Height-adjustable axillary crutch

Abstract

The utility model relates to a height-adjustable axillary crutch which comprises two side rods, a sleeve is installed between the two side rods, a supporting rod is inserted in the sleeve, a plurality of first adjusting holes are formed in the outer surface of the sleeve in the height direction of the sleeve, adjusting marbles are installed in the supporting rod, and the adjusting marbles are matched with the first adjusting holes in a positioning mode. The tops of the two side rods are jointly provided with a lifting plate, inserting rods are installed on the two sides of the lower surface of the lifting plate and inserted into the side rods, scale marks are arranged on the outer surfaces of the inserting rods in the length direction of the inserting rods, and first fixing bolts used for locking the inserting rods are installed on the outer surfaces of the side rods. When the armpit crutch is used, the inserting rod is pulled out upwards, the finger of a patient is placed on the inserting rod to determine the specific height, then the height of the whole armpit crutch is adjusted through the adjusting marble and the fine adjustment mechanism, and after the upper surface of the armpit support is matched with the armpit of the patient, the inserting rod is inserted into the side rod again and fixed until the position is reached. The axillary crutch suitable for the patient in height can be safely used.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a height adjustable armpit crutch. BACKGROUND

[0002] Many people need to use armpit crutch as a support tool to assist walking due to reasons such as hemiplegia, fracture, joint disease, ankle sprain after stroke, most of the armpit crutches are aluminum or wooden, and need to be adjusted to the appropriate height for the patient to use.

[0003] At present, one of the commonly used height adjustment methods in clinic is that the patient stands upright on the flat ground, wears shoes, and the armpit crutch is placed on the body side, the length of the armpit crutch is adjusted to leave a gap of 2-3 fingers between the highest point of the armpit crutch and the armpit.

[0004] However, in actual height adjustment, the gap of 2-3 fingers between the highest point of the armpit crutch and the armpit is abstract, and it is difficult to achieve accurate measurement and adjustment, thereby affecting the use effect of the armpit crutch. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a height adjustable armpit crutch which is convenient to accurately adjust the height.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows.

[0007] A height adjustable armpit crutch, comprising two side rods, a sleeve is installed between the two side rods, a support rod is inserted in the inside of the sleeve, a plurality of first adjusting holes are opened on the outer surface of the sleeve along the height direction thereof, an adjusting bead is installed in the inside of the support rod, the adjusting bead is positioned and matched with the first adjusting hole, a lifting plate is commonly arranged on the top of the two side rods, plug rods are installed on both sides of the lower surface of the lifting plate and are inserted in the side rods, a scale line is arranged on the outer surface of the plug rod along the length direction thereof, and a first fixing bolt for locking the plug rod is installed on the outer surface of the side rod.

[0008] Therefore, the plug rod is pulled out upward, the specific height is determined by placing the patient's fingers on the plug rod, the height of the armpit support is fixed by tightening the first fixing bolt, then the height of the whole armpit crutch is adjusted through the adjusting bead and the fine adjustment mechanism, after the upper surface of the armpit support matches the armpit of the patient, the plug rod is inserted into the side rod again and the first fixing bolt is tightened for fixation, at this time, the height of the armpit support is correspondingly lowered to the height distance measured before, and thus the armpit crutch with a suitable height for the patient can be safely used.

[0009] Further, the fine adjustment mechanism comprises two limiting rods connected to the lower surface of the lifting plate, and the ends of the limiting rods penetrate below the lifting plate, a threaded rod is penetrated through the inside of the lifting plate and is threadedly connected, the end of the threaded rod is rotationally connected to the lower surface of the armpit support, and the threaded rod is arranged at the middle position between the two limiting rods, and a torsion block is mounted at the bottom of the threaded rod.

[0010] Since there is a certain distance between the two first adjustment holes, the height of the armpit support cannot be accurately adjusted, and therefore, through the arrangement of the fine adjustment mechanism, the limiting rods on both sides provide stable limiting action for the armpit support, and when the torsion block is twisted to drive the threaded rod to rotate, the armpit support can be lifted, so that the height of the armpit support can be accurately adjusted in cooperation with the use of the first adjustment hole and the adjustment ball, and the comfort and safety of the patient are improved.

[0011] Further, a plurality of positioning holes are arranged on the lower surface of the lifting plate coaxially around the threaded rod, and a second fixing bolt is mounted in the inside of the torsion block, and the second fixing bolt is matched with the positioning hole.

[0012] In order to prevent the threaded rod from loosening and reversing, causing the height of the armpit support to change, after the height of the armpit support is adjusted by twisting the torsion block, the second fixing bolt is screwed into the positioning hole corresponding to the current position, so that the torsion block can be locked to prevent the threaded rod from loosening and reversing.

[0013] Further, the bottom of the supporting rod is provided with an anti-skid pad.

[0014] Through the arrangement of the anti-skid pad, not only the buffering effect can be provided, but also the friction between the supporting rod and the ground can be increased to reduce the slipping condition.

[0015] Further, a plurality of second adjustment holes are arranged on the outer surface of the two side rods along the height direction thereof, and the two ends of the handle are connected with the second adjustment holes through third fixing bolts.

[0016] Through the arrangement of the second adjustment hole and the third fixing bolt, the height of the handle can be adjusted to meet the gripping experience of patients of different heights.

[0017] Further, a limiting sliding groove is arranged in the inside of the sleeve along the height direction thereof, a limiting sliding block is arranged on the outer surface of the supporting rod along the height direction thereof, and the limiting sliding block is arranged in the limiting sliding groove.

[0018] Through the arrangement of the limiting sliding groove and the limiting sliding block, the angle of the supporting rod can be limited so that it cannot be rotated, and it is ensured that the adjustment ball is always at the angle corresponding to the first adjustment hole, and the convenience of adjusting the supporting rod is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective structure schematic view of the utility model;

[0020] Figure 2 is a front view structure schematic view of the utility model;

[0021] Figure 3 is a region structure schematic view of the lifting plate in the utility model;

[0022] Figure 4 is Figure 1 an enlarged schematic view of A in the middle.

[0023] In the figure: 100, side rod; 101, support rod; 102, handle; 103, lifting plate; 104, plug rod; 105, scale line; 106, first fixing bolt; 107, armpit support; 108, sleeve; 109, first adjusting hole; 110, adjusting ball; 200, fine adjustment mechanism; 201, limiting rod; 202, threaded rod; 203, torsion block; 300, positioning hole; 301, second fixing bolt; 400, non-slip pad; 500, second adjusting hole; 501, third fixing bolt; 600, limiting sliding groove; 601, limiting sliding block. DETAILED DESCRIPTION

[0024] The utility model will be described in detail below in combination with the drawings.

[0025] As Figures 1-4 shown, an adjustable height armpit crutch, including two side rods 100, two side rods 100 between installing have sleeve 108, the inside of sleeve 108 inserts with support rod 101, the outer surface of sleeve 108 is along its height direction and is set with a plurality of first adjusting holes 109, the inside of support rod 101 installs with adjusting ball 110, adjusting ball 110 and first adjusting hole 109 positioning cooperation, the top of two side rods 100 is commonly provided with lifting plate 103, and the lower surface of lifting plate 103 both sides are installed with plug rod 104, and plug rod 104 inserts in side rod 100, and the outer surface of plug rod 104 is provided with scale line 105 along its length direction, and the outer surface of side rod 100 is installed with the first fixing bolt 106 for locking plug rod 104. The upper side of lifting plate 103 is installed with armpit support 107 through fine adjustment mechanism 200, and two side rods 100 are provided with handle 102 between.

[0026] When adjusting the height, first loosen the first fixing bolt 106 to cancel the fixation of the insertion rod 104, then pull the insertion rod 104 out of the side rod 100 upward, then determine the specific height by placing the patient's fingers on the insertion rod 104, tighten the first fixing bolt 106 to fix the height of the armpit support 107, then adjust the telescopic length of the support rod 101 through the first adjusting hole 109 and the adjusting ball 110, and accurately adjust the height of the armpit support 107 through the fine adjustment mechanism 200 until the patient stands straight on the flat ground, wears shoes, and naturally drops hands, the upper surface of the armpit support 107 matches the armpit of the patient, then re-insert the insertion rod 104 into the side rod 100 and tighten the first fixing bolt 106 to fix it, at this time the height of the armpit support 107 is lowered by the height distance measured before, and thus the armpit crutch with a suitable patient height can be safely used.

[0027] Specifically, the fine adjustment mechanism 200 includes two limiting rods 201 connected to the lower surface of the lifting plate 103, and the ends of the limiting rods 201 penetrate to the lower part of the lifting plate 103, the inside of the lifting plate 103 penetrates and is threadedly connected with a threaded rod 202, and the end of the threaded rod 202 is rotationally connected with the lower surface of the armpit support 107, and the threaded rod 202 is arranged at the middle position between the two limiting rods 201, and the bottom of the threaded rod 202 is provided with a torsion block 203. Since there is a certain distance between the two adjacent first adjusting holes 109, the height of the armpit support 107 cannot be accurately adjusted, therefore, through the arrangement of the fine adjustment mechanism 200, the limiting rods 201 on both sides provide stable limiting action for the armpit support 107, when the torsion block 203 drives the threaded rod 202 to rotate, the armpit support 107 can be lifted, and thus, in cooperation with the use of the first adjusting hole 109 and the adjusting ball 110, the height of the armpit support 107 can be accurately adjusted, improving the comfort and safety of the patient.

[0028] Specifically, a plurality of positioning holes 300 are arranged on the lower surface of the lifting plate 103 coaxially around the threaded rod 202, and a second fixing bolt 301 is arranged in the inside of the torsion block 203, and the second fixing bolt 301 is matched with the positioning hole 300. In order to prevent the threaded rod 202 from loosening and reversing, causing the height of the armpit support 107 to change, after the height of the armpit support 107 is adjusted by rotating the torsion block 203, the second fixing bolt 301 is screwed into the positioning hole 300 corresponding to the current position, so that the torsion block 203 can be locked, avoiding the loosening and reversing of the threaded rod 202.

[0029] Specifically, the bottom of the support rod 101 is provided with a non-slip pad 400, and through the arrangement of the non-slip pad 400, not only the buffering effect can be provided, but also the friction between the support rod 101 and the ground can be increased, reducing the slipping condition.

[0030] Specifically, the outer surface of the two side rods 100 is provided with a plurality of second adjusting holes 500 along the height direction thereof, and the two ends of the handle 102 are connected with the second adjusting holes 500 through third fixing bolts 501, so that the height of the handle 102 can be adjusted through the second adjusting holes 500 and the third fixing bolts 501, thereby meeting the gripping experience of patients with different heights.

[0031] Specifically, the inside of the sleeve 108 is provided with a limiting sliding groove 600 along the height direction thereof, and the outer surface of the supporting rod 101 is provided with a limiting sliding block 601 along the height direction thereof, and the limiting sliding block 601 is arranged in the limiting sliding groove 600, so that the angle of the supporting rod 101 can be limited through the limiting sliding groove 600 and the limiting sliding block 601, and the supporting rod 101 cannot rotate, thereby ensuring that the adjusting bead 110 is always at the angle corresponding to the first adjusting hole 109, and improving the convenience of adjusting the supporting rod 101.

[0032] The above is a detailed description of the utility model in combination with specific embodiments, and the specific implementation mode of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, a number of equivalent substitutions or obvious modifications can be made without departing from the concept of the utility model, and the same performance or use should be regarded as belonging to the patent protection range determined by the submitted claims.

Claims

1. A height-adjustable armpit crutch, comprising two side bars (100), characterized in that: A sleeve (108) is installed between the two side rods (100). A support rod (101) is inserted inside the sleeve (108). A plurality of first adjustment holes (109) are opened on the outer surface of the sleeve (108) along its height direction. An adjustment ball (110) is installed inside the support rod (101). The adjustment ball (110) is positioned and engaged with the first adjustment hole (109). A lifting plate (103) is provided on the top of the two side rods (100). A plug rod (104) is installed on both sides of the lower surface of the lifting plate (103). The plug rod (104) is inserted into the side rod (100). A scale line (105) is provided on the outer surface of the plug rod (104) along its length direction. A first fixing bolt (106) for locking the plug rod (104) is installed on the outer surface of the side rod (100). An armpit support (107) is installed on the upper side of the lifting plate (103) via a fine-tuning mechanism (200), and a handle (102) is provided between the two side bars (100).

2. The adjustable-height armpit crutch according to claim 1, characterized in that: The fine-tuning mechanism (200) includes two limiting rods (201) connected to the lower surface of the lifting plate (103), and the ends of the limiting rods (201) extend through to the lower part of the lifting plate (103). A threaded rod (202) is threaded through and threadedly connected to the interior of the lifting plate (103), and the end of the threaded rod (202) is rotatably connected to the lower surface of the armpit support (107). The threaded rod (202) is located at the middle position between the two limiting rods (201), and a torsion block (203) is installed at the bottom of the threaded rod (202).

3. The adjustable-height armpit crutch according to claim 2, characterized in that: The lower surface of the lifting plate (103) is provided with a plurality of positioning holes (300) arranged coaxially around the threaded rod (202). A second fixing bolt (301) is installed inside the torsion block (203), and the second fixing bolt (301) is adapted to the positioning holes (300).

4. The adjustable-height armpit crutch according to claim 3, characterized in that: The bottom of the support rod (101) is provided with an anti-slip pad (400).

5. The adjustable-height armpit crutch according to claim 4, characterized in that: The outer surfaces of the two side rods (100) are provided with a plurality of second adjustment holes (500) along their height direction, and both ends of the grip (102) are connected to the second adjustment holes (500) by a third fixing bolt (501).

6. The height-adjustable armpit crutch according to claim 1, characterized in that: The sleeve (108) has a limiting groove (600) inside along its height direction, and the support rod (101) has a limiting slider (601) on its outer surface along its height direction. The limiting slider (601) is located in the limiting groove (600).

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