CN211975020U - Naked hole supports safety protection platform truck and supports lift limit structure - Google Patents
Naked hole supports safety protection platform truck and supports lift limit structure Download PDFInfo
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- CN211975020U CN211975020U CN202020544035.2U CN202020544035U CN211975020U CN 211975020 U CN211975020 U CN 211975020U CN 202020544035 U CN202020544035 U CN 202020544035U CN 211975020 U CN211975020 U CN 211975020U
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Abstract
The utility model discloses a naked hole supports safety protection platform truck and supports lift limit structure, including lifter plate and carrier plate car, the equal vertical fixed mounting in bottom surface both sides of lifter plate has the lift cylinder, and the vertical trough frame that is fixed with in bottom surface middle part of lifter plate, the equal swivelling joint in both sides of lifter plate has arched roof, and fix on the carrier plate car on the lift cylinder top on the lifter plate bottom surface, be provided with limit structure under the trough frame, and limit structure is by the bottom plate, spout plate and slider group become, bottom plate fixed mounting is on the carrier plate car, and equal horizontal welding has the spout plate on the terminal surface around the bottom plate, horizontal slip has the slider in the spout plate, and one side of slider top surface is rotated and is connected with the gag lever post, the vertical welding of opposite side of slider top surface has the jack ear seat. The utility model discloses can be through setting up limit structure on protection platform truck bearing structure, it is not good to lead to supporting the protection nature when preventing to support, and the security reduces, improves the security of strutting the protection.
Description
Technical Field
The utility model relates to a road construction protective equipment technical field especially relates to a naked hole supports safety protection platform truck and supports lift limit structure.
Background
Need excavate the tunnel usually in road construction, the tunnel is the engineering building of embedding in the stratum, a form that the mankind utilized underground space, the tunnel can be divided into traffic tunnel, the hydraulic tunnel, municipal tunnel, the mine tunnel, the tunnel need support and protect through the protection frame when excavating, avoid the tunnel top to collapse, when using the support steel bow member to support the protection to the tunnel top surface during the tunnel excavation, if meet that the bad district takes place to collapse easily or have sporadic block stone to drop and take place the incident easily, the naked hole of current use supports that safety protection platform truck lacks limit structure when strutting the tunnel top surface, do not have safeties during the support protection, the security of protection is not good.
Consequently need a naked hole support safety protection platform truck and support lift limit structure, can lead to when preventing to support that the protection nature is not good through setting up limit structure on protection platform truck bearing structure, the security reduces, improves the security of strutting the protection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a naked hole supports safety protection platform truck and supports lift limit structure aims at improving the naked hole of current use and supports and lack limit structure when safety protection platform truck struts the tunnel top surface, does not have safeties when supporting the protection, the not good problem of security of protection.
The utility model discloses a realize like this:
a supporting, lifting and limiting structure of a naked hole supporting safety protection trolley comprises a lifting plate and a bearing plate trolley, wherein lifting cylinders are vertically and fixedly arranged on two sides of the bottom surface of the lifting plate, a groove frame is vertically and fixedly arranged in the middle of the bottom surface of the lifting plate, arched top plates are rotatably connected to two sides of the lifting plate, the top end of each lifting cylinder on the bottom surface of the lifting plate is fixedly arranged on the bearing plate trolley, a limiting structure is arranged right below the groove frame and consists of a bottom plate, a sliding groove plate and a sliding block, the bottom plate is fixedly arranged on the bearing plate trolley, the sliding groove plate is horizontally welded on the front end surface and the rear end surface of the bottom plate, the sliding block horizontally slides in the sliding groove plate, a limiting rod is rotatably connected to one side of the top surface of the sliding block, a jack lug seat is vertically welded to the other side of the top surface of the sliding block, the other end of the limiting rod arranged on the sliding block is, and a screw rod is connected with the horizontal thread in the screw hole lug seat, and one end of the screw rod is inserted in the jack lug seat.
Furthermore, the front end face and the rear end face of the lifting plate are both fixed with rotating shaft sleeves.
And then the rotating shaft sleeves are fixed on the front end face and the rear end face of the lifting plate and used for rotatably mounting the top plate.
Furthermore, a rotating shaft is fixed on the front end face of the top plate, and the rotating shaft is in rotating fit with a rotating shaft sleeve on the lifting plate.
And then through normal running fit between pivot and the pivot cover on the roof, be convenient for rotate the roof on the lifter plate, be suitable for the tunnel top of different radians.
Furthermore, an extension cylinder is vertically fixed in the groove frame, extension arms are rotatably connected to two sides of the top surface of the extension cylinder, and the other ends of the extension arms are rotatably connected to the end faces of the inner sides of the top plates.
And then through the extension cylinder that sets up on the truss, through extending cylinder oscilaltion drive extension arm rebound, make the roof rotate the expansion on the lifter plate in the certain lift of length of extension arm to expand jack-up tunnel top.
Furthermore, rotating shaft seats are fixed at two ends of the limiting rod, and the rotating shaft seats at two ends of the limiting rod are respectively fixed on the top surface of the sliding block and the groove frame.
And then both ends through the gag lever post all are fixed with the pivot seat, are convenient for swivelling joint slider and cell rack, through being convenient for follow lifter plate swivelling joint change gag lever post's angle when the lifter plate rises.
Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used for protecting the top of the tunnel by removing the slag from the tunnel, the safety protection structure is supported by the bearing plate trolley and reaches the tunnel, the lifting cylinder is controlled by the hydraulic control system to lift upwards, so that the lifting plate is lifted upwards, when the lifting plate is lifted, the slide block in the limit structure rotatably arranged on the bearing plate trolley is driven to slide in the chute plate when the chute frame and the top plate are driven to lift, when the lifting plate is lifted to a proper height, the screw rod is arranged by the screw thread in the screw hole lug seat on the chute plate, the end part of the screw rod is inserted in the jack lug seat, so as to fix the position of the slide block in the chute plate, and simultaneously, the hydraulic control system is used for controlling the extending cylinder to extend upwards, so that the lifting arm extends towards two sides, thereby the top plate extends towards two sides to support the top surface of the tunnel to prevent falling rocks from sliding off, through set up limit structure on protection platform truck bearing structure, it is not good to lead to supporting the protectiveness when preventing to support, and the security reduces, improves the security of strutting the protection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the whole body of the utility model at another angle;
fig. 3 is a schematic structural diagram of a limiting structure in an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of the lifting plate 1 and the top plate in the embodiment of the present invention;
fig. 5 is a schematic structural view of a slot frame in an embodiment of the present invention.
In the figure: 1. a lifting plate; 11. a slot frame; 12. a rotating shaft sleeve; 111. an extension cylinder; 112. a rotating shaft seat; 113. an extension arm; 2. a lifting cylinder; 3. a top plate; 31. a rotating shaft; 4. a limiting structure; 41. a base plate; 42. a chute plate; 421. a screw hole ear seat; 43. a slider; 431. a jack ear seat; 44. a limiting rod; 45. a screw.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
Referring to fig. 1, 2, 3, 4 and 5, a supporting and lifting limit structure for a bare hole supporting safety protection trolley comprises a lifting plate 1 and a bearing plate trolley, wherein lifting cylinders 2 are vertically and fixedly installed on two sides of the bottom surface of the lifting plate 1, a groove frame 11 is vertically and fixedly installed in the middle of the bottom surface of the lifting plate 1, two sides of the lifting plate 1 are rotatably connected with arched top plates 3, the top ends of the lifting cylinders 2 on the bottom surface of the lifting plate 1 are fixed on the bearing plate trolley, a limit structure 4 is arranged right below the groove frame 11, the limit structure 4 is composed of a bottom plate 41, a sliding groove plate 42 and a sliding block 43, the bottom plate 41 is fixedly installed on the bearing plate trolley, the sliding groove plate 42 is horizontally welded on the front end surface and the rear end surface of the bottom plate 41, the sliding block 43 horizontally moves in the sliding groove plate 42, a limit rod 44 is rotatably connected to one side of the top surface of the sliding block 43, a jack lug 431 is vertically welded, and the other end of the limiting rod 44 arranged on the sliding block 43 is rotationally fixed on the slot frame 11, a screw hole lug seat 421 is vertically welded at one end of the top surface of the sliding slot plate 42, a screw rod 45 is connected with the screw hole lug seat 421 through a horizontal thread, and one end of the screw rod 45 is inserted into the jack lug seat 431.
Furthermore, when the exposed hole supporting safety protection trolley is used for supporting a lifting limiting structure, when the tunnel top is protected by clearing slag in the tunnel, the bearing supporting safety protection structure reaches the tunnel through a bearing plate trolley, the lifting cylinder 2 is controlled to lift upwards through a hydraulic control system, so that the lifting plate 1 is lifted upwards, when the lifting plate 1 is lifted, the slot frame 11 and the top plate 3 are driven to lift, the sliding block 43 rotatably installed in the limiting structure 4 on the bearing plate trolley is driven to slide in the sliding slot plate 42, when the lifting plate 1 is lifted to a proper height, the screw rod 45 is installed in the screw hole lug seat 421 on the sliding slot plate 42 in a threaded manner, the end part of the screw rod 45 is inserted in the jack lug seat 431, so that the position of the sliding block 43 in the sliding slot plate 42 is fixed, and meanwhile, the hydraulic control system is used for controlling the extension cylinder 111 to extend upwards, so that the lifting extension arm 113 is extended towards two sides, thereby make roof 3 extend towards both sides and support the tunnel top surface and prevent the landing of falling rocks, through set up limit structure on protection platform truck bearing structure, lead to when preventing to support that the protectiveness is not good, the security reduces, improves the security of strutting the protection.
Referring to fig. 4, the front and rear end faces of the lifting plate 1 are fixed with the rotating shaft sleeves 12.
And a rotating shaft sleeve 12 is fixed on the front end face and the rear end face of the lifting plate 1 for rotatably mounting the top plate 3.
Referring to fig. 4, a rotating shaft 31 is fixed on the front end surface of the top plate 3, and the rotating shaft 31 is rotatably engaged with the rotating shaft sleeve 12 on the lifting plate 1.
And then through the normal running fit between pivot 31 and the pivot cover 12 on the roof 3, be convenient for rotate roof 3 on lifter plate 1, be suitable for the tunnel top of different radians.
Referring to fig. 5, an extending cylinder 111 is vertically fixed inside the slot frame 11, and both sides of the top surface of the extending cylinder 111 are rotatably connected with extending arms 113, and the other ends of the extending arms 113 are rotatably connected to the inner side end surface of the top plate 3.
And then through the extension cylinder 111 that sets up on the cell-tower 11, through extending cylinder 111 and go up and down to drive extension arm 113 and upwards move, the length of extension arm 113 makes roof 3 rotate the expansion on lifter plate 1 in certain lift to expand jack-up tunnel top.
Referring to fig. 3, the two ends of the limiting rod 44 are fixed with the rotating shaft seats 112, and the rotating shaft seats 112 at the two ends of the limiting rod 44 are fixed on the top surface of the sliding block 43 and the slot frame 11, respectively.
And then through the both ends of gag lever post 44 all be fixed with pivot seat 112, be convenient for swivelling joint slider 43 and cell-rack 11, through being convenient for follow lifter plate 1 swivelling joint change gag lever post 44's angle when the lifter plate 1 rises.
The working principle is as follows: when the supporting lifting limit structure of the naked hole supporting safety protection trolley is used, and the top of the tunnel is protected by clearing slag from the tunnel, the safety protection structure is supported by the bearing plate car and reaches the tunnel, the lifting cylinder 2 is controlled by the hydraulic control system to lift upwards, so that when the lifting plate 1 is lifted upwards and the lifting plate 1 is lifted, the slot frame 11 and the top plate 3 are driven to be lifted, the sliding block 43 in the limiting structure 4 rotatably arranged on the bearing plate trolley is driven to slide in the sliding slot plate 42, after the lifting plate 1 is lifted to a proper height, the screw rod 45 is installed in the screw hole lug 421 on the sliding groove plate 42 in a threaded manner, the end part of the screw rod 45 is inserted into the insertion hole lug 431, thereby fixing the position of the slide block 43 in the chute plate 42, and simultaneously controlling the extension cylinder 111 to extend upwards by using a hydraulic control system, so that the jacking extension arms 113 are expanded to both sides, thereby extending the roof panel 3 toward both sides to support the top surface of the tunnel to prevent falling rocks from sliding off.
The device that obtains through above-mentioned design has basically satisfied one kind and can lead to when preventing to support that the protection nature is not good through set up limit structure on protection platform truck bearing structure, and the security reduces, and the naked hole that improves the security of strutting the protection supports safety protection platform truck and supports lift limit structure's use, but at the purpose of further perfecting its function, the designer has carried out further improvement to the device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a naked hole supports safety protection platform truck and supports lift limit structure, includes lifter plate (1) and bears the weight of the wooden handcart, its characterized in that: the lifting mechanism is characterized in that lifting cylinders (2) are vertically and fixedly mounted on two sides of the bottom surface of the lifting plate (1), a groove frame (11) is vertically fixed in the middle of the bottom surface of the lifting plate (1), arched top plates (3) are rotatably connected on two sides of the lifting plate (1), the top ends of the lifting cylinders (2) on the bottom surface of the lifting plate (1) are fixed on a bearing plate trolley, a limiting structure (4) is arranged under the groove frame (11), the limiting structure (4) is composed of a bottom plate (41), a sliding groove plate (42) and a sliding block (43), the bottom plate (41) is fixedly mounted on the bearing plate trolley, the sliding groove plate (42) is horizontally welded on the front end surface and the rear end surface of the bottom plate (41), a sliding block (43) horizontally slides in the sliding groove plate (42), a limiting rod (44) is rotatably connected on one side of the top surface of the sliding block (43), and a jack lug (431) is vertically welded on the, and the other end of the limiting rod (44) arranged on the sliding block (43) is rotationally fixed on the groove frame (11), a screw hole lug seat (421) is vertically welded at one end of the top surface of the sliding groove plate (42), a screw rod (45) is connected with the screw hole lug seat (421) in a horizontal threaded manner, and one end of the screw rod (45) is inserted into the jack lug seat (431).
2. A supporting, lifting and limiting structure of a bare hole supporting safety protection trolley according to claim 1, characterized in that the front and rear end surfaces of the lifting plate (1) are fixed with rotating shaft sleeves (12).
3. The supporting, lifting and limiting structure for the bare hole supporting safety protection trolley according to claim 2, wherein a rotating shaft (31) is fixed on the front end face of the top plate (3), and the rotating shaft (31) is in running fit with a rotating shaft sleeve (12) on the lifting plate (1).
4. A supporting, lifting and limiting structure for a bare hole supporting safety protection trolley according to claim 3, wherein an extending cylinder (111) is vertically fixed inside the slot frame (11), extending arms (113) are rotatably connected to two sides of the top surface of the extending cylinder (111), and the other ends of the extending arms (113) are rotatably connected to the end surface of the inner side of the top plate (3).
5. The supporting, lifting and limiting structure for the bare hole supporting safety protection trolley according to claim 4, wherein the two ends of the limiting rod (44) are fixed with rotating shaft seats (112), and the rotating shaft seats (112) at the two ends of the limiting rod (44) are respectively fixed on the top surface of the sliding block (43) and the groove frame (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020544035.2U CN211975020U (en) | 2020-04-14 | 2020-04-14 | Naked hole supports safety protection platform truck and supports lift limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020544035.2U CN211975020U (en) | 2020-04-14 | 2020-04-14 | Naked hole supports safety protection platform truck and supports lift limit structure |
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| Publication Number | Publication Date |
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| CN211975020U true CN211975020U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020544035.2U Active CN211975020U (en) | 2020-04-14 | 2020-04-14 | Naked hole supports safety protection platform truck and supports lift limit structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060076A (en) * | 2021-10-13 | 2022-02-18 | 湖南科技学院 | Tunnel engineering is with fender bracket that takes precautions against earthquakes |
| CN115507270A (en) * | 2022-11-20 | 2022-12-23 | 成都大学 | Monitoring equipment for tunnel deformation |
-
2020
- 2020-04-14 CN CN202020544035.2U patent/CN211975020U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060076A (en) * | 2021-10-13 | 2022-02-18 | 湖南科技学院 | Tunnel engineering is with fender bracket that takes precautions against earthquakes |
| CN114060076B (en) * | 2021-10-13 | 2023-10-27 | 湖南科技学院 | Shock-proof protection frame for tunnel engineering |
| CN115507270A (en) * | 2022-11-20 | 2022-12-23 | 成都大学 | Monitoring equipment for tunnel deformation |
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