Nut tightening gun

Abstract

The utility model discloses a nut tightening gun which comprises a gun body, the gun body comprises a gun handle and a gun body, a fulcrum sleeve is fixedly arranged on the side, away from the gun handle, of the gun body in a sleeved mode, a motor is arranged in the gun body, the output end of the motor is fixedly connected with a driving block in a sleeved mode, a counter-acting force arm is fixedly connected to the outer portion of the driving block in a sleeved mode, and a driving sleeve is arranged on the counter-acting arm. The outer wall of the side, close to the gun body, of the driving sleeve is sleeved with a connecting sleeve, and the inner wall of the fulcrum sleeve is sleeved with the connecting sleeve at the same time. By means of the design, the tightening gun can drive the large thread sleeve to rotate at a high speed, and compared with a traditional manual rotating electric tool or an electric tool with a simple structure, the installation speed of the large thread sleeve is greatly increased, the installation time is shortened, and the working efficiency is improved. And the whole operation process is relatively simple, the driving sleeve only needs to be arranged on the large thread sleeve in a sleeving mode, the switch is turned on, operation is very convenient, and the problems that in a traditional mode, the large thread sleeve installation speed is low, and operation is inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut tightening gun technical field especially nut tightening gun. BACKGROUND

[0002] In the construction engineering construction process, the bolt is very common, and the installation needs to tighten the nut, if the traditional big screw sleeve installation mode, if using ordinary manual wrench, need manpower to rotate repeatedly to tighten the big screw sleeve, and it usually needs to spend a long time to tighten a big screw sleeve, and in the rotating process, manual operation is difficult to keep stable power output, leading to difficult to improve the installation speed, and it is more laborious and tedious to operate. SUMMARY

[0003] In order to solve the above problems, the utility model provides nut tightening gun to solve the problem.

[0004] In order to achieve the above purpose, the application provides the following technical scheme:

[0005] Nut tightening gun, including gun body, the gun body includes gun handle and gun body, the side of gun body away from the gun handle is fixedly provided with fulcrum sleeve, the gun body is equipped with motor, the output end of motor is fixedly provided with driving block, the outside of driving block is fixedly provided with reaction force arm, the upper portion of reaction arm is equipped with driving sleeve, the side outer wall of driving sleeve close to gun body is provided with connecting sleeve, and connecting sleeve is simultaneously provided in the inner wall of fulcrum sleeve.

[0006] Further setting is that: the driving sleeve is rotatably connected with the connecting sleeve, and the connecting sleeve is fixedly connected with the fulcrum sleeve.

[0007] Further setting is that: the middle position of reaction arm is provided with gun hole matched with driving block, and driving block and gun hole are both set as rectangle.

[0008] Further setting is that: the upper portion of reaction arm is provided with annular groove, and driving sleeve is fixedly provided in annular groove;And driving sleeve is located on the side away from gun body.

[0009] Further setting is that: the sleeve end of gun body and fulcrum sleeve is provided with clamping tooth, and gun body and fulcrum sleeve are clamped through clamping tooth.

[0010] Further setting is that: the reaction force arm is stainless steel reaction force arm.

[0011] Further arrangement: a plurality of bayonets are arranged on the reaction arm, and one end of the plurality of bayonets is inserted into the inner wall of the reaction arm and then into the inner wall of the driving sleeve and finally into the inner wall of the fulcrum sleeve.

[0012] Further arrangement: the plurality of bayonets are uniformly arranged on the circumferential surface of the reaction arm.

[0013] Further arrangement: a lithium battery is fixedly sleeved on the bottom of the gun body.

[0014] Further arrangement: a starting switch for controlling the motor is arranged on the side surface of the gun body.

[0015] Further arrangement: a heat dissipation mechanism is arranged in the gun body, and the heat dissipation mechanism comprises a high-speed motor, the high-speed motor is fixedly installed in the gun body, and a fan blade is fixedly sleeved on the output shaft of the high-speed motor.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] The nut tightening gun is provided with a reaction arm, a driving block, a driving sleeve and the like. When a large screw sleeve is installed, the driving sleeve matched with the specification of the screw sleeve is fixedly sleeved on the outside of the reaction arm, at this time, the driving sleeve is sleeved on the outside of the large screw sleeve and the starting switch is turned on, the motor drives the driving block to rotate, and then drives the reaction arm and the driving sleeve to rotate quickly, so that the driving sleeve can drive the large screw sleeve to be quickly tightened to the outside of the bolt. This design enables the tightening gun to drive the large screw sleeve to rotate at a faster speed, greatly improves the installation speed of the large screw sleeve, shortens the installation time and improves the work efficiency compared with the traditional manual rotation or the simple electric tool. Moreover, the whole operation process is relatively simple, only the driving sleeve needs to be sleeved on the large screw sleeve, and the switch is turned on, which is very convenient to operate, and solves the problems of slow installation speed and inconvenient operation of the traditional method. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is an explosion schematic view of the utility model;

[0021] Figure 3 It isFigure 1 Partial structural sectional view;

[0022] Figure 4 This is a schematic diagram of the reaction arm of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fulcrum sleeve of this utility model;

[0024] Figure 6 This is a schematic diagram of the heat dissipation mechanism in this utility model;

[0025] Reference numerals: 1. Gun body; 2. Lithium battery; 3. Start switch; 4. Drive block; 5. Gun body; 6. Reaction arm; 7. Locking pin; 8. Connecting sleeve; 9. Drive sleeve; 10. Pivot sleeve; 11. Gun handle; 12. Heat dissipation mechanism; 121. High-speed motor; 122. Fan blade. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example

[0030] Reference Figures 1-6The utility model discloses a nut tightening gun, including gun body 1, gun body 1 includes gun handle 11 and gun body 5, the side fixedly sleeved with fulcrum cover 10 of gun body 5 is away from gun handle 11, specific, the setting of the both sides of gun body 5 and the sleeve end of fulcrum cover 10 is provided with the clamping tooth, and the both are through the clamping tooth and are clamped, and the meshing of clamping tooth can provide greater friction and gripping force, ensure that fulcrum cover 10 and gun body 5 always keep stable connection, and it is not easy to loosen or fall off.

[0031] The motor is provided with the driving block 4 in the gun body 5, and the starting switch 3 for opening and closing the motor is arranged on the side of the gun handle 11, and the lithium battery 2 is arranged at the bottom of the gun handle 11.

[0032] The side, away from the gun body 1, of the driving block 4 is sleeved with the reaction arm;

[0033] In the embodiment, a gun hole adapted to the driving block 4 is formed in the middle of the reaction arm, and the driving block 4 and the gun hole are both rectangular.

[0034] An annular groove is formed in the reaction arm, and the driving sleeve 9 is fixedly sleeved in the annular groove; and the driving sleeve 9 is located on the side, away from the gun body 1.

[0035] The connecting sleeve 8 is sleeved on the outer wall of the driving sleeve 9 close to the gun body 1, and the connecting sleeve 8 is also sleeved on the inner wall of the fulcrum cover 10.

[0036] Further, the outer side of the fulcrum cover 10 is provided with a handle 12.

[0037] The circumferential surface of the reaction arm is uniformly inserted with a plurality of clamping pins 7, one end of the plurality of clamping pins 7 is inserted into the inner wall of the fulcrum cover 10 after penetrating the reaction arm and the inner wall of the driving sleeve 9.

[0038] The driving sleeve 9 is rotationally connected with the connecting sleeve 8, and the connecting sleeve 8 is fixedly connected with the fulcrum cover 10.

[0039] By arranging the reaction arm, when installing a large screw, the driving sleeve 9 adapted to the specification of the screw is fixedly sleeved on the outside of the reaction arm, at this time, the driving sleeve 9 is sleeved on the outside of the large screw and the starting switch 3 is turned on, so that the gun body 1 can drive the reaction arm to rotate quickly through the driving block 4, that is, the driving sleeve 9 is driven to rotate quickly, so that the driving sleeve 9 can drive the large screw to be quickly tightened to the outside of the bolt, thereby improving the installation speed of the large screw, and thus facilitating the installation and fixation of the nut.

[0040] The reaction arm is adapted to the driving block 4, and the material of the reaction arm is stainless steel material; the lithium battery 2 is inserted into the bottom of the gun handle 11, so that the lithium battery 2 can continuously supply power to the gun body 1, and the staff can carry and use the tightening gun at will, thereby improving the convenience of using the tightening gun.

[0041] The inside of the gun body 1 is provided with a heat dissipation mechanism 12, the heat dissipation mechanism 12 comprises a high-speed motor 121, the high-speed motor 121 is fixedly installed in the inside of the gun body 1, a fan blade 122 is fixedly sleeved on the output shaft of the high-speed motor 121, the gun body 1 is provided with a heat dissipation hole at the position close to the heat dissipation mechanism 12;When the tightening gun is working normally, the high-speed motor 121 can drive the fan blade 122 to rotate at high speed, so that the fan blade 122 can quickly exhaust the airflow in the inside of the gun body 1, thereby greatly improving the air exchange rate between the inside and the outside of the gun body 1, that is, improving the stability of the tightening gun during long-time load work.

[0042] When the drive sleeve 9 is replaced, the pin 7 is pulled out, so that the reaction arm can be detached from the drive block 4 and the outside, so that the drive sleeve 9 can be quickly separated from the drive block 4, thereby improving the convenience of disassembling the drive sleeve 9, thereby facilitating the replacement of the drive sleeve 9.

[0043] The working principle of the nut tightening gun provided by the utility model is as follows:

[0044] Firstly, the tightening gun comprises three parts, namely the gun body 1, the fulcrum sleeve 10 and the drive sleeve 9, wherein the gun body 1 serves as a power source for driving the nut to rotate, the fulcrum sleeve 10 provides a reverse action fulcrum for the tightening gun during rotation and tightening, and the drive sleeve 9 needs to be designed to match the size of the nut, so that the gun body 1 drives the drive block 4 to rotate to tighten and loosen the nut, thereby achieving the effect of assembling and disassembling the nut.

[0045] By arranging the reaction arm, when the large screw sleeve is installed, the drive sleeve 9 matched with the size of the screw sleeve is fixedly sleeved outside the reaction arm, at this time, the drive sleeve 9 is sleeved outside the large screw sleeve and the start switch 3 is turned on, so that the gun body 1 can drive the reaction arm to rotate quickly through the drive block 4, that is, the drive sleeve 9 is driven to rotate quickly, so that the drive sleeve 9 can drive the large screw sleeve to be quickly tightened to the outside of the bolt, thereby improving the installation speed of the large screw sleeve, thereby facilitating the installation and fixation of the nut.

[0046] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A nut-tightening gun, comprising a gun body (1), said gun body (1) comprising a handle (11) and a gun barrel (5), characterized in that, A fulcrum sleeve (10) is fixedly fitted on the side of the gun body (5) away from the gun handle (11). A motor is provided inside the gun body (1). A drive block (4) is fixedly fitted on the output end of the motor. A reaction arm (6) is fixedly fitted on the outside of the drive block (4). A drive sleeve (9) is provided on the upper part of the reaction arm. A connecting sleeve (8) is fitted on the outer wall of the drive sleeve (9) near the gun body (1). The connecting sleeve (8) is also fitted on the inner wall of the fulcrum sleeve (10).

2. The nut tightening gun according to claim 1, characterized in that, The driving sleeve (9) is rotatably connected to the connecting sleeve (8), and the connecting sleeve (8) is fixedly connected to the fulcrum sleeve (10).

3. The nut tightening gun according to claim 1, characterized in that, The reaction arm has a gun hole at the middle position that is compatible with the drive block (4), and both the drive block (4) and the gun hole are rectangular.

4. The nut tightening gun according to claim 1, characterized in that, The reaction arm has an annular groove, and a drive sleeve (9) is fixedly sleeved in the annular groove; and the drive sleeve (9) is located on the side away from the gun body (1).

5. The nut tightening gun according to claim 1, characterized in that, Both the gun body (5) and the fulcrum sleeve (10) are provided with locking teeth at their fitting ends, and the gun body (5) and the fulcrum sleeve (10) are locked together by the locking teeth.

6. The nut tightening gun according to claim 1, characterized in that, The reaction arm (6) is a stainless steel reaction arm (6).

7. The nut tightening gun according to claim 1, characterized in that, The reaction arm is provided with multiple locking pins (7). One end of each locking pin (7) passes through the reaction arm and then through the inner wall of the drive sleeve (9), and finally inserts into the inner wall of the fulcrum sleeve (10).

8. The nut tightening gun according to claim 7, characterized in that, The multiple pins (7) are evenly arranged about the circumferential surface of the reaction arm.

9. The nut tightening gun according to claim 1, characterized in that, A lithium battery (2) is fixedly sleeved at the bottom of the gun body (1); a start switch (3) for controlling the motor is provided on the side of the gun body (1).

10. The nut tightening gun according to claim 1, characterized in that, The gun body (1) is provided with a heat dissipation mechanism (12), which includes a high-speed motor (121). The high-speed motor (121) is fixedly installed inside the gun body (1), and a fan blade (122) is fixedly sleeved on the output shaft of the high-speed motor (121).

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