Charging electric wrench for building

Abstract

The utility model relates to the technical field of electric wrenches, and discloses a building charging electric wrench which comprises an electric wrench body, an extension mechanism is arranged on the electric wrench body, and a disassembly and assembly mechanism is arranged on the extension mechanism. The extension mechanism comprises a rotating sleeve arranged in the electric wrench body, a driving device used for driving the rotating sleeve is arranged in the electric wrench body, an inserting column is arranged on the inner wall of the rotating sleeve, a plurality of limiting grooves are formed in the two ends of the inserting column, an annular groove is formed in the outer wall of the rotating sleeve, and the limiting grooves are arranged in the annular groove. And through holes are formed in the two sides of the annular groove in a penetrating mode correspondingly, the two ends of the two through holes communicate with sliding grooves correspondingly, sliding blocks are slidably connected to the inner walls of the two sliding grooves correspondingly, first springs are fixedly connected between the four sliding blocks and the sliding grooves correspondingly, and limiting columns are fixedly connected between the two sliding blocks correspondingly.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric wrench technical field, concretely is a kind of building charging electric wrench. BACKGROUND

[0002] Building charging electric wrench is powered by rechargeable battery, and the function of screwing or loosening is realized by motor driving, which is widely used in building, steel structure installation, automobile maintenance and other fields, especially in the occasion of high-strength bolt connection and disassembly.

[0003] Chinese patent provides a kind of portable electric wrench, and the public number is CN221338343U, including shell and rotating terminal, driving device for driving rotating terminal rotation is equipped in shell, rotating terminal is located at the side of shell, the bottom of shell is equipped with hand-held part;First head slot is equipped outside rotating terminal, extension rod is equipped in first head slot, one end of extension rod is inserted into first head slot.

[0004] The above electric wrench can extend rotating terminal by using extension rod, so that the user can screw the bolt in deep position, and the magazine is formed by assembling the placing seat with cover, the magazine can store wrench head and extension rod, so as to avoid the problem of improper storage of wrench head after use, but the length cannot be changed during use, so the bolt in deep position cannot be disassembled and used. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of building charging electric wrench to solve the problem that the length of existing electric wrench cannot be changed during use, so the bolt in deep position cannot be disassembled and used.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of building charging electric wrench, including electric wrench body, the extension mechanism is arranged on the electric wrench body, the dismounting mechanism is arranged on the extension mechanism;

[0007] The extension mechanism includes rotating sleeve arranged in the electric wrench body, the driving device for driving rotating sleeve is arranged in the electric wrench body, the insert column is arranged on the inner wall of rotating sleeve, the multiple limiting grooves are arranged at both ends of the insert column, the annular groove is arranged on the outer wall of rotating sleeve, the through hole is arranged at both sides of annular groove, the sliding slot is communicated at both ends of two through holes, the sliding block is slidably connected in the inner wall of two groups of sliding slots, the first spring is fixedly connected between four groups of sliding blocks and sliding slots, the limiting column is fixedly connected between two groups of sliding blocks, the multiple circular grooves are arranged at one end of annular groove, the second spring is fixedly connected at one end of multiple circular grooves, and the fixing ring is fixedly connected at the other end of multiple second springs.

[0008] Preferably, the dismounting mechanism comprises a mounting groove formed at one end of the insertion column, and clamping grooves are in communication with both ends of the mounting groove.

[0009] Preferably, an installation column is arranged on the inner wall of the mounting groove, and a chuck is fixedly connected to one end of the installation column.

[0010] Preferably, a cavity is formed in the installation column, and elastic plates are arranged on both sides of the inner wall of the cavity, and a plurality of third springs are fixedly connected between the two elastic plates.

[0011] Preferably, buttons are fixedly connected to one end of the two elastic plates away from each other and penetrate the installation column, and clamping columns are fixedly connected to the side of the buttons away from each other and penetrate the installation column.

[0012] Preferably, a handle is fixedly connected to the bottom end of the body of the electric wrench, and a rechargeable battery shell is fixedly connected to the bottom end of the handle.

[0013] Compared with the prior art, the electric wrench has the following beneficial effects:

[0014] 1) The building electric charging wrench can change the length of the insertion column through the cooperation of various structures in the extension mechanism, so that the required length can be adjusted according to the use scene, and the limiting column is limited by the fixing ring to prevent movement of the limiting column during rotation and affect the stability.

[0015] 2) The building electric charging wrench can quickly dismount the chuck through the cooperation of various structures in the dismounting mechanism, improve the dismounting efficiency, and replace the chuck of different sizes to improve the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the building electric charging wrench of the utility model;

[0017] Figure 2 It is another perspective view of the building electric charging wrench of the utility model;

[0018] Figure 3 It is a cross-sectional view of the rotating sleeve of the building electric charging wrench of the utility model;

[0019] Figure 4 It is a perspective view of the building electric charging wrench of the utility model; Figure 3 It is an enlarged view of A in the middle;

[0020] Figure 5 It is another perspective view of the cross section of the rotating sleeve of the building electric charging wrench of the utility model;

[0021] Figure 6The utility model discloses a building charging electric wrench's plug post sectional view,

[0022] Figure 7 The utility model discloses a building charging electric wrench's plug post and installation post separation drawing.

[0023] In the drawing: 1, electric wrench body; 2, extension mechanism; 202, rotating sleeve; 203, plug post; 204, limiting groove; 205, annular groove; 206, sliding slot; 207, sliding block; 208, first spring; 209, limiting column; 210, circular groove; 211, second spring; 212, fixed ring; 3, dismounting mechanism; 301, mounting groove; 302, clamping groove; 303, mounting column; 304, bit; 305, cavity; 306, telescopic plate; 307, third spring; 308, button; 309, clamping column. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0025] Embodiment one

[0026] Combined Figures 1-7 A building charging electric wrench, including electric wrench body 1, be provided with extension mechanism 2 on electric wrench body 1, be provided with dismounting mechanism 3 on extension mechanism 2, electric wrench body 1 bottom fixedly connected with handle, handle bottom fixedly connected with rechargeable battery shell, be provided with rechargeable battery in rechargeable battery shell, provide electric power for electric wrench.

[0027] Referring to Figures 2-5 Further, the extension mechanism 2 includes a rotating sleeve 202 arranged inside the electric wrench body 1, the electric wrench body 1 is provided with a driving device for driving the rotating sleeve 202, the inner wall of the rotating sleeve 202 is provided with a plug post 203, a plurality of limiting grooves 204 are formed at both ends of the plug post 203, an annular groove 205 is formed on the outer wall of the rotating sleeve 202, through holes are formed on both sides of the annular groove 205, the sliding slots 206 are communicated at both ends of the two through holes, the sliding blocks 207 are slidably connected to the inner walls of the two groups of sliding slots 206, the first springs 208 are fixedly connected between the four groups of sliding blocks 207 and the sliding slots 206, the limiting columns 209 are fixedly connected between the two groups of sliding blocks 207, a plurality of circular grooves 210 are formed at one end of the annular groove 205, the second springs 211 are fixedly connected to one end of the plurality of circular grooves 210, and the fixed rings 212 are fixedly connected to the other ends of the plurality of second springs 211.

[0028] Specifically, the bolt can be screwed off by driving the rotating sleeve 202, the insertion column 203 is inserted into the inner wall of the rotating sleeve 202, the tail of the insertion column 203 is square-shaped, so that the insertion column 203 can rotate with the rotating sleeve 202, the length can be adjusted according to the needs through the cooperation of the limiting groove 204 and the limiting column 209, the application in different depth scenes is facilitated, the limiting column 209 is limited through the through hole, the sliding block 207 is limited through the sliding groove 206, the limiting column 209 is inserted into the limiting groove 204 through the elastic action of the first spring 208, the limiting of the insertion column 203 is completed, and the recess on the limiting column 209 can pull the limiting column 209 to move, the second spring 211 can be accommodated through the circular groove 210, and the elastic action of the second spring 211 can reset the fixing ring 212, so that the limiting column 209 can be limited by the fixing ring 212, and the movement of the limiting column 209 in the use process is prevented.

[0029] Embodiment two

[0030] Reference Figure 6 and Figure 7 , and on the basis of embodiment one, it is further obtained that the dismounting mechanism 3 comprises a mounting groove 301 opened at one end of the insertion column 203, the mounting groove 301 is communicated with a clamping groove 302 at both ends, the mounting groove 301 is provided with a mounting column 303 on the inner wall, one end of the mounting column 303 is fixedly connected with a bit head 304, a cavity 305 is opened in the mounting column 303, the inner wall of the cavity 305 is provided with an expansion plate 306 on both sides, a plurality of third springs 307 are fixedly connected between the two expansion plates 306, the ends of the two expansion plates 306 away from each other are fixedly connected with a button 308 and penetrate through the mounting column 303, and the ends of the two expansion plates 306 away from each other are fixedly connected with a clamping column 309 on the side corresponding to the button 308 and penetrate through the mounting column 303.

[0031] Specifically, the mounting operation is performed through the cooperation of the mounting groove 301 and the mounting column 303, the mounting column 303 can be limited through the cooperation of the clamping groove 302 and the clamping column 309, the stability of the installation is ensured, the elastic action of the third spring 307 arranged can reset the expansion plate 306, the clamping column 309 can be away from the clamping groove 302 through the button 308, the limiting of the mounting column 303 is released, the mounting column 303 can be replaced, different sizes of bit heads 304 can be replaced, and the practicability is improved.

[0032] In actual operation, first, the fixed ring 212 is moved to one side and the second spring 211 is accommodated into the circular groove 210, and the limiting of the limiting column 209 is contacted, then the limiting column 209 is pulled out of the corresponding limiting groove 204 through the groove on the limiting column 209, and the length of the inserting column 203 is stretched, then the limiting column 209 is loosened and can be moved with the sliding block 207 under the elastic action of the first spring 208, and the limiting column 209 is inserted into the corresponding limiting groove 204, so that the limiting of the inserting column 203 is completed, then the fixed ring 212 is loosened and covers the outside of the limiting column 209 under the elastic action of the second spring 211, and the limiting column 209 is limited, so that the movement of the limiting column 209 is prevented during rotation, the stability is affected, and the required length can be adjusted according to the use scene;

[0033] And the telescopic plate 306 can be moved towards by pressing the button 308, and the clamping column 309 is moved to be out of the range of the clamping groove 302, then the mounting column 303 is pulled out and the different size of the chuck 304 is replaced, then the mounting column 303 is inserted into the mounting groove 301, at this time, the button 308 is loosened and the telescopic plate 306 is reset and moved under the elastic action of the third spring 307, and the clamping column 309 is inserted into the clamping groove 302, the replacement operation is completed, so that the chuck 304 is conveniently replaced, so that the disassembly and assembly efficiency is improved.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A building charging electric wrench, comprising an electric wrench body (1), characterized in that: The electric wrench body (1) is provided with an extension mechanism (2), and the extension mechanism (2) is provided with a dismounting mechanism (3). The extension mechanism (2) comprises a rotating sleeve (202) arranged in the electric wrench body (1), and the electric wrench body (1) is provided with a driving device for driving the rotating sleeve (202); the inner wall of the rotating sleeve (202) is provided with a plug column (203), the two ends of the plug column (203) are provided with a plurality of limiting grooves (204), the outer wall of the rotating sleeve (202) is provided with an annular groove (205), the two sides of the annular groove (205) are provided with through holes, the two ends of the two through holes are communicated with a sliding groove (206), the inner walls of the two groups of sliding grooves (206) are slidably connected with a sliding block (207), the first spring (208) is fixedly connected between the four groups of sliding blocks (207) and the sliding grooves (206), the limiting column (209) is fixedly connected between the two groups of sliding blocks (207), a plurality of circular grooves (210) are formed at one end of the annular groove (205), the second spring (211) is fixedly connected at one end of the plurality of circular grooves (210), and the fixed ring (212) is fixedly connected at the other end of the plurality of second springs (211).

2. The building charging electric wrench according to claim 1, characterized in that: The dismounting mechanism (3) comprises a mounting groove (301) formed at one end of the plug column (203), and the two ends of the mounting groove (301) are communicated with a clamping groove (302).

3. The building charging electric wrench according to claim 2, characterized in that: The mounting groove (301) is provided with a mounting column (303), and the mounting column (303) is fixedly connected with a bit (304) at one end.

4. The building charging electric wrench according to claim 3, characterized in that: The mounting column (303) is internally provided with a cavity (305), and the inner walls of the cavity (305) are provided with telescopic plates (306) on both sides; a plurality of third springs (307) are fixedly connected between the two telescopic plates (306).

5. A building charging electric wrench according to claim 4, characterized in that: The two telescopic plates (306) are fixedly connected with a button (308) at the ends away from each other and penetrate the mounting column (303); the two telescopic plates (306) are fixedly connected with a clamping column (309) on the side corresponding to the button (308) at the ends away from each other and penetrate the mounting column (303).

6. The building charging electric wrench according to claim 1, characterized in that: The electric wrench body (1) is fixedly connected with a handle at the bottom end, and the handle is fixedly connected with a rechargeable battery shell at the bottom end.

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