Tool for pulling out valve seat of electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses an electromagnetic valve seat pulling-out tool which is used for separating a valve sleeve and a valve seat of an electromagnetic valve and comprises a fixing seat, a pulling-out rod and a supporting pin. The electromagnetic valve seat pulling-out tool is detachably connected with an electromagnetic valve, and a mounting hole is formed in the hollow fixing seat and used for fixedly sleeving a valve sleeve. A central slender hole is formed in the hollow pull-out rod, and the acting end of the pull-out rod can be deformed to be plugged into the central hole of the valve seat; the supporting pin can be arranged in the center long and thin hole, the thick end is embedded in the acting end so that the acting end can be in interference fit with the center hole, and the pull-out rod and the valve seat can be fixedly assembled. The pull-out rod is pulled upwards, the valve seat is driven to be pulled out together, the electromagnetic valve seat pull-out tool is simple in structure and more convenient to operate, quick and lossless disassembly of the electromagnetic valve is achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a tool for pulling out a valve seat of a solenoid valve. Background Technique

[0002] A solenoid valve is an industrial device controlled by electricity magnetism. It is a basic automation component for controlling fluids and belongs to an actuator, not limited to hydraulic and pneumatic applications. It is used in industrial control systems to adjust the direction, flow rate, speed and other parameters of the medium. The solenoid valve can cooperate with different circuits to achieve the expected control, and the control accuracy and flexibility can be guaranteed.

[0003] During the manufacturing and development process of solenoid valves, internal parts are often replaced. However, the valve sleeves and valve seats of solenoid valves are generally press-fitted with interference. During disassembly and assembly, due to excessive frictional force, workers need to pull out and disassemble with great force to replace the internal parts, and the operation is very inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tool for pulling out a valve seat of a solenoid valve, which has a simple structure and convenient operation, realizes rapid and non-destructive disassembly of the solenoid valve, and improves work efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tool for pulling out a valve seat of a solenoid valve, used for separating the valve sleeve and the valve seat of the solenoid valve, includes:

[0007] A fixed seat, which is provided with a hollow mounting hole for fixedly sleeving the solenoid valve, and the fixed seat is detachably connected to the valve sleeve;

[0008] A pulling rod, which is provided with a central slender hole inside, and the acting end of the pulling rod can be deformed to be inserted into the central hole of the valve seat;

[0009] A support pin, which is divided into a thick end and a thin end connected to each other. The support pin can be placed in the central slender hole, and the thick end is embedded in the acting end to make the acting end in interference fit with the central hole.

[0010] As an optional technical solution of the tool for pulling out a valve seat of a solenoid valve, a pulling flange is convexly provided on the outer periphery of the acting end, and the pulling flange can abut against the pulling step on the outer edge of the central hole.

[0011] As an optional technical solution of the tool for pulling out a valve seat of a solenoid valve, a pin retaining table is provided on the inner periphery of the acting end, and the thick end abuts against the pin retaining table.

[0012] As an alternative technical solution of the solenoid valve seat pulling tooling, a long groove is provided on the pulling rod, and the long groove penetrates the central slender hole along a direction perpendicular to the axial direction of the pulling rod, and the long groove divides the pulling rod into two petals.

[0013] As an alternative technical solution of the solenoid valve seat pulling tooling, a tightening thread is provided on the inner wall of the mounting hole, and the tightening thread is screwed with the external thread of the magnetic core tube connected to the valve sleeve. A limiting stop platform is convexly provided along the inner edge of the mounting hole on the fixing seat, and the limiting stop platform is clamped with the magnetic core tube.

[0014] As an alternative technical solution of the solenoid valve seat pulling tooling, a vise stop platform is provided on the outer periphery of the fixing seat, and fixing legs are provided at the bottom end of the fixing seat, and the vise stop platform is perpendicularly arranged with respect to the fixing legs.

[0015] As an alternative technical solution of the solenoid valve seat pulling tooling, a limiting slot is provided on the fixing seat, and the solenoid valve seat pulling tooling further includes a limiting piece, and the limiting piece can be clamped with the outer circular groove of the valve sleeve through the limiting slot.

[0016] As an alternative technical solution of the solenoid valve seat pulling tooling, an arc-shaped notch is provided at one end of the limiting piece close to the valve sleeve, and the arc-shaped notch is arranged in a fitting manner with the outer circular groove.

[0017] As an alternative technical solution of the solenoid valve seat pulling tooling, an auxiliary hole is provided at the operating end of the pulling rod, and the extending direction of the auxiliary hole is perpendicular to the extending direction of the central slender hole. The solenoid valve seat pulling tooling further includes a pull rod, and the pull rod can pass through the auxiliary hole.

[0018] As an alternative technical solution of the solenoid valve seat pulling tooling, the pull rod is in clearance fit with the auxiliary hole.

[0019] Advantages of the present utility model:

[0020] The present utility model provides a solenoid valve seat pulling tooling, including a fixing seat, a pulling rod and a support pin, which is used for separating the valve sleeve and the valve seat of the solenoid valve. The solenoid valve seat pulling tooling is detachably connected to the solenoid valve. The fixing seat is hollow and provided with a mounting hole for fixedly sleeving the valve sleeve; the pulling rod is hollow and provided with a central slender hole, and the acting end of the pulling rod can be deformed to be inserted into the central hole of the valve seat; the support pin can be placed in the central slender hole, and the thick end is embedded in the acting end, so that the acting end is in interference fit with the central hole, and the pulling rod and the valve seat are fixedly assembled. By pulling the pulling rod upwards, the valve seat is driven to be pulled out together. The solenoid valve seat pulling tooling has a simple structure, is more convenient to operate, realizes rapid and non-destructive disassembly of the solenoid valve, and improves work efficiency. Description of the drawings

[0021] Figure 1It is a schematic structural view of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0022] Figure 2 It is a sectional view of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0023] Figure 3 It is a schematic structural view of the pulling rod of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0024] Figure 4 It is a partial sectional view of the pulling rod of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0025] Figure 5 It is a schematic structural view of the support pin of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0026] Figure 6 It is a schematic structural view of the limit piece of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0027] Figure 7 It is a schematic structural view of the fixed seat of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0028] Figure 8 It is a sectional view of the fixed seat of the solenoid valve seat pulling tool provided by the specific embodiment of the present utility model;

[0029] Figure 9 It is a schematic structural view of the solenoid valve provided by the specific embodiment of the present utility model;

[0030] Figure 10 It is a schematic structural view of the valve seat of the solenoid valve provided by the specific embodiment of the present utility model;

[0031] Figure 11 It is a sectional view of the valve seat of the solenoid valve provided by the specific embodiment of the present utility model.

[0032] In the figure:

[0033] 100, fixed seat; 110, mounting hole; 111, limit retaining platform; 120, fixed leg; 130, vise retaining platform; 140, limit slot;

[0034] 200, pulling rod; 201, acting end; 202, operating end; 210, central slender hole; 220, pulling flange; 230, pin retaining platform; 240, long slot; 250, auxiliary hole;

[0035] 300, support pin; 310, thick end; 320, thin end;

[0036] 400, Limit piece; 410, Arc-shaped stop; 500, Pull rod;

[0037] 900, Solenoid valve; 910, Valve seat; 911, Central hole; 912, Pull-out step; 920, Valve sleeve; 921, Outer circular groove; 930, Magnetic core tube. Specific embodiments

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0039] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0041] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right", and "left" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] Such as Figures 1 to 11As shown in the figure, the utility model discloses a tool for pulling out an electromagnetic valve seat, which includes a fixed seat 100, a pulling out rod 200 and a support pin 300, and is used to separate the valve sleeve 920 and the valve seat 910 of the electromagnetic valve 900. Specifically, the tool for pulling out the electromagnetic valve seat is detachably connected to the electromagnetic valve 900. The fixed seat 100 is hollow and provided with an installation hole 110 for fixedly sleeving the valve sleeve 920; the pulling out rod 200 is hollow and provided with a central slender hole 210. The acting end 201 of the pulling out rod 200 can be deformed to be inserted into the central hole 911 of the valve seat 910; the support pin 300 is divided into a thick end 310 and a thin end 320 which are connected to each other, and can be integrally placed in the central slender hole 210. The central slender hole 210 is in clearance fit with the thin end 320 of the support pin 300, which is convenient for loading the support pin 300; when assembled with the pulling out rod 200, the thick end 310 enters the central slender hole 210 of the pulling out rod 200 and is embedded in the acting end 201, so that the acting end 201 is in interference fit with the central hole 911 of the valve seat 910, fixedly assembling the pulling out rod 200 and the valve seat 910. The acting end 201 will not be forced to shrink and narrow during the pulling out operation, so as to prevent it from coming out of the valve seat 910. Pulling up the pulling out rod 200, the valve seat 910 will be driven out together. The tool for pulling out the electromagnetic valve seat has a simple structure and more convenient operation, realizes the rapid and non-destructive disassembly of the electromagnetic valve 900, and improves the work efficiency. Exemplarily, the material of the pulling out rod 200 is selected as spring steel, and the spring steel has high hardness and elasticity, which not only ensures the structural stability of the pulling out rod 200, but also ensures that the pulling out rod 200 has sufficient recovery ability after deformation.

[0043] Specifically, the pulling out rod 200 is provided with a long groove 240, and the long groove 240 penetrates the central slender hole 210 along the axial direction perpendicular to the pulling out rod 200, providing a deformation space and freedom for the contraction of the acting end 201. Its length is only slightly shorter than the total length of the pulling out rod 200 or the central slender hole 210, so that only a relatively small force is required to narrow the acting end 201. The long groove 240 divides most of the length of the pulling out rod 200 into two parts, and the thick end 310 can relatively easily spread open the long groove 240 of the pulling out rod 200.

[0044] Specifically as Figure 2 、 Figure 4 、 Figure 10 and Figure 11 shown, the outer periphery of the acting end 201 is convexly provided with a pulling out flange 220. After the pulling out flange 220 is forced to narrow, it can pass through the central hole 911 of the valve seat 910 and abut against the pulling out step 912 on the outer edge of the central hole 911, preparing for pulling out the valve seat 910 subsequently.

[0045] Optionally, the acting end 201 is provided with a pin retaining platform 230 on the inner periphery of the central slender hole 210, and the thick end 310 abuts against the pin retaining platform 230, which is used to block the support pin 300, providing a limit for the support pin 300 to prevent it from falling out of the central hole 911 of the pulling out rod 200.

[0046] In this embodiment, the inner wall of the mounting hole 110 is provided with a tightening thread, and the tightening thread is screwed with the external thread of the magnetic core tube 930 connected to the valve sleeve 920 to fix the magnetic core tube 930, that is, to fix the valve sleeve 920 of the solenoid valve 900 on the fixing seat 100; a limiting stop 111 is convexly provided at the top of the tightening thread along the inner edge of the mounting hole 110 of the fixing seat 100, and the limiting stop 111 is clamped with the magnetic core tube 930 to limit the magnetic core tube 930 after tightening, preventing the solenoid valve 900 from slipping out and detaching from the fixing seat 100, and realizing fixation and thread centering through the fixing seat 100.

[0047] As Figure 7 shown, two fixing legs 120 are provided at the bottom end of the fixing seat 100 on both sides, which are used to clamp and fix the fixing seat 100 on the vise for preparation of subsequent pulling-out operation; a vise stop 130 is provided on the outer periphery of the fixing seat 100, and the vise stop 130 is perpendicular to the fixing legs 120 and cooperates with the fixing legs 120 to facilitate the fixing seat 100 to be placed on the vise jaw and then fixed on the vise.

[0048] Continuing to refer to Figures 1 to 11 , specifically, the fixing seat 100 is provided with a limiting slot 140, and the solenoid valve seat pulling-out tooling further includes a limiting piece 400, and the limiting piece 400 can be clamped with the outer circular groove 921 of the valve sleeve 920 through the limiting slot 140. In this embodiment, the limiting slot 140 is a flat rectangular slot that penetrates the entire fixing seat 100, and the limiting piece 400 has a clearance fit with it and enters the outer circular groove 921 of the valve sleeve 920 after passing through the flat rectangular slot, so as to play a role in fixing the valve sleeve 920, and limit the valve sleeve 920 through the limiting piece 400 so that it does not interfere with the pulling-out work.

[0049] Exemplarily, the limiting piece 400 is integrally in a thin sheet shape, and an arc-shaped notch 410 is provided at one end close to the valve sleeve 920. The arc-shaped notch 410 is arranged in a fitting manner with the outer circular groove 921, which is used to further stably assemble into the outer circular groove 921 of the valve sleeve 920, so as to better play a role in fixing the valve sleeve 920 when pulling out the valve seat 910. In this embodiment, two limiting pieces 400 are provided, and the limiting slots 140 are also correspondingly opened on both sides of the fixing seat 100 to improve the fixing reliability of the valve sleeve 920.

[0050] Furthermore, an auxiliary hole 250 is provided at the operating end 202 of the pulling rod 200, and the extending direction of the auxiliary hole 250 is perpendicular to the extending direction of the central elongated hole 210. The solenoid valve seat pulling-out tooling further includes a pull rod 500, and the pull rod 500 can pass through the auxiliary hole 250 to facilitate the staff to perform the pulling-out operation by hand. Specifically, the pull rod 500 has a clearance fit with the auxiliary hole 250, which is more convenient for loading or replacing the pull rod 500.

[0051] The operation process of the solenoid valve seat extraction tool is as follows: first, the magnetic core tube 930 of the solenoid valve 900 is screwed into the tightening thread of the fixing seat 100 through the external thread to the limit stop 111; then the fixing seat 100 together with the solenoid valve 900 is clamped on the vise for fixing; at the same time, the limiting piece 400 is inserted into the outer circular groove 921 of the valve sleeve 920 through the limiting slots 140 on both sides of the fixing seat 100 for limiting; at this time, the action end 201 of the extraction rod 200 can be pinched by hand to make the extraction flange 220 narrower under force. Then, insert it into and pass through the center hole 911 of the valve seat 910, and fit it with the pull-out step 912 of the valve seat 910 and then release it; then, insert the support pin 300 into the central slender hole 210 of the pull-out rod 200, and insert it with the thick end 310 first in the direction of the working end 201, so that the thick end 310 fits with the pin stop 230 of the pull-out rod 200 to be assembled in place, thereby completing the expansion of the working end 201; finally, pass the pull rod 500 through the auxiliary hole 250, pull out the valve seat 910 upwards by hand, and then the final pull-out operation can be performed.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A solenoid valve seat extraction tool, used to separate a valve sleeve (920) and a valve seat (910) of a solenoid valve (900), characterized in that: include: A fixing seat (100), wherein the fixing seat (100) is hollow and has a mounting hole (110) for fixing and sleeve-mounting the solenoid valve (900), and the fixing seat (100) is detachably connected to the valve sleeve (920); A pull-out rod (200), wherein the pull-out rod (200) is hollow and has a central elongated hole (210), and an active end (201) of the pull-out rod (200) can be deformed to be inserted into the central hole (911) of the valve seat (910); A support pin (300), the support pin (300) is divided into a thick end (310) and a thin end (320) which are connected to each other, the support pin (300) can be placed in the central elongated hole (210), and the thick end (310) is embedded in the active end (201) so that the active end (201) and the central hole (911) are interference fit.

2. The solenoid valve seat extraction tool according to claim 1, characterized in that: The outer periphery of the action end (201) is provided with a pull-out flange (220) which can abut against a pull-out step (912) on the outer edge of the center hole (911).

3. The solenoid valve seat extraction tool according to claim 1, characterized in that: A pin stop platform (230) is provided on the inner periphery of the action end (201), and the thick end (310) abuts against the pin stop platform (230).

4. The solenoid valve seat extraction tool according to claim 1, characterized in that: The extraction rod (200) is provided with a long groove (240), the long groove (240) passes through the central elongated hole (210) in a direction perpendicular to the axial direction of the extraction rod (200), and the long groove (240) divides the extraction rod (200) into two parts.

5. The solenoid valve seat extraction tool according to claim 1, characterized in that: The inner wall of the mounting hole (110) is provided with a tightening thread, and the tightening thread is threadedly connected to the outer thread of the magnetic core tube (930) connected to the valve sleeve (920). The fixing seat (100) is provided with a limit stop platform (111) protruding along the inner edge of the mounting hole (110), and the limit stop platform (111) is clamped with the magnetic core tube (930).

6. The solenoid valve seat extraction tool according to claim 1, characterized in that: A vise stopper (130) is arranged on the outer periphery of the fixing seat (100), the bottom end of the fixing seat (100) is arranged on the fixing leg (120), and the vise stopper (130) is arranged vertically to the fixing leg (120).

7. The solenoid valve seat extraction tool according to claim 1, characterized in that: The fixing seat (100) is provided with a limiting slot (140), and the solenoid valve seat extraction tool further comprises a limiting plate (400), and the limiting plate (400) can be clamped with the outer circular groove (921) of the valve sleeve (920) through the limiting slot (140).

8. The solenoid valve seat extraction tool according to claim 7, characterized in that: An arc-shaped stopper (410) is provided at one end of the limiting plate (400) close to the valve sleeve (920), and the arc-shaped stopper (410) is arranged to fit the outer circular groove (921).

9. The solenoid valve seat extraction tool according to any one of claims 1 to 8, characterized in that: The operating end (202) of the extraction rod (200) is provided with an auxiliary hole (250), and the extension direction of the auxiliary hole (250) is perpendicular to the extension direction of the central elongated hole (210). The solenoid valve seat extraction tool also includes a pull rod (500), and the pull rod (500) can pass through the auxiliary hole (250).

10. The solenoid valve seat extraction tool according to claim 9, characterized in that: The pull rod (500) is clearance-matched with the auxiliary hole (250).

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