Socket type nodular cast iron pipe butt joint device

Abstract

The utility model provides a socket type nodular cast iron pipe butt joint device which comprises a central pipe, a guide pipe is fixedly arranged on the side wall of the central pipe, and the axis of the guide pipe is perpendicular to the axis of an axis pipe; a support bar; the supporting rods are fixedly provided with guiding columns matched with the guiding pipes, the guiding columns are installed on the inner sides of the guiding pipes, one ends of the supporting rods are bent in the axis direction of the center pipe to form inclined rods, the number of the supporting rods is multiple, and the multiple supporting rods are evenly arranged in the circumferential direction of the center pipe. The driving assembly is used for driving the support to move in the direction away from the center rod. The pipeline butt joint device has the advantages that the pipeline butt joint device is arranged on the inner side of a laid pipeline to be in butt joint through the movable supporting rod, under the guiding effect of the inclined rod, the pipeline to be in butt joint can be conveniently aligned and inserted into the inner side of a bell and spigot joint of an adjacent pipeline, the movable supporting rod is suitable for butt joint operation of pipelines with different inner diameters, and the application range of the pipeline butt joint device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering construction, and particularly relates to a socket type ductile iron pipe butt joint device. Background Art

[0002] During the construction of water conservancy projects, it is often necessary to lay socket type ductile iron pipes in the excavated foundation pits. During the laying process, the pipes need to be inserted into the inner side of the socket end of the adjacent pipes to complete the butt joint. The current operation methods have the following problems: First, it is inserted by manual alignment. The work efficiency of this manual alignment is low, and the alignment degree cannot be guaranteed, and the problem of knocking the pipes often occurs. Second, an external tapered pipe is used for guiding insertion. During the use of this operation method, the sight is blocked by the tapered pipe, and the insertion process cannot be directly observed, and the tapered pipe cannot be applied to the butt joint of pipes with different inner diameters, resulting in limited use range of the device. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a socket type ductile iron pipe butt joint device in order to solve at least one of the above partial technical problems.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A socket type ductile iron pipe butt joint device includes:

[0006] A central pipe, on the side wall of which a guiding pipe is fixedly arranged, and the axis of the guiding pipe is perpendicular to the axis of the central pipe;

[0007] Support rods; on the support rods, guiding columns matching the guiding pipes are fixedly arranged, the guiding columns are installed inside the guiding pipes, one end of each support rod is bent towards the axis direction of the central pipe to form an inclined rod, and the number of the support rods is multiple, and the multiple support rods are evenly arranged circumferentially along the central pipe;

[0008] A driving component, which is used to drive the support to move away from the central rod.

[0009] Furthermore, an anti-slip rubber pad is arranged at one end of the support rod away from the inclined rod, the anti-slip rubber pad is located on the end face of the support rod away from the axis of the central pipe, and the end face of the anti-slip rubber pad away from the axis of the central pipe is an arc surface.

[0010] Furthermore, a roller I is arranged on the end face of the inclined rod away from the axis of the central pipe, and the outer side wall of the roller I protrudes from the end face of the inclined rod away from the axis of the central pipe;

[0011] One end of the support rod near the inclined rod is provided with a second roller, the second roller is located on the end face of the support rod away from the axis of the central tube, and the outer side wall of the second roller protrudes from the end face of the support rod away from the axis of the central tube.

[0012] Furthermore, a tension spring is provided between the central tube and the support rod. One end of the tension spring is fixedly connected to the support rod, and the other end is fixedly connected to the central tube. The tension spring is located outside the guide tube.

[0013] Furthermore, the drive assembly includes a drive tube installed inside the central tube. The outer diameter of the drive tube matches the inner diameter of the central tube. A first drive plate is fixedly provided on the outer side wall of the drive tube. A second drive plate corresponding to the first drive plate is fixedly provided on the end face of the support rod near the central tube. The end face of the first drive plate near the second drive plate is an inclined surface one, and the end face of the second drive plate near the first drive plate is an inclined surface two. The inclined surface one is in contact with the inclined surface two;

[0014] The drive tube is movably connected to the central tube along the axis of the central tube.

[0015] Furthermore, a strip-shaped through hole corresponding to the first drive plate is formed on the outer side wall of the central tube, and the first drive plate is located inside the strip-shaped through hole.

[0016] Furthermore, internal threads are formed on the inner side of one end of the central tube near the inclined rod. A screw rod is provided inside the central tube. The screw rod is threadedly connected to the central tube. A cylinder is fixedly provided at one end of the screw rod. The diameter of the cylinder is smaller than the diameter of the screw rod. The diameter of the cylinder matches the inner diameter of the drive tube. The cylinder is located inside the drive tube. A baffle is fixedly provided at one end of the cylinder away from the screw rod. The outer diameter of the baffle is larger than the diameter of the cylinder. The baffle limits the drive tube;

[0017] A jack perpendicular to the axis of the screw rod is formed on the screw rod.

[0018] Furthermore, the distance between one end of the inclined surface one near the inclined rod and the axis of the central tube is greater than the distance between the other end and the axis of the central tube. The internal threads of the central tube are positive internal threads. A reverse internal thread hole is formed at one end of the screw rod away from the central tube. A rotating rod is correspondingly provided on the screw rod. A stud matching the reverse internal thread hole is provided on the rotating rod.

[0019] Furthermore, a disc is provided on the rotating rod. Support columns are fixedly provided on the outer side of the disc. The axis of the support column is parallel to the axis of the rotating rod. The diameter of the disc is smaller than the inner diameter of the pipeline to be butt-jointed.

[0020] Further, a conical tube corresponding to the reverse internal thread hole is fixedly provided at one end of the screw rod away from the cylinder, and the inner diameter of the end of the conical tube away from the screw rod is larger than the inner diameter of the end of the conical tube adjacent to the screw rod;

[0021] A handle is fixedly provided on the rotating rod.

[0022] Compared with the prior art, the socket-type ductile iron pipe docking device of the present invention has the following beneficial effects:

[0023] For the socket-type ductile iron pipe docking device of the present invention, the device is arranged inside the laid pipeline to be docked through the movable support rod. Under the guiding action of the inclined rod, it is convenient for the pipeline to be docked to be aligned and inserted into the socket inside the adjacent pipeline, and the movable support rod is applicable to the docking operation of pipelines with different inner diameters, broadening the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0025] In the drawings:

[0026] Figure 1 is a schematic three-dimensional structure diagram of the device according to an embodiment of the present invention;

[0027] Figure 2 is a schematic three-dimensional structure diagram of the support rod according to an embodiment of the present invention;

[0028] Figure 3 is a schematic three-dimensional structure diagram of the central pipe according to an embodiment of the present invention;

[0029] Figure 4 is a schematic three-dimensional structure diagram of the screw rod according to an embodiment of the present invention;

[0030] Figure 5 is a schematic three-dimensional structure diagram of the drive pipe according to an embodiment of the present invention;

[0031] Figure 6 is a schematic three-dimensional structure diagram of the rotating rod according to an embodiment of the present invention;

[0032] Figure 7 is a schematic cross-sectional structure diagram of the device in the use state at the drive plate according to an embodiment of the present invention;

[0033] Figure 8 is a schematic cross-sectional structure diagram of the device in the use state according to an embodiment of the present invention;

[0034] Figure 9For the embodiment of the present utility model Figure 8 Schematic diagram of the structure at position A in

[0035] Explanation of reference numerals:

[0036] 1, central tube; 2, support rod; 3, screw; 4, drive tube; 5, rotating rod; 6, pipeline to be docked; 101, guide tube; 102, strip-shaped through hole; 201, inclined rod; 202, rubber pad; 203, roller one; 204, drive plate two; 205, guide post; 206, tension spring; 207, roller two; 301, jack; 302, tapered tube; 303, cylinder; 304, baffle; 401, drive plate one; 501, handle; 502, support post; 503, stud; 504, disc. Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0041] As Figures 1 to 9As shown, a socket type ductile iron pipe docking device includes:

[0042] A central pipe 1, on the side wall of the central pipe 1, a guiding pipe 101 is fixedly installed, and the axis of the guiding pipe 101 is perpendicular to the axis of the axis pipe; A support rod 2; On the support rod 2, a guiding column 205 matching the guiding pipe 101 is fixedly installed, the guiding column 205 is installed inside the guiding pipe 101, one end of the support rod 2 is bent towards the axis direction of the central pipe 1 to form an inclined rod 201, and the number of the support rods 2 is multiple, and the multiple support rods 2 are evenly arranged circumferentially along the central pipe 1; A driving component, which is used to drive the support to move away from the central rod.

[0043] An anti-slip rubber pad 202 is provided at one end of the support rod 2 away from the inclined rod 201, the anti-slip rubber pad 202 is located on the end face of the support rod 2 away from the axis of the central pipe 1, and the end face of the anti-slip rubber pad 202 away from the axis of the central pipe 1 is an arc surface, and the anti-slip rubber pad 202 increases the friction between the support rod 2 and the inner side wall of the pipe 6 to be docked.

[0044] A first roller 203 is provided on the end face of the inclined rod 201 away from the axis of the central pipe 1, and the outer side wall of the first roller 203 protrudes from the end face of the inclined rod 201 away from the axis of the central pipe 1; A second roller 207 is provided at one end of the support rod 2 close to the inclined rod 201, the second roller 207 is located on the end face of the support rod 2 away from the axis of the central pipe 1, and the outer side wall of the second roller 207 protrudes from the end face of the support rod 2 away from the axis of the central pipe 1. The settings of the first roller 203 and the second roller 207 can prevent the inner side of the pipe 6 to be docked from being scratched.

[0045] A tension spring 206 is provided between the central pipe 1 and the support rod 2, one end of the tension spring 206 is fixedly connected to the support rod 2, the other end is fixedly connected to the central pipe 1, and the tension spring 206 is located outside the guiding pipe 101, and the tension spring 206 plays a role in supporting and resetting.

[0046] The driving assembly includes a driving tube 4 which is installed inside the central tube 1. The outer diameter of the driving tube 4 matches the inner diameter of the central tube 1. A first driving plate 401 is fixedly arranged on the outer side wall of the driving tube 4. A second driving plate 204 corresponding to the first driving plate 401 is fixedly arranged on the end surface of the support rod 2 close to the central tube 1. The end surface of the first driving plate 401 close to the second driving plate 204 is a first inclined surface, and the end surface of the second driving plate 204 close to the first driving plate 401 is a second inclined surface. The first inclined surface is in contact with the second inclined surface. The driving tube 4 is movably connected to the central tube 1 along the axial direction of the central tube 1. A strip-shaped through hole 102 corresponding to the first driving plate 401 is formed in the outer side wall of the central tube 1. The first driving plate 401 is located inside the strip-shaped through hole 102. The first driving plate 401 is installed inside the strip-shaped through hole 102, which can prevent the driving tube 4 from rotating relative to the central tube 1. The driving assembly can also be a cylinder, a hydraulic cylinder, etc. to drive the support rod 2 to move away from the central tube 1. When the driving assembly is a cylinder, the housing of the cylinder is fixedly connected to the central tube 1, and the output shaft of the cylinder is fixedly connected to the support rod 2.

[0047] In some embodiments, internal threads are formed inside one end of the central tube 1 close to the inclined rod 201. A screw rod 3 is arranged inside the central tube 1, and the screw rod 3 is threadedly connected to the central tube 1. A cylinder 303 is fixedly arranged at one end of the screw rod 3. The diameter of the cylinder 303 is smaller than the diameter of the screw rod 3. The diameter of the cylinder 303 matches the inner diameter of the driving tube 4. The cylinder 303 is located inside the driving tube 4. A baffle 304 is fixedly arranged at one end of the cylinder 303 away from the screw rod 3. The outer diameter of the baffle 304 is larger than the diameter of the cylinder 303. The baffle 304 limits the driving tube 4. A jack 301 perpendicular to the axis of the screw rod 3 is formed in the screw rod 3. The jack 301 facilitates inserting a crowbar to rotate the rotating rod 5. The distance between one end of the first inclined surface close to the inclined rod 201 and the axis of the central tube 1 is greater than the distance between the other end and the axis of the central tube 1. The internal threads of the central tube 1 are positive internal threads. An anti-internal thread hole is formed at one end of the screw rod 3 away from the central tube 1. A rotating rod 5 is correspondingly arranged on the screw rod 3. A stud 503 matching the anti-internal thread hole is arranged on the rotating rod 5. A disc 504 is arranged on the rotating rod 5. A support column 502 is fixedly arranged on the outer side of the disc 504. The axis of the support column 502 is parallel to the axis of the rotating rod 5. The diameter of the disc 504 is smaller than the inner diameter of the pipeline 6 to be docked. A conical tube 302 corresponding to the anti-internal thread hole is fixedly arranged at one end of the screw rod 3 away from the cylinder 303. The inner diameter of one end of the conical tube 302 away from the screw rod 3 is larger than the inner diameter of one end of the conical tube 302 close to the screw rod 3. The designs of the conical tube 302 and the disc 504 facilitate aligning the stud 503 with the anti-internal thread hole. A handle 501 is fixedly arranged on the rotating rod 5. The handle 501 facilitates rotating the rotating rod 5.

[0048] In some other embodiments, a cylinder, an electric cylinder, or a hydraulic cylinder is used to drive the driving pipe 4 to move, thereby starting the movement of the support rod 2 to tightly abut against the inner wall of the pipeline 6 to be butt-jointed.

[0049] Working process:

[0050] Place the device inside the socket end of the pipeline 6 to be butt-jointed that has been laid. Rotate the screw 3 forward to drive the driving pipe 4 and the first driving plate 401 to move away from the inclined rod 201. Under the fitting action of the first inclined surface of the first driving plate 401 and the second inclined surface of the second driving plate 204, the support rod 2 moves away from the central pipe 1, and the anti-slip rubber pad 202 tightly abuts against the inner wall of the socket end of the pipeline 6 to be butt-jointed that has been laid.

[0051] Use a lifting tool to hoist the pipeline 6 to be butt-jointed to the designated position, align the pipeline 6 to be butt-jointed with the inclined rod 201 and then move it towards the pipeline 6 to be butt-jointed that has been laid. The inclined rod 201 plays a guiding role. Then, insert the pipeline 6 to be butt-jointed into the inner side of the socket end of the pipeline 6 to be butt-jointed that has been laid. When disassembling the device after completion of the butt joint, insert it into the inner side of the pipeline 6 that has just been laid. Then, under the guiding action of the disc 504 and the tapered pipe 302, the stud 503 is threadedly connected to the reverse internal thread hole. Rotate the rotating rod 5 in the reverse direction to drive the screw 3 to rotate in the reverse direction. The screw 3 drives the driving pipe 4 and the first driving plate 401 to move towards the inclined rod 201. Under the pulling force of the tension spring 206, the support rod 2 moves towards the central pipe 1. At this time, the device can be moved to the socket of the pipeline 6 that has just been laid for the next pipeline butt-joint operation.

[0052] The device is arranged inside the pipeline 6 to be butt-jointed that has been laid through the movable support rod 2. Under the guiding action of the inclined rod 201, it is convenient for the pipeline to be butt-jointed to be aligned and inserted into the inner side of the socket of the adjacent pipeline. Moreover, the movable support rod 2 is applicable to the butt-joint operation of pipelines with different inner diameters, broadening the application range of the device.

[0053] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A socket type ductile iron pipe butt joint device, characterized in that, Comprising: A central tube (1), on the side wall of the central tube (1), a guide tube (101) is fixedly arranged, and the axis of the guide tube (101) is perpendicular to the axis of the axis tube; A support rod (2); on the support rod (2), a guide post (205) matching the guide tube (101) is fixedly arranged, the guide post (205) is installed inside the guide tube (101), one end of the support rod (2) is bent towards the axis direction of the central tube (1) to form an inclined rod (201), the number of the support rods (2) is multiple, and the multiple support rods (2) are circumferentially and uniformly arranged along the central tube (1); A driving assembly, which is used to drive the support to move away from the central rod.

2. The butt joint device for socket and spigot ductile iron pipes according to claim 1, characterized in that: At the end of the support rod (2) far from the inclined rod (201), an anti-slip rubber pad (202) is provided, the anti-slip rubber pad (202) is located on the end face of the support rod (2) far from the axis of the central tube (1), and the end face of the anti-slip rubber pad (202) far from the axis of the central tube (1) is an arc surface.

3. The butt joint device for socket and spigot ductile iron pipes according to claim 1, characterized in that: On the end face of the inclined rod (201) far from the axis of the central tube (1), a first roller (203) is provided, and the outer side wall of the first roller (203) protrudes from the end face of the inclined rod (201) far from the axis of the central tube (1); At the end of the support rod (2) close to the inclined rod (201), a second roller (207) is provided, the second roller (207) is located on the end face of the support rod (2) far from the axis of the central tube (1), and the outer side wall of the second roller (207) protrudes from the end face of the support rod (2) far from the axis of the central tube (1).

4. The socket and spigot ductile iron pipe butt joint device according to claim 1, characterized in that: Between the central tube (1) and the support rod (2), a tension spring (206) is provided, one end of the tension spring (206) is fixedly connected to the support rod (2), the other end is fixedly connected to the central tube (1), and the tension spring (206) is located outside the guide tube (101).

5. A socket and spigot ductile iron pipe butt joint device according to claim 1, characterized in that: The driving assembly includes a driving tube (4), the driving tube (4) is installed inside the central tube (1), the outer diameter of the driving tube (4) matches the inner diameter of the central tube (1), on the outer side wall of the driving tube (4), a first driving plate (401) is fixedly arranged, on the end face of the support rod (2) close to the central tube (1), a second driving plate (204) corresponding to the first driving plate (401) is fixedly arranged, the end face of the first driving plate (401) close to the second driving plate (204) is a first inclined surface, the end face of the second driving plate (204) close to the first driving plate (401) is a second inclined surface, and the first inclined surface is in contact with the second inclined surface; The driving tube (4) is movably connected to the central tube (1) along the axis direction of the central tube (1).

6. The socket and spigot ductile iron pipe butt joint device according to claim 5, characterized in that: On the outer side wall of the central tube (1), a strip-shaped through hole (102) corresponding to the first driving plate (401) is opened, and the first driving plate (401) is located inside the strip-shaped through hole (102).

7. A socket-type ductile iron pipe butt joint device according to claim 5, characterized in that: An internal thread is provided on the inner side of one end of the central tube (1) adjacent to the inclined rod (201). A screw rod (3) is arranged inside the central tube (1), and the screw rod (3) is in threaded connection with the central tube (1). A cylinder (303) is fixedly arranged at one end of the screw rod (3). The diameter of the cylinder (303) is smaller than the diameter of the screw rod (3). The diameter of the cylinder (303) matches the inner diameter of the drive tube (4). The cylinder (303) is located inside the drive tube (4). A baffle (304) is fixedly arranged at the end of the cylinder (303) away from the screw rod (3). The outer diameter of the baffle (304) is larger than the diameter of the cylinder (303). The baffle (304) limits the drive tube (4). A jack (301) perpendicular to the axis of the screw rod (3) is provided on the screw rod (3).

8. A socket type ductile iron pipe butt joint device according to claim 7, characterized in that: The distance between one end of the first inclined surface adjacent to the inclined rod (201) and the axis of the central tube (1) is greater than the distance between the other end and the axis of the central tube (1). The internal thread of the central tube (1) is a positive internal thread. A reverse internal thread hole is provided at the end of the screw rod (3) away from the central tube (1). A rotating rod (5) is correspondingly arranged on the screw rod (3). A stud (503) matching the reverse internal thread hole is provided on the rotating rod (5).

9. The butt joint device for socket and spigot ductile iron pipes according to claim 8, characterized in that: A disc (504) is provided on the rotating rod (5). Support columns (502) are fixedly arranged on the outer side of the disc (504). The axis of the support column (502) is parallel to the axis of the rotating rod (5). The diameter of the disc (504) is smaller than the inner diameter of the pipeline to be butt-jointed (6).

10. A socket and spigot ductile iron pipe butt joint device according to claim 8, characterized in that: A conical tube (302) corresponding to the reverse internal thread hole is fixedly arranged at the end of the screw rod (3) away from the cylinder (303). The inner diameter of the end of the conical tube (302) away from the screw rod (3) is larger than the inner diameter of the end of the conical tube (302) adjacent to the screw rod (3). A handle (501) is fixedly arranged on the rotating rod (5).

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