Variable-diameter pipeline cleaning brush
By designing the support plate, curved head and connecting rod structure in the variable diameter pipe cleaning brush, a connecting screw can achieve a stable connection between the brush and the connecting rod, which solves the problem of excessive use of connecting screws and difficult to remove in the prior art, and achieves a smaller connector size and a more stable connection.
Patent Information
- Application Number
- CN202421990664.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-16
AI Technical Summary
When connecting brushes and connectors, existing variable diameter pipe cleaning brushes require multiple connecting screws, resulting in an increase in overall size of the connector. The connecting screws are easily damp and rusted when replacing brushes later, making it difficult to remove them smoothly.
A variable diameter pipe cleaning brush is designed. By installing a support plate arranged in the radial direction of the cylinder on the inner surface of the brush, and a curved head is arranged on the disc to cooperate with the support plate. Combined with the design of the connecting rod and the L-shaped rod, a connecting screw can achieve a stable connection between the brush and the connecting rod, reducing the use of the connecting screw.
While reducing the use of connecting screws, it ensures the connection stability between the connecting rod and the brush, and reduces the overall size of the connector, reducing the number of connecting screws that are difficult to remove due to rust.
Smart Images
Figure CN222941937U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pipe cleaning brush with a variable diameter, belonging to the technical field of pipe cleaning. Background Art
[0002] In order to be suitable for cleaning pipes with different inner diameters, variable-diameter cleaning brushes are increasingly used. The variable-diameter cleaning brush includes a barrel for installation on the output shaft of a driving motor, and a plurality of arc-shaped brushes arranged in a ring and equidistantly arranged on the outside of the barrel, wherein a connector with adjustable length is installed between the barrel and the brush. To facilitate the replacement of the brush, one of the commonly used connection methods is to connect the brush and the connector with connecting screws. Because the brush rotates at high speed when cleaning the inner wall of the pipe, in order to ensure the connection stability between the connector and the brush, the surface area of the contact part between the connector and the brush needs to be larger so as to install at least two connecting screws. On the one hand, this method increases the overall size of the connector, and on the other hand, multiple connecting screws are used to connect the brush and the connector. When the brush is replaced later, the number of connecting screws that are difficult to remove smoothly due to moisture and rust increases. Therefore, it is necessary to design a variable-diameter pipe cleaning brush that reduces the use of connecting screws. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model aims to provide a variable diameter pipe cleaning brush to solve the problems raised in the above-mentioned background technology. The utility model reduces the use of connecting screws and reduces the overall size of the connector.
[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a variable diameter pipe cleaning brush, including a cylinder, three arc-shaped brushes are arranged on the outside of the cylinder, a connector with adjustable length is installed between the brush and the cylinder, a support plate arranged along the radial direction of the cylinder is installed on the inner surface of the brush, a disk located between the three brushes is provided at one end of the cylinder, an arc head matching with the support plate is fixed in an annular shape and equidistantly on the annular side surface of the disk, the arc head is arranged along the tangential direction of the disk, the end of the support plate away from the brush is in contact with the arc head, and the disk is connected to the cylinder through a limit piece.
[0005] Furthermore, the connector includes a rectangular tube, and three rectangular tubes are installed in a circular shape and at equal intervals on the outer surface of one end of the cylinder close to the brush, and the rectangular tubes are arranged along the radial direction of the cylinder, and the end of the rectangular tube away from the cylinder is connected and fixed with an end cover, and a guide hole is opened in the middle of one side of the end cover, and a connecting rod is inserted in the guide hole, and one end of the connecting rod in the rectangular tube is connected and fixed with a rectangular block, and the rectangular block is slidably installed in the rectangular tube, and a spring is provided between the rectangular block and the end cover, and the spring is sleeved on the connecting rod, and a through hole is opened at the position where the brush contacts the connecting rod, and a connecting screw threadedly connected to the connecting rod is inserted in the through hole, and a connector is installed between the connecting rod and the brush.
[0006] Furthermore, the connector includes an L-shaped rod, and one end of the connecting rod outside the rectangular tube is connected and fixed with two symmetrically arranged L-shaped rods. The inner surface of the brush is provided with two positioning holes that match the L-shaped rods, and the end of the L-shaped rod away from the connecting rod is inserted into the positioning hole.
[0007] The cam is provided with a plurality of second screw holes at the middle position of the outer surface of the shaft, and a plurality of second screw holes are provided at the middle position of the outer surface of the shaft, and a plurality of second screw holes are provided at the inner surface of the shaft, and a plurality of second screw holes are provided at the inner surface of the shaft, and a plurality of second screw holes are provided at the middle position of the outer surface of the shaft.
[0008] Furthermore, a flange ring is connected and fixed to one end of the cylinder away from the disc, and a plurality of fixing holes for inserting bolts are equidistantly provided in a circular shape on one side of the flange ring.
[0009] Furthermore, a middle portion of one side of the inner surface of the brush is recessed to form a strip groove, one end of the support plate is installed in the strip groove, and a side of the support plate away from the brush is an arc surface.
[0010] Beneficial effects of the utility model:
[0011] 1. The two L-shaped rods on the connecting rod are respectively inserted into the corresponding positioning holes on the inner surface of the brush, and then the L-shaped rod and the positioning hole cooperate with each other, which increases the connection range between the connecting rod and the brush. At this time, the connecting screw is passed through the through hole and connected to the connecting rod thread, so that the brush and the connecting rod can be connected with one connecting screw, and the connection stability between the connecting rod and the brush is guaranteed while reducing the use of connecting screws. There is no need to increase the contact area between the connecting rod and the brush and use multiple connecting screws to connect the connecting rod and the brush. The overall size of the connector is reduced while reducing the use of connecting screws, and the number of connecting screws that are difficult to remove smoothly due to rust is reduced.
[0012] 2. Rotate the disc, and the disc drives the arc head to rotate. At this time, the relative position of the support plate and the arc head changes. Under the common support of the arc head and the support plate, the distance between the brush and the cylinder increases. The brush drives the rectangular block to slide in the space formed by the end cover and the rectangular tube through the connecting rod. At this time, the degree of spring extrusion changes. The clamping screw is used to limit the relative position of the end disc and the cylinder. Then, under the action of the support plate, arc head, rectangular tube, spring, connecting rod and other components, the position of the brush remains unchanged, so as to achieve the purpose of adjusting the outer diameter of the structure formed by the three brushes according to the inner diameter of the pipeline, which is suitable for cleaning pipelines with different inner diameters and expands the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0014] Figure 1 This is a schematic diagram of the structure of a variable diameter pipe cleaning brush of the utility model;
[0015] Figure 2 This is a stereoscopic view of a variable diameter pipe cleaning brush of the utility model from another perspective;
[0016] Figure 3 This is a schematic diagram of the assembly of a connecting rod, an L-shaped rod, an end cover, a rectangular tube and a cylinder in a variable diameter pipe cleaning brush of the utility model;
[0017] Figure 4 This is a schematic diagram of the assembly of an L-shaped rod, a spring, a rectangular block and a connecting rod in a variable diameter pipe cleaning brush of the utility model;
[0018] Figure 5 This is a three-dimensional diagram of a brush in a variable diameter pipe cleaning brush of the utility model;
[0019] Figure 6 It is a schematic diagram of the assembly of a rotating ring, a limiting ring, an end plate, a shaft rod, an arc-shaped head and a disc in a variable diameter pipe cleaning brush of the utility model;
[0020] In the figure: 1-cylinder, 2-brush, 3-positioning screw, 4-connecting screw, 5-rectangular tube, 6-connecting rod, 7-L-shaped rod, 8-tightening screw, 9-flange ring, 10-end plate, 11-round plate, 12-hexagonal hole, 13-support plate, 14-arc head, 15-end cover, 16-first screw hole, 17-second screw hole, 18-spring, 19-rectangular block, 20-blind hole, 21-strip groove, 22-through hole, 23-swivel, 24-limiting ring, 25-positioning hole, 26-shaft rod. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] See also Figure 1-Figure 3 The utility model provides a technical solution: a variable diameter pipe cleaning brush, comprising a barrel 1, an end of the barrel 1 away from the disc 11 is connected and fixed with a flange ring 9, a side surface of the flange ring 9 is annularly provided with a plurality of fixing holes for inserting bolts at equal intervals, and the design of the flange ring 9 facilitates the installation of the barrel 1 on the output shaft of the motor.
[0023] See also Figure 1-Figure 5, three arc-shaped brushes 2 are arranged on the outside of the cylinder 1, and three rectangular tubes 5 are installed in an annular shape and equidistantly on the outer surface of one end of the cylinder 1 close to the brush 2. The rectangular tubes 5 are arranged along the radial direction of the cylinder 1, and the end of the rectangular tube 5 away from the cylinder 1 is connected and fixed with an end cover 15, and a guide hole is opened in the middle of one side of the end cover 15, and a connecting rod 6 is inserted in the guide hole, and a rectangular block 19 is connected and fixed to the end of the connecting rod 6 in the rectangular tube 5, and the rectangular block 19 is slidably installed in the rectangular tube 5. A spring 18 is arranged between the rectangular block 19 and the end cover 15, and the spring 18 is sleeved on the connecting rod 6. A through hole 22 is opened at the contact position between the brush 2 and the connecting rod 6, and a connecting screw 4 threadedly connected to the connecting rod 6 is inserted in the through hole 22. Two symmetrically arranged L-shaped rods 7 are connected and fixed to the end of the connecting rod 6 on the outside of the rectangular tube 5, and two positioning holes 25 matching the L-shaped rod 7 are opened on the inner surface of the brush 2. The L-shaped rod 7 The end away from the connecting rod 6 is inserted into the positioning hole 25, and two L-shaped rods 7 are installed at the end of the connecting rod 6 close to the brush 2. When the connecting rod 6 and the brush 2 are connected by the connecting screw 4, the two L-shaped rods 7 on the connecting rod 6 are respectively inserted into the corresponding positioning holes 25 on the inner surface of the brush 2, and then the L-shaped rod 7 and the positioning hole 25 cooperate with each other, thereby increasing the connection range between the connecting rod 6 and the brush 2. At this time, the connecting screw 4 is passed through the through hole 22 and threadedly connected to the connecting rod 6, so that the brush 2 and the connecting rod 6 can be connected by only one connecting screw 4, and the connection stability between the connecting rod 6 and the brush 2 is guaranteed while reducing the use of the connecting screw 4. There is no need to increase the contact area between the connecting rod 6 and the brush 2 and use multiple connecting screws 4 to connect the connecting rod 6 and the brush 2. The overall size of the connector is reduced while reducing the use of the connecting screw 4, and the number of connecting screws 4 that are difficult to remove smoothly due to rust is reduced.
[0024] See also Figure 2 and Figure 5 A support plate 13 arranged along the radial direction of the barrel 1 is installed on the inner surface of the brush 2, wherein the middle position of one side of the inner surface of the brush 2 is recessed to form a strip groove 21, and the side of the support plate 13 away from the brush 2 is an arc surface. The design of the arc surface facilitates the movement of the support plate 13 and the arc head 14, so that one end of the support plate 13 is installed in the strip groove 21, thereby increasing the connection range between the support plate 13 and the brush 2.
[0025] See also Figure 2 , Figure 3 and Figure 6A disc 11 is provided at one end of the cylinder 1 between three brushes 2, and arc heads 14 matching with the support plate 13 are fixed in an annular shape and equidistantly on the annular side surface of the disc 11, and the arc heads 14 are arranged along the tangential direction of the disc 11, and the end of the support plate 13 away from the brush 2 is in contact with the arc head 14, and a shaft 26 is connected and fixed to the middle position of the side of the disc 11 facing the cylinder 1, and the shaft 26 is inserted in the cylinder 1, and a swivel 23 is sleeved at the middle position of the shaft 26, and both sides of the swivel 23 along the length direction of the shaft 26 are provided with limit rings 24, and the limit rings 24 are sleeved on the shaft 26 and are in contact with the shaft 26. The connection is fixed, and the limit ring 24 is in sliding contact with the swivel 23. A plurality of blind holes 20 are provided on the outer surface of the swivel 23. A plurality of first screw holes 16 aligned with the blind holes 20 are provided in the middle position of the outer surface of the cylinder 1. A positioning screw 3 is connected to the inner thread of the first screw hole 16, so that one end of the positioning screw 3 extends into the blind hole 20, thereby limiting the swivel 23 in the cylinder 1. When the disc 11 is rotated, the disc 11 drives the two limit rings 24 to rotate, and the two limit rings 24 cooperate with the swivel 23 to achieve that the position of the shaft 26 in the cylinder 1 remains unchanged, that is, the relative position of the disc 11 and the cylinder 1 is limited.
[0026] See also Figure 1-Figure 6 The end of the shaft 26 away from the disc 11 is connected and fixed with an end disc 10, and the end disc 10 is inserted in the cylinder 1. The outer surface of the end of the cylinder 1 away from the disc 11 is annularly and equidistantly provided with a plurality of second screw holes 17, and the second screw holes 17 are internally threadedly connected with a clamping screw 8 for limiting the relative position of the end disc 10 and the cylinder 1. The middle position of the side of the disc 11 away from the shaft 26 is provided with a hexagonal hole 12 for inserting an hexagonal wrench. The disc 11 is rotated, and the disc 11 drives the arc head 14 to rotate. At this time, the relative position of the support plate 13 and the arc head 14 changes. Under the joint support of the arc head 14 and the support plate 13, the distance between the brush 2 and the cylinder 1 increases. The brush 2 drives the rectangular block 19 to slide in the space formed by the end cover 15 and the rectangular tube 5 through the connecting rod 6. At this time, the degree of compression of the spring 18 changes. When the distance between the brush 2 and the cylinder 1 meets the requirement of the inner diameter of the pipeline, the clamping screw 8 is used to limit the relative position of the end plate 10 and the cylinder 1, so that the relative position of the arc head 14 and the support plate 13 remains unchanged. Then, under the action of the support plate 13, the arc head 14, the rectangular tube 5, the spring 18, the connecting rod 6 and other components, the position of the brush 2 remains unchanged, thereby achieving the purpose of adjusting the outer diameter of the structure formed by the three brushes 2 according to the inner diameter of the pipeline, being suitable for cleaning pipelines with different inner diameters, and expanding the scope of application.
[0027] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A variable diameter pipe cleaning brush, comprising a barrel (1), characterized in that: Three arc-shaped brushes (2) are arranged on the outside of the cylinder (1); a connector with adjustable length is installed between the brushes (2) and the cylinder (1); a support plate (13) arranged along the radial direction of the cylinder (1) is installed on the inner surface of the brush (2); a disc (11) located between the three brushes (2) is arranged at one end of the cylinder (1); arc heads (14) matching with the support plate (13) are fixed at equal intervals in an annular shape on the annular side surface of the disc (11); the arc heads (14) are arranged along the tangential direction of the disc (11); one end of the support plate (13) away from the brushes (2) is in contact with the arc head (14); and the disc (11) is connected to the cylinder (1) via a stopper.
2. A variable diameter pipe cleaning brush according to claim 1, characterized in that: The connector comprises a rectangular tube (5), and three rectangular tubes (5) are installed in an annular shape and at equal intervals on the outer surface of one end of the cylinder (1) close to the brush (2). The rectangular tubes (5) are arranged along the radial direction of the cylinder (1), and an end cover (15) is connected and fixed to the end of the rectangular tube (5) away from the cylinder (1). A guide hole is opened in the middle of one side of the end cover (15), and a connecting rod (6) is inserted in the guide hole. The end of the connecting rod (6) in the rectangular tube (5) is connected to the end of the connecting rod (6) A rectangular block (19) is fixedly connected and slidably mounted in the rectangular tube (5); a spring (18) is arranged between the rectangular block (19) and the end cover (15); the spring (18) is sleeved on the connecting rod (6); a through hole (22) is provided at the contact position between the brush (2) and the connecting rod (6); a connecting screw (4) threadedly connected to the connecting rod (6) is inserted in the through hole (22); and a plug-in component is installed between the connecting rod (6) and the brush (2).
3. A variable diameter pipe cleaning brush according to claim 2, characterized in that: The plug-in connector comprises an L-shaped rod (7), one end of the connecting rod (6) located outside the rectangular tube (5) is connected and fixed with two symmetrically arranged L-shaped rods (7), the inner surface of the brush (2) is provided with two positioning holes (25) matched with the L-shaped rods (7), and one end of the L-shaped rod (7) away from the connecting rod (6) is inserted into the positioning hole (25).
4. The variable diameter pipe cleaning brush according to claim 1, characterized in that: The limiting member comprises a shaft (26), a side of the disk (11) facing the cylinder (1) is connected and fixed with the shaft (26) at a middle position, the shaft (26) is inserted in the cylinder (1), a rotating ring (23) is sleeved at a middle position of the shaft (26), both sides of the rotating ring (23) along the length direction of the shaft (26) are provided with limiting rings (24), the limiting rings (24) are sleeved on the shaft (26) and are connected and fixed to the shaft (26), the limiting rings (24) are in sliding contact with the rotating ring (23), a plurality of blind holes (20) are provided on an outer surface of the rotating ring (23), a plurality of first screw threads aligned with the blind holes (20) are provided at a middle position of an outer surface of the cylinder (1), and the first screw threads (23) are provided at a middle position of an outer surface of the cylinder (1). A hole (16) is provided in the cylinder body (1). The first screw hole (16) is internally threadedly connected to a positioning screw (3). One end of the positioning screw (3) extends into the blind hole (20). The end of the shaft rod (26) away from the disc (11) is connected and fixed to an end disc (10). The end disc (10) is inserted into the cylinder body (1). The outer surface of the end of the cylinder body (1) away from the disc (11) is provided with a plurality of second screw holes (17) equidistantly arranged in an annular shape. The second screw holes (17) are internally threadedly connected to a clamping screw (8) for limiting the relative position of the end disc (10) and the cylinder body (1). A hexagonal hole (12) for inserting an hexagonal wrench is provided in the middle of one side of the disc (11) away from the shaft rod (26).
5. The variable diameter pipe cleaning brush according to claim 1, characterized in that: A flange ring (9) is connected and fixed to one end of the cylinder (1) away from the disc (11), and a plurality of fixing holes for inserting bolts are equidistantly provided in an annular shape on one side of the flange ring (9).
6. The variable diameter pipe cleaning brush according to claim 1, characterized in that: The middle part of one side of the inner surface of the brush (2) is recessed to form a strip groove (21), one end of the support plate (13) is installed in the strip groove (21), and the side of the support plate (13) away from the brush (2) is an arc surface.