High-pressure-resistant valve sleeve

Abstract

The utility model relates to the technical field of valve sleeves, and discloses a high-pressure-resistant valve sleeve which comprises a main body assembly. The main body assembly comprises an upper valve sleeve, and a lower valve sleeve is arranged at the bottom of the upper valve sleeve. A plurality of mounting holes are formed in the upper valve sleeve and the lower valve sleeve in a penetrating manner; pre-fixing assemblies are symmetrically arranged on the upper valve sleeve, and each pre-fixing assembly comprises a mounting plate fixedly connected to the outer side wall of the lower valve sleeve; the valve sleeve pre-fixing device has the advantages that the valve sleeve is pre-fixed, an operator takes up the lower valve sleeve, the limiting block is extruded by the mounting frame to enter the mounting plate, when the lower valve sleeve is tightly attached to the upper valve sleeve, the limiting block pops up automatically, then the lower valve sleeve slides, the mounting plate extrudes the T-shaped block on one side, and when the mounting frame completely passes through the T-shaped block on one side, the limiting block pops up automatically. The T-shaped blocks automatically rebound to limit the mounting plate, and the mounting plate is limited through the two T-shaped blocks, so that the lower valve sleeve is pre-fixed, and the problem that the mounting holes between the valve sleeves are inconvenient to align is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve sleeves, in particular to a high-pressure resistant valve sleeve. Background Art

[0002] The fuel metering valve is installed on the oil pump of the electronically controlled high-pressure common rail system of diesel engines. It is an important actuator of the high-pressure common rail fuel inlet system. The fuel metering valve uses PWM to adjust the driving current of the fuel metering valve according to the ECU instructions to control the amount of oil entering the plunger cavity of the high-pressure oil pump, thereby accurately controlling the fuel pressure of the high-pressure common rail system.

[0003] In the prior art, a fuel metering valve is generally connected to a valve sleeve and other connecting parts. However, when a worker installs the valve sleeve, it is necessary to align the mounting holes between the valve sleeves and then use fasteners such as fastening bolts to install and fix them. As a result, it takes a long time to align the mounting holes of the valve sleeves, which affects the installation of the worker and reduces the installation efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a high-pressure resistant valve sleeve, which has the advantage of pre-fixing the valve sleeve to facilitate installation and screwing the fastening bolts into the mounting holes, thereby solving the problem of inconvenience in aligning the mounting holes between the valve sleeves due to the lack of a pre-fixing device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure resistant valve sleeve, comprising a main body component; the main body component comprises an upper valve sleeve, a lower valve sleeve is arranged at the bottom of the main body component; mounting holes, the upper valve sleeve and the lower valve sleeve are both provided with mounting holes, and multiple mounting holes are provided on each of the upper valve sleeve; pre-fixing components are symmetrically arranged on the upper valve sleeve, and each group of the pre-fixing components comprises: a mounting plate, fixedly connected to the outer side wall of the lower valve sleeve; a fixing plate, fixedly connected to the inner side wall of the mounting plate; a limit block, inserted into the mounting plate, and fixed to the mounting plate. The plate is slidably connected, and two are symmetrically arranged; Spring 1, each of the limit blocks is provided with a spring 1, and the two ends of each of the springs are respectively fixedly connected to the outer side wall of the fixed plate and the outer side wall of the limit block; the mounting frame is fixedly connected to the outer side wall of the upper valve sleeve; the T-block is inserted into the inner side of the mounting frame, slidably connected to the mounting frame, and two are symmetrically arranged; Spring 2, each of the T-blocks is provided with a spring 2, and the two ends of each of the springs are respectively fixedly connected to the outer side wall of the T-block and the outer side wall of the mounting frame.

[0008] Preferably: a protective coating is provided on the top surface of the installation frame.

[0009] Preferably, a protective shell is fixedly connected to the outer side wall of the installation frame.

[0010] Preferably, the width of the mounting plate is equal to the inner width of the mounting frame.

[0011] Preferably: a linkage assembly is arranged on the mounting plate, and the linkage assembly comprises: a pull rod, which is inserted into the mounting plate and is slidably connected to the mounting plate; a connecting rod, each of the limit blocks is hinged with a connecting rod, and both ends of the two connecting rods are hinged to one end of the pull rod.

[0012] Preferably: the bottom end of the pull rod is fixedly connected with a plate body.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a high pressure resistant valve sleeve, which has the following beneficial effects:

[0015] The utility model has the advantage of pre-fixing the valve sleeve, which is convenient for installing and screwing the fastening bolts into the mounting holes. The operator picks up the lower valve sleeve to drive the limit block to be squeezed with the mounting frame. The limit block is squeezed and moves toward the inside of the mounting plate. Then, when the lower valve sleeve is tightly attached to the upper valve sleeve, the spring 1 automatically pops out the limit block. Then, the operator slides the lower valve sleeve back and forth to squeeze the T-block on one side when the mounting plate moves. When the mounting frame completely passes the T-block on one side, the spring 2 rebounds the T-block to limit the mounting plate. At the same time, the mounting plate is just tightly attached to the T-block on the other side. The mounting plate is limited by the two T-blocks, thereby pre-fixing the lower valve sleeve. At this time, the mounting holes on the upper valve sleeve and the lower valve sleeve are aligned, which solves the problem that it is inconvenient to align the mounting holes between the valve sleeves due to the lack of a pre-fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model when the upper and lower valve sleeves are not connected;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model without a protective shell;

[0020] Figure 5 It is a schematic diagram of the structure of the internal device of the mounting plate in the utility model.

[0021] In the figure:

[0022] 1. Main assembly; 11. Upper valve sleeve; 12. Lower valve sleeve; 13. Mounting hole;

[0023] 2. Pre-fixed assembly; 21. Mounting plate; 22. Fixing plate; 23. Limit block; 24. Spring 1; 25. Mounting frame; 26. T-block; 27. Spring 2;

[0024] 3. linkage assembly; 31. pull rod; 32. connecting rod;

[0025] 4. Protective shell; 5. Protective coating; 6. Board body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-5 A high-pressure resistant valve sleeve, comprising a main body component 1; the main body component 1 comprises an upper valve sleeve 11, a lower valve sleeve 12 is arranged at the bottom thereof; a mounting hole 13, both the upper valve sleeve 11 and the lower valve sleeve 12 are provided with mounting holes 13, and a plurality of mounting holes 13 are provided on each of the upper valve sleeve 11; a pre-fixing component 2 is symmetrically arranged on the upper valve sleeve 11, and each group of the pre-fixing components 2 comprises: a mounting plate 21, fixedly connected to the outer side wall of the lower valve sleeve 12; a fixing plate 22, fixedly connected to the inner side wall of the mounting plate 21; a limiting block 23, inserted into the interior of the mounting plate 21, slidably connected to the mounting plate 21, and symmetrically arranged with two; a spring 24, each of the limiting blocks 23 is provided with a spring 24, and Both ends of each of the springs 1 24 are respectively fixedly connected to the outer wall of the fixing plate 22 and the outer wall of the limit block 23; the mounting frame 25 is fixedly connected to the outer wall of the upper valve sleeve 11; the T-block 26 is inserted into the inner side of the mounting frame 25, is slidably connected to the mounting frame 25, and is symmetrically arranged with two; a spring 27, each of the T-blocks 26 is provided with a spring 27, and both ends of each of the springs 27 are respectively fixedly connected to the outer wall of the T-block 26 and the outer wall of the mounting frame 25; the top surface of the mounting frame 25 is provided with a protective coating 5; the outer wall of the mounting frame 25 is fixedly connected with a protective shell 4; the width of the mounting plate 21 is equal to the inner width of the mounting frame 25.

[0029] When in use, the operator picks up the lower valve sleeve 12, so that the lower valve sleeve 12 drives the mounting plate 21 on the fixed block to be inserted into the inner side of the mounting frame 25. When the mounting plate 21 moves, it drives the limit block 23 to be squeezed with the mounting frame 25. The limit block 23 is squeezed and moves toward the inside of the mounting plate 21, so that the limit block 23 squeezes the spring 1 24 on the fixed plate 22. Then, when the lower valve sleeve 12 is tightly attached to the upper valve sleeve 11, the limit block 23 just completely moves out of the inner side of the mounting frame 25. At this time, the spring 1 24 automatically pops out the limit block 23. Then the operator slides the lower valve sleeve 12 back and forth. 2, the mounting plate 21 drives the limit block 23 to slide on the top surface of the mounting frame 25, and the mounting plate 21 squeezes the T-block 26 on one side when it moves, and then the mounting plate 21 continues to move and squeeze the inclined surface of the T-block 26 on one side, so that the T-block 26 moves away from the mounting frame 25, and at the same time, the mounting frame 25 stretches the second spring 27. When the mounting frame 25 completely passes the T-block 26 on one side, the second spring 27 rebounds the T-block 26 to limit the mounting plate 21, and at the same time, the mounting plate 21 is just in close contact with the T-block 26 on the other side, and the mounting plate 21 is pressed against the mounting plate 21 through the two T-blocks 26. 21 is used to limit the position, thereby pre-fixing the lower valve sleeve 12. At this time, the upper valve sleeve 11 is aligned with the mounting holes 13 on the lower valve sleeve 12, which is convenient for users to fix with bolts, thereby improving the practicality of the device; the top surface of the mounting frame 25 is provided with a protective coating 5, and the protective coating 5 makes the surface of the mounting frame 25 smoother, which can reduce the friction between the limit block 23 and the mounting frame 25, and at the same time reduce the wear of the fitting between the limit block 23 and the mounting frame 25 when the device is used for a long time, thereby improving the safety of the device; the outer wall of the mounting frame 25 is fixed A protective shell 4 is fixedly connected, and the protective shell 4 can completely cover the spring 27 inside to prevent foreign debris and other sundries from getting stuck on the spring 27 when the device is exposed for use, affecting the elastic force of the spring 27, causing the device to be unable to be used normally and requiring frequent cleaning, thereby improving the stability of the device; the width of the mounting plate 21 is equal to the inner width of the mounting frame 25, so that after the device is installed, the gap between the mounting plate 21 and the mounting frame 25 will not cause the lower valve sleeve 12 to shake, which is more conducive to the operator to install the bolts, thereby improving the stability of the device.

[0030] Embodiment 2

[0031] See also Figure 1-5 , based on the first embodiment, a linkage function is added;

[0032] A linkage assembly 3 is provided on the mounting plate 21, and the linkage assembly 3 includes: a pull rod 31, which is inserted into the mounting plate 21 and is slidably connected to the mounting plate 21; a connecting rod 32, each of the limit blocks 23 is hinged with a connecting rod 32, and both ends of the two connecting rods 32 are hinged to one end of the pull rod 31; the bottom end of the pull rod 31 is fixedly connected to a plate body 6.

[0033] When it is necessary to disassemble the upper valve sleeve 11 and the lower valve sleeve 12, the operator pulls the pull rod 31 downward, and the pull rod 31 moves through the connecting rod 32 to drive the two limit blocks 23 to enter the interior of the mounting plate 21. The operator can then directly remove the lower valve sleeve 12 without the operator squeezing the limit blocks 23 on both sides at the same time, which makes it convenient for the operator to disassemble and improves the practicability of the device. The bottom end of the pull rod 31 is fixedly connected to the plate body 6, and the operator can drive the pull rod 31 to move downward by pulling the plate body 6 by hand to prevent the surface of the pull rod 31 from being relatively smooth. The operator can easily detach his hand by directly pulling it, thereby improving the convenience of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high pressure resistant valve sleeve, comprising a main body component (1); the main body component (1) comprises An upper valve sleeve (11), the bottom of which is provided with a lower valve sleeve (12); A mounting hole (13), wherein the upper valve sleeve (11) and the lower valve sleeve (12) are both provided with a plurality of mounting holes (13); Features: The upper valve sleeve (11) is symmetrically provided with pre-fixing components (2), and each group of the pre-fixing components (2) comprises: A mounting plate (21) fixedly connected to the outer side wall of the lower valve sleeve (12); A fixing plate (22) fixedly connected to the inner wall of the mounting plate (21); A limit block (23) is inserted into the interior of the mounting plate (21), is slidably connected to the mounting plate (21), and is symmetrically arranged with two limit blocks; Spring 1 (24), each of the limit blocks (23) is provided with a spring 1 (24), and both ends of each of the spring 1 (24) are respectively fixedly connected to the outer wall of the fixing plate (22) and the outer wall of the limit block (23); A mounting frame (25) fixedly connected to the outer side wall of the upper valve sleeve (11); A T-shaped block (26) is inserted into the inner side of the installation frame (25), is slidably connected to the installation frame (25), and is symmetrically arranged with two T-shaped blocks; Spring 2 (27), each of the T-shaped blocks (26) is provided with a spring 2 (27), and both ends of each of the springs 2 (27) are respectively fixedly connected to the outer wall of the T-shaped block (26) and the outer wall of the installation frame (25).

2. A high pressure resistant valve sleeve according to claim 1, characterized in that: The top surface of the installation frame (25) is provided with a protective coating (5).

3. A high pressure resistant valve sleeve according to claim 2, characterized in that: The outer side wall of the installation frame (25) is fixedly connected with a protective shell (4).

4. A high pressure resistant valve sleeve according to claim 2, characterized in that: The width of the mounting plate (21) is equal to the inner width of the mounting frame (25).

5. The high pressure resistant valve sleeve according to claim 1, characterized in that: A linkage assembly (3) is arranged on the mounting plate (21), and the linkage assembly (3) comprises: A pull rod (31) is inserted into the interior of the mounting plate (21) and is slidably connected to the mounting plate (21); A connecting rod (32), each of the limit blocks (23) is hingedly connected with a connecting rod (32), and both ends of the two connecting rods (32) are hingedly connected to one end of the pull rod (31).

6. The high pressure resistant valve sleeve according to claim 5, characterized in that: The bottom end of the pull rod (31) is fixedly connected to a plate body (6).

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