Pneumatic pipe cleaning anti-freezing device for electric road sweeper

Abstract

The utility model relates to the technical field of electric road sweeping vehicles, and provides a pneumatic pipe cleaning anti-freezing device for an electric road sweeping vehicle, which comprises a pneumatic pipe cleaning anti-freezing component, the pneumatic pipe cleaning anti-freezing component consists of a protective shell, a three-way ball valve and an air pipe, the three-way ball valve is mounted in the protective shell, and the air pipe is mounted in the protective shell. Two straight-through ports of the three-way ball valve are connected with the water tank and the water filter through pipelines respectively, one side of the water filter is connected with the water drainage ball valve through a pipeline, the top end of the water filter is connected with the water-cooled oil cooler through a pipeline, the water-cooled oil cooler is connected with the water pump through a pipeline, and the water pump is connected with the spray head through a pipeline. By means of the filtering structure and the filtering net, a high-pressure air source sprayed out of the air pipe can be filtered, the situation that dust and impurities block the pipeline is avoided, the first adjusting lead screw is rotated, the first sealing disc and the second sealing disc are separated, the filtering net is taken out of the groove, and the purpose of replacing the filtering net can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric road sweeper technology field especially relates to a kind of pneumatic pipe for electric road sweeper Anti-freezing device. BACKGROUND

[0002] With the continuous improvement of economic level, electric road sweeper has been widely used, electric road sweeper is a kind of road dust suction, sweeping, water spraying, garbage transportation combined automatic cleaning integrated machine, it is a new type of efficient cleaning equipment used in outdoor environment, water spraying component is more important component in electric road sweeper, in low temperature season, in order to let water spraying component not to cause structural damage due to icing, need to use pneumatic pipe Anti-freezing device to protect it.

[0003] Therefore, the patent with the authorization announcement No.CN2775128Y discloses a kind of pneumatic pipe Anti-freezing device.The utility model includes:water filter, water storage tank, water-cooled oil cooler, water pump, pipeline, nozzle, drain ball valve composition, it should also include air source connector, three-position three-way ball valve composition;Air source connector connects three-position three-way ball valve bypass port, and the two straight-through ports of three-position three-way ball valve are connected with pipeline respectively to connect water storage tank and water filter, air source connector is connected with high-pressure gas source, and high-pressure gas flow can drain the accumulated water in the water filter, water-cooled oil cooler and water pump connected by pipeline from drain ball valve and nozzle.It has the advantages of simple structure, convenient operation, can effectively drain accumulated water to ensure that water spraying device parts are not cracked due to icing and other structural damage, and is suitable for all-weather application of road sweeper, cleaning car and other sanitation operation vehicles.

[0004] The existing pneumatic pipe Anti-freezing device of electric road sweeper is not convenient for filtering high-pressure gas source sprayed by air pipe when in use, dust and impurities in high-pressure gas source can easily block the pipeline. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of pneumatic pipe Anti-freezing device for electric road sweeper to solve the defect that the existing pneumatic pipe Anti-freezing device for electric road sweeper is not convenient for filtering high-pressure gas source sprayed by air pipe.

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of pneumatic cleaning pipe anti-freezing device for electric road sweeper, including pneumatic cleaning pipe anti-freezing assembly, the pneumatic cleaning pipe anti-freezing assembly is by protection shell, three-way ball valve and air pipe composition, the three-way ball valve is installed in the inside of protection shell, two straight-through ports of the three-way ball valve are connected with water tank, water filter respectively by pipeline, the side of the water filter is connected with drain ball valve by pipeline, the top of the water filter is connected with water-cooled oil cooler by pipeline, the water-cooled oil cooler is connected with water pump by pipeline, the water pump is connected with spray head by pipeline, bypass port of the three-way ball valve is provided with air pipe, filter structure is arranged between air pipe and bypass port of three-way ball valve, filter structure can filter high-pressure gas source that air pipe sprays;

[0007] The filter structure includes a connecting pipe, a first sealing disc, a second sealing disc, a shaft sleeve, a first adjusting screw, a filter screen, a groove, a clamping groove and a clamping block, the second sealing disc is installed on one side of the protection shell, the first sealing disc is installed on one side of the second sealing disc, the connecting pipe is installed on the first sealing disc and the second sealing disc, the connecting pipe on the first sealing disc is connected with the air pipe, the connecting pipe on the second sealing disc is connected with the bypass port of the three-way ball valve, the groove is formed in the inner wall of the first sealing disc and the second sealing disc, the filter screen is installed in the groove, the shaft sleeve is installed on both ends of the second sealing disc, the first adjusting screw is installed between the shaft sleeve and the first sealing disc, the clamping block is uniformly installed on the inner side of the second sealing disc, and the clamping groove is uniformly formed in the inner side of the first sealing disc and matched with the clamping block.

[0008] The top of the inner part of the protection shell is provided with a fixing structure, the fixing structure can quickly fix the three-way ball valve in the inner part of the protection shell, and the four corners of the inner part of the protection shell are provided with heating structures, the heating structures can heat the three-way ball valve to avoid icing.

[0009] Preferably, the heating structure includes a temperature sensor, a bracket and a heating plate, the temperature sensor is installed on one end of one side of the inner part of the protection shell, the bracket is installed at the four corners of the inner part of the protection shell, and the heating plate is installed on the bracket.

[0010] Preferably, the output end of the temperature sensor is electrically connected with the input end of a single-chip microcomputer, and the output end of the single-chip microcomputer is electrically connected with the input end of the heating plate.

[0011] Preferably, one end of the first adjusting screw is inserted into the shaft sleeve and slidably connected with the shaft sleeve.

[0012] Preferably, the clamping block and the clamping groove form a clamping structure.

[0013] Preferably, the fixing structure comprises a second adjusting screw rod, a fixing frame, a first clamping block and a second clamping block, the fixing frame is installed at the top of the protective shell, the first clamping block and the second clamping block are installed at the two sides of the fixing frame respectively, and one end of the second clamping block is connected with the second adjusting screw rod through a rotating seat.

[0014] Preferably, the inner sides of the first clamping block and the second clamping block are both provided with anti-skid lines.

[0015] The pneumatic cleaning pipe anti-freezing device for the electric road sweeper has the advantages that:

[0016] The filter structure is provided, the filter screen can filter the high-pressure air source sprayed by the air pipe, the situation that the pipeline is blocked by dust and impurities is avoided, the first adjusting screw rod is rotated, the first sealing disc and the second sealing disc are separated, the filter screen is taken out from the groove, and the purpose of replacement can be achieved;

[0017] The heating structure is provided, the heating plate can heat the three-way ball valve in the low-temperature season, the situation that the three-way ball valve is frozen is avoided, the temperature sensor can detect the heating temperature, and the situation that the three-way ball valve is damaged by high temperature is avoided;

[0018] The fixing structure is provided, the three-way ball valve is placed in the fixing frame, the second adjusting screw rod is rotated, the second clamping block is moved, until the second clamping block and the first clamping block are in contact with the three-way ball valve, the purpose of quickly fixing the three-way ball valve is achieved, and the stability during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view sectional structure schematic diagram of the pneumatic cleaning pipe anti-freezing assembly of the utility model;

[0021] Figure 3 It is a front view sectional structure schematic diagram of the heating structure of the utility model;

[0022] Figure 4 It is a top view sectional structure schematic diagram of the filter structure of the utility model;

[0023] Figure 5 It is a side view structure schematic diagram of the fixing structure of the utility model.

[0024] The reference signs in the drawing are explained as follows: 1, water tank; 2, air force pipe antifreezing assembly; 21, protective shell; 22, three-way ball valve; 23, heating structure; 231, temperature sensor; 232, support; 233, heating plate; 24, filtering structure; 241, connecting pipe; 242, first sealing disc; 243, second sealing disc; 244, shaft sleeve; 245, first adjusting lead screw; 246, filter screen; 247, groove; 248, clamping groove; 249, clamping block; 25, air pipe; 26, fixing structure; 261, second adjusting lead screw; 262, fixing frame; 263, first clamping block; 264, second clamping block; 3, water filter; 4, water release ball valve; 5, spray head; 6, water pump; 7, pipeline; 8, water-cooled oil cooler. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides an air force pipe antifreezing device for an electric road sweeper, which comprises an air force pipe antifreezing assembly 2.

[0027] Referring to Figures 1-5 The air force pipe antifreezing assembly 2 is composed of a protective shell 21, a three-way ball valve 22 and an air pipe 25. The three-way ball valve 22 is installed inside the protective shell 21. Two straight-through ports of the three-way ball valve 22 are connected with the water tank 1 and the water filter 3 through the pipeline 7 respectively. One side of the water filter 3 is connected with the water release ball valve 4 through the pipeline 7. The top end of the water filter 3 is connected with the water-cooled oil cooler 8 through the pipeline 7. The water-cooled oil cooler 8 is connected with the water pump 6 through the pipeline 7. The water pump 6 is connected with the spray head 5 through the pipeline 7.

[0028] The bypass opening of the three-way ball valve 22 is provided with an air pipe 25, and a filter structure 24 is arranged between the bypass opening of the three-way ball valve 22 and the air pipe 25. The filter structure 24 comprises a connecting pipe 241, a first sealing disc 242, a second sealing disc 243, a shaft sleeve 244, a first adjusting lead screw 245, a filter screen 246, a groove 247, a clamping groove 248 and a clamping block 249. The second sealing disc 243 is installed on one side of the protective shell 21, and the first sealing disc 242 is installed on one side of the second sealing disc 243. The first sealing disc 242 and the second sealing disc 243 are both provided with the connecting pipe 241. The connecting pipe 241 on the first sealing disc 242 is connected with the air pipe 25, and the connecting pipe 241 on the second sealing disc 243 is connected with the bypass opening of the three-way ball valve 22. The inner walls of the first sealing disc 242 and the second sealing disc 243 are both provided with the groove 247, and the filter screen 246 is installed in the groove 247. The shaft sleeve 244 is installed at both ends of the second sealing disc 243, and the first adjusting lead screw 245 is installed between the shaft sleeve 244 and the first sealing disc 242. One end of the first adjusting lead screw 245 is inserted into the shaft sleeve 244 and connected with the shaft sleeve 244 in a sliding mode. The inner side of the second sealing disc 243 is uniformly provided with the clamping block 249, and the inner side of the first sealing disc 242 is uniformly provided with the clamping groove 248 matched with the clamping block 249. The clamping block 249 and the clamping groove 248 form a clamping structure, which can position the first sealing disc 242 and the second sealing disc 243 and enhance the stability of the connection between the first sealing disc 242 and the second sealing disc 243.

[0029] In the low temperature season, the air pipe 25 is connected with a high pressure gas source. The high pressure gas source can discharge the accumulated water in the water filter 3, the water-cooled oil cooler 8, the water pump 6 and the pipeline 7 from the spray head 5 and the drain ball valve 4, so as to prevent the water spraying components from being structurally damaged due to icing. The filter screen 246 can filter the high pressure gas source sprayed from the air pipe 25, so as to prevent the pipeline 7 from being blocked by dust and impurities. When the filter screen 246 needs to be replaced, the first adjusting lead screw 245 is rotated to separate the first sealing disc 242 and the second sealing disc 243, and the filter screen 246 is taken out of the groove 247, so that the filter screen 246 can be replaced.

[0030] Referring to FIGS. 1 to 3, Figure 2 and Figure 3 The inside of the protective shell 21 is provided with four heating structures 23 at four corners. The heating structure 23 comprises a temperature sensor 231, a support 232 and a heating plate 233. The temperature sensor 231 is installed at one end of one side of the inside of the protective shell 21. The support 232 is installed at the four corners of the inside of the protective shell 21, and the heating plate 233 is installed on the support 232. The output end of the temperature sensor 231 is electrically connected with the input end of a single-chip microcomputer, and the output end of the single-chip microcomputer is electrically connected with the input end of the heating plate 233.

[0031] The heating plate 233 can heat the three-way ball valve 22 in the low temperature season, so as to avoid the freezing of the three-way ball valve 22. The temperature sensor 231 can detect the heating temperature and control the temperature in a proper range, so as to avoid the damage of the three-way ball valve 22 caused by high temperature.

[0032] With reference to Figure 2 、 Figure 3 and Figure 4 , the top end of the protective shell 21 is provided with a fixing structure 26. The fixing structure 26 comprises a second adjusting screw rod 261, a fixing frame 262, a first clamping block 263 and a second clamping block 264. The fixing frame 262 is installed at the top end of the inside of the protective shell 21. The first clamping block 263 and the second clamping block 264 are respectively installed at the two sides of the inside of the fixing frame 262. One end of the second clamping block 264 is connected with the second adjusting screw rod 261 through a rotating seat. The inside of the first clamping block 263 and the second clamping block 264 are respectively provided with anti-skid lines. The anti-skid lines can enhance the fixing effect of the first clamping block 263 and the second clamping block 264 on the three-way ball valve 22.

[0033] The three-way ball valve 22 is placed in the fixing frame 262. The second adjusting screw rod 261 is rotated, and the second clamping block 264 is moved until the second clamping block 264 and the first clamping block 263 are in contact with the three-way ball valve 22, so as to achieve the purpose of quickly fixing the three-way ball valve 22 and improve the stability of the three-way ball valve 22 during use.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pneumatic pipe cleaning antifreeze device for electric sweepers, comprising a pneumatic pipe cleaning antifreeze component (2); Its features are: The pneumatic pipe cleaning antifreeze assembly (2) consists of a protective shell (21), a three-way ball valve (22), and a pipe (25); The three-way ball valve (22) is installed inside the protective shell (21). The two straight ports of the three-way ball valve (22) are connected to the water tank (1) and the water filter (3) respectively through pipes (7). One side of the water filter (3) is connected to the drain ball valve (4) through pipes (7). The top of the water filter (3) is connected to the water-cooled oil cooler (8) through pipes (7). The water-cooled oil cooler (8) is connected to the water pump (6) through pipes (7). The water pump (6) is connected to the nozzle (5) through pipes (7). An air pipe (25) is provided at the bypass port of the three-way ball valve (22), and a filter structure (24) is provided between the air pipe (25) and the bypass port of the three-way ball valve (22). The filter structure (24) includes a connecting pipe (241), a first sealing disc (242), a second sealing disc (243), a bushing (244), a first adjusting screw (245), a filter screen (246), a groove (247), a slot (248), and a locking block (249). The second sealing disc (243) is installed on one side of the protective shell (21), and the first sealing disc (242) is installed on one side of the second sealing disc (243). A connecting pipe (241) is installed on both the first sealing disc (242) and the second sealing disc (243). The connecting pipe (241) on the first sealing disc (242) is connected to the air pipe (25). The second sealing disc... The connecting pipe (241) on (243) is connected to the bypass port of the three-way ball valve (22). The inner walls of the first sealing disc (242) and the second sealing disc (243) are provided with grooves (247). A filter screen (246) is installed in the groove (247). A bushing (244) is installed on both ends of the second sealing disc (243). A first adjusting screw (245) is installed between the bushing (244) and the first sealing disc (242). A locking block (249) is evenly installed on the inner side of the second sealing disc (243). A locking groove (248) that cooperates with the locking block (249) is evenly opened on the inner side of the first sealing disc (242). The top of the protective shell (21) is provided with a fixing structure (26), and heating structures (23) are provided at the four corners of the protective shell (21).

2. The pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 1, characterized in that: The heating structure (23) includes a temperature sensor (231), a bracket (232) and a heating plate (233). The temperature sensor (231) is installed at one end of the inside of the protective shell (21). The brackets (232) are installed at the four corners inside the protective shell (21). The heating plate (233) is installed on each bracket (232).

3. The pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 2, characterized in that: The output terminal of the temperature sensor (231) is electrically connected to the input terminal of the microcontroller, and the output terminal of the microcontroller is electrically connected to the input terminal of the heating plate (233).

4. The pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 1, characterized in that: One end of the first adjusting screw (245) is inserted into the bushing (244) and forms a sliding connection with it.

5. A pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 1, characterized in that: The card block (249) and the card slot (248) form a locking structure.

6. The pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 1, characterized in that: The fixing structure (26) includes a second adjusting screw (261), a fixing frame (262), a first clamping block (263) and a second clamping block (264). The fixing frame (262) is installed at the top inside the protective shell (21). The first clamping block (263) and the second clamping block (264) are respectively installed on both sides inside the fixing frame (262). One end of the second clamping block (264) is connected to the second adjusting screw (261) through a rotating seat.

7. A pneumatic pipe cleaning antifreeze device for an electric sweeper according to claim 6, characterized in that: The inner sides of the first clamping block (263) and the second clamping block (264) are both equipped with anti-slip textures.

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