Hydraulic synchronous jacking connection mechanism for tunnel lining formwork

Abstract

The utility model discloses a hydraulic synchronous roof support connecting mechanism of tunnel lining form, including trolley body and two side edge form still include: base, its array distribution sets up on the crosspiece of side edge form, axle sleeve, its setting on each base, first oil cylinder, its setting on trolley body, and the output of first oil cylinder is connected with each base, first sheath, its setting on each first oil cylinder, second sheath, it is connected with each first sheath and is matched, the locking portion of each axle sleeve is set up and is connected with each first sheath and second sheath and is matched. The utility model provides a hydraulic synchronous roof support connecting mechanism of tunnel lining form, through with first sheath and second sheath and is connected with first oil cylinder on the sleeve, then slides first sheath and second sheath and the locking portion of axle sleeve and is connected with, in the process of the extension and the contraction reset of first oil cylinder, to the output of first oil cylinder plays the role of protection.

Description

Technical Field

[0001] This utility model relates to the field of tunnel lining technology, and more specifically to a hydraulic synchronous jacking connection mechanism for tunnel lining templates. Background Technology

[0002] As is well known, tunnel lining is a crucial permanent structure in tunnel construction, used for supporting the surrounding rock, forming a permanent passage, and waterproofing and seepage prevention. The core equipment in tunnel lining is the hydraulic lining trolley. The templates of the trolley are assembled according to the tunnel design. The position of the top template and the side templates are adjusted by the hydraulic cylinders on the trolley to match the tunnel surrounding rock before concrete is poured.

[0003] The specific construction steps of the hydraulic lining trolley are as follows: first, the trolley is inspected and debugged; then, the trolley is moved to the lining area; the top and side templates are adjusted by the hydraulic cylinder; and then the pouring is carried out. After the concrete solidifies, the lining structure is formed, completing the area. Then, the trolley is moved to carry out the pouring operation of the next area.

[0004] During the implementation of the hydraulic cylinder used for the side template support, the piston rod of the cylinder extends to the outside. However, the environment of the tunnel is poor, and dust from inside the tunnel may adhere to the surface of the piston rod exposed during the pouring process. This causes foreign objects to enter the fitting gap and cause wear during piston movement when the piston rod is reset and retracted into the cylinder. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, one objective of this utility model is to provide a hydraulic synchronous jacking connection mechanism for tunnel lining templates, so as to solve the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides a hydraulic synchronous jacking connection mechanism for tunnel lining templates, comprising a trolley body and two side templates, and further comprising: bases arranged in an array on the crossbeams of the side templates; bushings disposed on each of the bases; a first hydraulic cylinder disposed on the trolley body, with its output end connected to each of the bases; a first protective sleeve disposed on each of the first hydraulic cylinders; a second protective sleeve engaging with each of the first protective sleeves; and a locking portion provided on each of the bushings engaging with each of the first and second protective sleeves.

[0007] Preferably, the output end of each of the first hydraulic cylinders is a piston rod.

[0008] Preferably, each piston rod is hinged to each of the bases.

[0009] Preferably, both the first sheath and the second sheath are in a semi-cylindrical shape.

[0010] Preferably, each of the first sheaths is provided with a plurality of protrusions, and each of the protrusions is specifically a rectangular structure.

[0011] Preferably, each of the second sheaths has a slot that matches each of the protrusions.

[0012] Preferably, the first sheath and the second sheath are snapped together to form a protective space, and each of the first hydraulic cylinders is located within the protective space.

[0013] Preferably, each of the first sheath and the second sheath is provided with a first locking block and a second locking block.

[0014] Preferably, each of the first and second locking blocks is engaged with each of the locking parts after being combined.

[0015] Preferably, the trolley body is also provided with a top template, a top support and a second hydraulic cylinder connected in sequence.

[0016] In the above technical solution, the hydraulic synchronous jacking connection mechanism for tunnel lining template provided by this utility model has the following beneficial effects: This utility model, by interlocking the first sheath and the second sheath onto the first oil cylinder, as shown... Figure 4 and Figure 2 As shown in the diagram, the sliding first sleeve and the second sleeve engage with the locking part on the bushing. During the extension and retraction reset of the first oil cylinder, they protect the output end of the first oil cylinder, reducing or even preventing the presence of dust adhering to the piston rod surface exposed during the casting process. This would prevent foreign objects from entering the mating gap and causing wear during piston movement when the piston rod is reset and retracted into the cylinder. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partially enlarged structural diagram of the first and second sheaths of this utility model after implementation;

[0020] Figure 3 This is a partially enlarged structural diagram of the first sheath of this utility model;

[0021] Figure 4This is a partial enlarged structural diagram of the first and second sheaths of this utility model in the event of an explosion;

[0022] Figure 5 This is a partially enlarged exploded structural diagram of the bushing and base of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Trolley body; 2. First hydraulic cylinder; 3. First protective sleeve; 4. Second protective sleeve; 5. Bushing; 1.1. Second hydraulic cylinder; 1.2. Top bracket; 1.3. Top template; 1.4. Side template; 1.5. Base; 2.1. Piston rod; 3.1. First locking block; 3.2. Protrusion; 4.1. Second locking block; 4.2. Slot; 5.1. Locking part. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-5 A hydraulic synchronous jacking connection mechanism for tunnel lining formwork is provided to solve the problem that during the implementation of the hydraulic cylinder used for jacking the side formwork, the piston rod of the cylinder extends to the outside. The tunnel environment is poor, and during the pouring period, dust from inside the tunnel adheres to the surface of the exposed piston rod. This causes foreign objects to enter the fitting gap and cause wear during piston movement when the piston rod is reset and retracted into the cylinder.

[0027] As a further technical solution proposed in this utility model, it includes a trolley body 1 and two side templates 1.4, and further includes: bases 1.5, which are arranged in an array on the crossbeams of the side templates 1.4; bushings 5, which are disposed on each base 1.5; a first hydraulic cylinder 2, which is disposed on the trolley body 1, and the output end of the first hydraulic cylinder 2 is connected to each base 1.5; a first protective sleeve 3, which is disposed on each first hydraulic cylinder 2; a second protective sleeve 4, which is engaged with each first protective sleeve 3; each bushing 5 has a locking part 5.1 that engages with each first protective sleeve 3 and the second protective sleeve 4. Specifically, by engaging the first protective sleeve 3 and the second protective sleeve 4 onto the first hydraulic cylinder 2, as shown... Figure 4 and Figure 2 As shown in the diagram, the first sleeve 3 and the second sleeve 4 are then engaged with the locking part 5.1 on the bushing 5. During the extension and retraction reset of the first cylinder 2, the output end of the first cylinder 2 is protected. This reduces or even prevents the presence of dust adhering to the surface of the piston rod exposed during the casting process. This would prevent foreign objects from entering the fitting gap and causing wear during piston movement when the piston rod is reset and retracted into the cylinder.

[0028] In this embodiment, multiple bases 1.5 are provided along the length of the crossbeam of the side template 1.4, such as... Figure 1 As shown in the diagram, the base 1.5 is used to connect to the first hydraulic cylinder 2 on the frame of the trolley body 1. The specific number of bases 1.5 is set according to the needs of those skilled in the art. The bushing 5 is rotatably mounted on the base 1.5. Figure 1 For reference, this diagram shows the two side templates 1.4 before they were expanded by the first hydraulic cylinder 2, and were positioned as follows: Figure 2 For reference, in this diagram, the first hydraulic cylinder 2 extends its output end to support the templates on both sides, making them fit the cavity wall. During this process, two protective sleeves protect the output end of the first hydraulic cylinder 2, reducing or even preventing dust adhesion. Figure 3 As shown in the figure, the service life of the first cylinder 2 is improved. Secondly, the first sleeve 3 and the second sleeve 4 are installed on the first cylinder 2 by means of snap-fit ​​with the bushing 5, which facilitates disassembly for replacement or maintenance in the future.

[0029] In another embodiment of this utility model, the output end of each first hydraulic cylinder 2 is specifically a piston rod 2.1, such as... Figure 3 and Figure 4 As shown in the diagram, the first sheath 3 and the second sheath 4 are used to protect the piston rod 2.1, so as to weaken or even prevent it from coming into contact with dust particles in the hole and being attached. This is existing technology and will not be described in detail. Each piston rod 2.1 is hinged to each base 1.5. Multiple first oil cylinders 2 are arranged opposite to each other on the frame of the trolley body 1, and they are all connected to the base 1.5 on the crossbeam of their respective side template 1.4.

[0030] In another embodiment of this utility model, each of the first sheaths 3 and the second sheaths 4 is generally semi-cylindrical in shape. Further, as shown... Figure 4 As shown in the diagram, a cylinder is formed by the interlocking of two semi-cylindrical sleeves 3 and 4. Each sleeve consists of a semi-cylindrical sleeve and a semi-circular ring connected to it. The semi-cylindrical sleeve is used to fit the cylinder barrel outside the first cylinder 2, while the smaller semi-circular ring is used to fit the piston rod 2.1. The semi-cylindrical sleeve slides on the cylinder barrel and engages with the semi-circular ring to protect the piston rod 2.1 during extension and retraction. To prevent wear between the semi-cylindrical sleeve and the cylinder barrel, a matching rubber ring is provided on the semi-cylindrical sleeve to reduce wear.

[0031] In another embodiment of this utility model, preferably, each first sheath 3 is provided with a plurality of protrusions 3.2, each protrusion 3.2 being a rectangular structure, and each second sheath 4 is provided with a slot 4.2 adapted to each protrusion 3.2. After the first sheath 3 and the second sheath 4 are engaged, a protective space is formed, and each first hydraulic cylinder 2 is located within the protective space. Further, as... Figure 4As shown in the diagram, the first sheath 3 and the second sheath 4 are engaged with the protrusion 3.2 and the slot 4.2, so that the two together form a cylindrical shape. Figure 2 As shown in the diagram, the two protective sleeves are placed around the outside of the first hydraulic cylinder 2 to provide protection.

[0032] In another embodiment of this utility model, each first sheath 3 and second sheath 4 is respectively provided with a first locking block 3.1 and a second locking block 4.1. After the first locking block 3.1 and the second locking block 4.1 are combined, they are engaged with each locking part 5.1. Further, as shown in the figure... Figure 2 and Figure 3 As shown in the figure, after the first sheath 3 and the second sheath 4 are engaged, they slide along the cylinder of the first cylinder 2 until the first locking block 3.1 and the second locking block 4.1 of both engage with the locking part 5.1 on the bushing 5. The engagement and limiting of the locking part 5.1 with the first locking block 3.1 and the second locking block 4.1 improves the stability of the first sheath 3 and the second sheath 4 after they are combined.

[0033] In another embodiment of this utility model, the trolley body 1 is further provided with a top template 1.3, a top support 1.2, and a second hydraulic cylinder 1.1 connected in sequence, as shown below. Figure 1 As shown in the figure, the trolley body 1 is a hydraulic lining trolley, which is also equipped with a system for movement (not shown in the figure). The top template 1.3 is extended by the second hydraulic cylinder 1.1 to support the top bracket 1.2 so that it is adapted to the top hole wall. After the top template 1.3 and the side templates 1.4 are adjusted in position under the synchronous support of multiple hydraulic cylinders, the next pouring operation can be carried out. After the concrete is poured and solidified, the trolley body 1 is moved again to carry out the lining operation of the next area. This is the existing technology.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic synchronous jacking connection mechanism for tunnel lining formwork, comprising a trolley body (1) and two side formworks (1.4), characterized in that, Also includes: The base (1.5) is arranged in an array on the crossbeam of the side template (1.4); A bushing (5) is disposed on each of the bases (1.5); The first hydraulic cylinder (2) is mounted on the trolley body (1), and the output end of the first hydraulic cylinder (2) is connected to each of the bases (1.5); The first protective sleeve (3) is disposed on each of the first oil cylinders (2); The second sheath (4) engages with each of the first sheaths (3); Each bushing (5) is provided with a locking part (5.1) that engages with each of the first sheath (3) and the second sheath (4).

2. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 1, characterized in that, The output end of each of the first oil cylinders (2) is specifically a piston rod (2.1).

3. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 2, characterized in that, Each of the piston rods (2.1) is hinged to each of the bases (1.5).

4. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 1, characterized in that, Each of the first sheath (3) and the second sheath (4) is in a semi-cylindrical shape.

5. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 4, characterized in that, Each of the first sheaths (3) is provided with a plurality of protrusions (3.2), and each of the protrusions (3.2) is specifically a rectangular structure.

6. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 5, characterized in that, Each of the second sheaths (4) has a slot (4.2) adapted to each of the protrusions (3.2).

7. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 6, characterized in that, After the first sheath (3) and the second sheath (4) are engaged, a protective space is formed, and each of the first oil cylinders (2) is located in the protective space.

8. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 1, characterized in that, Each of the first sheath (3) and the second sheath (4) is provided with a first locking block (3.1) and a second locking block (4.1).

9. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 8, characterized in that, After the first card block (3.1) and the second card block (4.1) are combined, they are engaged with the locking parts (5.1).

10. The hydraulic synchronous jacking connection mechanism for tunnel lining formwork according to claim 1, characterized in that, The trolley body (1) is also provided with a top template (1.3), a top support (1.2) and a second oil cylinder (1.1) connected in sequence.

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