CN212129019U - Motor sweeper freeze-proof device and motor sweeper - Google Patents
Motor sweeper freeze-proof device and motor sweeper Download PDFInfo
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- CN212129019U CN212129019U CN202020630862.3U CN202020630862U CN212129019U CN 212129019 U CN212129019 U CN 212129019U CN 202020630862 U CN202020630862 U CN 202020630862U CN 212129019 U CN212129019 U CN 212129019U
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- pressure water
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Abstract
The utility model relates to the technical field of motor sweeper, and discloses a motor sweeper freeze-proof device and a motor sweeper, wherein the motor sweeper comprises a water tank, a water supply device and a cleaning mechanism, the water tank is connected with the cleaning mechanism through the water supply device, the water supply device comprises a high-pressure water pump and a water supply pipeline, and the motor sweeper freeze-proof device comprises a heating device and an antifreeze filling device; the heating device comprises a warm air blower which is communicated with the installation space of the high-pressure water pump through an air supply pipeline and is used for heating the high-pressure water pump; the antifreeze filling device comprises an antifreeze box, an antifreeze pipe and an antifreeze control valve; the antifreeze liquid tank is connected with the water supply device through the antifreeze liquid pipe and the antifreeze liquid control valve and is used for filling antifreeze liquid into the water supply device. The utility model discloses can prevent that the water supply installation of motor sweeper from freezing with clean the mechanism under low temperature environment.
Description
Technical Field
The utility model relates to a motor sweeper technical field especially relates to a motor sweeper freeze-proof device.
Background
The sweeper is a special vehicle for cleaning urban roads, is provided with a water tank and a water supply device, and supplies water for a cleaning mechanism through the water supply device, so that cleaning operations such as road surface flushing, water spraying and the like are realized. In order to prevent the water supply device from freezing in winter, the heat insulation layer is mainly arranged outside important components (such as a high-pressure water pump) of the water supply device, and the residual water is discharged by blowing high-pressure gas into the water supply device (namely, air-blowing drainage anti-freezing). However, the prior art still cannot completely discharge the moisture inside the water supply device, and the water supply device still freezes and cannot work in winter. Therefore, a technical scheme for thoroughly solving the problem of freezing of the sweeper in winter is urgently needed, and normal operation of the sweeper in winter is guaranteed.
SUMMERY OF THE UTILITY MODEL
Therefore, the anti-freezing device for the sweeper needs to be provided for solving the technical problems that a water supply device of the sweeper in the prior art is easy to freeze in winter and cannot be normally used.
In order to achieve the above object, the inventor provides an antifreezing device for a sweeper, wherein the sweeper comprises a water tank, a water supply device and a sweeping mechanism, the water tank is connected with the sweeping mechanism through the water supply device, the water supply device comprises a high-pressure water pump and a water supply pipeline, and the antifreezing device for the sweeper comprises a heating device and an antifreezing solution filling device;
the heating device comprises a fan heater which is communicated with the high-pressure water pump installation space through an air supply pipeline and is used for heating the high-pressure water pump;
the antifreeze filling device comprises an antifreeze box, an antifreeze pipe and an antifreeze control valve; the antifreeze liquid tank is connected with the water supply device through the antifreeze liquid pipe and the antifreeze liquid control valve and is used for filling antifreeze liquid into the water supply device.
Furthermore, a heat-insulating layer is attached to the inside of the high-pressure water pump installation space, and a temperature sensor is arranged on the high-pressure water pump, or a temperature sensor is arranged in the high-pressure water pump installation space.
Furthermore, the electric fan heater is a fuel oil type electric fan heater, and the fuel oil type electric fan heater is connected with an oil supply tank.
Furthermore, the water supply device further comprises a filter, the filter is connected in series on a water supply pipeline between the high-pressure water pump and the water tank, an insulation box is arranged outside the filter, and the fan heater is connected with the insulation box of the filter through an air supply pipeline and used for heating the filter.
Furthermore, the heating device also comprises a proportional valve, the proportional valve is arranged on the air supply pipeline of the filter or on the air supply pipeline of the high-pressure water pump, and the proportional valve is used for controlling the hot air distribution proportion of the fan heater to the high-pressure water pump and the filter.
Furthermore, the water supply pipeline comprises a high-pressure water supply pipeline arranged between the water outlet end of the high-pressure water pump and the cleaning mechanism and a low-pressure water supply pipeline arranged at the front end of the high-pressure water pump, and a heating belt and a heat insulation layer are arranged outside the high-pressure water supply pipeline and the low-pressure water supply pipeline.
Further, the motor sweeper still includes hydraulic system, hydraulic system includes hydraulic oil heat dissipation coil pipe, hydraulic oil heat dissipation coil pipe set up in the water tank for liquid in the heating water tank.
Further, hydraulic oil heat dissipation coil pipe includes fixed bolster, stereoplasm coil pipe and flexonics pipe, stereoplasm coil pipe fixed mounting in on the fixed bolster, the end that flows in and the end that flows of stereoplasm coil pipe pass through respectively flexonics pipe and hydraulic pressure oil pipe are connected.
Further, the sweeping mechanism comprises a high-pressure nozzle which is used for generating high-pressure water flow to wash the road surface.
In order to solve the technical problem, the utility model discloses still provide another technical scheme:
a sweeper comprises a chassis truck, a water tank, a water supply device, a sweeping mechanism and an anti-freezing device; the water tank, the water supply device, the cleaning mechanism and the anti-freezing device are arranged on the chassis truck, the water tank is connected with the cleaning mechanism through the water supply device, and the water supply device comprises a high-pressure water pump and a water supply pipeline; the anti-freezing device is the sweeper anti-freezing device in any technical scheme.
Different from the prior art, the anti-freezing device of the sweeper comprises a heating device and an anti-freezing liquid filling device; the heating device comprises a fan heater, and the fan heater is communicated with the high-pressure water pump installation space through an air supply pipeline and is used for heating the high-pressure water pump; the antifreeze filling device comprises an antifreeze box, an antifreeze pipe and an antifreeze control valve; the antifreeze liquid tank is connected with the water supply device through the antifreeze liquid pipe and the antifreeze liquid control valve and is used for filling antifreeze liquid into the water supply device. The heating device can heat important parts of a water supply device such as a high-pressure water pump and the like, so that the important parts are prevented from freezing in a low-temperature environment; the antifreeze solution filling device can fill the antifreeze solution into the water supply device when the sweeper stops working, and the freezing temperature of the antifreeze solution is low, so that the water supply device and the working mechanism can be prevented from freezing.
Drawings
FIG. 1 is a schematic view of a sweeper truck according to an embodiment (excluding the truck head);
FIG. 2 is a schematic diagram of a water supply line according to an embodiment;
FIG. 3 is an elevation view of an embodiment of the hydraulic oil cooling coil;
FIG. 4 is a top view of an embodiment of the hydraulic oil cooling coil;
FIG. 5 is a schematic view of another embodiment of the rigid coil;
description of reference numerals:
1. a chassis truck;
10. a warm air blower;
101. an oil tank;
102. an air supply duct;
103. an air supply duct;
104. a proportional valve;
11. a high pressure water pump;
111. a temperature sensor;
112. a high pressure water pump installation space;
12. a filter;
121. a temperature sensor;
122. a heat preservation box;
123. a drain valve;
20. an antifreeze tank;
21. an antifreeze tube;
22. an antifreeze control valve;
30. a hydraulic oil heat dissipation coil pipe;
31. a hard coil pipe;
32. a flexible connecting pipe;
33. fixing a bracket;
34. a shock pad;
40. a water tank;
41. a drain valve;
42. a drain pipe;
43. a water outlet valve of the water tank;
50. a water supply line;
51. a low pressure water supply line;
52. a high pressure water supply line;
501. a pipeline body;
502. heating the tape;
503. a heat-insulating layer;
504. a waterproof layer;
60. a cleaning mechanism;
61. a control valve;
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 5, the present embodiment provides an anti-freezing device for a sweeper and the sweeper. As shown in fig. 1, the structure of a sweeper (excluding a head structure) equipped with the sweeper anti-freezing device is schematically shown, and the sweeper comprises a chassis 1, a water tank 40, a water supply device, a sweeping mechanism 60 and an anti-freezing device. The water tank 40, the water supply device, the cleaning mechanism and the anti-freezing device are arranged on the chassis truck 1 and are driven by the chassis truck 1 to travel and perform cleaning operation. The water tank 40 is connected with the cleaning mechanism 60 through the water supply device, the water supply device at least comprises a high-pressure water pump 11 and a water supply pipeline 50, the water tank 40 is provided with a water outlet valve 43, the water outlet valve 43 is connected with the high-pressure water pump 11 through the water supply pipeline, and the high-pressure water pump 11 passes through the water supply pipeline 50 and the cleaning mechanism 60. The water is pressurized by the high-pressure water pump 11 and pumped to the cleaning mechanism 60 for cleaning. Because the water pressure at the water outlet end of the high pressure water pump 11 is greater than the water pressure at the water inlet end, the water supply pipeline 50 is connected with the high pressure water supply pipeline 52 between the water outlet end of the high pressure water pump 11 and the cleaning mechanism 60, and is connected with the low pressure water supply pipeline 51 between the water inlet end of the high pressure water pump 11 and the water tank 40. As shown in fig. 1, the water supply device may further include a filter 12, the filter 12 is disposed between the water tank 40 and the high pressure water pump 11, a water inlet end of the filter 12 is connected to the water tank 40 through a water outlet valve 43, and a water outlet end of the filter 12 is connected to the high pressure water pump 11 through a water supply line (i.e., a low pressure water supply line 51). The water in the water tank 40 enters the cleaning mechanism 60 through the water outlet valve 43, the filter 12 and the high-pressure water pump 11. In this embodiment, the filter 12 can improve the precision of the low pressure water, ensure the normal operation of the high pressure water pump 11, reduce the failure rate of the high pressure water pump 11, and improve the service life of the nozzle 60.
In the embodiment, in order to facilitate the discharge of the water in the water tank 40, a drain valve 41 and a drain pipe 42 are further provided at the bottom of the water tank 40.
The chassis truck 1 is provided with a power mechanism and a traveling mechanism, and the power mechanism can provide power for the traveling mechanism and the water supply device and the cleaning mechanism 60 on the chassis truck 1. In the present embodiment, the chassis 1 is a conventional chassis, and the power mechanism includes an internal combustion engine, and the internal combustion engine drives the traveling mechanism to operate. The power mechanism further comprises a hydraulic system, the internal combustion engine drives the hydraulic system to operate, and the hydraulic system provides power for the water supply device and the cleaning mechanism 60. Specifically, the hydraulic system includes a hydraulic oil pump, a hydraulic oil heat dissipation coil, a hydraulic oil tank, an actuator, and the like, wherein the actuator may be a hydraulic motor or a hydraulic oil cylinder, and the like. The hydraulic oil pump can be in power connection with the internal combustion engine through the power takeoff to drive the hydraulic oil pump to pressurize hydraulic oil, and then the pressurized hydraulic oil drives the execution device to work. A large amount of heat can be generated in the pressurizing process of the hydraulic oil, and the high-temperature hydraulic oil is cooled through the hydraulic oil heat dissipation coil.
In other embodiments, the chassis 1 may also be an electric chassis, and the electric chassis includes a power battery and a driving motor, and the driving motor and the high-pressure water pump 11 are powered by the power battery.
In the present embodiment, the cleaning mechanism 60 includes a high-pressure nozzle disposed toward the road surface and connected to the high-pressure water supply line 52 through a control valve 61. When the control valve 61 is switched on, high-pressure water enters the high-pressure nozzle and generates high-pressure water columns to flush the road surface. In another embodiment, the cleaning mechanism 60 may include a rotary cleaning disk and a spray dust settling device provided beside the rotary cleaning disk, and the spray dust settling device may be connected to the high-pressure water supply line 52 through a control valve 61. During cleaning operation, the road surface can be cleaned through the rotary cleaning disc, and the road surface is dusted through the spraying dustfall device. In some embodiments, sweeping mechanism 60 may also include a negative pressure suction nozzle that is positioned against the road surface. The chassis truck is also provided with a dustbin and a vacuum device, the negative pressure suction nozzle is communicated with the vacuum device and the dustbin through a pipeline, the vacuum device enables the negative pressure suction nozzle to generate suction, and garbage and sewage generated by cleaning are collected into the dustbin.
The anti-freezing device is used for preventing the water supply device and the cleaning mechanism from being frozen and incapable of being used normally in a low-temperature environment, and comprises a heating device and an anti-freezing liquid filling device as shown in figure 1. Wherein, the heating device is used for heating important parts such as a high-pressure water pump 11 of the water supply device, improving the surface temperature of the parts and preventing the parts from freezing; the antifreezing solution filling device is used for filling the antifreezing solution into the water supply device and preventing the antifreezing solution from freezing when the operation is stopped.
Specifically, the heating device includes a warm air blower 10, and the warm air blower 10 is communicated with the high-pressure water pump installation space 112 through an air supply pipeline 102 and is used for heating the high-pressure water pump 11. Wherein, the warm air blower 10 at least comprises a heating device for heating air and a blowing device for making air flow. In this embodiment, the fan heater 10 is a gas fan heater, and the heating device of the gas fan heater is a combustion heating device, which releases heat by burning fuel, and then blows the heat into the air supply pipeline by the fan, and then the hot air is delivered to the high pressure water pump installation space 112 by the air supply pipeline to heat the high pressure water pump 11. In order to supply fuel to the gas-fired heater unit 10, an oil tank 101 for supplying oil to the gas-fired heater unit is provided on the chassis 1. In other embodiments, the warm air blower may also be an electric heating warm air blower, and the electric heating warm air blower heats air by using electric heating devices such as electric heating wires.
Preferably, the high pressure water pump installation space 112 is located at the bottom of the water tank 40, and may be recessed from the bottom of the water tank 40 to form the high pressure water pump installation space 112. In order to reduce the heat diffusion of the high-pressure water pump installation space 112, the high-pressure water pump installation space may be a closed space or a semi-closed space, and an insulation material is attached to the inner wall of the high-pressure water pump installation space 112. The thermal insulation material can be asbestos or a foaming thermal insulation material. Furthermore, in order to prevent heat of the air supply pipeline from radiating, an insulating layer can be coated outside the air supply pipeline.
As shown in fig. 1, in order to prevent the filter 12 from freezing, in the embodiment, an insulation box 122 is further provided outside the filter 12, and the insulation box 122 is connected to the fan heater 10 through an air supply duct 103, so that the filter 12 is heated by the high-temperature gas generated by the fan heater 10.
As shown in fig. 1, in the embodiment, the air outlet of the fan heater 10 is connected to a main air supply duct connected to the high pressure water pump installation space through the air supply duct 102 and to the insulation can 122 of the filter 12 through the air supply duct 103, thereby simultaneously heating the high pressure water pump 11 and the filter 12 through one fan heater 10. Further, a temperature sensor 111 is provided in the high-pressure water pump installation space 112 in order to detect the temperature of the high-pressure water pump 11, and a temperature sensor 121 is provided on the inner wall of the heat insulating tank 122 in order to detect the temperature of the filter 12. In other embodiments, the temperature sensor 111 may be disposed directly on the high pressure water pump 11 and the temperature sensor 121 may be disposed on the filter 12 in order to detect the temperature of the high pressure water pump 11.
In some embodiments, the power of the fan heater 10 is adjustable, so that the fan heater 10 can be controlled to start and the power of the fan heater 10 can be controlled according to the temperature of the high pressure water pump 11 detected by the temperature sensor 111 and the temperature of the filter 12 detected by the temperature sensor 121. For example, when the temperature of the high pressure water pump 11 or the temperature of the filter 12 is lower than 3 degrees (or 0 degrees), the warm air blower 10 is turned on to heat the high pressure water pump 11 and the filter 12, and the lower the detected temperature is, the power of the warm air blower 10 is correspondingly provided, so that the temperatures of the high pressure water pump 11 and the filter 12 are maintained above 0 degrees.
As shown in fig. 1, a proportional valve 104 is provided in the air supply duct 103 connected to the incubator 122 of the filter 12. The proportional valve 104 is a valve with a continuously adjustable conduction angle, so that the amount of the high-temperature gas entering the thermal insulation box 122 can be adjusted through the proportional valve 104. Since the heat generated by the fan heater 10 is constant at a certain power, the high temperature gas generated by the fan heater 10 can be distributed reasonably through the proportional valve 104. In another embodiment, the proportional valve 104 may be disposed on the air supply pipe 102 of the high pressure water pump 11, which may also achieve the effect of reasonably distributing the high temperature gas generated by the fan heater 10.
Further, in order to prevent the water supply line 50 from freezing in the water supply apparatus, heating may be performed in the water supply line 50. As shown in fig. 2, in an embodiment, the water supply line includes a line body 501, and a heating band 502 wound around the outer circumference of the line body 501, and the heating band 502 may generate heat when energized, so that the interior of the water supply line 50 may be prevented from freezing by generating heat through the heating band 502. In order to reduce the outward diffusion of heat generated by the heating belt 502, an insulating layer 503 may be further disposed outside the heating belt 502; and a waterproof layer 504 may be further coated on the outside of the insulating layer 503 for waterproofing.
As shown in fig. 1, the antifreeze filling apparatus includes an antifreeze tank 20, an antifreeze pipe 21, and an antifreeze control valve 22. The antifreeze tank 20 is connected to a water supply line 50 of the water supply device through the antifreeze pipe 21 and the antifreeze control valve 22, and is used for filling the water supply device with antifreeze to prevent the water supply device and the cleaning mechanism 60 from freezing. The antifreeze may be, but not limited to, antifreeze containing ethylene glycol, antifreeze containing propylene glycol, or antifreeze containing diethylene glycol.
As shown in fig. 1, in the present embodiment, the antifreeze control valve 22 is provided between the water inlet end of the high-pressure water pump 11 and the water outlet end of the filter 12. When the sweeper stops operating, the antifreeze control valve 22 is controlled to open, and antifreeze is injected into the high-pressure water pump 11 and the filter 12 at the same time and enters the cleaning mechanism 60 through the high-pressure water supply line 52, so that the high-pressure water pump 11, the filter 12, the water supply line 50, and the cleaning mechanism 60 are prevented from freezing. In some embodiments, in order to increase the filling pressure and speed of the antifreeze, a pressure pump may be further provided on the antifreeze pipe 21 of the antifreeze filling apparatus.
In order to conveniently control the anti-freezing device to work, the anti-freezing device can be provided with a heating device one-key control key and an anti-freezing liquid filling device one-key control key. When the temperature of the sweeper is lower than 0 ℃, the warm air blower 10 can be controlled by the one-key control key of the heating device to work, the filter 12 and the high-pressure water pump 11 are heated by hot air, and meanwhile, the heating belt 502 is also controlled to be electrified to heat the water supply pipeline 50. When the operation of the sweeper is finished, the drain valve 41 and the drain valve 123 are opened by one-key control button, and accumulated water in the water tank 40 and in the filter 12 and the low-pressure water supply line 51 is discharged. Then the antifreeze control valve 22 is switched, the high-pressure water pump 11 is operated at a low speed, and the high-pressure water pump 24 is automatically stopped when the colored antifreeze of the cleaning mechanism 60 is sprayed out, so that the problem of accumulated water freezing is solved, and the normal operation of the vehicle is ensured.
In one embodiment, the antifreeze tank 20 is provided with a high level line and a low level line, and when antifreeze is added, the antifreeze is stopped from being added to prevent overflow when the antifreeze exceeds the high level line or a high level automatic alarm is generated. After the antifreezing solution is used for multiple times, when the low-level liquid level automatic alarm appears, the operation of the high-pressure water pump 11 is immediately stopped, the waste of the antifreezing solution is avoided, and the high-pressure water pump 11 is prevented from being damaged by air suction.
As shown in fig. 1, a hydraulic oil heat dissipation coil 30 is further disposed in the water tank 40, and the hydraulic oil heat dissipation coil 30 is used for cooling the hydraulic oil circulating in the hydraulic system. In the present embodiment, the hydraulic oil heat dissipation coil 30 of the hydraulic system is disposed in the water tank 40, so that the heat of the high-temperature hydraulic oil can be transferred to the water in the water tank 40, thereby rapidly cooling the high-temperature hydraulic oil and raising the water temperature. After the water temperature rises, the solubility of water is correspondingly improved, the cleaning effect is improved during cleaning operation, and particularly for roads with serious oil stains, the cleaning efficiency and the cleaning effect are superior to those of cleaning operation with cold water.
As shown in fig. 3 and 4, in one embodiment, the hydraulic oil radiator coil 30 includes a hard coil 31, a flexible connection pipe 32, a shock pad 34, and a fixing bracket 33. The hard coil 31 can be fixedly mounted on the fixing support 33 through a hoop, the bottom of the fixing support 33 is provided with a shock pad 34, and the inflow end and the outflow end of the hard coil 31 are respectively connected with the hydraulic oil pipe through the flexible connecting pipe 32. The shock absorbing pad 34 may be made of elastic and flexible materials such as rubber and silica gel, which can effectively reduce the transmission of the vehicle vibration to the hard coil 31. As shown in fig. 3 and 4, the rigid coil 31 may be a serpentine coil. In some embodiments, a reinforcing rib can be arranged between adjacent serpentine coils, wherein the reinforcing rib can be transversely, vertically or obliquely arranged (as long as the serpentine coils can be welded into a whole), and a plurality of serpentine coils are welded into a whole through the reinforcing rib, so that the vibration of the serpentine coils can be reduced. As shown in fig. 5, in yet other embodiments, the rigid coil 31 may be a helical coil. The flexible connecting pipe 32 can be a rubber hose, a steel metal hose and the like, and in the embodiment, the mass coil pipe 31 is connected with the external oil pipe through the flexible connecting pipe 32, so that the vibration of the external oil pipe can be greatly reduced and transmitted to the hard coil pipe 31, and the service life of the hard coil pipe 31 is prolonged.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (10)
1. A sweeper anti-freezing device comprises a water tank, a water supply device and a sweeping mechanism, wherein the water tank is connected with the sweeping mechanism through the water supply device, the water supply device comprises a high-pressure water pump and a water supply pipeline, and the sweeper anti-freezing device is characterized by comprising a heating device and an anti-freezing liquid filling device;
the heating device comprises a fan heater which is communicated with the high-pressure water pump installation space through an air supply pipeline and is used for heating the high-pressure water pump;
the antifreeze filling device comprises an antifreeze box, an antifreeze pipe and an antifreeze control valve; the antifreeze liquid tank is connected with the water supply device through the antifreeze liquid pipe and the antifreeze liquid control valve and is used for filling antifreeze liquid into the water supply device.
2. The sweeper anti-freezing device as claimed in claim 1, wherein an insulating layer is attached to the inside of the high-pressure water pump installation space, and a temperature sensor is arranged on the high-pressure water pump or a temperature sensor is arranged in the high-pressure water pump installation space.
3. The sweeper anti-freezing device as claimed in claim 2, wherein the air heater is a fuel oil type air heater, and the fuel oil type air heater is connected with a fuel oil supply tank.
4. The sweeper anti-freezing device as claimed in claim 2, wherein the water supply device further comprises a filter, the filter is connected in series to a water supply pipeline between the high pressure water pump and the water tank, an insulation box is arranged outside the filter, and the fan heater is connected with the insulation box of the filter through an air supply pipeline and used for heating the filter.
5. The sweeper anti-freezing device as claimed in claim 4, wherein the heating device further comprises a proportional valve, the proportional valve is arranged on the air supply pipeline of the filter or the air supply pipeline of the high-pressure water pump, and the proportional valve is used for controlling the hot air distribution proportion of the warm air blower to the high-pressure water pump and the filter.
6. The sweeper antifreeze apparatus of claim 1, wherein said water supply line comprises a high pressure water supply line disposed between said high pressure water pump outlet end and said cleaning mechanism, and a low pressure water supply line disposed at a front end of said high pressure water pump, said high pressure water supply line and said low pressure water supply line being externally provided with a heating zone and an insulating layer.
7. The sweeper antifreeze apparatus of claim 1, further comprising a hydraulic system including a hydraulic oil heat dissipation coil disposed within said water tank for heating the liquid within the water tank.
8. The anti-freezing device of the sweeper of claim 7, wherein the hydraulic oil heat dissipation coil comprises a fixed support, a hard coil and a flexible connecting pipe, the hard coil is fixedly mounted on the fixed support, and an inflow end and an outflow end of the hard coil are respectively connected with the hydraulic oil pipe through the flexible connecting pipe.
9. The sweeper truck antifreeze apparatus of claim 1, wherein the sweeping mechanism includes a high pressure nozzle for generating a high pressure water stream to flush the road surface.
10. A sweeper is characterized by comprising a chassis, a water tank, a water supply device, a sweeping mechanism and an anti-freezing device; the water tank, the water supply device, the cleaning mechanism and the anti-freezing device are arranged on the chassis truck, the water tank is connected with the cleaning mechanism through the water supply device, and the water supply device comprises a high-pressure water pump and a water supply pipeline; the anti-freezing device is the sweeper anti-freezing device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020630862.3U CN212129019U (en) | 2020-04-23 | 2020-04-23 | Motor sweeper freeze-proof device and motor sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020630862.3U CN212129019U (en) | 2020-04-23 | 2020-04-23 | Motor sweeper freeze-proof device and motor sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212129019U true CN212129019U (en) | 2020-12-11 |
Family
ID=73690304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020630862.3U Active CN212129019U (en) | 2020-04-23 | 2020-04-23 | Motor sweeper freeze-proof device and motor sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212129019U (en) |
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2020
- 2020-04-23 CN CN202020630862.3U patent/CN212129019U/en active Active
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