Handheld electric appliance with improved quick connection structure

Abstract

The utility model relates to a handheld electric appliance with an improved quick connection structure, which comprises an electric appliance handheld part and a head part detachably assembled on the electric appliance handheld part in an extrusion manner, and the electric appliance handheld part is provided with a locking mechanism; wherein the locking mechanism is configured to lock the head part or release the locking state of the head part by circumferentially rotating back and forth along the central axis of the handheld part of the electric appliance after the locking mechanism is subjected to rotating driving force when the head part is assembled on the handheld part of the electric appliance. Therefore, when the locking mechanism is enabled to circumferentially rotate back and forth along the central axis of the handheld part of the electric appliance by applying a force, the head part and the handheld part of the electric appliance can be assembled when the locking mechanism locks the head part, and the head part and the handheld part of the electric appliance can be disassembled and separated when the locking state of the head part is released by the locking mechanism. The structure of the handheld electric appliance is simplified, and the assembly and disassembly operation efficiency of the head and the handheld part of the electric appliance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of handheld electric appliances, especially to a handheld electric appliance with an improved quick connection structure. BACKGROUND

[0002] There are many handheld electric appliances on the market, such as handheld flashlights, handheld work lights, handheld fans, and handheld vacuum cleaners. The head of a handheld electric appliance is usually detachably replaceable. Such a handheld electric appliance mainly comprises an electric appliance handheld part and a head. The head is usually detachably mounted on the electric appliance handheld part to complete the electrical connection between the electrical components in the head and the electrical components of the electric appliance handheld part, ensuring the normal operation of the handheld electric appliance. For example, a handheld flashlight is a common handheld electric appliance of this type.

[0003] The common handheld electric appliance on the market comprises a head, an electric appliance handheld part, and a telescopic sleeve. The front end of the electric appliance handheld part has a connector sleeve. The head is detachably mounted in the connector sleeve of the electric appliance handheld part. The telescopic sleeve is located outside the connector sleeve and slides back and forth along the axial direction of the connector sleeve. To replace the head, slide the telescopic sleeve in one direction to detach the head from the connector sleeve, completing the separation of the head and the electric appliance handheld part.

[0004] However, the above-mentioned handheld electric appliance has the following disadvantages: the assembly structure of the head and the electric appliance handheld part is complex, and the operation of assembling the head onto the electric appliance handheld part is relatively complex, reducing the assembly efficiency of the head and the electric appliance handheld part, i.e., the quick connection effect of the head and the electric appliance handheld part cannot be achieved. SUMMARY

[0005] The utility model solves the technical problem of the prior art. The handheld electric appliance with an improved quick connection structure only needs to be simply rotated back and forth to easily assemble or separate the head and the electric appliance handheld part.

[0006] The technical solution adopted by the utility model to solve the above technical problem is as follows: a handheld electric appliance with an improved quick connection structure comprises:

[0007] an electric appliance handheld part;

[0008] a head detachably assembled onto the electric appliance handheld part in an extrusion manner;

[0009] characterized in that the electric appliance handheld part is provided with a locking mechanism; wherein the locking mechanism is configured to, when the head is assembled onto the electric appliance handheld part, make the locking mechanism itself rotate back and forth along the circumferential direction of the electric appliance handheld part along the central axis of the electric appliance handheld part under the driving force of rotation to lock the head or release the locking state of the head.

[0010] Improvements are made in the handheld electric appliance with an improved quick connection structure. The locking mechanism comprises:

[0011] The locking mechanism comprises:

[0012] An outer sleeve body arranged on the handheld part of the electric appliance and capable of moving back and forth along the central axis of the handheld part of the electric appliance under the rotation driving force;

[0013] An inner sleeve body located inside the outer sleeve body, the inner sleeve body having a mounting cavity fitted with the head and a plurality of through holes formed along the circumference of the inner sleeve body and communicating with the mounting cavity; wherein the inner sleeve body and the outer sleeve body have a cavity formed along the circumference of the inner sleeve body therebetween;

[0014] A rolling ball set having at least one rolling ball, each rolling ball being located in the cavity formed by the inner sleeve body and the outer sleeve body and being movable in the cavity; wherein the rolling ball is configured to move in the cavity under the rolling driving force and move part of the rolling ball into the corresponding through hole and abut against the head in the mounting cavity, and the rolling ball is configured to move out of the corresponding through hole to release the abutment against the head in the mounting cavity when not under the rolling driving force;

[0015] A driving part set having a number of driving parts corresponding to the number of rolling balls in the rolling ball set, the driving parts being arranged on the outer sleeve body and located in the cavity formed by the outer sleeve body and the inner sleeve body; wherein the driving parts are configured to apply the rolling driving force to drive part of the rolling ball to move into the corresponding through hole and move the rolling ball out of the corresponding through hole when not under the rolling driving force along with the circumferential rotation of the outer sleeve body;

[0016] And at least one elastic member elastically stretchable and restrained, the elastic member being configured to be pressed or released by the corresponding driving part moving back and forth.

[0017] Further, in the handheld electric appliance with the improved quick connection structure, the driving parts of the driving part set are arranged at intervals along the outer sleeve body, and at least one pair of two adjacent driving parts in front and back form a separation cavity, and the separation cavity is provided with the elastic member.

[0018] Improvingly, in the handheld electric appliance with the improved quick connection structure, the driving part comprises:

[0019] A driving part body arranged on the outer sleeve body;

[0020] A sliding part formed from the side wall of the driving part body and extending towards the inner sleeve body, and forming a top contact arc surface close to the inner sleeve body;

[0021] An inclined guide surface connecting the side wall of the driving part body and the top contact arc surface of the sliding part, the guide surface being configured to guide part of the rolling ball under the rolling driving force into the corresponding through hole and move the rolling ball out of the corresponding through hole when not under the rolling driving force.

[0022] Further, in the handheld electric appliance with the improved quick connection structure, the included angle between the guide surface and the body side wall of the driving part corresponding to the guide surface is obtuse.

[0023] Further improvement, in the handheld electric appliance with the improved quick connection structure, the outer side wall of the inner sleeve body is provided with a stop part cooperating with the outer sleeve body to limit the rotation stroke of the outer sleeve body.

[0024] Further improvement, in the utility model, the handheld electric appliance with the improved quick connection structure further includes a threaded sleeve connected with the outer sleeve body and the inner sleeve body respectively, and the elastic member is elastically and flexibly limited in the space formed by the outer sleeve body, the inner sleeve body, the driving part, the stop part and the threaded sleeve.

[0025] Further, in the handheld electric appliance with the improved quick connection structure, the outer side wall of the inner sleeve body is provided with a plurality of stop parts at intervals, and one rolling ball is correspondingly arranged between two adjacent stop parts.

[0026] Further improvement, in the handheld electric appliance with the improved quick connection structure, the handheld part of the electric appliance has a sliding member movably arranged in the mounting cavity of the inner sleeve body and cooperating with the extrusion force of the head part.

[0027] Optionally, in the utility model, the handheld electric appliance is a handheld flashlight or a handheld work lamp or a handheld fan or a handheld dust collector.

[0028] Compared with the prior art, the handheld electric appliance of the utility model has the advantages that: on the basis of the existing electric appliance handheld part and the head part, a locking mechanism is arranged on the electric appliance handheld part, so that when the head part is assembled on the electric appliance handheld part, the locking mechanism itself is driven to rotate along the central axis of the electric appliance handheld part to lock or unlock the head part, so that the locking mechanism locks the head part to complete the assembly of the head part and the electric appliance handheld part, and the locking mechanism unlocks the head part to complete the disassembly of the head part and the electric appliance handheld part. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the handheld electric appliance with the improved quick connection structure in the embodiments of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the handheld electric appliance with the improved quick connection structure in the embodiments of the utility model; Figure 1 It is a state schematic diagram of the electric appliance handheld part of the handheld electric appliance shown in the figure when the head part is not assembled;

[0031] Figure 3 It is a state schematic diagram of the electric appliance handheld part of the handheld electric appliance shown in the figure when the head part is not assembled; Figure 2 ​

[0032] Figure 4 This is a schematic diagram of the inner sleeve structure;

[0033] Figure 5 for Figure 3 Enlarged diagram of part A in the diagram;

[0034] Figure 6 for Figure 2 A cross-sectional view of the handheld part of the electrical appliance in the indicated state;

[0035] Figure 7 for Figure 1 The diagram shows the state of the handheld appliance after the head is inserted.

[0036] Figure 8 for Figure 7 A schematic diagram showing the state of the inner sleeve of the handheld part of the Zhongdian appliance when it is removed;

[0037] Figure 9 This is a schematic diagram of the head structure of a handheld electronic device.

[0038] Figure 10 for Figure 8 Enlarged schematic diagram of part B in the diagram;

[0039] Figure 11 for Figure 1 A cross-sectional view of the handheld electrical appliance shown;

[0040] Figure 12 for Figure 11 Enlarged schematic diagram of section C. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] This embodiment provides a handheld electrical appliance with an improved quick-connect structure; the handheld electrical appliance in this embodiment is a flashlight. See also... Figures 1 to 6 As shown, the handheld electrical appliance with an improved quick-connect structure in this embodiment includes an electrical handheld part 1 and a head 2. The electrical handheld part 1 is the body of the flashlight, and the head 2 is the lamp head of the flashlight. The head 2 is detachably assembled to the electrical handheld part 1 by compression. A lamp bowl and a light-emitting element are installed inside the head 2. The electrical handheld part 1 is provided with a locking mechanism. The locking mechanism is configured such that when the head 2 is assembled to the electrical handheld part 1, the locking mechanism itself rotates back and forth circumferentially along the central axis L of the electrical handheld part 1 to lock or release the head 2 from the locked state after being driven by rotation.

[0043] Specifically, in this embodiment, the locking mechanism includes an outer sleeve 11, an inner sleeve 12, a ball assembly, a drive assembly, and two elastic members 15. Wherein:

[0044] The outer sleeve body 11 is arranged on the handheld part 1 of the electric appliance and can be moved back and forth along the central axis L of the handheld part 1 under the driving force of rotation;

[0045] The inner sleeve body 12 is located inside the outer sleeve body 11, and has a mounting cavity 120 arranged to accommodate the head part 2 and a plurality of through holes 121 formed along the circumference of the inner sleeve body 12 and in communication with the mounting cavity 120; wherein the inner sleeve body 12 and the outer sleeve body 11 have the cavity 10 formed along the circumference of the inner sleeve body 12;

[0046] The ball group has a plurality of balls 13, each of which is located in the cavity 10 formed by the inner sleeve body 12 and the outer sleeve body 11 and can move in the cavity 10; wherein the ball 13 is configured to move in the cavity 10 under the driving force of rolling and move part of the ball 13 into the corresponding through hole 121 and be abutted by the moved part of the ball against the head part 2 in the mounting cavity 120; and the ball 13 moves out of the corresponding through hole 121 to release the abutted state of the head part 2 in the mounting cavity 120 when not under the driving force of rolling; wherein the through hole 121 is a channel with a length, the front end of the channel is open to match the corresponding ball to enter the through hole, the rear end of the channel is open to match the ball that has entered the through hole to abut against the head part in the mounting cavity, the aperture of the rear end of the channel is smaller than the aperture of the front end of the channel, so that the rear end of the channel limits the ball, so as to prevent the ball that has entered the through hole from falling out of the rear end. The length of the channel of the through hole 121 (which can also be referred to as the thickness of the pipe wall of the inner sleeve body 12 at the through hole 121) is smaller than the diameter of the ball 13, so that the ball can protrude part of it from the through hole to abut against the head part 2 in the mounting cavity 120;

[0047] The drive group has a number of drive parts 14 corresponding to the number of balls in the ball group, and the drive part 14 is arranged on the outer sleeve body 11 and located in the cavity 10 formed by the outer sleeve body 11 and the inner sleeve body 12; wherein the drive part 14 is configured to apply the driving force of rolling to drive part of the ball 13 to move into the corresponding through hole 121 and to move the ball 13 out of the corresponding through hole 121 when not under the driving force of rolling, so as to limit the ball 13 in a predetermined limited space, so that the ball 13 cannot move out of the through hole 121;

[0048] And, at least one elastic member 15 is elastically and flexibly limited and the elastic member 15 is configured to be pressed or released by the corresponding driving part 14 moving back and forth. In this embodiment, the elastic member 15 is a spring. It is to be noted that after the elastic member is pressed by the corresponding driving part moving, and the outer sleeve body is not pressed by the external rotating force again, the elastic member drives the driving part to move reversely under the elastic restoring force of the elastic member, so that the outer sleeve body also rotates reversely with the driving part. Here, after the elastic member applies the force to the driving part to move reversely, the driving part drives the part of the ball to move into the corresponding through hole, so that the part of the ball moving into the through hole abuts against the head in the mounting cavity, and the fast connection of the head on the hand-held part of the electric appliance is completed. After the driving part 14 is pressed by the elastic force of the elastic member 15, the driving part generates the rolling driving force to drive the ball to move.

[0049] Specifically, the hand-held electric appliance with the improved fast connection structure in this embodiment further comprises a screw sleeve 17 connected to the outer sleeve body 11 and the inner sleeve body 12 respectively, and the elastic member 15 is elastically and flexibly limited in the space formed by the outer sleeve body 11, the inner sleeve body 12, the driving part 14, the stop part 122 and the screw sleeve 17.

[0050] It is to be noted that the driving part 14 in this embodiment is limited between the inner sleeve body 12 and the screw sleeve 17, so that the driving part cannot move up and down, but can only move in the circumferential direction of the inner sleeve body.

[0051] As the structure for abutting the head against the ball, see Figure 11 and Figure 12 The head 2 is provided with a clamping groove 20 for clamping the part of the ball moving into the through hole and moving out. The clamping groove 20 is preferably an annular clamping groove in the circumferential direction of the head. Of course, the clamping groove 20 is located on the head 2 and in the position of the head entering the mounting cavity 120 of the hand-held part 1 of the electric appliance.

[0052] As the arrangement of the driving part group on the outer sleeve body, see Figure 3 The driving parts 14 of the driving part group in this embodiment are arranged at intervals along the outer sleeve body 11, and at least one pair of two adjacent driving parts 14 are arranged to form a separation cavity 140, and the elastic member 15 is arranged in the separation cavity 140.

[0053] In order to make the outer sleeve body move back and forth along the central axis L of the hand-held part of the electric appliance more stably, the hand-held electric appliance in this embodiment is provided with two symmetrically arranged elastic members 15.

[0054] In order to enable the ball to abut against the slope of the outer sleeve 11 and prevent the outer sleeve 11 from automatically turning, the electric appliance hand-held part 1 of this embodiment is provided with a sliding member 16 movably arranged in the mounting cavity 120 of the inner sleeve 12 and capable of bearing the extrusion force of the head part 2. In this embodiment, an elastic member 18, preferably a spring, is arranged in the mounting cavity 120 of the inner sleeve 12 below the sliding member 16 and is elastically compressed by the downward movement of the sliding member 16.

[0055] In order to enable the ball to more smoothly move into the corresponding through hole of the inner sleeve to make a radial movement of a limited distance, referring to Figure 3 In this embodiment, the driving part 14 comprises a driving part body 141, a sliding part 142 and an inclined guide surface 143. The driving part body 141 is arranged on the outer sleeve 11. The sliding part 142 is formed from the side wall 141a of the driving part body 141 and extends towards the inner sleeve 12 and forms a top contact arc surface 142a close to the inner sleeve 12. The guide surface 143 connects the side wall 141a of the driving part body and the top contact arc surface 142a of the sliding part 142. The guide surface 143 is configured to guide the part of the ball 13 driven by the rolling driving force into the corresponding through hole 121 and to enable the ball 13 not driven by the rolling driving force to move out of the corresponding through hole 121. When the ball 13 moves out of the corresponding through hole 121, the side wall 141a of the driving part body abuts against the ball 13, so that the ball 13 is limited in the limited space formed by the guide surface 143, the side wall 141a of the driving part body and the outer side wall of the sliding part 16. The top contact arc surface 142a is higher than the side wall 141a of the driving part body 141. Thus, after the product is assembled, the top contact arc surface 142a of the driving part 14 abuts against the ball 13, and the top contact arc surface 142a is higher than the side wall 141a of the driving part body, so that the ball can only make a radial movement of a limited distance in the through hole, and the ball cannot run into the cavity 10.

[0056] Preferably, the included angle Φ between the guide surface 143 and the side wall 141a of the driving part body to which the guide surface 143 is connected is an obtuse angle.

[0057] In order to limit the turning stroke of the outer sleeve, in this embodiment, the outer side wall of the inner sleeve 12 is provided with a stop part 122 for limiting the turning stroke of the outer sleeve 11 and abutting against one end of the elastic member 15. Of course, as a preferred arrangement, in this embodiment, the outer side wall of the inner sleeve 12 is provided with a plurality of the above-mentioned stop parts 122 at intervals, and one ball 13 is arranged between two adjacent stop parts 122.

[0058] Of course, according to actual needs, the hand-held flashlight can be replaced by a hand-held work lamp, a hand-held fan or a hand-held dust collector. The corresponding head is the head of the replaced hand-held electric appliance, and the corresponding electric appliance hand-held part is the hand-held part of the replaced hand-held electric appliance.

[0059] The following describes the use of the hand-held electric appliance with the improved quick connection structure in this embodiment: Figures 1 to 12

[0060] (1) When it is needed to install the head on the electric appliance hand-held part

[0061] When the head 2 is not inserted into the installation cavity 120 of the electric appliance hand-held part 1, the inclined angle position part of the driving part 14 is pressed by the corresponding rolling ball 13, and the elastic member 15 is in a compressed state, so that the automatic rotation of the outer sleeve body 11 due to the elastic restoring force of the elastic member 15 is limited.

[0062] When the head 2 is inserted into the installation cavity 120 of the electric appliance hand-held part 1, the sliding member 16 moves downward due to the pressing of the head 2. When the head 2 continuously presses the sliding member 16 to move downward, until the clamping groove 20 of the head 2 is opposite to the through hole 121 of the inner sleeve body 12, at this time, the rolling ball 13 loses the internal pressure and moves towards the inside of the through hole 121 (i.e. the direction of the installation cavity 120), so that the above-mentioned inclined angle position part of the driving part 14 no longer bears the pressing force of the rolling ball 13, and the elastic force bearing surface 144 of the driving part 14 of the outer sleeve body 11 also bears the pressure generated by the elastic member 15 due to the elastic restoring force, so that the outer sleeve body 11 automatically rotates, and stops rotating until the sliding part 142 on one side of the driving part 14 contacts the stop part 122 of the inner sleeve body 12. At this time, the top contact arc surface 142a on the driving part 14 is opposite to the through hole 121, so as to prevent the rolling ball 13 from moving outward of the corresponding through hole 121, and at this time, the rolling ball 13 has been partially inserted into the clamping groove 20 of the head 2, so as to automatically clamp the head 2 and complete the quick connection of the head and the electric appliance hand-held part.

[0063] (2) When it is needed to remove the head from the electric appliance hand-held part

[0064] When the outer sleeve body 11 is not rotated by an external force, the top contact arc surface 142a of the driving part 14 on the outer sleeve body 11 abuts against the rolling ball 13.

[0065] ​When an external force is applied to rotate the outer sleeve 11, the driving part 14 rotates with the outer sleeve 11 until the driving part body 141 of the driving part 14 is opposite to the through hole 121, at this time, a radially outward moving space is provided for the radial movement of the ball 13, the ball 13 rolls into the radially outward moving space because it is no longer pressed by the arc surface 142a, at the same time, the sliding part 16 moves upward and generates a pressure on the ball 13, until the sliding part 16 moves to the limited position, the sliding part 16 completely presses the ball 13 to prevent the ball 13 from moving to the inside of the through hole 121; at this time, the part on the ball 13 and outside the through hole 121 presses the inclined angle position part formed by the guide surface 143 and the driving part body 141 of the driving part 14, the outer sleeve 11 will be automatically rotated under the elastic pressure of the elastic part 15 without the driving of the external force, at this time, the ball 13 presses the inclined angle position part to prevent the automatic rotation of the outer sleeve 11, the clamping slot 20 of the head part 2 loses the pressure of the ball 13, and because the sliding part 16 moves upward, an upward pushing force is formed on the head part 2 to the outside of the mounting cavity 120, so that the head part 2 is automatically popped out from the mounting cavity 120 of the electric appliance hand part 1.

Claims

1. A handheld electric appliance with an improved quick connection structure, comprising: an electric appliance handle (1); a head (2) detachably assembled to the electric appliance handle (1) in a pressing manner; characterized in that the electric appliance handle (1) is provided with a locking mechanism; wherein the locking mechanism is configured to lock or release the head (2) by circumferential rotation of the locking mechanism itself along the central axis (L) of the electric appliance handle (1) under the action of a rotating driving force when the head (2) is assembled to the electric appliance handle (1).

2. The hand-held appliance having an improved quick coupling structure according to claim 1, characterized in that, The locking mechanism comprises: an outer sleeve (11) provided on the electric appliance handle (1) and circumferentially rotatable along the central axis (L) of the electric appliance handle (1) under the action of the rotating driving force; an inner sleeve (12) located inside the outer sleeve (11), the inner sleeve (12) having a mounting cavity (120) fitted with the head (2) and a plurality of through holes (121) formed circumferentially along the inner sleeve (12) and communicating with the mounting cavity (120); wherein the inner sleeve (12) and the outer sleeve (11) have a cavity (10) formed circumferentially along the inner sleeve (12) therebetween; a ball group having at least one ball (13), each ball (13) being located in the cavity (10) formed by the inner sleeve (12) and the outer sleeve (11) and being movable in the cavity (10); wherein the ball (13) is configured to move in the cavity (10) under the action of a rolling driving force and move part of the ball (13) into the corresponding through hole (121) and abut the head (2) in the mounting cavity (120) with the moved part of the ball; and the ball (13) moves out of the corresponding through hole (121) to release the abutting state of the head (2) in the mounting cavity (120) when not under the action of the rolling driving force; a driving part group having a number of driving parts (14) corresponding to the number of balls in the ball group, the driving parts (14) being provided on the outer sleeve (11) and located in the cavity (10) formed by the outer sleeve (11) and the inner sleeve (12); wherein the driving parts (14) are configured to apply the rolling driving force to drive part of the ball (13) to move into the corresponding through hole (121) and move the ball (13) not under the rolling driving force out of the corresponding through hole (121) with the circumferential rotation of the outer sleeve (11); and at least one elastic member (15) elastically stretchable and configured to be extruded or extruded by the corresponding driving part (14) moving back and forth.

3. The hand-held appliance having the improved quick coupling structure according to claim 2, characterized in that, The driving parts (14) of the driving part group are spaced apart along the outer sleeve (11), at least one pair of two adjacent driving parts (14) forming a separation cavity (140) therebetween, and the separation cavity (140) is provided with the elastic member (15).

4. The hand-held appliance having improved quick coupling structure as claimed in claim 2 wherein, The electric appliance handle (1) has a sliding member (16) movably arranged in the mounting cavity (120) of the inner sleeve (12) and configured to bear the pressing force of the head (2).

5. The hand-held appliance having the improved quick coupling structure according to any one of claims 2 to 4, characterized in that, The driving part (14) comprises: a driving part body (141) provided on the outer sleeve (11); A sliding part (142) is formed on the side wall (141a) of the driving part body (141) and extends towards the inner sleeve body (12) and forms a top contact arc surface (142a) close to the inner sleeve body (12); An inclined guide surface (143) is connected between the side wall (141a) of the driving part body and the top contact arc surface (142a) of the sliding part (142), and the guide surface (143) is configured to guide the part of the rolling ball (13) driven by the rolling driving force into the corresponding through hole (121) and to move the rolling ball (13) not driven by the rolling driving force out of the corresponding through hole (121).

6. The hand-held appliance having the improved quick coupling structure according to claim 5, characterized by, The included angle (Φ) between the guide surface (143) and the side wall (141a) of the driving part body connected thereto is obtuse.

7. The hand-held appliance having the improved quick coupling structure according to claim 5, characterized by, The outer side wall of the inner sleeve body (12) is provided with a stop part (122) matched with the outer sleeve body (11) to limit the rotation stroke of the outer sleeve body (11).

8. The hand-held appliance having the improved quick coupling structure according to claim 7, characterized by, A screw sleeve (17) connected with the outer sleeve body (11) and the inner sleeve body (12) respectively is further included, and the elastic member (15) is elastically and stretchably limited in the space formed by the outer sleeve body (11), the inner sleeve body (12), the driving part (14), the stop part (122) and the screw sleeve (17).

9. The hand-held appliance having the improved quick coupling structure according to claim 7, characterized in that, The outer side wall of the inner sleeve body (12) is provided with a plurality of the stop parts (122) at intervals, and one of the rolling balls (13) is correspondingly arranged between two adjacent stop parts (122).

10. The hand-held appliance having the improved quick coupling structure according to claim 5, characterized by, The handheld electric appliance is a handheld flashlight, a handheld work lamp, a handheld fan or a handheld dust collector.

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