Backpack type dust collector and power line anti-falling protection assembly of backpack type dust collector

Abstract

The utility model discloses a power line anti-drop protection assembly of a backpack dust collector, which comprises a connecting seat which is integrally and fixedly arranged on a dust collector barrel body and is provided with an electric connector, an electric plug which can be connected with the electric connector in a plugging way and is provided with a power line, a stop sleeve which is spirally connected with the connecting seat, and a lining piece which is matched and combined with the stop sleeve, the end part of the stop sleeve is provided with a movable sleeve hole through which the power line can freely and movably pass, the inner side of the end part of the stop sleeve is provided with an anti-drop shoulder for preventing the electric plug from moving along the axial direction of the stop sleeve to be pulled off, the stop sleeve is provided with a side slot which is larger than the diameter of the power line, and the side slot extends to the movable sleeve hole from the bottom opening along the side wall of the stop sleeve; the lining piece is provided with a limiting check block arranged at the side seam in a matched mode. The lining piece is arranged on the stop sleeve, so that the stop sleeve cannot extrude the space of the side seam to be compressed and deformed, the strength of the stop sleeve and the strength of the connecting structure are greatly improved, and the connecting structure of the stop sleeve is very stable and firm. The utility model further discloses a backpack type dust collector.

Description

Technical Field

[0001] The utility model relates to a backpack vacuum cleaner, in particular to a power cord anti-drop protection component of the backpack vacuum cleaner. Background Art

[0002] There are two ways to set up the power cord of existing vacuum cleaners. One is to directly pass through the vacuum cleaner barrel and connect to the circuit board to form an integrated through-type power cord. A fixing device is set inside to prevent the power cord from being pulled out, but it is still easy to be pulled off when the pulling force is too large, causing leakage or tearing, and the power cord cannot be directly replaced simply. The other is to set a connection socket for power plug-in connection. The plug-in structure is easy to loosen under a large pulling force, and the fulcrum of the force acting on the electric plug during the shaking process is at the root of the electric plug, which is more likely to loosen.

[0003] The general auxiliary fixing sleeve joints are also easy to loosen. For example, although the sleeve joints with insufficient structural stability and strength can assist in fixation to a certain extent, there is still the problem that the structure is not firm and reliable enough. Frequent shaking and pulling force exceeding a certain strength will inevitably pull it off. Summary of the invention

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a detachable power cord anti-detachment protection component for a backpack vacuum cleaner that can be prevented from being pulled off and has enhanced structural stability; a backpack vacuum cleaner comprising the above-mentioned power cord connection component is also provided.

[0005] In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a power cord anti-detachment protection component of a backpack vacuum cleaner, which includes a connecting seat integrally fixedly installed on the vacuum cleaner barrel and provided with an electrical connector, an electric plug with a power cord that can be plugged and unplugged with the electrical connector, a stop sleeve spirally connected to the connecting seat, and an inner lining member matched with the stop sleeve, the end of the stop sleeve is provided with a loop hole through which the power cord can move freely, the inner side of the end of the stop sleeve is provided with an anti-detachment shoulder for preventing the electric plug from being pulled off due to the axial movement of the stop sleeve, the stop sleeve is provided with a side slit larger than the diameter of the power cord, the side slit extends along the side wall of the stop sleeve from the bottom opening to the loop hole; the inner lining member has a limit stop block adapted to be arranged at the side slit.

[0006] As an improvement on the technical solution of the power cord anti-drop protection component of the backpack vacuum cleaner of the utility model, the outer side surface of the lining is located within the edge of the side slit, and the width of the side slit is greater than 1.2 times the diameter of the power cord.

[0007] As an improvement on the technical solution of the power cord anti-detachment protection component of the backpack vacuum cleaner of the utility model, the lining member is provided with an arc-shaped support leg arranged to fit the inner side surface of the stop sleeve, and the stop sleeve is provided with a blocking boss which blocks the front end of the arc-shaped support leg to prevent the lining member and its limit block from sinking inward.

[0008] As an improvement on the technical solution of the power cord anti-drop protection component of the backpack vacuum cleaner of the utility model, the lining member is provided with a semicircular ring-shaped blocking sheath located at the bottom of the anti-drop shoulder for preventing excessive deflection of the power cord.

[0009] As an improvement on the technical solution of the power cord anti-drop protection component of the backpack vacuum cleaner of the utility model, a limiting block for supporting and blocking the end of the protective sleeve is provided in the stop sleeve.

[0010] As an improvement to the technical solution of the power cord anti-drop protection component of the backpack vacuum cleaner of the utility model, the internal space width of the stop sleeve is greater than the maximum lateral span of the corresponding height position of the electric plug.

[0011] As an improvement on the technical solution of the power cord anti-detachment protection component of the backpack vacuum cleaner of the utility model, the connecting seat is provided with a recessed groove for accommodating the electrical connector, the recessed groove is circular and has an internal thread, and the stop sleeve is provided with an external thread matching the internal thread.

[0012] In addition, the technical solution of the overall equipment adopted by the utility model is: a backpack vacuum cleaner, which includes a vacuum cleaner barrel, and the vacuum cleaner barrel is provided with a power cord anti-detachment protection component of the backpack vacuum cleaner described in any one of the aforementioned technical solutions.

[0013] The beneficial effects of the utility model are as follows: the connection seat is fixedly installed on the vacuum cleaner barrel, and when the electric plug is plugged into the electric connector, the power cord leading out of the vacuum cleaner is formed. The stop sleeve is spirally connected to the connection seat, and an inner lining is arranged on the stop sleeve so that it cannot squeeze the space of the side slit and compress and deform, which greatly improves the self-structural strength of the stop sleeve and the strength of the connection structure, thereby making the connection structure very stable and firm. The stop sleeve is usually unable to be pulled off along the axial direction, and the stop sleeve has a shoulder to stop the electric plug inside it, thereby preventing the power cord passing through the loop hole from being pulled off by unexpected external force during operation. The fulcrum of the external tension shaking is transferred from the root of the electric plug to the end of the stop sleeve, and the fulcrum of the external tension is transferred from the docking position of the electric plug and the electric connector to the docking position between the stop sleeve and the connection seat, thereby making the plug-in structure between the electric plug and the electric connector more stable and firm, and the power transmission more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a three-dimensional structural schematic diagram of a backpack vacuum cleaner (with a power cord anti-drop protection component of the backpack vacuum cleaner) of the present utility model.

[0015] Figure 2 for Figure 1 The rear side stereoscopic structure schematic diagram of the backpack vacuum cleaner (without the stop sleeve removed) is shown.

[0016] Figure 3 for Figure 2 The right side stereoscopic structural schematic diagram of the backpack vacuum cleaner shown.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the power cord anti-drop protection component.

[0018] Figure 5 A schematic diagram of the three-dimensional structure of the stop sleeve.

[0019] Figure 6 It is a schematic diagram of the first three-dimensional structure of the lining member.

[0020] Figure 7 It is a second three-dimensional structural schematic diagram of the lining member. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 to Figure 7 As shown, the utility model is a power cord anti-detachment protection component for a backpack vacuum cleaner, which includes a connecting seat 12 which is integrally fixedly installed on the vacuum cleaner barrel 11 and is provided with an electric connector, an electric plug 13 with a power cord which can be plugged and unplugged with the electric connector, a stop sleeve 21 which is spirally connected to the connecting seat 12, and an inner lining member 31 which is combined with the stop sleeve, the end of the stop sleeve 21 is provided with a loop hole 22 for the power cord to freely move through, and the inner side of the end of the stop sleeve 21 is provided with an anti-detachment shoulder 23 for preventing the electric plug from moving along the axial direction of the stop sleeve 21 and being pulled off. The connecting base is fixedly installed on the vacuum cleaner barrel 11. When the electric plug 13 is plugged into the electrical connector, it constitutes a power cord leading out of the vacuum cleaner. The stop sleeve 21 is spirally connected to the connecting base 12 to form a very stable and firm connection structure. The stop sleeve 21 is usually unable to be pulled off along the axial direction. The stop sleeve 21 has a stop shoulder 23 to stop the electric plug inside it, thereby preventing the power cord passing through the loop hole 22 from being pulled off by unexpected external force during operation.

[0023] The stop sleeve 21 is provided with a side slit 26 larger than the diameter of the power cord, and the side slit 26 extends from the bottom opening to the loop hole 22 along the side wall of the stop sleeve 21. The lining member 31 has a limit stopper 32 adapted to be arranged at the side slit 26. Since the side slit 26 opens the side of the stop sleeve 21 from top to bottom to form an opening, the cross-section of the entire stop sleeve 21 at each height position is C-shaped, and its structural strength is reduced, and it is easy to deform under stress. Deformation may cause the root threaded connection to be easy to loosen, that is, the root threaded portion of the stop sleeve 21 is squeezed and contracted, so that the internal and external threads are disengaged, resulting in slippage between the connecting components. The lining member 31 is arranged so that its limit stopper 32 is located in the side slit 26, which can prevent the side slit 26 of the stop sleeve 21 from narrowing, thereby preventing the root of the stop sleeve 21 from shrinking and deforming, and preventing the stop sleeve 21 from slipping and separating from the connecting seat. When there is a limit stopper 32 at the side slit 26, the stop sleeve 21 can be firmly gripped to perform the screwing and assembly operation without worrying about the root thread being squeezed and misplaced, so that the installation and disassembly process does not need to be cautious. Furthermore, when the lining 31 assists in increasing the structural strength of the stop sleeve 21, the thickness of the stop sleeve 21 can be appropriately thinned to save materials and reduce weight. At the same time, the side slit 26 can be opened to a sufficiently large width so that the power cord can be easily and conveniently inserted or removed from the side slit 26, while the loop hole 22 is only for the power cord to pass through, and the inner side of the loop hole 22 can limit the tail end of the electric plug, and the stop sleeve 21 is screwed and installed on the connection seat with the electric plug plugged in to achieve the limit blocking of the electric plug. The power cord can be replaced alone without replacing the intact stop sleeve 21, and vice versa.

[0024] The stop sleeve 21 is provided to lock the electric plug 13 so that the power cord connection can be firmly and stably connected, and the plug-in relationship between the electric plug 13 and the electric connector will not be pulled off during operation due to the large pulling force generated by the long power cord. This structure allows the fulcrum of the shaking to be transferred outward from the root of the electric plug 13 to the end of the stop sleeve 21 when the power cord is shaken by external force during use. The shaking part is the soft power cord instead of the hard root of the electric plug, so that the shaking effect can be buffered and the impact on the power cord, its electric plug 13 and the connector 12 can be reduced. The fulcrum of the external pulling force is transferred from the docking position of the electric plug and the electric connector to the docking position between the stop sleeve and the connector, thereby making the plug-in structure between the electric plug 13 and the electric connector more stable and firm, and the power transmission more stable and reliable.

[0025] Further, such as Figures 4 to 7As shown, the outer side of the lining member 31 is located within the edge of the side slit 26, so that the stop sleeve 21 will not hurt the hand when held, and the concave part makes the rotation process more non-slip. The width of the side slit 26 is greater than 1.2 times the diameter of the power cord. When the lining member 31 assists in supporting the two sides of the side slit 26, the side slit 26 can be opened larger to facilitate the insertion of the power cord from the side.

[0026] The inner lining 31 is provided with an arc-shaped support leg 33 which is arranged on the inner side of the stop sleeve 21, and the arc-shaped support leg 33 is arranged in a free position in the stop sleeve 21, and the stop sleeve 21 is provided with a blocking boss 29 which blocks the front end of the arc-shaped support leg 33 to prevent the inner lining 31 and its limit stopper from sinking inward, so that after the inner lining 31 is inserted from the inside along the side slit 26, the blocking boss 29 restricts the arc-shaped support leg 33 so that the entire inner lining 31 is against the side of the stop sleeve 21 where the side slit 26 is arranged, so that the inner lining 31 can be inserted into the side slit 26 of the stop sleeve 21. The limit stopper 32 is pressed against 26 side slits.

[0027] Furthermore, the lining member 31 is provided with a semicircular ring-shaped blocking sheath 36 located at the bottom of the anti-slip shoulder 23 for preventing the power cord from excessively deflecting, so as to center the tail of the electric plug and prevent the power cord from deflecting toward the side slit 26. The blocking sheath 36 and the arc-shaped support legs 33 are respectively arranged at different heights on the inner side of the stop sleeve 21, and are respectively placed near the two ends of the stop sleeve 21, so that the lining member 31 can stay at the side slit 26 with balanced force, and one end of the lining member 31 will not deflect outward. It plays a role in ensuring the balance and stability of the installation structure of the lining member 31. Among them, the stop sleeve 21 is provided with a limit block 25 that supports the end of the blocking sheath 36, and supports and fixes the position of the blocking sheath 36, so that the lining member 31 is stably installed in the stop sleeve 21, and the lining member 31 is prevented from deflecting or bending inward.

[0028] The width of the inner space of the stop sleeve 21 is greater than the maximum transverse span of the corresponding height position of the electric plug 13, so that the stop sleeve 21 can have enough space to accommodate the electric plug 13 and smoothly screw to the connection socket. The longitudinal depth of the inner cavity of the stop sleeve 21 can be less than the longitudinal length of the electric plug 13. As long as some of the multiple threads of the stop sleeve 21 are spirally connected with the connection socket, a stable connection can be achieved, thereby preventing the stop sleeve 21, the electric plug 13 and the power cord from being pulled off.

[0029] The connection base 12 is provided with a recessed groove 16 for accommodating the electrical connector, the recessed groove 16 is circular and provided with an internal thread, and the stop sleeve 21 is provided with an external thread 28 matching the internal thread. The stop sleeve 21 has a recessed groove 16 and an internal thread corresponding to the connection base 12, so that the connection base 12 has no protruding structure, avoiding damage caused by bumping against the protruding position due to mistakes in daily operation, making the vacuum cleaner barrel 11 safer and more durable, and also convenient for packaging and transportation, avoiding bumping against the threaded connection part of the connection base 12 during transportation.

[0030] In addition, the utility model also discloses a backpack vacuum cleaner, which includes a vacuum cleaner barrel 11, and the vacuum cleaner barrel 11 is provided with the power cord anti-detachment protection component of the above-mentioned backpack vacuum cleaner, so that its power cord connection is firm and stable, and the plug-in relationship between the electric plug and the electric connector will not be pulled out during operation due to the large pulling force generated by the long power cord.

[0031] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A power cord anti-drop protection assembly for a backpack vacuum cleaner, characterized in that: It includes a connecting seat which is integrally fixedly installed on the vacuum cleaner barrel and is provided with an electric connector, an electric plug with a power cord which can be plugged and unplugged with the electric connector, a stop sleeve which is spirally connected to the connecting seat, and an inner lining which is matched with the stop sleeve. The end of the stop sleeve is provided with a loop hole through which the power cord can freely move, the inner side of the end of the stop sleeve is provided with a stop shoulder which prevents the electric plug from being pulled off due to the axial movement of the stop sleeve, the stop sleeve is provided with a side slit which is larger than the diameter of the power cord, and the side slit extends along the side wall of the stop sleeve from the bottom opening to the loop hole; the inner lining has a limit stop block which is adapted to be arranged at the side slit.

2. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 1, characterized in that: The outer side surface of the lining member is located within the edge of the side slit, and the width of the side slit is greater than 1.2 times the diameter of the power cord.

3. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 1 or 2, characterized in that: The lining member is provided with an arc-shaped supporting leg which is arranged to fit the inner side surface of the stop sleeve, and the stop sleeve is provided with a blocking boss which blocks the front end of the arc-shaped supporting leg to prevent the lining member and its limiting block from sinking inwards.

4. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 1, characterized in that: The lining member is provided with a semicircular ring-shaped blocking sheath located at the bottom of the anti-slip shoulder and used for preventing the power cord from excessively deflecting.

5. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 4, characterized in that: A limiting block for supporting and blocking the end of the sheath is arranged inside the stop sleeve.

6. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 1, characterized in that: The width of the inner space of the stop sleeve is greater than the maximum transverse span of the corresponding height position of the electric plug.

7. The power cord anti-drop protection assembly for a backpack vacuum cleaner according to claim 1, characterized in that: The connection seat is provided with a recessed groove for accommodating the electric connector, the recessed groove is circular and provided with an internal thread, and the stop sleeve is provided with an external thread matching the internal thread.

8. A backpack vacuum cleaner, characterized in that: The utility model comprises a vacuum cleaner barrel body, and the vacuum cleaner barrel body is provided with a power cord anti-dropping protection component of a backpack vacuum cleaner as claimed in any one of claims 1 to 7.

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