Roller linkage mechanism of roller shoe

Abstract

The pulley linkage mechanism comprises a pulley seat, a front wheel carrier, a rear wheel carrier, a tension spring and a linkage frame, the linkage frame is composed of a connecting plate and a linkage arm, the front end and the rear end of the pulley seat are respectively provided with a fixed rotating shaft connected with the front wheel carrier and the rear wheel carrier, and the front end and the rear end of the linkage arm are respectively provided with a movable rotating shaft connected with the front wheel carrier and the rear wheel carrier. The outer wall of the pulley seat is provided with an arc-shaped hole used for limiting the movable rotating shaft from rotating around the fixed rotating shaft. The connecting plate is connected with the fixed rotating shaft at the front end of the pulley seat through a tension spring. The connecting plate and the linkage arms are fixedly connected and integrally formed, the linkage mechanism is firm and stable, the two linkage arms keep synchronous swinging of the foot stool, pulleys on the two sides are not prone to shaking, the gravity center of a user is stable, and sliding is safer; the connecting plate is installed in the containing groove, the connecting plate is not prone to rusting, the connecting plate is not connected with the wall face of the sliding base, the linkage frame drives the wheel frame to be stored smoothly, and operation is easy and saves labor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pulley shoes, in particular to a pulley linkage mechanism of a roller skate. BACKGROUND

[0002] The roller skate is simply provided with a pulley on the sole surface, and can be used for walking and rolling sliding, and meets the requirements of stimulating and entertaining sports, and is deeply loved by contemporary young people. The existing roller skate is provided with a linkage mechanism of a transmission wheel frame and a locking mechanism for controlling the unfolding or folding of the wheel frame, and the linkage mechanism and the locking mechanism are matched to realize the switching of the rolling and walking functions of the roller skate.

[0003] A folding pulley device is disclosed in Chinese patent with the authorization announcement No. CN110833685B, which comprises a front wheel frame, a rear wheel frame, a shell seat, a linkage frame and a switch mechanism. The switch mechanism comprises a locking shaft, the front, middle and rear ends of the linkage frame are horizontally and parallelly provided with a transmission front shaft, a middle shaft and a transmission rear shaft, the linkage frame is provided with a folding clamping hole and an unfolding clamping hole matched with the locking shaft, the shell seat is horizontally and parallelly provided with a first rotary shaft and a second rotary shaft, the shell seat is further provided with a horizontal limiting hole, a vertical limiting hole, a first arc limiting hole and a second arc limiting hole, there is a return spring between the middle shaft and the first rotary shaft, the left and right ends of the front wheel frame are connected with the first rotary shaft and the transmission front shaft, and the left and right ends of the rear wheel frame are connected with the second rotary shaft and the transmission rear shaft. However, the middle shaft penetrates through two linkage plates synchronously, and after repeated unfolding or folding, the middle shaft and the through hole of the linkage plate are prone to wear, the hole diameter of the through hole becomes larger and larger, the connection between the two linkage plates is not firm, the left and right pulleys are prone to shaking during sliding, the center of gravity is unstable during sliding of the user, and there is a safety hazard. In addition, the two ends of the middle shaft are exposed, are affected by road water vapor, and are prone to rust, which increases the friction between the middle shaft and the horizontal limiting hole, causes the wheel frame to be unfolded or folded not smoothly, and makes the operation more and more laborious and the use more and more inconvenient. SUMMARY

[0004] The utility model provides a pulley linkage mechanism of a roller skate to overcome the problem that the connection between the linkage plates is not firm, the center of gravity is unstable, the ends of the middle sole are exposed and prone to rust, the wheel frame is difficult to fold, and the use is inconvenient.

[0005] The utility model adopts the following technical scheme:

[0006] A pulley linkage mechanism of a runaway shoe, comprising a pulley seat, a receiving groove provided in the pulley seat, a front wheel frame, a rear wheel frame, a tension spring and a linkage frame, the linkage frame being composed of a connecting plate and linkage arms arranged in parallel on both ends of the connecting plate, the pulley seat being provided with fixed rotating shafts connecting the front wheel frame and the rear wheel frame at the front end and the rear end respectively, the linkage arms being provided with rotating shafts connecting the front wheel frame and the rear wheel frame at the front end and the rear end respectively, the outer wall of the pulley seat being provided with arc-shaped holes for limiting the rotation of the rotating shafts around the fixed rotating shafts, the connecting plate connecting the fixed rotating shaft at the front end of the pulley seat through the tension spring, the bottom of the receiving groove being provided with strip-shaped holes corresponding to the linkage arms, and the bottom of the front wheel frame and the rear wheel frame being connected with a pulley assembly.

[0007] Further improvement, the rear end of the pulley seat is provided with a limiting hole, a lock rod being inserted into the limiting hole and being liftable, the side of the rear wheel frame being provided with a folding clamping hole for cooperating with the lock rod to fold the pulley assembly, and the upper side of the rear wheel frame being provided with an unfolding clamping hole for cooperating with the lock rod to unfold the pulley assembly.

[0008] Further improvement, the bottom of the receiving groove is provided with strip-shaped holes corresponding to the linkage arms.

[0009] Further improvement, the pulley assembly is composed of a shaft and pulleys rotatably connected to both ends of the shaft.

[0010] Further improvement, the slot of the receiving groove is detachably connected with a cover.

[0011] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages:

[0012] 1. The connecting plate and the linkage arms of the present application are integrally formed, the linkage mechanism is firm and stable, the two linkage arms keep synchronous swinging of the foot frame, the two side pulleys are not easy to shake, the center of gravity of the user is stable, and the sliding is safer.

[0013] 2. The connecting plate of the present application is installed in the receiving groove, the connecting plate is not easy to rust, and the connecting plate is not connected with the wall surface of the sliding seat, the linkage frame transmission wheel frame is saved smoothly, and the operation is simple and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the pulley device of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the pulley device of the utility model after opening the cover.

[0016] Figure 3 It is an explosion schematic diagram of the pulley device of the utility model.

[0017] Figure 4 It is a schematic diagram of the side view structure of the pulley device of the utility model when unfolded.

[0018] Figure 5 is a side view schematic diagram of the folding of the pulley device of the present application.

[0019] Figure 6 is a top view schematic diagram of the pulley device of the present application.

[0020] Figure 7 is a bottom view schematic diagram of the pulley device of the present application.

[0021] Figure 8 is a three-dimensional schematic diagram of the linkage mechanism and the pulley assembly of the present application.

[0022] Figure 9 is a cross-sectional schematic diagram of the pulley device of the present application along the direction of D-D Figure 6 DETAILED DESCRIPTION

[0023] The specific embodiment of the present application is described below with reference to the accompanying drawings.

[0024] Referring to Figures 1-3 , the linkage mechanism of the present application is installed in the pulley device, wherein the pulley device comprises a pulley assembly, a linkage mechanism, a locking mechanism and a pulley seat 1, the pulley seat 1 is provided with a receiving groove 10, and the slot opening of the receiving groove 10 is detachably connected with an upper cover 11; the upper cover 11 is connected with the pulley seat 1 through screws, which is convenient for the maintenance of the accessories in the pulley seat 1.

[0025] Referring to Figure 2 , Figure 3 and Figure 9 ​, the linkage mechanism comprises the front wheel frame 2, the rear wheel frame 3, the tension spring 53 and the linkage frame 5, the linkage frame 5 is installed in the accommodating groove 10, the linkage frame 5 is composed of the connecting plate 52 and the linkage arms 51 arranged in parallel at two ends of the connecting plate 52, the connecting plate 52 and the linkage arms 51 are integrally formed in H shape, the connecting plate 52 enables the linkage arms 51 to move forward and backward synchronously, and the linkage frame 5 is installed in the pulley seat 1 and is not easy to be affected by dust blockage. The front end and the rear end of the pulley seat 1 are respectively provided with the fixed rotating shaft 12 connected with the front wheel frame 2 and the rear wheel frame 3, the front wheel frame 2 and the rear wheel frame 3 are distributed on the left side and the right side of the pulley seat 1, the fixed rotating shaft 12 extends outward from the inside of the pulley seat 1, and the front wheel frame 2 and the rear wheel frame 3 are rotatably connected with the outer end of the fixed rotating shaft 12. The front end and the rear end of the linkage arm 51 are respectively provided with the movable rotating shaft 13 connected with the front wheel frame 2 and the rear wheel frame 3, the outer wall of the pulley seat 1 is provided with the arc-shaped hole 102 for limiting the movable rotating shaft 13 from rotating around the fixed rotating shaft 12, the movable rotating shaft 13 penetrates through the arc-shaped hole 102, and the front wheel frame 2 and the rear wheel frame 3 are rotatably connected with the outer end of the movable rotating shaft 13. The arc-shaped hole 102 at the front end of the pulley seat 1 is distributed below the fixed rotating shaft 12 at the front end of the pulley seat 1, and the arc-shaped hole 102 at the rear end of the pulley seat 1 is distributed above the fixed rotating shaft 12 at the rear end of the pulley seat 1, when being folded, the front wheel frame 2 swings backward around the fixed rotating shaft 12 at the front end of the pulley seat 1, the rear wheel frame 3 swings backward around the fixed rotating shaft 12 at the rear end of the pulley seat 1, that is, the front wheel frame 2 and the rear wheel frame 3 swing towards each other. The connecting plate 52 is connected with the fixed rotating shaft 12 at the front end of the pulley seat 1 through the tension spring 53, the connecting plate 52 is provided with a round hole, one end of the tension spring 53 is hooked on the round hole, the other end of the tension spring 53 is connected with the fixed rotating shaft 12, the tension spring 53 is in a stretched state, and the force of the tension spring 53 recovering deformation drives the front wheel frame 2 to swing forward and simultaneously drives the rear wheel frame 3 to swing backward, so that the front wheel frame 2 and the rear wheel frame 3 are automatically unfolded, and the operation is simple and convenient. The groove bottom of the accommodating groove 10 is provided with the strip-shaped hole 103 corresponding to the linkage arm 51, since the front end and the rear end of the linkage arm 51 are curved, the strip-shaped hole 103 facilitates the linkage arm 51 to slide forward and backward, and simultaneously the strip-shaped hole 103 has a sliding rail guiding effect, so that the fixed rotating shaft 12 swings more smoothly in the arc-shaped hole 102, and the bottom of the front wheel frame 2 and the rear wheel frame 3 is connected with the pulley assembly; the pulley assembly comprises the shaft rod 6 and the pulleys 61 rotatably connected at two ends of the shaft rod 6, the shaft rod 6 penetrates through the front wheel frame 2 and the rear wheel frame 3, and the shaft rod 6 is rotatably connected with the front wheel frame 2 and the rear wheel frame 3.

[0026] Continuing with Figure 2 , Figure 3 and Figure 9, the locking mechanism includes the sliding block 4, the compression spring 42, the locking rod 33 and the control rod 43, the middle part of the groove bottom of the accommodating groove 10 is provided with the limiting piece 15, the limiting piece 15 and the inner wall of the accommodating groove 10 are reserved with a gap, the linkage arm 51 respectively penetrates the gap, and the limiting piece 15 does not affect the linkage frame 5 forward and backward sliding. The sliding block 4 is installed at the rear end of the accommodating groove 10, the compression spring 42 is installed between the sliding block 4 and the limiting piece 15, the compression spring 42 is in a compressed state, and the force of the compression spring 42 recovering deformation drives the sliding block 4 to move backward. The pulley seat 1 is provided with a limiting hole 101 for limiting the lifting movement of the locking rod 33, the sliding block 4 is provided with a guide hole 40 for promoting the locking rod 33 to lift and move along the limiting hole 101, the limiting hole 101 is aligned with the guide hole 40, the locking rod 33 synchronously penetrates the limiting hole 101 and the guide hole 40, and the guide hole 40 is upwardly inclined from front to back along the direction of the pulley seat 1. The rear wheel frame 3 side is provided with the folding clamping hole 31 matched with the locking rod 33 to fold the pulley set, and the upper side is provided with the unfolding clamping hole 32 matched with the locking rod 33 to unfold the pulley set. The rear side wall of the pulley seat 1 is provided with a U-shaped hole 104, the control rod 43 is inserted into the U-shaped hole 104 to abut against the sliding block 4 at the inner end, and the control rod 43 is used to push the sliding block 4 to slide forward, so that the above-mentioned locking rod 33 rises along the limiting hole 101, and the locking rod 33 is released from being clamped in the folding clamping hole 31 or the unfolding clamping hole 32.

[0027] The top of the sliding block 4 is provided with a guide groove 41 extending in the front-rear direction, and the bottom surface of the upper cover 11 is provided with a convex rib 111 matched and clamped into the guide groove 41. The cooperation between the convex rib 111 and the guide groove 41 enables the sliding block 4 to keep sliding in a straight line in the front-rear direction, ensures that the elastic force direction of the compression spring 42 to the sliding block 4 does not deviate, and further drives the locking rod 33 to slide upward along the guide hole 40.

[0028] Referring to Figure 5 The lower end of the pulley seat 1 is provided with a recess 14, when folding, the front wheel frame 2 and the rear wheel frame 3 are oscillated towards each other until the pulley assembly falls into the recess 14, and the locking rod 33 is clamped in the folding clamping hole 31.

[0029] Referring to Figure 3 A return spring 431 is sleeved on the control rod 43 to make the control rod 43 extend outward, and the two ends of the return spring 431 abut against the inner wall of the U-shaped hole 104 and the free end of the control rod 43 respectively.

[0030] Continuing to refer to Figure 3 The limiting piece 15 is provided with a screw hole groove, the rear side wall of the pulley seat 1 is also provided with a screw hole groove, the upper cover 11 is connected with the pulley seat 1 by screwing into the screw hole groove, three screw hole connecting lines form a triangular structure, and the upper cover 11 is firmly and stably connected with the pulley seat 1.

[0031] Referring to Figure 7The rear end of the accommodating groove 10 is provided with an opening, and the opening is provided with a lower cover 16. The opening is convenient for checking and maintaining the internal accessories of the pulley seat 1, and the structure is reasonable.

[0032] With reference to Figures 1-9 When the pulley device is unfolded, the user holds the control rod 43 and pushes the slider 4 forward. The inclined lower inner wall of the guide hole 40 pushes the locking rod 33 upward, and the locking rod 33 is driven to rise along the limiting hole 101 to be separated from the folding clamping hole 31. The locking of the rear wheel frame 3 by the locking rod 33 is released, and the restoring force of the tension spring 53 drives the front wheel frame 2 to swing forward. The front wheel frame 2 drives the rear wheel frame 3 to swing backward through the transmission arm 51. The front wheel frame 2 and the rear wheel frame 3 are unfolded in opposite directions. The unfolding clamping hole 32 of the rear wheel frame 3 is aligned with the limiting hole 101. The control rod 43 is released, and the reset spring 431 automatically pushes the control rod 43 outward. The restoring force of the compression spring 42 drives the slider 4 to slide backward. The inclined upper inner wall of the guide hole 40 presses the locking rod 33 downward, and the locking rod 33 is driven to descend along the limiting hole 101 to clamp the unfolding clamping hole 32. The rear wheel frame 3 is prevented from swinging back. The pulley 61 rolls and slides safely and reliably.

[0033] Alternatively, with reference to Figures 1-9 When the pulley device is folded, the user holds the control rod 43 and pushes the slider 4 forward. The inclined lower inner wall of the guide hole 40 pushes the locking rod 33 upward, and the locking rod 33 is driven to rise along the limiting hole 101 to be separated from the unfolding clamping hole 32. The other hand swings the rear wheel frame 3 forward until the pulley assembly falls into the groove 14. The rear wheel frame 3 drives the front wheel frame 2 to swing backward through the transmission arm until the pulley assembly falls into the groove 14. That is, the front wheel frame 2 and the rear wheel frame 3 swing toward each other. The folding clamping hole 31 of the rear wheel frame 3 is aligned with the limiting hole 101. The control rod 43 is released, and the reset spring 431 automatically pushes the control rod 43 outward. The restoring force of the compression spring 42 drives the slider 4 to slide backward. The inclined upper inner wall of the guide hole 40 presses the locking rod 33 downward, and the locking rod 33 is driven to descend along the limiting hole 101 to clamp the folding clamping hole 31. The rear wheel frame 3 is prevented from swinging back. The folding pulley assembly is simple to operate and does not require tools. It can be performed anytime and anywhere, which brings convenience to people's travel.

[0034] The rear end of the control rod 43 is provided with a safety protrusion 111 extending along the length direction of the control rod 43. The safety protrusion 111 is used to prevent the control rod 43 from being inserted inward. The cross section of the safety protrusion 111 and the control rod 43 is shaped like the aperture of the U-shaped hole 104. When the control rod 43 is rotated to offset the aperture of the U-shaped hole 104, the safety protrusion 111 can prevent the control rod 43 from being accidentally touched to cause the pulley 61 to fold, ensuring safer sliding.

[0035] The above merely is the specific implementation manner of the present application, but the design concept of the present application is not limited to this, and any non-essential change of the present application by using the concept should belong to the act of infringing the protection range of the present application.

Claims

1. A roller linkage mechanism of a runaway shoe, comprising a roller seat, a containing groove is arranged in the roller seat, characterized in that: The front wheel frame, the rear wheel frame, the tension spring and the linkage frame are composed of a connecting plate and linkage arms arranged in parallel at both ends of the connecting plate, the front and rear ends of the pulley seat are respectively provided with fixed rotating shafts connected with the front wheel frame and the rear wheel frame, the front and rear ends of the linkage arms are respectively provided with rotating shafts connected with the front wheel frame and the rear wheel frame, the outer wall of the pulley seat is provided with arc-shaped holes for limiting the rotation of the rotating shafts around the fixed rotating shafts, the connecting plate is connected with the fixed rotating shaft at the front end of the pulley seat through the tension spring, the bottom of the accommodating groove is provided with strip-shaped holes corresponding to the linkage arms, and the bottom of the accommodating groove is provided with strip-shaped holes corresponding to the linkage arms.

2. A wheelie shoe wheel linkage as in claim 1, wherein: The rear end of the pulley seat is provided with a limiting hole, a lock rod which can be lifted and lowered is inserted into the limiting hole, the side of the rear wheel frame is provided with a folding clamping hole matched with the lock rod to fold the pulley set, and the upper end of the rear wheel frame is provided with an unfolding clamping hole matched with the lock rod to unfold the pulley set.

3. A wheelie shoe wheel linkage as in claim 1, wherein: The bottom of the accommodating groove is provided with strip-shaped holes corresponding to the linkage arms.

4. A wheelie shoe wheel linkage as in claim 1, wherein: The pulley set is composed of a shaft and pulleys rotatably connected at both ends of the shaft.

5. A wheelie shoe wheel linkage as in claim 1, wherein: The groove of the accommodating groove is detachably connected with an upper cover.

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