CN219339544U - Push rod structure of trolley - Google Patents
Push rod structure of trolley Download PDFInfo
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- CN219339544U CN219339544U CN202320712757.8U CN202320712757U CN219339544U CN 219339544 U CN219339544 U CN 219339544U CN 202320712757 U CN202320712757 U CN 202320712757U CN 219339544 U CN219339544 U CN 219339544U
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Abstract
The utility model relates to the technical field of carts, in particular to a push rod structure of a cart, which comprises a rod barrel arranged on a cart body, a telescopic rod with one end arranged in the rod barrel and a handle arranged at the other end of the telescopic rod, wherein a first limit sleeve and a second limit sleeve are sequentially arranged on the inner wall of the rod barrel from inside to outside, the inner diameter of the second limit sleeve is smaller than that of the first limit sleeve, a limit seat is arranged at the inner end of the telescopic rod, a limit ring sleeve is arranged on the outer wall of one end, fixed with the telescopic rod, of the limit seat, a limit ring groove is arranged on the outer wall of one end, fixed with the telescopic rod, the inner diameter of the first limit sleeve is matched with the size of the limit ring groove, the outer diameter of the second limit sleeve is matched with the inner diameter of the limit ring sleeve, the telescopic rod of the structure is labor-saving when being pulled out and retracted, and the telescopic rod is pushed after being pulled out, so that the telescopic rod is stable and reliable, and the problem of shaking caused by stress is effectively avoided.
Description
Technical Field
The utility model relates to the technical field of carts, in particular to a push rod structure of a cart.
Background
The cart is a common use article for infants of 0-6 years old, has the characteristics of small size, portability, labor saving pushing and convenient storage, wherein a hand-pushed handle is connected with a frame through a push rod structure, and is pulled out when in use, retracted when in storage, and quite convenient to use.
The push rod is of a telescopic rod structure, friction force is large when a fit clearance is tight, the telescopic rod is hard to pull out and retract, friction force is small when the fit clearance is loose, the telescopic rod is labor-saving when pulled out and retract, and the phenomenon of shaking instability can occur when pushing.
Disclosure of Invention
The utility model aims to solve the problems, and provides a push rod structure of a trolley, which is labor-saving when a telescopic rod is pulled out and retracted, and is stable and reliable when the telescopic rod is pushed after being pulled out, so that the problem of forced shaking of the telescopic rod is effectively avoided.
The technical scheme includes that the push rod structure of the trolley comprises a rod barrel arranged on a trolley body, a telescopic rod with one end arranged in the rod barrel and a handle arranged at the other end of the telescopic rod, wherein a first limit sleeve and a second limit sleeve are sequentially arranged on the inner wall of the rod barrel from inside to outside, the inner diameter of the second limit sleeve is smaller than that of the first limit sleeve, a limit seat is arranged at the inner end of the telescopic rod, a limit ring sleeve is arranged on the outer wall of the telescopic rod, a limit ring groove is arranged on the outer wall of one end, fixed with the telescopic rod, of the limit seat, the inner diameter of the first limit sleeve is matched with the size of the limit ring groove, and the outer diameter of the second limit sleeve is matched with the inner diameter of the limit ring sleeve.
The clamping structure comprises a clamping hole arranged on the rod cylinder, a sliding column arranged in the clamping hole in a sliding manner, a clamping groove arranged on the outer wall of the limiting seat, a jacking column arranged in the clamping groove and a spring, wherein one end of the spring is fixed at the bottom of the clamping groove, the other end of the spring is fixed with the jacking column, the outer diameter of the jacking column is smaller than the inner diameter of the clamping hole, the clamping groove corresponds to the clamping hole, and the jacking column is propped against the sliding column in the clamping hole by means of the spring.
The periphery of the sliding column is provided with an annular clamping groove, a ring plate is arranged in the clamping hole, the periphery of the ring plate is fixed on the inner wall of the clamping hole, and the inner periphery of the ring plate is embedded into the annular clamping groove.
The limiting seat is provided with a groove matched with the telescopic rod at the center of one end corresponding to the telescopic rod, and the inner end of the telescopic rod is embedded into the groove.
The inner end of the second limiting sleeve is provided with a guiding inclined plane which inclines inwards.
The first limit sleeve and the second limit sleeve are of an integrated structure.
The push rod structure of the trolley has the beneficial effects that the outer diameter of the telescopic rod is smaller than the inner diameter of the rod barrel, the outer wall of the telescopic rod is not attached to the inner wall of the rod barrel, friction force generated when the telescopic rod is pulled out and pushed back is small, the push rod structure is very labor-saving to use, when the telescopic rod is pulled out to a preset position, the preset position refers to the longest position of the telescopic rod which can extend out, the first limiting sleeve is embedded into the limiting ring groove on the limiting seat, tight fit is realized, the second limiting sleeve is attached to the limiting ring sleeve, tight fit is realized, the telescopic rod is clamped, and positioning of the telescopic rod is realized.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model in a contracted state;
fig. 2 is a schematic view of the structure of the stretched state of the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
In the drawing, 1, a pole barrel, 2, a telescopic rod, 3, a handle, 4, a first limit sleeve, 5, a second limit sleeve, 6, a limit seat, 7, a limit ring sleeve, 8, a limit ring groove, 9, a slide column, 10, a clamping groove, 11, a top column, 12, a spring, 13, a ring plate, 14 and a guide inclined plane.
Detailed Description
As shown in fig. 1-3, the utility model provides a push rod structure of a trolley, which comprises a rod barrel 1 arranged on a trolley body, a telescopic rod 2 with one end arranged in the rod barrel 1 and a handle 3 arranged at the other end of the telescopic rod 2, wherein a first limit sleeve 4 and a second limit sleeve 5 are sequentially arranged on the inner wall of the rod barrel 1 from inside to outside, the inner diameter of the second limit sleeve 5 is smaller than that of the first limit sleeve 4, a limit seat 6 is arranged at the inner end of the telescopic rod 2, a limit ring sleeve 7 is arranged on the outer wall of one end, fixed with the telescopic rod 2, of the limit seat 6, a limit ring groove 8 is arranged on the outer wall of one end, fixed with the telescopic rod 2, the inner diameter of the first limit sleeve 4 is matched with the size of the limit ring groove 8, and the outer diameter of the second limit sleeve 5 is matched with the inner diameter of the limit ring sleeve 7.
The limiting ring sleeve 7 and the limiting seat 6 are further fixed on the telescopic rod 2 through bolts or rivets, the outer diameter of the telescopic rod 2 is smaller than the inner diameter of the rod barrel 1, the outer wall of the telescopic rod 2 is not attached to the inner wall of the rod barrel 1, friction cannot be generated when the telescopic rod 2 is pulled out and pushed back, the telescopic rod 2 is very labor-saving, a hollow cylindrical structure is adopted, the telescopic rod is lighter, when the telescopic rod 2 is pulled out to a preset position, the preset position refers to the longest position of the telescopic rod 2, the first limiting sleeve 4 is embedded into the limiting ring groove 8 on the limiting seat 6, tight fit is achieved, the second limiting sleeve 5 is attached to the limiting ring sleeve 7, tight fit is achieved, the telescopic rod 2 is clamped, and positioning of the telescopic rod 2 is achieved.
As shown in fig. 1-3, the clamping structure is arranged on the rod barrel 1 and comprises a clamping hole arranged on the rod barrel 1, a sliding column 9 arranged in the clamping hole in a sliding manner, a clamping groove 10 arranged on the outer wall of the limiting seat 6, a jacking column 11 and a spring 12 arranged in the clamping groove 10, one end of the spring 12 is fixed at the bottom of the clamping groove 10, the other end of the spring 12 is fixed with the jacking column 11, the outer diameter of the jacking column 11 is smaller than the inner diameter of the clamping hole, the clamping groove 10 corresponds to the clamping hole, and the jacking column 11 jacks the sliding column 9 in the clamping hole by means of the spring 12.
When telescopic link 2 pulls out to predetermineeing the position, jack post 11 gets into the draw-in hole with the help of the thrust of spring 12 to outwards ejecting the slide column 9, further spacing and locking to telescopic link 2's position through jack post 11 and draw-in hole cooperation, when telescopic link 2 needs to be retrieved, manual push down slide column 9 jack post 11 of pushing up and retract, push back telescopic link 2 simultaneously, accomplish telescopic link 2's the withdrawal, lock telescopic link 2 through the screens structure, improve telescopic link 2's spacing intensity, can not fall back by oneself after guaranteeing telescopic link 2 atress.
As shown in fig. 1-3, the outer periphery of the sliding column 9 is provided with an annular clamping groove, a ring plate 13 is arranged in the clamping hole, the outer periphery of the ring plate 13 is fixed on the inner wall of the clamping hole, and the inner periphery of the ring plate 13 is embedded into the annular clamping groove.
The slide column 9 is embedded into the clamping hole and is limited through the annular plate 13, the slide column 9 is prevented from falling out of the clamping hole after being stressed, the width of the annular clamping groove of the slide seat 9 is more than 2 times of the thickness of the annular plate, the slide of the slide column 9 is not hindered, and the sliding distance of the slide column 9 can be limited.
As shown in fig. 1-3, a groove matched with the telescopic rod 2 is formed in the center of one end of the limiting seat 6 corresponding to the telescopic rod 2, and the inner end of the telescopic rod 2 is embedded into the groove.
The telescopic link 2 is embedded into the recess of spacing seat 6 central point and is fixed in the joint, still can further fix spacing seat 6 and telescopic link 2 through bolt or rivet, and fixed mode is simple effective, makes things convenient for the installation of spacing seat 6.
As shown in fig. 1-3, the inner end of the second stop collar 5 is provided with an inwardly inclined guiding inclined plane 14.
The guide inclined plane 14 can guide the limiting seat 6 and the limiting collar 7 when the telescopic rod 2 is pulled out, so that the problem that the telescopic rod 2 cannot be pulled out due to the fact that the end faces of the limiting collar 7 and the second limiting collar 5 are directly propped against each other is avoided.
As shown in fig. 1-3, the first stop collar 4 and the second stop collar 5 are in an integral structure.
The first limit sleeve 4 and the second limit sleeve 5 of the integrated structure are convenient to install and high in strength.
Claims (6)
1. The utility model provides a shallow push rod structure, includes pole section of thick bamboo (1) that sets up on the shallow automobile body, telescopic link (2) that one end set up in pole section of thick bamboo (1) and handle (3) of setting at the telescopic link (2) other end, its characterized in that: the novel telescopic rod is characterized in that a first limit sleeve (4) and a second limit sleeve (5) are sequentially arranged on the inner wall of the rod barrel (1) from inside to outside, the inner diameter of the second limit sleeve (5) is smaller than that of the first limit sleeve (4), a limit seat (6) is arranged at the inner end of the telescopic rod (2), a limit ring sleeve (7) is arranged on the outer wall of the telescopic rod (2), a limit ring groove (8) is arranged on the outer wall of one end, fixed to the telescopic rod (2), of the limit seat (6), the inner diameter of the first limit sleeve (4) is matched with the size of the limit ring groove (8), and the outer diameter of the second limit sleeve (5) is matched with the inner diameter of the limit ring sleeve (7).
2. A push rod structure of a cart according to claim 1, wherein: the clamping structure is arranged on the rod barrel (1), and comprises a clamping hole arranged on the rod barrel (1), a sliding column (9) arranged in the clamping hole in a sliding manner, a clamping groove (10) arranged on the outer wall of the limiting seat (6), a jacking column (11) and a spring (12) arranged in the clamping groove (10), one end of the spring (12) is fixed to the bottom of the clamping groove (10), the other end of the spring is fixed to the jacking column (11), the outer diameter of the jacking column (11) is smaller than the inner diameter of the clamping hole, the clamping groove (10) corresponds to the clamping hole, and the jacking column (11) jacks the sliding column (9) in the clamping hole by means of the spring (12).
3. A push rod structure of a cart according to claim 2, characterized in that: the sliding column is characterized in that an annular clamping groove is formed in the periphery of the sliding column (9), a ring plate (13) is arranged in the clamping hole, the periphery of the ring plate (13) is fixed on the inner wall of the clamping hole, and the inner periphery of the ring plate (13) is embedded into the annular clamping groove.
4. A push rod structure of a cart according to claim 1, wherein: the limiting seat (6) and the telescopic rod (2) are provided with grooves matched with the telescopic rod (2) at the center of one end, and the inner ends of the telescopic rods (2) are embedded into the grooves.
5. A push rod structure of a cart according to claim 1, wherein: the inner end of the second limiting sleeve (5) is provided with a guiding inclined surface (14) inclined inwards.
6. A push rod structure of a cart according to claim 1, wherein: the first limit sleeve (4) and the second limit sleeve (5) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320712757.8U CN219339544U (en) | 2023-04-03 | 2023-04-03 | Push rod structure of trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320712757.8U CN219339544U (en) | 2023-04-03 | 2023-04-03 | Push rod structure of trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219339544U true CN219339544U (en) | 2023-07-14 |
Family
ID=87077627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320712757.8U Active CN219339544U (en) | 2023-04-03 | 2023-04-03 | Push rod structure of trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219339544U (en) |
-
2023
- 2023-04-03 CN CN202320712757.8U patent/CN219339544U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |