Gas-cut straight handle type constant-torsion assembly tool according to torsion direction

Abstract

The utility model relates to the technical field of constant torsion assembly tools, and discloses a gas-cut straight handle type constant torsion assembly tool according to the torsion direction, which comprises a protective shell and an assembly mechanism body, the inner wall of the protective shell is sleeved with a plugging base block, the inner wall of the plugging base block is sleeved with a connecting shaft, the outer wall of the connecting shaft is fixedly connected with a transmission shaft seat, and the outer wall of the transmission shaft seat is fixedly connected with a transmission shaft. And a plurality of threaded grooves are formed in the outer wall of the transmission shaft seat. According to the gas cut-off straight handle type constant-torsion assembly tool according to the torsion direction, paired limiting columns are arranged on the outer wall of a pressurizing plate, so that when equipment is ventilated, lifting of a pressure adjusting plate can be limited, buffer springs outside the limiting columns can effectively relieve pressure borne by the limiting columns, and after the equipment completes work, an L-shaped guide plate does not transmit airflow any more, so that the air cut-off straight handle type constant-torsion assembly tool is convenient to use. The stability of the pressure intensity in the equipment is guaranteed, and meanwhile the situation that the screw of the equipment cannot be tightened can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed torque assembly tools, in particular to a gas-off straight-handled fixed torque assembly tool capable of adjusting the torque direction. Background Art

[0002] With the development of the times, various scientific and technological advances are also constantly improving. Tools are indispensable in various work and life. Various assembly tools are also emerging in an endless stream. Among them, electric hand drills are particularly common. Traditional hand drills have a battery at the bottom and a replaceable adjustment head, which is also very convenient to operate.

[0003] When the existing gas-off straight-shank fixed-torque assembly tool with a torque direction according to the torque is working, when tightening the self-tapping screw, the self-tapping screw is subject to great resistance and the tool is easily powered off before the screw reaches the required tightening torque, which easily affects the torque accuracy and safety of the screw tightening. Moreover, when the fixed head works for a long time, the residues and debris adsorbed on the outside of the fixed head are easily worn by the self-tapping screw, resulting in a decrease in the connection stability of the self-tapping screw. Therefore, a gas-off straight-shank fixed-torque assembly tool with a torque direction according to the torque direction is proposed. Utility Model Content

[0004] The utility model provides the following technical solutions: a straight-handled, torque-fixed assembly tool for cutting off air and according to the torque direction, comprising a protective shell and an assembly mechanism body, the inner wall of the protective shell is sleeved with a blocking base block, the inner wall of the blocking base block is sleeved with a connecting shaft, the outer wall of the connecting shaft is fixedly connected with a transmission shaft seat, the outer wall of the transmission shaft seat is provided with a plurality of threaded grooves, the plurality of threaded grooves are distributed in a circular array on the outer wall of the transmission shaft seat, the transmission shaft seat is fixedly connected with a fixed head on a side away from the blocking base block, the connecting shaft is fixedly connected with a driving shaft on a side away from the transmission shaft seat, the outer wall of the driving shaft is fixedly connected with a plurality of force-bearing leaves, and the plurality of force-bearing leaves are distributed in a circular array on the outer wall of the driving shaft.

[0005] As a preferred technical solution of the utility model, the outer wall of the protective shell is fixedly connected to a handle, the outer wall of the protective shell is fixedly connected to a first connecting seat, the outer wall of the first connecting seat is fixedly connected to a limiting shaft, the outer wall of the protective shell is sleeved with a closing cover, the outer wall of the closing cover is fixedly connected to a connecting slot, the outer wall of the closing cover is fixedly connected to a second connecting seat, and the second connecting seat is provided with a threaded button on a side away from the first connecting seat, the threaded button and the limiting shaft are fixed by a threaded connection, and the outer wall of the protective shell is provided with a protective bushing.

[0006] As a preferred technical solution of the present utility model, a pressure box is provided on the inner wall of the protective shell. A pressure pipe is provided on the inner wall of the pressure box. A plurality of pressure holes are formed on the outer wall of the pressure pipe, and the plurality of pressure holes are distributed in a circumferential array on the outer wall of the pressure pipe. A pressure plate is provided on the outer wall of the pressure box, and a pressure relief spring is sleeved on the outer wall of the connecting shaft.

[0007] As a preferred technical solution of the present utility model, a plurality of limiting columns are fixedly connected to the outer wall of the pressure plate. A buffer spring is sleeved on the outer walls of the plurality of limiting columns. An adjusting plate is provided on the outer wall of the limiting column. An adjuster is fixedly connected to the outer wall of the adjusting plate, and the limiting column is slidably connected to the adjusting plate.

[0008] As a preferred technical solution of the present utility model, an L-shaped guiding plate is fixedly connected to the side of the pressure plate away from the pressure box, and the L-shaped guiding plate is slidably connected to the adjusting plate.

[0009] As a preferred technical solution of the present utility model, a plurality of air inlets are formed on the outer wall of the pressure plate, and the plurality of air inlets are symmetrically distributed on the outer wall of the pressure plate, and the air inlets communicate with the pressure pipe.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] 1. For this fixed-torque assembly tool with a gas-cutoff straight handle and button steering, a pair of limiting columns are provided on the outer wall of the pressure plate, so that when the device is ventilated, the lifting of the adjusting plate can be limited. The buffer spring outside the limiting column can effectively relieve the pressure on the limiting column. After the device finishes working, the L-shaped guiding plate no longer transmits air flow, which not only ensures the stability of the internal pressure of the device, but also effectively avoids the situation where the screws of the device cannot be tightened.

[0012] 2. For this fixed-torque assembly tool with a gas-cutoff straight handle and button steering, a plurality of threaded grooves are formed on the outer wall of the transmission shaft seat, so that when the worker operates the device to tighten the screw, the residue generated when the fixing head contacts the screw can be adsorbed and collected by using the threaded grooves. The pressure relief spring can effectively relieve the pressure on the sealing base block when the device is working, thereby improving the protection of the fixing head and the contacting screw when the device is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of a fixed-torque assembly tool with a gas-cutoff straight handle and button steering;

[0014] Figure 2 It is a structural schematic diagram of the pressure box in a fixed-torque assembly tool with a gas-cutoff straight handle and button steering;

[0015] Figure 3Schematic diagram of the structure of a pressure pipe in a fixed-torque assembly tool with a gas-cutoff straight handle and button steering

[0016] Figure 4 Schematic diagram of the structure of the main body of the assembly mechanism in a fixed-torque assembly tool with a gas-cutoff straight handle and button steering

[0017] Figure 5 It is Figure 1 Enlarged view of the structure at A in

[0018] In the figure: 1. Protective shell; 2. Grip; 3. Sealing cover; 4. Connecting notch; 5. Protective bushing; 6. First connecting seat; 7. Limiting shaft; 8. Pressure regulator; 9. Second connecting seat; 10. Threaded knob; 11. Plugging base block; 12. Pressure relief spring; 13. Pressure box; 14. Pressure plate; 15. Limiting column; 16. Buffer spring; 17. L-shaped guide plate; 18. Pressure regulating plate; 19. Air inlet; 20. Pressure pipe; 21. Pressure hole; 22. Main body of the assembly mechanism; 221. Transmission shaft seat; 222. Threaded groove; 223. Fixed head; 224. Connecting shaft; 225. Driving shaft; 226. Stress blade. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-5, a fixed-torque assembly tool with a gas-breaking straight handle and button steering, includes a protective shell 1 and an assembly mechanism body 22. The inner wall of the protective shell 1 is sleeved with a plugging base block 11. The inner wall of the plugging base block 11 is sleeved with a connecting shaft 224. The outer wall of the connecting shaft 224 is fixedly connected with a transmission shaft seat 221. A plurality of thread grooves 222 are formed on the outer wall of the transmission shaft seat 221. The plurality of thread grooves 222 are distributed in a circumferential array on the outer wall of the transmission shaft seat 221. The transmission shaft seat 221 is fixedly connected with a fixing head 223 on the side far from the plugging base block 11. The connecting shaft 224 is fixedly connected with a driving shaft 225 on the side far from the transmission shaft seat 221. A plurality of stress leaves 226 are fixedly connected to the outer wall of the driving shaft 225. The plurality of stress leaves 226 are distributed in a circumferential array on the outer wall of the driving shaft 225. Among them, a plurality of thread grooves 222 are formed on the outer wall of the transmission shaft seat 221, so that when the worker operates the device to tighten the screw, the residue generated when the fixing head 223 contacts the screw can be adsorbed by the thread grooves 222. And the pressure relief spring 12 arranged outside the connecting shaft 224 can also effectively relieve the pressure on the plugging base block 11 when the device is working, thereby improving the protection of the fixing head 223 and the contacting screw when the device is working. A handle 2 is fixedly connected to the outer wall of the protective shell 1. A first connecting seat 6 is fixedly connected to the outer wall of the protective shell 1. A limiting shaft 7 is fixedly connected to the outer wall of the first connecting seat 6. A closed cover 3 is sleeved on the outer wall of the protective shell 1. A connecting notch 4 is fixedly connected to the outer wall of the closed cover 3. A second connecting seat 9 is fixedly connected to the outer wall of the closed cover 3. And a thread knob 10 is arranged on the side of the second connecting seat 9 far from the first connecting seat 6. The thread knob 10 is fixed to the limiting shaft 7 by threaded connection. A protective bushing 5 is arranged on the outer wall of the protective shell 1. Among them, when the device is working, external dust and impurities will directly fall into the device and collide with the limiting shaft 7, resulting in a decrease in the airtightness of the device during operation. And the setting of the protective bushing 5 can effectively avoid this situation. A pressurizing box 13 is arranged on the inner wall of the protective shell 1. A pressurizing pipe 20 is arranged on the inner wall of the pressurizing box 13. A plurality of pressurizing holes 21 are formed on the outer wall of the pressurizing pipe 20. The plurality of pressurizing holes 21 are distributed in a circumferential array on the outer wall of the pressurizing pipe 20. A pressurizing plate 14 is arranged on the outer wall of the pressurizing box 13. A pressure relief spring 12 is sleeved on the outer wall of the connecting shaft 224. A plurality of limiting columns 15 are fixedly connected to the outer wall of the pressurizing plate 14. A buffer spring 16 is sleeved on the outer wall of the plurality of limiting columns 15. A pressure regulating plate 18 is arranged on the outer wall of the limiting column 15. A pressure regulator 8 is fixedly connected to the outer wall of the pressure regulating plate 18. And the limiting column 15 and the pressure regulating plate 18 are slidably connected. Among them, the paired limiting columns 15 arranged on the outer wall of the pressurizing plate 14 can limit the lifting of the pressure regulating plate 18 when the device is ventilated. The buffer spring 16 outside the limiting column 15 can effectively relieve the pressure on the limiting column 15. And after the device completes the work, the L-shaped guide plate 17 no longer conducts air flow transmission, while ensuring the stability of the internal pressure of the device, it can also effectively avoid the situation that the device screw cannot be tightened.The pressure plate 14 is fixedly connected with an L-shaped guide plate 17 on the side far away from the pressure box 13, and the L-shaped guide plate 17 is slidably connected with the pressure regulating plate 18. Among them, due to the sliding connection between the L-shaped guide plate 17 and the pressure regulating plate 18, the wind introduced into the connecting notch 4 can be led out through the gap between the L-shaped guide plate 17 and the pressure regulating plate 18 when the pressure regulating plate 18 is pressed down. A plurality of air inlets 19 are formed in the outer wall of the pressure plate 14, and the plurality of air inlets 19 are symmetrically distributed on the outer wall of the pressure plate 14, and the air inlets 19 communicate with the pressure pipes 20. Among them, the formation of the air inlets 19 on the outer wall of the pressure plate 14 enables the air inlets 19 to compress and accelerate the wind during the operation of the device, thereby increasing the rotation speed of the force-bearing blades 226.

[0021] Working principle: When the device needs to be used, the worker connects the external air duct to the connecting notch 4, and then adjusts the pressure regulator 8 with fingers, so that the wind can flow through the L-shaped guide plate 17 into the pressure box 13. The wind flowing into the pressure box 13 can drive the force-bearing blades 226 to rotate through the pressure holes 21, so that the device can be driven by the force-bearing blades 226 to work.

[0022] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straight-handled, torque-fixed assembly tool with a cut-off torque cut-off direction, comprising a protective shell (1) and an assembly mechanism body (22), characterized in that: The inner wall of the protective shell (1) is sleeved with a blocking base block (11), the inner wall of the blocking base block (11) is sleeved with a connecting shaft (224), the outer wall of the connecting shaft (224) is fixedly connected with a transmission shaft seat (221), the outer wall of the transmission shaft seat (221) is provided with a plurality of thread grooves (222), the plurality of thread grooves (222) are distributed in a circular array on the outer wall of the transmission shaft seat (221), the transmission shaft seat (221) is fixedly connected with a fixing head (223) on a side away from the blocking base block (11), the connecting shaft (224) is fixedly connected with a driving shaft (225) on a side away from the driving shaft seat (221), the outer wall of the driving shaft (225) is fixedly connected with a plurality of force-bearing leaves (226), and the plurality of force-bearing leaves (226) are distributed in a circular array on the outer wall of the driving shaft (225).

2. The straight-handled torque-fixed assembly tool with a gas-off torque-setting function according to claim 1, characterized in that: The outer wall of the protective shell (1) is fixedly connected to a handle (2), the outer wall of the protective shell (1) is fixedly connected to a first connecting seat (6), the outer wall of the first connecting seat (6) is fixedly connected to a limiting shaft (7), the outer wall of the protective shell (1) is sleeved with a closing cover (3), the outer wall of the closing cover (3) is fixedly connected to a connecting notch (4), the outer wall of the closing cover (3) is fixedly connected to a second connecting seat (9), and the second connecting seat (9) is provided with a threaded button (10) on a side away from the first connecting seat (6), the threaded button (10) is fixed to the limiting shaft (7) by a threaded connection, and the outer wall of the protective shell (1) is provided with a protective bushing (5).

3. The straight-handled torque-fixed assembly tool with a gas-off function and a torque-direction setting function according to claim 1, characterized in that: The inner wall of the protective shell (1) is provided with a pressurizing box (13), the inner wall of the pressurizing box (13) is provided with a pressurizing tube (20), the outer wall of the pressurizing tube (20) is provided with a plurality of pressurizing holes (21), and the plurality of pressurizing holes (21) are distributed in a circular array on the outer wall of the pressurizing tube (20), the outer wall of the pressurizing box (13) is provided with a pressurizing plate (14), and the outer wall of the connecting shaft (224) is sleeved with a pressure relief spring (12).

4. The straight-handled, torque-fixed assembly tool with a gas-off torque-direction according to claim 3, characterized in that: The outer wall of the pressure plate (14) is fixedly connected to a plurality of limit columns (15), the outer walls of the plurality of limit columns (15) are sleeved with buffer springs (16), the outer walls of the limit columns (15) are provided with a pressure regulating plate (18), the outer wall of the pressure regulating plate (18) is fixedly connected to a pressure regulator (8), and the limit columns (15) and the pressure regulating plate (18) are slidably connected.

5. The straight-handled, torque-fixed assembly tool with a gas-off torque-direction according to claim 4, characterized in that: The pressure plate (14) is fixedly connected to an L-shaped guide plate (17) on a side away from the pressure box (13), and the L-shaped guide plate (17) is slidably connected to the pressure regulating plate (18).

6. The straight-handled, torque-fixed assembly tool with a shutoff function and a torque direction according to claim 3, characterized in that: The outer wall of the pressure plate (14) is provided with a plurality of air inlets (19), and the plurality of air inlets (19) are symmetrically distributed on the outer wall of the pressure plate (14), and the air inlets (19) are connected to the pressure pipe (20).

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