Portable dry ice supply device for pipeline cleaning robot
By designing a tapered folding feed pipe and connecting components, the problem of insufficient impact force from dry ice fragments is solved, enabling efficient cleaning and easy replacement of dry ice storage cylinders, thus improving the cleaning effect and operational efficiency of the pipeline cleaning robot.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建巨联环境科技股份有限公司
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
Existing dry ice replenishment devices for pipeline cleaning robots have insufficient impact force from dry ice fragments when dealing with thick oil stains, resulting in incomplete cleaning. Furthermore, changing the dry ice storage tank is cumbersome and affects work efficiency.
Using a conical folded conveying pipe and connecting components, dry ice fragments are transported at high speed into the pipe through negative pressure suction, and the dry ice storage cylinder and conveying pipe can be quickly connected and separated through simplified installation components.
It increases the impact force of dry ice fragments, ensuring cleaning effectiveness, simplifies the dry ice storage cylinder replacement process, and improves work efficiency.
Smart Images
Figure CN224208738U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning auxiliary device technology, and in particular to a dry ice supply device for a portable pipeline cleaning robot. Background Technology
[0002] For kitchen exhaust ducts in restaurants, commercially available duct cleaning machines use dry ice as a cleaning agent. Dry ice is sprayed onto the inner wall of the duct, where it quickly and completely vaporizes upon contact, causing dirt to detach and fall off the duct. However, these machines require frequent replenishment of the dry ice supply. Existing replenishment systems have the following problems:
[0003] 1. The existing supply device simply connects the cleaning machine and the supply box through a cylindrical pipe, and then uses a conveyor motor to suck the dry ice fragments in the supply box into the cleaning machine. Because the above supply device relies solely on the conveyor motor to create negative pressure in the conveying pipe to achieve the effect of sucking dry ice, the dry ice fragments discharged from the discharge end have insufficient impact force. The dry ice fragments can only adhere superficially to the surface of the oil stains in the pipe. When facing pipes with thick oil stains, it cannot achieve the effect of flushing into the oil stains and removing the oil stains from the inside out of the pipe wall, resulting in incomplete cleaning.
[0004] 2. The existing supply system is cumbersome and inefficient when replacing the dry ice storage bins, which seriously affects work efficiency. Utility Model Content
[0005] To address the aforementioned problems, the present invention aims to provide a portable dry ice supply device for a pipe cleaning robot, which aims to maximize the impact force of dry ice fragments entering the cleaning machine.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A portable pipe cleaning robot dry ice supply device includes a conveying ring plate detachably connected to the dry ice feed end of the cleaning machine by bolts, a feed ring plate disposed below the conveying ring plate, an elastic conical folding conveying pipe fixed between the conveying ring plate and the feed ring plate, a dry ice storage cylinder disposed below the feed ring plate with its opening facing upwards, a sealing cover detachably disposed at the opening of the dry ice storage cylinder, an installation component disposed between the sealing cover and the feed ring plate for fixing the sealing cover to the lower side of the feed ring plate, and a communication component disposed between the sealing cover and the feed ring plate for connecting the conical folding conveying pipe and the dry ice storage cylinder.
[0008] The tapered folded conveying pipe with the smallest diameter end is fixedly connected to the lower side of the conveying ring plate;
[0009] The connecting component includes an insertion sleeve disposed inside the feed ring plate and extending to the lower side of the feed ring plate along the upper and lower thickness direction of the feed ring plate, a number of support rods arranged at intervals along the circumference and fixed between the inner wall of the feed ring plate and the outer wall of the insertion sleeve, a number of feeding holes arranged at intervals along the circumference on the lower side wall of the insertion sleeve, a discharge hole disposed on the sealing cover along the upper and lower height direction of the dry ice storage cylinder, and a number of elastic sealing valve flaps arranged at intervals along the circumference and fixed on the inner wall of the discharge hole.
[0010] Each of the aforementioned elastic sealing valve discs has its free end tilted toward the lower end of the dry ice storage cylinder.
[0011] More preferably, the lower end of the insertion sleeve is provided with an arc end.
[0012] More preferably, the installation assembly includes an alignment track fixed to the sealing cover with its opening facing upwards, a connecting sleeve fixed below the feed ring plate with its lower part embedded in the alignment track, an annular groove between the alignment track and the sealing cover, a pair of rotating buckles respectively rotatable along the vertical height direction of the connecting sleeve on opposite sides of the outer wall of the connecting sleeve with their lower ends embedded in the annular groove, and a pair of thrust springs corresponding to each rotating buckle and fixed between the outer wall of the connecting sleeve and the rotating shaft of the corresponding rotating buckle near the side of the connecting sleeve.
[0013] More preferably, an elastic seal is fixed on the inner wall of the alignment track.
[0014] More preferably, the lower part of the sealing cap is threadedly connected to the opening of the dry ice storage cylinder.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model uses a conical folding conveying pipe so that, under the same air pressure, the material enters the upper narrow pipe from the lower pipe with a larger diameter. As the diameter decreases, the pressure increases, which accelerates the material when it passes the upper narrow pipe. This allows the material to enter the cleaning machine at high speed, and the dry ice fragments are then pushed out of the cleaning machine's outlet with a certain acceleration effect.
[0017] 2. This utility model uses a connecting component to allow dry ice fragments to enter the larger diameter pipe at the bottom of the conical folded conveying pipe from the feed hole of the inserted sleeve, thereby achieving the effect of quickly sucking out the fragments from the dry ice storage cylinder at low pressure.
[0018] 3. This utility model presses the feed ring plate down onto the dry ice storage cylinder, and fixes the feed ring plate onto the dry ice storage cylinder through the installation component, so that the insertion sleeve is inserted into the dry ice storage cylinder, thereby connecting the dry ice storage cylinder and the conical folding conveyor cylinder. Without any extra operations, the conical folding conveyor pipe can be connected and fixed to the dry ice storage cylinder, achieving the effect of quickly replacing and installing the dry ice storage cylinder. Attached Figure Description
[0019] Figure 1 This is an overall exploded view of the present invention;
[0020] Figure 2 This is an overall axonometric view of the present invention;
[0021] Figure 3 This is an overall vertical sectional view of the present invention;
[0022] Figure 4 This is a magnified view of part A of the present invention.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Feeding ring plate; 2. Feeding ring plate; 3. Conical folding feed pipe; 4. Dry ice storage cylinder; 5. Sealing cap; 6. Mounting assembly; 61. Alignment track; 62. Connecting sleeve; 63. Annular groove; 64. Rotating buckle; 65. Thrust spring; 7. Connecting assembly; 71. Insertion sleeve; 72. Support rod; 73. Feeding hole; 74. Discharge hole; 75. Elastic sealing valve; 8. Elastic seal. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the portable pipe cleaning robot dry ice supply device of this embodiment includes a conveying ring plate 1 detachably connected to the dry ice feeding end of the cleaning machine by bolts, a feeding ring plate 2 disposed below the conveying ring plate 1, an elastic conical folding conveying pipe 3 fixed between the conveying ring plate 1 and the feeding ring plate 2, a dry ice storage cylinder 4 disposed below the feeding ring plate 2 with its opening facing upwards, a sealing cover 5 detachably disposed at the opening of the dry ice storage cylinder 4, an installation assembly 6 disposed between the sealing cover 5 and the feeding ring plate 2 for fixing the sealing cover 5 to the lower side of the feeding ring plate 2, and a communication assembly 7 disposed between the sealing cover 5 and the feeding ring plate 2 for connecting the conical folding conveying pipe 3 and the dry ice storage cylinder 4.
[0027] The smallest diameter end of the tapered folded conveyor pipe 3 is fixedly connected to the lower side of the conveyor ring plate 1;
[0028] The connecting component 7 includes an insertion sleeve 71 disposed inside the feeding ring plate 2 and extending out of the lower side of the feeding ring plate 2 along the vertical thickness direction of the feeding ring plate 2; a plurality of support rods 72 arranged circumferentially and fixed between the inner wall of the feeding ring plate 2 and the outer wall of the insertion sleeve 71; a plurality of feeding holes 73 arranged circumferentially and fixed on the lower side wall of the insertion sleeve 71; a discharge hole 74 disposed on the sealing cover 5 along the vertical height direction of the dry ice storage cylinder 4; and a plurality of elastic sealing valve flaps 75 arranged circumferentially and fixed on the inner wall of the discharge hole 74.
[0029] Each elastic sealing valve flap 75 is tilted towards the lower end of the dry ice storage cylinder 4 at its free end.
[0030] In use, the feeding ring plate 1 is bolted to the feed end of the cleaning machine, connecting and fixing the conical folded feeding tube 3 to the feeding tube of the cleaning robot. Then, the conical folded feeding tube 3 is stretched and unfolded along its length. After the dry ice storage cylinder 4 containing dry ice fragments is prepared, during the pressing down of the feeding ring plate 2, the lower end of the insertion sleeve 71 is inserted into the dry ice storage cylinder 4 from the free end of the center of each elastic sealing valve 75. The free ends of each elastic sealing valve 75 are pushed downwards, causing them to fit against the outer wall of the insertion sleeve 71. This allows the internal space of the dry ice storage cylinder 4 to communicate with the inside of the insertion sleeve 71 through the feeding hole 73. The dry ice conveying motor of the cleaning robot is then turned on. When activated, the conveying pipe inside the cleaning machine is under negative pressure, creating a negative pressure suction force within the conical folded conveying pipe 3. This negative pressure draws dry ice fragments from the dry ice storage cylinder 4 into the conical folded conveying pipe 3. The conveying path diameter gradually decreases, resulting in greater pressure at smaller diameter points. This causes the dry ice fragments to be accelerated during upward suction, propelling them into the conveying pipe at high speed and out of the output end. This ensures the dry ice fragments penetrate as deeply as possible into the center of the heavily soiled area. Furthermore, the conical folded conveying pipe 3 allows for easy folding and storage when not in use.
[0031] like Figure 1 and Figure 3 As shown, the lower end of the insertion sleeve 71 has an arc end.
[0032] When using this product, the rounded end prevents jamming or scratching during the insertion and removal of the dry ice storage cylinder 4 by the insertion sleeve 71.
[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4The installation assembly 6 shown includes an alignment track 61 fixed to the sealing cover 5 with its opening facing upwards, a connecting sleeve 62 fixed below the feed ring plate 2 with its lower part embedded in the alignment track 61, an annular groove 63 between the alignment track 61 and the sealing cover 5, a pair of rotating buckles 64 respectively rotatable along the vertical height direction of the connecting sleeve 62 on opposite sides of the outer wall of the connecting sleeve 62 with their lower ends embedded in the annular groove 63, and a pair of thrust springs 65 corresponding to each rotating buckle 64 and fixed between the outer wall of the connecting sleeve 62 and the rotating shaft of the corresponding rotating buckle 64 near the side of the connecting sleeve 62.
[0034] When using this product, after preparing the dry ice storage cylinder 4 containing dry ice fragments, align the connecting sleeve 62 with the alignment track 61, press the upper end of the rotating buckles 64 on both sides, and then press down on the feed ring plate 2. After embedding the lower part of the connecting sleeve 62 into the alignment track 61, release the rotating buckles 64. After pressing down to the bottom, the rotating buckles 64, under the action of the thrust spring 65, cause the lower end of the rotating buckles 64 to embed into the annular groove 63, thereby fixing the feed ring plate 2 and the dry ice storage cylinder 4 in a fixed connection.
[0035] like Figure 1 and Figure 3 As shown, an elastic seal 8 is fixed on the inner wall of the alignment track 61.
[0036] When using this product, after the connecting sleeve 62 is embedded in the alignment rail 61, the lower end of the connecting sleeve 62 is pressed down to fit the elastic seal 8 to prevent dry ice gas from flowing out of the gap and causing dry ice to overflow.
[0037] like Figure 1 and Figure 3 As shown, the lower part of the sealing cap 5 is threadedly connected to the opening of the dry ice storage cylinder 4.
[0038] When using this product, after completely drawing out all the dry ice in the dry ice storage cylinder 4, place the dry ice storage cylinder 4 in a low-temperature environment, rotate the sealing cap 5 to separate it from the dry ice storage cylinder 4, add dry ice fragments into the dry ice storage cylinder 4, and then install the sealing cap 5 on the dry ice storage cylinder 4 to achieve a sealing effect. Moreover, when the dry ice in the dry ice storage cylinder 4 is in a gaseous state, it causes the air pressure inside the dry ice storage cylinder 4 to increase, which applies an upward thrust to the free ends of each elastic sealing valve 75, thereby causing the free ends of the elastic sealing valve 75 to further abut and adhere to each other, achieving the effect of preventing dry ice from overflowing. At the same time, the dry ice storage cylinder 4 is made of heat-insulating material, thereby minimizing the chance of dry ice vaporization.
[0039] The working principle of this device is as follows:
[0040] Step 1: Fix the feeding ring plate 1 to the feeding end of the cleaning robot with bolts, so that the conical folded feeding tube 3 is connected and fixed to the feeding tube of the cleaning robot, and then stretch and unfold the conical folded feeding tube 3 along the length direction.
[0041] Step 2: After preparing the dry ice storage cylinder 4 containing dry ice fragments, align the connecting sleeve 62 with the alignment track 61, press down the upper end of the rotating buckles 64 on both sides, and then press down the feed ring plate 2. After embedding the lower part of the connecting sleeve 62 into the alignment track 61, release the rotating buckles 64. After pressing down to the bottom, the rotating buckles 64, under the action of the thrust spring 65, will embed the lower end of the rotating buckles 64 into the annular groove 63 to fix the feed ring plate 2 and the dry ice storage cylinder 4 in a fixed connection.
[0042] Step 3: Simultaneously, during the pressing down of the feed ring plate 2, the lower end of the insertion sleeve 71 is inserted into the dry ice storage cylinder 4 from the free end of the center of each elastic sealing valve 75, pushing the free ends of each elastic sealing valve 75 downwards so that the free ends of the elastic sealing valve 75 fit against the outer wall of the insertion sleeve 71, thereby making the internal space of the dry ice storage cylinder 4 and the inside of the insertion sleeve 71 connected through the feed hole 73.
[0043] Step 4: At this point, turn on the dry ice conveyor motor of the cleaning robot, so that the conveyor pipe inside the cleaning machine is in a negative pressure state, forming a negative pressure suction force inside the conical folded conveyor pipe 3. This causes the dry ice fragments to be drawn from the dry ice storage cylinder 4 into the conical folded conveyor pipe 3 under the action of negative pressure. The diameter of the conveying path gradually decreases, resulting in greater pressure at the smaller diameter position. This causes the dry ice fragments to be subjected to high pressure during the upward suction process, resulting in acceleration. This allows the dry ice fragments to rush into the conveyor pipe at a high speed and rush out from the output end of the conveyor pipe, so that the dry ice fragments can be pushed into the center of the heavily oiled interior as much as possible.
[0044] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A portable dry ice refueling device for a pipeline cleaning robot, characterized in that: The device includes a conveying ring plate (1) detachably connected to the dry ice feed end of the cleaning machine by bolts, a feed ring plate (2) located below the conveying ring plate (1), an elastic conical folding conveying pipe (3) fixed between the conveying ring plate (1) and the feed ring plate (2), a dry ice storage cylinder (4) located below the feed ring plate (2) with its opening facing upwards, a sealing cap (5) detachably located at the opening of the dry ice storage cylinder (4), an installation assembly (6) located between the sealing cap (5) and the feed ring plate (2) for fixing the sealing cap (5) to the lower side of the feed ring plate (2), and a communication assembly (7) located between the sealing cap (5) and the feed ring plate (2) for connecting the conical folding conveying pipe (3) and the dry ice storage cylinder (4). The tapered folded conveying pipe (3) with the smallest diameter end is fixedly connected to the lower side of the conveying ring plate (1); The connecting component (7) includes an insertion sleeve (71) located inside the feeding ring plate (2) and extending out of the lower side of the feeding ring plate (2) along the vertical thickness direction; a number of support rods (72) arranged circumferentially and fixed between the inner wall of the feeding ring plate (2) and the outer wall of the insertion sleeve (71); a number of feeding holes (73) arranged circumferentially and fixed on the lower side wall of the insertion sleeve (71); a discharge hole (74) arranged along the vertical height direction of the dry ice storage cylinder (4) on the sealing cover (5); and a number of elastic sealing valve discs (75) arranged circumferentially and fixed on the inner wall of the discharge hole (74). Each of the elastic sealing valve flaps (75) is inclined toward the lower end of the dry ice storage cylinder (4) at its free end.
2. The portable dry ice refueling device for a pipeline cleaning robot according to claim 1, characterized in that: The lower end of the insertion sleeve (71) is provided with an arc end.
3. The portable dry ice refueling device for a pipeline cleaning robot according to claim 2, characterized in that: The installation assembly (6) includes an alignment track (61) fixed on the sealing cover (5) with its opening facing upwards, a connecting sleeve (62) fixed below the feed ring plate (2) and embedded in the alignment track (61) at its lower part, an annular groove (63) between the alignment track (61) and the sealing cover (5), a pair of rotating buckles (64) respectively rotatable along the vertical height direction of the connecting sleeve (62) on opposite sides of the outer wall of the connecting sleeve (62) and embedded in the annular groove (63) at their lower ends, and a pair of thrust springs (65) corresponding to each rotating buckle (64) and fixed between the outer wall of the connecting sleeve (62) and the rotating shaft of the corresponding rotating buckle (64) on the side close to the connecting sleeve (62).
4. The portable dry ice refueling device for a pipeline cleaning robot according to claim 3, characterized in that: An elastic seal (8) is fixed on the inner wall of the alignment track (61).
5. The portable dry ice refueling device for a pipeline cleaning robot according to claim 1, characterized in that: The lower part of the sealing cap (5) is threadedly connected to the opening of the dry ice storage cylinder (4).