Backpack type dust collector and power line slow-pulling anti-folding assembly of backpack type dust collector

Abstract

The utility model discloses a power line slow-pulling anti-folding assembly of a backpack dust collector. The connecting seat is integrally and fixedly arranged on a barrel body of the dust collector and is provided with an electric connector; the electric plug can be connected with the electric connector in a plugging manner and is provided with a power line; the traction head is integrally formed with the power line and is separated from the electric plug; the radial size of the traction head is larger than that of the power line; the two ends of the elastic inhaul cable are connected with the tightening inhaul cable, and the length of the tightening inhaul cable is smaller than that of the power line between the electric plug and the traction head; the natural shrinkage length of the elastic inhaul cable is smaller than the length of the tensioning cable between the two ends of the elastic inhaul cable and the tensioning cable connecting part, and the elastic inhaul cable can extend to the length corresponding to the tensioning cable. The tight inhaul cable plays a role in stress and plays a role in stress protection on the power line, and the elastic inhaul cable prevents the power line from being dragged rapidly, so that the power line is dragged, buffered and protected, and fatigue damage of the power line caused by excessive bending is prevented. 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 slow pull and anti-fold component of a backpack vacuum cleaner. Background Art

[0002] Vacuum cleaner power cords are usually relatively long, connected from a mains socket and led to the vacuum cleaner. One wiring method is to directly connect the power cord to the inside of the vacuum cleaner and set a fixing device to prevent the power cord from being pulled out. However, when the pulling force is too large, it is still easy to be pulled off, resulting in electric leakage or tearing and disconnection, and the power cord cannot be directly and simply replaced. Another is to set a connection socket for power plug-in connection. Under the action of a large pulling force, the plug-and-play structure is easy to become loose, and the fulcrum of the force during the shaking of the electric plug is at the root of the electric plug, making it easier to become loose.

[0003] The above two power cord connection methods both form stress concentration at the root of the power cord between the power cord and the vacuum cleaner chassis or the plug, and the pulling force acts on a local position. Frequent shaking and pulling forces exceeding a certain intensity will surely pull off the plug, locally pull and damage the power cord passing through the chassis, or bend and damage it. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a power cord slow pull and anti-fold component of a backpack vacuum cleaner that can buffer and protect the power cord during pulling and prevent fatigue damage of the power cord caused by excessive bending; and also provide a backpack vacuum cleaner including the above power cord connection component.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a power cord slow pull and anti-fold component of a backpack vacuum cleaner, which includes a connection seat integrally and fixedly installed on the vacuum cleaner barrel body and provided with an electrical connector, an electrical plug with a power cord that can be plugged and unplugged with the electrical connector, a pulling head integrally formed with the power cord and having a radial dimension larger than that of the power cord when leaving the electrical plug, a tight pulling cable with one end connected to the pulling head and the other end connected to the barrel body, and an elastic pulling cable with both ends connected to the tight pulling cable. The length of the tight pulling cable is less than the length of the power cord between the electrical plug and the pulling head; the natural contraction length of the elastic pulling cable is less than the length of the tight pulling cable between the two ends where it is connected to the tight pulling cable, and it can be extended to the length corresponding to the tight pulling cable.

[0006] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the utility model, the pulling head is in the form of a large and small head. The power cord passes through the small head of the pulling head and is obliquely led out from one side of the large head part to the electrical plug. A pull ring is provided on the other side of the large head part of the pulling head for buckling with the tight pulling cable.

[0007] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, the tight pull cord is a flat woven belt; the elastic pull cord is a flat rubber band.

[0008] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, both ends of the elastic pull cord are provided with snap buttons to be buckled with the extension belt led out from the tight pull cord.

[0009] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, a buckle ear is provided at the connection seat or near the connection seat of the barrel body, one end of the tight pull cord is sleeved on the buckle ear, and the other end of the tight pull cord is buckled with the pulling head.

[0010] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, a buckle ear is provided at the connection seat or near the connection seat of the barrel body, the tight pull cord is provided with a lock buckle that can be detachably connected to the buckle ear, and the other end of the tight pull cord is buckled with the pulling head.

[0011] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, the tight pull cord includes a main section and a sub-section, the main section and the sub-section are butt-jointed through a snap button, the main section is attached to the elastic pull cord and connected to the barrel body, and the sub-section is fixedly connected to the pulling head.

[0012] As an improvement to the technical solution of the power cord slow pull and anti-fold component of the backpack vacuum cleaner of the present utility model, there is a backpack shoulder strap fixedly connected to the barrel body, a angled diagonal pull strap with two ends respectively connected to the upper and lower parts of one side of the backpack shoulder strap, the barrel body is provided with a fixed buckle ear and leads out a horizontal pull strap, and the angled part of the diagonal pull strap is buckled with the horizontal pull strap through a snap button.

[0013] In addition, the technical solution of the overall device adopted by the present utility model is: a backpack vacuum cleaner, which includes a vacuum cleaner barrel body, and the vacuum cleaner barrel body is provided with the power cord slow pull and anti-fold component of the backpack vacuum cleaner described in any one of the foregoing technical solutions.

[0014] The beneficial effects of the present utility model are as follows: A pulling head is provided at a certain distance from the electrical plug to sleeved and fix the power cord. The front section of the power cord corresponding to the electrical plug is led out from the proximal end of the pulling head. A tension cable is also correspondingly connected to the proximal end of the pulling head. The tension cable is connected between the pulling head and the vacuum cleaner barrel body, and the tension cable is shorter than the corresponding power cord, so as to play a stress role, releasing the stress on the front section of the power cord. This section of the power cord only needs to perform the function of conducting electricity, which plays a very good role in protecting the power cord from stress. In addition, both ends of the elastic cable are fixedly connected to the tension cable, playing a role of stretching and buffering. It plays a role of pulling the power cord before the tension cable is straightened, forming a buffer tension at the starting stage in advance, avoiding rapid pulling on the rear section of the power cord after the pulling head of the power cord, and playing a role of protecting the power cord. When the function of the tension cable pulling the power cord stops, the elastic cable can further slowly pull the power cord, enabling it to obtain a certain buffer distance. The combination of the tension cable and the elastic cable acts together to buffer and protect the power cord and prevent fatigue damage of the power cord caused by excessive bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 6 is a front structural schematic diagram of a backpack vacuum cleaner (with a power cord slow-pulling and anti-bending assembly for a backpack vacuum cleaner, and removing the unilateral backpack strap) of the present utility model.

[0016] Figure 2 is Figure 1 a front structural schematic diagram of another embodiment of the power cord slow-pulling and anti-bending assembly of the backpack vacuum cleaner shown in FIG.

[0017] Figure 3 is Figure 1 a partial three-dimensional structural schematic diagram of the backpack vacuum cleaner shown in FIG. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further illustrates the detailed embodiments of the present utility model in conjunction with the accompanying drawings.

[0019] As Figure 1 、 Figure 3As shown in the figure, a power cord slow-drawing and anti-bending component of a backpack vacuum cleaner of the present utility model includes a connecting seat 12 integrally and fixedly installed on a vacuum cleaner barrel body 11 and provided with an electrical connector, an electrical plug 13 with a power cord 31 that can be plugged and unplugged from the electrical connector, a pulling head 32 integrally formed with the power cord 31 and having a radial dimension larger than that of the power cord when leaving the electrical plug, a tight pulling cable 33 with one end connected to the pulling head 32 and the other end connected to the barrel body 11, and an elastic pulling cable 35 with both ends connected to the tight pulling cable 33. The length of the tight pulling cable 33 is less than the length of the power cord between the electrical plug 13 and the pulling head 32; the natural contraction length of the elastic pulling cable 35 is less than the length of the tight pulling cable between the two connection parts of the tight pulling cable 33 at both ends of the elastic pulling cable 35, and it can be extended to the length corresponding to the tight pulling cable 33. The pulling head 32 is set at a certain distance from the electrical plug 13 to sleeved and fix the power cord 31, and the front section of the power cord 31 corresponding to the electrical plug 13 is led out from the proximal end of the pulling head 32. The proximal end of the pulling head 32 is also correspondingly connected to the tight pulling cable 33. The tight pulling cable 33 is connected between the pulling head 32 and the vacuum cleaner barrel body 11, and the tight pulling cable 33 is shorter than the corresponding power cord 31, so as to play a stress role, releasing the stress of the front section of the power cord. This section of the power cord only needs to play the function of conducting electricity, which plays a very good role in protecting the power cord 31 from stress. In addition, both ends of the elastic pulling cable 35 are fixedly connected to the tight pulling cable 33, playing a role of stretching and buffering. Before the tight pulling cable 33 is straightened, it plays a role of pulling the power cord, forming a role of starting early to buffer the pulling force, avoiding rapid pulling of the rear section of the power cord 31 after the pulling head 32 of the power cord 31, and playing a role of protecting the power cord 31; when the pulling action of the tight pulling cable 33 on the power cord stops, the elastic pulling cable 35 can further slowly pull the power cord, enabling it to obtain a certain buffer distance. The elastic pulling cable 35 can be stretched to be equal in length to the corresponding tight pulling cable 33. The tight pulling cable 33 and the elastic pulling cable 35 act together to pull and buffer the protection of the power cord and prevent the power cord from being damaged due to excessive bending and fatigue.

[0020] Among them, the pulling head 32 is in the form of a large and small head. The power cord 31 passes through the small head of the pulling head 32 and is obliquely led out from one side of the large head part to the electrical plug 13. A pull ring or a perforation is provided on the other side of the large head part of the pulling head 32 for buckling with the tight pulling cable 33. After buckling, in the case of being pulled by force, the body section of the power cord from the distal end to the pulling head 32 together with the pulling head and the tight pulling cable 33 forms a straight extension. The section of the tight pulling cable 33 corresponding to the elastic pulling cable 35 is in a bent state when transmitting the acting force through the elastic pulling cable 35. When the elastic pulling cable 35 is completely stretched until the tight pulling cable 33 is straightened, the elastic pulling cable 35 and the tight pulling cable 33 are stressed together. The vertical drop effect caused by the gravity of the power cord is ignored here.

[0021] Among them, the tight cable 33 is a flat woven belt, which is convenient for connecting with the buckle and is more resistant to stretching; the elastic cable 35 is a flat rubber band, which better cooperates with the tight cable 33 for matching expansion and contraction.

[0022] Furthermore, buckle connectors are provided at both ends of the elastic cable 35 to be buckled with the extension belt led out from the tight cable 33, so that it can be conveniently removed. When the elastic performance of the elastic cable 35 is poor, it can be quickly and better.

[0023] Among them, a buckle ear 21 is provided at the connection seat 12 or near the connection seat 12 of the barrel body 11. One end of the tight cable 33 is sleeved on the buckle ear 21, and the other end of the tight cable 33 is buckled with the pulling head 32 through a loop buckle 39. It can be conveniently installed and connected, and a reliable force-bearing tensile structure is formed, which bears the tensile force of the power cord at the electrical plug and plays a good role in protecting the power cord from force.

[0024] Alternatively, a buckle ear 21 is provided at the connection seat 12 or near the connection seat 12 of the barrel body 11. The tight cable 33 is provided with a lock buckle that can be detachably connected to the buckle ear 21, so that this lock buckle can be unlocked after the electrical plug is pulled out, facilitating the disassembly and separation of the power cord 31 from the barrel body 11. The other end of the tight cable 33 is buckled with the pulling head 32.

[0025] Or, as Figure 2 shown, the tight cable 33 includes a main body section and a sub-section 36. The main body section and the sub-section 36 are butt-jointed through a buckle 38. The main body section is attached to the elastic cable 35 and connected to the barrel body, and the sub-section 36 is fixedly connected to the pulling head. Thus, this buckle 38 can be unlocked after the electrical plug is pulled out, facilitating the disassembly and separation of the power cord 31 from the barrel body 11.

[0026] Among them, a backpack shoulder strap 15 fixedly connected to the barrel body 11 is provided. A corner-shaped diagonal strap 16 with two ends respectively connected to the upper and lower parts of one side of the backpack shoulder strap 15 is provided. The barrel body 11 is provided with a fixed buckle ear 17 and a horizontal strap 18 is led out. The corner part of the diagonal strap 16 is buckled with the horizontal strap 18 through a buckle 19. The fixed buckle ear 17 is arranged near the force-receiving position of the electrical plug. The horizontal strap 18 is led out and then connected to the backpack shoulder strap 15 through the corner-shaped diagonal strap 16, forming a belt structure that surrounds the human body. When the power cord pulls and causes the barrel body to swing, there is a reverse effect of the backpack shoulder strap 15 and the diagonal strap 16, overcoming the swing of the barrel body, avoiding the detachment of the backpack shoulder strap 15 caused by excessive swing, and the discomfort caused by unilateral force caused by the long-term lateral swing of the barrel body in the backpack state.

[0027] In addition, the present utility model also discloses a backpack vacuum cleaner, which includes a vacuum cleaner barrel 11. The vacuum cleaner barrel 11 is provided with the power cord slow pull and anti-fold component of the above-mentioned backpack vacuum cleaner, so that the connection of its power cord is firm and stable, and the plug-in relationship between the electrical plug and the electrical connector will not be pulled off during the operation due to the large tensile force generated by its relatively long power cord.

[0028] The above-disclosed are only the preferred embodiments of the present utility model. Of course, the scope of rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A power cord slow-pull anti-bend 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 pulling head which is integrally formed with the power cord and has a radial dimension larger than the power cord when separated from the electric plug, a tension cable which is connected to the pulling head at one end and to the barrel at the other end, and an elastic cable which is connected to the tension cable at both ends, wherein the length of the tension cable is shorter than the length of the power cord between the electric plug and the pulling head; the natural contraction length of the elastic cable is shorter than the length of the tension cable between its two ends and the connection parts of the tension cable, and can be extended to the length corresponding to the tension cable.

2. The power cord slow-pull anti-bend assembly of a backpack vacuum cleaner according to claim 1, characterized in that: The pulling head is in the form of a large and small head. The power cord is inserted from the small head of the pulling head and is obliquely led out from one side of the large head to the electric plug. A pull ring is provided on the other side of the large head of the pulling head to buckle with the tension rope.

3. The power cord slow-pull anti-bend assembly of a backpack vacuum cleaner according to claim 1, characterized in that: The tension cable is a flat braided belt; the elastic cable is a flat rubber band.

4. The power cord slow-pull anti-bend assembly for a backpack vacuum cleaner according to claim 3, characterized in that: Both ends of the elastic cable are provided with buckles for buckling with the extension belts pointed out by the tightening cable.

5. The power cord slow-pull anti-bend assembly for a backpack vacuum cleaner according to claim 1 or 3, characterized in that: The connecting seat or the barrel body is provided with a buckle ear near the connecting seat, one end of the tension cable is sleeved on the buckle ear, and the other end of the tension cable is buckled with the pulling head.

6. The power cord slow-pull anti-bend assembly for a backpack vacuum cleaner according to claim 1 or 3, characterized in that: The connecting seat or the barrel body is provided with a buckle ear near the connecting seat, the tension cable is provided with a lock buckle which can be detachably connected with the buckle ear, and the other end of the tension cable is buckled with the pulling head.

7. The power cord slow-pull anti-bend assembly for a backpack vacuum cleaner according to claim 1 or 3, characterized in that: The tension cable comprises a main section and a secondary section, the main section and the secondary section are connected via a buckle, the main section is attached to the elastic cable and connected to the barrel body, and the secondary section is fixedly connected to the pulling head.

8. The power cord slow-pull anti-bend assembly for a backpack vacuum cleaner according to claim 1, characterized in that: A shoulder strap fixedly connected to the barrel body is provided, and an angled diagonal belt whose two ends are respectively connected to the upper and lower parts of the shoulder strap on one side. The barrel body is provided with a fixed buckle ear and a transverse belt is led out. The angled part of the diagonal belt is buckled with the transverse belt through a buckle.

9. 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 slow-pull anti-bending component of a backpack vacuum cleaner as claimed in any one of claims 1 to 8.

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