Carriage bottom plate heating transfer box

Abstract

The utility model discloses a compartment floor heating transfer box which comprises a box body, an air inlet, an air outlet I and an air outlet II are arranged on the box body, the air inlet, the air outlet I and the air outlet II are respectively arranged on three side faces of the box body and are arranged at 90 degrees, a transfer shaft is arranged on one side, close to the air outlet I and the air outlet II, in the box body, a transfer plate is fixed on the transfer shaft, and the transfer plate is fixed on the transfer shaft. The size of the conversion plate is larger than the caliber of the first air outlet and the caliber of the second air outlet, and by rotating the conversion shaft, the conversion plate can be attached to the first air outlet or the second air outlet to achieve air path conversion. One end of the conversion shaft is in threaded connection with the inner bottom wall of the box body, a first sealing nut is fixed to the inner bottom wall, a penetrating hole is formed in the top of the box body, the outer end of the penetrating hole is fixedly connected with a second sealing nut, and the upper end of the conversion shaft is in threaded connection with the second sealing nut and penetrates out of the second sealing nut. The sealing device solves the problem of sealing between the hole and the rotating shaft in a high-temperature medium state, is low in manufacturing and maintenance cost and good in trial effect, and has popularization value.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile exhaust treatment, and in particular relates to a vehicle compartment floor heating conversion box. Background Art

[0002] With the rapid development of the economy, the demand for dump trucks is increasing and the frequency of use is also increasing. However, when the weather is cold, especially in extremely cold areas, the transported soil or coal will freeze with the floor of the carriage. When unloading, the frozen objects on the floor are difficult to unload, which seriously affects the unloading efficiency and affects the operation of the dump truck. In order to solve this problem, the hot air discharged from the exhaust pipe of the dump truck engine is switched to the connection hole of the cargo box floor through the installation of conversion boxes, interfaces and other parts in the pipeline, and the hot air is switched to the bottom of the cargo box through the connection hole of the cargo box floor, and finally discharged from the rear of the cargo box to achieve the effect of heating the cargo box; when heating is not required, the hot air is converted to the normal exhaust port through the conversion box, thereby realizing the comprehensive utilization of exhaust gas.

[0003] The inventor discovered during the process of implementing the utility model:

[0004] The high-temperature gas exhausted by the engine is used to switch the exhaust heat flow to the floor of the large compartment for heating through the conversion box when it is cold. Under normal circumstances, the pipeline goes through the normal exhaust port, but the movable shaft of the switching conversion box needs to overcome the rotating seal under the high-temperature flame roasting condition. The seal between the hole of the static conversion box and the rotating shaft becomes a technical problem, which is prone to failure and has high maintenance costs. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a vehicle compartment floor heating conversion box.

[0006] To this end, the technical solution of the utility model is a car floor heating conversion box, including a box body, the box body is provided with an air inlet, an air outlet 1, and an air outlet 2, characterized in that the air inlet, the air outlet 1, and the air outlet 2 are arranged on three sides of the box body and are arranged at 90 degrees to each other.

[0007] A conversion shaft is provided on one side of the box body near the air outlet 1 and the air outlet 2, and a conversion plate is fixed on the conversion shaft. The size of the conversion plate is larger than the diameter of the air outlet 1 and the air outlet 2. By rotating the conversion shaft, the conversion plate can be respectively fitted with the air outlet 1 or the air outlet 2 to realize gas path conversion;

[0008] One end of the conversion shaft is threadedly connected to the inner bottom wall of the box body, and a sealing nut 1 is fixed on the inner bottom wall. A through hole is provided on the top of the box body, and a sealing nut 2 is fixedly connected to the outer end of the through hole. The upper end of the conversion shaft is threadedly connected to the sealing nut 2 and passes through the sealing nut 2.

[0009] A further improvement to the above technical solution is that a conversion handle is provided at the upper end of the second sealing nut to facilitate manual operation.

[0010] A further improvement to the above technical solution is that a through hole is provided at a position corresponding to the inner bottom wall of the box body and the sealing nut 1, so as to facilitate maintenance of the thread of the sealing nut 1.

[0011] A further improvement to the above technical solution is that: the sealing nut 1 is replaced by a shaft sleeve and is rotationally connected to the conversion shaft; the sealing nut 2 is replaced by a sealing convex sleeve and is welded and fixed to the through hole on the top of the box body; the conversion shaft is rotationally connected to the sealing convex sleeve, and the raised portion of the sealing convex sleeve extends downward into the box body; a sealing concave sleeve is provided on the conversion shaft, and a small gap is formed between the raised portion of the sealing convex sleeve and the groove of the sealing concave sleeve, and the gap is 0.05-0.1mm; the sealing convex sleeve and the sealing concave sleeve are used for connection, which can reduce the pressure of the gas, and the rotational connection can reduce the maintenance frequency and maintenance cost.

[0012] A further improvement to the above technical solution is that the inner ends of the first and second air outlets are provided with inclined surfaces, and when the conversion plate fits with the first and second air outlets, the axis of the inclined surface, the conversion plate and the conversion shaft are located in the same plane. This arrangement can reduce the rotation angle of the conversion handle and save more effort.

[0013] Beneficial effects: Although the utility model has a simple structure, it solves the sealing problem between the hole and the rotating shaft that do not have strict sealing requirements, and has low production and maintenance costs. In particular, it solves the sealing problem under high-temperature medium conditions. The practical trial results are good and it has promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the internal section view of the conversion box of the utility model. Figure 1 (The air inlet and outlet are not shown in the figure).

[0015] Figure 2 This is the internal section view of the conversion box of the utility model. Figure 2 (The air inlet and outlet are not shown in the figure).

[0016] Figure 3 It is a front sectional view of the utility model.

[0017] Figure 4 yes Figure 3 Left view of .

[0018] Figure 5 yes Figure 3 A top view of the conversion handle in two states.

[0019] As shown in the figure: 1. Box body; 2. Air inlet; 3. Air outlet 1; 4. Air outlet 2; 5. Conversion shaft; 6. Conversion plate; 7. Sealing nut 1; 8. Sealing nut 2; 9. Conversion handle; 10. Bushing; 11. Sealing convex sleeve; 12. Sealing concave sleeve. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0021] The utility model Figures 1 to 5 As shown:

[0022] A vehicle floor heating conversion box comprises a box body 1, on which an air inlet 2, an air outlet 1 3, and an air outlet 2 4 are arranged. The air inlet, the air outlet 1, and the air outlet 2 are arranged on three sides of the box body at 90 degrees to each other.

[0023] A conversion shaft 5 is provided on one side of the box body near the air outlet 1 and the air outlet 2, and a conversion plate 6 is fixed on the conversion shaft. The size of the conversion plate is larger than the diameter of the air outlet 1 and the air outlet 2. By rotating the conversion shaft, the conversion plate can be respectively fitted with the air outlet 1 or the air outlet 2 to realize gas path conversion;

[0024] One end of the conversion shaft 5 is threadedly connected to the inner bottom wall of the box body, and a sealing nut 7 is fixed on the inner bottom wall. A through hole is provided on the top of the box body, and a sealing nut 2 8 is fixedly connected to the outer end of the through hole. The upper end of the conversion shaft is threadedly connected to the sealing nut 2 and passes through the sealing nut 2. The upper end of the sealing nut 2 is provided with a conversion handle 9 in the vertical direction, which is safe and convenient for manual operation.

[0025] Among them, a through hole is provided at the inner bottom wall of the box body corresponding to the sealing nut 1, which is convenient for maintenance of the thread of the sealing nut 1.

[0026] In this embodiment, the sealing nut 1 7 can be replaced by a sleeve 10 and rotatably connected to the conversion shaft. At the same time, the sealing nut 2 8 is replaced by a sealing convex sleeve 11 and welded to the through hole on the top of the box body. The conversion shaft is rotatably connected to the sealing convex sleeve. The raised portion of the sealing convex sleeve 11 extends downward into the box body. A sealing concave sleeve 12 is provided on the conversion shaft 5. A small gap is formed between the raised portion of the sealing convex sleeve and the groove of the sealing concave sleeve, and the gap is 0.05-0.1mm. The sealing convex sleeve and the sealing concave sleeve are used for connection, which can reduce the pressure of the gas. The rotatably connected connection can reduce the maintenance frequency and maintenance cost.

[0027] In this embodiment, the inner ends of air outlet one and air outlet two are set with inclined surfaces. When the conversion plate is in contact with air outlet one and air outlet two, the axis lines of the inclined surface, the conversion plate and the conversion shaft are located in the same plane. This setting can reduce the rotation angle of the conversion handle and save more effort.

[0028] The working principle of this utility model:

[0029] The high-temperature airflow discharged from the engine enters the body of the conversion box from the air inlet and can be discharged through the air outlet 1 or one of the outlets of the air outlet;

[0030] When the conversion handle is in state 1, the air outlet 2 is blocked and the air flow is discharged from the air outlet 1;

[0031] When the conversion handle is in state 2, the air outlet 1 is blocked and the air flow is discharged from the air outlet 2.

[0032] Parts not described in detail in this specification are well-known technologies in the art.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A car floor heating conversion box, comprising a box body, the box body is provided with an air inlet, a first air outlet, and a second air outlet, characterized in that: The air inlet, air outlet 1 and air outlet 2 are located on three sides of the box, at 90° to each other. A conversion shaft is provided on one side of the box body near the air outlet 1 and the air outlet 2, and a conversion plate is fixed on the conversion shaft. The size of the conversion plate is larger than the diameter of the air outlet 1 and the air outlet 2. By rotating the conversion shaft, the conversion plate can be respectively fitted with the air outlet 1 or the air outlet 2 to realize gas path conversion; One end of the conversion shaft is threadedly connected to the inner bottom wall of the box body, and a sealing nut 1 is fixed on the inner bottom wall. A through hole is provided on the top of the box body, and a sealing nut 2 is fixedly connected to the outer end of the through hole. The upper end of the conversion shaft is threadedly connected to the sealing nut 2 and passes through the sealing nut 2.

2. According to claim 1, a car floor heating conversion box is characterized in that: The upper end of the sealing nut 2 is provided with a vertical conversion handle.

3. A carriage floor heating conversion box according to claim 1 or 2, characterized in that: A through hole is provided at a position corresponding to the sealing nut on the inner bottom wall of the box body.

4. A carriage floor heating conversion box according to claim 1 or 2, characterized in that: The sealing nut 1 is replaced by a shaft sleeve and is rotatably connected with the conversion shaft. The sealing nut 2 is replaced by a sealing convex sleeve and is welded and fixed in the through hole on the top of the box body. The conversion shaft is rotatably connected with the sealing convex sleeve. The raised part of the sealing convex sleeve extends downward into the box body. A sealing concave sleeve is provided on the conversion shaft. The raised part of the sealing convex sleeve and the groove of the sealing concave sleeve are matched with a small gap, and the gap is 0.05-0.1mm.

5. The vehicle floor heating conversion box according to claim 3, characterized in that: The inner ends of the first and second air outlets are arranged with inclined surfaces. When the conversion plate fits with the first and second air outlets, the axis of the inclined surface, the conversion plate and the conversion shaft are located in the same plane.

6. The vehicle floor heating conversion box according to claim 4, characterized in that: The inner ends of the first and second air outlets are arranged with inclined surfaces. When the conversion plate fits with the first and second air outlets, the axis of the inclined surface, the conversion plate and the conversion shaft are located in the same plane.

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