Municipal sewage pipeline dredging equipment

Abstract

The utility model discloses municipal sewage pipeline dredging equipment which comprises a cylinder and three crawler walking mechanisms, two parallel connecting rods a are hinged to the front portion of each installation strip, the outer ends of the two parallel connecting rods a are hinged to the crawler walking mechanisms, a buffer is hinged to a lug seat, a sliding block is fixedly installed at the front end of the buffer, and the sliding block is connected with the cylinder. A front-back penetrating guide groove is formed in the lower portion of the sliding block and connected with the mounting strip in a matched and clamped mode, the sliding block is provided with a left-right penetrating pin column, the pin column penetrates through the kidney-shaped hole and is in sliding connection with the kidney-shaped hole, elastic telescopic rods are connected between the two sides of the sliding block and the crawler walking mechanism, and a self-rotating spray head is installed at the front end of the cylinder. Three evenly-distributed crawler walking mechanisms are arranged along the circumference of the cylinder and used for being pressed on the inner wall of a sewage pipe to walk, so that blockage in the deep position of a pipeline can be cleaned, the self-rotating spray head is driven by high-pressure water flow to rotate when spraying water from the front end, dirt is continuously sprayed and swept, the dirt is rapidly disintegrated and flows out along with the water flow, and the dredging efficiency is high.

Description

Municipal sewage pipe dredging equipment Technical Field

[0001] This utility model relates to the field of pipeline dredging technology, specifically to municipal sewage pipeline dredging equipment. Background Technology

[0002] Sewage pipes are an important part of cities, collecting sewage and treating it to meet discharge standards. However, with prolonged use, sewage pipes accumulate blockages, which greatly affect the amount of sewage discharged. The current method for clearing blockages in sewage pipe networks is mainly to use high-pressure water guns for cleaning. However, the depth to which high-pressure water guns can reach is limited, making it difficult to clean deep blockages. Chinese invention patent CN109610629B discloses a method for unblocking sewage pipes using a sewage pipe network dredging device. A high-pressure flushing truck connects to the inlet pipe via a hose, and the dredging device is then inserted into the sewage pipe. The high-pressure flushing truck's water pump is turned on, and water enters the dredging device. The water, driven by a rotating spray mechanism, moves the entire conveying device within the sewage pipe. Simultaneously, a hydraulic motor drives a drilling mechanism to rotate, breaking down blockages in the sewage pipe. When the blockage is too tight, restricting the rotation of the drilling mechanism, the high-pressure flushing truck is turned off, and the dredging device is pulled back a short distance using the hose. The high-pressure flushing truck is then turned on again, and the moving and rotating drilling mechanism impacts the blockage. This process is repeated multiple times. This invention can efficiently dredge and clean pipes, removing blockages. However, the above solution also has the following shortcomings: the main causes of sewage pipe blockage are sediment, plastic bags, cloth debris, etc. Drilling is a relatively easy way to break up the blockage. The water spray is located at the rear and does not spray directly at the front of the blockage, resulting in low unblocking efficiency. Moreover, the rotation of the drilling mechanism is prone to getting entangled in debris. Summary of the Invention

[0003] The purpose of this utility model is to provide municipal sewage pipeline dredging equipment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a municipal sewage pipe dredging device, comprising a cylinder and three tracked walking mechanisms. Three mounting strips along the length direction are evenly welded to the outer circumference of the cylinder. Each mounting strip has two parallel connecting rods a hinged at its front end, with the outer ends of the two parallel connecting rods a hinged to the tracked walking mechanism. A radially extending lug is welded to the rear of each mounting strip, and a buffer is hinged to the lug. A slider is fixedly mounted at the front end of the buffer. A waist-shaped hole along the length direction is provided in the middle of each mounting strip. A guide groove penetrating from front to back is provided at the lower part of the slider, and the guide groove is adapted to and engaged with the mounting strip. The slider has a pin penetrating from left to right, which passes through the waist-shaped hole and is slidably connected to it. Elastic telescopic rods are connected between the two sides of the slider and the tracked walking mechanism. A self-rotating nozzle is installed at the front end of the cylinder.

[0005] Preferably, the self-rotating nozzle includes a mounting sleeve in which a freely rotatable nozzle is snapped. The nozzle has a rotary housing structure, with a conical tip at the front end and a straight pipe section at the rear end of the conical tip. The conical tip has multiple outwardly oriented spray holes, and multiple spiral blades are uniformly welded to the inner wall of the straight pipe section.

[0006] Preferably, the tail of the mounting sleeve is provided with an internal thread, and the internal thread is adapted to be screwed to the front end of the cylinder.

[0007] Preferably, the elastic telescopic rod comprises two interlocking round rods, with a spring between the two round rods for resetting.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This utility model has three evenly distributed track walking mechanisms along the circumference of the cylinder, which are used to press against the inner wall of the sewage pipe to walk, thereby being able to clean the blockage deep in the pipe. When the self-rotating nozzle sprays water from the front end, it is driven by the high pressure water flow to rotate, continuously spraying and sweeping the dirt, causing it to quickly disintegrate and flow out with the water flow, resulting in high unblocking efficiency. Attached Figure Description

[0009] Figure 1 is a schematic diagram of the structure of this utility model;

[0010] Figure 2 is a side view of the structure of this utility model;

[0011] Figure 3 is a schematic diagram of the exploded structure of the rotating nozzle.

[0012] In the diagram: 1. Cylinder; 2. Mounting strip; 3. Tracked walking mechanism; 4. Connecting rod a; 5. Buffer; 6. Waist-shaped hole; 7. Slider; 8. Elastic telescopic rod; 9. Self-rotating nozzle; 91. Mounting sleeve; 92. Nozzle; 93. Spray hole; 94. Spiral blade; 10. Ear seat. Detailed Implementation

[0013] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Please refer to Figures 1-3. This utility model provides a technical solution: a municipal sewage pipe dredging device, including a cylinder 1 and three tracked walking mechanisms 3. Each tracked walking mechanism 3 has a corresponding motor driving its movement. The tail of the cylinder 1 is connected to a water pipe and a water pump. In use, this device pulls the water pipe into the interior of the sewage pipe. Three mounting strips 2 are evenly welded along the circumference of the cylinder 1. Each mounting strip 2 has two parallel connecting rods a4 hinged at the front. The outer ends of the two parallel connecting rods a4 are hinged to the tracked walking mechanism 3. Changing the angle between the connecting rods a4 and the cylinder 1 can adjust the radial position of the tracked walking mechanism 3 to accommodate sewage pipes of different inner diameters.

[0015] A radially extending lug 10 is welded to the rear of the mounting strip 2. A buffer 5 is hinged to the lug 10. A slider 7 is fixedly mounted to the front end of the buffer 5. The middle of the mounting strip 2 has an oblong hole 6 along its length. The lower part of the slider 7 has a through-slot that fits and engages with the mounting strip 2. The slider 7 has a through-pin that passes through the oblong hole 6 and is slidably connected to it. The buffer 5 applies a forward thrust to the slider 7, causing the tracked walking mechanism 3 to elastically press against the inner wall of the sewage pipe for movement. Elastic telescopic rods 8 are connected between the two sides of the slider 7 and the tracked walking mechanism 3. The elastic telescopic rod 8 consists of two interlocking round rods with a spring between them for reset. If there are debris inside the sewage pipe causing unevenness, the elastic telescopic rod 8 is used to offset the impact during movement.

[0016] A self-rotating nozzle 9 is installed at the front end of the cylinder 1. The self-rotating nozzle 9 includes a mounting sleeve 91, in which a freely rotatable nozzle 92 is snapped. The nozzle 92 has a rotating shell structure, with a conical tip at the front end and a straight pipe section at the rear end of the conical tip. The conical tip has multiple outwardly angled spray holes 93, and multiple spiral blades 94 are uniformly welded to the inner wall of the straight pipe section. The axial water flow impacts the spiral blades, generating torque that causes the nozzle 92 to rotate, and the water flow continuously sweeps away blockages for flushing. The tail end of the mounting sleeve 91 has an internal thread that is adapted to be screwed onto the front end of the cylinder 1.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal sewer pipe cleaning apparatus comprising a cylindrical body (1) and three crawler track mechanisms (3), characterised in that: The cylinder (1) has three mounting strips (2) evenly welded along its length on the outer circumference. Each mounting strip (2) has two parallel connecting rods a (4) hinged at the front. The outer ends of the two parallel connecting rods a (4) are hinged to the track walking mechanism (3). The rear of the mounting strip (2) has radially extending lugs (10). A buffer (5) is hinged on the lugs (10). A slider (7) is fixedly installed at the front end of the buffer (5). The middle of the mounting strip (2) has a waist-shaped hole (6) along its length. The lower part of the slider (7) has a guide groove that runs through the front and back. The guide groove is adapted to and snapped into the mounting strip (2). The slider (7) has a pin that runs through the left and right sides. The pin passes through the waist-shaped hole (6) and slides with it. Elastic telescopic rods (8) are connected between the two sides of the slider (7) and the track walking mechanism (3). A self-rotating nozzle (9) is installed at the front end of the cylinder (1).

2. The municipal sewage pipeline dredging equipment according to claim 1, characterized in that: The self-rotating nozzle (9) includes a mounting sleeve (91), in which a freely rotatable nozzle (92) is snapped. The nozzle (92) has a rotating shell structure. The front end of the nozzle (92) is a cone tip, and the rear end of the cone tip is provided with a straight pipe. The cone tip is provided with multiple outwardly angled spray holes (93). Multiple spiral blades (94) are uniformly welded to the inner wall of the straight pipe.

3. A municipal sewer pipe unblocking apparatus according to claim 2, characterised in that: The end of the mounting sleeve (91) is provided with an internal thread and the internal thread is adapted to be screwed into the front end of the cylinder (1).

4. The municipal sewage pipeline dredging equipment according to claim 1, characterized in that: The elastic telescopic rod (8) includes two interlocking round rods, with a spring between the two round rods for resetting.

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