Synchronous deformation shoes that avoid accidental contact

Abstract

A synchronously deformable shoe that avoids accidental contact. The triggering deformation position of existing roller skates easily conflicts with the roller skating action, resulting in roller skating accidents caused by accidental accidental contact during the roller skating process. In the present invention, a knob is provided on a side wall of the sole frame, and a front control limit assembly and a rear control limit assembly are arranged in parallel in the sole frame. The front control limit assembly and the rear control limit assembly are respectively hinged to the knob. The front double-wheel support assembly and the rear double-wheel support assembly are arranged in parallel at the bottom of the sole frame. The front control limit assembly drives the front double-wheel support assembly to expand or retract by reciprocating along the length direction of the sole frame, and the rear control limit assembly drives the rear double-wheel support assembly to expand or retract by reciprocating along the length direction of the sole frame. The action change states of the front double-wheel support assembly and the rear double-wheel support assembly are consistent.

Description

Technical Field

[0001] The invention relates to a pair of synchronously deformable shoes capable of avoiding accidental contact, belonging to the technical field of sports goods. Background Art

[0002] At present, most of the deformable roller skates on the market have double wheels, which are different from the functions of existing roller skates. The skating is not flexible and stable enough. In addition, the control structure used in the transformation between ordinary shoes and roller skates is complex and easy to get stuck during the deformation process. If it is not opened completely, the pulleys need to be directly operated by hand, which is clumsy and easy to hurt the hands. There are also a small number of products that combine the use characteristics of ordinary walking shoes and roller skates. Because the relevant coordination control structure is not reasonable when the roller skates are in use, it is difficult to simultaneously expand or retract multiple wheels. At the same time, because the trigger position is mostly at the heel of the shoe, the control structure is complex and the rapid recovery and stability performance during the expansion or retraction process is poor. At the same time, during the roller skating process, when it comes to making related actions with the heel close to the ground, it is easy to accidentally touch the trigger switch, causing the wheels to retract, affecting the performance of the roller skates, and even threatening the user's physical safety, causing roller skating accidents. Summary of the Invention

[0003] In order to solve the problems mentioned in the above background technology, the purpose of the present invention is to provide a synchronously deformable shoe that avoids accidental touch.

[0004] A synchronous deformable shoe for avoiding accidental touch comprises a sole frame, a knob, a front control limit assembly, a rear control limit assembly, a front double-wheel support assembly and a rear double-wheel support assembly. The knob is provided on one side wall of the sole frame, and the front control limit assembly and the rear control limit assembly are arranged in parallel in the sole frame. The front control limit assembly and the rear control limit assembly are respectively hinged to the knob. The front double-wheel support assembly and the rear double-wheel support assembly are arranged in parallel at the bottom of the sole frame. The front control limit assembly drives the front double-wheel support assembly to expand or retract by reciprocating motion along the length direction of the sole frame. The rear control limit assembly drives the rear double-wheel support assembly to expand or retract by reciprocating motion along the length direction of the sole frame. The action change states of the front double-wheel support assembly and the rear double-wheel support assembly are consistent.

[0005] As an optimal solution: a connecting rod is hinged inside the sole frame along its width direction, one end of the knob is the force-applying end, and the other end of the knob passes through the side wall of the sole frame and is connected to the connecting rod.

[0006] As a preferred method solution: The rear control and limit assembly includes an intermediate connecting rod, a U-shaped connecting block, and a first spring. An inner cavity is machined inside the sole frame. The U-shaped connecting block is arranged inside the inner cavity. First arc-shaped long holes communicating with the inner cavity are respectively machined on both sides of the sole frame. A first shaft body penetrates between the two first arc-shaped long holes. One end of the intermediate connecting rod is hinged to the outer wall of the connecting rod, and the other end of the intermediate connecting rod is hinged to the U-shaped connecting block. A first spring is arranged between the U-shaped connecting block and the inner wall of the inner cavity. The rear double-wheel support assembly is connected to the U-shaped connecting block. The U-shaped connecting block makes a reciprocating motion along the length direction of the sole frame under the drive of the intermediate connecting rod. When the U-shaped connecting block is in the first limit position under the drive of the intermediate connecting rod, the U-shaped connecting block divides the first arc-shaped long hole into two first hole positions, and the first shaft body is in any one of the two first hole positions. When the U-shaped connecting block is in the second limit position under the drive of the intermediate connecting rod, the U-shaped connecting block is arranged on one side of the first arc-shaped long hole, and the two first hole positions in the first arc-shaped long hole are in a communicating state.

[0007] As a preferred method solution: The structure of the rear double-wheel support assembly is the same as that of the front double-wheel support assembly. The rear double-wheel support assembly includes a first wheel body, a second wheel body, two external long support plates, two external short support plates, and two internal short support plates. A fifth shaft body penetrates through the middle of the sole frame, and a third shaft body penetrates through the tail of the sole frame. Second arc-shaped holes are respectively machined on both sides of the sole frame. The second arc-shaped holes are arranged on one side of the first arc-shaped long hole close to the tail of the sole frame. A fourth shaft body penetrates through the two second arc-shaped holes. The second arc-shaped holes are divided by the U-shaped connecting block to form two second hole positions for mating with the fourth shaft body. The two external short support plates are respectively arranged on both sides of the sole frame. One end of each external short support plate is hinged to the end of the fourth shaft body, and the other end of each external short support plate is hinged to the first shaft body. The fifth shaft body is arranged on one side of the first arc-shaped long hole close to the head of the sole frame. The two external long support plates are respectively arranged on both sides of the sole frame. The external long support plates and the external short support plates are arranged in one-to-one correspondence. One end of each external long support plate is hinged to the fifth shaft body, and the external long support plate is hinged to the end of the first shaft body close to it. The other ends of the two external long support plates are hinged with the first wheel body; the two internal short support plates are arranged in parallel inside the sole frame. The upper ends of the two internal short support plates are sleeved on the third shaft body, and the fourth shaft body also penetrates through each internal short support plate along its thickness direction. The lower ends of the two internal short support plates are hinged with the second wheel body.

[0008] As a preferred solution: A hinge head is respectively arranged on the outer walls of both sides of the sole frame. A second spring is arranged between the external short support plate in the rear double-wheel support assembly and the hinge head, and a third spring is arranged between the external short support plate in the front double-wheel support assembly and the hinge head.

[0009] As a preferred solution: the sole frame includes a first component side cover, a second component side cover and a top cover, the first component side cover and the second component side cover are vertically arranged in parallel, the first component side cover is processed with a first groove on the side facing the second component side cover, and the second component side cover is processed with a second groove on the side facing the first component side cover, the top cover is horizontally arranged between the first component side cover and the second component side cover, the two sides of the top cover are respectively detachably connected to the first component side cover and the second component side cover, and the inner cavity is enclosed by the first component side cover, the top cover and the second component side cover.

[0010] As a preferred solution: the U-shaped connecting block includes an upper cross bar, a middle vertical bar and a lower cross bar, and the upper cross bar and the lower cross bar are arranged in sequence from top to bottom along the length direction of the sole frame, one end of the upper cross bar is fixedly connected to one end of the lower cross bar through the middle vertical bar, and the second arc-shaped hole is separated by the other end of the lower cross bar to form two second hole positions that cooperate with the fourth axis body, and the upper cross bar is processed with a first protrusion hinged to the middle connecting rod, and the side of the middle vertical bar facing the head of the sole frame is processed with a second protrusion that cooperates with one end of the first spring.

[0011] As a preferred solution: a third protrusion is processed in the inner cavity to match the other end of the first spring.

[0012] As a preferred solution: the bottom of the first groove is processed with a long groove that matches the upper cross bar. The long groove is arranged above the first spring. The length of the upper cross bar is less than the length of the long groove. The upper cross bar is arranged in the long groove, and the upper cross bar makes reciprocating sliding motion along the length direction of the long groove.

[0013] As a preferred solution, the difference between the length of the long slot and the upper cross bar is matched with the aperture of the first arc-shaped long hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention realizes the process of synchronous expansion or contraction of the front double-wheel support assembly and the rear double-wheel support assembly through the mutual cooperation between the sole frame, the knob, the front control limit assembly and the rear control limit assembly. The knob is set on the side of the sole frame to realize the side opening process, avoids interference with roller skating-related skill movements, and completely prevents the occurrence of accidental wheel retraction accidents due to triggering the switch during roller skating.

[0016] In the present invention, the front control and limit assembly is used to control the front dual-wheel support assembly. The front control and limit assembly drives the front dual-wheel support assembly to expand or retract by reciprocating along the length of the sole frame. The rear control and limit assembly controls the rear dual-wheel support assembly. The rear control and limit assembly drives the rear dual-wheel support assembly to expand or retract by reciprocating along the length of the sole frame. The front and rear control and limit assemblies are synchronously controlled by the turning of a knob, thereby ensuring uniform deployment of each wheel and ensuring high consistency after release.

[0017] In the present invention, each component in the front control limit assembly and the rear control limit assembly moves in a predetermined trajectory, avoiding the occurrence of unconstrained free components and ensuring the stability and smoothness of the folding or unfolding action of the present invention.

[0018] The present invention enables a single external screwing force to simultaneously control the front control limit assembly and the rear control limit assembly to perform control operations, thereby making the transmission of the screwing force of the knob more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the top view of the structure of the present invention in the collapsed limit state;

[0021] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0022] Figure 3 This is a schematic top view of the structure of the present invention in a collapsed limit state, with the sole frame removed;

[0023] Figure 4 This is a schematic diagram of the main structure of the present invention in a folded limit state;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention in the ultimate state of folding;

[0025] Figure 6 It is a schematic diagram of the top view of the structure of the present invention in the ultimate expansion state;

[0026] Figure 7 for Figure 6 Schematic diagram of the cross section at the middle BB;

[0027] Figure 8 It is a left-side structural schematic diagram of the present invention in an extended limit state;

[0028] Figure 9Schematic front view of the present invention in the expanded limit state;

[0029] Figure 10 First three-dimensional structure schematic diagram of the present invention in the expanded limit state;

[0030] Figure 11 Second three-dimensional structure schematic diagram of the present invention in the expanded limit state;

[0031] Figure 12 Third three-dimensional structure schematic diagram of the present invention in the expanded limit state, with the top cover removed in the figure;

[0032] Figure 13 is Figure 12 Enlarged structure schematic diagram at position A in;

[0033] Figure 14 Schematic three-dimensional structure diagram of the U-shaped connecting block.

[0034] In the figure, 1 - sole frame; 1-1 - first component side cover; 1-2 - second component side cover; 1-3 - top cover; 2 - knob; 3 - connecting rod; 4 - intermediate connecting rod; 5 - U-shaped connecting block; 5-1 - upper cross bar; 5-2 - middle vertical bar; 5-3 - lower cross bar; 6 - first spring; 7 - inner cavity; 8 - first arc-shaped long hole; 9 - first shaft body; 10 - first wheel body; 11 - second wheel body; 12 - external long support plate; 13 - external short support plate; 14 - internal short support plate; 16 - third shaft body; 17 - second arc-shaped hole; 18 - fourth shaft body; 19 - fifth shaft body; 20 - hinge joint; 21 - second spring; 22 - third spring; 23 - first protrusion; 24 - second protrusion; 25 - third protrusion; 30 - front control limit assembly; 40 - rear control limit assembly; 50 - front double-wheel support assembly; 60 - rear double-wheel support assembly; 70 - limit long strip; 80 - limit short strip. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described below through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0036] Here, it should also be noted that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0037] Detailed implementation manner one: As Figure 1 、 Figure 2、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 As shown, this specific embodiment adopts the following technical solutions, which include a sole frame 1, a knob 2, a front control limit assembly 30, a rear control limit assembly 40, a front double-wheel support assembly 50 and a rear double-wheel support assembly 60. A knob 2 is provided on one side wall of the sole frame 1, and a front control limit assembly 30 and a rear control limit assembly 40 are arranged in parallel in the sole frame 1. The front control limit assembly 30 and the rear control limit assembly 40 are respectively hinged to the knob 2. The front double-wheel support assembly 50 is connected to the rear double-wheel support assembly 60. The support assembly 50 and the rear double-wheel support assembly 60 are arranged side by side at the bottom of the sole frame 1. The front control limit assembly 30 drives the front double-wheel support assembly 50 to expand or retract by making a reciprocating motion along the length direction of the sole frame 1. The rear control limit assembly 40 drives the rear double-wheel support assembly 60 to expand or retract by making a reciprocating motion along the length direction of the sole frame 1. The movement change states of the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are consistent.

[0038] Specific embodiment 2: This embodiment is a further limitation of specific embodiment 1. A connecting rod 3 is hinged inside the sole frame 1 along its width direction. One end of the knob 2 is the force-applying end, and the other end of the knob 2 passes through the side wall of the sole frame 1 and is connected to the connecting rod 3.

[0039] Specific Embodiment 3: This embodiment is a further limitation of Specific Embodiment 1 or 2. The rear control limit assembly 40 includes an intermediate connecting rod 4, a U-shaped connecting block 5, and a first spring 6. An inner cavity 7 is machined inside the sole frame 1. The U-shaped connecting block 5 is arranged inside the inner cavity 7. First arc-shaped long holes 8 communicating with the inner cavity 7 are respectively machined on both sides of the sole frame 1. A first shaft body 9 is passed through between the two first arc-shaped long holes 8. One end of the intermediate connecting rod 4 is铰接 to the outer wall of the connecting rod 3, and the other end of the intermediate connecting rod 4 is铰接 to the U-shaped connecting block 5. A first spring 6 is arranged between the U-shaped connecting block 5 and the inner wall of the inner cavity 7. The rear double-wheel support assembly 60 is connected to the U-shaped connecting block 5. The U-shaped connecting block 5 makes a reciprocating motion along the length direction of the sole frame 1 under the drive of the intermediate connecting rod 4. When the U-shaped connecting block 5 is in the first limit position under the drive of the intermediate connecting rod 4, that is, when the U-shaped connecting block 5 intersects with the first arc-shaped long hole 8, the U-shaped connecting block 5 divides the first arc-shaped long hole 8 into two first hole positions. The first shaft body 9 is in any one of the two first hole positions, and the first shaft body 9 is in a locked state. When the U-shaped connecting block 5 is in the second limit position under the drive of the intermediate connecting rod 4, the U-shaped connecting block 5 is arranged on one side of the first arc-shaped long hole 8, and the two first hole positions in the first arc-shaped long hole 8 are in a communicating state. At this time, the first shaft body 9 can reciprocate along the length direction of the first arc-shaped long hole 8.

[0040] In this embodiment, the number of rear control limit assemblies 40 used is two, and the structures of the rear control limit assemblies 40 are the same. The two rear control limit assemblies 40 are respectively arranged on both sides of the sole frame 1. The installation position of the rear control limit assembly 40 is on the inner side wall of the sole frame 1, near the tail of the sole frame 1.

[0041] Similarly, the number of front control limit assemblies 30 used is two, and the structures of the front control limit assemblies 30 are the same. The two front control limit assemblies 30 are respectively arranged on both sides of the sole frame 1. The installation position of the front control limit assembly 30 is on the inner side wall of the sole frame 1, near the head of the sole frame 1.

[0042] In this embodiment, the structure of the front control limit assembly 30 is the same as that of the rear control limit assembly 40, only the铰接 position of the intermediate connecting rod 4 and the connecting rod 3 is different.

[0043] It should be noted that the word "铰接" in the original text is not a standard Chinese character. It may be a misspelling. The correct Chinese character should be "铰接". I have translated it as "铰接" in the English text for the sake of consistency with the original text. If it is a special term with a specific meaning in the relevant field, you may need to correct it according to the actual situation.In this embodiment, the two first hole positions are the upper first hole position and the lower first hole position, respectively. When the first shaft 9 is in the upper first hole position of the first arc-shaped long hole 8, the present invention is in the folded limit position. When the first shaft 9 is in the lower first hole position of the first arc-shaped long hole 8, the present invention is in the expanded limit position. When the two first hole positions in the first arc-shaped long hole 8 are in a connected state and the first shaft 9 slides from top to bottom along the length of the first arc-shaped long hole 8, the present invention is in a state of transition from the folded state to the expanded state. When the two first hole positions in the first arc-shaped long hole 8 are in a connected state and the first shaft 9 slides from bottom to top along the length of the first arc-shaped long hole 8, the present invention is in a state of transition from the expanded state to the folded state.

[0044] Specific embodiment four: This embodiment is a further limitation of specific embodiment one, two or three. In this embodiment, the structure of the rear double-wheel support assembly 60 is the same as that of the front double-wheel support assembly 50. The rear double-wheel support assembly 60 includes a first wheel body 10, a second wheel body 11, two external long support plates 12, two external short support plates 13 and two internal short support plates 14. A fifth axis 19 is passed through the middle of the sole frame 1, and a third axis 16 is passed through the tail of the sole frame 1. Second arc holes 17 are respectively processed on both sides of the sole frame 1. The second arc hole 17 is arranged on one side of the first arc long hole 8 close to the tail of the sole frame 1. A fourth axis 18 is passed through the two second arc holes 17. The second arc hole 17 is separated by a U-shaped connecting block 5 to form two second hole positions that match the fourth axis 18. The two external short support plates 13 are respectively arranged on both sides of the sole frame 1. Each external short support plate 13 One end of the plate 13 is hinged to the end of the fourth axis 18, and the other end of each external short support plate 13 is hinged to the first axis 9. The fifth axis 19 is arranged on the side of the first arc-shaped long hole 8 close to the head of the sole frame 1. The two external long support plates 12 are respectively arranged on both sides of the sole frame 1, and the external long support plates 12 and the external short support plates 13 are arranged one by one in correspondence. One end of each external long support plate 12 is hinged to the fifth axis 19, and the external long support plate 12 is hinged to the end of the first axis 9 close to it. The other ends of the two external long support plates 12 are hingedly connected to the first wheel body 10; the two built-in short support plates 14 are arranged side by side in the sole frame 1, and the upper ends of the two built-in short support plates 14 are both mounted on the third axis 16. The upper end of each built-in short support plate 14 is also penetrated by the fourth axis 18 along its thickness direction, and the lower ends of the two built-in short support plates 14 are hingedly connected to the second wheel body 11.

[0045] The outer walls of the sole frame 1 on both sides of the shoe sole frame 1 in this embodiment are respectively provided with limiting long strips 70 that cooperate with the inner walls of the external long support plates 12. The inner wall of each external long support plate 12 is in contact with the limiting long strip 70 adjacent to it. The external long support plates 12 on both sides of the sole frame 1 are connected by the fifth axis 19, so that the inner walls of the external long support plates 12 are in contact with the outer walls of the limiting long strips 70, thereby limiting the translational freedom of the external long support plates 12 in the x-axis, ensuring the lateral stability of the external long support plates 12 when they are expanded or retracted, that is, the limiting long strips 70 play a role in limiting the stability of the external long support plates 12 along the width direction of the sole frame 1, ensuring that the lateral shaking amplitude is within a stable range, avoiding excessive lateral shaking amplitude, and supporting and limiting the freedom of the external long support plates 12 in the x-direction, thereby regulating the movement trajectory of the external long support plates 12 when they fall or rise.

[0046] Furthermore, the outer walls of both sides of the sole frame 1 are respectively provided with a limiting short strip 80 that cooperates with the inner wall of the external long support plate 12. The limiting short strip 80 is arranged close to the knob 2, and the limiting long strip 70 is arranged away from the knob 2. The inner wall of each external long support plate 12 is in contact with the limiting short strip 80 close to it. The external long support plates 12 on both sides of the sole frame 1 are connected by the fifth shaft 19, so that the inner walls of the external long support plates 12 are respectively in contact with the outer walls of the limiting long strip 70 and the outer walls of the limiting short strip 80, so that Limiting the translational freedom of the x-axis of the external long support plate 12 ensures the lateral stability of the external long support plate 12 when it is expanded or folded, that is, the limiting long strip 70 and the limiting short strip 80 work together to limit the stability of the external long support plate 12 along the width direction of the sole frame 1, ensuring that the lateral shaking amplitude is within a stable range, avoiding excessive lateral shaking amplitude, and supporting and limiting the freedom of the external long support plate 12 in the x-direction, thereby regulating the movement trajectory of the external long support plate 12 when falling or rising.

[0047] Furthermore, the front double-wheel support assembly 50 is also processed with relevant limiting strips on the sole frame 1, and the arrangement positions are symmetrical with the limiting long strip 70 and the limiting short strip 80, that is, the front double-wheel support assembly 50 is also correspondingly provided with another limiting long strip 70 and another limiting short strip 80 on each side outer wall of the sole frame 1, and the axis of symmetry is the vertical diameter line where the knob 2 is located.

[0048] Furthermore, a boss is processed at the end of the fifth shaft 19, and the outer end face of the boss is on the same vertical plane as the outer walls of the limiting long strip 70 and the limiting short strip 80. The inner wall of the external long support plate 12 is in contact with the outer wall of the limiting long strip 70, the limiting short strip 80 and the outer wall of the boss, respectively, thereby limiting the x-axis translational freedom of the external long support plate 12, ensuring the lateral stability of the external long support plate 12 when it is expanded or retracted. The limiting long strip 70, the limiting short strip 80 and the boss cooperate with each other to limit the external long support plate 12 at multiple locations to achieve the effect of regulating the external long support plate 12 itself as a whole.

[0049] Specific embodiment five: This embodiment is a further limitation of specific embodiments one, two, three or four. A hinge joint 20 is respectively provided on the outer walls on both sides of the sole frame 1, a second spring 21 is provided between the external short support plate 13 in the rear double-wheel support assembly 60 and the hinge joint 20, and a third spring 22 is provided between the external short support plate 13 in the front double-wheel support assembly 50 and the hinge joint 20.

[0050] Specific embodiment six: This embodiment is a further limitation of specific embodiments one, two, three, four or five. The sole frame 1 includes a first component side cover 1-1, a second component side cover 1-2 and a top cover 1-3. The first component side cover 1-1 and the second component side cover 1-2 are vertically arranged in parallel. The first component side cover 1-1 is processed with a first groove on the side facing the second component side cover 1-2, and the second component side cover 1-2 is processed with a second groove on the side facing the first component side cover 1-1. The top cover 1-3 is horizontally arranged between the first component side cover 1-1 and the second component side cover 1-2. The two sides of the top cover 1-3 are detachably connected to the first component side cover 1-1 and the second component side cover 1-2 respectively. The inner cavity 7 is enclosed and formed between the first component side cover 1-1, the top cover 1-3 and the second component side cover 1-2.

[0051] Specific embodiment seven: This embodiment is a further limitation of specific embodiments one, two, three, four, five or six. The U-shaped connecting block 5 includes an upper cross bar 5-1, a middle vertical bar 5-2 and a lower cross bar 5-3. The upper cross bar 5-1 and the lower cross bar 5-3 are arranged in sequence from top to bottom along the length direction of the sole frame 1. One end of the upper cross bar 5-1 is fixedly connected to one end of the lower cross bar 5-3 through the middle vertical bar 5-2. The second arc-shaped hole 17 is separated by the other end of the lower cross bar 5-3 to form two second hole positions that match the fourth axis 18. The upper cross bar 5-1 is processed with a first protrusion 23 hinged to the middle connecting rod 4, and the middle vertical bar 5-2 is processed with a second protrusion 24 that matches one end of the first spring 6 on the side facing the head of the sole frame 1.

[0052] In this embodiment, the upper cross bar 5-1 separates the first arc-shaped long hole 8 into two first hole positions, and the first shaft 9 is located in any one of the two first hole positions. When the upper cross bar 5-1 moves away from the first arc-shaped long hole 8 under the drive of the middle connecting rod 4, until it moves to the second extreme position, at this time, the U-shaped connecting block 5 is arranged on one side of the first arc-shaped long hole 8, and the two first hole positions in the first arc-shaped long hole 8 are in a connected state.

[0053] In this embodiment, the lower cross bar 5-3 separates the second arc-shaped hole 17 through the U-shaped connecting block 5 to form two second hole positions that cooperate with the fourth axis 18. The fourth axis 18 is located in any one of the two second hole positions. When the lower cross bar 5-3 is in the second extreme position driven by the middle connecting rod 4, the U-shaped connecting block 5 is arranged on one side of the first arc-shaped long hole 8, and the two first hole positions in the first arc-shaped long hole 8 are in a connected state.

[0054] In this embodiment, the two second hole positions are the upper second hole position and the lower second hole position, respectively. When the fourth shaft 18 is in the upper second hole position of the second arc-shaped hole 17, the present invention is in the folded limit position. When the fourth shaft 18 is in the lower second hole position of the second arc-shaped slot 17, the present invention is in the extended limit position. When the two second hole positions in the second arc-shaped slot 17 are connected and the fourth shaft 18 slides from top to bottom along the length of the second arc-shaped slot 17, the present invention is in a transition from the folded state to the extended state. When the two second hole positions in the second arc-shaped slot 17 are connected and the fourth shaft 18 slides from bottom to top along the length of the second arc-shaped slot 17, the present invention is in a transition from the extended state to the folded state.

[0055] Specific embodiment eight: This embodiment is a further limitation of specific embodiments one, two, three, four, five, six or seven. A third protrusion 25 is formed in the inner cavity 7 to match the other end of the first spring 6. The end of the first spring 6 is sleeved on the third protrusion 25.

[0056] Specific embodiment nine: This embodiment is a further limitation of specific embodiments one, two, three, four, five, six, seven or eight. The bottom of the first groove is processed with a long groove that matches the upper cross bar 5-1. The long groove is arranged above the first spring 6. The length of the upper cross bar 5-1 is less than the length of the long groove. The upper cross bar 5-1 is arranged in the long groove, and the upper cross bar 5-1 makes reciprocating sliding motion along the length direction of the long groove.

[0057] Specific embodiment ten: This embodiment is a further limitation of specific embodiments one, two, three, four, five, six, seven, eight or nine, and the difference in length between the long slot and the upper cross bar 5 - 1 is matched with the aperture of the first arc-shaped long hole 8 .

[0058] The present invention can ensure that the four wheels rotate clockwise or counterclockwise around a fixed point in groups of two, and the displacement in the z-axis direction, that is, the width direction of the sole frame 1, is equal, thereby ensuring the high consistency of the four wheels in the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 after release, making the folding or unfolding action smoother.

[0059] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the present invention is in the folded limit position. When the present invention is in the folded limit position, it indicates that the front control limit assembly 30 and the rear control limit assembly 40 are both in the folded limit position, the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are both in the folded limit position, the first axis 9 in the rear control limit assembly 40 is at the top end of the first arc-shaped long hole 8, the fourth axis 18 is at the top end of the second arc-shaped long hole 17, one of the first axis 9 in the front control limit assembly 30 is at the top end of its corresponding first arc-shaped long hole 8, and one of the fourth axis 18 in the front control limit assembly 30 is at the top end of its corresponding second arc-shaped long hole 17. At this time, the four wheels of the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are both in the sole frame 1 along the length direction of the sole frame 1.

[0060] like Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the present invention is in the expansion limit position. When the present invention is in the expansion limit position, it indicates that the front control limit assembly 30 and the rear control limit assembly 40 are both in the expansion limit position, the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are both in the expansion limit position, the first shaft body 9 in the rear control limit assembly 40 is at the bottom end of the first arc-shaped long hole 8, and the fourth shaft body 18 is at the top end of the second arc-shaped long hole 17, one of the first shaft bodies 9 in the front control limit assembly 30 is at the bottom end of its corresponding first arc-shaped long hole 8, and one of the fourth shaft bodies 18 in the front control limit assembly 30 is at the top end of another second arc-shaped long hole 17. At this time, the four wheel bodies of the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are in the expansion limit state.

[0061] Working process:

[0062] The change process from the folded extreme position to the unfolded extreme position of the present invention is the process of converting the ordinary shoe into a roller skate, specifically:

[0063] When the present invention is in the retracted limit position, the front control limit assembly 30 and the rear control limit assembly 40 are both in the retracted limit position, the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are both in the retracted limit position. In the rear control limit assembly 40, the first shaft body 9 is at the top end of the first arc-shaped long hole 8, and the fourth shaft body 18 is at the top end of the second arc-shaped long hole 17. In the front control limit assembly 30, one first shaft body 9 is at the top end of its corresponding first arc-shaped long hole 8, and one fourth shaft body 18 in the front control limit assembly 30 is at the top end of its corresponding second arc-shaped long hole 17. At this time, the four wheels of the front double-wheel support assembly 50 and the rear double-wheel support assembly 60 are all within the sole frame 1 along the length direction of the sole frame 1;

[0064] Rotate the knob 2 counterclockwise and keep the rotated knob 2 in the twisted position. The rotation of the knob 2 drives the connecting rod 3 to rotate synchronously. The rotation of the connecting rod 3 drives the intermediate connecting rod 4 to move towards the head of the sole frame 1. The movement of the intermediate connecting rod 4 drives the U-shaped connecting block 5 to move towards the head of the sole frame 1, so that the U-shaped connecting block 5 moves away from the first arc-shaped long hole 8. The first spring 6 is in a compressed state. When the U-shaped connecting block 5 moves to the limit position away from the first arc-shaped long hole 8, the two first hole positions of the first arc-shaped long hole 8 are connected. The first shaft body 9 moves from the top end of the first arc-shaped long hole 8 to the bottom end due to the self-weight of the rear double-wheel support assembly 60, thereby driving the external long support plate 12 and the external short support plate 13 to rotate towards the ground, releasing the first wheel body 10. At the same time, because the U-shaped connecting block 5 moves away from the second arc-shaped long hole 17, the fourth shaft body 18 in the second arc-shaped long hole 17 is disengaged from the limit of the U-shaped connecting block 5. The fourth shaft body 18 moves from the top end of the second arc-shaped long hole 17 to the bottom end due to the self-weight of the rear double-wheel support assembly 60, thereby driving the internal short support plate 14 to rotate towards the ground, releasing the second wheel body 11; Release the knob 2. The U-shaped connecting block 5 moves towards the first arc-shaped long hole 8 and the second arc-shaped long hole 17 due to the rebound of the first spring 6 until the upper cross bar 5-1 abuts above the first shaft body 9 to play a limiting and locking role, and at the same time, the lower cross bar 5-3 abuts above the fourth shaft body 18 to play a limiting and locking role, that is, the conversion process from the retracted limit position to the extended limit position is completed.

[0065] During the above process, due to the clockwise rotation of the knob 2, the knob 2 also drives the front control limit assembly 30 to convert the front double-wheel support assembly 50 from the retracted state to the extended state. The specific process is as follows:

[0066] When the knob 2 rotates, it drives the synchronous rotation of another connecting rod 3 in the front control limit assembly 30. The rotation of the other connecting rod 3 drives the movement of another intermediate connecting rod 4 towards the tail of the sole holder 1. The movement of the intermediate connecting rod 4 drives the corresponding C-shaped connecting block 5 towards the tail of the sole holder 1, so that the C-shaped connecting block 5 moves away from its corresponding first arc-shaped long hole 8, and thus the other first spring 6 is in a compressed state. When the C-shaped connecting block 5 moves to the extreme position away from the first arc-shaped long hole 8, the two first hole positions of the first arc-shaped long hole 8 are connected, and the first shaft body 9 in the front control limit assembly 30 moves from the top end of the first arc-shaped long hole 8 to the bottom end due to the self-weight of the front double-wheel support assembly 50, thereby driving the external long support plate 12 and the external short support plate 13 in the front control limit assembly 30 to rotate towards the ground, releasing the first wheel body 10 of the front double-wheel support assembly 50. At the same time, due to the movement of the C-shaped connecting block 5 away from the second arc-shaped long hole 17, the fourth shaft body 18 in the second arc-shaped long hole 17 is disengaged from the limit of the C-shaped connecting block 5, and the fourth shaft body 18 moves from the top end of the second arc-shaped long hole 17 to the bottom end due to the self-weight of the rear double-wheel support assembly 60, thereby driving the internal short support plate 14 to rotate towards the ground, releasing the second wheel body 11 in the front double-wheel support assembly 50.

[0067] Thus, the process of simultaneously releasing and unfolding the first wheel body 10 and the second wheel body 11 in the front double-wheel support assembly 50 and the two wheel bodies in the rear double-wheel support assembly 60 is realized.

[0068] The change process of the present invention from the unfolding limit position to the folding limit position, that is, the process of converting the roller skates of the present invention into ordinary shoes, is the reverse operation of the above process.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronously deformable shoe that avoids accidental contact, characterized by: It includes a sole frame (1), a knob (2), a front control and limit assembly (30), a rear control and limit assembly (40), a front double-wheel support assembly (50) and a rear double-wheel support assembly (60). A knob (2) is provided on one side wall of the sole frame (1). The front control and limit assembly (30) and the rear control and limit assembly (40) are arranged in parallel inside the sole frame (1). The front control and limit assembly (30) and the rear control and limit assembly (40) are respectively hinged to the knob (2). The front double-wheel support assembly (50) and the rear double-wheel support assembly (60) are arranged in parallel at the bottom of the sole frame (1). The front control and limit assembly (30) drives the front double-wheel support assembly (50) to perform an unfolding or folding action through a reciprocating movement along the length direction of the sole frame (1). The rear control and limit assembly (40) drives the rear double-wheel support assembly (60) to perform an unfolding or folding action through a reciprocating movement along the length direction of the sole frame (1). The action change states of the front double-wheel support assembly (50) and the rear double-wheel support assembly (60) are the same; The rear control and limit assembly (40) includes an intermediate connecting rod (4), a C-shaped connecting block (5) and a first spring (6). An inner cavity (7) is machined inside the sole frame (1). The C-shaped connecting block (5) is arranged inside the inner cavity (7). First arc-shaped long holes (8) communicating with the inner cavity (7) are respectively machined on both sides of the sole frame (1). A first shaft body (9) is arranged between the two first arc-shaped long holes (8). One end of the intermediate connecting rod (4) is hinged to the outer wall of the connecting rod (3), and the other end of the intermediate connecting rod (4) is hinged to the C-shaped connecting block (5). A first spring (6) is arranged between the C-shaped connecting block (5) and the inner wall of the inner cavity (7). The rear double-wheel support assembly (60) is connected to the C-shaped connecting block (5). The C-shaped connecting block (5) makes a reciprocating movement along the length direction of the sole frame (1) under the drive of the intermediate connecting rod (4). When the C-shaped connecting block (5) is in the first limit position under the drive of the intermediate connecting rod (4), the C-shaped connecting block (5) divides the first arc-shaped long hole (8) into two first hole positions, and the first shaft body (9) is in any one of the two first hole positions. When the C-shaped connecting block (5) is in the second limit position under the drive of the intermediate connecting rod (4), the C-shaped connecting block (5) is arranged on one side of the first arc-shaped long hole (8), and the two first hole positions in the first arc-shaped long hole (8) are in a communicating state; A hinge joint (20) is respectively provided on the outer walls on both sides of the sole frame (1). A second spring (21) is arranged between the external short support plate (13) in the rear double-wheel support assembly (60) and the hinge joint (20). A third spring (22) is arranged between the external short support plate (13) in the front double-wheel support assembly (50) and the hinge joint (20); A limiting long strip (70) and a limiting short strip (80) are correspondingly arranged on the outer wall on each side of the sole frame (1) for the front double-wheel support assembly (50).

2. The synchronously deformable shoe for avoiding accidental contact according to claim 1, characterized in that: A connecting rod (3) is hinged along the width direction inside the sole frame (1). One end of the knob (2) is a force - applying end, and the other end of the knob (2) passes through the side wall of the sole frame (1) and is connected to the connecting rod (3).

3. The synchronously deformable shoe for avoiding accidental contact according to claim 1, characterized in that: The structure of the rear double - wheel support assembly (60) is the same as that of the front double - wheel support assembly (50). The rear double - wheel support assembly (60) includes a first wheel body (10), a second wheel body (11), two external long support plates (12), two external short support plates (13) and two internal short support plates (14). A fifth shaft body (19) is penetrated through the middle of the sole frame (1), and a third shaft body (16) is penetrated through the tail of the sole frame (1). Second arc - shaped holes (17) are respectively machined on both sides of the sole frame (1). The second arc - shaped holes (17) are arranged on one side of the first arc - shaped long hole (8) close to the tail of the sole frame (1). A fourth shaft body (18) is penetrated through the two second arc - shaped holes (17). The second arc - shaped holes (17) are separated by a U - shaped connecting block (5) to form two second holes for fitting with the fourth shaft body (18). The two external short support plates (13) are respectively arranged on both sides of the sole frame (1). One end of each external short support plate (13) is hinged to the end of the fourth shaft body (18), and the other end of each external short support plate (13) is hinged to the first shaft body (9). The fifth shaft body (19) is arranged on one side of the first arc - shaped long hole (8) close to the head of the sole frame (1). The two external long support plates (12) are respectively arranged on both sides of the sole frame (1). The external long support plates (12) and the external short support plates (13) are arranged in one - to - one correspondence. One end of each external long support plate (12) is hinged to the fifth shaft body (19), and the external long support plate (12) is hinged to the end of the first shaft body (9) close to it. A first wheel body (10) is hinged between the other ends of the two external long support plates (12). The two internal short support plates (14) are arranged in parallel inside the sole frame (1). The upper ends of the two internal short support plates (14) are both sleeved on the third shaft body (16). The fourth shaft body (18) is also penetrated through each internal short support plate (14) along its thickness direction. A second wheel body (11) is hinged between the lower ends of the two internal short support plates (14).

4. The synchronously deformable shoe for avoiding accidental contact according to claim 1 or 3, characterized in that: The sole frame (1) includes a first component side cover (1 - 1), a second component side cover (1 - 2) and a top cover (1 - 3). The first component side cover (1 - 1) and the second component side cover (1 - 2) are arranged vertically in parallel. A first groove is machined on the side of the first component side cover (1 - 1) facing the second component side cover (1 - 2). A second groove is machined on the side of the second component side cover (1 - 2) facing the first component side cover (1 - 1). The top cover (1 - 3) is horizontally arranged between the first component side cover (1 - 1) and the second component side cover (1 - 2). Both sides of the top cover (1 - 3) are detachably connected to the first component side cover (1 - 1) and the second component side cover (1 - 2) respectively. The inner cavity (7) is formed by enclosing the first component side cover (1 - 1), the top cover (1 - 3) and the second component side cover (1 - 2).

5. The synchronously deformable shoe for avoiding accidental contact according to claim 4, characterized in that: The U-shaped connecting block (5) comprises an upper crossbar (5-1), a middle vertical bar (5-2) and a lower crossbar (5-3), wherein the upper crossbar (5-1) and the lower crossbar (5-3) are sequentially arranged from top to bottom along the length direction of the sole frame (1), one end of the upper crossbar (5-1) is fixedly connected to one end of the lower crossbar (5-3) through the middle vertical bar (5-2), the second arc-shaped hole (17) is separated by the other end of the lower crossbar (5-3) to form two second hole positions matching the fourth axis (18), the upper crossbar (5-1) is processed with a first protrusion (23) hinged to the middle connecting rod (4), and the middle vertical bar (5-2) is processed with a second protrusion (24) matching one end of the first spring (6) on a side facing the head of the sole frame (1).

6. The synchronously deformable shoe for avoiding accidental contact according to claim 5, characterized in that: A third protrusion (25) is machined in the inner cavity (7) and matches the other end of the first spring (6).

7. The synchronously deformable shoe for avoiding accidental contact according to claim 5, characterized in that: A long groove matching the upper cross bar (5-1) is machined on the bottom of the first groove. The long groove is arranged above the first spring (6). The length of the upper cross bar (5-1) is smaller than the length of the long groove. The upper cross bar (5-1) is arranged in the long groove. The upper cross bar (5-1) performs reciprocating sliding motion along the length direction of the long groove.

8. The synchronously deformable shoe for avoiding accidental contact according to claim 7, characterized in that: The difference between the length of the long slot and the upper crossbar (5-1) is matched with the aperture of the first arc-shaped long hole (8).

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