Leg muscle exercising device

Abstract

The utility model relates to the technical field of exercise devices, and discloses a leg muscle exercise device which comprises a base, an exercise assembly is arranged on the base, installation grooves are formed in the positions, close to the four corners, of the lower end face of the base, installation boxes are arranged in the installation grooves, and installation cavities with downward openings are formed in the installation boxes. Opposite supporting plates are further arranged on the lower end face of the base, supporting rods are arranged on the supporting plates, opposite box bodies are arranged on the lower end face of the base, cavities are formed in the box bodies, and positioning assemblies are arranged in the cavities. By means of the structure, the position of the supporting rod after sliding is positioned through the positioning assembly, the base and the pedal plate can keep the adjusted height, and therefore the height of the pedal plate on the base can be adjusted according to the leg length of a patient; patients with different leg lengths can exercise the muscles of the legs through the pedal plate when sitting on the chair, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of exercise devices, and specifically, to a leg muscle exercise device. Background Art

[0002] In modern society, there are some disabled people with inconvenient lower limb movement due to diseases or accidents. In order to restore the lower limb strength of the disabled people, the disabled people are usually allowed to use a rehabilitation exercise bike for lower limb rehabilitation exercises.

[0003] For example, an electric rehabilitation exercise bike disclosed in the patent with the publication number CN219721823U solves the technical problem that the crank in the existing electric rehabilitation exercise bike may touch other objects when rotating. However, when the electric rehabilitation exercise bike is actually used, the patient usually sits on a chair and places the feet on the corresponding pedal assembly for lower limb rehabilitation exercises. Since the leg lengths of different patients are different, when a patient with shorter legs sits on the chair, the feet may not be able to be placed on the corresponding pedal assembly, so that the patient cannot use the electric rehabilitation exercise bike for lower limb rehabilitation exercises. Therefore, it needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a leg muscle exercise device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A leg muscle exercise device includes a base. An exercise component for exercising the leg muscles of a patient is provided on the base. Installation grooves are respectively opened on the lower end surface of the base near the four corners. Installation boxes are respectively provided in the installation grooves. An installation cavity with a downward opening is provided in each installation box. Opposite support plates are further provided on the lower end surface of the base. Support rods that are opposite and one end of which extends into the corresponding installation cavity to slide are respectively provided on the support plates. Opposite boxes are provided on the lower end surface of the base. Chambers are respectively provided in the boxes. A positioning component for positioning the support rods is provided in the chambers.

[0007] Preferably, a plurality of jacks are respectively provided on the side wall of the support rod along its height direction;

[0008] The positioning component includes sliding blocks that are relatively provided in the chambers. Plug rods are respectively provided on the side walls of the sliding blocks. Springs for pushing the two sliding blocks to approach each other are respectively sleeved on the plug rods. A driving member is further provided on the lower end surface of the base. The driving member is used to drive the two sliding blocks to move away from each other, and insert the plug rods on the sliding blocks into the corresponding jacks to realize the positioning of the sliding of the support rods.

[0009] Preferably, a first inclined surface is provided on one side wall of each sliding block;

[0010] The driving member includes a threaded rod disposed between the two boxes and rotatable, both ends of the threaded rod extend into the corresponding cavity, and threaded blocks are sleeved on the threaded rod located in the cavity. Second inclined surfaces that cooperate with the corresponding first inclined surfaces are provided on the opposite side walls of the threaded blocks. The rotation of the threaded rod is used to drive the threaded blocks to move, and the second inclined surfaces on the threaded blocks squeeze the first inclined surfaces to realize the mutual separation of the two sliding blocks. One end of the threaded rod extends outside the box, and a locking member for locking the rotation of the threaded rod is provided at the extended end of the threaded rod.

[0011] Preferably, locking holes are provided on one side wall of the box, and opposite card slots are provided along the length direction on the extended end of the threaded rod;

[0012] The locking member includes a locking plate sleeved on the threaded rod and slidable. A clamping block is provided on the locking plate and is clamped into the corresponding card slot. Locking blocks are provided at both ends of the locking plate, and the locking blocks are inserted into the corresponding locking holes to realize the positioning of the rotation of the threaded rod.

[0013] Preferably, a nut for abutting the locking plate against the box is sleeved on the extended end of the threaded rod.

[0014] Preferably, a handle with a U-shaped cross-section is provided on the positioning plate.

[0015] Preferably, limiting grooves are provided along the height direction on the opposite side walls of the support rod, and limiting blocks that are opposite and one end of which is clamped into the corresponding limiting grooves are provided at the opening of the installation cavity.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the position of the support rod after sliding is positioned by the positioning component, so that the base and the footrest can maintain the adjusted height. Compared with the existing ones, when the leg muscle exercise device is actually used, the footrest on the base can be adjusted in height according to the leg length of the patient, so that patients with different leg lengths can exercise the leg muscles through the footrest when sitting on the chair, and the practicality is better during actual use.

[0018] 2. In the present utility model, through the setting of the locking member, it can be avoided that the threaded rod rotates accidentally, resulting in the threaded block releasing the extrusion of the sliding block, so that the insertion rod on the sliding block slides out of the insertion hole, thereby affecting the actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a leg muscle exercise device in the present utility model.

[0020] Figure 2 This is a schematic diagram of the installation structure of the installation box and the box body under the base in the present utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the support plate and the support rod in the present utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the locking member in the present utility model.

[0023] Figure 5 This is a schematic cross-sectional view of the cavity in the present utility model.

[0024] Figure 6 This is an exploded view of the locking plate and the nut on the threaded rod in the present utility model.

[0025] The meanings of the reference numerals in the figure are as follows:

[0026] 100, base; 110, installation box; 120, support plate; 121, support rod; 130, rotating rod; 131, foot pedal;

[0027] 201, installation cavity; 202, limiting block; 210, box body; 211, insertion rod; 220, threaded rod;

[0028] 301, jack; 302, limiting groove;

[0029] 401, card slot; 410, locking plate; 420, nut; 430, handle;

[0030] 501, cavity; 510, sliding block; 511, first inclined surface; 520, spring; 530, threaded block; 531, second inclined surface;

[0031] 601, locking hole; 611, clamping block; 610, locking block. Specific embodiments

[0032] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present utility model and not for limiting it.

[0033] The following will further elaborate on this embodiment with reference to the attached Figures 1 - 6 drawings.

[0034] As Figure 1As shown in the figure, a leg muscle exercise device in this embodiment includes a base 100. An exercise component for exercising the leg muscles of a patient is provided on the base 100. Installation grooves are respectively formed on the lower end surface of the base 100 and near the four corners. Installation boxes 110 are respectively provided in the installation grooves. An installation cavity 201 with a downward opening is provided in each installation box 110. Opposite support plates 120 are further provided on the lower end surface of the base 100. Support rods 121 that are opposite and one end of which extends into the corresponding installation cavity 201 for sliding are respectively provided on the support plates 120. Opposite boxes 210 are provided on the lower end surface of the base 100. Chambers 501 are respectively provided in the boxes 210. A positioning component for positioning the support rods 121 is provided in the chambers 501.

[0035] In this embodiment, the exercise component is of an existing structure, which adopts the structure disclosed in the patent No. CN219721823U. It includes a reduction motor, a turntable provided in the base 100, and a rotating rod 130 that penetrates through both ends of the base 100 and can rotate. The rotating rod 130 is rotatably installed on the base 100 through a bearing seat. The rotating rod 130 is connected to the turntable. Bent portions are respectively formed at the extending ends of the rotating rod 130. Pedal plates 131 are respectively rotatably installed on the bent portions. When a patient sits on a chair, the patient's feet are respectively placed on the corresponding pedal plates 131. By the patient actively stepping on the pedal plates 131 with the feet, the leg muscles of the patient are exercised, that is, the lower limbs of the patient perform rehabilitation exercises. Of course, the reduction motor drives the turntable to rotate and drives the rotating rod 130 to rotate, and can also perform rehabilitation training on the leg muscles of the patient placed on the pedal plates 131.

[0036] Among them, the installation grooves are arranged along the height direction of the base 100. The installation boxes 110 are fixedly installed in the installation grooves. The support rods 121 are fixedly installed on the support plates 120. The support rods 121 are inserted into the corresponding installation cavities 201 to realize the support of the support plates 120 for the base 100. When a patient sits on a chair and the patient's feet cannot be placed on the corresponding pedal plates 131, the base 100 moves upward along the support rods 121, driving the pedal plates 131 on the rotating rod 130 to move upward, so that the pedal plates 131 can move upward to a suitable height, enabling the patient's feet to just be placed on the corresponding pedal plates 131. Then, the support rods 121 are positioned by the positioning component in the chamber 501, so that the base 100 and the pedal plates 131 can both maintain the adjusted height, so that patients sitting on the chair with different leg lengths can all exercise the leg muscles through the pedal plates 131.

[0037] Among them, the positioning component positions the position of the support rod 121 sliding in the installation cavity 201, so that the base 100 and the foot pedal 131 can maintain the adjusted height. Compared with the existing ones, when this leg muscle exercise device is actually used, the foot pedal 131 on the base 100 can be adjusted in height according to the leg length of the patient, so that patients with different leg lengths can all exercise the leg muscles through the foot pedal 131, and the practicability is better during actual use;

[0038] Among them, the box body 210 is fixedly installed on the lower end surface of the base 100 and located between the opposite installation boxes 110, realizing the installation of the positioning component on the base 100;

[0039] Among them, limiting grooves 302 are respectively formed on the opposite side walls of the support rod 121 along its height direction, and limiting blocks 202 which are opposite and one end of which is clamped into the corresponding limiting grooves 302 are fixedly installed at the opening of the installation cavity 201. By clamping one end of the limiting block 202 into the limiting groove 302, the sliding of the support rod 121 in the installation cavity 201 is more stable. At the same time, when the limiting block 202 abuts against the bottom wall of the limiting groove 302, it can prevent the support rod 121 from completely sliding out of the installation cavity 201, thus affecting the actual use of the support rod 121; among them, after the support rod 121 is inserted into the installation cavity 201, one end of the limiting block 202 is clamped into the corresponding limiting groove 302, and the other end is fixedly welded to the opening side wall of the installation cavity 201, thereby realizing the assembly of the two;

[0040] During actual use, the support plate 120 and the base 100 are arranged perpendicular to each other, so that the two support plates 120 can stably support the base 100.

[0041] Such as Figures 1 - 6 As shown, in this embodiment, a plurality of jacks 301 are respectively arranged on the side wall of the support rod 121 along its height direction;

[0042] The positioning component includes sliding blocks 510 relatively arranged in the cavity 501. Plug rods 211 are respectively arranged on the side walls of the sliding blocks 510. Springs 520 for pushing the two sliding blocks 510 to approach each other are sleeved on the plug rods 211. A driving member is further arranged on the lower end surface of the base 100, and the driving member is used to drive the two sliding blocks 510 to move away from each other. The plug rods 211 on the sliding blocks 510 are inserted into the corresponding jacks 301 to realize the positioning of the sliding of the support rod 121.

[0043] In this embodiment, through the settings of the jack 301, the sliding block 510, the insertion rod 211, the spring 520 and the driving member, the insertion rod 211 is fixedly installed on the sliding block 510. When the driving member drives the two sliding blocks 510 to move away from each other, the sliding block 510 drives the corresponding insertion rod 211 to move, so that one end of the insertion rod 211 penetrates through the box body 210 and is inserted into the corresponding jack 301, realizing the positioning of the position of the support rod 121 after sliding by the insertion rod 211;

[0044] Wherein, the spring 520 is sleeved on the corresponding insertion rod 211. One end of the spring 520 abuts against the side wall of the cavity 501, and the other end of the spring 520 abuts against the corresponding sliding block 510. When the driving member releases the driving of the sliding block 510, the spring 520 pushes the two sliding blocks 510 to approach each other, and the movement of the sliding block 510 drives the corresponding insertion rod 211 to slide out of the corresponding jack 301, thereby releasing the positioning of the sliding of the support rod 121;

[0045] In actual use, the side wall of the sliding block 510 is slidably attached to the side wall of the cavity 501, so that the sliding block 510 is more stable when moving, so that the insertion rod 211 can better insert into the corresponding jack 301 to position the sliding of the support rod 121.

[0046] As Figures 1 - 6 shown, in this embodiment, a first inclined surface 511 is provided on one side wall of the sliding block 510;

[0047] The driving member includes a threaded rod 220 that is rotatably arranged between the two box bodies 210. Both ends of the threaded rod 220 extend into the corresponding cavity 501. Threaded blocks 530 are threadedly sleeved on the threaded rod 220 located in the cavity 501. Second inclined surfaces 531 that cooperate with the corresponding first inclined surfaces 511 are provided on the opposite side walls of the threaded blocks 530. The rotation of the threaded rod 220 is used to drive the threaded blocks 530 to move. The second inclined surfaces 531 on the threaded blocks 530 squeeze the first inclined surfaces 511 to realize the mutual separation of the two sliding blocks 510. One end of the threaded rod 220 extends outside the box body 210, and a locking member for locking the rotation of the threaded rod 220 is provided at the extending end of the threaded rod 220.

[0048] In this embodiment, through the settings of the first inclined surface 511, the threaded rod 220, the threaded block 530, the second inclined surface 531 and the locking member, the threaded rod 220 is rotatably installed between the two box bodies 210 through a bearing seat, and the side wall of the threaded block 530 is slidably attached to the side wall of the cavity 501. When the threaded rod 220 rotates in a threaded manner, the threaded block 530 can move along the threaded rod 220. When the threaded block 530 moves, the second inclined surface 531 on the threaded block 530 presses against the first inclined surface 511 on the sliding block 510, thereby realizing the mutual separation of the two sliding blocks 510;

[0049] During its actual use, when the threaded rod 220 drives the threaded block 530 to press against the sliding block 510, it is necessary to position the rotation of the threaded rod 220 to prevent the threaded rod 220 from rotating by mistake, which may cause the threaded block 530 to release the pressure on the sliding block 510, resulting in the insertion rod 211 on the sliding block 510 sliding out of the insertion hole 301 and affecting the actual use.

[0050] As Figures 1 - 6 shown, in this embodiment, opposite locking holes 601 are provided on one side wall of the box body 210, and opposite card slots 401 are provided along the length direction on the extended end of the threaded rod 220;

[0051] The locking member includes a locking plate 410 sleeved on the threaded rod 220 and slidable. A clamping block 611 that is inserted into the corresponding card slot 401 is provided on the locking plate 410, and locking blocks 610 are provided at both ends of the locking plate 410. The locking blocks 610 are inserted into the corresponding locking holes 601 to realize the positioning of the rotation of the threaded rod 220.

[0052] In this embodiment, through the settings of the locking holes 601, the card slots 401, the clamping blocks 611, the locking plate 410 and the locking blocks 610, by fixedly installing the locking blocks 610 on the locking plate 410, when the locking blocks 610 on the locking plate 410 are inserted into the corresponding locking holes 601, the locking plate 410 cannot rotate. At this time, through the cooperation of the clamping blocks 611 and the card slots 401, the rotation of the threaded rod 220 is locked;

[0053] Among them, when the locking blocks 610 on the locking plate 410 are slid out of the locking holes 601, the locking of the threaded rod 220 is released. At this time, the rotation of the locking plate 410 can drive the threaded rod 220 to rotate;

[0054] Among them, a handle 430 with a U-shaped cross section is fixedly installed on the locking plate 410. The handle 430 is used to drive the locking plate 410 to move, and the locking blocks 610 on the locking plate 410 are slid out of the locking holes 601. At the same time, the handle 430 is convenient for driving the locking plate 410 to rotate, thus facilitating the actual use;

[0055] During actual use, a nut 420 for abutting the locking plate 410 against the box body 210 is threadedly sleeved on the protruding end of the threaded rod 220. The locking plate 410 is abutted tightly against the side wall of the box body 210 through the nut 420, preventing the locking plate 410 from sliding on the threaded rod 220, which may cause the locking block 610 on the locking plate 410 to slide out of the locking hole 601, thus affecting the locking of the threaded rod 220 by the locking plate 410. When it is necessary to release the abutment of the locking plate 410 against the box body 210, the nut 420 is rotated threadedly to move the nut 420 away from the locking plate 410, thereby releasing the abutment of the locking plate 410 against the box body 210.

[0056] Working principle: First, rotate the nut 420 to release the abutment of the locking plate 410 against the box body 210. Then, drive the locking block 610 on the locking plate 410 to slide out of the corresponding locking hole 601 through the handle 430. At this time, the locking of the threaded rod 220 is released. Then, drive the threaded rod 220 to rotate through the handle 430. The threaded rod 220 drives the threaded block 530 to move, relieving the extrusion of the threaded block 530 on the sliding block 510, so that the sliding block 510 drives the insertion rod 211 to slide out of the insertion hole 301. At this time, the base 100 can be driven to move upward, enabling the foot pedal 131 on the base 100 to move upward to an appropriate height. Then, drive the threaded rod 220 to rotate through the handle 430, causing the threaded block 530 to squeeze the sliding block 510, and insert the insertion rod 211 on the sliding block 510 into the corresponding insertion hole 301 to position the adjusted height of the base 100. Then, insert the locking block 610 on the locking plate 410 into the corresponding locking hole 601 and rotate the nut 420 to abut the locking plate 410 tightly against the side wall of the box body 210. Finally, the patient sits on the chair and places the patient's feet on the corresponding foot pedals 131 respectively. By stepping on the foot pedals 131 with the patient's feet, the muscles of the patient's legs can be exercised.

[0057] A strap (not shown in the figure) for binding the feet can also be installed on the foot pedal 131 in the present utility model. When in use, the feet can be bound to avoid the situation of stepping empty.

Claims

1. A leg muscle training device, characterized in that: The invention comprises a base (100), wherein the base (100) is provided with an exercise component for exercising the patient's leg muscles, wherein installation grooves are provided on the lower end surface of the base (100) and near four corners, wherein installation boxes (110) are provided in the installation grooves, wherein installation cavities (201) opening downward are provided in the installation boxes (110), wherein the lower end surface of the base (100) is provided with opposite support plates (120), wherein the support plates (120) are provided with opposite support rods (121) whose one end extends into the corresponding installation cavity (201) and slides, and wherein the lower end surface of the base (100) is provided with opposite box bodies (210), wherein the box bodies (210) are provided with cavities (501), wherein the cavities (501) are provided with positioning components for positioning the support rods (121).

2. A leg muscle training device according to claim 1, characterized in that: A plurality of insertion holes (301) are provided on the side wall of the support rod (121) along its height direction; The positioning assembly comprises a sliding block (510) relatively arranged in the cavity (501), a plug rod (211) is provided on the side wall of the sliding block (510), a spring (520) is sleeved on the plug rod (211) for pushing the two sliding blocks (510) closer to each other, and a driving member is also provided on the lower end surface of the base (100), the driving member is used to drive the two sliding blocks (510) away from each other, and the plug rod (211) on the sliding block (510) is inserted into the corresponding plug hole (301) to realize the sliding positioning of the support rod (121).

3. A leg muscle training device according to claim 2, characterized in that: A first inclined surface (511) is provided on one side wall of the sliding block (510); The driving member comprises a threaded rod (220) which is rotatably arranged between the two box bodies (210), both ends of the threaded rod (220) are extended into the corresponding cavity (501), a threaded block (530) is threadedly sleeved on the threaded rod (220) in the cavity (501), and a second inclined surface (531) matching the corresponding first inclined surface (511) is provided on the opposite side walls of the threaded block (530), the threaded rod (220) is rotated to drive the threaded block (530) to move, the second inclined surface (531) on the threaded block (530) presses the first inclined surface (511), so that the two sliding blocks (510) move away from each other, one end of the threaded rod (220) is extended out of the box body (210), and a locking member for locking the rotation of the threaded rod (220) is provided at the extended end of the threaded rod (220).

4. A leg muscle training device according to claim 3, characterized in that: A side wall of the box body (210) is provided with opposite locking holes (601), and the extended end of the threaded rod (220) is provided with opposite locking grooves (401) along its length direction; The locking member comprises a locking plate (410) which is sleeved on the threaded rod (220) and is slidable. The locking plate (410) is provided with a clamping block (611) which is clamped into a corresponding clamping groove (401). Locking blocks (610) are provided at both ends of the locking plate (410). The locking blocks (610) are inserted into corresponding locking holes (601) to realize the positioning of the rotation of the threaded rod (220).

5. A leg muscle training device according to claim 4, characterized in that: A nut (420) for abutting the locking plate (410) against the box body (210) is threadedly sleeved on the protruding end of the threaded rod (220).

6. A leg muscle training device according to claim 5, characterized in that: A handle (430) having a U-shaped cross section is provided on the positioning plate.

7. The leg muscle training device according to claim 1, characterized in that: Limiting grooves (302) are provided on the side walls opposite to the support rod (121) along the height direction thereof, and limiting blocks (202) are provided opposite to each other at the opening of the installation cavity (201) and one end of the limiting blocks is inserted into the corresponding limiting grooves (302).

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