CN202966269U - Position limiting device for supporting leg supporting feet disc - Google Patents
Position limiting device for supporting leg supporting feet disc Download PDFInfo
- Publication number
- CN202966269U CN202966269U CN 201220680518 CN201220680518U CN202966269U CN 202966269 U CN202966269 U CN 202966269U CN 201220680518 CN201220680518 CN 201220680518 CN 201220680518 U CN201220680518 U CN 201220680518U CN 202966269 U CN202966269 U CN 202966269U
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- China
- Prior art keywords
- disc
- cover plate
- leg
- supporting leg
- locating dowel
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- Withdrawn - After Issue
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Abstract
The utility model relates to a position limiting device for a supporting leg supporting feet disc. A supporting leg comprises a supporting leg oil cylinder barrel and a supporting feet disc, wherein an oil cylinder bar is arranged inside the supporting leg oil cylinder barrel. The position limiting device is arranged between the supporting leg oil cylinder barrel and the supporting feet disc, the position limiting device comprises a shield plate which is arranged on the supporting leg oil cylinder barrel, a position limiting plate which is connected with a part of the shield plate and is fixed on the supporting feet disc, and a position limiting pin assembly which at least partially penetrates through the shield plate and the position limiting plate, wherein the shield plate is tightly attached to the position limiting plate to limit the swinging of the supporting feet disc, and the position limiting pin assembly limits the rotation of the supporting feet disc through the fact that the position limiting pin assembly at least partially penetrates through the shield plate and the position limiting plate. According to the position limiting device for the supporting leg supporting feet disc, the supporting leg disc can be made into a rectangular shape, so that the ground contacting area of supporting legs when the supporting legs are in a working status is ensured, working can be conducted without the need for manual operation of the supporting feet disc, working efficiency is improved, and precious time is saved.
Description
Technical field
The utility model relates to a kind of mechanical position limitation structure, particularly relates to a kind of inhibiting device of supporting leg leg disc.
Background technology
The leg disc of existing Elevating platform fire truck generally adopts circular configuration.Large scale development along with vehicle, the pressure that during operation, bear on ground also constantly increases, traditional leg disc is in order to guarantee certain grounding pressure, have to the leg disc ground contact area is strengthened, but this kind measure makes the lateral dimension of leg disc when retracted state become large, even exceeds the vehicle maximum transverse size of standard code.
Referring to Fig. 1 and Fig. 2, the super wide problem of lateral direction of car oad when travelling for solution, leg disc is generally made plug-type sliding structure.During operation, leg disc is pulled out, as shown in Figure 2, and use the bearing pin pinning, guarantee that leg disc and Vertical Cylinders are not subjected to displacement; And when the preparation of returning the vehicle to the garage and knock off is travelled, after bearing pin is extracted, leg disc is passed to motoring condition, as shown in Figure 1, then with on the bearing pin pin.
Above-mentioned leg disc that can be plug-type, before operation and after operation, must be by manually completing the push-and-pull of leg disc, and need manually that the bearing pin pin is good, guarantee operation and when travelling Vertical Cylinders and leg disc be not subjected to displacement.This structure needs four leg discs of operator to carry out one by one, and complex operation is wasted time and energy.The mode of slippage is manually carried out in this dependence, and operating efficiency is very low; Can deal with problems for the Other Engineering vehicle, but for time is life and the fire fighting and rescue fire extinguishing tanker of property for, but greatly reduce efficient, affected salvage work, cause disaster extension.
So the Elevating platform fire truck of part prior art begins to adopt the oblong leg disc, by reducing the horizontal length of side, increase the requirement of also satisfying the vehicle maximum transverse size when vertical length of side realizes satisfying identical ground contact area.
But with leg disc change into square after, because there are rotation in hydraulic ram cylinder bar and cylinder barrel, leg disc is fixed on the cylinder bar, so the leg disc direction can't be spacing.After leg disc rotates through certain angle, just deposit the super wide problem of vehicle lateral direction of car oad in motion.How simple and effectively realize that the spacing of square leg disc is problem needing to overcome.
The utility model content
The purpose of this utility model is to propose a kind of inhibiting device that can realize the supporting leg leg disc that square leg disc is quick spacing.
for achieving the above object, the utility model provides a kind of inhibiting device of supporting leg leg disc, described supporting leg comprises that inside is provided with support oil cylinder cylinder barrel and the leg disc of oil cylinder bar, described inhibiting device is arranged between support oil cylinder cylinder barrel and leg disc, described inhibiting device comprises the cover plate that is arranged on the support oil cylinder cylinder barrel, be connected and be fixed on positioning plate on described leg disc with described cover plate is at least part of, and at least part of locating dowel pin assembly that runs through described cover plate and positioning plate, wherein, fit tightly the swing of the described leg disc of restriction between described cover plate and positioning plate, described locating dowel pin assembly is by running through at least the rotation of the described leg disc of described cover plate and positioning plate restriction.
Preferably, described cover plate is welded by annular slab and top board, has the first knock hole and the second knock hole on described annular slab.
Preferably, the diameter of described positioning plate is more than or equal to the diameter of the loop configuration of described annular slab formation; When the oil cylinder bar was full reduced, described positioning plate and described annular slab fitted tightly.
Preferably, have the 3rd knock hole on described positioning plate, when leg disc is ajusted, the first knock hole dead in line on described the 3rd knock hole and described cover plate.
Preferably, described locating dowel pin assembly comprises locating dowel pin, be arranged on the handle on locating dowel pin top and be arranged on the Compress Spring at locating dowel pin middle part, wherein, described locating dowel pin lower end and described the 3rd knock hole free-running fit, described locating dowel pin interlude and described the first knock hole free-running fit, described handle is positioned at the outside of described cover plate, and described Compress Spring is adaptive is the inside that compressive state is positioned at cover plate.
Preferably, described locating dowel pin upper end has outside thread, and the lower end is bulb, and interlude is the smooth face of cylinder; Wherein said externally threaded diameter is less than or equal to the diameter of described interlude, the diameter of described interlude is less than or equal to the maximum core shaft diameter of described Compress Spring, the diameter of described bulb is more than or equal to the minimum sleeve diameter of described Compress Spring, and the oad of described handle is greater than the diameter of described interlude.
Preferably, described inhibiting device also comprises the distance detection switch that is arranged on cover plate or positioning plate.
Preferably, described distance detection switch is arranged on described cover plate by described the second knock hole.
Based on technique scheme, the utility model has the advantages that:
The utility model can make leg disc do rectangularity, the ground contact area when guaranteeing the supporting leg operating condition, need not the manual operation leg disc can operation, improved work efficiency, saved the valuable time; And the utility model has limited the degree of freedom of leg disc all directions when travelling, and makes the car load motoring condition not super wide, and can not swing, and has guaranteed the safety of driving; In addition, it is simple, easy to use that the utility model is realized, easily maintenance.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is that the plug-type leg disc of prior art is at the structural representation of the state of recovery;
Fig. 2 is that the plug-type leg disc of prior art is at the structural representation of the state of pulling out;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the structural representation of the utility model cover plate;
Fig. 5 is the structural representation of the utility model positioning plate;
Fig. 6 is the structural representation of the utility model locating dowel pin assembly;
Fig. 7 is the structural representation of the utility model locating dowel pin;
Fig. 8 is the utility model decomposing schematic representation;
Fig. 9 is partial cutaway schematic of the present utility model;
Figure 10 is the schematic diagram of a kind of mode of operation of the utility model;
Figure 11 is the schematic diagram of the another kind of mode of operation of the utility model.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Referring to Fig. 3～Figure 11, the inhibiting device preferred embodiment of the supporting leg of the utility model shown in it leg disc.
at first, referring to Fig. 3～Fig. 9, in the utility model, described supporting leg comprises that inside is provided with support oil cylinder cylinder barrel 51 and the leg disc 6 of oil cylinder bar 52, inhibiting device described in the utility model is arranged between support oil cylinder cylinder barrel 51 and leg disc 6, as shown in Figure 3, described inhibiting device comprises the cover plate 1 that is arranged on support oil cylinder cylinder barrel 51, be connected and be fixed on positioning plate 2 on described leg disc 6 with described cover plate 1 is at least part of, and at least part of locating dowel pin assembly 3 that runs through described cover plate 1 and positioning plate 2, wherein, the end of described oil cylinder bar 52 (lower end in Fig. 8) is semisphere, as shown in Figure 9, described leg disc 6 upper ends are processed with the ball-and-socket that the ball-shaped end with described oil cylinder bar 52 matches, have the through hole greater than described oil cylinder bar 52 diameters on described cover plate 1, be processed with the spherical concave surface that the bulbous upper portion with described oil cylinder bar 52 matches on described positioning plate 2, be understood that for those skilled in the art, positioning plate 2 and the leg disc 6 formed space that mutually combines can cooperatively interact with the spherical of oil cylinder bar 52, limit the degree of freedom of described leg disc 6 except swinging and rotating, fit tightly the swing of the described leg disc 6 of restriction between described cover plate 1 and positioning plate 2.
Further, described cover plate 1 is welded by annular slab 11 and top board 12, has the first knock hole 101 and the second knock hole 102 on described annular slab 11, as shown in Figure 4.
Referring to Fig. 3 or Fig. 8, the diameter of described positioning plate 2 is more than or equal to the diameter of the loop configuration of described annular slab 11 formation; When oil cylinder bar 52 was full reduced, described positioning plate 2 fitted tightly with described annular slab 11.
Referring to Fig. 5, have the 3rd knock hole 103 on described positioning plate 2, when leg disc 6 is ajusted, the first knock hole 101 deads in line on described the 3rd knock hole 103 and described cover plate 1, as shown in Figure 8.
Referring to Fig. 6 and Fig. 7, described locating dowel pin assembly 3 comprises locating dowel pin 31, be arranged on the handle 32 on locating dowel pin 31 tops and be arranged on the Compress Spring 33 at locating dowel pin 31 middle parts, wherein, described locating dowel pin 31 lower ends and described the 3rd knock hole 103 free-running fits, as shown in figure 10, described handle 32 is positioned at the outside of described cover plate 1, and described Compress Spring 33 is adaptive is the inside that compressive state is positioned at cover plate 1.
Need to prove: "up" and "down" described in the utility model all corresponding in each accompanying drawing " on " and D score.
Referring to Fig. 7, described locating dowel pin 31 upper ends have outside thread 313, and the lower end is bulb 311, and interlude 312 is the smooth face of cylinder; The diameter of wherein said outside thread 313 is less than or equal to the diameter of described interlude 312, the diameter of described interlude 312 is less than or equal to the maximum core shaft diameter of described Compress Spring 33, the diameter of described bulb 311 is more than or equal to the minimum sleeve diameter of described Compress Spring 33, the oad of described handle 32 is greater than the diameter of described interlude 312, as Fig. 6, Fig. 7 and shown in Figure 10.
Preferably, described inhibiting device also comprises the distance detection switch 4 that is arranged on cover plate 1 or positioning plate 2.In the present embodiment, described distance detection switch 4 is arranged on described cover plate 1, as Fig. 3 and shown in Figure 9 by described the second knock hole 102.
The utility model is by regulating the gap of cover plate 1 and positioning plate 2, the swing of restriction leg disc 6; Wherein, the head of locating dowel pin 31 is bulb 311, and Compress Spring 33 is always compressive state between the bulb 311 of cover plate 1 and locating dowel pin 31.Locating dowel pin 31 can move up and down along the first knock hole 101 on cover plate 1, and the bulb 311 of locating dowel pin 31 can be inserted in the 3rd knock hole 103 on positioning plate 2.When leg disc 6 retraction, locating dowel pin 31 moves up; After retraction puts in place, ajust leg disc 6, under the effect of Compress Spring 33, in the 3rd knock hole 103 that the bulb 311 of locating dowel pin 31 inserts on positioning plate 2, as shown in figure 10, so far realized the rotary stopper of leg disc 6.
By said structure, make the utility model when operation, oil cylinder bar 52 can directly stretch out and make 6 ground operations of leg disc; During recovery, oil cylinder bar 52 can directly bounce back leg disc 6 is reclaimed, and just can limit leg disc 6 except other degree of freedom around the rotation of Vertical Cylinders axis; Only leg disc 6 need to be ajusted before travelling, just can arrive locating dowel pin assembly 3 volitional check leg discs 6 by the utility model and rotate around the Vertical Cylinders axis; And can realize by distance detection switch 4 the full reduced detection of supporting leg Vertical Cylinders in spacing.
The inhibiting device of supporting leg leg disc of the present utility model is mainly used in the full reduced detection of the spacing of the square leg disc of Elevating platform fire truck and supporting leg Vertical Cylinders, also can be applied to the Other Engineering vehicle with leg disc, as hoisting crane, concrete pump truck etc.The utility model is spacing by the square shaped leg disc, can make vehicle enter as early as possible operating condition, has improved operating efficiency.The full reduced detection of supporting leg Vertical Cylinders can realize that Vertical Cylinders carries out the level retraction of movable supporting legs after full reduced again, has improved the safety of operation.
Particularly, the cover plate 1 of the utility model inhibiting device and positioning plate 2 can limit leg disc 6 except other degree of freedom around the rotation of Vertical Cylinders axis, locating dowel pin assembly 3 can limit leg disc 6 and rotate around the Vertical Cylinders axis, be installed on the gap that the distance detection switch 4 on cover plate 1 passes through between detector switch head and positioning plate 2, realize the full reduced detection of supporting leg Vertical Cylinders.
More specifically, now each component part of the present embodiment is described in detail as follows:
(1) as shown in Figure 4, cover plate 1 is welded by annular slab 11 and top board 12, is processed with the first knock hole 101 and the second knock hole 102.
(2) as shown in Figure 5, positioning plate 2 is comprised of part 21 and part 22, is processed with the 3rd knock hole 103 on part 21.Wherein when leg disc is ajusted, the first knock hole 101 deads in line of the 3rd knock hole 103 of positioning plate and cover plate 1.
(3) as shown in Figure 6 and Figure 7, locating dowel pin assembly 3 is made of locating dowel pin 31, handle 32 and Compress Spring 33.Locating dowel pin 31 1 ends are that outside thread 313, one ends are bulb 311, and interlude 312 is the smooth face of cylinder.During manufacturing, the diameter of outside thread 313 should be less than or equal to the diameter of interlude 312; The diameter of interlude 312 need be less than or equal to the maximum core shaft diameter of Compress Spring 33; The diameter of bulb 311 should be more than or equal to the minimum sleeve diameter of Compress Spring 33; The oad of handle 32 is greater than the diameter of interlude 312.
(4) distance detection switch 4 is selected in existing equipment as required and is got final product.
Installation process of the present utility model is as follows, as shown in Figure 8:
Cover plate 1 is arranged on support oil cylinder cylinder barrel 51; After locating dowel pin 31 puts Compress Spring 33, passing the first knock hole 101 of cover plate 1, then handle 32 is screwed into the threaded end of locating dowel pin 31, is wherein free-running fit between the interlude 312 of the first knock hole 101 and locating dowel pin 31, but relative sliding; Leg disc 6 is arranged on the domed ends of oil cylinder bar 52 lower end heads, can rotate and swing along the domed ends of oil cylinder bar 52; Positioning plate 2 is arranged on leg disc 6, and the 3rd knock hole 103 on positioning plate 2 is slightly larger than the diameter of bulb 311 on locating dowel pin 31; Leg disc 6 is ajusted, the first knock hole 101 of cover plate 1, the 3rd knock hole 103 of positioning plate and locating dowel pin 31 deads in line, the bulb 311 of locating dowel pin 31 is positioned at the 3rd knock hole 103 of positioning plate 2, as shown in figure 10.
At this moment, Compress Spring 33 is between bulb 311 upper limbs of the lower surface of cover plate 1 and locating dowel pin 31, ultimate range L(L between the lower surface of cover plate 1 and bulb 311 upper limbs is setpoint distance, not shown) less than the free height of Compress Spring 33, be that Compress Spring 33 is in confined state all the time, locating dowel pin 31 is had downward thrust.Distance detection switch 4 is arranged on cover plate 1, the second knock hole 102 from cover plate 1 stretches out, point to the upper surface of positioning plate 2, the distance between the lower end of adjustable range detector switch 4 and positioning plate 2 upper surfaces is the distance range that described distance detection switch 4 can detect.
Principle of work of the present utility model and working process are:
(1) when vehicle operation, the 3rd knock hole 103 of the upper surface of the lower surface of cover plate 1 and positioning plate 2, locating dowel pin 31 and positioning plate is separated from each other, and at this moment, leg disc 6 can be rotated along the domed ends of Vertical Cylinders bar 52 and swing.
(2) as shown in figure 10, when oil cylinder bar 52 retractions put in place, the lower surface of cover plate 1 upper annular plate and the upper surface of positioning plate 2 are affixed, distance between the upper surface of the lower end of distance detection switch 4 and positioning plate 2 is for can detect distance, and returning to detection signal, indication oil cylinder bar 52 retractions put in place, allow the supporting leg level to reclaim, thereby prevent that the supporting leg Vertical Cylinders retraction horizontal support legs that just carries out not in place from reclaiming, thereby the contingency such as bump.And because the lower surface of cover plate 1 upper annular plate and the upper surface of positioning plate 2 are affixed, just limited the swing of leg disc 6, prevent in driving process that leg disc swings and and other parts bump.
At this moment still overlap as the first knock hole 101 of cover plate 1 and the 3rd knock hole 103 axis of positioning plate 2, the bulb 311 of locating dowel pin 31 is arranged in the 3rd knock hole 103, as shown in figure 10, realizes rotary stopper.If the 3rd knock hole 103 axis of the first knock hole 101 of cover plate 1 and positioning plate 2 do not overlap, locating dowel pin 31 moves up, distance between bulb 311 upper limbs of the lower surface of cover plate 1 and locating dowel pin 31 is less than L, and Compress Spring 33 is further compressed, as shown in figure 11.At this moment only need leg disc 6 is ajusted, between the 3rd knock hole 103 of the first knock hole 101 of cover plate 1, positioning plate 2 and locating dowel pin 31, axis just can overlap, the bulb 311 of locating dowel pin 31 falls within hole 3, under the effect of Compress Spring 33, distance between bulb 311 upper limbs of the lower surface of cover plate 1 and locating dowel pin 31 is replied as L, has realized thus rotary stopper.
So in the process of moving, leg disc 6 just can not swing, and can not rotate, and Compress Spring 33 pressurizeds, and locating dowel pin 31 is had straight down thrust, and can prevent locating dowel pin 31 the scurry out hole 3 of positioning plate from having increased spacing reliability.Again during operation, only need the vertical support oil cylinder cylinder barrel is stretched out, leg disc 6 ground get final product operation.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (8)
1. the inhibiting device of a supporting leg leg disc, described supporting leg comprises that inside is provided with support oil cylinder cylinder barrel (51) and the leg disc (6) of oil cylinder bar (52), described inhibiting device is arranged between support oil cylinder cylinder barrel (51) and leg disc (6), it is characterized in that: described inhibiting device comprises the cover plate (1) that is arranged on support oil cylinder cylinder barrel (51), be connected and be fixed on positioning plate (2) on described leg disc (6) with described cover plate (1) is at least part of, and at least part of locating dowel pin assembly (3) that runs through described cover plate (1) and positioning plate (2), wherein, fit tightly the swing of the described leg disc of restriction (6) between described cover plate (1) and positioning plate (2), described locating dowel pin assembly (3) is by running through at least the rotation of the described leg disc of described cover plate (1) and positioning plate (2) restriction.
2. the inhibiting device of supporting leg leg disc according to claim 1, it is characterized in that: described cover plate (1) is welded by annular slab (11) and top board (12), has the first knock hole (101) and the second knock hole (102) on described annular slab (11).
3. the inhibiting device of supporting leg leg disc according to claim 2 is characterized in that: the diameter of the loop configuration that the diameter of described positioning plate (2) forms more than or equal to described annular slab (11); When oil cylinder bar (52) was full reduced, described positioning plate (2) fitted tightly with described annular slab (11).
4. the inhibiting device of according to claim 2 or 3 described supporting leg leg discs, it is characterized in that: have the 3rd knock hole (103) on described positioning plate (2), when leg disc (6) when ajusting, the first knock hole (101) dead in line on described the 3rd knock hole (103) and described cover plate (1).
5. the inhibiting device of supporting leg leg disc according to claim 4, it is characterized in that: described locating dowel pin assembly (3) comprises locating dowel pin (31), be arranged on the handle (32) on locating dowel pin (31) top and be arranged on the Compress Spring (33) at locating dowel pin (31) middle part, wherein, described locating dowel pin (31) lower end and described the 3rd knock hole (103) free-running fit, described handle (32) is positioned at the outside of described cover plate (1), and described Compress Spring (33) is adaptive is the inside that compressive state is positioned at cover plate (1).
6. the inhibiting device of supporting leg leg disc according to claim 5 is characterized in that: described locating dowel pin (31) upper end has outside thread (313), and the lower end is bulb (311), and interlude (312) is the smooth face of cylinder; The diameter of wherein said outside thread (313) is less than or equal to the diameter of described interlude (312), the diameter of described interlude (312) is less than or equal to the maximum core shaft diameter of described Compress Spring (33), the diameter of described bulb (311) is more than or equal to the minimum sleeve diameter of described Compress Spring (33), and the oad of described handle (32) is greater than the diameter of described interlude (312).
7. the inhibiting device of supporting leg leg disc according to claim 1, it is characterized in that: described inhibiting device also comprises the distance detection switch (4) that is arranged on cover plate (1) or positioning plate (2).
8. the inhibiting device of supporting leg leg disc according to claim 7, it is characterized in that: described distance detection switch (4) is arranged on described cover plate (1) by described the second knock hole (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680518 CN202966269U (en) | 2012-12-12 | 2012-12-12 | Position limiting device for supporting leg supporting feet disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680518 CN202966269U (en) | 2012-12-12 | 2012-12-12 | Position limiting device for supporting leg supporting feet disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202966269U true CN202966269U (en) | 2013-06-05 |
Family
ID=48507384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680518 Withdrawn - After Issue CN202966269U (en) | 2012-12-12 | 2012-12-12 | Position limiting device for supporting leg supporting feet disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202966269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935842A (en) * | 2012-12-12 | 2013-02-20 | 徐州重型机械有限公司 | Limit device for support foot disc of support leg |
-
2012
- 2012-12-12 CN CN 201220680518 patent/CN202966269U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935842A (en) * | 2012-12-12 | 2013-02-20 | 徐州重型机械有限公司 | Limit device for support foot disc of support leg |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150422 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150422 |