Switching device for evaporator of excavator

Abstract

The utility model provides a switching device for an evaporator of an excavator, which belongs to the technical field of temperature control equipment of excavators and comprises a metal switching block, an upper cold air outlet hole, an upper cold air return hole, an upper warm air outlet hole and an upper warm air return hole. A side cold air outlet hole, a side cold air return hole, a side warm air outlet hole and a side warm air return hole are inwards formed in the side surface; threaded holes are formed in the edges of the upper cold air outlet hole, the upper cold air return hole, the upper warm air outlet hole, the upper warm air return hole, the side cold air outlet hole, the side cold air return hole, the side warm air outlet hole and the side warm air return hole; the eight adapter pipes are provided with annular grooves, and sealing rings are arranged in the annular grooves; one end of each adapter pipe provided with the sealing ring is inserted into the air hole; one ends of the eight lock accessories are respectively sleeved on the adapter pipes, and the other ends of the eight lock accessories are locked on the threaded holes through screws. The utility model has the advantage that the operation and maintenance convenience of the evaporator of the excavator is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator temperature control equipment, in particular to a switching device for an excavator evaporator. Background Art

[0002] Because excavators operate outdoors, the cabin often experiences extreme temperatures, often hot or cold. To ensure a comfortable working environment for the driver, air conditioning is required for temperature regulation. Due to the unique operating environment and long operating hours of excavators, conventional air conditioners used in cars would not provide adequate temperature regulation if directly used in excavators due to size limitations and other factors. Therefore, a dedicated excavator-specific air conditioner is required.

[0003] Excavator air conditioning requires an evaporator. This evaporator needs to output and return the generated cold or hot air, requiring metal pipes to transport the air (cold or hot). However, traditional evaporators use vertical pipes, with the top of the vertically installed metal pipe connected to the evaporator body and the bottom extending through the evaporator shell. This structure makes evaporator maintenance difficult through the inspection port below the evaporator when a malfunction occurs.

[0004] Therefore, how to provide a switching device for an excavator evaporator to improve the convenience of operation and maintenance of the excavator evaporator has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a switching device for an excavator evaporator, so as to improve the convenience of operation and maintenance of the excavator evaporator.

[0006] The utility model is implemented as follows: a switching device for an excavator evaporator, comprising:

[0007] A metal adapter block, with an upper cold air outlet hole, an upper cold air return hole, an upper heating air outlet hole and an upper heating return hole provided at the top downward, and a side cold air outlet hole, a side cold air return hole, a side heating air outlet hole and a side heating return hole provided inward on the side; the upper cold air outlet hole is connected with the side cold air outlet hole; the upper cold air return hole is connected with the side cold air return hole; the upper heating air outlet hole is connected with the side heating air outlet hole; the upper heating air return hole is connected with the side heating return hole; each of the upper cold air outlet hole, upper cold air return hole, upper heating air outlet hole, upper heating return hole, side cold air outlet hole, side cold air return hole, side heating air outlet hole and side heating return hole is provided with at least one threaded hole on its edge;

[0008] Eight adapter tubes, each with an annular groove on its outer wall at one end, each of which has a sealing ring in its inner wall; one end of each adapter tube with a sealing ring is respectively inserted into the upper cooling air outlet, the upper cooling air return hole, the upper heating air outlet, the upper heating air return hole, the side cooling air outlet, the side cooling air return hole, the side heating air outlet or the side heating air return hole;

[0009] One end of the eight locking accessories is respectively sleeved on one of the transfer tubes, and the other end is locked on the threaded hole by screws.

[0010] Furthermore, the aperture of the upper cooling air outlet hole is consistent with that of the side cooling air outlet hole; the aperture of the upper cooling air return hole is consistent with that of the side cooling air return hole; the aperture of the upper heating air outlet hole is consistent with that of the side heating air outlet hole; the aperture of the upper heating air return hole is consistent with that of the side heating air return hole.

[0011] Furthermore, the aperture of the upper heating air outlet hole is smaller than the aperture of the upper heating air return hole.

[0012] The advantages of the present invention are:

[0013] By arranging an upper cold air outlet hole, an upper cold air return hole, an upper heating air outlet hole and an upper heating air return hole on the top of the metal adapter block, and arranging a side cold air outlet hole, a side cold air return hole, a side heating air outlet hole and a side heating air return hole on the side; the upper cold air outlet hole is connected with the side cold air outlet hole, the upper cold air return hole is connected with the side cold air return hole, the upper heating air outlet hole is connected with the side heating air outlet hole, and the upper heating air return hole is connected with the side heating air return hole; eight adapter tubes are respectively inserted into the upper cold air outlet hole, the upper cold air return hole, the upper heating air outlet hole and the upper heating air return hole through one end provided with a sealing ring The air outlet hole, the upper heating air return hole, the side cooling air outlet hole, the side cooling air return hole, the side heating air outlet hole or the side heating air return hole, that is, the metal adapter block is used to transfer the adapter tube 90 degrees, so that the adapter tube can extend from the side of the evaporator shell. Since the evaporator is installed on the outside of the excavator, when the evaporator needs to be repaired, it can be disassembled and repaired through the inspection port on the side of the evaporator shell, thereby greatly improving the convenience of operation and maintenance of the excavator evaporator, that is, the back-opening structure is adopted to facilitate maintenance and greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 The utility model is a structural schematic diagram of a switching device for an excavator evaporator.

[0016] Figure 2 It is a structural schematic diagram of the transfer tube and the lock accessory of the utility model.

[0017] Figure 3The utility model is a schematic diagram of a use state of a switching device for an excavator evaporator.

[0018] Marking Description:

[0019] 100 - An adapter device for an excavator evaporator, 1 - Metal adapter block, 2 - Adapter tube, 3 - Lock accessory, 4 - Evaporator housing, 11 - Upper cold air outlet hole, 12 - Upper cold air return hole, 13 - Upper heating air outlet hole, 14 - Upper heating air return hole, 15 - Side cold air outlet hole, 16 - Side cold air return hole, 17 - Side heating outlet hole, 18 - Side heating air return hole, 19 - Threaded hole, 21 - Annular groove, 22 - Sealing ring, 41 - Inspection door, 42 - Inspection port. DETAILED DESCRIPTION

[0020] The embodiment of the present utility model solves the technical problem that the evaporator in the prior art adopts a vertical pipe form, that is, the top end of the vertically arranged metal pipe is connected to the evaporator body, and the bottom end passes through the evaporator shell. When the evaporator of this structure encounters a fault and needs to be repaired, it needs to be repaired from the inspection port below the evaporator, which brings great inconvenience to the operation and maintenance of the excavator evaporator. The utility model achieves the technical effect of greatly improving the convenience of operation and maintenance of the excavator evaporator.

[0021] The technical solution in the embodiment of the present invention is to solve the above-mentioned problem. The overall idea is as follows: the transfer tube 2 is transferred 90 degrees through the metal transfer block 1, so that the transfer tube 2 can extend from the side of the evaporator shell 4. Since the evaporator is installed on the outside of the excavator, when the evaporator needs to be repaired, the inspection door 41 on the side of the evaporator shell 4 is opened, and the evaporator can be disassembled and repaired through the inspection port 42 on the side of the evaporator shell 4, so as to improve the convenience of operation and maintenance of the excavator evaporator.

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Please refer to Figures 1 to 3 As shown, a preferred embodiment of the present invention is a switching device 100 for an excavator evaporator, comprising:

[0024] A metal adapter block 1, with an upper cold air outlet 11, an upper cold air return 12, an upper heating air outlet 13 and an upper heating air return 14 on the top downward, and a side cold air outlet 15, a side cold air return 16, a side heating air outlet 17 and a side heating air return 18 on the side inward; the upper cold air outlet 11 is connected to the side cold air outlet 15; the upper cold air return 12 is connected to the The side cooling air return hole 16 is connected; the upper heating air outlet 13 is connected to the side heating air outlet 17; the upper heating air return hole 14 is connected to the side heating air return hole 18; at least one threaded hole 19 is provided on the edge of each of the upper cooling air outlet 11, the upper cooling air return hole 12, the upper heating air outlet 13, the upper heating air return hole 14, the side cooling air outlet 15, the side cooling air return hole 16, the side heating air outlet 17 and the side heating air return hole 18;

[0025] The eight transfer tubes 2 have an annular groove 21 on the outer wall at one end, and a sealing ring 22 is provided in each of the annular grooves 21; one end of each transfer tube 2 with a sealing ring 22 is respectively inserted into the upper cooling air outlet 11, the upper cooling air return hole 12, the upper heating air outlet 13, the upper heating air return hole 14, the side cooling air outlet 15, the side cooling air return hole 16, the side heating air outlet 17 or the side heating air return hole 18; the transfer tubes 2 are used for transmitting cooling air or hot air;

[0026] Eight locking components 3 have one end respectively sleeved on one of the adapter tubes 2 and the other end fastened to the threaded hole 19 via a screw (not shown); the locking components 3 are used to fasten the adapter tube 2 to the metal adapter block 1 .

[0027] The aperture of the upper cold air outlet hole 11 is consistent with that of the side cold air outlet hole 15; the aperture of the upper cold air return hole 12 is consistent with that of the side cold air return hole 16; the aperture of the upper heating air outlet hole 13 is consistent with that of the side heating air outlet hole 17; the aperture of the upper heating air return hole 14 is consistent with that of the side heating air return hole 18.

[0028] The aperture of the upper heating air outlet 13 is smaller than that of the upper heating air return hole 14. That is, when hot air is transmitted through the upper heating air outlet 13 and the side heating air outlet 17, due to the smaller aperture, it is in a high-pressure injection state, which can effectively increase the circulation speed of the hot air.

[0029] Working principle of this utility model:

[0030] During cooling, cold air circulates from the transfer tube 2, the upper cold air outlet 11, the side cold air outlet 15, the transfer tube 2, the upper cold air return hole 12, the side cold air return hole 16 and the transfer tube 2 in sequence; during heating, hot air circulates from the transfer tube 2, the upper hot air outlet 13, the side hot air outlet 17, the transfer tube 2, the upper hot air return hole 14, the side hot air return hole 18 and the transfer tube 2 in sequence.

[0031] In summary, the advantages of the present invention are:

[0032] By arranging an upper cold air outlet hole, an upper cold air return hole, an upper heating air outlet hole and an upper heating air return hole on the top of the metal adapter block, and arranging a side cold air outlet hole, a side cold air return hole, a side heating air outlet hole and a side heating air return hole on the side; the upper cold air outlet hole is connected with the side cold air outlet hole, the upper cold air return hole is connected with the side cold air return hole, the upper heating air outlet hole is connected with the side heating air outlet hole, and the upper heating air return hole is connected with the side heating air return hole; eight adapter tubes are respectively inserted into the upper cold air outlet hole, the upper cold air return hole, the upper heating air outlet hole and the upper heating air return hole through one end provided with a sealing ring The air outlet hole, the upper heating air return hole, the side cooling air outlet hole, the side cooling air return hole, the side heating air outlet hole or the side heating air return hole, that is, the metal adapter block is used to transfer the adapter tube 90 degrees, so that the adapter tube can extend from the side of the evaporator shell. Since the evaporator is installed on the outside of the excavator, when the evaporator needs to be repaired, it can be disassembled and repaired through the inspection port on the side of the evaporator shell, thereby greatly improving the convenience of operation and maintenance of the excavator evaporator, that is, the back-opening structure is adopted to facilitate maintenance and greatly reduce costs.

[0033] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A switching device for an excavator evaporator, characterized by: include: A metal adapter block, with an upper cold air outlet hole, an upper cold air return hole, an upper heating air outlet hole and an upper heating return hole provided at the top downward, and a side cold air outlet hole, a side cold air return hole, a side heating air outlet hole and a side heating return hole provided inward on the side; the upper cold air outlet hole is connected with the side cold air outlet hole; the upper cold air return hole is connected with the side cold air return hole; the upper heating air outlet hole is connected with the side heating air outlet hole; the upper heating air return hole is connected with the side heating return hole; each of the upper cold air outlet hole, upper cold air return hole, upper heating air outlet hole, upper heating return hole, side cold air outlet hole, side cold air return hole, side heating air outlet hole and side heating return hole is provided with at least one threaded hole on its edge; Eight adapter tubes, each with an annular groove on its outer wall at one end, each of which has a sealing ring in its inner wall; one end of each adapter tube with a sealing ring is respectively inserted into the upper cooling air outlet, the upper cooling air return hole, the upper heating air outlet, the upper heating air return hole, the side cooling air outlet, the side cooling air return hole, the side heating air outlet or the side heating air return hole; One end of the eight locking accessories is respectively sleeved on one of the transfer tubes, and the other end is locked on the threaded hole by screws.

2. The adapter device for an excavator evaporator according to claim 1, characterized in that: The aperture of the upper cooling air outlet hole is consistent with that of the side cooling air outlet hole; the aperture of the upper cooling air return hole is consistent with that of the side cooling air return hole; the aperture of the upper heating air outlet hole is consistent with that of the side heating air outlet hole; the aperture of the upper heating air return hole is consistent with that of the side heating air return hole.

3. The adapter device for an excavator evaporator according to claim 1, characterized in that: The aperture of the upper heating air outlet hole is smaller than the aperture of the upper heating air return hole.

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