Lumbar massage bath

Abstract

This utility model discloses a lumbar massage bathtub. The rear wall of the water storage chamber of the tub is an inclined backrest with a lower front and a higher rear. A forward-facing receiving groove is opened in the middle of the lower part of the backrest, and a lumbar massage nozzle is installed in the receiving groove. A water flow space is left between the rear edge of the lumbar massage nozzle and the rear wall of the receiving groove. In use, the user leans back against the tub backrest, supported by the backrest, presenting an inclined position with a lower front and a higher rear. Because the lumbar massage nozzle is inclined upwards and backwards, rather than perpendicular to the human body as in the prior art, and because a water flow space is left between the rear edge of the lumbar massage nozzle and the rear wall of the receiving groove, the water sprayed from the lumbar massage nozzle, upon contact with the lumbar spine, does not impact the skin of the lumbar spine perpendicularly, but rather flows upwards along the skin of the lumbar spine within the water flow space, generating a force along the skin's direction and producing a bottom-up massage effect.

Description

Technical Field

[0001] This utility model relates to the field of massage bathtub technology, specifically to a lumbar massage bathtub. Background Technology

[0002] A typical whirlpool bathtub includes a tub body with a water storage chamber. Massage jets are mounted on the walls of the water storage chamber. A water pump is installed on the tub body, with its inlet connected to the water storage chamber and its outlet connected to the massage jets. The massage jets are positioned vertically against the body, spraying water vertically onto the skin to apply localized pressure, creating a pressing-like massage effect. However, because the spray direction is essentially perpendicular to the skin's surface, it lacks the force that follows the skin's natural contours, thus failing to achieve a pushing-like massage effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lumbar massage bathtub that can realize a massage-style massage along the skin of the lumbar spine.

[0004] To solve the above-mentioned technical problems, the present invention provides a lumbar massage bathtub, which includes a tub body with a water storage cavity. The rear wall of the water storage cavity is an inclined backrest with a lower front and a higher rear, allowing the human body to lean back. A groove is opened in the middle of the lower part of the backrest, facing forward and aligned with the lumbar spine. A lumbar massage nozzle is installed in the groove to spray water upward and backward toward the groove to massage the lumbar spine. A water flow space is left between the rear edge of the lumbar massage nozzle and the rear wall of the groove, allowing the water sprayed upward and backward by the lumbar massage nozzle to flow upward along the lumbar spine.

[0005] Furthermore, the distance between the rear edge of the nozzle orifice and the rear wall of the receiving groove is greater than 4cm.

[0006] Furthermore, the receiving groove is wider at the front and narrower at the back, and there are multiple lumbar massage nozzles, with at least two lumbar massage nozzles arranged side by side.

[0007] Furthermore, there are three lumbar massage nozzles, with the first lumbar massage nozzle located at the rear, and the second and third lumbar massage nozzles located to the left and right front sides of the first lumbar massage nozzle, respectively.

[0008] Furthermore, the bottom wall of the receiving tank is an inclined wall that is higher in the front and lower in the back.

[0009] Furthermore, a water pump is provided, with the water inlet connected to the water storage chamber and the water outlet connected to the lumbar massage nozzle.

[0010] Furthermore, the receiving groove is narrower at the top and wider at the bottom, and the backrest is equipped with auxiliary massage nozzles located around the opening of the receiving groove.

[0011] Furthermore, the auxiliary massage nozzle is specifically a lumbar massage nozzle, which is directed forward and downward towards the side of the lumbar massage nozzle to spray water onto the side of the human waist.

[0012] Furthermore, the bottom rear wall of the water storage chamber is equipped with a hip massage nozzle that sprays water laterally toward the front of the backrest to massage the hip side of the human body.

[0013] Furthermore, the rear wall of the water storage chamber is specifically an arc-shaped inclined backrest that is lower in the front and higher in the back, and / or the rear wall of the water storage chamber is specifically an arc-shaped backrest with the left and right ends forward and the middle part backward.

[0014] When in use, the user leans back against the backrest of the cylinder, with their lower back tilted upwards and downwards, supported by the backrest. Because the lumbar massage nozzle is tilted upwards and backwards rather than perpendicular to the human body as in the previous technology, and because there is a water flow space between the rear edge of the lumbar massage nozzle and the rear wall of the receiving groove, the water sprayed from the lumbar massage nozzle does not impact the skin of the lumbar spine vertically after contacting the human lumbar spine. Instead, it flows upwards along the skin of the lumbar spine in the water flow space, generating a force along the direction of the skin and producing a bottom-up massage effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a bathtub, shown from a slightly forward angle.

[0016] Figure 2 This is a top view of the rear of the bathtub, mainly showing the rear wall of the water storage chamber, the receiving groove, and the nozzles.

[0017] Figure 3 yes Figure 2 The figure shows the AA cross-section, which mainly shows the receiving groove.

[0018] Figure 4 yes Figure 2 The BB cross-sectional view shows the accommodating groove area.

[0019] Figure 5 This is a connection diagram of the water pump, inlet pipe, various outlet pipes, and various nozzles.

[0020] Figure 6 This is a schematic diagram of a bathtub, shown from a slightly rearward angle. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments.

[0022] Lumbar massage bathtub Figure 1The device includes a cylinder body 1, which has a water storage chamber 11. The rear wall of the water storage chamber 11 is an arc-shaped inclined wall that is lower in the front and higher in the back, with the left and right ends forward and the middle part backward, serving as a backrest 111. When using the device, the user first pours an appropriate amount of water into the water storage chamber 11, then lies down in the water storage chamber 11 of the cylinder body 1, leans back against the backrest 111 with their back facing backward, and extends their legs forward to place them on the bottom wall 112 of the water storage chamber 11.

[0023] See Figure 1 and Figure 2 The bottom center of the backrest 111 has a recessed groove 12 that is narrower at the top and wider at the bottom, and wider at the front and narrower at the back. Figure 2 and Figure 3 The accommodating groove 12 has its opening 120 facing forward and upward. The bottom wall 121 of the accommodating groove 12 is an inclined wall, higher at the front and lower at the rear. Three lumbar massage nozzles 21, 22, and 23 are installed in the middle of this bottom wall 121, all inclined backward and upward. The first lumbar massage nozzle 21 is located at the rear of the bottom wall 121, while the second and third lumbar massage nozzles 22 and 23 are arranged laterally, located to the left and right front sides of the first lumbar massage nozzle 21, respectively. The layout of the three lumbar massage nozzles 21, 22, and 23 is compatible with the front-wide and rear-narrow accommodating groove 12, making efficient use of space and improving structural compactness. Because the bottom wall 121 of the accommodating groove 12 is an inclined wall, the accommodating groove 12 has sufficient installation depth, allowing the lumbar massage nozzles 21, 22, and 23 to be completely contained within the accommodating groove 12 after installation, without protruding outside. The rear end 1221 of the rear wall 122 of the receiving tank 12 faces forward and is directly opposite the nozzle of the first lumbar massage nozzle 21. An arc-shaped first water flow space 131 is left between the receiving tank 12 and the rear edge 211 of the first lumbar massage nozzle 21, and the distance L1 between the two is 5cm. See Figure 2 and Figure 4 The rear left rear part 1222 of the accommodating tank 12 faces forward and is directly opposite the nozzle of the second lumbar massage nozzle 22. An arc-shaped second water flow space 132 is left between it and the rear edge 221 of the second lumbar massage nozzle 22, with a distance L2 of 10cm between them. The rear right rear part 1223 of the accommodating tank 12 faces forward and is directly opposite the rear edge of the nozzle of the third lumbar massage nozzle 23. An arc-shaped third water flow space 133 is left between it and the rear edge of the third lumbar massage nozzle 23, with a distance (see...) Figure 4 L2) is 10cm. See Figure 1 , Figure 5 and Figure 6The bathtub is equipped with a water pump 31 located below the water storage chamber 11. Multiple heat dissipation holes 19 are opened on the tub body 1 to dissipate heat from the water pump 31. The power supply wire of the water pump 31 (not shown in the figure) passes through one of the heat dissipation holes 19 to the outside of the tub body 1 to connect to an external power source, or it runs down from the tub body 1 into the floor, is wired inside the floor, and then leads out to the outside to connect to an external power source. The water pump 31 has an inlet pipe 33 connected to its inlet end 331, which is connected to the front wall 113 of the water storage chamber 11. The inlet pipe 33 also has a filter screen 332 at its end 331 to filter impurities in the water. The water pump 31 has a main outlet pipe 34 connected to its outlet end. Three first branch outlet pipes 351 extend rearward from the main outlet pipe 34, and these three first branch outlet pipes 351 are respectively connected to three lumbar massage nozzles 21, 22, and 23.

[0024] See Figure 3 and Figure 5 When the user's lower back rests against the backrest 111, the lower back is supported by the backrest 111, presenting an inclined state with the front lower and the back higher. The user's lumbar spine 9 rests backward against the opening 120 of the receiving groove 12, in this state, the opening 120 of the receiving groove 12 is aligned with the lumbar spine 9. The water pump 31 draws water from the water storage chamber 11 through the water inlet pipe 33, and delivers the water to the three lumbar massage nozzles 21, 22, and 23 through the main water outlet pipe 34 and each first branch water outlet pipe 351. The lumbar massage nozzles 21, 22, and 23 spray water backward and upward towards the opening 120, spraying it onto the user's lumbar spine 9. See Figure 2 , Figure 3 and Figure 4 Because the lumbar massage nozzles 21, 22, and 23 are tilted upwards and backwards instead of being perpendicular to the human body as in the background technology, and because there are water flow spaces 131, 132, and 133 between the rear edges 211, 221, and 231 of the nozzles and the rear wall 122 of the receiving groove 12, the water sprayed from the lumbar massage nozzles 21, 22, and 23 does not impact the skin of the lumbar spine 9 vertically after contacting the human lumbar spine 9. Instead, it flows upwards along the skin of the lumbar spine 9 in the water flow spaces 131, 132, and 133, generating a force along the direction of the skin on the lumbar spine 9, producing a bottom-up massage effect, thereby effectively relieving lumbar fatigue.

[0025] See Figure 1 and Figure 3 Because the receiving trough 12 is narrower at the top and wider at the bottom, its opening 120 is narrower at the top and wider at the bottom. When the user's lumbar spine 9 is against the opening 120 of the receiving trough 12, the lower part of the opening 120 is not easily blocked by the user's lumbar spine 9, and can remain connected to the water storage chamber 11. The water sprayed into the receiving trough 12 can flow smoothly from the lower part of the opening 120 of the receiving trough 12 into the water storage chamber 11, and then be pumped again by the water pump 31 (see...). Figure 5 The water is then pumped out, achieving a continuous water cycle. See [link / reference]. Figure 1 and Figure 2 The lower part of the backrest 111 is equipped with two pairs of lumbar massage nozzles 41 and 42, one above the other. The upper pair of lumbar massage nozzles 41 are larger than the lower pair of lumbar massage nozzles 42. The two pairs of lumbar massage nozzles 41 and 42 are located around the opening 120 of the receiving groove 12, facing forward and downward, aligned with the sides of the nozzles of the lumbar massage nozzles 21, 22, and 23. The narrower design of the upper part of the receiving groove 120 reduces the area occupied by the backrest 111, effectively reducing the restrictions on the layout of the lumbar massage nozzles 41 and 42. See Figure 2 and Figure 5 The main outlet pipe 34 of the water pump 31 extends rearward to have two second branch outlet pipes 352 and two third branch outlet pipes 353. The two second branch outlet pipes 352 are respectively connected to a pair of upper waist massage nozzles 41, and the two third branch outlet pipes 353 are respectively connected to a pair of lower waist massage nozzles 42. The water pump 31 pumps water through the main outlet pipe 34 and the second branch outlet pipes 352 to the pair of upper waist massage nozzles 41, and through the main outlet pipe 34 and the third branch outlet pipes 353 to the pair of lower waist massage nozzles 42. The upper and lower pairs of waist massage nozzles 41 and 42 serve as auxiliary massage nozzles, spraying water onto the user's waist to massage the user's waist.

[0026] See Figure 1 and Figure 3 When using the device, the user adjusts their posture so that a segment of the lumbar spine (e.g., L4 segment) is positioned against the opening 120 of the receiving groove 12 to receive massage from the lumbar massage nozzles 21, 22, and 23. The user then further adjusts their posture so that the next segment (e.g., L5 segment) is positioned against the opening 120 of the receiving groove 12 to receive massage from the lumbar massage nozzles 21, 22, and 23. At this point, the L4 segment, which was originally positioned against the opening 120 of the receiving groove 12, moves upwards to above the opening 120, and the lumbar massage nozzles 41 and 42 massage the side of the L4 segment, avoiding repeated massage of the L4 segment and effectively preventing localized fatigue caused by repeatedly massaging a single segment.

[0027] See Figure 1 , Figure 2 and Figure 5A hip massage nozzle 51 is provided at the rear bottom of the side wall 114 of the water storage chamber 11, facing the front of the backrest 111. A fourth branch outlet pipe 354 extends rearward from the main outlet pipe 34 of the water pump 31 and connects to the hip massage nozzle 51. The water pump 31 pumps water through the main outlet pipe 34 and the fourth branch outlet pipe 354 to the hip massage nozzle 51, which sprays water towards the front of the backrest 111, onto the user's hips, providing a massage. This bathtub utilizes the hip massage nozzle 51 to massage the user's hips, effectively relieving tension in the hip muscles and relaxing the back muscles, thereby enhancing the overall massage effect of the lumbar massage nozzles 21, 22, 23 and the lumbar massage nozzles 41, 42.

[0028] See Figure 1 and Figure 2 Other embodiments may omit the first lumbar massage nozzle 21 and retain only the second and third lumbar massage nozzles 22 and 23, or omit the second and third lumbar massage nozzles 22 and 23 and retain only the first lumbar massage nozzle 21.

[0029] See Figure 3 In other embodiments, the bottom wall 121 of the receiving groove 12 can be changed to a horizontal wall.

[0030] See Figure 1 Other embodiments may omit the waist massage nozzles 41 and 42 and / or the hip massage nozzle 51.

[0031] See Figure 3 In other embodiments, the backrest 111 can be changed to a flat wall that is lower in the front and higher in the back.

[0032] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A lumbar massage bathtub, comprising a tub body with a water storage chamber, wherein the rear wall of the water storage chamber is an inclined backrest with a lower front and a higher rear for the human body to lean back against, characterized in that: The lower part of the backrest has a groove in the middle that faces forward and is aligned with the lumbar spine. A lumbar massage nozzle is installed in the groove to spray water upward and backward towards the groove to massage the lumbar spine. There is a water flow space between the rear edge of the lumbar massage nozzle and the rear wall of the groove so that the water sprayed upward and backward by the lumbar massage nozzle can flow upward along the lumbar spine.

2. The lumbar massage bathtub according to claim 1, characterized in that: The distance between the rear edge of the nozzle orifice and the rear wall of the receiving groove is greater than 4cm.

3. The lumbar massage bathtub according to claim 1, characterized in that: The receiving groove is wider at the front and narrower at the back, and there are multiple lumbar massage nozzles, with at least two lumbar massage nozzles arranged side by side.

4. The lumbar massage bathtub according to claim 3, characterized in that: There are three lumbar massage nozzles. The first lumbar massage nozzle is located at the rear, while the second and third lumbar massage nozzles are located to the left and right front sides of the first lumbar massage nozzle, respectively.

5. The lumbar massage bathtub according to claim 4, characterized in that: The bottom wall of the receiving tank is a sloping wall that is higher in the front and lower in the back.

6. The lumbar massage bathtub according to claim 1, characterized in that: It is equipped with a water pump, with the water inlet connected to the water storage chamber and the water outlet connected to the lumbar massage nozzle.

7. The lumbar massage bathtub according to claim 1, characterized in that: The accommodating groove is narrower at the top and wider at the bottom, and the backrest is equipped with auxiliary massage nozzles located around the opening of the accommodating groove.

8. The lumbar massage bathtub according to claim 7, characterized in that: The auxiliary massage nozzle is specifically a lumbar massage nozzle, which is aimed forward and downward at the side of the lumbar massage nozzle to spray water onto the side of the human waist.

9. The lumbar massage bathtub according to claim 1, characterized in that: The bottom rear wall of the water storage chamber is equipped with a hip massage nozzle that sprays water laterally toward the front of the backrest to massage the hip side of the human body.

10. The lumbar massage bathtub according to claim 1, characterized in that: The rear wall of the water storage chamber is specifically an arc-shaped inclined backrest that is lower in the front and higher in the back, and / or the rear wall of the water storage chamber is specifically an arc-shaped backrest with the left and right ends forward and the middle part backward.

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