Vehicle cargo compartment heating device and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a vehicle cargo compartment heating device which comprises a heating assembly, and the heating assembly comprises a heating channel used for being communicated with a heating pipeline system of a cargo compartment and an air inlet structure communicated with the heating channel; the joint assembly is used for being arranged below the heating assembly and comprises a joint structure used for being communicated with a tail gas pipe of a vehicle and a rebound structure in transmission connection with the joint structure, and the joint structure is arranged below the gas inlet structure; the springback structure is used for generating elastic force under the pressure of the cargo compartment so as to push the connector structure to be connected with and communicate with the air inlet structure. The vehicle cargo compartment heating device is simple in structure, tail gas can be recycled, and the problems of material retention and low transportation efficiency caused by material freezing in a cargo compartment under the low-temperature condition are solved. The utility model further discloses a vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle cargo compartment heating device and a vehicle having the vehicle cargo compartment heating device. Background Art

[0002] Dump trucks are important equipment in heavy-duty transportation fields such as mining and construction, and are specially used to transport large amounts of earth, stone and mineral materials. In mining operations in high-altitude and cold areas, the winter temperature often drops to tens of degrees below zero, and the extreme low temperature environment brings a series of challenges to the transportation process. Due to the low temperature, the transported earth and stone materials are easily frozen in the carriage, especially when waiting or docking for a long time. Frozen materials are difficult to slide out of the carriage smoothly during dumping, resulting in cargo retention and affecting unloading efficiency. This unloading stagnation phenomenon not only prolongs the unloading time and affects the overall transportation efficiency, but may also cause the actual loading quality of mining dump trucks to decrease, and the vehicle's load capacity cannot be fully utilized. In addition, frozen materials are retained in the carriage, which may cause the center of gravity of the cargo compartment to shift, increase the instability of the vehicle during driving, and may even cause safety accidents such as tipping over. In the field of mining machinery, the commonly used cargo compartment heating methods are complex in structure and difficult to operate. Common heating methods are electric heating or fuel heating. Electric heating involves gas circuits, circuits, hydraulics and other components, and has poor reliability. Fuel heating requires the addition of new combustion devices. Both of them not only consume a lot of energy, are not energy-saving and environmentally friendly, but also increase the load of the dump truck, making it difficult to meet the harsh working environment of the mine. Utility Model Content

[0003] In order to solve the above-mentioned problems, the present application provides a vehicle cargo compartment heating device and a vehicle.

[0004] The present application provides a vehicle cargo compartment heating device, comprising:

[0005] a heating assembly, comprising a heating channel for communicating with a heating pipe system of the cargo compartment and an air intake structure communicating with the heating channel;

[0006] A coupling assembly for being arranged below the heating assembly comprises a joint structure for being connected to the exhaust pipe of the vehicle and a rebound structure transmission-connected to the joint structure, wherein the joint structure is arranged below the air intake structure, and the rebound structure is used to generate elastic force under the pressure of the cargo compartment to push the joint structure to engage and connect with the air intake structure.

[0007] In one embodiment, the air intake structure is provided with a planar air intake end joint portion, and the joint structure is provided with a planar air outlet end joint portion.

[0008] In one embodiment, the vehicle cargo compartment heating device further includes a switching valve assembly, which is configured to be installed between the tail gas pipe and the engagement assembly to control the tail gas to enter the heating pipeline system of the cargo compartment through the joint structure and the heating assembly to heat the cargo compartment, or to be directly discharged.

[0009] In one embodiment, the heating channel includes an arc-shaped elbow or a straight pipe. The arc-shaped elbow is configured to be fixed to the front part of the cargo compartment and connected to the inlet of the heating pipeline system of the cargo compartment; the straight pipe is configured to be fixed to the bottom of the cargo compartment and connected to the inlet of the heating pipeline system of the cargo compartment.

[0010] In one embodiment, the switching valve assembly includes a first air outlet pipe section, a valve body, an air inlet pipe section, and a second air outlet pipe section. The first air outlet pipe section is connected to the joint structure and is configured to communicate with the heating assembly. The second air outlet pipe section is configured to communicate with the outside. The air inlet pipe section is configured to introduce the tail gas. The valve body is configured to control the selective communication between the air inlet pipe section and the first air outlet pipe section or the second air outlet pipe section.

[0011] In one embodiment, the switching valve assembly further includes:

[0012] A first valve plate, rotatably arranged in the valve body, configured to close or open the first air outlet pipe section;

[0013] And a second valve plate, rotatably arranged in the valve body, configured to close or open the second air outlet pipe section.

[0014] In one embodiment, the switching valve assembly further includes a valve core, which is rotatably arranged in the valve body. The valve core is configured to control the selective communication between the air inlet pipe section and the first air outlet pipe section or the second air outlet pipe section. Further, the valve core is a spherical valve core.

[0015] In one embodiment, the engagement assembly further includes a first fixing plate and a second fixing plate. The first fixing plate is fixedly connected to the joint structure. The second fixing plate is fixedly connected to the first air outlet pipe section. The elastic structure is arranged between the first fixing plate and the second fixing plate.

[0016] In one embodiment, the elastic structure is at least one of a spring or a corrugated pipe.

[0017] In one embodiment, the engagement assembly further includes a plurality of guiding components. One end of the guiding component passes through the first fixing plate, and the other end passes through the second fixing plate. The elastic structure is sleeved on the guiding component and clamped between the first fixing plate and the second fixing plate.

[0018] In one embodiment, the joint assembly further includes a locking member installed at the end of the guiding member for restricting the up-and-down floating amount of the joint structure.

[0019] An embodiment of another aspect of the present application further provides a vehicle, including an exhaust pipe, a cargo compartment, and a vehicle cargo compartment heating device, where the vehicle cargo compartment heating device is connected between the exhaust pipe and the heating pipeline system of the cargo compartment.

[0020] The beneficial effects of the present application are as follows: Through the vehicle cargo compartment heating device, the reuse of exhaust gas can be realized, and the problems of material freezing in the cargo compartment under low-temperature conditions, resulting in material retention and low transportation efficiency, are solved. The vehicle cargo compartment heating device has a simple structure and is easy to install. At the same time, the provided joint assembly can buffer the pressure from the cargo compartment, and the reaction force during compression makes the intake structure and the joint structure fit tightly, improving the connection stability. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of a vehicle cargo compartment heating device according to an embodiment of the present utility model.

[0023] Figure 2 It is a schematic structural diagram of a heating component according to an embodiment of the present utility model.

[0024] Figure 3 It is a schematic structural diagram of a heating component according to an embodiment of the present utility model.

[0025] Reference Signs: 1. Heating component; 11. Heating channel; 11a. Arc-shaped elbow; 11b. Straight pipe; 12. Intake structure; 2. Joint assembly; 21. Joint structure; 22a. First fixing plate; 22b. Second fixing plate; 23. Rebound structure; 24. Guiding member; 25. Locking member; 3. Switching valve assembly; 31. First outlet pipe section; 32. Valve body; 33. Inlet pipe section; 34. Second outlet pipe section. Detailed Embodiments

[0026] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0029] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0030] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0031] Please refer to Figure 1 , which shows a vehicle cargo compartment heating device provided in one embodiment of the utility model, comprising:

[0032] The heating assembly 1 includes a heating channel 11 for communicating with a heating pipeline system of a cargo compartment and an air intake structure 12 communicating with the heating channel 11;

[0033] The coupling assembly 2 used to be arranged below the heating assembly 1 includes a joint structure 21 for communicating with the exhaust pipe of the vehicle and a rebound structure 23 transmission-connected to the joint structure 21. The joint structure 21 is arranged below the air intake structure 12. The rebound structure 23 is used to generate elastic force under the pressure of the cargo compartment to push the joint structure 21 to engage and communicate with the air intake structure 12.

[0034] When the cargo compartment descends, it drives the heating component 1 to move downward, causing the air intake structure 12 to contact the joint structure 21. When the cargo compartment continues to descend, the resilient structure 23 is compressed under force, driving the entire joint component 2 to move downward, and at the same time providing an upward thrust to the heating component 1, so that the air intake structure 12 and the joint structure 21 are closely fitted, realizing the connection of the exhaust gas transmission channel and buffering the pressure from the cargo compartment.

[0035] In one embodiment, the air intake structure 12 is provided with a planar air intake end joint portion, and the joint structure 21 is provided with a planar air outlet end joint portion.

[0036] If the air intake end joint portion and / or the air outlet end joint portion are set to be conical surfaces, a series of problems will occur. First, the contact surface of the conical surface is incomplete, and poor contact is likely to occur, resulting in leakage of high-temperature exhaust gas during conduction and reducing the heating efficiency. Second, the force-bearing of the conical connection is uneven. Especially in a high-temperature environment, the structure is prone to deformation or loosening, which in turn affects the sealing effect. Finally, the contact area of the conical connection is small. During long-term high-temperature operation, it is easy to cause stress concentration in the structural parts, resulting in deformation and damage of the parts, affecting the stability and service life of the heating system.

[0037] In this embodiment, the air intake end joint portion and the air outlet end joint portion are planar. The setting of the planar connection method, on the one hand, enables the connection between the air intake structure 12 and the joint structure 21 to have a larger contact area, which can provide a more uniform force distribution, improve the stability of the connection between the air intake structure 12 and the joint structure 21, and extend the service life of the parts. On the other hand, it also has lower requirements for the manufacturing accuracy and assembly accuracy of the air intake structure 12 and the joint structure 21, is easier to assemble, realizes the stable and reliable connection of the cargo compartment heating channel and the convenient installation, and at the same time can more effectively seal the air intake structure 12 and the joint structure 21, preventing the leakage of exhaust gas during conduction and reducing the heating efficiency.

[0038] In one embodiment, the vehicle cargo compartment heating device further includes a switching valve assembly 3, which is used to be installed between the tail gas pipe and the joint component 2 to control the exhaust gas to enter the heating pipeline system of the cargo compartment through the joint structure 21 and the heating component 1 to heat the cargo compartment, or to be directly discharged.

[0039] Through the switching valve assembly 3, the reasonable distribution of the exhaust gas can be realized. During the operation of the dump truck, the exhaust gas discharged from the engine enters the switching valve assembly 3. If the cargo compartment does not need to be heated, the switching valve assembly 3 controls the exhaust gas to directly enter the external atmosphere; if the cargo compartment needs to be heated, the switching valve assembly 3 controls the exhaust gas to be connected to the air intake structure 12 of the heating component 1 through the joint structure 21 of the joint component 2, and then enters the heating channel inside the cargo compartment through the heating channel 11 to realize the heating of the cargo compartment. The exhaust gas directly enters the heating pipeline system of the cargo compartment through this vehicle cargo compartment heating device for heating, avoiding the heat loss caused by excessive pipeline connections and improving the heating efficiency.

[0040] In one embodiment, the heating channel 11 includes an arc-shaped elbow 11a or a straight pipe 11b. The arc-shaped elbow 11a is used to be fixed at the front part of the cargo compartment and is connected to the inlet of the heating pipeline system of the cargo compartment; the straight pipe 11b is used to be fixed at the bottom of the cargo compartment and is connected to the inlet of the heating pipeline system of the cargo compartment.

[0041] As Figure 2 shown, in one embodiment, the heating channel 11 is an arc-shaped elbow 11a. The arc-shaped elbow 11a is fixed at the front part of the cargo compartment and is connected to the inlet of the heating pipeline system of the cargo compartment.

[0042] As Figure 3 shown, in one embodiment, the heating channel 11 is a straight pipe 11b. The straight pipe 11b is fixed at the bottom of the cargo compartment and is connected to the inlet of the heating pipeline system of the cargo compartment. Setting the heating channel 11 as the straight pipe 11b shortens the pipeline distance, which is beneficial to reducing the heat loss of the exhaust gas and further improving the heating efficiency.

[0043] In one embodiment, the vehicle cargo compartment heating device further includes a bracket. The bracket is welded to the switching valve assembly 3 and fixes the switching valve assembly 3 on the vehicle frame.

[0044] In one embodiment, the brackets are welded in the middle of the switching valve assembly 3 and are symmetrically distributed. The shape of the bracket is rectangular, which increases the contact area with the switching valve assembly 3. At the same time, the bracket is made of a material with high strength such as steel plate. The switching valve assembly 3 can be fixedly connected to the vehicle frame through the bracket to ensure the stability of the connection. Compared with the traditional hoop connection method, the installation method using the bracket is more firm and reliable.

[0045] In one embodiment, the bracket includes an installation part. The installation part is provided with installation holes, and the installation part is fixed on the vehicle frame through the installation holes.

[0046] In one embodiment, the switching valve assembly 3 includes a first air outlet pipe section 31, a valve body 32, an air inlet pipe section 33 and a second air outlet pipe section 34. The first air outlet pipe section 31 is connected to the joint structure 21 and is used to communicate with the heating component 1. The second air outlet pipe section 34 is used to communicate with the outside. The air inlet pipe section 33 is used to introduce exhaust gas. The valve body 32 is used to selectively control the communication between the air inlet pipe section 33 and the first air outlet pipe section 31 or the second air outlet pipe section 34.

[0047] Please refer to Figure 1, the upward section of the switching valve assembly 3 is the first exhaust pipe section 31, the downward section is the second exhaust pipe section 34, and the section in the middle that communicates with the first exhaust pipe section 31 and the second exhaust pipe section 34 is the intake pipe section 33. The intake pipe section 33 is connected to the tail gas pipe, and the intake pipe section 33 serves as the inlet of the tail gas. The middle part of the switching valve assembly 3 is the valve body 32, which can achieve reasonable distribution of the tail gas to control the heating efficiency of the cargo compartment. The first exhaust pipe section 31 is connected to the joint structure 21 and communicates with the heating assembly 1, and the heating assembly 1 communicates with the cargo compartment, while the second exhaust pipe section 34 leads to the outside atmosphere.

[0048] In one embodiment, the switching valve assembly 3 further includes: a first valve plate rotatably disposed within the valve body 32 for closing or opening the first exhaust pipe section 31; and a second valve plate rotatably disposed within the valve body 32 for closing or opening the second exhaust pipe section 34.

[0049] A first valve plate is provided within the valve body 32 near the first exhaust pipe section 31, and a second valve plate is provided within the valve body 32 near the second exhaust pipe section 34. In this embodiment, one first valve plate and one second valve plate are selected, but this is not limited thereto, and the number of the first valve plate and the second valve plate can be increased according to the sealing effect. The first exhaust pipe section 31, the second exhaust pipe section 34, and the valve body 32 are all round pipes, so the first valve plate and the second valve plate are circular. The first valve plate can fit against the inner wall of the first exhaust pipe section 31, and the second valve plate can fit against the inner wall of the second exhaust pipe section 34 to ensure tightness. Since both the first valve plate and the second valve plate are rotatably disposed within the valve body 32, the flow direction of the tail gas can be controlled by rotating the first valve plate and the second valve plate.

[0050] When it is necessary to heat the cargo compartment, rotate the first valve plate so that the plane where the first valve plate is located is parallel to the axis of the first exhaust pipe section 31, making the first exhaust pipe section 31 in a fully open state. Then rotate the second valve plate so that the outer edge of the second valve plate fits completely against the inner wall of the second exhaust pipe section 34, making the second exhaust pipe section 34 in a fully closed state. At this time, the tail gas entering from the intake pipe section 33 cannot be discharged from the second exhaust pipe section 34 and can only flow entirely to the first exhaust pipe section 31; then it flows from the first exhaust pipe section 31 to the heating assembly 1 and enters the heating pipeline system of the cargo compartment through the heating assembly 1, thereby heating the cargo compartment.

[0051] When the cargo compartment does not need to be heated, rotate the second valve plate so that the plane where the second valve plate is located is perpendicular to the axis of the second air outlet pipe section 34, making the second air outlet pipe section 34 in a fully open state. Then rotate the first valve plate so that the outer ring of the first valve plate fits completely with the inner wall of the first air outlet pipe section 31, making the first air outlet pipe section 31 in a fully closed state. At this time, the exhaust gas entering from the intake pipe section 33 cannot enter the first air outlet pipe section 31 and can only all flow to the second air outlet pipe section 34; then it is discharged into the atmosphere from the second air outlet pipe section 34. Of course, it is not limited to these two situations. The angles of the first valve plate with the first air outlet pipe section 31 and the second valve plate with the second air outlet pipe section 34 can be adjusted to control the heating efficiency of the cargo compartment.

[0052] Both low temperature and high temperature will affect the service life of the cargo compartment, which are situations that need to be avoided. In this embodiment, the flow direction of the exhaust gas is controlled by rotating the first valve plate and the second valve plate; it can be achieved that at low temperature, the exhaust gas flow is controlled to flow to the cargo compartment to heat the cargo compartment; or at high temperature or normal temperature, the exhaust gas cannot flow to the cargo compartment, thereby avoiding the problem of unnecessary heating of the cargo compartment by the exhaust gas, resulting in aging, deformation or damage of the cargo compartment and reducing the service life of the cargo compartment.

[0053] In one embodiment, the switching valve assembly 3 further includes a valve core, the valve core is rotatably arranged in the valve body 32, and the valve core is used to selectively connect the intake pipe section 33 with the first air outlet pipe section 31 or the second air outlet pipe section 34. Further, the valve core is a spherical valve core.

[0054] In one embodiment, the switching valve assembly 3 further includes a valve core, the valve core is a spherical valve core, and a circular through hole with a curvature radius of 90 degrees is provided on the spherical valve core. The spherical valve core is rotatably arranged in the valve body 32 and is used to selectively connect the intake pipe section 33 with the first air outlet pipe section 31 or the second air outlet pipe section 34.

[0055] In this embodiment, the switching valve assembly 3 is a three-way ball valve. The first air outlet pipe section 31, the second air outlet pipe section 34, the intake pipe section 33 and the valve body 32 are all round pipes. The spherical valve core fits completely with the inner wall of the valve body 32 to ensure the sealing performance. By rotating the spherical valve core, the intake pipe section 33 and the first air outlet pipe section 31 are connected in an L shape, or the intake pipe section 33 and the second air outlet pipe section 34 are connected in an L shape, thereby controlling the flow direction of the exhaust gas.

[0056] When the cargo compartment needs to be heated, rotate the spherical valve core to control the circular through-hole to make the intake pipe section 33 and the first outlet pipe section 31 communicate in an L shape, and make the second outlet pipe section 34 in a completely closed state. At this time, the exhaust gas entering from the intake pipe section 33 cannot be discharged from the second outlet pipe section 34 and can only all flow to the first outlet pipe section 31; then it flows from the first outlet pipe section 31 to the heating component 1 and enters the heating pipeline system of the cargo compartment through the heating component 1, thereby heating the cargo compartment.

[0057] When the cargo compartment does not need to be heated, rotate the spherical valve core to control the circular through-hole to make the intake pipe section 33 and the second outlet pipe section 34 communicate in an L shape, and make the first outlet pipe section 31 in a completely closed state. At this time, the exhaust gas entering from the intake pipe section 33 cannot enter the first outlet pipe section 31 and can only all flow to the second outlet pipe section 34; then it is discharged into the atmosphere from the second outlet pipe section 34.

[0058] Both low temperature and high temperature will affect the service life of the cargo compartment, which are situations that need to be avoided. In this embodiment, by rotating the spherical valve core to control the flow direction of the exhaust gas; it can be achieved that at low temperature, the exhaust gas flow direction is controlled to the cargo compartment to heat the cargo compartment; or at high temperature or normal temperature, the exhaust gas cannot flow to the cargo compartment, thereby avoiding the unnecessary heating of the cargo compartment by the exhaust gas, resulting in the problems of aging, deformation or damage of the cargo compartment and reducing the service life of the cargo compartment.

[0059] In one embodiment, the engaging component 2 further includes a first fixing plate 22a and a second fixing plate 22b. The first fixing plate 22a is fixedly connected to the joint structure 21, the second fixing plate 22b is fixedly connected to the first outlet pipe section 31, and the resilient structure 23 is arranged between the first fixing plate 22a and the second fixing plate 22b.

[0060] As Figure 1 shown, the joint structure 21 is arranged above the first outlet pipe section 31, one end can be engaged and communicated with the intake structure 12, the other end is communicated with the first outlet pipe section 31, and the joint structure 21 and the first outlet pipe section 31 are aligned and connected with each other through the first fixing plate 22a and the second fixing plate 22b to ensure that the exhaust gas transmitted through the switching valve assembly 3 does not leak.

[0061] The first fixing plate 22a is fixedly connected to the joint structure 21, the second fixing plate 22b is fixedly connected to the first outlet pipe section 31, and the joint structure 21 and the first outlet pipe section 31 are connected in a relatively movable manner. The resilient structure 23 is arranged between the first fixing plate 22a and the second fixing plate 22b. The resilient structure 23 can drive the first fixing plate 22a to move relatively, thereby buffering the pressure of the cargo compartment driving the heating component 1 on the first outlet pipe section 31.

[0062] When there is material in the cargo box and it is in a falling state, it will cause extrusion to the elastic return structure 23. At this time, it is necessary to heat the cargo box. When the cargo box is lifted, the elastic return structure 23 is not extruded and is in an extended state. At this time, it is not necessary to heat the cargo box.

[0063] In one embodiment, the elastic return structure 23 is at least one of a spring or a bellows.

[0064] In this embodiment, the elastic return structure 23 is a spring. The spring includes two arrangement methods. The first is that multiple small-diameter springs are arranged at intervals between the first fixed plate 22a and the second fixed plate 22b. The second is to select a large-diameter spring and arrange it between the first fixed plate 22a and the second fixed plate 22b. In this embodiment, the first arrangement method is adopted, and four small-diameter springs are selected and arranged symmetrically at intervals between the first fixed plate 22a and the second fixed plate 22b. If one of the springs is damaged, there are still remaining springs to continue working, which has better reliability and stability.

[0065] In one embodiment, the engagement assembly 2 further includes a plurality of guiding members 24. One end of the guiding member 24 passes through the first fixed plate 22a, and the other end passes through the second fixed plate 22b. The elastic return structure 23 is sleeved on the guiding member 24 and clamped between the first fixed plate 22a and the second fixed plate 22b.

[0066] The first fixed plate 22a and the second fixed plate 22b are aligned and connected to each other through the guiding member, so that the first air outlet section 31 is aligned with the heating assembly 1, improving the connection stability.

[0067] In one embodiment, the guiding member 24 is at least one of a guiding stud or a pin shaft.

[0068] In this embodiment, the guiding component 24 is a guiding stud. The guiding stud has two arrangement modes. The first mode is that a plurality of guiding studs with small diameters are evenly arranged along the circumferential direction on the first fixing plate 22a and the second fixing plate 22b, and both ends pass through the first fixing plate 22a and the second fixing plate 22b respectively. The second mode is to select a guiding stud with a large diameter, one end of which passes through the first fixing plate 22a and the other end passes through the second fixing plate 22b. In this embodiment, the first arrangement mode is adopted, and four guiding studs with small diameters are selected and symmetrically distributed on the first fixing plate 22a and the second fixing plate 22b, and both ends pass through the first fixing plate 22a and the second fixing plate 22b respectively. The guiding stud plays a guiding role, restricting the sliding freedom degree and rotational freedom degree of the joint assembly 2 in the horizontal direction, and it can only move in the up and down direction. In this embodiment, the resilient structure 23 is a corrugated pipe. The corrugated pipe is sleeved on each guiding stud and clamped between the first fixing plate 22a and the second fixing plate 22b. If one of the corrugated pipes is damaged, there are still remaining corrugated pipes to continue working, which has better reliability and stability.

[0069] In one embodiment, the joint assembly 2 further includes a locking component 25. The locking component 25 is installed at the end of the guiding component 24 and is used to limit the up and down floating amount of the joint structure 21.

[0070] The locking components 25 are respectively installed at the two ends of the guiding component 24. Through the locking component 25 and the resilient structure 23, the joint assembly 2 has a certain up and down movement range. In this embodiment, the locking component 25 is a locking nut, and the locking nut can adjust the up and down floating amount of the joint structure 21 according to actual needs.

[0071] The vehicle cargo compartment heating device of this embodiment can be applied to mining dump trucks, and of course, it can also be applied to other vehicles such as heavy trucks, which is not limited here.

[0072] Another embodiment of the present utility model further provides a vehicle, including an exhaust pipe, a cargo compartment, and a vehicle cargo compartment heating device. The vehicle cargo compartment heating device is connected between the exhaust pipe and the heating pipeline system of the cargo compartment.

[0073] The vehicle in this embodiment adopts the vehicle cargo compartment heating device as described above, which can realize the reuse of exhaust gas, solve the problems of material freezing in the cargo compartment under low temperature conditions, resulting in material retention and low transportation efficiency. At the same time, the provided joint assembly can buffer the pressure from the cargo compartment, and the reaction thrust during compression makes the intake structure and the joint structure fit tightly, improving the connection stability. The heating efficiency of the cargo compartment is controlled by switching the valve assembly to control the flow direction of the exhaust gas, extending the service life of the cargo compartment and making the heating of the exhaust gas controllable. At the same time, the exhaust gas coming out of the exhaust pipe directly enters the heating pipeline system of the cargo compartment through the vehicle cargo compartment heating device, avoiding heat loss caused by excessive pipeline connections and excessive vehicle load, reducing the vehicle weight and improving the heating efficiency.

[0074] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A vehicle cargo compartment heating device, characterized in that, Comprising: A heating component (1), including a heating channel (11) for communicating with the heating pipeline system of the cargo compartment and an air intake structure (12) communicating with the heating channel (11); An engaging component (2) for being arranged below the heating component (1), including a joint structure (21) for communicating with the vehicle's tailpipe and a resilient structure (23) in transmission connection with the joint structure (21). The joint structure (21) is arranged below the air intake structure (12), and the resilient structure (23) is used to generate an elastic force under the pressure of the cargo compartment to push the joint structure (21) to engage and communicate with the air intake structure (12).

2. The vehicle cargo compartment heating device according to claim 1, wherein The air intake structure (12) is provided with a planar air intake end engaging portion, and the joint structure (21) is provided with a planar air outlet end engaging portion.

3. The vehicle cargo compartment heating device according to claim 1, characterized in that, The vehicle cargo compartment heating device further includes a switching valve assembly (3) for being installed between the tailpipe and the engaging component (2) to control the tail gas to enter the heating pipeline system of the cargo compartment through the joint structure (21) and the heating component (1) to heat the cargo compartment, or to be directly discharged.

4. The vehicle cargo compartment heating device according to claim 1, characterized in that, The heating channel (11) includes an arc-shaped elbow (11a) or a straight pipe (11b). The arc-shaped elbow (11a) is used to be fixed at the front part of the cargo compartment and connected to the inlet of the heating pipeline system of the cargo compartment; the straight pipe (11b) is used to be fixed at the bottom of the cargo compartment and connected to the inlet of the heating pipeline system of the cargo compartment.

5. The vehicle cargo compartment heating device according to claim 3, characterized in that, The switching valve assembly (3) includes a first exhaust pipe section (31), a valve body (32), an intake pipe section (33), and a second exhaust pipe section (34). The first exhaust pipe section (31) is connected to the joint structure (21) for communicating with the heating component (1), the second exhaust pipe section (34) is used to communicate with the outside, the intake pipe section (33) is used to introduce the tail gas, and the valve body (32) is used to control the selective communication between the intake pipe section (33) and the first exhaust pipe section (31) or the second exhaust pipe section (34).

6. The vehicle cargo compartment heating device according to claim 5, characterized in that, The switching valve assembly (3) further includes: A first valve plate rotatably arranged in the valve body (32) for closing or opening the first exhaust pipe section (31); And a second valve plate rotatably arranged in the valve body (32) for closing or opening the second exhaust pipe section (34).

7. The vehicle cargo compartment heating device according to claim 5 or 6, characterized in that, The engaging component (2) further includes a first fixing plate (22a) and a second fixing plate (22b). The first fixing plate (22a) is fixedly connected to the joint structure (21), the second fixing plate (22b) is fixedly connected to the first exhaust pipe section (31), and the resilient structure (23) is arranged between the first fixing plate (22a) and the second fixing plate (22b).

8. The vehicle cargo compartment heating device according to claim 7, characterized in that, The joint assembly (2) further includes a plurality of guiding members (24). One end of each guiding member (24) passes through the first fixing plate (22a), and the other end passes through the second fixing plate (22b). The resilient structure (23) is sleeved on the guiding members (24) and clamped between the first fixing plate (22a) and the second fixing plate (22b).

9. The vehicle cargo compartment heating device according to claim 8, wherein, The joint assembly (2) further includes a locking member (25). The locking member (25) is installed at the end of the guiding member (24) for restricting the vertical floating amount of the joint structure (21).

10. A vehicle, characterized in that, It includes an exhaust pipe, a cargo compartment, and the vehicle cargo compartment heating device according to any one of claims 1 to 9. The vehicle cargo compartment heating device is connected between the exhaust pipe and the heating pipeline system of the cargo compartment.

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