Angle grinder with self-locking protection structure

Abstract

The utility model discloses an angle grinder with a self-locking protection structure, which comprises an angle grinder body, a first mounting groove is arranged on the angle grinder body, a switch body is hinged in the first mounting groove, a fourth mounting groove is arranged on the switch body, a mistaken touch prevention switch is hinged in the fourth mounting groove, and a connecting rod is arranged on the mistaken touch prevention switch. The two ends of the connecting rod are fixedly connected with springs, and the other ends of the springs are fixedly connected into the fourth mounting grooves. According to the utility model, the anti-mistaken-touch switch is additionally arranged on the switch body, and the switch body cannot be triggered when the anti-mistaken-touch switch is turned on, so that two actions of turning off the anti-mistaken-touch switch and pressing the switch body need to be executed during startup operation; the two switch elements can be automatically reset by utilizing the elastic force of the spring, and the design can effectively prevent the switch body from being touched by mistake while ensuring the operation convenience, so that the use safety of the angle grinder body is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-station sealing machines, and particularly relates to a angle grinder with a self-locking protection structure. Background Technique

[0002] An electric angle grinder can perform grinding, cutting, rust removal, polishing and other processing operations on metal components by means of tools such as a high-speed rotating thin grinding wheel, a rubber grinding wheel, and a wire wheel. During the operation, the start and stop of the electric angle grinder are both controlled by a switch. To avoid misoperation, the existing electric angle grinders generally adopt a self-locking switch, but the existing self-locking switches are mostly single-action structures, which are extremely likely to cause accidental startup, thus posing great potential safety hazards. Content of the Utility Model

[0003] The purpose of the utility model is to provide an angle grinder with a self-locking protection structure to solve the problems raised in the above background technique.

[0004] To solve the above technical problems, the utility model provides the following technical solution: An angle grinder with a self-locking protection structure, including an angle grinder body. A first installation groove is opened on the angle grinder body. A switch body is hinged in the first installation groove. A fourth installation groove is opened on the switch body. An anti-misoperation switch is hinged in the fourth installation groove. A connecting rod is installed on the anti-misoperation switch. Springs are fixedly connected to both ends of the connecting rod, and the other ends of the springs are fixedly connected to the fourth installation groove. A first fixing block is fixedly connected in the first installation groove. A second limiting groove is opened on the upper surface of the first fixing block. A first stopper is slidably connected in the second limiting groove, and the first stopper is fixedly connected to the lower surface of the anti-misoperation switch.

[0005] Preferably, a second installation groove is provided on one side of the first fixing block. A third installation groove is provided on one side of the second installation groove, and both the second installation groove and the third installation groove are opened in the first installation groove. A power switch is fixedly connected in the second installation groove. A self-locking switch is fixedly connected in the third installation groove.

[0006] Preferably, a trigger block is fixedly connected to the lower surface of the switch body corresponding to the position of the power switch. A locking block is fixedly connected to the lower surface of the switch body corresponding to the position of the self-locking switch.

[0007] Preferably, a first connecting shaft is fixedly connected to the switch body, and the first connecting shaft is hinged in the first installation groove.

[0008] Preferably, limiting blocks are fixedly connected to both outer walls of the switch body. First limiting grooves are opened on both inner walls of the first installation groove corresponding to the positions of the limiting blocks, and the limiting blocks are arranged in the first limiting grooves.

[0009] Preferably, a second fixing block is fixedly connected to the lower surface of the anti-misoperation switch, and the first stopper is arranged on one side of the second fixing block. A second stopper is fixedly connected to the other side of the second fixing block, and the second stopper is arranged in the fourth installation groove.

[0010] Preferably, a through hole is formed in the second fixing block. A second connecting shaft is sleeved in the through hole, and the second connecting shaft is fixedly connected in the fourth installation groove. A spring is sleeved on the second connecting shaft. A groove is formed in the second fixing block, and the connecting rod is arranged in the groove.

[0011] The angle grinder with a self-locking protection structure provided by the present invention has the following advantages: An anti-misoperation switch is added to the switch body of the present invention. When the anti-misoperation switch is turned on, the switch body cannot be triggered. Therefore, when starting the machine for operation, two actions of turning to close the anti-misoperation switch and pressing the switch body need to be performed. After pressing the switch body again to stop the machine, the two switch components can be automatically reset by the elastic force of the spring. This design can effectively avoid accidental touching of the switch body while ensuring the convenience of operation, thus significantly improving the use safety of the angle grinder body. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is an exploded view of the overall three-dimensional structure of the present invention;

[0014] Figure 2 It is Figure 1 The enlarged structure view of area A in

[0015] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the switch body of the present invention;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the anti-misoperation switch of the present invention.

[0018] In the figure: 1, angle grinder body; 11, first installation groove; 12, first limiting groove; 13, first fixing block; 14, second limiting groove; 15, second installation groove; 16, third installation groove; 17, power switch; 18, self-locking switch; 2, switch body; 21, first connecting shaft; 22, limiting block; 23, fourth installation groove; 24, trigger block; 25, locking block; 3, anti-misoperation switch; 31, second fixing block; 32, through hole; 33, groove; 34, first stop block; 35, second stop block; 36, second connecting shaft; 37, connecting rod; 38, spring. Detailed implementation manner

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to the attached Figure 1 - attached Figure 5, an embodiment provided by the present utility model: an angle grinder with a self-locking protection structure, including an angle grinder body 1. A first installation groove 11 is provided on the angle grinder body 1. A switch body 2 is hinged in the first installation groove 11. A fourth installation groove 23 is provided on the switch body 2. An anti-misoperation switch 3 is hinged in the fourth installation groove 23. A connecting rod 37 is installed on the anti-misoperation switch 3. Both ends of the connecting rod 37 are fixedly connected with springs 38, and the other ends of the springs 38 are fixedly connected in the fourth installation groove 23. A first fixing block 13 is fixedly connected in the first installation groove 11. A second limiting groove 14 is provided on the upper surface of the first fixing block 13. A first stopper 34 is slidably connected in the second limiting groove 14, and the first stopper 34 is fixedly connected to the lower surface of the anti-misoperation switch 3. The first installation groove 11 is used to accommodate the switch body 2, and the fourth installation groove 23 is used to accommodate the anti-misoperation switch 3. The connecting rod 37 and the spring 38 are of an integral structure, forming a torsion spring, which is used to provide a reset elastic force for the anti-misoperation switch 3. The first fixing block 13 limits the first stopper 34 through the second limiting groove 14, so that the switch body 2 cannot be pressed down; A second installation groove 15 is provided on one side of the first fixing block 13. A third installation groove 16 is provided on one side of the second installation groove 15, and both the second installation groove 15 and the third installation groove 16 are provided in the first installation groove 11. A power switch 17 is fixedly connected in the second installation groove 15, and a self-locking switch 18 is fixedly connected in the third installation groove 16. The second installation groove 15 is used to accommodate the power switch 17, and the third installation groove 16 is used to accommodate the self-locking switch 18; A trigger block 24 is fixedly connected to the lower surface of the switch body 2 at a position corresponding to the power switch 17, and a lock block 25 is fixedly connected to the lower surface of the switch body 2 at a position corresponding to the self-locking switch 18. The trigger block 24 is used to trigger the power switch 17, and the self-locking switch 18 is used to lock the lock block 25; A first connecting shaft 21 is fixedly connected to the switch body 2, and the first connecting shaft 21 is hinged in the first installation groove 11. The first connecting shaft 21 is used to realize the hinge between the switch body 2 and the first installation groove 11; Limiting blocks 22 are fixedly connected to both outer walls of the switch body 2. First limiting grooves 12 are provided on both inner walls of the first installation groove 11 at positions corresponding to the limiting blocks 22, and the limiting blocks 22 are arranged in the first limiting grooves 12. The limiting blocks 22 in combination with the first limiting grooves 12 are used to limit the deflection angle of the switch body 2; A second fixing block 31 is fixedly connected to the lower surface of the anti-misoperation switch 3, and the first stopper 34 is arranged on one side of the second fixing block 31. A second stopper 35 is fixedly connected to the other side of the second fixing block 31, and the second stopper 35 is arranged in the fourth installation groove 23. The anti-misoperation switch 3, the second fixing block 31, the first stopper 34 and the second stopper 35 are of an integral structure;A through hole 32 is formed in the second fixing block 31. A second connecting shaft 36 is sleeved in the through hole 32, and the second connecting shaft 36 is fixedly connected to the fourth installation groove 23. A spring 38 is sleeved on the second connecting shaft 36. A groove 33 is formed in the second fixing block 31, and a connecting rod 37 is arranged in the groove 33. The second connecting shaft 36 is used to realize the hinge connection between the second fixing block 31 and the fourth installation groove 23, and the groove 33 is used to accommodate the connecting rod 37.

[0021] Working principle: When using the present utility model, first, it is necessary to turn off the anti-misoperation switch 3, that is, toggle the anti-misoperation switch 3 so that it deflects on the second connecting shaft 36 through the second fixing block 31, and the spring 38 is distorted. The first stop block 34 slides in the second limiting groove 14 on the first fixing block 13 until the second stop block 35 is blocked by the inner wall of the fourth installation groove 23. At this time, the anti-misoperation switch 3 is flush with the switch body 2. Press the upper end of the switch body 2, so that the locking block 25 is inserted into the self-locking switch 18 for locking, and the trigger block 24 triggers the power switch 17, and the power is turned on, and the angle grinder body 1 is powered on to work; after pressing the upper end of the switch body 2 again, the self-locking switch 18 is unlocked. Under the reset action of the spring 38, the anti-misoperation switch 3 automatically deflects and resets, and the switch body 2 deflects and resets through the first connecting shaft 21 until the limiting block 22 is limited by the inner wall of the first limiting groove 12 and the first stop block 34 is limited by the inner wall of the second limiting groove 14. At this time, the trigger block 24 is separated from the power switch 17, and the locking block 25 is separated from the self-locking switch 18, the power is turned off, and the angle grinder body 1 stops power supply. Since the first stop block 34 is limited at this time, the switch body 2 cannot be pressed, so as to realize the self-locking protection function; among them, the upper end of the switch body 2 is the part where the trigger block 24 and the locking block 25 are located. The first installation groove 11 is used to accommodate the switch body 2, the second installation groove 15 is used to accommodate the power switch 17, the third installation groove 16 is used to accommodate the self-locking switch 18, the through hole 32 is used to accommodate the second connecting shaft 36, the groove 33 is used to accommodate the connecting rod 37, the connecting rod 37 and the spring 38 are an integral structure to form a torsion spring, the anti-misoperation switch 3, the second fixing block 31, the first stop block 34 and the second stop block 35 are an integral structure, and the self-locking switch 18 is a prior art and will not be described in detail here.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An angle grinder with a self-locking protection structure, comprising an angle grinder body (1), characterized in that: The angle grinder body (1) is provided with a first mounting groove (11), a switch body (2) is hinged in the first mounting groove (11), a fourth mounting groove (23) is provided on the switch body (2), an anti-mistaken touch switch (3) is hinged in the fourth mounting groove (23), a connecting rod (37) is installed on the anti-mistaken touch switch (3), both ends of the connecting rod (37) are fixedly connected with springs (38), and the other end of the spring (38) is fixedly connected in the fourth mounting groove (23), a first fixing block (13) is fixedly connected in the first mounting groove (11), a second limiting groove (14) is provided on the upper surface of the first fixing block (13), a first stopper (34) is slidably connected in the second limiting groove (14), and the first stopper (34) is fixedly connected to the lower surface of the anti-mistaken touch switch (3).

2. An angle grinder with a self-locking protection structure according to claim 1, characterized in that: A second mounting groove (15) is provided on one side of the first fixing block (13), a third mounting groove (16) is provided on one side of the second mounting groove (15), and the second mounting groove (15) and the third mounting groove (16) are both opened in the first mounting groove (11), a power switch (17) is fixedly connected in the second mounting groove (15), and a self-locking switch (18) is fixedly connected in the third mounting groove (16).

3. An angle grinder with a self-locking protection structure according to claim 1, characterized in that: A trigger block (24) is fixedly connected to a position on the lower surface of the switch body (2) corresponding to the power switch (17), and a locking block (25) is fixedly connected to a position on the lower surface of the switch body (2) corresponding to the self-locking switch (18).

4. An angle grinder with a self-locking protection structure according to claim 3, characterized in that: A first connecting shaft (21) is fixedly connected to the switch body (2), and the first connecting shaft (21) is hinged in the first installation groove (11).

5. An angle grinder with a self-locking protection structure according to claim 4, characterized in that: The switch body (2) is fixedly connected to the outer walls on both sides thereof with limit blocks (22); the inner walls on both sides of the first installation groove (11) are provided with first limit grooves (12) at positions corresponding to the limit blocks (22); and the limit blocks (22) are arranged in the first limit grooves (12).

6. An angle grinder with a self-locking protection structure according to claim 1, characterized in that: The lower surface of the anti-mis-touch switch (3) is fixedly connected to a second fixed block (31), and the first stopper (34) is arranged on one side of the second fixed block (31), and the other side of the second fixed block (31) is fixedly connected to a second stopper (35), and the second stopper (35) is arranged in a fourth mounting groove (23).

7. An angle grinder with a self-locking protection structure according to claim 6, characterized in that: The second fixed block (31) is provided with a through hole (32), a second connecting shaft (36) is sleeved in the through hole (32), and the second connecting shaft (36) is fixedly connected to the fourth mounting groove (23), the spring (38) is sleeved on the second connecting shaft (36), the second fixed block (31) is provided with a groove (33), and the connecting rod (37) is arranged in the groove (33).

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