Pneumatic tool capable of replacing grinding rod without wrench

Abstract

The utility model discloses a pneumatic tool capable of replacing a grinding rod without using a wrench, which relates to the field of pneumatic tools, and comprises a pneumatic tool body, the pneumatic tool body comprises a handle, a metal connecting block arranged at one end of the handle, an air pipe interface arranged at one end of the metal connecting block, and a machine head arranged at the other end of the handle, the polishing rod is arranged at the other end of the machine head, and a quick locking mechanism is arranged on the side wall of the machine head in a penetrating mode. According to the pneumatic tool, the polishing rod can be quickly and easily disassembled and replaced without a wrench, and the use convenience of the pneumatic tool is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of pneumatic tools, and specifically relates to a pneumatic tool that can replace the grinding rod without using a wrench. Background Technique

[0002] Pneumatic tools refer to tools that generate power through compressed air or gas to complete work. They are widely used in industrial production and household use, and have the characteristics of high work efficiency, durability, and good use safety. Pneumatic tools are provided with compressed air by a compressor or an air pump and send it into the pneumatic system of the tool. The pneumatic system inside the tool utilizes the energy of the compressed air to generate power and drive the tool to complete specific work. Specifically, after the compressed air enters the cylinder, it pushes the piston to move, and then transmits the power to the working part of the tool through a mechanical transmission device.

[0003] At present, the disassembly and replacement of traditional pneumatic tools at the working part, that is, the grinding end position, are very troublesome and require the assistance of tools such as wrenches for replacement. When manually using a wrench for replacement, it is easy to damage the components of the working part of the pneumatic tool due to the inability to control the clamping force well, and it is very inconvenient. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a pneumatic tool that can replace the grinding rod without using a wrench to solve the technical problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pneumatic tool that can replace the grinding rod without using a wrench, including a pneumatic tool body, the pneumatic tool body includes a handle, a metal connection block provided at one end of the handle, an air pipe interface provided at one end of the metal connection block, a machine head provided at the other end of the handle, and a grinding rod provided at the other end of the machine head, and a quick lock mechanism is penetrated through the side wall of the machine head.

[0007] Preferably, a U-shaped hanging ring is provided on the side wall of the metal connection block; the U-shaped hanging ring is used in cooperation with an S-shaped hook.

[0008] Preferably, a bearing is provided in the inner cavity of the machine head, an execution rotor is provided on the inner wall of the bearing, and a tightening clamp block is threadedly connected to the outer wall of one end of the execution rotor.

[0009] Preferably, a connecting support rod is provided at one end of the grinding rod, and the connecting support rod is embedded in the execution rotor.

[0010] Preferably, the quick lock mechanism includes a sleeve threadedly connected to one end of the outer wall of the machine head, a groove penetrated through the top of the sleeve, a return spring provided on the inner wall of the groove, and a pin rod penetrated through the bottom of the groove.

[0011] Preferably, a V-shaped groove is embedded at one end of the top of the actuating rotor, and the V-shaped groove is located below the latch rod.

[0012] Preferably, the actuating rotor is driven by a pneumatic motor disposed in the inner cavity of the handle.

[0013] In summary, the technical solution mainly has the following beneficial effects:

[0014] Compared with the traditional technology, this pneumatic tool is ingeniously designed through the quick-lock mechanism and some parts of the machine head, enabling the grinding rod to be quickly and easily disassembled and replaced without using a wrench, which increases the convenience of using the pneumatic tool;

[0015] In addition, a U-shaped hanging ring is provided on the pneumatic tool body. In actual use, it is used in cooperation with an S-shaped hook, which increases the convenient storage property and further improves the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a plan view of the structure of the pneumatic tool body of the present utility model;

[0017] Figure 2 is a specific structure cross-sectional view of the machine head and the grinding rod of the present utility model;

[0018] Figure 3 is of the present utility model Figure 1 enlarged view at A in;

[0019] Figure 4 is an axonometric view of the connection structure between the pneumatic tool body and the S-shaped hook of the present utility model.

[0020] BRIEF DESCRIPTION OF THE DRAWINGS: 10. Pneumatic tool body; 11. Handle; 12. Metal connecting block; 13. Air pipe interface; 14. Machine head; 15. Grinding rod; 20. Quick-lock mechanism; 21. Sleeve; 22. Groove; 23. Return spring; 24. Latch rod; 30. S-shaped hook; 121. U-shaped hanging ring; 141. Bearing; 142. Actuating rotor; 143. Tightening clamp block; 144. V-shaped groove; 151. Connecting support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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.

[0022] Embodiment

[0023] As Figure 1 , 2, as shown in FIGS. 3, it includes a pneumatic tool body 10. The pneumatic tool body 10 includes a handle 11, a metal connecting block 12 at one end of the handle 11, an air pipe interface 13 at one end of the metal connecting block 12, a nose 14 at the other end of the handle 11, and a grinding rod 15 at the other end of the nose 14. A quick-lock mechanism 20 is penetrated through the side wall of the nose 14, a bearing 141 is arranged in the inner cavity of the nose 14, an actuating rotor 142 is arranged on the inner wall of the bearing 141. A tightening clamp block 143 is threadedly connected to the outer wall of one end of the actuating rotor 142. A connecting support rod 151 is arranged at one end of the grinding rod 15. The connecting support rod 151 is arranged inside the actuating rotor 142. The quick-lock mechanism 20 includes a sleeve 21 threadedly connected to one end of the outer wall of the nose 14, a groove 22 penetrating through the top of the sleeve 21, a return spring 23 arranged on the inner wall of the groove 22, and a pin rod 24 penetrating through the bottom of the groove 22. A V-shaped groove 144 is embedded at the top of one end of the actuating rotor 142, and the V-shaped groove 144 is located below the pin rod 24.

[0024] It should be noted that in this embodiment, when the grinding rod 15 needs to be replaced, the air compressor stops working. First, press the pin rod 24 in the quick-lock mechanism 20. The pin rod 24 slides on the inner wall of the groove 22 and moves downward until the bottom of the pin rod 24 is embedded in the V-shaped groove 144 embedded at the top of one end of the actuating rotor 142. The relative friction between the V-shaped groove 144 and the pin rod 24 makes the actuating rotor 142 unable to rotate. At this time, loosen the side wall of the connecting support rod 151 of the grinding rod 15 by screwing the tightening clamp block 143, pull out and replace the grinding rod 15, tighten the tightening clamp block 143 again, and then release the pressing on the pin rod 24. The return spring 23 drives the pin rod 24 to return to its original position.

[0025] As Figure 1 , 4 shown, a U-shaped hanging ring 121 is arranged on the side wall of the metal connecting block 12; the U-shaped hanging ring 121 is used in cooperation with an S-shaped hook 30.

[0026] It should be noted that in this embodiment, the U-shaped hanging ring 121 on the side wall of the metal connecting block 12 is used in cooperation with the S-shaped hook 30. In actual use, the convenience of using the pneumatic tool body 10 is increased.

[0027] As Figure 1 , 2 shown, it includes a pneumatic tool body 10. The pneumatic tool body 10 includes a handle 11, a metal connecting block 12 at one end of the handle 11, an air pipe interface 13 at one end of the metal connecting block 12, a nose 14 at the other end of the handle 11, and a grinding rod 15 at the other end of the nose 14. The actuating rotor 142 is driven by a pneumatic motor arranged in the inner cavity of the handle 11.

[0028] It should be noted that in this embodiment, the pneumatic tool body 10 receives compressed air from an air compressor through an air pipe; this compressed air is filtered and regulated to ensure its purity and stable pressure;

[0029] The filtered compressed air enters the inside of the pneumatic motor through the air pipe interface 13. In the pneumatic motor, the air is guided to the nose 14 part, and by pushing the actuating rotor 142 to rotate at a high speed. The rotation of the actuating rotor 142 is converted from the energy of the compressed air. In this process, the pressure energy of the compressed air is converted into mechanical energy. The actuating rotor 142 transfers the rotational kinetic energy to the grinding rod 15. This transmission process ensures that the grinding head can work at a stable rotational speed.

[0030] After receiving the rotational kinetic energy transmitted by the transmission device, the grinding rod 15 starts to rotate at a high speed. This high-speed rotation enables the grinding disc or grinding wheel to contact the surface of the workpiece for processing operations such as grinding, polishing, and deburring.

[0031] The working principle of the present utility model is as follows:

[0032] First of all, the pneumatic tool body 10 receives compressed air from an air compressor through an air pipe; this compressed air is filtered and regulated to ensure its purity and stable pressure;

[0033] The filtered compressed air enters the inside of the pneumatic motor through the air pipe interface 13. In the pneumatic motor, the air is guided to the nose 14 part, and by pushing the actuating rotor 142 to rotate at a high speed. The rotation of the actuating rotor 142 is converted from the energy of the compressed air. In this process, the pressure energy of the compressed air is converted into mechanical energy. The actuating rotor 142 transfers the rotational kinetic energy to the grinding rod 15. This transmission process ensures that the grinding head can work at a stable rotational speed.

[0034] Among them, when the grinding rod 15 needs to be replaced, the air compressor stops working. First, press the pin rod 24 in the quick-lock mechanism 20. The pin rod 24 slides on the inner wall of the groove 22 and moves downward until the bottom of the pin rod 24 is embedded in the V-shaped groove 144 at one end of the top of the actuating rotor 142. The relative friction between the V-shaped groove 144 and the pin rod 24 makes the actuating rotor 142 unable to rotate. At this time, loosen the side wall of the connecting support rod 151 of the grinding rod 15 by turning the tightening clamp block 143, pull out the grinding rod 15 and replace it, tighten the tightening clamp block 143 again, and then release the pressing on the pin rod 24. The return spring 23 drives the pin rod 24 to return to its original position;

[0035] Secondly, the U-shaped hanging ring 121 on the side wall of the metal connecting block 12 is used in cooperation with the S-shaped hook 30, which increases the convenience of use of the pneumatic tool body 10 in actual use;

[0036] Finally, after receiving the rotational kinetic energy transmitted by the transmission device, the grinding rod 15 starts to rotate at a high speed. This high-speed rotation enables the grinding disc or grinding wheel to contact the surface of the workpiece, performing processing operations such as grinding, polishing, and deburring.

[0037] The above embodiments are only used to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the present invention.

Claims

1. A pneumatic tool capable of replacing a grinding rod without using a wrench, comprising a pneumatic tool body (10), characterized in that The pneumatic tool body (10) comprises a handle (11), a metal connecting block (12) arranged at one end of the handle (11), an air pipe interface (13) arranged at one end of the metal connecting block (12), a machine head (14) arranged at the other end of the handle (11), and a grinding rod (15) arranged at the other end of the machine head (14), and a quick lock mechanism (20) is penetrated through the side wall of the machine head (14).

2. A pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 1, characterized in that: The side wall of the metal connection block (12) is provided with a U-shaped hanging ring (121); the U-shaped hanging ring (121) is used in conjunction with the S-shaped hook (30).

3. A pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 1, characterized in that: A bearing (141) is provided in the inner cavity of the machine head (14), an actuating rotor (142) is provided on the inner wall of the bearing (141), and a tightening clamp (143) is threadedly connected to the outer wall of one end of the actuating rotor (142).

4. A pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 1, characterized in that: A connecting rod (151) is provided at one end of the polishing rod (15), and the connecting rod (151) is embedded in the execution rotor (142).

5. The pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 1, characterized in that: The quick lock mechanism (20) comprises a sleeve (21) threadedly connected to one end of the outer wall of the machine head (14), a groove (22) penetrating the top of the sleeve (21), a return spring (23) arranged on the inner wall of the groove (22), and a latch rod (24) penetrating the bottom of the groove (22).

6. The pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 3, characterized in that: A V-shaped groove (144) is embedded at one end of the top of the execution rotor (142), and the V-shaped groove (144) is located below the latch rod (24).

7. The pneumatic tool capable of replacing a grinding rod without using a wrench according to claim 3, characterized in that: The actuator rotor (142) is driven by a pneumatic motor disposed in the inner cavity of the handle (11).

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