Extractor for plug-in unit of cartridge valve

Abstract

The utility model relates to the technical field of mechanical tools, in particular to a cartridge valve plug-in extractor. The cartridge valve plug-in extractor comprises a sleeve, three lead screws, a connecting block, a connecting pipe, a stop lever, a reset spring, a conical push rod, a push assembly and a clamping assembly, the sleeve serves as a main shell of the whole extractor, and the three lead screws are rotationally arranged in the sleeve at intervals in the circumferential direction. And the right ends of the three lead screws are jointly in threaded connection with a connecting block. According to the device, stable connection is achieved through clamping connection of the stop lever and the valve sleeve groove hole, the motor serves as a power source to drive the connecting pipe and the stop lever to move cooperatively, the valve sleeve can be automatically and efficiently pushed out of the valve body through accurate control of the motor, dismounting operation is completed, compared with a traditional manual dismounting mode, the valve sleeve taking-out time is remarkably shortened, and the dismounting efficiency is improved. And the working efficiency is greatly improved, the time cost in the maintenance process is effectively reduced, and the overall maintenance efficiency of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical tool technical field especially relates to a plug-in valve plug extractor. BACKGROUND

[0002] In the hydraulic system, the plug-in valve is a common control element, and the core component of the plug-in valve plug (valve sleeve) is usually embedded in the valve body. Due to long-term use or damage, the plug-in valve plug may need to be replaced or repaired.

[0003] However, the traditional disassembly method often relies on hand tools or simple mechanical structures. Maintenance personnel usually use simple tools such as crowbars, wrenches, etc. to try to take out the valve sleeve from the valve body. Such a way has many drawbacks. Since the valve sleeve and the valve body are tightly matched, a lot of manpower is needed during operation, and it is difficult to ensure uniform force, resulting in a very time-consuming and laborious disassembly process, which seriously affects work efficiency and increases maintenance costs. In addition, manual operation is difficult to control the force and position accurately, and it is easy to cause damage to the valve sleeve or valve body due to improper operation, which not only affects the normal maintenance progress of the equipment, but also may cause the overall performance of the equipment to decline. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings, the technical problem to be solved is to provide a plug-in valve plug extractor.

[0005] Technical scheme: A plug-in valve plug extractor comprises a sleeve, three lead screws, a connecting block, a connecting pipe, a stop rod, a return spring, a conical push rod, a push assembly and a clamping assembly. The sleeve serves as the main shell of the extractor. Three lead screws are arranged along the inner circumference of the sleeve. A connecting block is threadedly connected between the right ends of the three lead screws. A connecting pipe is connected to the middle of the connecting block. A stop rod is symmetrically connected to the left end of the connecting pipe. A return spring is connected between the stop rod and the connecting pipe. A conical push rod is slidably connected to the connecting pipe. The left end of the conical push rod is in close contact with the end face of the stop rod. A push assembly is arranged on the sleeve. A clamping assembly is arranged in the connecting pipe.

[0006] In one embodiment, the left wall of the sleeve is attached to an annular buffer pad by an adhesive.

[0007] In one embodiment, the upper and lower end faces of the stop rod are designed as circular arcs.

[0008] In one embodiment, the push assembly comprises a motor, a gear and a gear ring. The motor is installed on the upper side of the right side wall of the sleeve. The output shaft of the motor penetrates the inside of the sleeve and is connected to one of the lead screws. The right ends of the lead screws are connected to gears. The right side of the sleeve is rotatably connected to a gear ring. The gears are meshed with the gear ring.

[0009] In one embodiment, the clamping assembly comprises a connecting spring, a clamping rod and a spring sheet, the connecting spring is connected between the conical push rod and the inside of the connecting pipe, the upper and lower surfaces of the right end of the conical push rod are respectively provided with a plurality of clamping holes, the upper and lower walls of the connecting pipe are respectively provided with a clamping rod through the spring sheet at the positions aligned with the clamping holes, and the clamping rod is clamped with the clamping hole.

[0010] In one embodiment, the clamping assembly comprises a connecting spring, a clamping rod and a spring sheet, the connecting spring is connected between the conical push rod and the inside of the connecting pipe, the upper and lower surfaces of the right end of the conical push rod are respectively provided with a plurality of clamping holes, the upper and lower walls of the connecting pipe are respectively provided with a clamping rod through the spring sheet at the positions aligned with the clamping holes, and the clamping rod is clamped with the clamping hole.

[0011] The utility model has the advantages of the following: 1. The device uses the clamping of the stop rod and the valve sleeve slot hole to realize stable connection, uses the motor as a power source, drives the cooperative movement of the connecting pipe and the stop rod, and automatically and efficiently pushes out the valve sleeve from the valve body through the accurate control of the motor, completes the disassembly operation, significantly shortens the valve sleeve taking-out time compared with the traditional manual disassembly mode, greatly improves the work efficiency, effectively reduces the time cost in the maintenance process, and improves the overall maintenance efficiency of the equipment.

[0012] 2. When the valve sleeve taking-out operation is performed, the sleeve left end port of the extractor is tightly attached to the valve body, and the connecting pipe can accurately align the valve sleeve port, so that the extractor and the valve sleeve always maintain a stable connection state during the whole taking-out process, the taking-out failure risk caused by position deviation is effectively avoided, the possibility of damage to the valve sleeve and the valve body is maximally reduced, the integrity of the equipment is guaranteed, and normal use is ensured.

[0013] 3. The arc-shaped design of the upper and lower end surfaces of the stop rod facilitates the smooth clamping of the outer end surface into the slot hole in the valve sleeve, and the inner end surface can be tightly matched with the conical push rod, so that the stop rod is accurately and smoothly moved outward and clamped with the slot hole under the pushing of the conical push rod, and the success rate and efficiency of clamping are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a three-dimensional structure schematic view of the sleeve, the connecting pipe and the motor of the utility model.

[0016] Figure 3 It is a three-dimensional structure schematic view of the screw rod, the connecting block and the connecting pipe of the utility model.

[0017] Figure 4 It is a three-dimensional structure schematic view of the connecting block, the connecting pipe and the stop rod of the utility model.

[0018] Figure 5 It is a three-dimensional structure schematic view of the metal rod, the return spring and the conical push rod of the utility model.

[0019] Figure 6 It is a three-dimensional structure schematic view of the metal rod, the return spring and the conical push rod of the utility model.Figure 5 Enlarged view at A.

[0020] In the figure: 1, valve body, 2, valve sleeve, 201, slot hole, 3, sleeve, 4, screw rod, 5, connecting block, 6, connecting pipe, 7, stop rod, 8, metal rod, 9, reset spring, 10, conical push rod, 11, connecting spring, 111, motor, 12, gear, 13, gear ring, 14, clamping hole, 15, clamping rod, 16, spring piece. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the embodiments shown in the drawings.

[0022] Embodiment: a plug-in valve plug extractor, as shown in Figures 1-6 , including sleeve 3, screw rod 4, connecting block 5, connecting pipe 6, stop rod 7, metal rod 8, reset spring 9, conical push rod 10, push assembly and clamping assembly, sleeve 3 is the main shell of the whole extractor, plays the role of supporting and protecting internal components, three screw rods 4 are spaced apart along the inner circumference of sleeve 3 and are arranged in a rotating mode, three screw rods 4 are threadedly connected to a connecting block 5 at the right ends, the connecting block 5 can be driven to move along the axial direction by the rotation of screw rod 4, the connecting block 5 is connected with connecting pipe 6 in the middle, the connecting pipe 6 is symmetrically connected with stop rod 7 in a sliding mode at the left end, reset spring 9 is connected between stop rod 7 and the inside of connecting pipe 6, conical push rod 10 is slidably connected in the inside of connecting pipe 6, the conical part at the left end of conical push rod 10 is in close contact with the end face of two stop rods 7, the stop rod 7 can be moved radially by the axial movement of conical push rod 10, metal rod 8 is welded in the inside of stop rod 7 for enhancing the structural strength of stop rod 7 and improving its hardness, the upper and lower end faces of stop rod 7 are designed in a circular arc shape, the circular arc structure at the outer end face facilitates the smooth clamping of stop rod 7 into the slot hole 201 in valve sleeve 2, and the circular arc at the inner end face can be well matched with conical push rod 10, sleeve 3 is provided with a push assembly, connecting pipe 6 is provided with a clamping assembly, and the left wall of sleeve 3 is attached with an annular buffer pad by adhesive, which can not only play a buffering role when sleeve 3 is attached with valve body 1, but also ensure the tightness and stability between the two.

[0023] As shown in Figures 1-3 , the push assembly includes motor 111, gear 12 and gear ring 13, the upper side of the right side wall of sleeve 3 is provided with motor 111 by bolts, the output shaft of motor 111 penetrates the inside of sleeve 3 and is connected with one screw rod 4 at the upper side, gear 12 is welded at the right end of screw rod 4, gear ring 13 is rotatably connected in the right side of sleeve 3, gear 12 is engaged with gear ring 13, the synchronous rotation of three screw rods 4 is realized by the engagement transmission of gear 12 and gear ring 13 through the rotation of screw rod 4 driven by motor 111.

[0024] As shown in Figures 5-6As shown, the clamping assembly includes connecting spring 11, clamping rod 15 and spring sheet 16, connecting spring 11 is connected between the inside of connecting pipe 6 and conical push rod 10, for assisting the reset of conical push rod 10, a plurality of clamping holes 14 are respectively formed on the upper and lower surfaces of the right end of conical push rod 10, clamping rod 15 is connected to the positions of the upper and lower walls of connecting pipe 6 which are aligned with clamping holes 14 through spring sheet 16, clamping rod 15 is clamped with clamping hole 14, for axially limiting conical push rod 10.

[0025] When disassembling valve sleeve 2, the operator holds the extractor, tightly combines the left end of sleeve 3 with valve body 1, makes the left end of connecting pipe 6 stretch into the mouth of valve sleeve 2, then starts motor 111, the rotation of the output shaft of motor 111 drives the rotation of screw rod 4 connected with it, through the meshing transmission of gear 12 and tooth ring 13, the synchronous rotation of the other two screw rods 4, in turn drives the axial leftward movement of connecting block 5 and connecting pipe 6, and the synchronous movement of stopper 7 and conical push rod 10. When stopper 7 moves to the position aligned with slot hole 201 in valve sleeve 2, motor 111 is turned off, at this time, conical push rod 10 is manually pushed to move leftward, connecting spring 11 is compressed, clamping rod 15 is extruded outward by conical push rod 10, spring sheet 16 is elastically deformed, the conical structure at the left end of conical push rod 10 pushes the outward radial movement of the two stoppers 7, reset spring 9 is compressed, when stopper 7 is clamped with slot hole 201 in valve sleeve 2, the pushing of conical push rod 10 is stopped, at this time, clamping rod 15 is moved inward by the rebound force of spring sheet 16, and is clamped with the corresponding clamping hole 14, so as to fix conical push rod 10, then the reverse operation of motor 111 is controlled, the output shaft of motor 111 is reversed, screw rod 4 is reversed through gear 12 and tooth ring 13, connecting block 5 and connecting pipe 6 move rightward along the axial direction, stopper 7 and conical push rod 10 also move rightward, stopper 7 pulls valve sleeve 2 to move rightward, valve sleeve 2 is pushed out of valve body 1, after valve sleeve 2 is pushed out, motor 111 is turned off. Finally, conical push rod 10 is pulled rightward, connecting spring 11 is reset, when the left end of conical push rod 10 no longer abuts against stopper 7, stopper 7 moves inward under the action of reset spring 9, and is disengaged from the clamping of valve sleeve 2, the extraction operation of valve sleeve 2 is completed, and conical push rod 10 is fixed by clamping rod 15 after reset.

[0026] Although the present disclosure has been shown and described with respect to certain exemplary embodiments thereof, it should be understood by those skilled in the art that various changes in form and detail can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the disclosure should not be limited to the above-described embodiments, but should be defined by the appended claims and their equivalents.

Claims

1. A cartridge valve cartridge extractor, comprising: The utility model relates to a take-out device, including sleeve (3), screw rod (4), connecting block (5), connecting pipe (6), stop lever (7), reset spring (9), conical push rod (10), push assembly and detent assembly, sleeve (3) is as the main shell of whole take-out device, three screw rods (4) are spaced apart rotationally arranged along the inner circumference of sleeve (3), a connecting block (5) is threadedly connected between the right ends of three screw rods (4), a connecting pipe (6) is connected in the middle of connecting block (5), stop lever (7) is symmetrically and slidingly connected on the left end of connecting pipe (6), reset spring (9) is connected between stop lever (7) and the inside of connecting pipe (6), conical push rod (10) is slidingly connected in the inside of connecting pipe (6), the left end conical portion of conical push rod (10) is in close contact with the end face of two stop levers (7), push assembly is arranged on sleeve (3), and detent assembly is arranged in connecting pipe (6).

2. A cartridge valve cartridge extractor as in claim 1, wherein, The left wall of sleeve (3) is attached with annular buffer pad through adhesive.

3. A cartridge valve insert extractor as defined in claim 2, wherein, The upper and lower end faces of stop lever (7) are designed as arc shape.

4. A cartridge valve insert extractor as defined in claim 3, wherein, The push assembly comprises motor (111), gear (12) and gear ring (13), the upper side of the right side wall of sleeve (3) is provided with motor (111), the output shaft of motor (111) penetrates the inside of sleeve (3) and is connected with one screw rod (4) on the upper side, the right end of screw rod (4) is connected with gear (12), gear ring (13) is rotationally connected in the right side of sleeve (3), and gear (12) is engaged with gear ring (13).

5. A cartridge valve insert extractor as defined in claim 4, wherein, The detent assembly comprises connecting spring (11), clamping rod (15) and spring sheet (16), connecting spring (11) is connected between conical push rod (10) and the inside of connecting pipe (6), a plurality of clamping holes (14) are formed on the upper and lower faces of the right end of conical push rod (10), clamping rod (15) is connected with spring sheet (16) at the positions of the upper and lower walls of connecting pipe (6) and clamping hole (14) are aligned, and clamping rod (15) is clamped with clamping hole (14).

6. A cartridge valve insert extractor as defined in claim 5, wherein, The utility model further comprises metal rod (8), and metal rod (8) is connected in the inside of stop lever (7).

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