Portal system and lining trolley suitable for varying cross-sections

Abstract

The utility model discloses a door frame system and lining trolley suitable for section variation, and the door frame system comprises upper longitudinal beams and lower longitudinal beams, and a stand is connected between the upper longitudinal beams and the lower longitudinal beams, characterized in that the side part of the stand is provided with an outwardly extending connecting part, a jacking mechanism is detachably arranged on the connecting part, one of the upper longitudinal beams and the lower longitudinal beams is connected with the first end of the stand, and the other of the upper longitudinal beams and the lower longitudinal beams is detachably connected with the second end of the stand directly or through a supporting mechanism. The utility model is applied to the field of tunnel construction, can not only meet the requirement of lining profile change when the section changes, but also can solve the problem that the high-section trolley can pass through the low section without disassembly when the section changes, reduce manual disassembly and assembly operation and labor intensity, save expenses and improve overall construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically a gantry system and lining trolley applicable to changes in cross-section. Background Technology

[0002] In the construction of underground caverns such as tunnels, water conservancy projects, and civil defense projects, due to factors such as route design and variations in tunnel depth, alternating gate-shaped lining profiles with height variations exceeding 1 meter often occur within the same tunnel. To address this issue, traditional lining trolleys typically employ a solution of customizing multiple trolley frames of different sizes (focusing on height) to accommodate the lining construction requirements with significant height variations. However, this solution has significant drawbacks: firstly, the customization cost is high; secondly, passage is restricted when switching between large and small cross-sections; and thirdly, the entire trolley needs to be disassembled and reassembled, which is not only time-consuming and labor-intensive but also severely impacts construction progress. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a gantry system and lining trolley suitable for cross-sectional changes. The height of the gantry system can be adjusted, which not only meets the requirements of lining contour changes when the cross-section changes, but also solves the problem that high-section trolleys can pass through without disassembly when the cross-section changes because the cross-section is too short. This not only reduces manual disassembly and assembly work, lowers labor intensity, but also saves expenses and improves overall construction efficiency.

[0004] To achieve the above objectives, this utility model provides a gantry system suitable for cross-sectional changes, including an upper longitudinal beam and a lower longitudinal beam, and a column connecting the upper longitudinal beam and the lower longitudinal beam; The side of the column is provided with an outwardly extending connecting part, and the bottom of the connecting part is detachably provided with a lifting mechanism. One of the upper longitudinal beam and the lower longitudinal beam is connected to the first end of the column. The upper longitudinal beam and the other of the lower longitudinal beams are detachably connected directly to the second end of the column, or the upper longitudinal beam and the other of the lower longitudinal beams are detachably connected to the second end of the column through a support mechanism.

[0005] In one embodiment, the upper longitudinal beam is connected to the first end of the column, and the lower longitudinal beam is detachably connected directly to the second end of the column, or the lower longitudinal beam is detachably connected to the second end of the column through a support mechanism.

[0006] In one embodiment, the column is a hollow structure and has a telescopic guide inside. One end of the telescopic guide is connected to the upper longitudinal beam and the other end is connected to the lower longitudinal beam.

[0007] In one embodiment, when the lower longitudinal beam is connected to the second end of the column via a support mechanism, the support mechanism includes two half-sided box-type columns; The two half-shaped box columns are detachably connected and form a hollow support column. One end of the hollow support column is detachably connected to the column, and the other end is detachably connected to the lower longitudinal beam. The hollow support column is sleeved outside the telescopic guide member.

[0008] In one embodiment, the number of support mechanisms in the height direction of the gantry system is at least one.

[0009] In one embodiment, a transverse truss is detachably connected between two adjacent columns along the transverse direction of the gantry system.

[0010] In one embodiment, a longitudinal truss is detachably connected between two adjacent columns along the longitudinal direction of the gantry system.

[0011] In one embodiment, the lower longitudinal beam is provided with lifting mechanisms at both ends, and the bottom of the lifting mechanisms is provided with traveling mechanisms.

[0012] To achieve the above objectives, this utility model also provides a lining trolley suitable for cross-sectional changes, including a template assembly and the aforementioned gantry system. The template assembly covers the gantry system, and extension molds are detachably connected to both ends of the template assembly.

[0013] In one embodiment, the gantry system is provided with a bracket beam at the top, and a longitudinal truss plate and a vertical support are provided above the bracket beam. The template assembly is connected to the bracket beam, the longitudinal truss plate and the vertical support.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: 1. This utility model has a connecting part on the side of the column. During the application process, a lifting mechanism can be installed at the bottom of the connecting part. The lifting mechanism can then be used to change the overall height of the lining trolley, thereby meeting the lining requirements and the passage requirements of high and low cross sections. 2. By setting up a support mechanism, this utility model can play a connecting and supporting role after the gantry system is lifted to a specified height, thereby enabling the lifting mechanism to be removed so that the lifting mechanism does not need to be kept under load. 3. In the preferred embodiment of this utility model, a telescopic guide is provided in the column and connected to the upper and lower longitudinal beams. This allows the telescopic guide to move along with the gantry system when it is lifted or lowered. This not only guides the column during movement but also prevents the column from becoming completely detached from the upper or lower longitudinal beams during movement, thus affecting the alignment and connection and increasing the risk of tilting. 4. In a preferred embodiment of this invention, transverse trusses and longitudinal trusses can be connected between the columns, thereby making the structure of the gantry system more stable after the height changes; 5. In the preferred embodiment of this utility model, detachable extension molds are provided at both ends of the template assembly, thereby enabling the template system to change while the height of the gantry system changes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a front view of the gantry system and the lining trolley before it is lifted in the embodiment of this utility model; Figure 2 This is a side view of the gantry system and the lining trolley before it is lifted in the embodiment of this utility model; Figure 3 This is a front view of the gantry system and the lining trolley after being lifted in an embodiment of this utility model; Figure 4 This is a side view of the gantry system and the lining trolley after being lifted in an embodiment of this utility model; Figure 5 This is a schematic diagram of the support mechanism in an embodiment of the present utility model; Figure 6 This is a front view of the gantry system and the lining trolley before they are lifted again in this embodiment of the present invention; Figure 7 This is a front view of the gantry system and the lining trolley after being lifted again in an embodiment of this utility model.

[0017] Reference numerals: 1. Upper longitudinal beam; 2. Lower longitudinal beam; 3. Column; 4. Horizontal beam; 5. Connecting part; 6. Lifting mechanism; 7. Telescopic guide; 8. Half-sided box-type column; 801. Flange plate; 9. Horizontal truss; 10. Longitudinal truss; 11. Lifting mechanism; 11. Guide column; 1101. Guide sleeve; 1102. Lifting cylinder; 1103. Traveling mechanism; 12. Template assembly; 13. Bracket beam; 14. Longitudinal truss piece; 15. Vertical support; 16. Extended formwork; 17.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Example 1 like Figures 1 to 4 The diagram shows a gantry system (hereinafter referred to as "gantry system") applicable to cross-sectional changes disclosed in this embodiment. It mainly includes an upper longitudinal beam 1 and a lower longitudinal beam 2. There are two upper longitudinal beams 1 and two lower longitudinal beams 2, and they correspond one-to-one. The upper longitudinal beam 1 is located directly above the corresponding lower longitudinal beam 2, and the upper longitudinal beam 1 and the lower longitudinal beam 2 are connected by at least two columns 3. At the same time, a crossbeam 4 is connected between the corresponding ends of the two upper longitudinal beams 1.

[0025] In this embodiment, the side of the column 3 is provided with an outwardly extending connecting part 5, and the connecting part 5 is detachably provided with a lifting mechanism 6. The upper longitudinal beam 1 is fixedly connected to the first end (i.e., the top end) of the column 3 or detachably connected by bolts. The lower longitudinal beam 2 and the second end of the column 3 have two connection states: In the first connection state, that is, when the gantry system is not heightened, the lower longitudinal beam 2 is directly and detachably connected to the second end of the column 3. In the second connection state, that is, when the gantry system is in the heightened state, the lower longitudinal beam 2 is detachably connected to the second end of the column 3 through the support mechanism.

[0026] In practical implementation, the number of connecting parts 5 is preferably set to two and symmetrically connected on both sides of the column 3. Specifically, a bracket structure welded to both sides of the column 3 can be used, and the lifting mechanism 6 can be directly a hydraulic cylinder. When the gantry system needs to be heightened, first remove the connection between the column 3 and the lower longitudinal beam 2, then install the lifting mechanism 6 between the bottom of the connecting part 5 and the ground. After operating the lifting mechanism 6 to move the part of the gantry system other than the lower longitudinal beam 2 upward to the specified height, install a support mechanism between the column 3 and the lower longitudinal beam 2, and then remove the lifting mechanism 6.

[0027] In a preferred embodiment, the column 3 is a hollow structure, and a telescopic guide 7 is provided inside the column 3. One end of the telescopic guide 7 is connected to the upper longitudinal beam 1, and the other end is connected to the lower longitudinal beam 2. Specifically, the telescopic guide 7 can be a multi-rod telescopic rod structure. By setting the telescopic guide 7 in the column 3 and connecting the telescopic guide 7 to the upper longitudinal beam 1 and the lower longitudinal beam 2, the telescopic guide 7 can move telescopically when the gantry system is raised or lowered. This not only guides the movement of the column 3 but also prevents the column 3 from becoming completely detached from the upper longitudinal beam 1 or the lower longitudinal beam 2 during movement, thus affecting the alignment and connection and preventing the risk of tilting.

[0028] refer to Figure 5 In this embodiment, the support mechanism includes two half-shaped box columns 8. Flange plates 801 are provided around the half-shaped box columns 8, so that the two half-shaped box columns 8 can be detachably connected and form a hollow support column. One end of the hollow support column is detachably connected to the column 3, and the other end is detachably connected to the lower longitudinal beam 2. At the same time, the hollow support column is sleeved on the telescopic guide member 7.

[0029] In the specific implementation process, the number of support mechanisms in the height direction of the gantry system is at least one, that is, the height of the gantry system can be changed in multiple levels by adjusting the number of support mechanisms.

[0030] refer to Figure 3 , Figure 4Along the transverse direction of the gantry system, a transverse truss 9 is detachably connected between two adjacent columns 3; along the longitudinal direction of the gantry system, a longitudinal truss 10 is detachably connected between two adjacent columns 3, thereby making the structure of the gantry system more stable after the height changes.

[0031] refer to Figure 2 , Figure 4 The lower longitudinal beam 2 has lifting mechanisms 11 at both ends, and a traveling mechanism 12 at the bottom of the lifting mechanism 11 to enable the gantry system and the entire trolley to travel and demold during normal use. Specifically, the lifting mechanism 11 includes a guide column 1101, a guide sleeve 1102, and a lifting cylinder 1103. The guide sleeve 1102 is a hollow cylindrical structure with an open bottom end, and is fixedly connected to the end of the lower longitudinal beam 2. The guide column 1101 is a hollow cylindrical structure with an open top end, and is fixedly connected to the top of the traveling mechanism 12 and embedded in the guide sleeve 1102. One end of the lifting cylinder 1103 is connected to the inner wall of the bottom end of the guide column 1101, and the other end is connected to the inner wall of the top end of the guide sleeve 1102.

[0032] Example 2 like Figures 1 to 4 The illustration shows a lining trolley (hereinafter referred to as "lining trolley") suitable for cross-sectional changes, disclosed in this embodiment. It mainly includes a template assembly 13 and the gantry system from Embodiment 1, with the template assembly 13 covering the gantry system. Specifically, a bracket beam 14 is provided at the top of the gantry system, and longitudinal truss plates 15 and vertical supports 16 are arranged above the bracket beam 14. The template assembly 13 is connected to the bracket beam 14, and the longitudinal truss plates 15 and vertical supports 16 are connected. The template assembly 13 is detachably connected to extension molds 17 at both ends, thereby enabling the template system to change while the height of the gantry system changes.

[0033] The specific working process of the lining trolley in this embodiment is as follows: When the height of the straight edge of the cross section changes, for example, the straight edge of the entire cross section is increased by 1.5 meters, the lifting mechanism 6 is first placed below the connecting part 5, and then the connection between the column 3 and the lower longitudinal beam 2 is removed. At the same time, the lifting mechanism 6 is operated. At this time, the part above the column 3 of the trolley begins to move upward, and the telescopic guide 7 inside the column 3 follows the telescopic movement. Subsequently, two half-sided box-type columns 8 are placed between the column 3 and the lower longitudinal beam 2, that is, around the part of the telescopic guide 7 exposed outside the column 3. The half-sided box-type columns 8 are locked to the column 3 and the lower longitudinal beam 2 at each connection point through the flange plates 801 around them. After the two half-sided box-type columns 8 are locked, the two half-sided box-type columns 8 are connected to the column 3 and the lower longitudinal beam 2 as one unit. (During this process, the telescopic guide 7 does not bear the weight of the trolley, but only plays the role of telescopic guidance to prevent the column 3 and the lower longitudinal beam 2 from becoming completely separated. The telescopic guide 7 does not need to be powered.) After completing the connection of the half-shaped box-type columns 8, the lifting mechanism 6 can be retracted, and at the same time, the transverse truss 9 and the longitudinal truss 10 can be connected between each column 3, that is... Figure 3 , Figure 4 As shown, it is used to reinforce the entire gantry structure; Finally, by connecting the corresponding length of the extension mold 17 to both ends of the template component 13, the height variation requirements of the trolley can be met.

[0034] Similarly, if further heightening is required, simply detach the connecting parts 5 on both sides of the column 3 and connect them to the semi-box-type column 8 structure, i.e. Figure 6 As shown, the jacking action is then repeated, and the half-shaped box-type columns 8 are added, the transverse trusses 9 and longitudinal trusses 10 between the columns 3 are added, and the extension molds 17 at the ends of the template assembly 13 are added, so that the cross-section can continue to be heightened as required, i.e. Figure 7 As shown.

[0035] Conversely, if a reduction in cross-section is required, simply reverse the above steps once, removing the corresponding extended formwork 17, the transverse and longitudinal trusses 10 between the half-shaped box column 8 and the column 3, without dismantling the overall template and frame of the trolley, thus achieving an overall reduction in the trolley to meet the lining and passage requirements of cross-section changes.

[0036] Example 3 This embodiment discloses a gantry system applicable to cross-sectional changes, the implementation of which is basically the same as that of Embodiment 1, the only difference being: In this embodiment, the lower longitudinal beam 2 is fixedly connected to the first end (i.e., the bottom end) of the column 3 or detachably connected by bolts. The upper longitudinal beam 1 and the second end (i.e., the top end) of the column 3 have two connection states: In the first connection state, that is, when the gantry system is not heightened, the upper longitudinal beam 1 is directly and detachably connected to the second end of the column 3. In the second connection state, that is, when the gantry system is in the heightened state, the upper longitudinal beam 1 is detachably connected to the second end of the column 3 through the support mechanism.

[0037] The lifting mechanism 6 can be installed between the connecting part 5 and the crossbeam 4 or the upper longitudinal beam 1 when the height adjustment is required. During the lifting, the part above the upper longitudinal beam 1 moves upward. After the lifting, the half-shaped box column 8 is connected between the column 3 and the upper longitudinal beam 1, which can also achieve the same effect.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A gantry system suitable for varying cross-sections, comprising an upper longitudinal beam and a lower longitudinal beam, wherein a column connects the upper longitudinal beam and the lower longitudinal beam; Its features are, The side of the column is provided with an outwardly extending connecting part, and the connecting part is detachably provided with a lifting mechanism. One of the upper longitudinal beam and the lower longitudinal beam is connected to the first end of the column. The upper longitudinal beam and the other of the lower longitudinal beams are detachably connected directly to the second end of the column, or the upper longitudinal beam and the other of the lower longitudinal beams are detachably connected to the second end of the column through a support mechanism.

2. The gantry system according to claim 1, characterized in that, The upper longitudinal beam is connected to the first end of the column, and the lower longitudinal beam is detachably connected directly to the second end of the column, or the lower longitudinal beam is detachably connected to the second end of the column through a support mechanism.

3. The gantry system according to claim 2, characterized in that, The column is a hollow structure and has a telescopic guide inside. One end of the telescopic guide is connected to the upper longitudinal beam and the other end is connected to the lower longitudinal beam.

4. The gantry system according to claim 3, characterized in that, When the lower longitudinal beam is connected to the second end of the column through a support mechanism, the support mechanism includes two half-sided box-type columns; The two half-shaped box columns are detachably connected and form a hollow support column. One end of the hollow support column is detachably connected to the column, and the other end is detachably connected to the lower longitudinal beam. The hollow support column is sleeved outside the telescopic guide member.

5. The gantry system according to any one of claims 1 to 4, characterized in that, In the height direction of the gantry system, the number of support mechanisms is at least one.

6. The gantry system according to any one of claims 1 to 4, characterized in that, Along the transverse direction of the gantry system, a transverse truss is detachably connected between two adjacent columns.

7. The gantry system according to any one of claims 1 to 4, characterized in that, Along the longitudinal direction of the gantry system, a longitudinal truss is detachably connected between two adjacent columns.

8. The gantry system according to any one of claims 1 to 4, characterized in that, The lower longitudinal beam is equipped with lifting mechanisms at both ends, and the bottom of the lifting mechanism is equipped with a traveling mechanism.

9. A lining trolley suitable for varying cross-sections, characterized in that, The system includes a template assembly and a gantry system as described in any one of claims 1 to 8, wherein the template assembly covers the gantry system and both ends of the template assembly are detachably connected to an extension mold.

10. The lining trolley according to claim 9, characterized in that, The gantry system is provided with a bracket beam at the top, and a longitudinal truss plate and a vertical support are provided above the bracket beam. The template assembly is connected to the bracket beam, the longitudinal truss plate and the vertical support.

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