High pressure six-way valve

Abstract

This utility model discloses a high-pressure six-way valve, including a rotor, a stator, a valve cover, and a push rod assembly. The rotor and stator are pre-tightened by compression through the push rod assembly. The outer end of the push rod assembly is connected to the valve cover, which is connected to the valve seat of the high-pressure six-way valve. The push rod assembly includes a push rod, a disc spring, a pressure block, and an adjusting block. The disc spring is located between the pressure block and the adjusting block. The adjusting block is threadedly connected to the push rod, and the pressure block is slidably connected to the push rod. This utility model uses a retractable disc spring in the push rod to compress the pressure block, and adjusts the pre-tightening force by changing the distance between the adjusting block and the pressure block, thereby changing the pressure resistance and improving the application range of a single high-pressure six-way valve, thus reducing costs.

Description

Technical Field

[0001] This utility model relates to a sample injection technology, and more particularly to a high-pressure six-way valve. Background Technology

[0002] High-pressure valves are a core component of autosamplers, and their required pressure resistance changes with different applications. However, currently, the pressure resistance of high-pressure valves is fixed, leading to frequent replacements for different applications and increasing the cost of autosamplers. Utility Model Content

[0003] To address the shortcomings of the prior art, the present invention aims to provide a high-pressure six-way valve that can adjust the preload, thereby changing the pressure resistance, increasing the application range of a single high-pressure six-way valve, and thus reducing costs.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a high-pressure six-way valve, including a rotor, a stator, a valve cover and a push rod assembly, wherein the rotor and the stator are pre-tightened by the push rod assembly, the outer end of the push rod assembly is connected to the valve cover, and the valve cover is connected to the valve seat of the high-pressure six-way valve.

[0005] The push rod assembly includes a push rod, a disc spring, a pressure block, and an adjusting block. The disc spring is located between the pressure block and the adjusting block. The adjusting block is threadedly connected to the push rod, and the pressure block is slidably connected to the push rod.

[0006] Optionally, the push rod has a first part and a second part, wherein the diameter of the second part is smaller than the diameter of the first part;

[0007] The pressure block is slidably connected in the second part, and the adjusting block is threadedly connected in the first part.

[0008] Optionally, the end of the second part of the push rod is further provided with a radially arranged through hole, and a pin is connected in the through hole;

[0009] The end of the second part of the push rod passes through the rotor and presses the rotor by the pin.

[0010] By adopting the above technical solution, this utility model sets a retractable disc spring in the push rod to squeeze the pressure block, and adjusts the preload by changing the distance between the adjusting block and the pressure block, thereby changing the pressure resistance, improving the application range of a single high-pressure six-way valve, and thus reducing the cost. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 As shown, this utility model discloses a high-pressure six-way valve, including a rotor 100, a stator 200, a valve cover 300, and a push rod assembly 400. The rotor 100, stator 200, and push rod assembly 400 are all disposed within the valve seat. The rotor 100 and stator 200 are pre-tightened by the compression of the push rod assembly 400. The outer end of the push rod assembly 400 is connected to the valve cover, and the inner end is connected to the rotor 100. The valve cover 300 is fixedly connected to the valve seat.

[0015] In this invention, the push rod assembly 400 includes a push rod 410, a disc spring 420, a pressure block 430, and an adjusting block 440. The push rod 410 passes through the valve cover 300, stator 200, and rotor 100. The disc spring 420 is located between the pressure block 430 and the adjusting block 440. Due to the connection of the disc spring 420, the preload between the pressure block 420 and the adjusting block 440 changes with the compression of the disc spring 420. Specifically, the adjusting block 440 is threadedly connected to the push rod 410, and the pressure block 430 is slidably connected to the push rod 410.

[0016] In this utility model, the push rod 410 is provided with a first part and a second part. The diameter of the second part is smaller than that of the first part. The surface of the first part is provided with external threads, and the surface of the second part is smooth. The pressure block 430 is slidably connected to the second part, and the adjusting block 440 is threadedly connected to the first part. This arrangement ensures that the pressure block 430 is confined in the second part and applies a preload to the stator 200.

[0017] In this utility model, the end of the second part of the push rod 410 is also provided with a through hole arranged in a radial direction. A pin 450 is connected in the through hole. The end of the second part of the push rod 410 passes through the rotor 100 and is pressed by the pin 450, so that the push rod 410 is connected between the rotor 100 and the valve cover 300.

[0018] This invention incorporates a retractable disc spring in the push rod 410 to compress the pressure block 430, and adjusts the preload by changing the distance between the adjusting block 440 and the pressure block 430, thereby altering the valve's pressure resistance and increasing the application range of a single high-pressure six-way valve, thus reducing costs.

[0019] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0020] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A high pressure six-way valve, characterized by It includes a rotor, a stator, a valve cover, and a push rod assembly. The rotor and stator are pre-tightened by the push rod assembly. The outer end of the push rod assembly is connected to the valve cover, and the valve cover is connected to the valve seat of the high-pressure six-way valve. The push rod assembly includes a push rod, a disc spring, a pressure block, and an adjusting block. The disc spring is located between the pressure block and the adjusting block. The adjusting block is threadedly connected to the push rod, and the pressure block is slidably connected to the push rod.

2. The high pressure six-way valve of claim 1, wherein The push rod has a first part and a second part, wherein the diameter of the second part is smaller than the diameter of the first part; The pressure block is slidably connected in the second part, and the adjusting block is threadedly connected in the first part.

3. The high pressure six-way valve of claim 2, wherein, The end of the second part of the push rod is also provided with a through hole arranged in a radial direction, and a pin is connected in the through hole; The end of the second part of the push rod passes through the rotor and presses the rotor by the pin.

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