Handheld angle grinder

Abstract

The utility model relates to a handheld angle grinder which comprises an angle grinder body, an adjusting mechanism is arranged on the angle grinder body, the adjusting mechanism comprises an inserting rod, a rotating sleeve, a handle, a positioning disc, a telescopic rod, a telescopic spring, a positioning head and a spring, the inserting rod is in threaded connection with the angle grinder body, the rotating sleeve is rotationally connected with the inserting rod, and the handle is arranged on the handle. The handle is installed on the rotating sleeve, the positioning disc is installed on the inserting rod, the telescopic hole is formed in the inner wall of the rotating sleeve, when relative rotation is needed, only the unlocking sleeve needs to be inserted into the rotating sleeve, the unlocking sleeve can abut against the positioning head, and therefore fixation between the positioning head and the positioning hole can be unlocked; and therefore, the positioning disc and the rotating sleeve rotate relatively, the rotating effect is guaranteed, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle grinders, in particular to a handheld angle grinder. Background Art

[0002] In the current technological environment, angle grinder is a widely used tool in industrial manufacturing and daily repairs. Its functionality and diversity make it an essential equipment in many workplaces. However, there are some problems and challenges in the use of existing angle grinders.

[0003] First of all, the operation method of the angle grinder. In some specific work scenarios, the operator may need to keep his hands in a fixed state to ensure precise operation and cutting and avoid problems caused by misoperation. In other cases, the operator may need to keep his hands in a rotating state to more effectively complete certain specific work tasks, such as grinding and polishing.

[0004] However, the existing angle grinder design cannot easily adjust these two states, namely the fixed state and the rotating state, which means that users may not be able to flexibly select and switch the operation mode according to specific work needs. This problem may affect the user's work efficiency and may even affect the accuracy and safety of the operation. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a handheld angle grinder to solve the technical problem that the handle cannot be adjusted in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hand-held angle grinder, comprising an angle grinder body, an adjusting mechanism is arranged on the angle grinder body, the adjusting mechanism comprises an insertion rod, a rotating sleeve, a handle, a positioning plate, a telescopic rod, a telescopic spring, a positioning head and a spring, the insertion rod is threadedly connected to the angle grinder body, the rotating sleeve is rotatably connected to the insertion rod, the handle is installed on the rotating sleeve, the positioning plate is installed on the insertion rod, a telescopic hole is opened on the inner wall of the rotating sleeve, the telescopic rod is slidably connected in the telescopic hole, one end of the telescopic spring is connected to the telescopic rod, and the other end of the telescopic spring abuts in the telescopic hole, the positioning head is installed on the telescopic rod, a positioning hole is opened on the positioning plate, the positioning head abuts in the positioning hole, one end of the spring abuts on the rotating sleeve, and the other end of the spring is fixed on the positioning plate.

[0007] Preferably, an unfastening sleeve is provided on the rotating sleeve, the rotating sleeve is rotatably connected in the unfastening sleeve, the unfastening sleeve abuts against the positioning head, and the design of the unfastening sleeve ensures the convenience of unfastening.

[0008] It is further preferred that a wire holding mechanism is provided on the angle grinder body, and the wire holding mechanism includes a wire holding tube, a reducing block and a holding block. The wire holding tube is threadedly connected to the angle grinder body, the reducing block is installed on the inner wall of the wire holding tube, and the holding block is slidably connected to the reducing block. The design of the wire holding mechanism ensures the stability of the wire holding.

[0009] It is further preferred that an intermediate sleeve is slidably provided inside the wire holding tube, a thrust bearing is provided at the upper end of the intermediate sleeve, the threaded tube is threadedly connected to the wire holding tube, and the threaded tube abuts against the thrust bearing, and the design of the intermediate sleeve ensures the continuity of the wire holding.

[0010] It is further preferred that a limiting ring is provided on the outer wall of the wire holding tube, the limiting ring is fitted on the angle grinder body, and the design of the limiting ring ensures the stability of the wire holding tube.

[0011] In a further preferred embodiment, an insertion hole is provided on the card block, a card connector is slidably provided in the insertion hole, the card connector presses against the external cable, and the design of the card connector reduces local pressure.

[0012] In a further preferred embodiment, a push spring is provided on the clamping joint, a bottom ring is provided on the push spring, and the bottom ring is pressed into the insertion hole. The design of the push spring ensures the fixing effect.

[0013] Compared with the prior art, the utility model provides a handheld angle grinder, which has the following beneficial effects:

[0014] The fixing mechanism is designed so that when relative rotation is required, you only need to insert the unlocking sleeve into the rotating sleeve. The unlocking sleeve will press against the positioning head, thereby releasing the fixation between the positioning head and the positioning hole, thereby allowing relative rotation between the positioning disk and the rotating sleeve, thereby ensuring the rotation effect and improving the convenience of use.

[0015] The cable clamping mechanism is designed so that when the cable needs to be fixed, multiple clamping blocks will shrink along the reducing block, and then the clamping connector on the clamping block will be pressed against the cable. Multiple clamping connectors can reduce local pressure, thereby avoiding damage to the cable and ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a handheld angle grinder in the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the wire clamping mechanism in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the middle card connector of the utility model;

[0019] Figure 4It is a cross-sectional structural schematic diagram of the fixing mechanism in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the insertion rod in the utility model.

[0021] In the figure: 1. Angle grinder body; 2. Insert rod; 3. Rotating sleeve; 4. Handle; 5. Positioning plate; 6. Telescopic rod; 7. Telescopic spring; 8. Positioning head; 9. Spring; 10. Telescopic hole; 11. Positioning hole; 12. Unlocking sleeve; 13. Wire clamping tube; 14. Reducer; 15. Clamping block; 16. Intermediate sleeve; 17. Thrust bearing; 18. Limiting ring; 19. Insert hole; 20. Clamp joint; 21. Thrust spring; 22. Bottom ring; 23. Threaded tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] See also Figure 1-5A handheld angle grinder comprises an angle grinder body 1, on which an adjustment mechanism is arranged, the adjustment mechanism comprising an insertion rod 2, a rotating sleeve 3, a handle 4, a positioning disc 5, a telescopic rod 6, a telescopic spring 7, a positioning head 8 and a spring 9, the insertion rod 2 is threadedly connected to the angle grinder body 1, the rotating sleeve 3 is rotatably connected to the insertion rod 2, the handle 4 is mounted on the rotating sleeve 3, the positioning disc 5 is mounted on the insertion rod 2, a telescopic hole 10 is provided on the inner wall of the rotating sleeve 3, the telescopic rod 6 is slidably connected in the telescopic hole 10, one end of the telescopic spring 7 is connected to the telescopic rod 6, the other end of the telescopic spring 7 abuts in the telescopic hole 10, the positioning head 8 is mounted on the telescopic rod 6, a positioning hole 11 is provided on the positioning disc 5, the positioning head 8 abuts in the positioning hole 11, one end of the spring 9 abuts in the rotating sleeve 3, and the positioning disc 5 is provided with a positioning hole 11. The positioning head 8 abuts in the positioning hole 11. On the rotating sleeve 3, the other end of the spring 9 is fixed on the positioning disk 5. An unfastening sleeve 12 is provided on the rotating sleeve 3. The rotating sleeve 3 is rotatably connected in the unfastening sleeve 12, and the unfastening sleeve 12 abuts against the positioning head 8. When using the angle grinder, when the handle 4 needs to be fixed, the unfastening sleeve 12 is pulled out. At this time, the positioning head 8 will be pressed into the positioning hole 11 by the action of the telescopic spring 7, so the rotating sleeve 3 and the positioning disk 5 will be fixed to each other. Since the handle 4 is installed on the rotating sleeve 3, it will be fixed. When relative rotation is required, it only needs to be inserted into the rotating sleeve 3. The unfastening sleeve 12 will press on the positioning head 8, so the fixation between the positioning head 8 and the positioning hole 11 will be unfastened, so that the positioning disk 5 and the rotating sleeve 3 are relatively rotated, thereby ensuring the rotation effect.

[0025] The angle grinder body 1 is provided with a wire clamping mechanism, which includes a wire clamping tube 13, a reducing block 14 and a clamping block 15. The wire clamping tube 13 is threadedly connected to the angle grinder body 1, and the reducing block 14 is installed on the inner wall of the wire clamping tube 13. The clamping block 15 is slidably connected to the reducing block 14. An intermediate sleeve 16 is slidably provided in the wire clamping tube 13, and a thrust bearing 17 is provided at the upper end of the intermediate sleeve 16. The threaded tube 23 is threadedly connected to the wire clamping tube 13, and the threaded tube 23 abuts against the thrust bearing 17. A limiting ring 18 is provided on the outer wall of the wire clamping tube 13, and the limiting ring 18 is attached to the angle grinder body 1. An insertion hole 19 is opened on the clamping block 15, and the insertion hole 19 slides inside. A card joint 20 is provided, and the card joint 20 is pressed against the external cable. A push spring 21 is provided on the card joint 20, and a bottom ring 22 is provided on the push spring 21. The bottom ring 22 is pressed against the insertion hole 19. When the cable needs to be fixed, since the threaded tube 23 is threadedly connected to the card tube 13, the thrust bearing 17 will be pushed downward, and the thrust bearing 17 will be pressed on the middle sleeve 16, and then the card block 15 will be pressed against the middle sleeve 16. Multiple card blocks 15 will shrink along the reducer 14, and then the card joint 20 on the card block 15 will be pressed against the cable. The local pressure can be reduced by multiple card joints 20, thereby avoiding damage to the cable and ensuring the safety of use.

[0026] Embodiment 2:

[0027] See also Figure 1-5 On the basis of Example 1, when the angle grinder is used, when the handle 4 needs to be fixed, the unlocking sleeve 12 is pulled out. At this time, the positioning head 8 will be pressed against the positioning hole 11 under the action of the telescopic spring 7, so the rotating sleeve 3 and the positioning disk 5 will be fixed to each other. Since the handle 4 is installed on the rotating sleeve 3, it will be fixed. When relative rotation is required, it is only necessary to insert the unlocking sleeve 12 into the rotating sleeve 3. The unlocking sleeve 12 will press against the positioning head 8, so the fixation between the positioning head 8 and the positioning hole 11 will be unlocked, so that the positioning disk 5 and the rotating sleeve 3 can rotate relative to each other, thereby ensuring the rotation effect.

[0028] Embodiment 3:

[0029] See also Figure 1-5 On the basis of Example 2, when the cable needs to be fixed, since the threaded tube 23 is threadedly connected to the wire clamping tube 13, the thrust bearing 17 will be pushed downward, and the thrust bearing 17 will be pressed on the intermediate sleeve 16, and then the clamping block 15 will be pressed on the intermediate sleeve 16. Multiple clamping blocks 15 will shrink along the reducing block 14, and then the clamping connector 20 on the clamping block 15 will be pressed on the cable. The local pressure can be reduced by multiple clamping connectors 20, thereby avoiding damage to the cable and ensuring safety in use.

[0030] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A handheld angle grinder, comprising an angle grinder body (1), characterized in that: An angle grinder body (1) is provided with an adjustment mechanism, which comprises an insertion rod (2), a rotating sleeve (3), a handle (4), a positioning plate (5), a telescopic rod (6), a telescopic spring (7), a positioning head (8) and a spring (9); the insertion rod (2) is threadedly connected to the angle grinder body (1); the rotating sleeve (3) is rotatably connected to the insertion rod (2); the handle (4) is mounted on the rotating sleeve (3); the positioning plate (5) is mounted on the insertion rod (2); and the inner wall of the rotating sleeve (3) is provided with a positioning plate (5). A telescopic hole (10) is provided, a telescopic rod (6) is slidably connected in the telescopic hole (10), one end of a telescopic spring (7) is connected to the telescopic rod (6), the other end of the telescopic spring (7) abuts in the telescopic hole (10), a positioning head (8) is installed on the telescopic rod (6), a positioning hole (11) is provided on the positioning plate (5), the positioning head (8) abuts in the positioning hole (11), one end of a spring (9) abuts on the rotating sleeve (3), and the other end of the spring (9) is fixed on the positioning plate (5).

2. A handheld angle grinder according to claim 1, characterized in that: The rotating sleeve (3) is provided with an unfastening sleeve (12), the rotating sleeve (3) is rotatably connected in the unfastening sleeve (12), and the unfastening sleeve (12) abuts against the positioning head (8).

3. A handheld angle grinder according to claim 1, characterized in that: The angle grinder body (1) is provided with a wire clamping mechanism, which comprises a wire clamping tube (13), a reducing block (14) and a clamping block (15); the wire clamping tube (13) is threadedly connected to the angle grinder body (1); the reducing block (14) is mounted on the inner wall of the wire clamping tube (13); and the clamping block (15) is slidably connected to the reducing block (14).

4. A handheld angle grinder according to claim 3, characterized in that: An intermediate sleeve (16) is slidably arranged inside the wire clamping tube (13), a thrust bearing (17) is arranged at the upper end of the intermediate sleeve (16), a threaded tube (23) is threadedly connected to the wire clamping tube (13), and the threaded tube (23) abuts against the thrust bearing (17).

5. A handheld angle grinder according to claim 4, characterized in that: A limiting ring (18) is provided on the outer wall of the wire clamping tube (13), and the limiting ring (18) is fitted on the angle grinder body (1).

6. A handheld angle grinder according to claim 5, characterized in that: The card block (15) is provided with an insertion hole (19), a card connector (20) is slidably provided in the insertion hole (19), and the card connector (20) is pressed against an external cable.

7. A handheld angle grinder according to claim 6, characterized in that: The clamping joint (20) is provided with a push spring (21), and the push spring (21) is provided with a bottom ring (22), and the bottom ring (22) is pressed into the insertion hole (19).

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