CN210707584U - Rotary mechanism capable of limiting and trolley using rotary mechanism - Google Patents
Rotary mechanism capable of limiting and trolley using rotary mechanism Download PDFInfo
- Publication number
- CN210707584U CN210707584U CN201921482159.6U CN201921482159U CN210707584U CN 210707584 U CN210707584 U CN 210707584U CN 201921482159 U CN201921482159 U CN 201921482159U CN 210707584 U CN210707584 U CN 210707584U
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- limiting
- rotation
- seat
- groove
- spacing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a spacing rotary mechanism and use this rotary mechanism's handcart, wherein spacing rotary mechanism includes the bracing piece, can wind bracing piece pivoted supporting seat and rotatory stop gear, rotatory stop gear is including setting up at the first spacing portion of supporting seat lower part, along the second spacing portion of bracing piece up-and-down motion, the elasticity that resets to second spacing portion resets and prevent the second spacing portion wind the anti-rotation mechanism of bracing piece rotation, the second spacing portion blocks with the first spacing portion is rotatory, be fixed with the backstop seat on the bracing piece, elasticity resets one end and leans on the backstop seat, the other end leans on the second spacing portion; the arrangement enables the seat on the trolley to rotate, and the seat orientation is realized.
Description
Technical Field
The utility model relates to a rotary mechanism that can be spacing and use this rotary mechanism's handcart
Belonging to the field of children's vehicles.
Background
The handcart is a common article for children to go out, a seat is generally arranged on the handcart, the seat on the handcart is generally arranged forwards to enable the child sitting on the handcart to face forwards or backwards, and the child sitting on the handcart faces a parent pushing the handcart so as to facilitate communication; the seat installed on the existing handcart can not rotate, and the user can not select the orientation position of the child according to the actual situation.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model provides a can spacing rotary mechanism and use this rotary mechanism's handcart installs this rotary mechanism in the seat lower part, makes things convenient for the seat rotatory.
In order to achieve the above purpose, the utility model provides a following technical scheme: a rotatable limiting mechanism comprises a supporting rod, a supporting seat and a rotatable limiting mechanism, wherein the supporting seat can rotate around the supporting rod, the rotatable limiting mechanism comprises a first limiting part arranged at the lower part of the supporting seat, a second limiting part which moves up and down along the supporting rod, an elastic resetting piece which resets the second limiting part, and an anti-rotating mechanism which prevents the second limiting part from rotating around the supporting rod, the second limiting part is abutted against the first limiting part to block the first limiting part from rotating, a blocking seat is fixed on the supporting rod, one end of the elastic resetting piece is abutted against the blocking seat, and the other end of the elastic resetting piece is abutted against the second limiting part; the arrangement enables the seat on the trolley to rotate, and the seat orientation is realized.
The utility model is further arranged in that the first limiting part is a non-circular limiting block or a limiting groove arranged on the bottom surface of the supporting seat, the second limiting part is sleeved on the supporting rod, and the second limiting part is provided with a limiting groove or a limiting block matched with the non-circular limiting block or the limiting groove; the limiting block is sunk into the limiting groove to brake the first limiting part by the second limiting part.
The utility model is further arranged that the first limiting part is a non-circular limiting block arranged on the bottom surface of the supporting seat, the limiting block is cuboid-shaped, the limiting groove is arranged on the inner wall of the second limiting part, and the cross section of the limiting groove is in a right-angled triangle shape matched with the angle of the cuboid; when the limit is arranged, the side wall of the limit groove is attached to the side wall of the limit block, so that the limit is more stable, and the shaking is avoided.
The utility model discloses further set up to, the elastic component that resets is the spring, the spring housing is established on the bracing piece, spring one end supports and leans on in the spacing portion of second, the other end supports and leans on support on the seat.
The utility model is further arranged in such a way that the bottom surface of the supporting seat extends downwards to form a first guide retaining ring which plays a role in guiding the up-and-down movement of the second limiting part, the second limiting part is in a circular ring shape, the second limiting part is provided with a first limiting guide groove which is provided with an upward opening and is used for accommodating the first guide retaining ring, and the first limiting guide groove is in a circular ring shape which has the same axis with the second limiting part; the first guide retainer ring of the second limiting part is always sunk into the first limiting guide groove in the up-and-down movement process, the arrangement can play an auxiliary guide role on the second limiting part, and meanwhile, a transverse gap is prevented from being formed between the second limiting part and the bottom surface of the supporting seat, so that a user is prevented from clamping and hurting hands when the angle of the seat is adjusted.
The utility model discloses further set up as, still open the second spacing guide slot that the annular opening is decurrent on the second spacing portion, the second spacing guide slot with first spacing guide slot does not communicate, the stop seat cover is in the bracing piece lower part, the stop seat is the circular slot type that the opening is up, the bottom of stop seat blocks the lower extreme of spring, and the upper end of spring is supported and is leaned on in the second spacing guide slot, the upper end of stop seat lateral wall stretches into in the second spacing guide slot; the upper end of the side wall of the blocking seat is always positioned in the second limiting guide groove in the vertical movement process of the second limiting part, the second limiting part can be further guided by the arrangement, a transverse gap between the second limiting part and the blocking seat is avoided, and a user is prevented from clamping hands in the vertical movement process of the second limiting part.
The utility model discloses further set up to, prevent changeing the mechanism including setting up the recess of preventing changeing or preventing changeing the arch on the spacing portion inner wall of second to and set up the protruding or prevent changeing the recess of preventing changeing on the bracing piece, prevent changeing the arch and can slide from top to bottom in preventing changeing the recess, prevent changeing the recess and be provided with a plurality of, prevent changeing protruding with prevent changeing the quantity and the position adaptation of recess, prevent changeing the recess inside wall with prevent changeing protruding counterbalance and realize preventing changeing.
The utility model is further arranged in that the first limiting part is a non-circular limiting block arranged on the bottom surface of the supporting seat, the anti-rotation bulge is arranged on the supporting rod, the anti-rotation groove is arranged on the second limiting part, the anti-rotation groove runs through the second limiting part in the height direction of the second limiting part, and the side wall of the anti-rotation groove is propped against the limiting block to block the first limiting part from rotating; with the arrangement, the anti-rotation groove can be used as a limiting groove for limiting the rotation of the first limiting part, so that the structure is simpler.
The utility model is further arranged in such a way that a downward rotary rod is fixed at the lower part of the supporting seat, the rotary rod is positioned in the middle of the first limiting part, the supporting rod is cylindrical, a bearing is fixed on the inner wall of the upper end of the supporting rod, and the rotary rod is fixed on the inner ring of the bearing; the support seat rotates around the support rod more smoothly by adopting a bearing connection mode.
A trolley comprises a seat, an underframe, wheels, an inclined strut connected to the underframe and the rotary mechanism capable of limiting, wherein an inclined strut connecting part fixedly connected with the inclined strut is arranged at the lower end of a supporting rod, the inclined strut connecting part and the lower half part of the supporting rod are integrally formed, and the inclined strut connecting part is in a sleeve shape and is sleeved on the inclined strut; the seat may be mounted directly or indirectly on the support.
Drawings
Fig. 1 is an exploded view of a rotatable mechanism capable of limiting position according to the present invention;
fig. 2 is a schematic structural view of a position-limitable rotating mechanism of the present invention;
fig. 3 is a bottom view of the middle support seat of the present invention;
fig. 4 is a first schematic structural view of the second position-limiting portion of the present invention;
fig. 5 is a top view of the second position-limiting portion of the present invention;
FIG. 6 is a second schematic structural view of the second position-limiting portion of the present invention;
FIG. 7 is a schematic structural view of a middle stop seat of the utility model;
fig. 8 is a top view of the abutment of the utility model;
fig. 9 is a schematic structural view of the cart in the utility model.
In the figure: 1. a supporting seat; 2. a support bar; 3. a second limiting part; 4. a spring; 5. a stop seat; 6. a sprag connection; 7. a wheel; 8. a seat; 9. a chassis; 10. bracing; 11. a first limiting part; 12. rotating the rod; 13. a first guide retainer ring; 21. a plug rod; 22. a bearing rod; 221. an anti-rotation protrusion; 31. a limiting groove; 32. an anti-rotation groove; 33. a first limiting guide groove; 34. and the second limiting guide groove.
Detailed Description
The following describes an embodiment of a position-limiting rotating mechanism and a cart using the same according to the present invention with reference to fig. 1 to 9.
Referring to the attached drawings 1 and 2 of the specification, the limiting rotating mechanism comprises a supporting rod 2, a supporting seat 1 and a rotating limiting mechanism, wherein the supporting seat 1 rotates around the supporting rod 2, a downward rotating rod 12 is fixed on the lower portion of the supporting seat 1, the supporting rod is cylindrical, a bearing is fixed on the inner wall of the upper end of the supporting rod, and the rotating rod 12 is fixed on an inner ring of the bearing.
The support rod 2 comprises an upper inserting rod 21 and a lower bearing rod 22, the inserting rod 21 extends into the bearing rod 22 and is fixedly connected with the bearing rod 22 through a bolt, the inserting rod 21 is cylindrical, and the lower end of the inserting rod 21 is obliquely arranged to facilitate inserting; the receiving rod 22 is cylindrical and fits the insertion rod 21.
Referring to fig. 1 and 3 of the specification, the rotation limiting mechanism includes a first limiting portion 11 disposed at a lower portion of the rotatable supporting seat 1, a second limiting portion 3 capable of moving up and down along the supporting rod, and an anti-rotation mechanism limiting the rotation of the second limiting portion 3 around the supporting rod, wherein the second limiting portion 3 abuts against the first limiting portion 11 to block the rotation of the first limiting portion 11; still include the elasticity piece that resets, be fixed with on the bracing piece 2 and keep out the seat 5 that keeps out elasticity piece one end that resets, elasticity piece one end that resets supports and leans on keeping out seat 5, and the other end supports and leans on spacing portion 3 of second.
The first limiting part 11 is arranged on the bottom surface of the supporting seat 1 and is integrally formed with the supporting seat 1, and the first limiting part 11 is in a non-circular shape with at least one corner or protruding strip, preferably a rectangular shape; the rotating rod 12 is located at the center of the first limiting part 11; the bottom surface of the supporting seat 1 extends downwards to form a first guide retainer ring 13 which plays an auxiliary guide role in the up-and-down movement of the second limiting part 3.
Referring to the specifications 4 to 6, the second position-limiting portion 3 is sleeved on the support rod 2, and a position-limiting groove 31 is formed in the inner wall of the second position-limiting portion 3; when the first limiting part 11 is rectangular, four limiting grooves 31 are arranged, the connecting lines of the four limiting grooves 31 are rectangular matched with the rectangular first limiting part 11, the cross section of each limiting groove 31 is in a right-angled triangle matched with the angle of the rectangular, and the limiting grooves 31 do not penetrate through the second limiting part 3 in the longitudinal direction; the second limiting part 3 is in a circular ring shape, a first limiting guide groove 33 with an upward opening and used for accommodating the first guide retainer ring 13 is formed in the circular second limiting part 3, and the first limiting guide groove 33 is in a circular ring shape which is coaxial with the circular second limiting part 3; the second limiting part 3 is also provided with a circular second limiting guide groove 34 with a downward opening, and the second limiting guide groove 34 is not communicated with the first limiting guide groove 33.
Referring to the specifications 1, 4, 5 and 6, the anti-rotation mechanism includes an anti-rotation groove 32 or an anti-rotation protrusion provided on the inner wall of the second limiting portion 3, and an anti-rotation protrusion 221 or an anti-rotation groove provided on the support rod 2; preferably, the anti-rotation protrusions 221 are disposed on the support bar 2, and the anti-rotation grooves 32 are disposed on the inner wall of the second limiting portion 3; one or more anti-rotation grooves 32 can be arranged according to actual needs, and the number and the positions of the anti-rotation protrusions 221 correspond to those of the anti-rotation grooves 32; preferably, four anti-rotation grooves 32 are provided, the four anti-rotation grooves 32 are staggered with the four limiting grooves 31, the connecting line of the four anti-rotation grooves 32 on the horizontal plane is rectangular and matched with the first limiting part 11, and at this time, the anti-rotation grooves 32 can also limit the rotation of the first limiting part 11; the rotation preventing protrusions 221 can slide up and down in the rotation preventing grooves 32.
Preferably, prevent changeing recess 32 and set up at the spacing portion 3 inner wall of second, prevent changeing protruding edge circumferential direction setting on the surface of adapting rod 22, prevent changeing protruding if setting up a plurality ofly, a plurality ofly prevent changeing protruding evenly distributed on adapting rod 22, prevent changeing recess 32 and run through spacing portion 3 of second setting in the direction of height, prevent that the upper portion that changes recess 32 can offset with first spacing portion 11 and stop first spacing portion 11 rotatory this moment.
The elastic reset piece is a spring 4, the spring 4 is sleeved on the supporting rod, and the upper end of the spring 4 abuts against the second limiting guide groove 34; a resisting seat 5 is fixed at the lower part of the supporting rod 2, and referring to the attached figures 1, 7 and 8 of the specification, the resisting seat 5 is sleeved on the supporting rod 2, the resisting seat 5 is in a circular groove shape with an upward opening, the bottom of the resisting seat 5 blocks the lower end of the spring 4, the lower end of the resisting seat 5 is provided with an inward bulge, and the upper end of the side wall of the resisting seat 5 extends into the second limiting guide groove 34; during installation, the resisting seat 5 is sleeved on the adapting rod 22 from the upper part of the adapting rod 22, at the moment, the bulge on the resisting seat 5 penetrates through a gap between two adjacent anti-rotation bulges on the adapting rod 22, and the bulge on the resisting seat 5 can also prevent the spring 4 from sliding out from the lower end of the resisting seat 5.
Referring to the attached figure 9 of the specification, a handcart comprises a seat 8, an underframe 9, wheels 7, an inclined strut 10 connected to the underframe 9 and the rotating mechanism, wherein an inclined strut connecting part 6 fixedly connected with the inclined strut 10 is arranged at the lower end of the support rod 2, the inclined strut connecting part 6 and a bearing rod 22 are integrally formed, and the inclined strut connecting part 6 is sleeve-shaped and is sleeved on the inclined strut 10; the seat 8 is mounted on the support base 1, and a folding mechanism of the seat 8 can be arranged between the seat 8 and the support base 1.
Install seat 8 or the part that needs to rotate on supporting seat 1 during the use, the spacing portion 3 of drop-down second, spacing portion 3 of second separates with first spacing portion 11, supporting seat 1 can drive seat 8 of installing on supporting seat 1 around the bracing piece is rotatory this moment, when seat 8 is rotatory to needs position, under the effect that the elasticity resets, spacing portion 3 of second moves up and offsets with first spacing portion 11, because of spacing portion 3 of second can not rotate, so spacing portion 3 of second supports first spacing portion 11, avoid first spacing portion 11 to rotate, thereby avoid seat 8 to rotate.
The above rotating mechanism capable of limiting is not only used for rotating the handcart seat, but also suitable for other rotating mechanisms which need to be limited.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a can spacing rotary mechanism, its characterized in that includes the bracing piece, can wind bracing piece pivoted supporting seat and rotatory stop gear, rotatory stop gear is including setting up the first spacing portion of supporting seat lower part, edge the spacing portion of second of bracing piece up-and-down motion, the elasticity that resets and prevent that the spacing portion of second resets the spacing portion of second winds bracing piece pivoted anti-rotation mechanism, the spacing portion of second with first spacing portion offsets and blocks first spacing portion is rotatory, be fixed with the seat of keeping off on the bracing piece, elasticity resets one end and supports and lean on the seat of keeping off, and the other end supports and leans on in the spacing portion of second.
2. The mechanism of claim 1, wherein the first position-limiting portion is a non-circular position-limiting block or a position-limiting groove formed on the bottom surface of the supporting base, the second position-limiting portion is sleeved on the supporting rod, and the second position-limiting portion is provided with a position-limiting groove or a position-limiting block engaged with the non-circular position-limiting block or the position-limiting groove.
3. The mechanism of claim 2, wherein the first limiting portion is a non-circular limiting block disposed on the bottom surface of the supporting base, the limiting block is rectangular, the limiting groove is disposed on the inner wall of the second limiting portion, and the cross section of the limiting groove is a right triangle adapted to the corner of the rectangular parallelepiped.
4. The mechanism of claim 1, wherein the resilient return element is a spring, the spring is sleeved on the support rod, one end of the spring abuts against the second position-limiting portion, and the other end of the spring abuts against the abutment seat.
5. The limit rotating mechanism according to claim 4, wherein a first guide retaining ring for guiding the second limit portion to move up and down is arranged on the bottom surface of the support base in a downward extending manner, the second limit portion is circular, a first limit guide groove with an upward opening and used for accommodating the first guide retaining ring is formed in the second limit portion, and the first limit guide groove is circular and coaxial with the second limit portion.
6. The limiting rotating mechanism according to claim 5, wherein a circular second limiting guide groove with a downward opening is further formed in the second limiting portion, the second limiting guide groove is not communicated with the first limiting guide groove, the blocking seat is sleeved on the lower portion of the support rod and is in a circular groove shape with an upward opening, the bottom of the blocking seat blocks the lower end of the spring, the upper end of the spring is blocked in the second limiting guide groove, and the upper end of the side wall of the blocking seat extends into the second limiting guide groove.
7. The mechanism of claim 1, wherein the anti-rotation mechanism comprises an anti-rotation groove or an anti-rotation protrusion arranged on the inner wall of the second limiting portion, and an anti-rotation protrusion or an anti-rotation groove arranged on the support rod, the anti-rotation protrusion can slide up and down in the anti-rotation groove, the anti-rotation groove is provided with a plurality of anti-rotation protrusions, the anti-rotation protrusions are matched with the anti-rotation grooves in number and positions, and the inner side wall of the anti-rotation groove is abutted against the anti-rotation protrusions to realize anti-rotation.
8. The mechanism of claim 7, wherein the first limiting portion is a non-circular limiting block disposed on the bottom surface of the supporting base, the anti-rotation protrusion is disposed on the supporting rod, the anti-rotation groove is disposed on the second limiting portion, the anti-rotation groove penetrates through the second limiting portion in the height direction of the second limiting portion, and the side wall of the anti-rotation groove abuts against the limiting block to block the first limiting portion from rotating.
9. The mechanism of claim 1, wherein a downward rotating rod is fixed to the lower portion of the supporting seat, the rotating rod is located in the middle of the first limiting portion, the supporting rod is cylindrical, a bearing is fixed to the inner wall of the upper end of the supporting rod, and the rotating rod is fixed to the inner ring of the bearing.
10. A trolley is characterized by comprising a seat, an underframe, wheels, a diagonal brace connected to the underframe and the rotary mechanism capable of limiting as claimed in any one of claims 1 to 9, wherein the lower end of the support rod is provided with a diagonal brace connecting part fixedly connected with the diagonal brace, the diagonal brace connecting part is integrally formed with the lower half part of the support rod, and the diagonal brace connecting part is in a sleeve shape and sleeved on the diagonal brace; the seat may be mounted directly or indirectly on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921482159.6U CN210707584U (en) | 2019-09-07 | 2019-09-07 | Rotary mechanism capable of limiting and trolley using rotary mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921482159.6U CN210707584U (en) | 2019-09-07 | 2019-09-07 | Rotary mechanism capable of limiting and trolley using rotary mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210707584U true CN210707584U (en) | 2020-06-09 |
Family
ID=70966914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921482159.6U Expired - Fee Related CN210707584U (en) | 2019-09-07 | 2019-09-07 | Rotary mechanism capable of limiting and trolley using rotary mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210707584U (en) |
-
2019
- 2019-09-07 CN CN201921482159.6U patent/CN210707584U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |