Dragging frame, backrest supporting pad structure and draggable backpack

Abstract

The utility model discloses a dragging frame, a backrest supporting pad structure and a draggable knapsack, and relates to the technical field of draggable knapsacks, the dragging frame comprises a knapsack body and a dragging frame, the dragging frame comprises a bottom support, and the knapsack body is connected with the dragging frame through at least one connecting component; the bottom support comprises a mounting plate, a telescopic plate and a self-adaptive adjusting component, the self-adaptive adjusting component is used for automatically adjusting the total width of the mounting plate and the telescopic plate when being subjected to external force, the total width of the mounting plate and the telescopic plate is not changed when the self-adaptive device is not subjected to external force, and a waist protection supporting groove is formed in one side of the telescopic plate; the bag body backrest supporting pads protrude relative to the bottom lining and are distributed on the bottom lining in a bilateral symmetry mode. According to the utility model, the problem that the back and the waist are uncomfortable when the backpack capable of being dragged is carried on the back is solved, and even if the backpack user is accidentally impacted by the auxiliary dragging frame, the pull rod is not a potential safety hazard, and even becomes an indirect anti-collision guardrail.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technology field of a dragable backpack, concretely relates to a drag frame, a backrest supporting pad structure and a dragable backpack. BACKGROUND

[0002] The drag frame is a portable load pushing and pulling support designed with a pull rod and wheels, which is convenient for dragging large or heavy materials when going out, but the existing design is generally fixed size or foldable, and the foldable mainly considers the portability of the user, and the comprehensive safety needs to be improved, for example, the bottom support is larger than the bottom area of the actual load object, and the nearby pedestrians are easily injured.

[0003] The backpack is a necessity in people's life, and the schoolbag is a specific name of the backpack in the learning life of students, and the schoolbag with too large load can cause many hazards to the body, in order to solve the direct load problem, the pull rod schoolbag is gradually widely used, in the specific use process, in order to produce and use conveniently, the pull rod is arranged on the back of the schoolbag, but in the actual carrying process, the back and waist will have a strong uncomfortable feeling, especially when there is an accidental impact, the pull rod close to the back becomes a major hidden danger of health and safety.

[0004] In order to solve the above problems, the drag frame, the backrest supporting pad structure and the dragable backpack are provided. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a drag frame, a backrest supporting pad structure and a dragable backpack, solving the problem that the drag frame is suitable for loads of different sizes, even if the bottom support of the drag frame is much longer than the bottom edge of the load at that time, the bottom support can be self-adaptively contracted and adjusted when being hit by the pedestrians by mistake, the impact is buffered to the maximum extent, and the user and the pedestrians are protected to different degrees.

[0006] The backrest supporting pad structure of the backpack is optimally designed, so that the airflow channel with the chimney effect is generated between the backrest supporting pad and the bottom lining, which is more beneficial to heat dissipation of the back when carrying for a long time, and can reduce the occurrence of health problems such as eczema.

[0007] The installation position of the drag frame of the dragable backpack is re-designed, the front or side of the backpack away from the back is adopted, the problem of discomfort of the back and waist is solved, the auxiliary drag frame, even if the person carrying the backpack is hit by accident, the pull rod is not a safety hazard, and even becomes an indirect anti-collision guardrail.

[0008] In order to achieve the above object, the utility model provides the following technical scheme:

[0009] A drag frame, comprising a bottom support and a pull rod, the bottom support comprises a mounting plate, a telescopic plate and a self-adaptive adjusting member, the telescopic plate is in sliding connection with the mounting plate;

[0010] The adaptive adjustment component includes an adaptive device and a limiting device. When subjected to external force, the adaptive device automatically adjusts the total width of the mounting plate and the telescopic plate. When not subjected to external force, the total width of the mounting plate and the telescopic plate remains unchanged. Rollers are installed at the bottom of the mounting plate.

[0011] Preferably, the mounting plate is provided with a slide rail; the mounting plate is a hollow plate in the shape of a U-shape, and the hollow part is the slide rail; the telescopic plate can slide and extend on the slide rail;

[0012] The adaptive device includes a spring, and the limiting device includes a limiting post and a limiting groove; the limiting device is used to limit the maximum total width of the mounting plate and the telescopic plate; the maximum value can be manually adjusted.

[0013] Preferably, the telescopic plate is provided with a waist protection device at the end away from the mounting plate, and the waist protection device includes a waist support groove; the towing frame also includes a pull rod, which is mounted on the base.

[0014] Preferably, anti-slip components are installed on both sides of the bottom of the telescopic plate.

[0015] Preferably, the mounting plate includes a fixing plate, a connecting plate, and a plurality of support rods, wherein the connecting plate is mounted on one side of the fixing plate via the support rods.

[0016] Preferably, the adaptive adjustment component includes multiple telescopic rods, which are sleeved inside the support rod, and at least one telescopic rod is equipped with a telescopic device and a limiting device between it and the support rod.

[0017] A backrest support pad structure includes a base and a support pad, wherein the support pad is disposed on the base, protrudes relative to the base, and is symmetrically distributed on the base.

[0018] An airflow channel is provided between the upper and lower parts of the support pad, and the opening of the airflow channel near the spine is higher than the opening away from the spine.

[0019] An exhaust channel is provided between the left and right sides of the support pad, and the exhaust channel runs vertically through the back of the backpack.

[0020] Preferably, the airflow channel and exhaust channel projection are approximately trapezoidal.

[0021] Preferably, the back support structure is made of a one-piece molded material, and the outer surface is covered with a flexible and breathable material.

[0022] A towable backpack includes a bag body and a tow frame, the tow frame including a base, the base including a mounting plate, a telescopic plate and an adaptive adjustment component; the telescopic plate is slidably connected to the mounting plate;

[0023] The self-adapting adjusting member comprises a self-adapting device and a limiting device, the self-adapting device is used for automatically adjusting the total width of the mounting plate and the telescopic plate when subjected to external force, and the total width of the mounting plate and the telescopic plate does not change when not subjected to external force;

[0024] The mounting plate bottom is provided with a rolling wheel;

[0025] The connecting member is arranged on the bag body, and the towing frame can be assembled with the bag body through the connecting member.

[0026] Preferably, the bag body further comprises a towing member, the towing member comprises a handle belt and a handle rod, the handle rod is movably sleeved on the handle belt, and the handle rod can be locked on the handle belt when a user holds the handle rod and forcibly drags the backpack; the handle belt is relatively long, and can facilitate straight walking of people of different heights when dragging the backpack.

[0027] Preferably, the towing frame further comprises a pull rod, the pull rod is installed on the bottom support, and the pull rod is on the front face or two sides of the bag body, and is away from the back when the bag body is carried.

[0028] Preferably, the bag body is connected with the towing frame through at least one connecting member.

[0029] Preferably, the connecting member comprises a sleeving belt and a fastener, the sleeving belt and the bag body form a ring through the fastener, and a fixing rod arranged on the pull rod is sleeved on the bag body.

[0030] Preferably, the connecting member comprises a sleeving bag arranged at the bottom of the bag body, the sleeving bag can sleeve the bottom support, and a soft pad layer is arranged at the corresponding position of the waist support groove.

[0031] Preferably, the towing frame comprises a bottom support self-adapting adjusting towing frame.

[0032] Preferably, the bag body comprises a back supporting pad.

[0033] Compared with the prior art, the utility model has the beneficial effects that:

[0034] 1. The utility model discloses a towing frame, which buffers the impact energy of the towing frame when being hit by mistake, and can self-adaptively contract and adjust the bottom support, so that the person carrying the backpack and the person hitting the backpack are protected to different degrees.

[0035] 2. The utility model discloses a backpack, which optimizes the design of the back supporting structure, so that an airflow channel with a chimney effect is formed between the back supporting pad and the bottom lining, heat dissipation of the back is more favorable, and the occurrence of health problems such as eczema can be reduced.

[0036] 3. The utility model discloses a towable backpack, which discards the traditional design idea of a pull rod and adopts a mode of being away from the back, thereby solving the problem of discomfort of the back and waist. With the assistance of the self-adaptive adjustment of the bottom support, even if the person carrying the backpack is hit accidentally, the pull rod is not only not a safety hazard, but also becomes an indirect anti-collision guardrail, thereby effectively improving the safety of use. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 Figure 2 is a front view of the structure of the backpack of the utility model.

[0038] Figure 2 Figure 3 is a rear view of the structure of the backpack of the utility model.

[0039] Figure 3 Figure 4 is a structure A view of the tow frame of the utility model.

[0040] Figure 4 Figure 5 is a structure B view of the tow frame of the utility model.

[0041] Figure 5 Figure 6 is a bottom view of the structure B of the tow frame of the utility model.

[0042] Figure 6 Figure 7 is a handle structure view of the backpack of the utility model.

[0043] The drawings show that the utility model discloses a backpack, which comprises a bag body 1, a tow frame 2, a bottom support 201, a pull rod 202, a connecting member 3, a bottom lining 4, a roller 5, an anti-slip component 6, a support pad 7, a flow-through groove 8, an exhaust passage 9, a waist support groove 10 and a fixed rod 11. DETAILED DESCRIPTION

[0044] In the description of the utility model, it should be understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the directions or position relations shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] The above and other technical features and advantages of the utility model will be described in more detail through specific embodiments in combination with the drawings.

[0046] Example 1, please refer to Figures 3-5 As shown, the technical solution adopted in this specific embodiment is:

[0047] A towing frame includes a base 201 and a pull rod 202. The base 201 includes a mounting plate 2011, a telescopic plate 2012, and an adaptive adjustment member 2013. The telescopic plate 2012 is slidably connected to the mounting plate 2011.

[0048] The adaptive adjustment component 2013 includes an adaptive device and a limiting device. When subjected to external force, the adaptive device is used to automatically adjust the total width of the mounting plate 2011 and the telescopic plate 2012. When the adaptive device is not subjected to external force, the total width of the mounting plate 2011 and the telescopic plate 2012 does not change.

[0049] The bottom of the mounting plate 2011 is equipped with rollers 5; the pull rod 202 is mounted on the base (201).

[0050] Furthermore, the mounting plate 2011 is provided with a slide rail 20132; the mounting plate 2011 is a hollow plate in the shape of a U-shape, and the hollow part is the slide rail 20132; the telescopic plate 2012 can slide and extend on the slide rail 20132;

[0051] The adaptive device includes a spring, and the limiting device includes a limiting post 12 and a limiting groove 13; the limiting device is used to limit the maximum total width of the mounting plate 2011 and the telescopic plate 2012; and the maximum value can be manually adjusted.

[0052] Furthermore, the telescopic plate 2012 is provided with a waist protection device at the end away from the mounting plate 2011, and the waist protection device includes a waist support groove 10.

[0053] Furthermore, anti-slip components 6 are installed on both sides of the bottom of the telescopic plate 2012.

[0054] Example 2, please refer to Figures 3-5 As shown, the difference between this embodiment and Embodiment 1 is the design of the base structure.

[0055] A towing frame includes a base 201 and a pull rod 202. The base 201 includes a mounting plate 2011, a telescopic plate 2012, and an adaptive adjustment member 2013. The telescopic plate 2012 is slidably connected to the mounting plate 2011.

[0056] The adaptive adjustment component 2013 includes an adaptive device and a limiting device. When subjected to external force, the adaptive device is used to automatically adjust the total width of the mounting plate 2011 and the telescopic plate 2012. When the adaptive device is not subjected to external force, the total width of the mounting plate 2011 and the telescopic plate 2012 does not change.

[0057] The bottom of the mounting plate 2011 is provided with a roller 5; the pull rod 202 is mounted on the bottom support (201).

[0058] Further, the mounting plate 2011 comprises a fixed plate 20111, a connecting plate 20112 and a plurality of support rods 20113, the connecting plate 20112 is mounted on one side of the fixed plate 20111 through the support rods 20113.

[0059] Further, the adaptive adjusting member 2013 comprises a plurality of telescopic rods 20131, the telescopic rods 20131 are sleeved in the support rods 20113, and at least one telescopic rod 20131 is provided with a telescopic device and a limiting device between the telescopic rod 20131 and the support rod 20113.

[0060] Embodiment three, please refer to Figure 2 The technical scheme adopted in the specific embodiment is:

[0061] A back support pad structure comprises a bottom lining 4 and a support pad 7, the support pad 7 is arranged on the bottom lining 4 and protrudes relative to the bottom lining, and is symmetrically distributed on the bottom lining;

[0062] Air flow grooves 8 are arranged between the upper and lower two of the support pad 7, and the opening of the air flow groove 8 close to the spine end is higher than the opening position away from the spine end;

[0063] Exhaust channels 9 are arranged between the left and right two of the support pad 7, and the exhaust channels vertically penetrate the back of the backpack.

[0064] Further, the air flow grooves and the exhaust channels are approximately trapezoidal.

[0065] Further, the back support structure is a one-time molding material, and the outer surface is coated with a flexible breathable material.

[0066] Embodiment four, please refer to Figure 1 and Figure 2 The technical scheme adopted in the specific embodiment is:

[0067] A dragable backpack comprises a backpack body 1 and a drag frame 2, the drag frame 2 comprises a bottom support 201, the bottom support 201 comprises a mounting plate 2011, a telescopic plate 2012 and an adaptive adjusting member 2013; the telescopic plate 2012 is in sliding connection with the mounting plate 2011; the bottom of the mounting plate 2011 is provided with a roller 5;

[0068] The adaptive adjusting member 2013 comprises an adaptive device and a limiting device, the adaptive device is used for automatically adjusting the total width of the mounting plate 2011 and the telescopic plate 2012 when subjected to an external force, and the total width of the mounting plate 2011 and the telescopic plate 2012 does not change when the adaptive device is not subjected to an external force;

[0069] The connecting member 3 is arranged on the bag body 1, and the dragging frame 2 is assembled with the bag body 1 through the connecting member 3.

[0070] Further, the dragging frame 2 further comprises a pull rod 202, the pull rod 202 is installed on the bottom support 201, and the pull rod 202 is arranged on the front or both sides of the bag body 1, and the pull rod is away from the back when being carried.

[0071] Further, the connecting member 3 comprises a sleeving belt 301 and a fastener 302, the sleeving belt 301 is sleeved on the bag body 1 through the fastener 302 to form a ring shape, and the fixing rod 11 arranged on the pull rod 202 is sleeved on the bag body 1.

[0072] Embodiment five, please refer to Figure 1 and Figure 6 The difference between the embodiment and the embodiment four is that there is no pull rod structure design.

[0073] A dragable backpack comprises a bag body 1 and a bottom support 201, the bottom support 201 comprises a mounting plate 2011, a telescopic plate 2012 and a self-adapting adjusting member 2013, the telescopic plate 2012 is slidably connected with the mounting plate 2011, and the mounting plate 2011 is provided with a plurality of wheels 5 at the bottom;

[0074] The self-adapting adjusting member 2013 comprises a self-adapting device and a limiting device, the self-adapting device is used for automatically adjusting the total width of the mounting plate 2011 and the telescopic plate 2012 when being subjected to an external force, and the total width of the mounting plate 2011 and the telescopic plate 2012 does not change when not being subjected to the external force;

[0075] The bag body 1 is provided with a connecting member 3 at the bottom, and the bottom support 201 is assembled with the bag body 1 through the connecting member 3.

[0076] Further, the bag body 1 further comprises a dragging member, the dragging member comprises a handle belt 101 and a handle rod 102, the handle rod 102 is movably sleeved on the handle belt 101, and the handle rod can be locked on the handle belt when a user holds the handle rod and drags the backpack; the handle belt 101 is relatively long, and can facilitate a user to walk straight when dragging the backpack.

[0077] Further, the connecting member 3 comprises a sleeving belt 301 and a fastener 302, the sleeving belt 301 is sleeved on the bag body 1 through the fastener 302 to form a ring shape, and the bottom support 201 is sleeved on the bottom surface of the bag body 1.

[0078] Further, the connecting member 3 comprises a sleeving bag arranged at the bottom of the bag body 1, the sleeving bag can sleeve the bottom support, and a soft pad layer is arranged at a position corresponding to the waist support groove 10.

[0079] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made to it within the knowledge range of ordinary skilled in the art. For example, in the above-mentioned embodiments, the towing frame and the backpack are independent components, which can be used separately or can be assembled to form a complete backpack that can be towed.

[0080] In the utility model, unless another explicit provision and limitation, the terms "mounting", "assembling", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integral; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements. Among them, the detachable mounting mode has many, for example, can be through the way of plug-in and buckle cooperation, again for example, through the way of magic tape, bolt connection and the like.

[0081] The above-mentioned embodiments and the drawings are combined to clearly and completely describe the concept, specific structure and generated technical effects of the utility model, so as to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments of the utility model, the other embodiments obtained by the skilled in the art without creative labor are all within the protection range of the utility model. In addition, all the connection / connection relations mentioned in the text do not mean that the components are directly connected, but can be composed of a better connection structure by adding or reducing the connection auxiliary parts according to the specific implementation situation.

[0082] The above-mentioned embodiments are only used for further illustrating the utility model, and cannot be understood as the limitation of the protection scope of the utility model, and the skilled in the art can make some non-essential improvements and adjustments to the utility model according to the above-mentioned content of the utility model, which falls within the protection scope of the utility model.

Claims

1. A towing frame comprising a base support (201), characterized in that: the base support (201) comprises a mounting plate (2011), a telescopic plate (2012) and an adaptive adjusting member (2013); the telescopic plate (2012) is in sliding connection with the mounting plate (2011); the adaptive adjusting member (2013) comprises an adaptive device and a limiting device, the adaptive device is used to automatically adjust the total width of the mounting plate (2011) and the telescopic plate (2012) when subjected to external force, and the total width of the mounting plate (2011) and the telescopic plate (2012) does not change when not subjected to external force; the bottom of the mounting plate (2011) is provided with a rolling wheel (5).

2. A dolly as claimed in claim 1, characterized in that: a slide (20132) is arranged on the mounting plate (2011); the telescopic plate (2012) can slide on the slide (20132); the adaptive device comprises a spring, and the limiting device comprises a limiting column (12) and a limiting groove (13); the limiting device is used to limit the maximum total width of the mounting plate (2011) and the telescopic plate (2012).

3. A dolly as claimed in claim 1, characterized in that: a waist protection device is arranged at the end of the telescopic plate (2012) away from the mounting plate (2011), and the waist protection device comprises a waist supporting groove (10); the towing frame further comprises a pull rod (202), and the pull rod (202) is mounted on the base support (201).

4. A dolly as claimed in claim 1, characterized in that: the mounting plate (2011) comprises a fixed plate (20111), a connecting plate (20112) and a supporting rod (20113), and the connecting plate (20112) is mounted on one side of the fixed plate (20111) through the supporting rod (20113).

5. A dolly as claimed in claim 4, characterised in that: the adaptive adjusting member (2013) comprises a telescopic rod (20131), the telescopic rod (20131) is sleeved in the supporting rod (20113), and a telescopic device and a limiting device are mounted between the telescopic rod (20131) and the supporting rod (20113).

6. A backrest support pad structure comprising a backing (4) and a support pad (7), characterised in that: the supporting pad (7) is arranged on the bottom lining (4) and protrudes from the bottom lining (4) and is symmetrically distributed on the bottom lining; air flow grooves (8) are arranged between the upper and lower supporting pads (7), and the opening of the air flow grooves (8) close to the spine end is higher than the opening position away from the spine end; exhaust channels (9) are arranged between the left and right supporting pads (7), and the exhaust channels (9) vertically penetrate the back of the backpack.

7. A towable backpack comprising a backpack body (1) and a tow bar (2), characterized in that: the towing frame (2) comprises a base support (201), the base support (201) comprises a mounting plate (2011), a telescopic plate (2012) and an adaptive adjusting member (2013); the telescopic plate (2012) is in sliding connection with the mounting plate (2011); the adaptive adjusting member (2013) comprises an adaptive device and a limiting device, the adaptive device is used to automatically adjust the total width of the mounting plate (2011) and the telescopic plate (2012) when subjected to external force, and the total width of the mounting plate (2011) and the telescopic plate (2012) does not change when not subjected to external force; the bottom of the mounting plate (2011) is provided with a rolling wheel (5). The bag body (1) is provided with a connecting member (3), and the towing frame (2) can be assembled with the bag body (1) through the connecting member (3).

8. A towable backpack as claimed in claim 7, characterized in that: The towing frame (2) further comprises a pull rod (202) mounted on the bottom support (201), and the pull rod (202) is on the front or both sides of the bag body (1), and the pull rod is away from the back when being carried on the back.

9. A towable backpack as claimed in claim 7, characterized in that: The connecting member (3) comprises a sleeving bag provided at the bottom of the bag body (1), the sleeving bag can sleeve the bottom support, and a soft pad layer is covered at the corresponding position of the waist support groove (10).

10. A towable backpack as claimed in claim 7, characterized in that: The bag body (1) has the back supporting pad structure as claimed in claim 6.

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