A linear motion energy storage and shock absorption mechanism

Abstract

The present invention discloses a linear motion energy storage and shock absorption mechanism, which includes a sliding base, a retaining sleeve, a fixed rack, a gear, and a sliding rack. The sliding base is slidably connected to the housing, the retaining sleeve is fixedly connected to the sliding base, the gear is connected to the retaining sleeve and moves synchronously with the retaining sleeve, the front end of the fixed rack is fixedly connected to the front end limiting mechanism, the fixed rack and the sliding rack are respectively arranged on both sides of the gear and are both meshed with the gear, the fixed rack and the sliding rack are both slidably connected to the retaining sleeve, and a counterweight is provided on the sliding rack. The present invention has a reasonable structure and utilizes the principle of conservation of momentum. The spring drives the output member to form an impact moment, and an impulse in the opposite direction of the recoil force is generated through the sliding rack and the counterweight, thereby offsetting a part of the recoil force. The heavier the counterweight, the greater the impulse it generates, the greater the recoil force offset, and the smaller the recoil force acting on the system body, thereby achieving a shock absorption effect.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage, and in particular to a linear motion energy storage and shock absorption mechanism. Background Art

[0002] Energy storage mechanisms are commonly used in transmission systems to provide a quick release of spring energy. When the energy storage mechanism releases energy, the moment the spring drives the output component to create an impact, the system itself experiences a significant recoil force. If this recoil force is not eliminated, it will directly act on the user through the system itself, affecting the product experience and even risking injury. Therefore, this issue urgently needs to be addressed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a linear motion energy storage and shock absorption mechanism with a reasonable structure, the ability to offset part of the recoil force, and high safety. The present invention adopts the following technical solutions:

[0004] In order to solve the above problems, the present invention provides a linear motion energy storage and shock absorption mechanism, which includes a sliding base, a retaining sleeve, a fixed rack, a gear, and a sliding rack. The sliding base is slidably connected to the shell, the retaining sleeve is fixedly connected to the sliding base, the two sides of the retaining sleeve are respectively connected to the front end limit mechanism and the rear end drive mechanism through an energy storage spring, the gear is connected to the retaining sleeve and moves synchronously with the retaining sleeve, the front end of the fixed rack is fixedly connected to the front end limit mechanism, the fixed rack and the sliding rack are respectively provided on both sides of the gear and are both meshed with the gear, the fixed rack and the sliding rack are both slidably connected to the retaining sleeve, and a counterweight is provided on the sliding rack;

[0005] When the front-end limiting mechanism is released, the energy storage spring is decompressed and drives the output member. The recoil force received by the output member during the collision causes the energy storage spring to be re-compressed. The compressed energy storage spring can drive the sliding rack and the gear to move toward the front end relative to the fixed rack. During the movement, the sliding rack and the counterweight will generate an impulse in the opposite direction of the recoil force, thereby offsetting part of the recoil force.

[0006] As a further improvement of the present invention, both the fixed rack and the sliding rack are provided with a sliding groove, and the retaining sleeve is provided with a retaining pin that cooperates with the sliding groove, and the retaining pin can slide in the sliding groove.

[0007] As a further improvement of the present invention, the number of retaining pins cooperating with each slide groove is two, and the distance between the two retaining pins in each slide groove is smaller than the length of the slide groove.

[0008] As a further improvement of the present invention, the sliding groove is a waist-shaped groove.

[0009] As a further improvement of the present invention, the counterweight is fixed to the end of the sliding rack.

[0010] As a further improvement of the present invention, the gear shaft of the gear is rotatably connected to the retaining sleeve via a bearing.

[0011] As a further improvement of the present invention, the gear is a spur gear.

[0012] As a further improvement of the present invention, the retaining sleeve is connected to the sliding base via bolts.

[0013] Beneficial effects of the present invention:

[0014] The linear motion energy storage and shock absorption mechanism of this invention features a rational structure. Utilizing the principle of conservation of momentum, a spring drives the output member to create an impact. The sliding rack and counterweight generate an impulse in the opposite direction of the recoil force, thereby offsetting a portion of the recoil force. The heavier the counterweight, the greater the impulse it generates, the greater the recoil force offset, and the smaller the recoil force acting on the system itself, thus achieving a shock absorption effect.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the linear motion energy storage and shock absorption mechanism in state 1 in a preferred embodiment of the present invention;

[0017] Figure 2 yes Figure 1 Cross-section along AA;

[0018] Figure 3 Schematic diagram of the linear motion energy storage and shock absorption mechanism in state 2 in a preferred embodiment of the present invention.

[0019] Marking instructions: 100, housing; 1, energy storage spring; 2, front end limit mechanism; 10, sliding base; 20, retaining sleeve; 21, retaining pin; 30, fixed rack; 31, slide groove; 40, gear; 41, gear shaft; 50, sliding rack; 60, counterweight. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0021] like Figure 1-3 1 is a linear motion energy storage and shock absorption mechanism in a preferred embodiment of the present invention, which includes a sliding base 10 , a retaining sleeve 20 , a fixed rack 30 , a gear 40 , and a sliding rack 50 .

[0022] The sliding base 10 is slidably connected to the housing 100, the retaining sleeve 20 is fixedly connected to the sliding base 10, the two sides of the retaining sleeve 20 are respectively connected to the front end limiting mechanism 2 and the rear end driving mechanism through the energy storage spring 1, the gear 40 is connected to the retaining sleeve 20 and moves synchronously with the retaining sleeve 20, the front end of the fixed rack 30 is fixedly connected to the front end limiting mechanism 2, the fixed rack 30 and the sliding rack 50 are respectively arranged on both sides of the gear 40 and are both engaged with the gear 40, the fixed rack 30 and the sliding rack 50 are both slidably connected to the retaining sleeve 20, and a counterweight 60 is provided on the sliding rack 50.

[0023] When the front-end limiting mechanism 2 is released, the energy storage spring 1 is decompressed and drives the output member. The recoil force received by the output member during the collision causes the energy storage spring 1 to be re-compressed. The compressed energy storage spring 1 can drive the sliding rack 50 and the gear 40 to move toward the front end relative to the fixed rack 30. During the movement, the sliding rack 50 and the counterweight 60 will generate an impulse in the opposite direction of the recoil force, thereby offsetting part of the recoil force.

[0024] In some embodiments, both the fixed rack 30 and the sliding rack 50 are provided with a slide groove 31, and the retaining sleeve 20 is provided with a retaining pin 21 that cooperates with the slide groove 31 and can slide within the slide groove 31. Optionally, the number of retaining pins 21 that cooperate with each slide groove 31 is two, and the distance between the two retaining pins 21 in each slide groove 31 is less than the length of the slide groove 31, ensuring that the retaining pin 21 can slide relative to the slide groove 31. Furthermore, the slide groove 31 is a waist-shaped groove.

[0025] The linear motion energy storage and shock absorption mechanism of the present invention is built into the power storage mechanism, thereby greatly saving the overall volume of the product.

[0026] In some embodiments, the counterweight 60 is fixed to the end of the sliding rack 50 .

[0027] In some embodiments, the gear shaft 41 of the gear 40 is rotatably connected to the retaining sleeve 20 via a bearing. While ensuring that the gear 40 and the retaining sleeve 20 perform synchronous linear motion, the gear 40 can rotate relative to the retaining sleeve 20.

[0028] Optionally, the gear 40 is a spur gear 40 , and the fixed rack 30 and the sliding rack 50 are both spur racks.

[0029] Optionally, the retaining sleeve 20 is connected to the sliding base 10 by bolts, ensuring the stability of the structure while being detachable.

[0030] like Figure 2 As shown, optionally, the sliding base 10 and the retaining sleeve 20 are both annular structures, the retaining sleeve 20 is arranged inside the sliding base 10, and the fixed rack 30, the gear 40, and the sliding rack 50 are all arranged inside the retaining sleeve 20. This ensures the balance of radial force and further ensures the stability of the structure.

[0031] Figure 1 Schematic diagram of the linear motion energy storage and shock absorption mechanism of the present invention when the spring is in state 1 (free state); Figure 3 This is a schematic diagram of the linear motion energy storage and shock absorption mechanism of the present invention when the spring is in state two (ultimate compression state). It can be seen that when the spring is in the free state to the ultimate compression state, the sliding base 10 and the retaining sleeve 20 drive the gear 40 to move toward the front end relative to the fixed rack 30. At this time, the gear 40 is displaced X relative to the fixed rack 30, and the sliding rack 50 is displaced 2X relative to the fixed rack 30. The retaining pin in the fixed rack 30 moves from the end of the slide groove to the front end, and the retaining pin in the sliding rack 50 moves from the front end of the slide groove to the end.

[0032] During operation, when the front-end limiting mechanism 2 is released, the energy storage spring 1 is decompressed and drives the output member to move forward. The recoil force generated at the moment the output member hits the force-bearing object causes the energy storage spring 1 to be re-compressed. The compressed energy storage spring 1 can drive the sliding rack 50 and the gear 40 to move toward the front end relative to the fixed rack 30. During the movement, the sliding rack 50 and the counterweight 60 will generate an impulse in the opposite direction of the recoil force, thereby offsetting part of the recoil force.

[0033] The linear motion energy storage and shock absorption mechanism of this invention features a rational structure. Utilizing the principle of conservation of momentum, a spring drives the output member to create an impact. The sliding rack and counterweight generate an impulse in the opposite direction of the recoil force, thereby offsetting a portion of the recoil force. The heavier the counterweight, the greater the impulse it generates, the greater the recoil force offset, and the smaller the recoil force acting on the system itself, thus achieving a shock absorption effect.

[0034] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A linear motion energy storage and shock absorption mechanism, characterized in that: The cam is connected to the outer shell and the outer shell by a fixed gear, and the fixing gear is fixedly connected to the fixing gear of the fixing gear. The fixing gear is connected to the fixing gear and the fixing gear moves synchronously with the fixing gear. The fixing gear and the fixing gear are respectively arranged on both sides of the fixing gear and mesh with the gear. The fixing gear and the sliding gear are both connected to the fixing sleeve and mesh with the gear. A counterweight is provided on the sliding gear. When the front-end limiting mechanism is released, the energy storage spring is decompressed and drives the output member. The recoil force applied to the output member during the collision causes the energy storage spring to be re-compressed. The compressed energy storage spring can drive the sliding rack and the gear to move toward the front end relative to the fixed rack. During the movement, the sliding rack and the counterweight will generate an impulse in the opposite direction to the recoil force, thereby offsetting a portion of the recoil force. The fixed rack and the sliding rack are both provided with a sliding groove, and the retaining sleeve is provided with a retaining pin that cooperates with the sliding groove, and the retaining pin can slide in the sliding groove.

2. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The number of retaining pins matched with each sliding slot is two, and the distance between the two retaining pins in each sliding slot is smaller than the length of the sliding slot.

3. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The sliding groove is a waist-shaped groove.

4. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The counterweight is fixed to the end of the sliding rack.

5. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The gear shaft of the gear is rotatably connected to the retaining sleeve through a bearing.

6. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The gear is a spur gear.

7. The linear motion energy storage and shock absorption mechanism according to claim 1, characterized in that: The retaining sleeve is connected to the sliding base through bolts.

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