CN201102558Y - Rear wheel steering barrow with synthetic brake function - Google Patents
Rear wheel steering barrow with synthetic brake function Download PDFInfo
- Publication number
- CN201102558Y CN201102558Y CNU2007201726336U CN200720172633U CN201102558Y CN 201102558 Y CN201102558 Y CN 201102558Y CN U2007201726336 U CNU2007201726336 U CN U2007201726336U CN 200720172633 U CN200720172633 U CN 200720172633U CN 201102558 Y CN201102558 Y CN 201102558Y
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- wheel
- wheel seat
- clutch part
- brake function
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Abstract
A rear wheel direction changing trolley which is provided with the comprehensive braking function includes a main frame (10), a hand-pushing (20), wheels (30) and wheel seats (50). The wheel seat (50) includes an upper wheel seat (53), a lower wheel seat (51) and a shaft (52). A wheel braking device (40) is arranged between rear wheels (32) and the wheel seat (50). An engaging and disengaging gear (60) is arranged between the upper wheel seat (53) and the lower wheel seat (51). A control bar (62) in the engaging and disengaging gear (60) is connected with the wheel braking device (40) and controls the locking and the unlocking of the wheel retaining device (40). The utility model changes the problem that the braking device of a traditional trolley can not be installed on a direction changing wheel and is especially beneficial to baby strollers. The rear wheel direction changing trolley which is provided with the comprehensive braking function can realize the braking through changing the direction of the wheels, can stop the wheels simultaneously and has the advantages of convenient using and good braking effect.
Description
Technical field the utility model relates to transportation means, particularly conveys goods or manned hutching.
The existing hand barrow of background technology is general to adopt simple embrace or truck wheel, wheel shaft mode brake, and all there is mechanism's complexity in these two kinds of brakes, the cost height, and, because long-time the use, exist situation such as component wear inefficacy to take place inevitably.Also have, adopt this two kinds of brake modes, then must be set to front-wheel by the break-in wheel,,, can not realize the effect of braking owing to after the wheel break-in, cause the brake gear position to not going up if be arranged on trailing wheel.The inventor has also designed a kind of hand barrow that utilizes the trailing wheel translation-angle to reach the brake purpose, this scheme utilization is fixed as interior or outer " eight " font with trailing wheel, reach the purpose of brake, but, though this brake gear can have very convenient brake, the advantage of long service life, but, do not exist yet and can not realize stop wheel itself, so, in some areas to the security requirement strictness, this hand barrow can't reach the requirement of safety, in addition, owing in braking procedure, two trailing wheels that are in parastate be pulled back " eight " word state firmly, strength to brake system requires than higher, also causes the heavy and drawback higher to part requirement of mechanism.
Utility model content the utility model provides a kind of trailing wheel break-in hand barrow with comprehensive brake function, employing is in the stop trailing wheel, the following wheel seat of locking trailing wheel, not only can realize utilizing the purpose of wheel angle braking, but also brake wheel simultaneously, satisfy the requirement of each department safety, solve braking effect in the prior art bad, use inconvenience and mechanism's complexity, technical matters that cost is high.
The scheme that the utility model solves the problems of the technologies described above is, design a kind of trailing wheel break-in hand barrow with comprehensive brake function, comprise main car frame, be arranged at the pushing hands of main car frame one end and at least three and be connected in the main car frame bottom and be divided into the wheels that two rows are provided with, the trailing wheel of pushing hands one end setting is connected in main car frame by wheel seat in the described wheel, this wheel seat comprises the last wheel seat that is fixedly arranged on the main car frame, connects the following wheel seat of wheel shaft and the rotating shaft of hinged upper and lower wheel seat; Between described trailing wheel and wheel seat, be provided with the wheel stop motion mechanism; Described going up between wheel seat and the following wheel seat is provided with arrangement of clutch, this arrangement of clutch comprise be movably connected on wheel seat and with the active clutch part of last wheel seat radial location, be fixedly arranged on down passive clutch part and control stalk and control handle on the wheel seat, described active clutch part and control handle all are connected on the control stalk; Control stalk in the described arrangement of clutch connects the wheel stop motion mechanism, and the locking and the release of control wheel stop motion mechanism.The utility model in use, if desired brake or with vehicle stationary when the original place, can control control handle, make its action, the arrangement of clutch that utilization is provided with between last wheel seat and following wheel seat is realized the locking to wheel seat under the wheel, so when realizing wheel stop, direction to wheel also realizes locking, reaches the purpose of brake thus.Because this wheel stop motion mechanism in the scheme is arranged on the following wheel seat of wheel, so, no matter what angle wheel forwards to, can realize wheel stop.This brake system is not subjected to the restriction of any place and time, and is very easy to use, and simple in structure, and parts are not easy to damage the reliability height.
Passive clutch part can adopt and be installed in two grooves with V-arrangement opening of rotating shaft cover end face, the V-arrangement opening of these two grooves links to each other and is provided with, described active clutch part is the projection that is fixedly arranged on the control stalk upper end, respectively is provided with intilted inclined-plane on described projection two end faces radially.Or adopt and to be arranged on rotating shaft and to put the first continuous end face tooth, the profile of tooth of the first end face tooth is up-small and down-big shape; Described active clutch part is the second end face tooth that can be meshed with the first end face tooth.Again or adopt a plurality of shrinkage pools that are provided with in the same radial line rule in rotating shaft cover end face upper edge, each shrinkage pool top has the V-arrangement enlarging, the limit of described each shrinkage pool V-arrangement enlarging links to each other, described active clutch part is to insert the corresponding projection in shrinkage pool position with rotating shaft cover end face, and the top of described projection is round end or tip.
After the utility model adopts above-mentioned design plan, traditional hand barrow brake equipment can be changed and the problem that break-in is taken turns can not be installed in, thereby the break-in wheel can be arranged on the trailing wheel of hand barrow, this design is especially to the perambulator advantageous particularly, perambulator is turned to conveniently, turn radius is little, and, also make things convenient for the mother original place to shake perambulator.Adopted comprehensive brake system of the present utility model, not only can utilize and change wheel direction realization braking, and can make wheel stop simultaneously, like this, just trailing wheel need not be pulled back firmly " eight " font, no matter trailing wheel is how angle can realize car brakeing, very easy to use, good braking effect, and, simple in structure, cost is low.For existing hand barrow, needn't transform structure on the whole, just can achieve the goal convenient the use as long as change trailing wheel.
Description of drawings
Fig. 1 is that the master with comprehensive brake function trailing wheel break-in hand barrow looks partial schematic sectional view.
Fig. 2 is the local enlarged diagram that adopts the V-arrangement open recess.
Fig. 3 adopts the tooth-like local enlarged diagram of end face.
Fig. 4 is the local enlarged diagram that adopts dimple.
The specific embodiment is in conjunction with above-mentioned description of drawings various embodiment of the present utility model.
By among Fig. 1 as can be known, a kind of trailing wheel break-in hand barrow with comprehensive brake function, comprise main car frame 10, be arranged at the pushing hands 20 of main car frame 10 1 ends and at least three and be connected in main car frame 10 bottoms and be divided into the wheels 30 that two rows are provided with, the trailing wheel 32 of pushing hands one end setting is connected in main car frame 10 by wheel seat 50 in the described wheel 30, this wheel seat 50 comprises the last wheel seat 53 that is fixedly arranged on the main car frame 10, connects the following wheel seat 51 of wheel 30 axletrees 33 and the rotating shaft 52 of hinged upper and lower wheel seat 53,51; Between described trailing wheel 32 and wheel seat 50, be provided with wheel stop motion mechanism 40; Described going up between wheel seat 53 and the following wheel seat 51 is provided with arrangement of clutch 60, this arrangement of clutch 60 comprise be movably connected on wheel seat 53 and with the active clutch part 61 of last wheel seat 53 radial locations, be fixedly arranged on down passive clutch part 63 and control stalk 62 and control handle 64 on the wheel seat 51, described active clutch part 61 and control handle 64 all are connected on the control stalk 62; Control stalk 62 in the described arrangement of clutch 60 connects wheel stop motion mechanism 40, and the locking and the release of control wheel stop motion mechanism 40.The utility model in use, if desired brake or with vehicle stationary when the original place, can control position brake device 40, make its action, this position brake device 40 with in the wheel of vehicle 30 on a row going direction changing of two wheels, make its interior " eight " word shape layout of inside harvest respectively, perhaps respectively to extend out constitute outside " eight " word shape layout, because these two wheels 30 have formed " eight " word layout, so, formed the relation of mutual restriction, and form the relation of mutual restriction too with other wheel 30, which direction no matter vehicle will move to this moment, all needs to overcome the repose resistance of at least two wheels, and vehicle can be braked in the original place well.And the brake that this conversion wheel angle is carried out is not subjected to the restriction of any place and time, and is very easy to use, and simple in structure, and parts are not easy to damage the reliability height.
By among Fig. 2 as can be known, described control stalk 62 be arranged in parallel with rotating shaft 52, between last wheel seat 53 and following wheel seat 51, slide up and down, described active clutch part 61 and control handle 64 are connected in the upper end of control stalk 62, described passive clutch part 63 is positioned at the lower end of this control stalk 62, is provided with restoring spring 56 between described active clutch part 61 and the following wheel seat 51.Glancing impact, control handle 64 control control stalks 62 are descending, and driving initiatively, clutch part 61 is affixed to passive clutch part 63, until closely both combinations, because initiatively clutch part 61 is radial locations with last wheel seat 53, so, passive clutch part 63 is also radially fixed, and the wheel angle also is fixed.
By among Fig. 2 to Fig. 4 as can be known, described down wheel seat 51 extends upward and is provided with the rotating shaft cover 511 concentric with rotating shaft 52.
By among Fig. 2 as can be known, described passive clutch part 63 is to be installed in rotating shaft to overlap the groove 631 that two of 511 end faces have the V-arrangement opening, the V-arrangement opening of these two grooves 631 links to each other and is provided with, described active clutch part 61 respectively is provided with intilted inclined-plane for being fixedly arranged on the projection 611 of control stalk 62 upper ends on described projection 611 two end faces radially.Passive clutch part 63 is the grooves 631 with V-arrangement opening in this programme, glancing impact, control handle 64 control control stalks 62 are descending, driving initiatively, clutch part 61 is affixed to passive clutch part 63, initiatively the projection 611 of clutch part 61 moves down along the V-arrangement opening of groove 631, in the process that projection 611 presses down, the inclined-plane of the V-arrangement opening by groove 631, wheel is pulled desirable angle, for example: two were " eight " font afterwards, so just can utilize this special angle of wheel to realize braking, in the time of in projection 611 falls into groove 631, wheel also is on the desirable angle, also is fixed on this angle.
By among Fig. 3 as can be known, the profile of tooth that described passive clutch part 63 is arranged on the first end face tooth, 632, the first end face teeth 632 continuous on the rotating shaft cover 511 is up-small and down-big shape; Described active clutch part 61 is the second end face teeth 612 that can be meshed with the first end face tooth 632.The profile of tooth of the described first end face tooth 632 and the second end face tooth 612 is triangle, involute shape or circular arc; The tooth top of the first end face tooth 632 and the second end face tooth 612 is circular arc or tip shape.This scheme is to utilize the engagement of contrite gear, realize the function of clutch, work as glancing impact, control handle 64 control control stalks 62 are descending, driving initiatively, clutch part 61 is affixed to passive clutch part 63, initiatively the second end face tooth 612 of clutch part 61 meshes with the first end face tooth 632 of passive clutch part 63, reach the fixing effect of wheel seat 51 down, adopt the tooth-like arrangement of clutch of this end face, wheel can be pulled certain angle, can fix wheel seat 51 down at any time, cooperate the stop of wheel like this, just can realize vehicle braked.
By among Fig. 4 as can be known, described passive clutch part 63 is to overlap a plurality of shrinkage pools 633 that the same radial line rule in 511 end face upper edges is provided with in rotating shaft, each shrinkage pool 633 top has the V-arrangement enlarging, the limit of described each shrinkage pool 633V shape enlarging links to each other, described active clutch part 61 is to overlap 511 end faces with rotating shaft to insert the corresponding projection 613 in shrinkage pool 633 positions, and the top of described projection 613 is round end or tip.The principle of this scheme is apparent in view, glancing impact, and initiatively the projection 613 of clutch part 61 inserts in a plurality of shrinkage pools 633 of passive clutch part 63, realizes the effect of braking.
By among Fig. 3 as can be known, described control handle 64 is articulated on the wheel seat 53, this control handle 64 is provided with elasticity location stop 641, the described wheel seat 53 of going up is provided with the locating groove 531 that elasticity location stop 641 is partially submerged into.When control handle 64 was pulled assigned address, elasticity location stop 641 embedded in the locating groove 531, has played the effect of locking, prevents control handle 64 resiliences.
By among Fig. 3 as can be known, described wheel stop motion mechanism 40 comprises the profile of tooth piece 41 that is installed on the wheel, the centre is hinged on down the driving lever 42 on the wheel seat 51, these driving lever 42 heads are provided with the fixture block 421 that can embed profile of tooth piece 41 between cog, its end joint connection control stalk 62.Glancing impact, control handle 64 control control stalks 62 are descending, play under the locking in the wheel seat 51 at arrangement of clutch 60, and the fixture block 421 of driving lever 42 heads embeds profile of tooth pieces 41 between cog, play the effect of wheel stop, so just can realize the synthetical restraint effect of wheel angle locking and wheel lock.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. trailing wheel break-in hand barrow with comprehensive brake function, comprise main car frame (10), be arranged at the pushing hands (20) of main car frame (10) one ends and at least three and be connected in main car frame (10) bottom and be divided into the wheels (30) that two rows are provided with, the trailing wheel (32) that pushing hands one end is provided with in the described wheel (30) is connected in main car frame (10) by wheel seat (50), this wheel seat (50) comprises the last wheel seat (53) that is fixedly arranged on the main car frame (10), connect the following wheel seat (51) of wheel (30) axletree (33) and the rotating shaft (52) of hinged upper and lower wheel seat (53,51); Between described trailing wheel (32) and wheel seat (50), be provided with wheel stop motion mechanism (40); It is characterized in that: described going up between wheel seat (53) and the following wheel seat (51) is provided with arrangement of clutch (60), this arrangement of clutch (60) comprise be movably connected on wheel seat (53) and with the active clutch part (61) of last wheel seat (53) radial location, be fixedly arranged on down passive clutch part (63) and control stalk (62) and control handle (64) on the wheel seat (51), described active clutch part (61) and control handle (64) all are connected on the control stalk (62); Control stalk (62) in the described arrangement of clutch (60) connects wheel stop motion mechanism (40), and the locking and the release of control wheel stop motion mechanism (40).
2. according to the described trailing wheel break-in hand barrow of claim 1 with comprehensive brake function, it is characterized in that: described control stalk (62) be arranged in parallel with rotating shaft (52), between last wheel seat (53) and following wheel seat (51), slide up and down, described active clutch part (61) and control handle (64) are connected in the upper end of control stalk (62), and described passive clutch part (63) is positioned at the lower end of this control stalk (62).
3. according to the described trailing wheel break-in hand barrow of claim 2, it is characterized in that: be provided with restoring spring (56) between described active clutch part (61) and the following wheel seat (51) with comprehensive brake function.
4. according to the described trailing wheel break-in hand barrow with comprehensive brake function of claim 2, it is characterized in that: described wheel seat (51) down extends upward and is provided with the rotating shaft cover (511) concentric with rotating shaft (52).
5. according to the described trailing wheel break-in hand barrow of claim 4 with comprehensive brake function, it is characterized in that: described passive clutch part (63) is to be installed in the groove (631) that two of rotating shaft cover (511) end faces have the V-arrangement opening, the V-arrangement opening of these two grooves (631) links to each other and is provided with, described active clutch part (61) respectively is provided with intilted inclined-plane for being fixedly arranged on the projection (611) on the control stalk (62) on described projection (611) two end faces radially.
6. according to the described trailing wheel break-in hand barrow of claim 4 with comprehensive brake function, it is characterized in that: described passive clutch part (63) is arranged on rotating shaft cover (511) and goes up the first continuous end face tooth (632), and the profile of tooth of the first end face tooth (632) is up-small and down-big shape; Described active clutch part (61) is the second end face tooth (612) that can be meshed with the first end face tooth (632).
7. according to the described trailing wheel break-in hand barrow of claim 4 with comprehensive brake function, it is characterized in that: described passive clutch part (63) is a plurality of shrinkage pools (633) that same radial line rule is provided with in rotating shaft cover (511) end face upper edge, each shrinkage pool (633) top has the V-arrangement enlarging, the limit of described each shrinkage pool (633) V-arrangement enlarging links to each other, described active clutch part (61) is to insert the corresponding projection in shrinkage pool (633) position (613) with rotating shaft cover (511) end face, and the top of described projection (613) is round end or tip.
8. according to the described trailing wheel break-in hand barrow with comprehensive brake function of claim 6, it is characterized in that: the profile of tooth of the described first end face tooth (632) and the second end face tooth (612) is triangle, involute shape or circular arc; The tooth top of the first end face tooth (632) and the second end face tooth (612) is circular arc or tip shape.
9. according to the described trailing wheel break-in hand barrow of claim 6 with comprehensive brake function, it is characterized in that: described control handle (64) is articulated on the wheel seat (53), this control handle (64) is provided with elasticity location stop (641), and the described wheel seat (53) of going up is provided with the locating groove (531) that elasticity location stop (641) is partially submerged into.
10. according to the described trailing wheel break-in hand barrow of claim 1 with comprehensive brake function, it is characterized in that: described wheel stop motion mechanism (40) comprises the profile of tooth piece (41) that is installed on the wheel, the centre is hinged on down the driving lever (42) on the wheel seat (51), this driving lever (42) head is provided with the fixture block (421) that can embed profile of tooth piece (41) between cog, its end joint connection control stalk (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201726336U CN201102558Y (en) | 2007-10-23 | 2007-10-23 | Rear wheel steering barrow with synthetic brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201726336U CN201102558Y (en) | 2007-10-23 | 2007-10-23 | Rear wheel steering barrow with synthetic brake function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102558Y true CN201102558Y (en) | 2008-08-20 |
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ID=39949580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201726336U Expired - Fee Related CN201102558Y (en) | 2007-10-23 | 2007-10-23 | Rear wheel steering barrow with synthetic brake function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102558Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113439967A (en) * | 2021-07-02 | 2021-09-28 | 湖北工业大学 | Prevent multi-functional baby chair of displacement |
| CN113993764A (en) * | 2019-11-08 | 2022-01-28 | 创科无线普通合伙 | Electric handcart |
-
2007
- 2007-10-23 CN CNU2007201726336U patent/CN201102558Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113993764A (en) * | 2019-11-08 | 2022-01-28 | 创科无线普通合伙 | Electric handcart |
| CN113993764B (en) * | 2019-11-08 | 2023-12-19 | 创科无线普通合伙 | Electric handcart |
| CN113439967A (en) * | 2021-07-02 | 2021-09-28 | 湖北工业大学 | Prevent multi-functional baby chair of displacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20121023 |