CN212139716U

CN212139716U - Pull rod knapsack with prevent dirty function

Info

Publication number: CN212139716U
Application number: CN202020791845.8U
Authority: CN
Inventors: 戴泽鹏; 戴婷红
Original assignee: Quanzhou Xinleishi Luggage Industry Co ltd
Current assignee: Quanzhou Xinleishi Luggage Industry Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-15
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a pull rod backpack with anti-dirty function, which comprises a protection bracket provided with an installation cavity, a backpack body fixedly connected with the protection bracket and provided with braces, a pull rod component arranged on the protection bracket and a roller support connected with the inner wall of the installation cavity along the vertical sliding; the back of the bag body is provided with an interlayer, the pull rod assembly comprises a fixed sleeve fixedly connected to the protection bracket and penetrating through the interlayer of the bag body, a pulling rod inserted in the fixed sleeve in a sliding manner along the axial direction of the fixed sleeve and a fixing piece for limiting the sliding of the pulling rod, and an inner hole of the fixed sleeve is communicated with the installation cavity; the roller support is rotatably connected with a rolling wheel through a rotating shaft, and the pulling rod is provided with a retraction mechanism for retracting the rolling wheel. The utility model discloses when having the dilatory package of user and using as the shoulders bag with the package after, on avoiding the foul of gyro wheel to be stained with the clothing, can keep the clear effect of user's clothing.

Description

Pull rod knapsack with prevent dirty function

Technical Field

The utility model belongs to the technical field of the knapsack technique and specifically relates to a pull rod knapsack with prevent dirty function is related to.

Background

The backpack refers to a general name of a bag carried on the back when going out or marching. The material is diversified, and fashion trends are led by cases made of genuine leather, plastic materials, terylene, canvas, nylon, cotton, hemp and other textures. Meanwhile, in the period of more and more listing the personality, various styles such as conciseness, vintage, cartoon and the like also meet the requirement of fashion people for developing the personality from different sides. The style of the case is also expanded from the traditional business bag, schoolbag and traveling bag to the pen bag, change purse, small perfume bag and the like.

At present, a plurality of backpack bodies are provided with pull rods, and when a plurality of heavier objects are carried on the backpack bodies, the backpack bodies can be dragged by using the pull rods instead of being carried on the backpack bodies, so that the load of walking is reduced. However, when the backpack is used as a pull-rod bag, other dirty objects such as dust on the ground and the like cannot be stained, and when the backpack is used as a backpack, the dirty objects can be stained on clothes, so that the clothes are dirty; particularly, in rainy days, not only the clothes are stained, but also the clothes are wetted, which causes inconvenience in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pull rod knapsack with prevent dirty function, its advantage lies in that the user is dilatory to wrap the back when using as the shoulders bag, avoids the foul of gyro wheel to be stained with on the clothing, can keep user's clothing clean.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a pull rod knapsack with prevent dirty function which characterized in that: the bag comprises a protection bracket provided with an installation cavity, a bag body which is fixedly connected with the protection bracket and is provided with a strap, a pull rod assembly arranged on the protection bracket, and a roller support which is connected to the inner wall of the installation cavity in a sliding manner along the vertical direction; the back of the bag body is provided with an interlayer, the pull rod assembly comprises a fixed sleeve fixedly connected to the protection bracket and penetrating through the interlayer of the bag body, a pulling rod inserted in the fixed sleeve in a sliding manner along the axial direction of the fixed sleeve and a fixing piece for limiting the sliding of the pulling rod, and an inner hole of the fixed sleeve is communicated with the installation cavity; the gyro wheel support rotates through the pivot and is connected with the wheel that rolls, the pulling rod is provided with the jack mechanism that receive and releases the wheel that rolls, jack mechanism includes that elasticity rotates and sets up in the rolling cylinder of installation intracavity wall, rotates and connects in the pulling rod lower part and be located the reverse wheel of rolling cylinder top, a plurality of rotations are connected in the leading wheel of installation intracavity wall, one end is fixed around rolling up in the haulage rope of rolling cylinder and other end fixed connection in the gyro wheel support and force the gyro wheel support to upwards slide and accomodate the wheel in the elastic component of installation intracavity, and the haulage rope respectively butt is global under the last of reverse wheel and leading wheel.

By adopting the technical scheme, when a user needs to drag the bag body, the pulling rod is pulled to slide upwards to drive the reversing wheel at the lower part of the pulling rod to ascend, the traction rope drives the winding roller to pay off the rope, the pulling rod is continuously pulled to slide upwards after all the traction ropes on the winding roller are released, the roller support is driven to slide downwards through the guide wheel, at the moment, the elastic piece has elastic potential energy, so that the rolling wheel protrudes out of the lower end face of the protection support seat, the sliding of the pulling rod is limited through the fixing piece, and the sliding position of the roller support seat is fixed; when the user need carry on the back to the inclusion and take, remove the limiting displacement of mounting, press down the pulling rod downwards and make it insert and locate fixed sleeve, thereby the elastic component resets and drives the gyro wheel support and upwards slide and realize that the wheel that rolls is accomodate in the installation cavity, realize the hidden of wheel that rolls and accomodate, when effectively preventing that the user from carrying on the back to the inclusion, the wheel that rolls takes place the contact with the clothing, avoid rolling on the wheel on dirty being stained with the clothing, can keep the clothing clean, the pulling rod in-process that slides downwards, the rolling cylinder carries out the rolling action to the haulage rope, it is in the state of straightening all the time to keep the haulage.

The present invention may be further configured in a preferred embodiment as: the rolling wheel support is provided with two, the rolling wheel is provided with two correspondingly, two the rolling wheel is located the both sides of protection bracket rear end, the lower terminal surface of protection bracket is provided with the supporting shoe that is located the anterior part of inclusion, the supporting shoe is provided with two and is located the both sides of protection bracket front end.

Through adopting above-mentioned technical scheme, be provided with two rolls wheel and two supporting shoes, distribute in four apex points departments of the lower terminal surface of protection bracket thereby effectively support the inclusion, when the user stops dragging the inclusion, be convenient for keep the inclusion in the state of standing, prevent effectively that the inclusion from taking place to collapse.

The present invention may be further configured in a preferred embodiment as: the elastic part is an extension spring, one end of the extension spring is fixedly connected to the inner wall of the top of the installation cavity, and the other end of the extension spring is fixedly connected to the upper end face of the roller support.

Through adopting above-mentioned technical scheme, the elastic component is extension spring setting, and extension spring can improve great elastic potential energy, the gyro wheel support of being convenient for resets.

The present invention may be further configured in a preferred embodiment as: the winding device is characterized in that winding grooves used for mounting the winding roller are formed in the inner walls of the two sides of the mounting cavity respectively, a winding shaft with two ends rotatably connected to the inner walls of the two sides of the winding groove is coaxially and fixedly inserted into the winding roller, a coil spring for automatically winding a traction rope is fixedly sleeved between the winding roller and the inner wall of the winding groove, the inner end of the coil spring is fixedly connected with the outer wall of the winding shaft, and the outer end of the coil spring is fixedly connected with the inner wall of the winding groove.

By adopting the technical scheme, the winding drum is rotatably installed to the winding groove and the winding drum through the winding spring in the winding groove, the winding drum is enabled to rotate under the driving of external force, the winding spring stores elastic force in a deformation mode, the winding drum can be driven to rotate when the winding drum has a reset condition, the traction rope on the winding drum can be pulled out and then has the capacity of automatically winding and attaching the winding drum, and the traction rope is always kept in a stretched state.

The present invention may be further configured in a preferred embodiment as: the winding roller, the reversing wheel and the guide wheel are provided with annular grooves.

Through adopting above-mentioned technical scheme, the rolling cylinder is provided with the annular groove, the rope receiving effect of rolling cylinder of being convenient for, and reverse wheel and leading wheel are provided with the annular groove, reduce the emergence that the pull rope takes place the drunkenness phenomenon, make it have good direction effect.

The present invention may be further configured in a preferred embodiment as: the side wall of the fixed sleeve is radially provided with a threaded hole, the side wall of the pulling rod is radially provided with a through hole, the diameter of the through hole is larger than that of the threaded hole, the fixing piece is a screw rod which is in threaded connection with the threaded hole, the end part of the screw rod penetrates through the through hole, and the end part of the screw rod is fixedly connected with an adjusting wheel positioned outside the fixed sleeve.

Through adopting above-mentioned technical scheme, screw or loosen the screw rod through the regulating wheel for the tip passes or breaks away from in the through-hole of pulling the pole, realizes the restriction of sliding or removing its restriction effect of pulling the pole.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a portable luggage bag, including fixed sleeve, pulling rod, connecting rod lateral wall fixedly connected with are located the fixed sleeve outside and place interbedded connecting rod in, the spout that vertical extension and intercommunication in fixed sleeve inner bore passed in order to supply the connecting rod is seted up along fixed sleeve's lateral wall, the connecting rod is provided with two and follows the axis symmetric distribution of pulling rod, the perforation that communicates in the intermediate layer and pass in order to supply the braces is seted up to the back lower extreme of inclusion, the braces is provided with two, the up end fixed connection of braces is in the back upper end.

Through adopting above-mentioned technical scheme, the back upper end of the upper end fixed connection inclusion of braces, its lower extreme passes perforation fixed connection in the intraformational connecting rod of inclusion, when the user need drag the inclusion, upwards stimulates the pulling pole to drive the connecting rod and upwards slide, realize tightening up the braces that will be located the inclusion outside, on the one hand, make the braces lower part be unlikely to drag subaerial and hinder the dragging of pull rod knapsack, on the other hand, avoid the braces to be made dirty, keep the clean and tidy degree of braces.

To sum up, the utility model discloses a following at least one useful technological effect:

when a user needs to drag the bag body, the pulling rod is pulled to slide upwards to drive the reversing wheel at the lower part of the pulling rod to ascend, the traction rope drives the winding roller to unwind, after all the traction ropes on the winding roller are released, the pulling rod is continuously pulled to slide upwards, the roller support is driven to slide downwards through the guide wheel, at the moment, the elastic part has elastic potential energy, so that the rolling wheel protrudes out of the lower end face of the protection support seat, the sliding of the pulling rod is limited through the fixing part, and the sliding position of the roller support is fixed; when a user needs to carry the bag body, the limiting effect of the fixing part is removed, the pulling rod is pressed downwards to be inserted into the fixing sleeve, the elastic part resets to drive the roller support to slide upwards so as to realize that the rolling wheel is accommodated in the installation cavity, and the hidden accommodation of the rolling wheel is realized, so that the rolling wheel is effectively prevented from contacting with clothes when the user carries the bag body, the dirt on the rolling wheel is prevented from being stained on the clothes, and the clothes can be kept clean;

the upper end fixed connection inclusion back upper end of braces, its lower extreme pass perforation fixed connection in the intraformational connecting rod of clamp, when the user need drag the inclusion, upwards pulling pole to drive the connecting rod and upwards slide, realize tightening up the braces that will be located the inclusion outside, on the one hand, make the braces lower part be unlikely to drag subaerial and hinder the dragging of pull rod knapsack, on the other hand, avoid the braces to be made dirty, keep the clean and tidy degree of braces.

Drawings

FIG. 1 is a schematic structural view of a backpack with a pull rod having an anti-contamination function according to an embodiment;

FIG. 2 is a schematic diagram showing the internal structure of the enclosure interlayer and the installation cavity in the embodiment;

FIG. 3 is an exploded view of the structure of the wind-up roll and the coil spring in the embodiment;

FIG. 4 is a schematic structural diagram of a retracting mechanism in an embodiment;

FIG. 5 is a schematic structural diagram of a winding roller, a reversing wheel and a guide wheel in the embodiment;

fig. 6 is a schematic view showing a tightened state of the shoulder strap in the embodiment.

In the figure, 1, a protection bracket; 11. a mounting cavity; 12. a chute; 13. a coiling groove; 2. a bag body; 21. an interlayer; 22. a harness; 14. a support block; 3. a drawbar assembly; 31. fixing the sleeve; 32. pulling a rod; 33. a fixing member; 34. an adjustment wheel; 35. a connecting rod; 4. a roller support; 41. a rotating shaft; 42. a rolling wheel; 43. sliding and protruding; 44. mounting blocks; 5. a retraction mechanism; 51. a winding roller; 511. a winding shaft; 512. a coil spring; 52. a reversing wheel; 53. a guide wheel; 54. a hauling rope; 55. an elastic member; 56. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a pull rod knapsack with prevent dirty function, including protection bracket 1, the fixed connection that is provided with installation cavity 11 just are equipped with the inclusion 2 of braces 22 in protection bracket 1, install in the pull rod assembly 3 of protection bracket 1 and along vertical sliding connection in the gyro wheel support 4 of installation cavity 11 inner wall, the back of inclusion 2 is provided with intermediate layer 21, and gyro wheel support 4 rotates through pivot 41 (refer to fig. 3) and is connected with the wheel 42 that rolls.

Referring to fig. 1 and 3, the inner wall of the installation cavity 11 is provided with a sliding groove 12 extending vertically, the roller support 4 is provided with two installation blocks 44 and sliding protrusions 43 connected to the sliding groove 12 in a sliding manner, the two roller supports 4 are provided with two corresponding rolling wheels 42, the two rolling wheels 42 are distributed on two sides of the rear end of the protection bracket 1, the lower end face of the protection bracket 1 is provided with two supporting blocks 14 located at the front part of the bag body 2, and the supporting blocks 14 are provided with two sides located at the front end of the protection bracket 1. The two rolling wheels 42 and the two supporting blocks 14 are distributed at four top points of the lower end surface of the protection bracket 1, so that the bag body 2 is effectively supported, and when a user stops dragging the bag body 2, the bag body 2 is conveniently kept in a standing state, and the bag body 2 is effectively prevented from collapsing.

The pull rod assembly 3 comprises a fixed sleeve 31 fixedly connected to the protection bracket 1 and penetrating through the interlayer 21 of the bag body 2, a pulling rod 32 slidably inserted in the fixed sleeve 31 along the axial direction of the fixed sleeve 31, and a fixing member 33 limiting the sliding of the pulling rod 32, the upper end of the fixed sleeve 31 protrudes out of the bag body 2, and an inner hole of the fixed sleeve 31 is communicated with the installation cavity 11. The upper end side wall of the fixed sleeve 31 is radially provided with a threaded hole, the side wall of the pulling rod 32 is radially provided with a through hole, the diameter of the through hole is larger than that of the threaded hole, the fixing piece 33 is a screw rod which is in threaded connection with the threaded hole and the end part of the screw rod penetrates through the through hole, and the end part of the screw rod is fixedly connected with an adjusting wheel 34 which is positioned outside the fixed sleeve 31.

Referring to fig. 3 and 4, the pulling rod 32 is provided with two sets of retracting mechanisms 5 for retracting the rolling wheels 42, each set of retracting mechanisms 5 includes a winding roller 51 disposed on the inner wall of the mounting cavity 11 in an elastic rotation manner, a reversing wheel 52 rotatably connected to the lower end of the pulling rod 32 and located above the winding roller 51, two guide wheels 53 rotatably connected to the inner wall of the mounting cavity 11, a pulling rope 54 with one end fixedly wound on the winding roller 51 and the other end fixedly connected to the lower end face of the mounting block 44 on the roller support 4, and an elastic member 55 for forcing the roller support 4 to slide upwards to accommodate the rolling wheels 42 in the mounting cavity 11. The axes of the winding drum 51, the reversing wheel 52 and the wire guide wheel are arranged parallel to each other, wherein one guide wheel 53 is located directly below the reversing wheel 52 and the other guide wheel 53 is located directly below the sliding protrusion 43. Referring to fig. 5, the winding drum 51, the reversing wheel 52 and the guide wheel 53 are provided with annular grooves 56, and the traction ropes 54 respectively abut against the upper peripheral surface of the annular groove 56 of the reversing wheel 52 and the lower peripheral surface of the annular groove 56 of the guide wheel 53.

The inner walls of the two sides of the mounting cavity 11 are respectively provided with a winding groove 13 for mounting the winding roller 51, and the winding roller 51 is coaxially and fixedly inserted with a winding shaft 511, two ends of which are respectively connected to the inner walls of the two winding grooves 13 in a rotating manner. A coil spring 512 for automatically winding the traction rope 54 is fixedly sleeved between the winding roller 51 and the inner wall of the winding groove 13, the inner end of the coil spring 512 is fixedly connected with the outer wall of the winding shaft 511, and the outer end of the coil spring 512 is fixedly connected with the inner wall of the winding groove 13. The elastic member 55 is an extension spring, one end of which is fixedly connected to the top inner wall of the mounting cavity 11 and the other end of which is fixedly connected to the upper end surface of the roller support 4.

Referring to fig. 2 and 6, the connecting rod 35 located outside the fixing sleeve 31 and arranged inside the interlayer 21 is fixedly connected to the side wall of the pulling rod 32, a sliding groove extending vertically and communicated with the inner hole of the fixing sleeve 31 for the connecting rod 35 to pass through is formed in the side wall of the fixing sleeve 31, and the connecting rod 35 is provided with two connecting rods and symmetrically distributed along the axis of the pulling rod 32. The braces 22 are provided with two, the lower end of the back of the bag body 2 is provided with a through hole which is communicated with the interlayer 21 and is used for the braces 22 to pass through, the upper end surface of the braces 22 is fixedly connected to the upper end of the back of the bag body 2, and the lower end of the braces 22 passes through the through hole and is fixedly connected to the connecting rod 35.

The implementation principle of the embodiment is as follows: when a user needs to drag the bag body 2, the screw rod is unscrewed through the adjusting wheel 34 to be separated from the through hole, the pulling rod 32 is pulled upwards to drive the reversing wheel 52 at the lower part to ascend, the pulling rope 54 drives the winding roller 51 to release the rope, after the pulling rope 54 on the winding roller 51 is completely released, the pulling rod 32 is continuously pulled to slide upwards, the roller support 4 is driven to slide downwards through the guide wheel 53, at the moment, the stretching spring is stretched to have elastic potential energy, so that the rolling wheel 42 protrudes out of the lower end face of the protection support seat 1, the screw rod is screwed to enable the end part of the screw rod to penetrate through the through hole, and therefore the sliding position of the roller support 4 is fixed; when the user needs to carry on one's back the inclusion 2 and take, remove the limiting action of screw rod, press the pulling rod 32 downwards and make it insert and locate in fixed sleeve 31, extension spring resets and drives gyro wheel support 4 and upwards slide thereby realize that rolling wheel 42 accomodates in installation cavity 11, realize rolling wheel 42's hidden accomodating, when effectively preventing that the user from carrying on one's back inclusion 2, rolling wheel 42 and clothing take place to contact, avoid on the rolling wheel 42 on the dirty thing is stained with the clothing, can keep the clothing clean, the pulling rod 32 in-process that slides downwards, rolling cylinder 51 carries out the rolling action to haulage rope 54, it is in the stretched state to keep haulage rope 54 all the time.

The upper end of the shoulder strap 22 is fixedly connected with the upper end of the back of the bag body 2, the lower end of the shoulder strap passes through the through hole and is fixedly connected with the connecting rod 35 in the interlayer 21, when a user needs to drag the bag body 2, the pulling rod 32 is pulled upwards, the connecting rod 35 is driven to slide upwards, the shoulder strap 22 positioned outside the bag body 2 is tightened, on one hand, the lower part of the shoulder strap 22 is prevented from being dragged on the ground to hinder the dragging of the pull rod shoulder strap, on the other hand, the shoulder strap 22 is prevented from being polluted, and the cleanliness of the shoulder strap 22 is.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pull rod knapsack with prevent dirty function which characterized in that: the bag comprises a protection bracket (1) provided with a mounting cavity (11), a bag body (2) which is fixedly connected with the protection bracket (1) and is provided with straps (22), a pull rod assembly (3) arranged on the protection bracket (1) and a roller support (4) which is connected with the inner wall of the mounting cavity (11) in a sliding manner along the vertical direction; the back of the bag body (2) is provided with an interlayer (21), the pull rod assembly (3) comprises a fixed sleeve (31) which is fixedly connected to the protection bracket (1) and penetrates through the interlayer (21) of the bag body (2), a pulling rod (32) which is inserted into the fixed sleeve (31) in a sliding manner along the axial direction of the fixed sleeve (31), and a fixing piece (33) which limits the sliding of the pulling rod (32), and an inner hole of the fixed sleeve (31) is communicated with the installation cavity (11); the roller support (4) is rotationally connected with a rolling wheel (42) through a rotating shaft (41), the pulling rod (32) is provided with a retraction mechanism (5) for retracting the rolling wheel (42), the winding and unwinding mechanism (5) comprises a winding roller (51) which is arranged on the inner wall of the installation cavity (11) in an elastic rotating mode, a reversing wheel (52) which is connected to the lower portion of the pulling rod (32) in a rotating mode and located above the winding roller (51), a plurality of guide wheels (53) which are connected to the inner wall of the installation cavity (11) in a rotating mode, a traction rope (54) with one end fixedly wound on the winding roller (51) and the other end fixedly connected to the roller support (4) and an elastic piece (55) which forces the roller support (4) to slide upwards to store the rolling wheel (42) in the installation cavity (11), and the traction rope (54) is respectively abutted to the upper peripheral surface of the reversing wheel (52) and the lower peripheral surface of the guide wheels (53.

2. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: the bag body is characterized in that the number of the roller supports (4) is two, the number of the rolling wheels (42) is two, the rolling wheels (42) are located on two sides of the rear end of the protection bracket (1), a supporting block (14) located on the front portion of the bag body (2) is arranged on the lower end face of the protection bracket (1), and the two supporting blocks (14) are arranged on two sides of the front end of the protection bracket (1).

3. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: elastic component (55) are extension springs, extension springs's one end fixed connection in the top inner wall of installation cavity (11) and other end fixed connection in the up end of gyro wheel support (4).

4. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: the winding device is characterized in that winding grooves (13) used for mounting the winding drum (51) are respectively formed in inner walls of two sides of the mounting cavity (11), the winding drum (51) is coaxially and fixedly inserted with winding shafts (511) with two ends rotatably connected to inner walls of two sides of the winding grooves (13), a coil spring (512) for automatically winding the traction rope (54) is fixedly sleeved between the winding drum (51) and the inner wall of the winding groove (13), the inner end of the coil spring (512) is fixedly connected with the outer wall of the winding shaft (511), and the outer end of the coil spring (512) is fixedly connected with the inner wall of the winding groove (13).

5. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: the winding roller (51), the reversing wheel (52) and the guide wheel (53) are provided with annular grooves (56).

6. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: the side wall of the fixed sleeve (31) is radially provided with a threaded hole, the side wall of the pulling rod (32) is radially provided with a through hole, the diameter of the through hole is larger than that of the threaded hole, the fixing piece (33) is a screw rod which is in threaded connection with the threaded hole and the end part of the screw rod penetrates through the through hole, and the end part of the screw rod is fixedly connected with an adjusting wheel (34) which is positioned outside the fixed sleeve (31).

7. The pull-rod backpack with an anti-soiling function according to claim 1, characterized in that: pulling pole (32) lateral wall fixedly connected with is located fixed sleeve (31) outside and places connecting rod (35) of intermediate layer (21) in, the lateral wall of fixed sleeve (31) is seted up along vertical extension and is communicated in fixed sleeve (31) hole in order to supply the groove that slides that connecting rod (35) passed, connecting rod (35) are provided with two and are followed the axis symmetric distribution of pulling pole (32), the perforation of communicateing in intermediate layer (21) and passing in order to supply braces (22) to pass is seted up to the back lower extreme of inclusion (2), braces (22) are provided with two, the up end fixed connection of braces (22) is in the back upper end of inclusion (2), and the lower extreme of braces (22) passes perforation fixed connection in connecting rod (35).