Simulation test device for dredging pipeline blockages

Abstract

The invention discloses a simulation test device for dredging pipeline blockages, which comprises an upper rack, a lower rack and a flexible shaft, the flexible shaft comprises a steel wire axis, a hose and a tool bit fixedly connected with the front end of the steel wire axis, the upper rack is detachably connected with the lower rack, a flexible shaft clamping mechanism is arranged on the upper rack and is used for clamping and guiding the hose, and the flexible shaft clamping mechanism is arranged on the lower rack and is used for clamping and guiding the hose. A flexible shaft limiting mechanism is installed on the lower rack and used for limiting the end, close to the tool bit, of the hose. A flexible shaft guiding mechanism is installed above the flexible shaft clamping mechanism on the upper rack and used for guiding a flexible shaft, and a concrete block clamping mechanism is installed at the bottom of the lower rack and used for clamping a concrete block. According to the invention, guidance can be provided for continuous feeding of the flexible shaft, the flexible shaft can be clamped and limited, on the basis of simulating dredging of pipeline blockages, the flexible shaft is prevented from twisting and swinging, the service life of the flexible shaft is prolonged, an independent feeding mechanism does not need to be arranged, the structure is simplified, and the cost is saved.

Description

Technical Field

[0001] This invention relates to the field of industrial pipeline unblocking technology, specifically a simulation test device for unblocking pipeline blockages. Background Technology

[0002] Industrial pipeline dredging is a specialized and important field, related to the normal operation, safety, and environmental protection of factories. Compared with household pipeline dredging, industrial pipelines are characterized by larger diameters, higher pressures, more complex media, more specific blockages, and stronger system interconnections.

[0003] In the field of industrial pipeline dredging, different dredging methods are used for different types of blockages, such as high-pressure water jet cleaning, mechanical dredging, and chemical cleaning. Among them, mechanical dredging is mainly suitable for hard blockages (hard scale) or fibrous entanglements. This method uses a flexible shaft (also known as a flexible shaft) with different cutting heads (such as spring drills, cutting heads, and rake heads) at the front end. The flexible shaft is driven by a motor to rotate, thereby breaking up, hooking out, or pushing away the blockage in the pipeline.

[0004] To test whether a cutting head is suitable for unblocking blockages in pipes, a simulation test is often required. This involves using a hard concrete block to simulate the blockage in the pipe and cutting the concrete block with the cutting head. If the cutting head can cut the concrete block smoothly and continuously, it indicates that the cutting head is suitable for unblocking blockages in pipes.

[0005] During operation, the flexible shaft, directly driven by the motor, lacks effective and reliable clamping and support. As the simulation test continues, the flexible shaft is continuously fed into the pipeline. Therefore, affected by the vibration generated when the cutter head cuts the concrete block, the flexible shaft will twist and wobble, which will not only affect the normal simulation test but also shorten the service life of the flexible shaft. In addition, to achieve the feeding of the flexible shaft, a separate feeding mechanism is often required, such as a screw-nut feeding mechanism or a gear-rack feeding mechanism, which obviously makes the entire device or system more complex and increases additional costs. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects and deficiencies of the existing technology and provide a simulation test device for unblocking pipes. This device can guide the continuous feeding of the flexible shaft and also clamp and limit the flexible shaft. In this way, while simulating the unblocking of pipes, it can avoid the twisting and swaying of the flexible shaft, improve the service life of the flexible shaft, and eliminate the need for a separate feeding mechanism, thereby simplifying the structure and saving costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A simulation test device for unblocking pipe blockages includes an upper frame, a lower frame, and a flexible shaft. The flexible shaft includes a steel wire shaft, a flexible hose, and a cutter head fixedly connected to the front end of the steel wire shaft. The upper and lower frames are detachably connected. A flexible shaft clamping mechanism is installed on the upper frame for clamping and guiding the flexible hose. A flexible shaft limiting mechanism is installed on the lower frame for limiting one end of the flexible hose near the cutter head. A flexible shaft guiding mechanism is installed on the upper frame above the flexible shaft clamping mechanism for guiding the flexible shaft. A concrete block clamping mechanism is installed at the bottom of the lower frame for clamping concrete blocks.

[0008] Furthermore, the flexible shaft clamping mechanism includes two upright plates and several clamping components. The two upright plates are arranged face-to-face and parallel to each other and are fixedly connected to the upper frame. The several clamping components are installed between the two upright plates from top to bottom. Each clamping component includes two clamping wheels for clamping the flexible hose. The relative distance between the two clamping wheels is adjustable.

[0009] Furthermore, the two clamping wheels are respectively mounted on the C-shaped mounting base. The outer side of the C-shaped mounting base is rotatably connected to a transverse screw. The free ends of the two transverse screws respectively pass through the two upright plates and are installed on the corresponding upright plates by threaded engagement. The inner side of each upright plate is fixedly connected to transverse guide rods on both sides of the transverse screws. The C-shaped mounting base is installed between the two transverse guide rods by sliding engagement.

[0010] Furthermore, an H-shaped bracket is fixedly connected to the lower platform, and the crossbeam of the H-shaped bracket is provided with a number of screw holes along its length.

[0011] Furthermore, the flexible shaft limiting mechanism includes an inverted chamfered limiting block, which is slidably mounted on the crossbeam of the H-shaped bracket. A locking bolt is screwed into a screw hole located inside the inverted chamfered limiting block to fix the inverted chamfered limiting block to the crossbeam of the H-shaped bracket. One end of the flexible hose near the cutter head passes through the inverted chamfered limiting block from top to bottom and abuts against the inner wall of the inverted chamfered limiting block.

[0012] Furthermore, an extension frame is fixedly connected to one side of the upper end of the upper platform.

[0013] Furthermore, the flexible shaft guiding mechanism includes an arc-shaped track, several guide wheels, and a limiting wheel. The arc-shaped track is fixedly connected to the extension frame. The front end of the arc-shaped track extends above the flexible shaft clamping mechanism, and the rear end of the arc-shaped track extends laterally to the outside of the extension frame. The several guide wheels are installed at intervals along the length of the arc-shaped track. The limiting wheel is installed at the rear end of the arc-shaped track through a mounting bracket and is located above the last guide wheel, for limiting the flexible hose extending from there.

[0014] Furthermore, the concrete block clamping mechanism includes two side guide rails, a first clamping block, a second clamping block, a first transverse lead screw, and a second transverse lead screw. The two side guide rails are fixedly connected to the bottom of the lower platform along the width direction of the lower platform. The first clamping block and the second clamping block are arranged parallel to each other and are respectively installed between the two side guide rails through a sliding fit to clamp the concrete block. Mounting seats are fixedly connected to both ends of the two side guide rails. The first transverse lead screw and the second transverse lead screw are respectively installed on the mounting seats at both ends through a threaded fit. One end of the first transverse lead screw and the second transverse lead screw are respectively rotatably connected to the back of the first clamping block and the second clamping block, and the other end of the first transverse lead screw and the second transverse lead screw are respectively fixedly connected to a handle.

[0015] Furthermore, a counterweight is fixedly fitted onto the outside of the hose at one end near the cutter head.

[0016] Furthermore, the bottom of the lower platform is equipped with casters.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses upper and lower frames as the main support structure, employs a flexible shaft clamping mechanism to clamp and guide the flexible hose, a flexible shaft limiting mechanism to limit one end of the hose near the cutter head, and a flexible shaft guiding mechanism to guide and limit the flexible hose. This not only guides the continuous feed of the flexible shaft but also clamps and limits it. While simulating the unblocking of pipes, this invention avoids twisting and swaying of the flexible shaft, improving its service life. Furthermore, it eliminates the need for a separate feeding mechanism, simplifying the structure and saving costs.

[0018] 2. The upper and lower frames used in this invention are of a split structure, which can be detached and connected, making them easy to carry and convenient and quick to assemble on site. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the upper frame and extension frame, as well as the upper flexible shaft clamping mechanism and flexible shaft guiding mechanism in this invention.

[0021] Figure 3 for Figure 2 A partial structural diagram.

[0022] Figure 4 This is a schematic diagram of the structure of the lower platform and the concrete block clamping mechanism on it in this invention.

[0023] Figure 5 for Figure 4 A partial structural diagram.

[0024] Figure 6 This is a schematic diagram of the structure of the H-shaped bracket and its upper flexible shaft limiting mechanism in this invention.

[0025] Figure 7 for Figure 6 A partial structural diagram.

[0026] Figure 8 This is a schematic diagram of the flexible shaft in this invention.

[0027] Figure 9 for Figure 8 A partial structural diagram. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] See Figure 1-9 A simulation test device for unblocking pipe blockages includes an upper frame 1, a lower frame 2, and a flexible shaft 3. The flexible shaft 3 includes a steel wire shaft 31, a flexible hose 32, and a cutter head 33 fixedly connected to the front end of the steel wire shaft 31. The upper frame 1 and the lower frame 2 are detachably connected. A flexible shaft clamping mechanism 4 is installed on the upper frame 1 for clamping and guiding the flexible hose 32. A flexible shaft limiting mechanism 5 is installed on the lower frame 2 for limiting one end of the flexible hose 32 near the cutter head 33. A flexible shaft guiding mechanism 6 is installed on the upper frame 1 above the flexible shaft clamping mechanism 4 for guiding the flexible shaft 3. A concrete block clamping mechanism 7 is installed at the bottom of the lower frame 2 for clamping a concrete block 8.

[0030] In this invention, the flexible shaft clamping mechanism 4 includes two upright plates 41 and at least three clamping components. The two upright plates 41 are arranged in parallel facing each other and are fixedly connected to the upper frame 1. The three clamping components are installed between the two upright plates 41 from top to bottom. Each clamping component includes two clamping wheels 42 for clamping the flexible hose 32. The relative distance between the two clamping wheels 42 is adjustable.

[0031] Specifically, two clamping wheels 42 are respectively mounted on a C-shaped mounting base 43. A transverse screw 44 is rotatably connected to the outer side of the C-shaped mounting base 43. The free ends of the two transverse screws 44 pass through the two vertical plates 41 respectively and are installed on the corresponding vertical plates 41 by threaded engagement. A transverse guide rod 45 is fixedly connected to both sides of the transverse screw 44 on the inner side of each vertical plate 41. The C-shaped mounting base 43 is installed between the two transverse guide rods 45 by sliding engagement.

[0032] Therefore, by rotating the transverse screws 44 on both sides, the two opposite I-shaped mounting seats 43 move closer to each other along the corresponding two transverse guide rods 45, and the two clamping wheels 42 move closer to each other, thereby clamping the hose 32; conversely, by rotating the transverse screws 44 on both sides in the opposite direction, the two opposite I-shaped mounting seats 43 move away from each other along the corresponding two transverse guide rods 45, and the two clamping wheels 42 move away from each other, thereby releasing the clamping of the hose 32, and the flexible shaft 3 can be pulled out from one side.

[0033] In this invention, an H-shaped bracket 15 is fixedly connected to the lower frame 2, and a number of screw holes 9 are provided on the crossbeam of the H-shaped bracket 15 along its length.

[0034] In this invention, the flexible shaft limiting mechanism 5 includes an inverted chamfered limiting block 51, which is slidably mounted on the crossbeam of the H-shaped bracket 15. A locking bolt (not shown in the figure) is screwed into a screw hole 9 located inside the inverted chamfered limiting block 51 to fix the inverted chamfered limiting block 51 to the crossbeam of the H-shaped bracket 15. One end of the flexible hose 32 near the cutter head 33 passes through the inverted chamfered limiting block 51 from top to bottom and abuts against the inner wall of the inverted chamfered limiting block 51.

[0035] Specifically, after screwing the locking bolt into a screw hole 9 inside the C-shaped limiting block 51, the nut end of the locking bolt presses against the upper surface of the C-shaped limiting block 51. Alternatively, a locking nut is screwed onto the upper end of the locking bolt and then tightened to press it against the upper surface of the C-shaped limiting block 51, thereby fixing the C-shaped limiting block 51 to the crossbeam of the H-shaped bracket 15.

[0036] In this invention, an extension frame 10 is fixedly connected to one side of the upper end of the upper platform 1.

[0037] In this invention, the flexible shaft guiding mechanism 6 includes an arc-shaped track 61, at least four guide wheels 62, and a limiting wheel 63. The arc-shaped track 61 is fixedly connected to the extension frame 10. The front end of the arc-shaped track 61 extends above the flexible shaft clamping mechanism 4, and the rear end of the arc-shaped track 61 extends laterally to the outside of the extension frame 10. The four guide wheels 62 are installed at intervals along the length direction of the arc-shaped track 61. The limiting wheel 63 is installed at the rear end of the arc-shaped track 61 through the mounting frame 11 and is located above the last guide wheel 62, for limiting the flexible hose 32 extending from it.

[0038] In this invention, the concrete block clamping mechanism 7 includes two side guide rails 71, a first clamping block 72, a second clamping block 73, a first transverse screw 74, and a second transverse screw 75. The two side guide rails 71 are fixedly connected to the bottom of the lower platform 2 along the width direction of the lower platform 2. The first clamping block 72 and the second clamping block 73 are arranged in parallel facing each other and are respectively installed between the two side guide rails 71 through sliding fit to clamp the concrete block 8. The two ends of the two side guide rails 71 are respectively fixedly connected to the mounting bases 12. The first transverse screw 74 and the second transverse screw 75 are respectively installed on the mounting bases 12 at both ends through threaded fit. One end of the first transverse screw 74 and the second transverse screw 75 is respectively rotatably connected to the back of the first clamping block 72 and the second clamping block 73. The other end of the first transverse screw 74 and the second transverse screw 75 is respectively fixedly connected to the handle 76.

[0039] Therefore, by rotating the first transverse lead screw 74 and the second transverse lead screw 75 by the handle 76, the first clamping block 72 and the second clamping block 73 are pushed to move towards each other along the two side guide rails 71, thereby clamping the concrete block 8; conversely, by rotating the first transverse lead screw 74 and the second transverse lead screw 75 in the opposite direction by the handle 76, the first clamping block 72 and the second clamping block 73 are pulled to move away from each other along the two side guide rails 71, thereby releasing the clamping of the concrete block 8, and the concrete block 8 can be taken out.

[0040] In this invention, a counterweight 13 is fixedly fitted onto the outside of the flexible hose 32 at one end near the cutter head 33. Thus, under the gravity of the counterweight 13, continuous feeding of the flexible shaft 3 is achieved.

[0041] In this invention, the bottom of the lower frame 2 is equipped with casters (with brake function) 14, which facilitates the movement of the entire pipe cleaning platform according to the needs of the site.

[0042] The present invention will be further described below with reference to the accompanying drawings: During installation, first bring the upper frame 1 and the lower frame 2 to the work site and connect the upper frame 1 and the lower frame 2.

[0043] Next, place the concrete block 8 on the two side guide rails 71. Rotate the first horizontal screw 74 and the second horizontal screw 75 by the handle 76 to push the first clamp 72 and the second clamp 73 to move towards each other along the two side guide rails 71, thereby clamping the concrete block 8 to simulate the blockage in the pipe.

[0044] Then, place one end of the hose 32 near the cutter head 33 between the two clamping wheels 42 that are far apart from each other, and then rotate the transverse screws 44 on both sides so that the two opposite C-shaped mounting seats 43 move closer to each other along the corresponding two transverse guide rods 45, and the two clamping wheels 42 move closer to each other, thereby clamping the hose 32.

[0045] Then, move the C-shaped limiting block 51 along the crossbeam of the H-shaped bracket 15 so that it is directly below the flexible shaft clamping mechanism 4. Then insert the flexible hose 32 into the inside of the C-shaped limiting block 51 from the open end, so that the flexible hose 32 is against the inner wall of the C-shaped limiting block 51 and thus is limited inside the C-shaped limiting block 51. Then screw the locking bolt into a screw hole 9 inside the C-shaped limiting block 51 so that the nut end of the locking bolt is pressed against the upper surface of the C-shaped limiting block 51. Alternatively, screw a locking nut on the upper end of the locking bolt and then tighten the locking nut so that it is pressed against the upper surface of the C-shaped limiting block 51, thereby fixing the C-shaped limiting block 51 to the crossbeam of the H-shaped bracket 15.

[0046] At this point, the cutter head 33 presses against the hard blockage (hard deposit) inside the concrete block 8.

[0047] Then, the other end of the hose 32 is led out from the inside out along the four guide wheels 62, and then through the limit wheel 63 and the corresponding guide wheel 62. The steel wire shaft 31 is then connected to the drive motor for transmission according to existing technical means.

[0048] During the simulation test of clearing blockages in the pipe, the drive motor drives the steel wire shaft 31 to rotate, which in turn drives the cutter head 33 to rotate and cut the concrete block 8.

[0049] Under the gravity of the counterweight 13, the flexible shaft 3 is continuously fed to achieve continuous cutting of the concrete block 8.

[0050] During this process, the flexible shaft clamping mechanism 4 can clamp and guide the flexible hose 32, and the flexible shaft limiting mechanism 5 can limit one end of the flexible hose 32 near the cutter head 33 without affecting the continuous feeding of the flexible shaft 3. The flexible shaft guiding mechanism 6 can guide and limit the flexible hose 32. Therefore, it can both guide the continuous feeding of the flexible shaft 3 and clamp and limit the flexible shaft 3. Thus, while simulating the unblocking of pipe blockages, it can avoid the flexible shaft 3 from twisting and swaying due to the vibration generated by the cutter head 33 cutting the concrete block 8, thereby improving the service life of the flexible shaft 3. Furthermore, it eliminates the need for a separate feeding mechanism, thus simplifying the structure and saving costs.

[0051] By observing the process of the cutter head 33 cutting the concrete block 8, if the cutter head 33 can cut the concrete block 8 smoothly and continuously, it indicates that the cutter head 33 is suitable for unblocking blockages in pipes.

[0052] After the simulation test is completed, first pull the hose 32 upward to drive the cutter head 33 to detach from the concrete block 8. Then, rotate the horizontal screw 1 74 and the horizontal screw 2 75 in the opposite direction through the handle 76 to pull the clamping block 1 72 and the clamping block 2 73 to move in opposite directions along the two side guide rails 71, thereby releasing the clamping of the concrete block 8 and allowing the concrete block 8 to be removed.

[0053] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0054] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A simulation test device for unblocking pipes, comprising an upper frame, a lower frame, and a flexible shaft, wherein the flexible shaft comprises a steel wire shaft, a flexible hose, and a cutter head fixedly connected to the front end of the steel wire shaft, characterized in that: The upper and lower frames are detachably connected. A flexible shaft clamping mechanism is installed on the upper frame to clamp the flexible tube, and a flexible shaft limiting mechanism is installed on the lower frame to limit one end of the flexible tube near the cutter head. A flexible shaft guiding mechanism is installed on the upper frame above the flexible shaft clamping mechanism to guide the flexible shaft, and a concrete block clamping mechanism is installed at the bottom of the lower frame to clamp the concrete block.

2. The simulation test device for unblocking pipes according to claim 1, characterized in that: The flexible shaft clamping mechanism includes two upright plates and several clamping components. The two upright plates are arranged face to face and parallel to each other and are fixedly connected to the upper frame. The several clamping components are installed between the two upright plates from top to bottom. Each clamping component includes two clamping wheels for clamping the flexible hose. The relative distance between the two clamping wheels is adjustable.

3. The simulation test device for unblocking pipes according to claim 2, characterized in that: The two clamping wheels are respectively mounted on the C-shaped mounting base. The outer side of the C-shaped mounting base is rotatably connected to a transverse screw. The free ends of the two transverse screws respectively pass through the two vertical plates and are installed on the corresponding vertical plates by threaded engagement. The inner side of each vertical plate is fixedly connected to transverse guide rods on both sides of the transverse screws. The C-shaped mounting base is installed between the two transverse guide rods by sliding engagement.

4. The simulation test device for unblocking pipes according to claim 1, characterized in that: An H-shaped bracket is fixedly connected to the lower platform, and several screw holes are provided on the crossbeam of the H-shaped bracket along its length.

5. A simulation test device for unblocking pipes according to claim 4, characterized in that: The flexible shaft limiting mechanism includes an inverted chamfered limiting block, which is slidably mounted on the crossbeam of the H-shaped bracket. A locking bolt is screwed into a screw hole inside the inverted chamfered limiting block to fix the inverted chamfered limiting block to the crossbeam of the H-shaped bracket. One end of the flexible hose near the cutter head passes through the inverted chamfered limiting block from top to bottom and abuts against the inner wall of the inverted chamfered limiting block.

6. The simulation test device for unblocking pipes according to claim 1, characterized in that: An extension frame is fixedly connected to one side of the upper end of the upper platform.

7. A simulation test device for unblocking pipes according to claim 6, characterized in that: The flexible shaft guiding mechanism includes an arc-shaped track, several guide wheels, and a limiting wheel. The arc-shaped track is fixedly connected to the extension frame. The front end of the arc-shaped track extends above the flexible shaft clamping mechanism, and the rear end of the arc-shaped track extends laterally to the outside of the extension frame. The several guide wheels are installed at intervals along the length of the arc-shaped track. The limiting wheel is installed at the rear end of the arc-shaped track through a mounting bracket and is located above the last guide wheel to limit the flexible hose extending from it.

8. The simulation test device for unblocking pipes according to claim 1, characterized in that: The concrete block clamping mechanism includes two side guide rails, a first clamping block, a second clamping block, a first transverse lead screw, and a second transverse lead screw. The two side guide rails are fixedly connected to the bottom of the lower platform along the width direction of the lower platform. The first clamping block and the second clamping block are arranged parallel to each other and are respectively installed between the two side guide rails by sliding fit to clamp the concrete block. Mounting seats are fixedly connected to both ends of the two side guide rails. The first transverse lead screw and the second transverse lead screw are respectively installed on the mounting seats at both ends by threaded fit. One end of the first transverse lead screw and the second transverse lead screw are respectively rotatably connected to the back of the first clamping block and the second clamping block. The other end of the first transverse lead screw and the second transverse lead screw are respectively fixedly connected to a handle.

9. A simulation test device for unblocking pipes according to claim 1, characterized in that: A counterweight is fixedly fitted onto the outside of the hose at one end near the cutter head.

10. A simulation test device for unblocking pipes according to claim 1, characterized in that: The bottom of the lower platform is equipped with casters.

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