Construction device for penetrating steel pipe into nodular cast iron pipe

Abstract

The utility model relates to the field of pipeline construction, and discloses a construction device for penetrating a steel pipe into a nodular cast iron pipe, which comprises a first base plate and a second base plate, the two ends of the connecting insertion plate are inserted into the horizontal grooves of the first base plate and the second base plate respectively; the first side edge supporting plate and the second side edge supporting plate are hinged to the side walls, away from the connecting inserting plate, of the first base plate and the second base plate respectively; the lower portion of the first base plate, the lower portion of the second base plate, the lower portion of the first side supporting plate and the lower portion of the second side supporting plate are each provided with a moving wheel set. The distance between the first base plate and the second base plate is adjusted to adapt to the size of a steel pipe in a nodular cast iron pipe, so that the lower part of the steel pipe is jacked up by the main body structure, the first side supporting plate and the second side supporting plate during pipe penetrating construction; damage to the steel pipe and the nodular cast iron pipe caused by direct friction between the steel pipe and the inner wall of the nodular cast iron pipe is avoided

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction, specifically to a construction device for inserting steel pipes inside ductile iron pipes. Background Technology

[0002] In municipal engineering, oil and gas transportation, and water supply and drainage systems, the technique of inserting steel pipes inside ductile iron pipes is commonly used for the repair, reinforcement, or functional upgrade of old pipelines. For example, inserting a steel pipe inside an existing ductile iron pipe can improve its pressure resistance, corrosion resistance, or facilitate the transport of different media. When inserting existing steel pipes, they are typically driven by an external traction device. Because steel pipes are made of metal and are relatively heavy, strong friction is generated during insertion, increasing the resistance load on the traction device and resulting in low insertion efficiency. Furthermore, the friction between the ductile iron pipe and the steel pipe can easily cause wear or deformation, damaging both and affecting the construction quality. Utility Model Content

[0003] This invention provides a construction device for inserting steel pipes inside ductile iron pipes, in order to solve the problems in the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A construction device for inserting a steel pipe inside a ductile iron pipe, wherein the steel pipe moves inside the ductile iron pipe under the drive of an external traction drive device, comprising:

[0006] Both the first base plate and the second base plate have horizontal grooves.

[0007] The connecting plate is inserted into the horizontal grooves of the first base plate and the second base plate at both ends, respectively.

[0008] The first side support plate and the second side support plate are respectively hinged to the side wall of the first base plate and the second base plate away from the connecting insert plate;

[0009] Each of the first base plate, the second base plate, the first side support plate, and the second side support plate is provided with a set of movable wheels at its lower part. The set of movable wheels includes at least two movable wheels, which are arranged along the travel direction of the steel pipe.

[0010] Specifically, both the first base plate and the second base plate have T-shaped grooves on their upper surfaces, which penetrate the upper walls of the first base plate and the second base plate. The fastening knob is also vertically installed in the T-shaped groove and has a T-shaped longitudinal section. The lower part of the fastening knob is screwed into the connecting plate, and the upper part abuts against the horizontal surface of the T-shaped groove to lock the relative position of the connecting plate with the first base plate and the second base plate.

[0011] Specifically, two sets of the T-slots and fastening knobs are provided on the first base plate and the second base plate respectively.

[0012] In particular, the upper surfaces of the first and second side support plates are also provided with anti-slip pads.

[0013] Specifically, each of the lower surfaces of the first base plate and the second base plate is provided with a reinforcing sleeve, and the two ends of the reinforcing rod are respectively inserted into the two reinforcing sleeves, with the axial direction of the reinforcing rod parallel to the axial direction of the connecting plate.

[0014] Furthermore, the middle part of the reinforcing rod is connected to the middle part of the connecting plate by a vertical connecting rod.

[0015] Furthermore, two sets of the reinforcing sleeves and reinforcing rods are provided on the lower surfaces of the first base plate and the second base plate, respectively.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] This invention utilizes a first base plate and a second base plate to form the main structure of the device. A first side support plate and a second side support plate are hinged to both sides of the first and second base plates respectively, to support the steel pipe inside the ductile iron pipe when the device is placed inside. The distance between the first and second base plates is adjusted to accommodate the dimensions of the steel pipe inside the ductile iron pipe. This ensures that the steel pipe is supported by the main structure, the first side support plate, and the second side support plate during pipe insertion, preventing direct friction between the steel pipe and the inner wall of the ductile iron pipe, thus avoiding damage to both the steel pipe and the ductile iron pipe. Furthermore, the use of rolling wheels located at the bottom of the first base plate, the second base plate, the first side support plate, and the second side support plate reduces friction between the steel pipe and the inner wall of the ductile iron pipe during insertion, preventing wear or deformation of the ductile iron pipe due to friction with the steel pipe. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model from an upward angle.

[0021] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] First base plate—1; Second base plate—2; Horizontal groove—3; Connecting insert plate—4; First side support plate—5; Second side support plate—6; Moving wheel—7; T-slot—8; Fastening knob—9; Anti-slip pad—10; Reinforcing sleeve—11; Reinforcing rod—12; Vertical connecting rod—13. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0025] like Figure 1 and Figure 4 As shown, a construction device for inserting a steel pipe inside a ductile iron pipe, wherein the steel pipe moves inside the ductile iron pipe under the drive of an external traction drive device, comprising:

[0026] Both the first base plate 1 and the second base plate 2 have horizontal grooves 3.

[0027] Connecting plate 4, with both ends inserted into the horizontal grooves 3 of the first base plate 1 and the second base plate 2 respectively;

[0028] The first side support plate 5 and the second side support plate 6 are respectively hinged to the side walls of the first base plate 1 and the second base plate 2 away from the connecting insert plate 4.

[0029] The first base plate 1, the second base plate 2, the first side support plate 5 and the second side support plate 6 are each provided with a set of movable wheels. The set of movable wheels includes at least two movable wheels 7, which are arranged along the travel direction of the steel pipe.

[0030] In this invention, the first base plate 1 and the second base plate 2 form the main structure through a horizontal groove 3 and a connecting plate 4 slidably disposed within the horizontal groove 3. A first side support plate 5 and a second side support plate 6 are respectively hinged to both sides of the main structure. This allows the invention to be placed circumferentially inside the ductile iron pipe during pipe-laying construction. One invention is placed below the front end and one below the rear end of the steel pipe for placement. The hinged arrangement of the first side support plate 5 and the second side support plate 6 allows their angles to be adaptively adjusted according to the diameter of the steel pipe. Each of the first base plate 1, the second base plate 2, the first side support plate 5, and the second side support plate 6 has a movable wheel 7 at its lower part to convert the static friction between the steel pipe and the ductile iron pipe during pipe-laying construction into sliding friction, thereby reducing friction and lowering the static load on the steel pipe when driven by an external traction device.

[0031] In a preferred embodiment, both the first base plate 1 and the second base plate 2 are provided with T-shaped grooves 8 on their upper surfaces, the T-shaped grooves 8 penetrating the upper walls of the first base plate 1 and the second base plate 2; it also includes a fastening knob 9 vertically disposed in the T-shaped groove 8, the fastening knob 9 having a T-shaped longitudinal section, the lower part of the fastening knob 9 being screwed into a screw hole on the connecting insert plate 4, and the upper part abutting against the transverse surface of the T-shaped groove 8, so as to lock the relative position of the connecting insert plate 4 with the first base plate 1 and the second base plate 2.

[0032] This embodiment provides a structure for fixing the relative positions of the connecting plate 4 with the first base plate 1 and the second base plate 2. Specifically, as follows: Figure 1 As shown, both the first base plate 1 and the second base plate 2 have T-slots 8 on their upper surfaces. The T-slots 8 penetrate the upper walls of both base plates, allowing the fastening knob 9 to be screwed into the horizontal grooves 3 on both base plates. Simultaneously, when the fastening knob 9 is screwed in, the horizontal surface of the T-slot 8, in conjunction with the upper large-diameter position of the fastening knob, provides a limiting effect, preventing over-screwing and damage to the connecting plate 14 when it is screwed into the screw hole. Furthermore, screwing the fastening knob 9 into the first base plate 1 and the second base plate 2 along the T-slot 8 allows for a certain range of motion along the axis of the T-slot 8, enabling positional adjustments during the adjustment of the distance between the first base plate 1 and the second base plate 2. It should be noted that the connecting plate 4 installed in the horizontal groove 3 on the first base plate 1 and the second base plate 2 is slidable, that is, the connecting plate 4 can slide in the horizontal groove 3, thereby achieving the purpose of adjusting the distance between the first base plate 1 and the second base plate 2.

[0033] As a further embodiment, two sets of the T-slots 8 and fastening knobs 9 are provided on the first base plate 1 and the second base plate 2 respectively.

[0034] In this embodiment, as Figure 1 As shown, by setting two sets of T-slots 8 and fastening knobs 9 respectively, the overall stability of the fastening knobs 9 when screwed into the connecting plate 4 is effectively increased.

[0035] In a preferred embodiment, the upper surfaces of the first side support plate 5 and the second side support plate 6 are also provided with anti-slip pads 10.

[0036] In this embodiment, as Figure 1 and Figure 2 As shown, by setting anti-slip pads 10 on the upper surfaces of the first side support plate 5 and the second side support plate 6, the stability of the steel pipe when placed on the first side support plate 5 and the second side support plate 6 is effectively improved, and the problem of steel pipe slippage is avoided.

[0037] In a preferred embodiment, a reinforcing sleeve 11 is provided on the lower surface of the first base plate 1 and the second base plate 2, and the two ends of the reinforcing rod 12 are respectively inserted into the two reinforcing sleeves 11. The axial direction of the reinforcing rod 12 is parallel to the axial direction of the connecting plate 4.

[0038] In this embodiment, as Figure 3 As shown, reinforcing sleeves 11 are provided on the lower surfaces of the first base plate 1 and the second base plate 2, and reinforcing rods 12 are inserted into the reinforcing sleeves 10 to effectively increase the overall strength of the present invention and prevent vertical deformation of the connecting plate 4, the first base plate 1 and the second base plate 2.

[0039] As a further embodiment, the middle part of the reinforcing rod 12 is connected to the middle part of the connecting plate 4 by a vertical connecting rod 13.

[0040] In this embodiment, as Figure 3 As shown, by connecting the reinforcing rod 12 and the middle part of the connecting plate 4 with a vertical connecting rod 13, it is convenient to operate the connecting plate 4 and the reinforcing rod 12 synchronously, so that the insertion or withdrawal of the connecting plate 4 and the reinforcing rod 12 can be completed in one go.

[0041] As a further embodiment, two sets of the reinforcing sleeve 11 and the reinforcing rod 12 are provided on the lower surfaces of the first base plate 1 and the second base plate 2.

[0042] In this embodiment, two sets of reinforcing sleeves 11 and reinforcing rods 12 are provided on the lower surfaces of the first base plate 1 and the second base plate 2, thereby further enhancing their overall strength.

[0043] In addition, a horizontal guide rod can be provided on the front and rear end walls of the connecting plate 4, and a guide groove matching the guide rod can be provided at the corresponding position on the side wall of the horizontal groove 3, so as to limit the orientation of the connecting plate 4 during the sliding process.

[0044] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0045] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A construction device for threading a steel pipe inside a ductile cast iron pipe, said steel pipe being moved inside the ductile cast iron pipe under the drive of an external traction drive device, characterized in that, include: Both the first base plate (1) and the second base plate (2) have horizontal grooves (3); Connecting plate (4), with both ends inserted into the horizontal grooves (3) of the first base plate (1) and the second base plate (2) respectively; The first side support plate (5) and the second side support plate (6) are respectively hinged to the side walls of the first base plate (1) and the second base plate (2) away from the connecting insert plate (4); The first base plate (1), the second base plate (2), the first side support plate (5) and the second side support plate (6) are each provided with a set of movable wheels. The set of movable wheels includes at least two movable wheels (7), which are arranged along the travel direction of the steel pipe.

2. A construction device for penetrating a steel pipe inside a ductile cast iron pipe according to claim 1, characterized in that, The upper surfaces of the first base plate (1) and the second base plate (2) are provided with T-shaped grooves (8), which penetrate the upper walls of the first base plate (1) and the second base plate (2); it also includes a fastening knob (9) vertically arranged in the T-shaped groove (8), the longitudinal section of the fastening knob (9) is also T-shaped, the lower part of the fastening knob (9) is screwed into the screw hole on the connecting insert plate (4), and the upper part abuts against the horizontal surface of the T-shaped groove (8) to lock the relative position of the connecting insert plate (4) with the first base plate (1) and the second base plate (2).

3. A construction device for penetrating a steel pipe inside a ductile cast iron pipe according to claim 2, characterized in that, Two sets of the T-slot (8) and fastening knob (9) are provided on the first base plate (1) and the second base plate (2).

4. A construction device for penetrating a steel pipe inside a ductile cast iron pipe according to claim 1, characterized in that, The upper surfaces of the first side support plate (5) and the second side support plate (6) are also provided with anti-slip pads (10).

5. A construction device for penetrating a steel pipe inside a ductile cast iron pipe according to claim 1, wherein The lower surfaces of the first base plate (1) and the second base plate (2) are each provided with a reinforcing sleeve (11). The two ends of the reinforcing rod (12) are respectively inserted into the two reinforcing sleeves (11), and the axial direction of the reinforcing rod (12) is parallel to the axial direction of the connecting plate (4).

6. A construction device for penetrating a steel pipe inside a ductile cast iron pipe according to claim 5, wherein The middle part of the reinforcing rod (12) is connected to the middle part of the connecting plate (4) by a vertical connecting rod (13).

7. A construction device for inserting a steel pipe inside a ductile iron pipe as described in claim 5, characterized in that, The reinforcing sleeve (11) and reinforcing rod (12) are provided in two sets on the lower surface of the first base plate (1) and the second base plate (2).

Images