Cleaning mechanism for inner wall of ball receiving and sending cylinder

Abstract

The utility model discloses a cleaning mechanism for the inner wall of a ball receiving and sending cylinder. The cleaning mechanism comprises a fixing ring, a fixing rod, a lead screw, a sleeve, a rotating rod, a cleaning ring, a clamping plate, a clamping groove, a fixing nut, a crank and a cleaning unit. A cleaning ring tightly attached to the inner wall of the ball receiving and sending cylinder is arranged to clean the inner wall of the ball receiving and sending cylinder, a cleaning unit of a brush / sponge or rubber strip double-layer structure is arranged to enhance the cleaning effect, and a lead screw is arranged to be matched with a crank to enable the cleaning ring to conduct cleaning in the circumferential direction and cleaning in the central axis direction of the ball receiving and sending cylinder on the inner wall of the ball receiving and sending cylinder. The cleaning device solves the problem that the inner wall of the ball receiving and sending cylinder is not completely, fully and thoroughly cleaned, the inner wall of the ball receiving and sending cylinder is thoroughly cleaned, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline cleaning technology, specifically a cleaning mechanism for the inner wall of a launching and receiving tube. Background Technology

[0002] After long-term transportation, oil pipelines may accumulate various residues on their inner walls, such as oil sludge and mud. Pipeline pigs are needed to remove these residues and restore pipeline flow. These pigs are launched and received using pig launcher and receiver tubes. These tubes are installed at both ends of the main pipeline and are used to launch and receive the pigs. When the pig is retracted into the launcher and receiver tube after cleaning, it will bring with it various residues and accumulated water to the opening of the tube, which needs to be scraped out and cleaned.

[0003] For example, Chinese invention patent CN221493577U, published on August 9, 2024, discloses an auxiliary cleaning device for a ball receiving and launching tube. The device includes a collar, on the surface of which is an installation assembly for fixing the collar to the opening of the ball receiving and launching tube. A cleaning rod passes through the collar, and a semi-circular scraper is fixedly connected to one end of the cleaning rod. Several mounting blocks are fixedly connected to the side of the collar away from the semi-circular scraper. A support plate is rotatably connected to the surface of each mounting block, and a rotating block for positioning the support plate is rotatably connected to the surface of the mounting block. A stop block for limiting the rotation block is fixedly connected to the surface of the mounting block near the lower end of the rotating block. Several positioning elements are installed on the side of the support plate near the cleaning rod, and a clamping assembly for fixing the front end of a collection bag is installed on the surface of the collar near the lower end. This application solves the problem of the difficulty in cleaning debris and dirty water accumulated on the surface of the ball receiving and launching tube during the retrieval of a pig.

[0004] As can be seen from the above patents, the semi-circular scraper of the auxiliary cleaning device can only clean half of the inner wall of the ball receiving and launching tube at a time, which will result in incomplete, insufficient and inadequate cleaning. If the entire inner wall of the ball receiving and launching tube needs to be cleaned, it must be done 1-2 more times, which reduces the cleaning efficiency to a certain extent. Therefore, the cleaning mechanism needs to be redesigned to improve it. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a cleaning mechanism for the inner wall of a ball receiving and launching tube.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cleaning mechanism for the inner wall of a ball receiving and launching tube includes a fixed ring, a fixed rod and a lead screw at the center of the fixed ring, a sleeve connected to the end of the lead screw away from the fixed ring, two cross-shaped rotating rods embedded in the sleeve, and four cleaning rings with 90º circumferential surfaces embedded between the adjacent outer ends of the rotating rods.

[0008] Preferably, a retaining plate is provided at the radial outer end of the rotating rod, the retaining plate being perpendicular to the radial direction of the rotating rod, and a retaining groove is provided at the corresponding position of the cleaning ring, the retaining plate being embedded and fixed in the retaining groove.

[0009] Preferably, a fixing nut is connected to the top of the lead screw away from the fixing ring.

[0010] Preferably, the lead screw passes through the center of the fixed ring and extends to the left to the tail end, where a crank handle is connected.

[0011] Preferably, a cleaning unit is connected to the circumference of the cleaning ring. The cleaning unit is configured in two layers: the left layer near the fixing ring is a brush, and the right layer away from the fixing ring is a sponge or rubber strip.

[0012] Preferably, the cleaning unit and the inner wall of the ball receiving and launching tube are in close contact.

[0013] Preferably, the fixing ring includes a ring body, a hinge block, a hinge, and a locking unit. The ring body is connected to the hinge block and rotates around the hinge. The locking unit is connected to the open end of the ring body.

[0014] The beneficial effects of this utility model are:

[0015] A cleaning ring that fits snugly against the inner wall of the receiver / serve tube is installed to clean the inner wall of the receiver / serve tube. A cleaning unit with a double-layer structure of brush / sponge or rubber strip is set up to enhance the cleaning effect. A screw and crank are set up to make the cleaning ring clean the inner wall of the receiver / serve tube in a circumferential direction and in the direction of the central axis of the receiver / serve tube. The inner wall of the receiver / serve tube is completely, thoroughly and thoroughly cleaned. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of a cleaning mechanism for the inner wall of a ball receiving and launching tube proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the cleaning ring and accessories of a cleaning mechanism for the inner wall of a ball launching and receiving tube proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing ring of a cleaning mechanism for the inner wall of a ball receiving and launching tube proposed in this utility model;

[0021] Figure 1 As shown: 1. Fixing ring, 2. Fixing rod, 3. Screw, 4. Sleeve, 5. Rotating rod, 6. Cleaning ring, 7. Clamping plate, 8. Clamping groove, 9. Fixing nut, 10. Handle;

[0022] Figure 2 As shown: 4. Sleeve, 5. Rotating rod, 6. Cleaning ring, 7. Clamping plate, 8. Clamping groove, 11. Cleaning unit;

[0023] Figure 3 As shown: 1. Fixed ring, 101. Ring body, 102. Hinge block, 103. Hinge, 104. Locking unit, 2. Fixed rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Reference Figure 1-3 The present invention discloses a cleaning mechanism for the inner wall of a ball receiving and launching tube, comprising a fixing ring 1, a fixing rod 2, a lead screw 3, a sleeve 4, a rotating rod 5, a cleaning ring 6, a clamping plate 7, a clamping groove 8, a fixing nut 9, a crank handle 10, and a cleaning unit 11.

[0031] Reference Figure 3 The size of the fixing ring 1 can be selected according to the diameter of the flange at the opening end of the receiving and launching tube. The fixing ring 1 is fitted onto the flange at the opening end of the receiving and launching tube by a ring body 101 that rotates around the hinge 103, and is locked by the locking unit 104, so that the fixing ring 1 is fixed on the receiving and launching tube. The fixing rod 2 set at the center of the fixing ring 1 overlaps between the ring bodies 101 and is fixed on the receiving and launching tube.

[0032] Reference Figure 1The lead screw 3 is rotatably connected to the fixed rod 2 and passes through the fixed rod 2, extending to the left to the tail end. The tail end is connected to a crank handle 10, which is used to crank the lead screw 3 to rotate on the fixed rod 2, thereby driving the sleeve 4 at the top, the rotating rod 5, and the cleaning ring 6 to rotate. The top end of the lead screw 3 is connected to the sleeve 4 and the fixing nut 9, which is used to fix the sleeve 4 and lock it onto the lead screw 3.

[0033] Reference Figure 2 Two cross-shaped rotating rods 5 are embedded in the sleeve 4. The center of the cross of the rotating rods 5 coincides with the center of the sleeve 4. The rotating rods 5 divide the inner wall of the ball receiving and launching tube into four uniform 90º circumferential surfaces. A cleaning ring 6 is embedded at the top of the rotating rods 5. The rotating rods 5 are used to drive the cleaning ring 6 fixed on it to rotate around the lead screw 3.

[0034] In an optional embodiment, a retaining plate 7 is provided at the radial outer end of the rotating rod 5. The retaining plate 7 is perpendicular to the radial direction of the rotating rod 5. A retaining groove 8 is provided at the corresponding position of the cleaning ring 6. The retaining plate 7 can be embedded and fixed in the retaining groove 8, so that the cleaning ring 6 is fixed on the rotating rod 5. During cleaning, the rotating rod 5 can also support the cleaning ring 6.

[0035] In an optional embodiment, a cleaning unit 11 is connected to the circumference of the cleaning ring 6. The cleaning unit 11 is configured in two layers: the left layer near the fixing ring 1 is a brush, and the right layer away from the fixing ring 1 is a sponge or rubber strip. The cleaning unit 11 is in close contact with the inner wall of the receiving and serving tube. The brush can perform preliminary brushing on the inner wall of the receiving and serving tube, and the sponge or rubber strip can block the cleaning residue and accumulated water to the opening of the receiving and serving tube while scraping again.

[0036] It should be noted that the collection mechanism and its auxiliary mechanism that need to be set at the opening of the ball receiving and launching tube in this application are existing technologies and will not be described in detail here.

[0037] The installation and use process of this application is as follows:

[0038] When using the cleaning mechanism of this application, the installation process begins. First, the cover of the receiving and launching tube is opened. Then, the fixing ring 1 is placed on the flange at the opening of the receiving and launching tube. The fixing ring 1 is clamped and fixed on the flange by the locking unit 104. At the same time, the fixing rod 2 is embedded in the fixing ring 1 to fix the fixing rod 2 on the flange. Next, the lead screw 3 is rotatably connected to the center of the fixing rod 2. The sleeve 4 and the fixing nut 9 are screwed onto the top of the lead screw 3. The rotating rod 5 is then embedded in the sleeve 4. The crank handle 10 is turned to rotate the lead screw 3 to the right, thereby pushing the sleeve 4 and the rotating rod 5 to the right inside the receiving and launching tube. When the tube reaches the position that needs to be cleaned, the four 90º circumferential cleaning rings 6 are sequentially embedded into the rotating rod 5. The retaining plate 7 on the rotating rod 5 is embedded into the retaining groove 8 on the cleaning ring 6 for fixation. After installation, the device is ready for use.

[0039] Turn the crank handle 10 to start working, causing the lead screw 3 to retract to the left inside the ball receiving tube. At the same time, the sleeve 4, rotating rod 5, and cleaning ring 6 are driven to rotate in a circular direction around the inner wall of the ball receiving tube and in the direction of the central axis of the ball receiving tube. The left layer brush of the cleaning unit 11 on the cleaning ring 6 performs a preliminary brushing in front, and the right sponge or rubber strip performs a second brushing and cleaning behind, while blocking the cleaning residue and accumulated water to the opening of the ball receiving tube.

[0040] Of course, the embodiments described in this specific implementation are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cleaning mechanism for the inner wall of a ball receiving and launching tube, comprising a fixing ring (1), wherein a fixing rod (2) and a lead screw (3) are disposed at the center of the fixing ring (1), characterized in that: A sleeve (4) is connected to the end of the lead screw (3) away from the fixed ring (1). Two cross-shaped rotating rods (5) are embedded in the sleeve (4). Four cleaning rings (6) with 90º circumferential surfaces are embedded between the adjacent outer ends of the rotating rods (5).

2. The cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 1, characterized in that: A retaining plate (7) is provided at the radial outer end of the rotating rod (5). The retaining plate (7) is perpendicular to the radial direction of the rotating rod (5). A slot (8) is provided at the corresponding position of the cleaning ring (6). The retaining plate (7) can be embedded and fixed in the slot (8).

3. A cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 1, characterized in that: The lead screw (3) is connected to a fixing nut (9) at its top end away from the fixing ring (1).

4. A cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 1, characterized in that: The lead screw (3) passes through the center of the fixed ring (1) and extends to the left to the tail end, where a crank handle (10) is connected.

5. A cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 1, characterized in that: The cleaning ring (6) is connected to a cleaning unit (11) on its circumference. The cleaning unit (11) is arranged in two layers. The left layer near the fixing ring (1) is a brush, and the right layer away from the fixing ring (1) is a sponge or rubber strip.

6. A cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 5, characterized in that: The cleaning unit (11) and the inner wall of the ball receiving and launching tube are closely fitted together.

7. A cleaning mechanism for the inner wall of a ball receiving and launching tube according to claim 1, characterized in that: The fixed ring (1) includes a ring body (101), a hinge block (102), a hinge (103), and a locking unit (104). The ring body (101) is connected to the hinge block (102) and rotates around the hinge (103). The locking unit (104) is connected to the open end of the ring body (101).

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