CN1064446A - Four-wheel hand-cart brake and directional device for wheel - Google Patents
Four-wheel hand-cart brake and directional device for wheel Download PDFInfo
- Publication number
- CN1064446A CN1064446A CN 91101210 CN91101210A CN1064446A CN 1064446 A CN1064446 A CN 1064446A CN 91101210 CN91101210 CN 91101210 CN 91101210 A CN91101210 A CN 91101210A CN 1064446 A CN1064446 A CN 1064446A
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- slide block
- lifting shaft
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Abstract
The brake and the directional device for wheel of the relevant a kind of four-wheeled hand truck of the present invention, it is divided into four strands of branch lines with a brake cable, and the brake system of per share line control one wheel is to realize each wheel of synchronous braking.Again, the present invention handles four wheels respectively one by one and realizes directional operation with four wheel direct lines.
Description
The present invention relates to four-wheel hand-cart brake and directional device for wheel.
The present unpowered hand push vehicle of four-wheel, use very extensive, for example: sick bed, the employed go-cart in supermarket, baby stroller, transport trolleys ... Deng, it is the uneven and situation of slipping voluntarily of Chang Fashengyin surface slope in the use, so easily cause accident, the lighter's go-cart meeting collision people or thing, weight person's go-cart be because of sliding to road central authorities voluntarily, and smashed by car.No matter which kind of loss or injury, all moderns are worried can't bear.When go-cart will stop to advance, but braking brake is checked vehicle, yet this braking action only can be checked two-wheeled, and two-wheeled still can rotate in addition, and car body can be the center with the wheel of checking, and because of two-wheeled is free to rotate in addition, and make the car body rotation.So very difficult assurance does not meet accident.
In addition, above-mentioned go-cart does not mostly have the design of wheel orientation, only is the two-wheeled orientation even have yet, but go-cart is when mobile on the slope, and people must apply bigger strength and prevent that go-cart from making oblique course, even can cause the straightaway that can't do to expect.
The present invention be directed to the shortcoming of aforementioned hand push vehicle and inconvenience and design-calculated, but have the four-wheel synchronous brake, with four-wheel can directed one by one function, to increase safety and the convenience that uses.
The present invention can a brake cable operate the four-wheel synchronous brake, and this brake cable can be divided into four strands of branch lines, the brake system of a wheel of per share branch line braking.This brake system comprises a slide block and a lifting shaft, and this lifting shaft lower end is brake shoes or brake lever fixedly.This slide block is subjected to the brake cable drawing, has a pressure-proof spring and makes slide block that compressive resistance be arranged; And these slide block both sides are provided with the oblique raised line of symmetry, and this lifting shaft first half is provided with the permission slide block in the conduit that wherein moves; When brake cable was loosened, slide block retreated automatically, and then lifting shaft is forced to descend naturally, and made brake shoes or brake lever effect and check wheel.
The present invention controls the orientation of four wheels respectively one by one with four direct lines, this direct line braking one orientation system of taking turns, this orientation system comprises a slide block and a lifting shaft, this slide block is with a direct line drawing, and slide block borrows a spring to make it to have stretching resistance, and the routing motion mode of this slide block and lifting shaft is just like brake system, and its lifting shaft lower end is provided with a projection, this projection is descended enter the rotary seat of wheel, and rotary seat can't be rotated and orientation.
If the present invention is when being applied to taller and bigger go-cart (as sick bed), and these wheels can be directly fixed on the frame pipe lower ends at four end angles, and then brake system and orientation system adopt and directly draw, put the mode of lifting shaft, and no longer use slide block.
Figure 1A is an External view of the present invention;
Figure 1B is a wheel carrier configuration schematic diagram of the present invention;
Fig. 2 A is the External view of wheel carrier of the present invention;
Fig. 2 B is the central sectional side elevation of Fig. 2 A;
Fig. 2 C is the eccentric sectional side elevation of Fig. 2 A;
Fig. 3 is the assembly drawing of wheel carrier top shoe of the present invention and lifting shaft;
Fig. 4 A is the External view of the another kind of wheel carrier of the present invention (apply the brakes bar);
Fig. 4 B entreats sectional side elevation among Fig. 4 A;
Fig. 5 A pushes away the constructional drawing of frame for the present invention;
Fig. 5 B and 5C push away the constructional drawing of frame leg for the present invention;
Fig. 5 D pushes away the lateral plan of frame locating dowel pin for the present invention;
Fig. 6 pushes away the brake system constructional drawing of leg below, a frame left side for the present invention;
Fig. 7 is the view of directional operation bar of the present invention;
Fig. 8 is car body of the present invention chassis brake cable, direct line, layout circle;
Fig. 9 is the present invention's use view on one's sick bed;
Figure 10 A, 10B are the present invention's application wheel carrier outward appearance and sectional side elevation on one's sick bed;
Figure 11 A, 11B are the present invention's application wheel carrier on one's sick bed
The outward appearance and the sectional side elevation of (apply the brakes bar).
See also Figure 1A, Figure 1B, be depicted as the embodiment that the present invention is applied in hand barrow, the appropriate location is provided with four wheel carriers (20) at the bottom of car, the outward appearance of this wheel carrier is shown in Fig. 2 A, Fig. 2 B is the cutaway view of the central brake system of this wheel carrier (20), and figure .2C is the cutaway view of wheel carrier (20) position fixing system.This wheel carrier (20) comprises a permanent seat (21) and a rotary seat (22), this rotary seat (22) can be around central siphon (23) rotation of permanent seat (21), the brake system of this wheel carrier (20) comprises a slide block (24) and a lifting shaft (25), this slide block (24) is subjected to a brake cable (30) drawing, and slide block (24) is provided with a pressure-proof spring (26), makes slide block (24) have stretching resistance.See also shown in the figure .3, respectively be provided with to this slide block (24) bilateral symmetry an oblique raised line (27).The seat end of this lifting shaft (25) can be fixed a brake shoes (28), its first half is provided with a conduit (29), this conduit (29) just can allow slide block (24) to move therein, and this conduit (29) comprises that the oblique recessed rail (31) of two symmetries be able to match with the raised line of slide block (27).So the parallel motion of slide block (24) can make lifting shaft (25) do dipping and heaving.
Lifting shaft (25) is risen, and compress this spring (26).When brake cable (30) is loosened, then borrow the compressive resistance of spring (26) that slide block (24) is retreated, then lifting shaft (25) descends, and presses up to the brake shoes (28) of lifting shaft (25) lower end and touches wheel (32), checks till the wheel (32).
If hand barrow is in design so that to carry heavier article be main, can produce bigger momentum when mobile after its loading.If the braking force deficiency of brake shoes (28) can adopt the brake lever structure shown in Fig. 4 A Fig. 4 B.It mainly is at lifting shaft (25) lower end clamping one plate (33), and this plate (33) can rotate around the center, and a ball dish (35) is set between plate (33) and fix screw (34).This plate (33) can connect two brake lever (36), and this brake lever (36) is by a lifting that the pedestal (37) in two holes is arranged with guiding brake lever (36).Again, the extension of central siphon (38) both sides of wheel (32) has several holes (39), when lifting shaft (25) descends, brake lever (36) is descended and stretches in the shrinkage pool (39) of wheel (32) central siphon (38), and check wheel (32).Shrinkage pool (39) quantity of this central siphon (38) can be more than eight or eight.This kind brake modes can produce big brake weight, is particularly useful for large-scale go-cart.
Wheel orientation system of the present invention is made of with the lifting shaft (73) that the lower end is provided with projection (74) a slide block (71) that wears pressure-proof spring (72).This slide block (71) and lifting shaft (73) cooperate with aforementioned brake system in slide block (24) identical with cooperating of lifting shaft (25).This slide block (71) is subjected to a direct line (70) drawing, when direct line (70) when loosening, slide block (71) moves, and when lifting shaft (73) was descended, the projection (74) of this lifting shaft (73) lower end can stretch in the recess (75) on wheel carrier (20) rotary seat (22) and realize directed.Wherein, this rotary seat (22) is gone up and with isogonism four recesses (75) is set.
Consult Fig. 5 A, 5B, 5C, 5D, the two ends that push away frame (40) of the present invention with diaxon (41) and (42) and with car body base (11) pivotal joint, make to push away frame (40) and can rotate for the center around axle (41) (42).Respectively be provided with one and can stretch into car body base (11) and go up locating dowel pin (43) in the hole (18) of the projection (17) that is provided with in that two legs that push away frame (40) are other, overlapping a pressure-proof spring (44) on this orientation pin (43), and be provided with a pull bar (45) on the frame (40) pushing away, this pull bar (45) two ends respectively connect single line (46), this line (46) but this locating dowel pin of drawing (43), when this pull bar of pulling (45), then but drawing locating dowel pin (43) climbs away car body base (11), and then pushing away frame (40) can be to lower swing.
Consult that this pivot (41) that pushes away the left leg of frame (40) (47) is provided with a gear (48) shown in the figure .6, the line of this line wheel (49) is connected with each slide block of taking turns (24) via pulley (50).Be provided with a L type jacking block (51) below pushing away the left leg of frame (40) (47), with a trunnion (25) location, then this jacking block (51) can rotate around trunnion (52) this jacking block (51) around central point of transition.This jacking block (51) top is provided with a stage clip (53), and this stage clip (53) can be with jacking block (51) to pressing down, and end stretches between the teeth of gear (48) under the jacking block and make, and reverses to prevent gear (48).Go up extension one projection (12) at car body (10), also be provided with a L type jacking block (13) on this projection (12), this L type jacking block (13) runs through its central point of transition and makes pivotal joint with a pin (14), and making L type jacking block (13) can be that rotate at the center with pin (14).Be provided with a stage clip (15) in jacking block (13) top, prevent that gear (48) from reversing downwards so that jacking block (13) can stretch between the teeth of gear (48).Establish a tuning-fork-type bar (54) below pushing away the left leg of frame (40) (47), this tuning-fork-type bar (54) has an end of two arms to be articulated in this left side leg (47) top, and the end with an arm draws single line (55) to the top that pushes away frame (40).Again, this tuning-fork-type bar (54) has an arm in the end of two arms to draw single line (56) to L type jacking block (51), another arm stretch on car body (10) projection (12) one can the inverted L shape plate (16) of upper and lower swing in, and this inverted L shape plate (16) connects single line (17) to L type jacking block (13).When the operator with line (55) drawing upwards, then tuning-fork-type bar (54) moves up, and make L type jacking block (51) break away from gear (48), an arm of tuning-fork-type bar (54) can drive upwards pendulum of inverted L shape plate (16) simultaneously, and make another L type jacking block (13) break away from gear (48), gear (48) cease to bind then, then the slide block (24) in each wheel brake system slides because of the restoring force of the pressure-proof spring above it (26), to check wheel (32).If the braking action of wheel (32) will be eliminated, then must spur pull bar (45), make and push away frame (40) formation free state, then can omit swing downwards and push away frame (40), then L type jacking block (51) makes and broadcasts moving gear (48) revolution, with with each slide block (24) drawing once again, and push away frame (40) when upwards replying the L type jacking block (13) at rear withstand gear and prevent to reverse.Can reach the purpose of drawing slide block (24) once again and so forth several times.
The present invention pushes away frame (40) below and is provided with a cross bar (57), and this cross bar (57) is provided with four bodys (58) to assemble the directed joystick (59) of four wheels.See also figure .7, this joystick (59) below connects wheel direct line (70), it runs through a body (58), and this body (58) top is provided with two recesses (60) of symmetry, and with two long grooves (61) that should two recesses (60) vertical interlaced.And this joystick (59) is provided with the projection (62) of two symmetries.When two projections (62) snapped in the recess (60) of body (58), this wheel direct line (70) was subjected to drawing, causes slide block (71) by drawing, and compression pressure-proof spring (72), simultaneously, lifting shaft (73) rises, then wheel (32) is unoriented state, can do 360 ° of rotations.When joystick (59) rotates 90 °, make two projections (62) enter groove (61) when interior, then wheel direct line (70) loses binding force, then the restoring force of pressure-proof spring (72) can promote slide block (71), lifting shaft (73) is descended, cause lifting shaft (73) lower end projection (74) to snap in the recess (75) of wheel revolutions seat (22), with fixing rotary seat (22) and orientation.
The layout circle of chassis brake cable of the present invention (30) and wheel direct line (70) can once be checked four-wheel to reach shown in the figure .8, and can be respectively to each crop rotation directional operation.In actual use, generally be simultaneously to the two-wheeled orientation, rotating, or make the four-wheel orientation, so that diameter.The present invention can only establish in one side and push away frame (40), also can all be provided with at the car body four sides and push away frame (40), so that it can promote, improves the comfort feature that uses on four sides.In use, only make the effect that frame (40) keeps having brake and wheel orientation that pushes away of practical operation, and other brake that pushes away frame (40) of three and wheel directional operation systems all transfer to relaxation state.So each system that pushes away on the frame (40) of operating is played a role.
The present invention is when applying to the higher go-cart in chassis, and as sick bed, its brake system and wheel orientation system can more be simplified.See also figure.Shown in 9, the following of four pillars (81) of this sick bed (80) can be directly with the wheel carrier that is threaded (20), and its brake system is made of a lifting shaft (82) that is with pressure-proof spring (83), the following of this lifting shaft (82) can be provided with brake shoes (84) or brake lever (85) (shown in Figure 10 .A, B and Figure 11 .A, B), and this lifting shaft (82) is directly by above-mentioned brake cable (86) drawing.And the brake cable of four-wheel (86) is pooled to one of sick bed (80) end along the traction of the arm of sick bed (80) and pulls out, and handles its brake with a push rod (87) (as the aforesaid frame (40) that pushes away).In addition, each wheel direct line (88) is to the traction of the arm of upper edge sick bed (80), located to stretch out and handled it by each joystick (89) by tool push rod (87).
The present invention has can a subsynchronous effect of checking four-wheel, so when checking car body, can guarantee that car body can be from line slip.Make go-cart have safety.In addition, the present invention can realize the wheel directional operation, is more convenient for promoting go-cart and does rotation or craspedodrome motion.This kind device and system are highly desirable for unpowered go-cart.
Claims (4)
1, a kind of brake of four-wheeled hand truck and directional device for wheel, the brake system of each wheel can be done synchronous operation by pushing away frame, and each wheel can be made directional operation by the joystick that pushes away on the frame, and each wheel carrier is made up of the rotary seat that a permanent seat and that can be fixed on car body can 360 ° of rotations; Isogonism is provided with four recesses on this rotary seat; Wherein,
The brake system of this wheel carrier, the lifting shaft that is provided with brake shoes or brake lever by a slide block that wears pressure-proof spring and lower end is constituted, this slide block bilateral symmetry ground respectively is provided with an oblique raised line, and this lifting shaft first half is provided with one and coincide with the slide block shape, with the conduit of allowing that slide block moves within it, so that the parallel motion of slide block can drive lifting shaft and do upper and lower action;
The orientation system of this wheel carrier wears the slide block of pressure-proof spring and lifting shaft that a lower end is provided with projection is constituted by one, and the parallel motion of slide block, can drive lifting shaft and do upper and lower motion;
This pushes away frame two leg lower ends and car body pivotal joint, and fixedly make it be in erectility with locating dowel pin, wherein the drive-connecting shaft of left leg is provided with a gear, this gear connects line wheel, this left side leg is provided with a tuning-fork-type bar, the end that this tuning-fork-type bar has two arms is with being pivotally connected on the leg, and the other end draws a line to pushing away the frame top; The arm that this tuning-fork-type bar has an end of two arms draws single line downwards and draws one with the L type jacking block of pivotal joint on leg, and this jacking block top is provided with a stage clip, and the jacking block lower end is embedded in the teeth of gear; In addition, another arm that this tuning-fork-type bar has an end of two arms stretches in the inverted L shape plate of a usefulness pivotal joint on car body, this inverted L shape plate draws a line downwards and draws one above this jacking block a stage clip to be set with the L type jacking block of pivotal joint on car body, and the jacking block below is embedded in the teeth of gear; Again, this pushes away frame and is provided with a cross bar, and this cross bar is provided with four bodys, is provided with four directed joysticks in this body, and this orientation joystick is provided with two projections, and this body top is provided with two recesses and two long grooves;
Slide block in each wheel carrier brake system is subjected to a brake cable drawing, and each brake cable converges to be wound in and pushes away frame left side leg and articulate on the line wheel on the pivot; And the slide block in each wheel carrier orientation system is subjected to a direct line drawing, and each direct line correspondingly with push away frame on four directed joysticks be connected; When braking tuning fork bar rose, the inverted L shape plate that can drive car body simultaneously rose, and makes two jacking blocks all break away from gear, and then slide block moves, and lifting shaft descends and realizes brake operation; And can push away the mode rollback brake cable of frame with reciprocally swinging, slide block is retracted; When the projection of directed joystick enters in the long groove of body, slide block moves, and lifting shaft descends that the projection make its below stretches in the recess of wheel carrier rotary seat and directed, and joystick upwards can be drawn, snap in projection in the recess of body and retract slide block, lifting shaft is risen.
2, four-wheel hand-cart brake as claimed in claim 1 and directional device for wheel is characterized in that: can connect brake shoes under the lifting shaft in the wheel carrier brake system, touch with the wheel tire pressure by brake shoes and brake go-cart.
3, the brake of four-wheeled hand truck as claimed in claim 1 and directional device for wheel, it is characterized in that to connect a plate under the lifting shaft in the wheel carrier brake system, fix two brake lever on this plate, these two brake lever guide by two perforation of a pedestal, when lifting shaft is descended, these two brake lever stretch into the hole of wheel central siphon, and the braking go-cart.
4, the brake of four-wheeled hand truck as claimed in claim 1 and directional device for wheel, it is characterized in that when being used in higher go-cart, lifting shaft in brake system and the orientation system can adopt the directly upwards mode of drawing, and lifting shaft itself is nested with pressure-proof spring, and needn't use slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101210 CN1064446A (en) | 1991-02-27 | 1991-02-27 | Four-wheel hand-cart brake and directional device for wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101210 CN1064446A (en) | 1991-02-27 | 1991-02-27 | Four-wheel hand-cart brake and directional device for wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1064446A true CN1064446A (en) | 1992-09-16 |
Family
ID=4904996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101210 Pending CN1064446A (en) | 1991-02-27 | 1991-02-27 | Four-wheel hand-cart brake and directional device for wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064446A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163355A (en) * | 2011-03-25 | 2011-08-24 | 苏州工业园区金禾电气设备有限公司 | Mobile site monitoring and warning system |
| CN105146916A (en) * | 2015-07-28 | 2015-12-16 | 嘉兴职业技术学院 | Parking mechanism of hotel storage cart |
| CN107171240A (en) * | 2017-07-07 | 2017-09-15 | 叶国年 | A kind of novel power cable device |
| CN107472917A (en) * | 2017-09-18 | 2017-12-15 | 金石机器人常州股份有限公司 | Stacking machine walking dolly with Self-locking universal wheel |
| CN107890401A (en) * | 2017-07-07 | 2018-04-10 | 南宁深通电子科技有限公司 | A kind of Novel medical pusher gear |
| CN107891890A (en) * | 2017-07-07 | 2018-04-10 | 南宁深通电子科技有限公司 | A kind of safe Medical trolley device |
| CN107939861A (en) * | 2017-10-24 | 2018-04-20 | 马鞍山祥源机械厂 | A kind of brake gear of Mobile base |
| CN108099969A (en) * | 2017-07-07 | 2018-06-01 | 泉州市鸿远电子科技有限公司 | A kind of safe power cable device |
| CN108116813A (en) * | 2017-07-07 | 2018-06-05 | 永春豪田工艺品有限公司 | A kind of novel environment friendly dustbin apparatus |
| CN108113574A (en) * | 2017-07-07 | 2018-06-05 | 永春聚发工艺品有限公司 | A kind of safe dust catcher device |
| CN108116812A (en) * | 2017-07-07 | 2018-06-05 | 永春豪田工艺品有限公司 | A kind of safe Environmental-protection garbage case apparatus |
| CN108128343A (en) * | 2017-07-07 | 2018-06-08 | 南宁朗程电子科技有限公司 | A kind of improved bridge equipment |
| CN108146485A (en) * | 2017-07-07 | 2018-06-12 | 南宁朗程电子科技有限公司 | A kind of safe bridge equipment |
| US11904920B2 (en) | 2021-11-19 | 2024-02-20 | Raytheon Company | Lift cart with mechanically actuated automatic braking device |
-
1991
- 1991-02-27 CN CN 91101210 patent/CN1064446A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163355A (en) * | 2011-03-25 | 2011-08-24 | 苏州工业园区金禾电气设备有限公司 | Mobile site monitoring and warning system |
| CN105146916A (en) * | 2015-07-28 | 2015-12-16 | 嘉兴职业技术学院 | Parking mechanism of hotel storage cart |
| CN108128343A (en) * | 2017-07-07 | 2018-06-08 | 南宁朗程电子科技有限公司 | A kind of improved bridge equipment |
| CN107171240A (en) * | 2017-07-07 | 2017-09-15 | 叶国年 | A kind of novel power cable device |
| CN107890401A (en) * | 2017-07-07 | 2018-04-10 | 南宁深通电子科技有限公司 | A kind of Novel medical pusher gear |
| CN107891890A (en) * | 2017-07-07 | 2018-04-10 | 南宁深通电子科技有限公司 | A kind of safe Medical trolley device |
| CN108146485A (en) * | 2017-07-07 | 2018-06-12 | 南宁朗程电子科技有限公司 | A kind of safe bridge equipment |
| CN108099969A (en) * | 2017-07-07 | 2018-06-01 | 泉州市鸿远电子科技有限公司 | A kind of safe power cable device |
| CN108116813A (en) * | 2017-07-07 | 2018-06-05 | 永春豪田工艺品有限公司 | A kind of novel environment friendly dustbin apparatus |
| CN108113574A (en) * | 2017-07-07 | 2018-06-05 | 永春聚发工艺品有限公司 | A kind of safe dust catcher device |
| CN108116812A (en) * | 2017-07-07 | 2018-06-05 | 永春豪田工艺品有限公司 | A kind of safe Environmental-protection garbage case apparatus |
| CN107472917A (en) * | 2017-09-18 | 2017-12-15 | 金石机器人常州股份有限公司 | Stacking machine walking dolly with Self-locking universal wheel |
| CN107939861A (en) * | 2017-10-24 | 2018-04-20 | 马鞍山祥源机械厂 | A kind of brake gear of Mobile base |
| CN107939861B (en) * | 2017-10-24 | 2020-02-04 | 马鞍山祥源机械厂 | Brake device of movable seat |
| US11904920B2 (en) | 2021-11-19 | 2024-02-20 | Raytheon Company | Lift cart with mechanically actuated automatic braking device |
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