CN220955597U - Auxiliary bench platform extension and expansion mechanism - Google Patents

Abstract

The utility model discloses an auxiliary bench platform extension expansion mechanism which comprises a mounting top plate, wherein bench I-shaped steel foundations are arranged on two sides of the bottom end of the mounting top plate, a plurality of diagonal braces matched with the mounting top plate are arranged at one end of each bench I-shaped steel foundation, a working platform is arranged at the top and the bottom of the other end of each bench I-shaped steel foundation, a folding mechanism is arranged at one end of each working platform, platform reinforcing I-shaped steel matched with each bench I-shaped steel foundation is arranged on two sides of each working platform, a plurality of supporting components matched with each bench I-shaped steel foundation are arranged at the bottom end of each working platform, and a moving component is arranged at the bottom end of each bench I-shaped steel foundation. The utility model has scientific and novel structure, can expand the platform at any time according to actual needs through folding and telescopic design, and provides enough working space for workers, thereby realizing flexible adjustment of working space and position and greatly improving construction efficiency.

Description

Auxiliary bench platform extension and expansion mechanism

Technical Field

The utility model relates to the technical field of tunnel construction equipment, in particular to an auxiliary bench platform extension mechanism.

Background

The tunnel construction is a complex engineering project, and because the inside of the tunnel is of a circular arc structure, constructors need to work on two sides of the tunnel, and an auxiliary rack is needed to provide a working platform for construction. The traditional fixed platform structure moves unsmoothly, and the dismouting is comparatively complicated when not moving back and forth to auxiliary rack under the condition of using, brings inconvenience for the construction, and another is to adopt moving platform, but because platform and tunnel direct contact cause the platform to damage easily in the removal process, the platform repair also can influence the construction progress, in addition, along with the tunnel scale is constantly enlarged, the construction degree of difficulty also is increasing, consequently, how to design a more convenient auxiliary rack structure becomes the key, it needs to cover whole working face, provides sufficient space for tunnel construction, simultaneously protects the structure in order to avoid damaging when removing, and the dismouting of being convenient for is in order to adapt to different construction nodes, in order to improve whole efficiency of construction.

For example, chinese patent CN211474126U discloses a tunnel self-propelled excavation supporting rack, including the bottom plate, the equal perpendicular fixedly connected with bracing piece in bottom plate four corners position still includes the backup pad, and backup pad and bottom plate are parallel, and backup pad is equipped with on the bracing piece to be used for driving the gliding drive assembly of backup pad along bracing piece length direction sliding connection on the bracing piece, and it has the effect of convenient operating personnel operation. However, the tunnel-assisted tunnel self-propelled excavation supporting bench has the following defects in the specific application process: firstly, the device is of a fixed structure, is inconvenient to move when construction operation is not performed, and the installation and the disassembly processes of the fixed platform are complex, when the position of the platform is required to be moved, the existing platform is required to be removed firstly and then installed at a new position again, so that a large amount of manpower and material resources are consumed, and the construction efficiency is influenced; in addition, along with the deep tunneling, the width of the fixed platform is difficult to meet the construction requirement, and as the width of the fixed platform cannot be adjusted once being determined, the fixed platform cannot be flexibly adjusted according to the change of the section size of the tunnel, when the tunnel construction depth is increased, the platform space is insufficient, sufficient operation space cannot be provided for workers, at the moment, the original platform is required to be stopped, the original platform is removed, a new platform with larger width is reinstalled, the construction is continued, the construction progress is affected due to the fact that the platform is frequently replaced, the construction progress is not smooth, and the construction period is delayed.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of utility model

Aiming at the problems in the related art, the utility model provides an auxiliary bench platform extension and expansion mechanism for overcoming the technical problems existing in the prior art.

For this purpose, the utility model adopts the following specific technical scheme:

The utility model provides an auxiliary rack platform extends expanding mechanism, including the installation roof, the both sides of installation roof bottom all are provided with rack I-steel basis, the one end of rack I-steel basis is provided with a plurality of and installation roof matched with bracing, the other end top and the bottom of rack I-steel basis all are provided with work platform, work platform's one end is provided with folding mechanism, work platform's both sides all are provided with the platform reinforcing I-steel with rack I-steel basis matched with, work platform's bottom is provided with a plurality of and rack I-steel basis matched with supporting component, the bottom of rack I-steel basis is provided with moving component.

Further, in order to realize the extension and the extension function of platform, make folding platform can overturn around the back shaft and expand, thereby enlarge auxiliary rack platform's usable floor area, folding mechanism is including setting up the support base in work platform one end, the inboard of support base runs through and is provided with coupling assembling, coupling assembling's one end is provided with folding platform, coupling assembling is including the back shaft that runs through support base one end, one side of back shaft sets up to rectangular plane, rectangular plane's surface has seted up a plurality of mounting holes with folding platform matched with, the both ends of back shaft all are provided with the outer lane solid fixed ring with support base matched with, be provided with in the outer lane solid fixed ring with back shaft matched with inner circle solid fixed ring, be provided with a plurality of spherical rollers between outer lane solid fixed ring and the inner circle solid fixed ring.

Further, in order to realize providing stable support to fixed platform and folding platform through fixed sleeve and flexible inner tube, supporting component is including setting up the fixed sleeve in work platform bottom, and flexible groove has been seted up to fixed sleeve's one end, is provided with the flexible inner tube with folding mechanism matched with in the flexible groove.

Further, in order to realize the removal and the locate function of whole platform, improve auxiliary rack platform's utilization ratio, remove the subassembly and including setting up the installation shell in rack I-steel foundation bottom, the both sides on the inboard top of installation shell all are provided with the mounting panel, the bottom of mounting panel is provided with the mounting, the bottom of mounting is provided with wheel hub, wheel hub's outside cover is equipped with the tire, the outside of tire is provided with and mounting matched with annular brake caliper.

The beneficial effects of the utility model are as follows:

1. The utility model has scientific and novel structure, realizes the expansion of the space of the tunnel operation platform and the adjustment of the position by the cooperation of the folding mechanism, the supporting component and the moving component, and greatly improves the working efficiency and the adaptability of tunnel construction; in the tunneling process, the space of the fixed platform is smaller and smaller along with the deep development of construction, the folding and telescopic design of the mechanism can expand the platform at any time according to actual needs to provide enough working space for workers, meanwhile, the platform has the moving capability, the position can be changed at any time through moving the assembly, the rapid adjustment can be realized without erection and dismantling, and the requirement of multipoint operation in the tunnel is greatly facilitated; in addition, this expanding mechanism conveniently restores original volume after the extension, is convenient for remove and transport, can install through the tunnel smoothly, to the characteristics of tunnel construction, has realized the nimble adjustment of working space and position, has promoted the efficiency of construction by a wide margin, has improved auxiliary rack platform's practicality.

2. By arranging the folding mechanism and the supporting component, the extension and expansion functions of the platform are realized, the folding platform can be overturned and unfolded around the supporting shaft, the service area of the platform is enlarged, and when the platform is required to be reduced or transported, the folding platform can be overturned and reset, the occupied area is reduced, and the adaptability of the platform is greatly enhanced; meanwhile, the supporting component provides an important supporting function for the folding mechanism, the fixed platform and the folding platform are supported by the fixed sleeve and the telescopic inner tube, the length of the telescopic inner tube is adjustable, and the telescopic operation is simple and reliable; through supporting component and folding mechanism matched with, both guaranteed the expansibility of workspace, realized the convenience of transportation and installation again, make the platform keep sufficient stability under the extension state.

3. The movable assembly is arranged, so that the moving and positioning functions of the whole platform are realized, the movable assembly is arranged at the bottom end of the I-shaped steel foundation of the bench and is directly contacted with the ground, the weight of the whole platform and the operation load can be borne through the large diameter and the compression resistance of the tire, and meanwhile, the tire is arranged, so that the mechanism can quickly move, and the working efficiency is greatly improved; in addition, annular brake caliper suit can firmly lock the rotation of tire with the hooping power of annular brake caliper at the tire outer lane, realizes the location to rack I-steel basis to the user demand of auxiliary rack platform removal and location has been satisfied.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of an auxiliary gantry platform extension and expansion mechanism according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another angle configuration of an auxiliary gantry platform extension and expansion mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial structure of an auxiliary gantry platform extension and expansion mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a folding mechanism of an auxiliary gantry platform extension and expansion mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the connection assembly of the auxiliary gantry platform extension mechanism according to an embodiment of the present utility model;

fig. 6 is a partial enlarged view at a in fig. 3.

In the figure:

1. Installing a top plate; 2. a rack I-steel foundation; 3. diagonal bracing; 4. a working platform; 5. a folding mechanism; 501. a support base; 502. a connection assembly; 5021. a support shaft; 5022. a rectangular plane; 5023. a mounting hole; 5024. an outer ring fixing ring; 5025. an inner ring fixing ring; 5026. a spherical roller; 503. a folding platform; 6. reinforcing I-steel by a platform; 7. a support assembly; 701. fixing the sleeve; 702. a telescopic slot; 703. a telescopic inner tube; 8. a moving assembly; 801. a mounting shell; 802. a mounting plate; 803. a fixing member; 804. a hub; 805. a tire; 806. annular brake caliper.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, an auxiliary gantry platform extension mechanism is provided.

The utility model will now be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-6, an auxiliary platform extension mechanism according to an embodiment of the utility model includes a mounting top plate 1, two sides of the bottom end of the mounting top plate 1 are respectively provided with a rack i-steel foundation 2, one end of the rack i-steel foundation 2 is provided with a plurality of diagonal braces 3 matched with the mounting top plate 1, the top and the bottom of the other end of the rack i-steel foundation 2 are respectively provided with a working platform 4, one end of the working platform 4 is provided with a folding mechanism 5, two sides of the working platform 4 are respectively provided with a platform reinforcing i-steel 6 matched with the rack i-steel foundation 2, the bottom end of the working platform 4 is provided with a plurality of support assemblies 7 matched with the rack i-steel foundation 2, and the bottom end of the rack i-steel foundation 2 is provided with a moving assembly 8.

By means of the technical scheme, the tunnel construction device is scientific and novel in structure, expansion of the space of the tunnel operation platform and adjustment of the position are achieved through cooperation of the folding mechanism 5, the supporting component 7 and the moving component 8, and working efficiency and adaptability of tunnel construction are greatly improved; in the tunneling process, the space of the fixed platform is smaller and smaller along with deep development of construction, the folding and telescopic design of the mechanism can expand the platform at any time according to actual needs, so that enough operation space is provided for workers, meanwhile, the platform has moving capability, the position can be changed at any time through moving components, the rapid adjustment can be realized without erection and dismantling, the requirement of multi-point operation inside the tunnel is greatly met, and the construction efficiency is improved.

In one embodiment, for the folding mechanism 5 and the supporting component 7, the folding mechanism 5 includes a supporting base 501 disposed at one end of the working platform 4, a connecting component 502 is disposed on an inner side of the supporting base 501 in a penetrating manner, a folding platform 503 is disposed at one end of the connecting component 502, the connecting component 502 includes a supporting shaft 5021 extending through one end of the supporting base 501, a rectangular plane 5022 is disposed on one side of the supporting shaft 5021, a plurality of mounting holes 5023 matched with the folding platform 503 are formed on a surface of the rectangular plane 5022 (in addition, the folding platform 503 is connected with the mounting holes 5023 through bolts in a specific application), outer ring fixing rings 5024 matched with the supporting base 501 are disposed at two ends of the supporting shaft 5021 (in addition, in a specific application, the supporting shaft 5021 is connected with the supporting base 501 through bearings), inner ring fixing rings 5025 matched with the supporting shaft 5021 are disposed in the outer ring fixing rings 5024, annular ball tracks matched with the ball rollers 5026 are formed between the outer ring fixing rings 5024 and the inner ring fixing rings 5026 in a specific application, and the ball rollers 5026 are disposed between the fixing rings 5026; the support assembly 7 comprises a fixed sleeve 701 arranged at the bottom end of the working platform 4, a telescopic groove 702 is formed in one end of the fixed sleeve 701, a telescopic inner tube 703 matched with the folding mechanism 5 is arranged in the telescopic groove 702 (in addition, when the support assembly is applied specifically, a fastening ring is arranged at the end part of the fixed sleeve 701, and the telescopic inner tube 703 and the fastening ring are connected through bolts), so that the extension and expansion functions of the auxiliary bench platform are realized, and the auxiliary bench platform maintains sufficient stability under the extension state.

The folding mechanism 5 and the supporting component 7 work according to the following principle: firstly, the telescopic inner tube 703 is extracted from the telescopic groove 702, and then the length of the telescopic inner tube 703 extending out of the fixed sleeve 701 is adjusted and fixed, so that the telescopic inner tube 703 is propped against arc surfaces at two sides of a tunnel, and the stability of two sides of the I-steel foundation 2 of the bench is ensured; under the cooperation of the supporting shaft 5021 and the supporting base 501, the folding platform 503 at one side of the rectangular plane 5022 can rotate around the supporting shaft 5021, and the whole auxiliary bench platform can be extended and expanded by overturning and pressing the folding platform 503 onto the telescopic inner tube 703; when the device needs to be moved, the folding platform 503 is reversely turned and pressed onto the working platform 4, the telescopic inner pipe 703 is inserted back into the telescopic groove 702, and the auxiliary bench platform can be restored to the state before expansion.

In addition, when the support shaft 5021 drives the folding platform 503 to rotate, the spherical rollers 5026 roll in the annular ball channel between the outer ring fixing ring 5024 and the inner ring fixing ring 5025 to bear radial load and rotational friction, so that the load capacity of the connecting assembly 502 is improved.

In one embodiment, for the above-mentioned moving component 8, the moving component 8 includes a mounting shell 801 disposed at the bottom end of the i-steel foundation 2 of the stand, both sides of the top end of the inner side of the mounting shell 801 are provided with mounting plates 802, the bottom end of the mounting plates 802 is provided with a fixing member 803, the bottom end of the fixing member 803 is provided with a hub 804, the outer side of the hub 804 is sleeved with a tire 805, and the outer side of the tire 805 is provided with an annular brake caliper 806 matched with the fixing member 803, thereby realizing the moving and positioning functions of the whole platform and improving the utilization rate of the auxiliary stand platform.

In addition, it should be noted that, the annular brake caliper 806 adopts two semi-elliptical caliper bodies, and is connected into a ring shape through a bolt, and is coated on the outer ring of the tire 805, the inner surface of the annular brake caliper 806 is provided with a friction pad, and is in friction contact with the tire 805, and the annular brake caliper 806 can be contracted by pulling a handle of the brake caliper, so that the outer ring of the tire 805 is clamped for limiting, and when the handle is released, the spring resets the annular brake caliper 806 to end limiting.

The moving assembly 8 works on the principle that: the hub 804 can drive the tire 805 to freely rotate, so that the movable assembly 8 can drive the rack I-steel foundation 2 to move, and when the rack I-steel foundation 2 needs to be fixed, the tire 805 is limited to roll by locking the annular brake caliper 806, so that the rack I-steel foundation 2 is positioned; when the device needs to be moved, the annular brake caliper 806 is opened to finish the locking state of the tire 805, so that the moving assembly 8 can drive the reset rack I-steel foundation 2 to move freely.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

In practical application, before tunnel construction is performed, the carriage I-steel foundation 2 is moved to a construction position by the moving assembly 8 (the working principle of the moving assembly 8 is described above), the bottom of the carriage I-steel foundation 2 is positioned by the moving assembly 8, then the telescopic inner pipe 703 in the supporting assembly 7 is manually pulled out and fixed (the working principle of the supporting assembly 7 is described above), the telescopic inner pipe 703 is propped against arc surfaces at two sides of the tunnel, so that the stability at two sides of the carriage I-steel foundation 2 is ensured, and then the folding platform 503 in the folding mechanism 5 is overturned and pressed onto the telescopic inner pipe 703 (the working principle of the folding mechanism 5 is described above), so that the extension and expansion of the whole auxiliary carriage platform are completed; when the device needs to be moved, the folding platform 503 in the folding mechanism 5 is reversely overturned and pressed onto the working platform 4, the telescopic inner tube 703 is retracted into the telescopic groove 702 in the supporting component 7, and finally the device is driven to move by the moving component 8.

In summary, by means of the technical scheme, the structure of the utility model is scientific and novel, and the expansion of the space of the tunnel operation platform and the adjustment of the position are realized by the cooperation of the folding mechanism 5, the supporting component 7 and the moving component 8, so that the working efficiency and the adaptability of tunnel construction are greatly improved; in the tunneling process, the space of the fixed platform is smaller and smaller along with the deep development of construction, the folding and telescopic design of the mechanism can expand the platform at any time according to actual needs to provide enough working space for workers, meanwhile, the platform has the moving capability, the position can be changed at any time through moving the assembly, the rapid adjustment can be realized without erection and dismantling, and the requirement of multipoint operation in the tunnel is greatly facilitated; by arranging the folding mechanism 5 and the supporting component 7, the extending and expanding functions of the platform are realized, and when the platform is required to be reduced or transported, the platform can be turned over and reset, so that the occupied area is reduced, and the adaptability of the platform is greatly enhanced; meanwhile, the supporting component 7 provides an important supporting function for the folding mechanism 5, and the supporting component is matched with the folding mechanism, so that the expansibility of a working space is ensured, the convenience of transportation and installation is realized, and the platform keeps enough stability in an extending state; through setting up moving assembly 8 to realized the removal and the locate function of whole platform, moving assembly 8 installs in rack I-steel basis 2 bottom, can the fast movement position, improved work efficiency greatly, and can fix a position rack I-steel basis 2, thereby satisfied auxiliary rack platform and removed and the user demand of location.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. The utility model provides an auxiliary rack platform extends extension mechanism, includes installation roof (1), its characterized in that, the both sides of installation roof (1) bottom all are provided with rack I-steel basis (2), the one end of rack I-steel basis (2) be provided with a plurality of with installation roof (1) matched with bracing (3), the other end top and the bottom of rack I-steel basis (2) all are provided with work platform (4), the one end of work platform (4) is provided with folding mechanism (5), the both sides of work platform (4) all be provided with rack I-steel basis (2) matched with platform reinforcement I-steel (6), the bottom of work platform (4) be provided with a plurality of with rack I-steel basis (2) matched with supporting component (7), the bottom of rack I-steel basis (2) is provided with movable component (8).

2. An auxiliary bench platform extension and expansion mechanism according to claim 1, characterized in that the folding mechanism (5) comprises a supporting base (501) arranged at one end of the working platform (4), a connecting component (502) is arranged inside the supporting base (501) in a penetrating manner, and a folding platform (503) is arranged at one end of the connecting component (502).

3. The auxiliary bench platform extension and expansion mechanism according to claim 2, wherein the connection assembly (502) comprises a support shaft (5021) penetrating through one end of the support base (501), one side of the support shaft (5021) is provided with a rectangular plane (5022), and a plurality of mounting holes (5023) matched with the folding platform (503) are formed in the surface of the rectangular plane (5022).

4. An auxiliary bench platform extension and expansion mechanism according to claim 3, characterized in that two ends of the supporting shaft (5021) are respectively provided with an outer ring fixing ring (5024) matched with the supporting base (501), an inner ring fixing ring (5025) matched with the supporting shaft (5021) is arranged in the outer ring fixing ring (5024), and a plurality of spherical rollers (5026) are arranged between the outer ring fixing ring (5024) and the inner ring fixing ring (5025).

5. An auxiliary bench platform extension and expansion mechanism according to claim 1, characterized in that the support assembly (7) comprises a fixed sleeve (701) arranged at the bottom end of the working platform (4), a telescopic groove (702) is formed at one end of the fixed sleeve (701), and a telescopic inner tube (703) matched with the folding mechanism (5) is arranged in the telescopic groove (702).

6. The auxiliary bench platform extension and expansion mechanism according to claim 1, wherein the moving assembly (8) comprises a mounting shell (801) arranged at the bottom end of the bench I-steel foundation (2), mounting plates (802) are arranged on two sides of the top end of the inner side of the mounting shell (801), and fixing pieces (803) are arranged at the bottom end of the mounting plates (802).

7. The auxiliary bench platform extension and expansion mechanism according to claim 6, wherein a hub (804) is arranged at the bottom end of the fixing member (803), a tire (805) is sleeved on the outer side of the hub (804), and an annular brake caliper (806) matched with the fixing member (803) is arranged on the outer side of the tire (805).