CN211688058U - Double-support-leg supporting mechanism and crossing construction protection device - Google Patents
Double-support-leg supporting mechanism and crossing construction protection device Download PDFInfo
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- CN211688058U CN211688058U CN202020029403.XU CN202020029403U CN211688058U CN 211688058 U CN211688058 U CN 211688058U CN 202020029403 U CN202020029403 U CN 202020029403U CN 211688058 U CN211688058 U CN 211688058U
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Abstract
The utility model relates to a two leg supporting mechanism, include: a support beam; the first leg assembly can drive the supporting cross beam to move upwards and lift; the second leg assembly can maintain the horizontal height of the supporting beam unchanged or can drive the supporting beam to move upwards to rise, and by adopting the structure, the supporting beam and the spanning construction protection device can be driven to rise upwards to a higher height even if the driving stroke of the first leg assembly and the second leg assembly is smaller; the utility model also discloses a stride across construction protector, including a base, dispose a set of foretell two landing leg supporting mechanism on the base at least. The production cost of the crossing construction protection device can be reduced, and the crossing construction protection device can be driven to move upwards to rise different heights so as to be suitable for loading and transporting of trucks with different heights, so that loading or unloading of the crossing construction protection device is simpler and more convenient.
Description
Technical Field
The utility model relates to a stride across construction field, especially a two landing leg supporting mechanism and stride across construction protector.
Background
With the comprehensive construction and the investment operation of domestic railways, the construction of newly-built power transmission line engineering crossing railways is inevitable. In order to ensure the safety of railway operation, corresponding protection operation must be carried out when the cross-track construction operation is carried out above the railway according to relevant regulations of railway departments.
In order to realize strideing across the railway fast and building the protection network, some strideing across construction protector have appeared on the present market, generally adopt following structure, including a base, movable mounting has a main support on the base, movable mounting has a crossbeam on the main support, and the end movable mounting of crossbeam has a pair support, and during the use, main support and vice support are located the both sides of railway respectively, and the crossbeam then is connected in the upper portion both ends of main support and vice main support, and then can pull on the crossbeam and establish the protection network, realize the protection operation.
In order to facilitate moving of the crossing construction protection device, a lorry is generally adopted for transportation, wherein in order to facilitate loading of the crossing construction protection device, four hydraulic cylinders are circumferentially arranged at the bottom of a base of the crossing construction protection device, movable rods of the four hydraulic cylinders are abutted to the ground and push the base to move upwards and rise, then the lorry is started to be positioned below the base, and the four hydraulic cylinders are decompressed so that the base slowly moves downwards and falls on a hopper of the lorry, so that loading of the crossing construction protection device is realized; the truck can transport the crossing construction protection device to a construction site, and then the four hydraulic cylinders on the base act again and abut against the ground to push the base upwards, so that the truck can be driven away, and the crossing construction protection device can be unloaded from the truck.
The above structure can realize loading or unloading of the spanning construction protection device. However, since the height of the hopper of the existing truck generally reaches 1.6 meters and the like, the base can be pushed to rise for 1.6 meters only by selecting a hydraulic cylinder with a larger stroke for the crossing construction protection device, so that the production cost of the crossing construction protection device is greatly increased, and a truck with the hopper height smaller than the stroke of the hydraulic cylinder is selected when the crossing construction protection device is transported every time, otherwise, the truck cannot be started to the lower part of the base, and the loading is very troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a double-leg supporting mechanism, which can still push the crossing construction protection device to rise upwards to a sufficient height without using a large-stroke hydraulic cylinder; the utility model discloses the second aspect provides an adopt above-mentioned two landing leg supporting mechanism's strideing construction protector, is convenient for stride across construction protector and loads in the car or from the uninstallation on the car.
In order to solve the technical problem, the utility model discloses a following technical scheme:
according to certain embodiments of the first aspect of the present invention, a dual-legged support mechanism includes:
a support beam;
the first leg assembly is arranged at one end of the supporting cross beam and can drive the supporting cross beam to move upwards and lift;
a second leg assembly disposed at an end of the support beam adjacent to the first leg assembly, the second leg assembly being capable of maintaining a constant level of the support beam or driving the support beam to move upward;
wherein the second leg assembly acts independently of the first leg assembly.
According to certain embodiments of the first aspect of the present invention, the first leg assembly is a first hydraulic cylinder disposed on the supporting beam, and a first piston rod of the first hydraulic cylinder faces downward.
According to some embodiments of the first aspect of the present invention, a first supporting bottom plate for increasing a contact area is installed at a free end of the first piston rod.
According to certain embodiments of the first aspect of the present invention, the second leg assembly comprises:
the movable sleeve is fixedly arranged on the supporting beam, and the side wall of the movable sleeve is at least provided with a bolt hole;
the movable rod is movably arranged in the movable sleeve, and the side wall of the movable rod is at least provided with two positioning holes which are sequentially arranged along the vertical direction;
the bolt is movably arranged in the bolt hole, and the bolt can be simultaneously penetrated in the bolt hole and one of the positioning holes.
According to the utility model discloses some embodiments of first aspect, the second landing leg subassembly still include a fixed mounting in second pneumatic cylinder on the supporting beam, the second piston rod of second pneumatic cylinder with the movable rod is connected, the second pneumatic cylinder passes through the second piston rod can drive the movable rod reciprocates in the vertical direction.
According to the utility model discloses some embodiments of first aspect, be provided with a connecting seat on the periphery wall of movable rod, install connecting pin axle on the connecting seat, connecting pin axle with second piston rod activity is connected.
According to certain embodiments of the first aspect of the present invention, a second supporting bottom plate for increasing the contact area is further installed at the bottom of the movable rod.
The number of the bolt holes is two, and the two bolt holes are sequentially arranged on the side wall of the movable sleeve along the vertical direction; the bolt is movably inserted into one of the bolt holes.
According to the utility model discloses a stride across construction protector of some embodiments of second aspect, include:
the base is at least provided with a group of the double-supporting-leg supporting mechanisms, and one end of the supporting cross beam, which is far away from the first supporting-leg assembly, is connected with the base.
According to certain embodiments of the second aspect of the present invention, four sets of the dual-leg supporting mechanism are disposed on the base, and the four sets of the dual-leg supporting mechanism are uniformly distributed along the periphery of the base.
The utility model has the advantages that: because the double-leg supporting mechanism of the utility model is provided with the first leg component and the second leg component which can act independently, the first leg component and the second leg component can be sequentially and alternately abutted against the supporting pieces with different heights to push the supporting beam to be continuously raised upwards, and then the supporting beam can drive the crossing construction protection device connected with the supporting beam to be continuously raised upwards;
the utility model discloses a stride across construction protector both can reduce the manufacturing cost who stridees across construction protector through adopting foretell two landing leg supporting mechanism, can drive simultaneously and stride across construction protector rebound and raise different heights to be applicable to the lorry loading transportation of co-altitude not, thereby make the loading or unloading of strideing across construction protector simple and convenient more.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a dual-legged support mechanism according to some embodiments of the first aspect of the present invention;
FIG. 2 is a schematic structural view of a construction crossing guard according to some embodiments of the second aspect of the present disclosure;
fig. 3 is an enlarged schematic view of a point a in fig. 2.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are three or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. The description of first, second, etc. if any, is for the purpose of distinguishing between technical features and not intended to indicate or imply relative importance or implicitly indicate a number of indicated technical features or implicitly indicate a precedence relationship of indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 3, in some embodiments of the first aspect of the present invention, a dual-leg supporting mechanism includes a supporting beam 100 having a substantially straight rod shape, the supporting beam 100 may also be configured into other shapes, such as a cylinder shape, a rectangular parallelepiped shape, a polygonal cylinder shape, etc., and may be freely configured according to actual requirements, a first leg assembly 200 and a second leg assembly 300 are disposed at one end of the supporting beam 100, and the first leg assembly 200 may drive the supporting beam 100 to move upward and rise; the second leg assembly 300 is disposed at an end of the supporting beam 100 adjacent to the first leg assembly 200, the second leg assembly 300 can maintain the horizontal height of the supporting beam 100 unchanged or the second leg assembly 300 can drive the supporting beam 100 to move upwards to be lifted therein, and the second leg assembly 300 and the first leg assembly 200 act independently.
The utility model discloses a two leg supporting mechanism's in some embodiments of first aspect theory of operation as follows:
the first leg assembly 200 abuts against the ground and applies force to the ground, at this time, the first leg assembly 200 drives the supporting beam 100 and the second leg assembly 300 to move upwards to rise to a certain height, then a first pier (not shown in the figure) made of stone or steel is placed below the second leg assembly 300, at this time, the second leg assembly 300 acts and abuts against the first pier to maintain the horizontal height of the supporting beam 100 unchanged, then a second pier (not shown in the figure) with a higher height can be placed below the first leg assembly 200, then the first leg assembly 200 acts and abuts against the second pier, then the first leg assembly 200 continuously applies force to the second pier and drives the supporting beam 100 and the second leg assembly 300 to continue to rise upwards to a certain height, then a third pier (not shown in the figure) with a horizontal height higher than that of the second pier is placed below the second leg assembly 300, the second leg assembly 300 acts and abuts against the third pier to maintain the horizontal height of the supporting beam 100 unchanged, then a fourth pier (not shown) with a horizontal height higher than that of the third pier can be placed below the first leg assembly 200, then the first leg assembly 200 acts and abuts against the fourth pier, then the first leg assembly 200 continuously applies force to the fourth pier and drives the supporting beam 100 and the second leg assembly 300 to continuously rise upwards for a certain height, and the process is repeated, so that the supporting beam 100 can still be driven to move upwards to rise to a height high enough by the first leg assembly 200 and the second leg assembly 300 under the condition of a small stroke;
or, the first leg assembly 200 abuts against the ground and applies force to the ground, at this time, the first leg assembly 200 drives the supporting beam 100 and the second leg assembly 300 to move upward to rise by a certain height, then a first pier (not shown in the figure) made of stone or steel is placed below the second leg assembly 300, at this time, the second leg assembly 300 acts and abuts against the first pier, then the second leg assembly 300 continuously applies force to the first pier and drives the supporting beam 100 and the first leg assembly 200 to continue rising by a certain height, then a second pier (not shown in the figure) with a higher height can be placed below the first leg assembly 200, then the first leg assembly 200 acts and abuts against the second pier, then the first leg assembly 200 continuously applies force to the second pier and drives the supporting beam 100 and the second leg assembly 300 to continue rising by a certain height, a third pier (not shown) with a height higher than that of the second pier may then be placed under the second leg assembly 300, and then the second leg assembly 300 acts and cooperates with the third pier to drive the supporting beam 100 and the first leg assembly 200 to continue to rise upward by a certain height, and so on, so that the supporting beam 100 can still be driven to move upward by the first leg assembly 200 and the second leg assembly 300 to rise by a sufficient height with a small driving stroke.
Because the utility model discloses a two landing leg supporting mechanism disposes first landing leg subassembly 200 and second landing leg subassembly 300 that can mutually independent action through the one end at supporting beam 100, consequently first landing leg subassembly 200 and second landing leg subassembly 300 can be in proper order alternately the butt on the support piece of co-altitude not, constantly upwards rise in order to promote supporting beam 100, and then supporting beam 100 can drive the leap over construction protector that is connected rather than constantly upwards rise, through adopting foretell structure, even adopt first landing leg subassembly 200 and second landing leg subassembly 300 that the stroke is less, still can drive supporting beam 100 and leap over construction protector upwards rise higher height, both can reduction in production cost, satisfy the rebound simultaneously and rise the demand of leap over construction protector to a take a height. The supporting member may be a pier, a stool, a support rod, a support seat, or the like, and may be selected according to actual requirements.
Referring to fig. 1, in order to make the structure of the dual-leg supporting mechanism simpler, in some embodiments of the first aspect of the present invention, the first leg assembly 200 is a first hydraulic cylinder disposed on the supporting beam 100, and a first piston rod 210 of the first hydraulic cylinder faces downward. It is conceivable that the first leg assembly 200 may be replaced by an air cylinder, or the first leg assembly 200 includes a motor (not shown), an output shaft of the motor is connected to a lead screw (not shown), the supporting beam 100 is provided with a threaded hole (not shown), the lead screw is threadedly installed in the threaded hole, when the motor drives the lead screw to rotate forward or reversely, the lead screw can move downward or upward relative to the supporting beam 100, and further drives the supporting beam 100 to move upward or downward.
Further, in order to avoid the first piston rod 210 from crushing the ground or the supporting member, in some embodiments of the present invention, a first supporting bottom plate 211 for increasing the contact area is installed at the free end of the first piston rod 210. The contact area between the first piston rod 210 and the ground or the supporting member is increased by the first supporting bottom plate 211, so that the first piston rod 210 is prevented from crushing the ground or the supporting member.
In order to simplify the structure of the dual-leg supporting mechanism and enable the second leg assembly 300 to maintain the horizontal height of the supporting beam 100 or push the supporting beam 100 to move upward and rise, in some embodiments of the first aspect of the present invention, the second leg assembly 300 includes a movable sleeve 310 fixedly disposed on the supporting beam 100, and a sidewall of the movable sleeve 310 is at least provided with a pin hole 311; the movable sleeve 310 is movably provided with a movable rod 320 which can move up and down relative to the movable sleeve, and the side wall of the movable rod 320 is provided with at least two positioning holes 321 which are sequentially arranged along the vertical direction; a bolt 330 is movably installed in the bolt hole 311, and the bolt 330 can be simultaneously inserted into the bolt hole 311 and one of the positioning holes 321.
When the supporting beam 100 rises to a certain horizontal height, the movable rod 320 can move downwards along the movable sleeve 310 and abut against the supporting surface, and at the same time, the latch 330 is simultaneously inserted into the latch hole 311 and one of the positioning holes 321, so as to lock the relative position of the movable rod 320 and the movable sleeve 310, and ensure that the movable rod 320 does not move relative to the movable sleeve 310, so that the movable rod 320 can support the supporting beam 100 and maintain the horizontal height of the supporting beam 100 unchanged. And because the relative position of the movable rod 320 and the movable sleeve 310 locked by the bolt 330 belongs to mechanical locking, except that the bolt 330 is broken off or the bolt 330 is disengaged from the positioning hole 321, the relative position of the movable rod 320 and the movable sleeve 310 is locked to be fixed, and further the movable rod 320 can support and support the supporting beam 100 for a long time, so that the supporting beam 100 cannot drop accidentally, and the safety is ensured.
It is envisioned that the second leg assembly 300 may be a pneumatic or hydraulic cylinder, whereby the support surfaces are also abutted, and the horizontal height of the support beam 100 is maintained. Alternatively, the second leg assembly 300 may be replaced with a motor and screw mechanism. Moreover, the second leg assembly 300 is a pneumatic or hydraulic cylinder, and the second leg assembly 300 can drive the supporting beam 100 to move upwards and rise.
Further, in order to facilitate the driving of the movable rod 320 to move up and down relative to the movable sleeve 310, in some embodiments of the first aspect of the present invention, the second leg assembly 300 further includes a second hydraulic cylinder 340 fixedly installed on the supporting beam 100, a second piston rod 341 of the second hydraulic cylinder 340 is connected to the movable rod 320, and the second hydraulic cylinder 340 can drive the movable rod 320 to move up and down in the vertical direction through the second piston rod 341. By adopting the structure, when the position of the movable rod 320 needs to be adjusted, the second hydraulic cylinder 340 can be used for driving the movable rod 320 to move up and down, and the structure is simple and convenient.
Wherein, in order to make the second piston rod 341 can be better connected with the movable rod 320, in certain embodiments of the first aspect of the present invention, a connecting seat 322 is provided on the peripheral wall of the movable rod 320, a connecting pin 323 is installed on the connecting seat 322, and the connecting pin 323 is movably connected with the second piston rod 341. By adopting the above-described structure, the connection of the second piston rod 341 and the movable lever 320 is made simpler.
In order to avoid the movable rod 320 from crushing the ground or the supporting member, in some embodiments of the first aspect of the present invention, a second supporting bottom plate 324 for increasing the contact area is further installed at the bottom of the movable rod 320.
Further, in order to finely adjust the relative position between the movable rod 320 and the movable sleeve 310, in some embodiments of the first aspect of the present invention, the number of the latch holes 311 is two, and the two latch holes 311 are sequentially disposed on the sidewall of the movable sleeve 310 along the vertical direction, so that, in the using process, a latch 330 can be installed in one of the latch holes 311, and then the latch 330 is inserted into one of the positioning holes 321 on the movable rod 320. By adopting the above structure, different bolt holes 311 can be adopted to match with the positioning holes 321, so as to achieve the purpose of fine adjustment of the relative position of the movable rod 320 and the movable sleeve 310.
Referring to fig. 1, 2 and 3, a crossing construction protector according to some embodiments of the second aspect of the present invention includes a base 400, at least one set of the above-mentioned dual-legged supporting mechanism is disposed on the base 400, and an end of the supporting beam 100 of the dual-legged supporting mechanism, which is far away from the first leg assembly 200, is connected to the base 400. In order to make the dual-leg supporting mechanism more stable and support the base 400, in some embodiments of the second aspect of the present invention, four sets of dual-leg supporting mechanisms are disposed on the base 400, and the four sets of dual-leg supporting mechanisms are uniformly distributed along the periphery of the base 400.
The utility model discloses a stride across construction protector both can reduce the manufacturing cost who stridees across construction protector through adopting foretell two landing leg supporting mechanism, can drive simultaneously and stride across construction protector rebound and raise different heights to be applicable to the lorry loading transportation of co-altitude not, thereby make the loading or unloading of strideing across construction protector simple and convenient more.
In addition, because the crossing construction protection device adopts the above-mentioned double-leg supporting mechanism, when the crossing construction protection device is in use, the first leg assembly 200 and the second leg assembly 300 of the double-leg supporting mechanism can be abutted against a supporting surface (such as the ground) at the same time, and the first leg assembly 200 and the second leg assembly 300 are abutted against the supporting surface at the same time, so that the contact area between the crossing construction protection device and the supporting surface is increased, the supporting surface can be prevented from being crushed, and the crossing construction protection device can be placed more firmly, moreover, because the second leg assembly 300 adopts the bolt 330 to lock the relative position of the movable rod 320 and the movable sleeve 310, the locking mode belongs to mechanical locking, except that the bolt 330 is broken or the bolt 330 is disengaged from the positioning hole 321, the relative position of the locking movable rod 320 and the movable sleeve 310 is fixed, and further the movable rod 320 can support and bear the supporting beam 100 for a long time, guarantee that supporting beam 100 can not unexpected the descending, and then make second leg assembly 300 can support and stride across the construction protector and be under construction for a long time, and can not appear leading to strideing across the problem that construction protector inclines or collapses because of second leg assembly 300 shrink, solved present stride across construction protector adopt hydraulic cylinder to support for a long time appear leading to striding across the problem that construction protector inclines or collapses because of the pneumatic cylinder oil impregnate easily when having solved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A dual-legged support mechanism, comprising:
a support beam (100);
a first leg assembly (200), wherein the first leg assembly (200) is arranged at one end of the supporting beam (100), and the first leg assembly (200) can drive the supporting beam (100) to move upwards and lift;
a second leg assembly (300), wherein the second leg assembly (300) is arranged at one end of the supporting beam (100) adjacent to the first leg assembly (200), the second leg assembly (300) can maintain the horizontal height of the supporting beam (100) unchanged or the second leg assembly (300) can drive the supporting beam (100) to move upwards to be lifted;
wherein the second leg assembly (300) acts independently of the first leg assembly (200).
2. A dual legged support mechanism as claimed in claim 1, wherein:
the first leg assembly (200) is a first hydraulic cylinder arranged on the supporting beam (100), and a first piston rod (210) of the first hydraulic cylinder faces downwards.
3. A dual legged support mechanism as claimed in claim 2, wherein:
a first supporting bottom plate (211) used for increasing the contact area is installed at the free end of the first piston rod (210).
4. A dual leg support mechanism according to claim 1, 2 or 3,
the second leg assembly (300) comprises:
the movable sleeve (310) is fixedly arranged on the supporting cross beam (100), and the side wall of the movable sleeve (310) is provided with at least one bolt hole (311);
the movable rod (320) is movably arranged in the movable sleeve (310), and the side wall of the movable rod (320) is provided with at least two positioning holes (321) which are sequentially arranged along the vertical direction;
the bolt (330) is movably arranged in the bolt hole (311), and the bolt (330) can be simultaneously penetrated in the bolt hole (311) and one positioning hole (321).
5. A dual legged support mechanism according to claim 4,
the second leg assembly (300) further comprises a second hydraulic cylinder (340) fixedly mounted on the supporting beam (100), a second piston rod (341) of the second hydraulic cylinder (340) is connected with the movable rod (320),
the second hydraulic cylinder (340) can drive the movable rod (320) to move up and down in the vertical direction through the second piston rod (341).
6. A dual legged support mechanism as claimed in claim 5, wherein:
the outer peripheral wall of the movable rod (320) is provided with a connecting seat (322), a connecting pin shaft (323) is installed on the connecting seat (322), and the connecting pin shaft (323) is movably connected with the second piston rod (341).
7. A dual legged support mechanism as claimed in claim 4, wherein:
and a second supporting bottom plate (324) for increasing the contact area is also arranged at the bottom of the movable rod (320).
8. A dual legged support mechanism according to claim 4,
the number of the bolt holes (311) is two, and the two bolt holes (311) are sequentially arranged on the side wall of the movable sleeve (310) along the vertical direction;
the bolt (330) is movably inserted into one of the bolt holes (311).
9. A construction spanning protection device, comprising:
a base (400), at least one set of the dual-leg support mechanism of any one of claims 1 to 8 being disposed on the base (400), and an end of the support beam (100) remote from the first leg assembly (200) being connected to the base (400).
10. A construction crossing guard according to claim 9,
four groups of double-supporting-leg supporting mechanisms are arranged on the base (400), and the four groups of double-supporting-leg supporting mechanisms are uniformly distributed along the periphery of the base (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020029403.XU CN211688058U (en) | 2020-01-07 | 2020-01-07 | Double-support-leg supporting mechanism and crossing construction protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020029403.XU CN211688058U (en) | 2020-01-07 | 2020-01-07 | Double-support-leg supporting mechanism and crossing construction protection device |
Publications (1)
| Publication Number | Publication Date |
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| CN211688058U true CN211688058U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020029403.XU Active CN211688058U (en) | 2020-01-07 | 2020-01-07 | Double-support-leg supporting mechanism and crossing construction protection device |
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| Country | Link |
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| CN (1) | CN211688058U (en) |
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2020
- 2020-01-07 CN CN202020029403.XU patent/CN211688058U/en active Active
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