Automatic shrinkage mold for prefabricating underground pipe gallery pipe joints

Abstract

The utility model belongs to the field of pipe gallery pipe joint prefabrication, and provides an automatic shrinkage mold for underground pipe gallery pipe joint prefabrication, which comprises a bottom mold, an outer mold assembly, an inner mold assembly and an automatic shrinkage part, the outer mold assembly comprises two groups of first outer molds and two groups of second outer molds; the inner die assembly comprises a first inner die, second inner dies installed on the two sides of the first inner die, two sets of fourth inner dies and fourth inner dies installed between the two sets of third inner dies in a hinged mode. An inner angle mold is arranged on the side, facing the first inner mold, of the second inner mold, an inner angle mold is arranged on the side, facing the second inner mold, of the third inner mold, and the first inner mold, the second inner mold and the third inner mold are all hinged to the bottom mold; according to the utility model, the automatic contraction part is arranged, so that the inner mold is quickly supported, a worker does not need to enter the inner mold for screw connection during mold assembly and mold disassembly, the operation is convenient and simple, the mold does not need to be lifted out, the mold is automatically contracted, a product is directly lifted out, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of pipe gallery pipe segment prefabrication, in particular to an automatic shrinking mould for prefabrication of pipe segments in an underground pipe gallery. Background Art

[0002] Underground utility corridors are public tunnels within cities used to centrally lay municipal pipelines for electricity, communications, radio and television, water supply, drainage, heating, gas, and other services. The molds used to cast pipe segments in underground pipeline corridors play a crucial role in their construction. Precise mold design and manufacture ensure accurate dimensions for pipeline segments, meeting design requirements and facilitating connection and installation. Using appropriate molds enables mass production of segments, increasing production speed and shortening construction cycles. A good mold ensures uniform stress distribution during concrete pouring, reducing cracks and defects and improving the strength and durability of the segments.

[0003] The outer mold in the existing mold usually has the function of guide rail displacement, but the inner mold needs to be manually removed after the concrete solidifies before the product can be hoisted, resulting in low construction efficiency and affecting the production of pipe sections.

[0004] To this end, those skilled in the art have proposed an automatic shrinking mold for prefabricating pipe sections in underground pipe corridors to solve the problems raised in the background art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an automatic shrinking mold for prefabrication of underground pipe corridor pipe segments, so as to solve the problem that the outer mold in the mold in the existing technology usually has the function of guide rail displacement, but the inner mold needs to be manually removed after the concrete solidifies before the product can be hoisted, resulting in low construction efficiency and affecting the production of pipe segments.

[0006] An automatic shrinking mold for prefabricating pipe sections in an underground pipe gallery, comprising a bottom mold, an outer mold assembly, an inner mold assembly, and an automatic shrinking component, wherein the inner mold assembly is in a "mouth"-shaped structure;

[0007] The outer mold assembly includes two sets of first outer molds and two sets of second outer molds;

[0008] The inner mold assembly includes a first inner mold, a second inner mold installed on both sides of the first inner mold, two sets of fourth inner molds, and a fourth inner mold hingedly installed between the two sets of third inner molds; the second inner mold is provided with an inner corner mold on the side facing the first inner mold, and the third inner mold is provided with an inner corner mold on the side facing the second inner mold; the first inner mold, the second inner mold, and the third inner mold are all hinged to the bottom mold;

[0009] The automatic retracting component includes a driving seat fixed at the center position of the inner mold assembly, a threaded lifting seat installed in the driving seat, a first telescopic rod hingedly installed on four sides of the threaded lifting seat, two sets of second telescopic rods and a third telescopic rod; the first telescopic rod is hinged to the first inner mold, the second telescopic rod is hinged to the second inner mold, and the third telescopic rod is hinged to the fourth inner mold.

[0010] Preferably, a connecting frame is fixed to the inner wall of the fourth inner mold, and the third telescopic rod is hinged to the connecting frame.

[0011] Preferably, a plurality of guide rails are fixedly mounted on the bottom surface of the bottom mold, and roller seats are mounted on the bottom surfaces of the first outer mold and the second outer mold, and the roller seats cooperate with the guide rails.

[0012] Preferably, water-stop rubber strips are provided on the inner walls of the first outer mold and the second outer mold.

[0013] Preferably, positioning frames are fixedly mounted on the bottom surfaces of the first outer mold and the second outer mold, and positioning pins are installed between the bottom mold and the positioning frames.

[0014] Preferably, a plurality of top frames are fixedly mounted on the upper surface of the inner mold assembly, a positioning rod is hinged on the inner wall of the top frame, and a plurality of positioning seats are fixedly connected to the upper surfaces of the first outer mold and the second outer mold, and bolts are installed between the positioning rods and the positioning seats.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model provides an automatic shrinking component to quickly prop up the inner mold, and the mold installation and disassembly does not require workers to enter the inner mold to connect the screws, which is convenient and simple, greatly improving work efficiency. The inner mold is optimized on the basis of the previous mold. The inner mold does not need to be hoisted out when the inner mold is installed and disassembled. The mold automatically shrinks and the product can be directly hoisted out, which saves the time of hoisting the inner mold, further improves work efficiency, saves work space for the workshop, and facilitates production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from above;

[0018] Figure 2 This is a front structural diagram of the present invention;

[0019] Figure 3 for Figure 1 Schematic diagram of the BB cross-section structure;

[0020] Figure 4 for Figure 1 A partial enlarged view of part A.

[0021] In the picture:

[0022] 1. Bottom mold; 2. First outer mold; 201. Second outer mold; 3. Guide rail; 4. Roller seat; 5. Positioning frame; 6. Positioning pin; 7. Inner mold assembly; 701. First inner mold; 702. Second inner mold; 703. Third inner mold; 704. Fourth inner mold; 705. Connecting frame; 8. Drive seat; 801. Threaded lifting seat; 901. First telescopic rod; 902. Second telescopic rod; 903. Third telescopic rod; 10. Water-stop rubber strip; 11. Top frame; 12. Positioning rod; 13. Positioning seat. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] Example 1: As shown in the attached Figure 1 To the attached Figure 4 As shown: The utility model provides an automatic shrinking mold for prefabricating pipe sections in an underground pipe gallery, comprising a bottom mold 1, an outer mold assembly, an inner mold assembly 7 and an automatic shrinking component, wherein the inner mold assembly 7 is a "mouth"-shaped structure;

[0025] The outer mold assembly includes two sets of first outer molds 2 and two sets of second outer molds 201;

[0026] The inner mold assembly 7 includes a first inner mold 701, a second inner mold 702 mounted on both sides of the first inner mold 701, two sets of fourth inner molds 704, and a fourth inner mold 704 hingedly mounted between two sets of third inner molds 703. The second inner mold 702 is provided with an inner corner mold on the side facing the first inner mold 701, and the third inner mold 703 is provided with an inner corner mold on the side facing the second inner mold 702. The first inner mold 701, the second inner mold 702, and the third inner mold 703 are all hingedly connected to the bottom mold 1.

[0027] The automatic retracting component includes a driving seat 8 fixed at the center position of the inner mold assembly 7, a threaded lifting seat 801 installed in the driving seat 8, a first telescopic rod 901 hingedly installed on the four sides of the threaded lifting seat 801, two sets of second telescopic rods 902 and a third telescopic rod 903; the first telescopic rod 901 is hinged to the first inner mold 701, the second telescopic rod 902 is hinged to the second inner mold 702, the third telescopic rod 903 is hinged to the fourth inner mold 704, a connecting frame 705 is fixed to the inner wall of the fourth inner mold 704, and the third telescopic rod 903 is hinged to the connecting frame 705.

[0028] A plurality of guide rails 3 are fixedly mounted on the bottom surface of the bottom mold 1 , and roller seats 4 are mounted on the bottom surfaces of the first outer mold 2 and the second outer mold 201 , which cooperate with the guide rails 3 .

[0029] Water-stopping rubber strips 10 are provided on the inner walls of the first outer mold 2 and the second outer mold 201. The water-stopping rubber strips 10 can be stably connected to the outer edge of the formed pipe segment, so that a waterproof rubber ring is formed around the pipe segment.

[0030] Positioning frames 5 are fixedly mounted on the bottom surfaces of the first outer mold 2 and the second outer mold 201 , and positioning pins 6 are installed between the bottom mold 1 and the positioning frames 5 .

[0031] The automatic shrinking mould is used for rectangular pipe jacking and pipe segment prefabrication in trenchless technology or for prefabrication and assembly of pipe segments in open-cut technology.

[0032] As can be seen from the above, the bottom mold 1 is fixed on the foundation. By controlling the automatic contraction component, the inner mold is quickly propped up, and then the outer molds on the four sides are quickly pushed to the corresponding positions through the roller seat 4 and the guide rail 3. The outer mold assembly and the bottom mold 1 are connected and fixed by the positioning frame 5 and the positioning pin 6. When removing the mold, just loosen the positioning pin 6. The outer mold opening method adopts the external sliding movement method, and the seam connection adopts the snap-on method, which is convenient and fast.

[0033] The inner mold opening method adopts an automatic core-pulling method. By controlling the driving seat 8 and multiple groups of telescopic rods, the first telescopic rod 901 contracts first to pull the first inner mold 701 to the inside. At this time, the second telescopic rods 902 on both sides work simultaneously to contract the two groups of second inner molds 702 at the same time. Finally, the third telescopic rod 903 pulls the fourth inner mold 704, and the two groups of third inner molds 703 are quickly pulled by the fourth inner mold 704; when the four groups of inner molds are all pulled, the position of the threaded lifting seat 801 changes, thereby continuing to stretch the four groups of inner molds toward the center position of the inner mold assembly to achieve stable contraction of the inner mold; this method can avoid the inner mold being blocked by the inner corner mold when shrinking. Due to the provision of the inner corner mold, it is ensured that the inner mold has good sealing performance after being expanded;

[0034] When the inner mold is opened, the threaded lifting seat 801 raises multiple sets of telescopic rods at the same time. According to the order of telescopic rod coordination opposite to the retraction step, the four sets of inner molds can be opened stably.

[0035] The mold installation and disassembly does not require workers to enter the inner mold to connect the screws, which is convenient and simple, greatly improving work efficiency. The inner mold has been optimized on the basis of the previous mold. The inner mold does not need to be hoisted out for demolding and disassembling. The mold automatically shrinks and the product can be directly hoisted out, saving the hoisting time of the inner mold, further improving work efficiency, saving work space for the workshop, and facilitating production.

[0036] Example 2: Based on Example 1, a number of top frames 11 are fixedly installed on the upper surface of the inner mold assembly 7, and a positioning rod 12 is hinged on the inner wall of the top frame 11. A number of positioning seats 13 are fixedly connected to the upper surfaces of the first outer mold 2 and the second outer mold 201, and bolts are installed between the positioning rods 12 and the positioning seats 13.

[0037] As can be seen from the above, when the outer mold is displaced to the corresponding position, the outer mold and the inner mold can be quickly locked and fixed through the positioning rod (12) and the positioning seat (13).

[0038] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

[0039] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] In the description of this specification, the reference terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0043] The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention may be combined with each other.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic shrinking mold for prefabricating pipe sections in an underground pipe gallery, characterized by: It comprises a bottom mold (1), an outer mold assembly, an inner mold assembly (7) and an automatic shrinking component, wherein the inner mold assembly (7) is in a "mouth"-shaped structure; The outer mold assembly comprises two groups of first outer molds (2) and two groups of second outer molds (201); The inner mold assembly (7) comprises a first inner mold (701), a second inner mold (702) installed on both sides of the first inner mold (701), two groups of fourth inner molds (704), and a fourth inner mold (704) hingedly installed between the two groups of third inner molds (703); the second inner mold (702) is provided with an inner corner mold on the side facing the first inner mold (701), and the third inner mold (703) is provided with an inner corner mold on the side facing the second inner mold (702); the first inner mold (701), the second inner mold (702), and the third inner mold (703) are all hingedly connected to the bottom mold (1); The automatic retracting component comprises a driving seat (8) fixed at the center position of the inner mold assembly (7), a threaded lifting seat (801) installed in the driving seat (8), a first telescopic rod (901) hingedly installed on four sides of the threaded lifting seat (801), two groups of second telescopic rods (902) and a third telescopic rod (903); the first telescopic rod (901) is hingedly connected to the first inner mold (701), the second telescopic rod (902) is hingedly connected to the second inner mold (702), and the third telescopic rod (903) is hingedly connected to the fourth inner mold (704).

2. The automatic shrinking mold for prefabricating pipe segments in an underground pipe gallery according to claim 1, characterized in that: A connecting frame (705) is fixed on the inner wall of the fourth inner mold (704), and the third telescopic rod (903) is hinged to the connecting frame (705).

3. The automatic shrinking mold for prefabricating pipe segments in an underground pipe gallery according to claim 2, characterized in that: A plurality of guide rails (3) are fixedly mounted on the bottom surface of the bottom mold (1), and roller seats (4) are mounted on the bottom surfaces of both the first outer mold (2) and the second outer mold (201), and the roller seats (4) cooperate with the guide rails (3).

4. The automatic shrinking mold for prefabricating pipe segments in an underground pipe gallery according to claim 3, characterized in that: Water-stopping rubber strips (10) are provided on the inner walls of the first outer mold (2) and the second outer mold (201).

5. The automatic shrinking mold for prefabricating pipe segments in an underground pipe gallery according to claim 1, characterized in that: Positioning frames (5) are fixedly mounted on the bottom surfaces of the first outer mold (2) and the second outer mold (201), and positioning pins (6) are mounted between the bottom mold (1) and the positioning frames (5).

6. The automatic shrinking mold for prefabricating pipe segments in an underground pipe gallery according to claim 1, characterized in that: A plurality of top frames (11) are fixedly mounted on the upper surface of the inner mold assembly (7), a positioning rod (12) is hingedly mounted on the inner wall of the top frame (11), and a plurality of positioning seats (13) are fixedly connected to the upper surfaces of the first outer mold (2) and the second outer mold (201), and bolts are mounted between the positioning rods (12) and the positioning seats (13).

Images