TWI689385B - Electro-locking structure - Google Patents

Abstract

An electro-locking structure comprising a ground wire, a main body and a first structure is provided. The ground wire is configured for grounding. The main body comprises a body and a screwdriver bit; the body connects with the ground wire; the screwdriver bit connects with the body; and the screwdriver bit is rotatable relative to the body. The first structure is made of a conductive material and is configured to connect with the body; and a side wall of the screwdriver bit connects with the first structure and is rotatable relative to the first structure. A position of the screwdriver bit where the screwdriver bit contacts the first structure is different from a position of the screwdriver bit where the screwdriver bit connects with the body. When the screwdriver bit is rotated relative to the body, the static electricity generated by the screwdriver bit is transmitted to the ground wire via the body, and the static electricity generated by the screwdriver bit is sequentially transmitted to the ground wire via the first structure and the body such that an advantage of a better anti-static effect, a simple structure and convenience can be achieved.

Description

Electric lock structure

The invention relates to an electric lock structure, in particular to an electric lock structure which can make the static electricity generated by the rotation of the bit head have a good discharge effect.

The electric lock structure is a high-speed rotating electric tool that can be used to tighten or loosen screws and drill holes. The normal operation of the electric lock structure is inseparable from the power supply, so the internal components of the electric lock structure are grounded to prevent the danger of leakage, and it meets the standards during static ESD testing.

However, during the operation of the electric lock structure, the head of the electric lock structure will generate static electricity. At this time, if it cannot be discharged immediately, it may damage the electronic components and their circuits, and the electric lock structure may also be damaged and interrupt the grounding. The method is to ground the internal components connected to the batch head, but the effect of static electricity export in this way is not ideal, because there is a gap between the batch head and the internal components, resulting in poor contact between the batch head and the grounded internal components, making static electricity Is not ideal for exporting. Furthermore, the oil stains and rust on the internal components and the surface of the bit will also aggravate the phenomenon of poor contact between the bit and the grounded internal components, which will result in the static electricity generated by the operation of the bit being unable to be discharged, and there is a greater risk.

Therefore, it is necessary to design a new electric lock structure to overcome the above defects.

The purpose of the present invention is to provide an electric lock structure, so that the static electricity generated by the rotation of the head of the electric lock structure has a good discharge effect.

In order to achieve the above object, the present invention provides an electric lock structure including: a ground wire for grounding; a main body including a body and a batch of heads, wherein the body is connected to the ground wire, the batch head is connected to the body, and the batch head Can rotate relative to the body; and a first structure made of a conductive material, wherein the first structure is used to connect with the body, a side wall of the bit contacts the first structure, and the bit can be relative to the first structure Rotation; wherein, the position where the bit contacts the first structure on the bit is different from the position where the bit and the body are connected on the bit, when the bit rotates relative to the body, the static electricity generated by the bit is conducted to the ground line through the body , And the static electricity generated by the bit in turn is conducted to the ground line through the first structure and the body.

Preferably, the first structure has a first opening, the bit passes through the first opening and protrudes from the first opening, and a side wall of the first opening is in contact with the side wall of the bit.

Preferably, a contact end having a first opening on the first structure is tapered, and a cross section of the contact end gradually decreases in a first direction, which extends from the body toward a top end of the bit One direction, and a plane where the cross-section lies is perpendicular to the first direction.

Preferably, the first structure is a hollow structure and has a second opening, the first opening communicates with the second opening, the first structure is sleeved on the bit, and the end of the first structure with the second opening is fixed to the body connection.

Preferably, the first structure includes a first part and a second part, the first part is a hollow conical structure, the second part is a hollow cylindrical structure, and the first part is in communication with the second part.

Preferably, the electric lock structure of the present invention further includes: a second structure connected to the first structure, wherein the second structure is in contact with the side wall of the bit and the bit can be relative to the second junction When the batch head rotates relative to the body, the static electricity generated by the batch head is conducted to the ground line through the second structure, the first structure, and the body in turn, and the position where the second structure contacts the batch head on the batch head is different from the first A position where the structure contacts the batch head on the batch head.

Preferably, the second structure has elasticity to reduce the friction between the second structure and the bit.

Preferably, the second structure is disposed between the first structure and the bit, the second structure has a first end and a second end opposite to each other, the first end is fixedly connected to the first structure, and the second end is used To make contact with the side wall of the bit.

Preferably, the number of the second structures is two, and the two second structures are disposed on opposite sides of the bit to contact the opposite sides of the bit.

Preferably, the body includes a first body and a second body, the second body is connected to the first body and the bit, a fixed end of the bit is inserted into the second body to connect with the second body, and the ground wire is connected to the first body Connection, the first structure is fixedly connected to the first body, when the batch head rotates relative to the body, the static electricity generated by the batch head is conducted to the ground line through the second body and the first body in turn, and the static electricity generated by the batch head is sequentially passed through the first The structure and the first body are conducted to the ground wire.

Or, the body includes a first body and a second body, the second body is connected to the first body and the batch head, one end of the batch head is inserted into the second body to connect to the second body, and the ground wire is connected to the first body, the first The structure is fixedly connected to the second body. When the batch head rotates relative to the body, the static electricity generated by the batch head is transmitted to the ground line through the second body and the first body in sequence, and the static electricity generated by the batch head passes through the first structure and the second body in sequence. And the first body is conducted to the ground wire.

Preferably, the main body further includes a housing, the bit includes a third portion, the third portion is located outside the housing and exposes the body, the first structure is located outside the housing, and the first structure is in contact with a side wall of the third portion.

Compared with the prior art, the present invention provides an electric lock structure by adding a first structure to the electric lock structure, and the first structure is connected to a body of a main body of the electric lock structure and is in contact with the side wall of the batch head of the main body, Thus, when the batch head rotates relative to the body, the static electricity generated by the batch head is conducted to the ground wire through the body to be led out, and the static electricity generated by the batch head can be conducted to the ground wire through the first structure and the body in turn. This is equivalent to secondary grounding for the batch head, which can instantly discharge and release the grounding impedance to prevent damage to electronic components and their circuits and electric lock structures. Moreover, when there is a poor contact between the batch head and the internal components used for grounding, which can not be directly transmitted to the body through the batch head, the static electricity generated by the operation of the batch head can also be conducted to the body through the first structure and be discharged through the ground wire. To avoid the situation that the contact between the bit and the grounded internal component is poor, which can not be directly transmitted to the body through the bit. Thus, the electric lock structure of the present invention has the advantages of good anti-static effect, simple structure, and convenience.

In order to have a better understanding of the above and other aspects of the present invention, the following examples are specifically described in conjunction with the accompanying drawings as follows:

10: ground wire

11: main body

12: The first structure

13: Second structure

100: electric lock structure

110: shell

111: Ontology

112: batch head

121: The first opening

122: contact end

123: Second opening

124: fixed part

131: the first end

132: Second end

1112: Second body

1120: Side wall

1121: Part Three

1201: Part One

1202: Part Two

1210: Side wall

FIG. 1 is a partial structural diagram of an electric lock structure 100 according to an embodiment of the invention.

FIG. 2 is a schematic diagram of the first structure 12 shown in FIG. 1.

FIG. 3 is a schematic structural view of the first portion 1201 of the first structure 12 shown in FIG. 2.

In order to gain a better understanding of the purpose, structure, features and functions of the present invention, the following is a detailed description of the embodiments.

Please refer to FIGS. 1 to 3, FIG. 1 is a partial structural diagram of an electric lock structure 100 according to an embodiment of the present invention, and FIG. 2 is a structure according to the first structure 12 shown in FIG. 1 Schematic diagram, and FIG. 3 is a schematic diagram of the structure of the first portion 1201 of the first structure 12 shown in FIG. 2.

In one embodiment, an electric lock structure 100 is proposed. The electric lock structure 100 includes a ground wire 10, a main body 11 and a first structure 12. The grounding wire 10 is used for grounding to discharge electric leakage and static electricity. The main body 11 includes a body 111 and a batch of heads 112. The body 111 is connected to the batch head 112, and the batch head 112 can rotate relative to the body 111. The first structure 12 is made of a conductive material. The first structure 12 is used to connect with the body 111. A side wall 1120 of the bit 112 contacts the first structure 12 and the bit 112 can rotate relative to the first structure 12. The position where the bit 112 contacts the first structure 12 on the bit 112 is different from the position where the bit 112 and the body 111 are connected on the bit 112. When the bit 112 rotates relative to the body 111, the static electricity generated by the bit 112 is conducted to the ground line 10 through the body 111, and the static electricity generated by the bit 112 is sequentially conducted to the ground line 10 through the first structure 12 and the body 111.

In the embodiment of the present invention, a first structure is added to the electric lock structure, and the first structure is connected to the body of the electric lock structure and is in contact with the side wall of the bit. Therefore, when the bit rotates relative to the body, the static electricity generated by the bit In addition to being conducted to the ground wire through the body for export, the static electricity generated by the batch head can be conducted to the ground wire through the first structure and the body in turn. For this The bit is equivalent to secondary grounding, which can instantly discharge and release the grounding impedance to prevent damage to electronic components and their circuits and electric lock structures. Moreover, when the contact between the bit and the internal component used for grounding is poor, and the static electricity on the bit cannot be directly transmitted to the body, the static electricity generated by the operation of the bit can be conducted to the body through the first structure and then derived through the ground wire In order to avoid the situation that the contact between the bit and the internal component used for grounding is poor, the static electricity on the bit cannot be discharged, and other components are damaged. Therefore, the electric lock structure of the embodiment of the present invention has the advantages of better anti-static effect, simple structure, and convenience.

Please continue to refer to FIG. 1 to FIG. 3, the first structure 12 has a first opening 121, the bit 112 passes through the first opening 121 and extends from the first opening 121, and the side wall 1210 of the first opening 121 and A side wall 1120 of the bit 112 contacts, so that when the bit 112 rotates relative to the body 111, the static electricity generated by the bit 112 can be conducted to the body 111 through the first structure 12 in contact with the bit 112 and through the body 111 To the ground wire 10, to discharge (including voltage) and release the ground impedance immediately, to prevent damage to electronic components and their circuits, to avoid possible damage to the electric lock structure and interrupt the ground. In addition, when there is a poor contact between the batch head and the internal components used for grounding, the static electricity generated by the operation of the batch head can also be led out, which greatly reduces or avoids the risk. In practical applications, the inner surface of the first opening 121 has a contact portion to achieve electrical connection with the bit 112. The contact portion includes an opposite outer ring portion and an inner ring portion, and the outer ring portion is provided And a circle of ball structures between the inner ring portions. The ball structure can rotate relative to the outer ring portion and the inner ring portion, so that the outer ring portion rotates relative to the inner ring portion with low friction. The outer ring portion is used for fixed connection with the inner surface of the first opening 121. The inner ring portion has a side wall 1210 to contact the side wall 1120 of the bit 112. When the bit 112 rotates, the inner ring portion rotates as the bit 112 rotates to maintain the side wall 1210 in contact with the side wall 1120 of the bit 112. The static electricity generated by the rotation of the bit 112 passes through The inner ring part and the ball structure are guided to the outer ring part, and the friction force is small and the noise is low. The contact portion is, for example, a bearing. It should be particularly noted that the bearing is only one embodiment of the present invention, and the contact portion may be other structures that can electrically connect the first structure 12 and the side wall 1120 of the bit 112 with low friction and low noise. The invention is not limited to this.

Further, the contact end 122 of the first structure 12 having the first opening 121 is tapered, and the cross section of the contact end 122 gradually decreases in the first direction. Wherein, the first direction is a direction extending from the body 111 toward a top end of the bit 112 (for contacting an object to be processed or operated, such as a screw, etc.), and the plane of the cross section is perpendicular to the first One direction. In other words, the contact end 122 has an inverted cone shape, and the first opening 121 is located at the top, thereby keeping the side wall 1210 of the first opening 121 in contact with the bit 112 while preventing the bit from shaking.

In this embodiment, the first structure 12 is a hollow structure and has a second opening 123, the first opening 121 communicates with the second opening 123, the first structure 12 is sleeved on the bit 112, and the first structure 12 The end having the second opening 123 is fixedly connected to the body 111. For example, the first structure 12 is sleeved on the body 111 through the second opening 123 and fixedly connected to the body 111. Specifically, the second opening 123 has an internal thread, and the position of the body 111 corresponding to the internal thread has an external thread. The first structure 12 and the body 111 are fixedly connected by screwing the internal thread and the external thread.

Further, the first structure 12 can be integrally formed to facilitate manufacturing, simplify the manufacturing process, and reduce costs. Alternatively, the first structure 12 may also be split to facilitate assembly on the electric lock structure 100. As shown in FIG. 2, the first structure 12 includes a first part 1201 and a second part 1202, and the first part 1201 is a In the hollow tapered structure, the second part 1202 is a hollow columnar structure, and the first part 1201 and the second part 1202 are in communication. Wherein, the bottom opening of the hollow tapered structure is docked with the second opening 123 of the hollow columnar structure, so that the first The part 1201 and the second part 1202 are connected for the passage of the batch head 112. In an embodiment, the first part 1201 and the second part 1202 can be connected by screwing. The side of the first part 1201 connected to the second part 1202 has a fixing portion 124. The fixing portion 124 and the first opening 121 are located on opposite sides of the first portion 1201. The fixing portion 124 is directed from the first portion 1201 toward the first The two parts 1202 extend on one side and have a thread on the outer surface. The inner surface of the second portion 1202 also has threads corresponding to the position of the fixing portion 124. When the first part 1201 is combined with the second part 1202, the second part 1202 is sleeved on the surface of the fixing portion 124, and is screwed through threads to achieve fixing. Of course, in other embodiments, the first part 1201 and the second part 1202 can be detachably connected in a snap-fit manner to facilitate assembly and disassembly, but the present invention is not limited to this, specifically by the designer according to the actual situation Certainly, I will not repeat them here.

Further, the body 111 includes a first body (not shown in the drawings) and a second body 1112, the second body 1112 is connected to the first body and the bit head 112, and a fixed end of the bit head 112 (and the head 112) The opposite end) is inserted into the second body 1112 to be connected to the second body 1112, the ground wire 10 is connected to the first body, the first structure 12 is fixedly connected to the second body 1112, when the batch head 112 rotates relative to the body 111, the batch The static electricity generated by the head 112 is sequentially conducted to the ground line 10 through the second body 1112 and the first body, and the static electricity generated by the batch head 112 is sequentially conducted to the ground line 10 through the first structure 12, the second body 1112, and the first body. In other words, in addition to the path of static electricity generated by the bit 112 being sequentially conducted to the ground line 10 through the second body 1112 and the first body, an additional order is conducted to the ground through the first structure 12, the second body 1112, and the first body The path of the line 10, therefore, has a better electrostatic discharge effect. Or, in other embodiments, the ground wire 10 is connected to the first body, and the first structure 12 is fixedly connected to the first body. When the bit 112 rotates relative to the body 111, the static electricity generated by the bit 112 sequentially The static electricity generated by the second body 1112 and the first body is conducted to the ground wire 10, and the static electricity generated by the bit 112 is sequentially conducted to the ground wire 10 via the first structure 12 and the first body.

Further, the main body 11 further includes a housing 110, the bit 112 includes a third portion 1121, the third portion 1121 is located outside the housing 110 and exposes the body 111, the first structure 12 is located outside the housing 110, the first structure 12 and the third The side wall 1120 of the portion 1121 contacts. That is to say, the position where the bit 112 contacts the first structure 12 on the bit 112 is different from the position where the bit 112 and the body 111 are connected on the bit 112.

Please continue to refer to FIG. 3, the electric lock structure 100 may further include a second structure 13, the second structure 13 is connected to the first structure 12, the second structure 13 is in contact with the side wall 1120 of the bit 112 and the bit 112 may be opposite The second structure 13 rotates. When the bit 112 rotates relative to the body 111, the static electricity generated by the bit 112 can be conducted to the ground line 10 via the second structure 13, the first structure 12, and the body 111 in sequence. Specifically, the static electricity generated by the bit 112 can be conducted to the ground line 10 through the second structure 13, the first structure 12, the second body 1112 and the first body in sequence. Alternatively, the static electricity generated by the bit 112 is sequentially conducted to the ground line 10 via the second structure 13, the first structure 12 and the first body. As a result, the second structure 13 is grounded three times and the static electricity is better discharged to reduce risks and improve safety. In this embodiment, the second structure 13 is also in contact with the side wall 1210 of the third portion 1121, but the invention is not limited thereto. Further, the position where the bit 112 contacts the second structure 13 on the bit 112 is different from the position where the bit 112 contacts the first structure 12 on the bit 112. In a practical example, the second structure 13 has elasticity to maintain the contact between the second structure 13 and the bit 112 while reducing the friction between the second structure 13 and the bit 112, thereby increasing the service life. For example, the second structure 12 may be an elastic screw or a structure with a spring, but the invention is not limited thereto.

Further, the second structure 13 is disposed between the first structure 12 and the bit 112. The second structure 13 has a first end 131 and a second end 132 opposite to each other. The first end 131 is fixedly connected to the first structure 12 The second end 132 is used to contact the side wall 1120 of the bit 112. Therefore, when the bit 112 rotates relative to the body 111, the static electricity generated by the bit 112 can be conducted to the ground line 10 via the second structure 13, the first structure 12, and the body 111 in sequence. Specifically, the first structure 12 has a through hole, and the first end 131 of the second structure 13 passes through the through hole and is fixedly connected to the through hole, so that the first structure 12 and the second structure 13 are fixed to each other, However, the invention is not limited to this. The first structure 12 and the second structure 13 can also be fixed by screwing, snapping or other methods, which are determined by the designer according to the actual situation, and will not be repeated here. Preferably, the second structure 13 is disposed between the first part 1201 and the bit 112, but the invention is not limited thereto. The second structure 13 can also be disposed between the second portion 1202 and the bit 112. In this embodiment, the number of the second structure 13 is two, so as to improve the stability of the contact. When one of the second structures 13 is in poor contact with the bit 112, another second structure 13 is in contact with the bit 112 to further reduce the risk. Preferably, the two second structures 13 are disposed on opposite sides of the bit 112 to contact the opposite sides of the bit 112 to further improve contact stability and balance weight.

In an embodiment, the first structure 12 can be rotated relative to the bit 112 to adjust the length of the bit 112 extending from the body 111, which increases convenience in use.

In summary, the present invention provides an electric lock structure by adding a first structure to the electric lock structure, and the first structure is connected to the body of the electric lock structure and is in contact with the side wall of the bit, thus when the bit is opposite to the body When rotating, the static electricity generated by the bit head is conducted to the ground wire through the body to be led out, and the static electricity generated by the bit head can be conducted to the ground wire through the first structure and the body in turn. This is equivalent to secondary grounding for the batch head, which can immediately discharge and release the grounding impedance to prevent damage to electronic components and their circuits and electric lock structures. Also, when approved When the contact between the head and the grounded internal component is poor, and the static electricity cannot be directly transmitted to the body through the batch head, the static electricity generated by the operation of the batch head can be conducted to the body through the first structure and exported through the ground wire, to avoid the The internal components used for grounding are in poor contact, which leads to the situation that they cannot be directly transmitted to the body through the bit. Therefore, the electric lock structure of the embodiment of the present invention has the advantages of better anti-static effect, simple structure, and convenience.

In summary, although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be deemed as defined by the scope of the attached patent application.

10: ground wire

11: main body

12: The first structure

100: electric lock structure

110: shell

111: Ontology

112: batch head

121: The first opening

122: contact end

123: Second opening

1112: Second body

1120: Side wall

1121: Part Three

1201: Part One

1202: Part Two

Claims (10)

An electric lock structure includes: a ground wire for grounding; a body including a body and a batch of heads, wherein the body is connected to the ground wire, the batch head is connected to the body, and the batch head can be opposite to The body rotates; and a first structure made of a conductive material, wherein the first structure is used to connect with the body, a side wall of the bit contacts the first structure, and the bit can be opposite to The first structure rotates; wherein, a position where the batch head contacts the first structure on the batch head is different from a position where the batch head and the body are connected on the batch head, and when the batch head is relative to the body When rotating, the static electricity generated by the batch head is conducted to the ground line through the body, and the static electricity generated by the batch head is conducted to the ground line in turn through the first structure and the body. The electric lock structure as described in item 1 of the patent application scope, wherein the first structure has a first opening, the bit passes through the first opening and protrudes from the first opening, and one of the first openings The side wall is in contact with the side wall of the bit. The electric lock structure as described in item 2 of the patent application scope, wherein a contact end having the first opening on the first structure is tapered, and a cross section of the contact end gradually decreases in a first direction, The first direction is a direction extending from the body toward a top of the bit, and a plane on which the cross-section lies is perpendicular to the first direction. The electric lock structure as described in item 2 of the patent application scope, wherein the first structure is a hollow structure and has a second opening, the first opening communicates with the second opening, the first structure is nested in the batch On the head, and the end with the second opening on the first structure is fixedly connected with the body. The electric lock structure as described in item 1 of the patent application scope, wherein the first structure includes a first part and a second part, the first part is a hollow tapered structure, and the second part is a hollow cylindrical structure, And the first part is in communication with the second part. The electric lock structure as described in item 1 of the patent application scope further includes: a second structure connected to the first structure, wherein the second structure is in contact with the side wall of the bit and the bit can be opposite to the The second structure rotates, when the batch head rotates relative to the body, the static electricity generated by the batch head is conducted to the ground line through the second structure, the first structure and the body in turn, and the second structure and the batch A position where the head contacts the batch head is different from a position where the first structure contacts the batch head on the batch head. The electric lock structure as described in item 6 of the patent application scope, wherein the second structure has elasticity to reduce the friction between the second structure and the bit. The electric lock structure as described in item 6 of the patent application scope, wherein the second structure is disposed between the first structure and the batch head, the second structure has a relative A first end and a second end, the first end is fixedly connected to the first structure, and the second end is used to contact the side wall of the batch head. According to the electric lock structure described in item 6 of the patent application scope, the number of the second structure is two, and the two second structures are arranged on opposite sides of the batch head to be opposite to the batch head Two sides touch. The electric lock structure as described in item 1 of the patent application scope, wherein the main body further includes a housing, the batch includes a third portion, the third portion is located outside the housing and exposes the body, and the first structure is located at the Outside the casing, and the first structure is in contact with a side wall of the third part.

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