Water supply system gas circuit module and engineering machinery

Abstract

The utility model provides a water supply system gas circuit module and engineering machinery, including: a gas circuit assembly including a pressure regulating valve and a multi-way ball valve, one end of the pressure regulating valve being used for connecting a gas storage tank, the other end being used for connecting a water tank through the multi-way ball valve; the mounting frame comprises a transverse plate and a vertical plate connected with the transverse plate, the transverse plate is used for being connected with a radiator, the vertical plate and the radiator define a mounting space with an access hole, the pressure regulating valve and the multi-way ball valve are both contained in the mounting space, and the pressure regulating valve and the multi-way ball valve are both connected with the transverse plate. According to the utility model, the mounting rack is integrated on the radiator, so that the gas circuit assembly can be positioned and mounted and can be integrated with the radiator, the mounting compactness is improved, the mounting space is provided with the access hole, parts are more convenient to overhaul and replace, and the pressure regulating valve is convenient to adjust.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering machinery technical field especially relates to a water supply system gas circuit module and engineering machinery. BACKGROUND

[0002] The gas circuit module of the water supply system of the engineering machinery such as the mixer truck is the control device connected between the pressurized water tank and the chassis air tank, and is generally used for controlling the pressurization and pressure relief of the water tank. In order to meet the daily flushing demand of the staff or the water injection demand in the mixing drum, the self-provided water tank of the mixer truck needs to be pressurized to improve the flow rate. The staff can conveniently control the pressurization and pressure relief of the water tank through the gas circuit module, so as to complete the above-mentioned work.

[0003] The prior art usually needs an additional closed box body to complete the assembly of the internal parts of the gas circuit module, occupies a large position, and the closed box body cannot adjust the pressure of the internal valve after completing the welding, which greatly reduces the convenience of using the gas circuit module, and when checking or repairing and replacing the internal parts, the box body needs to be disassembled, and the convenience of maintenance is poor. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a water supply system gas circuit module and engineering machinery, which aims to solve the technical problems of poor convenience of using and poor convenience of maintenance of the gas circuit module in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a water supply system gas circuit module, which comprises: a gas circuit assembly comprising a pressure regulating valve and a multi-way ball valve, one end of the pressure regulating valve is used for connecting an air tank, the other end is used for connecting a water tank through the multi-way ball valve; a mounting frame comprising a horizontal plate and a vertical plate connected with the horizontal plate, the horizontal plate is used for connecting with a radiator, and the vertical plate and the radiator enclose a mounting space with an inspection opening, the pressure regulating valve and the multi-way ball valve are accommodated in the mounting space, and the pressure regulating valve and the multi-way ball valve are connected with the horizontal plate.

[0006] In the utility model embodiment, the gas circuit module further comprises an adjusting frame, the pressure regulating valve is connected with the horizontal plate through a first connecting piece, a first adjusting hole is arranged on the horizontal plate, a second adjusting hole is arranged on the adjusting frame, the first adjusting hole and the second adjusting hole are mutually at an included angle in the length direction, the first connecting piece penetrates the first adjusting hole and the second adjusting hole in sequence, and the first connecting piece can adjust the movement relative to the length direction of the first adjusting hole and the second adjusting hole.

[0007] In this embodiment of the utility model, the adjusting frame includes: a base plate, which is arranged horizontally and the second adjusting hole is opened in the base plate; a guide plate, which is connected to the base plate and arranged vertically; the pressure regulating valve is used to connect to the gas storage tank through a first connector; and the guide plate is provided with a first guide hole for the first connector to pass through.

[0008] In this embodiment of the invention, the size of the guide plate gradually increases from top to bottom.

[0009] In this embodiment of the utility model, the water supply system gas circuit module further includes a reinforcing plate connected to the gas circuit assembly. The reinforcing plate is located above the horizontal plate and is used to connect the radiator.

[0010] In this embodiment of the utility model, the air circuit assembly further includes a pressure gauge connected to the pressure regulating valve. The pressure gauge is used to display the current pressure of the pressure regulating valve, and the vertical plate has an observation window through which the pressure gauge passes.

[0011] In this embodiment of the utility model, the reinforcing plate is provided with a limiting groove for limiting the multi-way ball valve, the pressure regulating valve and the pressure gauge are connected through a second connector, and the reinforcing plate is provided with a second guide hole for guiding the second connector.

[0012] In this embodiment of the utility model, the multi-way ball valve is connected to an adjusting handle, the vertical plate has a clearance hole for the adjusting handle to pass through, and the adjusting handle is located outside the installation space; and / or, the horizontal plate has a plurality of connecting holes, the connecting holes are used to connect the radiator through a second connector, and the plurality of connecting holes are spaced apart along the outer periphery of the horizontal plate.

[0013] In this embodiment of the utility model, a weight-reducing hole is provided on the horizontal plate, and the weight-reducing hole is located between the air passage assembly and the heat sink; and / or, a triangular reinforcing frame is connected to the lower part of the horizontal plate.

[0014] This utility model also proposes an engineering machinery, which includes the water supply system gas circuit module as described above.

[0015] Through the above technical solution, the gas circuit module of the water supply system provided in this utility model embodiment has the following beneficial effects:

[0016] The pressure regulating valve draws air from the air tank through an air pipe, adjusts it to the required pressure via a pressure valve, and then inputs it to the water tank for pressurization via a multi-way ball valve. The horizontal plate of the mounting bracket connects to the radiator, allowing the entire water supply system air circuit module to be fixed to the radiator. The radiator provides support for the water supply system air circuit module, and the close proximity of the radiator and water tank facilitates integrated installation of the water supply system air circuit module and radiator, resulting in a more compact installation space. The vertical plate, horizontal plate, and side wall of the radiator can enclose an installation space to accommodate the air circuit components, facilitating the positioning and installation of the pressure regulating valve and multi-way ball valve. This eliminates the constraints of the existing box-like structure, allowing for maintenance and replacement of the air circuit components through the inspection port in the installation space. Furthermore, the pressure of the pressure regulating valve can be adjusted during use. This utility model, by integrating the mounting bracket into the radiator, ensures the positioning and installation of the air circuit components while also integrating them with the radiator, improving installation compactness. The installation space includes an inspection port, making component maintenance and replacement more convenient and facilitating the adjustment of the pressure regulating valve.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a partial structural schematic diagram of an engineering machinery according to one embodiment of the present utility model;

[0020] Figure 2 This is a structural schematic diagram of the gas circuit module of the water supply system according to one embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the mounting bracket in the gas circuit module of the water supply system according to an embodiment of the present invention, viewed from one angle.

[0022] Figure 4 This is a structural schematic diagram of the mounting bracket in the gas circuit module of the water supply system according to one embodiment of the present invention, viewed from another perspective;

[0023] Figure 5 This is a schematic diagram of the adjusting bracket in the gas circuit module of the water supply system according to an embodiment of the present invention, viewed from one angle.

[0024] Figure 6 This is a schematic diagram of the regulating bracket in the gas circuit module of the water supply system according to one embodiment of the present invention, viewed from another perspective.

[0025] Figure 7This is a structural schematic diagram of the regulating bracket in the gas circuit module of the water supply system according to an embodiment of the present invention, viewed from another angle.

[0026] Figure 8 This is a schematic diagram of the reinforcing plate structure of the gas circuit module of the water supply system according to one embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures

[0028] Label Name

[0029] 100 Water Supply System Gas Circuit Module 221 Observation Window

[0030] 1. Air passage assembly 222 clearance hole

[0031] 11 Pressure regulating valve 3 Installation space

[0032] 12-way ball valve with 4 adjusting brackets

[0033] 121 Adjusting handle 41 Second adjusting hole

[0034] 13 Pressure gauge 42 Base plate

[0035] 14 First joint 43 Guide plate

[0036] 15 Second connector 431 First guide hole

[0037] 2 mounting brackets and 5 reinforcing plates

[0038] 21 horizontal plates, 51 limiting grooves

[0039] 211 First adjusting hole 52 Second guide hole

[0040] 212 connecting hole 53 through hole

[0041] 213 weight reduction holes 6 triangular reinforcement frame

[0042] 214 mounting holes 200 radiator

[0043] 22 vertical boards Detailed Implementation

[0044] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0045] The gas circuit module of the water supply system according to this utility model is described below with reference to the accompanying drawings.

[0046] like Figure 1 and Figure 2As shown in the embodiment of this utility model, the water supply system gas circuit module 100 includes a gas circuit component 1 and a mounting frame 2. The gas circuit component 1 includes a pressure regulating valve 11 and a multi-way ball valve 12. One end of the pressure regulating valve 11 is used to connect to the gas storage tank, and the other end is used to connect to the water tank through the multi-way ball valve 12. The mounting frame 2 includes a horizontal plate 21 and a vertical plate 22 connected to the horizontal plate 21. The horizontal plate 21 is used to connect to the radiator 200, and the vertical plate 22 and the radiator 200 form an installation space 3 with an inspection port. The pressure regulating valve 11 and the multi-way ball valve 12 are both accommodated in the installation space 3, and the pressure regulating valve 11 and the multi-way ball valve 12 are both connected to the horizontal plate 21.

[0047] Understandably, the water supply system air circuit module 100 in this embodiment is mainly used for construction machinery such as concrete mixer trucks. The construction machinery includes a water supply system with a water tank and a radiator 200. The horizontal plate 21 can be connected to the bottom surface of the radiator 200, and the vertical plate 22 is arranged parallel to the side of the radiator 200. The horizontal plate 21 and the vertical plate 22 can be connected vertically, and the cross-section of the mounting bracket 2 is "L" shaped. The air tank on the chassis can be located below the water supply system air circuit module 100. The pressure regulating valve 11 can be connected to the air tank through an air pipe. The water tank can be located above the water supply system air circuit module 100. The multi-way ball valve 12 can be connected to the water tank through an air pipe and supply air to the water tank. The multi-way ball valve 12 can be a double-way ball valve in the prior art. The lower end of the multi-way ball valve 12 is open to the atmosphere. By rotating the adjusting handle 121 of the multi-way ball valve 12, the airflow can be adjusted to enter or exit the water tank. In this embodiment, the top and two sides of the installation space 3 are open, so that the top and two sides together form an inspection port, which facilitates the adjustment, inspection and replacement of the air circuit assembly 1.

[0048] In this embodiment, the pressure regulating valve 11 can draw air from the air tank through the air pipe, adjust it to the required pressure through the pressure valve, and input it to the water tank for pressurization through the multi-way ball valve 12. The horizontal plate 21 of the mounting bracket 2 is connected to the radiator 200, which can fix the water supply system air circuit module 100 as a whole on the radiator 200. The radiator 200 can provide support for the water supply system air circuit module 100, and the radiator 200 and the water tank are close to each other, so that the water supply system air circuit module 100 and the radiator 200 are installed and integrated. The installation space 3 is more compact. The vertical plate 22, the horizontal plate 21 and the side wall of the radiator 200 can form an installation space 3 to accommodate the air circuit component 1, which facilitates the positioning and installation of the pressure regulating valve 11 and the multi-way ball valve 12. It eliminates the box constraint in the prior art. The air circuit component 1 can be inspected and replaced through the inspection port of the installation space 3, and the pressure of the pressure regulating valve 11 can be adjusted during use. In this embodiment, by integrating the mounting bracket 2 into the radiator 200, it is possible to ensure that the air circuit component 1 is positioned and installed, while also integrating it with the radiator 200, thereby improving the compactness of the installation. The installation space 3 is provided with an inspection port, making it more convenient to inspect and replace parts, and also facilitating the adjustment of the pressure regulating valve 11 during use.

[0049] like Figures 4 to 7 As shown, the gas path module also includes an adjustment frame 4. The pressure regulating valve 11 is connected to the horizontal plate 21 via a first connector. The horizontal plate 21 is provided with a first adjustment hole 211, and the adjustment frame 4 is provided with a second adjustment hole 41. The length directions of the first adjustment hole 211 and the second adjustment hole 41 form an angle with each other. The first connector passes through the first adjustment hole 211 and the second adjustment hole 41 in sequence, and the first connector can be adjusted relative to the length direction of the first adjustment hole 211 and the second adjustment hole 41. In this embodiment, the first adjustment hole 211 and the second adjustment hole 41 can be elongated holes. In one embodiment, the first adjustment hole 211 and the second adjustment hole 41 are both oblong holes, and the oblong holes of the two plates are perpendicular. The first adjustment hole 211 can extend in the left-right direction, and the second adjustment hole 41 can extend in the front-back direction. The first connector can be a bolt.

[0050] The adjusting bracket 4 and the horizontal plate 21 can be connected by bolts. The first adjusting hole 211 and the second adjusting hole 41 are at an angle to each other along their length, ensuring omnidirectional adjustability during installation. The installation space 3 is flexibly adjustable for different models and sizes of pressure regulating valves 11 and multi-way ball valves 12, allowing for the selection and matching of various components as needed, ensuring the compatibility of the water supply system gas circuit module 100. The number of first adjusting holes 211 and second adjusting holes 41 is the same and they are set in a one-to-one correspondence. Specifically, the number of first adjusting holes 211 and second adjusting holes 41 can be set according to actual usage requirements, such as... Figure 4 and Figure 7 As shown, there are two first adjustment holes 211 and two second adjustment holes 41, and the two first adjustment holes 211 are spaced apart in the front-back direction.

[0051] like Figure 2As shown, the regulating frame 4 includes a base plate 42 and a guide plate 43. The base plate 42 is horizontally arranged and the second regulating hole 41 is opened in the base plate 42. The guide plate 43 is connected to the base plate 42 and is vertically arranged. The pressure regulating valve 11 is used to connect to the gas storage tank through the first connector 14. The guide plate 43 is provided with a first guide hole 431 for the first connector 14 to pass through. In this embodiment, the base plate 42 and the guide plate 43 can be integrally bent or formed by welding ribs. The base plate 42 is supported by the horizontal plate 21. In this embodiment, the first connector 14 can be a lock nut type straight pipe connector. The first connector 14 passes through the first guide hole 431. The first guide hole 431 is located above the base plate 42 and can guide the first connector 14, making the gas pipeline connection smoother. The mounting frame 2, together with the regulating frame 4, can improve the stability of the gas circuit module 100 of the water supply system and also limit the pressure regulating valve 11. The pressure regulating valve 11 and the multi-way ball valve 12 can be sequentially arranged in the left-right direction at the connection between the horizontal plate 21 and the vertical plate 22, which can further improve the structural compactness of the gas circuit module 100 of the water supply system. The base plate 42 and the guide plate 43 are vertically connected, and the adjusting bracket 4 is located on one side of the pressure regulating valve 11 and the multi-way ball valve 12, and the opening between the base plate 42 and the guide plate 43 faces the pressure regulating valve 11.

[0052] like Figures 5 to 7 As shown, the dimensions of the guide plate 43 gradually increase from top to bottom. The guide plate 43 is vertically positioned, and its width gradually increases from top to bottom, which improves the structural strength of the guide plate 43. Figure 8 As shown, in one embodiment, the water supply system air circuit module 100 further includes a reinforcing plate 5 connected to the air circuit assembly 1. The reinforcing plate 5 is located above the horizontal plate 21 and is used to connect the radiator 200. Both the adjusting bracket 4 and the reinforcing plate 5 are located within the installation space 3. In this embodiment, the reinforcing plate 5 is elongated and horizontally arranged, extending in the left-right direction. The reinforcing plate 5 may be provided with multiple through holes 53 connected to the radiator 200. By cooperating with the upper reinforcing plate 5 and the lower horizontal plate 21, the radiator 200 is connected together, which can improve the connection strength between the water supply system air circuit module 100 and the radiator 200. The reinforcing plate 5 can be connected to at least one component in the air circuit assembly 1.

[0053] Specifically, such as Figure 2 and Figure 3 As shown, the pneumatic assembly 1 also includes a pressure gauge 13 connected to the pressure regulating valve 11. The pressure gauge 13 is used to display the current pressure of the pressure regulating valve 11. The vertical plate 22 has an observation window 221 through which the pressure gauge 13 passes. In this embodiment, the pressure gauge 13 is connected to the rear end interface of the pressure regulating valve 11 via a pneumatic tube. The pressure reading on the pressure gauge 13 can be observed in real time through the observation window 221. In this embodiment, the shape of the observation window 221 is adapted to the shape of the pressure gauge 13, and the observation window 221 can be a circular hole.

[0054] It should be noted that the reinforcing plate 5 is provided with a limiting groove 51 for limiting the multi-way ball valve 12. The pressure regulating valve 11 and the pressure gauge 13 are connected through the second connector 15. The reinforcing plate 5 has a second guide hole 52 for guiding the second connector 15. In this embodiment, the limiting groove 51 and the multi-way ball valve 12 are shaped to match, such as... Figure 8 As shown, the limiting groove 51 can be a square groove, and the second guide hole 52 can be a round hole, which guides the second connector 15 and ensures the smooth connection of the pipeline between the pressure regulating valve 11 and the pressure gauge 13.

[0055] In this embodiment of the invention, a multi-way ball valve 12 is connected to an adjusting handle 121. A clearance hole 222 is provided on the vertical plate 22 for the adjusting handle 121 to pass through, and the adjusting handle 121 is located outside the mounting space 3. A plurality of connecting holes 212 are provided on the horizontal plate 21 for connecting the radiator 200 via a second connector. These connecting holes 212 are spaced apart along the outer periphery of the horizontal plate 21. In this embodiment, the second connector can be a bolt. The horizontal plate 21 is a rounded rectangular plate, and the four connecting holes 212 can be located at the corners of the horizontal plate 21. The horizontal plate 21 can also have a mounting hole 214 for connecting to the multi-way ball valve 12, located near the connection between the horizontal plate 21 and the vertical plate 22. The adjusting handle 121 can pass through the clearance hole 222 and connect to the valve body of the multi-way ball valve 12 within the mounting space 3, allowing the adjusting handle 121 to be located outside the mounting space 3 for convenient operation.

[0056] Understandably, a weight-reducing hole 213 is provided on the horizontal plate 21, and the weight-reducing hole 213 is located between the air passage assembly 1 and the radiator 200; and a triangular reinforcing frame 6 is connected to the bottom of the horizontal plate 21. In this embodiment, the weight-reducing hole 213 is located in the middle of the horizontal plate 21, and the weight-reducing hole 213 can be a waist hole, which can ensure the installation strength of the horizontal plate 21 while making the horizontal plate 21 lightweight. In order to facilitate the connection between the mounting frame 2 and the subframe of the construction machinery, a triangular reinforcing frame 6 can be provided at the bottom of the mounting frame 2, and a welding surface for welding connection with the subframe is provided on the triangular reinforcing frame 6.

[0057] This utility model also proposes an engineering machinery, which includes the water supply system air circuit module 100 as described above. The specific structure of the water supply system air circuit module 100 is as described in the above embodiments. Since the engineering machinery adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. In one embodiment, the engineering machinery can be applied to a concrete mixer truck.

[0058] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas circuit module for a water supply system, characterized in that, The gas circuit module (100) of the water supply system includes: The gas circuit assembly (1) includes a pressure regulating valve (11) and a multi-way ball valve (12). One end of the pressure regulating valve (11) is used to connect to the gas storage tank, and the other end is used to connect to the water tank through the multi-way ball valve (12). The mounting bracket (2) includes a horizontal plate (21) and a vertical plate (22) connected to the horizontal plate (21). The horizontal plate (21) is used to connect to the radiator (200) and the vertical plate (22) and the radiator (200) form an installation space (3) with an inspection port. The pressure regulating valve (11) and the multi-way ball valve (12) are both accommodated in the installation space (3) and are connected to the horizontal plate (21).

2. The gas circuit module of the water supply system according to claim 1, characterized in that, The gas circuit module also includes an adjustment frame (4), the pressure regulating valve (11) is connected to the horizontal plate (21) through a first connector, the horizontal plate (21) is provided with a first adjustment hole (211), the adjustment frame (4) is provided with a second adjustment hole (41), the first adjustment hole (211) and the second adjustment hole (41) are at an angle to each other in the length direction, the first connector passes through the first adjustment hole (211) and the second adjustment hole (41) in sequence, and the first connector can be adjusted and moved relative to the length direction of the first adjustment hole (211) and the second adjustment hole (41).

3. The gas circuit module of the water supply system according to claim 2, characterized in that, The adjusting frame (4) includes: The base plate (42) is arranged horizontally and the second adjustment hole (41) is opened on the base plate (42); The guide plate (43) is connected to the base plate (42) and is arranged vertically. The pressure regulating valve (11) is used to connect to the gas storage tank through the first connector (14). The guide plate (43) is provided with a first guide hole (431) through which the first connector (14) passes.

4. The gas circuit module of the water supply system according to claim 3, characterized in that, The size of the guide plate (43) gradually increases from top to bottom.

5. The gas circuit module for a water supply system according to any one of claims 1 to 4, characterized in that, The water supply system gas circuit module (100) also includes a reinforcing plate (5) connected to the gas circuit assembly (1), the reinforcing plate (5) being located above the horizontal plate (21) and used to connect the radiator (200).

6. The gas circuit module of the water supply system according to claim 5, characterized in that, The gas circuit assembly (1) also includes a pressure gauge (13) connected to the pressure regulating valve (11), the pressure gauge (13) is used to display the current pressure of the pressure regulating valve (11), and the vertical plate (22) has an observation window (221) through which the pressure gauge (13) passes.

7. The gas circuit module of the water supply system according to claim 6, characterized in that, The reinforcing plate (5) is provided with a limiting groove (51) for limiting the multi-way ball valve (12). The pressure regulating valve (11) and the pressure gauge (13) are connected through a second connector (15). The reinforcing plate (5) is provided with a second guide hole (52) for guiding the second connector (15).

8. The gas circuit module for a water supply system according to any one of claims 1 to 4, characterized in that, The multi-way ball valve (12) is connected to an adjusting handle (121), and the vertical plate (22) has a clearance hole (222) for the adjusting handle (121) to pass through. The adjusting handle (121) is located outside the installation space (3). And / or, The horizontal plate (21) has a plurality of connecting holes (212) for connecting the heat sink (200) through a second connector. The plurality of connecting holes (212) are spaced apart along the outer periphery of the horizontal plate (21).

9. The gas circuit module for a water supply system according to any one of claims 1 to 4, characterized in that, The horizontal plate (21) is provided with a weight reduction hole (213), which is located between the air passage assembly (1) and the radiator (200); And / or, A triangular reinforcing frame (6) is connected to the lower part of the horizontal plate (21).

10. An engineering machinery, characterized in that, The engineering machinery includes the gas circuit module (100) of the water supply system as described in any one of claims 1 to 9.

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