Convenient hand-operated air valve for special vehicle

Abstract

The utility model discloses a kind of convenient manual air valve for special vehicle, including disc assembly, air pipe, connecting rod, the first through hole and the second through hole are symmetrically opened on the air pipe outer wall, the first through hole and the second through hole are located on the same horizontal plane, and the distance between the first through hole and the second through hole is equal to the inner diameter of air pipe, the disc assembly is located in air pipe and is set between the first through hole and the second through hole, and disc assembly is circular as a whole and diameter is equal to the inner diameter of air pipe;The front end of connecting rod is inserted from the first through hole, and it is passed out from the second through hole after passing through disc assembly, and rotating connecting rod can drive disc assembly to rotate.The utility model is simple in structure, light in weight, low in cost and easy to install;Simple mechanical structure makes it durable, and the fault tolerance rate is higher than electric valve, and it can be used according to the different needs of passengers and set in air pipe at any position.

Description

Technical Field

[0001] This utility model relates to a convenient manual air valve for special vehicles. Background Technology

[0002] Special vehicles generally have good sealing properties, which makes the interior quite stuffy in summer and cold in winter. Therefore, special vehicles need to be equipped with air conditioning or heating systems to regulate the temperature and create a comfortable environment. The air supply to various devices in special vehicles is mostly achieved through ductwork installed inside the vehicle. Each duct is individually connected to the equipment requiring air supply and is arranged according to usage requirements. Currently, most ductwork uses electric valves for air supply control. However, electric valves have a low fault tolerance rate, and their installation positions are fixed. If the ductwork needs to be rerouted or additional branches added, it is difficult to reinstall the electric valves. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a convenient manual air valve for special vehicles that is simple in structure, low in cost, and easy to install.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is: a convenient manual air valve for special vehicles, including a disc assembly, an air duct, and a connecting rod. The outer wall of the air duct has a first through hole and a second through hole symmetrically opened. The first through hole and the second through hole are located on the same horizontal plane, and the distance between the first through hole and the second through hole is equal to the inner diameter of the air duct. The disc assembly is located inside the air duct and is disposed between the first through hole and the second through hole. The disc assembly is circular in shape and its diameter is equal to the inner diameter of the air duct. The front end of the connecting rod is inserted from the first through hole, passes through the disc assembly, and exits from the second through hole. The disc assembly can be rotated by rotating the connecting rod.

[0005] The aforementioned convenient manual air valve for special vehicles has a threaded front end on the connecting rod. After the front end of the connecting rod passes through the second through hole, a washer and a gasket are sequentially fitted on it and a limiting nut is used for limiting. The middle part of the connecting rod is a square body, and the rear end of the connecting rod is a cylinder with a groove.

[0006] The aforementioned convenient manual air valve for special vehicles also includes a handle, which is locked in a groove at the rear end of the connecting rod and fixed to the connecting rod as a whole by welding.

[0007] The aforementioned special vehicle uses a convenient manual air valve, and the handle is equipped with a rubber sleeve.

[0008] The aforementioned convenient manual air valve for special vehicles includes a disc assembly comprising a semi-disc and a connecting rod cylinder. The arc-shaped edge of the semi-disc is chamfered to form an arc surface. The two semi-discs are arranged opposite each other, and the connecting rod cylinder is located between the two semi-discs. The two semi-discs and the connecting rod cylinder are welded together to form a disc structure. The middle of the connecting rod cylinder is a square hollow that matches the square body.

[0009] The aforementioned special vehicle uses a convenient manual air valve, and the arc surface of the semi-circular disc is vulcanized with rubber.

[0010] The aforementioned special vehicle uses a convenient manual air valve, the handle of which is equipped with an air volume gauge, the air volume gauge has an arc-shaped scale groove, the edge of the scale groove is engraved with a scale for indicating the air volume, and the two ends of the scale are engraved with the words "open" and "closed" respectively.

[0011] The aforementioned special vehicle uses a convenient manual air valve. The outer wall of the air duct has a corresponding scale marking for the "open" position where a bolt is welded. The threaded part of the bolt faces upward and passes through the scale groove. The threaded pointer is tightened onto the bolt.

[0012] The aforementioned special vehicles use convenient manual air valves, with the disc assembly, connecting rod, and handle set at any position on the air duct as needed.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model has a simple structure, light weight, low cost and easy installation; the simple mechanical structure makes it durable and has a higher fault tolerance than electric valves. It can be set at any position in the air duct according to the different needs of passengers and can meet the needs of rerouting or adding branches.

[0015] 2. This utility model uses the simplest and most intuitive way to engrave the scale, on, and off on the outside, making it convenient to use. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 for Figure 1 AA sectional view.

[0018] Figure 3 for Figure 1 Front view of the middle disc assembly.

[0019] Figure 4 for Figure 1 Side view of the middle disc assembly. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 , Figure 2As shown, a convenient manual air valve for special vehicles includes a disc assembly 1, an air duct 2, a connecting rod 3, and a handle 4. The outer wall of the air duct 2 has a first through hole and a second through hole symmetrically opened. The first through hole and the second through hole are located on the same horizontal plane, and the distance between the first through hole and the second through hole is equal to the inner diameter of the air duct 2. The disc assembly 1 is located inside the air duct 2 and is positioned between the first through hole and the second through hole. The disc assembly 1 is circular in shape and its diameter is equal to the inner diameter of the air duct 2. The front end of the connecting rod 3 is inserted through the first through hole, passes through the disc assembly 1, and exits through the second through hole. Rotating the connecting rod 3 can drive the disc assembly 1 to rotate.

[0022] The front end of the connecting rod 3 is threaded. After the front end of the connecting rod 3 passes through the second through hole, a washer 6 and a washer 9 are sequentially fitted on it and a limiting nut 10 is used for limiting. The middle part of the connecting rod 3 is a square body, and the rear end of the connecting rod 3 is a cylinder with a groove.

[0023] The handle 4 is inserted into the groove at the rear end of the connecting rod 3 and fixed to the connecting rod 3 as a whole by welding. During welding, the direction of the handle 4 should be parallel to the middle part of the connecting rod 3. The handle 4 is provided with a rubber sleeve 5, which can also be directly cast. The handle 4 is provided with an air volume gauge 11, which has an arc-shaped scale groove 12. The scale groove 12 is engraved with scales for indicating air volume, and the two ends of the scale are engraved with the words "open" and "closed". The outer wall of the air duct 2 is welded with a bolt 7 at the position corresponding to the "open" mark on the scale. The threaded part of the bolt 7 faces upward and passes through the scale groove 12. The threaded pointer 8 is tightened on the bolt 7.

[0024] like Figure 3 , Figure 4 As shown, the disc assembly 1 includes a semi-disc 13 and a connecting rod cylinder 14. The arc-shaped edges of the semi-disc 13 are chamfered to form an arc surface. Two semi-discs 13 are arranged opposite each other, and the connecting rod cylinder 14 is located between the two semi-discs 13. The two semi-discs 13 and the connecting rod cylinder 14 are welded together to form a disc structure. The middle of the connecting rod cylinder 14 is a square hollow that matches the square body. The arc surface of the semi-disc 13 is vulcanized and coated with rubber.

[0025] The disc assembly 1, connecting rod 3, and handle 4 can be set at any position in the air duct 2 as needed.

[0026] The working process of this utility model is as follows: According to the passenger's needs, select the air duct 2 where the manual air valve needs to be installed inside the vehicle. The air duct 2 can be any position within the vehicle's air duct system. Make a first and second through hole corresponding to each other horizontally on the air duct 2. Insert the connecting rod 3 into the first through hole of the air duct 2, then through the connecting rod cylinder 14 of the disc assembly 1 and into the second through hole, so that the handle 4, connecting rod 3, disc assembly 1, and air duct 2 are connected as a whole. Install the gasket 6 onto the threaded portion of the connecting rod 3 extending out of the air duct 2. Then tighten the washer 9 and the limiting nut 10 on the outside of the gasket 6. In this way, the connecting rod 3 achieves linkage between the handle 4, disc assembly 1, and air duct 2. Rotate the handle 4 to a position perpendicular to the air duct 2. Weld the bolt 7 onto the air duct 2 below the "open" sign on the handle 4, ensuring that the threaded portion of the bolt 7 faces upwards and extends into the scale groove 12. Then tighten the nut onto the bolt 7, allowing the manual air valve to be freely adjusted to the required airflow scale. Because the semicircular disc 13 has vulcanized rubber, it can rotate flexibly and has a certain degree of damping, which also ensures the sealing performance when the manual air valve is closed.

Claims

1. A convenient manual air valve for special vehicles, characterized in that: The device includes a disc assembly, a duct, and a connecting rod. The outer wall of the duct has a first through hole and a second through hole symmetrically arranged on it. The first and second through holes are located on the same horizontal plane, and the distance between the first and second through holes is equal to the inner diameter of the duct. The disc assembly is located inside the duct and is positioned between the first and second through holes. The disc assembly is circular and its diameter is equal to the inner diameter of the duct. The front end of the connecting rod is inserted through the first through hole, passes through the disc assembly, and exits through the second through hole. Rotating the connecting rod can drive the disc assembly to rotate.

2. The convenient manual air valve for special vehicles according to claim 1, characterized in that: The front end of the connecting rod is threaded. After the front end of the connecting rod passes through the second through hole, a washer and a gasket are sequentially fitted on it and a limiting nut is used to limit its position. The middle part of the connecting rod is a square body, and the rear end of the connecting rod is a cylinder with a groove.

3. The convenient manual air valve for special vehicles according to claim 2, characterized in that: It also includes a handle, which is inserted into a groove at the rear end of the connecting rod and fixed to the connecting rod as a whole by welding.

4. The convenient manual air valve for special vehicles according to claim 3, characterized in that: The handle is equipped with a rubber sleeve.

5. The convenient manual air valve for special vehicles according to claim 3, characterized in that: The disk assembly includes a semi-disc and a connecting rod cylinder. The arc-shaped edge of the semi-disc is chamfered to form an arc surface. The two semi-discs are arranged opposite each other, and the connecting rod cylinder is located between the two semi-discs. The two semi-discs and the connecting rod cylinder are welded together to form a disk structure. The middle of the connecting rod cylinder is a square hollow that matches the square body.

6. The convenient manual air valve for special vehicles according to claim 5, characterized in that: The arc surface of the semi-circular disk is vulcanized and coated with rubber.

7. The convenient manual air valve for special vehicles according to claim 5, characterized in that: The handle is equipped with an air volume gauge, which has an arc-shaped scale groove. The scale groove is engraved with markings for indicating air volume, and the two ends of the scale are engraved with the words "open" and "closed".

8. The convenient manual air valve for special vehicles according to claim 7, characterized in that: The outer wall of the duct has a corresponding mark indicating the position of the "open" mark. The bolt is welded at the mark, with the threaded part of the bolt facing upward and passing through the mark groove. The threaded pointer is tightened onto the bolt.

9. The convenient manual air valve for special vehicles according to claim 3, characterized in that: The disc assembly, connecting rod, and handle can be installed at any position on the duct as needed.

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