CN204296780U - Logistics trolley, vehicle wheel component and wheel switching mechanism thereof - Google Patents
Logistics trolley, vehicle wheel component and wheel switching mechanism thereof Download PDFInfo
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- CN204296780U CN204296780U CN201420724190.7U CN201420724190U CN204296780U CN 204296780 U CN204296780 U CN 204296780U CN 201420724190 U CN201420724190 U CN 201420724190U CN 204296780 U CN204296780 U CN 204296780U
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Abstract
The utility model discloses a kind of logistics trolley, vehicle wheel component and wheel switching mechanism thereof.It discloses a kind of wheel switching mechanism and use vehicle wheel component and the logistics trolley of this wheel switching mechanism, wheel switches between directional wheel pattern and universal wheel pattern, and wheel is directional lock castor, and is connected to support.Slide block guide shaft is rack-mount, and slide block guide shaft is provided with spacer pin.Slide block set is contained on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft.The first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod.Sliding axle is rack-mount by sliding bearing, and sliding axle linearly moves, and the first end of sliding axle is connected with the second end of first connecting rod.The first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with the locating hole of directional lock castor.
Description
Technical field
The utility model relates to means of transport field, more particularly, relate to a kind of can between universal wheel and directional wheel the wheel switching mechanism of switching working mode, and use the logistics trolley of this kind of mechanism.
Background technology
In manufacturing enterprise, such as automobile manufacturing enterprise in process of production, and the transport of on-site parts uses logistics trolley usually.Be in the consideration of production site and production security, logistics trolley requires to possess higher steering flexibility.
The two class logistics trolleys generally applied adopt following wheel configuration:
First kind logistics trolley front-wheel adopts two universal wheels, and trailing wheel adopts two directional wheels, draws it advance by manpower or tractor.
Equations of The Second Kind logistics trolley front-wheel adopts two directional wheels, and trailing wheel adopts two universal wheels, by manpower or its advance of mechanical driven.
No matter be any logistics trolley, usually wherein one group be that directional wheel, another group are for universal wheel.In the application of reality, the one end at universal wheel place turns to and is more prone to, but the one end at directional wheel place advances more stable.Owing to being subject to the restriction in place and driving route, in some regions, may need the position that turns to can more near directional wheel side, at this moment just there is the inconvenience of operation in existing logistics trolley, need to reciprocate to adjust position, just can accomplish suitable turning to.In some cases, also can wish that dolly preferably can have the function of lateral displacement, can move in less space.
The method of solution is that whole wheels of logistics trolley adopt universal wheels, but four universal wheels are made troubles to propelling, the dolly of four universal wheels be difficult to when straightaway controlling party to, therefore also there is significant defect in more difficult manipulation.
Utility model content
The utility model is intended to propose a kind of wheel switching mechanism that can carry out switching between directional wheel and universal wheel, and uses vehicle wheel component and the logistics trolley of this mechanism.
According to an embodiment of the present utility model, propose a kind of wheel switching mechanism, wheel switches between directional wheel pattern and universal wheel pattern, and wheel switching mechanism comprises: support, slide block guide shaft, slide block, first connecting rod, sliding axle and second connecting rod.Wheel is connected to support, and wheel is directional lock castor.Slide block guide shaft is rack-mount, and slide block guide shaft is provided with spacer pin.Slide block set is contained on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft.The first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod.Sliding axle is rack-mount by sliding bearing, and sliding axle moves linearly vertically, and the first end of sliding axle is connected with the second end of first connecting rod.The first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with directional lock castor locating hole.
In one embodiment, this wheel switching mechanism also comprises spring mechanism, and spring mechanism comprises and is arranged on spring base on sliding axle and spring.Skid is to an end of slide block guide shaft, and the second end of first connecting rod is in retracted position, and in the raw, the alignment pin of second connecting rod is separated with the locating hole of directional lock castor spring, and directional lock castor is in universal wheel pattern.Skid is to the position of the spacer pin of slide block guide shaft, and the second end of first connecting rod is in extended position, and sliding axle moves, and spring is compressed, and the alignment pin of second connecting rod is placed in the locating hole of directional lock castor, and directional lock castor is in directional wheel pattern.
In one embodiment, this wheel switching mechanism also comprises clearance adjustment mechanism, the waist hole pin that clearance adjustment mechanism comprises mounting hole and slides in mounting hole.Mounting hole is located at the second end of sliding axle, and waist hole pin is located at the first end of second connecting rod.
In one embodiment, the point midway of slide block guide shaft also offers the limit pin hole of mounting limit pin.Slide block is driven by external drive unit, slides along slide block guide shaft.
According to an embodiment of the present utility model, propose a kind of vehicle wheel component, comprise support and two and to harness an animal to a cart wheel switching mechanism.The two ends of support connect a directional lock castor separately.Every suit wheel switching mechanism operates a directional lock castor and switches between directional wheel pattern and universal wheel pattern, and wheel switching mechanism comprises: slide block guide shaft, slide block, first connecting rod, sliding axle and second connecting rod.Slide block guide shaft is rack-mount, and slide block guide shaft is provided with spacer pin.Slide block set is contained on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft.The first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod.Sliding axle is rack-mount by sliding bearing, and sliding axle moves linearly vertically, and the first end of sliding axle is connected with the second end of first connecting rod.The first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with the locating hole of directional lock castor.Two harness an animal to a cart wheel switching mechanism share slide block guide shaft and slide block, slide block guide shaft be positioned at both direction lock castor centre.
In one embodiment, wheel switching mechanism also comprises spring mechanism, and spring mechanism comprises and is arranged on spring base on sliding axle and spring.Skid is to an end of slide block guide shaft, and the second end of first connecting rod is in retracted position, and in the raw, the alignment pin of second connecting rod is separated with the locating hole of directional lock castor spring, and directional lock castor is in universal wheel pattern.Skid is to the position of the spacer pin of slide block guide shaft, and the second end of first connecting rod is in extended position, and sliding axle moves, and spring is compressed, and the alignment pin of second connecting rod is placed in the locating hole of directional lock castor, and directional lock castor is in directional wheel pattern.
In one embodiment, wheel switching mechanism also comprises clearance adjustment mechanism, the waist hole pin that clearance adjustment mechanism comprises mounting hole and slides in mounting hole.Mounting hole is located at the second end of sliding axle, and waist hole pin is located at the first end of second connecting rod.
In one embodiment, the point midway of the slide block guide shaft in wheel switching mechanism also offers the pin-and-hole of mounting limit pin.Slide block is driven by external drive unit, slides along slide block guide shaft.
According to an embodiment of the present utility model, propose a kind of logistics trolley, comprise two groups of wheels, wherein one group of wheel is aforesaid vehicle wheel component, and another group wheel is universal wheel.
In one embodiment, this logistics trolley comprises draw bar, and draw bar is connected to slide block and drives slide block to slide along slide block guide shaft as external drive unit.
According to an embodiment of the present utility model, propose a kind of logistics trolley, comprise two groups of wheels, two groups of wheels are aforesaid vehicle wheel component.
In one embodiment, this logistics trolley also comprises draw bar, and draw bar is connected to slide block and drives slide block to slide along slide block guide shaft as external drive unit.
Adopt the logistics trolley of wheel switching mechanism of the present utility model, its vehicle wheel component can switch between directional wheel and universal wheel pattern, universal wheel pattern can be switched to when needs turn to, directional wheel pattern can be switched to when needs are advanced, reliability is high, simple to operate, applied widely.
Accompanying drawing explanation
The above and other feature of the utility model, character and advantage are by more obvious by what become below in conjunction with the description of drawings and Examples, and Reference numeral identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 discloses the structure chart of the wheel switching mechanism according to an embodiment of the present utility model.
Fig. 2 a and Fig. 2 b discloses the structure chart carrying out state switching according to the wheel switching mechanism of an embodiment of the present utility model.
Fig. 3 a and Fig. 3 b discloses the structure chart carrying out state switching according to an embodiment directional lock castor of the present utility model.
Fig. 4 a discloses the structure chart of the first embodiment according to vehicle wheel component of the present utility model.
Fig. 4 b discloses the structure chart of the second embodiment according to vehicle wheel component of the present utility model.
Fig. 5 discloses the structure chart of drive unit in the logistics trolley according to an embodiment of the present utility model.
Fig. 6 a discloses the structure chart of the first embodiment according to logistics trolley of the present utility model.
Fig. 6 b discloses the structure chart of the second embodiment according to logistics trolley of the present utility model.
Detailed description of the invention
Shown in figure 1, Fig. 1 discloses the structure chart of the wheel switching mechanism according to an embodiment of the present utility model.This wheel switching mechanism wheel switches between directional wheel pattern and universal wheel pattern.Directional lock castor as used herein can be any one existing directional lock castor, or occur from now on, there is the new directional lock castor consistent with the basic structure of existing directional lock castor.This wheel switching mechanism comprises: support 101, slide block guide shaft 102, slide block 103, first connecting rod 105, sliding axle 106 and second connecting rod 108.It should be noted that, wheel switching mechanism normally uses in pairs, and as shown in Figure 1, two wheel switching mechanisms can occur in pairs, control a pair directional lock castor.Here description is described for the wheel switching mechanism in left side in Fig. 1.
In one embodiment, wheel is directional lock castor 109, and directional lock castor 109 is connected to support 101.Directional lock castor 109 has two kinds with the connected mode of support 101, and wherein one is that directional lock castor 109 is directly installed on support 101, is positioned at one end of support 101.This kind of mode is such as shown in Fig. 1.Another kind is that directional lock castor 109 is not arranged on support 101, and is mounted on the chassis of logistics trolley, such as, mode shown in subsequent figures 4b.
Slide block guide shaft 102 is arranged on support 101, slide block guide shaft 102 is provided with spacer pin 104.The position of slide block guide shaft 102 makes the mid point being positioned at both direction lock castor 109 usually, is generally be positioned on the mid point of support 101.Slide block guide shaft 102 offers limit pin hole at point midway, mounting limit pin 104 in limit pin hole.The reason that spacer pin 104 is arranged on the mid point of slide block guide shaft 102 makes first connecting rod 105, sliding axle 106 and second connecting rod 108 when being in the lock state (being locked in directional wheel pattern by directional lock castor 109), first connecting rod 105, sliding axle 106 and second connecting rod 108 can be in a straight line, obtain comparatively stable state thus.
Slide block 103 is sleeved on slide block guide shaft 102, and slide block 103 slides along slide block guide shaft 102, and the sliding position of slide block 103 is between spacer pin 104 and an end of slide block guide shaft 102.Slide block 103 is driven by external drive unit.In the embodiment shown in Fig. 5 described later, external drive unit is the draw bar 110 on logistics trolley, and draw bar 110 drives slide block 103 to slide along slide block guide shaft 102.
The first end of first connecting rod 105 is hinged on slide block 103, and when slide block 103 slides along slide block guide shaft 102, first connecting rod 105 can switch between heeling condition and level.Length due to first connecting rod 105 is fixing, therefore under heeling condition and level, causes the second end displacement in the horizontal direction of first connecting rod 105.The second end displacement in the horizontal direction of first connecting rod 105 can be used for driving the action of follow-up sliding axle 106 and second connecting rod 108.
Sliding axle 106 is arranged on support 101 by sliding bearing, and sliding bearing makes sliding axle 106 linearly to move.In one embodiment, sliding bearing makes sliding axle 106 move along the direction being parallel to support 101 axis, and namely the moving direction of sliding axle 106 is vertical with slide block guide shaft 102.The first end of sliding axle 106 is connected with the second end of first connecting rod 105.In the illustrated embodiment in which, wheel switching mechanism also comprises spring mechanism, and spring mechanism comprises and is arranged on spring base 111 on sliding axle and spring 107.Sliding axle 106 moves can be with flexible spring seat 111 to move, thus holddown spring 107.
The first end of second connecting rod 108 is connected with sliding axle 106, second end of second connecting rod 108 is provided with alignment pin 108a (with reference to figure 3a and Fig. 3 b), and alignment pin 108a mates with the locating hole 109a (with reference to figure 3a and Fig. 3 b) of directional lock castor 109.In one embodiment, this wheel switching mechanism also comprises clearance adjustment mechanism, the waist hole pin 108b that clearance adjustment mechanism comprises mounting hole 106a and slides in mounting hole 106a.Shown in figure 3a and Fig. 3 b, mounting hole 106a is located at the second end of sliding axle 106, and waist hole pin 108b is located at the first end of second connecting rod 108.
Fig. 2 a and Fig. 2 b discloses the structure chart carrying out state switching according to the wheel switching mechanism of an embodiment of the present utility model.
Shown in figure 2a, now directional lock castor is set to universal wheel pattern by wheel switching mechanism.Slide block 103 slides into an end of slide block guide shaft 102, and in the illustrated embodiment in which, slide block 103 slides into the bottom of slip guide shaft 102.First connecting rod 105 is in heeling condition, and spring 107 is not compressed by spring base 111 and sliding axle 106, and the alignment pin 108a of second connecting rod 108 does not contact with the locating hole 109a of directional lock castor 109.Directional lock castor 109 is in universal wheel pattern.Be the structure chart that the directional lock castor shown in Fig. 3 a carries out state switching corresponding to Fig. 2 a.Shown in figure 3a, second connecting rod 108 and sliding axle 106 are in by the state of " stretching ", and the waist hole pin 108b on second connecting rod 108 is arranged in the position of the mounting hole 106a on sliding axle 106 near second connecting rod side.The alignment pin 108a of second connecting rod 108 is separated with the locating hole 109a of directional lock castor 109, and directional lock castor 109 does not lock by locating hole 109a, so directional lock castor 109 is in universal wheel pattern.
Shown in figure 2b, now directional lock castor is set to directional wheel state by wheel switching mechanism.Slide block 103 slides into the mid point of slide block guide shaft 102 and spacing by spacer pin 104.First connecting rod 105 is in level.Compared with the heeling condition shown in Fig. 2 a, the horizontal level of the second end of first connecting rod 105 creates displacement, and more near sliding axle 106 side, thus, first connecting rod 105 pairs of sliding axles 106 produce pressure, promotes sliding axle 106.Sliding axle 106 is with flexible spring seat 111, spring base 111 Compress Spring 107.Sliding axle 106 also drives second connecting rod 108, and the alignment pin 108a of second connecting rod 108 is placed in the locating hole 109a of directional lock castor 109.Directional lock castor 109 is in directional wheel pattern.Be the structure chart that the directional lock castor shown in Fig. 3 b carries out state switching corresponding to Fig. 2 b.Shown in figure 3b, second connecting rod 108 and sliding axle 106 are in the state be ' compressed ', and the position near sliding axle side in the mounting hole 106a of 108b on sliding axle 106 is sold in the waist hole of second connecting rod 108.The alignment pin 108a of second connecting rod 108 is placed in the locating hole 109a of directional lock castor 109, and directional lock castor 109 locks by locating hole 109a, so directional lock castor 109 is in directional wheel pattern.
In conjunction with the embodiment shown in Fig. 5 described later, slide block 103 at external drive unit, can slide along slide block guide shaft 102 under the driving of the draw bar 110 on such as logistics trolley.When needs are switched to directional wheel pattern from universal wheel pattern, pull draw bar 110, make slide block 103 upward sliding from one end (such as bottom) of slip guide shaft 102, until limited pin 104 stops, now the alignment pin of directional lock castor 109 is locked, directional lock castor 109 switches to directional wheel pattern from universal wheel pattern, and spring 107 is by compressed energy-storage.When needs are switched to universal wheel pattern from directional wheel pattern, reverse draw bar 110, slide block 103 is slided to one end (such as bottom) from slip guide shaft 102 mid point, now the alignment pin of directional lock castor 109 unclamps, and directional lock castor 109 switches to directional wheel pattern from universal wheel pattern.Spring 107 is released energy and is applied spring force to sliding axle 106, and auxiliary first connecting rod 105 and 103 slips of sliding, occur stuck situation to prevent first connecting rod 105.
Shown in figure 4a and Fig. 4 b, adopt the wheel switching mechanism shown in Fig. 1, Fig. 2 a, Fig. 2 b, Fig. 3 a and Fig. 3 b, the utility model also proposes a kind of vehicle wheel component.
Shown in figure 4a, disclose the structure chart of the first embodiment according to vehicle wheel component of the present utility model.This vehicle wheel component comprises support 101 and two and to harness an animal to a cart wheel switching mechanism.The two ends of support 101 connect a directional lock castor 109 separately.In the embodiment shown in Fig. 4 a, directional lock castor 109 is arranged on support 101, and both direction lock castor lays respectively at the two ends of support 101.
Shown in figure 4b, disclose the structure chart of the second embodiment according to vehicle wheel component of the present utility model.This vehicle wheel component comprises support 101 and two and to harness an animal to a cart wheel switching mechanism.The two ends of support 101 connect a directional lock castor 109 separately.In the embodiment shown in Fig. 4 b, directional lock castor 109 is not arranged on support 101, and is mounted on the chassis of logistics trolley.Outside the two ends of support 101, separately a directional lock castor 109 is installed.
In the embodiment shown in Fig. 4 a and Fig. 4 b, no matter be any mode, every suit wheel switching mechanism all operates a directional lock castor and switches between directional wheel pattern and universal wheel pattern, wheel switching mechanism shown in wheel switching mechanism with prior figures 1, Fig. 2 a, Fig. 2 b, Fig. 3 a with Fig. 3 b is identical, is briefly described as follows: wheel switching mechanism comprises slide block guide shaft, slide block, first connecting rod, spring mechanism, sliding axle and second connecting rod.Slide block guide shaft is rack-mount, and slide block guide shaft is provided with spacer pin.Slide block guide shaft is rack-mount, and the point midway of slide block guide shaft also offers the pin-and-hole of mounting limit pin, and slide block guide shaft is provided with spacer pin.Slide block set is contained on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft.Slide block is driven by external drive unit, slides along slide block guide shaft.The first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod.Sliding axle is rack-mount by sliding bearing, and sliding axle moves linearly vertically, and the first end of sliding axle is connected with the second end of first connecting rod.The first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with the locating hole of directional lock castor.Two harness an animal to a cart wheel switching mechanism share slide block guide shaft and slide block, slide block guide shaft be positioned at both direction lock castor centre.This wheel switching mechanism also comprises spring mechanism, and spring mechanism comprises and is arranged on spring base on sliding axle and spring.Skid is to an end of slide block guide shaft, and the second end of first connecting rod is in retracted position, and in the raw, the alignment pin of second connecting rod is separated with the locating hole of directional lock castor spring, and directional lock castor is in universal wheel pattern.Skid is to the position of the spacer pin of slide block guide shaft, and the second end of first connecting rod is in extended position, and sliding axle moves, and spring is compressed, and the alignment pin of second connecting rod is placed in the locating hole of directional lock castor, and directional lock castor is in directional wheel pattern.This wheel switching mechanism also comprises clearance adjustment mechanism, the waist hole pin that clearance adjustment mechanism comprises mounting hole and slides in mounting hole.Mounting hole is located at the second end of sliding axle, and waist hole pin is located at the first end of second connecting rod.
In the embodiment shown in Fig. 4 a and Fig. 4 b, two harness an animal to a cart wheel switching mechanism share slide block guide shaft and slide block, slide block guide shaft be positioned at both direction lock castor centre.Vehicle wheel component of the present utility model can be used as pair of wheels, the front-wheel of such as logistics trolley and/or trailing wheel.
The utility model also proposes a kind of logistics trolley adopting above-mentioned vehicle wheel component.Shown in figure 5, this logistics trolley comprises vehicle frame and 501, two groups, chassis vehicle wheel component 502, draw bar 110.In the embodiment shown in fig. 5, draw bar 110 be connected to slide block as external drive unit drive slide block slide along slide block guide shaft.It should be noted that, although illustrate only a draw bar 110 in Figure 5, the quantity of draw bar can be arranged according to actual needs.Or single draw bar can be used to control multiple vehicle wheel component.The quantity of draw bar does not limit.
Fig. 6 a and Fig. 6 b discloses the logistics trolley with different configurations, and said difference configuration herein refers to that the quantity adopting vehicle wheel component of the present utility model is different.
Shown in figure 6a, disclose the structure chart of the first embodiment according to logistics trolley of the present utility model.The logistics trolley of the first embodiment comprises two groups of wheels, and wherein one group of wheel is the vehicle wheel component 601 shown in Fig. 4 a or Fig. 4 b, and another group wheel is universal wheel 602.Logistics trolley front-wheel can be installed in reference to vehicle wheel component of the present utility model, also can be installed in trailing wheel.
Shown in figure 6b, disclose the structure chart of the second embodiment according to logistics trolley of the present utility model.The logistics trolley of the second embodiment comprises two groups of wheels, and two groups of wheels are Fig. 4 a or the vehicle wheel component shown in Fig. 4 b 601.
Adopt the logistics trolley of wheel switching mechanism of the present utility model, its vehicle wheel component can switch between directional wheel and universal wheel pattern, universal wheel pattern can be switched to when needs turn to, directional wheel pattern can be switched to when needs are advanced, reliability is high, simple to operate, applied widely.
Above-described embodiment is available to be familiar with person in the art to realize or to use of the present utility model; those skilled in the art can when not departing from utility model thought of the present utility model; various modifications or change are made to above-described embodiment; thus protection domain of the present utility model not limit by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (12)
1. a wheel switching mechanism, is characterized in that, wheel switches between directional wheel pattern and universal wheel pattern, and described wheel switching mechanism comprises:
Support, described wheel is connected to support, and described wheel is directional lock castor;
Slide block guide shaft, rack-mount, slide block guide shaft is provided with spacer pin;
Slide block, is sleeved on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft;
First connecting rod, the first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod;
Sliding axle, rack-mount by sliding bearing, sliding axle moves linearly vertically, and the first end of sliding axle is connected with the second end of first connecting rod;
Second connecting rod, the first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with directional lock castor locating hole.
2. wheel switching mechanism as claimed in claim 1, is characterized in that, also comprise:
Spring mechanism, comprises and is arranged on spring base on sliding axle and spring;
Skid is to an end of slide block guide shaft, and the second end of first connecting rod is in retracted position, and in the raw, the alignment pin of second connecting rod is separated with the locating hole of directional lock castor spring, and directional lock castor is in universal wheel pattern;
Skid is to the position of the spacer pin of slide block guide shaft, and the second end of first connecting rod is in extended position, and sliding axle moves, and spring is compressed, and the alignment pin of second connecting rod is placed in the locating hole of directional lock castor, and directional lock castor is in directional wheel pattern.
3. wheel switching mechanism as claimed in claim 2, is characterized in that, also comprise clearance adjustment mechanism, the waist hole pin that described clearance adjustment mechanism comprises mounting hole and slides in mounting hole;
Described mounting hole is located at the second end of sliding axle, and described waist hole pin is located at the first end of second connecting rod.
4. the wheel switching mechanism according to any one of claim 1-3, is characterized in that,
The point midway of described slide block guide shaft also offers the limit pin hole of mounting limit pin;
Described slide block is driven by external drive unit, slides along slide block guide shaft.
5. a vehicle wheel component, is characterized in that, comprising:
Support, the two ends of support connect a directional lock castor separately;
Two harness an animal to a cart wheel switching mechanism, and every suit wheel switching mechanism operates a directional lock castor and switches between directional wheel pattern and universal wheel pattern, and described wheel switching mechanism comprises:
Slide block guide shaft, rack-mount, slide block guide shaft is provided with spacer pin;
Slide block, is sleeved on slide block guide shaft, and slide block slides along slide block guide shaft, and the sliding position of slide block is between spacer pin and an end of slide block guide shaft;
First connecting rod, the first end of first connecting rod is hinged on slide block, and slide block slides along slide block guide shaft, causes the second end displacement in the horizontal direction of first connecting rod;
Sliding axle, rack-mount by sliding bearing, sliding axle moves linearly vertically, and the first end of sliding axle is connected with the second end of first connecting rod;
Second connecting rod, the first end of second connecting rod is connected with sliding axle, and the second end of second connecting rod is provided with the alignment pin mated with the locating hole of directional lock castor;
Wherein said two harness an animal to a cart wheel switching mechanism share slide block guide shaft and slide block, described slide block guide shaft be positioned at both direction lock castor centre.
6. vehicle wheel component as claimed in claim 5, it is characterized in that, described wheel switching mechanism also comprises:
Spring mechanism, comprises and is arranged on spring base on sliding axle and spring;
Skid is to an end of slide block guide shaft, and the second end of first connecting rod is in retracted position, and in the raw, the alignment pin of second connecting rod is separated with the locating hole of directional lock castor spring, and directional lock castor is in universal wheel pattern;
Skid is to the position of the spacer pin of slide block guide shaft, and the second end of first connecting rod is in extended position, and sliding axle moves, and spring is compressed, and the alignment pin of second connecting rod is placed in the locating hole of directional lock castor, and directional lock castor is in directional wheel pattern.
7. vehicle wheel component as claimed in claim 6, is characterized in that, also comprise clearance adjustment mechanism, the waist hole pin that described clearance adjustment mechanism comprises mounting hole and slides in mounting hole;
Described mounting hole is located at the second end of sliding axle, and described waist hole pin is located at the first end of second connecting rod.
8. the vehicle wheel component according to any one of claim 5-7, is characterized in that, in described wheel switching mechanism,
The point midway of described slide block guide shaft also offers the pin-and-hole of mounting limit pin;
Described slide block is driven by external drive unit, slides along slide block guide shaft.
9. a logistics trolley, comprises two groups of wheels, it is characterized in that,
Wherein one group of wheel is the vehicle wheel component such as according to any one of claim 5-7;
Another group wheel is universal wheel.
10. logistics trolley as claimed in claim 9, is characterized in that, also comprise draw bar, and described draw bar is connected to slide block and drives slide block to slide along slide block guide shaft as external drive unit.
11. 1 kinds of logistics trolleys, comprise two groups of wheels, it is characterized in that,
Two groups of wheels are the vehicle wheel component according to any one of claim 5-7.
12. logistics trolleys as claimed in claim 11, is characterized in that, also comprise draw bar, and described draw bar is connected to slide block and drives slide block to slide along slide block guide shaft as external drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724190.7U CN204296780U (en) | 2014-11-26 | 2014-11-26 | Logistics trolley, vehicle wheel component and wheel switching mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724190.7U CN204296780U (en) | 2014-11-26 | 2014-11-26 | Logistics trolley, vehicle wheel component and wheel switching mechanism thereof |
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| CN204296780U true CN204296780U (en) | 2015-04-29 |
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| CN201420724190.7U Active CN204296780U (en) | 2014-11-26 | 2014-11-26 | Logistics trolley, vehicle wheel component and wheel switching mechanism thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376649A (en) * | 2018-12-28 | 2020-07-07 | 广州市井源机电设备有限公司 | Directional universal auto-change over device of robot truckle and running gear thereof |
| CN112937650A (en) * | 2021-01-26 | 2021-06-11 | 江苏远平园林建设有限公司 | Concrete road auxiliary walking device for municipal works convenient to cross road pit |
-
2014
- 2014-11-26 CN CN201420724190.7U patent/CN204296780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376649A (en) * | 2018-12-28 | 2020-07-07 | 广州市井源机电设备有限公司 | Directional universal auto-change over device of robot truckle and running gear thereof |
| CN112937650A (en) * | 2021-01-26 | 2021-06-11 | 江苏远平园林建设有限公司 | Concrete road auxiliary walking device for municipal works convenient to cross road pit |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
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Address after: Anting Jiading District Town, Shanghai City Road No. 123 in 201805 Patentee after: SAIC VOLKSWAGEN AUTOMOTIVE COMPANY LIMITED Address before: Anting Jiading District Town, Shanghai City Road No. 123 in 201805 Patentee before: Dazhang Automobile Co., Ltd., Shanghai |