Handlebar telescoping mechanism and baby carriage frame

Abstract

According to the technical scheme, a button part and a handheld part are arranged on a handle, the button part is arranged at the end of the handheld part, meanwhile, a button piece matched with the button part is arranged on the button part, parents only need to put the two hands on the handheld part when using the handle telescopic mechanism, and the handle telescopic mechanism can be used by the parents. Compared with the prior art, the unlocking operation is completed by pressing the button piece through the thumb, the use action conforms to ergonomics, and the use comfort is improved; meanwhile, the transmission unlocking mechanism is arranged between the button piece and the locking mechanism, the problem that the stroke of the button piece is limited in the linear transmission process is solved, the transmission reliability is high, and the button mechanism has the advantages of conforming to ergonomics and being high in transmission reliability.

Description

Technical Field

[0001] This utility model relates to the field of infant and child product technology, and in particular to a handle telescopic mechanism and a stroller frame. Background Technology

[0002] With the rapid development of the infant and toddler product industry, the functionality and user experience of strollers have become core elements of market competition. The adjustable handle, as a crucial functional module of strollers, directly impacts the comfort of parents pushing the stroller and its adaptability to different usage scenarios. The current market demands higher standards for stroller handle structures: they must simultaneously meet the requirements of ease of operation, structural stability, and smooth folding. As a key component in achieving these functions, the technological innovation of the handle extension mechanism has become a key focus of industry research and development.

[0003] Current stroller handle extension technology mainly uses manual locking adjustment. Specifically, operating a button or latch on the handle activates an internal traction rope to pull the unlocking mechanism, thereby releasing the limit between the upper and lower handle tubes. During operation, parents need to press the button or flick the latch with their fingers. This operation method requires parents to consciously adjust their hand posture to trigger the operation, which does not conform to the natural operating habits of the human body. At the same time, because existing buttons lack a dedicated transmission unlocking mechanism, the effective travel of the button is limited when using linear transmission. It often requires a large amount of pressing force to complete the unlocking, affecting the user experience. Existing technology has shortcomings in ergonomics and low transmission reliability. Utility Model Content

[0004] The main purpose of this utility model is to propose a handle telescopic mechanism, which aims to solve the technical problems of insufficient ergonomic technology and low transmission reliability in the existing technology.

[0005] To achieve the above objectives, this utility model proposes a handle telescopic mechanism, comprising:

[0006] The handlebar tube includes an upper handlebar tube and a lower handlebar tube, with the upper handlebar tube being movably connected to the lower handlebar tube.

[0007] A handle is installed at the upper end of a handle tube. The handle includes a button part and a grip part. The button part is located at the end of the grip part. The button part is equipped with a button element, which at least partially extends into the button part and is telescopically mounted on the button part.

[0008] A locking mechanism is configured to lock the movement of the upper handlebar relative to the lower handlebar when the handlebar is in the extended state, and to release the lock before the upper handlebar moves relative to the lower handlebar, thereby allowing the upper handlebar to move relative to the lower handlebar; and

[0009] The transmission unlocking mechanism is located between the button and the locking mechanism. When the upper handlebar moves relative to the lower handlebar, the transmission unlocking mechanism transmits the force of the button to the locking mechanism to release the locking mechanism, thereby releasing the limit of the upper handlebar relative to the lower handlebar.

[0010] Furthermore, the transmission unlocking mechanism includes a transmission component and a connecting component, wherein the transmission component is located between the button component and the connecting component, and the connecting component is located between the transmission component and the locking mechanism.

[0011] Furthermore, the transmission component is constructed as a torsion spring, and the button component is provided with a fixing part for limiting the first end of the torsion spring. At the same time, an intermediate component is provided between the torsion spring and the connecting component for limiting the second end of the torsion spring and the connecting component. The intermediate component has an upper intermediate part for limiting the second end of the torsion spring at one end and a lower intermediate part for limiting the connecting component at one end.

[0012] Furthermore, the button section is also provided with a first reset component for resetting the button component.

[0013] Furthermore, the locking mechanism is located on the upper handle tube. The locking mechanism includes a locking element for locking the upper handle tube. The upper handle tube has a through-hole, and the lower handle tube has a locking groove for engaging the locking element. The through-hole and the locking groove are located on the same path. The locking element passes through the through-hole and engages with the locking groove. The locking mechanism also includes a movable mechanism. The locking element engages with or disengages from the locking groove through the movable mechanism, thereby switching the locked or unlocked state of the upper handle tube.

[0014] Furthermore, the movable mechanism includes a first movable member and a second movable member. The first movable member is connected to the transmission unlocking mechanism, and the first and second movable members are movably connected. The first movable member has an oblique first limiting groove, while the second movable member has a vertical second limiting groove. The first and second limiting grooves at least partially overlap. The locking member includes a movable part and a locking part. The movable part passes through the overlapping part of the first and second limiting grooves. The movable part is fixedly connected to or integrally formed with the locking part. The locking part is driven by the movable part, thereby engaging with or disengaging from the locking groove.

[0015] Furthermore, a receiving chamber is formed between the first movable member and the second movable member, and a second reset component for resetting the first movable member is provided in the receiving chamber.

[0016] Furthermore, the second reset component is configured as a spring and located at both ends of the accommodating chamber, with the first movable member and the second movable member respectively provided with a first mounting portion and a second mounting portion for mounting the spring.

[0017] Furthermore, there are at least three locking slots, and the locking slots are located on the same straight line of the lower tube of the handle.

[0018] This utility model also proposes a stroller frame, including the aforementioned handle extension mechanism.

[0019] This utility model's technical solution features a handle with a button section and a grip section. The button section is located at the end of the grip section, and a matching button component is provided on the button section. When using the device, parents only need to place their hands on the grip section and press the button component with their thumbs to complete the unlocking operation. Compared with the prior art, this usage action is ergonomic and enhances user comfort. At the same time, this utility model has a transmission unlocking mechanism between the button component and the locking mechanism, which solves the problem of limited stroke during the linear transmission of the button component, resulting in high transmission reliability. This utility model has the beneficial effects of being ergonomic and having high transmission reliability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 3 Analyzing the three-dimensional structure of this utility model Figure 1 ;

[0023] Figure 4 Analyzing the three-dimensional structure of this utility model Figure 2 ;

[0024] Figure 5 This is a three-dimensional structural diagram of the handle telescopic mechanism;

[0025] Figure 6 3D structure breakdown of the handle telescopic mechanism Figure 1 ;

[0026] Figure 7 3D structure breakdown of the handle telescopic mechanism Figure 2 ;

[0027] Figure 8 A three-dimensional structural diagram of the locking mechanism;

[0028] Figure 9 This is a schematic diagram of the planar structure of the locking mechanism;

[0029] Figure 10 This is an exploded planar view of the locking mechanism.

[0030] The above figures include the following reference numerals:

[0031] 1. Handle telescopic mechanism; 11. Handle tube; 111. Upper handle tube; 1111. Through port; 112. Lower handle tube; 1121. Locking groove; 12. Handle; 121. Button part; 122. Grip part; 123. Button component; 1231. Fixing part; 124. First reset component; 13. Locking mechanism; 131. Locking component; 1311. Moving part; 1312. Locking part; 132. Moving mechanism; 1321. First moving component; 13211. First limiting groove; 13212. 1. First mounting part; 1322. Second movable part; 13221. Second limiting groove; 13222. Second mounting part; 1323. Accommodating chamber; 1324. Second reset component; 14. Transmission unlocking mechanism; 141. Transmission component; 142. Connecting component; 143. Intermediate component; 1431. Upper intermediate component; 14311. Upper mounting part; 14312. Upper limiting groove; 1432. Lower intermediate component; 14321. Lower mounting part; 14322. Lower limiting groove; 2. Stroller frame. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is 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 indication will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] This utility model proposes a handle telescopic mechanism 1.

[0036] In this embodiment of the utility model, such as Figures 1 to 10 As shown, the handle telescopic mechanism 1 includes a handle tube 11, a handle 12 mounted on the upper end of the handle tube 11, a locking mechanism 13, and a transmission unlocking mechanism 14. Specifically, the handle tube 11 includes an upper handle tube 111 and a lower handle tube 112, with the upper handle tube 111 movably connected to the lower handle tube 112. The handle 12 includes a button portion 121 and a grip portion 122. The button portion 121 is located at the end of the grip portion 122, and a button element 123 is provided in conjunction with the button portion 121. The button element 123 extends at least partially into the button portion 121 and is telescopically mounted on the button portion 121. The locking mechanism 13 is configured to lock the movement of the upper handle tube 111 relative to the lower handle tube 112 when the handle tube 11 is in the extended state, and to release the movement of the upper handle tube 111 relative to the lower handle tube 112 before the upper handle tube 111 moves relative to the lower handle tube 112. The upper handle tube 111 is locked relative to the lower handle tube 112 to allow movement. The transmission unlocking mechanism 14 is located between the button 123 and the locking mechanism 13. When the upper handle tube 111 moves relative to the lower handle tube 112, the transmission unlocking mechanism 14 transmits the force of the button 123 to the locking mechanism 13 to release the locking mechanism 13, thereby releasing the limit of the upper handle tube 111 relative to the lower handle tube 112. When the handle needs to be extended or retracted, the user places his hand on the grip 122 and uses his fingers to press the button 123 to drive the transmission unlocking mechanism 14, thereby releasing the locking mechanism 13. According to general habits, the user mainly uses four fingers other than the thumb to grasp the grip 122 and uses the thumb to press the button 123. The design of the grip 122 and the button 121 is ergonomic and provides a comfortable user experience.

[0037] In some embodiments of this utility model, the transmission unlocking mechanism 14 includes a transmission member 141 and a connecting member 142, wherein the transmission member 141 is disposed between the button member 123 and the connecting member 142, and the connecting member 142 is disposed between the transmission member 141 and the locking mechanism 13.

[0038] Specifically, to facilitate understanding of the functions and relationship between the transmission component 141 and the connecting component 142, the following preferred embodiment is proposed: The transmission component 141 is constructed as a torsion spring, which has strong transmission properties. The button component 123 is provided with a fixing part 1231 for limiting the first end of the torsion spring. The end of the torsion spring extends into the fixing part 1231 to reduce the movement. At the same time, an intermediate component 143 is provided between the torsion spring and the connecting component 142 for limiting the second end of the torsion spring and the connecting component 142. The end of the intermediate component 143 facing the torsion spring is provided with an upper intermediate component 1431 for limiting the second end of the torsion spring, and the end facing the connecting component 142 is provided with a lower intermediate component 1432 for limiting the connecting component 142. In some other embodiments of this utility model, the torsion spring can also be simply replaced by a disc spring, a leaf spring structure, or other structures that transmit elastic power. It can be understood that the upper intermediate component 1431 and the lower intermediate component 1432 can be integrally formed or separately installed.

[0039] Specifically, the upper intermediate part 1431 includes an upper mounting part 14311 and an upper limit groove 14312. The upper mounting part 14311 is used to connect the end of the torsion spring, while the upper limit groove 14312 is used to abut against the end of the torsion spring, thereby reducing the phenomenon of abnormal movement of the torsion spring during transmission.

[0040] Specifically, to facilitate understanding of the functions and relationship between the connector 142 and the lower intermediate member 1432, the following preferred embodiment is proposed: the connector 142 is constructed as a rod, and the lower intermediate member 1432 includes a lower mounting portion 14321 that abuts against the upper intermediate member 1431 and a lower limiting groove 14322 for fixing the upper end of the rod. The lower mounting portion 14321 is constructed as an action surface that abuts against the bottom of the upper intermediate member 1431. The upper end of the rod extends into the lower limiting groove 14322, and the lower limiting groove 14322 is constructed as a hollow annular column. The combination of the rod and the lower limiting groove 14322 has good transmission performance, and the fixed connection is stable. It can be understood that the lower end of the rod is connected to the locking mechanism 13, and a similar annular column structure to the lower limiting groove 14322 can be provided in the locking mechanism 13 to fix the lower end of the rod.

[0041] In some embodiments of this utility model, in order to achieve reset after the button 123 is pressed, the button part 121 is also provided with a first reset component 124 for resetting the button 123.

[0042] Specifically, to facilitate understanding of the functions and relationship between the first reset component 124 and the button component 123, the following preferred embodiment is proposed: the first reset component 124 is constructed as a spring, which is disposed inside the button portion 121 and abuts against the button component 123. When the button component 123 is pushed towards the button portion 121, the spring stores elastic potential energy. When the button component 123 stops being pushed, the spring releases the elastic potential energy to push the button component 123 back. In some other embodiments of this utility model, the first reset component 124 can also be constructed as a component that resets elastically, such as rubber, sponge, or elastic fiber. This is the prior art and will not be described in detail here.

[0043] In some embodiments of this utility model, the locking mechanism 13 is provided on the upper handle tube 111. The locking mechanism 13 includes a locking member 131 for locking the upper handle tube 111. The upper handle tube 111 is provided with a through-hole 1111, and the lower handle tube 112 is provided with a locking groove 1121 for engaging the locking member 131. The through-hole 1111 and the locking groove 1121 are located on the same path. The locking member 131 passes through the through-hole 1111 and engages with the locking groove 1121. The locking mechanism 13 also includes a movable mechanism 132. The locking member 131 engages with or disengages from the locking groove 1121 through the movable mechanism 132, thereby switching the locked or unlocked state of the upper handle tube 111.

[0044] Specifically, the movable mechanism 132 includes a first movable member 1321 and a second movable member 1322. The first movable member 1321 is connected to the transmission unlocking mechanism 14, and the first movable member 1321 and the second movable member 1322 are movably connected. The first movable member 1321 is provided with an oblique first limiting groove 13211, while the second movable member 1322 is provided with a vertical second limiting groove 13221. The first limiting groove 13211 and the second limiting groove 13221 overlap at least partially. The locking member 131 includes a movable part 1311 and a locking part 1312. The movable part 1311 passes through the overlapping part of the first limiting groove 13211 and the second limiting groove 13221. The movable part 1311 is fixedly connected to or integrally formed with the locking part 1312. The locking part 1312 is driven by the movable part 1311, thereby engaging with or disengaging from the locking groove 1121.

[0045] Specifically, a receiving chamber 1323 is formed between the first movable member 1321 and the second movable member 1322, and a second reset component 1324 for resetting the first movable member 1321 is provided in the receiving chamber 1323.

[0046] Specifically, to facilitate understanding of the functions and relationships of the second reset component 1324, the first movable component 1321, and the second movable component 1322, the following preferred embodiment is proposed: The second reset component 1324 is constructed as a spring and located at both ends of the accommodating chamber 1323. The first movable component 1321 and the second movable component 1322 are respectively provided with a first mounting portion 13212 and a second mounting portion 13222 for mounting the spring. The first mounting portion 13212 and the second mounting portion 13222 are constructed as protrusions, and the end of the spring wraps around the protrusion to form a connection. In addition, in some other embodiments, the second reset component 1324 can also refer to the description of the first reset component 124 and use other components that elastically reset to replace the spring. This is the prior art and will not be described in detail.

[0047] In some embodiments of this utility model, in order to realize the height adjustment function of the handle tube 11 extension and retraction, at least three locking slots 1121 are provided, and the locking slots 1121 are provided on the same straight line as the lower handle tube 112. It can be understood that when there are two locking slots 1121, high and low locking can be realized, thus showing two usage states of unfolding and retracting. When locking slots 1121 are added between the high and low locking slots 1121, the upper handle tube 111 at different heights can be locked, thus extending the height adjustment function of the handle tube 11.

[0048] This utility model also proposes a stroller frame 2, such as Figures 1 to 4 As shown, the stroller frame 2 includes the aforementioned handle extension mechanism 1, and the structure of the handle extension mechanism 1 of the stroller frame 2 is as described in the above embodiments. Since this stroller frame 2 adopts all the technical solutions of all the embodiments of the above-described handle extension mechanism 1, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0049] The following content serves as an explanation of the working principle of this utility model:

[0050] The user places their palm on the grip 122, aligns their thumb with the button 121, and pushes the button 123 with their thumb. The button 123 drives the transmission unlocking mechanism 14 to release the locking mechanism 13. Specifically, the button 123 pushes the transmission member 141, which in turn drives the first movable member 1321 via the connecting member 142. After the first movable member 1321 is pushed, it is acted upon by the first limiting groove 13211 and the second limiting groove 13221, causing the movable part 1311 to move upward. The locking part 1312 follows the movable part 1311 upward, during which the locking part 1312 disengages from the locking groove 1121 and the through 1111. At this point, the lock on the handle tube 11 is released, and the upper handle tube 111 can extend and retract along the lower handle tube 112.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A handle telescoping mechanism, characterized by, The handle telescopic mechanism comprises a handle tube, a handle, a locking mechanism and a transmission unlocking mechanism. The handle tube comprises an upper handle tube and a lower handle tube, and the upper handle tube is movably connected to the lower handle tube. The handle is arranged at the upper end of the handle tube and comprises a button part and a handgrip part. The button part is arranged at the end of the handgrip part. The button part is provided with a button piece.

2. The handle extension mechanism of claim 1, wherein: The button piece at least partially extends into the button part.

3. The handle extension mechanism of claim 2, wherein: The button piece is telescopically arranged in the button part.

4. The handle extension mechanism according to any one of claims 1 to 3, wherein: The locking mechanism is arranged at the handle tube in an unfolded state.

5. The handle extension mechanism of claim 1, wherein: The locking mechanism locks the movement of the upper handle tube relative to the lower handle tube.

6. The handle extension mechanism of claim 5, wherein: Before the upper handle tube moves relative to the lower handle tube, the locking of the upper handle tube relative to the lower handle tube is released to realize the movement of the upper handle tube relative to the lower handle tube.

7. The handle extension mechanism of claim 6, wherein: The transmission unlocking mechanism is arranged between the button piece and the locking mechanism.

8. The handle extension mechanism of claim 7, wherein: When the upper handle tube moves relative to the lower handle tube, the transmission unlocking mechanism transmits the force of the button piece to the locking mechanism to release the locking mechanism and thereby release the position limitation of the upper handle tube relative to the lower handle tube.

9. A handle extension mechanism according to any one of claims 5 to 8, wherein: The transmission unlocking mechanism comprises a transmission piece and a connecting piece.

10. A stroller frame, characterized by, The transmission piece is arranged between the button piece and the connecting piece. The connecting piece is arranged between the transmission piece and the locking mechanism. The transmission piece is configured as a torsion spring. The button piece is provided with a fixing part for limiting the first end of the torsion spring. Meanwhile, an intermediate assembly is arranged between the torsion spring and the connecting piece for limiting the second end of the torsion spring and the connecting piece. One end of the intermediate assembly towards the torsion spring is provided with an upper intermediate piece for limiting the second end of the torsion spring. The other end of the intermediate assembly towards the connecting piece is provided with a lower intermediate piece for limiting the connecting piece. The button part is further provided with a first reset part for resetting the button piece. The locking mechanism is arranged at the upper handle tube. The locking mechanism comprises a locking piece for locking the upper handle tube. The upper handle tube is provided with a through hole. The lower handle tube is provided with a locking groove for clamping the locking piece. The through hole and the locking groove are arranged on the same path. The locking piece passes through the through hole and is clamped in the locking groove. The locking mechanism further comprises a movement mechanism. The locking piece is clamped in or separated from the locking groove through the movement mechanism, thereby switching the locking or releasing state of the upper handle tube. The movement mechanism comprises a first movement piece and a second movement piece. The first movement piece is connected to the transmission unlocking mechanism. The first movement piece and the second movement piece are movably connected. The first movement piece is provided with a first limiting groove obliquely arranged. The second movement piece is provided with a second limiting groove vertically arranged. The first limiting groove and the second limiting groove at least partially overlap. The locking piece comprises a movement part and a locking part. The movement part passes through the overlapping part of the first limiting groove and the second limiting groove. The movement part is fixedly connected or integrally formed with the locking part. The locking part is driven by the movement part and is clamped in or separated from the locking groove. A receiving cavity is formed between the first movement piece and the second movement piece. The receiving cavity is provided with a second reset part for resetting the first movement piece. The second reset part is configured as a spring and is arranged at both ends of the receiving cavity. The first movement piece and the second movement piece are respectively provided with a first mounting part and a second mounting part for mounting the spring. The locking groove is arranged on the same straight line of the lower handle tube. The handle telescopic mechanism comprises the handle telescopic mechanism of claim 1.

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