A two-way conductive telescopic tube for a vacuum cleaner

Abstract

The present invention discloses a two-way conductive telescopic tube for a vacuum cleaner, which comprises a telescopic rod. The telescopic rod includes an intermediate connecting sleeve. A lower end of the intermediate connecting sleeve is fixedly connected to an outer tube, an upper end of the intermediate connecting sleeve is connected to an inner tube, an upper end of the inner tube is connected to an upper connecting head, and a lower end of the outer tube is connected to a lower connecting head. A pin in the upper connecting head is electrically connected to an upper end of a conductive element through a wire, and a lower end of the conductive element is electrically connected to a jack socket of the lower connecting head through a wire, so as to realize the electrical connection between the pin and the jack socket. The structure is simple and the construction is clear and easy to understand. It can not only realize the telescopic movement between the inner tube and the outer tube, but also ensure the uninterrupted conductive line, which is better than the existing sliding contact conductive mode on the market. There is no wear caused by the contact sliding between the conductive parts, thus improving the service life; it solves the problem of current breakpoints caused by contact sliding, is convenient to use, simple to operate, and has a long service life, and is worthy of promotion.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and particularly to a two-way conductive telescopic tube for a vacuum cleaner. Background Art

[0002] Vacuum cleaners can be classified into vertical, horizontal and portable types according to their structures. The working principle of a vacuum cleaner is that an electric motor drives the blades to rotate at high speed, generating a negative air pressure in a sealed housing to suck up dust debris. In the conductive telescopic rod of the vacuum cleaner in the present invention, the expansion and contraction of a conductive metal spring or a spiral wire is used to achieve both telescopic function and uninterrupted conductive circuit. Compared with the existing sliding contact conductive method in the market, there is no wear caused by the sliding contact between conductive parts, which improves the service life. At the same time, the problem of current breakpoints caused by contact sliding is solved. Summary of the Invention

[0003] The purpose of the present invention is to provide a two-way conductive telescopic tube for a vacuum cleaner to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A two-way conductive telescopic tube for a vacuum cleaner includes a telescopic rod. The telescopic rod includes an intermediate connecting sleeve. A lower end of the intermediate connecting sleeve is fixedly connected with an outer tube in a sleeved manner. An upper end of the intermediate connecting sleeve is connected with an inner tube. An upper end of the inner tube is connected with an upper connecting head. A lower end of the outer tube is connected with a lower connecting head.

[0006] Preferably, a pin is arranged in the upper connecting head. A wire tube is arranged in the inner tube. A wire for electrically connecting with the pin is arranged in the wire tube. The wire in the upper connecting head is fixedly connected through a compression bolt.

[0007] Preferably, a lower end of the inner tube passes through the intermediate connecting sleeve and extends into the outer tube. The outer tube is fixedly connected with the intermediate connecting sleeve.

[0008] Preferably, a guiding tube is integrally arranged on a side wall of the outer tube. Two guide rods are arranged in the guiding tube. A bottom of the guide rods is fixed on an inner end face of the lower connecting head. A conductive element is sleeved on an outer surface of the guide rods. A lower end of the wire tube is fixedly connected with a socket head. The socket head is sleeved on the outer surface of the guide rods in a vertically sliding manner. A bottom end of the conductive element abuts against the inner end face of the lower connecting head. An upper end of the conductive element abuts against a lower end face of the socket head. The wire passes through a central hole of the socket head and is electrically connected with the upper end of the corresponding conductive element respectively.

[0009] Preferably, a socket seat is arranged in the lower connecting head. The socket seats on the left and right sides are electrically connected with the lower ends of the corresponding conductive elements through wires respectively.

[0010] Preferably, a rack is provided on the outer surface of the inner tube. A push button sleeve is slidably connected to the outer surface of the intermediate connecting sleeve. A locking block is clamped in the middle of the push button sleeve. Spring grooves are formed on the upper and lower end surfaces of the locking block. Two spring columns are respectively extended from the outer tube corresponding to the two spring grooves. A return spring is installed in the spring groove, and the other end of the return spring is sleeved on the corresponding spring column. One end of the locking block away from the push button sleeve is trapezoidal.

[0011] Preferably, a jump pin groove is provided on the side wall of the intermediate connecting sleeve. A jump pin is placed in the jump pin groove. One side of the locking block away from the push button sleeve is in contact with the jump pin. The jump pin is engaged with a plurality of tooth openings distributed on the rack. Anti-slip lines are provided on the outer surface of the push button sleeve.

[0012] Preferably, a sealing ring is fixedly provided at the lower end of the inner tube, and the sealing ring is slidably inserted into the inner wall of the outer tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is simple and easy to understand. The telescopic rod includes an inner tube, an outer tube and an intermediate connecting sleeve. The outer tube is sleeved on the outer surface of the inner tube. An insertion pin is provided in the upper connecting head connected to the upper end of the inner tube for electrical connection. A jack socket is provided in the lower connecting head connected to the lower end of the outer tube for electrical connection. The insertion pin is electrically connected to the upper end of the conductive element through a wire. The sleeve slides up and down and is sleeved on the outer surface of the guide rod. The lower end of the conductive element is electrically connected to the jack socket through a wire, realizing the electrical conduction between the insertion pin and the jack socket. The conductive element can be a conductive metal spring or a spiral wire. With such a structural arrangement, not only can the telescopic movement between the inner tube and the outer tube be realized, but also the conductive line can be ensured to be uninterrupted, which is better than the existing sliding contact conductive method on the market. There is no wear caused by the contact sliding between the conductive parts, improving the service life; solving the problem of current breakpoints caused by contact sliding, being convenient to use, simple to operate, having a long service life, and being worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of a two-way conductive telescopic tube for a vacuum cleaner;

[0015] Figure 2 It is a front view cross-sectional structural schematic diagram of a two-way conductive telescopic tube for a vacuum cleaner;

[0016] Figure 3 It is a right view cross-sectional structural schematic diagram of a two-way conductive telescopic tube for a vacuum cleaner;

[0017] Figure 4 It is an enlarged structural schematic diagram at A of a two-way conductive telescopic tube for a vacuum cleaner;

[0018] Figure 5 It is an enlarged structural schematic diagram at B of a two-way conductive telescopic tube for a vacuum cleaner;

[0019] Figure 6 It is a schematic enlarged view of the C part of a two-way conductive telescopic tube for a vacuum cleaner;

[0020] Figure 7 It is a schematic enlarged view of the D part of a two-way conductive telescopic tube for a vacuum cleaner;

[0021] Figure 8 It is a schematic enlarged view of the installation of a locking block of a two-way conductive telescopic tube for a vacuum cleaner.

[0022] In the figure: 1 - lower connector, 2 - outer tube, 3 - intermediate connecting sleeve, 4 - inner tube, 5 - upper connector, 6 - wire tube, 7 - pin, 8 - wire, 9 - compression bolt, 10 - socket, 11 - guide rod, 12 - conductive element, 13 - jack socket, 14 - rack, 15 - push button sleeve, 16 - locking block, 17 - jumper pin, 18 - sealing ring, 19 - telescopic rod, 20 - tooth opening, 21 - return spring, 22 - spring groove, 23 - spring post, 24 - guide tube. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 8, the present invention provides a technical solution: a two-way conductive telescopic tube for a vacuum cleaner, including a telescopic rod 19. The telescopic rod 19 includes an intermediate connecting sleeve 3. A lower end of the intermediate connecting sleeve 3 is fixedly connected in a sleeved manner with an outer tube 2. An upper end of the intermediate connecting sleeve 3 is connected with an inner tube 4. An upper end of the inner tube 4 is connected with an upper connecting head 5. A lower end of the outer tube 2 is connected with a lower connecting head 1. A pin 7 is arranged in the upper connecting head 5. A wire tube 6 is arranged in the inner tube 4. A wire 8 for electrically connecting with the pin 7 is arranged in the wire tube 6. The wire 8 in the upper connecting head 5 is fixedly connected through a compression bolt 9. A lower end of the inner tube 4 passes through the intermediate connecting sleeve 3 and extends into the outer tube 2. The outer tube 2 is fixedly connected with the intermediate connecting sleeve 3. A guide tube 24 is integrally arranged on a side wall of the outer tube 6. Two guide rods 11 are arranged in the guide tube 24. A bottom of the guide rods 11 is fixed on an inner end face of the lower connecting head 1. A conductive element 12 is sleeved on an outer surface of the guide rods 11. A socket 10 is fixedly connected to a lower end of the wire tube 6. The socket 10 is sleeved on the outer surface of the guide rods 11 in a vertically sliding manner. A bottom end of the conductive element 12 abuts against the inner end face of the lower connecting head 1, and an upper end of the conductive element 12 abuts against a lower end face of the socket 10. The wire 8 passes through a central hole of the socket 10 and is electrically connected to the upper end of the corresponding conductive element 12 respectively. A socket base 13 is arranged in the lower connecting head 1. The socket bases 13 on the left and right sides are electrically connected to the lower ends of the corresponding conductive elements 12 through wires respectively. A rack 14 is arranged on an outer surface of the inner tube 4. A push button sleeve 15 is slidably connected to an outer surface of the intermediate connecting sleeve 3. A locking block 16 is clamped in the middle of the push button sleeve 15. Spring grooves 22 are formed on both an upper end face and a lower end face of the locking block 16. The outer tube 2 extends two spring posts 23 respectively corresponding to the two spring grooves 22. A return spring 21 is embedded in the spring groove 22, and the other end of the return spring 21 is sleeved on the corresponding spring post 23. One end of the locking block 16 away from the push button sleeve 15 is trapezoidal. A jump pin groove is arranged on a side wall of the intermediate connecting sleeve 3, and a jump pin 17 is placed in the jump pin groove. One side of the locking block 16 away from the push button sleeve 15 abuts against the jump pin 17. The jump pin 17 is engaged and clamped with a plurality of tooth openings 20 distributed on the rack 14. An anti-slip pattern is arranged on an outer surface of the push button sleeve 15. A sealing ring 18 is fixedly arranged at a lower end of the inner tube 4, and the sealing ring 18 is slidably inserted into an inner wall of the outer tube 2.

[0025] The telescopic rod 19 in the present invention includes an inner tube 4, an outer tube 2 and an intermediate connecting sleeve 3. The outer tube 2 is sleeved on the outer surface of the inner tube 4. An insertion pin 7 is arranged in the upper connecting head 5 connected to the upper end of the inner tube 4 for electrical connection. A jack socket 13 is arranged in the lower connecting head 1 connected to the lower end of the outer tube 2 for electrical connection. The insertion pin 7 is electrically connected to the upper end of the conductive element 12 through a wire. The sleeve head 10 slides up and down on the outer surface of the guide rod 11. The lower end of the conductive element 12 is electrically connected to the jack socket 13 through a wire, realizing the electrical conduction between the insertion pin 7 and the jack socket 13. With such a structural arrangement, not only can the telescopic movement between the inner tube 4 and the outer tube 2 be realized, but also the conductive circuit can be ensured to be uninterrupted, which is better than the existing sliding contact conductive method on the market. There is no wear caused by the contact sliding between conductive parts, improving the service life; and the problem of current breakpoints caused by contact sliding is solved.

[0026] Obviously, the conductive element 12 in this embodiment can be a conductive metal spring or a spiral wire.

[0027] When the inner tube 4 extends into the outer tube 2, at this time the sleeve head 10 will move along the guide rod 11. If the conductive element 12 is a conductive metal spring, the conductive element 12 will be compressed. When one of the tooth openings 20 reaches the position of the jump pin 17, the jump pin 17 will extend into the tooth opening 20 and engage with the rack 14, thereby limiting the position of the inner tube 4. At this time, the inner tube 4 remains fixed in the outer tube 2.

[0028] When the push button sleeve 15 is pushed by hand, the locking block 16 moves along with the push button sleeve 15. When the inclined surface of the locking block 16 moves to the jump pin 17, at this time part of the jump pin 17 disengages from the tooth opening 20 and is placed in the jump pin groove on the side wall of the intermediate connecting sleeve (3). At this time, if the conductive element 12 is a conductive metal spring, the compressed conductive element 12 will automatically push out the sleeve head 10 and the connected inner tube 4. Then the push button sleeve 15 is released, and the return spring 21 arranged on the upper and lower sides of the locking block 16 pushes the locking block 16 back to its original position, and at this time the jump pin is pushed back into the tooth opening 20, realizing the limitation of the inner tube 4 again, thus realizing the free telescoping of the inner tube 4 in the outer tube 2. During the free telescoping of the inner tube 4 in the outer tube 2, the sleeve head 10 and the jack socket 13 are always electrically conductive through the conductive element 12.

[0029] If the conductive element 12 is a spiral wire, both the extension and contraction of the inner tube 4 need to be manually operated.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-way conductive telescopic tube for a vacuum cleaner, comprising a telescopic rod (19), Characterized in that: The telescopic rod (19) includes an intermediate connecting sleeve (3). The lower end of the intermediate connecting sleeve (3) is fixedly connected with an outer tube (2) in a sleeved manner. The upper end of the intermediate connecting sleeve (3) is connected with an inner tube (4). The upper end of the inner tube (4) is connected with an upper connector (5). The lower end of the outer tube (2) is connected with a lower connector (1); An insertion pin (7) is arranged in the upper connector (5). A wire tube (6) is arranged in the inner tube (4). A wire (8) for electrically connecting with the insertion pin (7) is arranged in the wire tube (6). The wire (8) in the upper connector (5) is fixedly connected through a compression bolt (9); The lower end of the inner tube (4) passes through the intermediate connecting sleeve (3) and extends into the outer tube (2). The outer tube (2) is fixedly connected with the intermediate connecting sleeve (3); A guiding tube (24) is integrally arranged on the side wall of the outer tube (2). Two guide rods (11) are arranged in the guiding tube (24). The bottom of the guide rods (11) is fixed on the inner end face of the lower connector (1). A conductive element (12) is sleeved on the outer surface of the guide rods (11). The lower end of the wire tube (6) is fixedly connected with a socket head (10). The socket head (10) is slidably sleeved on the outer surface of the guide rods (11). The bottom end of the conductive element (12) abuts against the inner end face of the lower connector (1). The upper end of the conductive element (12) abuts against the lower end face of the socket head (10). The wire (8) passes through the central hole of the socket head (10) and is electrically connected with the upper ends of the corresponding conductive elements (12) respectively; A socket base (13) is arranged in the lower connector (1). The socket bases (13) on the left and right sides are electrically connected with the lower ends of the corresponding conductive elements (12) through wires respectively; Wherein, the conductive element (12) is a conductive metal spring.

2. A two-way conductive telescopic tube for a vacuum cleaner according to claim 1, Characterized in that: A rack (14) is arranged on the outer surface of the inner tube (4). A push button sleeve (15) is slidably connected to the outer surface of the intermediate connecting sleeve (3). A locking block (16) is clamped in the middle of the push button sleeve (15). Spring grooves (22) are arranged on the upper end face and the lower end face of the locking block (16). Two spring columns (23) are respectively arranged on the outer tube (2) corresponding to the two spring grooves (22) in an extended manner. A return spring (21) is embedded in the spring groove (22). The other end of the return spring (21) is sleeved on the corresponding spring column (23). One end of the locking block (16) away from the push button sleeve (15) is trapezoidally arranged.

3. A two-way conductive telescopic tube for a vacuum cleaner according to claim 2, Characterized in that: A jump pin groove is arranged on the side wall of the intermediate connecting sleeve (3). A jump pin (17) is placed in the jump pin groove. One side of the locking block (16) away from the push button sleeve (15) is in contact connection with the jump pin (17). The jump pin (17) is in fit connection with a plurality of tooth openings (20) distributed on the rack (14). Anti-slip patterns are arranged on the outer surface of the push button sleeve (15).

4. A two-way conductive telescopic tube for a vacuum cleaner according to claim 3, characterized in that: a sealing ring (18) is fixedly arranged at the lower end of the inner tube (4), and the sealing ring (18) is slidably inserted into the inner wall of the outer tube (2).

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