Pipeline dredger

Abstract

An outer rod piece is sleeved on the outer wall of an inner rod piece through a spring buckle, a lower limiting baffle ring is arranged on the outer edge of the bottom end of the outer rod piece, an outer rod piece external thread layer is arranged on the outer wall of the outer rod piece on the upper portion of the lower limiting baffle ring, and an outer rod piece internal thread limiting ring is sleeved on the outer rod piece external thread layer. An upper rubber ring is sleeved on the outer wall of the outer rod piece between the inner thread limiting ring of the outer rod piece and the lower limiting baffle ring, dredging operation can be carried out on a large-pipe-diameter pipeline, dredging operation can also be carried out on a small-pipe-diameter pipeline, the two rod pieces can be used in a matched and inserted mode according to different pipe diameters through sliding adjustment, and the pipeline dredging device is dual-purpose, efficient and convenient to use.

Description

Technical Field

[0001] The utility model relates to a pipeline dredging device for dredging various pipelines such as sewers, floor drains, squat toilets, sitting toilets, etc. Background Art

[0002] The utility model patent with the authorization announcement of CN204530894 has the following improvements during use: First, the conventional pipe dredger uses screws to flexibly connect the soft rubber ring clamped between the baffles with the bottom of the support rod at the lower end of the support rod. After installation, it can only dredge pipes with one inner diameter. If you need to dredge pipes with different inner diameters, you need to buy multiple models of products. Secondly, the conventional dredger uses a bottom fixed baffle and an upper movable baffle to fix the soft rubber ring. The inner side of the soft rubber ring is set on the outer side of the screw between the bottom fixed baffle and the upper movable baffle. Because this product needs to be pulled up quickly to dredge the pipe during operation, it is found during long-term use that the screw bolt head exposed at the bottom of the whole product will rust due to long-term contact with water, resulting in the soft rubber ring being easily separated from the bottom fixed baffle after being subjected to downward pressure by the soft rubber ring when the product is pulled up quickly, resulting in damage to the product. Thirdly, when replacing the rubber ring of this product, the screws need to be removed, then the upper movable baffle is removed, and finally the rubber ring is removed for replacement. The installation and uninstallation methods are relatively troublesome. In addition, when the rubber ring is mounted on the outer wall of the screw, during long-term use, with multiple pulling operations, the outer wall of the screw will cause wear and damage to the inner diameter of the rubber ring at the mounting position, resulting in reduced sealing and reduced product service life.

[0003] Therefore, a pipe dredger with a simple structure, easy operation, multi-purpose, wide range of use, stable banana ring installation, not easy to detach and wear and damage, obvious overall sealing effect, not easy to slip, long service life, and easy disassembly and maintenance is provided, which has broad market prospects. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a pipe dredger with a simple structure, easy operation, multi-purpose, wide range of use, stable banana ring installation, not easy to separate and wear and damage, obvious overall sealing effect, not easy to slip, long service life, and easy disassembly and maintenance, which is used to overcome the defects in the prior art.

[0005] The technical solution of the utility model is achieved as follows: a pipe dredger comprises an inner rod, an outer wall of the inner rod at an upper position at the bottom end is fixedly mounted with an upper limit retaining ring of the inner rod, an outer wall of the inner rod below the upper limit retaining ring is sleeved with a lower rubber ring, a bottom inner cavity of the inner rod is threadedly mounted with a bottom blocking piece matching the bottom surface of the lower rubber ring, an outer wall of the inner rod is sleeved with an outer rod through a spring buckle, a lower limit retaining ring is arranged on the outer edge of the bottom end of the outer rod, an outer threaded layer of the outer rod is arranged on the outer wall of the outer rod above the lower limit retaining ring, an outer threaded limit ring of the outer rod is sleeved on the outer threaded layer of the outer rod, and an upper rubber ring is sleeved on the outer wall of the outer rod between the outer threaded limit ring of the outer rod and the lower limit retaining ring.

[0006] Furthermore, a connecting column is arranged on the top of the bottom blocking baffle, an external thread layer of the connecting column is arranged on the connecting column, and an internal thread layer of the inner rod matching with the external thread layer is arranged on the inner wall of the bottom end of the inner rod.

[0007] Furthermore, the inner wall of the upper limit baffle ring and the outer wall of the inner rod are an integral structure, the bottom blocking baffle is a sheet-like structure, and the outer diameter of the bottom blocking baffle is not less than the inner diameter of the upper limit baffle ring.

[0008] Furthermore, the outer diameter of the lower rubber ring is not less than the outer diameter of the bottom blocking baffle, and the outer diameter of the lower rubber ring is not greater than the outer diameter of the upper rubber ring.

[0009] Furthermore, there are at least two spring buckles, which are distributed from top to bottom in the middle upper part of the inner rod, and a limiting hole matching the spring buckles is provided on the outer rod.

[0010] Furthermore, the outer rod is a tubular structure, the inner diameter of the outer rod matches the outer diameter of the inner rod, and the length of the inner rod is not less than twice the length of the outer rod.

[0011] Furthermore, a through hole matching the outer wall of the inner rod is provided at the central portion of the lower limit stop ring, the inner rod is sleeved in the through hole, and the lower limit stop ring and the outer wall of the outer rod are an integral structure.

[0012] Furthermore, the outer diameter of the lower limit stop ring is not less than the outer diameter of the inner thread limit ring of the outer rod, and the outer thread layer of the outer rod and the outer wall of the outer rod are an integral structure.

[0013] Furthermore, the inner rod is a tubular structure, and a hanging ring is installed on the top of the inner rod.

[0014] The utility model has the following positive effects:

[0015] 1. This product realizes the dual use of a dredger through the combination of inner rod and outer rod and the rubber rings respectively provided. It can be used to dredge large diameter pipes as well as small diameter pipes. The sliding adjustment of the two rods can realize the matching and plug-in use for different pipe diameters. It is efficient and convenient.

[0016] 2. This product has improved the installation and stable use of rubber rings. After installation, the rubber rings of the two rods are both sleeved on the bottom outer walls of their respective rods, and matching limiting operations are performed through different limiting structures. The outer rod is installed and disassembled by means of bottom fixed limiting and upper movable thread limiting, and the inner rod is installed and disassembled by means of upper fixed limiting and lower thread movable limiting. It is generally adapted to the installation of the rubber ring after the outer rod is sleeved, and after installation, the bottom bearing surface and acceptance strength are improved when it is quickly pulled upward. The bottom blocking baffle at the lowest end is made of plastic material as a whole. Unlike the traditional screw installation method, the rubber ring will not be separated from the bottom, which enhances the service life.

[0017] 3. When installing this product, the upper rubber ring is installed from top to bottom and then fixed in place. The lower rubber ring is installed and removed from bottom to top. The inner wall of the rubber ring is in contact with the outer wall of the respective pipe. The flat outer wall will not damage the rubber ring, which increases its service life. After installation, it has good sealing effect and strong stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the inner rod of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the outer rod of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the following description of the invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. The term "connection" only indicates the connection between devices and has no special meaning.

[0024] Specific embodiments refer to Figure 1 , 2 As shown in Figures 3 and 4, a pipe dredger comprises an inner rod 1, an outer wall of the inner rod 1 at an upper position at the bottom end is fixedly mounted with an upper limit retaining ring 9 connected to the inner rod 1, a lower rubber ring 10 is sleeved on the outer wall of the inner rod 1 below the upper limit retaining ring 9, a bottom inner cavity of the inner rod 1 is threadedly mounted with a bottom blocking piece 11 matching the bottom surface of the lower rubber ring 10, an outer wall of the inner rod 1 is sleeved with an outer rod 4 through a spring buckle 3, a lower limit retaining ring 8 is arranged on the outer edge of the bottom end of the outer rod 4, an outer rod outer thread layer 5 is arranged on the outer wall of the outer rod 4 above the lower limit retaining ring 8, an outer rod inner thread limit ring 6 is sleeved on the outer thread layer 5 of the outer rod, and an upper rubber ring 7 is sleeved on the outer wall of the outer rod 4 between the outer rod inner thread limit ring 6 and the lower limit retaining ring 8.

[0025] The top of the bottom blocking baffle 11 is provided with a connecting column 13, and the connecting column 13 is provided with a connecting column external thread layer, and the inner wall of the bottom end of the inner rod 1 is provided with an inner rod internal thread layer that matches the external thread layer. The inner wall of the upper limit baffle ring 9 and the outer wall of the inner rod 1 are an integrated structure to achieve the overall limiting strength during the pulling and inserting operation. The bottom blocking baffle 11 is a sheet structure, and the outer diameter of the bottom blocking baffle 11 is not less than the inner diameter of the upper limit baffle ring 9. The outer diameter of the lower rubber ring 10 is not less than the outer diameter of the bottom blocking baffle 11, and the support and limiting stability of the lower rubber ring 10 are enhanced during the upward pulling process. The outer diameter of the lower rubber ring 10 is not greater than the outer diameter of the upper rubber ring 7. There are at least two spring buckles 3, which are distributed from top to bottom in the middle upper position of the inner rod 1, and a limiting hole 12 that matches the spring buckle 3 is provided on the outer rod 4.

[0026] The outer rod 4 is a tubular structure, the inner diameter of the outer rod 4 matches the outer diameter of the inner rod 1, and the length of the inner rod 1 is not less than twice the length of the outer rod 4. The central part of the lower limit retaining ring 8 is provided with a through hole that matches the outer wall of the inner rod 1, and the inner rod 1 is inserted into the through hole, and the lower limit retaining ring 8 and the outer wall of the outer rod 4 are an integral structure. The outer diameter of the lower limit retaining ring 8 is not less than the outer diameter of the inner thread limit ring 6 of the outer rod, and the outer thread layer 5 of the outer rod is an integral structure with the outer wall of the outer rod 4. The inner rod 1 is a tubular structure, and a hanging ring 2 is installed on the top of the inner rod 1.

[0027] When in use, the overall length of the inner rod 1 is 60mm, the length of the outer rod 4 is 30mm, the diameter of the upper rubber ring 7 is 100mm, and the diameter of the lower rubber ring 10 is 48mm. When it is necessary to perform dredging operations on small-diameter pipes, the positions of the inner rod 1 and the outer rod 4 are adjusted, the outer rod 4 moves up along the inner rod 1, and the spring buckle 3 at the top falls into the limiting hole 12. At this time, the bottom of the lower limiting retaining ring 8 is away from the top surface of the upper limiting retaining ring 9, and the upper part of the upper limiting retaining ring 9 moves out the longer length of the inner rod 1 to cooperate with the insertion operation of the small-diameter inner diameter.

[0028] Align the lower rubber ring 10 with the opening of the small-diameter pipe, and then insert the lower end of the inner rod 1 together with the lower rubber ring 10 into the inner cavity of the small-diameter pipe, use the lower rubber ring 10 to seal the inner cavity of the small-diameter pipe, and then quickly lift it up and pull it out to achieve the purpose of negative pressure dredging.

[0029] When in use, the overall length of the inner rod 1 is 60mm, the length of the outer rod 4 is 30mm, the diameter of the upper rubber ring 7 is 100mm, and the diameter of the lower rubber ring 10 is 48mm. When it is necessary to perform dredging operations on a larger diameter pipeline, the positions of the inner rod 1 and the outer rod 4 are adjusted, and the outer rod 4 moves down along the inner rod 1, and the spring buckle 3 at the bottom falls into the limiting hole 12, at which time the lower limiting retaining ring 8 is in contact with the top surface of the upper limiting retaining ring 9.

[0030] Align the upper rubber ring 7 with the opening of the larger diameter pipe, then insert the inner rod 1 and the lower end of the outer rod 4 together with the upper rubber ring 7 and the lower rubber ring 10 into the inner cavity of the larger diameter pipe, use the upper rubber ring 7 to seal the inner cavity of the larger diameter pipe, then quickly lift it up and pull it out to achieve the purpose of negative pressure dredging.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline dredging device, comprising an inner rod (1), characterized in that: The outer wall of the bottom end of the inner rod (1) is fixedly mounted with a limit ring (9) on the upper part of the inner rod (1); the outer wall of the inner rod (1) below the upper limit ring (9) is sleeved with a lower rubber ring (10); the bottom inner cavity of the inner rod (1) is mounted with a bottom blocking piece (11) matched with the bottom surface of the lower rubber ring (10) by means of a threaded connection; the outer wall of the inner rod (1) is fixedly mounted with a spring buckle (3) An outer rod (4) is sleeved thereon; a lower limit stop ring (8) is arranged on the outer edge of the bottom end of the outer rod (4); an outer rod outer thread layer (5) is arranged on the outer wall of the outer rod (4) above the lower limit stop ring (8); an outer rod inner thread limit ring (6) is sleeved on the outer thread layer (5); and an upper rubber ring (7) is sleeved on the outer wall of the outer rod (4) between the outer rod inner thread limit ring (6) and the lower limit stop ring (8).

2. The pipeline dredging device according to claim 1, characterized in that: A connecting column (13) is arranged on the top of the bottom blocking baffle (11), and an external thread layer of the connecting column is arranged on the connecting column (13); and an internal thread layer of the inner rod matching the external thread layer is arranged on the inner wall of the bottom end of the inner rod (1).

3. The pipeline dredging device according to claim 1, characterized in that: The inner wall of the upper limit stop ring (9) and the outer wall of the inner rod (1) are an integral structure, the bottom blocking piece (11) is a sheet-like structure, and the outer diameter of the bottom blocking piece (11) is not less than the inner diameter of the upper limit stop ring (9).

4. The pipeline dredging device according to claim 1, characterized in that: The outer diameter of the lower rubber ring (10) is not less than the outer diameter of the bottom blocking baffle (11), and the outer diameter of the lower rubber ring (10) is not greater than the outer diameter of the upper rubber ring (7).

5. The pipeline dredging device according to claim 1, characterized in that: There are at least two spring buckles (3), which are distributed from top to bottom at the upper middle position of the inner rod (1), and a limiting hole (12) matching with the spring buckles (3) is provided on the outer rod (4).

6. The pipeline dredging device according to claim 1, characterized in that: The outer rod (4) is a tubular structure, the inner diameter of the outer rod (4) matches the outer diameter of the inner rod (1), and the length of the inner rod (1) is not less than twice the length of the outer rod (4).

7. The pipeline dredging device according to claim 1, characterized in that: A through hole matching the outer wall of the inner rod (1) is provided at the center of the lower limit stop ring (8), and the inner rod (1) is inserted into the through hole. The lower limit stop ring (8) and the outer wall of the outer rod (4) are an integral structure.

8. The pipeline dredging device according to claim 1, characterized in that: The outer diameter of the lower limit stop ring (8) is not less than the outer diameter of the inner thread limit ring (6) of the outer rod, and the outer thread layer (5) of the outer rod and the outer wall of the outer rod (4) are an integral structure.

9. The pipeline dredging device according to claim 1, characterized in that: The inner rod (1) is a tubular structure, and a hanging ring (2) is installed on the top of the inner rod (1).

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