Transmission shaft buffer mechanism for baby carriage

Abstract

The utility model relates to the field of buggies, and discloses a transmission shaft buffer mechanism for a buggy, which comprises a buffer sleeve, the buffer sleeve is movably arranged at the top end of a sleeve body, a buffer column is fixed at the bottom end of the buffer sleeve, the buffer column is inserted in the sleeve body in a sliding manner, and the buffer column is fixed at the bottom end of the buffer sleeve. A telescopic spline shaft is arranged at the top end of the buffer sleeve, a buffer spring is fixed to the bottom face in the sleeve body, a rubber sleeve is detachably arranged between the sleeve body and the buffer sleeve, and two mounting rings are fixed to the interior of the rubber sleeve; and the two mounting rings are detachably arranged outside the buffer sleeve and the sleeve body respectively. According to the utility model, the buffer spring is matched with the rubber sleeve for use, so that the impact force is better reduced, the stability of the system is kept, the overall buffer effect is improved, the loss and abrasion of parts of the transmission system can be reduced, and the service life of the transmission system is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a transmission shaft buffer mechanism for baby carriages. Background Art

[0002] Baby strollers are a major category of travel products, including five categories: children's bicycles, strollers, baby walkers, children's tricycles, and children's electric vehicles. The drive shaft is an important component in vehicles such as cars and bicycles, used to transmit power and rotational force to the drive wheels of the vehicle. The drive shaft plays the role of connecting the power source (such as the pedal device) and the rear wheel in the baby stroller. It is responsible for transmitting manpower to the rear wheel, thereby propelling the baby stroller forward. The drive shaft is usually used in combination with transmission components such as gears and chains to achieve the function of power transmission.

[0003] At present, when most baby strollers are in use, the transmission shafts of the baby strollers are usually only buffered by springs or are not provided with buffer mechanisms, which has the following disadvantages: buffering is only performed by springs, and the buffering effect is relatively single, which limits the buffering effect and reduces the service life of the transmission system. Utility Model Content

[0004] The utility model aims to provide a transmission shaft buffer mechanism for a baby carriage, so as to solve the problem that the buffering effect is relatively single and the buffering effect is limited, resulting in a reduction in the service life of the transmission system.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a transmission shaft buffer mechanism for a baby carriage, including a buffer sleeve, the buffer sleeve is movably arranged at the top of a sleeve body, a buffer column is fixed at the bottom end of the buffer sleeve, the buffer column is slidably inserted into the interior of the sleeve body, a telescopic spline shaft is provided at the top of the buffer sleeve, a telescopic tube is provided at the top of the telescopic spline shaft, a buffer spring is fixed to the inner bottom surface of the sleeve body, the top of the buffer spring is fixedly connected to the bottom end of the buffer column, a rubber sleeve is detachably arranged between the sleeve body and the buffer sleeve, two mounting rings are fixed inside the rubber sleeve, and the two mounting rings are detachably arranged on the outside of the buffer sleeve and the sleeve body, respectively.

[0006] Preferably, threaded grooves are respectively opened on the left and right sides of the outer walls of the buffer sleeve and the sleeve body, and threaded holes are respectively opened on the left and right sides of the outer walls of the two mounting rings, bolts are respectively threadedly connected in the two threaded holes, and the threaded ends of the two bolts are respectively connected to the internal threads of the two threaded grooves.

[0007] Preferably, washers are respectively provided between the two bolts and the mounting ring.

[0008] Preferably, a first C-shaped convex circular fork is fixed to the bottom end of the sleeve body, and a second C-shaped convex circular fork is fixed to the top end of the telescopic tube.

[0009] Preferably, sealing rings are respectively fixed to the inner walls of the two mounting rings.

[0010] Preferably, the outer wall of the rubber sleeve is provided with a plurality of heat dissipation holes.

[0011] Compared with the prior art, the transmission shaft buffer mechanism for a baby stroller adopting the above technical solution has the following beneficial effects:

[0012] 1. During use, the use of the buffer spring and the rubber sleeve can help to better reduce the impact force and maintain the stability of the system, improve the overall buffering effect, reduce the loss and wear of the transmission system parts, and extend the service life of the transmission system;

[0013] 2. During use, the bolts facilitate the disassembly and assembly of the mounting ring and the rubber sleeve, thereby facilitating the maintenance or replacement of the rubber sleeve. The washers help protect the surface of the mounting ring from damage by the bolt heads, while increasing the contact area, dispersing the pressure, preventing the mounting ring from being damaged, and enhancing the stability and reliability of the mounting ring;

[0014] 3. During use, the first C-shaped convex fork and the second C-shaped convex fork provide a fixed connection point for the sleeve body and the telescopic tube, ensuring a tight connection between the components. The sealing ring is dustproof and anti-fouling, preventing dust, impurities, etc. from entering the interior of the sleeve body, reducing wear and damage to parts and extending service life. The heat dissipation holes facilitate the easier discharge of heat when the rubber sleeve is compressed, effectively reducing the temperature inside the sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 It is an exploded schematic diagram of an embodiment.

[0017] Figure 3 It is a schematic diagram of the explosion at the mounting ring in the embodiment.

[0018] Figure 4 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1. buffer sleeve; 2. sleeve body; 3. buffer column; 4. telescopic spline shaft; 5. telescopic tube; 6. buffer spring; 7. rubber sleeve; 8. mounting ring; 9. threaded groove; 10. threaded hole; 11. bolt; 12. washer; 13. first C-shaped convex circular fork; 14. second C-shaped convex circular fork; 15. sealing ring; 16. heat dissipation hole. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-Figure 4 As shown, a transmission shaft buffer mechanism for a baby carriage includes a buffer sleeve 1, which is movably arranged at the top of a sleeve body 2, a buffer column 3 is fixed to the bottom end of the buffer sleeve 1, and the buffer column 3 is slidably inserted into the interior of the sleeve body 2, a telescopic spline shaft 4 is provided at the top of the buffer sleeve 1, a telescopic tube 5 is provided at the top of the telescopic spline shaft 4, a buffer spring 6 is fixed to the inner bottom surface of the sleeve body 2, the top of the buffer spring 6 is fixedly connected to the bottom end of the buffer column 3, a rubber sleeve 7 is detachably arranged between the sleeve body 2 and the buffer sleeve 1, two mounting rings 8 are fixed inside the rubber sleeve 7, and the two mounting rings 8 are detachably arranged on the outside of the buffer sleeve 1 and the sleeve body 2, respectively.

[0022] During use, the staff first installs the sleeve body 2 and the telescopic tube 5 at the transmission device of the baby carriage. When the buffer column 3 is extended and retracted inside the sleeve body 2, the buffer spring 6 is compressed. The buffer spring 6 reduces the impact force during the transmission process through elastic deformation, effectively absorbs and disperses these impact forces, and the rubber sleeve 7 provides additional buffering effect. At the same time, it will be compressed and reset during the buffering process. The use of the buffer spring 6 and the rubber sleeve 7 is conducive to better reducing the impact force and maintaining the stability of the system, improving the overall buffering effect, reducing the loss and wear of the transmission system components, and extending the service life of the transmission system.

[0023] like Figure 1-Figure 4 As shown, thread grooves 9 are respectively opened on the left and right sides of the outer walls of the buffer sleeve 1 and the sleeve body 2, and threaded holes 10 are respectively opened on the left and right sides of the outer walls of the two mounting rings 8. Bolts 11 are respectively threadedly connected in the two threaded holes 10, and the threaded ends of the two bolts 11 are respectively threadedly connected to the internal threads of the two thread grooves 9.

[0024] During use, the bolts 11 facilitate the staff to disassemble and assemble the mounting ring 8 and the rubber sleeve 7 , thereby facilitating the staff to maintain or replace the rubber sleeve 7 .

[0025] like Figure 1-Figure 4As shown, washers 12 are respectively provided between the two bolts 11 and the mounting ring 8 , a first C-shaped convex circular fork 13 is fixed to the bottom end of the sleeve body 2 , and a second C-shaped convex circular fork 14 is fixed to the top end of the telescopic tube 5 .

[0026] In use, the washer 12 is used to protect the surface of the mounting ring 8 from being damaged by the head of the bolt 11, and at the same time, the contact area can be increased, the pressure can be dispersed, and the mounting ring 8 can be prevented from being damaged, thereby enhancing the stability and reliability of the mounting ring 8. The first C-shaped convex circular fork 13 and the second C-shaped convex circular fork 14 are used to provide a fixed connection point for the sleeve body 2 and the telescopic tube 5, ensuring a tight connection between the components.

[0027] like Figure 1-Figure 4 As shown, sealing rings 15 are respectively fixed to the inner walls of the two mounting rings 8 , and a plurality of heat dissipation holes 16 are opened on the outer wall of the rubber sleeve 7 .

[0028] In use, the sealing ring 15 is dustproof and anti-fouling, preventing dust, impurities, etc. from entering the sleeve body 2, reducing wear and damage to parts and extending the service life. The heat dissipation holes 16 facilitate the rubber sleeve 7 to be compressed, so that heat can be discharged more easily, effectively reducing the temperature inside the sleeve body 2.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transmission shaft buffer mechanism for a baby carriage, comprising a buffer sleeve (1), wherein the buffer sleeve (1) is movably arranged on the top of a sleeve body (2), and is characterized in that: A buffer column (3) is fixed to the bottom end of the buffer sleeve (1), and the buffer column (3) is slidably inserted into the interior of the sleeve body (2). A telescopic spline shaft (4) is provided at the top end of the buffer sleeve (1), and a telescopic tube (5) is provided at the top end of the telescopic spline shaft (4). A buffer spring (6) is fixed to the inner bottom surface of the sleeve body (2), and the top end of the buffer spring (6) is fixedly connected to the bottom end of the buffer column (3). A rubber sleeve (7) is detachably arranged between the sleeve body (2) and the buffer sleeve (1), and two mounting rings (8) are fixed inside the rubber sleeve (7). The two mounting rings (8) are detachably arranged on the outside of the buffer sleeve (1) and the sleeve body (2), respectively.

2. The transmission shaft buffer mechanism for a baby carriage according to claim 1, characterized in that: The buffer sleeve (1) and the sleeve body (2) are provided with threaded grooves (9) on the left and right sides of their outer walls, and the two mounting rings (8) are provided with threaded holes (10) on the left and right sides of their outer walls, and the two threaded holes (10) are respectively threadedly connected with bolts (11), and the threaded ends of the two bolts (11) are respectively threadedly connected with the inner parts of the two threaded grooves (9).

3. The transmission shaft buffer mechanism for a baby carriage according to claim 2, characterized in that: Washers (12) are respectively arranged between the two bolts (11) and the mounting ring (8).

4. The transmission shaft buffer mechanism for a baby carriage according to claim 3, characterized in that: A first C-shaped convex circular fork (13) is fixed to the bottom end of the sleeve body (2), and a second C-shaped convex circular fork (14) is fixed to the top end of the telescopic tube (5).

5. The transmission shaft buffer mechanism for a baby carriage according to claim 1, characterized in that: Sealing rings (15) are respectively fixed to the inner walls of the two mounting rings (8).

6. The transmission shaft buffer mechanism for a baby carriage according to claim 5, characterized in that: The outer wall of the rubber sleeve (7) is provided with a plurality of heat dissipation holes (16).

Images