CN217129549U - Trolley supporting device and trolley supporting system - Google Patents
Trolley supporting device and trolley supporting system Download PDFInfo
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- CN217129549U CN217129549U CN202221086112.XU CN202221086112U CN217129549U CN 217129549 U CN217129549 U CN 217129549U CN 202221086112 U CN202221086112 U CN 202221086112U CN 217129549 U CN217129549 U CN 217129549U
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a platform truck strutting arrangement, platform truck braced system, platform truck strutting arrangement includes: the connecting plate is used for connecting the bottom of the portal; the supporting component is provided with a limiting part; the screw rod assembly penetrates through the limiting part of the supporting assembly and is overlapped with the supporting assembly in the axial direction, and the part of the screw rod assembly, which penetrates out of the supporting assembly, is connected to the connecting plate; the nut is in threaded connection with the screw rod assembly and is positioned in the limiting part so as to limit the moving distance of the nut relative to the supporting assembly along the axial direction of the screw rod assembly. The utility model provides an hungry platform truck strutting arrangement passes the supporting component setting with the lead screw subassembly, makes both have in the axial of lead screw subassembly and overlaps, under the condition of same support height, can reduce the holistic height of platform truck strutting arrangement accepting state.
Description
Technical Field
The utility model relates to a platform truck technical field, more specifically say, relate to a platform truck strutting arrangement. Furthermore, the utility model discloses still relate to a platform truck braced system including above-mentioned platform truck strutting arrangement.
Background
In the process of tunnel lining, a lining trolley and a steel mould trolley gradually replace an artificial template, and when the trolley is used for secondary lining, after the template and a portal frame supporting the template are lifted to a specified height by a lifting mechanism, in order to ensure that deformation larger than an allowable value does not occur in the lining process, a series of supporting devices are required to be arranged below the portal frame. The supporting device can be contracted when the supporting device runs, and can be extended and supported to the ground to bear the weight of the whole machine and concrete when the concrete is poured during lining. The supporting rods can be arranged between the template and the portal frame, pressure applied to the template is transmitted to the portal frame, and the bottom of the portal frame cannot be provided with the transverse supporting rods but only with the inclined supporting rods due to the existence of the walking mechanism and the supporting device.
The supporting device of the lining trolley generally adopts a screw rod mechanism to realize extension and bearing, and mainly comprises two forms, namely a single supporting surface of a single wire rod, and a bottom surface of the single wire rod is supported on a track surface; the bottom surface of the single-screw rod single supporting surface is supported on the ground beside the track; the bottom surface of the double-screw rod double-support surface is supported on the ground beside the track; the single screw rod has double supporting surfaces, and the bottom surface of the single screw rod is supported on the ground beside the track.
In the prior art, the jack assembly is in threaded engagement with the screw rod assembly, the pressure head at the lower end of the screw rod assembly is connected with the upper end face of the base assembly, and the screw rod is rotated to realize lifting. If the height of the supporting device is too high, the angle of the inclined strut is larger. The supporting device is compact in structure, the length of the lowest inclined strut between the side template and the portal frame can be effectively reduced, the angle of the inclined strut is reduced, and the rigidity of the inclined strut is improved.
In summary, how to reduce the height of the trolley supporting device is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a trolley supporting device, which can reduce the overall height of the trolley supporting device in the accommodating state by passing the screw rod assembly through the supporting assembly to overlap the screw rod assembly in the axial direction thereof and to have the same supporting height.
Another object of the present invention is to provide a trolley support system including the above trolley support device.
In order to achieve the above object, the present invention provides the following technical solutions:
a trolley support device comprising:
the connecting plate is used for connecting the bottom of the portal;
the supporting component is provided with a limiting part;
the screw rod assembly penetrates through the limiting part of the supporting assembly and is overlapped with the supporting assembly in the axial direction, and the part of the screw rod assembly, which penetrates out of the supporting assembly, is connected to the connecting plate;
the nut is in threaded connection with the screw rod assembly and is positioned in the limiting part so as to limit the moving distance of the nut relative to the supporting assembly along the axial direction of the screw rod assembly.
Optionally, the screw rod assembly comprises a screw rod seat fixedly arranged on the connecting plate and a screw rod fixedly arranged on the screw rod seat; the screw rod penetrates through the limiting part.
Optionally, a threaded hole is formed in one end, facing the screw rod seat, of the screw rod, the screw rod seat comprises a first bottom plate and a sleeve arranged at the lower part of the first bottom plate, and the first bottom plate is provided with a first through hole corresponding to the threaded hole;
the sleeve is sleeved at the end part of the screw rod, and a screw passes through the first through hole to be connected with the threaded hole.
Optionally, the limiting part comprises a beam and a limiting plate arranged on the upper part of the beam, and the nut is located between the beam and the limiting plate;
the crossbeam with the limiting plate all is provided with and is used for making the second through-hole that the lead screw passed.
Optionally, the limiting plate comprises a top plate and a bent plate bent downwards along the periphery of the top plate, and the bent plate is connected with the cross beam;
the nut is located the space that limiting plate and crossbeam enclose established, just the inside dimension of bent plate is greater than the external diameter of nut.
Optionally, the bottom surface of the cross beam is provided with symmetrically arranged support legs and a second bottom plate arranged at the bottoms of the support legs.
Optionally, the periphery of the nut is provided with a plurality of handles that facilitate rotation.
A trolley supporting system comprises the trolley supporting device, a portal frame and a track, wherein the top of the trolley supporting device is connected with the portal frame, and the middle section of the track in the width direction is coincided with the middle section of the trolley supporting device in the width direction.
In the process of using the trolley supporting device provided by the utility model, firstly, the connecting plate is required to be connected with the portal frame, when the portal frame is required to be supported, the nut is rotated to enable the screw rod component to move towards the connecting plate relative to the supporting component, so that the supporting component is contacted with the ground, and the force is transmitted to the supporting component and the ground by the screw rod component; when the portal frame does not need to be supported, the nut is rotated, the screw rod assembly moves towards the ground relative to the supporting assembly, so that the supporting assembly is in a suspension state, and the weight of the supporting assembly is transmitted to the screw rod assembly through the nut.
Compared with the prior art, the utility model provides an hungry platform truck strutting arrangement passes the supporting component setting with the lead screw subassembly, makes both have the overlap in the axial of lead screw subassembly, under the condition of same support height, can reduce the holistic height of platform truck strutting arrangement state of accomodating.
Furthermore, the utility model also provides a platform truck braced system including above-mentioned platform truck strutting arrangement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a trolley support system provided in the present invention;
FIG. 2 is a schematic partial cross-sectional view of FIG. 1 in a side view;
fig. 3 is a schematic structural view of the trolley supporting device provided by the present invention;
FIG. 4 is a top view of the trolley support of FIG. 3;
FIG. 5 is a side view of the trolley support of FIG. 3;
FIG. 6 is a schematic structural view of the support assembly;
FIG. 7 is a top view of the screw boss;
fig. 8 is a schematic sectional view taken along the direction a-a in fig. 7.
In fig. 1-8:
the device comprises a track 1, a trolley 2, a gantry 3, a connecting plate 4, a screw rod seat 5, a first fastening piece 6, a nut 7, a supporting component 8, a screw rod component 9, a second fastening piece 10, a limiting plate 11, a cross beam 12, a supporting leg 13, a second bottom plate 14, a first bottom plate 15 and a sleeve 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a trolley supporting device passes the supporting component setting with the lead screw subassembly, makes both have the overlap in the axial of lead screw subassembly, under the condition of same support height, can reduce the holistic height of trolley supporting device accepting state. Another core of the present invention is to provide a trolley support system including the above trolley support device.
Please refer to fig. 1-8.
The trolley supporting device 2 is mainly used for supporting structures such as a portal frame 3 and a template in the tunnel lining process, and can be applied to other scenes and is determined according to actual conditions.
This particular embodiment discloses a platform truck strutting arrangement 2 includes:
the connecting plate 4 is used for connecting the bottom of the portal 3;
a support component 8 provided with a limit part;
the screw rod assembly 9 penetrates through the limiting part of the support assembly 8 and is overlapped with the support assembly 8 in the axial direction, and the part of the screw rod assembly 9, which penetrates out of the support assembly 8, is connected to the connecting plate 4;
and the nut 7 is in threaded connection with the lead screw assembly 9, and the nut 7 is positioned in the limiting part so as to limit the moving distance of the nut 7 relative to the support assembly 8 along the axial direction of the lead screw assembly 9.
In the process of using the trolley supporting device 2 provided by the embodiment, firstly, the connecting plate 4 needs to be connected with the gantry 3, when the gantry 3 needs to be supported, the nut 7 is rotated, the lead screw assembly 9 moves towards the direction of the connecting plate 4 relative to the supporting assembly 8, so that the supporting assembly 8 is in contact with the ground, and the force is transmitted to the supporting assembly 8 and the ground through the lead screw assembly 9; when the portal frame 3 is not required to be supported, the nut 7 is rotated, the screw rod assembly 9 moves towards the ground relative to the support assembly 8, so that the support assembly 8 is in a suspended state, and the weight of the support assembly 8 is transmitted to the screw rod assembly 9 through the nut 7.
Compared with the prior art, the trolley supporting device 2 provided by the embodiment has the advantages that the screw rod assembly 9 penetrates through the supporting assembly 8, so that the screw rod assembly 9 and the supporting assembly are overlapped in the axial direction of the screw rod assembly 9, and the overall height of the trolley supporting device 2 in the storage state can be reduced under the condition of the same supporting height.
In one embodiment, as shown in fig. 3, the screw assembly 9 includes a screw base 5 fixed to the connecting plate 4 and a screw wound around the screw base 5; the screw rod penetrates through the limiting part.
As shown in fig. 3, 7 and 8, a threaded hole is formed in one end of the screw rod facing the screw rod seat 5, the screw rod seat 5 comprises a first bottom plate 15 and a sleeve 16 arranged at the lower part of the first bottom plate 15, and the first bottom plate 15 is provided with a first through hole corresponding to the threaded hole; the sleeve 16 is sleeved on the end part of the screw rod, and the screw penetrates through the first through hole to be connected with the threaded hole.
The screw rod seat 5 is connected to the connecting plate 4 through a first fastening piece 6, and the first fastening piece 6 can be a screw, a bolt and the like; the screw is connected to the screw seat 5 through a second fastener 10, and the second fastener 10 can be a screw or other structures meeting the requirement.
As shown in fig. 4, the connection plate 4 is provided with a circular hole for the convenience of mounting the screw.
The connecting plate 4 may be connected to the gantry 3 by welding or bolts, or of course, may be connected in other connection manners meeting the requirements, which are not described herein.
In this embodiment, the screw seat 5 is provided to facilitate the fixed connection of the screw with the connecting plate 4, so that the assembling process is more convenient.
In another embodiment, as shown in fig. 6, the supporting assembly 8 includes a beam 12, a limiting plate 11, a leg 13 and a second bottom plate 14, and the limiting part includes the beam 12 and the limiting plate 11 disposed on the upper portion of the beam 12, and the nut 7 is located between the beam 12 and the limiting plate 11; the beam 12 and the limit plate 11 are both provided with a second through hole for the screw rod to pass through.
Preferably, the cross beam 12 and the support legs 13 are square tubes and are formed by welding steel plates or profiles, and can be hollow structures with other shapes, and the hollow structures can effectively save material cost, reduce the weight of the trolley supporting device 2 and facilitate transfer and transportation.
In the process of installation, the screw rod penetrates through the second through hole, and the part extending out of the limit plate 11 is connected with the screw rod seat 5.
The limiting plate 11 comprises a top plate and a bent plate bent downwards along the periphery of the top plate, and the bent plate is connected with the cross beam 12;
the nut 7 is located in a space surrounded by the limiting plate 11 and the beam 12, and the inner dimension of the bent plate is larger than the outer diameter of the nut 7, so that the nut 7 can normally rotate.
Preferably, a plurality of handles for facilitating rotation may be provided on the outer circumference of the nut 7. The handles can be arranged to protrude out of the peripheral side surface of the nut 7, and the number of the handles can be one or more, and is determined according to actual conditions.
In the using process, when the portal 3 needs to be supported, the nut 7 is rotated, the screw rod moves towards the direction of the connecting plate 4 relative to the cross beam 12, the lower surface of the nut 7 is in contact with the cross beam 12, so that the support assembly 8 is in contact with the ground, and the force is transmitted to the support assembly 8 and the ground through the screw rod assembly 9; when the portal 3 is not required to be supported, the nut 7 is rotated to enable the screw rod to move towards the ground relative to the cross beam 12, the upper surface of the nut 7 is in contact with the limiting plate 11, so that the support assembly 8 is in a suspended state, and the weight of the support assembly 8 is transmitted to the screw rod assembly 9 through the nut 7.
In addition to the above supporting device, the present invention further provides a supporting system for a trolley, which includes the supporting device, the gantry 3 and the track 1 disclosed in the above embodiments, and the structure of other parts of the supporting system for a trolley is referred to the prior art, which is not repeated herein.
In the present embodiment, as shown in fig. 1 and 2, the top of the trolley support 2 is connected to the gantry 3, and the middle section of the track 1 in the width direction coincides with the middle section of the trolley support 2 in the width direction; the width direction of the carriage support device 2 as shown in fig. 2 refers to the connecting direction between the adjacent two legs 13.
The references to first fastener 6 and second fastener 10, first and second of the first and second through holes, are merely for distinguishing the difference in position and are not intended to be sequential.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.
It is right above that the utility model provides a platform truck strutting arrangement, platform truck braced system have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A trolley support device, comprising:
the connecting plate (4) is connected to the bottom of the door frame (3);
a support component (8) provided with a limiting part;
the screw rod assembly (9) penetrates through the limiting part of the supporting assembly (8) and is overlapped with the supporting assembly (8) in the axial direction, and the part, penetrating out of the supporting assembly (8), of the screw rod assembly (9) is connected to the connecting plate (4);
the nut (7) is in threaded connection with the screw rod assembly (9), and the nut (7) is located in the limiting portion to limit the moving distance of the nut (7) relative to the supporting assembly (8) along the axial direction of the screw rod assembly (9).
2. The trolley support device according to claim 1, wherein the screw assembly (9) comprises a screw base (5) fixed to the connecting plate (4) and a screw fixed to the screw base (5); the screw rod penetrates through the limiting part.
3. The trolley support device according to claim 2, wherein the end of the screw rod facing the screw rod seat (5) is provided with a threaded hole, the screw rod seat (5) comprises a first bottom plate (15) and a sleeve (16) arranged at the lower part of the first bottom plate (15), the first bottom plate (15) is provided with a first through hole corresponding to the threaded hole;
the sleeve (16) is sleeved at the end part of the screw rod, and a screw penetrates through the first through hole to be connected with the threaded hole.
4. The trolley support device according to claim 1, wherein the limiting portion comprises a cross beam (12) and a limiting plate (11) disposed on the upper portion of the cross beam (12), and the nut (7) is located between the cross beam (12) and the limiting plate (11);
the cross beam (12) and the limiting plate (11) are provided with second through holes for the screw rod to pass through.
5. The trolley support device according to claim 4, characterized in that said limit plate (11) comprises a top plate and a bent plate bent downwards along the periphery of said top plate, said bent plate being connected with said cross beam (12);
the nut (7) is located in a space surrounded by the limiting plate (11) and the cross beam (12), and the inner size of the bent plate is larger than the outer diameter of the nut (7).
6. Trolley support arrangement according to claim 5, characterised in that the bottom surface of the cross beam (12) is provided with symmetrically arranged legs (13) and a second floor (14) arranged at the bottom of the legs (13).
7. Trolley support device according to any of the claims 1-6 characterised in that the periphery of the nut (7) is provided with several handles facilitating turning.
8. A trolley support system comprising a trolley support as claimed in any one of claims 1 to 7, a gantry (3) and a track (1), the top of the trolley support being connected to the gantry (3), the track (1) having a width-wise median cross-section coinciding with the width-wise median cross-section of the trolley support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086112.XU CN217129549U (en) | 2022-05-07 | 2022-05-07 | Trolley supporting device and trolley supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086112.XU CN217129549U (en) | 2022-05-07 | 2022-05-07 | Trolley supporting device and trolley supporting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129549U true CN217129549U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221086112.XU Active CN217129549U (en) | 2022-05-07 | 2022-05-07 | Trolley supporting device and trolley supporting system |
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| Country | Link |
|---|---|
| CN (1) | CN217129549U (en) |
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- 2022-05-07 CN CN202221086112.XU patent/CN217129549U/en active Active
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