Waist and back stretcher and use method thereof

By designing the curved bracket and lifting platform of the waist-back stretcher, the problem of existing waist-back stretching equipment requiring sit-ups is solved, and the efficient waist-back stretching effect with a simple structure is achieved.

CN120284654APending Publication Date: 2025-07-11FUJIAN DAWEI TECH CO LTD
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Patent Information

Application Number
CN202510446679.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

Existing waist-back stretching equipment usually uses a fixed curved frame, and users need to constantly sit ups to achieve the stretching effect, resulting in poor experience and unsatisfactory stretching effect.

Method used

A waist-back stretcher is designed, including a back plate, a handheld assembly, a headrest assembly and a curved bracket. The center of gravity position of the back plate is changed through the rolling of the curved bracket, and combined with the arcuate projection and lifting platform, the continuous stretching and massage of the waist-back are achieved.

Benefits of technology

It achieves simple structure, convenient use, small size, and can continuously lie on the instrument for waist and back stretching without frequent sitting up, which improves the user experience and stretching effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a waist and back stretcher and a using method thereof.The waist and back stretcher comprises a back plate, a handrail assembly is arranged on the lower side of the back plate, a headrest assembly is arranged on the upper side of the back plate, a backrest is arranged on the front face of the back plate, and an arc-shaped protrusion which protrudes upwards and is used for stretching the waist and the back of the human body is arranged on the backrest; an arc-shaped support protruding downwards is arranged on the back face of the back plate, and the gravity center position of the back plate is changed through rolling of the arc-shaped support so that different positions of the waist and the back can be stretched and massaged. The stretcher is simple in structure, convenient to use, small in overall size and small in occupied area, and compared with an existing stretcher which is complex in structure and large in size, the stretcher is simple in structure and more practical.
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Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, and particularly relates to a lumbar and back stretcher and its usage method. Background Art

[0002] A lumbar and back stretcher is a device used to assist users in stretching their lumbar and back. However, existing lumbar and back stretching devices usually adopt a fixed arc-shaped frame for users to lie on their backs and stretch. When in use, users need to continuously do sit-ups to achieve the stretching effect, resulting in a poor user experience and an unsatisfactory stretching effect.

[0003] In view of this, the inventor of this case conducted in-depth research on the above problems, and thus this case was born. Summary of the Invention

[0004] The first object of the present invention is to provide a lumbar and back stretcher with a simple structure, convenient use, small volume, and good stretching effect in view of the above deficiencies.

[0005] The first solution adopted by the present invention to solve the technical problem is: a lumbar and back stretcher, including a backboard. A hand support component is provided on the lower side of the backboard, a headrest component is provided on the upper side of the backboard, a backrest is provided on the front of the backboard, and an arc-shaped protrusion for stretching the lumbar and back of the human body is provided on the backrest. An arc-shaped bracket protruding downward is provided on the back of the backboard to change the center of gravity position of the backboard by rolling the arc-shaped bracket, thereby stretching and massaging different positions of the lumbar and back.

[0006] Further, in order to form a lifting platform for the upper half of the human body; the arc-shaped protrusion is located in the middle of the backrest. The backrest also has a lower platform for lifting the buttocks located below the arc-shaped protrusion and an upper platform for lifting the shoulders located above the arc-shaped protrusion. The length of the arc-shaped protrusion is greater than the lengths of the upper platform and the lower platform to ensure that the arc-shaped protrusion covers the entire back of the human body.

[0007] Further, in order to ensure that the backrest covers the entire upper half of the human body and fully stretches various parts of the lumbar and back of the human body; the length of the backrest is 0.35m - 0.5m to lift the upper half of the human body, the length of the arc-shaped protrusion is 0.2 - 0.3m, and the radius of the arc-shaped protrusion is 0.15m - 0.25m to adapt to the contour of the human back.

[0008] Further, in order to drive the backboard to swing on the ground to stretch and massage different positions of the user's lumbar and back and improve the structural strength of the arc-shaped bracket; the arc-shaped bracket includes two arc-shaped rods, the two arc-shaped rods are respectively provided on both sides of the backboard, and a connecting rod is provided between the two arc-shaped rods to improve the structural strength of the arc-shaped bracket.

[0009] Further, in order to expand the swing angle of the backboard and ensure that the center of gravity of the stretcher faces downward; the arc-shaped rod is of a semi-circular structure to ensure that the backboard rotates 180 degrees. The diameter of the arc-shaped rod is smaller than the length of the backboard. The arc-shaped rod includes an upper connection end connected to the upper side of the backboard and a lower connection end connected to the lower end face of the backboard, and the upper connection end is located above the arc-shaped protrusion.

[0010] Further, in order to ensure that the user lies flat on the stretcher steadily and prevent the user from falling off the stretcher, providing safety protection during the user's use process; the handrail assembly includes two symmetrically arranged handrails. Each handrail includes a support section for cooperating with the arc-shaped bracket to place the stretcher flat on the ground and a handrail section extending obliquely upward from the support section. A seat plate for installing the handrail is provided on the lower side of the backboard, and the two handrails are fixedly installed on the seat plate through bolts and nuts.

[0011] Further, in order to prevent the user's head from hitting the ground during the process of the backboard rotating to stretch the waist and back, and to adjust the height of the headrest assembly according to different users; the headrest assembly includes a mounting rod and a headrest. The lower end of the mounting rod is telescopically installed on the backboard, and the headrest is installed at the upper end of the mounting rod. A telescopic sleeve rod is provided on the upper side of the backboard, the lower end of the mounting rod is telescopically installed in the telescopic sleeve rod, a locking screw for locking the mounting rod in the telescopic sleeve rod is provided on the telescopic sleeve rod, and a plurality of locking holes for inserting the locking screw are provided on the mounting rod along the telescopic direction of the mounting rod.

[0012] Further, in order to prevent the mounting rod from being deformed due to frequent contact with the ground; the mounting rod includes a telescopic section telescopically connected to the telescopic sleeve rod and a contact section for contacting the ground. A plurality of locking holes are provided in the telescopic section, and the contact section extends obliquely upward from the upper end of the telescopic section to ensure that the contact section is flush with the ground when the arc-shaped bracket rotates to the maximum angle.

[0013] Further, in order to facilitate the user to use the lumbar and back stretcher; the lumbar and back stretcher further includes a cushion movably placed in front of the lower side of the backboard, and the cushion is filled with sponge.

[0014] The second object of the present invention is to address the above deficiencies and provide a method for using a lumbar and back stretcher that is convenient, labor-saving, and can effectively stretch the lumbar and back.

[0015] The second solution adopted by the present invention to solve the technical problem is: A method for using a lumbar and back stretcher, comprising the following steps:

[0016] (1) Before using the lumbar and back stretcher, the user places the cushion in front of the lower side of the backboard, sits on the cushion, holds the handrails with both hands, and presses the lumbar and back tightly against the backrest;

[0017] (2) Then, the user exerts force through the waist, back, and feet to drive the backboard to roll back and forth along the arc-shaped bracket, thereby changing the contact part between the user's waist, back, and the backrest, so as to achieve the purpose of changing the stretching position of the waist and back.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) The present invention has a simple structure and is easy to use. The overall volume of the instrument is small and it occupies less floor space. Compared with the existing stretcher with a complex and large volume, the simple structure of the present invention is more practical. Specifically, the arc-shaped protrusion fits the contour of the human waist and back, and can achieve a better stretching effect. The setting of the hand-held component and the headrest component effectively ensures the safety and comfort during use;

[0020] (2) The existing stretcher usually has a fixed arc-shaped frame structure. When the user stretches, by lying on the arc-shaped frame to stretch the waist and back, after completing one stretch, the user needs to sit up and then lie down again to perform the second stretch. Different from the stretching method of the existing stretcher, when stretching, the user can continuously lie on the stretcher without sitting up. When stretching, by exerting force with the feet and back, the backboard is driven to swing back and forth along the arc-shaped bracket to change its center of gravity position, so as to achieve the purpose of stretching and massaging different parts of the waist and back, and can give the user a better use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings in conjunction with embodiments:

[0022] Figure 1 is a schematic structure of the present invention Figure 1 ;

[0023] Figure 2 is a schematic structure of the present invention Figure 2 ;

[0024] Figure 3 is a schematic structure of the present invention Figure 3 ;

[0025] Figure 4 is a schematic diagram of the state when the headrest component touches the ground;

[0026] Figure 5 is a schematic diagram of the state of the present invention before stretching;

[0027] Figure 6 is a schematic diagram of the state of the present invention during the stretching process.

[0028] In the figure: backboard 1; telescopic sleeve rod 101; seat board 102; backrest 2; arc-shaped protrusion 201; lower platform 202; upper platform 203; arc-shaped bracket 3; arc-shaped rod 301; connecting rod 302; handrail 4; supporting section 401; hand-holding section 402; cushion 5; mounting rod 6; telescopic section 601; contact section 602; headrest 7; locking screw 8. Detailed implementation manners

[0029] The following is a detailed description of the content of the present invention in conjunction with the specification drawings and specific embodiments:

[0030] Embodiment 1: As Figures 1-6 shown, this embodiment provides a lumbar and back stretcher, including a backboard 1. A handrail assembly is provided on the lower side of the backboard 1, a headrest assembly is provided on the upper side of the backboard 1, a backrest 2 is provided on the front surface of the backboard 1, and an arc-shaped protrusion 201 for stretching the human lumbar and back is provided on the backrest 2. An arc-shaped bracket 3 protruding downward is provided on the back surface of the backboard 1 to change the center of gravity position of the backboard 1 by rolling of the arc-shaped bracket 3 so as to stretch and massage different positions of the lumbar and back.

[0031] In this embodiment, in order to form a lifting platform for the upper half of the human body; the arc-shaped protrusion 201 is located in the middle of the backrest 2. A lower platform 202 for lifting the buttocks and an upper platform 203 for lifting the shoulders are further provided on the backrest 2 below and above the arc-shaped protrusion 201 respectively. The length of the arc-shaped protrusion 201 is greater than the lengths of the upper platform 203 and the lower platform 202 to ensure that the arc-shaped protrusion 201 covers the entire back of the human body.

[0032] In this embodiment, in order to ensure that the backrest 2 covers the entire upper half of the human body and fully stretch various parts of the human lumbar and back; the length of the backrest 2 is 0.35 m - 0.5 m to lift the upper half of the human body, the length of the arc-shaped protrusion 201 is 0.2 - 0.3 m, and the radius of the arc-shaped protrusion 201 is 0.15 m - 0.25 m to adapt to the contour of the human back.

[0033] In this embodiment, in order to drive the backboard 1 to swing on the ground to stretch and massage different positions of the user's lumbar and back and improve the structural strength of the arc-shaped bracket 3; the arc-shaped bracket 3 includes two arc-shaped rods 301. The two arc-shaped rods 301 are respectively arranged on both sides of the backboard 1, and a connecting rod 302 is arranged between the two arc-shaped rods 301 to improve the structural strength of the arc-shaped bracket 3.

[0034] In this embodiment, in order to expand the swing angle of the backboard 1 and ensure that the center of gravity of the stretcher is downward; the arc-shaped rod 301 is of a semi-circular structure to ensure that the backboard 1 rotates 180 degrees. The diameter of the arc-shaped rod 301 is smaller than the length of the backboard 1. The arc-shaped rod 301 includes an upper connection end connected to the upper side of the backboard 1 and a lower connection end connected to the lower end surface of the backboard 1, and the upper connection end is located above the arc-shaped protrusion 201.

[0035] In this embodiment, in order to ensure that the user lies flat on the stretcher smoothly and prevent the user from falling off the stretcher, providing safety protection during the user's use process; the handrail assembly includes two symmetrically arranged handrail rods 4. The handrail rod 4 includes a support section 401 for cooperating with the arc-shaped bracket 3 to place the stretcher flat on the ground and a handrail section 402 extending obliquely upward from the support section 401. The included angle between the support section 401 and the handrail section 402 is 90 degrees. A seat plate 102 for installing the handrail rod 4 is provided on the lower side of the backboard 1. The two handrail rods 4 are fixedly installed on the seat plate 102 through bolts and nuts.

[0036] In this embodiment, in order to prevent the user's head from hitting the ground during the rotation of the backboard 1 to stretch the waist and back, and to adjust the height of the headrest assembly according to different users; the headrest assembly includes a mounting rod 6 and a headrest 7. The lower end of the mounting rod 6 is telescopically installed on the backboard 1. The headrest 7 is installed at the upper end of the mounting rod 6. A telescopic sleeve rod 101 is provided on the upper side of the backboard 1. The lower end of the mounting rod 6 is telescopically installed in the telescopic sleeve rod 101. A locking screw 8 for locking the mounting rod 6 in the telescopic sleeve rod 101 is provided on the telescopic sleeve rod 101. A plurality of locking holes for inserting the locking screw 8 are provided on the mounting rod 6 along the telescopic direction of the mounting rod 6.

[0037] In this embodiment, in order to prevent the mounting rod 6 from being deformed due to frequent contact with the ground; the mounting rod 6 includes a telescopic section 601 that is telescopically connected to the telescopic sleeve rod 101 and a contact section 602 for contacting the ground. A plurality of locking holes are provided in the telescopic section 601. The contact section 602 extends obliquely upward from the upper end of the telescopic end to ensure that the contact section 602 is flush with the ground when the arc-shaped bracket 3 rotates to the maximum angle.

[0038] In this embodiment, in order to facilitate the user to use the waist and back stretcher; the waist and back stretcher further includes a cushion 5 that is movably placed in front of the lower side of the backboard 1. The cushion 5 is filled with sponge.

[0039] Embodiment 2: A method for using a waist and back stretcher, including the following steps:

[0040] (1) Before using the waist and back stretcher, the user places the cushion in front of the lower side of the backboard 1, sits on the cushion 5, holds the handrail rods 4 with both hands, and presses the waist and back tightly against the backrest 2;

[0041] (2) Then, the user exerts force through the waist, back and feet to drive the back plate 1 to roll back and forth along the arc-shaped bracket 3, thereby changing the contact position between the user's waist and back and the backrest 2, so as to achieve the purpose of changing the stretching position of the waist and back.

[0042] The structure of the present invention is simple and convenient to use. The overall volume of the device is small and it occupies less floor space. Compared with the existing stretcher with a complex and large structure, the simple structure of the present invention is more practical. Specifically, the arc-shaped protrusion 201 fits the contour of the human waist and back, and a good stretching effect can be achieved. The setting of the hand-held component and the headrest component effectively ensures the safety and comfort during use.

[0043] The existing stretcher is usually a fixed arc-shaped frame structure. When the user stretches, he lies on the arc-shaped frame to stretch the waist and back. After one stretch, he needs to sit up and then lie down again to perform the second stretch. Different from the stretching method of the existing stretcher, when stretching, the user can continuously lie on the stretcher without sitting up. When stretching, the user exerts force through the feet and back to drive the back plate 1 to swing back and forth along the arc-shaped bracket 3 to change its center of gravity position, so as to achieve the purpose of stretching and massaging different parts of the waist and back, and can give the user a better use experience.

[0044] The above are only the embodiments of the present invention, and do not limit the patent protection scope of the invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A lumbar and back stretcher, characterized in that: It includes a backboard. A handrail assembly is provided on the lower side of the backboard, a headrest assembly is provided on the upper side of the backboard, a backrest is provided on the front side of the backboard. An arc-shaped protrusion for stretching the human waist and back is provided on the backrest. An arc-shaped bracket protruding downward is provided on the back side of the backboard to change the center of gravity position of the backboard by rolling the arc-shaped bracket so as to stretch and massage different positions of the waist and back.

2. The lumbar and back stretcher according to claim 1, characterized in that: The arc-shaped protrusion is located in the middle of the backrest. A lower platform for supporting the buttocks and an upper platform for supporting the shoulders are also provided on the backrest below and above the arc-shaped protrusion respectively. The length of the arc-shaped protrusion is greater than the lengths of the upper platform and the lower platform to ensure that the arc-shaped protrusion covers the entire back of the human body.

3. The lumbar and back stretcher according to claim 1, characterized in that: The length of the backrest is 0.35m - 0.5m to support the upper half of the human body. The length of the arc-shaped protrusion is 0.2 - 0.3m, and the radius of the arc-shaped protrusion is 0.15m - 0.25m to adapt to the contour of the human back.

4. The lumbar and back stretcher according to claim 1, characterized in that: The arc-shaped bracket includes two arc-shaped rods. The two arc-shaped rods are respectively provided on both sides of the backboard, and a connecting rod is provided between the two arc-shaped rods to improve the structural strength of the arc-shaped bracket.

5. The lumbar and back stretcher according to claim 4, characterized in that: The arc-shaped rod is of a semi-circular structure to ensure that the backboard can be rotated 180 degrees. The diameter of the arc-shaped rod is smaller than the length of the backboard. The arc-shaped rod includes an upper connection end connected to the upper side of the backboard and a lower connection end connected to the lower end face of the backboard, and the upper connection end is located above the arc-shaped protrusion.

6. The lumbar stretcher according to claim 1, characterized in that: The handrail assembly includes two symmetrically arranged handrails. Each handrail includes a support section for cooperating with the arc-shaped bracket to place the stretcher flat on the ground and a handrail section extending obliquely upward from the support section. A seat plate for installing the handrails is provided on the lower side of the backboard. The two handrails are fixedly installed on the seat plate by bolts and nuts.

7. The lumbar and back stretcher according to claim 1, characterized in that: The headrest assembly includes a mounting rod and a headrest. The lower end of the mounting rod is telescopically installed on the backboard, and the headrest is installed at the upper end of the mounting rod. A telescopic sleeve rod is provided on the upper side of the backboard. The lower end of the mounting rod is telescopically installed in the telescopic sleeve rod. A locking screw for locking the mounting rod in the telescopic sleeve rod is provided on the telescopic sleeve rod. A number of locking holes for inserting the locking screw are provided on the mounting rod along the telescopic direction of the mounting rod.

8. The lumbar and back stretcher according to claim 7, characterized in that: The mounting rod includes a telescopic section telescopically connected to the telescopic sleeve rod and a contact section for contacting the ground. A number of locking holes are provided on the telescopic section. The contact section extends obliquely upward from the upper end of the telescopic end to ensure that the contact section is flush with the ground when the arc-shaped bracket rotates to the maximum angle.

9. The lumbar stretcher according to claim 1, wherein: The waist and back stretcher further includes a cushion movably placed in front of the lower side of the backboard, and the cushion is filled with sponge.

10. A method for using a lumbar and back stretcher according to any one of claims 1-9, characterized in that: It includes the following steps: (1) Before using the waist and back stretcher, the user places the cushion in front of the lower side of the backboard, sits on the cushion, holds the handrails with both hands, and presses the waist and back tightly against the backrest. (2) Then, the user exerts force with the waist and back and both feet to drive the backboard to roll back and forth along the arc-shaped bracket, thereby changing the contact position between the user's waist and back and the backrest to achieve the purpose of changing the waist and back stretching position.