Connecting piece and backpack

Abstract

The connecting piece is arranged at the top of a backpack and comprises a first assembly and a second assembly which are oppositely arranged, the first assembly comprises a first rotating shaft and a plurality of first rotating holes formed in the transverse direction, the first rotating shaft comprises a first rod body, and the first rod body can sequentially penetrate through a first shoulder strap and any first rotating hole; the second assembly comprises a second rotating shaft and a plurality of second rotating holes formed in the transverse direction, the second rotating shaft comprises a second rod body, the second rod body can sequentially penetrate through the second shoulder strap and any second rotating hole, the position of the first rod body can be switched among the multiple first rotating holes, and the position of the second rod body can be switched among the multiple second rotating holes. The distance between the first shoulder strap and the second shoulder strap is adjusted. The connecting piece can reduce the traction resistance of a shoulder backpack during movement, so that the shoulders are uniformly stressed, and the problems of high and low shoulders and scoliosis can be solved.

Description

Technical Field

[0001] This utility model relates to the field of backpack technology, and in particular to a connector and a backpack containing the connector. Background Technology

[0002] A backpack is a common tool for carrying items, making it convenient for people to carry their essentials while traveling, going to school, exercising, or in daily life. It is usually made of durable materials such as nylon, canvas, or leather and is equipped with shoulder straps for easy carrying. Backpacks come in various types and styles, including double-shoulder backpacks, single-shoulder backpacks, and waist packs. Double-shoulder backpacks, as an important type of backpack, are widely popular for their ability to evenly distribute weight. The main feature of this type of backpack is that it has two shoulder straps, which can be hung on each shoulder separately, allowing the weight of the backpack to be evenly distributed on the back and shoulders, thereby reducing pressure on the spine and providing a more comfortable wearing experience.

[0003] Currently, the shoulder straps on both sides of backpacks are connected to the bag body via fixed stitching. This fixed stitching design typically embeds the shoulder strap material directly into or tightly adheres to the top edge of the backpack, using high-strength thread for multiple back-and-forth stitching to ensure the shoulder straps can withstand sufficient tension and are not prone to tearing or detachment. However, due to its fixed nature, once production is complete, the position and angle of the shoulder straps relative to the backpack are fixed and cannot be personalized to the user's needs. For people of different ages, heights, and body types, this can result in the shoulder straps not fitting to individual requirements. For example, a thinner person may find the shoulder straps too wide, while a heavier person may find them too tight. This mismatch can lead to discomfort and ineffective weight distribution.

[0004] Specifically, because the shoulder straps are fixed in position, they cannot naturally bend with the body. This means the weight of the backpack is not evenly distributed on both shoulders, but may be biased to one side or concentrated in a small area of ​​the shoulder. Such a design can easily cause excessive local pressure, increasing the risk of muscle strain and potentially affecting spinal health in the long run. Moreover, when the shoulder straps are fixed in a specific position, they cannot flexibly adjust their angle with the person's movements, especially when walking, running, or engaging in strenuous exercise, where the backpack needs to move naturally with the body. However, fixed, sewn shoulder straps restrict this process, making the person feel restricted and potentially causing injury due to accidental pulling.

[0005] Especially for growing children and teenagers, the fixed-stitched backpack shoulder strap design cannot fine-tune the center of gravity, which increases the impact on the spine and causes uneven weight distribution of the backpack. This not only increases the burden on the wearer, but may also force them to adopt poor posture to compensate for the unbalanced weight distribution. Using a backpack that is not suitable for one's body shape for a long time can have a negative impact on spinal development.

[0006] Therefore, the current method of connecting backpack shoulder straps has the disadvantage of not being able to adjust the shoulder strap angle, resulting in an unreasonable distribution of pressure on the backpack, which in turn affects the health of the human spine. Utility Model Content

[0007] The purpose of this utility model is to provide a connector and a backpack containing the connector. By forming a movable connection between the pivot on the connector and multiple pivot holes, the shoulder straps connected to the pivot can rotate relative to the backpack body, and the spacing of the shoulder straps can be adjusted, thereby improving the fit and comfort of the backpack. The specific technical solution is as follows:

[0008] A connector, disposed at the top of a backpack, includes a first component and a second component disposed opposite to each other. The first component includes a first pivot and a plurality of first pivot holes arranged laterally. The first pivot includes a first rod that can be sequentially passed through a first shoulder strap and any one of the first pivot holes. The second component includes a second pivot and a plurality of second pivot holes arranged laterally. The second pivot includes a second rod that can be sequentially passed through a second shoulder strap and any one of the second pivot holes. The first rod can switch positions among the plurality of first pivot holes, and the second rod can switch positions among the plurality of second pivot holes to adjust the distance between the first shoulder strap and the second shoulder strap.

[0009] Furthermore, the first component also includes a first shifting hole, which is located on the side of the first rotating hole away from the human shoulder and is connected to the first rotating hole so that the first rod can move along the first shifting hole to different first rotating holes.

[0010] Furthermore, the first rotating hole includes a first channel, and the first repositioning hole is connected to the first rotating hole through the first channel. The width of the first channel is a first length, the diameter of the first rotating hole is a second length, and the diameter of the first rod is a third length. The first length is less than the second length and the first length is greater than the third length.

[0011] Furthermore, the first rotating shaft also includes a first limiting part and a second limiting part disposed opposite to both ends of the rod body. The outer diameter of the first limiting part and the second limiting part are both greater than the diameter of the first rotating hole, so as to limit the displacement of the first rod body in the first rotating hole along the axial direction of the first rod body.

[0012] Furthermore, the first component also includes a first fixing hole, which is located near the top of the backpack.

[0013] Furthermore, it also includes a first sidewall, which is located on the side close to the first rotating hole. Multiple continuous arc-shaped structures are provided on the first sidewall, and the arc-shaped structures are provided one-to-one with the outer edge of the first rotating hole.

[0014] Furthermore, the first and second components are configured as separate structures.

[0015] Furthermore, it also includes a connecting part, through which the first component and the second component are connected.

[0016] Furthermore, a groove is provided on the connecting part, and the opening direction of the groove corresponds to the direction of the extension of the human spine.

[0017] A backpack including the above-mentioned connectors.

[0018] The connector of this utility model, and the backpack containing the connector, have the following advantages:

[0019] 1. By setting the connector and shoulder straps to a rotatable connection, and the multiple swivel holes on the connector to adjust the distance between the two shoulder straps, the carrying angle of the shoulder straps can be freely adjusted according to the user's posture and usage, thereby meeting the needs of different body types and shoulder widths, achieving a more comfortable carrying effect. At the same time, it reduces the pulling resistance of the backpack on the shoulders during activities, making the force on both shoulders even, which helps to improve uneven shoulders and scoliosis.

[0020] 2. The first shifting hole and the first rotating hole on the first component are connected to each other so that the first rod can be moved from one first rotating hole to another first rotating hole along the first shifting hole, thereby realizing quick adjustment of the shoulder strap width and improving ease of use;

[0021] 3. The first shifting hole is connected to the first rotating hole through the first channel. The lateral width of the first channel is smaller than the diameter of the circular first rotating hole and larger than the diameter of the first rod body, so as to avoid user misoperation or the first rod body accidentally coming out of the first rotating hole during the movement, thereby enhancing the connection stability and safety between the shoulder strap and the connector. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the backpack of this utility model.

[0023] Figure 2 This is a schematic diagram showing the connection status of the two ends of the connector of this utility model with the backpack and shoulder strap.

[0024] Figure 3 This is a schematic diagram of the connector of this utility model having a split structure.

[0025] Figure 4 This is a three-dimensional schematic diagram of the first component in the connector of this utility model.

[0026] Figure 5 This is a schematic diagram of the connector of this utility model having an integrated structure. Detailed Implementation

[0027] To better understand the purpose, structure, and function of this utility model, the connecting parts of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 5 As shown, the backpack has two shoulder straps. A connector 100 is located at the top of the backpack. One end of the connector 100 is fixedly connected to the backpack body 200, and the other end is movably connected to one end of the shoulder strap. The connector 100 and the shoulder strap are rotatably connected to allow the carrying angle of the shoulder strap to be freely adjusted according to the user's posture and usage. The distance between the connection points of the two shoulder straps and the connector 100 is also adjustable, thereby meeting the needs of different body types and shoulder widths and achieving a more comfortable carrying effect. At the same time, it reduces the pulling resistance of the backpack on the shoulders during activities, making the force on both shoulders even, which helps to improve uneven shoulders and scoliosis.

[0029] It should be noted that when the direction of the line connecting the two shoulders is defined as horizontal when the human body carries the backpack on the shoulder, the connector 100 includes a first component 101 and a second component 102. The structures of the first component 101 and the second component 102 are arranged horizontally symmetrically with the center line of the backpack as the axis. Therefore, the specific structure of the connector 100 described below mainly describes the first component 101, and the specific structure of the second component 102 will not be described again.

[0030] Specifically, such as Figures 2 to 4 As shown, the first component 101 and the second component 102 are arranged laterally opposite to each other. The first component 101 includes a first pivot 103 and two first pivot holes 105 arranged laterally. The first pivot 103 includes a first rod 104, which can be sequentially inserted into the first shoulder strap 301 and any one of the first pivot holes 105. The second component 102 includes a second pivot and two second pivot holes 106 arranged laterally. The second pivot (not shown in the figure) includes a second rod, which can be inserted into the first shoulder strap 301 and any one of the first pivot holes 105. The first shoulder strap 301 and the second shoulder strap 302 are then inserted into any one of the second pivot holes 106. The first shoulder strap 301 and the second shoulder strap 302 can then rotate about the first rod 104 and the second rod 106 respectively, forming a rotation angle of 0 to 180 degrees between the two ends in the lateral direction. At the same time, by changing the pivot hole through which the pivot passes, that is, by adjusting the distance between the first pivot 103 and the second pivot, the distance between the connection between the first shoulder strap 301 and the top of the backpack, and the connection between the second shoulder strap 302 and the top of the backpack can be adjusted.

[0031] The purpose of the above structure is, based on the principles of mechanical balance and ergonomics, to better fit the shoulder shapes of different users by adjusting the angle of the shoulder straps, reducing discomfort caused by prolonged carrying. In addition, as the user's body angle changes during movement, the shoulder straps can naturally change angle with the body's movement, reducing shoulder strap friction or pressure caused by body activity. On the other hand, if the shoulder strap spacing is too narrow, the shoulder straps are prone to pulling inward and pressing on the neck, while if it is too wide, the shoulder straps may sag outward and become unstable. By adjusting the spacing between the first shoulder strap 301 and the second shoulder strap 302, the shoulder straps are prevented from slipping or pressing on the shoulders, allowing the shoulder straps to hang naturally above the shoulders. This helps to align the backpack's center of gravity with the human spine, distributing the force evenly on both shoulders and reducing tilting or swaying caused by unilateral force. As a result, the backpack better adapts to the human body shape and movement, improving the backpack's fit and carrying comfort, and has a beneficial effect on correcting problems such as uneven shoulders and scoliosis.

[0032] It should be noted that the gap 120 between the first component 101 and the second component 102 corresponds to the human spine. The purpose of setting the connector 100 as a left-right split structure is that the split design allows the shoulder straps to move independently to a certain extent, which can better adapt to the body's movements and provide a more natural wearing experience. In addition, since the shoulder straps can fit the shape and movement of the shoulders more closely, this design helps to distribute the weight and reduce discomfort when carrying for a long time. This is especially true for people who need to carry heavy objects for a long time, such as hikers, mountaineers and other outdoor enthusiasts, or people who need to perform frequent large-scale body movements (such as climbing and running). The split structure can provide greater freedom and comfort.

[0033] Furthermore, the first component 101 also includes an elongated first shift hole 107. The first shift hole 107 is located on the side of the first rotating hole 105 away from the human shoulder and is connected to the first rotating hole 105. Thus, the first rod 104 can be moved from one first rotating hole 105 to another first rotating hole 105 along the first shift hole 107, realizing quick adjustment of the shoulder strap width and improving ease of use.

[0034] Furthermore, such as Figure 3 and Figure 4As shown, the first rotating hole 105 includes a first channel 108, and a first shifting hole 107 communicates with the first rotating hole 105 through the first channel 108. The lateral width of the first channel 108 is a first length, the diameter of the circular first rotating hole 105 is a second length, and the diameter of the first rod 104 is a third length. The first length is less than the second length and greater than the third length, so that when the first rod 104 enters the first shifting hole 107 from the first rotating hole 105, it is partially limited in the lateral direction by the first channel 108. This prevents user misoperation or accidental dislodgement of the first rod 104 from the first rotating hole 105 during movement, thus enhancing the connection stability and safety between the shoulder strap and the connector 100. The first channel 108 can be either an opening structure on the first rotating hole 105 or a channel structure of a certain length; those skilled in the art can configure it according to the actual situation.

[0035] Preferably, the first rotating shaft 103 further includes a first limiting part 109 and a second limiting part 110 disposed opposite to both ends of the rod. The maximum width of the first limiting part 109 and the second limiting part 110 in the direction perpendicular to the first rod 104 is defined as their outer diameter width. Then, the outer diameter width of the first limiting part 109 and the second limiting part 110 is greater than the diameter of the first rotating hole 105. In this embodiment, the first limiting part 109 and the second limiting part 110 are configured as a disc structure. The diameter of the disc structure is greater than the diameter of the first rotating hole 105, thereby limiting the displacement of the first rod 104 in the first rotating hole 105 along the axial direction of the first rod 104, so as to prevent the first rod 104 in the first rotating hole 105 from moving along its axial direction and coming out, and further improving the stability of the connection between the connector 100 and the shoulder strap.

[0036] Furthermore, at least one of the first limiting part 109 and the second limiting part 110 is movably connected to the first rod body 104. In this embodiment, the first limiting part 109 is screwed to one end of the first rod body 104, and the second limiting part 110 is integrally formed with the other end of the first rod body 104 to enhance the structural strength of the rotating shaft and facilitate the assembly and processing between the rotating shaft and the shoulder strap.

[0037] Preferably, the first component 101 further includes a first fixing hole 111. The first fixing hole 111 and the first rotating hole 105 are disposed on opposite sides of the first repositioning hole 107. That is, the first fixing hole 111 is disposed near the top of the backpack. The fixing strap can be passed through the first fixing hole 111 and then the two ends of the fixing strap are sewn to the top of the backpack to achieve stability in the connection between the rigid first component 101 and the soft backpack body 200.

[0038] Preferably, the first component 101 has a first sidewall 112 on its top, that is, the outer edge of the first sidewall 112 is located on the side close to the first rotating hole 105. Two continuous arc-shaped structures are provided on the first sidewall 112, and the arc-shaped structures are provided one-to-one with the outer edge of the first rotating hole 105, so as to reduce the stress concentration when the first sidewall 112 comes into contact with the human body, avoid damage caused by the connector 100 coming into contact with the human body during movement, improve the safety of the connector 100, and at the same time reduce the weight and material usage of the connector 100, thereby improving the portability and economy of the connector 100.

[0039] Furthermore, such as Figure 5 As shown, it also includes a connecting part 113. The first component 101 and the second component 102 are connected through the connecting part 113. That is, the first component 101 and the second component 102 are set as an integrated structure. On the one hand, the connector 100 as a whole has higher structural integrity and durability, and can withstand greater tension and pressure without being easily damaged. On the other hand, the integrated structure is more suitable for users who do not often participate in strenuous sports or do not need a highly flexible shoulder strap design for daily commuting, city travel, or going to school.

[0040] Preferably, a groove 114 is provided on the connecting part 113, and the opening direction of the groove 114 is set to correspond to the direction of the extension of the human spine, so as to reduce the pressure of the connecting part 113 on the human spine and enhance the comfort when carrying the backpack. In this embodiment, the opening of the groove 114 is set to face the direction of the human head. Those skilled in the art can also set the opening of the groove 114 to face the direction of the human feet according to actual needs.

[0041] This utility model also provides a backpack, including the connector 100 described above.

[0042] The connector of this utility model, and the backpack containing the connector, have the following advantages:

[0043] 1. By setting the connector and shoulder straps to a rotatable connection, and the multiple swivel holes on the connector to adjust the distance between the two shoulder straps, the carrying angle of the shoulder straps can be freely adjusted according to the user's posture and usage, thereby meeting the needs of different body types and shoulder widths, achieving a more comfortable carrying effect. At the same time, it reduces the pulling resistance of the backpack on the shoulders during activities, making the force on both shoulders even, which helps to improve uneven shoulders and scoliosis.

[0044] 2. The first shifting hole and the first rotating hole on the first component are connected to each other so that the first rod can be moved from one first rotating hole to another first rotating hole along the first shifting hole, thereby realizing quick adjustment of the shoulder strap width and improving ease of use;

[0045] 3. The first shifting hole is connected to the first rotating hole through the first channel. The lateral width of the first channel is smaller than the diameter of the circular first rotating hole and larger than the diameter of the first rod body, so as to avoid user misoperation or the first rod body accidentally coming out of the first rotating hole during the movement, thereby enhancing the connection stability and safety between the shoulder strap and the connector.

[0046] The terms “above,” “below,” and “within” as used above include the number itself; the terms “exceeding” and “excluding” do not include the number itself.

[0047] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0048] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

Claims

1. A connector disposed at the top of a backpack, characterized in that, The device includes a first component and a second component arranged opposite to each other. The first component includes a first pivot and a plurality of first pivot holes arranged laterally. The first pivot includes a first rod that can be sequentially inserted into a first shoulder strap and any one of the first pivot holes. The second component includes a second pivot and a plurality of second pivot holes arranged laterally. The second pivot includes a second rod that can be sequentially inserted into a second shoulder strap and any one of the second pivot holes. The first rod can switch positions among the plurality of first pivot holes, and the second rod can switch positions among the plurality of second pivot holes to adjust the distance between the first shoulder strap and the second shoulder strap.

2. The connector as described in claim 1, characterized in that, The first component also includes a first shifting hole, which is located on the side of the first rotating hole away from the human shoulder and is connected to the first rotating hole so that the first rod can move along the first shifting hole to different first rotating holes.

3. The connector as described in claim 2, characterized in that, The first rotating hole includes a first channel, and the first transposition hole is connected to the first rotating hole through the first channel. The width of the first channel is a first length, the diameter of the first rotating hole is a second length, and the diameter of the first rod is a third length. The first length is less than the second length and the first length is greater than the third length.

4. The connector as described in any one of claims 1 to 3, characterized in that, The first rotating shaft also includes a first limiting part and a second limiting part disposed opposite to each other at both ends of the rod body. The outer diameter of the first limiting part and the second limiting part is greater than the diameter of the first rotating hole, so as to limit the displacement of the first rod body in the first rotating hole along the axial direction of the first rod body.

5. The connector as described in any one of claims 1 to 3, characterized in that, The first component also includes a first fixing hole, which is located near the top of the backpack.

6. The connector as described in any one of claims 1 to 3, characterized in that, It also includes a first sidewall, which is located on the side close to the first rotating hole. Multiple continuous arc-shaped structures are provided on the first sidewall, and the arc-shaped structures are provided one-to-one with the outer edge of the first rotating hole.

7. The connector as described in any one of claims 1 to 3, characterized in that, The first and second components are designed as separate structures.

8. The connector as described in any one of claims 1 to 3, characterized in that, It also includes a connecting part, through which the first component and the second component are connected.

9. The connector as claimed in claim 8, characterized in that, A groove is provided on the connecting part, and the opening direction of the groove corresponds to the direction of the extension of the human spine.

10. A backpack, characterized in that, The connector includes any one of claims 1 to 9 above.

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