Baby carriage brake

Abstract

The invention relates to the technical field of baby carriages, in particular to a baby carriage brake which comprises a baby carriage body and a frame, mounting sleeves are fixedly connected to the two ends of one side of the lower end of the frame, a speed reduction rod is fixedly connected to the middles of the two mounting sleeves, and the two ends of the speed reduction rod penetrate through the mounting sleeves; one side of the mounting sleeve is rotationally connected with rear wheels in a clamped mode, brake bodies are fixedly connected to the middles of the two rear wheels, a plurality of inserting holes are evenly formed in the outer sides of the end faces of the sides, close to the mounting sleeve, of the brake bodies at intervals, and limiting assemblies are arranged at the two ends of one side of the speed reduction rod. The limiting assembly is used for controlling whether the rear wheel can rotate or not, and the limiting assembly comprises an insertion rod and a trigger module. Compared with the prior art, the problem that in the prior art, a baby carriage adopts a sensor to control a brake to work, and consequently the brake cannot work normally under the electromagnetic environment condition is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of baby carriages, and in particular to a brake for a baby carriage. Background Art

[0002] In the design and manufacturing process of baby strollers, brakes are important components to ensure the safety of babies. Their performance and reliability are directly related to the safety of babies during use. With the advancement of science and technology and the improvement of people's living standards, the requirements for the brake system of baby strollers are also increasing. Not only are the braking effects required to be stable and reliable, but they are also required to be easy to operate and highly intelligent.

[0003] In the prior art, a Chinese patent document with publication number CN205780451U proposes an automatic brake for a baby stroller, including wheels, an axle cover module, a guide rod fixing fork, a wheel axle, a wheel groove, a threaded motor, an I-shaped piece, a compression spring, an I-shaped piece end cover, a limit switch, and a guide rod. At present, there are some baby stroller designs on the market that detect the hand state by cooperating with sensors on the baby stroller armrests to achieve the automatic brake function when the hands are released. These designs have improved the safety of baby strollers to a certain extent, but their performance may be affected to a certain extent under certain environmental conditions. Specifically, although the sensor technology can work reliably under normal circumstances, in certain specific environments, such as areas with slight electromagnetic interference (such as the electromagnetic environment of some city centers), the normal operation of the sensor may be interfered to a certain extent, and this interference may cause signal distortion or misjudgment. For example, electromagnetic interference may cause a slight deviation in the data received by the sensor, thereby triggering unnecessary braking actions or failing to respond to real dangerous situations in a timely manner in certain cases. In addition, the performance stability, durability, and installation location of the sensor itself are also key factors affecting the reliability of the automatic brake system, making it difficult for the brake function to work normally and unable to ensure the safety of the baby inside the baby stroller.

[0004] Furthermore, we disclose a baby stroller brake to meet the actual demand that the baby stroller in the prior art uses sensors to control the brake to work, resulting in the brake not being able to work normally under electromagnetic environment conditions. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a baby stroller brake to solve the problem in the prior art that the baby stroller uses a sensor to control the brake to work, resulting in the brake not being able to work normally under electromagnetic environment conditions.

[0006] Based on the above purpose, the present invention provides a brake for a baby stroller, comprising a baby stroller body and a frame, wherein both ends of one side of the lower end of the frame are fixedly connected with mounting sleeves, the middle parts of the two mounting sleeves are fixedly connected with deceleration rods and both ends of the deceleration rods penetrate the mounting sleeves, one side of the mounting sleeve is engaged and rotatably connected with the rear wheel, the middle parts of the two rear wheels are fixedly connected with a brake body, a plurality of insertion holes are evenly spaced outside the end surface of one side of the brake body close to the mounting sleeve, and both ends of one side of the deceleration rod are provided with a limit assembly, the limit assembly is used to control whether the rear wheel can rotate, the limit assembly includes an insertion rod and a trigger module, a conical block is contacted between the two insertion rods, the conical block is used to control the insertion rod to slide and insert one end of the insertion rod into the inside of the insertion hole, the trigger module is used to drive the conical block to rise and fall, a deceleration assembly is provided inside the brake body, the deceleration assembly is used to reduce the rotation speed of the rear wheel when the rotation speed of the rear wheel is faster, and the deceleration rod penetrates one end of the mounting sleeve and extends into the deceleration assembly in the brake body.

[0007] Preferably, the insertion rod is slidably connected to one side of the mounting sleeve, the insertion rod is slidably connected to one side of the mounting sleeve, one side of the outer wall of the speed reduction rod is fixedly connected to the limit seat, the insertion rod passes through and is slidably connected to the inside of the limit seat, a return spring is fixedly connected to the outer side of one end surface of the limit seat located on the mounting sleeve, one end of the return spring is fixedly connected to a sleeve plate, the sleeve plate is fixedly connected to the insertion rod, the conical block is small at the bottom and large at the top, grooves are provided in the middle of the end surfaces of both sides of the conical block, a rounded corner is provided at the corner of one end of the insertion rod away from the mounting sleeve, and the end of the insertion rod with the rounded corner is clamped in the groove.

[0008] Preferably, the trigger module includes a push rod slidably connected to the middle part of the upper end of the frame, both sides of the interior of the frame are fixedly connected with a rotating seat, the interiors of the two rotating seats are rotatably connected with a second rotating rod, one end face of the second rotating rod close to the side of the rotating seat is fixedly connected with a tensioning spring, one end of the tensioning spring is fixedly connected to the frame, a sliding groove is provided on the end face of the second rotating rod close to the push rod, a sliding block is slidably connected to the interior of the sliding groove, and one end face of the sliding block is rotatably connected to the ball head on one end of the push rod passing through the frame.

[0009] Preferably, one side of the lower end of the two second rotating rods is fixedly connected to a fixing rod, the fixing rod is located on one side of the rotating seat, the lower ends of the two fixing rods penetrate the rotating seat and the lower end of one of the fixing rods is fixedly connected to a driving gear, the middle part of the outer wall of the two fixing rods is engaged and rotatably connected with a limiting plate near the lower end, one side of the driving gear is meshed and connected with a driven gear, and the lower end of the fixing rod on the side away from the driving gear is fixedly connected with a driven gear, the lower ends of the two driven gears are fixedly connected to a driving sprocket through a coupling, and the outer sides of the two driving sprockets are provided with chains.

[0010] Preferably, the middle part of the chain is transmission connected with a driven sprocket, the middle part of the upper end surface of the driven sprocket is engaged and rotatably connected with a limit plate, the middle part of the lower end surface of the driven sprocket is fixedly connected with a lifting rod, the lower end of the outer wall of the lifting rod is provided with a connecting thread, the lower end of the lifting rod is transmission connected with a connecting plate through the connecting thread, the lower end of the lifting rod passes through the connecting plate and is fixedly connected with an anti-stripping plate, the lower end of the connecting plate is fixedly connected with a sliding rod on the side away from the anti-stripping plate, the lower end of the sliding rod is fixedly connected with a conical block, and the rotation angle of the second rotating rod is set in a certain proportion to the rising distance of the conical block.

[0011] Preferably, a fixing plate is fixedly connected to one side of the middle portion of the lower end of the frame, and the sliding rod is slidably connected to one end of the fixing plate.

[0012] Preferably, the deceleration assembly includes a brake sleeve fixedly connected to the outer walls of both ends of the deceleration rod, a deceleration cavity is opened in the inner middle part of the brake body, both ends of the deceleration rod extend into the interior of the deceleration cavity, a plurality of eccentric wheels are evenly spaced inside the deceleration cavity, a first rotating rod is fixedly connected to the interior of the eccentric wheel, the first rotating rod is arranged on one side of the axis of the eccentric wheel, both ends of the first rotating rod pass through the eccentric wheel, both ends of the first rotating rod extend into the interior of the brake body and are sleeved with torsion springs.

[0013] Preferably, a spring sheet is fixedly connected to one side of the outer wall of the eccentric wheel, a brake pad is fixedly connected to one side of the outer wall of the spring sheet, and a counterweight is fixedly connected to one end of the outer wall of the eccentric wheel away from the spring sheet.

[0014] Preferably, the spring sheet is made of elastic material.

[0015] Preferably, the return spring is sleeved on the outside of the insertion rod.

[0016] Beneficial effects of the present invention: Mechanical deceleration and braking: It uses mechanical deceleration components and limit components, which do not rely on electronic sensors or complex electrical control systems. This means that in electromagnetic interference environments, the performance of the brake will not be affected and can work stably and reliably. This feature significantly improves the safety of the stroller. Built-in deceleration mechanism: The deceleration component is designed to automatically start when the rear wheel speed is too fast, slowing down the wheel speed through mechanical action, effectively preventing accidents caused by excessive speed. This built-in deceleration mechanism not only enhances the safety of the stroller, but also reduces the burden on parents during the pushing process; Simple structure and easy maintenance: The structure of the entire brake is relatively simple and mainly consists of mechanical components, so it is easier to maintain. During long-term use, even if parts are worn or fail, they can be quickly replaced or repaired, reducing maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or 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 in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the baby carriage of the present invention; Figure 2 This is a schematic diagram of the installation of the brake body of the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the rear wheel of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the speed reduction component of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention; Figure 7 It is a schematic diagram of a partial three-dimensional structure of a limiting component of the present invention; Figure 8 for Figure 6 The enlarged view of point B in the middle; Fig. 9 for Figure 6 Enlarged view of point C in the middle.

[0019] The markings in the figure are: 1. Baby carriage body; 2. Frame; 3. Speed ​​reduction lever; 4. Mounting sleeve; 5. Rear wheel; 6. Brake body; 7. Insertion rod; 8. Insertion hole; 9. Speed ​​reduction chamber; 10. Eccentric wheel; 11. Torsion spring; 12. First rotating rod; 13. Shrapnel; 14. Brake pad; 15. Brake sleeve; 16. Connecting plate; 17. Anti-slip plate; 18. Connecting thread; 19. Lifting rod; 20. Driven sprocket; 21. Fixing rod ; 22. Push rod; 23. Tension spring; 24. Rotating seat; 25. Second rotating rod; 26. Sliding block; 27. Slide groove; 28. Fixed plate; 29. ​​Sliding rod; 30. Limit seat; 31. Driving gear; 32. Driving sprocket; 33. Chain; 34. Driven gear; 35. Bushing; 36. Return spring; 37. Fillet; 38. Conical block; 39. Groove; 40. Counterweight; 41. Limit plate. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 9As shown, a baby stroller brake comprises a baby stroller body 1 and a frame 2, both ends of one side of the lower end of the frame 2 are fixedly connected with mounting sleeves 4, the middle parts of the two mounting sleeves 4 are fixedly connected with a deceleration rod 3 and both ends of the deceleration rod 3 pass through the mounting sleeves 4, one side of the mounting sleeves 4 is engaged and rotatably connected with a rear wheel 5, the middle parts of the two rear wheels 5 are fixedly connected with a brake body 6, a plurality of insertion holes 8 are evenly spaced outside the end surface of the brake body 6 close to the mounting sleeve 4, and both ends of one side of the deceleration rod 3 are provided with limit assemblies, and the limit The component is used to control whether the rear wheel 5 can rotate. The limit assembly includes an insertion rod 7 and a trigger module. There is a conical block 38 in contact between the two insertion rods 7. The conical block 38 is used to control the sliding of the insertion rod 7 and insert one end of the insertion rod 7 into the inside of the socket 8. The trigger module is used to drive the conical block 38 to rise and fall. A deceleration component is arranged inside the brake body 6. The deceleration component is used to reduce the rotation speed of the rear wheel 5 when the rotation speed of the rear wheel 5 is faster. The deceleration rod 3 passes through one end of the mounting sleeve 4 and extends into the deceleration component in the brake body 6.

[0023] The brake of the baby stroller abandons the reliance on electronic sensors, so it can still work stably and reliably under electromagnetic interference environment conditions. Its built-in deceleration component is combined with the physical contact limit mechanism, which can not only automatically slow down the speed when the wheel speed is too fast, but also achieve effective braking through the direct contact between the plug rod 7 and the socket 8, ensuring the safety performance of the baby stroller in various environments. At the same time, its simple structure and easy maintenance further enhance the convenience and durability of use, providing parents with a safer and more reliable baby stroller choice.

[0024] Further, such as Figures 1 to 3 As shown, the plug rod 7 is slidably connected to one side of the mounting sleeve 4, one side of the outer wall of the deceleration lever 3 is fixedly connected to the limit seat 30, the plug rod 7 passes through and is slidably connected to the inside of the limit seat 30, and a return spring 36 is fixedly connected to the outer side of the end surface of one side of the limit seat 30 located at the mounting sleeve 4, and the return spring 36 is sleeved on the outside of the plug rod 7, and one end of the return spring 36 is fixedly connected to a sleeve plate 35, and the sleeve plate 35 is fixedly connected to the plug rod 7, the conical block 38 is small at the bottom and large at the top, and grooves 39 are provided in the middle of the end surfaces of both sides of the conical block 38, and a fillet 37 is provided at the corner of the end of the plug rod 7 away from the mounting sleeve 4, and the end of the plug rod 7 with the fillet 37 is clamped in the groove 39; The insertion rod 7 is connected to the inside of the mounting sleeve 4 and the limit seat 30 by sliding, thereby realizing flexible control of the rotation of the rear wheel 5. When braking is needed, the trigger module drives the conical block 38 to rise and fall, pushing the insertion rod 7 to overcome the elastic force of the reset spring 36, so that one end of the insertion rod 7 is inserted into the insertion hole 8 of the brake body 6, thereby limiting the rotation of the rear wheel 5 and realizing the braking function. The rounded corner 37 design on the insertion rod 7 helps to reduce friction and resistance during the insertion process and improve the smoothness of operation. It combines the automatic reset function of the mechanical brake and the reset spring 36, which not only ensures the rapidity and accuracy of the braking action, but also can automatically restore to the initial state after the brake is released, so as to facilitate reuse. In addition, the mechanical design enables the brake to be used normally even in an electromagnetic interference environment, greatly improving the safety and reliability of the stroller.

[0025] Further, such as Figure 1 , Figures 6 to 9 As shown, the trigger module includes a push rod 22 slidably connected to the middle part of the upper end of the frame 2, and the frame 2 is fixedly connected to a rotating seat 24 on both sides of the interior, and the second rotating rods 25 are rotatably connected to the interior of the two rotating seats 24. A tension spring 23 is fixedly connected to the side of the second rotating rod 25 near the rotating seat 24, and one end of the tension spring 23 is fixedly connected to the frame 2. A sliding groove 27 is provided on the side of the second rotating rod 25 near the push rod 22, and a slider 26 is slidably connected to the interior of the sliding groove 27. One end surface of the block 26 is rotatably connected to the ball head on one end of the push rod 22 that passes through the frame 2. One side of the lower end of the two second rotating rods 25 is fixedly connected to a fixed rod 21. The fixed rod 21 is located on one side of the rotating seat 24. The lower ends of the two fixed rods 21 pass through the rotating seat 24 and the lower end of one side of the fixed rod 21 is fixedly connected to a driving gear 31. The middle part of the outer wall of the two fixed rods 21 is rotatably connected to a limit plate 41 by the lower end. One side of the driving gear 31 is meshed and connected with a driven gear 34, away from the main gear. A driven gear 34 is fixedly connected to the lower end of the fixed rod 21 on one side of the driven gear 31, and the lower ends of the two driven gears 34 are fixedly connected to the driving sprocket 32 ​​through a coupling shaft. The outer sides of the two driving sprockets 32 are sleeved with a chain 33, and the middle part of the chain 33 is connected to the driven sprocket 20 in a transmission manner. The middle part of the upper end surface of the driven sprocket 20 is engaged and rotatably connected with the limit plate 41, and the middle part of the lower end surface of the driven sprocket 20 is fixedly connected to the lifting rod 19, and the lower end of the outer wall of the lifting rod 19 is provided with a connecting thread 18. The lower end of the lowering rod 19 is connected to the connecting plate 16 through the connecting thread 18, the lower end of the lifting rod 19 penetrates the connecting plate 16 and is fixedly connected to the anti-slip plate 17, the lower end of the connecting plate 16 is fixedly connected to the side away from the anti-slip plate 17, the lower end of the sliding rod 29 is fixedly connected to the conical block 38, the rotation angle of the second rotating rod 25 is set in a certain proportion to the rising distance of the conical block 38, the middle part of the lower end of the frame 2 is fixedly connected to the fixed plate 28, and the sliding rod 29 is slidably connected to one end of the fixed plate 28; When the baby carriage needs to be pushed, the user pushes the push rod 22 located at the upper end of the frame 2 forward, and the ball head end of the push rod 22 is rotatably connected to the slider 26. Due to the gravity of the baby carriage itself, the push rod 22 slides forward on the frame 1. As the push rod 22 moves forward, the slider 26 slides in the slide groove 27, thereby driving the second rotating rod 25 to rotate in the rotating seat 24. This rotation is transmitted to the driving gear 31 and the driven gear 34 through the fixed rod 21. Due to the meshing action of the gears, the two driven gears 34 rotate synchronously, thereby The rotation of the driven gear 34 is transmitted to the driving sprocket 32 ​​through the coupling shaft, and the driving sprocket 32 ​​drives the driven sprocket 20 to rotate through the chain 33. The rotation of the driven sprocket 20 causes the lifting rod 19 at its upper end to rotate. Since the lower end of the lifting rod 19 is threadedly connected to the connecting plate 16 through the connecting thread 18, the connecting plate 16 will move along the axial direction of the lifting rod 19. One side of the lower end of the connecting plate 16 is fixedly connected to the sliding rod 29, so the sliding rod 29 will also move up and down accordingly. The lower end of the sliding rod 29 is fixedly connected to the conical block 38, so The conical block 38 will rise accordingly. When the conical block 38 rises, the insertion rod 7 moves away from the insertion hole 8 under the action of the return spring 36, thereby releasing the limit on the rear wheel 5, allowing the wheel to rotate freely, which is convenient for pushing the baby carriage. Since the rotation angle of the second rotating rod 25 and the rising distance of the conical block 38 are set in a certain ratio, the certain ratio is set so that when the second rotating rod 25 rotates half a circle, the conical block 38 will move four times the rotation distance of the second rotating rod 25, so that the rotation of the second rotating rod 25 can drive the conical block 38 to rotate. 8 rises synchronously and the travel distance can complete the limiting work of the rear wheel 5. On the contrary, when the push rod 22 is no longer pushed, the tension spring 23 will pull the second rotating rod 25 to reset. Through a series of transmissions, the conical block 38 will eventually descend. The inclined surface design of the conical block 38 will push the rounded corner 37 on the insertion rod 7 to move it toward the insertion hole 8 and insert it into the hole, thereby limiting the rear wheel 5 again and realizing the braking function. The function of pushing and moving and stopping by releasing the hand is realized, which greatly improves the safety and convenience of using the baby stroller.

[0026] Further, such as Figure 4 , Figure 5As shown, the deceleration assembly includes a brake sleeve 15 fixedly connected to the outer wall of both ends of the deceleration rod 3, a deceleration cavity 9 is opened in the inner middle part of the brake body 6, both ends of the deceleration rod 3 extend into the interior of the deceleration cavity 9, a plurality of eccentric wheels 10 are evenly spaced inside the deceleration cavity 9, a first rotating rod 12 is fixedly connected inside the eccentric wheel 10, the first rotating rod 12 is arranged on one side of the axis of the eccentric wheel 10, both ends of the first rotating rod 12 penetrate the eccentric wheel 10, both ends of the first rotating rod 12 extend into the interior of the brake body 6 and are sleeved with a torsion spring 11, a spring piece 13 is fixedly connected to one side of the outer wall of the eccentric wheel 10, the spring piece 13 is made of elastic material, a brake pad 14 is fixedly connected to one side of the outer wall of the spring piece 13, and a counterweight 40 is fixedly connected to the end of the outer wall of the eccentric wheel 10 away from the spring piece 13; When the speed of the rear wheel 5 is too fast, the multiple eccentric wheels 10 in the cavity are affected by the centrifugal force as the speed increases. Since the first rotating rod 12 inside the eccentric wheel 10 deviates from its geometric center and is connected to the brake body 6, a certain reset force is maintained by the torsion spring 11. When the centrifugal force is large enough, it will overcome the resistance of the torsion spring 11 and start to rotate. As the eccentric wheel 10 rotates, the brake pad 14 fixed on the other side of the spring 13 gradually approaches and contacts the brake sleeves 15 at both ends of the deceleration lever 3, increasing the contact area between the brake pad 14 and the brake sleeve 15. This process utilizes the eccentric wheel 1 The centrifugal force generated by the displacement of the center of mass during the rotation of the rear wheel 10 enables the brake pad 14 to fit reliably on the brake sleeve 15, generating friction, thereby effectively slowing down the rotation speed of the deceleration lever 3. The deceleration lever 3 remains stationary in the deceleration cavity 9. At the same time, the counterweight 40 at one end of the eccentric wheel 10 away from the spring 13 further enhances the centrifugal force effect, making it easier for the eccentric wheel 10 to rotate at a high speed, ensuring a more significant deceleration effect. In this way, the deceleration component can be automatically started when the speed of the rear wheel 5 is too fast, and a fast and effective deceleration is achieved through mechanical action, thereby improving driving safety.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0028] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A baby stroller brake, characterized in that: The invention comprises a baby carriage body (1) and a frame (2), wherein both ends of one side of the lower end of the frame (2) are fixedly connected to mounting sleeves (4), the middle parts of the two mounting sleeves (4) are fixedly connected to deceleration rods (3), and both ends of the deceleration rods (3) penetrate the mounting sleeves (4), one side of the mounting sleeves (4) is engaged and rotatably connected to a rear wheel (5), the middle parts of the two rear wheels (5) are fixedly connected to a brake body (6), a plurality of insertion holes (8) are evenly spaced on the outer side of an end surface of one side of the brake body (6) close to the mounting sleeve (4), and both ends of one side of the deceleration rod (3) are provided with limit assemblies, and the limit assemblies are used to control Whether the rear wheel (5) can rotate, the limit assembly includes an insertion rod (7) and a trigger module, a conical block (38) is in contact between the two insertion rods (7), the conical block (38) is used to control the insertion rod (7) to slide and insert one end of the insertion rod (7) into the inside of the insertion hole (8), the trigger module is used to drive the conical block (38) to rise and fall, a deceleration assembly is arranged inside the brake body (6), the deceleration assembly is used to reduce the rotation speed of the rear wheel (5) when the rotation speed of the rear wheel (5) is fast, and one end of the deceleration rod (3) passes through the mounting sleeve (4) and extends into the deceleration assembly in the brake body (6).

2. A baby stroller brake according to claim 1, characterized in that: The insertion rod (7) is slidably connected to one side of the mounting sleeve (4); one side of the outer wall of the deceleration rod (3) is fixedly connected to the limit seat (30); the insertion rod (7) passes through and is slidably connected to the inside of the limit seat (30); a return spring (36) is fixedly connected to the outer side of the end surface of one side of the limit seat (30) located on the mounting sleeve (4); one end of the return spring (36) is fixedly connected to a sleeve plate (35); the sleeve plate (35) is fixedly connected to the insertion rod (7); the conical block (38) is smaller at the bottom and larger at the top; grooves (39) are provided in the middle of the end surfaces of both sides of the conical block (38); a rounded corner (37) is provided at the corner of one end of the insertion rod (7) away from the mounting sleeve (4); and the end of the insertion rod (7) with the rounded corner (37) is clamped in the groove (39).

3. A baby stroller brake according to claim 2, characterized in that: The trigger module comprises a push rod (22) slidably connected to the middle part of the upper end of the frame (2); both sides of the frame (2) are fixedly connected to a rotating seat (24); the insides of the two rotating seats (24) are rotatably connected to a second rotating rod (25); one end surface of the second rotating rod (25) close to the rotating seat (24) is fixedly connected to a tension spring (23); one end of the tension spring (23) is fixedly connected to the frame (2); a sliding groove (27) is provided on the end surface of the second rotating rod (25) close to the push rod (22); a slider (26) is slidably connected to the inside of the sliding groove (27); one end surface of the slider (26) is rotatably connected to a ball head on one end of the push rod (22) penetrating the frame (2).

4. A baby stroller brake according to claim 3, characterized in that: One side of the lower end of the two second rotating rods (25) is fixedly connected to a fixed rod (21), the fixed rod (21) is located on one side of the rotating seat (24), the lower ends of the two fixed rods (21) penetrate the rotating seat (24), and the lower end of one of the fixed rods (21) is fixedly connected to a driving gear (31), the middle part of the outer wall of the two fixed rods (21) is engaged and rotatably connected to a limit plate (41) near the lower end, one side of the driving gear (31) is meshedly connected to a driven gear (34), and the lower end of the fixed rod (21) away from the driving gear (31) is fixedly connected to a driven gear (34), the lower ends of the two driven gears (34) are fixedly connected to a driving sprocket (32) via a coupling, and the outer sides of the two driving sprockets (32) are sleeved with chains (33).

5. A baby stroller brake according to claim 4, characterized in that: The middle part of the chain (33) is transmission-connected with a driven sprocket (20), the middle part of the upper end surface of the driven sprocket (20) is engaged and rotationally connected with a limit plate (41), the middle part of the lower end surface of the driven sprocket (20) is fixedly connected with a lifting rod (19), the lower end of the outer wall of the lifting rod (19) is provided with a connecting thread (18), the lower end of the lifting rod (19) is transmission-connected with a connecting plate (16) through the connecting thread (18), the lower end of the lifting rod (19) passes through the connecting plate (16) and is fixedly connected with an anti-slip plate (17), the lower end of the connecting plate (16) is fixedly connected with a sliding rod (29) on a side away from the anti-slip plate (17), the lower end of the sliding rod (29) is fixedly connected with a conical block (38), and the rotation angle of the second rotating rod (25) is set in a certain proportion to the rising distance of the conical block (38).

6. A baby stroller brake according to claim 5, characterized in that: A fixing plate (28) is fixedly connected to one side of the middle portion of the lower end of the vehicle frame (2), and the sliding rod (29) is slidably connected to one end of the fixing plate (28).

7. A baby stroller brake according to claim 6, characterized in that: The deceleration assembly comprises a brake sleeve (15) fixedly connected to the outer walls of both ends of the deceleration rod (3); a deceleration cavity (9) is opened in the inner middle part of the brake body (6); both ends of the deceleration rod (3) extend into the interior of the deceleration cavity (9); a plurality of eccentric wheels (10) are evenly spaced inside the deceleration cavity (9); a first rotating rod (12) is fixedly connected inside the eccentric wheel (10); the first rotating rod (12) is arranged on one side of the axis of the eccentric wheel (10); both ends of the first rotating rod (12) penetrate the eccentric wheel (10); both ends of the first rotating rod (12) extend into the interior of the brake body (6) and are sleeved with a torsion spring (11).

8. The baby stroller brake according to claim 7, characterized in that: A spring sheet (13) is fixedly connected to one side of the outer wall of the eccentric wheel (10), a brake pad (14) is fixedly connected to one side of the outer wall of the spring sheet (13), and a counterweight (40) is fixedly connected to one end of the outer wall of the eccentric wheel (10) away from the spring sheet (13).

9. The baby stroller brake according to claim 8, characterized in that: The spring sheet (13) is made of elastic material.

10. The baby stroller brake according to claim 9, characterized in that: The return spring (36) is sleeved on the outside of the insertion rod (7).

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