] Furthermore, a power interface 41 that can be connected to a power supply is provided on the MCU module.

[0031] Preferably, a drive rod 70 is provided on the first turntable / and or the second turntable, and the drive rod can rotate synchronously with the first turntable / and or the second turntable. It further includes a moving member 80 that cooperates with the drive rod. This moving member can be hinged or in abutting cooperation with the drive rod. The drive rod can perform intermittent up and down swinging when the swing rod rotates in one direction, so as to realize the intermittent up and down movement of the moving member, and this moving member makes a linear movement.

[0032] More specifically, the present utility model relates to an automatic commutation device, which includes a driving motor module, a gear set module, a swing rod for movement, a switch identifier (similar to a contact switch), an MCU module, etc.; among them: Driving motor module: A swing rod is equipped on the rotating shaft of the driving motor. During the rotation of the swing rod, it drives the gear set in sequence. The gear set has at least two turntables with connecting teeth, and one of the turntables is connected to the swing rod. Using the principle of the meshing and opposite movement of the two connecting teeth, when the driving motor drives the first swing rod on the first turntable, the first turntable rotates in the opposite direction to the driving motor, and the first swing rod rotates from the first state to the second state; while the first turntable is moving, it drives the second turntable to move, so that the second turntable rotates in the same direction as the driving motor; when the swing rod disengages from the first swing rod, the driving motor becomes to drive the second swing rod on the second turntable, the second turntable rotates in the opposite direction to the driving motor, the second turntable drives the first turntable to move, the first turntable rotates in the same direction as the driving motor, and the first swing rod returns to its original position. The gear set is composed of two turntables with connecting teeth, and then the switch identifier is used to identify the position to control the stop of the driving motor. Then, using the principle of the meshing and opposite movement of the gears to realize the automatic commutation of the mechanism, thereby controlling the reciprocating movement of the moving part. In one embodiment, there is a matching module on the second turntable, so that a convex part is formed at the position of the matching module, and the two sides of the convex part are concave parts. The convex part is connected to the switch identifier. Each time the switch is coupled, the driving motor stops once. As shown in the figure, when the driving rod is at the highest position, the switch moves from one concave part to the other concave part, and the driving motor stops; during the process from concave-convex-concave, the driving rod moves from the highest to the lowest, and the driving motor stops. There is at least one switch identifier, and at the same time, it also includes a switch for controlling the start of the driving motor (not drawn in the figure). Pressing it once realizes the driving of the driving motor, and the shutdown is controlled by the MCU module. This mechanism can add manual operation or anti-misoperation functions. The function of integrating manual and automatic operations is that when the driving rod is at the highest position and the swing rod disengages from the gear set, that is, in the third state, manually operate the moving part, and the swing rod is forced to drive the gear set to move in the reverse direction. For specific reference, please refer to the accompanying drawings of the specification. Figure 6 At this time, the driving motor and the swing rod stop rotating.

[0033] The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be within the scope of the inventive concept described herein, through the above teachings or the technology or knowledge in related fields for modification. And any modifications and changes made by those skilled in the art without departing from the spirit and scope of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An automatic reversing device, characterized in that: include: A first rotating disk, wherein the first rotating disk is provided with a first connecting tooth, and a second rotating disk, wherein the second rotating disk is provided with a second connecting tooth; the first connecting tooth can be matched and connected with the second connecting tooth so that the rotation directions of the first rotating disk and the second rotating disk are opposite; and further comprising a swing rod, which can rotate in one direction, a first swing rod which can rotate synchronously with the first rotating disk is provided on the first rotating disk, and a second swing rod which can rotate synchronously with the second rotating disk is provided on the second rotating disk, and the swing rod can be intermittently matched and connected with the first swing rod and the second swing rod so that the swing rod drives the first rotating disk and the second rotating disk to intermittently rotate forward and reversely.

2. An automatic reversing device according to claim 1, characterized in that: It also includes a driving motor, which can be connected to the swing rod and can drive the swing rod to rotate in one direction.

3. An automatic reversing device according to claim 2, characterized in that: It also includes an MCU module, which can be connected to a power supply, and the drive motor can be connected to the MCU module, and the MCU module can be used to control the start and stop of the drive motor.

4. An automatic reversing device according to claim 3, characterized in that: It also includes a switch identifier, which can be connected to the MCU module. The switch identifier is used to identify the rotation information of the first turntable or the second turntable, and send the rotation information to the MCU module to turn off the drive motor.

5. An automatic reversing device according to claim 4, characterized in that: A matching module is arranged on the outer periphery of the first turntable or the second turntable, and a switch contact which can match with the matching module is arranged on the switch identifier. As the first turntable or the second turntable rotates, the matching module as a whole completes a rotation matching with the switch contact. At this time, the switch identifier sends the rotation information to the MCU module to shut down the rotation of the drive motor.

6. An automatic reversing device according to claim 5, characterized in that: The MCU module is provided with a power supply interface which can be connected to a power supply.

7. An automatic reversing device according to any one of claims 1 to 6, characterized in that: The first rotating disk and / or the second rotating disk are provided with a driving rod, and the driving rod can rotate synchronously with the first rotating disk and / or the second rotating disk.

8. An automatic reversing device according to claim 7, characterized in that: It also includes a moving part matched with the driving rod. The driving rod can intermittently swing up and down when the swing rod rotates in one direction, so as to realize the intermittent up and down movement of the moving part.

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