CN215584763U

CN215584763U - Hand-free walking stick with adjustable supporting gravity center

Info

Publication number: CN215584763U
Application number: CN202022320227.8U
Authority: CN
Inventors: 纪律
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-01-21
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to a hand-free crutch with adjustable supporting gravity center, which comprises a thigh saddle, a thigh restraint strap, a landing leg platform, a shank restraint strap, an upper supporting piece, a lower supporting piece and a foot piece, wherein an automatic supporting gravity center adjusting mechanism is arranged between the upper end of the lower supporting piece and the landing leg platform; the sliding seat that supports among the focus automatic regulating mechanism is installed in the bottom of landing leg platform, lower support piece's upper end and sliding block fixed connection, the sliding block slides and assembles in the sliding seat, the lead screw sets up along the length direction of landing leg platform, the both ends of lead screw rotate respectively and install in the lead screw seat at sliding seat both ends, the bottom rear end at the landing leg platform is installed to the motor, motor output shaft and lead screw rear end coaxial coupling, the battery sets up on the motor both sides, the battery is connected with the motor electricity. According to the utility model, the automatic supporting gravity center adjusting mechanism is arranged between the upper end of the lower supporting piece and the supporting leg platform, so that the supporting gravity center can be flexibly adjusted according to the requirements of patients, and the comfort of the patients in use is ensured.

Description

Hand-free walking stick with adjustable supporting gravity center

Technical Field

The utility model relates to a walking stick, in particular to a hand-free walking stick with adjustable supporting gravity center, belonging to the technical field of medical rehabilitation auxiliary tools.

Background

The walking stick is a medical rehabilitation auxiliary tool suitable for being used by handicapped persons such as the old, the disabled and the like, but the walking stick commonly used at present needs to be supported by hands, for some users with injured legs and needing to use both hands, the existing walking stick needing to be supported by hands cannot meet the requirements, and some artificial limbs needing not to be supported by hands are also suitable for patients with incomplete legs, and for patients with injured legs but without incomplete legs, the artificial limbs cannot be used.

Patent application No. CN201280063131.3 discloses a hands-free crutch including a leg platform on which a strap can be used to hold the leg in a forward position and a ground contact, and a thigh saddle that can help prevent lateral movement of the user's thigh relative to the crutch. However, according to the feedback of the patient, the hand-free crutch has the following defects in practical use: 1. in the hand-free crutch, the supporting point of the lower supporting piece on the supporting leg platform is positioned at the front end of the supporting leg platform, and when a lower leg of a patient is placed on the supporting leg platform, the center of gravity of the lower leg is back, and the patient feels uncomfortable when standing still for a long time; 2. this hands-free walking stick lacks the reliable part that supplies the patient to support, though is provided with the handle at the thigh saddle, the position of handle is lower, and the patient mostly needs to bend over when using, and short time use is still not big, but if the patient bends over for a long time and supports the handle, then produces tired sense very easily.

Therefore, there is a need for an improved design of the existing hands-free crutch to overcome the above-mentioned problems during the use thereof.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the hand-free crutch with the adjustable supporting gravity center, which has the advantages of ingenious structure, reasonable design, flexible adjustment of the supporting gravity center according to the requirements of patients, guarantee of comfortable use of the patients, convenience for the patients to hold when walking, comfort, labor saving and safety due to the additionally arranged detachable auxiliary grip.

According to the technical scheme provided by the utility model: the support gravity center adjustable hands-free crutch comprises a thigh saddle, a thigh restraint belt, a leg platform, a shank restraint belt, an upper support part, a lower support part and a foot part, wherein the lower end of the upper support part is connected with the leg platform, the upper end of the upper support part is connected with the thigh saddle, the thigh restraint belt is installed on the thigh saddle, the shank restraint belt is installed on the leg platform, the upper end of the lower support part is connected with the bottom of the leg platform, and the foot part is installed at the lower end of the lower support part; the method is characterized in that: an automatic supporting gravity center adjusting mechanism is arranged between the upper end of the lower supporting piece and the supporting leg platform; the automatic supporting gravity center adjusting mechanism comprises a sliding seat, a sliding block, a screw rod, a motor, a coupling and a storage battery, the sliding seat is arranged at the bottom of the landing leg platform, the length direction of the sliding seat is parallel to the length direction of the landing leg platform, the upper end of the lower supporting piece is fixedly connected with a sliding block which is assembled in a sliding seat in a sliding way, the screw rod is arranged along the length direction of the landing leg platform, the two ends of the bottom of the sliding seat are respectively provided with a screw rod seat, two ends of the screw rod are respectively and rotatably arranged in the screw rod seats at the two ends, the motor is arranged at the rear end of the bottom of the landing leg platform, an output shaft of the motor is coaxially connected with the rear end of the screw rod through a coupler, the storage battery is arranged on two sides of the motor and fixedly arranged on the landing leg platform, the storage battery is electrically connected with the motor, and the switch and the forward and reverse rotation buttons for controlling the motor are arranged on the landing leg platform.

As a further improvement of the utility model, the thigh saddle comprises a saddle, a side saddle and a fixing screw, wherein the saddle is arc-shaped, saddle through holes are respectively formed in the two ends of the saddle, saddle connecting blocks are respectively arranged on the back sides of the two ends of the saddle, and arc-shaped long holes are formed in the saddle connecting blocks; the side saddle comprises a leg attaching saddle plate and a saddle connecting block integrally arranged on the back of the leg attaching saddle plate, and a saddle through hole and a screw mounting hole are formed in the saddle connecting block; the two side saddles are symmetrically arranged at the inner end and the outer end of the saddle, the saddle through hole is vertically aligned with the saddle through hole, the upper supporting piece comprises an outer telescopic rod and an inner telescopic rod, the upper end of the inner telescopic rod is inserted in the saddle through hole of the side saddle at the inner side and the saddle through hole at the inner end of the saddle, and the upper end of the outer telescopic rod is inserted in the saddle through hole of the side saddle at the outer side and the saddle through hole at the outer end of the saddle; the arc-shaped long hole corresponds to the screw mounting hole, and the fixing screw penetrates through the arc-shaped long hole and is in threaded connection with the screw mounting hole; two ends of the thigh restraint strap are respectively connected to the leg attaching saddle plates of the two side saddles.

As a further improvement of the utility model, the lower side edge of the inner surface of the saddle is provided with a widened part extending downwards.

As a further improvement of the utility model, an auxiliary handle is arranged on the thigh saddle.

As a further improvement of the utility model, the auxiliary handle comprises a handle, a handle rod and a handle rod seat, the handle is arranged at the upper end of the handle rod, the lower end of the handle rod is connected to the upper part of one end of the handle rod seat, the other end of the handle rod seat is provided with a first handle fixing hole, the middle part of the handle rod seat is provided with a second handle fixing hole, the middle part of the saddle platform is provided with a first saddle platform fixing hole, the outer end of the saddle platform is provided with a second saddle platform fixing hole, a first fastening screw is arranged in the first handle fixing hole and the first saddle platform fixing hole, a second fastening screw is arranged in the second handle fixing hole and the second saddle platform fixing hole, and the handle rod seat is fixed on the saddle platform through the first fastening screw and the second fastening screw.

As a further improvement of the utility model, the lower supporting piece comprises a telescopic supporting rod, the periphery of the upper end of the telescopic supporting rod is provided with a connecting lug, the connecting lug is fixedly connected to the sliding block through a screw, and the lower end of the telescopic supporting rod is provided with the foot piece.

As a further improvement of the utility model, two sides of the sliding seat are respectively provided with a centering groove rail parallel to the sliding seat, a centering sliding block is arranged in the centering groove rail in a sliding manner, the bottom of the centering sliding block is connected with a centering rod, and the other end of the centering rod is fixedly arranged on the lower supporting piece through a locking clamp.

Compared with the prior art, the utility model has the following advantages:

1) the utility model has the advantages of ingenious structure and reasonable design, and the automatic supporting gravity center adjusting mechanism is arranged between the upper end of the lower supporting piece and the supporting leg platform, so that the supporting gravity center can be flexibly adjusted according to the requirements of patients, and the comfort of the patients in use is ensured.

2) The overall shape of the thigh saddle can be flexibly adjusted according to the leg circumference of a patient, so that the thigh saddle can be better attached to the front side, the left side and the right side of the thigh of the patient, and the restraint fixing effect is ensured.

3) The auxiliary handle which can be conveniently detached is arranged in the walking aid, so that the walking aid is convenient for a patient to hold when the patient walks, and is comfortable, labor-saving and safe.

Drawings

Fig. 1 is a front view of the structure of embodiment 1 of the present invention.

Fig. 2 is a structural side view of embodiment 1 of the present invention.

Fig. 3 is a partial sectional view taken along line a-a in fig. 1.

Fig. 4 is a schematic perspective view of the upper half of the embodiment of the utility model.

Fig. 5 is a front view of the structure of embodiment 2 of the present invention.

Description of reference numerals: 1-thigh saddle, 1.1-saddle, 1.1 a-saddle connecting block, 1.1 b-arc long hole, 1.2-side saddle, 1.2 a-leg-attaching saddle plate, 1.2 b-saddle connecting block, 1.3-fixing screw, 2-thigh restraint belt, 3-leg platform, 4-shank restraint belt, 5-upper support piece, 5.1-outer telescopic rod, 5.2-inner telescopic rod, 6-lower support piece, 6.1-telescopic support rod, 6.1 a-connecting lug, 6.2-screw, 7-foot piece, 8-auxiliary handle, 8.1-handle, 8.2-handle rod, 8.3-handle rod seat, 8.4-first fastening screw, 8.5-second fastening screw, 9-sliding seat, 10-sliding block, 11-screw rod, 12-motor, 9-sliding block, and the like, 13-coupler, 14-storage battery, 15-righting groove rail, 16-righting slide block, 17-righting rod and 18-locking hoop.

Detailed Description

The utility model is further illustrated by the following specific figures and examples.

Example 1

As shown in fig. 1 to 4, embodiment 1 discloses a hands-free crutch with an adjustable supporting center of gravity, which includes a thigh saddle 1, a thigh restraint strap 2, a leg platform 3, a shank restraint strap 4, an upper support 5, a lower support 6 and a foot 7, wherein the lower end of the upper support 5 is connected with the leg platform 3, the upper end of the upper support 5 is connected with the thigh saddle 1, the thigh restraint strap 2 is installed on the thigh saddle 1, the shank restraint strap 4 is installed on the leg platform 3, the upper end of the lower support 6 is connected with the bottom of the leg platform 3, and the lower end of the lower support 6 is connected with the foot 7; a supporting gravity center automatic adjusting mechanism is arranged between the upper end of the lower supporting piece 6 and the supporting leg platform 3; the automatic gravity center supporting adjusting mechanism comprises a sliding seat 9, a sliding block 10, a screw rod 11, a motor 12, a shaft coupler 13 and a storage battery 14, wherein the sliding seat 9 is installed at the bottom of the landing leg platform 3, the length direction of the sliding seat 9 is parallel to the length direction of the landing leg platform 3, the upper end of the lower supporting piece 6 is fixedly connected with the sliding block 10, the sliding block 10 is assembled in the sliding seat 9 in a sliding mode, the screw rod 11 is arranged along the length direction of the landing leg platform 3, screw rod seats 9a are respectively arranged at two ends of the bottom of the sliding seat 9, two ends of the screw rod 11 are respectively rotatably installed in the screw rod seats 9a at two ends, the motor 12 is installed at the rear end of the bottom of the landing leg platform 3, an output shaft of the motor 12 is coaxially connected with the rear end of the screw rod 11 through the shaft coupler 13, the storage battery 14 is arranged on two sides of the motor 12 and is fixedly installed on the landing leg platform 3, the storage battery 14 is electrically connected with the motor 12, and a switch and a forward and reverse button for controlling the motor 12 are both arranged on the landing leg platform 3.

During the specific use, the affected limb of patient's one side that needs to support is crooked, and the shank is placed on landing leg platform 3 and is restrained fixedly by shank restraint strap 4, and patient's thigh front side supports and leans on thigh saddle 1 and utilizes thigh restraint strap 2 to restrain fixedly. When a patient feels that the supporting gravity center of the crutch leans forwards or backwards in the using process to cause discomfort, the supporting gravity center can be adjusted by the automatic supporting gravity center adjusting mechanism. During adjustment, firstly, a switch for controlling the motor 12 is turned on, then the rotating direction of the motor 12 is controlled by utilizing a forward and reverse rotating button, the motor 12 drives the screw rod 11 to rotate, the screw rod 11 drives the sliding block 10 to move, so that the lower supporting piece 6 is driven to move back and forth, after the lower supporting piece 6 is adjusted to a proper position, the switch of the motor 12 is turned off, and the adjustment of the supporting gravity center is completed, so that a patient feels more comfortable when using the device.

As shown in fig. 4, in this embodiment 1, the thigh saddle 1 includes a saddle 1.1, a side saddle 1.2 and a fixing screw 1.3, the saddle 1.1 is arc-shaped, saddle through holes are respectively opened at both ends of the saddle 1.1, saddle connecting blocks 1.1a are respectively arranged at the back sides of both ends of the saddle 1.1, and arc-shaped long holes 1.1b are opened in the saddle connecting blocks 1.1 a; the side saddle 1.2 comprises a leg attaching saddle plate 1.2a and a saddle connecting block 1.2b integrally arranged on the back of the leg attaching saddle plate 1.2a, and a saddle through hole and a screw mounting hole are formed in the saddle connecting block 1.2 b; the two side saddles 1.2 are symmetrically arranged at the inner end and the outer end of the saddle 1.1, saddle through holes are vertically aligned with the saddle through holes, the upper supporting piece 5 comprises an outer telescopic rod 5.1 and an inner telescopic rod 5.2, the upper end of the inner telescopic rod 5.2 is inserted into the saddle through hole of the side saddle 1.2 at the inner side and the saddle through hole at the inner end of the saddle 1.1, and the upper end of the outer telescopic rod 5.1 is inserted into the saddle through hole of the side saddle 1.2 at the outer side and the saddle through hole at the outer end of the saddle 1.1; the arc-shaped long hole 1.1b corresponds to the screw mounting hole, and the fixing screw 1.3 penetrates through the arc-shaped long hole 1.1b and then is in threaded connection with the screw mounting hole; two ends of the thigh restraint strap 2 are respectively connected to the leg attaching saddle plates 1.2a of the two side saddles 1.2. So set up, thigh saddle 1's whole shape can be adjusted according to patient's leg circumstances is nimble, ensures that thigh saddle 1 can laminate the front side and the left and right sides of patient's thigh better, guarantees the fixed effect of restraint.

As shown in fig. 1, in the present embodiment 1, the lower side of the inner surface of the saddle 1.1 is provided with a widened portion extending downward. So set up, increased the area of contact of thigh saddle 1 with patient's thigh, improve the travelling comfort that the patient used.

As shown in fig. 1 and 2, in the present embodiment 1, the thigh saddle 1 is provided with an auxiliary grip 8, so that the patient can conveniently hold the thigh saddle during walking, and the thigh saddle is comfortable, labor-saving and safe.

As shown in fig. 1, 2 and 4, in this embodiment 1, the auxiliary handle 8 includes a handle 8.1, a handle bar 8.2 and a handle bar base 8.3, the handle 8.1 is installed at the upper end of the handle bar 8.2, the lower end of the handle bar 8.2 is connected to the upper portion of one end of the handle bar base 8.3, the other end of the handle bar base 8.3 is provided with a first handle fixing hole, the middle of the handle bar base 8.3 is provided with a second handle fixing hole, the middle of the saddle 1.1 is provided with a first saddle fixing hole, the outer end of the saddle 1.1 is provided with a second saddle fixing hole, the first handle fixing hole and the first saddle fixing hole are internally provided with a first fastening screw 8.4, the second handle fixing hole and the second saddle fixing hole are internally provided with a second fastening screw 8.5, and the handle bar base 8.3 is fixed on the saddle 1.1 through the first fastening screw 8.4 and the second fastening screw 8.5. So set up, supplementary handle 8 can be installed according to patient's needs and go or dismantle, and the outside at thigh saddle 1 is installed to supplementary handle 8's position, is convenient for like this to support.

As shown in fig. 3, in the present embodiment 1, the lower supporting member 6 includes a telescopic supporting rod 6.1, the upper end periphery of the telescopic supporting rod 6.1 is provided with a connecting lug 6.1a, the connecting lug 6.1a is fastened to the sliding block 10 by a screw 6.2, and the lower end of the telescopic supporting rod 6.1 is mounted with the foot member 7. So set up, the length of lower support piece 6 can be adjusted in a flexible way, can conveniently dismantle simultaneously.

In the present invention, the lower leg restraint strap 4 and the thigh restraint strap 2 can be made of a conventional product with binding and fixing purposes in the prior art, and the foot piece 7 can also be made of a product with similar functions in the prior art, and they are not technical innovation points of the present application, so the structures of the above parts are not further detailed here.

Example 2

As shown in fig. 5, embodiment 2 discloses a hands-free crutch with adjustable supporting center of gravity, which is different from embodiment 1 in that: the two sides of the sliding seat 9 are respectively provided with a centering groove rail 15 parallel to the sliding seat, a centering sliding block 16 is arranged in the centering groove rail 15 in a sliding mode, the bottom of the centering sliding block 16 is connected with a centering rod 17, and the other end of the centering rod 17 is fixedly installed on the lower supporting piece 6 through a locking hoop 18. So set up, can strengthen the firm degree of being connected between support piece 6 and the landing leg platform 3 down, ensure the hand-free walking stick safe and reliable.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims

1. The support gravity center adjustable hands-free crutch comprises a thigh saddle (1), a thigh restraint strap (2), a leg platform (3), a shank restraint strap (4), an upper support piece (5), a lower support piece (6) and a foot piece (7), wherein the lower end of the upper support piece (5) is connected with the leg platform (3), the upper end of the upper support piece (5) is connected with the thigh saddle (1), the thigh restraint strap (2) is installed on the thigh saddle (1), the shank restraint strap (4) is installed on the leg platform (3), the upper end of the lower support piece (6) is connected to the bottom of the leg platform (3), and the foot piece (7) is installed at the lower end of the lower support piece (6); the method is characterized in that: an automatic supporting gravity center adjusting mechanism is arranged between the upper end of the lower supporting piece (6) and the supporting leg platform (3); the automatic supporting gravity center adjusting mechanism comprises a sliding seat (9), a sliding block (10), a screw rod (11), a motor (12), a shaft coupling (13) and a storage battery (14), wherein the sliding seat (9) is installed at the bottom of a landing leg platform (3), the length direction of the sliding seat (9) is parallel to the length direction of the landing leg platform (3), the upper end of a lower supporting piece (6) is fixedly connected with the sliding block (10), the sliding block (10) is assembled in the sliding seat (9) in a sliding mode, the screw rod (11) is arranged along the length direction of the landing leg platform (3), the screw rod seats (9a) are respectively arranged at the two ends of the bottom of the sliding seat (9), the two ends of the screw rod (11) are respectively rotatably installed in the screw rod seats (9a) at the two ends, the motor (12) is installed at the rear end of the bottom of the landing leg platform (3), the output shaft of the motor (12) is coaxially connected with the rear end of the screw rod (11) through the shaft coupling (13), the storage battery (14) is arranged on two sides of the motor (12) and is fixedly arranged on the landing leg platform (3), the storage battery (14) is electrically connected with the motor (12), and a switch and a forward and reverse button of the control motor (12) are arranged on the landing leg platform (3).

2. The hands-free crutch of claim 1 with an adjustable center of gravity, wherein: the thigh saddle (1) comprises a saddle (1.1), side saddles (1.2) and fixing screws (1.3), wherein the saddle (1.1) is arc-shaped, saddle through holes are respectively formed in two ends of the saddle (1.1), saddle connecting blocks (1.1a) are respectively arranged on the back sides of the two ends of the saddle (1.1), and arc-shaped long holes (1.1b) are formed in the saddle connecting blocks (1.1 a); the side saddle (1.2) comprises a leg attaching saddle plate (1.2a) and a saddle connecting block (1.2b) integrally arranged on the back of the leg attaching saddle plate (1.2a), and a saddle through hole and a screw mounting hole are formed in the saddle connecting block (1.2 b); the two side saddles (1.2) are symmetrically arranged at the inner end and the outer end of the saddle (1.1), the saddle through hole is vertically aligned with the saddle through hole, the upper supporting piece (5) comprises an outer telescopic rod (5.1) and an inner telescopic rod (5.2), the upper end of the inner telescopic rod (5.2) is inserted into the saddle through hole of the side saddle (1.2) at the inner side and the saddle through hole at the inner end of the saddle (1.1), and the upper end of the outer telescopic rod (5.1) is inserted into the saddle through hole of the side saddle (1.2) at the outer side and the saddle through hole at the outer end of the saddle (1.1); the arc-shaped long hole (1.1b) corresponds to the screw mounting hole, and the fixing screw (1.3) penetrates through the arc-shaped long hole (1.1b) and then is in threaded connection with the screw mounting hole; two ends of the thigh restraint strap (2) are respectively connected to leg attaching saddle plates (1.2a) of the two side saddles (1.2).

3. The hands-free crutch of claim 2 with an adjustable center of gravity, further comprising: the lower side edge of the inner surface of the saddle (1.1) extends downwards to form a widened part.

4. The hands-free crutch of claim 2 with an adjustable center of gravity, further comprising: an auxiliary grip (8) is arranged on the thigh saddle (1).

5. The hands-free crutch of claim 4 with an adjustable center of gravity, further comprising: the auxiliary handle (8) comprises a handle (8.1), a handle rod (8.2) and a handle rod seat (8.3), the handle (8.1) is installed at the upper end of the handle rod (8.2), the lower end of the handle rod (8.2) is connected to the upper portion of one end of the handle rod seat (8.3), a first handle fixing hole is formed in the other end of the handle rod seat (8.3), a second handle fixing hole is formed in the middle of the handle rod seat (8.3), a first saddle fixing hole is formed in the middle of the saddle (1.1), a second saddle fixing hole is formed in the outer end of the saddle (1.1), a first fastening screw (8.4) is installed in the first handle fixing hole and the first saddle fixing hole, a second fastening screw (8.5) is installed in the second handle fixing hole and the second saddle fixing hole, and the handle rod seat (8.3) is fixed to the saddle (1.1) through the first fastening screw (8.4) and the second fastening screw (8.5).

6. The hands-free crutch of claim 1 with an adjustable center of gravity, wherein: lower support piece (6) are including telescopic bracing piece (6.1), the upper end periphery of telescopic bracing piece (6.1) is equipped with engaging lug (6.1a), engaging lug (6.1a) pass through screw (6.2) fastening connection on sliding block (10), the lower extreme installation of telescopic bracing piece (6.1) sufficient piece (7).

7. The hands-free crutch of claim 1 with an adjustable center of gravity, wherein: the two sides of the sliding seat (9) are respectively provided with a centering groove rail (15) parallel to the sliding seat, a centering sliding block (16) is arranged in the centering groove rail (15) in a sliding mode, the bottom of the centering sliding block (16) is connected with a centering rod (17), and the other end of the centering rod (17) is fixedly installed on the lower supporting piece (6) through a locking clamp (18).