Inclined vibrating screen

Abstract

The utility model discloses an inclined vibrating screen, and relates to the technical field of screening, the inclined vibrating screen comprises a main shell, a screen plate is fixedly arranged at the bottom in a cavity of the main shell, and a power mechanism is arranged between the bottom in the cavity of the main shell and the screen plate; the power mechanism comprises a rotating seat fixedly arranged on one side in a cavity of the main shell, a first rotating mechanism and a second rotating mechanism are rotationally arranged at the two ends of the side surface of the rotating seat correspondingly, and the first rotating mechanism and the second rotating mechanism are consistent in structure. The first rotating mechanism and the second rotating mechanism are fixedly connected with the two sides of the middle of the moving base, then the moving plate is controlled to move between the screen plate and the main shell, when the screen plate vibrates, the cleaning plate is controlled to clean impurities in the screen holes, and the screening efficiency is improved while manual irregular cleaning is avoided.

Description

Technical Field

[0001] The present application relates to the field of screening technology, and in particular to an inclined vibrating screen. Background Art

[0002] Screening is a key process in the sand and gravel, construction waste, and mining industries. When factories recycle or process materials, they need to use vibrating screens to remove dust, mud, and other debris attached to the surface of the materials. Conventional vibrating screens generally vibrate the materials into the screen to remove debris. During the screening process, the debris remains on the surface of the screen and is not easy to remove.

[0003] For example, patent number CN201821437460.0, a vibrating screen, including a vibrating screen core, a vibrator, a motor and a transmission device, wherein the vibrating screen core includes no less than one vibrating screen core, the vibrating screen cores are independently arranged in series, there is an inclination angle between the vibrating screen core and the horizontal plane, and an exciter is installed at both ends of each vibrating screen core, and the motor is connected to the exciter through the transmission device to provide a vibration frequency amplitude for each vibrating screen core. The above device has the following shortcomings in actual use.

[0004] The device applies vibration to the box body through several vibration motors fixed on both sides of the screen box. At the same time, a screen is fixed in the box body at an angle. When the material is poured onto the surface of the screen, it is vibrated and falls into the bottom of the box body for storage. However, the debris in the material will be retained in the mesh of the screen and cause blockage. The screen needs to be cleaned from time to time, which affects the screening efficiency and increases the labor cost, which is very inconvenient. Utility Model Content

[0005] In order to improve the problem that the screen cannot be cleaned conveniently when screening materials in conventional vibrating screens, the present application provides an inclined vibrating screen.

[0006] The inclined vibrating screen provided in this application adopts the following technical solution:

[0007] An inclined vibrating screen comprises a main shell, a sieve plate is fixedly arranged at the bottom of the main shell cavity, and a power mechanism is arranged between the bottom of the main shell cavity and the sieve plate;

[0008] The power mechanism comprises a rotating seat fixedly arranged on one side of the main housing cavity, and a first rotating mechanism and a second rotating mechanism are rotatably arranged at two ends of the side surface of the rotating seat, and the first rotating mechanism and the second rotating mechanism have the same structure.

[0009] By adopting the above technical solution, the first rotating mechanism and the second rotating mechanism are fixedly connected to both sides of the middle of the movable seat, thereby controlling the movable plate to move between the screen plate and the main shell, thereby cleaning the debris in the screen hole.

[0010] Preferably, the first rotating mechanism includes a second connecting rod rotatably connected to one side of the rotating seat, one end of the surface of the second connecting rod is fixedly connected to a second rotating plate, and one end of the side surface of the second rotating plate away from the second connecting rod is rotatably connected to a support rod.

[0011] By adopting the above technical solution, the second connecting rod is rotatably connected to the rotating seat, so that the second rotating plate rotates with the second connecting rod as a fulcrum, and then the support rod rotates with the second connecting rod as the center.

[0012] Preferably, one end of the support rod away from the second connecting rod is rotatably connected to the first rotating plate, one end of the side surface of the first rotating plate away from the support rod is fixedly connected to the first connecting rod, one end of the first connecting rod away from the first rotating plate is rotatably connected to the inner wall of the main shell, and a spur gear is fixedly provided in the middle of the surface of the first connecting rod.

[0013] By adopting the above technical solution, the first connecting rod is rotatably connected to the main housing, supporting the first rotating plate while transmitting the rotational force to the first rotating plate and the spur gear.

[0014] Preferably, the power mechanism further comprises a gear belt meshingly arranged on the surface of the spur gears of the first rotating mechanism and the second rotating mechanism, a servo motor is fixedly arranged on one side of the main housing, and an output shaft of the servo motor passes through the main housing and is fixedly connected to the first connecting rod.

[0015] By adopting the above technical solution, the servo motor is fixedly connected to the first connecting rod to provide power, and the gear belt is used to connect the first rotating mechanism and the second rotating mechanism. When the servo motor controls the operation of the first rotating mechanism, the rotational force is transmitted to operate the second rotating mechanism.

[0016] Preferably, a movable seat is inserted and fixedly provided on the surface of the support rods of the first rotating mechanism and the second rotating mechanism, and a plurality of cleaning plates are fixedly provided on the upper end surface of the movable seat.

[0017] By adopting the above technical solution, the movable seat is driven by the first rotating mechanism and the second rotating mechanism to move in the main shell cavity. When the movable seat moves, the cleaning plate is plugged into the sieve holes of the sieve plate to clean the debris in the sieve holes.

[0018] Preferably, a limiting plate is fixedly provided on the inner wall of the main shell on one side surface relative to the sieve plate, the side surface of the limiting plate is fixedly connected to one end of the sieve plate, and a plurality of sieve holes are arranged in an array on the surface of the sieve plate.

[0019] By adopting the above technical solution, the limit plate is used to connect the main shell and the screen plate. At the same time, a certain space is reserved between the screen plate and the bottom of the main shell to cover part of the structure in the power mechanism to prevent materials from entering the power mechanism.

[0020] Preferably, side grooves are provided on both sides of the inner wall of the main shell, and first discharge ports are provided on the outer surface of the main shell at positions relative to the two side grooves. The two first discharge ports respectively penetrate the main shell and are connected to the two side grooves one by one.

[0021] By adopting the above technical solution, the side groove guides the debris screened out by the drying board, and the debris enters the first discharge port through the side groove and is discharged to the outside.

[0022] Preferably, a second discharge port is provided on the inner wall surface of the main shell at the bottom of the rotating seat, and a feed port is provided on a side surface of the main shell away from the second discharge port.

[0023] By adopting the above technical solution, the feed port is used to pour the material to be screened, and the material after screening is discharged from the second discharge port.

[0024] Preferably, vibration columns are fixedly provided on the end surfaces on both sides of the main shell, a fixing column is fixedly provided on one side of the main shell between the two vibration columns, a vibration motor is fixedly provided on the top of the fixing column, the vibration end of the vibration motor movably passes through the side wall and is located in the main shell cavity, a transmission rod is fixedly provided on the surface of the part of the vibration motor located in the main shell cavity, and the end of the transmission rod away from the vibration motor is movably connected to the inner wall of the main shell.

[0025] By adopting the above technical solution, the vibration column is fixedly connected to both sides of the main shell, and receives the vibration force transmitted by the vibration motor, which supports the main shell and makes the main shell vibrate at the same time.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The first rotating mechanism and the second rotating mechanism are used to provide thrust to the bottom of the moving seat, and the moving seat is controlled to rotate and move along the bottom of the screen plate. When the moving seat moves, the cleaning plate is movably plugged along the grooves between the screen holes. When the cleaning plate is plugged, the debris inside the screen hole is squeezed out, and the debris slides from the stepped surface of the screen plate to the side groove, and then is discharged from the first discharge port, thereby completing the cleaning of the screen holes during the material screening process, solving the problem of irregular manual cleaning of the screen, improving screening efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the three-dimensional front view of this application;

[0029] Figure 2 This is an exploded view of this application;

[0030] Figure 3 This is a cross-sectional view of the main shell of this application;

[0031] Figure 4 For this application, the power mechanism explodes;

[0032] Figure 5 This is the power mechanism operation diagram for this application;

[0033] Figure 6 This is a three-dimensional side view of this application.

[0034] Reference numerals: 1. main housing;

[0035] 2. Power mechanism; 21. First rotating mechanism; 21a. Support rod; 21b. First rotating plate; 21c. First connecting rod; 21d. Spur gear; 21e. Second rotating plate; 21f. Second connecting rod; 22. Second rotating mechanism; 23. Gear belt; 24. Servo motor; 25. Rotating seat;

[0036] 3. Moving seat; 4. Cleaning plate; 5. Limiting plate; 6. Side groove; 7. Screen plate; 8. Screen hole; 9. First discharge port; 10. Second discharge port; 11. Vibrating column; 12. Fixed column; 13. Vibrating motor; 14. Transmission rod; 15. Feed port. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1 —6 Provide further details of this application.

[0038] The embodiment of the present application discloses an inclined vibrating screen.

[0039] Example 1

[0040] Reference Figure 1 , 2 , an inclined vibrating screen comprises a main shell 1, a cavity is provided in the middle of the main shell 1, and a sieve plate 7 is fixedly provided on the bottom surface of the cavity, the surface of the sieve plate 7 is trapezoidal, a plurality of sieve holes 8 are arranged side by side on the surface of the sieve plate 7 (the aperture of the sieve holes 8 is set between 0.15 and 1 mm), and a plurality of rows of sieve holes 8 are arranged in an array on the surface of the sieve plate 7, and grooves are formed between the single sieve holes 8 in each row of sieve holes 8 and the through grooves are formed one by one through the grooves, a feed port 15 is provided on the top of one side of the main shell 1, one end of the feed port 15 extends out of the side surface of the main shell 1 in a funnel shape, the bottom of the feed port 15 extends into the cavity of the main shell 1 and is fixedly connected to one side of the sieve plate 7, a limiting plate 5 is fixedly provided on the other side of the inner surface of the main shell 1 relative to the feed port 15, the surface of the limiting plate 5 is trapezoidal, and is consistent with the trapezoidal amplitude of the sieve plate 7, and the side surface of the limiting plate 5 away from the main shell 1 is fixedly connected to one side of the sieve plate 7.

[0041] It is worth mentioning that the part of the bottom of the feed port 15 protruding out of the cavity of the main shell 1, as well as the trapezoidal plate surface groove part of the limiting plate 5, form a shielding space with the bottom surface of the cavity, shielding the part of the power mechanism 2 located in the shielding space, preventing the material from falling into the power mechanism 2 when being poured and causing damage to the device.

[0042] By adopting the above technical solution, the material is poured into the feed port 15 from the funnel, and the material falls from the feed port 15 to the surface of the sieve plate 7, and the impurities inside the material are intercepted by the sieve holes 8, and the screened material falls downward from the sieve holes 8.

[0043] Reference Figure 2 , 4 5. The bottom surface of the main shell 1 cavity and the bottom of the trapezoidal plate surface of the sieve plate 7 form a trapezoidal space, and a power mechanism 2 is arranged in the trapezoidal space. The power mechanism 2 includes a first rotating mechanism 21 rotatably arranged in the main shell 1 cavity and located on the side walls on both sides of the trapezoidal space, and a second rotating mechanism 22 is rotatably arranged on the side walls of the main shell 1 cavity and located on one side of the first rotating mechanism 21.

[0044] It should be noted that, since the structural configuration of the second rotating mechanism 22 is consistent with that of the first rotating mechanism 21 , the subsequent description will focus on the first rotating mechanism 21 and the second rotating mechanism 22 will be described as a supplement.

[0045] By adopting the above technical solution, the first rotating mechanism 21 and the second rotating mechanism 22 are located at the bottom of the sieve plate 7, and the rotating control movable seat 3 rotates along the trapezoidal space at the bottom of the sieve plate 7, so as to clean the sieve holes 8.

[0046] Reference Figure 2 , 4 The first rotating mechanism 21 includes a first connecting rod 21c rotatably arranged on the side surface of the shielding space formed by the main shell 1 and the feed port 15, and the first rotating plate 21b is fixedly connected to the end of the first connecting rod 21c away from the main shell 1, and a through hole is opened on the end surface of the first rotating plate 21b away from the first connecting rod 21c, and a support rod 21a is rotatably arranged in the through hole, and a second rotating plate 21e is rotatably arranged on the other end surface of the support rod 21a, a through hole is opened on the side of the second rotating plate 21e away from the support rod 21a, and a second connecting rod 21f is fixed in the through hole, and the end of the second connecting rod 21f away from the second rotating plate 21e is fixedly connected to the top surface of the rotating seat 25, and the bottom of the rotating seat 25 is fixedly connected to one side surface of the cavity of the main shell 1.

[0047] By adopting the above technical scheme, the first connecting rod 21c rotates, thereby driving the first rotating plate 21b to rotate with the connection point of the first connecting rod 21c as the fulcrum. When the first rotating plate 21b rotates, it synchronously drives the support rod 21a to rotate with the first connecting rod 21c as the center. The other end of the support rod 21a is connected to the second rotating plate 21e. At the same time, the second rotating plate 21e is fixedly connected to the second connecting rod 21f. The second connecting rod 21f is rotatably connected to the rotating seat 25 to form a fulcrum. When the support rod 21a transmits the rotational force, the second rotating plate 21e is rotated with the connection point of the second connecting rod 21f as the center. The first rotating plate 21b and the second rotating plate 21e are connected to the two ends of the support rod 21a, which plays a supporting role while ensuring the normal rotation of the support rod 21a.

[0048] Reference Figure 4 , 5 The power mechanism 2 also includes a spur gear 21d fixedly mounted on the middle surface 21c of the first connecting rod 21c. The tooth surfaces of the spur gears 21d of the first rotating mechanism 21 and the second rotating mechanism 22 are meshed with an adaptive gear belt 23. A servo motor 24 is fixedly mounted on the side surface of the main housing 1 at the bottom of the feed port 15. The output shaft of the servo motor 24 movably passes through the side wall of the main housing 1 and is fixed to the end of the first connecting rod 21c.

[0049] By adopting the above technical solution, the servo motor 24 is fixed to the first connecting rod 21c, so that when the servo motor 24 is started, the first connecting rod 21c is controlled to rotate, thereby providing a power source for the first rotating mechanism 21. At the same time, a spur gear 21d is fixed on the surface of the first connecting rod 21c of the first rotating mechanism 21 and the second rotating mechanism 22, and the gear belt 23 forms a linkage between the two spur gears 21d. When the first connecting rod 21c of the first rotating mechanism 21 rotates, the first connecting rod 21c of the second rotating mechanism 22 is driven to rotate synchronously.

[0050] Reference Figure 2 , 3 A moving seat is fixedly inserted on the surface of the support rod 21a of the first rotating mechanism 21 and the second rotating mechanism 22. The length of the moving seat 3 is consistent with the sieve plate 7 and the center is aligned. A plurality of cleaning plates 4 are fixedly arranged on the upper end surface of the moving seat 3 (the number of cleaning plates 4 is consistent with the number of rows of sieve holes 8, and the plurality of cleaning plates 4 are aligned one by one with the plurality of rows of sieve holes 8). The width of the cleaning plate 4 is 0.05 to 0.1 mm smaller than the diameter of the sieve hole 8, and the top of the cleaning plate 4 is trapezoidal. The upper end surface of the moving seat 3 is located between the plurality of cleaning plates 4 and is provided with a trapezoidal protrusion.

[0051] By adopting the above technical solution, the movable seat 3 is driven by the first rotating mechanism 21 and the second rotating mechanism 22 to move at the bottom of the sieve plate 7. When the movable seat 3 moves, the cleaning plate 4 is synchronously inserted into the sieve hole 8 and rotated and plugged along the side groove 6 of the sieve hole 8, so as to sweep away the debris in the sieve hole 8. When the screened material falls into the surface of the movable seat 3 through the sieve hole 8, the movable seat 3 is synchronously vibrated by the main shell 1, and the material is vibrated along the trapezoidal protrusion to the bottom of the cavity of the main shell 1.

[0052] Reference Figure 6 , side grooves 6 are provided at the bottom of the trapezoidal surface of the sieve plate 7 on both sides inside the main shell 1, and the side grooves 6 and the trapezoidal surface of the sieve plate 7 form a slide groove, one end of the side groove 6 penetrates the side wall of the main shell 1 and communicates with the outside, and a first discharge port 9 is fixed in the through holes of the two side grooves 6, and the first discharge port 9 has a funnel-shaped mouth surface, and a groove is provided at the bottom of the side of the main shell 1 between the two first discharge ports 9, the groove connects the inside and outside of the main shell 1 cavity, and a second discharge port 10 is fixed on the surface of the groove, and the second discharge port 10 has a funnel-shaped mouth surface

[0053] It should be noted that the bottom of the first discharge port 9 and the second discharge port 10 should be provided with a collecting mechanism for collecting materials and debris, which will not be described in detail due to conventional technology.

[0054] By adopting the above technical solution, the material that falls into the bottom of the cavity of the main shell 1 through the sieve plate 7 is discharged from the second discharge port 10 to the outside of the device for storage. At the same time, the debris cleaned out from the sieve hole 8 by the cleaning plate 4 slides along the trapezoidal surface of the sieve plate 7 into the side grooves 6 on both sides, and then enters the first discharge port 9 through the side grooves 6, and is finally discharged to the outside for collection.

[0055] Reference Figure 1 , 2 5. Vibration columns 11 are fixedly provided at both ends of the two side surfaces of the main shell 1. The upper end block of the vibration column 11 is fixedly connected to the main shell 1, and the lower end block of the vibration column 11 is fixedly connected to the bottom surface. The upper end block and the lower end block of the vibration column 11 are connected on opposite sides by a spring. A fixed column 12 is fixedly provided between the two vibration columns 11 in the middle of the side wall of the main shell 1. The bottom of the fixed column 12 is fixedly connected to the bottom surface, and a vibration motor 13 is fixedly provided on the top of the fixed column 12. Transmission rods 14 are fixedly provided on both sides of the middle of the inner wall of the main shell 1. The vibration end of the vibration motor 13 movably passes through the main shell 1 and is fixedly connected to one end of the transmission rod 14.

[0056] It should be noted that the vibration column 11 and the fixing column 12 are both vertically installed on the bottom surface, and the installation angle between the main housing 1 and the vibration column 11 and the fixing column 12 is set to be inclined at 10°.

[0057] By adopting the above technical solution, the vibration motor 13 is connected to the transmission rod 14, and the transmission rod 14 is connected to the two sides of the inner wall of the main shell 1. When the vibration motor 13 transmits vibration force, the vibration force is transmitted to the two ends of the main shell 1 through the transmission rod 14, thereby improving the vibration effect. At the same time, the main shell 1 forms a 10° inclination with the bottom surface, which cooperates with the vibration force of the vibration motor 13 to improve the screening efficiency.

[0058] Among them, the device also includes a microcomputer, a compiler, a servo motor 24 and a vibration motor 13, which are all existing technologies, and their structural principles are not described in detail.

[0059] The implementation principle of an inclined vibrating screen in an embodiment of the present application is as follows: when using the device, before pouring in materials, the vibration motor 13 is powered on and started, and the vibration motor 13 causes the main shell 1 to vibrate. When the main shell 1 vibrates, the materials are poured in from the feed port 15. Due to the inclined state of the main shell 1, the poured materials fall from the feed port 15 onto the surface of the sieve plate 7, and the sieve plate 7 vibrates synchronously with the vibration of the main shell 1. During the vibration process, the materials are dispersed, and the debris in the materials is intercepted and clamped in the holes by the sieve holes 8, and the required materials fall from the sieve holes 8 onto the surface of the moving plate to complete the separation of the debris.

[0060] When the material is screened, the microcomputer sends a signal to the compiler to control the servo motor 24 to start, and the servo motor 24 controls the first connecting rod 21c to rotate, and the first connecting rod 21c rotates the first rotating plate 21b, and the first rotating plate 21b rotates the support rod 21a synchronously, and the other end of the support rod 21a rotates around the second connecting rod 21f through the second rotating plate 21e, so that the support rod 21a as a whole rotates around the first connecting rod 21c and the second connecting rod 21f. At the same time, the first connecting rod 21c is meshed with the gear belt 23 through the spur gear 21d, and the support rod 21a of the second rotating mechanism 22 is controlled to rotate synchronously with the above rotation, so that the movable seat 3 is located at the bottom of the screen plate 7 and rotates.

[0061] When the movable seat 3 moves, the cleaning plate 4 is repeatedly inserted into and removed from the sieve hole 8, thereby pushing out the debris in the sieve hole 8. The pushed-out debris slides from the surface of the sieve plate 7 to the side groove 6, and then enters the externally arranged collecting device from the first discharge port 9, thereby completing the cleaning and collection of the debris.

[0062] When the movable seat 3 rotates and moves, the material falling from the sieve hole 8 to the surface of the movable seat 3 is subjected to the vibration force of the vibration motor 13 and the throwing force when the movable seat 3 rotates, and slides from the inclined surface of the movable seat 3 to the bottom of the cavity of the main shell 1. The material is affected by gravity and slides to the second discharge port 10, and then enters the external collection device, thereby completing the collection of the material.

[0063] 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 inclined vibrating screen, characterized in that: It comprises a main shell (1), a sieve plate (7) is fixedly arranged at the bottom of the cavity of the main shell (1), and a power mechanism (2) is arranged between the bottom of the cavity of the main shell (1) and the sieve plate (7); The power mechanism (2) comprises a rotating seat (25) fixedly arranged on one side of the cavity of the main housing (1), and a first rotating mechanism (21) and a second rotating mechanism (22) are rotatably arranged at both ends of the side surface of the rotating seat (25), and the first rotating mechanism (21) and the second rotating mechanism (22) have the same structure.

2. The inclined vibrating screen according to claim 1, characterized in that: The first rotating mechanism (21) comprises a second connecting rod (21f) rotatably connected to one side of the rotating seat (25); a second rotating plate (21e) is fixedly connected to one end of the surface of the second connecting rod (21f); and a support rod (21a) is rotatably connected to one end of the side surface of the second rotating plate (21e) away from the second connecting rod (21f).

3. The inclined vibrating screen according to claim 2, characterized in that: One end of the support rod (21a) away from the second connecting rod (21f) is rotatably connected to the first rotating plate (21b), and one end of the side surface of the first rotating plate (21b) away from the support rod (21a) is fixedly connected to the first connecting rod (21c), and one end of the first connecting rod (21c) away from the first rotating plate (21b) is rotatably connected to the inner wall of the main shell (1), and a spur gear (21d) is fixedly provided in the middle of the surface of the first connecting rod (21c).

4. The inclined vibrating screen according to claim 1, characterized in that: The power mechanism (2) further comprises a gear belt (23) meshingly arranged on the surface of a spur gear (21d) of the first rotating mechanism (21) and the second rotating mechanism (22); a servo motor (24) is fixedly arranged on one side of the main housing (1); an output shaft of the servo motor (24) passes through the main housing (1) and is fixedly connected to the first connecting rod (21c).

5. The inclined vibrating screen according to claim 1, characterized in that: A movable seat (3) is inserted and fixedly provided on the surface of the support rod (21a) of the first rotating mechanism (21) and the second rotating mechanism (22), and a plurality of cleaning plates (4) are fixedly provided on the upper end surface of the movable seat (3).

6. The inclined vibrating screen according to claim 1, characterized in that: A limiting plate (5) is fixedly provided on the inner wall of the main shell (1) on one side surface relative to the sieve plate (7); the side surface of the limiting plate (5) is fixedly connected to one end of the sieve plate (7); and a plurality of sieve holes (8) are arranged in an array on the surface of the sieve plate (7).

7. The inclined vibrating screen according to claim 1, characterized in that: Side grooves (6) are provided on both sides of the inner wall of the main shell (1), and first discharge ports (9) are provided on the outer surface of the main shell (1) at positions relative to the two side grooves (6). The two first discharge ports (9) respectively penetrate the main shell (1) and are connected to the two side grooves (6) one by one.

8. The inclined vibrating screen according to claim 1, characterized in that: A second discharge port (10) is provided on the inner wall surface of the main shell (1) at the bottom of the rotating seat (25), and a feed port (15) is provided on the side surface of the main shell (1) away from the second discharge port (10).

9. The inclined vibrating screen according to claim 1, characterized in that: Vibration columns (11) are fixedly provided on both end surfaces of both sides of the main housing (1); a fixing column (12) is fixedly provided on one side of the main housing (1) between the two vibration columns (11); a vibration motor (13) is fixedly provided on the top of the fixing column (12); a vibration end of the vibration motor (13) movably passes through the side wall and is located in the cavity of the main housing (1); a transmission rod (14) is fixedly provided on the surface of the portion of the vibration motor (13) located in the cavity of the main housing; and an end of the transmission rod (14) away from the vibration motor (13) is movably connected to the inner wall of the main housing (1).

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