CN210888775U - Portable ascending step frame for crawler crane - Google Patents
Portable ascending step frame for crawler crane Download PDFInfo
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- CN210888775U CN210888775U CN201921066730.6U CN201921066730U CN210888775U CN 210888775 U CN210888775 U CN 210888775U CN 201921066730 U CN201921066730 U CN 201921066730U CN 210888775 U CN210888775 U CN 210888775U
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- connecting plate
- pedal
- footboard
- frame body
- step frame
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Abstract
The utility model relates to a portable ascending step frame for a crawler crane, belonging to the technical field of crawler crane accessories, the key point of the technical proposal is that the portable ascending step frame for the crawler crane comprises a step frame body, a containing groove is arranged between an upper crawler and a lower crawler, the step frame body is arranged in the containing groove, the stepping frame body comprises a fixed rod, a first pedal, a connecting plate and a second pedal, the fixed rod is vertically and fixedly arranged in the accommodating groove, the bottom end of the first pedal is hinged and connected with the bottom end of the opposite side of the fixed rod, the bottom end of the fixed rod is hinged and connected with the top end of the connecting plate, and the bottom of the second pedal is hinged with the bottom of the connecting plate, when the stepping frame body is opened, the first pedal is perpendicular to the fixing rod, the included angle between the connecting plate and the fixing rod is 150 degrees, and the second pedal is parallel to the first pedal, so that the effect of reducing scratch between the stepping frame and people or objects is achieved.
Description
Technical Field
The utility model relates to a technical field of crawler crane annex especially relates to a crawler crane is with portable step on step frame of ascending a height.
Background
With the wave of lifting up of infrastructure construction at home and abroad, the demand of large-scale crawler cranes is increasing day by day, and especially the demand of the crawler cranes is further increased when high-speed rails, subway projects, road bridges and offshore onshore wind power utilities are built. The ascending device of the crawler crane is often overlooked, and drivers and maintenance personnel are inconvenient to get on and off.
The prior Chinese patent with reference to publication number CN203321298U discloses a portable ascending step frame for a crawler crane, which comprises a frame and a step plate, wherein the frame is mainly formed by welding a front frame, a rear frame, a top connecting rod, a middle connecting rod and a bottom connecting rod, the front frame and the rear frame are symmetrically arranged in front and back and have the same structure, the front frame is in an isosceles trapezoid shape which is split into a half, the front frame is mainly formed by welding a top cross rod, a middle cross rod, a bottom cross rod, a left upright rod, a middle diagonal rod and a right diagonal rod, a top connecting rod, a middle connecting rod and a bottom connecting rod which are welded and arranged in the front-back direction respectively between the right inclined rods and the middle upright rods of the front frame and the rear frame and are connected into a whole, step plates are respectively and correspondingly welded between the top cross bar, the middle cross bar and the bottom cross bar of the front frame and the rear frame, the positioning rod and the bolt which are vertically and downwards arranged are welded at the left end of the top cross rod, so that the use is convenient, and the upper and lower creeper treads are easy, safe and reliable.
The above prior art solutions have the following drawbacks: the climbing stepping frame is a fixing device welded between the upper and lower track plates, and when the crawler crane travels, the width of the crawler crane is increased, so that the climbing stepping frame is easy to scratch and rub people or objects between the upper and lower track plates, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crawler crane is with portable ascending a height and steps on walking frame accomodates through the frame of marking time when will not using and deposits to reach and reduce the walking frame and take place to cut the effect of rubbing with people or thing.
The technical purpose of the utility model is realized through following technical scheme:
the utility model provides a crawler crane is with portable step on step frame of ascending a height, includes to mark time a body, has seted up between the upper and lower track and has accomodate the groove, marks time a body and arranges in and accomodate the inslot, step on the step frame body and include dead lever, first footboard, connecting plate and second footboard, the dead lever is vertical to set firmly in accomodating the inslot, and the bottom of the relative one side of dead lever of the bottom of first footboard links to each other with the bottom of dead lever is articulated, and the top of dead lever bottom and connecting plate is articulated to link to each other, and the bottom of second footboard links to each other with the bottom of connecting plate is articulated, and when marking time a body and opening, first footboard perpendicular to dead lever setting, contained angle between connecting plate and the dead.
Through the technical scheme, when the stepping frame body is used, the stepping frame body is opened from the accommodating groove, the first pedal and the connecting plate drive the second pedal to rotate along the bottom of the fixing rod, the first pedal rotates to be perpendicular to the fixing rod, the connecting plate rotates to form an angle of 150 degrees with the fixing rod, the bottom of the connecting plate is used as a rotating shaft to rotate the second pedal, and the second pedal rotates to be parallel to the first pedal for a driver and maintenance personnel to carry out upper and lower crawler cranes; after the use, rotatory extremely with the connecting plate coincidence with the second footboard earlier, then rotatory towards the direction that is close to the dead lever with second footboard and connecting plate round the top rotation axis of connecting plate together, then will mark time the frame body and place and accomodate the groove in, the frame of marking time between the upper and lower track of relative ratio welded fastening, the utility model discloses after using to mark time the frame body, can withdraw the frame body of marking time and accomodate the groove in, reached and reduced to mark time the frame and take place to cut the effect of rubbing with people or thing.
The utility model discloses further set up to: the connecting plate sets up for inside cavity, and slides along the incline direction of connecting plate in the connecting plate and be provided with the third ladder, and the third ladder includes slide bar and third footboard, and the slide bar links to each other with the third footboard is articulated.
Through the technical scheme, when using the step frame body, put connecting plate and second footboard after, the third ladder of collection in the connecting plate slides down along the incline direction of connecting plate, open the third footboard from the slide bar, the third footboard is rotatory to with first footboard round the bottom of slide bar, second footboard parallel position department, the height of the frame body of marking time has been increased, the convenience of conveniently stepping on the use of frame body, and the third ladder is received in the connecting plate, when playing the guard action to the third ladder, frame body space occupancy of marking time has also been reduced.
The utility model discloses further set up to: the first pedal, the second pedal and the third pedal are all arranged in a hollow manner.
Through above-mentioned technical scheme, set up first footboard, second footboard and third footboard into the fretwork form, alleviate the weight of first footboard, second footboard and third footboard self, and then alleviate the weight of the frame body self of marking time, the quality is lighter, convenient to use.
The utility model discloses further set up to: the third pedal is arranged in the middle of the sliding rod, and the thickness of the third pedal is matched with the height of the opening of the connecting plate.
Through above-mentioned technical scheme, the intermediate position department of two slide bars is arranged in to the third footboard, and the both ends of third footboard link to each other with the slide bar is articulated, and the high looks adaptation of the open-ended of the height and the connector of third footboard ensures that the third footboard can receive inside the connecting plate, improves stability in use.
The utility model discloses further set up to: the lower surface of slide bar rotates and is connected with the pulley, and the connecting plate inner chamber corresponds slide bar position department and offers the spout with pulley looks adaptation, and the spout sets up along the incline direction of connecting plate.
According to the technical scheme, the pulley is rotatably connected to the lower surface of the sliding rod, when the sliding rod slides down along the inclined surface of the connecting plate, the pulley slides in the sliding groove of the connecting plate, friction between the sliding rod and the connecting plate is reduced by the pulley, and the sliding rod can slide out of the connecting plate more conveniently; the sliding groove plays a limiting role in the pulley, the sliding groove and the pulley are matched for use, and the use convenience between the sliding rod and the connecting plate is improved.
The utility model discloses further set up to: the top of the sliding rod is fixedly provided with a clamping block, and when the sliding rod is arranged at the bottom of the connecting plate, the lower surface of the clamping block is abutted against the corresponding position of the connecting plate.
Through above-mentioned technical scheme, when the third ladder in the connecting plate slided downwards along the incline direction of connecting plate, the fixture block at slide bar top and connecting plate intracavity bottom butt prevent that the slide bar from driving the third footboard from connecting plate intracavity roll-off and coming off, and the fixture block has improved the connection stability of third ladder and connecting plate when using.
The utility model discloses further set up to: and switch valves are rotatably arranged on two sides of the accommodating groove.
Through above-mentioned technical scheme, after the frame body of marking time received and accomodate the groove, the rotary switch valve made the ooff valve to the frame body looks butt of marking time, prevented to mark time the frame body and come out from accomodating the landing in the groove, improved the stability of the frame body of marking time in accomodating the groove.
The utility model discloses further set up to: the thickness of the sliding rod is the same as that of the third pedal.
Through the technical scheme, the third pedal is matched with the sliding rod and arranged in the connecting plate, when the thickness of the third pedal is smaller than that of the sliding rod, the stability of the third pedal is poor, and the fixing effect of the connecting plate on the third pedal is poor; when the thick end of third footboard was higher than the thickness of slide bar, the third footboard surpassed the inner chamber height of connecting plate, then in the third footboard can't receive the connecting plate, to sum up, set up the thickness of third footboard into the thickness with the slide bar the same comparatively suitable.
To sum up, the utility model discloses a beneficial technological effect does:
1. by arranging the foldable step frame body and collecting the step frame body in the containing groove when the step frame body is in an idle state, the step frame is welded and fixed between the upper crawler belt and the lower crawler belt in a relative mode, the utility model achieves the effect of reducing the friction between the step frame and people or objects;
2. the first pedal, the second pedal and the third pedal are hollowed out, so that the self weights of the first pedal, the second pedal and the third pedal are reduced, the self weight of the stepping frame body is further reduced, the weight is light, and the use is more convenient;
3. the switch valves are arranged on the two sides of the containing groove in a rotating mode, and after the containing groove is received by the stepping frame body, the switch valves are abutted to the stepping frame body, so that the stepping frame body is prevented from slipping out of the containing groove, and the stability of the stepping frame body in the containing groove is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
FIG. 4 is an enlarged schematic view at C of FIG. 1;
FIG. 5 is a schematic structural view of the stepping frame body of the present embodiment being accommodated in the accommodating groove;
fig. 6 is a sectional view of the connecting plate and slide bar connecting structure of the present embodiment.
Reference numerals: 1. a stepping frame body; 11. fixing the rod; 12. a first pedal; 13. a connecting plate; 131. a chute; 14. a second pedal; 2. a receiving groove; 3. a third step; 31. a slide bar; 311. a pulley; 312. a clamping block; 32. a third pedal; 4. and (4) switching on and off the valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Combine fig. 1 and fig. 5, a crawler crane is with portable step on step frame of ascending a height, including step frame body 1, step on step frame body 1 and include dead lever 11, first footboard 12, connecting plate 13 and second footboard 14, dead lever 11 is provided with two, and the vertical setting of two dead levers 11, the bottom of first footboard 12, the bottom of dead lever 11 and the top of connecting plate 13 are articulated to link to each other, and the bottom of second footboard 14 is articulated with the bottom of connecting plate 13 and links to each other, and relative ratio welded fastening is at the frame of stepping between the upper and lower track, the utility model discloses after using step frame body 1, can withdraw step on frame body 1 and fix and open in order to prevent, reached and reduced the effect that the walking frame took place to cut and rub with people or thing.
With reference to fig. 1 and 2, a storage groove 2 is formed between the upper and lower crawlers, both sides of the storage groove 2 are rotatably connected with a switch valve 4, a fixing rod 11 is vertically and fixedly arranged in the storage groove 2, the stepping frame body 1 is placed in the storage groove 2 when idle, when the stepping frame body 1 is opened, a first pedal 12 and a connecting plate 13 drive a second pedal 14 to rotate along the bottom of the fixing rod 11, the first pedal 12 rotates to be perpendicular to the fixing rod 11, the connecting plate 13 rotates to be 150 degrees with the fixing rod 11, the bottom of the connecting plate 13 is used as a rotating shaft to rotate the second pedal 14, and the second pedal 14 rotates to be parallel to the first pedal 12 for a driver and maintenance personnel to hoist the upper and lower crawlers; after using the footboard frame body, earlier rotatory to with the connecting plate 13 coincidence of second footboard 14, then rotate second footboard 14 and connecting plate 13 together round the top rotation axis of connecting plate 13 towards the direction that is close to dead lever 11, then will mark time frame body 1 and place and accomodate groove 2, rotary switch valve 4 to off-state at last, make ooff valve 4 and mark time frame body 1 looks butt, prevent to mark time frame body 1 and come out from accomodating 2 landing, improve the stability of mark time frame body 1 in accomodating groove 2.
With reference to fig. 3 and 4, the connecting plate 13 is hollow inside, and a third step 3 is slidably disposed in the connecting plate 13 along the inclined direction of the connecting plate 13, the third step 3 includes two sliding rods 31 and a third pedal 32, the thickness of the third pedal 32 is adapted to the height of the opening of the connecting plate 13, the third pedal 32 is disposed between the two sliding rods 31, the bottom of the sliding rod 31 is hinged to the bottom of the third pedal 32, and the sliding rod 31 and the third pedal 32 slide together along the inclined direction of the connecting plate 13. When using step frame body 1, third ladder 3 can increase the height of step frame body 1, improves the convenience of step frame body 1 when using, and after the use, third ladder 3 can be deposited in the 13 intracavity of connecting plate, reduces the occupancy in space.
As shown in fig. 6, the lower surface of the sliding rod 31 is rotatably connected with a pulley 311, a sliding slot 131 matched with the pulley 311 is formed in the cavity of the connecting plate 13 at a position corresponding to the sliding rod 31, the sliding slot 131 is arranged along the inclined direction of the connecting plate 13, and the pulley 311 reduces the friction between the sliding rod 31 and the connecting plate 13, so that the sliding rod 31 can slide out of and retract into the connecting plate 13 more conveniently; the sliding groove 131 has the limiting and guiding functions on the pulley 311, and the sliding groove 131 is matched with the pulley 311, so that the use convenience between the sliding rod 31 and the connecting plate 13 is improved. The top of slide bar 31 sets firmly fixture block 312, and when slide bar 31 was arranged in connecting plate 13 bottom position department, the lower surface of fixture block 312 and connecting plate 13 inner chamber bottom position department butt prevented that slide bar 31 from driving third footboard 32 and coming off from connecting plate 13 intracavity, improved the connection stability of third ladder 3 and connecting plate 13 when using.
The implementation principle of the embodiment is as follows: when the stepping frame body 1 is used, the switch valve 4 is opened, the stepping frame body 1 is taken out from the accommodating groove 2, due to the gravity of the stepping frame body 1, the first pedal 12, the connecting plate 13 and the second pedal 14 move downwards in an inclined mode towards the direction of the far-away fixing rod 11, the first pedal 12 rotates to be perpendicular to the state of the fixing rod 11, the connecting plate 13 rotates to form an included angle of 150 degrees with the fixing rod 11, the sliding rod 31 stored in the cavity of the connecting plate 13 drives the third pedal 32 to slide out of the connecting plate 13 together, the fixture block 312 prevents the sliding rod 31 and the third pedal 32 from falling off from the connecting plate 13, and the second pedal 14 and the third pedal 32 can be used after being manually opened; after the use, put back third footboard 32 to slide bar 31, receive slide bar 31 in connecting plate 13 together with third footboard 32, have downwards upwards upset connecting plate 13, drive second footboard 14 and move towards the direction that is close to dead lever 11, connecting plate 13, second footboard 14 and first footboard 12 are received and are accomodate the groove 2, and regulating switch valve 4 will step frame body 1 and fix for the use.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a crawler crane steps on step with portable ascending a height, includes and has seted up between the upper and lower track and accomodate groove (2) by stepping on a body (1), and in accomodating groove (2) was arranged in by stepping on a body (1), its characterized in that: step on a frame body (1) and include dead lever (11), first footboard (12), connecting plate (13) and second footboard (14), dead lever (11) are vertical to set firmly in accommodating groove (2), the bottom of first footboard (12) is articulated continuous with the bottom of dead lever (11) relative one side, the top of dead lever (11) bottom and connecting plate (13) is articulated continuous, and the bottom of second footboard (14) is articulated continuous with the bottom of connecting plate (13), when stepping on a frame body (1) and opening, first footboard (12) perpendicular to dead lever (11) set up, contained angle between connecting plate (13) and dead lever (11) is 150 degrees, second footboard (14) are on a parallel with first footboard (12) setting.
2. The portable ascending step frame for crawler cranes according to claim 1, wherein: connecting plate (13) are inside cavity setting, and slide along the incline direction of connecting plate (13) in connecting plate (13) and be provided with third ladder (3), and third ladder (3) include slide bar (31) and third footboard (32), and slide bar (31) link to each other with third footboard (32) are articulated.
3. The portable ascending step frame for crawler cranes according to claim 1, wherein: the first pedal (12), the second pedal (14) and the third pedal (32) are all arranged in a hollow manner.
4. The portable ascending step frame for crawler cranes according to claim 2, wherein: the third pedal (32) is arranged in the middle of the sliding rod (31), and the thickness of the third pedal (32) is matched with the height of the opening of the connecting plate (13).
5. The portable ascending step frame for crawler cranes according to claim 2, wherein: the lower surface of the sliding rod (31) is rotatably connected with a pulley (311), a sliding groove (131) matched with the pulley (311) is formed in the position, corresponding to the sliding rod (31), of the inner cavity of the connecting plate (13), and the sliding groove (131) is arranged along the inclined direction of the connecting plate (13).
6. The portable ascending step frame for crawler cranes according to claim 2, wherein: the top of the sliding rod (31) is fixedly provided with a clamping block (312), and when the sliding rod (31) is arranged at the bottom of the connecting plate (13), the lower surface of the clamping block (312) is abutted against the corresponding position of the connecting plate (13).
7. The portable ascending step frame for crawler cranes according to claim 1, wherein: and switch valves (4) are rotatably arranged on two sides of the accommodating groove (2).
8. The portable ascending step frame for crawler cranes according to claim 2, wherein: the thickness of the sliding rod (31) is the same as that of the third pedal (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921066730.6U CN210888775U (en) | 2019-07-09 | 2019-07-09 | Portable ascending step frame for crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921066730.6U CN210888775U (en) | 2019-07-09 | 2019-07-09 | Portable ascending step frame for crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210888775U true CN210888775U (en) | 2020-06-30 |
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ID=71317723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921066730.6U Expired - Fee Related CN210888775U (en) | 2019-07-09 | 2019-07-09 | Portable ascending step frame for crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210888775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338293A (en) * | 2021-06-30 | 2021-09-03 | 练海辉 | Sound insulation wall type underwater assembly device convenient to assemble |
-
2019
- 2019-07-09 CN CN201921066730.6U patent/CN210888775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338293A (en) * | 2021-06-30 | 2021-09-03 | 练海辉 | Sound insulation wall type underwater assembly device convenient to assemble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 Termination date: 20210709 |