Backpack adjustment device with shock absorption

Abstract

The utility model relates to a kind of backpack adjusting device with shock absorption, the backpack adjusting device includes matrix I, matrix II, adjusting mechanism, the matrix I is coaxial with matrix II, and the adjusting mechanism connects matrix I;The backpack adjusting device further includes spring, the spring is shock absorption;The matrix I end portion inserts matrix II, and gap cooperation with matrix II, the matrix I end portion hole, the matrix II inner wall is slotted, the hole and the slot form cavity, the spring is axially arranged in cavity, and with cavity adaptation;When adjusting, the adjusting mechanism drives matrix I to move along axial direction, and matrix II moves along axial direction under the action of spring. Spring built-in type installation, without additional increase shell, overall structure is more compact.

Description

Technical Field

[0001] This utility model relates to a backpack adjustment device, specifically a backpack adjustment device with shock absorption. Background Technology

[0002] In the past, backpack adjustment devices that used springs for shock absorption typically had lugs on two coaxially mounted bases, with the spring's two ends hooked onto the lugs on the two bases. To hide (protect) the spring, a shell was designed to encapsulate the spring portion, resulting in a bulky design. Utility Model Content

[0003] In view of the above problems, this utility model proposes a backpack adjustment device with shock absorption.

[0004] The technical solution of this utility model: A backpack adjustment device with shock absorption includes a base I, a base II, and an adjustment mechanism. The base I and base II are coaxial, and the adjustment mechanism is connected to the base I. The backpack adjustment device also includes a spring, which constitutes shock absorption. The end of the base I is inserted into the base II with a clearance fit. The end of the base I has an opening, and the inner wall of the base II has a groove. The opening and groove form a cavity, and the spring is axially disposed in the cavity and adapted to the cavity. During adjustment, the adjustment mechanism drives the base I to move axially, and the base II moves axially along with it under the action of the spring.

[0005] Further refining the above technical solution, the end of the substrate I is flat.

[0006] Further refining the above technical solution, the cavity is a cylindrical cavity.

[0007] To further refine the above technical solution, the groove includes groove A and groove B, which are located on both sides of the hole.

[0008] To further refine the above technical solution, there are two springs and two cavities, arranged side by side, with the two springs respectively disposed within the two cavities.

[0009] Further refining the above technical solution, the adjustment mechanism is composed of a knob connected to a gear and a rack.

[0010] Previously, the markings (including the logo) were directly designed on the knob. When the knob was rotated, the markings (including the logo) would rotate with it, resulting in misalignment. To address this, the above technical solution is further improved by making the knob hollow, with the markings (including the logo) set in the hollow part of the knob. The markings (including the logo) are connected to the knob base and fit with the knob with a clearance. When the knob is rotated, the markings (including the logo) can remain stationary.

[0011] To further refine the above technical solution, the connecting part of the label is inserted into the groove on the knob base, and the connecting part of the label matches and fits into the groove on the knob base.

[0012] To further refine the above technical solution, the connecting part of the mark is a cylindrical boss, and an anti-rotation limit is provided between it and the groove provided on the knob seat.

[0013] To further refine the above technical solution, the cylindrical boss has two flat surfaces on both sides, which constitute an anti-rotation limit.

[0014] The advantage of this invention is that the spring is built-in, eliminating the need for an additional outer shell, resulting in a more compact overall structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the adjustment device for a backpack with shock absorption.

[0016] Figure 2 This is a partial structural diagram of a backpack adjustment device with shock absorption.

[0017] Figure 3 This is a schematic diagram of the matrix I structure.

[0018] Figure 4 This is a schematic diagram (half) of the matrix II structure.

[0019] Figure 5 This is a diagram illustrating the connection of the identifiers.

[0020] In the figure, there are: 1. Base I, 1-1 hole; 2. Base II, 2-2 groove A, 2-3 groove B; 3. Adjustment mechanism, 3-1 knob, 3-3 rack, 3-4 knob seat; 4. Spring; 5. Cavity; 6. Marker; 7. Cylindrical boss; 8. Plane; 9. Groove. Detailed Implementation

[0021] like Figure 1-5The following describes a backpack adjustment device with shock absorption. The device includes a base I1, a base II2, and an adjustment mechanism 3. Base I1 and base II2 are coaxial, and the adjustment mechanism 3 is connected to base I1. The device also includes two springs 4, which together form the shock absorber. Base I1 has a flat end, which is inserted into base II2 with a clearance fit. Base I1 has a hole 1-1 at its end, and base II2 has grooves A 2-1 and B 2-2 on its inner wall. Grooves A 2-1 and B 2-2 are located on either side of hole 1-1. Hole 1-1 and grooves A 2-1 and B 2-2 are located on either side of groove A 2-1. 2-2 forms two cylindrical cavities 5, which are arranged side by side. Two springs 4 are axially arranged in the two cylindrical cavities 5 respectively, and the springs 4 are adapted to the cylindrical cavities 5. The adjustment mechanism 3 is composed of a knob 3-1 connected to a gear and rack 3-3. The knob 3-1 is hollow, and the hollow part of the knob 3-1 is provided with a mark 6 (including a logo). The mark 6 (including a logo) is connected to the knob seat 3-4 and is in clearance fit with the knob 3-1. The connecting part of the mark 6 is a cylindrical boss 7. The cylindrical boss 7 has two flat surfaces 8 on both sides. The cylindrical boss 7 is inserted into the groove 9 on the knob seat 3-4. The cylindrical boss 7 and the groove 9 are matched and fitted. The flat surfaces 8 form a stop limit.

[0022] When in use, the shock-absorbing backpack adjustment device is installed on the backpack and centered, with base II2 on top and base I1 on the bottom, and the backpack shoulder straps are connected to base II2. When adjusting, rotate knob 3-1, which drives base I1 to move up and down through gears and racks 3-3, and base II2 moves up and down accordingly under the action of spring 4.

[0023] The above embodiments are only for illustrating the technical concept and features of the utility model, and are intended to enable those skilled in the art to understand the content of the utility model and implement it accordingly. They should not be construed as limiting the scope of protection of the utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the utility model should be covered within the scope of protection of the utility model.

Claims

1. A backpack adjustment device with shock absorption, the backpack adjustment device comprising a base I, a base II, and an adjustment mechanism, wherein the base I and base II are coaxial, and the adjustment mechanism is connected to the base I; the backpack adjustment device further comprises a spring, wherein the spring constitutes shock absorption; characterized in that, The end of the base I is inserted into the base II and is clearance-fitted with the base II. The end of the base I has an opening, and the inner wall of the base II has a groove. The opening and the groove form a cavity. The spring is axially disposed in the cavity and is adapted to the cavity. During adjustment, the adjustment mechanism drives the base I to move axially, and the base II moves axially along with it under the action of the spring.

2. The backpack adjustment device with shock absorption according to claim 1, characterized in that, The end of the substrate I is flat.

3. The backpack adjustment device with shock absorption according to claim 2, characterized in that, The cavity is a cylindrical cavity.

4. The backpack adjustment device with shock absorption according to claim 1, characterized in that, The groove includes groove A and groove B, which are located on both sides of the hole.

5. A backpack adjustment device with shock absorption according to claim 1, characterized in that, There are two springs and two cavities, which are arranged side by side, with the two springs respectively installed in the two cavities.

6. A backpack adjustment device with shock absorption according to claim 1, characterized in that, The adjustment mechanism consists of a knob connected to a gear and a rack.

7. A backpack adjustment device with shock absorption according to claim 6, characterized in that, The knob is hollow, and a mark is provided on the hollow part of the knob. The mark is connected to the knob base and fits with the knob with a clearance.

8. A backpack adjustment device with shock absorption according to claim 7, characterized in that, The connecting part of the label is inserted into the groove provided on the knob base, and the connecting part of the label is matched and fitted into the groove provided on the knob base.

9. A backpack adjustment device with shock absorption according to claim 8, characterized in that, The connecting part of the mark is a cylindrical boss, and a rotation-stopping limit is provided between it and the groove provided on the knob seat.

10. A backpack adjustment device with shock absorption according to claim 9, characterized in that, The cylindrical boss has two flat surfaces on both sides, which constitute an anti-rotation limit.

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