Treadmill with motor cooling device

Abstract

The present invention discloses a treadmill with a motor cooling device, which belongs to the technical field of treadmills and comprises a treadmill main body, wherein the treadmill main body is composed of a chassis, handrails and a running belt, a heat sink is arranged on the top of the chassis to convey cold air into the chassis, a plurality of heat dissipation openings are evenly arranged on the side wall of the chassis away from the running belt, support rods are symmetrically fixed on the top wall of the chassis, an L-shaped rod is fixed on the top of the support rod, a pull rope is connected to the L-shaped rod, and a baffle is fixed to one end of two of the pull ropes; a mounting rod is fixed on the side wall of the chassis close to the running belt, and a rotating shaft is rotatably installed on one end of the mounting rod; when the treadmill is not in use, dust can be prevented from entering the chassis, and when the treadmill is in normal use, the heat dissipation opening is no longer blocked, and the heat dissipation of the motor is accelerated and the service life of the motor is extended by cooperating with the heat sink.

Description

Technical Field

[0001] The invention relates to the technical field of treadmills, and in particular to a treadmill with a motor cooling device. Background Art

[0002] Treadmills are common fitness equipment in homes and gyms. They are modified based on the principle of conveyor belts. During the use of traditional treadmills, the motor works continuously and simply relies on the heat dissipation vents on the chassis. The heat generated is often difficult to dissipate effectively, which not only affects the normal operation and service life of the equipment, but may also cause safety hazards to users.

[0003] At present, some treadmills are equipped with cooling devices. For example, Chinese patent CN207024486U discloses a treadmill with a cooling device, including a treadmill body, a treadmill motor case equipped with a motor is arranged at one end of the treadmill body, and a cooling device is connected to one side of the treadmill motor case, the cooling device includes a filter device for filtering and cooling the air containing dust and an exhaust mechanism connected between the filter device and the treadmill motor case, the filter device includes a box body and a dust collection mechanism and a spray mechanism arranged in the box body, an air inlet is opened near the bottom of the box body, the air containing dust enters the filter device from the air inlet, an air outlet is opened at the top of the box body, the air outlet is connected to the exhaust mechanism through an air intake pipe, the exhaust mechanism is connected to the side wall of the treadmill motor case through an air outlet pipe, the dust collection mechanism is located between the air inlet and the air outlet, and the spray mechanism is arranged between the dust collection mechanism and the air outlet;

[0004] Although the above patent can cool down the treadmill, it still has certain defects: the device achieves the purpose of cooling by air cooling the motor in the treadmill chassis, but the heat dissipation port of the chassis itself is in an open state for a long time, which is easy to accumulate dust. When the treadmill is not working, dust can easily enter the chassis and adhere to the motor, affecting the normal heat dissipation of the treadmill. Summary of the invention

[0005] The purpose of the present invention is to provide a treadmill with a motor cooling device to solve the following technical problems: the heat dissipation port of the casing itself is in an open state for a long time, which is easy to accumulate dust. When the treadmill is not working, dust is also easy to enter the inside of the casing and adhere to the motor, affecting the normal heat dissipation of the treadmill.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A treadmill with a motor cooling device comprises a treadmill body, the treadmill body is composed of a chassis, handrails and a running belt, a heat sink is arranged on the top of the chassis to deliver cold air into the chassis, a plurality of heat dissipation ports are evenly arranged on the side wall of the chassis away from the running belt, support rods are symmetrically fixed on the top wall of the chassis, an L-shaped rod is fixed on the top of the support rod, a pull rope is connected to the L-shaped rod, and a baffle is fixed to one end of two pull ropes;

[0008] A mounting rod is fixed on the side wall of the chassis close to the running belt, a rotating shaft is rotatably mounted on one end of the mounting rod, rollers are fixedly mounted on both ends of the rotating shaft, and the rollers are in contact with the surface of the running belt, and a transmission mechanism is arranged between the rotating shaft and the L-shaped rod, so that the position of the baffle changes as the running belt rotates.

[0009] As a further solution of the present invention: a fan is installed in the heat dissipation box, an opening is formed on the top of the heat dissipation box, and a dustproof net is fixed to the opening by a buckle.

[0010] As a further solution of the present invention: the L-shaped rod is hollow inside, and the transmission mechanism includes a transmission block movably arranged inside the L-shaped rod, one end of the pull rope extends into the L-shaped rod and is connected to the transmission block, the end of the transmission block away from the pull rope is connected to an elastic steel sheet, one end of the elastic steel sheet is connected to a movable rod, one end of the movable rod passes through the L-shaped rod and is connected to a force block, a plurality of guide columns are fixed inside the L-shaped rod, the elastic steel sheet is located between the plurality of guide columns, two turntables are symmetrically installed on the rotating shaft, the turntable is provided with protrusions, and the two protrusions are respectively located directly below the two force blocks.

[0011] As a further solution of the present invention: a slow rebound rod is symmetrically arranged on the side wall of the transmission block away from the elastic steel sheet, and one end of the slow rebound rod is fixedly connected to the side wall of the L-shaped rod.

[0012] As a further solution of the present invention: the slow rebound rod is made of memory foam.

[0013] As a further solution of the present invention: baffles are symmetrically arranged inside the L-shaped rod near one end of the pull rope, and the two baffles are located between the two slow rebound rods.

[0014] As a further solution of the present invention: a groove is provided on the turntable, a slider is provided on the side of the groove close to the opening, slide grooves are provided on both sides of the protrusion, the slider is slidably connected to the slide grooves, a receiving groove is provided on the protrusion, a magnetic block is provided on the side of the receiving groove close to the opening, a support rod is fixed in the groove, one end of the support rod is located in the receiving groove, and an adsorption block is provided at the end of the support rod.

[0015] As a further solution of the present invention: mounting frames are symmetrically arranged on the chassis, guide wheels are installed on the two mounting frames, the two pull ropes pass through the two guide wheels respectively and are fixedly connected to the baffle, L-shaped limit blocks are symmetrically arranged on the side wall of the chassis away from the running belt, and the baffle is located between the two limit blocks.

[0016] Beneficial effects of the present invention:

[0017] (1) The present invention provides a heat dissipation box to convey cold air into the chassis. When the treadmill is not in use, the baffle shields the heat dissipation openings on the chassis, thereby preventing dust from entering the chassis through the heat dissipation openings when the treadmill is not in use. When the treadmill is in use, the rotation of the running belt drives the roller to rotate, and the transmission mechanism is used to lower the baffle for a certain distance, so that part of the heat dissipation opening is normally exposed to the air. When the running speed is slow and the motor power is small, the heat generated is relatively small. By extending the contact time between the cold air and the motor, the heat can be effectively removed;

[0018] (2) The present invention is provided with an L-shaped rod, a pull rope, a transmission block, an elastic steel sheet, a rotating shaft, a rotating disk and a protrusion. The rotating disk and the protrusion rotate together with the rotating shaft. The protrusion squeezes the force-bearing block to raise the force-bearing block and the movable rod. The elastic steel sheet pushes the movable block and the pull rope to move, so that the baffle can be lowered. A slow rebound rod is provided. By utilizing the slow rebound characteristic of the slow rebound rod, the baffle can be automatically reset after the treadmill stops working. No manual operation is required. The invention is simple and effective.

[0019] (3) The present invention sets the turntable and the protrusion as a sliding connection. The power of the treadmill motor is different under different conditions. The faster the running speed, the greater the motor power, the faster the speed of the running belt, and the more heat is generated. At this time, the speed of the roller is also accelerated, the centrifugal force is increased, and the protrusion is thrown out, which will push the force-bearing block and the movable rod to rise a greater distance. The heat dissipation port is completely exposed, and the cold air in the chassis can carry the heat and be discharged quickly, ensuring the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the box and the running belt of the present invention from a first perspective;

[0023] Figure 3 is a schematic structural diagram of the box and the running belt of the present invention from a second viewing angle;

[0024] Figure 4 It is a structural schematic diagram of the heat dissipation port of the present invention;

[0025] Figure 5It is a schematic diagram of the structure of the L-shaped rod and the rotating shaft of the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the L-shaped rod of the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of the turntable and the protrusion of the present invention.

[0028] In the figure: 1. chassis; 2. heat sink; 3. dust screen; 4. heat dissipation port; 5. mounting frame; 6. guide wheel; 7. pull rope; 8. baffle; 9. L-shaped rod; 10. mounting rod; 11. shaft; 12. roller; 13. turntable; 14. bump; 15. support rod; 16. transmission block; 17. baffle bar; 18. slow rebound rod; 19. slide groove; 20. movable rod; 21. force block; 22. elastic steel sheet; 23. guide column; 24. support rod; 25. adsorption block; 26. receiving groove; 27. magnetic block; 28. slider; 29. ​​limit block.

[0029] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 5As shown, the present invention is a treadmill with a motor cooling device, including a treadmill body, which is composed of a chassis 1, handrails and a running belt. A heat sink 2 is arranged on the top of the chassis 1 to transport cold air into the chassis 1. A plurality of heat dissipation ports 4 are evenly arranged on the side wall of the chassis 1 away from the running belt. Support rods 15 are symmetrically fixed on the top wall of the chassis 1. An L-shaped rod 9 is fixed on the top of the support rod 15. A pull rope 7 is connected to the L-shaped rod 9. A baffle 8 is fixed to one end of the two pull ropes 7. A mounting rod 10 is fixed on the side wall of the chassis 1 close to the running belt. A rotating shaft 11 is rotatably mounted on one end of the mounting rod 10. Rollers 12 are fixedly mounted on both ends of the rotating shaft 11, and the rollers 12 are in contact with the surface of the running belt. A transmission mechanism is arranged between the rotating shaft 11 and the L-shaped rod 9. As the running belt rotates, the position of the baffle 8 changes. A fan is installed in the heat sink 2. An opening is provided on the top of the heat dissipation box 2, and a dustproof net 3 is fixed to the opening by a buckle; mounting frames 5 are symmetrically arranged on the chassis 1, and guide wheels 6 are installed on the two mounting frames 5. Two pull ropes 7 pass through the two guide wheels 6 and are fixedly connected to the baffle 8 respectively. L-shaped limit blocks 29 are symmetrically arranged on the side wall of the chassis 1 away from the running belt, and the baffle 8 is located between the two limit blocks 29; a baffle 8 is arranged at the heat dissipation port 4 of the chassis 1 to prevent dust from entering the chassis 1 through the heat dissipation port 4 when the treadmill is not in use. When the treadmill is in use, the rotation of the running belt drives the roller 12 to rotate, and cooperates with the transmission mechanism. When the running speed is slow and the motor power is small, the heat generated is relatively small, so that the baffle 8 is lowered for a distance, and a part of the heat dissipation port 4 is exposed. At this time, the cold air cannot be fully discharged. The heat can be effectively taken away by extending the contact time between the cold air and the motor.

[0032] See also Figure 5 and Figure 6 As shown, the L-shaped rod 9 is hollow inside, and the transmission mechanism includes a transmission block 16 movably arranged inside the L-shaped rod 9. One end of the pull rope 7 extends into the L-shaped rod 9 and is connected to the transmission block 16. The end of the transmission block 16 away from the pull rope 7 is connected to an elastic steel sheet 22, and one end of the elastic steel sheet 22 is connected to a movable rod 20. One end of the movable rod 20 passes through the L-shaped rod 9 and is connected to a force block 21. A plurality of guide columns 23 are fixed inside the L-shaped rod 9, and the elastic steel sheet 22 is located between the plurality of guide columns 23. The rotating shaft 11 is symmetrically mounted with There are two turntables 13, on which a protrusion 14 is provided, and the two protrusions 14 are respectively located directly below the two force blocks 21; when the running belt rotates, the roller 12 is driven to rotate together under the action of friction, so that the turntable 13 and the protrusion 14 rotate together, and when the protrusion 14 rotates, it squeezes the force block 21, so that the force block 21 and the movable rod 20 are raised. After the movable rod 20 is raised, the elastic steel sheet 22 is used to push the transmission block 16 to move, and the pull rope 7 moves accordingly, so that the baffle 8 can be lowered a certain distance.

[0033] See also Figure 6A slow rebound rod 18 is symmetrically arranged on the side wall of the transmission block 16 away from the elastic steel sheet 22, one end of the slow rebound rod 18 is fixedly connected to the side wall of the L-shaped rod 9, and the slow rebound rod 18 is made of memory foam. By setting the slow rebound rod 18 and utilizing the slow rebound characteristic of the memory foam, when the treadmill is not working, the baffle 8 can be automatically reset, and the slow rebound rod 18 can be used to slowly reset, which can also extend the stay time of the cold air.

[0034] See also Figure 6 The L-shaped rod 9 is symmetrically provided with a stopper 17 at one end thereof near the pull rope 7, and the two stoppers 17 are located between the two slow rebound rods 18; the stopper 17 is provided to prevent the slow rebound rod 18 from contacting the pull rope 7 after being squeezed.

[0035] See also Figure 5 , Figure 6 and Figure 7 , a groove is provided on the turntable 13, a slider 28 is provided on the side of the groove close to the opening, a slide groove 19 is provided on both sides of the protrusion 14, the slider 28 is slidably connected with the slide groove 19, a receiving groove 26 is provided on the protrusion 14, a magnetic block 27 is provided on the side of the receiving groove 26 close to the opening, a support rod 24 is fixed in the groove, one end of the support rod 24 is located in the receiving groove 26, and an adsorption block 25 is provided at the end of the support rod 24; the faster the running speed, the greater the motor power, the faster the speed of the running belt, the more heat is generated, and the speed of the roller 12 is also accelerated, the centrifugal force is increased, and the protrusion 14 is thrown out, which will push the force block 21 and the movable The rod 20 is raised to a greater distance so that the heat dissipation port 4 is completely exposed, and the cold air in the chassis 1 can carry the heat and be discharged quickly to ensure the heat dissipation effect, and when the protrusion 14 is extended, it will contact the running belt. Under the squeezing of the running belt, the protrusion 14 can automatically enter the groove, thereby achieving the effect of extending and retracting. That is to say, when the motor power is small, the application can extend the contact time between the cold air and the motor; when the motor power is large, the flow rate of the cold air is increased, and different heat dissipation methods are adopted according to the different motor powers to extend the service life of the motor. It should be noted that the magnetic block 27 is a magnet and the adsorption block 25 is an iron material.

[0036] Working principle of the present invention: baffle 8 is arranged at the heat dissipation port 4 of chassis 1, so as to prevent dust from entering chassis 1 from heat dissipation port 4 when treadmill is not in use; when treadmill is in use, if the user needs to run at a slow speed, after starting the treadmill, the motor power is small and less heat is generated, and the fan in heat dissipation box 2 is started at the same time to send external cold air into chassis 1; dustproof net 3 can prevent dust from entering chassis 1; when the running belt rotates, the roller 12 is driven to rotate together under the action of friction force, so that the turntable 13 and the protrusion 14 rotate together; when the protrusion 14 rotates, the force-bearing block 21 is squeezed, so that the force-bearing block 21 and the movable rod 20 are raised; after the movable rod 20 is raised, the transmission block 16 is pushed to move by the elastic steel sheet 22, and the pull rope 7 moves accordingly, so that the baffle 8 can be lowered for a distance, so that a part of heat dissipation port 4 is exposed to the outside; at this time, cold air cannot be fully discharged; heat can be effectively taken away by prolonging the contact time between cold air and motor;

[0037] If the user requires a faster running speed, the motor power increases, the heat generation also increases, and the speed of the treadmill also increases. Similarly, the speeds of the rollers 12 and the shaft 11 also increase, and the centrifugal force also increases. When the shaft 11 rotates, when the protrusion 14 is not in contact with the force-bearing block 21, the protrusion 14 will be thrown out of the groove, so that the magnetic block 27 contacts with the adsorption block 25. Due to the presence of the slider 28, the protrusion 14 will not separate from the turntable 13. At this time, due to the increase in the extension distance of the protrusion 14, the force-bearing block 21 and the movable rod 20 will be pushed to rise a greater distance, and the distance the baffle 8 descends will also increase accordingly. The heat dissipation port 4 is completely exposed to the outside, and the cold air in the chassis 1 can carry the heat and fully discharge it. It should be noted that the adsorption block 25 contacts the inner wall of the accommodating groove 26 of the protrusion 14. When the running belt rotates slowly, the shaft 11 rotates slowly. Under the action of friction, the protrusion 14 will not be thrown out.

[0038] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A treadmill with a motor cooling device, comprising a treadmill body, wherein the treadmill body is composed of a chassis (1), handrails and a running belt, characterized in that: A heat sink (2) is arranged on the top of the chassis (1) to deliver cold air into the chassis (1); a plurality of heat dissipation ports (4) are evenly arranged on the side wall of the chassis (1) away from the running belt; support rods (15) are symmetrically fixed on the top wall of the chassis (1); an L-shaped rod (9) is fixed on the top of the support rod (15); a pull rope (7) is connected to the L-shaped rod (9); and a baffle (8) is fixed to one end of two pull ropes (7); A mounting rod (10) is fixed on a side wall of the chassis (1) close to the running belt, a rotating shaft (11) is rotatably mounted on one end of the mounting rod (10), rollers (12) are fixedly mounted on both ends of the rotating shaft (11), and the rollers (12) are in contact with the surface of the running belt, and a transmission mechanism is provided between the rotating shaft (11) and the L-shaped rod (9), so that the position of the baffle (8) changes as the running belt rotates; The L-shaped rod (9) is hollow inside, and the transmission mechanism comprises a transmission block (16) movably arranged inside the L-shaped rod (9); one end of the pull rope (7) extends into the L-shaped rod (9) and is connected to the transmission block (16); one end of the transmission block (16) away from the pull rope (7) is connected to an elastic steel sheet (22); one end of the elastic steel sheet (22) is connected to a movable rod (20); one end of the movable rod (20) passes through the L-shaped rod (9) and is connected to a force-bearing block (21); a plurality of guide columns (23) are fixed inside the L-shaped rod (9); the elastic steel sheet (22) is located between the plurality of guide columns (23); two rotating disks (13) are symmetrically mounted on the rotating shaft (11); a protrusion (14) is provided on the rotating disk (13), and the two protrusions (14) are respectively located directly below the two force-bearing blocks (21); A slow rebound rod (18) is symmetrically arranged on the side wall of the transmission block (16) away from the elastic steel sheet (22), and one end of the slow rebound rod (18) is fixedly connected to the side wall of the L-shaped rod (9); The L-shaped rod (9) is symmetrically provided with a stopper bar (17) at one end close to the pull rope (7), and the two stopper bars (17) are located between the two slow rebound rods (18); The turntable (13) is provided with a groove, a sliding block (28) is provided on a side of the groove close to the opening, sliding grooves (19) are provided on both sides of the protrusion (14), the sliding block (28) is slidably connected to the sliding grooves (19), the protrusion (14) is provided with a receiving groove (26), a magnetic block (27) is provided on a side of the receiving groove (26) close to the opening, a support rod (24) is fixed in the groove, one end of the support rod (24) is located in the receiving groove (26), and an adsorption block (25) is provided at the end of the support rod (24); The chassis (1) is symmetrically provided with mounting frames (5), and guide wheels (6) are installed on the two mounting frames (5). The two pull ropes (7) pass through the two guide wheels (6) and are fixedly connected to the baffle plate (8). L-shaped limit blocks (29) are symmetrically provided on the side wall of the chassis (1) away from the running belt, and the baffle plate (8) is located between the two limit blocks (29).

2. A treadmill with a motor cooling device according to claim 1, characterized in that: A fan is installed in the heat dissipation box (2), and an opening is provided on the top of the heat dissipation box (2), with a dustproof net (3) fixed to the opening by means of a buckle.

3. A treadmill with a motor cooling device according to claim 1, characterized in that: The slow rebound rod (18) is made of memory foam.

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