A high-efficiency production device for nodular cast iron micro-top pipe

Abstract

The utility model relates to nodular cast iron micro -top pipe production equipment technical field discloses a kind of for nodular cast iron micro -top pipe's high -efficient production device, including for the outer mould of being inserted into nodular cast iron micro -top pipe to be poured and for the fixed base of placing nodular cast iron micro -top pipe to be poured, outer mould includes the formwork of being symmetrically arranged, one side end portion of two side formworks is hinged together by setting mould hinge, other side end portion is fixedly connected together by setting mouth assembly, two side formworks are closed circular cylindrical structure under the action of mouth assembly after rotating and closing under the action of mould hinge;The outer wall of two side formworks is fixedly provided with vibrator mounting seat for installing vibrator, two side vibrator mounting seats are symmetrically arranged;The utility model is by setting vibrator mounting seat on outer mould to be able to realize the additional installation of vibrator, with the advantages of reducing mould cost investment, improving production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high-efficiency production device for nodular cast iron micro-tube, belong to the technical field of nodular cast iron micro-tube production equipment. BACKGROUND

[0002] With the popularization rate of urbanization, traditional underground pipeline construction method (such as open cut method) has been unable to adapt to the complex underground space of modern city, dense ground building and traffic, and nodular cast iron micro-tube has become the key pipe material to solve the demand of urban underground pipeline with its characteristics of "trenchless construction + convenient construction + material performance advantage".

[0003] Nodular cast iron micro-tube refers to DN80-DN800 caliber pipe, and its length is generally 1-2 meters, which can also be according to customer's demand, but generally not more than 2 meters. Its joint form is diversified (double insertion, double bearing, single insertion, single bearing, etc.), and the most important thing is that it is different from traditional pipe jacking in construction jacking. It does not need to rely on excavation of underground soil for jacking construction, but directly jacks, and the jacking process is completed by relying on the compactness of the surrounding soil. Construction is very convenient.

[0004] At present, in the traditional nodular cast iron micro-tube project, the outer wall concrete grouting is an indispensable process of micro-tube, because the micro-tube construction is convenient, and the jacking speed is very fast, and the production time of traditional micro-tube is long, so the construction progress is often affected by the shortage of micro-tube material supply.

[0005] Traditional nodular cast iron micro-tube production is to assemble blank pipe (length according to design requirements) in mold, then conduct concrete (flowing concrete, slump 100-140mm) grouting, and demould after steam curing for 8 hours. If you want to complete 60 pieces per day, you need 60 molds for operation. If two shifts are produced, 30 sets of molds are needed to meet the daily production requirement. There are problems of large mold cost investment and low production efficiency. UTILITY MODEL CONTENTS

[0006] In order to solve the above problems existing in the prior art, the utility model provides a kind of high-efficiency production device for nodular cast iron micro-tube.

[0007] The technical scheme of the utility model is as follows: The utility model provides a kind of high-efficiency production device for nodular cast iron micro pipe, including the outer mould for being set into the nodular cast iron micro pipe to be poured and the fixed base for placing the nodular cast iron micro pipe to be poured, the outer mould includes the formwork of symmetrical arrangement, one side end of two side formworks is hinged together by setting mould hinge, and the other side end is fixedly connected together by setting joint assembly, and the closed circular column structure is formed under the action of joint assembly after the rotation of two side formworks under the action of mould hinge and closing.

[0008] Wherein, the top of the two side formworks is provided with a flow guide plate, and the two side flow guide plates form a conical structure after the closing of the two side formworks.

[0009] Wherein, the outer wall of the two side flow guide plates is provided with a reinforcing plate, and the reinforcing plate connects the flow guide plate and the corresponding formwork together.

[0010] Wherein, the end position of the two side flow guide plates close to the side of the mould hinge is also provided with a avoiding slot.

[0011] Wherein, the outer wall of the two side formworks is also provided with a reinforcing ring arranged symmetrically.

[0012] Wherein, the joint assembly includes a joint plate arranged on the two side formworks, and the two side joint plates are provided with a connecting hole, and the two side connecting holes can make the two side joint plates close together by passing through a connecting bolt and locking a locking nut on the connecting bolt.

[0013] Wherein, the closing surface of one side of the joint plate is provided with a first sealing groove, and the first sealing groove is provided with a sealing strip.

[0014] Wherein, the closing surface of the two side joint plates is arranged in a stepped structure.

[0015] Wherein, the fixed base includes a base fixing seat, the diameter of the base fixing seat is greater than the outer diameter of the outer mould, the top of the base fixing seat is provided with a plug, the upper part of the base fixing seat is provided with a socket disc, the bottom of the socket disc is provided with a slot matched with the plug, the socket disc is connected with the base fixing seat by inserting the plug into the slot, the outer diameter of the socket disc is matched with the inner diameter of the outer mould, the socket disc is provided with a connecting groove for the joint of the nodular cast iron micro pipe to be poured, the outer wall of the socket disc is provided with a second sealing groove, and the second sealing groove is provided with a second sealing ring.

[0016] Wherein, the base fixing seat is provided with a threaded connecting hole, the socket disc is provided with a plug hole matched with the threaded connecting hole, and the base fixing seat and the socket disc are fixedly connected by inserting a connecting screw into the plug hole and the threaded connecting hole.

[0017] The utility model has the advantages of the following: The utility model discloses a vibrating device for the outer mold, comprising a fixed base, a plurality of vibrating device mounting seats and a plurality of vibrating devices, wherein the fixed base is provided with a plurality of vibrating device mounting seats, and the vibrating device mounting seat is provided with a vibrating device, and the vibrating device mounting seat is symmetrically arranged on the two side templates, so that the vibrating device can evenly vibrate the concrete in the outer mold, and the vibrating force is increased, which meets the use requirement of dry concrete (slump 30-80mm) in the pouring work, and the dry concrete can be used instead of the original fluidity concrete, and the dry concrete can be demoulded after vibrating, without curing for 8 hours, and only needs to be vibrated for 15 minutes or so, which greatly shortens the production time, saves the number of molds under the same production capacity, and has the advantages of reducing the mold cost and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure diagram of the outer mold in the utility model; Figure 2 It is a top view of the outer mold in the utility model; Figure 3 It is an enlarged view of A in Figure 2 Figure 4 It is a structure diagram of the fixed base in the utility model.

[0019] The reference signs in the drawings are represented as: 1, outer mold, 11, template, 12, mold hinge, 13, vibrating device mounting seat, 14, guide plate, 15, reinforcing plate, 16, avoiding groove, 17, reinforcing ring, 2, fixed base, 21, base fixed seat, 22, plug, 23, socket disc, 24, insertion slot, 25, connecting groove, 26, second sealing groove, 27, threaded connection hole, 28, insertion hole, 3, joint assembly, 31, joint plate, 32, connecting hole, 33, connecting bolt, 34, locking nut, 35, first sealing groove, DETAILED DESCRIPTION The utility model will be explained in detail in combination with the drawings and specific embodiments.

[0020] Embodiment: please refer to Figures 1 to 4 ​The embodiment provides a high-efficiency production device for nodular cast iron micro-top pipe, which comprises an outer mold 1 for sleeving a nodular cast iron micro-top pipe to be cast and a fixed base 2 for placing the nodular cast iron micro-top pipe to be cast. In the embodiment, the outer mold 1 comprises symmetrical mold plates 11, one side end of the two mold plates 11 is hinged together through a mold hinge 12, so that the two mold plates 11 can be opened and closed, and the other side end of the two mold plates 11 is fixedly connected together through a joint assembly 3, so that the two mold plates 11 can be fixedly closed during concrete casting. The two mold plates 11 can form a closed circular column structure for concrete casting under the action of the mold hinge 12 and the joint assembly 3, the inner diameter of the circular column structure is greater than the outer diameter of the nodular cast iron micro-top pipe to be cast, so that the nodular cast iron micro-top pipe to be cast can be sleeved. A vibrator mounting seat 13 for mounting a vibrator is fixedly arranged on the outer wall of each mold plate 11, and the two vibrator mounting seats 13 are symmetrically arranged.

[0021] In the embodiment, the fixed base 2 comprises a base fixed base 21, the diameter of the base fixed base 21 is greater than the outer diameter of the outer mold 1, so that the outer mold 1 can be placed on the base fixed base 21, the top of the base fixed base 21 is provided with an insertion block 22, the upper portion of the base fixed base 21 is provided with an insertion disc 23, the bottom of the insertion disc 23 is provided with an insertion groove 24 which is adaptively arranged with the insertion block 22, the insertion disc 23 is connected with the base fixed base 21 through the insertion groove 24 and the insertion block 22, the outer diameter of the insertion disc 23 is adaptively arranged with the inner diameter of the outer mold 1, i.e. the inner diameter of the closed circular column structure formed by the two mold plates 11 after being closed, the insertion disc 23 is provided with a connecting groove 25 for sleeving a joint of the nodular cast iron micro-top pipe to be cast, the nodular cast iron micro-top pipe to be cast is sleeved in the connecting groove 25 to be fixedly connected with the insertion disc 23, and the outer wall of the insertion disc 23 is provided with a second sealing groove 26 which is annularly arranged, and the second sealing groove 26 is provided with a second sealing ring.

[0022] Through the foregoing arrangement, when the pouring work is carried out, first, the socket disc 23 is connected to the base fixing seat 21 through the plug-in connection of the insertion slot 24 and the insertion block 22, then the base fixing seat 21 is horizontally fixed and arranged in the grouting pit, then the ductile iron micro-top pipe to be poured is hoisted to the socket disc 23, and the joint of the ductile iron micro-top pipe to be poured is arranged in the connecting slot 25 to connect the ductile iron micro-top pipe to be poured with the socket disc 23. Then the outer mold 1 forming a closed circular cylindrical structure is hoisted to sleeve the ductile iron micro-top pipe to be poured inside, and the bottom of the outer mold 1 is on the top surface of the base fixing seat 21. At this time, the second sealing ring of the socket disc 23 can seal the gap between the inner wall of the outer mold 1 and the outer wall of the socket disc 23, so as to avoid the downward leakage of the concrete. After the hoisting of the outer mold 1 is completed, the vibrator can be arranged on the two side vibrator mounting seats 13 on the outer mold 1. The vibrator can be a high-frequency vibrator with a vibration frequency of 1500-3000 r / min and a vibration amplitude of 0.3-0.8 mm, so as to increase the vibration intensity. Then, the required pouring work can be carried out after the discharge cone is installed on the ductile iron micro-top pipe to be poured. When the pouring work is carried out, since the vibration intensity of the concrete at this time meets the use requirement of dry concrete, the dry concrete is used to replace the original fluid concrete for pouring. After vibration for about 15 minutes, demolding can be directly carried out without demolding.

[0023] In actual use, the outer mold 1 can be cleaned, coated with a release agent, and the like according to actual requirements. Such operations are conventional technical means in the prior art, and thus will not be described in detail.

[0024] In order to facilitate the pouring work, in the embodiment, the top of each of the two side molds 11 is fixedly provided with a flow guide plate 14. The two side flow guide plates 14 form a conical structure after the two side molds 11 are closed, so as to play a good flow guiding role. It should be noted that the conical structure formed by the two side flow guide plates 14 after being closed should have a gap. The gap is used for air extrusion during subsequent grouting. In order to avoid leakage of the concrete, the grouting head should avoid the gap during subsequent pouring work.

[0025] In order to improve the structural strength of the flow guide plate 14, in the embodiment, the outer wall of each of the two side flow guide plates 14 is fixedly provided with a reinforcing plate 15. The reinforcing plate 15 fixedly connects the flow guide plate 14 and the corresponding mold 11 together, so as to improve the structural strength of the flow guide plate 14 and prevent the flow guide plate 14 from being bent.

[0026] To ensure that the two side templates 11 can open and close smoothly, in this embodiment, the ends of the two side guide plates 14 close to the mold hinge 12 are also provided with clearance grooves 16. The clearance grooves 16 ensure that the two side guide plates 14 will not collide when they follow the two side templates 11 to open and close, thereby ensuring that the two side templates 11 can open and close smoothly.

[0027] To improve the structural strength of the outer mold 1, in this embodiment, reinforcing rings 17 are also provided on the outer walls of both side templates 11 in a symmetrical arrangement. The reinforcing rings 17 improve the structural strength of the outer mold 1 by dispersing the stress on the template 11 and providing a rigid support point for the template 11.

[0028] To ensure the connection stability between the chassis mounting base 21 and the socket plate 23, in this embodiment, the chassis mounting base 21 is further provided with a threaded connection hole 27, and the socket plate 23 is provided with a socket hole 28 that is adapted to the threaded connection hole 27. The specific number and distribution of the threaded connection hole 27 and the socket hole 28 can be selected and set according to the actual situation, and are not limited here. The chassis mounting base 21 and the socket plate 23 can be fixedly connected together by inserting connecting screws into the socket hole 28 and the threaded connection hole 27, thereby further ensuring the connection stability between the chassis mounting base 21 and the socket plate 23.

[0029] In this embodiment, the mating assembly 3 includes mating plates 31 on the ends of both side templates 11 away from the mold hinge 12. The mating plates 31 are arranged along the height direction of their respective side templates 11. Each mating plate 31 has several connecting holes 32. The specific number of connecting holes 32 can be selected according to actual conditions, and the connecting holes 32 are distributed one-to-one on both side mating plates 31. All corresponding connecting holes 32, through which connecting bolts 33 pass and locking nuts 34 are inserted, allow the mating plates 31 to be pressed together, thereby fixing the ends of the two side templates 11 together.

[0030] To prevent concrete from seeping out through the gap between the two mating plates 31, in this embodiment, a first sealing groove 35 is provided on the mating surface of one of the mating plates 31, and a sealing strip is provided in the first sealing groove 35. The mating surfaces of the two mating plates 31 are also arranged in a stepped structure. The sealing strip can seal the gap between the two mating plates 31, thereby preventing concrete from seeping out through the gap between the two mating plates 31. The stepped structure of the mating surfaces can increase the contact area between the two mating plates 31, making them fit more tightly, thereby further preventing concrete from seeping out through the gap between the two mating plates 31.

[0031] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A high-efficiency production device for ductile iron micro-jacking pipes, characterized in that: The system includes an outer mold (1) for fitting the micro ductile iron pipe to be poured and a fixed base (2) for placing the micro ductile iron pipe to be poured. The outer mold (1) includes templates (11) arranged symmetrically. One end of one side of the templates (11) is hinged together by a mold hinge (12), and the other end is fixedly connected together by a fitting assembly (3). The templates (11) rotate and fit together under the action of the mold hinge (12), and then form a closed annular columnar structure under the action of the fitting assembly (3). Vibrator mounting seats (13) for installing vibrators are fixedly provided on the outer walls of both templates (11). The vibrator mounting seats (13) on both sides are arranged symmetrically.

2. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 1, characterized in that: The top of both templates (11) is provided with a guide plate (14), and the guide plates (14) on both sides form a cone-shaped structure after the templates (11) on both sides are joined together.

3. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 2, characterized in that: Both sides of the guide plate (14) are provided with reinforcing plates (15) on their outer walls, and the reinforcing plates (15) connect the guide plate (14) to the corresponding template (11).

4. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 2, characterized in that: The guide plates (14) on both sides are also provided with clearance grooves (16) at the ends of the guide plates (14) close to the mold hinge (12).

5. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 1, characterized in that: The outer walls of the templates (11) on both sides are also provided with symmetrically arranged reinforcing rings (17).

6. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 1, characterized in that: The fitting assembly (3) includes fitting plates (31) provided on both sides of the template (11). Both sides of the fitting plates (31) are provided with connecting holes (32). The connecting holes (32) on both sides can be tightened together by passing through the connecting bolts (33) and locking the locking nuts (34) into the connecting bolts (33).

7. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 6, characterized in that: A first sealing groove (35) is provided on the mating surface of one side of the mating plate (31), and a sealing strip is provided in the first sealing groove (35).

8. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 7, characterized in that: The mating surfaces of the mating plates (31) on both sides are arranged in a stepped structure.

9. The high-efficiency production device for ductile iron micro-jacking pipes according to claim 1, characterized in that: The fixed base (2) includes a chassis fixed base (21), the diameter of which is larger than the outer diameter of the outer mold (1). A plug block (22) is provided on the top of the chassis fixed base (21), and a socket plate (23) is provided above the chassis fixed base (21). A slot (24) adapted to the plug block (22) is provided at the bottom of the socket plate (23). The socket plate (23) is connected to the plug block (22) through the slot (24) to be connected to the chassis fixed base (21). The outer diameter of the socket plate (23) is adapted to the inner diameter of the outer mold (1). A connecting groove (25) for the connector of the ductile iron micro-jacking pipe to be cast is provided on the socket plate (23). A second sealing groove (26) is provided on the outer wall of the socket plate (23), and a second sealing ring is provided in the second sealing groove (26).

10. A high-efficiency production device for ductile iron micro-jacking pipes according to claim 9, characterized in that: The chassis mounting base (21) is provided with a threaded connection hole (27), and the socket plate (23) is provided with a socket hole (28) that is adapted to the threaded connection hole (27). The chassis mounting base (21) and the socket plate (23) are fixedly connected together by inserting connecting screws into the socket hole (28) and the threaded connection hole (27).

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