Multifunctional walking stick

Abstract

The multifunctional walking stick comprises a left supporting unit and a right supporting unit, the left supporting unit comprises a base, an outer sleeve, an inner connecting rod and a handle, the base is connected to the bottom end of the outer sleeve, a lower containing groove is formed in the right side of the base, an upper containing groove is formed in the right side of the outer sleeve, and the upper containing groove and the lower containing groove communicate with each other; the bottom end of the inner connecting rod is rotationally connected into the lower containing groove along the axis in the front-back direction, and the handle is connected to the top end of the outer sleeve. The right supporting unit and the left supporting unit are of a bilateral symmetry structure, the top ends of the two inner connecting rods are rotationally connected with each other along the axis in the front-back direction, and the two outer sleeves are detachably connected; the walking stick can be switched into a single-side supporting structural form or a two-side supporting structural form according to different using requirements or using scenes, so that the requirement of a user for supporting stability is better met, and the using functions of the walking stick are enriched.

Description

Technical Field

[0001] The invention relates to a crutch, in particular to a multifunctional crutch. Background Art

[0002] A crutch is a simple device that assists walking. There are many types of crutch, including walking sticks, elbow sticks, and axillary sticks. When people use a crutch, they usually use one hand to support the ground to provide unilateral support for the human body. However, for users or usage scenarios that require greater support, a crutch that can only provide unilateral support is prone to slipping during use, and the support stability provided is insufficient. Therefore, there is an urgent need for a crutch that can better meet the user's requirements for support stability. Summary of the invention

[0003] The object of the present invention is to provide a multifunctional crutch to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is:

[0005] A multifunctional crutch comprises: a left supporting unit, comprising a base, an outer sleeve, an inner connecting rod and a handle, the base being connected to the bottom end of the outer sleeve, a lower receiving groove being provided on the right side of the base, an upper receiving groove being provided on the right side of the outer sleeve, the upper receiving groove being communicated with the lower receiving groove, the bottom end of the inner connecting rod being rotatably connected in the lower receiving groove along an axis in the front-to-back direction, and the handle being connected to the top end of the outer sleeve; a right supporting unit being a left-right symmetrical structure with the left supporting unit, the top ends of the two inner connecting rods being rotatably connected to each other along an axis in the front-to-back direction, and the two outer sleeves being detachably connected.

[0006] The technical solution has at least the following beneficial effects: when in use, the overall function of a crutch supported on one side and a function of a walker supported on both sides can be switched according to different usage needs. Specifically, when the function of a crutch supported on one side needs to be used, the inner connecting rod in the left supporting unit and the inner connecting rod in the right supporting unit are in a folded state and are respectively located in the upper storage grooves of the two outer sleeves. At this time, the two outer sleeves are connected to each other to form a rod-shaped structure as a whole. When in use, the two bases are used as a supporting point for support; when the function of a walker supported on both sides needs to be used, the outer sleeve of the left supporting unit and the inner connecting rod of the right supporting unit are folded. The outer sleeves of the units are separated from each other, and at this time the two inner connecting rods rotate around the rotation connection points at the top and bottom thereof respectively, so that the two inner connecting rods rotate and unfold. When the two inner connecting rods are fully rotated and unfolded in the horizontal direction, the user can respectively place his hands on the two handles to form support points on the left and right sides of the body through the left and right bases, thereby improving the stability of auxiliary support walking. In this way, the crutch can be switched to a single-sided support structure or a double-sided support structure according to different usage needs or usage scenarios, thereby better meeting the user's requirements for support stability and enriching the use function of the crutch.

[0007] As a further improvement of the above technical solution, a positioning groove is provided in the base at the bottom of the lower storage groove, the positioning groove is connected to the lower storage groove, the bottom of the inner connecting rod is connected to a connecting shaft, the side wall of the lower storage groove is provided with a sliding groove, the sliding groove extends to the positioning groove, the connecting shaft is located in the sliding groove, and the connecting shaft can rotate and slide in the sliding groove. When the whole is switched from the single-sided supporting crutch function to the double-sided supporting walker function, the inner connecting rod rotates in the sliding groove with the connecting shaft as the rotation fulcrum, so that the two inner connecting rods are unfolded in the left and right directions. When the two inner connecting rods are rotated to the horizontal, the inner connecting rod slides along the sliding groove through the connecting shaft, so that the end of the inner connecting rod enters the positioning groove. In this way, the inner connecting rod end and the positioning groove cooperate with each other to realize the rotation limitation of the inner connecting rod, so as to better maintain the relative position state of the inner connecting rod with the base after the rotation and unfolding, and improve the overall structural stability.

[0008] As a further improvement of the above technical solution, the left support unit also includes a front support foot and a rear support foot arranged on the base, the front support foot extends to the left front, and the rear support foot extends to the left rear, and the front end of the front support foot and the rear end of the rear support foot both protrude downward from the base. The front support foot and the rear support foot are connected to the left support unit and the right support unit, so that the front support foot and the rear support foot in the left support unit and the right support unit respectively form an eight-shaped support structure on both sides of the two bases, thereby increasing the grounding range when used as a single-sided support, thereby further improving the stability during auxiliary support.

[0009] As a further improvement of the above technical solution, the positioning groove passes through the base in the front-to-back direction, the rear end of the front supporting foot extends from the front of the positioning groove into the lower receiving groove, and the front end of the rear supporting foot extends from the rear of the positioning groove into the lower receiving groove, the rear end of the front supporting foot and the front end of the rear supporting foot are respectively connected to the bottom of the inner connecting rod through a ball joint, and the bottom end of the inner connecting rod can move into the positioning groove and drive the front supporting foot and the rear supporting foot to rotate to the same straight line. When the left and right support units are in a state of single-sided support, the inner connecting rod drives the front and rear support legs to move into the lower storage grooves. At this time, the front and rear support legs are in an eight-shaped posture on the base. When the left and right support units are in a state of double-sided support, the inner connecting rod rotates to a horizontal state and is inserted into the positioning grooves from the lower storage grooves. At this time, the ball joint between the front and rear support legs can ensure that the inner connecting rod remains connected to the inner connecting rod during rotation, and when the inner connecting rod moves into the positioning groove, the front and rear support legs are guided by the internal structure of the positioning groove, so that the front and rear support legs are rotated to the same straight line. At this time, the front and rear support legs are arranged along the front-to-back direction, which can further increase the range of ground coverage along the front-to-back direction, thereby further improving the stability of the left and right support units during support.

[0010] As a further improvement of the above technical solution, the front and rear parts of the positioning slot are both connected to limiting columns, the front supporting foot is provided with a front slot hole, the rear supporting foot is provided with a rear slot hole, and the two limiting columns are respectively inserted into the front slot hole and the rear slot hole. The two limiting columns are respectively matched with the front slot hole of the front supporting foot and the rear slot hole of the rear supporting foot to limit the front supporting foot and the rear supporting foot during movement, and when the inner connecting rod drives the front supporting foot and the rear supporting foot to enter the positioning slot, the front supporting foot and the rear supporting foot can respectively rotate around the two limiting columns and slide relatively, so that the front supporting foot and the rear supporting foot can be rotated to the same straight line.

[0011] As a further improvement of the above technical solution, a spring plunger is connected to the bottom of the slide slot, and when the inner connecting rod drives the front supporting foot and the rear supporting foot to rotate to the same straight line, the spring plunger abuts against the right side of the connecting shaft. When the inner connecting rod drives the front supporting foot and the rear supporting foot to enter the positioning slot, the connecting shaft at the bottom of the inner connecting rod moves in the slide slot and passes through the spring plunger. At this time, the connecting shaft can elastically squeeze the spring plunger. When the inner connecting rod drives the front supporting foot and the rear supporting foot to rotate to the same straight line, the connecting shaft passes over the spring plunger. At this time, the spring plunger abuts against the right side of the connecting shaft, which can limit the right movement of the connecting shaft, thereby maintaining the position of the connecting shaft in the slide slot, which is conducive to maintaining the stability of the internal structure after the state is switched. When it is necessary to switch the state again, the inner connecting rod is pulled outward from the base with force so that the connecting shaft passes over the spring plunger.

[0012] As a further improvement of the above technical solution, the front end of the front supporting leg and the rear end of the rear supporting leg are both connected with wear-resistant pads. The front supporting leg and the rear supporting leg touch the ground through the wear-resistant pads, and the wear-resistant pads can be used to protect the front end of the front supporting leg and the rear end of the rear supporting leg, reduce wear, and thus increase the overall service life.

[0013] As a further improvement of the above technical solution, a relief groove is provided on one side of the tops of the two inner connecting rods facing each other, and a hinge is connected between the two relief grooves. A relief groove is provided at the rotational connection position of the two inner connecting rods, so as to store the rotational connection structure of the two inner connecting rods, which is beneficial to reducing the space occupied by the two inner connecting rods when folded. In addition, the two inner connecting rods are connected by a hinge to achieve relative rotation, which makes assembly more convenient.

[0014] As a further improvement of the above technical solution, the handle is detachably connected to the outer sleeve. The handle can be disassembled and replaced from the outer sleeve, and the handle can be easily maintained and replaced. Before use, handles of different specifications and sizes can be installed according to the height required by the user, thereby improving the overall versatility and flexibility during use.

[0015] As a further improvement of the above technical solution, the outer side of the handle is covered with an anti-skid pad. When in use, the user can exert force on the handle by contacting the anti-skid pad, and the anti-skid pad can increase the friction with the hand, so that the user is not likely to slip relative to the handle when applying force, thereby improving safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a front view of the present invention when performing unilateral support.

[0018] Figure 2 yes Figure 1 Schematic diagram of the AA cross-section structure.

[0019] Figure 3 It is a front view of the present invention when supporting both sides.

[0020] Figure 4 yes Figure 3 Schematic diagram of the BB cross-section structure.

[0021] In the accompanying drawings: 110-base, 111-positioning groove, 112-slide groove, 113-limiting column, 114-spring plunger, 120-outer sleeve, 130-inner connecting rod, 131-connecting shaft, 140-handle, 150-front supporting foot, 151-front slot hole, 160-rear supporting foot, 161-rear slot hole, 170-ball joint, 200-right supporting unit, 300-hinge. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figure 1 , a multifunctional crutch, comprising a left supporting unit and a right supporting unit 200, wherein the left supporting unit comprises a base 110, an outer sleeve 120, an inner connecting rod 130 and a handle 140, the base 110 is connected to the bottom end of the outer sleeve 120, a lower receiving groove is arranged on the right side of the base 110, an upper receiving groove is arranged on the right side of the outer sleeve 120, the upper receiving groove and the lower receiving groove are communicated with each other, the bottom end of the inner connecting rod 130 is rotatably connected to the lower receiving groove along the axis in the front-back direction, and the handle 140 is connected to the top end of the outer sleeve 120; the right supporting unit 200 and the left supporting unit are bilaterally symmetrical structures. Similarly, the right supporting unit 200 also comprises a base 110, an outer sleeve 120, an inner connecting rod 130 and a handle 140, the base 110 is connected to the bottom end of the outer sleeve 120, the base 11 0 is provided with a lower receiving groove on the left side, and an upper receiving groove is provided on the left side of the outer sleeve 120, the upper receiving groove and the lower receiving groove are communicated with each other, the bottom end of the inner connecting rod 130 is rotatably connected to the lower receiving groove along the axis in the front-to-back direction, and the handle 140 is connected to the top end of the outer sleeve 120; for the left support unit and the right support unit 200, the top ends of the two inner connecting rods 130 are rotatably connected to each other along the axis in the front-to-back direction, and the two outer sleeves 120 are detachably connected, for example, the two outer sleeves 120 can be connected to each other by buckles, or connecting parts such as clamps are arranged on the outside of the two outer sleeves. In order to make the two outer sleeves 120 more tightly connected to each other, the side faces of the two outer sleeves 120 facing each other are planes. When the two outer sleeves 120 are connected to each other, the planes on the two outer sleeves 120 can be tightly against each other.

[0027] As can be seen from the above, when in use, the overall unilaterally supported crutch function and the dual-sided supported walker function can be switched according to different usage needs. Specifically, when the unilaterally supported crutch function is needed, the inner connecting rod 130 in the left supporting unit and the inner connecting rod 130 in the right supporting unit 200 are in a folded state, and are respectively located in the upper storage grooves of the two outer sleeves 120. At this time, the two outer sleeves 120 are connected to each other, and the whole is a rod-shaped structure. When in use, it relies on the two bases 110 as a supporting point for support; when the dual-sided supported walker function is needed, the outer sleeve 120 of the left supporting unit and the right supporting unit 200 are folded. The outer sleeves 120 are separated from each other, and the two inner connecting rods 130 rotate around the rotation connection points at the top and bottom thereof, respectively, so that the two inner connecting rods 130 rotate and unfold. When the two inner connecting rods 130 are fully rotated and unfolded in the horizontal direction, the user can respectively put his hands on the two handles 140 to use them, and form support points on the left and right sides of the body through the left and right bases 110 to provide support, thereby improving the stability of auxiliary support walking. In this way, the crutch can be switched to a single-sided support structure or a double-sided support structure according to different usage needs or usage scenarios, thereby better meeting the user's requirements for support stability and enriching the usage functions of the crutch.

[0028] After the inner connecting rod 130 is rotated and unfolded, in order to better maintain the inner connecting rod 130 in the unfolded state, as shown in FIG. Figures 2 to 4 As shown, in this embodiment, a positioning groove 111 is provided at a position at the bottom of the lower receiving groove in the base 110, and the positioning groove 111 is communicated with the lower receiving groove, and a connecting shaft 131 is connected to the bottom of the inner connecting rod 130, and a sliding groove 112 is provided on the side wall of the lower receiving groove, and the sliding groove 112 extends to the positioning groove 111, and the connecting shaft 131 is located in the sliding groove 112, and the connecting shaft 131 can rotate and slide in the sliding groove 112. In actual application, the front and rear sides of the bottom of the inner connecting rod 130 are connected with the connecting shaft 131, and the front and rear side walls of the lower receiving groove are provided with sliding grooves 112, and the two connecting shafts 131 are respectively fitted into the two sliding grooves 112, thereby improving the stability of the inner connecting rod 130 during movement. When the function of the crutch supported on one side is switched to the function of a walker supported on both sides, the inner link 130 rotates in the slide groove 112 with the connecting shaft 131 as the fulcrum, so that the two inner links 130 are unfolded in the left and right directions. When the two inner links 130 are rotated to a horizontal state, the inner link 130 slides along the slide groove 112 through the connecting shaft 131, so that the end of the inner link 130 enters the positioning groove 111. In this way, the rotation of the inner link 130 can be limited by the mutual cooperation between the end of the inner link 130 and the positioning groove 111, so as to better maintain the relative position of the inner link 130 with the base 110 after the rotation and unfolding, thereby improving the stability of the overall structure.

[0029] In the above embodiment, when in use, the base 110 itself can be directly used for ground support, but the base 110 itself can cover a small range when grounded, especially for users with high requirements for force stability, it cannot meet their use requirements. Therefore, in order to further improve the overall stability during use, in this embodiment, the left support unit also includes a front support foot 150 and a rear support foot 160 arranged on the base 110, the front support foot 150 extends to the left front, and the rear support foot 160 extends to the left rear, and the front end of the front support foot 150 and the rear end of the rear support foot 160 both protrude downward from the base 110. The front support foot 150 and the rear support foot 160 are connected to the left support unit and the right support unit 200, so that the front support foot 150 and the rear support foot 160 in the left support unit and the right support unit 200 respectively form an eight-shaped support structure on both sides of the two bases 110, thereby increasing the grounding range when used as a single-side support, thereby further improving the stability during auxiliary support.

[0030] When the whole is switched to the walker function of supporting both sides, the front supporting feet 150 and the rear supporting feet 160 inside the left supporting unit and the right supporting unit 200 are deployed in the front-to-back direction to provide force support. In order to further increase the span of the front supporting feet 150 and the rear supporting feet 160 in the front-to-back direction to improve the stability when applying force, in this embodiment, the positioning groove 111 penetrates the base 110 in the front-to-back direction, the rear end of the front supporting foot 150 extends into the lower storage groove from the front of the positioning groove 111, and the front end of the rear supporting foot 160 extends into the lower storage groove from the rear of the positioning groove 111. The rear end of the front supporting foot 150 and the front end of the rear supporting foot 160 are respectively connected to the bottom of the inner connecting rod 130 through a ball joint 170, and the bottom end of the inner connecting rod 130 can move into the positioning groove 111 and drive the front supporting foot 150 and the rear supporting foot 160 to rotate to the same straight line. In the left support unit and the right support unit 200, the front support leg 150 and the rear support leg 160 extend from the positioning groove 111 into the lower storage groove, respectively, and are connected to the front position and the rear position of the bottom end of the inner connecting rod 130 through the ball joint 170, respectively. When the whole is in a state of single-sided support, the inner connecting rod 130 drives the front support leg 150 and the rear support leg 160 to move into the lower storage groove. At this time, the front support leg 150 and the rear support leg 160 are in an eight-shaped posture on the base 110. When the whole is in a state of double-sided support, the inner connecting rod 130 rotates to a horizontal state and is inserted from the lower storage groove into the positioning groove 111. At this time, the ball joint 170 between the front supporting foot 150 and the rear supporting foot 160 can ensure that the inner connecting rod 130 remains connected with the inner connecting rod 130 when rotating, and when the inner connecting rod 130 moves into the positioning groove 111, the front supporting foot 150 and the rear supporting foot 160 are guided by the internal structure of the positioning groove 111, so that the front supporting foot 150 and the rear supporting foot 160 are rotated to the same straight line. At this time, the front supporting foot 150 and the rear supporting foot 160 are arranged along the front-to-back direction, which can further increase the coverage range of the ground along the front-to-back direction, thereby further improving the stability of the left supporting unit and the right supporting unit 200 when supporting.

[0031] There are various structural forms for the front supporting foot 150 and the rear supporting foot 160 to be driven to move in the left and right directions and to rotate at the same time. For example, connecting rods are respectively provided on the front supporting foot 150 and the rear supporting foot 160 to be connected to the base 110, so that the front supporting foot 150 and the rear supporting foot 160 respectively form a multi-link structure with the base 110. In order to better control the space inside the base 110, in this embodiment, the front and rear parts of the positioning groove 111 are connected to the limiting column 113, the front supporting foot 150 is provided with a front slot hole 151, and the rear supporting foot 160 is provided with a rear slot hole 161, and the two limiting columns 113 are respectively inserted into the front slot hole 151 and the rear slot hole 161. By means of the two limiting columns 113 respectively cooperating with the front slot hole 151 of the front supporting foot 150 and the rear slot hole 161 of the rear supporting foot 160 to limit the position, the front supporting foot 150 and the rear supporting foot 160 can be guided when they are moving. When the inner connecting rod 130 drives the front supporting foot 150 and the rear supporting foot 160 to enter the positioning groove 111, the front supporting foot 150 and the rear supporting foot 160 can respectively rotate around the two limiting columns 113 and slide relatively, so that the front supporting foot 150 and the rear supporting foot 160 can rotate to the same straight line.

[0032] In order to better limit the sliding position of the connecting shaft 131 in the slide groove 112, in the present embodiment, a spring plunger 114 is connected to the bottom of the slide groove 112. When the inner connecting rod 130 drives the front supporting foot 150 and the rear supporting foot 160 to rotate to the same straight line, the spring plunger 114 abuts against the right side of the connecting shaft 131. When the inner connecting rod 130 drives the front supporting foot 150 and the rear supporting foot 160 to enter the positioning groove 111, the connecting shaft 131 at the bottom of the inner connecting rod 130 moves in the sliding groove 112 and passes through the spring plunger 114. At this time, the connecting shaft 131 can elastically squeeze the spring plunger 114. When the inner connecting rod 130 drives the front supporting foot 150 and the rear supporting foot 160 to rotate to the same straight line, the connecting shaft 131 passes over the spring plunger 114. At this time, the spring plunger 114 is against the right side of the connecting shaft 131, which can limit the right movement of the connecting shaft 131, thereby maintaining the position of the connecting shaft 131 in the sliding groove 112, which is conducive to maintaining the stability of the internal structure after the state is switched. When the state needs to be switched again, the inner connecting rod 130 is pulled outward from the base 110 with force so that the connecting shaft 131 passes over the spring plunger 114.

[0033] In some embodiments, the front end of the front support leg 150 and the rear end of the rear support leg 160 are both connected with wear-resistant pads. In practical applications, the wear-resistant pads can be removed from the front end of the front support and the rear end of the rear support leg 160. After long-term use, the wear-resistant pads can be easily replaced. The front support leg 150 and the rear support leg 160 touch the ground through the wear-resistant pads. The wear-resistant pads can be used to protect the front end of the front support leg 150 and the rear end of the rear support leg 160, reduce wear, and thus increase the overall service life.

[0034] There are many ways to connect the two inner links 130 to each other in rotation. For example, the tops of the two inner links 130 are directly connected to a rotating shaft. When the two inner links 130 rotate relative to each other, they rotate around the rotating shaft at the connection. In order to improve the tightness of the two inner links 130 after rotation and folding or rotation and unfolding, in this embodiment, the tops of the two inner links 130 are provided with a relief groove on one side facing each other, and a hinge 300 is connected between the two relief grooves. The relief groove is provided at the rotation connection position of the two inner links 130, so as to store the structure of the rotation connection between the two inner links 130, which is conducive to reducing the space occupied by the two inner links 130 when folded. In addition, the two inner links 130 are connected by the hinge 300 to achieve relative rotation, which makes assembly more convenient. In actual application, after the two inner links 130 are unfolded to the same straight line, the ends of the two inner links 130 are abutted to form a continuous appearance and improve the stability of the structure.

[0035] In some embodiments, the handle 140 is detachably connected to the outer sleeve 120. For example, the handle 140 can be fixed to the top of the outer sleeve 120 by plugging, or by snap connection, thread connection, etc. The handle 140 can be disassembled and replaced from the outer sleeve 120, and the handle 140 can be easily maintained and replaced. Before use, the handle 140 of different specifications and sizes can be installed according to the height required by the user, thereby improving the overall versatility and flexibility during use.

[0036] As a further improvement of the above technical solution, an anti-skid pad is provided on the outer side of the handle 140. When in use, the user can exert force on the handle 140 by contacting the anti-skid pad, and the anti-skid pad can increase the friction with the hand, so that the user is not likely to have relative slippage with the handle 140 when applying force, thereby improving safety during use.

[0037] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multifunctional crutch, characterized in that: include: A left supporting unit comprises a base (110), an outer sleeve (120), an inner connecting rod (130) and a handle (140), wherein the base (110) is connected to the bottom end of the outer sleeve (120), a lower receiving groove is arranged on the right side of the base (110), an upper receiving groove is arranged on the right side of the outer sleeve (120), the upper receiving groove and the lower receiving groove are communicated with each other, the bottom end of the inner connecting rod (130) is rotatably connected to the lower receiving groove along the axis in the front-rear direction, and the handle (140) is connected to the top end of the outer sleeve (120); The right support unit (200) is a left-right symmetrical structure with the left support unit. The top ends of the two inner connecting rods (130) are rotatably connected to each other along the axis in the front-rear direction, and the two outer sleeves (120) are detachably connected.

2. A multifunctional crutch according to claim 1, characterized in that: A positioning groove (111) is provided in the base (110) at a position at the bottom of the lower receiving groove, and the positioning groove (111) is communicated with the lower receiving groove. A connecting shaft (131) is connected to the bottom of the inner connecting rod (130), and a sliding groove (112) is provided on the side wall of the lower receiving groove. The sliding groove (112) extends to the positioning groove (111), and the connecting shaft (131) is located in the sliding groove (112). The connecting shaft (131) can rotate and slide in the sliding groove (112).

3. A multifunctional crutch according to claim 2, characterized in that: The left support unit further comprises a front support leg (150) and a rear support leg (160) which are arranged on the base (110); the front support leg (150) extends toward the left front, and the rear support leg (160) extends toward the left rear; a front end of the front support leg (150) and a rear end of the rear support leg (160) both protrude downward from the base (110).

4. A multifunctional crutch according to claim 3, characterized in that: The positioning groove (111) penetrates the base (110) in the front-to-back direction, the rear end of the front supporting foot (150) extends from the front of the positioning groove (111) into the lower receiving groove, and the front end of the rear supporting foot (160) extends from the rear of the positioning groove (111) into the lower receiving groove, the rear end of the front supporting foot (150) and the front end of the rear supporting foot (160) are respectively connected to the bottom of the inner connecting rod (130) through a ball joint (170), and the bottom end of the inner connecting rod (130) can move into the positioning groove (111) and drive the front supporting foot (150) and the rear supporting foot (160) to rotate to the same straight line.

5. A multifunctional crutch according to claim 4, characterized in that: The front and rear parts of the positioning slot (111) are both connected to limiting columns (113); the front supporting foot (150) is provided with a front slot hole (151); the rear supporting foot (160) is provided with a rear slot hole (161); and the two limiting columns (113) are respectively inserted into the front slot hole (151) and the rear slot hole (161).

6. A multifunctional crutch according to claim 4, characterized in that: A spring plunger (114) is connected to the bottom of the slide groove (112). When the inner connecting rod (130) drives the front supporting leg (150) and the rear supporting leg (160) to rotate to the same straight line, the spring plunger (114) abuts against the right side of the connecting shaft (131).

7. The multifunctional crutch according to claim 3, characterized in that: The front end of the front supporting leg (150) and the rear end of the rear supporting leg (160) are both connected with wear-resistant pads.

8. The multifunctional crutch according to claim 1, characterized in that: An avoidance groove is provided on one side of the tops of the two inner connecting rods (130) facing each other, and a hinge (300) is connected between the two avoidance grooves.

9. The multifunctional crutch according to claim 1, characterized in that: The handle (140) and the outer sleeve (120) are detachably connected.

10. The multifunctional crutch according to claim 1, characterized in that: The outer side of the handle (140) is covered with an anti-slip pad.

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