Scissor motor with heat dissipation function

Abstract

The utility model discloses a scissors motor with a heat dissipation function, which comprises a scissors motor main body, a heat dissipation part comprises a first belt wheel arranged on an output shaft of the scissors motor main body, a second belt wheel is arranged in a shell, a first belt is arranged between the first belt wheel and the second belt wheel, an air inlet and an air outlet are arranged on the inner wall of the shell, and the air inlet and the air outlet are communicated with the first belt. A fan is arranged in the air inlet, a gear piece is arranged on one side of an input shaft of the fan, and the gear piece is used for transmitting power of the second belt wheel to drive the fan to rotate. The shears machine can effectively discharge heat generated when the shears machine motor works and reduce the temperature in the shears machine, when a worker normally uses the shears machine to conduct shearing work, the shears machine motor works to dissipate heat and drives the fan to rotate rapidly at the same time, and therefore a large amount of air is sucked into the external environment, and the heat dissipation effect is good. And heat in the scissors machine is discharged from the air outlet, so that heat dissipation of the scissors machine is facilitated when a worker uses the scissors machine to work.

Description

Technical Field

[0001] The utility model relates to the technical field of scissor machine motors, in particular to a scissor machine motor with a heat dissipation function. Background Art

[0002] The scissors machine is a handheld electric tool that uses electricity as energy, the scissors machine motor provides driving force, and drives the working head to perform shearing operations through a transmission mechanism. The scissors machine consists of a motor, a casing, a gear box, an eccentric shaft-connecting rod mechanism, a switch and a cutter, and is commonly used to cut branches, clothing, etc.

[0003] However, during use, the scissors machine motor generates heat when it rotates continuously, and because the scissors are fixed by screws, the air circulation inside the scissors machine is inconvenient, and the heat generated by the scissors machine motor cannot be quickly dissipated, causing the overall temperature of the scissors machine to rise. The electric energy of the scissors machine motor is generally a battery. Since the battery is easily affected by temperature changes, the life and number of uses of the battery are reduced, which affects the normal use of the scissors machine by workers. To this end, we propose a scissors machine motor with a heat dissipation function. Utility Model Content

[0004] The utility model aims to provide a scissor machine motor with a heat dissipation function, which solves the problem that the internal space of the scissor machine is closed, the heat generated by the scissor machine motor cannot be effectively dissipated, and the normal use of the scissor machine by workers is affected.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A scissors machine motor with a heat dissipation function comprises a scissors machine motor body and a shell arranged on one side of the scissors machine motor body, characterized in that a heat dissipation portion is provided between the scissors machine motor body and the shell, the heat dissipation portion comprises a first pulley arranged on an output shaft of the scissors machine motor body, a second pulley is provided inside the shell, a belt is provided between the first pulley and the second pulley, an air inlet and an air outlet are provided on the inner wall of the shell, a fan is provided inside the air inlet, a gear member is provided on one side of the fan input shaft, and the gear member is used to transmit power of the second pulley to drive the fan to rotate.

[0007] A further improvement is that the gear member includes buckle assemblies arranged on both sides of the second pulley, and gear 1 and the third pulley are respectively arranged on opposite sides of the two buckle assemblies, a rotating rod is arranged on the inner wall of the shell, a first bevel gear is arranged at one end of the rotating rod, a second bevel gear is meshed on the surface of the first bevel gear, and one end of the second bevel gear is fixed in the fan input shaft; a second gear is meshed on the surface of the first gear, the rotating rod penetrates and is fixed inside the second gear, a fourth pulley is arranged on the surface of one end of the rotating rod close to the third pulley, and a belt 2 is arranged between the fourth pulley and the third pulley;

[0008] The buckle assembly is used to drive the second pulley to rotate only through gear 2 and gear 1 when the rotating rod rotates forward, and to drive the second pulley to rotate only through the fourth pulley and the third pulley when the rotating rod rotates reversely.

[0009] A further improvement is that the buckle assembly includes a rectangular groove fixedly arranged on the inner wall on both sides of the second pulley, the inner wall of the rectangular groove is provided with a rectangular plate, one end of the rectangular plate is rotatably connected to the inside of the rectangular groove, a spring for pushing the rectangular plate to rotate outward is provided inside the rectangular groove, and ratchet plates are provided on the sides of gear 1 and the third pulley, the ratchet grooves in the two ratchet plates are oriented in opposite directions, and the two rectangular plates are oriented in the same direction as the ratchet grooves in their corresponding ratchet plates.

[0010] A further improvement is that a protective cover is provided on the side of the air inlet and the air outlet away from the shell, and the fan is located on the side of the air inlet away from the protective cover.

[0011] The beneficial effect of the utility model is that the scissors machine can effectively discharge the heat generated by the scissors machine motor when it is working and reduce the temperature inside the scissors machine. When the worker uses the scissors machine normally for shearing work, the scissors machine motor dissipates heat while working and drives the fan to rotate quickly, thereby sucking in a large amount of wind from the external environment and discharging the heat inside the scissors machine from the air outlet, which is beneficial for the worker to dissipate heat while using the scissors machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the heat dissipation structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the gear parts of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the buckle assembly of the utility model.

[0016] In the figure: 1. Scissors machine motor body; 2. Shell; 3. Heat dissipation part; 4. First pulley; 5. Second pulley; 6. Belt 1; 7. Air inlet; 8. Air outlet; 9. Fan; 10. Gear member; 11. Buckle assembly; 12. Gear 1; 13. Third pulley; 14. Rotating rod; 15. First bevel gear; 16. Second bevel gear; 18. Rectangular plate; 20. Ratchet plate; 21. Gear 2; 22. Fourth pulley; 23. Belt 2; 24. Protective cover. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Combination Figure 1-4 As shown, a scissors machine motor with a heat dissipation function comprises a scissors machine motor body 1, and a shell 2 arranged on one side of the scissors machine motor body 1, a heat dissipation portion 3 is arranged between the scissors machine motor body 1 and the shell 2, the heat dissipation portion 3 comprises a first pulley 4 arranged on the output shaft of the scissors machine motor body 1, a second pulley 5 is arranged inside the shell 2, a belt 6 is arranged between the first pulley 4 and the second pulley 5, an air inlet 7 and an air outlet 8 are arranged on the inner wall of the shell 2, a fan 9 is arranged inside the air inlet 7, a gear member 10 is arranged on one side of the input shaft of the fan 9, and the gear member 10 is used to transmit the power of the second pulley 5 to drive the fan 9 to rotate;

[0019] When in use, workers will hold the scissors machine to cut objects, and when working continuously, the scissors machine motor will emit more heat, which is accumulated inside the scissors machine. When the worker controls the scissors machine motor body 1 to rotate back and forth once, the output shaft of the scissors machine motor body 1 drives the first pulley 4 to rotate synchronously, and the second pulley 5 rotates back and forth synchronously once through the action of belt 1 6. During the reciprocating rotation, the second belt will continue to drive the gear part 10 to move in a certain direction once, so that the fan 9 continues to rotate and the wind from the external environment is sucked into the scissors machine through the air inlet 7, and the continuous wind will push the heat accumulated inside the scissors machine to the air outlet 8, thereby quickly reducing the heat generated by the scissors machine motor, which is conducive to maintaining the constant temperature inside the scissors machine and improving the work efficiency of workers when using the scissors machine to cut objects.

[0020] Preferably, the gear member 10 includes a buckle assembly 11 arranged on both sides of the second pulley 5, and a gear 12 and a third pulley 13 are respectively arranged on opposite sides of the two buckle assemblies 11. A rotating rod 14 is arranged on the inner wall of the housing 2, and a first bevel gear 15 is arranged at one end of the rotating rod 14. A second bevel gear 16 is meshed with the surface of the first bevel gear 15, and one end of the second bevel gear 16 is fixedly arranged in the input shaft of the fan 9. A gear 21 is meshed with the surface of the gear 12, and the rotating rod 14 penetrates and is fixed inside the gear 21. The rotating rod 14 is close to the third pulley 13. A fourth pulley 22 is provided on one end surface, and a belt two 23 is provided between the fourth pulley 22 and the third pulley 13. When the gear one 12 rotates, it will mesh and drive the gear two 21 to rotate. Since the rotation directions of the gear one 12 and the gear two 21 are opposite, and when the second pulley 5 is reversed, the third pulley 13 drives the fourth pulley 22 to rotate through the belt two 23, and the rotation directions of the third pulley 13 and the fourth pulley 22 are the same. It can be known that when the second pulley 5 rotates back and forth, the rotating rod 14 always rotates in a directional manner, which is beneficial to maintain the continuous rotation of the fan 9.

[0021] The buckle assembly 11 is used to drive the second pulley 5 to rotate only through the gear 2 21 and the gear 1 12 when the rotating rod 14 rotates forward, and to drive the second pulley 5 to rotate only through the fourth pulley 22 and the third pulley 13 when the rotating rod 14 rotates reversely.

[0022] When the second belt rotates back and forth once, the second belt will drive the two buckle assemblies 11 to move respectively, so that the two buckle assemblies 11 will actively drive the rotating rod 14 to rotate in a directional manner respectively, so that the first bevel gear 15 drives the second bevel gear 16 and the fan 9 to rotate, and a large amount of wind is absorbed from the external environment through the air inlet 7, which is beneficial for the scissors machine motor body 1 to absorb cold air from the external environment and blow away the heat accumulated inside the scissors machine during operation, so that workers can use the scissors machine to perform shearing work.

[0023] Preferably, the buckle assembly 11 includes a rectangular groove fixedly arranged on the inner wall of both sides of the second pulley 5, a rectangular plate 18 is arranged on the inner wall of the rectangular groove, one end of the rectangular plate 18 is rotatably connected to the inside of the rectangular groove, a spring for pushing the rectangular plate 18 to rotate outward is arranged inside the rectangular groove, and a ratchet disk 20 is arranged on the side of the gear 12 and the third pulley 13, the ratchet grooves in the two ratchet disks 20 are oriented in opposite directions, and the two rectangular plates 18 are oriented in the same direction as the ratchet grooves in their corresponding ratchet disks 20;

[0024] When the second pulley 5 reciprocates, one reciprocating motion is divided into two motions, that is, when the second pulley 5 rotates once, it will drive the rectangular plates 18 on both sides to rotate. Since one end of the rectangular plate 18 is supported by a spring, and the other end rotates inside the rectangular groove, and the rectangular plates 18 on both sides have different directions, the rectangular plate 18 on one side can push the ratchet groove in the corresponding ratchet disk 20 to rotate, while the rectangular plate 18 on the other side is in opposite directions to the ratchet groove, so that the surface of the rectangular plate 18 is in contact with the ratchet groove on the surface of the ratchet disk 20. The rectangular plate 18 is squeezed and slided, and then the rectangular plate 18 slides on the surface of the ratchet disk 20. Similarly, when the second pulley 5 performs the second movement, the second pulley 5 reverses, so that the rectangular plate 18 that originally slid on the surface of the ratchet disk 20 drives the ratchet disk 20 to rotate, and the rectangular plate 18 that drives the ratchet disk 20 to rotate on the other side slides on the surface of the ratchet disk 20. Since the fourth pulley 22 and the third pulley 13 are driven in the same direction, and the gear two 21 and the gear one 12 are driven in the opposite direction, the second pulley 5 is finally rotated in the same direction all the time.

[0025] Preferably, a protective cover 24 is provided on the side of the air inlet 7 and the air outlet 8 away from the shell 2, and the fan 9 is located on the side of the air inlet 7 away from the protective cover 24, which can reduce the debris in the external environment from entering the interior of the scissors machine and affecting the scissors machine motor.

[0026] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A scissors motor with heat dissipation function, comprising a scissors motor body (1), and a housing (2) arranged on one side of the scissors motor body (1), characterized in that: A heat dissipation portion (3) is provided between the scissor machine motor body (1) and the housing (2), the heat dissipation portion (3) comprising a first pulley (4) arranged on the output shaft of the scissor machine motor body (1), a second pulley (5) is provided inside the housing (2), a belt (6) is provided between the first pulley (4) and the second pulley (5), an air inlet (7) and an air outlet (8) are provided on the inner wall of the housing (2), a fan (9) is provided inside the air inlet (7), a gear member (10) is provided on one side of the input shaft of the fan (9), and the gear member (10) is used to transmit power of the second pulley (5) to drive the fan (9) to rotate.

2. The scissors machine motor with heat dissipation function according to claim 1, characterized in that: The gear member (10) comprises buckle assemblies (11) arranged on both sides of the second pulley (5), and a gear 1 (12) and a third pulley (13) are respectively arranged on opposite sides of the two buckle assemblies (11); a rotating rod (14) is arranged on the inner wall of the housing (2), and a first bevel gear (15) is arranged at one end of the rotating rod (14); a second bevel gear (16) is arranged at one end of the input shaft of the fan (9), and the second bevel gear (16) and the first bevel gear (15) are meshed with each other; a gear 2 (21) is arranged on the surface of the rotating rod (14), and the gear 2 (21) and the gear 1 (12) are meshed with each other; a fourth pulley (22) is arranged on the surface of one end of the rotating rod (14) close to the third pulley (13), and a belt 2 (23) is arranged between the fourth pulley (22) and the third pulley (13); The buckle assembly (11) is used to drive the second pulley (5) to rotate only through the second gear (21) and the first gear (12) when the rotating rod (14) rotates forward, and to drive the second pulley (5) to rotate only through the fourth pulley (22) and the third pulley (13) when the rotating rod (14) rotates reversely.

3. The scissors machine motor with heat dissipation function according to claim 2, characterized in that: The buckle assembly (11) comprises a rectangular groove fixedly arranged on the inner wall of both sides of the second pulley (5), the inner wall of the rectangular groove is provided with a rectangular plate (18), one end of the rectangular plate (18) is rotatably connected to the inside of the rectangular groove, and a spring for pushing the rectangular plate (18) to rotate outward is provided inside the rectangular groove, and the side surfaces of the gear 1 (12) and the third pulley (13) are both provided with a ratchet disk (20), the ratchet grooves in the two ratchet disks (20) are oriented in opposite directions, and the directions of the two rectangular plates (18) are respectively the same as the directions of the ratchet grooves in their corresponding ratchet disks (20).

4. The scissors machine motor with heat dissipation function according to claim 1, characterized in that: A protective cover (24) is provided on the side of the air inlet (7) and the air outlet (8) away from the housing (2), and the fan (9) is located on the side of the air inlet (7) away from the protective cover (24).

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