Pulse signal generator

Abstract

The utility model provides a pulse signal generator which comprises a main cylinder and a circuit board connected to one side of the main cylinder, a two-way photoelectric switch is arranged on the side of the circuit board, an auxiliary cylinder is rotationally connected to the periphery of the main cylinder and arranged on the outer side of the circuit board in a sleeved mode, and a plurality of fences are distributed on the inner side of the auxiliary cylinder at intervals in the circumferential direction. The fences are matched with the two-way photoelectric switch, so that when the auxiliary cylinder rotates relative to the main cylinder, the plurality of fences sequentially pass between the transmitting end and the receiving end of the two-way photoelectric switch; the utility model provides a miniaturized novel pulse signal generator with vector characteristics, which is a product which is convenient to operate and is adaptive to a cylindrical shape.

Description

Technical Field

[0001] This utility model relates to the field of signal generators, and more particularly to a pulse signal generator. Background Technology

[0002] Some existing electronic products require a controller for operating menus. Its basic function is to allow users to move forward and backward through the menu to select different items. In this operating mode, the software needs to have at least one pulse signal with vector characteristics to identify forward and backward movements.

[0003] Currently, traditional electronic encoders cannot be directly installed on some products with a circular main structure or generate pulse signals with vector characteristics as usual. Utility Model Content

[0004] The purpose of this invention is to provide a pulse signal generator that improves the convenience of pulse signal control and is suitable for cylindrical products.

[0005] To solve the above-mentioned technical problems, this utility model provides a pulse signal generator, including a main cylinder and a circuit board connected to one side of the main cylinder. A dual-channel photoelectric switch is provided on the side of the circuit board. A secondary cylinder is rotatably connected to the outer periphery of the main cylinder and sleeved on the outer side of the circuit board. A plurality of fences are arranged circumferentially on the inner side of the secondary cylinder. The fences are matched with the dual-channel photoelectric switch so that when the secondary cylinder rotates relative to the main cylinder, the plurality of fences pass between the transmitting end and the receiving end of the dual-channel photoelectric switch in sequence.

[0006] Furthermore, the auxiliary cylinder has a fixing hole, the locking member passes through the fixing hole and is connected to the auxiliary cylinder, the handwheel is installed in the groove on the outer periphery of the auxiliary cylinder, and the inner side of the handwheel has an avoidance groove corresponding to the locking member.

[0007] Furthermore, the outer side of the main cylinder is provided with several grooves spaced apart circumferentially, and the locking member has a positioning bead that matches the groove at one end near the main cylinder, and an elastic element connects the positioning bead and the locking member. The grooves correspond one-to-one with the fence.

[0008] Furthermore, the circuit board side cover is provided with a pressure plate so that the circuit board is located between the pressure plate and the main cylinder.

[0009] Furthermore, the main cylinder has several connecting posts on the side near the pressure plate, and the circuit board has several connecting holes that match the connecting posts, so that when the circuit board is installed on the side of the main cylinder, the connecting posts are inserted into the connecting holes.

[0010] Furthermore, the pressure plate has several mounting holes that match the connecting column, and the positioning element passes through the mounting holes and is connected to the connecting column.

[0011] Furthermore, a limiting groove is formed on the side of the circuit board, and the dual-channel photoelectric switch is installed in the limiting groove.

[0012] The beneficial effects of this utility model are as follows: the circuit board is connected to one side of the main cylinder and a dual-channel photoelectric switch is fixed. When it is necessary to generate a pulse signal with vector characteristics, the secondary cylinder is rotated to drive several fences inside it to rotate, so that the fences pass through the transmitting and receiving ends of the dual-channel photoelectric switch in sequence. During the rotation of the secondary cylinder, the steel ball passes through the groove on the main cylinder in sequence, thereby outputting a regular group of signals. The menu function can be switched through this signal. Moreover, the rotation control method of the secondary cylinder can effectively adapt to the cylindrical shape and improve the signal control convenience of cylindrical products. Attached Figure Description

[0013] Figure 1 This is an exploded view of this utility model.

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Reference numerals in the attached diagram: 1. Main cylinder; 2. Circuit board; 3. Dual-channel photoelectric switch; 4. Secondary cylinder; 5. Fence; 6. Handwheel; 7. Locking element; 8. Groove; 9. Positioning post; 10. Elastic element; 11. Pressure plate; 12. Connecting post; 13. Connecting hole; 14. Mounting hole; 15. Positioning element; 16. Limiting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] like Figures 1-2 The present invention provides a pulse signal generator, including a main cylinder 1 and a circuit board 2 connected to one side of the main cylinder 1. A dual-channel photoelectric switch 3 is provided on the side of the circuit board 2. A secondary cylinder 4 is rotatably connected to the outer periphery of the main cylinder 1 and sleeved on the outer side of the circuit board 2. A plurality of fences 5 are arranged circumferentially on the inner side of the secondary cylinder 4. The fences 5 are matched with the dual-channel photoelectric switch 3 so that when the secondary cylinder 4 rotates relative to the main cylinder 1, the plurality of fences 5 pass between the transmitting end and the receiving end of the dual-channel photoelectric switch 3 in sequence.

[0020] Connect the circuit board to one side of the main cylinder and fix the dual-channel photoelectric switch. When it is necessary to generate a pulse signal with vector characteristics, rotate the secondary cylinder to drive several fences inside it to rotate, so that the fences pass through the transmitter and receiver of the dual-channel photoelectric switch in sequence, thereby outputting a regular group of signals. The menu function can be switched through this signal. Moreover, the rotation control method of the secondary cylinder can effectively adapt to the cylindrical shape, improving the signal control convenience of cylindrical products.

[0021] In one embodiment of this solution, both the main cylinder and the auxiliary cylinder are cylindrical in shape, and the circuit board is annular in shape.

[0022] The specific working principle of the dual-channel photoelectric switch is as follows: The photoelectric switch consists of a transmitting light source (transmitter) and a photoelectric conversion receiver (receiver). When the light from the transmitting light source shines on the photoelectric converter, the converter will output a high-level signal. When an obstruction is added between the transmitting light source and the receiving light source, the transmitted light cannot reach the photoelectric conversion receiver, and the converter will output a low-level signal.

[0023] Two sets of photoelectric switches are placed side-by-side, numbered 1 and 2. When a barrier (fence 5) with a central notch is passed across these two sets of photoelectric switches in the order of 1 and 2, the circuit system will receive a signal of high intensity 1 followed by high intensity 2. When the barrier is passed across the same set of photoelectric switches in the opposite direction, the circuit system will receive a signal of high intensity 2 followed by high intensity 1. When the barrier is placed in a circular secondary cylinder, a series of notches are evenly distributed between several fences. When the barrier is swept across the above photoelectric switch sets according to a certain pattern, a series of pulse codes with quantity and vector relationships will be obtained.

[0024] Preferably, the auxiliary cylinder 4 has a fixing hole, the locking member 7 passes through the fixing hole and is connected to the auxiliary cylinder 4, the handwheel 6 is installed in the groove on the outer periphery of the auxiliary cylinder 4, and the inner side of the handwheel 6 has an avoidance groove corresponding to the locking member 7.

[0025] Specifically, by rotating the handwheel, the interaction between the handwheel and the groove causes the auxiliary cylinder to rotate. This allows the handwheel to protect the auxiliary cylinder, circuit board, and other components inside, while also improving the feel of rotating the auxiliary cylinder and increasing the smoothness of the user's adjustment process.

[0026] Among them, locking screws can be used as locking components.

[0027] Preferably, the outer side of the main cylinder 1 is provided with a plurality of grooves 8 spaced apart along the circumference, and the locking member 7 has a positioning bead 9 that matches the groove 8 at one end near the main cylinder 1, and an elastic member 10 is connected between the positioning bead 9 and the locking member 7, and the grooves 8 correspond one-to-one with the fence 5.

[0028] Specifically, when the locking component connects the handwheel and the auxiliary cylinder, the positioning bead is simultaneously tightened by the elastic component, so that the positioning bead is locked in one of the grooves. When the handwheel rotates, the locking component rotates synchronously with the handwheel, causing the positioning bead to disengage from the groove. At this time, the positioning bead compresses the elastic component in the opposite direction, and after the handwheel rotates a certain angle, the elastic component pushes the positioning bead into the adjacent groove. During this process, the process of the positioning bead disengaging from the groove and re-entering the groove will produce sound and tactile cues, thereby improving the user's clear perception of the rotation angle of the handwheel.

[0029] In a preferred embodiment of this solution, the groove matches the fence, and a one-to-one groove-to-fence configuration can be adopted to improve the sensing effect of the fence when it passes the photoelectric switch.

[0030] The elastic element can be a spring structure.

[0031] Preferably, the circuit board 2 is provided with a pressure plate 11 on its side cover so that the circuit board 2 is located between the pressure plate 11 and the main cylinder 1.

[0032] Specifically, the pressure plate positions and presses the sides of the circuit board, keeping the circuit board between the pressure plate and the main cylinder, preventing the circuit board and the dual-channel photoelectric switch from shaking and causing inaccurate pulse signals.

[0033] Preferably, the main cylinder 1 has a plurality of connecting posts 12 on the side near the pressure plate 11, and the circuit board 2 has a plurality of connecting holes 13 that match the connecting posts 12, so that when the circuit board 2 is installed on the side of the main cylinder 1, the connecting posts 12 are inserted into the connecting holes 13.

[0034] Specifically, when installing the circuit board, the connecting holes on the circuit board are aligned with the connecting posts one by one, so that the connecting posts are inserted into the connecting holes to ensure that the relative position between the circuit board and the main cylinder is stable and accurate.

[0035] Preferably, the pressure plate 11 has a plurality of mounting holes 14 that match the connecting post 12, and the positioning member 15 passes through the mounting holes 14 and is connected to the connecting post 12.

[0036] Specifically, after the circuit board is installed, the mounting holes on the pressure plate are aligned with the connecting posts one by one, and the positioning parts are inserted through the mounting holes and connected to the connecting posts so that the relative positions of the pressure plate, circuit board, and main cylinder are all positioned and fixed by the positioning parts and connecting posts, thereby increasing the stability of the pulse signal when the equipment is in use.

[0037] The connecting post has holes that match the positioning component to ensure the connection between the positioning component and the connecting post; the positioning component can be a screw.

[0038] Preferably, a limiting groove 16 is formed on the side of the circuit board 2, and the dual-channel photoelectric switch 3 is installed in the limiting groove 16.

[0039] Specifically, the setting of the limiting groove ensures accurate installation of the dual-channel photoelectric switch and the circuit board, and guarantees that the dual-channel photoelectric switch will not wobble during subsequent use.

[0040] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A pulse signal generator, characterized in that: The device includes a main tube (1) and a circuit board (2) connected to one side of the main tube (1). A dual-channel photoelectric switch (3) is provided on the side of the circuit board (2). A secondary tube (4) is rotatably connected to the outer periphery of the main tube (1) and sleeved on the outer side of the circuit board (2). A number of fences (5) are arranged circumferentially on the inner side of the secondary tube (4). The fences (5) are matched with the dual-channel photoelectric switch (3) so that when the secondary tube (4) rotates relative to the main tube (1), the fences (5) pass between the transmitting end and the receiving end of the dual-channel photoelectric switch (3) in sequence.

2. The pulse signal generator according to claim 1, characterized in that: The auxiliary cylinder (4) has a fixing hole, and the locking member (7) passes through the fixing hole and is connected to the auxiliary cylinder (4). The handwheel (6) is installed in the groove on the outer periphery of the auxiliary cylinder (4), and the inner side of the handwheel (6) has a clearance groove corresponding to the locking member (7).

3. The pulse signal generator according to claim 2, characterized in that: The outer side of the main cylinder (1) is provided with a plurality of grooves (8) spaced apart in the circumferential direction. The locking member (7) has a positioning bead (9) that matches the groove (8) at one end near the main cylinder (1), and an elastic member (10) is connected between the positioning bead (9) and the locking member (7). The grooves (8) correspond one-to-one with the fence (5).

4. The pulse signal generator according to claim 1, characterized in that: The circuit board (2) is covered with a pressure plate (11) so that the circuit board (2) is located between the pressure plate (11) and the main cylinder (1).

5. The pulse signal generator according to claim 4, characterized in that: The main cylinder (1) has several connecting posts (12) on the side near the pressure plate (11), and the circuit board (2) has several connecting holes (13) that match the connecting posts (12) so that when the circuit board (2) is installed on the side of the main cylinder (1), the connecting posts (12) are inserted into the connecting holes (13).

6. The pulse signal generator according to claim 5, characterized in that: The pressure plate (11) has several mounting holes (14) that match the connecting post (12), and the positioning member (15) passes through the mounting holes (14) and is connected to the connecting post (12).

7. The pulse signal generator according to claim 1, characterized in that: The circuit board (2) has a limiting groove (16) on its side, and the dual-channel photoelectric switch (3) is installed in the limiting groove (16).

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