Electric grinding screwdriver

Abstract

The utility model discloses an electric grinding screwdriver which comprises an electric screwdriver transmission mechanism, an electric grinding machine transmission mechanism, a control circuit, a battery and an installation shell. The control circuit comprises a control key and a circuit board, and the circuit board is electrically connected with the electric screwdriver transmission mechanism and the electric grinding machine transmission mechanism. The battery is electrically connected with the control circuit; the mounting shell is used for mounting the electric screwdriver transmission mechanism, the electric grinding machine transmission mechanism, the control circuit and the battery. The control key is manually triggered to trigger the circuit board, the electric screwdriver transmission mechanism and the electric polisher transmission mechanism are controlled through the circuit board, the functions of the electric screwdriver and the functions of the electric polisher are achieved, the electric polishing screwdriver integrates the functions of the electric screwdriver and the functions of the electric polisher, and the functions are more comprehensive; the problem that an existing electric screwdriver is single in function is solved. And moreover, compared with an electric screwdriver and an electric grinding machine which are relatively independent, the occupied space is smaller, and use of a user is more facilitated.

Description

Technical Field

[0001] The utility model relates to the field of maintenance equipment, in particular to an electric grinding screwdriver. Background Art

[0002] Nowadays, in the field of mobile terminal maintenance such as mobile phones, in order to improve work efficiency and reduce the physical labor of maintenance personnel, many people use electric screwdrivers to tighten screws. There are also electric equipment such as electric grinders. Electric screwdrivers and electric grinders exist independently, and the functions of each are relatively simple. In addition, using electric screwdrivers and electric grinders at the same time takes up more space, squeezing out the originally small maintenance space. Utility Model Content

[0003] The main purpose of the utility model is to provide an electric grinding screwdriver, which is used to solve the problem that the existing electric screwdrivers have a single function.

[0004] The utility model provides an electric grinding screwdriver, comprising:

[0005] Electric screwdriver transmission mechanism;

[0006] Electric grinder transmission mechanism;

[0007] A control circuit, including a control key and a circuit board, wherein the circuit board is electrically connected to the electric screwdriver transmission mechanism and the electric grinder transmission mechanism respectively;

[0008] a battery, electrically connected to the control circuit;

[0009] The installation housing is used to install the electric screwdriver transmission mechanism, the electric grinder transmission mechanism, the control circuit and the battery.

[0010] Furthermore, the electric screwdriver transmission mechanism, the circuit board of the control circuit, the battery and the electric grinder transmission mechanism are arranged in sequence along a straight line.

[0011] Furthermore, the electric grinding screwdriver also includes a fill light, which is arranged at the end where the transmission mechanism of the electric screwdriver is located, and the fill light is electrically connected to the circuit board.

[0012] Furthermore, the electric grinder transmission mechanism comprises:

[0013] The grinding drives the motor, which is electrically connected to the circuit board;

[0014] The inserting seat is drivingly connected to the output end of the grinding drive motor, and an inserting slot is provided on the inserting seat;

[0015] A fixed spring is arranged at the opening of the insertion slot, one end of which is fixedly connected to the insertion seat, and the radius of the fixed spring is tightened when the insertion seat rotates in the forward direction;

[0016] The guide seat is fixedly connected with the insertion seat, a through hole is provided on the guide seat, the guide seat and the insertion seat enclose a spring installation cavity, the fixed spring is arranged in the spring installation cavity, and the through hole is communicated with the spring installation cavity;

[0017] The latch structure is arranged beside the guide seat or the insertion seat. The guide seat or the insertion seat is provided with a fixing hole. The partially removable insertion fixing hole in the latch structure is used to limit the rotation of the guide seat and the insertion seat.

[0018] Furthermore, the latch structure includes a needle guide tube and a limiting pin movably inserted into the needle guide tube; the limiting pin is removably inserted into the fixing hole.

[0019] Furthermore, the latch structure also includes a rebound mechanism and an insertion button, the insertion button is transmission-connected to the limit pin, and the rebound mechanism is transmission-connected to the limit pin.

[0020] Furthermore, the control keys include a first control key, a second control key and a third control key; when in the electric screwdriver working mode, the first control key and the second control key respectively control the advance and retreat of the screwdriver, and the third control key controls the rotation speed; when in the electric grinder working mode, the first control key and the second control key respectively control the rotation speed of the electric grinder, and the third control key controls the opening and closing of the transmission mechanism of the electric grinder.

[0021] Furthermore, the installation shell includes an installation inner shell and an installation outer shell, the installation outer shell is arranged on the outside of the installation inner shell, the installation inner shell is divided into an installation upper shell and an installation lower shell that are relatively arranged, the installation upper shell and the installation lower shell enclose an installation cavity, and the electric screwdriver transmission mechanism, the circuit board of the control circuit, the battery and the electric grinder transmission mechanism are arranged in the installation cavity.

[0022] Furthermore, the electric grinding screwdriver also includes a charging interface, which is electrically connected to the circuit board.

[0023] Furthermore, the electric grinding screwdriver also includes an indicator light, which is arranged on the mounting shell and is electrically connected to the circuit board.

[0024] The utility model provides an electric grinding screwdriver, which triggers a circuit board by manually triggering a control key, and controls an electric screwdriver transmission mechanism and an electric grinder transmission mechanism through the circuit board to respectively realize the electric screwdriver function and the electric grinder function. The electric grinding screwdriver integrates the electric screwdriver function and the electric grinder function, has more comprehensive functions, and solves the problem of single function of the existing electric screwdriver; moreover, compared with two relatively independent electric screwdrivers and electric grinders, it occupies less space and is more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment of an electric grinding screwdriver of the utility model;

[0026] Figure 2 It is a structural schematic diagram of an electric grinding screwdriver in an embodiment of the utility model after the mounting shell is removed;

[0027] Figure 3 This is a schematic diagram of the internal structure of an electric grinding screwdriver in one embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of an electric grinder transmission mechanism in an embodiment of an electric grinder screwdriver of the utility model after removing the guide seat;

[0029] Figure 5 The utility model is a structural schematic diagram of a guide seat in an embodiment of an electric grinding screwdriver.

[0030] Figure 1-5 In the figure, there are an electric screwdriver transmission mechanism 1, a fill light 11, an electric grinder transmission mechanism 2, a grinding drive motor 21, an insertion seat 22, an insertion slot 221, a guide seat 23, a through hole 231, a fixing spring 24, a latch structure 25, a guide needle tube 251, a fixing hole 26, a bearing 27, a control circuit 3, a control key 31, a first control key 311, a second control key 312, a third control key 313, a circuit board 32, a battery 4, an installation shell 5, an installation inner shell 51, and an installation outer shell 52. DETAILED DESCRIPTION

[0031] The technical solution of this article will be further described in detail below in conjunction with the accompanying drawings.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0033] Reference Figure 1-5 The utility model proposes an electric grinding screwdriver, including an electric screwdriver transmission mechanism 1, an electric grinder transmission mechanism 2, a control circuit 3, a battery 4 and an installation shell 5; the control circuit 3 includes a control key 31 and a circuit board 32, and the circuit board 32 is electrically connected to the electric screwdriver transmission mechanism 1 and the electric grinder transmission mechanism 2 respectively; the battery 4 is electrically connected to the control circuit 3; the installation shell 5 is used to install the electric screwdriver transmission mechanism 1, the electric grinder transmission mechanism 2, the control circuit 3 and the battery 4.

[0034] Specifically, the circuit board 32 is a circuit board 32 capable of controlling the operation of the electric screwdriver transmission mechanism 1 and the electric grinder transmission mechanism 2, which will not be described in detail here; the control key 31 is manually triggered to trigger the circuit board 32, and the electric screwdriver transmission mechanism 1 and the electric grinder transmission mechanism 2 are respectively controlled by the circuit board 32 to realize the electric screwdriver function and the electric grinder function respectively. The electric grinding screwdriver integrates the electric screwdriver function and the electric grinder function, and has more comprehensive functions, which solves the problem of single function of the existing electric screwdriver; moreover, compared with two relatively independent electric screwdrivers and electric grinders, it occupies less space and is more conducive to user use.

[0035] It should be noted that, in some embodiments, the control key 31 is a physical key; in some embodiments, the control key 31 is a virtual key on the touch screen for realizing the control function; the electric screwdriver transmission mechanism 1 is a transmission mechanism that can drive the screwdriver head to rotate, move forward, move backward and other functions, realizing the electric screwdriver function; the electric grinder transmission mechanism 2 is a mechanism that can fix the grinding head and drive the grinding head to rotate.

[0036] Furthermore, in some embodiments, the electric screwdriver transmission mechanism 1 , the circuit board 32 of the control circuit 3 , the battery 4 , and the electric grinder transmission mechanism 2 are sequentially arranged along a straight line.

[0037] Specifically, the electric screwdriver transmission mechanism 1, the circuit board 32 of the control circuit 3, the battery 4 and the electric grinder transmission mechanism 2 are arranged in sequence along a straight line, so that the electric grinding screwdriver can be long and convenient for users to hold and work.

[0038] Furthermore, in some embodiments, the electric grinding screwdriver further includes a fill light 11 , which is disposed at the end where the electric screwdriver transmission mechanism 1 is located, and the fill light 11 is electrically connected to the circuit board 32 .

[0039] Specifically, the fill light 11 can illuminate the screws, making it convenient for users to remove or install the screws; the fill light 11 is powered by the battery 4 , and in some embodiments, there is a switch specifically for controlling the fill light 11 .

[0040] Furthermore, in some embodiments, the electric grinder transmission mechanism 2 includes a grinding drive motor 21, an insertion seat 22, a fixing spring 24, a guide seat 23 and a latch structure 25; the grinding drive motor 21 is electrically connected to the circuit board 32; the insertion seat 22 is transmission-connected to the output end of the grinding drive motor 21, and an insertion slot 221 is provided on the insertion seat 22; the fixing spring 24 is provided at the opening of the insertion slot 221, one end of which is fixedly connected to the insertion seat 22, and the fixing spring 24 is fixedly connected to the insertion seat 22 when the insertion seat 22 rotates forward. The radius is tightened; the guide seat 23 is fixedly connected to the insertion seat 22, and a through hole 231 is provided on the guide seat 23. The guide seat 23 and the insertion seat 22 enclose a spring installation cavity, and a fixed spring 24 is arranged in the spring installation cavity, and the through hole 231 is connected to the spring installation cavity; the latch structure 25 is arranged on the side of the guide seat 23 or the insertion seat 22, and the guide seat 23 or the insertion seat 22 is provided with a fixing hole 26, and the partially removable insertion fixing hole 26 in the latch structure 25 is used to limit the rotation of the guide seat 23 and the insertion seat 22.

[0041] Specifically, in some embodiments, the guide seat 23 and the insertion seat 22 are fixedly connected, and the radius of the spring installation cavity is larger than the outer diameter of the fixed spring 24. When the grinding head needs to be fixed, the tail end of the grinding head passes through the through hole 231 of the guide seat 23 and presses against the fixed spring 24. The guide seat 23 and the insertion seat 22 are temporarily limited to rotate by the latch structure 25. The radius of the fixed spring 24 is enlarged by rotating the grinding head in the opposite direction so that the tail end of the grinding head can be inserted into the fixed spring 24 and inserted into the insertion groove 221. In some embodiments, the fixed spring 24 can be fixed by pressing the grinding head. The radius becomes larger so that the tail end of the grinding head can be inserted into the fixed spring 24 and inserted into the insertion groove 221; when the insertion seat 22 rotates forward, it drives the guide seat 23 and the grinding head to rotate to achieve the grinding effect; in some embodiments, the insertion groove 221 and the through hole 231 are circular, and when the insertion seat 22 rotates forward, it drives the end of the fixed spring 24 so that the fixed spring 24 can bind and fix the grinding head to prevent the grinding head from detaching, and the fixed spring 24 drives the grinding head to rotate, and the fixed spring 24 fixes the grinding head and has a certain buffering effect when the end of the grinding head encounters too much resistance.

[0042] In some embodiments, the through hole 231 is circular to facilitate the installation of the grinding head in the fixed spring 24. The insertion slot 221 is adapted to the shape of the tail end of the grinding head. When the insertion seat 22 rotates forward, the insertion seat 22 drives the grinding head. When the grinding head detaches from the insertion slot 221 for some reason, the insertion slot 221 drives the end of the fixed spring 24 so that the fixed spring 24 can bind and fix the grinding head to prevent the grinding head from detaching, and the fixed spring 24 drives the grinding head to rotate.

[0043] It should be said that after the tail end of the grinding head can be inserted into the fixing spring 24 and into the insertion groove 221, the part of the pin structure 25 inserted into the fixing hole 26 is withdrawn so that the insertion seat 22 and the guide seat 23 can rotate; in some embodiments, the insertion seat 22 and the guide seat 23 are interference fit, and the insertion seat 22 and the guide seat 23 rotate synchronously.

[0044] It should be noted that, in some embodiments, in order to allow the insertion seat 22 and the guide seat 23 to rotate smoothly, a bearing 27 is sleeved on the outer side of the guide seat 23 .

[0045] Furthermore, in some embodiments, the latch structure 25 includes a needle guide tube 251 and a limiting pin movably inserted into the needle guide tube 251 ; the limiting pin is removably inserted into the fixing hole 26 .

[0046] Specifically, the limiting pin is inserted into the fixing hole 26 to limit the rotation of the insertion seat 22 and the guide seat 23 , so that the rear end of the grinding head can be inserted into the fixing spring 24 .

[0047] In some embodiments, the limit pin is independent, and the user inserts the guide needle tube 251 during use and pulls it out after use; in some embodiments, the limit pin is set on the mounting shell 5, and the limit pin is inserted and pulled out of the fixing hole 26 by manual control.

[0048] Furthermore, in some embodiments, the latch structure 25 further includes a rebound mechanism and an insertion button, the insertion button is transmission-connected to the limit pin, and the rebound mechanism is transmission-connected to the limit pin.

[0049] Specifically, the limit pin is initially in a state of being pulled out of the fixing hole 26. In some embodiments, the rebound mechanism is a spring. When the limit pin needs to be inserted into the fixing hole 26, the insertion button is pressed against the limit pin, and the limit pin squeezes the spring to insert the limit pin into the fixing hole 26. When the limit pin needs to be pulled out of the fixing hole 26, the force applied to the insertion button is canceled, and the limit pin is pulled out of the fixing hole 26 under the action of the spring restoring force. In some embodiments, the rebound mechanism is capable of limiting the position of the limit pin, so that the insertion and withdrawal of the limit pin into and out of the fixing hole 26 can be manually controlled by the insertion button.

[0050] Further, in some embodiments, the control key 31 includes a first control key 311, a second control key 312 and a third control key 313; when in the electric screwdriver working mode, the first control key 311 and the second control key 312 respectively control the advance and retreat of the screwdriver, and the third control key 313 controls the rotation speed; when in the electric grinder working mode, the first control key 311 and the second control key 312 respectively control the rotation speed of the electric grinder, and the third control key 313 controls the opening and closing of the electric grinder transmission mechanism 2.

[0051] Specifically, in some embodiments, the electric screwdriver working mode and the electric grinder working mode are switched through a special mode adjustment button; in some embodiments, according to the settings, the electric screwdriver working mode and the electric grinder working mode are adjusted and switched through one or more of the first control key 311, the second control key 312 and the third control key 313; when in the electric screwdriver working mode, the first control key 311 and the second control key 312 respectively control the advance and retreat of the screwdriver, and the third control key 313 controls the rotation speed; when in the electric grinder working mode, the first control key 311 and the second control key 312 respectively control the rotation speed of the electric grinder, and the third control key 313 controls the opening and closing of the electric grinder transmission mechanism 2.

[0052] Furthermore, in some embodiments, the mounting shell 5 includes an mounting inner shell 51 and an mounting outer shell 52, the mounting outer shell 52 is sleeved on the outside of the mounting inner shell 51, the mounting inner shell 51 is divided into an mounting upper shell and a mounting lower shell that are relatively arranged, the mounting upper shell and the mounting lower shell enclose an mounting cavity, and the electric screwdriver transmission mechanism 1, the circuit board 32 of the control circuit 3, the battery 4 and the electric grinder transmission mechanism 2 are arranged in the mounting cavity.

[0053] Specifically, in some embodiments, by means of the detachable design of the installation upper shell and the installation lower shell, the electric screwdriver transmission mechanism 1, the electric grinder transmission mechanism 2, the control circuit 3 and the battery 4 can be more conveniently installed in the installation cavity, and then the installation upper shell and the installation lower shell are fixedly installed by installing the outer shell 52 on the outside of the installation inner shell 51 to realize the assembly of the installation shell 5.

[0054] Furthermore, in some embodiments, the electric grinding screwdriver also includes a charging interface, and the charging interface is electrically connected to the circuit board 32 .

[0055] Specifically, the battery 4 is powered by a charging interface, which may be Type-B, Type-C, Lightning, etc. In some embodiments, the charging interface is located on the side wall of the mounting shell 5, close to the circuit board 32, to facilitate installation and avoid losses caused by excessively long lines.

[0056] Furthermore, in some embodiments, the electric grinding screwdriver further includes an indicator light, which is disposed on the mounting housing 5 and is electrically connected to the circuit board 32 .

[0057] Specifically, in some embodiments, the indicator light can be used to quickly distinguish whether the electric grinding screwdriver is in the electric screwdriver working mode, the electric grinder working mode, or not turned on; in some embodiments, there are multiple indicator lights, and the multiple indicator lights represent the electric screwdriver working mode, the electric grinder working mode, and not turned on respectively; in some embodiments, the indicator light is a color-changing indicator light, and different colors represent the electric screwdriver working mode, the electric grinder working mode, and not turned on.

[0058] The utility model provides an electric grinding screwdriver, which triggers a circuit board 32 by manually triggering a control key 31, and controls an electric screwdriver transmission mechanism 1 and an electric grinder transmission mechanism 2 respectively through the circuit board 32, so as to realize the electric screwdriver function and the electric grinder function respectively. The electric grinding screwdriver integrates the electric screwdriver function and the electric grinder function, has more comprehensive functions, and solves the problem of single function of the existing electric screwdriver; moreover, compared with two relatively independent electric screwdrivers and electric grinders, it occupies less space and is more convenient for users to use.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric grinding screwdriver, characterized in that: include: Electric screwdriver transmission mechanism; Electric grinder transmission mechanism; A control circuit, comprising a control key and a circuit board, wherein the circuit board is electrically connected to the electric screwdriver transmission mechanism and the electric grinder transmission mechanism respectively; a battery, electrically connected to the control circuit; The mounting housing is used for mounting the electric screwdriver transmission mechanism, the electric grinder transmission mechanism, the control circuit and the battery.

2. The electric grinding screwdriver according to claim 1, characterized in that: The electric screwdriver transmission mechanism, the circuit board of the control circuit, the battery and the electric grinder transmission mechanism are arranged in sequence along a straight line.

3. The electric grinding screwdriver according to claim 1, characterized in that: It also includes a fill light, which is arranged at the end where the electric screwdriver transmission mechanism is located, and the fill light is electrically connected to the circuit board.

4. The electric grinding screwdriver according to claim 1, characterized in that: The electric grinder transmission mechanism comprises: A grinding drive motor is electrically connected to the circuit board; An insertion seat is drivingly connected to the output end of the grinding drive motor, and an insertion slot is provided on the insertion seat; A fixing spring is arranged at the opening of the insertion slot, one end of which is fixedly connected to the insertion seat, and the radius of the fixing spring is tightened when the insertion seat rotates in the forward direction; A guide seat, fixedly connected to the insertion seat, the guide seat is provided with a through hole, the guide seat and the insertion seat enclose a spring installation cavity, the fixed spring is arranged in the spring installation cavity, and the through hole is communicated with the spring installation cavity; The latch structure is arranged beside the guide seat or the insertion seat. The guide seat or the insertion seat is provided with a fixing hole. A removable portion of the latch structure is inserted into the fixing hole to limit the rotation of the guide seat and the insertion seat.

5. The electric grinding screwdriver according to claim 4, characterized in that: The latch structure includes a needle guide tube and a limiting pin movably inserted into the needle guide tube; the limiting pin is removably inserted into the fixing hole.

6. The electric grinding screwdriver according to claim 5, characterized in that: The latch structure also includes a rebound mechanism and an insertion button, wherein the insertion button is transmission-connected to the limit pin, and the rebound mechanism is transmission-connected to the limit pin.

7. The electric grinding screwdriver according to claim 5, characterized in that: The control keys include a first control key, a second control key and a third control key; when in the electric screwdriver working mode, the first control key and the second control key respectively control the advance and retreat of the screwdriver, and the third control key controls the rotation speed; when in the electric grinder working mode, the first control key and the second control key respectively control the rotation speed of the electric grinder, and the third control key controls the opening and closing of the electric grinder transmission mechanism.

8. The electric grinding screwdriver according to claim 1, characterized in that: The mounting shell includes an mounting inner shell and an mounting outer shell, the mounting outer shell is sleeved on the outside of the mounting inner shell, the mounting inner shell is divided into an mounting upper shell and a mounting lower shell which are relatively arranged, the mounting upper shell and the mounting lower shell enclose an mounting cavity, and the electric screwdriver transmission mechanism, the circuit board of the control circuit, the battery and the electric grinder transmission mechanism are arranged in the mounting cavity.

9. The electric grinding screwdriver according to claim 1, characterized in that: The electric grinding screwdriver also includes a charging interface, and the charging interface is electrically connected to the circuit board.

10. The electric grinding screwdriver according to claim 1, characterized in that: The electric grinding screwdriver also includes an indicator light, which is arranged on the mounting shell and is electrically connected to the circuit board.

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