Dumper gas circuit anti-freezing mechanism

Abstract

The utility model provides a dumper gas circuit anti-freezing mechanism, and belongs to the technical field of dumper gas circuits. The connecting box is fixedly mounted at the bottom of the protective cylinder; the top of the protective cylinder is fixedly sleeved with an air inlet pipe; a condensation mechanism is mounted between the protective cylinder and the connecting box, and the air inlet pipe is connected with the condensation mechanism; the liquid discharging mechanism is mounted at the bottom of the connecting box; a drying tank is mounted at the bottom of the protective cylinder and communicates with the connecting box; and the drying tank is sleeved with the air outlet pipe. The air inlet pipe is connected with an external air compressor end, the air outlet pipe is connected with an external working system end, compressed air enters the condensation mechanism through the air inlet pipe, so that a large amount of moisture is condensed, then a small amount of residual moisture is dried through the drying tank, and the moisture is prevented from entering an air valve of a working system; and by means of the liquid discharging mechanism, condensate water can be synchronously discharged when pressure is released after the air pressure reaches the working pressure, and continuous use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas circuits of dump trucks, and more specifically to an antifreeze mechanism for the gas circuits of dump trucks. Background Art

[0002] The working system of the dump truck contains an air circuit, which generates compressed air through an air compressor and then transports high-pressure air to the working system through pipes and valves.

[0003] A document with prior art publication number CN213799616U provides an external air circuit brake system installation structure for a mining dump truck, the device comprising a battery box, the battery box having a built-in battery, and the battery box being fixed to the side of a vehicle frame; an air storage tank, a plurality of the air storage tanks being hoisted and fixed to the bottom of the battery box; a four-way protection valve, the four-way protection valve being fixed to the side of the battery box through a first bracket; a dryer, the dryer being fixed to the side of the battery box through a second bracket; and a regenerator, the regenerator being fixed to the side of the battery box through a third bracket.

[0004] Although the above-mentioned prior art solutions can achieve the relevant beneficial effects through the structure of the prior art, they still have the following defects: the water filtration is not thorough when the dryer is used for a long time, and the water absorption of the dryer is saturated, which will further cause incomplete water filtration. The incompletely filtered water will enter and corrode various air valves in the air path, and freeze in winter, affecting the operation of the air valves and causing air path failure. In view of this, we propose an antifreeze mechanism for the air path of a dump truck. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an antifreeze mechanism for the gas circuit of a dump truck, which solves the problem in the above-mentioned background technology that the moisture is not completely filtered out simply by drying with a dryer, and the dryer is used for a long time and the moisture is saturated, which will further cause incomplete moisture filtration. The incompletely filtered moisture will enter and corrode various air valves in the gas circuit, and freeze in winter, affecting the operation of the air valves and causing gas circuit failure.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a dump truck gas circuit antifreeze mechanism, including a protective cylinder;

[0007] A connection box, the bottom of the protective tube is fixedly mounted with a connection box;

[0008] An air intake pipe, the top of the protective tube is fixedly sleeved with the air intake pipe;

[0009] A condensing mechanism, wherein a condensing mechanism is installed between the protective tube and the connection box, and the air inlet pipe is connected to the condensing mechanism;

[0010] A drainage mechanism, wherein a drainage mechanism is installed at the bottom of the connection box;

[0011] A drying tank, wherein the bottom of the protective cylinder is provided with a drying tank, and the drying tank is connected to the connection box;

[0012] An air outlet pipe is sleeved on the drying tank.

[0013] Through the above scheme, the air inlet pipe is connected to the air compressor end, and the air outlet pipe is connected to the working system end. The compressed gas enters the condensing mechanism through the air inlet pipe, thereby condensing a large amount of water. The remaining small amount of water is then dried through the drying tank to prevent water from entering the air valve of the working system and to prevent ice from forming in the air valve in cold weather to affect the work. The drain mechanism is used to discharge the condensed water synchronously when the pressure reaches the working pressure and the pressure is released, so as to facilitate continuous use.

[0014] Optionally, the condensing mechanism includes a spiral tube, the inner cavity of the protective tube is provided with a spiral tube, the top of the spiral tube is fixedly connected to the air inlet pipe, the bottom of the spiral tube is fixedly connected to a connecting tube, the connecting tube is fixedly passed through the bottom of the protective tube and extends into a connecting box, the bottom outer wall of the connecting tube is fixedly sleeved with a copper sleeve, the side of the connecting box is fixedly sleeved with a semiconductor refrigeration plate, the semiconductor refrigeration plate fits tightly with the copper sleeve, the side wall of the protective tube is a porous mesh structure, the spiral tube and the connecting tube are both through tubes, the cold end of the semiconductor refrigeration plate fits with the copper sleeve, and the hot end of the semiconductor refrigeration plate passes through the outside of the connecting box.

[0015] Through the above scheme, the protective tube protects the spiral tube and connects it to the outside air. When it is cold in winter, the low temperature of the outside world contacts the spiral tube, and the compressed air flows through the spiral tube to increase the heat exchange area and flow with the outside world. As a result, a large amount of water condenses under the heat exchange of cold air, and flows into the connecting box through the connecting pipe for collection, and the semiconductor refrigeration plate can also be energized to cool and condense the connecting pipe again, thereby fully condensing the water.

[0016] Optionally, the discharge mechanism includes a liquid storage box, which is fixedly sleeved on the bottom of a connecting box, a discharge hole is opened at the bottom of one side of the liquid storage box, a guide cylinder is fixedly sleeved on the bottom plate of the connecting box on one side of the discharge hole, a piston is slidably engaged in the guide cylinder, the bottom of the piston is fixedly connected to a connecting rod, the bottom of the connecting rod slides through the guide cylinder and is fixedly connected to a sealing plate, the sealing plate fits tightly against the outer wall of the liquid storage box at the discharge hole, and a spring is sleeved on the connecting rod between the piston and the bottom of the guide cylinder.

[0017] Through the above scheme, condensed water is stored at the bottom of the liquid storage box. As the compressed gas enters the working end, the pressure in the connecting box gradually increases to reach the working pressure, and the piston is pushed down by the air pressure, the spring is compressed, and the connecting rod pushes the sealing plate. The sealing plate gradually moves down to expose the discharge hole, thereby discharging excess compressed gas and stored condensed water from the discharge hole. When the compressed gas is discharged, the air pressure decreases, the spring pushes the piston up, and the sealing plate blocks the discharge hole for subsequent use.

[0018] Optionally, the drying tank includes a tank body, which is fixedly mounted on the bottom of the protective cylinder, and the top of one side wall of the tank body is connected to the top of the side wall of the connection box through a pipe, and the bottom of the other side wall of the tank body is fixedly sleeved with an air outlet pipe, and a placement cylinder is sleeved in the tank body through a threaded structure, the placement cylinder is filled with a desiccant, and the bottom end cover of the placement cylinder is fixedly sleeved with a pressure relief valve.

[0019] Through the above scheme, the compressed gas after condensation and dehydration enters the tank through the pipeline, passes through the placement cylinder on the mesh outer wall, and the remaining small amount of moisture is absorbed by the desiccant to achieve the purpose of sufficient drying. A small amount of moisture can extend the use time of the desiccant and avoid rapid saturation of the desiccant, so that it can meet the use within a period of time. Then, the placement cylinder can be spirally removed and replaced with a new desiccant, thereby reducing the number of times the desiccant is replaced.

[0020] One or more technical solutions provided in the technical solution of the utility model have at least the following technical effects or advantages:

[0021] 1. The utility model condenses a large amount of water by exchanging heat with the outside cold air through the condenser tube, and condenses again by auxiliary cooling with the semiconductor refrigeration sheet, thereby condensing and removing a large amount of water, and then the compressed gas enters the tank through the pipeline, passes through the placement cylinder of the mesh outer wall, and the remaining small amount of water is absorbed by the desiccant to achieve the purpose of full drying. A small amount of water can extend the use time of the desiccant and avoid the rapid saturation of the desiccant, thereby avoiding the freezing of water in the air valve at the working end in cold weather to affect the work;

[0022] 2. Condensed water is stored at the bottom of the liquid storage box. As the compressed gas enters the working end, the pressure in the connecting box gradually increases to reach the working pressure. The piston is pushed down by the air pressure, the spring is compressed, and the connecting rod pushes the sealing plate. The sealing plate gradually moves down to expose the discharge hole, thereby discharging excess compressed gas and stored condensed water from the discharge hole. When the compressed gas is discharged, the air pressure decreases, the spring pushes the piston up, and the sealing plate blocks the discharge hole for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a dump truck gas circuit antifreeze mechanism in a specific embodiment of the utility model;

[0024] Figure 2It is a cross-sectional view of a dump truck gas circuit antifreeze mechanism in a specific embodiment of the utility model;

[0025] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0026] Figure 4 For this utility model Figure 2 A magnified view of the structure of part B.

[0027] Explanation of the numbers in the figure: 1. Protective cylinder; 2. Air inlet pipe; 3. Connecting box; 4. Drain mechanism; 41. Liquid storage box; 42. Guide cylinder; 43. Piston; 44. Connecting rod; 45. Spring; 46. Sealing plate; 47. Discharge hole; 5. Drying tank; 51. Tank body; 52. Placement cylinder; 53. Desiccant; 54. Pressure relief valve; 6. Air outlet pipe; 7. Condensation mechanism; 71. Spiral tube; 72. Connecting pipe; 73. Copper sleeve; 74. Semiconductor refrigeration plate. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] Example, see Figure 1 and Figure 2 The embodiment of the utility model provides an antifreeze mechanism for the air circuit of a dump truck, comprising a protective cylinder 1; a connecting box 3, the bottom of the protective cylinder 1 is fixedly installed with the connecting box 3; an air inlet pipe 2, the top of the protective cylinder 1 is fixedly sleeved with the air inlet pipe 2; a condensing mechanism 7, the condensing mechanism 7 is installed between the protective cylinder 1 and the connecting box 3, and the air inlet pipe 2 is connected to the condensing mechanism 7; a drain mechanism 4, the bottom of the connecting box 3 is installed with the drain mechanism 4; a drying tank 5, the bottom of the protective cylinder 1 is installed with the drying tank 5, and the drying tank 5 is connected to the connecting box 3; an air outlet pipe 6, the drying tank 5 is sleeved with the air outlet pipe 6, the air inlet pipe 2 is connected to the air compressor end, and the air outlet pipe 6 is connected to the working system end, the compressed gas enters the condensing mechanism 7 through the air inlet pipe 2, thereby condensing a large amount of water, and then the remaining small amount of water is dried through the drying tank 5, so as to prevent water from entering the air valve of the working system, and to prevent ice from forming in the air valve in cold weather to affect the work, and the condensed water is discharged synchronously when the pressure is released after the air pressure reaches the working pressure through the drain mechanism 4, so as to facilitate continuous use.

[0030] Reference Figure 2The condensing mechanism 7 includes a spiral tube 71. The inner cavity of the protective tube 1 is provided with a spiral tube 71. The top of the spiral tube 71 is fixedly connected to the air inlet pipe 2. The bottom of the spiral tube 71 is fixedly connected to a connecting tube 72. The connecting tube 72 is fixedly penetrated through the bottom of the protective tube 1 and extends into the connecting box 3. The bottom outer wall of the connecting tube 72 is fixedly sleeved with a copper sleeve 73. The side of the connecting box 3 is fixedly sleeved with a semiconductor refrigeration sheet 74. The semiconductor refrigeration sheet 74 fits tightly with the copper sleeve 73. The side wall of the protective tube 1 is a porous mesh structure. The spiral tube 71 and the connecting tube 72 are both through tubes. The cold end of the semiconductor refrigeration sheet 74 fits the copper sleeve 73, and the hot end of the semiconductor refrigeration sheet 74 passes through the outside of the connecting box 3. The protective tube 1 protects the spiral tube 71 and connects it to the outside air. When it is cold in winter, the low temperature outside contacts the spiral tube 71, and the compressed air flows through the spiral tube 71 to increase the heat exchange area and flow with the outside, so that a large amount of water condenses under the heat exchange of cold air, and flows into the connecting box 3 through the connecting tube 72 for collection, and the semiconductor refrigeration sheet 74 can also be energized to cool and condense the connecting tube 72 again, so as to fully condense the water.

[0031] Reference Figure 2 and Figure 3 The discharge mechanism 4 includes a liquid storage box 41, which is fixedly sleeved on the bottom of the connecting box 3. A discharge hole 47 is opened on the bottom of one side of the liquid storage box 41. A guide cylinder 42 is fixedly sleeved on the bottom plate of the connecting box 3 on the side of the discharge hole 47. A piston 43 is slidably engaged in the guide cylinder 42. The bottom of the piston 43 is fixedly connected to a connecting rod 44. The bottom of the connecting rod 44 slides through the guide cylinder 42 and is fixedly connected to a sealing plate 46. The sealing plate 46 is tightly fitted to the outer wall of the liquid storage box 41 at the discharge hole 47. The connecting rod 44 between the piston 43 and the bottom of the guide cylinder 42 A spring 45 is sleeved on the upper part, and condensed water is stored at the bottom of the liquid storage box 41. As the compressed gas enters the working end, the pressure in the connecting box 3 gradually increases to reach the working pressure, and the piston 43 is pushed down by the air pressure, the spring 45 is compressed, and the connecting rod 44 pushes the sealing plate 46. The sealing plate 46 gradually moves down to expose the discharge hole 47, so that the excess compressed gas and the stored condensed water are discharged from the discharge hole 47. When the compressed gas is discharged, the air pressure decreases, the spring 45 pushes the piston 43 to move up, and the sealing plate 46 blocks the discharge hole 47 for subsequent use.

[0032] Reference Figure 2 and Figure 4The drying tank 5 includes a tank body 51, which is fixedly installed at the bottom of the protective cylinder 1, and the top of one side wall of the tank body 51 is connected to the top of the side wall of the connection box 3 through a pipeline, and the bottom of the other side wall of the tank body 51 is fixedly sleeved with the air outlet pipe 6, and the placement cylinder 52 is sleeved in the tank body 51 through a threaded structure, and the placement cylinder 52 is filled with a desiccant 53. The bottom end cover of the placement cylinder 52 is fixedly sleeved with a pressure relief valve 54, and the compressed gas after condensation and dehydration enters the tank body 51 through the pipeline, passes through the placement cylinder 52 with a mesh outer wall, and the remaining small amount of moisture is absorbed by the desiccant 53 to achieve the purpose of sufficient drying. A small amount of moisture can extend the use time of the desiccant 53 and avoid the rapid saturation of the desiccant 53, so that it can meet the use within a period of time, and then the placement cylinder 52 can be spirally removed and replaced with a new desiccant 53, thereby reducing the number of replacement times of the desiccant 53.

[0033] Working principle: the air inlet pipe 2 is connected to the external air compressor end, the air outlet pipe 6 is connected to the external working system end, the protective tube 1 protects the spiral tube 71 and connects the outside air. When it is cold in winter, the low temperature outside contacts the spiral tube 71. When the compressed air flows through the spiral tube 71, the heat exchange area and flow rate with the outside are increased, so that a large amount of water condenses under the heat exchange of cold air, and flows into the connection box 3 through the connecting pipe 72 for collection, and the semiconductor refrigeration plate 74 can also be energized to cool the connecting pipe 72 again to condense the water, so as to fully condense the water. The condensed water is stored at the bottom of the liquid storage box 41. As the compressed gas enters the working end, the pressure in the connection box 3 gradually increases to reach the working pressure, and the piston 43 is pushed down by the air pressure, the spring 45 is compressed, and the connecting rod 44 The sealing plate 46 is pushed, and the sealing plate 46 gradually moves downward to expose the discharge hole 47, so that the excess compressed gas and the stored condensed water are discharged from the discharge hole 47. When the compressed gas is discharged, the air pressure decreases, and the spring 45 pushes the piston 43 to move upward, and the sealing plate 46 blocks the discharge hole 47 for subsequent use. The compressed gas after condensation and dehydration enters the tank body 51 through the pipeline, passes through the placement cylinder 52 on the mesh outer wall, and the remaining small amount of moisture is absorbed by the desiccant 53 to achieve the purpose of sufficient drying. A small amount of moisture can extend the use time of the desiccant 53 and avoid the desiccant 53 from being quickly saturated, so that it can meet the use within a period of time. Then the placement cylinder 52 can be spirally removed and replaced with a new desiccant 53, thereby reducing the number of times the desiccant 53 is replaced.

Claims

1. A dump truck air circuit antifreeze mechanism, characterized in that: Including protective tube; A connection box, the bottom of the protective tube is fixedly mounted with a connection box; An air intake pipe, the top of the protective tube is fixedly sleeved with the air intake pipe; A condensing mechanism, wherein a condensing mechanism is installed between the protective tube and the connection box, and the air inlet pipe is connected to the condensing mechanism; A drainage mechanism, wherein a drainage mechanism is installed at the bottom of the connection box; A drying tank, wherein the bottom of the protective cylinder is provided with a drying tank, and the drying tank is connected to the connection box; An air outlet pipe is sleeved on the drying tank.

2. A dump truck air circuit antifreeze mechanism according to claim 1, characterized in that: The condensing mechanism includes a spiral tube, the inner cavity of the protective tube is provided with a spiral tube, the top of the spiral tube is fixedly connected to the air inlet pipe, the bottom of the spiral tube is fixedly connected to a connecting tube, the connecting tube is fixedly passed through the bottom of the protective tube and extends into a connecting box, the bottom outer wall of the connecting tube is fixedly sleeved with a copper sleeve, the side of the connecting box is fixedly sleeved with a semiconductor refrigeration plate, and the semiconductor refrigeration plate fits tightly with the copper sleeve.

3. A dump truck air circuit antifreeze mechanism according to claim 2, characterized in that: The side wall of the protective tube is a porous mesh structure, the spiral tube and the connecting tube are both through tubes, the cold end of the semiconductor refrigeration plate is attached to the copper sleeve, and the hot end of the semiconductor refrigeration plate passes through the outside of the connection box.

4. The dump truck air circuit antifreeze mechanism according to claim 1, characterized in that: The liquid discharge mechanism includes a liquid storage box, which is fixedly sleeved on the bottom of the connecting box. A discharge hole is opened at the bottom of one side of the liquid storage box, and a guide cylinder is fixedly sleeved on the bottom plate of the connecting box on one side of the discharge hole. A piston is slidably engaged in the guide cylinder, and the bottom of the piston is fixedly connected to a connecting rod. The bottom of the connecting rod slides through the guide cylinder and is fixedly connected to a sealing plate. The sealing plate is tightly fitted to the outer wall of the liquid storage box at the discharge hole, and a spring is sleeved on the connecting rod between the piston and the bottom of the guide cylinder.

5. The dump truck air circuit antifreeze mechanism according to claim 1, characterized in that: The drying tank comprises a tank body, which is fixedly mounted on the bottom of the protective cylinder, and the top of one side wall of the tank body is connected to the top of the side wall of the connection box through a pipeline, and the bottom of the other side wall of the tank body is fixedly sleeved out The air pipe is in the tank body, and the placing cylinder is sleeved by a threaded structure, and the placing cylinder is filled with a desiccant. The bottom end cover of the placement cylinder is fixedly sleeved with a pressure relief valve.

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