Winder for dust collector

Abstract

The winder for the dust collector comprises a winding reel, a first limiting disc and a second limiting disc, the first limiting disc and the second limiting disc are arranged at the two ends of the winding reel, a connecting disc is arranged at the end, away from the first limiting disc, of the second limiting disc, an electric connecting piece is arranged on the connecting disc and used for connecting a power line and a wire, and a guide groove for fixing the wire is formed in the connecting disc. The first limiting disc, the second limiting disc and the winding reel can rotate in the circumferential direction relative to the connecting disc and the guide groove together. And through the arrangement of the guide groove, a wire can be fixed, in the use process of the winder, friction between the wire and the winding reel and the second limiting disc can be effectively prevented, the wire and a power line can also be prevented from being wound, and the connection stability between the wire and the motor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a cord reel for a vacuum cleaner. Background Art

[0002] A vacuum cleaner is a common cleaning device that uses a motor to create negative air pressure within a sealed housing to absorb dust. The motor needs to be powered by a power supply to work. In order to adjust the length of the power cord connected to the motor, a cord reel is provided on the vacuum cleaner. The cord is wound around the cord reel. One end of the power cord is connected to a plug, and the other end of the power cord is electrically connected to a wire that is electrically connected to the motor. The cord reel facilitates the retraction and length adjustment of the power cord. However, it has certain defects: since the wire is not fixed, the wire is prone to friction with the reel during rotation, and is easily wound into the reel and entangled with the power cord, thereby affecting the stability of the connection between the motor and the wire. Summary of the Invention

[0003] In order to solve the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a cord reel for a vacuum cleaner, which prevents the wire from being entangled with the power cord, thereby improving the stability of the connection between the wire and the motor.

[0004] In order to achieve the above-mentioned purpose, the utility model is designed to provide a cord reel for a vacuum cleaner, including a cord reel and a first limit plate and a second limit plate arranged at both ends of the cord reel. The second limit plate is provided with a connecting plate at one end away from the first limit plate, and the connecting plate is provided with an electrical connector for connecting the power cord and the wire. The connecting plate is provided with a guide groove for fixing the wire. The first limit plate, the second limit plate and the cord reel can rotate circumferentially relative to the connecting plate and the guide groove.

[0005] Furthermore, the guide groove and the connecting disk are provided separately or integrally.

[0006] Furthermore, the guide groove is arranged on the outer side of the connecting disk away from the first limiting disk, one end of the guide groove corresponds to the connecting disk, and the projection of the other end of the guide groove on the plane where the second limiting disk is located is located outside the second limiting disk. The part of the wire passing through the other end of the guide groove does not contact the second limiting disk, further reducing the friction between the wire and the second limiting disk and the probability of being wound into the winding drum.

[0007] Furthermore, the guide groove is provided with an opening on the side away from the second limiting plate, and the guide groove is provided with a guide groove bottom wall on the side close to the second limiting plate, and the opening is arranged opposite to the guide groove bottom wall. The guide groove bottom wall can separate the wire from the second limiting plate, thereby reducing friction between the wire and the second limiting plate.

[0008] Furthermore, a plurality of protrusions for arranging the wires are provided in the guide groove.

[0009] Furthermore, the protrusion is protruding from the bottom wall of the guide groove, and the protrusion is T-shaped.

[0010] Furthermore, an annular conductive member is provided within the reel for electrically connecting to the power cord. The annular conductive member rotates circumferentially with the reel. The electrical connector includes a resilient contact piece, the elastic end of which is constantly in contact with the annular conductive member. The end of the resilient contact piece, which is remote from the annular conductive member, is used to electrically connect to the wire. The annular conductive member and the resilient contact piece provide an electrical connection between the power cord and the wire.

[0011] Furthermore, the elastic contact piece has a pair of elastic ends, which can increase the contact area between the elastic contact piece and the annular conductive member, increase the conductive current, and improve the balance of the elastic contact piece so that it can stably abut against the annular conductive member.

[0012] Furthermore, the annular conductive member and the elastic contact piece are a pair, and the annular conductive member and the elastic contact piece are in one-to-one contact contact, so that the positive power line is electrically connected to the positive wire through one of the annular conductive members and one elastic contact piece, and the negative power line is electrically connected to the negative wire through the other annular conductive member and another elastic contact piece.

[0013] Furthermore, a first through hole is provided on the winding drum, and the power cord wound on the winding drum passes through the first through hole and enters the winding drum to be electrically connected to the annular conductive member.

[0014] Compared with the existing technology, the beneficial effect of the present invention is that the wire can be fixed by setting the guide groove. During the use of the reel, the wire can be effectively prevented from rubbing against the winding drum and the second limit disk, and the wire can be prevented from being entangled with the power cord, thereby improving the stability of the connection between the wire and the motor.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the cable reel when installed in this application.

[0017] Figure 2 It is a structural diagram of the cable reel and the mounting plate when assembled in this application.

[0018] Figure 3 yes Figure 2 Exploded diagram.

[0019] Figure 4 It is a structural diagram of the cable reel in this application.

[0020] Figure 5 yes Figure 4 Exploded diagram.

[0021] Figure 6 yes Figure 4 Schematic diagram of the structure of the middle connecting plate and guide groove.

[0022] Figure 7 yes Figure 4 A structural diagram from another angle. DETAILED DESCRIPTION

[0023] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the present application.

[0024] like Figures 1 to 7 As shown, the present application provides a cord reel 100 for a vacuum cleaner, comprising a cord reel 101 and a first limit disk 102 and a second limit disk 103 arranged at both ends of the cord reel 101. The cord reel 101 is used to wind a power cord (not shown in the figure), the first limit disk 102 and the second limit disk 103 are arranged in parallel and limit the power cord wound on the cord reel 101, one end of the power cord is connected to a plug 200, and the other end of the power cord is connected to a motor through a wire, and the plug 200 provides working power to the motor. The cord reel 100 is generally arranged in a host 300 of a cleaning device such as a vacuum cleaner, and is used to adjust the length of the power cord and retract the power cord so that a cleaning device such as a vacuum cleaner can adapt to power environments at different distances, wherein the host 300 in the figure is only partially shown.

[0025] like Figure 3 As shown, a mounting plate 400 is provided on the side of the first limit plate 102 away from the second limit plate 103, and the cable reel 100 is connected to the host 300 of a cleaning device such as a vacuum cleaner through the mounting plate 400. A fixed shaft 401 is provided on the mounting plate 400, and the cable reel 101, the first limit plate 102 and the second limit plate 103 are all sleeved on the fixed shaft 401. The cable reel 101, the first limit plate 102 and the second limit plate 103 can rotate circumferentially together around the fixed shaft 401, and the first limit plate 103 cooperates with a locking and unlocking mechanism such as a lever. The working principle of the cable reel 100 is the same as the existing technology and will not be repeated here.

[0026] A connecting plate 104 is provided in the middle of the second limiting plate 103 away from the end of the first limiting plate 102, and the connecting plate is fixedly connected to the fixed shaft 401. An electrical connector is provided on the connecting plate 104, and the electrical connector is used to connect the power cord and the wire. A guide groove 105 is provided on the outer side of the end of the connecting plate 104 away from the first limiting plate 102, and the guide groove 105 is used to fix the wire. The second limiting plate 103 can rotate circumferentially relative to the connecting plate 104 and the guide groove 105. The guide groove 105 and the connecting plate 104 are integrally or separately provided. Please refer to Figures 1 to 6 As shown, the guide groove 105 is integrally arranged with the connecting disk 104. Of course, the connecting disk 104 and the guide groove 105 can also be separately arranged. In this case, the position of the connecting disk 104 remains unchanged, and the guide groove 105 can be fixed at other positions of the main unit 300. Regardless of whether the guide groove 105 and the connecting disk 104 are integrally arranged or separately arranged, when the winding drum 101, the first limit disk 102 and the second limit disk 103 rotate circumferentially, the connecting disk 104 and the guide groove 105 are stationary, that is, the connecting disk 104 and the guide groove 105 do not rotate together with the winding drum 101 and the second limit disk 103.

[0027] The wire connected to the motor is fixed in the guide groove 105. Since the guide groove 105 and the connecting disk 104 are fixed and the guide groove 105 is arranged on the outside of the connecting disk 104, when the winding drum 101 and the second limit disk 103 rotate circumferentially, the guide groove 105 can prevent the wire from being wound into the winding drum 101 and the second limit disk 103, so that the wire is not entangled with the power cord and is not separated from the motor, thereby improving the stability of the connection between the wire and the motor.

[0028] The guide groove 105 includes a guide groove bottom wall 106 and a pair of guide groove side walls 107 extending from both sides of the guide groove bottom wall 106. An opening is formed between the pair of guide groove side walls 107 away from one end of the guide groove bottom wall 106. The opening is away from the second limiting plate 103. The guide groove bottom wall 106 is close to the second limiting plate 103. The guide groove bottom wall 106 separates the wire from the second limiting plate 103 and the connecting plate 104, which can reduce the friction between the wire and the second limiting plate 103 and the connecting plate 104.

[0029] One end of the guide groove 105 corresponds to the connecting disk 104, and the projection of the other end of the guide groove 105 on the plane where the second limiting disk 103 is located is located outside the second limiting disk. This arrangement ensures that the part of the wire passing through the other end of the guide groove 105 does not contact the second limiting disk 103, further reducing the friction between the wire and the second limiting disk 103 and the probability of the wire being wound into the winding drum 101 and the second limiting disk 103.

[0030] Please refer to Figures 1 to 7As shown, the guide groove 105 is integrally provided above the connecting plate 104 and extends outward from the middle of the end surface of the connecting plate 104. The extension direction of the guide groove 105 can be set according to the position of the motor relative to the cable reel 100. For example, if the motor is located behind the cable reel 100, the guide groove 105 extends toward the rear of the cable reel 100. If the motor is located in front of the cable reel 100, the guide groove 105 extends toward the front of the cable reel 100 to shorten the length of the wire. Of course, the extension direction of the guide groove 105 can also be set regardless of the position of the motor, and the guide groove 105 does not have to be straight, but can also be curved.

[0031] In this embodiment, the guide groove 105 is integrally protruded from the middle of the connecting disk 104. The length of the guide groove 105 is greater than the radius of the second limiting disk 103, so that one end of the guide groove 105 away from the connecting disk 104 is exposed outside the second limiting disk 103, further preventing friction between the wire and the second limiting disk 103, and at the same time preventing the wire from being wound into the second limiting disk 103 and the winding drum 101.

[0032] When the guide groove 105 and the connecting disk 104 are set separately, there is a certain distance between the guide groove 105 and the connecting disk 104. The guide groove 105 is preferably set parallel to the second limiting disk 103, and one end of the guide groove 105 corresponds to the middle of the connecting disk 104, and the other end of the guide groove 105 is correspondingly located outside the second limiting disk 103.

[0033] A number of protrusions 108 for arranging the wires are provided in the guide groove 105. In this embodiment, the protrusions 108 are protruded from the bottom wall 106 of the guide groove and extend toward the opening. The protrusions 108 are T-shaped, and the wires can be arranged, limited and fixed by the side walls and top of the protrusions 108. Of course, the arrangement of the protrusions 108 is not limited to the above-mentioned one. For example, the protrusions 108 are protruded from the side walls 107 of the guide groove and are rectangular, or in an inverted L-shape, etc.

[0034] An annular conductive member 109 is disposed within the cable reel 101. In this embodiment, the annular conductive members 109 are a pair of coaxially arranged members 109. The annular conductive members 109 are fixed within the cable reel 101, allowing the annular conductive members 109 to rotate circumferentially with the cable reel 101. A first through-hole 110 is provided on the surface of the cable reel 101, through which the end of the power cord away from the plug 200 can pass and extend into the cable reel 101. The end of the power cord away from the plug 200 can pass through the first through-hole 110 to electrically connect to the annular conductive member 109. The annular conductive member 109 is preferably made of conductive copper.

[0035] A method of electrically connecting the power line to a pair of annular conductive members 109: the positive power line is electrically connected to one of the annular conductive members 109, and the negative power line is electrically connected to the other annular conductive member 109. In this embodiment, the power line is welded to the conductive end 116 of the annular conductive member 109.

[0036] The electrical connector includes a pair of elastic contacts 111, and the elastic ends 112 of the elastic contacts 111 extend into the winding reel 101. The elastic ends 112 of the elastic contacts 111 elastically abut against the annular conductive member 109 in a one-to-one correspondence. In this embodiment, the elastic ends 112 of the elastic contacts 111 are a pair. The pair of elastic ends 112 can not only maintain the balance of the elastic contacts 111 and improve the stability of the elastic contacts 111 when in contact with the annular conductive member 109, but also increase the contact area between the elastic contacts 111 and the annular conductive member 109, thereby increasing the conductive current. Of course, the elastic ends 112 of an elastic contact 111 can also be one, or even more than a pair. A pair of elastic ends 112 of one elastic contact piece 111 are always elastically in contact with one of the annular conductive members 109, and a pair of elastic ends 112 of the other elastic contact piece 111 are always elastically in contact with the other annular conductive member 109, that is, one elastic contact piece 111 is electrically connected to one of the annular conductive members 109, and the other elastic contact piece 111 is electrically connected to the other annular conductive member 109, and when the annular conductive member 109 rotates circumferentially with the winding drum 101, the elastic contact piece 111 and the annular conductive member 109 are also electrically connected.

[0037] The elastic contact piece 111 is electrically connected to the wire at one end away from the annular conductive member 109. Specifically, Figure 5 、 6 As shown, a second through hole 113 and a pair of third through holes 114 are provided on the connecting plate 104. The second through hole 113 is connected to the guide groove 105. The pair of third through holes 114 are symmetrically arranged on both sides of the second through hole 113. A pair of elastic contact pieces 111 are respectively correspondingly arranged in the third through holes 114 at one end away from the annular conductive piece 109. A pair of guide groove side walls 107 are respectively provided with fourth through holes 115. After the wire fixed by the guide groove 105 passes through the second through hole 113, the positive wire passes through one of the fourth through holes 115 and returns to its adjacent third through hole 114 and is connected to the elastic contact piece 111 arranged in the third through hole 114. The negative wire passes through the other fourth through hole 115 and returns to its adjacent third through hole 114 and is connected to the elastic contact piece 111 arranged in the third through hole 114. Such a configuration can further organize the wires, making wiring more convenient and effective.

[0038] Of course, the positive power line is electrically connected to the positive lead through the annular conductive member 109 and the elastic contact piece 111 , and the negative power line is electrically connected to the negative lead through the annular conductive member 109 and the elastic contact piece 111 .

[0039] The plug 200 can provide working power to the motor through the annular conductive part 109, the elastic contact 111 and the wire in sequence. Regardless of whether the power cord is stretched or retracted, the wire is fixed by the guide groove 105, and the wire does not rub against the reel, nor will it be wound into the reel, will not be entangled with the power cord, and will not be separated from the motor, thereby ensuring the stability of the connection between the wire and the motor.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A cord reel for a vacuum cleaner, characterized in that: It includes a winding drum and a first limit plate and a second limit plate arranged at both ends of the winding drum. The second limit plate is provided with a connecting plate at one end away from the first limit plate. The connecting plate is provided with an electrical connector for connecting the power cord and the wire. The connecting plate is provided with a guide groove for fixing the wire. The first limit plate, the second limit plate and the winding drum can rotate circumferentially relative to the connecting plate and the guide groove.

2. The cord reel for a vacuum cleaner according to claim 1, wherein: The guide groove and the connecting disk are arranged separately or integrally.

3. The cord reel for a vacuum cleaner according to claim 1, wherein: The guide groove is arranged on the outer side of the connecting plate away from the first limiting plate, one end of the guide groove corresponds to the connecting plate, and the projection of the other end of the guide groove on the plane where the second limiting plate is located is located outside the second limiting plate.

4. The cord reel for a vacuum cleaner according to claim 1, wherein: An opening is provided on the side of the guide groove facing away from the second limiting plate, a side of the guide groove close to the second limiting plate is the guide groove bottom wall, and the opening is arranged opposite to the guide groove bottom wall.

5. The cord reel for a vacuum cleaner according to claim 4, wherein: A plurality of protrusions for arranging the wires are arranged in the guide groove.

6. The cord reel for a vacuum cleaner according to claim 5, wherein: The protrusion is protruding from the bottom wall of the guide groove, and the protrusion is T-shaped.

7. The cord reel for a vacuum cleaner according to claim 1, wherein: An annular conductive member is provided inside the winding drum, and the annular conductive member is used to electrically connect to the power cord. The annular conductive member rotates circumferentially together with the winding drum. The electrical connector includes an elastic contact piece, and the elastic end of the elastic contact piece is always in contact with the annular conductive member. The end of the elastic contact piece away from the annular conductive member is used to electrically connect to the wire.

8. The cord reel for a vacuum cleaner according to claim 7, wherein: The elastic contact piece has a pair of elastic ends.

9. The cord reel for a vacuum cleaner according to claim 7, wherein: The annular conductive member and the elastic contact piece each form a pair, and the annular conductive member and the elastic contact piece abut against each other in a one-to-one correspondence.

10. The cord reel for a vacuum cleaner according to claim 7, wherein: The winding drum is provided with a first through hole for the power cord to pass through and extend into the interior thereof.

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