A tunnel invert block mold structure that is easy to demould and breathable

Abstract

The utility model relates to a tunnel inverted arch block mold mechanism which is convenient for demoulding and breathable, comprising a bottom mold, two side molds slidably arranged on both sides of the bottom mold, two end molds flippedly arranged at both ends of the bottom mold, a plurality of groups of punch mold assemblies whose two ends are respectively and sequentially inserted on opposite sides of the two side molds at intervals and each side can be removed separately, and a plurality of groups of supporting assemblies respectively arranged in the plurality of groups of punch mold assemblies; the tops and bottoms of the plurality of groups of punch mold assemblies are breathable; the utility model can effectively discharge the gas at the bottom of the punch mold assembly through the breathable punch mold assembly, avoid the appearance of many bubbles and pits on the surface of the prefabricated part after the prefabricated part is formed, thereby improving the product quality, and by inserting the two ends of the punch mold assembly on the inner walls of the two side molds, the side mold is separated from the punch mold assembly during demoulding, and then the worker only needs to knock down the top and the bottom to complete the demoulding, which is not only convenient but also efficient.

Description

Technical Field

[0001] The utility model relates to the field of tunnel invert block moulds, in particular to a tunnel invert block mould mechanism which is convenient for demoulding and air permeable. Background Art

[0002] The tunnel boring machine (TBM) is a systematic, intelligent, and factory-based high-efficiency tunnel excavation construction machinery that can excavate a tunnel in one go and simultaneously complete the entire process of tunnel construction, including excavation and advancement, slag transportation, ventilation and dust removal, guidance control, support lining and advance treatment, wind, water, electricity and material supply, and realizes automated monitoring, making it suitable for tunnel construction in ultra-long underground caverns.

[0003] When a tunnel boring machine is used for tunnel excavation, reinforced concrete arch blocks are lined at the bottom of the tunnel. The reinforced concrete arch blocks are prefabricated by mold casting.

[0004] When the existing mold is cast, the core area in the mold is relatively large. After the mud is poured, the air holes are difficult to discharge, resulting in many air bubbles and potholes in the casting part of the prefabricated part in contact with the lower surface of the core after the prefabricated part is formed. The quality of the outer surface is unqualified, and the core of the existing mold is integrated, which makes demoulding more troublesome and affects efficiency. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a tunnel invert block mold mechanism which is convenient for demoulding and breathable.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a tunnel arch block mold mechanism which is convenient for demoulding and breathable, comprising a bottom mold with a concave arc-shaped upper end surface, four groups of slide rail assemblies arranged inside the bottom mold and passing through the two sides of the bottom mold respectively, two side molds slidably arranged on both sides of the length direction of the bottom mold and the bottoms of which are respectively connected to the four groups of slide rail assemblies, two end molds flipped at both ends of the bottom mold by hinge assemblies, multiple groups of punch assemblies whose two ends are respectively inserted in the middle of the opposite sides of the two side molds in sequence along the length direction of the bottom mold and each side can be removed separately and have cavities inside, and multiple groups of support assemblies respectively arranged in the multiple groups of punch assemblies for supporting the tops and bottoms of the multiple groups of punch assemblies; one end of the multiple groups of support assemblies are hinged to the tops of the multiple groups of punch assemblies, and the other ends are respectively slidably embedded in the bottoms of the multiple groups of punch assemblies; the tops and bottoms of the multiple groups of punch assemblies can be breathable.

[0007] Preferably, multiple groups of the punch assemblies all include a slot arranged on the side mold with the same shape as the punch assembly, a top plate, a bottom plate and two side plates with one end respectively inserted into the slot and two adjacent edges fitting each other; the fitting surfaces between the top plate, the bottom plate and the two side plates are all inclined; and a number of small ventilation holes are provided on the top plate and the bottom plate.

[0008] Preferably, the plurality of ventilation holes on the top plate and the bottom plate are formed by laser perforation.

[0009] Preferably, multiple groups of the support components include a slide groove arranged in the middle of the bottom plate and with both ends extending to the two ends of the bottom plate insertion slot, a slide plate arranged in the slide groove and with the same length as the slide groove, a support plate hinged at one end in the middle of the top plate and at the other end in the middle of the slide plate, and two knocking plates respectively arranged at both ends of the slide plate and away from the insertion slot part for knocking out the slide plate.

[0010] Preferably, the outer side surfaces of the two side molds and the two end molds are provided with reinforcing ribs arranged in a criss-cross pattern.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The utility model can effectively discharge the gas at the bottom of the punch assembly through the breathable punch assembly, so as to avoid the appearance of many bubbles and potholes on the surface of the preform after the preform is formed, thereby improving the product quality. In addition, by inserting the two ends of the punch assembly into the inner walls of the two side molds, the side molds are separated from the punch assembly during demolding. Then, the worker only needs to knock down the top and the bottom first to complete the demolding, which is not only convenient but also efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0014] Attached Figure 1 It is a schematic diagram of the overall structure of the mold mechanism of the tunnel invert block that is easy to demould and breathable according to the utility model;

[0015] Attached Figure 2 It is a front cross-sectional structural schematic diagram of the mold mechanism of the tunnel invert block that is easy to demould and breathable according to the utility model;

[0016] Attached Figure 3 The utility model is a tunnel invert block mold structure that is convenient for demoulding and breathable Figure 2 A schematic diagram of the enlarged partial cross-sectional structure at point A;

[0017] Attached Figure 4 The utility model is a tunnel invert block mold structure that is convenient for demoulding and breathable Figure 2 An enlarged schematic diagram of the partial cross-sectional structure at B;

[0018] Attached Figure 5 This is a schematic diagram of the inner wall structure of the side mold that is easy to demould and breathable according to the utility model.

[0019] Among them: 1. bottom mold; 2. slide rail assembly; 3. side mold; 4. hinge assembly; 5. end mold; 6. punch assembly; 61. slot; 62. top plate; 63. bottom plate; 64. side plate; 65. ventilation holes; 7. support assembly; 71. slide groove; 72. slide plate; 73. support plate; 74. knocking plate; 8. reinforcing ribs. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Attached Figure 1-5 The tunnel inverted arch block mold mechanism with convenient demoulding and ventilation described in the utility model comprises a bottom mold 1 with a concave arc-shaped upper end surface, four groups of slide rail assemblies 2 arranged inside the bottom mold 1 and passing through the two sides of the bottom mold 1 respectively, two side molds 3 slidably arranged on both sides of the length direction of the bottom mold 1 and the bottoms are respectively connected to the four groups of slide rail assemblies 2, two end molds 5 set at both ends of the bottom mold 1 are flipped by hinge assemblies 4, multiple groups of punch assemblies 6 with hollow interiors that are inserted in the middle of the opposite sides of the two side molds 3 in sequence along the length direction of the bottom mold 1 and each side can be removed separately, and multiple groups of support assemblies 7 are respectively arranged in the multiple groups of punch assemblies 6 for supporting the tops and bottoms of the multiple groups of punch assemblies 6; one end of the multiple groups of support assemblies 7 is hinged to the top of the multiple groups of punch assemblies 6, and the other end is slidably embedded in the bottom of the multiple groups of punch assemblies 6; the top of the multiple groups of punch assemblies 6 and the bottom are all breathable; multiple groups of the male mold components 6 all include a slot 61 arranged on the side mold 3 and having the same shape as the male mold component 6, a top plate 62, a bottom plate 63 and two side plates 64, one end of which is respectively inserted into the slot 61 and the two adjacent edges are fitted together; the fitted surfaces between the top plate 62, the bottom plate 63 and the two side plates 64 are all inclined; a number of breathable holes 65 are provided on the top plate 62 and the bottom plate 63; multiple groups of the supporting components 7 all include a slide groove 71 arranged in the middle of the bottom plate 63 and with both ends extending to the two ends of the bottom plate 63 inserted into the slot 61, a slide plate 72 arranged in the slide groove 71 and having the same length as the slide groove 71, a supporting plate 73 with one end hinged to the middle of the top plate 62 and the other end hinged to the middle of the slide plate 72, and two knocking plates 74 respectively arranged at both ends of the slide plate 72 and away from the insertion slot 61 for knocking out the slide plate 72.

[0022] Furthermore, the plurality of ventilation holes 65 on the top plate 62 and the bottom plate 63 are formed by laser punching, which facilitates processing.

[0023] Furthermore, the outer side surfaces of the two side molds 3 and the two end molds 5 are provided with crisscross-placed reinforcing ribs 8 to increase strength.

[0024] When in use: when pouring is required, first open the two side molds 3 through the four sets of slide rail assemblies 2, then insert the slide plate 72 into the slide groove 71 on the bottom plate 63, and then insert the two side panels 64 into the slots 61 on one of the side molds 3, and then insert the top plate 62 and the bottom plate 63 into the slots 61, and then one end of the slide plate 72 is also inserted into the slot 61. At this time, the support plate 73 hinged between the top plate 62 and the slide plate 72 is in the best vertical support state, and then close the two side molds 3 and then insert the top plate 62, the bottom plate 63, the two side panels 64 and the other end of the slide plate 72 into the slot 61 of the other side film, and then introduce the mud into the mold. During pouring, the several ventilation holes 65 on the top plate 62 and the bottom plate 63 will expel the air in the mud. At this time, the support plate 73 supports the top plate 62 and the bottom plate 63 to prevent deformation, and the top plate 62, the bottom plate 63 and the two side panels 64 are tilted The mutually fitting surfaces support each other to avoid deformation. After the pouring is completed, wait for the forming demoulding. When demoulding, open the side mold 3 and the end face. Since the top plate 62, the bottom plate 63 and the two side plates 64 are inserted into the slots 61 on the two side molds 3, and the top plate 62, the bottom plate 63 and the two side plates 64 are fitted together with the prefabricated part, after the side mold 3 is opened, the top plate 62, the bottom plate 63 and the two side plates 64 are all separated from the slots 61, and then the knocking plate 74 on the slide plate 72 is knocked to one side. The slide plate 72 receives the force and slides toward one side of the slide groove 71 of the bottom plate 63. The sliding drives the support plate 73 to move, and then the support plate 73 drives the top plate 62 to move downward and away from the surface of the prefabricated part, and then knocks off the bottom plate 63, and finally knocks off the two side plates 64, and then completes the demoulding, and finally removes the prefabricated part from the bottom mold 1; since the slide rail assembly 2 and the hinge assembly 4 are prior art, they are not described in detail.

[0025] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A tunnel invert block mold structure that is easy to demould and breathable, characterized by: It comprises a bottom mold with a concave arc-shaped upper end surface, four groups of slide rail assemblies arranged inside the bottom mold and passing through both sides of the bottom mold respectively, two side molds slidably arranged on both sides of the length direction of the bottom mold and the bottoms of which are respectively connected to the four groups of slide rail assemblies, two end molds flipped at both ends of the bottom mold by hinge assemblies, multiple groups of punch assemblies with both ends inserted in the middle of opposite sides of the two side molds in sequence along the length direction of the bottom mold and each side can be removed separately and have cavities inside, and multiple groups of support assemblies respectively arranged in the multiple groups of punch assemblies for supporting the tops and bottoms of the multiple groups of punch assemblies; one end of the multiple groups of support assemblies are hinged to the tops of the multiple groups of punch assemblies, and the other ends are slidably embedded in the bottoms of the multiple groups of punch assemblies; the tops and bottoms of the multiple groups of punch assemblies are all breathable.

2. The mold structure for tunnel invert block that is easy to demould and breathable according to claim 1 is characterized in that: Multiple groups of the male mold assemblies all include a slot arranged on the side mold with the same shape as the male mold assembly, a top plate, a bottom plate and two side plates with one end respectively inserted into the slot and two adjacent edges fitting each other; the fitting surfaces between the top plate, the bottom plate and the two side plates are all inclined; and a number of small ventilation holes are provided on the top plate and the bottom plate.

3. The mold structure for tunnel invert block that is easy to demould and breathable according to claim 2 is characterized in that: The plurality of ventilation holes on the top plate and the bottom plate are formed by laser dot holes.

4. The mold structure for tunnel invert block with convenient demoulding and ventilation according to claim 1, characterized in that: Multiple groups of the supporting components all include a slide groove arranged in the middle of the bottom plate and with both ends extending to the two ends of the bottom plate insertion slot, a slide plate arranged in the slide groove and with the same length as the slide groove, a supporting plate hinged at one end in the middle of the top plate and at the other end in the middle of the slide plate, and two knocking plates respectively arranged at both ends of the slide plate and away from the insertion slot part for knocking out the slide plate.

5. The mold structure for a tunnel invert block that is easy to demould and breathable according to any one of claims 1 to 4, characterized in that: The outer sides of the two side molds and the two end molds are provided with reinforcing ribs arranged in a crisscross pattern.

Images