CN215999941U

CN215999941U - Angle mill suitable for underwater operation

Info

Publication number: CN215999941U
Application number: CN202122197487.5U
Authority: CN
Inventors: 张希鼎
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-03-11
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an angle mill suitable for underwater operation, including: the shell is used for forming a handle for a user to hold, a sealed cavity is arranged in the shell, and a shaft hole communicated with the sealed cavity is formed in the front end of the shell; the mechanical sealing element is sleeved on the output shaft and used for sealing the shaft hole; the air valve is communicated with one side of the sealed cavity and used for inflating or deflating the sealed cavity; a mechanical sealing element is arranged on the shaft hole of the output shaft, so that the sealing property of a sealed cavity in the shell can be well ensured; in addition, through the setting of air cock again, can be with gas pressure rush into in the sealed cavity to when the operation in aqueous, can not cause the internal circuit infiltration because of external pressure is big, the waterproof sealing's that plays effect that can be fine can operate in aquatic or deep water, improves the practicality of angle mill, is fit for extensive using widely.

Description

Angle mill suitable for underwater operation

Technical Field

The utility model relates to an angle mill technical field especially relates to an angle mill suitable for underwater operation.

Background

An angle grinder is a grinding tool for grinding, cutting, derusting, and polishing metal members using a thin grinding wheel, a rubber grinding wheel, a wire wheel, or the like that rotates at high speed. Because the angle grinder has a wide application range and can be frequently used under various severe working conditions, the sealing performance of the angle grinder is an important index for verifying that the angle grinder can also adapt to the use environment. However, the existing angle film machine has poor sealing performance, cannot be suitable for underwater work, and greatly reduces the practicability of the angle grinder; therefore, there is a need for an angle grinder that is suitable for underwater operations.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an angle mill suitable for underwater operation solves more than one problem among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following scheme: an angle grinder suitable for underwater operation, comprising:

the shell is used for forming a handle for a user to hold, a sealed cavity is arranged in the shell, and a shaft hole communicated with the sealed cavity is formed in the front end of the shell;

the output shaft is rotatably arranged in the shaft hole, and the outer end of the output shaft can be connected with the grinding disc assembly;

the mechanical sealing element is sleeved on the output shaft and used for sealing the shaft hole;

the motor is arranged in the sealed cavity;

the transmission mechanism is used for realizing transmission between the motor and the output shaft;

and the air nozzle is communicated with one side of the sealed cavity and used for inflating or deflating the sealed cavity.

Further, still be equipped with the power supply unit that can provide the electric energy on the casing, power supply unit is including setting up the base sealing member and the battery quick detach seat of casing bottom, form between battery quick detach seat and the casing terminal surface and can let the battery can dismantle male battery slot, the base sealing member sets up in the battery slot, and be equipped with electrically conductive copper post on the base sealing member, electrically conductive copper post one end stretches into in the sealed cavity, and in the other end stretches into the battery slot still be equipped with in the sealed cavity and be connected and can control motor work's controlling means with electrically conductive copper post electricity.

Further, controlling means is including setting up circuit board, micro-gap switch and the some moving axis in the sealed cavity, micro-gap switch respectively with circuit board, motor electric connection the casing front end is equipped with first through-hole, the cover is equipped with first sealing washer and activity on the outer wall of some moving axis is worn to establish in first through-hole still be equipped with the ring briquetting that can press the micro-gap switch actuating lever in the some moving axis, the outer end activity of some moving axis stretches out outside the casing, and the inner is connected with first spring and supports and lean on sealed cavity internal face.

Further, still be equipped with speed governing switch and regulation pivot in the sealed cavity, speed governing switch and motor electric connection the casing rear end is equipped with the second through-hole, the cover is equipped with the second sealing washer on the outer wall of regulation pivot and rotates and set up in the second through-hole, the inner and the speed governing switch of regulation pivot are connected, and the outer end extends to outside the casing.

Furthermore, the transmission mechanism comprises a first gear arranged on the output shaft of the motor, and a second gear capable of being meshed with the first gear is sleeved on the output shaft.

Furthermore, a plurality of braking holes are formed in the end of the second gear in a circumferential array mode, a first counter bore is formed in the rear end, located on the shell, of the second gear, a braking rod is movably arranged in the first counter bore in a penetrating mode, a third sealing ring is sleeved on the outer wall face of the braking rod, the inner end of the braking rod can be inserted into the braking holes, the outer end of the braking rod extends out of the shell and is provided with a braking button, and a second spring is connected between the braking button and the first counter bore.

Further, a switch handle is hinged to the front end of the shell, and the inner side face of the switch handle abuts against the outer end face of the turning shaft.

Further, the casing includes handle portion, set up in the motor seat shell of handle portion upper end and set up the battery holder in handle portion lower extreme, be equipped with the fourth sealing washer between handle portion and the motor seat shell and fix both through the bolt, be equipped with the fifth sealing washer between handle portion and the battery holder and fix both through the bolt.

Further, the base sealing element is fixed on the battery seat through a bolt, and the battery quick-release seat is fixed on the battery seat through a waterproof screw.

Further, a second counter bore is formed in the lower end of the handle portion, an acrylic light guide column is arranged in the second counter bore, and a sixth sealing ring is arranged between the acrylic light guide column and the second counter bore.

In conclusion, the beneficial effects of the utility model are that: a mechanical sealing element is arranged on the shaft hole of the output shaft, so that the sealing property of a sealed cavity in the shell can be well ensured; in addition, through the setting of air cock again, can be with gas pressure rush into in the sealed cavity to when the operation in aqueous, can not cause the internal circuit infiltration because of external pressure is big, the waterproof sealing's that plays effect that can be fine can operate in aquatic or deep water, improves the practicality of angle mill, is fit for extensive using widely.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention.

Fig. 4 is a partial cross-sectional view of the present invention.

Fig. 5 is a second partial cross-sectional view of the present invention.

Fig. 6 is a third schematic partial sectional view of the present invention.

Fig. 7 is a fourth schematic partial sectional view of the present invention.

Description of reference numerals: 1. a housing; 2. sealing the cavity; 4. a shaft hole; 5. an output shaft; 6. a mechanical seal; 7. a motor; 8. an air tap; 21. a base seal; 22. a battery quick-release seat; 23. a battery slot; 24. a conductive copper pillar; 31. a circuit board; 32. a microswitch; 33. Pointing the moving shaft; 34. a first seal ring; 35. a first through hole; 36. pressing a circular ring; 37. a first spring; 41. a speed regulating switch; 42. adjusting the rotating shaft; 43. a second through hole; 51. a first gear; 52. a second gear; 61. a brake hole; 62. a first counterbore; 63. a brake lever; 64. a third seal ring; 65. a brake button; 66. a second spring; 71. a switch handle; 81. a handle portion; 82. a motor housing; 83. a battery holder; 84. four sealing rings; 85. a fifth seal ring; 91. A waterproof screw; 100. a second counterbore; 101. an acrylic light guide column; 102. a sixth seal ring; 10. a main seat shell; 11. a rear aluminum cover; 12. a front cover; 45. turning; 53. a first bearing; 54. a second bearing.

Detailed Description

The following detailed description provides many different embodiments or examples for implementing the invention. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of the description of the present invention and do not represent a particular relationship between the various embodiments and/or structures discussed.

The invention is further described in the following figures and embodiments: an angle grinder suitable for underwater operation as shown in fig. 1 to 7 comprises:

the handle-free electric toothbrush comprises a shell 1, a handle and a handle, wherein the shell 1 is used for forming a handle for a user to hold, a sealed cavity 2 is arranged in the shell 1, and a shaft hole 4 communicated with the sealed cavity 2 is formed in the front end of the shell 1;

the output shaft 5 is rotatably arranged in the shaft hole 4, and the outer end of the output shaft 5 can be connected with the grinding plate assembly;

the mechanical sealing element 6 is sleeved on the output shaft 5 and used for sealing the shaft hole 4;

the motor 7 is arranged in the sealed cavity 2;

the transmission mechanism is used for realizing transmission between the motor 7 and the output shaft 5;

air cock 8, the intercommunication sets up sealed cavity 2 one side, is used for right sealed cavity 2 aerifys or loses heart, is equipped with the sealing washer between air cock 8 and the casing 1, can guarantee the gas tightness in the sealed casing 4.

The gas with corresponding pressure can be filled in through the air tap 8 according to the submergence depth, and because the internal pressure and the external pressure are the same, the internal pressure and the external pressure are mutually offset, the internal circuit water seepage caused by large external pressure can be avoided, and the deep water operation can be normally carried out.

Specifically, the housing 1 includes a handle portion 81, a motor base housing 82 disposed at an upper end of the handle portion 81, and a battery base 83 disposed at a lower end of the handle portion 81, a fourth gasket 84 is disposed between the handle portion 81 and the motor base housing 82 and fixed thereto by a bolt, and a fifth gasket 85 is disposed between the handle portion 81 and the battery base 83 and fixed thereto by a bolt.

Certainly, in order to facilitate the installation of the motor 7, the motor base shell 82 further includes a main base shell 10, a rear aluminum cover 11 and a front cover 12, the rear end of the main base shell 10 is an opening, the motor 7 is put into the opening from the opening, the transmission shaft of the motor 7 extends forwards and then is provided with the first gear 51, the opening at the rear end of the main base shell 10 is sealed by the rear aluminum cover 11, the front cover 12 covers the front end of the main base shell 10, it should be noted that a waterproof sealing ring is arranged between the main base shell 10 and the front cover 12, and a waterproof sealing ring is arranged between the main base shell 10 and the rear aluminum cover 11, so as to ensure the internal sealing performance.

The battery protection device is characterized in that a power supply device capable of providing electric energy is further arranged on the shell 1, the power supply device comprises a base sealing piece 21 and a battery quick-release seat 22, the base sealing piece 21 is arranged at the bottom end of the shell 1, the battery quick-release seat 22 is fixed on the battery seat 83 through a bolt, a battery slot 23 capable of allowing a battery to be detachably inserted is formed between the battery quick-release seat 22 and the lower end face of the shell 1, the base sealing piece 21 is arranged in the battery slot 23, a conductive copper column 24 is arranged on the base sealing piece 21, one end of the conductive copper column 24 extends into the sealed cavity 2, the other end of the conductive copper column extends into the battery slot 23, a control device which is electrically connected with the conductive copper column 24 and can control the work of the motor 7 is further arranged in the sealed cavity 2, and the battery is directly inserted into the battery slot 23 during operation, the battery joint contacts with the conductive copper column 24 to realize electrification, so that the device is powered by the battery, wireless work can be realized, and the device is extremely convenient; and the waterproof sealing performance is good, and the phenomenon of power failure and electric leakage can not occur.

Referring to fig. 2-6, the control device includes a circuit board 31, a microswitch 32 and a movable axis 33 disposed in the sealed cavity 2, the microswitch 32 is electrically connected to the circuit board 31 and the motor 7, respectively, a first through hole 35 is disposed at the front end of the housing 1, a first sealing ring 34 is sleeved on the outer wall surface of the movable axis 33 and movably penetrates through the first through hole 35, an annular pressing block 36 capable of pressing the driving rod of the microswitch 32 is further disposed on the movable axis 33, the outer end of the movable axis 33 movably extends out of the housing 1, the inner end of the movable axis 33 is connected to a first spring 37 and abuts against the inner wall surface of the sealed cavity 2, a switch handle 71 is hinged to the front end of the housing 1, the inner side surface of the switch handle 71 abuts against the outer end surface of the movable axis 33, when in operation, the switch handle 71 presses the movable axis 33, the point moving shaft 33 and the ring pressing block 36 move inwards, the ring pressing block 36 can press against the driving rod of the micro switch 32 when the point moving shaft and the ring pressing block are moved, accordingly, power on is achieved, the driving motor 7 works, when the switch handle 71 is loosened, the point moving shaft 33 is outwards ejected through the elastic force of the first spring 37, the ring pressing block 36 is separated from the driving rod, and power off can be achieved.

The circuit board 31 is provided with the radiating fins, and the circuit board 31 can be radiated by the arrangement of the radiating fins, so that the normal work of the circuit board 31 is ensured.

A second counter bore 100 is formed in the lower end of the handle portion 81, an acrylic light guide column 101 is arranged in the second counter bore 100, a sixth sealing ring 102 is arranged between the acrylic light guide column 101 and the second counter bore 100, and a prompting lamp bead is arranged in the acrylic light guide column 101, so that whether the electric quantity is sufficient or whether the electric quantity is in a working state or not can be judged according to the brightness of the prompting lamp bead; and the structure can play a sealing role well, and can ensure the sealing property in the sealing cavity 2.

In order to be able to accommodate motor 7's rotational speed still be equipped with speed governing switch 41 and regulation pivot 42 in sealed cavity 2, speed governing switch 41 and motor 7 electric connection the 1 rear end of casing is equipped with second through-hole 43, the cover is equipped with second sealing washer 44 and rotates the setting in second through-hole 43 on the outer wall of regulation pivot 42, the inner of regulation pivot 42 is connected with speed governing switch 41, and the outer end extends to outside the casing 1, certainly, is equipped with the turn round 45 in the outer end of regulation pivot 42, and the accessible turn round 45 conveniently twists the regulation pivot 42, according to above-mentioned structure, comes accommodate motor 7's rotational speed through speed governing switch 41, leakproofness in the guarantee sealed cavity 2 that simultaneously can be fine.

Referring to fig. 2, 5-6, the transmission mechanism includes a first gear 51 disposed on the output shaft of the motor 7, a second gear 52 capable of meshing with the first gear 51 is sleeved on the output shaft 5, and the output shaft 5 and the second gear 52 can be fixedly mounted by means of matching of keys and keyways; in order to ensure the smooth rotation of the output shaft 5, a first bearing 53 and a second bearing 54 are respectively sleeved on the output shaft 5, the first bearing 53 is sleeved at the tail end of the output shaft 5 and is installed at the front end of the main seat shell 10, and the second bearing 54 is installed at the front end of the front cover 12, so that the smooth rotation of the output shaft 5 can be ensured.

Referring to fig. 6, a plurality of brake holes 61 are circumferentially arrayed on an end surface of the second gear 52, a first counterbore 62 is provided at a rear end of the second gear 52 on the housing 1, a brake lever 63 is movably inserted in the first counterbore 62, a third seal ring 64 is sleeved on an outer wall surface of the brake lever 63, an inner end of the brake lever 63 can be inserted into the brake hole 61, an outer end of the brake lever 63 extends out of the housing 1 and is provided with a brake button 65, a second spring 66 is connected between the brake button 65 and the first counterbore 62, when the abrasive disc needs to be mounted or dismounted, the brake button 65 is pressed to drive the brake lever 63 to move inwards, and the brake lever 63 is inserted into the brake hole 61 of the second gear 52, so that the second gear 52 is locked with the output shaft 5, and the abrasive disc can be mounted or dismounted under the condition of ensuring safety, the safety is improved, and the brake rod 63 is made of metal; after braking, the brake button 65 is released, and the brake lever 63 is ejected outward by the second spring 66.

In combination with the basic principles and main features of the present invention and the advantages of the present invention as shown and described above, those skilled in the art should understand that the present invention is not limited by the above embodiments, and only the description in the above embodiments and the description illustrates the principles of the present invention without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An angle grinder suitable for underwater operation, comprising:

the handle is characterized by comprising a shell (1) and a handle, wherein the shell (1) is used for forming a handle for a user to hold, a sealed cavity (2) is arranged in the shell (1), and a shaft hole (4) communicated with the sealed cavity (2) is formed in the front end of the shell (1);

the output shaft (5) is rotatably arranged in the shaft hole (4), and the outer end of the output shaft (5) can be connected with the grinding disc assembly;

the mechanical sealing element (6) is sleeved on the output shaft (5) and used for sealing the shaft hole (4);

a motor (7) arranged in the sealed cavity (2);

the transmission mechanism is used for realizing transmission between the motor (7) and the output shaft (5);

and the air nozzle (8) is communicated with one side of the sealed cavity (2) and is used for inflating or deflating the sealed cavity (2).

2. An angle grinder adapted for underwater operation as claimed in claim 1, wherein: still be equipped with the power supply unit that can provide the electric energy on casing (1), power supply unit is including setting up base sealing member (21) and battery quick detach seat (22) of casing (1) bottom, form between terminal surface under battery quick detach seat (22) and casing (1) and to let the battery can dismantle male battery slot (23), base sealing member (21) set up in battery slot (23), and be equipped with electrically conductive copper post (24) on base sealing member (21), electrically conductive copper post (24) one end stretches into in sealed cavity (2), and in the other end stretches into battery slot (23) still be equipped with in sealed cavity (2) and be connected and can control motor (7) controlling means of work with electrically conductive copper post (24) electricity.

3. An angle grinder adapted for underwater operation as claimed in claim 2, wherein: the control device comprises a circuit board (31), a microswitch (32) and a point moving shaft (33) which are arranged in a sealed cavity (2), wherein the microswitch (32) is respectively electrically connected with the circuit board (31) and a motor (7), a first through hole (35) is formed in the front end of the shell (1), a first sealing ring (34) is sleeved on the outer wall surface of the point moving shaft (33) and movably penetrates through the first through hole (35), a circular ring pressing block (36) capable of pressing a driving rod of the microswitch (32) is further arranged on the point moving shaft (33), the outer end of the point moving shaft (33) movably extends out of the shell (1), and the inner end of the point moving shaft is connected with a first spring (37) and abuts against the inner wall surface of the sealed cavity (2).

4. An angle grinder adapted for underwater operation as claimed in claim 3, wherein: still be equipped with speed governing switch (41) and regulation pivot (42) in sealed cavity (2), speed governing switch (41) and motor (7) electric connection casing (1) rear end is equipped with second through-hole (43), the cover is equipped with second sealing washer (44) and rotates the setting in second through-hole (43) on the outer wall of regulation pivot (42), the inner and the speed governing switch (41) of regulation pivot (42) are connected, and the outer end extends to outside casing (1).

5. An angle grinder adapted for underwater operation as claimed in claim 1, wherein: the transmission mechanism comprises a first gear (51) arranged on an output shaft of the motor (7), and a second gear (52) capable of being meshed with the first gear (51) is sleeved on the output shaft (5).

6. An angle grinder adapted for underwater operation as claimed in claim 5, wherein: there are a plurality of braking holes (61) along the circumference array on the terminal surface of second gear (52) the rear end that lies in second gear (52) on casing (1) is equipped with first counter bore (62) brake lever (63) are worn to be equipped with in first counter bore (62) internalization, the cover is equipped with third sealing washer (64) on the outer wall of brake lever (63), the inner of brake lever (63) can insert in braking hole (61), the outer end extends to casing (1) outside and is equipped with brake button (65), and is in be connected with second spring (66) between brake button (65) and first counter bore (62).

7. An angle grinder adapted for underwater operation as claimed in claim 3, wherein: a switch handle (71) is hinged at the front end of the shell (1), and the inner side surface of the switch handle (71) abuts against the outer end surface of the screwing shaft (33).

8. An angle grinder adapted for underwater operation as claimed in claim 2, wherein: the casing (1) is including handle portion (81), set up motor seat shell (82) in handle portion (81) upper end and set up battery holder (83) in handle portion (81) lower extreme, be equipped with fourth sealing washer (84) between handle portion (81) and motor seat shell (82) and fix both through the bolt, be equipped with fifth sealing washer (85) between handle portion (81) and battery holder (83) and fix both through the bolt.

9. An angle grinder adapted for underwater operation as claimed in claim 8, wherein: the base sealing piece (21) is fixed on the battery seat (83) through a bolt, and the battery quick-release seat (22) is fixed on the battery seat (83) through a waterproof screw (91).

10. An angle grinder adapted for underwater operation as claimed in claim 8, wherein: the handle part (81) lower extreme is equipped with second counter bore (100) be equipped with ya keli light guide column (101) in second counter bore (100), be equipped with sixth sealing washer (102) between ya keli light guide column (101) and second counter bore (100).