Shank achilles tendon drafting device

Abstract

The utility model discloses a calf achilles tendon stretching device which comprises a bottom plate and a pedal, and the first end of the pedal is connected with the bottom plate in a three-dimensional rotating mode. The calf achilles tendon drafting device further comprises a first telescopic assembly, the first end of the first telescopic assembly is connected with the bottom plate in a two-dimensional rotating mode, and the second end of the first telescopic assembly is connected with the second end of the pedal in a three-dimensional rotating mode. The first end of the first telescopic assembly is connected with the bottom plate in a three-dimensional rotating mode, and the second end of the first telescopic assembly is connected with the second end of the pedal in a three-dimensional rotating mode. The telescopic assembly can stretch out and draw back to adjust the length so as to adjust the posture of the pedal, so that the posture of the feet of a person is changed, and the effect of correcting the feet is achieved. The telescopic range of the telescopic assembly is large, the posture adjusting range of the pedal is large, and therefore the application range of the calf achilles tendon stretching device is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to foot department correction technical field especially relates to a calf achilles tendon stretching device. BACKGROUND

[0002] Some sick personnel's foot department can appear foot turning in or foot turning out, in the prior art, the patent document with the publication number CN220757524U adjusts the angle of the pedal to adapt to the different application scene of achilles tendon stretching. But the height adjustment range of the height adjusting assembly of the foot achilles tendon stretching corrector is limited, and the application scope needs to be further widened.

[0003] Therefore, the prior art remains to be improved and developed. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems in the prior art, provides a calf achilles tendon stretching device, and aims to solve the problem of limited height adjustment range of the height adjusting assembly of the foot achilles tendon stretching corrector in the prior art, and further widen the application scope.

[0005] The technical scheme adopted by the utility model to solve the technical problems is as follows:

[0006] A calf achilles tendon stretching device, comprising: a bottom plate and a pedal, the first end of the pedal is connected with the bottom plate by three-dimensional rotation, wherein the calf achilles tendon stretching device further comprises:

[0007] A first telescopic assembly, the first end of the first telescopic assembly is connected with the bottom plate by two-dimensional rotation, and the second end of the first telescopic assembly is connected with the second end of the pedal by three-dimensional rotation;

[0008] A second telescopic assembly, the first end of the first telescopic assembly is connected with the bottom plate by three-dimensional rotation, and the second end of the first telescopic assembly is connected with the second end of the pedal by three-dimensional rotation.

[0009] The calf achilles tendon stretching device, wherein the first telescopic assembly and the second telescopic assembly both comprise:

[0010] A sleeve;

[0011] A first rod, the first end of the first rod is connected with the sleeve by screw thread;

[0012] A second rod, the first end of the second rod is connected with the sleeve by rotation or screw thread;

[0013] Wherein, the second end of the first rod is connected with the pedal;

[0014] The second end of the second rod is connected with the bottom plate.

[0015] The calf Achilles tendon stretcher, wherein the second end of the first rod in the first telescopic assembly, the second end of the first rod in the second telescopic assembly, and the second end of the second rod in the second telescopic assembly are connected with first rotary connectors; the rotation direction of the first rotary connectors includes a first direction and a second direction; wherein the first direction is perpendicular to the surface on which the pedal is located and the surface on which the rotation direction of the sleeve is located, and the second direction is perpendicular to the surface on which the first direction is located and the surface on which the rotation direction of the sleeve is located.

[0016] The calf Achilles tendon stretcher, wherein the first rotary connector includes:

[0017] a first ring structure and a second ring structure;

[0018] a rotation shaft, two ends of which are connected with the first ring structure and the second ring structure, respectively;

[0019] a first shaft part, which is arranged on the rotation shaft.

[0020] The calf Achilles tendon stretcher, wherein the second end of the second rod in the first telescopic assembly is connected with a second rotary connector; the rotation direction of the second rotary connector includes a first direction perpendicular to the pedal; wherein the first direction is perpendicular to the surface on which the pedal is located and the surface on which the rotation direction of the sleeve is located.

[0021] The calf Achilles tendon stretcher, wherein the second rotary connector includes:

[0022] a third ring structure and a fourth ring structure, which are arranged on the bottom plate;

[0023] a second shaft part, two ends of which are arranged on the third ring structure and the fourth ring structure, respectively;

[0024] wherein the second shaft part is connected with the second end of the second rod in the first telescopic assembly.

[0025] The calf Achilles tendon stretcher, wherein when the first end of the second rod is threadedly connected with the sleeve, the thread direction of the first end of the first rod is opposite to the thread direction of the first end of the second rod.

[0026] The calf Achilles tendon stretcher, wherein the cross section of the sleeve is polygonal.

[0027] The calf Achilles tendon stretcher, wherein the bottom of the pedal is connected with a universal ball connector, and the universal ball connector includes:

[0028] a seat body, which is arranged on the bottom plate, and the top of the seat body forms a placing groove;

[0029] A ball is located in the placement groove and connected to the pedal;

[0030] The kit is threadedly connected to the side surface of the seat body.

[0031] The calf Achilles tendon stretcher, wherein there are two pedals, each pedal being connected to the first telescopic assembly and the second telescopic assembly;

[0032] The pedal is provided with a blocking member;

[0033] An armrest is provided on the bottom plate. The armrest is located at a corresponding position of the second end of the pedal, and the armrest is a telescopic armrest.

[0034] Beneficial Effects: The telescopic assembly can be extended and retracted to adjust the length of the pedal, thereby adjusting the posture of the user's foot and achieving a corrective effect on the foot. Furthermore, the larger the telescopic assembly's extension range, the wider the pedal's posture adjustment range, thereby increasing the applicability of the calf Achilles tendon stretcher. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the calf Achilles tendon stretcher in an embodiment of the present utility model.

[0036] Figure 2 It is a top view of the calf Achilles tendon stretcher in an embodiment of the present invention.

[0037] Figure 3 This is a first cross-sectional view of the calf Achilles tendon stretcher in an embodiment of the present invention.

[0038] Figure 4 This is a second cross-sectional view of the calf Achilles tendon stretcher in an embodiment of the present invention.

[0039] Figure 5 It is a structural schematic diagram of the first rotating connector and the first rod in an embodiment of the present utility model.

[0040] Figure 6 It is a structural diagram of the first rotating connector in an embodiment of the present utility model.

[0041] Figure 7 It is a structural schematic diagram of the second rotating connector and the second rod in an embodiment of the present utility model.

[0042] Figure 8 It is a structural diagram of the second rotating connecting member in an embodiment of the present utility model.

[0043] Description of reference numerals:

[0044] 10, bottom plate; 20, pedal; 31, first telescopic assembly; 32, second telescopic assembly; 3a, sleeve; 3b, first rod; 3c, second rod; 40, first rotary connecting piece; 41, first ring structure; 42, second ring structure; 43, rotating shaft; 44, first shaft part; 50, second rotary connecting piece; 51, third ring structure; 52, fourth ring structure; 53, second shaft part; 60, universal ball connecting piece; 61, seat body; 62, ball; 63, sleeve; 70, blocking piece; 80, handrail. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions and advantages of the present application clearer and more explicit, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0046] Please also refer to Figures 1-8 The present application provides some preferred embodiments of a calf Achilles tendon stretcher.

[0047] As Figure 1 and Figure 2 shown, the calf Achilles tendon stretcher comprises:

[0048] a bottom plate 10;

[0049] a pedal 20, a first end of the pedal 20 is connected with the bottom plate 10 by three-dimensional rotary connection;

[0050] a first telescopic assembly 31, a first end of the first telescopic assembly 31 is connected with the bottom plate 10 by two-dimensional rotary connection, and a second end of the first telescopic assembly 31 is connected with a second end of the pedal 20 by three-dimensional rotary connection;

[0051] a second telescopic assembly 32, a first end of the first telescopic assembly 31 is connected with the bottom plate 10 by three-dimensional rotary connection, and a second end of the first telescopic assembly 31 is connected with a second end of the pedal 20 by three-dimensional rotary connection.

[0052] Specifically, the pedal 20 is used for standing the feet of a person, and the bottom plate 10 is used for supporting the telescopic assemblies, the pedal 20 and the person standing on the pedal 20. The telescopic assemblies can be adjusted in length to adjust the posture of the pedal 20, so as to change the posture of the feet of the person, thereby achieving the effect of foot correction. Moreover, the telescopic assemblies have a large telescopic range, and the posture of the pedal 20 can be adjusted in a larger range, thereby improving the application range of the calf Achilles tendon stretcher.

[0053] The telescopic assembly is divided into a first telescopic assembly 31 and a second telescopic assembly 32. The difference between the first and second telescopic assemblies 31, 32 lies in their different rotational connections to the base plate 10. The first telescopic assembly 31 utilizes a two-dimensional rotational connection to the base plate 10, while the second telescopic assembly 32 utilizes a three-dimensional rotational connection. Two-dimensional rotation refers to rotation within a two-dimensional plane, while three-dimensional rotation refers to rotation in three-dimensional space. The three-dimensional rotational connection between the second telescopic assembly 32 and the base plate 10 allows the pedal 20 to adjust its posture over a wide range. The two-dimensional rotational connection between the first telescopic assembly 31 and the base plate 10 prevents the pedal 20 from being too flexible and shaking during posture adjustment.

[0054] The first telescopic assembly 31, the second telescopic assembly 32, and the base plate 10 are all connected to the pedal 20 using a three-dimensional rotational connection. The pedal 20 can rotate in three dimensions to accommodate various application scenarios, such as correcting clubfoot or valgus foot. When adjusting the posture of the pedal 20, there are five active points: the three-dimensional rotation point between the base plate 10 and the pedal 20, the two-dimensional rotation point between the first telescopic assembly 31 and the base plate 10, the three-dimensional rotation point between the first telescopic assembly 31 and the pedal 20, the three-dimensional rotation point between the second telescopic assembly 32 and the base plate 10, and the three-dimensional rotation point between the second telescopic assembly 32 and the pedal 20. If all five active points were three-dimensional, the pedal 20 could shift in either direction, leaving a limited range of motion. This could cause a person standing on the pedal 20 to wobble. If three of the five active points were three-dimensional and two were two-dimensional, the pedal 20's adjustment options would be limited, making it unsuitable for various application scenarios, such as correcting clubfoot or valgus foot. Among the five movable points of the present application, four are three-dimensional rotating points and one is two-dimensional rotating point, which can improve the scope of application and avoid shaking.

[0055] With the base plate 10 as the horizontal plane, the vertical sides of the base plate 10 are the second end of the pedal 20 as the front and the first end of the pedal 20 as the rear. The horizontal sides of the pedal 20 are the left and right sides. When adjusting the posture of the pedal 20, the pedal 20 can be rotated upward, downward, or to face left or right.

[0056] The telescopic assembly can adopt various types of telescopic assemblies, for example, a sleeve telescopic assembly, a corrugated telescopic assembly, and another example, a hydraulic telescopic assembly.

[0057] In a preferred embodiment of the present invention, please refer to Figure 2 and Figure 4 , the first telescopic assembly 31 and the second telescopic assembly 32 both include:

[0058] sleeve 3a;

[0059] a first rod 3b, a first end of the first rod 3b is threadedly connected with the sleeve 3a;

[0060] a second rod 3c, a first end of the second rod 3c is rotationally or threadedly connected with the sleeve 3a;

[0061] wherein a second end of the first rod 3b is connected with the pedal 20, and a second end of the second rod 3c is connected with the bottom plate 10.

[0062] Specifically, the sleeve 3a has a through hole, the first end of the first rod 3b and the first end of the second rod 3c are located in the through hole, the first end of the first rod 3b is threadedly connected with the sleeve 3a, when the sleeve 3a is rotated, the relative position between the first rod 3b and the sleeve 3a changes, so as to realize the telescopic function. The first end of the second rod 3c is rotationally connected with the sleeve 3a, and when the sleeve 3a is rotated, the relative position between the second rod 3c and the sleeve 3a does not change, and the telescopic function is not performed. The first end of the second rod 3c is threadedly connected with the sleeve 3a, and when the sleeve 3a is rotated, the relative position between the second rod 3c and the sleeve 3a changes, so as to realize the telescopic function. When the first end of the first rod 3b and the first end of the second rod 3c are threadedly connected with the sleeve 3a, it is beneficial to realize the telescopic function quickly.

[0063] The first end of the first rod 3b is connected to the bottom of the pedal 20 away from the first end of the pedal 20, for example, connected to the second end of the pedal 20, connected to the middle of the pedal 20, or connected to the position between the middle and the second end of the pedal 20. The first telescopic assembly 31 and the second telescopic assembly 32 are respectively located on the left side and the right side of the pedal 20. The three movable points on the pedal 20 form a triangle, for example, an isosceles triangle. The first telescopic assembly 31 and the second telescopic assembly 32 can be parallel to each other or form an angle.

[0064] In a preferred embodiment of the present application, please refer to Figure 2 and Figure 4 The second end of the first rod 3b in the first telescopic assembly 31, the second end of the first rod 3b in the second telescopic assembly 32, and the second end of the second rod 3c in the second telescopic assembly 32 are all connected with a first rotary connecting piece 40; the rotation direction of the first rotary connecting piece 40 includes: a first direction and a second direction; wherein the first direction is perpendicular to the surface on which the pedal 20 is located and the surface on which the rotation direction of the sleeve 3a is located, and the second direction is perpendicular to the surface on which the first direction is located and the surface on which the rotation direction of the sleeve 3a is located.

[0065] Specifically, the three-dimensional rotary connection is realized by the first rotary connecting piece 40. The second end of the first rod 3b in the first telescopic assembly 31 is provided with the first rotary connecting piece 40, thereby realizing the three-dimensional rotary connection between the first telescopic assembly 31 and the bottom plate 10. The second end of the first rod 3b in the second telescopic assembly 32 is provided with the first rotary connecting piece 40, thereby realizing the three-dimensional rotary connection between the second telescopic assembly 32 and the pedal 20. The second end of the second rod 3c in the second telescopic assembly 32 is provided with the first rotary connecting piece 40, thereby realizing the three-dimensional rotary connection between the second telescopic assembly 32 and the bottom plate 10.

[0066] The rotation direction of the first rotary connecting piece 40 has a first direction and a second direction, thereby realizing the rotation of the two structures connected by the first rotary connecting piece 40 in the first direction and the second direction. The first direction refers to the direction of rotation in the plane perpendicular to the plane of the pedal 20, and the second direction refers to the direction of rotation to the left or to the right. The first direction is perpendicular to the plane of the pedal 20, and the first direction is also perpendicular to the plane of the rotation direction of the sleeve 3a. The plane of the first direction and the plane of the second direction are perpendicular to each other, and the second direction is also perpendicular to the plane of the rotation direction of the sleeve 3a. Therefore, the first direction, the second direction, and the rotation direction of the sleeve 3a are perpendicular to each other.

[0067] In a preferred embodiment of the present application, please refer to Figure 4 , Figure 5 and Figure 6 , the first rotary connecting piece 40 comprises:

[0068] a first ring structure 41 and a second ring structure 42;

[0069] a rotating shaft 43, the two ends of which are connected with the first ring structure 41 and the second ring structure 42 respectively;

[0070] a first shaft part 44, which is arranged on the rotating shaft 43.

[0071] Specifically, the first ring structure 41 and the second ring structure 42 are arranged on the pedal 20, or the first ring structure 41 and the second ring structure 42 are arranged on the bottom plate 10. In the first rotary connecting piece 40 connected by the first rod 3b of the first telescopic assembly 31 or the first rod 3b of the second telescopic assembly 32, the first ring structure 41 and the second ring structure 42 are arranged on the pedal 20. The rotating shaft 43 is rotationally connected with the first ring structure 41 and the second ring structure 42. The rotation direction of the rotating shaft 43 is the first direction. The first shaft part 44 is connected with the rotating shaft 43 and the first rod 3b respectively, and realizes the rotary connection between the rotating shaft 43 and the first rod 3b. The rotation direction of the first rod 3b relative to the rotating shaft 43 is the second direction. The rotating shaft 43 and the first shaft part 44 can be rotationally connected or fixedly connected, and the first shaft part 44 can be rotationally connected or fixedly connected with the first rod 3b, but the first shaft part 44 cannot be fixedly connected with the rotating shaft 43 and the first rod 3b at the same time.

[0072] In the first rotating connector 40 connected to the second rod 3c of the second telescopic assembly 32, a first ring structure 41 and a second ring structure 42 are arranged on the base plate 10. The rotating shaft 43 is rotatably connected to the first ring structure 41 and the second ring structure 42. The rotation direction of the rotating shaft 43 is a first direction. The first shaft portion 44 is respectively connected to the rotating shaft 43 and the second rod 3c, and realizes the rotation connection between the rotating shaft 43 and the second rod 3c. The rotation direction of the second rod 3c relative to the rotating shaft 43 is a second direction. The first shaft portion 44 can be rotatably connected or fixedly connected to the rotating shaft 43, and the first shaft portion 44 can be rotatably connected or fixedly connected to the second rod 3c, but the first shaft portion 44 is not fixedly connected to the rotating shaft 43 and the second rod 3c at the same time.

[0073] In a preferred embodiment of the present invention, please refer to Figures 4-6 The second end of the second rod 3c in the first telescopic assembly 31 is connected to a second rotating connector 50; the rotation direction of the second rotating connector 50 includes: a first direction perpendicular to the pedal 20; wherein the first direction is perpendicular to the surface where the pedal 20 is located and the surface where the rotation direction of the sleeve 3a is located.

[0074] Specifically, a two-dimensional rotational connection is achieved through the second rotational connection member 50. The second end of the second rod 3c in the first telescopic assembly 31 is provided with a second rotational connection member 50 to achieve a two-dimensional rotational connection between the first telescopic assembly 31 and the base plate 10.

[0075] The second rotating connector 50 rotates in a first direction, so that the two structures connected by the second rotating connector 50 rotate in the first direction. The first direction is perpendicular to the plane where the pedal 20 is located, and the first direction is also perpendicular to the plane where the sleeve 3a rotates.

[0076] In a preferred embodiment of the present invention, please refer to Figure 4 、 Figure 7 as well as Figure 8 , the second rotating connection member 50 includes:

[0077] The third ring structure 51 and the fourth ring structure 52 are both provided on the bottom plate 10;

[0078] The second shaft portion 53 has two ends respectively disposed on the third ring structure 51 and the fourth ring structure 52;

[0079] The second shaft portion 53 is connected to the second end of the second rod 3 c in the first telescopic assembly 31 .

[0080] Specifically, the third ring structure 51 and the fourth ring structure 52 are arranged on the bottom plate 10. The second shaft part 53 is connected with the third ring structure 51, the fourth ring structure 52 and the second rod 3c of the first telescopic assembly 31 respectively, and rotation of the second rod 3c relative to the third ring structure 51 and the fourth ring structure 52 is realized, and the rotation direction of the second rod 3c relative to the third ring structure 51 and the fourth ring structure 52 is the first direction. The second shaft part 53 and the third ring structure 51 and the fourth ring structure 52 can be rotationally connected or fixedly connected, and the second shaft part 53 and the second rod 3c can be rotationally connected or fixedly connected. When the second shaft part 53 and the third ring structure 51 and the fourth ring structure 52 are fixedly connected, the second shaft part 53 and the second rod 3c are rotationally connected. When the second shaft part 53 and the second rod 3c are fixedly connected, the second shaft part 53 and the third ring structure 51 and the fourth ring structure 52 are rotationally connected.

[0081] In a preferred embodiment of the present application, please refer to Figure 2 and Figure 4 When the first end of the second rod 3c is threadedly connected with the sleeve 3a, the thread direction of the first end of the first rod 3b is opposite to the thread direction of the first end of the second rod 3c.

[0082] Specifically, the first rod 3b and the second rod 3c are both threadedly connected with the sleeve 3a, the thread direction of the first rod 3b is opposite to the thread direction of the second rod 3c, and when the sleeve 3a is rotated, the first rod 3b and the second rod 3c approach or move away from each other, and will not move in the same direction at the same time.

[0083] In a preferred embodiment of the present application, please refer to Figures 2-3 The cross section of the sleeve 3a is polygonal.

[0084] Specifically, the outer side of the sleeve 3a is polygonal, for example, hexagonal, which is convenient for holding and rotating.

[0085] In a preferred embodiment of the present application, please refer to Figures 3-4 The bottom of the pedal 20 is connected with a universal ball connecting piece 60.

[0086] Specifically, the pedal 20 is three-dimensionally rotationally connected with the bottom plate 10 through the universal ball connecting piece 60. Of course, the pedal 20 and the bottom plate 10 can also be three-dimensionally rotationally connected through other connecting pieces.

[0087] In a preferred embodiment of the present application, please refer to Figures 3-4 The universal ball connecting piece 60 comprises:

[0088] A seat body 61 is arranged on the bottom plate 10, and the top of the seat body 61 forms a placing groove;

[0089] A ball 62 is located in the placing groove and connected with the pedal 20.

[0090] A sleeve 63 is threadedly connected with the side of the seat body 61.

[0091] Specifically, the seat body 61 is arranged on the bottom plate 10, the ball 62 is arranged on the pedal 20, and the ball 62 rotates in the placing groove to adapt to the posture of the pedal 20. The sleeve 63 and the seat body 61 limit the rotation of the ball 62.

[0092] In a preferred embodiment of the present application, please refer to Figure 1 The pedal 20 has two, and each pedal 20 is connected with the first telescopic assembly 31 and the second telescopic assembly 32.

[0093] Specifically, the pedal 20 has two, and each pedal 20 is connected with the first telescopic assembly 31 and the second telescopic assembly 32.

[0094] In a preferred embodiment of the present application, please refer to Figures 1-2 The pedal 20 is provided with a blocking piece 70.

[0095] Specifically, in order to prevent the foot from sliding, the blocking piece 70 is arranged on the upper surface of the pedal 20, and the blocking piece 70 can be multiple, located at the rear, left and right respectively.

[0096] In a preferred embodiment of the present application, please refer to Figures 1-2 The bottom plate 10 is provided with a handrail 80.

[0097] Specifically, the handrail 80 can be gripped by the personnel, and the personnel can be prevented from falling when the foot is corrected.

[0098] In a preferred embodiment of the present application, please refer to Figures 1-2 The handrail 80 is located at the corresponding position of the second end of the pedal 20, and the handrail 80 is a telescopic handrail.

[0099] Specifically, the handrail 80 can be a telescopic handrail to adapt to personnel of different heights.

[0100] It should be understood that the application of the present application is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. A calf Achilles tendon stretcher, comprising: A base plate and a pedal, wherein the first end of the pedal is connected to the base plate in a three-dimensional rotation manner; characterized in that the calf Achilles tendon stretcher further comprises: a first telescopic assembly, wherein a first end of the first telescopic assembly is connected to the base plate in a two-dimensional rotational manner, and a second end of the first telescopic assembly is connected to the second end of the pedal in a three-dimensional rotational manner; The second telescopic component, the first end of the first telescopic component is connected to the base plate in a three-dimensional rotation, and the second end of the first telescopic component is connected to the second end of the pedal in a three-dimensional rotation.

2. The calf Achilles tendon stretcher according to claim 1, characterized in that: The first telescopic assembly and the second telescopic assembly both include: sleeve; a first rod, a first end of the first rod being threadedly connected to the sleeve; a second rod, a first end of the second rod being rotatably connected or threadedly connected to the sleeve; Wherein, the second end of the first rod is connected to the pedal; The second end of the second rod is connected to the bottom plate.

3. The calf Achilles tendon stretcher according to claim 2, characterized in that: The second end of the first rod in the first telescopic assembly, the second end of the first rod in the second telescopic assembly, and the second end of the second rod in the second telescopic assembly are all connected to a first rotating connector; the rotation direction of the first rotating connector includes: a first direction and a second direction; wherein the first direction is perpendicular to the surface where the pedal is located and the surface where the rotation direction of the sleeve is located, and the second direction is perpendicular to the surface where the first direction is located and the surface where the rotation direction of the sleeve is located.

4. The calf Achilles tendon stretcher according to claim 3, characterized in that: The first rotating connection member comprises: a first ring structure and a second ring structure; a rotating shaft, with both ends connected to the first ring structure and the second ring structure respectively; The first shaft portion is arranged on the rotating shaft.

5. The calf Achilles tendon stretcher according to claim 2, characterized in that: The second end of the second rod in the first telescopic assembly is connected to a second rotating connector; the rotation direction of the second rotating connector includes: a first direction perpendicular to the pedal; wherein the first direction is perpendicular to the surface where the pedal is located and the surface where the rotation direction of the sleeve is located.

6. The calf Achilles tendon stretcher according to claim 5, characterized in that: The second rotating connection member includes: The third ring structure and the fourth ring structure are both arranged on the bottom plate; a second shaft portion, with two ends respectively disposed on the third ring structure and the fourth ring structure; Wherein, the second shaft portion is connected to the second end of the second rod in the first telescopic assembly.

7. The calf Achilles tendon stretcher according to claim 2, characterized in that: When the first end of the second rod is threadedly connected to the sleeve, the thread direction of the first end of the first rod is opposite to the thread direction of the first end of the second rod.

8. The calf Achilles tendon stretcher according to claim 2, characterized in that: The cross section of the sleeve is polygonal.

9. The calf Achilles tendon stretcher according to any one of claims 1 to 8, characterized in that: The bottom of the pedal is connected to a universal ball joint, and the universal ball joint includes: A seat body is arranged on the bottom plate, and a placement groove is formed on the top of the seat body; A ball is located in the placement groove and connected to the pedal; The kit is threadedly connected to the side surface of the seat body.

10. The calf Achilles tendon stretcher according to any one of claims 1 to 8, characterized in that: There are two pedals, each of which is connected to the first telescopic assembly and the second telescopic assembly; The pedal is provided with a blocking member; An armrest is provided on the bottom plate. The armrest is located at a corresponding position of the second end of the pedal, and the armrest is a telescopic armrest.

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