CN114257016A

CN114257016A - Direct current motor

Info

Publication number: CN114257016A
Application number: CN202111606189.5A
Authority: CN
Inventors: 陈孟敏
Original assignee: Individual
Current assignee: Jiangmen Yingpai Electrical Appliances Co ltd
Priority date: 2021-12-26
Filing date: 2021-12-26
Publication date: 2022-03-29
Anticipated expiration: 2041-12-26
Also published as: CN114257016B

Abstract

The invention discloses a direct current motor, which relates to the technical field of motors and comprises a body, wherein two limiting frames are arranged on the side part of the body, damp-proof cotton is movably arranged in the two limiting frames together, a support dismantling assembly used for supporting or dismantling the damp-proof cotton is connected to the body, a linkage unit is connected to the support dismantling assembly, a cotton throwing assembly is connected to the linkage unit and used for throwing new damp-proof cotton into the limiting frames, and the support dismantling assembly drives the cotton throwing assembly to operate through the linkage unit. According to the invention, through the arrangement of the support dismantling component, the linkage unit and the cotton feeding component, when the damp-proof cotton loses the function, the damp-proof cotton can be automatically replaced in time, manual treatment is not needed, time and labor are saved, the phenomenon of untimely replacement can be effectively avoided, and the use is convenient.

Description

Direct current motor

Technical Field

The invention relates to the technical field of motors, in particular to a direct current motor.

Background

The dc motor is a rotating electrical machine that can convert dc electrical energy into mechanical energy (dc motor) or convert mechanical energy into dc electrical energy (dc generator); the motor can realize the mutual conversion of direct current electric energy and mechanical energy; and is widely applied to power equipment due to good speed regulation performance.

Most of current direct current motor is for the ease of heat dissipation, the louvre has generally all been seted up at the tail end, when needs use under moist or rainy environment, moist air or rainwater can get into inside the motor easily, influence the life-span of motor, even there is some motors to install dampproofing cotton in louvre department and carry out dampproofing and waterproofing, but after long-time the use, dampproofing cotton can lose the effect gradually, need artifical inspection and change, waste time and energy, the untimely phenomenon of change appears easily, it can't be in time changed according to dampproofing cotton in service behavior, it is comparatively inconvenient to use, for this reason, the application discloses a direct current motor satisfies people's demand.

Disclosure of Invention

The direct current motor comprises a support dismantling assembly, a linkage unit and a cotton throwing assembly, wherein the support dismantling assembly is arranged on the support dismantling assembly, the linkage unit is arranged on the support dismantling assembly, the cotton throwing assembly is arranged on the support dismantling assembly, and the linkage unit is arranged on the cotton throwing assembly.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a direct current motor, includes the body, two limit frames are installed to the lateral part of body, two common movable mounting has dampproofing cotton in the limit frame, be connected with on the body and be used for supporting or demolish the subassembly is demolishd in dampproofing cotton's support, the support is demolishd and is connected with the linkage unit on the subassembly, be connected with on the linkage unit and throw cotton subassembly, throw cotton subassembly be used for with new dampproofing cotton put in extremely in the limit frame, support and demolish the subassembly and pass through the linkage unit drive throw cotton subassembly operation.

Borrow by above-mentioned structure, when dampproofing cotton gravity increases to a certain extent and can't use, and then can trigger the support and demolish the dampproofing cotton of subassembly in to injecing the frame and carry out the automation and demolish to throw cotton subassembly operation through linkage unit drive, and then can put in new dampproofing cotton to injecing the frame, realize in time carrying out the purpose of automatic change, need not artifical the change, labour saving and time saving can effectively avoid changing untimely phenomenon emergence, convenient to use.

Preferably, the support is demolishd the subassembly and is included installing two fixed faggings of body lateral part, two it has cup jointed the support bull stick to rotate jointly in the fixed fagging, the lateral part of supporting the bull stick is evenly installed a plurality of support dogs, and is a plurality of the top of supporting the dog all with dampproofing cotton bottom contacts, cup joint on the support bull stick and install two spring mounting boards, the cover is equipped with two torque spring on the support bull stick, two torque spring's both ends are installed respectively two fixed fagging and two on spring mounting board's the lateral part, the support bull stick passes through the linkage unit with throw cotton subassembly and be connected.

Further, demolish the setting of subassembly through the support, after damp-proof cotton uses for a long time, it can absorb a large amount of moisture and lose the effect gradually, its self weight also can crescent simultaneously, and then can remove downwards gradually, and the extrusion supports the dog and uses the support bull stick to rotate as the centre of a circle, rotate to unable supporting role to playing when supporting the dog, the purpose of automatic demolising is realized to the automatic landing downwards of damp-proof cotton meeting this moment, after the damp-proof cotton falls, under torque spring's elastic force effect, can drive and support dog automatic re-setting, support new damp-proof cotton again.

Preferably, a plurality of the one end of supporting the dog is the slope setting, and all rotates evenly and installs a plurality of movable balls.

Further, through the arrangement of the movable balls, the friction force between the damp-proof cotton and the supporting stop block is reduced in the downward sliding process of the damp-proof cotton, so that the automatic sliding and dismantling process of the damp-proof cotton is smoother.

Preferably, the cotton throwing assembly comprises a sealed placing box arranged at the top of the body, a plurality of pieces of damp-proof cotton are movably arranged in the sealed placing box, a throwing hole is formed in the bottom of the sealed placing box and corresponds to the position of the limiting frame, two L-shaped fixed plates and two supporting bosses are arranged on the side portion of the sealed placing box, movable moving rods are sleeved in the two L-shaped fixed plates in a sliding mode, blocking blocks are arranged at one ends of the two movable moving rods, sealing baffles matched with the throwing hole are jointly arranged at the other ends of the two movable moving rods, moving racks are arranged on the side portions of the sealing baffles, connecting rotating rods are sleeved in the two supporting bosses in a rotating mode, driving gears meshed with the moving racks are sleeved on the connecting rotating rods, and the connecting rotating rods are connected with the linkage unit, the movable moving rod is connected with a reset unit, and a material pushing unit is installed in the sealed placing box.

Further, through the setting of throwing the cotton subassembly, when connecting the bull stick and rotate, can drive gear and rotate, and then the accessible removes the rack and drives sealing baffle and remove, will throw in the hole and open, at this moment, the sealed damp proof cotton that is located in throwing in hole department in placing the box can drop to injecing the frame automatically downwards, has realized the purpose of automatic change.

Preferably, the linkage unit comprises two driving reels respectively installed at two ends of the supporting rotating rod, driven reels are installed at two ends of the connecting rotating rod, and the driving reels and the driven reels are jointly wound and installed with connecting pull ropes.

Further, through the setting of linkage unit, when supporting the bull stick and rotate, can drive the initiative reel and rotate, under the effect of connecting the stay cord, can drive driven reel and connect the bull stick and rotate for throw cotton subassembly synchronous operation, played the linkage effect, the continuity is good.

Preferably, the reset unit comprises a reset spring sleeved on the movable moving rod, and two ends of the reset spring are respectively installed on the L-shaped fixed plate and the side part of the blocking block.

Furthermore, through the setting of reset unit, after putting in the completion, under reset spring's elasticity effect, can drive the activity and move the pole and seal baffle automatic re-setting will seal and place the box sealedly for other damp proof cotton can not wet in the box is placed sealedly.

Preferably, push away the material unit including installing telescopic sleeve on the sealed box inner wall of placing, slidable mounting has telescopic push rod in the telescopic sleeve, the removal push pedal is installed to telescopic push rod's one end, the lateral part and one of them of removing the push pedal the dampproofing cotton contacts, telescopic sleeve with it establishes to install the cover jointly on the lateral part that the removal push pedal is close to each other the last extrusion spring of telescopic push rod.

Further, through the setting that pushes away the material unit, after putting in the completion, under extrusion spring's effect, can drive and remove the push pedal and remove, and then can push other damp proof cotton in the sealed box of placing to putting in mouthful department in proper order to carry out the input next time.

Preferably, a guide funnel is mounted on the side of the body, and the guide funnel is positioned between the sealed placing box and the limiting frame.

Further, through the setting of direction funnel, can play the guide effect when putting in damp-proof cotton for damp-proof cotton can drop into to the limit frame more steadily in.

Preferably, two T-shaped slide rails are installed at the bottom of the body, two motor bases are installed on the T-shaped slide rails in a sliding mode together, a plurality of installation holes are evenly formed in the tops of the motor bases, and two distance adjusting units are connected to the motor bases together.

Furthermore, through the arrangement of the T-shaped sliding rails, the motor base and the mounting holes, the motors can be conveniently mounted on the motor mounting seats with different sizes, and the application range of the motors is widened.

Preferably, the distance adjusting unit comprises two limiting rotary rings arranged at the bottom of the body, the two limiting rotary rings are connected with an adjusting rotary column in a sleeved mode through rotating together, threaded moving columns are arranged at two ends of the adjusting rotary column, threads of the threaded moving columns are arranged oppositely, and one ends of the threaded moving columns penetrate through the two motor bases in a threaded mode and are provided with anti-falling pieces.

Further, through the setting of distance adjustment unit, when rotating the regulation rotary column, can drive two screw threads and move the post and rotate, and then can make two motor base remove in opposite directions or back of the body mutually, realize adjusting installation distance's purpose.

In conclusion, the technical effects and advantages of the invention are as follows:

1. the damp-proof cotton feeding device is reasonable in structure, when the gravity of the damp-proof cotton is increased to a certain degree and cannot be used, the supporting and removing assembly can be triggered to automatically remove the damp-proof cotton in the limiting frame, the cotton feeding assembly is driven to operate through the linkage unit, new damp-proof cotton can be fed into the limiting frame, the purpose of timely and automatic replacement is achieved, manual replacement is not needed, time and labor are saved, the phenomenon that replacement is not timely can be effectively avoided, and the damp-proof cotton feeding device is convenient to use;

2. according to the invention, after the damp-proof cotton is used for a long time, a large amount of water is absorbed by the damp-proof cotton to gradually lose effect, meanwhile, the self weight of the damp-proof cotton is gradually increased, and then the damp-proof cotton gradually moves downwards and extrudes the supporting stop block to rotate by taking the supporting rotating rod as a circle center, when the supporting stop block rotates to be incapable of playing a supporting role, the damp-proof cotton automatically slides downwards to realize the purpose of automatic removal, and after the damp-proof cotton falls, the supporting stop block is driven to automatically reset under the elastic action of the torsion spring to re-support new damp-proof cotton;

3. according to the automatic replacement device, when the supporting rotating rod rotates, the driving reel can be driven to rotate, the driven reel and the connecting rotating rod can be driven to rotate under the action of the connecting pull rope, the connecting rotating rod rotates to drive the driving gear to rotate, the sealing baffle can be driven to move through the moving rack, the throwing hole is opened, and at the moment, the damp-proof cotton located at the throwing hole in the sealing placing box can automatically fall downwards into the limiting frame, so that the purpose of automatic replacement is achieved;

4. according to the invention, after the throwing is finished, the sealing baffle plate can be driven to automatically reset under the elastic force action of the reset spring to seal the sealed placing box, so that other damp-proof cotton in the sealed placing box cannot be affected with damp, and meanwhile, the movable push plate can be driven to move under the action of the extrusion spring, so that other damp-proof cotton in the sealed placing box can be sequentially pushed to the throwing opening, and the next throwing is convenient;

5. according to the invention, when the adjusting rotary column is rotated, the two thread moving columns are driven to rotate, and because the threads of the two thread moving columns are arranged oppositely, and the two motor bases can move in the opposite direction or in the opposite direction under the action of the T-shaped sliding rail, the mounting distance between the two motor bases can be adjusted, so that the motors can be mounted on motor mounting bases with different sizes, and the application range of the motors is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic perspective view of another embodiment of the present disclosure;

FIG. 3 is a schematic side view of an embodiment of the present application;

FIG. 4 is an enlarged view of the structure at A in FIG. 2;

FIG. 5 is a partially enlarged view of FIG. 2;

FIG. 6 is an enlarged perspective view of a support stop according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a partial cross-sectional structure of a cotton feeding assembly in an embodiment of the present application;

fig. 8 is a partially enlarged view of fig. 7.

In the figure: 1. a body; 2. defining a frame; 3. moisture-proof cotton; 4. fixing a supporting plate; 5. supporting the rotating rod; 6. a support block; 7. a spring mounting plate; 8. a torsion spring; 9. a movable ball; 10. sealing the placing box; 11. an L-shaped fixing plate; 12. a movable rod; 13. sealing the baffle; 14. connecting the rotating rod; 15. a drive gear; 16. moving the rack; 17. a return spring; 18. driving the reel; 19. a driven reel; 20. connecting a pull rope; 21. a telescopic sleeve; 22. moving the push plate; 23. a compression spring; 24. a T-shaped slide rail; 25. a motor base; 26. mounting holes; 27. defining a swivel; 28. adjusting the rotary column; 29. moving the column through screw threads; 30. and (4) guiding the funnel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-8, a dc motor includes a body 1, two limiting frames 2 are installed on a side portion of the body 1, the limiting frames 2 are welded to the side portion of the body 1 for fixing, damp-proof cotton 3 is installed in the two limiting frames 2 in a co-movable manner, and the damp-proof cotton 3 may be any dry cotton capable of absorbing moisture in the prior art.

The supporting and dismantling assembly for supporting or dismantling the damp-proof cotton 3 is connected to the body 1, the supporting and dismantling assembly is connected to a linkage unit, a cotton throwing assembly is connected to the linkage unit and used for throwing the new damp-proof cotton 3 into the limiting frame 2, and the supporting and dismantling assembly is driven by the linkage unit to throw the cotton assembly to operate.

Borrow by above-mentioned structure, when dampproofing cotton 3 lost the effect, dampproofing cotton 3 gravity increases to the certain degree and when unable using, and then can trigger the support and demolish the subassembly and carry out the automation to the dampproofing cotton 3 of injecing in the frame 2 and demolish, and throw cotton subassembly operation through linkage unit drive, and then can put in new dampproofing cotton 3 to injecing in the frame 2, realize in time carrying out the purpose of automatic change, need not artifical the change, time saving and labor saving can effectively avoid changing untimely phenomenon emergence, high durability and convenient use.

As a preferred embodiment of the present embodiment, referring to fig. 1, 2 and 4, the support dismantling assembly includes two fixed supporting plates 4 mounted on the side of the body 1, and the fixed supporting plates 4 are welded to the side of the body 1 for fixing; a supporting rotating rod 5 is sleeved in the two fixed supporting plates 4 in a co-rotating mode, a plurality of supporting stop blocks 6 are uniformly arranged on the side portion of the supporting rotating rod 5, the supporting stop blocks 6 are fixed with the side portion of the supporting rotating rod 5 in a welding mode, and three supporting stop blocks 6 are arranged on the supporting rotating rod 5; the tops of a plurality of support dogs 6 all contact with the bottom of dampproofing cotton 3, cup joint on the support bull stick 5 and install two spring mounting boards 7, and the cover is equipped with two torque spring 8 on the support bull stick 5, and two torque spring 8's both ends are installed respectively on the lateral part of two fixed fagging 4 and two spring mounting boards 7, and support bull stick 5 is connected with throwing the cotton subassembly through the linkage unit.

After damp proof cotton 3 used for a long time, it can absorb a large amount of moisture and lose effect gradually, its self weight also can crescent simultaneously, and then can remove downwards gradually, and the extrusion supports dog 6 and uses the support bull stick 5 to rotate as the centre of a circle, rotate to unable supporting role to playing when supporting dog 6, the automatic mesh of demolising of landing realization downwards is down followed automatically to damp proof cotton 3 this moment, after damp proof cotton 3 falls, under torque spring 8's elastic force effect, can drive and support dog 6 automatic re-setting, support new damp proof cotton 3 again.

In this embodiment, referring to fig. 6, one end of each of the plurality of supporting stoppers 6 is obliquely disposed, and a plurality of movable balls 9 are uniformly and rotatably mounted on the supporting stoppers, and the movable balls 9 may be any ball structure in the prior art, such as metal balls.

The ball 9 can reduce the frictional force between the damp-proof cotton 3 and the supporting stop 6 in the process that the damp-proof cotton 3 slides down, so that the process that the damp-proof cotton 3 automatically slides down and is dismantled is smoother.

In the present embodiment, referring to fig. 1, 7 and 8, the cotton throwing assembly includes a sealed placing box 10 installed on the top of the body 1, the sealed placing box 10 is screwed with the top of the body 1 for fixing; a plurality of pieces of damp-proof cotton 3 are movably arranged in the sealed placing box 10, a throwing hole is formed in the bottom of the sealed placing box 10 and corresponds to the position of the limiting frame 2, two L-shaped fixed plates 11 and two supporting bosses are arranged on the side portion of the sealed placing box 10, movable moving rods 12 are sleeved in the two L-shaped fixed plates 11 in a sliding mode, blocking blocks are arranged at one ends of the two movable moving rods 12, sealing baffles 13 matched with the throwing hole are arranged at the other ends of the two movable moving rods 12 together, and the sealing baffles 13 are welded and fixed with the end portions of the movable moving rods 12; the lateral part of the sealing baffle 13 is provided with a movable rack 16, the two supporting bosses are internally sleeved with a connecting rotating rod 14 in a rotating way, the connecting rotating rod 14 is sleeved with a driving gear 15 meshed with the movable rack 16, the connecting rotating rod 14 is connected with a linkage unit, the movable moving rod 12 is connected with a resetting unit, and the sealing placing box 10 is internally provided with a material pushing unit.

When connecting bull stick 14 and rotating, can drive gear 15 and rotate, and then accessible removes rack 16 and drives sealed baffle 13 and remove, will throw in the hole and open, at this moment, the sealed damp proof cotton 3 that is located in throwing in the hole department in placing box 10 can drop to injecing in frame 2 automatically downwards, has realized the purpose of automatic change.

In this embodiment, referring to fig. 2, the linkage unit includes two driving reels 18 respectively installed at two ends of the supporting rotary rod 5, and two driven reels 19 installed at two ends of the connecting rotary rod 14, wherein the driving reels 18 and the driven reels 19 may be any plastic winding reels in the prior art; the two driving reels 18 and the two driven reels 19 are wound together with a connecting pull rope 20.

When the supporting rotating rod 5 rotates, the driving reel 18 can be driven to rotate, and under the action of the connecting pull rope 20, the driven reel 19 and the connecting rotating rod 14 can be driven to rotate, so that the cotton throwing assemblies synchronously operate, a linkage effect is achieved, and the continuity is good.

In the present embodiment, referring to fig. 8, the reset unit includes a reset spring 17 sleeved on the movable moving rod 12, and the reset spring 17 may be any one of metal springs in the prior art; two ends of a return spring 17 are respectively installed on the L-shaped fixing plate 11 and the side part of the stop block.

After the putting is finished, under the elastic force action of the return spring 17, the movable moving rod 12 and the sealing baffle 13 are driven to automatically reset to seal the sealed placing box 10, so that other damp-proof cotton 3 in the sealed placing box 10 cannot be affected with damp.

In this embodiment, referring to fig. 7, the material pushing unit includes a telescopic sleeve 21 installed on an inner side wall of the sealed placement box 10, a telescopic push rod is slidably installed in the telescopic sleeve 21, a movable push plate 22 is installed at one end of the telescopic push rod, and the movable push plate 22 is fixed to one end of the telescopic push rod by screwing; the side part of the movable push plate 22 is contacted with one damp-proof cotton 3, and the side parts of the telescopic sleeve 21 and the movable push plate 22 which are close to each other are jointly provided with an extrusion spring 23 which is sleeved on the telescopic push rod.

After the putting is finished, the movable push plate 22 is driven to move under the action of the extrusion spring 23, and then other damp-proof cotton 3 in the sealed placing box 10 can be sequentially pushed to the putting opening, so that the next putting is convenient.

As a preferred embodiment of the present embodiment, referring to fig. 1 and 3, a guide funnel 30 is installed at a side portion of the body 1, and the guide funnel 30 may be any one of metal funnels in the prior art, and is welded and fixed to the side portion of the body 1; the guide funnel 30 is located between the airtight placing case 10 and the confining frame 2.

Can play the guide effect when puting in the damp proof cotton 3 for the damp proof cotton 3 can drop into in the limit frame 2 more steadily.

As a preferred embodiment of this embodiment, referring to fig. 2, two T-shaped sliding rails 24 are installed at the bottom of the body 1, two motor bases 25 are installed on the two T-shaped sliding rails 24 in a sliding manner, and the motor bases 25 may be any metal base in the prior art; a plurality of mounting holes 26 have all evenly been seted up at the top of two motor bases 25, are connected with the distance adjustment unit jointly on two motor bases 25.

The motor base 25 can facilitate the installation of the motor on motor installation seats with different sizes, and the application range of the motor is widened.

In this embodiment, referring to fig. 5, the distance adjusting unit includes two limiting rotation rings 27 installed at the bottom of the body 1, an adjusting rotation column 28 is sleeved in the two limiting rotation rings 27 in a co-rotating manner, both ends of the adjusting rotation column 28 are respectively provided with a thread moving column 29, the threads of the two thread moving columns 29 are oppositely arranged, and one end of each thread moving column 29 is respectively threaded through the two motor bases 25 and is respectively provided with an anti-falling sheet.

When the adjusting rotary column 28 is rotated, the two threaded moving columns 29 are driven to rotate, and the two motor bases 25 are moved towards or away from each other, so that the purpose of adjusting the installation distance is achieved.

The working principle of the invention is as follows:

When supporting the bull stick 5 and rotating, can drive initiative reel 18 and rotate, under the effect of connecting stay cord 20, can drive driven reel 19 and connect bull stick 14 and rotate, connect bull stick 14 and rotate and drive gear 15 and rotate, and then accessible removes rack 16 and drives sealed baffle 13 and remove, will throw in the hole and open, at this moment, the sealed damp-proof cotton 3 that is located in throwing in the hole department in placing box 10 can drop to injecing in frame 2 automatically downwards, has realized the purpose of automatic change.

After putting in and accomplishing, under reset spring 17's elasticity effect, can drive sealed baffle 13 automatic re-setting will seal and place box 10 sealedly for other dampproofing cotton 3 can not wet in the sealed box 10 of placing, simultaneously, under extrusion spring 23's effect, can drive and remove push pedal 22 and remove, and then can push other dampproofing cotton 3 in the sealed box 10 of placing to putting in mouthful department in proper order, so that carry out the input next time.

When the adjusting rotary column 28 is rotated, the two screw thread moving columns 29 are driven to rotate, the screw threads of the two screw thread moving columns 29 are oppositely arranged, and under the action of the T-shaped sliding rail 24, the two motor bases 25 can move in opposite directions or in opposite directions, so that the mounting distance between the two motor bases 25 can be adjusted, the motors can be mounted on the motor mounting seats with different sizes, and the application range of the motors is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A direct current motor, comprising a body (1), characterized in that: two limit frames (2) are installed to the lateral part of body (1), two common movable mounting has dampproofing cotton (3) in limit frame (2), be connected with on body (1) and be used for supporting or demolish the subassembly is demolishd in the support of dampproofing cotton (3), support and demolish and be connected with the linkage unit on the subassembly, be connected with on the linkage unit and throw the cotton subassembly, throw the cotton subassembly and be used for newly dampproofing cotton (3) put in extremely in limit frame (2), support and demolish the subassembly and pass through the linkage unit drive throw the operation of cotton subassembly.

2. A direct current motor according to claim 1, characterized in that: the support is demolishd the subassembly and is included installing two fixed fagging (4) of body (1) lateral part, two rotate jointly in fixed fagging (4) and have cup jointed support bull stick (5), the lateral part that supports bull stick (5) evenly installs a plurality of support dog (6), and is a plurality of the top of supporting dog (6) all with the bottom of dampproofing cotton (3) contacts, cup joint on support bull stick (5) and install two spring mounting panel (7), the cover is equipped with two torque spring (8) on supporting bull stick (5), two the both ends of torque spring (8) are installed respectively two fixed fagging (4) and two on the lateral part of spring mounting panel (7), support bull stick (5) pass through the linkage unit with throw the cotton subassembly and be connected.

3. A direct current motor according to claim 2, wherein: a plurality of the one end of supporting the dog (6) is the slope setting, and all evenly rotates and installs a plurality of movable ball (9).

4. A direct current motor according to claim 2, wherein: the cotton throwing assembly comprises a sealed placing box (10) arranged at the top of the body (1), a plurality of damp-proof cotton (3) are movably arranged in the sealed placing box (10), a throwing hole is formed in the bottom of the sealed placing box (10) and corresponds to the position of the limiting frame (2), two L-shaped fixed plates (11) and two supporting bosses are arranged on the side of the sealed placing box (10), movable moving rods (12) are sleeved in the two L-shaped fixed plates (11) in a sliding mode, blocking blocks are arranged at one ends of the two movable moving rods (12), sealing baffles (13) matched with the throwing holes are jointly arranged at the other ends of the two movable moving rods (12), moving racks (16) are arranged on the side of the sealing baffles (13), and connecting rotating rods (14) are sleeved in the two supporting bosses in a rotating mode, the connecting rotating rod (14) is sleeved with a driving gear (15) meshed with the moving rack (16), the connecting rotating rod (14) is connected with the linkage unit, the movable moving rod (12) is connected with a reset unit, and a material pushing unit is installed in the sealed placing box (10).

5. A direct current motor according to claim 4, characterized in that: the linkage unit comprises two driving reels (18) which are respectively installed at two ends of the supporting rotating rod (5), driven reels (19) are installed at two ends of the connecting rotating rod (14), and the two driving reels (18) and the two driven reels (19) are jointly wound and installed with connecting pull ropes (20).

6. A direct current motor according to claim 4, characterized in that: the reset unit comprises a reset spring (17) sleeved on the movable moving rod (12), and two ends of the reset spring (17) are respectively installed on the L-shaped fixed plate (11) and the side part of the blocking block.

7. A direct current motor according to claim 4, characterized in that: the material pushing unit comprises an installation telescopic sleeve (21) arranged on the inner side wall of the sealed placing box (10), a telescopic push rod is arranged in the telescopic sleeve (21) in a sliding mode, a movable push plate (22) is installed at one end of the telescopic push rod, the side portion of the movable push plate (22) is in contact with one of the telescopic push rod and the dampproof cotton (3), the telescopic sleeve (21) is in contact with the movable push plate (22) on the side portion close to each other, a sleeve is installed jointly on the side portion, and the telescopic push rod is provided with an extrusion spring (23).

8. A direct current motor according to claim 4, characterized in that: the side of body (1) is installed guide funnel (30), guide funnel (30) are located sealed place box (10) with between limiting frame (2).

9. A direct current motor according to claim 1, characterized in that: two T shape slide rails (24) are installed to the bottom of body (1), two common slidable mounting has two motor base (25), two on T shape slide rail (24) a plurality of mounting holes (26), two have all evenly been seted up at the top of motor base (25) be connected with apart from the regulating unit jointly on motor base (25).

10. A direct current motor according to claim 9, wherein: the distance adjusting unit comprises two limiting rotating rings (27) and two limiting rotating columns (28) arranged at the bottom of the body (1), the limiting rotating rings (27) are internally and jointly rotated and sleeved with the adjusting rotating columns (28), the two ends of the adjusting rotating columns (28) are respectively provided with a thread moving column (29), the threads of the thread moving columns (29) are oppositely arranged, and the two threads of one end of each thread moving column (29) penetrate through the motor base (25) and are respectively provided with an anti-falling sheet.