Rotary handheld device

Abstract

The utility model belongs to the technical field of handheld devices, and particularly relates to a rotary handheld device which comprises a machine shell and a drill bit, a motor is fixedly connected in the machine shell, a driving shaft is fixedly connected on an output shaft of the motor, a bearing seat is fixedly connected on one side of the machine shell, and a bearing outer ring is fixedly connected in the bearing seat. Compared with the prior art, the drill bit fixing device has the advantages that through the arrangement of the clamping groove, the clamping plate, the movable plate, the threaded rod, the nut, the guide rod and the connecting base, the drill bit can be replaced conveniently, compared with elastic clamping, the design is firmer and more stable in fixing, firmness and stability of connection between the drill bit and the connecting base are guaranteed, the drill bit is not prone to falling off, and the service life of the drill bit is prolonged. And lubricating oil can be uniformly and comprehensively injected into the joint of the bearing inner ring and the bearing outer ring, so that the lubricating effect is improved, the abrasion of the bearing is reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of handheld devices, in particular to a handheld device with rotating motion. Background Art

[0002] The handheld electric drill currently sold on the market is a drilling machine that uses electricity as power. It is a conventional product among handheld power tools and is also the most in-demand handheld power tool product. The working principle of the electric drill is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting and work operation, and drives the operating device through the transmission mechanism, driving the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and better penetrates the object. After searching: A drilling device for construction engineering technical services with the authorization publication number CN213743244U includes a motor fixedly installed inside the operating box, the drive shaft of the motor passes through the operating box and is fixedly connected to the mounting plate set outside the operating box, a rotating column is fixedly installed at one end of the mounting plate, a drill rod is provided at one end of the rotating column, and L-shaped support plates are fixedly installed on both sides of the rotating column.

[0003] However, the handheld drilling device described above still has some shortcomings. The elastic connection between the spring and the limit rod is prone to loose fixation, which makes the drill bit easily deviate or even fall off. In addition, it is inconvenient to regularly lubricate the bearings outside the drive shaft. Long-term use can easily cause wear and damage to the bearings, thereby reducing the service life of the bearings. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings and proposes a handheld device with rotating motion.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A handheld device with rotating motion comprises a casing and a drill bit, wherein a motor is fixedly connected inside the casing, a driving shaft is fixedly connected to the output shaft of the motor, a bearing seat is fixedly connected to one side of the casing, a bearing outer ring is fixedly connected inside the bearing seat, a bearing inner ring is rotatably connected inside the bearing outer ring, the driving shaft is fixedly sleeved inside the bearing inner ring, a lubrication assembly is arranged between the bearing seat, the bearing outer ring and the bearing inner ring, one end of the driving shaft is fixedly connected to a connecting seat, a stable disassembly and assembly assembly is arranged between the connecting seat and the drill bit, and a handheld assembly is arranged on the casing.

[0007] Preferably, the handheld assembly includes a left handheld portion and an upper handheld portion fixedly connected, the left handheld portion is fixedly connected to one side of the housing, and the upper handheld portion is fixedly connected to the top of the housing.

[0008] Preferably, outer sides of the upper grip and the left grip are fixedly covered with rubber sleeves.

[0009] Preferably, grooves are provided on the top inner wall and the bottom inner wall of the connecting seat, and the stable disassembly and assembly component includes two nuts, which are respectively fixedly connected to the top and the bottom of the connecting seat, and threaded rods are provided on the inner thread sleeves of the nuts. The ends of the two threaded rods close to each other are rotatably connected to a movable plate, and a clamping plate is fixedly connected to the inner side of the movable plate. Clamping slots are provided on the top and the bottom of the drill bit, and the two clamping plates are respectively movably clamped in the corresponding clamping slots.

[0010] Preferably, two guide rods are fixedly connected to the bottom inner wall and the top inner wall of the groove, and the movable plate is slidably sleeved on the outer sides of the two guide rods.

[0011] Preferably, ends of the two threaded rods that are away from each other are fixedly connected with a handwheel.

[0012] Preferably, the lubrication assembly includes an oil inlet pipe, which is fixedly connected to the top of the bearing seat, and the bottom end of the oil inlet pipe is fixedly connected to a cavity, and the bottom inner wall of the cavity is fixedly connected to a plurality of through holes, the cavity is arranged in the bearing seat, and the plurality of through holes are opened between the bearing seat and the outer ring of the bearing, and the through holes are connected to the connection between the outer ring of the bearing and the inner ring of the bearing.

[0013] Preferably, a sealing cover is threadedly connected to the outer side of the top end of the oil inlet pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a hand-held device with rotating motion, which is convenient for a person to hold the device for drilling through the left hand grip and the upper hand grip, and the comfort of the person holding the device is improved through the rubber sleeve. The arrangement of the card slot, the card plate, the movable plate, the threaded rod, the nut, the guide rod and the connecting seat not only facilitates the replacement of the drill bit, but also is more firmly and stably fixed than the elastic card connection, thereby ensuring the firmness and stability of the connection between the drill bit and the connecting seat, and making it less likely for the drill bit to fall off.

[0016] The utility model discloses a hand-held device with rotating motion, which can evenly and comprehensively inject lubricating oil into the connection between the inner ring of the bearing and the outer ring of the bearing through the arrangement of a sealing cover, an oil inlet pipe, a cavity, a through hole, an inner ring of the bearing and an outer ring of the bearing, thereby well lubricating the connection between the inner ring of the bearing and the outer ring of the bearing, reducing the wear of the bearing and ensuring the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following will briefly introduce the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and the structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance, and any structural modification, change in proportional relationship or adjustment of size.

[0018] Figure 1 This is a structural schematic diagram of a handheld device with rotating motion proposed by the utility model;

[0019] Figure 2 A cross-sectional view of a handheld device for rotating motion proposed by the utility model;

[0020] Figure 3 This is a structural schematic diagram of part A of a rotating handheld device proposed by the present invention;

[0021] Figure 4 This is a structural schematic diagram of part B of a rotating handheld device proposed by the present invention.

[0022] In the figure: 1. housing; 2. motor; 3. left hand grip; 4. upper hand grip; 5. bearing seat; 6. connecting seat; 7. drill bit; 8. sealing cover; 9. driving shaft; 10. threaded rod; 11. nut; 12. clamping plate; 13. clamping groove; 14. moving plate; 15. groove; 16. guide rod; 17. oil inlet pipe; 18. bearing outer ring; 19. bearing inner ring; 20. through hole; 21. cavity. Implementation

[0023] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] Reference Figure 1-4A handheld device with rotating motion includes a casing 1 and a drill bit 7. A motor 2 is fixedly connected inside the casing 1, and a driving shaft 9 is fixedly connected to the output shaft of the motor 2. A bearing seat 5 is fixedly connected to one side of the casing 1. A bearing outer ring 18 is fixedly connected inside the bearing seat 5, and a bearing inner ring 19 is rotatably connected inside the bearing outer ring 18. The driving shaft 9 is fixedly sleeved in the bearing inner ring 19. A lubrication component is arranged between the bearing seat 5, the bearing outer ring 18 and the bearing inner ring 19. A connecting seat 6 is fixedly connected to one end of the driving shaft 9, and a stable disassembly and assembly component is arranged between the connecting seat 6 and the drill bit 7. A handheld component is arranged on the casing 1.

[0029] In the utility model, the handheld assembly includes a left handheld portion 3 and an upper handheld portion 4 fixedly connected, the left handheld portion 3 is fixedly connected to one side of the casing 1, and the upper handheld portion 4 is fixedly connected to the top of the casing 1. Through the left handheld portion 3 and the upper handheld portion 4, it is convenient for a person to hold the device for drilling.

[0030] In the utility model, the outer sides of the upper grip part 4 and the left grip part 3 are fixedly sleeved with rubber sleeves, and the rubber sleeves improve the comfort of the person holding the device.

[0031] In the utility model, grooves 15 are provided on the top inner wall and the bottom inner wall of the connecting seat 6, and the stable disassembly assembly includes two nuts 11, which are respectively fixedly connected to the top and the bottom of the connecting seat 6, and the inner thread sleeve of the nut 11 is provided with a threaded rod 10, and the ends of the two threaded rods 10 close to each other are rotatably connected to a movable plate 14, and the inner side of the movable plate 14 is fixedly connected to a clamping plate 12, and the top and the bottom of the drill bit 7 are provided with a clamping groove 13, and the two clamping plates 12 are respectively movably clamped in the corresponding clamping grooves 13. When the drill bit 7 needs to be replaced, the threaded rod 10 is rotated to tighten the nut 1 1, the threaded rod 10 will move outward in a spiral manner, and the threaded rod 10 drives the movable plate 14 and the clamping plate 12 to move outward and disengage from the clamping slot 13, so that the drill bit 7 is not locked. At this time, the drill bit 7 can be pulled out for replacement, and then the new drill bit 7 is inserted into the connecting seat 6, and the threaded rod 10 is tightened, so that the two threaded rods 10 drive the two clamping plates 12 to move inward and clamp in the clamping slot 13 to fix the drill bit 7, which is not only convenient for replacing the drill bit 7, but also more firmly and stably than the elastic clamping design, thereby ensuring the firmness and stability of the connection between the drill bit and the connecting seat.

[0032] In the utility model, two guide rods 16 are fixedly connected to the bottom inner wall and the top inner wall of the groove 15, and the movable plate 14 is slidably sleeved on the outer sides of the two guide rods 16, so as to guide the movable plate 14 so that it does not rotate with the threaded rod 10.

[0033] In the utility model, the ends of the two threaded rods 10 that are away from each other are fixedly connected with hand wheels to facilitate the rotation of the threaded rods 10 .

[0034] In the utility model, the lubrication assembly includes an oil inlet pipe 17, which is fixedly connected to the top of the bearing seat 5, and the bottom end of the oil inlet pipe 17 is fixedly connected to a cavity 21, and a plurality of through holes 20 are fixedly connected on the bottom inner wall of the cavity 21, and the cavity 21 is arranged in the bearing seat 5, and a plurality of through holes 20 are arranged between the bearing seat 5 and the bearing outer ring 18, and the through holes 20 are connected to the connection between the bearing outer ring 18 and the bearing inner ring 19. When it is necessary to lubricate the connection between the bearing inner ring 19 and the bearing outer ring 18, the sealing cover 8 is unscrewed, and the lubricating oil is injected from the oil inlet pipe 17 into the cavity 21, and finally flows from the plurality of through holes 20 to the connection between the bearing inner ring 19 and the bearing outer ring 18, so that the connection between the bearing inner ring 19 and the bearing outer ring 18 can be well lubricated, the wear of the bearing is reduced, and the service life of the bearing is ensured.

[0035] In the utility model, a sealing cover 8 is threadedly connected to the outer side of the top end of the oil inlet pipe 17, so as to seal the oil inlet pipe 17 conveniently and avoid the volatilization and waste of lubricating oil.

[0036] The technical progress achieved by the utility model relative to the prior art is: during operation, when it is necessary to lubricate the connection between the bearing inner ring 19 and the bearing outer ring 18, the sealing cover 8 is unscrewed, and the lubricating oil is injected into the cavity 21 from the oil inlet pipe 17, and finally flows from the multiple through holes 20 to the connection between the bearing inner ring 19 and the bearing outer ring 18, thereby being able to well lubricate the connection between the bearing inner ring 19 and the bearing outer ring 18, reducing the wear of the bearing and ensuring the service life of the bearing. The left hand grip 3 and the upper hand grip 4 make it convenient for personnel to hold the device for drilling, and the rubber sleeve improves the comfort of the personnel holding the device, and the motor 2 drives the rotation of the drive shaft 9, the connecting seat 6 and the drill bit 7, and the rotating drill bit 7 can be used for drilling. The drill bit 7 is drilled and replaced by the threaded rod 10, and when the drill bit 7 needs to be replaced, the threaded rod 10 is rotated by the hand wheel. Under the action of the nut 11, the threaded rod 10 will move outward in a spiral manner. Guided by the guide rod 16, the threaded rod 10 drives the movable plate 14 and the clamping plate 12 to move outward and disengage from the clamping slot 13, so that the drill bit 7 is not locked. At this time, the drill bit 7 can be pulled out for replacement, and then the new drill bit 7 is inserted into the connecting seat 6, and the threaded rod 10 is tightened, so that the two threaded rods 10 drive the two clamping plates 12 to move inward and clamp in the clamping slot 13 to fix the drill bit 7. It is not only convenient to replace the drill bit 7, but also compared with the elastic clamping, the design is more firmly and stably fixed, thereby ensuring the firmness and stability of the connection between the drill bit and the connecting seat.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A handheld device for rotary motion, characterized in that: The invention comprises a housing (1) and a drill bit (7), wherein a motor (2) is fixedly connected to the housing (1), a drive shaft (9) is fixedly connected to the output shaft of the motor (2), a bearing seat (5) is fixedly connected to one side of the housing (1), a bearing outer ring (18) is fixedly connected to the bearing seat (5), a bearing inner ring (19) is rotatably connected to the bearing outer ring (18), the drive shaft (9) is fixedly sleeved in the bearing inner ring (19), a lubrication component is arranged between the bearing seat (5), the bearing outer ring (18) and the bearing inner ring (19), one end of the drive shaft (9) is fixedly connected to a connecting seat (6), a stable disassembly assembly is arranged between the connecting seat (6) and the drill bit (7), a hand-held assembly is arranged on the housing (1), grooves (15) are provided on the top inner wall and the bottom inner wall of the connecting seat (6), and the stable disassembly assembly comprises two nuts (11), the two nuts (11) are respectively fixedly connected to the connecting seat (6) and the drill bit (7). The nut (11) is connected to the top and bottom of the connection seat (6), the inner thread sleeve of the nut (11) is provided with a threaded rod (10), the ends of the two threaded rods (10) close to each other are rotatably connected to a movable plate (14), the inner side of the movable plate (14) is fixedly connected to a clamping plate (12), the top and bottom of the drill bit (7) are provided with a clamping groove (13), the two clamping plates (12) are respectively movably clamped in the corresponding clamping grooves (13), and the lubrication assembly includes an oil inlet pipe (17). The oil inlet pipe (17) is fixedly connected to the top of the bearing seat (5); the bottom end of the oil inlet pipe (17) is fixedly connected to a cavity (21); a plurality of through holes (20) are fixedly connected on the bottom inner wall of the cavity (21); the cavity (21) is arranged in the bearing seat (5); the plurality of through holes (20) are provided between the bearing seat (5) and the bearing outer ring (18); and the through holes (20) are connected to the connection between the bearing outer ring (18) and the bearing inner ring (19).

2. A handheld device for rotary motion according to claim 1, characterized in that: The handheld assembly comprises a left handheld portion (3) and an upper handheld portion (4) fixedly connected, wherein the left handheld portion (3) is fixedly connected to one side of the housing (1), and the upper handheld portion (4) is fixedly connected to the top of the housing (1).

3. A handheld device for rotary motion according to claim 2, characterized in that: The outer sides of the upper grip part (4) and the left grip part (3) are both fixedly sleeved with rubber sleeves.

4. A handheld device for rotary motion according to claim 1, characterized in that: Two guide rods (16) are fixedly connected on the bottom inner wall and the top inner wall of the groove (15), and the movable plate (14) is slidably sleeved on the outer sides of the two guide rods (16).

5. A handheld device for rotary motion according to claim 1, characterized in that: The ends of the two threaded rods (10) that are away from each other are both fixedly connected with a hand wheel.

6. A handheld device for rotary motion according to claim 1, characterized in that: The top end of the oil inlet pipe (17) is threadedly connected to a sealing cover (8) on the outside.

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