Manual emergency switching device of electromagnetic directional valve
By designing a compact manual emergency switch device, the problem of difficult operation of electromagnetic directional valves in space-constrained situations is solved. This compact operating device provides efficient and easily adjustable operation, overcoming the operational difficulties in existing technologies and enabling convenient operation of electromagnetic directional valves in space-constrained environments.
Patent Information
- Application Number
- CN202423162983.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing electromagnetic directional valves are difficult to operate in situations with limited installation space, and the manual emergency knob cannot be used effectively.
A compact manual emergency switch device was designed, including a manual emergency end cap, an emergency push rod, and a manual adjustment roller. The operation mode is provided by the manual adjustment roller and the internal hexagonal groove. Combined with the positioning sealing ring and locking screw, the electromagnetic reversing valve can be operated conveniently.
It enables convenient operation of the solenoid directional valve in space-constrained environments, provides diverse operating methods, avoids bending and dislodgement of the emergency push rod, and ensures the normal operation of the solenoid directional valve.
Smart Images
Figure CN223524577U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hydraulic system solenoid valve, especially to the improvement of solenoid reversing cartridge valve structure. BACKGROUND
[0002] In the hydraulic system, solenoid reversing valve is a kind of commonly used plug-in. Many practical application occasions need solenoid reversing valve to have manual emergency function. The solenoid reversing cartridge valve of prior art, when leaving factory, manufacturer will design manual emergency knob. That is, a rotating part that is twisted by hand is arranged at the top of valve body, and the outer diameter and axial height are relatively large.
[0003] In some occasions with small installation space, it is often difficult to operate due to insufficient process space, so that the hand cannot be inserted. SUMMARY
[0004] The utility model provides a manual emergency switch device of solenoid reversing valve for the above problems, which is convenient to adjust, compact in structure and has multiple operation modes.
[0005] The technical scheme of the utility model is as follows: a solenoid reversing valve includes a valve body, an emergency top rod, an armature and a reversing valve core, a center hole and a stepped groove are formed in the top of the valve body, the emergency top rod penetrates the center hole and extends into the stepped groove 6,
[0006] The manual emergency switch device includes a manual emergency end cover, an emergency push rod and a manual adjustment roller,
[0007] The manual emergency end cover has an inner cavity for accommodating the valve body and a threaded hole at the top, the manual emergency end cover is detachably connected with the valve body, the height of the inner cavity of the manual emergency end cover is greater than the height of the protruding section of the valve body, and a working section is left at the top of the inner cavity;
[0008] The emergency push rod is provided with a top-in section, a working guide section, a first connecting section and a second connecting section from bottom to top, the working guide section can move axially freely in the working section at the top of the inner cavity, the lower end of the top-in section extends into the stepped groove and abuts against the top end face of the emergency top rod, the first connecting section is connected with the threaded hole of the manual emergency end cover, and the second connecting section extends out of the manual emergency end cover and is connected with the manual adjustment roller.
[0009] Further, at least one positioning sealing ring is arranged on the outer circle of the working section.
[0010] Further, a notch is formed in the side surface of the manual adjustment roller and connected with the second connecting section, and a locking screw is arranged in the notch.
[0011] Further, an internal hexagonal groove is arranged at the top end of the second connecting section.
[0012] Further, the axial length of the jacking section is less than the axial depth of the stepped groove.
[0013] The utility model has the advantages that: first, the device has small size and compact structure, and is convenient to install in a small space, and is more convenient for operators to operate; second, the manual adjusting roller and the internal hexagonal groove at the top end in the structure provide two operation modes for the structure, and are convenient for adjustment operation. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 is a structure schematic view of an emergency switch in the utility model,
[0015] Fig. 2 is a structure schematic view of an emergency push rod in the utility model,
[0016] Fig. 3 is a three-dimensional schematic view of the emergency push rod in the utility model,
[0017] Fig. 4 is a three-dimensional sectional view of the emergency switch in the utility model,
[0018] Fig. 5 is a working assembly drawing of the utility model,
[0019] In the drawing: 1 is a manual emergency end cover, 2 is an emergency push rod, 21 is a front step, 22 is a rear step, 3 is a manual adjusting roller, 4 is a locking screw, 5 is a positioning sealing ring, 6 is a valve body, 601 is a groove, 602 is a center hole, 61 is an emergency jacking rod, 62 is an armature, and 63 is a reversing valve core. DETAILED DESCRIPTION
[0020] In order to make the application purposes, technical solutions and beneficial technical effects of the present application clearer, the present application will be further described in detail below in combination with embodiments. It should be understood that the embodiments described in the present specification are only for the purpose of explaining the present application, and are not intended to limit the present application.
[0021] For the sake of simplicity, only some numerical ranges are explicitly disclosed in the present application. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with other lower limits to form a range not explicitly recited, and likewise any upper limit can be combined with any other upper limit to form a range not explicitly recited. In addition, although not explicitly recited, every point or individual number between the range endpoints is included in the range. Thus, every point or individual number can serve as its own lower limit or upper limit to combine with any other point or individual number or to combine with other lower limits or upper limits to form a range not explicitly recited.
[0022] In the description of the present application, it is necessary to explain that, unless otherwise stated, "above", "below" are inclusive, and the meaning of "multiple" in "one or more" is two and more than two.
[0023] The above application content of the present application is not intended to describe each disclosed embodiment or each implementation in the present application. The following description illustrates the exemplary embodiments more specifically. In many places throughout the application, guidance is provided by a series of embodiments, which can be used in various combinations. In each instance, the enumeration is only representative of a group, and should not be interpreted as exhaustive.
[0024] The following will be described in conjunction with the accompanying Figs. 1-3 The embodiments of the present application are described in detail.
[0025] The electromagnetic reversing valve of the present application comprises a valve body 6, an emergency ejector rod 61, an armature 62 and a reversing valve core 63, a center hole 602 and a stepped groove 601 are formed at the top of the valve body 6, the emergency ejector rod 61 penetrates the center hole 602 and extends into the stepped groove 601;
[0026] The manual emergency switch device comprises a manual emergency end cover 1, an emergency push rod 2 and a manual adjusting roller 3,
[0027] The manual emergency end cover 1 has an inner cavity accommodating the valve body 6 and a threaded hole at the top, the manual emergency end cover 1 is detachably connected with the valve body 6, the height of the inner cavity of the manual emergency end cover 1 is greater than the height of the protruding section of the valve body 6, and a working section is left at the top of the inner cavity;
[0028] The emergency push rod 2 is provided with a top-in section, a working guide section, a first connecting section and a second connecting section from bottom to top, the working guide section is freely axially movable at the working section of the top of the inner cavity, the lower end of the top-in section extends into the stepped groove 601 and abuts against the top end surface of the emergency ejector rod 61, the first connecting section is connected with the threaded hole of the manual emergency end cover 1, the first connecting section is provided with external threads, and the second connecting section extends out of the manual emergency end cover 1 and is connected with the manual adjusting roller 3.
[0029] By rotating the manual adjusting roller 3 manually, the emergency push rod 2 is moved in the manual emergency end cover 1, the emergency push rod 2 pushes the emergency push rod 61 on the electromagnetic reversing plug-in valve, the emergency push rod 61 pushes the armature 62 in the electromagnetic reversing valve, the armature 62 pushes the reversing valve core 63, and the manual reversing of the electromagnetic reversing plug-in valve is realized. At the same time, during the forward pushing of the emergency push rod 2, due to the existence of the front step 21, when the front step 21 moves to the end face of the electromagnetic reversing plug-in valve, the emergency push rod 2 cannot continue to push the emergency push rod 61 on the electromagnetic reversing plug-in valve, so that the normal reversing of the electromagnetic reversing plug-in valve is ensured, and the emergency push rod 2 is prevented from excessively pushing the emergency push rod 61 on the electromagnetic reversing plug-in valve, so that the emergency push rod 61 is prevented from being bent and the plug-in valve is prevented from being invalid. During the backward movement of the emergency push rod 2, due to the existence of the rear step 22, when the rear step 22 moves to the inner end face of the manual emergency end cover 1, the rear step 22 cannot continue to move forward, so that the emergency push rod 2 is prevented from being pulled out of the manual emergency end cover 1.
[0030] Further, at least one positioning sealing ring 5 is arranged on the outer circle of the working section. When the emergency push rod 2 is in the working position, the positioning sealing ring 5 is prevented from loosening in the working position by the friction between the positioning sealing ring 5 and the inner wall of the manual emergency end cover 1.
[0031] Further, a groove is arranged on the side surface of the adjusting roller 3 to the connecting section II, and a locking screw 4 is arranged in the groove. The locking screw 4 is used for fixing, so as to ensure the integrity of the manual adjusting roller 3 and the emergency push rod 2.
[0032] Further, a hexagonal socket is arranged at the top end of the connecting section II. The hexagonal socket can be operated by using a hexagonal wrench.
[0033] Further, the axial length of the pushing-in section is less than the axial depth of the step groove 601.
[0034] It should be noted that the above specific embodiments are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art should understand that, on the basis of the technical content disclosed in the present application, various modifications, equivalent replacements, changes and the like can be made to the present application. However, as long as these changes do not deviate from the spirit of the present application, they should be within the protection scope of the present application. In addition, some terms used in the present application and the claims are not limited, but are only used for convenient description.
Claims
1. An electromagnetic reversing valve manual emergency switch device, the electromagnetic reversing valve comprising a valve body (6), an emergency ejector rod (61), an armature (62) and a reversing spool (63), characterized in that, A center hole (602) and a stepped groove (601) are formed on the top of the valve body (6), the emergency ejector rod (61) penetrates the center hole (602) and extends into the stepped groove (601); The manual emergency switch device comprises a manual emergency end cover (1), an emergency push rod (2) and a manual adjusting roller (3), The manual emergency end cover (1) has a threaded hole for accommodating the inner cavity and the top of the valve body (6), the manual emergency end cover (1) is detachably connected with the valve body (6), the height of the inner cavity of the manual emergency end cover (1) is greater than the height of the extended section of the valve body (6), and a working section is left on the top of the inner cavity; The emergency push rod (2) is provided with a top-in section, a working guide section, a first connecting section and a second connecting section from bottom to top, the working guide section is freely axially movable on the working section on the top of the inner cavity, the lower end of the top-in section extends into the stepped groove (601) and abuts against the top end surface of the emergency ejector rod (61), the first connecting section is connected with the threaded hole of the manual emergency end cover (1), the second connecting section extends out of the manual emergency end cover (1) and is connected with the manual adjusting roller (3).
2. An electromagnetic direction valve manual emergency switch device according to claim 1, characterized in that At least one positioning sealing ring (5) is arranged on the outer circle of the working section.
3. An electromagnetic directional valve manual emergency switch device according to claim 1, wherein A notch is formed on the side of the adjusting roller (3) and connected with the second connecting section, and a locking screw (4) is arranged in the notch.
4. An electromagnetic directional valve manual emergency switch device according to claim 1, wherein An inner hexagonal groove is arranged on the top end of the second connecting section.
5. An electromagnetic directional valve manual emergency switch device according to claim 1, wherein The axial length of the top-in section is less than the axial depth of the stepped groove (601).