Handle telescopic linkage mechanism
By designing a linkage mechanism with built-in locking lever and retractable locking tongue in the stroller handle, the problem of locking tongue being susceptible to collision and retracting by external forces is solved, and the safety and aesthetics of the handle are improved.
Patent Information
- Application Number
- CN202421512280.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the locking mechanism of the existing stroller handle, the locking tongue is easily retracted by external force, causing the upper half of the handle to slide down, which may hit the children in the car and cause damage.
A handle-handle telescopic linkage mechanism is designed, using a built-in lock lever and a retractable lock tongue. Through the linkage between the lock core seat and the lock lever, the lock tongue can only telescopic under artificial control to ensure that the handle is firmly locked when not in use.
It effectively avoids the risk of locking tongue retracting due to external force, improves the safety of the handle, and makes the overall design more beautiful.
Smart Images
Figure CN222646097U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of baby carriages, in particular to a handle telescopic linkage mechanism. Background Art
[0002] A baby stroller is a tool vehicle designed for the convenience of outdoor activities for infants and young children. It has long been widely used. In order to make baby strollers more convenient to carry and store, baby strollers are currently designed to be foldable. In this way, when the baby stroller is not in use, it can be folded into a smaller volume for easy carrying and storage.
[0003] Generally, height-adjustable baby stroller handlebars are mostly made of double-layer sleeves, which are slotted and then locked by a built-in movable lock tongue that is stuck in the slots on the two-layer sleeves. This way of slotting the handlebars not only affects the appearance, but the lock tongue in the slot is also easily retracted into the handlebar by external force, causing the upper part of the handlebar to slide down, which may hit the child in the stroller and cause injury. Therefore, how to make the lock tongue of the locking mechanism of the handlebar not easily hit by external force is a technical problem that we need to solve. Utility Model Content
[0004] Based on this, it is necessary to provide a handlebar telescopic linkage mechanism to address the problem that the lock tongue in the handlebar locking mechanism in the prior art is easily retracted into the handlebar by external force, causing the upper part of the handlebar to slide down, which may hit the children in the car. The purpose is to lock the handlebar firmly and adjust the height only under human control.
[0005] The lock mechanism is used to lock the upper handle 102 in the lower handle 101 or release the upper handle 102 from the lower handle 101. The lock mechanism includes a locking rod 20 mounted in the lower handle 101 and a lock core seat 10 that can reciprocate relative to the locking rod 20. The lock core seat 10 is fixedly connected to the upper handle 102. A retractable lock tongue 50 is provided on the lock core seat 10. The lock rod 20 is provided with a plurality of slots 21 that can clamp the lock tongue 50. When the lock tongue 50 is clamped in the slot 21, the upper handle 102 is locked in the lower handle 101. When the lock tongue 50 is outside the slot 21, the upper handle 102 can slide in the lower handle 101.
[0006] In some embodiments, a lock tongue mounting groove 12 is provided on the lock core seat 10, and the lock tongue 50 is movably installed in the lock tongue mounting groove 12. The lock rod 20 is an aluminum bar, and the lock rod 20 is fixedly mounted in the lower handle 101 along the length direction of the lower handle 101.
[0007] In some embodiments, a lock rod sliding groove 11 is provided on the lock core seat 10 , and the lock rod sliding groove 11 is connected to the lock tongue mounting groove 12 , and the lock rod 20 can be slidably inserted into the lock rod sliding groove 11 .
[0008] In some embodiments, the lock core further includes a lock tongue control mechanism, which is drivingly connected to the lock tongue 50 , and the lock tongue 50 can be extended from or retracted into the lock core seat 10 under the drive of the lock tongue control mechanism.
[0009] In some embodiments, the lock tongue control mechanism includes a pull rope 40 and a return spring 30 connected to the lock tongue 50 , wherein the pull rope 40 is used to pull the lock tongue 50 back to the lock cylinder seat 10 , and the return spring 30 is used to push the lock tongue 50 out of the lock cylinder seat 10 .
[0010] In some embodiments, the return spring 30 and the pull rope 40 are both transmission connected to the lock tongue 50 through a sliding assembly, and the sliding assembly includes a U-shaped sliding member 60 sleeved on the outside of the lock core seat 10, a No. 1 shaft 61 for connecting the sliding member 60 with the lock tongue 50, and a No. 2 shaft 62 for connecting the sliding member 60 with the lock tongue control mechanism.
[0011] In some embodiments, the No. 1 axis 61 passes through the lock tongue 50 and the lock core seat 10 and both ends are movably clamped on the sliding member 60. The lock core seat 10 is provided with a long first through groove 13, and the sliding member 60 is provided with a long sliding groove 601. The first through groove 13 and the sliding groove 601 are cross-arranged.
[0012] In some embodiments, a spring mounting groove 14 is further provided on the lock core seat 10, and the second shaft 62 can be slidably disposed in the spring mounting groove 14, and both ends of the second shaft 62 pass through the lock core seat 10 and are connected to the sliding member 60, and a second through groove 15 is provided on the lock core seat 10 for the second shaft 62 to slide.
[0013] In some embodiments, the return spring 30 is installed in the spring mounting groove 14, and one end of the return spring 30 is fixedly connected to the lock cylinder seat 10, and the other end is fixedly connected to the second shaft 62. One end of the pull rope 40 is fixedly connected to the second shaft 62, and the other end passes through the spring mounting groove 14 and is connected to a button 70 provided on the upper handle 102. The button 70 is used to pull the pull rope 40 so that the pull rope 40 pulls the second shaft 62 to slide in the second through groove 15.
[0014] The utility model provides a handle telescopic linkage mechanism, which has the following technical effects: the linkage mechanism in the utility model adopts a built-in locking rod. Compared with the locking rod grooved on the handle wall or externally arranged in the prior art, the built-in locking rod can prevent the lock tongue from retracting due to external force collision, thereby improving safety and making the overall appearance more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the installation structure of the lock core seat 10 and the lock rod 20 of the utility model.
[0018] Figure 3 It is a schematic diagram of the installation structure of the lock core seat 10 and the sliding member of the utility model.
[0019] Figure 4 It is a schematic diagram of the installation structure of the lock tongue 50 and the sliding member of the utility model.
[0020] Figure 5 It is a structural schematic diagram of a lock cylinder seat 10 of the present utility model.
[0021] Figure 6 It is a structural schematic diagram of the lock tongue mounting groove 12 in the lock core seat 10 of the utility model.
[0022] Figure 7 It is a schematic diagram of the positions of the lock tongue mounting groove 12 and the spring mounting groove 14 in the lock core seat 10 of the utility model.
[0023] Figure 8 It is a schematic diagram of the installation structure of the return spring 30 of the utility model.
[0024] Fig. 9 It is a schematic diagram of the installation structure of the pull rope 40 of the utility model.
[0025] Explanation of the accompanying drawings: lower handle 101, upper handle 102, lock core seat 10, lock rod sliding groove 11, lock tongue mounting groove 12, first through groove 13, spring mounting groove 14, second through groove 15, lock rod 20, slot 21, return spring 30, pull rope 40, lock tongue 50, sliding member 60, sliding groove 601, sliding member shaft hole 602, shaft number 1 61, shaft number 2 62, button 70. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher liquid level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower liquid level than the second feature.
[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "liquid horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0032] An embodiment of the utility model provides a handle telescopic linkage mechanism, which is used to adjust the height of the handle of the baby stroller, and improves the aesthetics and safety of the baby stroller through a locking rod built into the handle.
[0033] The structure of the handle telescopic linkage mechanism in the baby stroller handle of the present application is described below. It is understood that in other embodiments, the handle telescopic linkage mechanism of the present application is not limited to being used only in baby strollers, but can also be used in other frames that require handle height adjustment, which is not limited here.
[0034] See also Figure 1 , Figure 1 The overall structural schematic diagram of the handle telescopic linkage mechanism in an embodiment of the present application is shown, wherein the handle telescopic linkage mechanism includes a lower handle 101, an upper handle 102 and a locking mechanism, the upper handle 102 can be slidably installed in the lower handle 101, the locking mechanism is used to lock the upper handle 102 in the lower handle 101 or release the upper handle 102 from the lower handle 101, the locking mechanism includes a locking rod 20 mounted in the lower handle 101 and a lock core seat 10 that can reciprocate relative to the locking rod 20, the lock core seat 10 is fixedly connected to the upper handle 102, a retractable lock tongue 50 is provided on the lock core seat 10, and the lock rod 20 is provided with a plurality of slots 21 that can clamp the lock tongue 50, when the lock tongue 50 is clamped in the slot 21, the upper handle 102 is locked in the lower handle 101, and when the lock tongue 50 is outside the slot 21, the upper handle 102 can slide in the lower handle 101.
[0035] See also Figure 3 and Figure 4 The lock core seat 10 is provided with a lock tongue mounting groove 12 , and the lock tongue 50 is movably mounted in the lock tongue mounting groove 12 .
[0036] In some embodiments, the locking rod 20 is an aluminum bar, and the locking rod 20 is fixedly mounted in the lower handle 101 along the length direction of the lower handle 101. Figure 6 and Figure 7 The lock core seat 10 is provided with a lock rod sliding groove 11, and the lock rod sliding groove 11 is connected with the lock tongue mounting groove 12, and the lock rod 20 can be slidably arranged in the lock rod sliding groove 11.
[0037] In some embodiments, the lock core further includes a lock tongue control mechanism, which is drivingly connected to the lock tongue 50 , and the lock tongue 50 can be extended from or retracted into the lock core seat 10 under the drive of the lock tongue control mechanism.
[0038] See also Figure 8 and Fig. 9 The lock tongue control mechanism includes a pull rope 40 and a return spring 30 connected to the lock tongue 50. The pull rope 40 is used to pull the lock tongue 50 back to the lock core seat 10, and the return spring 30 is used to push the lock tongue 50 out of the lock core seat 10.
[0039] In some embodiments, the return spring 30 and the pull rope 40 are both transmission connected to the lock tongue 50 through a sliding assembly, and the sliding assembly includes a U-shaped sliding member 60 sleeved on the outside of the lock core seat 10, a No. 1 shaft 61 for connecting the sliding member 60 with the lock tongue 50, and a No. 2 shaft 62 for connecting the sliding member 60 with the lock tongue control mechanism.
[0040] like Figure 2 and Figure 3 As shown, the first shaft 61 passes through the lock tongue 50 and the lock core seat 10, and the two ends are movably clamped on the sliding member 60. The lock core seat 10 is provided with a long first through slot 13, and the sliding member 60 is provided with a long slide slot 601. The first through slot 13 and the slide slot 601 are arranged crosswise. When the sliding member 60 moves on the lock core seat 10, the intersection of the slide slot 601 and the first through slot 13 changes, and the first shaft 61, which is now in the slide slot 601 at both ends, moves in the slide slot 601 and the first through slot 13 following the changed intersection of the slide slot 601 and the first through slot 13, thereby driving the lock tongue 50 to move in the lock core seat 10 to achieve the extension and retraction of the lock tongue 50.
[0041] See also Figures 7 to 9 The lock core seat 10 is also provided with a spring mounting groove 14, and the second shaft 62 can be slidably arranged in the spring mounting groove 14, and both ends of the second shaft 62 pass through the lock core seat 10 and are connected to the sliding member 60. The lock core seat 10 is provided with a second through groove 15 for the second shaft 62 to slide.
[0042] Specifically, the return spring 30 is installed in the spring mounting groove 14, and one end of the return spring 30 is fixedly connected to the lock core seat 10, and the other end is fixedly connected to the second shaft 62. One end of the pull rope 40 is fixedly connected to the second shaft 62, and the other end passes through the spring mounting groove 14 and is connected to the button 70 provided on the upper handle 102. The button 70 is used to pull the pull rope 40 so that the pull rope 40 pulls the second shaft 62 to slide in the second through groove 15, wherein the button and pull rope transmission mechanism is a transmission structure commonly used in baby carriages, which will not be elaborated again.
[0043] The lock core seat 10 is also provided with a spring mounting groove 14, and the side walls of the lock core seat 10 on both sides of the spring mounting groove 14 are provided with a long second through groove 15. The two U-shaped arm side plates of the sliding member 60 are provided with a sliding member shaft hole 602 for installing the second shaft 62. One end of the second shaft 62 is fixedly installed in one sliding member shaft hole 602, and the other end passes through the second through groove 15 and is fixedly installed in another sliding member shaft hole 602, and the part of the second shaft 62 located in the second through groove 15 can slide in the second through groove 15.
[0044] The return spring 30 is installed in the spring installation groove 14, and one end of the return spring 30 is fixedly connected to the lock cylinder seat 10, and the other end is fixedly connected to the second shaft 62. One end of the pull rope 40 is fixedly connected to the second shaft 62, and the other end is connected to a button 70 for pulling the pull rope 40, and the button 70 is used to pull the pull rope 40 to pull the second shaft 62 to slide.
[0045] The working principle is as follows: the user presses the button 70 of the pull rope 40 to tighten the pull rope 40, and the pull rope 40 pulls the second shaft 62 to slide in the second through groove 15, and causes the return spring 30 to be deformed by force, thereby driving the sliding member 60 to slide on the lock core seat 10, and the sliding member 60 drives the lock tongue 50 to retract into the lock core seat 1020. At this time, the handle movable rod 12 and the handle mounting rod 11 are in the unlocked state, and the handle movable rod 12 can slide in the handle mounting rod 11 to achieve the purpose of adjusting the handle height. After adjustment, release the button 70, the pull rope 40 is in a relaxed state, the reset spring 30 recovers and drives the second shaft 62 to slide in the second through groove 15, thereby driving the sliding member 60 to slide on the lock core seat 10, and the sliding member 60 drives one end of the lock tongue 50 to extend out of the lock core seat 1020, and slowly pushes the handle movable rod 12 upward or downward to make the lock tongue 50 fall into the nearest slot 21. Under the tension and relaxation force of the reset spring 30 itself, the sliding member 60 is in a stable state, and the lock tongue 50 is locked in the slot 21.
[0046] The utility model provides a handle telescopic linkage mechanism, which has the following technical effects: the linkage mechanism in the utility model adopts a built-in locking rod. Compared with the locking rod grooved on the handle wall or externally arranged in the prior art, the built-in locking rod can prevent the lock tongue from retracting due to external force collision, thereby improving safety and making the overall appearance more beautiful.
[0047] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A handle telescopic linkage mechanism for adjusting the height of a baby stroller handle, characterized in that: The lock mechanism comprises a lower handle, an upper handle and a locking mechanism, wherein the upper handle can be slidably installed in the lower handle, and the locking mechanism is used to lock the upper handle in the lower handle or release the upper handle from the lower handle, and the locking mechanism comprises a locking rod mounted in the lower handle and a lock core seat which can reciprocate relative to the locking rod, the lock core seat is fixedly connected to the upper handle, a retractable lock tongue is provided on the lock core seat, and the lock rod is provided with a plurality of slots which can clamp the lock tongue, when the lock tongue is clamped in the slot, the upper handle is locked in the lower handle, and when the lock tongue is outside the slot, the upper handle can slide in the lower handle.
2. A handle telescopic linkage mechanism according to claim 1, characterized in that: The lock core seat is provided with a lock tongue installation groove, the lock tongue is movably installed in the lock tongue installation groove, and the lock rod is an aluminum bar, which is fixedly mounted in the lower handle along the length direction of the lower handle.
3. A handle telescopic linkage mechanism according to claim 2, characterized in that: The lock core seat is provided with a lock rod sliding groove, the lock rod sliding groove is through-connected with the lock tongue mounting groove, and the lock rod can be slidably inserted into the lock rod sliding groove.
4. The handle telescopic linkage mechanism according to claim 1, characterized in that: The lock core also includes a lock tongue control mechanism, which is drivingly connected to the lock tongue. The lock tongue can be extended from the lock core seat or retracted into the lock core seat under the drive of the lock tongue control mechanism.
5. A handle telescopic linkage mechanism according to claim 4, characterized in that: The lock tongue control mechanism comprises a pull rope and a reset spring connected to the lock tongue, wherein the pull rope is used to pull the lock tongue back to the lock core seat, and the reset spring is used to push the lock tongue out of the lock core seat.
6. A handle telescopic linkage mechanism according to claim 5, characterized in that: The return spring and the pull rope are both connected to the lock tongue through a sliding assembly, and the sliding assembly includes a U-shaped sliding member sleeved on the outside of the lock core seat, a No. 1 shaft for connecting the sliding member and the lock tongue, and a No. 2 shaft for connecting the sliding member and the lock tongue control mechanism.
7. A handle telescopic linkage mechanism according to claim 6, characterized in that: The number one shaft passes through the lock tongue and the lock core seat and both ends are movably clamped on the sliding member. The lock core seat is provided with a long first through groove, and the sliding member is provided with a long sliding groove. The first through groove and the sliding groove are cross-arranged.
8. The handle telescopic linkage mechanism according to claim 7, characterized in that: The lock core seat is also provided with a spring installation groove, and the second shaft can be slidably arranged in the spring installation groove, and both ends of the second shaft pass through the lock core seat and are connected to the sliding member. The lock core seat is provided with a second through groove for the second shaft to slide.
9. The handle telescopic linkage mechanism according to claim 8, characterized in that: The return spring is installed in the spring installation groove, and one end of the return spring is fixedly connected to the lock core seat, and the other end is fixedly connected to the second shaft. One end of the pull rope is fixedly connected to the second shaft, and the other end passes through the spring installation groove and is connected to a button provided on the upper handle. The button is used to pull the pull rope so that the pull rope pulls the second shaft to slide in the second through groove.