CN114365919A - Back rest rod - Google Patents
Back rest rod Download PDFInfo
- Publication number
- CN114365919A CN114365919A CN202111593863.0A CN202111593863A CN114365919A CN 114365919 A CN114365919 A CN 114365919A CN 202111593863 A CN202111593863 A CN 202111593863A CN 114365919 A CN114365919 A CN 114365919A
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- rod
- telescopic
- bar
- backrest
- pipe
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- 230000000694 effects Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C16/00—Stand-alone rests or supports for feet, legs, arms, back or head
- A47C16/005—Back-rests
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Abstract
The present invention provides a back rest lever, including: a back rest rod body; the bottom foot rod is rotatably connected with the end part of the backrest rod body; the connecting rod, connecting rod and footing pole sliding connection, the connecting rod rotates with the back pole body to be connected. The invention solves the technical problem that the existing backrest rod is large in size and inconvenient to take and take, and achieves the technical effect that the backrest rod can be folded and is convenient to carry.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a backrest rod.
Background
With the health care awareness of people getting stronger, more and more people become aware of the protection of lumbar vertebrae and other parts. The waist rest and the back rest which are commonly used can be used only for household, and when the back rest and the waist rest are needed in outdoor activities, the back rest rod needs to be carried. However, in the process of actually using the backrest rod, the existing backrest rod is large in size and inconvenient to take, and the rest requirement of a user in the outdoor can not be met.
Disclosure of Invention
The invention solves the technical problem that the existing backrest rod is large in size and inconvenient to take and take, and achieves the technical effect that the backrest rod can be folded and is convenient to carry.
To solve the above problems, the present invention provides a back rest lever including: a back rest rod body; the bottom foot rod is rotatably connected with the end part of the backrest rod body; the connecting rod, connecting rod and footing pole sliding connection, the connecting rod rotates with the back pole body to be connected.
Compared with the prior art, the technical scheme has the following technical effects: the backrest rod body is convenient for leaning of a human body, and the bottom foot rod is connected with the backrest rod body to play a role in stabilizing the backrest rod. The backrest rod is rotatably connected with the backrest rod body through the bottom foot rod, the backrest rod can be folded and stored, the rotating angle is limited between the bottom foot rod and the backrest rod body through the connecting rod, and the backrest function of the backrest rod is realized.
In one example of the present invention, the back lever body includes: the bottom end of the telescopic pipe is rotatably connected with the bottom foot rod; wherein, the connecting rod is connected with the bottom of the telescopic pipe in a rotating way.
Compared with the prior art, the technical scheme has the following technical effects: the telescopic pipe can stretch out and draw back along the rod piece direction, and the user can adjust the height of the backrest rod according to the telescopic pipe, so that the telescopic pipe is convenient for users with different heights to use, and has stronger adaptability and applicability. The bottom end of the telescopic pipe on the backrest rod body is rotatably connected with the bottom foot rod, the bottom of the telescopic pipe cannot protrude, the telescopic pipe is convenient to rotate, and the backrest rod is convenient to place when in use. Furthermore, the connecting rod is convenient to connect the footing rod and the telescopic pipe.
In one example of the invention, the bottom foot rod is provided with a limiting sliding sleeve, and the limiting sliding sleeve can slide along the bottom foot rod; wherein, the connecting rod is connected with the limiting sliding sleeve in a rotating way.
Compared with the prior art, the technical scheme has the following technical effects: the limiting sliding sleeve is sleeved on the bottom foot rod and can slide along the bottom foot rod. The connecting rod is connected with the limiting sliding sleeve, is specifically connected to the side face of the limiting sliding sleeve, and is rotatably connected with the limiting sliding sleeve through a screw. When the connecting rod moves, the limiting sliding sleeve can be pushed to move. The connecting rod and the bottom foot rod can be connected in a sliding mode through the limiting sliding sleeve.
In one embodiment of the invention, the connecting rod is rotatably connected with the limit sliding sleeve through a connecting piece.
Compared with the prior art, the technical scheme has the following technical effects: the connecting piece pierces through spacing sliding sleeve and runs through the connecting rod completely with spacing sliding sleeve and be connected together to can relative slip between connecting rod and the spacing sliding sleeve. The connecting rod is rotatably connected with the limiting sliding sleeve through the connecting piece.
In one example of the invention, the bottom foot rod is provided with a waist-shaped groove; the waist-shaped groove is matched with the connecting piece, the connecting piece is embedded into the waist-shaped groove, and the connecting piece can slide along the waist-shaped groove.
Compared with the prior art, the technical scheme has the following technical effects: through setting up waist type groove and mutually supporting with the connecting piece, can inject the displacement position of the scope and the connecting rod that spacing sliding sleeve removed through the connecting piece, further, inject the angle of rotation between back pole body and the footing pole.
In one example of the present invention, a telescopic tube comprises: a telescopic outer tube; the telescopic inner pipe is sleeved in the telescopic outer pipe; the connecting pipe sleeve is sleeved at the end part of the telescopic outer pipe and is sleeved between the telescopic outer pipe and the telescopic inner pipe; wherein, flexible inner tube is equipped with a plurality of equidistance spaced first through-holes.
Compared with the prior art, the technical scheme has the following technical effects: the telescopic outer pipe is sleeved with the telescopic inner pipe, so that the length of the telescopic pipe is conveniently prolonged. When the telescopic inner pipe slides out of the telescopic outer pipe, the length of the telescopic pipe is long, and people can lean on the position of the backrest part and can adapt to the backrest of people with different heights; when the telescopic inner tube slides into the telescopic outer tube, the telescopic tube is shorter, and a person can sit at the position of the backrest part and use as a seat. The sleeve setting through flexible pipe can increase the function of back pole, makes the back pole also can satisfy the needs that the user had a rest to sitting when realizing that the user leans on the back functional requirement. And the telescopic pipe is provided with an inner pipe and an outer pipe, so that the telescopic pipe is convenient to store and carry.
In one example of the present invention, the back rest lever further includes: the fixed rod is arranged between the two telescopic pipes and is connected with the telescopic outer pipe; wherein, be equipped with the fixed ring cover on the flexible outer tube, fixed ring cover and flexible outer tube fixed connection, fixed ring cover is close to dead lever one side protrusion, and the protrusion inserts in the dead lever and is connected with the dead lever.
Compared with the prior art, the technical scheme has the following technical effects: the fixed rod is connected with the telescopic pipe through a fixed ring sleeve. The stability of the backrest rod can be further improved through the fixing rod, and the backrest rod is prevented from shaking left and right due to the fact that the parallelogram structure is formed.
In one example of the present invention, a fixing bar includes: the bolt is arranged in the fixed rod pipe and matched with the first through hole; one end of the spring is connected with the bolt, and the other end of the spring is fixed in the fixed rod; the second through hole is formed in the fixing rod, and the surface of the fixing rod penetrates through the first through hole; the bolt handle is arranged at the end part of the bolt and extends outwards through the second through hole.
Compared with the prior art, the technical scheme has the following technical effects: the fixing of the telescopic inner pipe can be realized through structures such as a bolt, and the telescopic inner pipe and the telescopic outer pipe are prevented from sliding back and forth when in use and cannot be fixed.
In one example of the present invention, the back lever body further includes: the supporting rod is connected with the two telescopic inner pipes; the backrest piece is sleeved on the supporting rod.
Compared with the prior art, the technical scheme has the following technical effects: the end part of the telescopic inner pipe is connected with a support rod, the support rod is a cross rod, and the part of the two ends connected with the telescopic inner pipe is arc-shaped. The backrest piece is a back cushion, the material is soft, but has supporting force, and the backrest piece is a part which is contacted with the human body part of the user and leans against the user.
In one example of the present invention, the back rest lever further includes: the pedal is arranged between the two foot rods and connects the foot rods.
Compared with the prior art, the technical scheme has the following technical effects: the back rest lever can be further stabilized by the pedal. When the backrest bar is used, a user can completely lean the center on the backrest bar body by stepping on the pedal, so that the use feeling of the user is enhanced.
After the technical scheme of the invention is adopted, the following technical effects can be achieved:
(1) the bottom foot rod is rotatably connected with the backrest rod body, so that the backrest rod can be folded and stored, the rotating angle between the bottom foot rod and the backrest rod body is limited through the connecting rod, the backrest function of the backrest rod is realized, and the backrest rod can be folded and is convenient to carry;
(2) the flexible pipe includes flexible inner tube and flexible outer tube, and flexible outer tube can stretch out and draw back the slip in flexible outer tube, and when flexible inner tube did not stretch out the outer tube, can satisfy the user to the demand of sitting the rest as the seat, when flexible inner tube stretches out the outer tube, can satisfy user's dependence demand as the back pole.
Drawings
Fig. 1 is a schematic structural view of a back rest lever according to the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a sectional view of the back lever body.
Description of reference numerals:
100-a back rest bar; 110-a back rest bar body; 111-telescoping tubes; 111 a-telescoping outer tube; 111 b-telescoping inner tube; 111 c-connecting pipe sleeve; 112-fixed ring sleeve; 113-a support bar; 114-a back-rest; 120-footing bar; 121-a limiting sliding sleeve; 122-a connector; 123-waist-shaped groove; 130-a connecting rod; 140-a fixation bar; 141-a latch; 142-a spring; 143-a second via; 144-latch handle; 150-pedal.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
in a particular embodiment, referring to fig. 1, a back rest lever is provided, the back rest lever 100 comprising: a back rest lever body 110; a foot bar 120, the foot bar 120 being rotatably connected to the end of the back-rest bar body 110; the connecting rod 130, the connecting rod 130 is slidably connected to the bottom lever 120, and the connecting rod 130 is rotatably connected to the back lever body 110.
In the present embodiment, the backrest lever 100 includes a backrest lever body 110 and a foot lever 120, wherein the backrest lever body 110 and the foot lever 120 are rotatably connected and can form an included angle. The angle of rotation between the back lever body 110 and the foot lever 120 is defined by the connecting rod 130. The back lever body 110 is used for a user to lean against, and the bottom lever 120 is used to support and fix the back lever body 110.
Specifically, the back lever body 110 is U-shaped, and the back lever body 110 includes: the back rest 114 is a cross bar, telescopic tube 111 and support bar 113. The backrest part 114 is a part on which the user mainly leans, one end of the telescopic tube 111 is connected with the foot bar 120, and the other end of the telescopic tube 111 is connected with the support bar 113. The support rod 113 is formed in a circular arc shape and connects the telescopic tube 111 with the backrest member 114. Therefore, two support rods 113 are connected to both ends of the back support member 114, respectively, and the other end of each support rod 113 is connected to the telescopic tube 111 to form the U-shaped back support rod body 110. Both ends of the back rest lever body 110 are connected to the bottom leg lever 120, and are rotatably connected therebetween. Further, another embodiment is possible in which the backrest member 114 is a cross bar, and only one telescopic tube 111 is connected to the backrest member 114 and directly to the middle of the backrest member 114. The other end of the telescopic tube 111 is rotatably connected to a foot bar 120.
Specifically, the rotational connection between the back lever body 110 and the bottom lever 120 is achieved by a rotating base. The rotary base is arranged at the joint of the telescopic pipe 111 and the bottom foot rod 120 and is a right-angle base. One end of the rotating base can sleeve the bottom foot rod 120, and one end of the bottom foot rod 120 extends into the rotating base and is rotationally connected with the rotating base through a screw; the other end of the rotating base can be connected with the telescopic pipe 111 in a sleeved mode, and the telescopic pipe 111 is connected with the rotating base through screws after extending into the rotating base. Further, there may be another embodiment in which the telescopic tube 111 is hinged to the bottom foot bar 120 by a hinge.
Specifically, the connecting rod 130 is a metal strip-shaped connecting rod with strong strength, and the connecting rod 130 is disposed on two sides of the telescopic tube 111 and the bottom foot rod 120. The connecting rod 130 is rotatably connected with the telescopic tube 111 through a screw and slides back and forth in the waist-shaped groove 123 on the bottom foot rod 120 through the screw. Wherein, the bottom foot rod 120 is provided with a waist-shaped groove 123, and the connecting rod 130 is limited in the waist-shaped groove 123 through a screw to slide. When the telescopic tube 111 and the foot lever 120 are relatively rotated, the connecting rod 130 is rotated on the telescopic tube 111 and slides on the foot lever 120. The sliding range of the connecting rod 130 on the bottom foot rod 120 is determined by the waist-shaped groove 123. When the connecting rod 130 slides to the end of the waist-shaped groove 123 far away from the telescopic tube 111, the angle between the telescopic tube 111 and the bottom foot rod 120 is zero, and the backrest rod 100 is in a storage state; when the connecting rod 130 slides to one end of the waist-shaped groove 123 close to the telescopic tube 111, the angle between the telescopic tube 111 and the bottom rod 120 is the largest, and the backrest rod 100 is in a use state.
In this embodiment, the back lever body 110 is convenient for a person to lean against, and the bottom lever 120 is connected to the back lever body 110 to stabilize the back lever 100. The folding and storage of the back support rod 100 can be realized by the rotational connection between the foot rod 120 and the back support rod body 110, and the rotation angle between the foot rod 120 and the back support rod body 110 is limited by the connecting rod 130, so that the back support function of the back support rod 100 is realized.
Example two:
in a specific embodiment, referring to fig. 1, the back lever body 110 includes: the bottom end of the telescopic pipe 111 is rotatably connected with the bottom foot rod 120; wherein, the connecting rod 130 is rotatably connected with the bottom end of the telescopic tube 111.
In this embodiment, the telescopic tube 111 can be extended and retracted along the rod direction, and a user can adjust the height of the backrest rod 100 according to the telescopic tube 111, so that the backrest rod is more convenient for users with different heights to use, and has stronger adaptability and applicability. The bottom end of the telescopic tube 111 on the backrest rod body 110 is rotatably connected with the bottom foot rod 120, and the bottom of the telescopic tube 111 does not protrude, so that the telescopic tube 111 can rotate conveniently, and the backrest rod 100 can be placed conveniently when in use. Further, it is convenient for the connecting rod 130 to connect the foot bar 120 and the telescopic tube 111.
Example three:
in a specific embodiment, referring to fig. 2, a limiting sliding sleeve 121 is disposed on the bottom foot rod 120, and the limiting sliding sleeve 121 can slide along the bottom foot rod 120; wherein, the connecting rod 130 is rotatably connected with the limiting sliding sleeve 121.
In this embodiment, one end of the connecting rod 130 slides on the bottom foot rod 120, specifically, by the limiting sliding sleeve 121. Wherein, the sleeve between the limiting sliding sleeve 121 and the bottom foot rod 120 is tightly sleeved, and the friction force is larger in the sliding process. The limiting sliding sleeve 121 is sleeved on the footing rod 120 and can slide along the footing rod 120. The connecting rod 130 is connected with the limiting sliding sleeve 121, specifically connected to the side of the limiting sliding sleeve 121, and is rotatably connected with the limiting sliding sleeve 121 through a screw. When the connecting rod 130 moves, the limiting sliding sleeve 121 can be pushed to move. The connecting rod 130 can be slidably connected with the footing rod 120 through the limiting sliding sleeve 121.
Example four:
in a specific embodiment, referring to fig. 2, the connecting rod 130 is rotatably connected with the limit sliding sleeve 121 through a connecting member 122.
In this embodiment, the connecting rod 130 is connected to the limiting sliding sleeve 121, specifically through the connecting member 122. The connecting member 122 may be a long bolt, a screw, and preferably a screw. The connecting piece 122 penetrates through the limit sliding sleeve 121 to completely penetrate and connect the connecting rod 130 and the limit sliding sleeve 121 together, and the connecting rod 130 and the limit sliding sleeve 121 can slide relatively. The connecting rod 130 is rotatably connected with the limiting sliding sleeve 121 through the connecting piece 122.
Example five:
in a particular embodiment, see fig. 2, the foot bar 120 is provided with a waist-shaped groove 123; the waist-shaped groove 123 is matched with the connecting piece 122, the connecting piece 122 is embedded into the waist-shaped groove 123, and the connecting piece 122 can slide along the waist-shaped groove 123.
In this embodiment, the waist-shaped groove 123 of the foot rod 120 is a waist-shaped groove 123 completely penetrating through the foot rod 120. The waist-shaped groove 123 is long and is formed in the middle of the side surface of the footing bar 120, and the footing bar 120 is completely penetrated from the side surface. The width of the waist-shaped groove 123 can be matched with the connecting piece 122, and the connecting piece 122 can extend into the waist-shaped groove 123, so that the limiting sliding sleeve 121 can be limited by the position of the connecting rod 122 on the waist-shaped groove 123 when sliding on the bottom foot rod 120. Specifically, the connecting rod 122 is a long bolt, and after the long bolt passes through the waist-shaped groove 123, two ends of the long bolt are respectively connected with the limiting sliding sleeve 121 on the bottom foot rod 120 and the connecting rods 130 on two sides of the bottom foot rod 120. Thus, when the limit sliding sleeve 121 slides, the connecting rod is driven by the connecting piece 122 to move, and the moving range is limited by the length of the kidney-shaped groove 123. When the connecting member 122 moves to the end of the waist-shaped groove 123 close to the back-support rod body 110, the included angle between the connecting rod 130 and the bottom rod 120 is the largest, the included angle between the connecting rod 130 and the telescopic tube 111 is the smallest, and the opening angle between the back-support rod body 110 and the bottom rod 120 is the largest. When the connecting member 122 moves to the end of the waist-shaped groove 123 far away from the back lever body 110, the included angle between the connecting rod 130 and the bottom lever 120 is the smallest, the included angle between the connecting rod 130 and the telescopic tube 111 is the largest, the opening angle between the back lever body 110 and the bottom lever 120 is the smallest, and the back lever body 110 and the bottom lever 120 are overlapped.
In this embodiment, by providing the waist-shaped groove 123 and cooperating with the connecting member 122, the moving range of the limiting sliding sleeve 121 and the moving position of the connecting rod 130 can be limited by the connecting member 122, and further, the rotating angle between the backrest rod body 130 and the bottom rod 120 can be limited.
Example six:
in a particular embodiment, with reference to fig. 3, the bellows 111 comprises: a telescopic outer tube 111 a; the telescopic inner pipe 111b is sleeved in the telescopic outer pipe 111 a; a connection socket 111c, the connection socket 111c being provided at an end of the telescopic outer pipe 111a, the connection socket 111c being provided between the telescopic outer pipe 111a and the telescopic inner pipe 111 b; the telescopic inner tube 111b is provided with a plurality of first through holes 111d at equal intervals.
In this embodiment, the outer telescopic tube 111a is sleeved outside the inner telescopic tube 111b, the inner telescopic tube 111b can slide along the direction of the inner telescopic tube 111, and both the outer telescopic tube 111a and the inner telescopic tube 111b are hollow. The connection pipe sleeve 111c is provided at the telescopic interface between the telescopic outer pipe 111a and the telescopic inner pipe 111 b. The sleeve portion of the connection pipe sleeve 111c is disposed inside the outer telescopic pipe 111a and outside the inner telescopic pipe 111b, i.e. the sleeve portion is disposed between the outer telescopic pipe 111a and the inner telescopic pipe 111 b. One end of the sleeve portion of the connecting sleeve 111c is folded and extended outwardly along the circumference of the sleeve, and the extended portion can be overlapped on the cross-sectional opening of the telescopic outer tube 111 b. The connection sleeve 111c is fixedly connected to one end of the telescopic outer tube 111a close to the backrest 114 through an extension part, and the telescopic inner tube 111b can be buffered and protected through the connection sleeve 111c when being telescopic.
In this embodiment, the outer telescopic tube 111a is sleeved with the inner telescopic tube 111b, so as to extend the length of the telescopic tube 111. When the telescopic inner tube 111b slides out of the telescopic outer tube 111a, the length of the telescopic tube 111 is long, and people can lean against the backrest part 114, so that the telescopic tube can adapt to the backrest of people with different heights; when the telescopic inner tube 111b is slid into the telescopic outer tube 111a, the telescopic tube 111 is short and a person can sit at the backrest 114 position and use as a chair. The function of the back support rod 100 can be increased by the sleeve arrangement of the telescopic tube 111, so that the back support rod 100 can meet the requirement of a user for sitting and resting while realizing the requirement of the back support function of the user. And the telescopic tube 111 is provided with an inner tube and an outer tube, which is convenient for storage and carrying.
Example seven:
in a specific embodiment, referring to fig. 3, the back rest lever 100 further includes: a fixing rod 140, the fixing rod 140 being disposed between the two telescopic tubes 111 and connected to the telescopic outer tube 111 a; wherein, the telescopic outer tube 111a is provided with a fixed ring sleeve 112, the fixed ring sleeve 112 is fixedly connected with the telescopic outer tube 111a, one side of the fixed ring sleeve 112 close to the fixing rod 140 protrudes, and the protruding part is inserted into the fixing rod 140 and connected with the fixing rod 140.
In this embodiment, the fixing rod 140 is disposed between the two telescopic tubes 111, and is implemented by a fixing ring sleeve 112. The fixed ring sleeve 112 is sleeved outside the telescopic tube 111, is a cylindrical ring sleeve, and is fixed on the telescopic outer tube 111a through connecting parts such as screws and buckles. The fixing rod 140 is connected to the telescopic tube 111 by a fixing ring 112. The stability of the back lever 100 can be further increased by the fixing lever 140, and the back lever 100 is prevented from forming a parallelogram structure and shaking left and right.
Example eight:
in a specific embodiment, referring to fig. 3, the fixing bar 140 includes: a bolt 141, the bolt 141 is arranged in the fixing rod 140 and matched with the first through hole 111 d; a spring 142, one end of the spring 142 is connected with the bolt 141, and the other end of the spring 142 is fixed in the fixing rod 140; the second through hole 143, the second through hole 143 is set in dead lever 140, the first through hole 143 pierces the surface of dead lever 140; a latch handle 144, wherein the latch handle 144 is disposed at the end of the latch 141 and extends outward through the second through hole 143.
In the present embodiment, the telescopic outer tube 111a and the telescopic inner tube 111b are fitted to each other, and the length of the telescopic tube 111 can be increased or decreased. However, during the sliding of the telescopic inner tube 111b, the relative position between the telescopic inner tube 111b and the telescopic outer tube 111a is not fixed by the pin 141 in the fixing rod 140. The latch 141 is provided inside the fixing lever 140 and can slide back and forth inside the fixing lever 140. The end of the latch 141 is engaged with the first through hole 111d of the inner tube 111b, and the latch 141 can extend into the first through hole 111d, so as to lock the inner tube 111b and prevent it from sliding back and forth. The other end of the latch 141 is provided with a spring 142, and the other end of the spring 142 is fixedly connected in the fixing rod 140. When the latch 141 does not extend into the first through hole 111d, the spring 142 is in a contracted state, the end of the latch 141 connected with the paralysis 142 is provided with a latch handle 144, and the latch handle 144 extends out of the second through hole 143 and is exposed at the bottom end of the fixing rod 140, so that the latch is convenient to hold by a hand. The second through hole 143 is a long through hole for the bolt handle 144 to move back and forth, and grooves are formed at both ends of the second through hole 143 for the bolt handle 144 to be placed or fixed. During the use, the user need inwards stir bolt handle 144, shifts out the bolt from first through-hole 111d, then adjusts flexible inner tube 111b and adjusts the back and stir bolt handle 144 outwards again, inserts another first through-hole 111d department on the flexible inner tube 111b of alignment. The fixing of the inner telescopic tube 111b can be achieved by a structure such as the latch 141, and the inner telescopic tube 111b and the outer telescopic tube 111a are prevented from sliding back and forth and being unable to be fixed when in use.
Example nine:
in a specific embodiment, referring to fig. 3, the back lever body 111 further includes: a support rod 113, wherein the support rod 113 is connected with the two telescopic inner pipes 111 b; the backrest 114 is sleeved on the support rod 113, and the backrest 114 is sleeved on the support rod 113.
In this embodiment, the end of the inner tube 111b is connected to a support rod 113, the support rod 113 is a cross rod, and the portion of the two ends connected to the inner tube 111b is configured as a circular arc. The backrest 114 is a cushion made of soft material but having a supporting force, and the backrest 114 is a lower part that contacts with a user's body.
Example ten:
in a specific embodiment, referring to fig. 1, the back rest lever 100 further includes: a pedal 150, the pedal 150 is disposed between the two foot bars 120, and connects the foot bars 120.
In this embodiment, the pedal 150 is a rectangular plate-shaped structure, is disposed on the ground-contacting side of the two foot bars, and connects the two foot bars 120. The step 150 is provided between the two leg bars 120, and the back bar 100 can be further stabilized by the step 150. When the backrest is used, the user can completely lean the center on the backrest rod body 110 by stepping on the pedal 150, so that the use feeling of the user is enhanced.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A back rest lever, characterized in that the back rest lever (100) comprises:
a back rest lever body (110);
the bottom foot rod (120), the bottom foot rod (120) is connected with the end part of the backrest rod body (110) in a rotating way;
the connecting rod (130), connecting rod (130) with footing pole (120) sliding connection, connecting rod (130) with back pole body (110) rotate to be connected.
2. The back bar of claim 1, wherein the back bar body (110) comprises:
the bottom end of the telescopic pipe (111) is rotatably connected with the footing rod (120);
wherein, the connecting rod (130) is rotatably connected with the bottom end of the telescopic pipe (111).
3. The backrest rod according to claim 1, wherein the footing rod (120) is provided with a limit sliding sleeve (121), and the limit sliding sleeve (121) can slide along the footing rod (120);
wherein, the connecting rod (130) is rotatably connected with the limiting sliding sleeve (121).
4. A back rest bar according to claim 3, characterized in that the connecting rod (130) is rotatably connected with the limit slide (121) by means of a connecting piece (122).
5. A back rest bar according to claim 4, characterized in that the footing bar (120) is provided with a waist-shaped groove (123);
waist type groove (123) with connecting piece (122) cooperation, connecting piece (122) embedding in waist type groove (123), connecting piece (122) can be followed waist type groove (123) slide.
6. A back lever according to claim 2, wherein the telescopic tube (111) comprises:
a telescopic outer tube (111 a);
the telescopic inner pipe (111b) is sleeved in the telescopic outer pipe (111 a);
a connection socket (111c), the connection socket (111c) being provided at an end of the telescopic outer pipe (111a), the connection socket (111c) being provided between the telescopic outer pipe (111a) and the telescopic inner pipe (111 b);
wherein, the telescopic inner pipe (111b) is provided with a plurality of first through holes (111d) at equal intervals.
7. The back bar of claim 6, wherein the back bar (100) further comprises:
the fixing rod (140) is arranged between the two telescopic pipes (111) and connected with the telescopic outer pipe (111 a);
the telescopic outer pipe (111a) is provided with a fixed ring sleeve (112), the fixed ring sleeve (112) is fixedly connected with the telescopic outer pipe (111a), one side, close to the fixing rod (140), of the fixed ring sleeve (112) protrudes, and the protruding portion is inserted into the fixing rod (140) and connected with the fixing rod (140).
8. The back rest bar of claim 7, wherein the fixing bar (140) comprises:
the bolt (141) is arranged in the fixing rod (140) tube, and is matched with the first through hole (111 d);
one end of the spring (142) is connected with the bolt (141), and the other end of the spring (142) is fixed in the fixing rod (140);
the second through hole (143) is formed in the fixing rod (140), and the surface of the fixing rod (140) is penetrated through the first through hole (143);
the bolt handle (144) is arranged at the end part of the bolt (141), and the bolt handle (144) extends outwards through the second through hole (143).
9. The back bar of claim 6, wherein the back bar body (111) further comprises:
the supporting rod (113), the said supporting rod (113) is connected with two said telescopic inner tubes (111 b);
the backrest piece (114) is sleeved on the supporting rod (113).
10. The back bar of claim 1, wherein the back bar (100) further comprises:
the pedal (150) is arranged between the two foot rods (120) and connects the foot rods (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593863.0A CN114365919A (en) | 2021-12-24 | 2021-12-24 | Back rest rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593863.0A CN114365919A (en) | 2021-12-24 | 2021-12-24 | Back rest rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114365919A true CN114365919A (en) | 2022-04-19 |
Family
ID=81142933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111593863.0A Pending CN114365919A (en) | 2021-12-24 | 2021-12-24 | Back rest rod |
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| CN (1) | CN114365919A (en) |
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