Push handle structure and baby stroller

Abstract

The present invention relates to a push handle structure and a baby stroller, comprising: an unlocking push mechanism, which is embedded in the handle from above and can move in the direction of being embedded in the handle; a first push rod, one end of which is connected to the unlocking push mechanism and extends in a direction away from the handle; a second push rod, one end of which is connected to the unlocking push mechanism and extends in a direction away from the handle; a push plate, which is connected to the other end of the first push rod away from the handle, and a drive groove is provided on the surface of the push plate; a lock tongue, which is connected to the drive groove by a drive pin, and the lock tongue passes through the wall of the outer tube from the inside to the outside to lock the relative position between the inner tube and the outer tube; an unlocking drive member, which is connected to the other end of the second push rod away from the handle, and can move in a direction away from the handle when the second push rod is pushed downward by the unlocking push mechanism; when the push handle length needs to be adjusted, the push plate moves in a direction away from the handle under the pushing action of the first push rod.

Description

Technical Field

[0001] The present invention relates to the field of bed design, in particular to a push handle structure and a baby carriage. Background Art

[0002] Existing strollers are primarily designed to confine infants, providing a safe riding space. However, disassembling existing strollers after use is extremely inconvenient, requiring a screwdriver to remove bolts from the frame joints. Furthermore, the removed bolts and frame joints can easily be lost during storage, hindering the subsequent installation and use of the playard.

[0003] To address this issue, one approach is to fold the stroller when not in use. However, the unfolded state of such foldable strollers is unstable, especially because the handles are prone to shaking or changing length, making them difficult to use safely. Therefore, locking the stroller after unfolding is an option. However, current locking methods are inflexible and require a complex and laborious operation. Unlocking requires manually twisting the handle at the connection point between the stroller and the body, and then rotating the handle to fold it, resulting in a slow unlocking process. Summary of the Invention

[0004] Based on this, it is necessary to provide a push handle structure and a baby stroller to address at least some of the problems raised above.

[0005] A push handle structure, comprising:

[0006] A handle is connected to the upper end of the inner tube, and an outer tube is provided on the outer surface of the inner tube;

[0007] An unlocking push mechanism is embedded in the handle from above and can move along the direction of embedding inside the handle, and is used to drive the first push rod and the second push rod to move downward respectively;

[0008] a first push rod, one end of which is connected to the unlocking push mechanism and the other end of which extends away from the handle, wherein the first push rod is disposed in the inner tube;

[0009] a second push rod, one end of which is connected to the unlocking push mechanism and the other end of which extends away from the handle, the second push rod being disposed in the inner tube;

[0010] a push plate connected to the other end of the first push rod away from the handle, and a driving groove is provided on the surface of the push plate;

[0011] A locking tongue is connected to the driving groove via a driving pin, and the locking tongue passes through the wall of the outer tube from the inside to the outside to lock the relative position between the inner tube and the outer tube;

[0012] An unlocking drive member is connected to the other end of the second push rod away from the handle and can move in a direction away from the handle when the second push rod is pushed downward by the unlocking pressing mechanism. The side surface of the unlocking drive member has a sloped driving surface that is angled with the moving direction of the unlocking drive member, and is used to push the locking mechanism in a direction away from the push handle structure to achieve unlocking when the unlocking drive member moves.

[0013] When the lock between the inner tube and the outer tube needs to be released, the push plate moves away from the handle under the push of the first push rod, and the driving pin drives the locking tongue to move in the direction of retracting into the outer tube under the push of the groove wall of the driving groove.

[0014] In some embodiments, the unlocking mechanism includes:

[0015] an unlocking button, disposed above the first push rod and the second push rod;

[0016] A push block is provided between the unlocking button and the push rod, wherein a driving surface of the push block on a side away from the unlocking button is provided with an avoidance hole, and a surface of the push block is provided with a sinking groove having an inclined groove wall surface;

[0017] A driving button is inserted into the sink, and the inclined driving surface of the driving button is in contact with the wall of the inclined groove;

[0018] The driving button is configured to be movable in a direction of being inserted into the sink, so that the inclined driving surface and the inclined groove wall slide relative to each other, thereby driving the push block to move, so that the unlocking button mechanism switches between a first driving position and a second driving position;

[0019] When the unlocking push mechanism is in the first driving position, the driving surface abuts against the first push rod, and the avoidance hole faces the second push rod;

[0020] When the unlocking push mechanism is in the second driving position, the driving surface abuts against the second push rod, and the avoidance hole is opposite to the first push rod.

[0021] In some embodiments, the driving groove is a linear groove, and in the direction from the handle to the locking tongue, the driving groove gradually extends toward the wall of the outer sleeve.

[0022] In some embodiments, there are two driving slots and two locking tongues mounted in cooperation with the driving slots, which are symmetrically arranged on the push plate.

[0023] In some embodiments, a guide hole is provided in the middle of the push plate along the length direction of the first push rod for the installation shaft of the push plate to pass through; when the push plate is driven to move, the guide hole is used to slide relative to the installation shaft to provide guidance for the movement of the push plate.

[0024] In some embodiments, it further includes:

[0025] A first push block is sleeved on an end of the first push rod away from the handle;

[0026] A fixed sleeve is sleeved on the push plate and the lock tongue, and a through hole is provided on the surface of the fixed sleeve for the lock tongue to extend out;

[0027] The first spring is arranged between the first push block and the fixed sleeve, with one end of the first spring against the push block and the other end embedded in the fixed sleeve, and is used to shorten when the first unlocking button is pressed and accumulate elastic potential energy, and to lengthen when the first unlocking button is released and push the first push block in the opposite direction to drive the first unlocking button to move in the opposite direction and reset.

[0028] In some embodiments, it further includes:

[0029] A second push block is sleeved on an end of the second push rod away from the handle, and the unlocking drive member is provided on an end of the second push block away from the handle;

[0030] The second spring is arranged between the fixed block and the side of the second push block facing away from the unlocking drive member, and is used to be stretched and accumulate elastic potential energy when the second unlocking button is pressed and the second push block moves, and shortens when the second unlocking button is released, and drives the second push block and the second unlocking button to move in the opposite direction and reset.

[0031] In some embodiments, a first limiting end surface is provided on the side of the fixing sleeve facing away from the unlocking drive member; a second limiting end surface is provided on the second push block opposite to the first limiting end surface, and the first limiting end surface is used to abut the second limiting end surface when the second push block is driven to move a preset distance away from the handle to limit excessive movement of the second push block.

[0032] In some embodiments, the locking mechanism comprises:

[0033] The locking gear is provided with a plurality of engaging teeth distributed circumferentially; the two ends of each engaging tooth in the length direction are respectively embedded in the connecting seat of the vehicle body and the slot in the joint cavity of the push handle, thereby locking and connecting the vehicle body and the push handle;

[0034] The unlocking drive member is placed between the locking gear and the connecting seat. In the locked state, the inclined surface of the locking gear facing the unlocking drive member is in contact with the sloped driving surface; when the unlocking drive member moves downward, the inclined surface of the locking gear and the sloped driving surface slide relative to each other and are pushed into the push handle joint cavity.

[0035] A baby stroller comprises the above-mentioned push handle structure.

[0036] The above-mentioned push handle structure has at least the following beneficial technical effects:

[0037] (1) In the locked state, the locking mechanism at the far end of this embodiment, such as a lock buckle, can lock the push handle and the stroller body together, thereby ensuring that the spatial position of the push handle relative to the stroller body is stable and will not shake, and the lock tongue can lock the relative position of the inner tube and the outer tube. At this time, the push handle itself has a stable structure, and the length and overall appearance remain unchanged, which can ensure safe use. The unlocking operation is convenient. After the lock tongue is unlocked, the inner tube and the outer tube are no longer locked together. The outer tube can be moved along the length direction to change the relative position of the inner tube and the outer tube, thereby changing the structure and overall length of the push handle. When the unlocking drive member pushes the locking mechanism open through the sloped drive surface, the lock between the push handle and the stroller body can be released, and then the push handle can be flexibly rotated to change the spatial position of the push handle as a whole.

[0038] In this embodiment, when unlocking is required, only the unlocking button mechanism needs to be operated. During operation, the unlocking can be done by directly holding the push handle. The hand does not need to move to other parts of the push rod to operate, which is extremely convenient and labor-saving. The locking and unlocking operations are fast and the response is timely. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a push handle structure provided by an embodiment of the present invention;

[0040] Figure 2 for Figure 1 The schematic diagram after omitting the outer sleeve;

[0041] Figure 3 for Figure 2 The schematic diagram after the inner tube is omitted;

[0042] Figure 4 for Figure 3 The lower half of the figure is a schematic diagram after the fixing sleeve is omitted;

[0043] Figure 5 for Figure 3 The handle portion in the figure is a schematic diagram after omitting the handle housing;

[0044] Figure 6 This is a schematic diagram of the lock gear, the push handle joint cavity, and the vehicle body connection seat;

[0045] Figure 7 for Figure 6 Schematic diagram of the lower half of the figure;

[0046] Figure 8 for Figure 7 Schematic diagram from another perspective;

[0047] In the figure,

[0048] 10. Handle; 11. Inner tube; 12. Outer tube;

[0049] 1. Unlocking mechanism; 1-1. Unlocking button; 1-2. Push block; 1-2a. Avoidance hole; 1-2b. Sink; 1-2c. Inclined groove wall; 1-3. Driving button; 1-3a. Inclined driving surface; 1-4. Third spring;

[0050] 21. First push rod; 22. First push block; 23. Push plate; 231. Drive slot; 232. Guide hole; 233. Mounting shaft; 24. Lock tongue; 241. Drive pin; 25. First spring;

[0051] 31. Second push rod; 32. Second push block; 321. Second limiting end surface; 33. Second spring; 34. Unlocking drive member; 341. Slope drive surface;

[0052] 40. Fixed sleeve; 41. Fixed block; 42. First limiting end face.

[0053] 13. Joint cavity;

[0054] a. Locking gear; a-1. Engaging teeth; b. Slot; c. Fourth spring;

[0055] 100. Connecting socket. DETAILED DESCRIPTION

[0056] The present invention will be further described below with reference to the accompanying drawings.

[0057] To facilitate understanding of the present invention, various embodiments defined in the claims of the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings, which contain various specific details to assist in such understanding, but these details should be considered as merely exemplary. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Accordingly, those of ordinary skill in the art will recognize that changes and improvements may be made to the various embodiments described herein without departing from the scope of the present invention as defined by the appended claims. In addition, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

[0058] It will be apparent to those skilled in the art that the following description of various embodiments of the present invention is provided for the purpose of illustration only and not for the purpose of limiting the invention as defined by the appended claims.

[0059] Throughout the specification and claims of this application document, the words "comprise" and "include" and variations of the words, such as "including" and "comprising" mean "including but not limited to", and are not intended to (and will not) exclude other components, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention will be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

[0060] It should be understood that the singular forms "a", "an", and "the" include plural references unless the context clearly dictates otherwise. The expressions "including" and / or "may include" as used in the present invention are intended to indicate the presence of corresponding functions, operations, or elements, and are not intended to limit the presence of one or more functions, operations, and / or elements. In addition, in the present invention, the terms "including" and / or "having" are intended to indicate the presence of the characteristics, quantities, operations, elements, and components disclosed in the application documents, or a combination thereof. Therefore, the terms "including" and / or "having" should be understood as additional possibilities of the presence of one or more other characteristics, quantities, operations, elements, and components, or a combination thereof.

[0061] In the present invention, the expression "or" includes any or all combinations of the words listed together. For example, "A or B" may include A or B, or may include both A and B.

[0062] It should be understood that when an element is referred to as being “fixed to” another element, it can be directly on the other element or there may also be an intervening element; when an element is considered to be “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or there may also be an intervening element.

[0063] The terms "up", "down", "left", "right", etc. mentioned in the text are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with the context of the relevant art and this specification, and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0065] like Figures 1-4 As shown, in one embodiment of the present invention, a push handle structure is provided, comprising:

[0066] The handle 10 is connected to the upper end of the inner tube 11, and the inner tube 11 is provided with an outer tube 12;

[0067] The unlocking push mechanism 1 is embedded in the handle 10 from above and can move along the direction of embedding inside the handle 10;

[0068] A first push rod 21, one end of which is connected to the unlocking push mechanism 1, and the other end of which extends away from the handle 10, and the first push rod 21 is disposed in the inner tube 11;

[0069] A second push rod 31 , one end of which is connected to the unlocking push mechanism 1 , and the other end of which extends away from the handle 10 , and the second push rod 31 is disposed in the inner tube 11 ;

[0070] A push plate 23 is connected to the other end of the first push rod 21 away from the handle 10, and a driving groove 231 is provided on the surface of the push plate 23;

[0071] The locking tongue 24 is connected to the driving groove 231 via a driving pin 241. The locking tongue 24 passes through the wall of the outer tube 12 from the inside to the outside, thereby locking the relative position between the inner tube 11 and the outer tube 12;

[0072] An unlocking drive member 34 is connected to the other end of the second push rod 31 away from the handle 10 and can be moved in a direction away from the handle 10 under the push of the second push rod 31. The side of the unlocking drive member 34 has a sloped driving surface 341 that forms an angle with the moving direction of the unlocking drive member 34, which is used to push the locking mechanism in a direction away from the push handle structure via the sloped driving surface 341 when the unlocking drive member 34 moves;

[0073] When the handle length needs to be adjusted, the push plate 23 is pushed away from the handle 10 by the first push rod 21, and the drive pin 241, pushed by the walls of the drive slot 231, drives the lock tongue 24 to retract into the interior of the outer tube 12. In this embodiment, the unlocking mechanism 1 can drive the two push rods to move separately and perform different unlocking actions. In the locked state, the lock tongue 24 passes through the wall of the outer tube 12, thereby locking the relative position of the inner tube 11 and the outer tube 12. At this time, the handle structure itself is stable and its length remains unchanged. A locking mechanism at the distal end, such as a lock buckle, can lock the handle to the stroller body, thereby maintaining the spatial position of the entire handle structure stable and unchanged.

[0074] When the length of the push handle needs to be adjusted, the push plate 23 moves in the direction away from the handle 10 under the push of the first push rod 21, and the driving pin 241 drives the locking tongue 24 to move in the direction of retracting into the outer tube 12 into the inner tube 11 under the push of the groove wall of the driving groove 231, so that the inner tube 11 and the outer tube 12 are no longer locked together, and the outer tube 12 can be moved along the length direction to change the relative position of the inner tube 11 and the outer tube 12, as well as the overall length of the push handle structure; and the second push rod 31 pushes the unlocking drive member 34 to move in the direction away from the handle 10. When the unlocking drive member 34 moves, the locking mechanism is pushed away from the push handle structure and the unlocking drive member 34 through the sloped driving surface 341, thereby releasing the lock between the push handle and the stroller body. At this time, the spatial position of the push handle structure as a whole relative to the stroller body can be flexibly adjusted, such as rotating and folding the push handle.

[0075] In this embodiment, when locked, a locking mechanism, such as a latch, at the distal end locks the handle to the stroller body, thereby ensuring that the handle maintains a stable spatial position relative to the stroller body and does not wobble. Furthermore, the locking tongue 24 locks the relative positions of the inner tube 11 and the outer tube 12. The handle maintains a stable structure, and its length and overall appearance remain unchanged, ensuring safe use. Unlocking is convenient. After the locking tongue 24 is unlocked, the inner tube 11 and the outer tube 12 are no longer locked together, allowing the outer tube 12 to be moved lengthwise to change their relative position, thereby changing the handle's structure and overall length. When the unlocking driver 34 pushes the locking mechanism open via the sloped driving surface 341, the lock between the handle and the stroller body is released, allowing the handle to be flexibly rotated to change its overall spatial position.

[0076] In this embodiment, when unlocking is required, it is only necessary to operate the unlocking button mechanism 1. During operation, the unlocking can be done by directly holding the push handle. The hand does not need to move to other parts of the push handle for operation. The operation is extremely convenient and labor-saving. The locking and unlocking operations are fast and the response is timely.

[0077] refer to Figure 5In some embodiments, the unlocking button mechanism 1 includes:

[0078] Unlock button 1-1, located above the first push rod 21 and the second push rod 31;

[0079] A push block 1-2 is provided between the unlock button 1-1 and the push rod. A drive surface of the push block 1-2 facing away from the unlock button 1-1 is provided with an avoidance hole 1-2a, and a surface of the push block 1-2 is provided with a sinking groove 1-2b, and the sinking groove 1-2b has an inclined groove wall surface 1-2c;

[0080] The driving button 1-3 is inserted into the sinking groove 1-2b, and the inclined driving surface 1-3a on the surface of the driving button 1-3 is in contact with the inclined groove wall 1-2c;

[0081] The driving button 1-3 is configured to be movable in a direction of being inserted into the sink 1-2b, so that the inclined driving surface 1-3a and the inclined groove wall surface 1-2c slide relative to each other, thereby driving the push block 1-2 to move, so that the unlocking button mechanism switches between the first driving position and the second driving position;

[0082] When the unlocking push mechanism 1 is in the first driving position, the driving surface abuts against the first push rod 21, and the avoidance hole 1-2a is opposite to the second push rod 31;

[0083] When the unlocking push mechanism 1 is in the second driving position, the driving surface abuts against the second push rod 31 , and the avoidance hole 1 - 2 a faces the first push rod 21 .

[0084] Specifically, under normal conditions, the unlocking mechanism 1 is in the first driving position. At this time, the driving surface of the push block 1-2 abuts against the first push rod 21, and the avoidance hole 1-2a faces the second push rod 31. Pressing the unlocking button 1-1 downward can push the first push rod 21 downward.

[0085] The driving button 1-3 can move along the direction of being inserted into the sink groove 1-2b. When the driving button 1-3 is pressed, the inclined driving surface 1-3a and the inclined groove wall surface 1-2c slide relative to each other, thereby driving the push block 1-2 to move, so that the unlocking button mechanism 1 reaches the second driving position. At this time, the avoidance hole 1-2a of the push block 1-2 is opposite to the first push rod 21, and the driving surface of the push block 1-2 is against the second push rod 31. Pressing the unlocking button 1-1 downward can push the second push rod 31 downward.

[0086] The unlocking mechanism of this embodiment has a simple structure, an ingenious design and does not take up space. Through a simple design, one unlocking button 1 - 1 can be used to drive two push rods to move respectively; the structure is stable and there will be no misoperation.

[0087] When operating the unlocking button mechanism to switch between the first driving position and the second driving position, the unlocking can be achieved by directly holding the push handle. The hand does not need to move to other parts of the push handle for operation, which is extremely convenient and labor-saving.

[0088] refer to Figure 5 In some embodiments, a third spring 1-4 is further included, which is provided at one end of the push block 1-2 along the moving direction, and is used to compress and accumulate elastic potential energy when the push block 1-2 moves to the second driving position, and release the elastic potential energy and restore the initial length when the driving button 1-3 is released to drive the push block 1-2 to move in the opposite direction to reach the first driving position.

[0089] The third spring 1-4 of this embodiment can be shortened by the thrust when the driving button 1-3 is pressed and the push block 1-2 moves, and accumulate elastic potential energy. When the driving button 1-3 is released, the length becomes longer and pushes the push block 1-2 to move in the opposite direction to reach the first driving position, thereby eliminating the need to manually pull out the driving button 1-3, which is beneficial to saving operating steps and realizing automatic operation. Figure 4 In some embodiments, the driving groove 231 is a linear groove, and in the direction from the handle 10 to the locking tongue 24, the driving groove 231 gradually extends toward the pipe wall.

[0090] Specifically, the driving groove 231 gradually extends outward in the direction from the handle 10 to the locking tongue 24. When the first push rod 21 pushes the push plate 23 to move away from the handle 10, the groove wall of the driving groove 231 will push the driving pin 241 and the locking tongue 24 to move in the direction of retracting the inner tube 11 into the inner tube 11, so that the inner and outer tubes 12 are no longer locked together, and unlocking is achieved.

[0091] The driving slot 231 provided in this embodiment has a simple structure. The driving slot 231 pushes the driving pin 241 effortlessly, and can efficiently drive the lock tongue 24 to unlock.

[0092] refer to Figure 4 In some embodiments, there are two driving slots 231 and two locking tongues 24 installed in conjunction with the driving slots 231 , which are symmetrically arranged on the push plate 23 .

[0093] Specifically, the two drive slots 231 on the push plate 23 form an "eight" shape. When the first push rod 21 pushes the push plate 23 away from the handle 10, the walls of the two drive slots 231 simultaneously push the drive pins 241 and the locking tongues 24 on either side to retract into the inner tube 11, thereby freeing the inner tube 11 and the outer tube 12 from being locked together and unlocking the handle. The bilaterally symmetrical drive slots 231 and locking tongues 24 can lock the relative position of the inner tube 11 and the outer tube 12 from both sides, ensuring a more stable structure, shape, and appearance of the push handle.

[0094] refer to Figure 3-Figure 4 In some embodiments, a guide hole 232 is provided in the middle of the push plate 23 along the length direction of the first push rod 21 for the installation shaft 233 of the push plate 23 to pass through; when the push plate 23 is driven to move, the guide hole 232 is used to slide relative to the installation shaft 233 to provide guidance for the movement of the push plate 23.

[0095] Specifically, in this embodiment, the mounting shaft 233 can provide guidance for the push plate 23 when it moves, thereby preventing the push plate 23 from deviating from a preset direction when it moves.

[0096] refer to Figure 3-Figure 4 , in some embodiments, further comprising:

[0097] The first push block 22 is sleeved on the end of the first push rod 21 away from the handle 10;

[0098] The fixing sleeve 40 is sleeved on the push plate 23 and the lock tongue 24, and a through hole is provided on the surface of the fixing sleeve 40 for the lock tongue 24 to extend out;

[0099] The first spring 25 is provided between the first push block 22 and the fixed sleeve 40, and one end of the first spring 25 is against the push block, and the other end of the first spring 25 is embedded in the fixed sleeve 40, and is used to shorten and accumulate elastic potential energy when the first push rod 21 is driven to move downward, and to lengthen and push the first push block 22 to move in the opposite direction and reset when the first push rod 21 is no longer driven.

[0100] The fixing sleeve 40 of this embodiment can provide protection for the lock tongue 24 and the push plate 23; the first spring 25 can be shortened by the thrust when the first push block 22 moves and accumulate elastic potential energy, and when the first push rod 21 is no longer driven, the length becomes longer and pushes the first push block 22 to move in the opposite direction and reset, thereby eliminating the need for manual reset, which is beneficial to saving operating steps and realizing automatic operation.

[0101] refer to Figure 3-Figure 4 , in some embodiments, further comprising:

[0102] The second push block 32 is sleeved on the end of the second push rod 31 away from the handle 10;

[0103] The second spring 33 is arranged between the side of the second push block 32 facing away from the unlocking drive member 34 and the fixed block 41, and is used to be stretched and accumulate elastic potential energy when the second push rod 31 is driven to move downward, and when the second push rod 31 is no longer driven, the length becomes shorter and drives the second push block 32 and the second unlocking button 30 to move in the opposite direction and reset.

[0104] Specifically, the fixing block 41 is fixed to the fixing sleeve 40, and its position remains fixed. The second spring 33 of this embodiment is stretched and accumulates elastic potential energy when the second push rod 31 is driven downward. When the second push rod 31 is no longer driven, its length returns to its original length, pushing the second push block 32 and the second push rod 31 to move in the opposite direction and reset. This eliminates the need for manual reset, saving steps and enabling automated operation.

[0105] refer to Figure 2 In some embodiments, the fixing sleeve 40 is provided with a first limiting end surface 42 on the side facing away from the unlocking driving member 34; the second pushing block 32 is provided with a second limiting end surface 321 opposite to the first limiting end surface 42, and the first limiting end surface 42 is used to abut against the second limiting end surface 321 when the second pushing block 32 is driven to move a preset distance in the direction away from the handle 10 to limit excessive movement of the second pushing block 32.

[0106] In this embodiment, the second limiting end surface 321 opposite to the first limiting end surface 42 can limit the excessive movement of the second push block 32, so that it can only move a preset distance, avoiding it from being uncontrollable after moving too long a distance, and ensuring that the second push block 32 can be reset normally without being damaged.

[0107] refer to Figure 6-Figure 8 In some embodiments, the locking mechanism comprises:

[0108] The locking gear a is provided with a plurality of engaging teeth a-1 distributed circumferentially; the two ends of each engaging tooth a-1 in the longitudinal direction are respectively embedded in the connecting seat 100 of the vehicle body and the slot b in the joint cavity 13 of the push handle, thereby locking and connecting the vehicle body and the push handle;

[0109] The unlocking drive member 34 is placed between the locking gear a and the connecting seat 100. In the locked state, the inclined surface of the locking gear a facing the unlocking drive member 34 is in contact with the sloped driving surface 341; when the unlocking drive member 34 moves downward, the inclined surface of the locking gear a slides relative to the sloped driving surface 341 and is pushed into the push handle joint cavity 13.

[0110] Specifically, in the locked state, the locking gear a at the distal end of this embodiment can securely lock the push handle joint cavity 13 and the vehicle body connection seat 100 together through the structure of the engaging teeth a-1, thereby ensuring that the spatial position of the push handle as a whole relative to the vehicle body remains stable and does not shake, and the locking mechanism design is firm and reliable.

[0111] When unlocking is required, the unlocking drive member 34 pushes the locking gear a away through the sloped driving surface 341 to release the lock between the push handle and the baby stroller body. Then the push handle can be flexibly rotated and the spatial position of the push handle structure relative to the stroller body can be adjusted, such as rotating the folding push handle. The unlocking response is efficient and fast.

[0112] refer to Figure 7 and Figure 8 In some embodiments, a fourth spring c is further included, which is arranged in the joint cavity 13 and has its two ends respectively against the inner wall of the joint cavity 13 and the locking gear a, and is used to compress and accumulate elastic potential energy when the locking gear a is driven to move into the joint cavity 13, and release the elastic potential energy and restore the initial length when the unlocking drive member 34 is released to drive the locking gear a to move in the opposite direction to the initial position.

[0113] The fourth spring c of this embodiment can be shortened by the thrust and accumulate elastic potential energy when the drive button 1-3 is pressed and the locking gear a moves, and when the unlocking drive member 34 is released, the length becomes longer and pushes the locking gear a to move back to the initial position, thereby eliminating the need to design other reset mechanisms or manually reset the locking gear a, which is conducive to structural simplification, saving operating steps and realizing automatic operation.

[0114] In one embodiment of the present invention, a baby stroller is provided, comprising the above-mentioned push handle structure.

[0115] In the above description, although expressions such as "first" and "second" may be used to describe various elements of the present invention, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of the corresponding elements. The above expressions are used to distinguish one component from another.

[0116] The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. A singular expression includes a plural expression unless there is a significant difference in context or scheme between them.

[0117] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

[0118] Those skilled in the art will understand that the various technical features of the above-described embodiments may be omitted, added, or combined in any manner accordingly. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, and simple transformation methods that can be thought of by those skilled in the art, as well as solutions for making adaptive and functional structural transformations of existing technologies, should be considered to be within the scope of this specification.

[0119] The embodiments described above merely represent several implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patented invention. It should be noted that while the present invention has been shown and described with reference to various embodiments, it will be apparent to those skilled in the art that various variations and improvements in form and detail may be made without departing from the spirit of the present invention, and without departing from the scope of the present invention as defined by the appended claims, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patented invention shall be based on the appended claims.

Claims

1. A push handle structure, characterized in that: include: A handle is connected to the upper end of the inner tube, and an outer tube is provided on the outer surface of the inner tube; An unlocking push mechanism is embedded in the handle from above and can move along the direction of embedding inside the handle, and is used to drive the first push rod and the second push rod to move downward respectively; a first push rod, one end of which is connected to the unlocking push mechanism and the other end of which extends away from the handle, wherein the first push rod is disposed in the inner tube; a second push rod, one end of which is connected to the unlocking push mechanism and the other end of which extends away from the handle, the second push rod being disposed in the inner tube; a push plate connected to the other end of the first push rod away from the handle, and a driving groove is provided on the surface of the push plate; A locking tongue is connected to the driving groove via a driving pin, and the locking tongue passes through the wall of the outer tube from the inside to the outside to lock the relative position between the inner tube and the outer tube; An unlocking drive member is connected to the other end of the second push rod away from the handle and can move in a direction away from the handle when the second push rod is pushed downward by the unlocking pressing mechanism. The side surface of the unlocking drive member has a sloped driving surface that is angled with the moving direction of the unlocking drive member, and is used to push the locking mechanism in a direction away from the push handle structure to achieve unlocking when the unlocking drive member moves. When the lock between the inner tube and the outer tube needs to be released, the push plate moves away from the handle under the pushing action of the first push rod, and the driving pin drives the lock tongue to move in the direction of retracting into the inner part of the outer tube under the pushing action of the groove wall of the driving groove; The unlocking push mechanism comprises: an unlocking button, disposed above the first push rod and the second push rod; A push block is provided between the unlocking button and the push rod, wherein a driving surface of the push block on a side away from the unlocking button is provided with an avoidance hole, and a surface of the push block is provided with a sinking groove having an inclined groove wall surface; A driving button is inserted into the sink, and the inclined driving surface of the driving button is in contact with the wall of the inclined groove; The driving button is configured to be movable in a direction of being inserted into the sink, so that the inclined driving surface and the inclined groove wall slide relative to each other, thereby driving the push block to move, so that the unlocking button mechanism switches between a first driving position and a second driving position; When the unlocking push mechanism is in the first driving position, the driving surface abuts against the first push rod, and the avoidance hole faces the second push rod; When the unlocking push mechanism is in the second driving position, the driving surface abuts against the second push rod, and the avoidance hole is opposite to the first push rod; In the direction from the handle to the locking tongue, the driving groove extends toward the wall of the outer sleeve.

2. The push handle structure according to claim 1, characterized in that: The driving groove is a linear groove.

3. The push handle structure according to claim 1, characterized in that: There are two driving grooves and two locking tongues matched with the driving grooves, which are symmetrically arranged on the push plate.

4. The push handle structure according to claim 1, characterized in that: A guide hole is provided in the middle of the push plate along the length direction of the first push rod for the installation shaft of the push plate to pass through; when the push plate is driven to move, the guide hole is used to slide relative to the installation shaft to provide guidance for the movement of the push plate.

5. The push handle structure according to claim 1, characterized in that: Also includes: A first push block is sleeved on an end of the first push rod away from the handle; A fixed sleeve is sleeved on the push plate and the lock tongue, and a through hole is provided on the surface of the fixed sleeve for the lock tongue to extend out; The first spring is arranged between the first push block and the fixed sleeve, with one end of the first spring against the push block and the other end embedded in the fixed sleeve, and is used to shorten when the first unlocking button is pressed and accumulate elastic potential energy, and to lengthen when the first unlocking button is released and push the first push block in the opposite direction to drive the first unlocking button to move in the opposite direction and reset.

6. The push handle structure according to claim 5, characterized in that: Also includes: A second push block is sleeved on an end of the second push rod away from the handle, and the unlocking drive member is provided on an end of the second push block away from the handle; The second spring is arranged between the fixed block and the side of the second push block facing away from the unlocking drive member, and is used to be stretched and accumulate elastic potential energy when the second unlocking button is pressed and the second push block moves, and shortens when the second unlocking button is released, and drives the second push block and the second unlocking button to move in the opposite direction and reset.

7. The push handle structure according to claim 6, characterized in that: The fixing sleeve is provided with a first limiting end surface on the side facing away from the unlocking driving member; the second pushing block is provided with a second limiting end surface opposite to the first limiting end surface, and the first limiting end surface is used to abut the second limiting end surface when the second pushing block is driven to move a preset distance away from the handle to limit excessive movement of the second pushing block.

8. The push handle structure according to claim 1, characterized in that: The locking mechanism comprises: The locking gear is provided with a plurality of engaging teeth distributed circumferentially; the two ends of each engaging tooth in the length direction are respectively embedded in the connecting seat of the vehicle body and the slot in the joint cavity of the push handle, thereby locking and connecting the vehicle body and the push handle; The unlocking drive member is placed between the locking gear and the connecting seat. In the locked state, the inclined surface of the locking gear facing the unlocking drive member is in contact with the sloped driving surface; when the unlocking drive member moves downward, the inclined surface of the locking gear and the sloped driving surface slide relative to each other and are pushed into the push handle joint cavity.

9. A baby carriage, characterized in that: The push handle structure comprises the push handle structure as described in any one of claims 1-8.

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