阅读说明：本技术 一种按摩椅腿部伸缩机构 (Leg telescoping mechanism of massage chair ) 是由 吴景华 聂金双 陈锐金 刘星 于 2019-10-14 设计创作，主要内容包括：本发明实施例公开一种按摩椅腿部伸缩机构,涉及按摩设备领域,包括脚底支撑架、多个导向管套组件、多根压缩弹簧和多根中心管,多根中心管的一端分别与脚底支撑架连接,多根中心管的另一端一一对应地插入于多个导向管套组件的一端,每根中心管另一端的端部分别套设有上轴套,多根压缩弹簧一一对应地套设于多根中心管的外周,压缩弹簧的一端与上轴套相抵靠,压缩弹簧的另一端与下轴套相抵靠。通过使用无挂钩的压缩弹簧,避免挂钩变形并疲劳折断,并节省了挂钩所占用的空间,相应增加了弹簧的有效行程,通过将压缩弹簧置于伸缩导向机构内部,无需将弹簧外置,进一步节省空间,并且运行稳定、行程大且省力、制造成本低、使用寿命更长。(The embodiment of the invention discloses a leg stretching mechanism of a massage chair, which relates to the field of massage equipment and comprises a sole support frame, a plurality of guide pipe sleeve assemblies, a plurality of compression springs and a plurality of central pipes, wherein one ends of the central pipes are respectively connected with the sole support frame, the other ends of the central pipes are inserted into one ends of the guide pipe sleeve assemblies in a one-to-one correspondence manner, the end part of the other end of each central pipe is respectively sleeved with an upper shaft sleeve, the compression springs are sleeved on the peripheries of the central pipes in a one-to-one correspondence manner, one ends of the compression springs are abutted against the upper shaft sleeves, and the other ends of the compression. Through using the compression spring that does not have the couple, avoid couple deformation and fatigue rupture to saved the shared space of couple, correspondingly increased the effective stroke of spring, through arranging compression spring in flexible guiding mechanism inside, need not to arrange the spring externally, further save space, and the operation is stable, the stroke is big and laborsaving, low in manufacturing cost, life are longer.)

1. The utility model provides a massage chair leg telescopic machanism, its characterized in that, massage chair leg telescopic machanism includes sole support frame, a plurality of direction pipe box subassembly, many compression spring and many center tubes, direction pipe box subassembly is tubular structure, every the inside of direction pipe box subassembly one end is provided with down the axle sleeve, many the one end of center tube respectively with the sole support frame is connected, many the other end one-to-one of center tube inserts in a plurality of the one end of direction pipe box subassembly, every the tip of the center tube other end is overlapped respectively and is equipped with the axle sleeve, many compression spring overlaps with the one-to-one and locates many the periphery of center tube, compression spring's one end with go up the axle sleeve and support mutually and lean on, compression spring's the other end with the axle sleeve counterbalance is leaned on.

2. The chair leg extension mechanism of claim 1, wherein said guide sleeve assembly comprises two slotted cover plates that snap together and are bolted together.

3. The leg stretching mechanism of a massage chair as claimed in claim 2, wherein the upper shaft sleeve comprises two arc-shaped pressing pieces, the other end of the central tube is provided with two through holes, one side of each of the two arc-shaped pressing pieces close to the central tube is provided with a protrusion, the two arc-shaped pressing pieces are symmetrically buckled on the periphery of the other end of the central tube, the protrusions are correspondingly inserted into the through holes, and the two arc-shaped pressing pieces are fastened and connected by bolts.

4. A massage chair leg retraction mechanism according to claim 1, 2 or 3, wherein the massage chair leg retraction mechanism comprises two of the centre tubes and two of the guide sleeve assemblies, the two guide sleeve assemblies being spaced apart.

5. The leg stretching mechanism for a massage chair as claimed in claim 4, further comprising a first connecting cross tube and two metal supporting bushings, wherein the two metal supporting bushings are sleeved on one end of the two central tubes in a one-to-one correspondence manner, and the two ends of the first connecting cross tube are connected with the two metal supporting bushings in a one-to-one correspondence manner.

6. The leg stretching mechanism for the massage chair as claimed in claim 5, wherein one end of each of the two central tubes is sleeved with a rubber pad, and the rubber pads are located on the side of the first connecting horizontal tube away from the sole support frame.

7. The leg stretching mechanism for massage chair as claimed in claim 6, wherein the upper surface of said sole support frame is provided with a plurality of reinforcing pieces connected to said metal support bush.

8. The leg stretching mechanism for a massage chair as claimed in claim 7, further comprising a second connecting cross tube and a connecting baffle, wherein two ends of the first connecting cross tube are connected with the two guiding tube sleeve assemblies in a one-to-one correspondence, two ends of the connecting baffle are connected with the two guiding tube sleeve assemblies in a one-to-one correspondence, and the second connecting cross tube is located between the connecting baffle and the first connecting cross tube.

9. The leg stretching mechanism of massage chair as claimed in claim 1, 2 or 3, wherein the other ends of the plurality of guide tube housing assemblies are provided with a connecting lug.

Technical Field

The embodiment of the invention relates to the field of massage equipment, in particular to a leg stretching mechanism of a massage chair.

Background

In the massage chair on the market at present, a shank telescoping mechanism is generally mechanical, a shank sliding guide rail and an extension spring are arranged inside a mechanical shank, the length of the shank telescoping mechanism depends on the acting force of feet on the shank telescoping mechanism, the larger the telescoping length is, the larger the resilience stress of the feet is, and people feel uncomfortable when sitting on the massage chair to massage; moreover, the use of extension springs has the following disadvantages: 1. the hooks at the two ends of the extension spring are easy to deform and break due to fatigue; 2. the hooks at the two ends of the extension spring need a lot of space for fixing, so that the space occupied by the shank extension mechanism is increased, and the travel space of the extension spring is sacrificed to a certain extent by the hooks; 3. the existing shank telescopic machine arranges the extension spring outside the telescopic guide mechanism, and the extension spring occupies space independently, so that the space occupied by the shank telescopic mechanism is further increased.

Disclosure of Invention

Therefore, the embodiment of the invention provides a leg stretching mechanism of a massage chair, which aims to solve the problems of poor comfort, large occupied space, high possibility of damage and short service life of the existing leg stretching mechanism.

In order to achieve the above object, an embodiment of the present invention provides a leg stretching mechanism of a massage chair, where the leg stretching mechanism of the massage chair includes a sole support frame, a plurality of guide pipe sleeve assemblies, a plurality of compression springs, and a plurality of center pipes, each guide pipe sleeve assembly is of a tubular structure, a lower shaft sleeve is disposed inside one end of each guide pipe sleeve assembly, one end of each center pipe is connected to the sole support frame, the other end of each center pipe is inserted into one end of each guide pipe sleeve assembly in a one-to-one correspondence manner, an upper shaft sleeve is sleeved on an end of the other end of each center pipe, the plurality of compression springs are sleeved on peripheries of the plurality of center pipes in a one-to-one correspondence manner, one end of each compression spring abuts against the upper shaft sleeve, and the other end of each compression spring abuts against.

Further, the guide pipe sleeve assembly comprises two groove-shaped cover plates, and the two groove-shaped cover plates are buckled and connected through bolts.

Further, go up the axle sleeve and include two arc preforming, the other end of center tube is provided with two through-holes, two one side that the arc preforming is close to the center tube is provided with the arch respectively, two arc preforming symmetry lock is in the periphery of the center tube other end, the arch inserts in the through-hole correspondingly, two the arc preforming uses bolt fastening to connect.

Furthermore, the leg stretching mechanism of the massage chair comprises two central tubes and two guide pipe sleeve assemblies, and the two guide pipe sleeve assemblies are arranged at intervals.

Furthermore, the leg stretching mechanism of the massage chair further comprises a first connecting transverse pipe and two metal supporting bushings, the two metal supporting bushings are sleeved at one end of the two central pipes in a one-to-one correspondence mode, and two ends of the first connecting transverse pipe are connected with the two metal supporting bushings in a one-to-one correspondence mode.

Furthermore, one end of each of the two central tubes is sleeved with a rubber pad, and the rubber pads are located on one side, far away from the sole supporting frame, of the first connecting transverse tube.

Furthermore, a plurality of reinforcing sheets connected with the metal supporting bush are arranged on the upper surface of the sole supporting frame.

Furthermore, the leg stretching mechanism of the massage chair further comprises a second connecting transverse pipe and connecting baffle plates, two ends of the first connecting transverse pipe are connected with the two guide pipe sleeve assemblies in a one-to-one correspondence mode, two ends of the connecting baffle plates are connected with the two guide pipe sleeve assemblies in a one-to-one correspondence mode, and the second connecting transverse pipe is located between the connecting baffle plates and the first connecting transverse pipe.

Furthermore, a plurality of connecting lugs are arranged at the other ends of the guide pipe sleeve assemblies.

The embodiment of the invention has the following advantages: according to the embodiment of the invention, the compression spring without the hook is used, so that the deformation and fatigue breakage of the hook are avoided, the space occupied by the hook is saved, the effective stroke of the spring is correspondingly increased, the compression spring is arranged in the telescopic guide mechanism (in the guide pipe sleeve component), the spring does not need to be arranged externally, the space is further saved, the operation is stable, the stroke is large, the labor is saved, the manufacturing cost is low, and the service life is long.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic cross-sectional view of a leg stretching mechanism of a massage chair in a shortened state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure at B in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a leg stretching mechanism of a massage chair according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the enlarged structure at A in FIG. 3;

fig. 5 is a schematic perspective view of a leg stretching mechanism of a massage chair according to an embodiment of the present invention;

FIG. 6 is an exploded view of the leg stretching mechanism of the massage chair according to the embodiment of the present invention;

fig. 7 is a schematic view of a connection relationship between the upper bushing, the central tube and the lower bushing according to the embodiment of the present invention.

FIG. 8 is a schematic structural diagram of a conventional extension spring according to an embodiment of the present invention;

description of reference numerals: 10. a sole support frame; 20. a guide sleeve assembly; 21. a lower shaft sleeve; 22. a trough-shaped cover plate; 23. arc-shaped pressing sheets; 24. an upper shaft sleeve; 25. a rubber pad; 26. a reinforcing sheet; 27. connecting a hanging lug; 28. positioning the boss; 29. positioning holes; 30. a compression spring; 40. a central tube; 50. a first connecting horizontal pipe; 60. a metal support bushing; 70. a second connecting horizontal pipe; 80. and connecting the blocking piece.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 5, the leg stretching mechanism of the massage chair includes a sole support frame 10, a plurality of guide shoe assemblies 20, a plurality of compression springs 30, and a plurality of center tubes 40, and the number of the guide shoe assemblies 20, the compression springs 30, and the center tubes 40 is two in the present embodiment, but the number is not limited thereto. The sole support frame 10 is a rectangular plate-shaped structure, a hollow part is arranged in the middle of the sole support frame, and the sole support frame 10 is used for bearing feet of a user in a massage process.

As shown in fig. 6, the two guide pipe sleeve assemblies 20 are arranged at intervals, the guide pipe sleeve assembly 20 is a tubular structure, the guide pipe sleeve assembly 20 includes two groove-shaped cover plates 22, the groove-shaped cover plates 22 are formed by punching with a punching device, through holes for installing bolts are respectively provided at edges of two long sides of the groove-shaped cover plates 22, and the two groove-shaped cover plates 22 are fastened and connected by using bolts. Further, in order to facilitate the installation of the guide pipe sleeve assembly 20, a positioning boss 28 is disposed at an edge of one of the groove-shaped cover plates 22, the positioning boss 28 is formed by stamping the groove-shaped cover plate 22, a positioning hole 29 corresponding to the positioning boss 28 is disposed at an edge of the other groove-shaped cover plate 22, and the concentricity of the two groove-shaped cover plates 22 can be ensured by the positioning boss 28 fitting with the positioning hole 29 during installation. The inside of every guide pipe box subassembly 20 one end is provided with lower axle sleeve 21, lower axle sleeve 21 is the round axle sleeve, lower axle sleeve 21 is used for playing limiting displacement to compression spring 30, for convenient installation, the one end punching press recess respectively of two cell type apron 22, the recess is located the relative one side of two cell type apron 22, when two cell type apron 22 buckles, lower axle sleeve 21 card is located in the recess, the internal surface of lower axle sleeve 21 is provided with many oil storage tanks that extend along the axis of center tube 40, the oil storage tank can be used for storing lubricating oil and lubricate center tube 40.

As shown in fig. 8, 2, 3, 4, and 7, the central tube 40 has a tubular structure, one end of each of the two central tubes 40 is connected to the sole support frame 10, the other end of each of the two central tubes 40 is inserted into one end of each of the two guide tube sleeve assemblies 20, the end of the other end of each of the central tubes 40 is sleeved with the upper shaft sleeve 24, the two compression springs 30 are sleeved around the peripheries of the central tubes 40, one end of each of the compression springs 30 abuts against the upper shaft sleeve 24, and the other end of each of the compression springs 30 abuts against the lower shaft sleeve 21. When the foot applies a force to the sole supporter 10, the compression spring 30 is further compressed and the central tube 40 is extended from the guide tube housing assembly 20, and when the foot applies a force to the sole supporter 10 less than the elastic force of the compression spring 30 or no force is applied, the compression spring 30 is extended and the central tube 40 is retracted into the guide tube housing assembly 20. As shown in fig. 8, by using the compression spring 30 without the hook, the deformation and fatigue fracture of the hook are avoided, the space occupied by the hook is saved, the effective stroke of the spring is correspondingly increased, the compression spring 30 is arranged inside the telescopic guide mechanism (inside the guide pipe sleeve component 20), no external arrangement is needed, the space is further saved, and the device has the advantages of stable operation, large stroke, labor saving, low manufacturing cost and longer service life.

Go up axle sleeve 24 and be used for playing limiting displacement to compression spring 30, go up axle sleeve 24 and include two arc preforming 23, be provided with the bolt hole in the arch, the other end of center tube 40 is provided with two through-holes, two arc preforming 23 symmetry locks in the tip of the center tube 40 other end, one side that two arc preforming 23 are close to center tube 40 is provided with the arch of radial inward extension respectively, the other end symmetry of center tube 40 is provided with two through-holes, the through-hole can supply two arc preforming 23's protruding to insert, during the installation, through to the downthehole bolt that twists of bolt, can be fixed in the tip of the center tube 40 other end with two. In order to lubricate the telescopic mechanism, a plurality of oil storage grooves extending along the axis of the central tube 40 are arranged on one sides of the two arc-shaped pressing sheets 23 far away from the central tube 40.

Further, in order to enhance the connection between the two guide pipe sleeve assemblies 20, the leg stretching mechanism of the massage chair further comprises a first connecting horizontal pipe 50, two metal supporting bushings 60, a second connecting horizontal pipe 70 and a connecting baffle 80, wherein the two metal supporting bushings 60 are sleeved at one end of the two central pipes 40 in a one-to-one correspondence manner, and the two ends of the first connecting horizontal pipe 50 are connected with the two metal supporting bushings 60 in a one-to-one correspondence manner. The two ends of the first cross connecting pipe 50 are connected to the two guide pipe sleeve assemblies 20 in a one-to-one correspondence, the two ends of the connecting baffle 80 are connected to the two guide pipe sleeve assemblies 20 in a one-to-one correspondence, and the second cross connecting pipe 70 is located between the connecting baffle 80 and the first cross connecting pipe 50. The connection between the two guide pipe sleeve assemblies 20 is strengthened by the first connecting transverse pipe 50, the second connecting transverse pipe 70 and the connecting baffle 80, the structural strength of the telescopic mechanism is effectively improved, and the second connecting transverse pipe 70 can be used as a supporting point of a leg pushing and lifting roller besides being used for connecting the guide pipe sleeve assemblies 20.

Further, one end of each of the two central tubes 40 is sleeved with a rubber pad 25, and the rubber pads 25 are located on the side of the first connecting transverse tube 50 away from the sole support frame 10. The rubber pads 25 may be used to reduce the impact between the guide sleeve assembly 20 and the first connecting cross tube 50 when the center tube 40 is retracted into the guide sleeve assembly 20. The upper surface of sole support frame 10 is provided with a plurality of enhancement pieces 26 of being connected with metal support bush 60, and enhancement piece 26 is triangle-shaped, and a right-angle side of enhancement piece 26 is connected with metal support bush 60, and another right-angle side and the upper surface connection of sole support frame 10, and enhancement piece 26 has strengthened being connected between metal support bush 60 and the sole support frame 10, has improved telescopic machanism's structural strength. The other ends of the two guide pipe sleeve assemblies 20 are respectively provided with a connecting lug 27, and the connecting lugs 27 are connected with the massage armchair frame, so that the telescopic frame and the massage armchair frame can be quickly mounted and dismounted.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.