Portable low-frequency chopper

Abstract

The utility model relates to the technical field of optical choppers, and discloses a portable low-frequency chopper which comprises a low-frequency chopper shell, the upper end and the lower end of the low-frequency chopper shell are in contact with protective shells, the front end and the rear end of each protective shell are in threaded connection with two bolts, and the bolts are in threaded connection with the protective shells. Two connecting blocks are fixedly connected to the left end and the right end of the bottom side of one protective shell, strip-shaped plates are fixedly connected to the bottom sides of the two connecting blocks, a supporting plate is fixedly connected to the top side of the other protective shell, and a plurality of special-shaped blocks are fixedly connected to the top side of the supporting plate; square columns are slidably connected to the sides, close to each other, of the multiple special-shaped blocks. According to the utility model, the chopper body can be independently disassembled and assembled, so that the situation that the maintenance speed is slow and the maintenance speed is increased due to the fact that the whole device is carried and maintained is avoided, and cables of the device are loosened, so that the cables are prevented from being wound together and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of optical choppers, in particular to a portable low-frequency chopper. Background Art

[0002] A low frequency chopper is an electronic device used to control the voltage or current when AC power is converted to DC power. It is often used to adjust the speed or torque of a DC motor and to implement voltage regulation or power regulation in a DC power system. This device controls the output voltage or current by periodically turning the switch on and off. When the switch is on, the power is connected to the load, and when the switch is off, the power is disconnected. By adjusting the on and off frequency of the switch and the duty cycle (i.e. the ratio of the on time to the cycle time), precise control of the output voltage or current can be achieved.

[0003] After searching, the Chinese patent document announcement number: CN214241885U discloses a vibration reduction structure of a neutron chopper, the outer wall of the support seat is fixed with a guard ring, the upper side wall of the mounting base is provided with a plurality of slots, and the side of the limit block pointing to the guard ring is connected to a damper with the other end against the inner side wall of the guard ring. The limit block connected to the damper is clamped in the slot on the mounting base, and the damper is against the side wall of the guard ring, which limits the movement of the neutron chopper body. At the same time, the damper can offset the vibration generated by the lateral movement of the neutron chopper body. The elastic plate at the lower end of the support seat is connected with a spring between the base to achieve vibration buffering effect, reduce the damage caused by vibration to the neutron chopper body, and the guide rod achieves the effect of precise positioning to prevent the support seat from being offset. The limit plate of the annular structure forms a limiting effect on the guide rod, forming a vibration damping effect on the neutron chopper body from different dimensions.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the above patent mentioned in the specific implementation mode: "A vibration reduction structure of a neutron chopper, including a neutron chopper body 7, and a mounting base 6 connected to the lower end of the neutron chopper body 7". Although the above patent improves the stability of the device by fixing the chopper body to the mounting base, it is difficult to take it out separately when it is damaged and needs to be repaired or replaced, resulting in a slow maintenance rate. Therefore, in view of the above shortcomings, a convenient low-frequency chopper is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a portable low-frequency chopper, aiming to improve the problem in the prior art that the chopper body cannot be separately disassembled and repaired, resulting in reduced maintenance efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A portable low-frequency chopper comprises a low-frequency chopper housing, wherein the upper and lower ends of the low-frequency chopper housing are in contact with a protective shell, the front and rear ends of the protective shell are threadedly connected with two bolts, the left and right ends of the bottom side of one of the protective shells are fixedly connected with two connecting blocks, wherein the bottom sides of the two connecting blocks are fixedly connected with strip plates, the top side of the other protective shell is fixedly connected with a support plate, the top side of the support plate is fixedly connected with a plurality of special-shaped blocks, the adjacent sides of the plurality of special-shaped blocks are slidably connected with a square column, the top inner wall of the square column is provided with a disassembly component, the bottom side of the disassembly component is fixedly connected with a sliding plate, the bottom side of the sliding plate is fixedly connected with a trapezoidal block, the bottom of the square column is slidably connected with sliding blocks all around, the bottom side of the sliding block is fixedly connected with a limit plate, and the far sides of the plurality of limit plates are fixedly connected with spring 2.

[0008] Furthermore, the rear end of the low-frequency chopper housing is rotatably connected to a connecting column, a rotating plate is fixedly connected to the top side of the connecting column, two circular sleeves are fixedly connected to the outside of the connecting column, a rotating assembly is provided at the bottom end of the connecting column, an opening block is fixedly connected to the bottom side of the rotating assembly, both left and right ends of the opening block are rotatably connected to a rotating plate, the far ends of the two rotating plates are rotatably connected to a limit rod, the outside of the limit rod is fixedly connected to an opening slider, the far sides of the two opening sliders are fixedly connected to a connecting block, and the far sides of the two connecting blocks are fixedly connected to an arc plate.

[0009] Furthermore, the disassembly assembly includes a slide plate, the outside of which is slidably connected to the top inner wall of the square column, and the top side of the slide plate is fixedly connected to a spring 1.

[0010] Furthermore, the rotating assembly comprises a threaded rod, the top side of the threaded rod is fixedly connected to the bottom side of the connecting column, and the outer thread of the threaded rod is connected to a threaded barrel.

[0011] Furthermore, the top side of the spring 1 is fixedly connected to the top side of the inner wall of the square column, and the bottom side of the slide plate is fixedly connected to the top side of the sliding plate.

[0012] Furthermore, the outside of the trapezoidal block is slidably connected to the inner wall of the square column, and the outside of the trapezoidal block is in contact with adjacent ends of a plurality of sliding blocks around each other.

[0013] Furthermore, the far sides of the plurality of springs 2 are respectively fixedly connected around the bottom end of the square column, and the far ends of the plurality of sliding blocks are respectively slidably connected to the inner walls of the near ends of the plurality of special-shaped blocks.

[0014] Furthermore, the exteriors of the two opening sliders are slidably connected to the left and right ends of the rear portion of the low-frequency chopper housing, and the exteriors of the two connecting blocks are slidably connected to the left and right ends of the rear portion of the low-frequency chopper housing.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, by using the strip plate, the support plate, the special-shaped block, the square column, the spring, the slide plate, the sliding plate and other structures in coordination, the chopper body can be disassembled and installed separately, so that there is no need to carry and repair the device as a whole, resulting in a slow maintenance rate, thereby improving the maintenance speed rate.

[0017] 2. In the utility model, by using the opening block, the rotating plate, the limiting rod, the opening slider, the connecting block, the arc plate and other structures in coordination, the cables of the device can be loosened, thereby preventing the cables from being entangled and damaged, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a portable low-frequency chopper proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a square column of a convenient low-frequency chopper proposed by the utility model;

[0020] Figure 3 A schematic diagram of a trapezoidal block structure of a convenient low-frequency chopper proposed by the utility model;

[0021] Figure 4 The utility model provides a schematic diagram of the connecting column structure of a portable low-frequency chopper.

[0022] Legend:

[0023] 1. Low-frequency chopper housing; 2. Protective shell; 3. Bolts; 4. Connecting block; 5. Strip plate; 6. Support plate; 7. Special-shaped block; 8. Square column; 9. Spring 1; 10. Slide plate; 11. Sliding plate; 12. Trapezoidal block; 13. Sliding block; 14. Limiting plate; 15. Spring 2; 16. Connecting column; 17. Turning plate; 18. Round sleeve; 19. Threaded rod; 20. Threaded barrel; 21. Opening block; 22. Rotating plate; 23. Limiting rod; 24. Opening slider; 25. Connecting block; 26. Arc plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a portable low-frequency chopper, including a low-frequency chopper housing 1, the upper and lower ends of the low-frequency chopper housing 1 are in contact with a protective shell 2, the front and rear ends of the protective shell 2 are threadedly connected with two bolts 3, which are used to fix the low-frequency chopper housing 1 and the protective shell 2, and the left and right ends of the bottom side of one of the protective shells 2 are fixedly connected with two connecting blocks 4, wherein the bottom sides of the two connecting blocks 4 are fixedly connected with strip plates 5 for providing stable supporting force, and the top side of the other protective shell 2 is fixedly connected with a support plate 6, and the top side of the support plate 6 is fixedly connected with a plurality of special-shaped blocks 7 for limiting the position of the sliding block 13, and the adjacent sides of the plurality of special-shaped blocks 7 are slidably connected with a square column 8, and the square column 8 can slide vertically through the restriction of the special-shaped blocks 7;

[0026] The top inner wall of the square column 8 is provided with a disassembly assembly, which includes a slide plate 10. The outside of the slide plate 10 is slidably connected to the top inner wall of the square column 8. The slide plate 10 can slide vertically due to the restriction of the square column 8. The top side of the slide plate 10 is fixedly connected to a spring 9. The top side of the spring 9 is fixedly connected to the top side of the inner wall of the square column 8. The spring 9 can be evenly stressed by fixing the two sides of the spring 9. The bottom side of the disassembly assembly is fixedly connected to a sliding plate 11. The bottom side of the slide plate 10 is fixedly connected to the top side of the sliding plate 11. The sliding plate 11 is driven to slide by the slide plate 10. The bottom side of the sliding plate 11 is fixedly connected to a trapezoidal block 12, which then drives the trapezoidal block 12 to slide. The outside of the trapezoidal block 12 is slidably connected to the inner wall of the square column 8 and is restricted by the trapezoidal block 12.

[0027] The square column 8 can slide vertically, and the outer four sides of the trapezoidal block 12 are respectively in contact with the proximal ends of the plurality of sliding blocks 13. The sliding block 13 is pushed to slide by the inclined design of the four sides of the trapezoidal block 12. The bottom of the square column 8 is slidably connected with the sliding block 13. The sliding block 13 is restricted by the square column 8 so that it can slide horizontally. The installation and disassembly are completed by clamping the sliding block 13 inside the square column 8. The far ends of the plurality of sliding blocks 13 are respectively slidably connected to the inner walls of the proximal ends of the plurality of special-shaped blocks 7. The bottom side of the sliding block 13 is fixedly connected to the limiting plate 14, and the limiting plate 14 is driven to slide by the sliding of the sliding block 13. The far sides of the plurality of limiting plates 14 are fixedly connected with springs 2 15. The far sides of the plurality of springs 2 15 are respectively fixedly connected around the bottom ends of the square column 8. The two sides of the springs 2 15 are fixed so that the springs 2 15 can be evenly stressed.

[0028] Reference Figure 1 and Figure 4 The rear end of the low-frequency chopper housing 1 is rotatably connected with a connecting column 16. The connecting column 16 can stably rotate due to the restriction of the low-frequency chopper housing 1. The top side of the connecting column 16 is fixedly connected with a rotating plate 17, which is driven to rotate by the connecting column 16. The outside of the connecting column 16 is fixedly connected with two round sleeves 18, which drive the round sleeves 18 to rotate and prevent the connecting column 16 from falling. The bottom end of the connecting column 16 is provided with a rotating assembly, which includes a threaded rod 19. The top side of the threaded rod 19 is fixedly connected to the bottom side of the connecting column 16. The round sleeve 18 is driven to rotate by the connecting column 16. The external thread of the threaded rod 19 is connected with a threaded barrel 20. The threaded barrel 20 is driven to move up and down by the rotation of the threaded rod 19. The bottom side of the rotating assembly is fixedly connected with an opening block 21;

[0029] The left and right ends of the opening block 21 are rotatably connected with a rotating plate 22, and the rotating plate 22 can be rotated by the up and down movement of the opening block 21. The far ends of the two rotating plates 22 are rotatably connected to the limit rod 23, so that the rotating plate 22 can rotate with the limit rod 23 as the center point. The outside of the limit rod 23 is fixedly connected with an opening slider 24, and the movement of the limit rod 23 drives the opening slider 24 to slide. The outsides of the two opening sliders 24 are respectively slidably connected to the left and right ends of the rear part of the low-frequency chopper housing 1. The opening slider 24 can slide horizontally through the restriction of the low-frequency chopper housing 1. The far side of the two opening sliders 24 is fixedly connected with a connecting block 25, and the connecting block 25 is driven to move by the opening slider 24. The outsides of the two connecting blocks 25 are respectively slidably connected to the left and right ends of the rear part of the low-frequency chopper housing 1. The restriction of the low-frequency chopper housing 1 allows the connecting block 25 to slide horizontally. The far side of the two connecting blocks 25 is fixedly connected with an arc plate 26.

[0030] Working principle: we pull the slide plate 10 to move upward, thereby squeezing the spring 19 while pulling the sliding plate 11, so that the spring 19 can store elastic potential energy, and then give the sliding plate 11 a force to reset in the opposite direction, and then the sliding plate 11 will drive the trapezoidal block 12 to move upward, at this time, the spring 2 15 squeezed by the limit plate 14 is reset by the force when compressed, and the force of the spring 19 in the compressed state is much greater than the force of the spring 2 15 when compressed, at this time, the limit plate 14 is convenient for pushing the sliding block 13 to slide, thereby the interior of the principle special-shaped block 7, and finally the square column 8 is taken out separately for maintenance, and after the force is sent to the slide plate 10, the spring 19 will reset and push the slide plate 10 downward, and then push the sliding plate 11 to slide, thereby pushing the trapezoidal block 12 to slide downward and push the sliding block 13, so that the sliding block 13 can push the limit plate 14 and squeeze the spring 2 15, because the compression force of the spring 19 is much greater than the force of the spring 2 15 when compressed, thereby completing the installation of the square column 8;

[0031] Then we hold the rotating plate 17 and apply a rotational force, which in turn drives the connecting column 16 to rotate, so that it is restricted by the two circular sleeves 18, and then the connecting column 16 will drive the threaded rod 19 to rotate, and at the same time the threaded tube 20 connected by the thread will move upward, driving the opening block 21 to move upward, and driving the rotating plate 22 to rotate with the limiting rod 23 as the center of the circle, and the limiting rod 23 is driven to slide by the rotation of the rotating plate 22, and then the opening slider 24 is driven to slide, thereby driving the connecting block 25 to slide, and at this time, the distance between the two arc plates 26 can be adjusted to use the length of the cable and loosen it.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable low-frequency chopper, comprising a low-frequency chopper housing (1), characterized in that: The upper and lower ends of the low-frequency chopper housing (1) are in contact with a protective shell (2), and the front and rear ends of the protective shell (2) are both threadedly connected with two bolts (3). The left and right ends of the bottom side of one of the protective shells (2) are fixedly connected with two connecting blocks (4), wherein the bottom sides of the two connecting blocks (4) are fixedly connected with strip plates (5), and the top side of the other protective shell (2) is fixedly connected with a support plate (6), and the top side of the support plate (6) is fixedly connected with a plurality of special-shaped blocks (7), and the plurality of special-shaped blocks (7) are fixedly connected with the top side of the support plate (6). A square column (8) is slidably connected to the adjacent side of the special-shaped block (7); a disassembly assembly is arranged on the inner wall of the top end of the square column (8); a sliding plate (11) is fixedly connected to the bottom side of the disassembly assembly; a trapezoidal block (12) is fixedly connected to the bottom side of the sliding plate (11); sliding blocks (13) are slidably connected to the bottom of the square column (8); a limit plate (14) is fixedly connected to the bottom side of the sliding block (13); and springs (15) are fixedly connected to the distant sides of the plurality of limit plates (14).

2. A portable low-frequency chopper according to claim 1, characterized in that: The rear end of the low-frequency chopper housing (1) is rotatably connected to a connection column (16), a rotating plate (17) is fixedly connected to the top side of the connection column (16), two round sleeves (18) are fixedly connected to the outside of the connection column (16), a rotating assembly is provided at the bottom end of the connection column (16), an opening block (21) is fixedly connected to the bottom side of the rotating assembly, the left and right ends of the opening block (21) are rotatably connected to a rotating plate (22), the two rotating plates (22) are rotatably connected to a limiting rod (23) at their far ends, an opening slider (24) is fixedly connected to the outside of the limiting rod (23), the two opening sliders (24) are fixedly connected to a connection block (25) at their far sides, and the two connection blocks (25) are fixedly connected to an arc plate (26) at their far sides.

3. A portable low-frequency chopper according to claim 1, characterized in that: The disassembly assembly comprises a slide plate (10), the outside of the slide plate (10) is slidably connected to the inner wall of the top end of the square column (8), and the top side of the slide plate (10) is fixedly connected to a spring 1 (9).

4. A portable low-frequency chopper according to claim 2, characterized in that: The rotating assembly comprises a threaded rod (19), the top side of the threaded rod (19) is fixedly connected to the bottom side of the connecting column (16), and the outer thread of the threaded rod (19) is connected to a threaded barrel (20).

5. The portable low-frequency chopper according to claim 3, characterized in that: The top side of the spring 1 (9) is fixedly connected to the top side of the inner wall of the square column (8), and the bottom side of the slide plate (10) is fixedly connected to the top side of the sliding plate (11).

6. A portable low-frequency chopper according to claim 3, characterized in that: The outside of the trapezoidal block (12) is slidably connected to the inner wall of the square column (8), and the outside of the trapezoidal block (12) is in contact with adjacent ends of a plurality of sliding blocks (13) respectively.

7. The portable low-frequency chopper according to claim 1, characterized in that: The far sides of the plurality of springs (15) are fixedly connected to the bottom of the square column (8) and the far ends of the plurality of sliding blocks (13) are slidably connected to the inner walls of the near ends of the plurality of special-shaped blocks (7).

8. A portable low-frequency chopper according to claim 4, characterized in that: The exteriors of the two opening sliders (24) are respectively slidably connected to the left and right ends of the rear portion of the low-frequency chopper housing (1), and the exteriors of the two connecting blocks (25) are respectively slidably connected to the left and right ends of the rear portion of the low-frequency chopper housing (1).

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