Conductive telescopic dust collector straight pipe and machining process thereof

Abstract

The invention provides a conductive telescopic dust collector straight pipe and a machining process thereof, and relates to the field of dust collectors. The invention relates to a telescopic pipe which comprises a metal pipe, a telescopic pipe and a lower connector, the lower connector is fixedly connected with the metal pipe, one end of the telescopic pipe stretches out and draws back in the metal pipe, and a sealing ring is fixedly arranged on the inner wall of the lower connector. The sealing structure has the effect of improving the sealing performance.

Description

Technical Field

[0001] The present application relates to the field of vacuum cleaners, and in particular to a conductive telescopic vacuum cleaner straight tube and a processing technology thereof. Background Art

[0002] Vacuum cleaners can be divided into vertical, horizontal and portable types according to their structure; the working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, thereby generating negative air pressure in a sealed shell to absorb dust.

[0003] Handheld vacuum cleaners are easy to use and have a high market penetration rate. Different vacuum cleaners are equipped with different vacuum tubes. Among them, the vacuum tube with telescopic function can be retracted and stored due to its characteristics. It can be extended according to the length when in use and can be retracted to the shortest diameter when not in use. The initial telescopic vacuum tube was a single tube. Later, vacuum cleaners were equipped with various suction heads and brush heads, and began to use a double-tube structure, that is, another tube was added inside the main tube to achieve the separation inside the tube, distinguishing the vacuum line from the power line.

[0004] However, when the telescopic vacuum tube with the double-tube structure is in use, the telescopic intersection in the tube, that is, the telescopic locking position of the telescopic tube, may have poor sealing performance during use. Summary of the invention

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides a conductive telescopic vacuum cleaner straight tube and a processing technology thereof.

[0006] In a first aspect, the present application provides a conductive telescopic vacuum cleaner straight tube, which adopts the following technical solution: A conductive telescopic vacuum cleaner straight pipe comprises: a metal pipe, a telescopic pipe and a lower joint, wherein the lower joint is fixedly connected to the metal pipe, one end of the telescopic pipe is telescoped in the metal pipe, and a sealing ring is fixedly arranged on the inner wall of the lower joint.

[0007] By adopting the above technical solution, the sealing ring can improve the sealing performance between the metal tube and the telescopic tube.

[0008] Optionally, a continuation component is arranged between the lower joint and the sealing ring, and the continuation component includes: a driving part, an adjustment part and an expansion part, the adjustment part is arranged on the lower joint, the driving component is arranged between the adjustment part and the lower joint, and the expansion part is arranged between the sealing ring and the lower joint.

[0009] By adopting the above technical solution, the extended component can make the sealing ring unnecessary to be replaced for a long time, thereby reducing the frequency of replacing the sealing ring and thus reducing costs; and at the same time, the sealing performance can also be continuously guaranteed.

[0010] Optionally, the expansion bag portion includes: an oil inlet pipe and a sealing sleeve, an annular cavity is opened on the lower joint, an annular cavity is opened on the lower joint, and a connecting hole is opened through the inner wall of the annular cavity, a volume cavity is opened on the sealing ring, one end of the oil inlet pipe is connected to the volume cavity, and the other end is arranged in the connecting hole, and the sealing sleeve is fixedly mounted on the oil inlet pipe.

[0011] By adopting the above technical solution, the driving part drives the adjusting part to operate at regular intervals, so that the silicone oil in the ring cavity enters the volume cavity through the oil inlet pipe, so that the sealing ring can expand to increase its own volume and fill the gap caused by the wear of the sealing ring.

[0012] Optionally, the adjustment part includes: an adjustment plate, an adjustment sleeve and an adjustment rod, the adjustment plate is arranged in the annular cavity, and the adjustment sleeve is fixed on the adjustment plate, one end of the adjustment rod is rotatably installed in the annular cavity, and the other end is threadedly connected to the adjustment sleeve, and the driving part is arranged between the adjustment rod and the lower joint.

[0013] By adopting the above technical solution, the driving part drives the adjusting rod to rotate at regular intervals, so that the adjusting plate can rise to press the silicone oil in the annular cavity into the volume cavity through the oil inlet pipe.

[0014] Optionally, the driving part includes: a driving rod, a driving sleeve, a driving gear and a driven gear, one end of the driving rod is rotatably mounted on the lower joint, and the other end passes through the annular cavity and is coaxially fixed with the driving gear, the driven gear is coaxially sleeved on the adjusting rod, and the driving gear is meshed with the driven gear, and the driving sleeve is fixedly sleeved on the driving rod.

[0015] By adopting the above technical solution, after a period of time, the driving rod is rotated to drive the driving gear to drive the driven gear to rotate, so that the adjustment rod starts to rotate.

[0016] Optionally, a tearing assembly is provided on the lower joint, the tearing part and the reset part, the tearing part includes: a push plate and a push rod, a push cavity is opened on the lower joint, and a connecting hole is opened between the push cavity and the annular cavity, a push hole is opened through the inner top wall of the push cavity, the push plate is arranged in the push cavity, and the push rod is fixed on the push plate, and the reset part is arranged between the lower joint and the push plate.

[0017] By adopting the above technical solution, if the sealing ring can no longer be used, the tearing assembly can loosen the connection between the sealing ring and the lower joint, so that the operator will not have to exert too much effort when removing the sealing ring from the lower joint.

[0018] Optionally, the reset part includes: a mesh plate and a reset spring, the mesh plate is fixed in the push cavity, and the reset spring is fixed between the push plate and the mesh plate.

[0019] By adopting the above technical solution, after the push rod completes the pushing, the driving rod is rotated in the opposite direction again. At this time, the silicone oil in the push cavity flows back into the annular cavity, so that the reset spring can pull the push plate downward to complete the reset.

[0020] Optionally, the driving part further includes: a knob, wherein the knob is fixed on the driving rod.

[0021] By adopting the above technical solution, the knob makes it easier for the operator to rotate the drive rod.

[0022] Optionally, the push plate and the adjustment plate are both fixed with rubber sleeves.

[0023] By adopting the above technical solution, the rubber sleeve is used to improve the sealing between the push plate and the inner wall of the push cavity and between the adjustment plate and the inner wall of the annular cavity.

[0024] In a second aspect, the present application provides a processing technology for a conductive telescopic vacuum cleaner straight tube, which adopts the following technical solution: A processing technology for a conductive telescopic vacuum cleaner straight pipe comprises the following steps: S1: Apply release agent to the sponge; S2: Use a sponge to evenly coat the inner wall of the lower joint; S3: Tear off the release paper of the sealing ring; S4: Stick the sealing ring onto the end face of the inner hole of the lower joint.

[0025] By adopting the above technical solution, the sealing ring can be installed quickly.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The sealing ring can improve the sealing between the metal tube and the telescopic tube.

[0027] 2. The extended assembly can make the sealing ring unnecessary to be replaced for a long time, thereby reducing the frequency of replacing the sealing ring and thus reducing costs; at the same time, the sealing performance can also be continuously guaranteed.

[0028] 3. At regular intervals, the drive unit is used to drive the adjustment unit to operate, so that the silicone oil in the ring cavity enters the volume cavity through the oil inlet pipe, so that the sealing ring can expand to increase its own volume and fill the gap caused by the wear of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a structural schematic diagram according to Embodiment 1 of the present application; Figure 2 is along Figure 1 A schematic cross-sectional view taken along the cutting line AA in FIG. Figure 3 is a structural schematic diagram according to Embodiment 2 of the present application; Figure 4 is along Figure 3 A schematic cross-sectional view taken along the cutting line BB in FIG. Figure 5 yes Figure 4 Schematic partial enlarged view of part C.

[0030] In the figure: 1. metal tube; 2. lower joint; 21. annular cavity; 22. connecting hole; 23. push cavity; 24. push hole; 3. telescopic tube; 4. sealing ring; 41. volume cavity; 5. expansion part; 51. oil inlet pipe; 52. sealing sleeve; 6. adjustment part; 61. adjustment plate; 62. adjustment sleeve; 63. adjustment rod; 7. driving part; 71. driving rod; 72. driving sleeve; 73. driving gear; 74. driven gear; 75. knob; 8. tearing part; 81. push plate; 82. push rod; 9. reset part; 91. mesh plate; 92. reset spring; 10. rubber sleeve. DETAILED DESCRIPTION

[0031] The present application provides a conductive telescopic vacuum cleaner straight tube.

[0032] Embodiment 1: See also Figure 1 and Figure 2 A conductive telescopic vacuum cleaner straight tube comprises: a metal tube 1, a telescopic tube 3 and a lower joint 2, wherein the lower joint 2 is fixedly connected to one end of the metal tube 1 and is interconnected; one end of the telescopic tube 3 is telescoped in the metal tube 1.

[0033] See also Figure 1 and Figure 2 A sealing ring 4 is bonded to the inner hole end surface of the lower joint 2, and the sealing ring 4 can improve the sealing between the metal tube 1 and the telescopic tube 3.

[0034] The working principle of the first embodiment is as follows: the sealing ring 4 can improve the sealing performance between the metal tube 1 and the telescopic tube 3 .

[0035] Embodiment 2: See also Figure 3 , Figure 4 and Figure 5 The difference between this embodiment and the first embodiment is that a continuation component is provided between the lower joint 2 and the sealing ring 4. The continuation component can make the sealing ring 4 unnecessary to be replaced for a long time, so as to reduce the frequency of replacing the sealing ring 4 and thus reduce the cost; and at the same time, the sealing performance can also be continuously guaranteed.

[0036] See also Figure 5 The continuation component includes: a driving part 7, an adjusting part 6 and an expansion part 5.

[0037] See also Figure 5 The driving part 7 includes: a driving rod 71, a driving sleeve 72, a driving gear 73 and a driven gear 74. The lower joint 2 is provided with an annular cavity 21 for filling silicone oil, and the sealing ring 4 is provided with a volume cavity 41. One end of the driving rod 71 is rotatably mounted on the lower joint 2, and the other end passes through the annular cavity 21 and is coaxially fixed with the driving gear 73. The driven gear 74 is mounted on the adjustment part 6, and the driving gear 73 is meshed with the driven gear 74. After a period of time, the driving rod 71 is rotated to drive the driving gear 73 to drive the driven gear 74 to rotate, so that the adjustment part 6 starts to operate, so as to drive the expansion part 5 to expand the sealing ring 4, so as to fill the gap caused by the wear of the sealing ring 4 to continue to ensure the sealing performance.

[0038] See also Figure 5 The driving sleeve 72 is fixedly sleeved on the driving rod 71 , and the driving sleeve 72 can improve the sealing between the driving rod 71 and the lower joint 2 .

[0039] See also Figure 5 Furthermore, the driving part 7 also includes: a knob 75, which is fixed to one end of the driving rod 71 away from the driving gear 73, and the knob 75 is convenient for the operator to rotate the driving rod 71.

[0040] See also Figure 5 The adjustment part 6 includes: an adjustment plate 61, an adjustment sleeve 62 and an adjustment rod 63. The adjustment plate 61 is arranged in the annular cavity 21. The adjustment plate 61 is annular and can move up and down in the vertical direction. The adjustment sleeve 62 is fixed on the bottom wall of the adjustment plate 61. One end of the adjustment rod 63 is rotatably mounted on the inner bottom wall of the annular cavity 21, and the other end is threadedly connected in the adjustment sleeve 62; the driven gear 74 is coaxially sleeved on the adjustment rod 63. When the driven gear 74 rotates, the adjustment rod 63 rotates, so that the adjustment plate 61 can rise to drive the expansion part 5 to expand the sealing ring 4.

[0041] See also Figure 5 The expansion bag portion includes: an oil inlet pipe 51 and a sealing sleeve 52. A connecting hole 22 is formed through the inner top wall of the annular cavity 21. One end of the oil inlet pipe 51 is connected to the volume cavity 41, and the other end is arranged in the connecting hole 22. During the rising process of the adjustment plate 61, the silicone oil above the adjustment plate 61 can enter the volume cavity 41 through the oil inlet pipe 51, so that the sealing ring 4 can expand to increase its own volume and fill the gap caused by the wear of the sealing ring 4.

[0042] See also Figure 5Furthermore, a tearing assembly is provided on the lower joint 2. If the sealing ring 4 can no longer be used, the tearing assembly can loosen the connection between the sealing ring 4 and the lower joint 2, so that the operator will not have to exert too much effort when removing the sealing ring 4 from the lower joint 2.

[0043] See also Figure 5 The tearing assembly includes: a tearing portion 8 and a resetting portion 9.

[0044] See also Figure 5 The tearing portion 8 includes: a push plate 81 and a push rod 82. An annular push cavity 23 is provided on the lower joint 2, and a connecting hole is provided between the push cavity 23 and the annular cavity 21, that is, the silicone oil in the annular cavity 21 and the silicone oil in the push cavity 23 are connected to each other. The inner top wall of the pushing cavity 23 is penetrated with a pushing hole 24 for the pushing rod 82 to pass through; the pushing plate 81 is arranged in the pushing cavity 23, the pushing plate 81 is annular and can move up and down in the vertical direction; the pushing rod 82 is fixed on the top wall of the pushing plate 81, and when the sealing ring 4 needs to be replaced, the driving rod 71 is rotated in the opposite direction to drive the adjustment plate 61 to move downward; in this process, the adjustment plate 61 presses the silicone oil in the annular cavity 21 into the pushing cavity 23, so that the pushing plate 81 drives the pushing rod 82 to rise until the pushing rod 82 passes through the pushing hole 24 to push the sealing ring 4 until the connection between the sealing ring 4 and the lower joint 2 is loosened, and the driving rod 71 can be stopped from rotating.

[0045] See also Figure 5 Furthermore, a rubber sleeve 10 is fixedly sleeved on the peripheral walls of the push plate 81 and the adjustment plate 61, and the rubber sleeve 10 is used to improve the sealing between the push plate 81 and the inner wall of the push cavity 23 and between the adjustment plate 61 and the inner wall of the annular cavity 21.

[0046] See also Figure 5 The reset part 9 includes: a mesh plate 91 and a reset spring 92. The mesh plate 91 is fixed in the push cavity 23 and is located below the push plate 81. The mesh plate 91 is not easy to affect the circulation of silicone oil; the reset spring 92 is fixed between the push plate 81 and the mesh plate 91. After the push rod 82 completes the push, it rotates the driving rod 71 in the opposite direction again. At this time, the silicone oil in the push cavity 23 flows back into the annular cavity 21, so that the reset spring 92 can pull the push plate 81 downward to complete the reset.

[0047] The working principle of the second embodiment is as follows: during the rising process of the adjustment plate 61, the silicone oil above the adjustment plate 61 can enter the volume chamber 41 through the oil inlet pipe 51, so that the sealing ring 4 can expand to increase its own volume and fill the gap caused by the wear of the sealing ring 4.

[0048] The present application also provides a processing technology for a conductive telescopic vacuum cleaner straight tube.

[0049] A processing technology for a conductive telescopic vacuum cleaner straight pipe comprises the following steps: S1: Apply release agent to the sponge; S2: Use a sponge to evenly coat the inner wall of the lower joint 2; S3: tear off the release paper of the sealing ring 4; S4: Stick the sealing ring 4 onto the end surface of the inner hole of the lower joint 2.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A conductive telescopic vacuum cleaner straight tube, characterized in that: include: A metal tube (1), a telescopic tube (3) and a lower joint (2), wherein the lower joint (2) is fixedly connected to the metal tube (1), one end of the telescopic tube (3) is telescoped in the metal tube (1), and a sealing ring (4) is fixedly provided on the inner wall of the lower joint (2).

2. The conductive telescopic vacuum cleaner straight pipe according to claim 1, characterized in that: A continuation component is arranged between the lower joint (2) and the sealing ring (4), and the continuation component comprises: a driving part (7), an adjusting part (6) and an expansion part (5), wherein the adjusting part (6) is arranged on the lower joint (2), the driving component is arranged between the adjusting part (6) and the lower joint (2), and the expansion part (5) is arranged between the sealing ring (4) and the lower joint (2).

3. The conductive telescopic vacuum cleaner straight pipe according to claim 2, characterized in that: The expansion bag portion comprises: an oil inlet pipe (51) and a sealing sleeve (52); an annular cavity (21) is provided on the lower joint (2); an annular cavity (21) is provided on the lower joint (2); a connecting hole (22) is provided through the inner wall of the annular cavity (21); a volume cavity (41) is provided on the sealing ring (4); one end of the oil inlet pipe (51) is communicated with the volume cavity (41) and the other end is arranged in the connecting hole (22); the sealing sleeve (52) is fixedly sleeved on the oil inlet pipe (51).

4. The conductive telescopic vacuum cleaner straight pipe according to claim 3, characterized in that: The adjustment portion (6) comprises: an adjustment plate (61), an adjustment sleeve (62) and an adjustment rod (63); the adjustment plate (61) is arranged in the annular cavity (21), and the adjustment sleeve (62) is fixed on the adjustment plate (61); one end of the adjustment rod (63) is rotatably mounted in the annular cavity (21), and the other end is threadedly connected in the adjustment sleeve (62); and the driving portion (7) is arranged between the adjustment rod (63) and the lower joint (2).

5. The conductive telescopic vacuum cleaner straight pipe according to claim 4, characterized in that: The driving part (7) comprises: a driving rod (71), a driving sleeve (72), a driving gear (73) and a driven gear (74); one end of the driving rod (71) is rotatably mounted on the lower joint (2), and the other end thereof passes through the annular cavity (21) and is coaxially fixed with the driving gear (73); the driven gear (74) is coaxially sleeved on the adjusting rod (63), and the driving gear (73) is meshed with the driven gear (74); and the driving sleeve (72) is fixedly sleeved on the driving rod (71).

6. The conductive telescopic vacuum cleaner straight pipe according to claim 4, characterized in that: The lower joint (2) is provided with a tearing assembly, a tearing part (8) and a reset part (9), the tearing part (8) comprising: a push plate (81) and a push rod (82), the lower joint (2) is provided with a push cavity (23), and a connecting hole is provided between the push cavity (23) and the annular cavity (21), a push hole (24) is provided through the inner top wall of the push cavity (23), the push plate (81) is provided in the push cavity (23), and the push rod (82) is fixed on the push plate (81), and the reset part (9) is provided between the lower joint (2) and the push plate (81).

7. The conductive telescopic vacuum cleaner straight pipe according to claim 6, characterized in that: The reset portion (9) comprises: a mesh plate (91) and a reset spring (92); the mesh plate (91) is fixed in the push cavity (23); and the reset spring (92) is fixed between the push plate (81) and the mesh plate (91).

8. The conductive telescopic vacuum cleaner straight pipe according to claim 5, characterized in that: The driving part (7) further comprises: a knob (75), wherein the knob (75) is fixed on the driving rod (71).

9. The conductive telescopic vacuum cleaner straight pipe according to claim 7, characterized in that: The push plate (81) and the adjustment plate (61) are both fixedly sleeved with a rubber sleeve (10).

10. The processing technology of the conductive telescopic vacuum cleaner straight pipe according to claim 1, characterized in that: The following steps are involved: S1: Apply release agent to the sponge; S2: Use a sponge to evenly coat the inner wall of the lower joint (2); S3: tear off the release paper of the sealing ring (4); S4: Attach the sealing ring (4) to the end surface of the inner hole of the lower joint (2).

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