Urea return pipe unblocking device

Abstract

The utility model discloses a urea return pipe unblocking device which comprises an installation cylinder, a lead screw mechanism is rotationally arranged in the installation cylinder, one end of the lead screw mechanism is connected with a first driving motor arranged on the outer side of the installation cylinder, the outer side of the lead screw mechanism is connected with a driving block, and driving rods are fixedly installed on the two sides of the driving block. A connecting rod is mounted on one side of the driving rod, one end of the connecting rod penetrates through the outer side of the mounting cylinder to be connected with a moving plate, the moving plate is connected with a mounting block through a connecting column, an efficient driving mechanism is mounted in the mounting block, and the efficient driving mechanism can drive a rotating column to rotate; and one end of the rotating column is rotationally connected with the interior of the stabilizing cylinder, and the outer side of the rotating column is connected with a scraper through a positioning rod. According to the blockage clearing device for the urea return pipe, in order to solve the problems that in the long-term use process of the urea return pipe, blockage is likely to be caused by impurities and crystals in urea, and manual clearing is inconvenient, the lead screw mechanism is rotationally arranged in the mounting cylinder.

Description

TECHNICAL FIELD

[0001] The utility model relates to urea return pipe technical field, concretely is a urea return pipe unblocking device. BACKGROUND

[0002] The urea return pipe is a part of a vehicle urea system, mainly responsible for returning the residual urea solution in the urea pump to the urea tank from the urea pump, and the urea return pipe is prone to blockage due to impurities and crystallization in urea during long-term use, which is inconvenient for manual cleaning, and therefore a urea return pipe unblocking device is proposed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a urea return pipe unblocking device to solve the problem of blockage of the urea return pipe due to impurities and crystallization in urea during long-term use, which is inconvenient for manual cleaning.

[0004] To achieve the above object, the utility model provides the following technical scheme: a urea return pipe unblocking device, comprising a mounting cylinder, a lead screw mechanism is rotatably arranged inside the mounting cylinder, one end of the lead screw mechanism is connected with a first drive motor arranged outside the mounting cylinder, the outside of the lead screw mechanism is connected with a drive block, drive rods are fixedly installed on both sides of the drive block, a connecting rod is installed on one side of the drive rod, one end of the connecting rod penetrates to the outside of the mounting cylinder and is connected with a moving plate, the moving plate is connected with a mounting block through a connecting column, a high-efficiency drive mechanism is installed inside the mounting block, the high-efficiency drive mechanism can drive a rotating column to rotate, one end of the rotating column is rotatably connected with a stabilizing cylinder, and the outside of the rotating column is connected with a scraper through a positioning rod.

[0005] Preferably, the mounting cylinder is symmetrically provided with a mounting frame on the outside of one end close to the first drive motor.

[0006] Through the above technical scheme, the mounting cylinder can be conveniently installed.

[0007] Preferably, one end of the drive rod is provided with a sliding block, and the sliding block slides in a sliding groove formed in the inner wall of the mounting cylinder.

[0008] Through the above technical scheme, the moving stability of the drive rod is improved.

[0009] Preferably, a support block cooperating with the connecting rod is arranged on the outside of one end of the mounting cylinder close to the moving plate, and the support block is slidably connected with the connecting rod inside.

[0010] Through the above technical scheme, the moving stability of the connecting rod is improved.

[0011] Preferably, the high-efficiency drive mechanism includes a second drive motor, and the output end of the second drive motor can drive the first gear to rotate through the first rotating rod. The first gear meshes with the second gear, and the second gear is installed on the outside of the second rotating rod. One end of the second rotating rod is connected to the rotating column, and the size of the first gear is larger than that of the second gear.

[0012] The above technical solution facilitates the rotation of the rotating column.

[0013] Preferably, an anti-corrosion layer is fixedly provided on the outer side of the scraper. The anti-corrosion layer includes an epoxy resin layer, and a titanium alloy coating and a polyvinyl chloride coating are sequentially coated and fixed on the outer side of the epoxy resin layer.

[0014] The above technical solutions improve the corrosion resistance of the scraper.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This urea return pipe unblocking device solves the problem that the urea return pipe is easily blocked by impurities and crystals in urea during long-term use, and manual cleaning is inconvenient. It utilizes a screw mechanism rotatably installed inside the mounting cylinder, with one end of the screw mechanism connected to a first drive motor located outside the mounting cylinder. The outside of the screw mechanism is connected to a drive block, and drive rods are fixedly installed on both sides of the drive block. A connecting rod is installed on one side of the drive rod, and one end of the connecting rod extends through to the outside of the mounting cylinder and connects to a moving plate. The moving plate is connected to the mounting block via a connecting column. The mounting block is equipped with a high-efficiency drive mechanism that drives the rotating column to rotate. One end of the rotating column is rotatably connected to the inside of the stabilizing cylinder. The outside of the rotating column is connected to the scraper via a positioning rod. When it is necessary to clean the inner wall of the urea return pipe, the scraper is placed inside the urea return pipe so that it contacts the inner wall. At this time, the second drive motor and the first drive motor are turned on. Under the action of the second drive motor, the scraper rotates, thereby scraping off the adhesive on the inner wall of the urea return pipe. Under the action of the first drive motor, the scraper moves to clean the blockages in the urea return pipe at various locations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point C;

[0020] Figure 5 It is anticorrosive layer structure schematic view of the utility model.

[0021] In the figure: 1, installation cylinder; 101, screw rod mechanism;102, first drive motor;2, drive block;201, drive rod;202, connecting rod;3, moving plate;301, connecting column;4, mounting block;5, high-efficiency drive mechanism;501, second drive motor;502, first rotary rod;503, first gear;504, second gear;505, second rotary rod;6, rotary column;601, positioning rod;602, scraper;603, anticorrosive layer;6031, epoxy resin layer;6032, titanium alloy coating;6033, polyvinyl chloride coating;7, stabilizing cylinder;8, mounting bracket;9, supporting block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a urea return pipe clearing device, screw rod mechanism 101 is rotationally arranged in installation cylinder 1, and one end of screw rod mechanism 101 is connected with the first drive motor 102 outside installation cylinder 1.

[0024] Further illustrate, installation cylinder 1 is symmetrically provided with mounting bracket 8 outside one end of first drive motor 102, by being provided with mounting bracket 8, it is convenient to install installation cylinder 1 later.

[0025] Further illustrate, the first drive motor 102 outside is provided with breathable protective cover, and breathable protective cover and installation cylinder 1 outside are detachably connected.

[0026] Specifically, the outer side of the lead screw mechanism 101 is connected with the driving block 2, driving rods 201 are fixedly installed on the two sides of the driving block 2, a connecting rod 202 is installed on one side of the driving rod 201, one end of the connecting rod 202 penetrates through the outer side of the mounting cylinder 1 and is connected with the moving plate 3, the moving plate 3 is connected with the mounting block 4 through a connecting column 301, and the high-efficiency driving mechanism 5 is installed in the mounting block 4. The high-efficiency driving mechanism 5 can drive the rotating column 6 to rotate, one end of the rotating column 6 is rotatably connected with the inside of the stabilizing cylinder 7, one end of the stabilizing cylinder 7 is fixedly connected with the outside of the mounting block 4, and the stability of the rotating column 6 during rotation can be improved by arranging the stabilizing cylinder 7. The outer side of the rotating column 6 is connected with the scraper 602 through a positioning rod 601.

[0027] In a further embodiment, a sliding block is installed at one end of the driving rod 201, and the sliding block slides in a sliding groove formed in the inner wall of the mounting cylinder 1. The stability of the driving rod 201 during movement is improved by the above arrangement.

[0028] In a further embodiment, a support block 9 that cooperates with the connecting rod 202 is arranged on the outer side of one end of the mounting cylinder 1 close to the moving plate 3, and the support block 9 is slidably connected with the connecting rod 202. The stability of the connecting rod 202 during movement is improved by arranging the support block 9, and the connecting rod 202 is also supported to a certain extent.

[0029] Specifically, the high-efficiency driving mechanism 5 comprises a second driving motor 501, and the output end of the second driving motor 501 can drive the first gear 503 to rotate through a first rotating rod 502. The first gear 503 is engaged with a second gear 504, and the second gear 504 is installed on the outer side of a second rotating rod 505. One end of the second rotating rod 505 is connected with the rotating column 6. The size of the first gear 503 is larger than that of the second gear 504, so that the second gear 504 can be driven to rotate at a higher speed when the first gear 503 rotates.

[0030] Further, a corrosion-resistant layer 603 is fixedly arranged on the outer side of the scraper 602. The corrosion-resistant layer 603 comprises an epoxy resin layer 6031, and a titanium alloy coating layer 6032 and a polyvinyl chloride coating layer 6033 are sequentially coated and fixed on the outer side of the epoxy resin layer 6031. The three-layer corrosion-resistant coating further improves the corrosion resistance of the scraper 602 and prolongs the service life of the scraper 602.

[0031] When the urea return pipe inner wall needs to be cleaned, the scraper 602 is placed inside the urea return pipe, the scraper 602 is in contact with the urea return pipe inner wall, at this time, the second driving motor 501 and the first driving motor 102 are started, under the action of the second driving motor 501, the first gear 503 drives the second gear 504 and the second rotating rod 505 to rotate, the second rotating rod 505 drives the rotating column 6 to rotate, thereby the scraper 602 is driven to rotate by the positioning rod 601, the urea pipe inner wall adherent is scraped off, under the action of the first driving motor 102, the screw rod mechanism 101 rotates, thereby the driving block 2 and the driving rod 201 are driven to move, the driving rod 201 drives the moving plate 3 and the scraper 602 to move through the connecting rod 202, thereby the urea return pipe blockage at each position is cleaned.

[0032] The terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only a simplified description for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A urea return pipe unblocking device comprising a mounting cylinder (1), characterized in that: The mounting barrel (1) is internally rotatably provided with a screw rod mechanism (101), one end of the screw rod mechanism (101) is connected with a first driving motor (102) arranged outside the mounting barrel (1), the outside of the screw rod mechanism (101) is connected with a driving block (2), driving rods (201) are fixedly installed on the two sides of the driving block (2), a connecting rod (202) is installed on one side of the driving rod (201), one end of the connecting rod (202) penetrates to the outside of the mounting barrel (1) and is connected with a moving plate (3), the moving plate (3) is connected with a mounting block (4) through a connecting column (301), a high-efficiency driving mechanism (5) is installed in the mounting block (4), the high-efficiency driving mechanism (5) can drive a rotating column (6) to rotate, one end of the rotating column (6) is rotatably connected with a stabilizing barrel (7), and the outside of the rotating column (6) is connected with a scraper (602) through a positioning rod (601).

2. The urea return pipe unblocking device according to claim 1, characterized in that: The mounting barrel (1) is symmetrically provided with a mounting frame (8) on the outside of one end close to the first driving motor (102).

3. The urea return pipe unblocking device according to claim 1, characterized in that: One end of the driving rod (201) is provided with a sliding block, and the sliding block slides in a sliding groove formed in the inner wall of the mounting barrel (1).

4. The urea return pipe unblocking device according to claim 1, characterized in that: The mounting barrel (1) is provided with a supporting block (9) used in cooperation with the connecting rod (202) on the outside of one end close to the moving plate (3), and the supporting block (9) is slidably connected with the connecting rod (202) inside.

5. The urea return pipe unblocking device according to claim 1, characterized in that: The high-efficiency driving mechanism (5) comprises a second driving motor (501), and the output end of the second driving motor (501) drives a first gear (503) to rotate through a first rotating rod (502), the first gear (503) is engaged with a second gear (504), the second gear (504) is installed on the outside of a second rotating rod (505), one end of the second rotating rod (505) is connected with the rotating column (6), and the size of the first gear (503) is greater than that of the second gear (504).

6. The urea return pipe unblocking device according to claim 1, characterized in that: The outside of the scraper (602) is fixedly provided with a corrosion-resistant layer (603), the corrosion-resistant layer (603) comprises an epoxy resin layer (6031), and a titanium alloy coating (6032) and a polyvinyl chloride coating (6033) are sequentially coated and fixed on the outside of the epoxy resin layer (6031).

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