Annular formwork adjustable device for secondary lining formwork trolley

Abstract

The utility model discloses an adjustable device for an annular formwork of a secondary lining formwork trolley, which belongs to the technical field of secondary lining equipment in tunnel engineering and comprises two parallel running rails, sliding seats are arranged above the running rails, a plurality of supporting columns are arranged between the inner side faces of the sliding seats, and the supporting columns are arranged on the running rails. The sliding seats are driven by driving motors on the inner sides, a secondary lining trolley frame is arranged between the sliding seats, a plurality of plates are connected to the periphery of the secondary lining trolley frame through a plurality of hydraulic air cylinder piston rods and a top frame above the hydraulic air cylinder piston rods, and the plates are combined to form an annular formwork. And adjustable devices with symmetrical structures are arranged on the outer sides of the sliding seats. According to the adjustable device, on one hand, the two sides and the front-back connection position of the combined annular formwork can be adjusted, on the other hand, the installation stability of the lowest plates on the two sides of the annular formwork can be improved, and on the whole, the subsequent concrete pouring effect of the annular formwork is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary lining equipment for tunnel engineering, and more specifically to an adjustable device for a secondary lining template trolley with an annular template. Background Art

[0002] During tunnel construction, the secondary lining formwork trolley is first assembled in the tunnel, then moved to the designated position through the traveling mechanism, and then supported and adjusted by the supporting mechanism to ensure the stability and precision of the trolley. Finally, the concrete for the secondary lining is poured in the formwork, and after the concrete solidifies, the trolley can be disassembled and moved out of the tunnel. The secondary lining formwork trolley is one of the important equipment for realizing efficient, safe and high-quality construction of the secondary lining of the tunnel. The main structure consists of the gantry assembly, hydraulic system, traveling system, formwork assembly and operating platform. The gantry assembly is the load-bearing body of the trolley and is a truss structure. The formwork assembly is the key to determining the external dimensions and pouring quality of the cast-in-place concrete of the trolley.

[0003] For the secondary lining of the tunnel construction at the invert position, the casting formwork is a ring formwork. In the actual construction process, the following problems mainly exist: first, since the ring formwork has more combined plates, it is easy to be misaligned at the intersection of the lower edges on both sides of the ring formwork and the intersection of the front and rear sides, which is difficult to adjust and affects the concrete pouring effect; second, the lowest plates on both sides of the ring formwork are limited only by the upper clamps, and the stability is not good enough. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable device for the annular formwork of the secondary lining formwork trolley, which can, on the one hand, adjust the two sides of the combined annular formwork and the front and rear junction positions, and on the other hand, improve the installation stability of the lowest plates on both sides of the annular formwork, and overall improve the subsequent concrete pouring effect of the annular formwork.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A device for adjusting the annular formwork of a secondary lining formwork trolley comprises two parallel running tracks, each of which is provided with a sliding seat above the running tracks, a plurality of supporting columns are provided between the inner sides of the sliding seats, the sliding seats are driven by an inner driving motor, a secondary lining trolley frame is provided between the sliding seats, a plurality of plates are connected to the periphery of the secondary lining trolley frame through a plurality of hydraulic cylinder piston rods and an upper top frame above, the plurality of plates are combined into an annular formwork, a symmetrically structured adjustable device is provided on the outer side of the sliding seat, the adjustable device comprises two bottom plates symmetrically combined in front and rear structures and the two bottom plates pass through the area below the annular formwork after being combined, an adjusting cylinder is provided on the upper surface of the outer end of the bottom plate, a slide groove is provided on the upper surface of the adjusting cylinder and an L-shaped connecting rod is inserted into the slide groove, and the L-shaped connecting rod is inwardly connected to an outer clamping plate.

[0007] As a further optimization of the scheme of the present application, the outer clamping plate is arranged vertically, and a plurality of protrusions are provided on the outer side surface of the outer clamping plate, wherein the protrusion located at the bottom and the inner side of the outer clamping plate are provided with limiting guide rods and the remaining protrusions respectively correspond to the front and rear junction positions of the plates, wherein the limiting guide rods are staggered up and down and the lower side of the limiting guide rods located below are provided with shock-absorbing spring rods, and a plurality of support blocks are slidably mounted on the limiting guide rods, and the plurality of support blocks respectively correspond to the junction positions at the bottom of the plates.

[0008] As a further optimization of the solution of the present application, the lower end of the adjusting cylinder is placed inside the arc-shaped groove on the bottom plate, a threaded rod is provided inside the arc-shaped groove, the threaded rod passes through the lower end area of ​​the adjusting cylinder and both ends of the threaded rod are fixed on the inner side of the arc-shaped groove, and the adjusting cylinder is limited by nuts on the threaded rods on both sides of the adjusting cylinder.

[0009] As a further optimization of the solution of the present application, connecting plates with through holes are provided on the left and right sides of the upper surface of the inner end of the base plate, wherein the connecting plates of the two base plates symmetrically combined with the front and rear structures are connected together by bolts passing through the through holes, and the inner end of the limiting guide rod is processed with an external thread, wherein the front and rear limiting guide rods are connected together by a sleeve with an internal thread.

[0010] As a further optimization of the solution of the present application, the cross section of the support block is V-shaped, wherein the inner end of the V-shape is inserted into the upper area of ​​the inner sliding seat and the outer end of the V-shape fits the outer curved surface of the plate.

[0011] As a further optimization of the solution of the present application, the L-shaped connecting rod is limited by a locking nut on the outer side of the slide groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model limits the front and rear sides of the assembled plate by means of the outer clamping plate structures arranged at the front and rear sides of the annular module, and at the same time, limits the lower sides of the assembled plate by means of a plurality of supporting block structures arranged at the lower sides of the annular module, and adjusts the misalignment of the assembled annular template, so as to improve the stability of the assembled annular template, and at the same time, supports the lowermost plates on both sides upward, so as to further improve the stability of the annular template;

[0014] In the utility model, by setting an adjustment cylinder, an arc groove and a threaded rod structure, in conjunction with an upper height-adjustable L-shaped connecting rod structure, the height adjustment of the outer clamping plate and a plurality of support blocks can be achieved, and the outer clamping plate and the limiting guide rod structure combined in the front and rear can be conveniently disassembled and assembled inside the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the adjustable device of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the limit guide rod of the utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the outer clamping plate and the limiting guide rod of the utility model;

[0018] In the figure: 1. Travel track; 2. Drive motor; 3. Sliding seat; 4. Second lining trolley frame; 5. Hydraulic cylinder piston rod; 6. Top frame; 7. Plate; 8. Bottom plate; 9. Arc groove; 10. Support column; 11. Outer clamping plate; 12. Raised part; 13. L-shaped connecting rod; 14. Locking nut; 15. Adjusting cylinder; 16. Threaded rod; 17. Arc groove; 18. Nut; 19. Shock-absorbing spring rod; 20. Limiting guide rod; 21. Support block; 22. Bolt. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific diagrams.

[0020] In order to solve the problem that the existing annular template is prone to misalignment at the intersection of the lower edges of both sides and the intersection of the front and rear sides, and is difficult to adjust, such as Figure 1 and Figure 2As shown, the present application includes two parallel running rails 1, each of which is provided with a sliding seat 3 above the running rails 1, and a plurality of supporting columns 10 are provided between the inner sides of the sliding seat 3, the sliding seat 3 is driven by an inner driving motor 2, and a second lining trolley frame 4 is provided between the sliding seats 3, and a plurality of plates 7 are connected to the outer periphery of the second lining trolley frame 4 through a plurality of hydraulic cylinder piston rods 5 and an upper frame 6 above, and a plurality of plates 7 are combined into an annular template, and a symmetrically structured adjustable device is provided on the outer side of the sliding seat 3, and the adjustable device includes two bottom plates 8 symmetrically combined in front and rear structures, and the two bottom plates 8 are combined to pass through the area below the annular template, and an adjusting cylinder 15 is provided on the upper surface of the outer end of the bottom plate 8, and a slide groove is opened on the upper surface of the adjusting cylinder 15, and an L-shaped connecting rod 13 is inserted into the slide groove, and the L-shaped connecting rod 13 is inwardly connected to an outer card plate 11, and the outer card plate 11 is vertically arranged, and the outer side of the outer card plate 11 A plurality of raised portions 12 are provided, wherein the lowermost raised portion 12 and the inner side of the outer clamping plate 11 are provided with limiting guide rods 20 and the remaining raised portions 12 correspond to the front and rear intersection positions of the plates 7 respectively, wherein the limiting guide rods 20 are staggered up and down and the lower side of the limiting guide rods 20 located at the bottom is provided with a shock-absorbing spring rod 19, a plurality of support blocks 21 are slidably sleeved on the limiting guide rods 20, and the plurality of support blocks 21 correspond to the intersection positions below the plates 7 respectively, the lower end of the adjusting cylinder 15 is placed inside the arc groove 17 on the bottom plate 8, a threaded rod 16 is provided inside the arc groove 17, the threaded rod 16 passes through the lower end area of ​​the adjusting cylinder 15 and both ends of the threaded rod 16 are fixed to the inner side surface of the arc groove 17, the adjusting cylinder 15 is limited by the nuts 18 on the threaded rods 16 on both sides of the adjusting cylinder 15, and the L-shaped connecting rod 13 is limited by the locking nuts 14 on the outer side surface of the slide groove;

[0021] Specifically, the outer clamping plate 11 structure is set on the front and rear sides of the annular module to limit the front and rear sides of the assembled plate 7. At the same time, the support blocks 21 structure is set on the lower sides of the annular module to limit the lower sides of the assembled plate 7. The misalignment of the assembled annular template is adjusted to improve the stability of the assembled annular template.

[0022] In order to solve the problem that the lowest plate 7 on both sides of the annular template is limited only by the upper clamps, the stability is not good enough, such as Figure 3 As shown, connecting plates with through holes are provided on the left and right sides of the upper surface of the inner end of the bottom plate 8, wherein the connecting plates of the two bottom plates 8 symmetrically combined with the front and rear structures are connected together by bolts 22 passing through the through holes, and the inner ends of the limiting guide rods 20 are processed with external threads, wherein the front and rear limiting guide rods 20 are connected together by sleeves 9 with internal threads, and the cross section of the support block 21 is V-shaped, wherein the inner end of the V-shaped is inserted into the upper area of ​​the inner sliding seat 3 and the outer end of the V-shaped is in contact with the outer arc surface of the plate 7;

[0023] Specifically, a number of V-shaped support blocks 21 with special structures are used to support the junction area of ​​the lowest plates 7 on both sides, thereby improving stability. Secondly, in order to facilitate the disassembly and assembly of the device, a bottom plate 8 and a limiting guide rod 20 structure that can be combined front and back are provided, so as to facilitate the installation of the device on both sides of the secondary lining trolley.

[0024] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable device for the annular formwork of a secondary lining formwork trolley, comprising two parallel running tracks, each of which is provided with a sliding seat, a plurality of support columns are provided between the inner sides of the sliding seats, the sliding seats are driven by the inner driving motor, a secondary lining trolley frame is provided between the sliding seats, the outer periphery of the secondary lining trolley frame is connected with a plurality of plates through a plurality of hydraulic cylinder piston rods and a top frame above, the plurality of plates are combined into an annular formwork, characterized in that: The outer side of the sliding seat is provided with a structurally symmetrical adjustable device, the adjustable device includes two bottom plates with symmetrical front and rear structures, and the two bottom plates are combined to penetrate the area below the annular template, the upper surface of the outer end of the bottom plate is provided with an adjusting cylinder, the upper surface of the adjusting cylinder is provided with a slide groove, and an L-shaped connecting rod is inserted into the slide groove, the L-shaped connecting rod is connected inwardly with an outer clamping plate, the outer clamping plate is vertically arranged, and the outer side surface of the outer clamping plate is provided with a plurality of protrusions, wherein the protrusion located at the bottom and the inner side of the outer clamping plate are provided with limiting guide rods, and the remaining protrusions respectively correspond to the front and rear intersection positions of the plates, wherein the limiting guide rods are staggered up and down and the lower side of the limiting guide rod located below is provided with a shock-absorbing spring rod, and the sliding sleeve on the limiting guide rod is provided with a plurality of support blocks, and the plurality of support blocks respectively correspond to the intersection positions below the plates.

2. The device for adjusting the annular template of the secondary lining template trolley according to claim 1 is characterized in that: The lower end of the adjusting cylinder is placed inside the arc-shaped groove on the bottom plate, a threaded rod is provided inside the arc-shaped groove, the threaded rod passes through the lower end area of ​​the adjusting cylinder and both ends of the threaded rod are fixed on the inner side of the arc-shaped groove, and the adjusting cylinder is limited by nuts on the threaded rods on both sides of the adjusting cylinder.

3. The device for adjusting the annular template of the secondary lining template trolley according to claim 2 is characterized in that: Connecting plates with through holes are provided on the left and right sides of the upper surface of the inner end of the base plate, wherein the connecting plates of the two base plates symmetrically combined with the front and rear structures are connected together by bolts passing through the through holes, and the inner end of the limiting guide rod is processed with an external thread, wherein the front and rear limiting guide rods are connected together by a sleeve with an internal thread.

4. The device for adjusting the annular template of the secondary lining template trolley according to claim 3 is characterized in that: The support block has a V-shaped cross section, wherein the inner end of the V-shape is inserted into the upper area of ​​the inner sliding seat and the outer end of the V-shape is in contact with the outer curved surface of the plate.

5. The device for adjusting the annular template of the secondary lining template trolley according to claim 4 is characterized in that: The L-shaped connecting rod is limited by a locking nut on the outer side of the sliding groove.

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