A protective sleeve for a solenoid valve and a solenoid valve assembly

Abstract

This utility model discloses a protective sleeve for an electromagnetic valve and an electromagnetic valve assembly, belonging to the field of electromagnetic valve technology. The protective sleeve includes a cylindrical body with a first end and a second end. The first end has a radially deformable connecting portion, which deforms radially to fit over one end of the electromagnetic valve, placing the electrode inside the sleeve. When a predetermined force is applied away from the electromagnetic valve, the sleeve separates from the electromagnetic valve. This utility model provides a protective sleeve for an electromagnetic valve. By providing a radially deformable connecting portion at the first end of the sleeve, the protective sleeve can be quickly fitted onto the end of the electromagnetic valve and reliably fixed. This prevents damage caused by direct external force acting on the electrode and allows the protective sleeve to be easily detached from the electromagnetic valve when needed, improving the ease of installation and removal.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and more specifically, to a solenoid valve protective sleeve and a solenoid valve assembly. Background Technology

[0002] In the gas stove industry, solenoid valves are widely used for automatic control of gas passages. Their basic working principle is as follows: electrodes are placed at the bottom of the solenoid valve, and these electrodes are electrically connected to a thermocouple. When the stove is ignited, the thermocouple is heated, generating an electromotive force, energizing the solenoid valve and keeping it open. When the flame is extinguished, the thermocouple electromotive force disappears, the solenoid valve is de-energized and closes, thereby cutting off the gas passage and achieving safety protection. Typically, these solenoid valves are manufactured by specialized manufacturers and then transported to downstream stove manufacturers for assembly and use.

[0003] However, as Figure 1 As shown, the bottom electrode of some existing solenoid valves is exposed. During transportation, handling, or assembly, the electrode is easily subjected to collisions or friction with external objects, resulting in scratches or wear on the surface coating. If subjected to a large external impact, the electrode may also bend or deform, affecting the reliability of the electrical connection between the electrode and the thermocouple, and even shortening the service life of the solenoid valve and reducing its safety performance. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the prior art where solenoid valves are easily subjected to mechanical impact, dust contamination and external force during transportation, assembly and use, resulting in electrode bending, damage or failure. This invention provides a solenoid valve protective sleeve that is easy to install and can effectively protect the end of the solenoid valve.

[0005] This utility model embodiment also proposes a solenoid valve assembly with the above-mentioned protective sleeve.

[0006] The technical solution adopted by this utility model is as follows: a protective sleeve for an electromagnetic valve is provided, including a cylindrical sleeve body, the sleeve body having a first end and a second end opposite to each other; the first end is provided with a radially deformable connecting part, the connecting part is radially deformed to be sleeved on one end of the electromagnetic valve, so that the electrode is located inside the sleeve body; when a predetermined force is applied in the direction away from the electromagnetic valve, the sleeve body separates from the electromagnetic valve.

[0007] By adopting the above technical solution, this utility model provides a radially deformable connecting part at the first end of the sleeve body, which enables the protective sleeve to be quickly fitted onto the end of the solenoid valve and reliably fixed. This not only prevents external forces from directly acting on the electrodes and causing damage, but also allows the protective sleeve to be easily removed from the solenoid valve by external force when needed, thus improving the convenience of installation and removal.

[0008] Unlike the connecting sleeves fixedly installed at the tail of the solenoid valve in existing technologies, the protective sleeve of this invention is a temporary attachment structure, mainly used to protect the electrodes during transportation, handling, and assembly. During the final installation of the solenoid valve, this protective sleeve can be removed and will not become a permanent structure of the solenoid valve, thus ensuring the normal functioning of the solenoid valve. Through this detachable and attachable design, this protective sleeve effectively solves the problem of electrode damage during transportation or assembly in existing technologies.

[0009] According to one embodiment of the present invention, the sleeve has an end cap, and the connecting portion is located at the edge of the end cap. By providing an end cap at the end of the sleeve, the space around the solenoid valve electrode can be further sealed, thereby enhancing the protective effect and preventing external impurities from entering.

[0010] According to one embodiment of the present invention, the connecting portion has multiple notches, thereby allowing the connecting portion to undergo radial deformation.

[0011] According to one embodiment of the present invention, the end cap is provided with a through hole, through which the electrode can be inserted into the sleeve.

[0012] According to one embodiment of this utility model, the connecting portion and the end cap together define a receiving space for accommodating the end of the solenoid valve. This receiving space can effectively cover the electrode seat on the solenoid valve, thereby further improving the overall protection performance.

[0013] According to one embodiment of this utility model, the number of through holes is set to be consistent with the number of electrodes. This corresponding design ensures that the electrodes can pass through the through holes one by one, avoiding electrode misalignment, bending, or compression, thereby improving positioning accuracy and reliability.

[0014] According to one embodiment of this utility model, the sleeve, the end cap, and the connecting part are integrally molded. This integral molding design avoids the assembly of multiple parts, improves structural strength and overall sealing, and reduces production costs.

[0015] According to one embodiment of the present invention, one axial end of the connecting portion is provided with a chamfer, which is used to guide the insertion of the solenoid valve. More specifically, the chamfer is used to guide the electrode seat into the connecting portion.

[0016] According to one embodiment of this utility model, a shoulder is provided on the outer periphery of the second end of the sleeve. The shoulder is used to bear the force when force is applied in a direction away from the solenoid valve. The shoulder structure ensures that the protective sleeve is subjected to uniform force during disassembly, preventing fingers from slipping off.

[0017] This utility model also provides a solenoid valve assembly, including a solenoid valve and a solenoid valve protective sleeve of any of the above embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the solenoid valve in an embodiment of this utility model.

[0020] Figure 2 This is a perspective view of the protective sleeve in an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the protective sleeve in an embodiment of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Solenoid valve; 2. Protective sleeve;

[0024] 11. Electrode holder; 12. Electrode;

[0025] 21. Sleeve body; 22. End cap; 23. Connecting part;

[0026] 21a. Protruding shoulder;

[0027] 22a. Through hole;

[0028] 23a. Notch; 23b. Chamfer. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0030] like Figure 1 As shown in the figure, one end of the solenoid valve 1 is provided with an electrode seat 11, and two electrodes 12 are provided on the electrode seat 11. In some embodiments, the solenoid valve 1 has only one electrode 12. The electrode seat 11 is cylindrical, and in some embodiments, the outer periphery of the electrode seat 11 is provided with external threads or other connecting structures.

[0031] like Figure 2-3As shown, this embodiment discloses a protective sleeve 2 for a solenoid valve 1, including a cylindrical sleeve 21 with opposing first and second ends. The first end is provided with a radially deformable connecting portion 23, which deforms radially to fit onto one end of the solenoid valve 1, so that the electrode 12 is located inside the sleeve 21. When a predetermined force is applied away from the solenoid valve 1, the sleeve 21 separates from the solenoid valve 1. By providing a radially deformable connecting portion 23 at the first end of the sleeve 21, the protective sleeve 2 can be quickly fitted onto the end of the solenoid valve 1 and reliably fixed, thus preventing external forces from directly acting on the electrode 12 and causing damage.

[0032] Furthermore, combined Figure 3 As shown, in this embodiment, the sleeve 21 is cylindrical with a cylindrical inner hole. The end cap 22 seals the first end of the sleeve 21, and the outer diameter of the end cap 22 is larger than the outer diameter of the sleeve 21. The connecting portion 23 is a columnar structure formed by extending axially from the edge of the end cap 22. The end cap 22 can form a closed space at the end of the sleeve 21. The connecting portion 23 is provided with two notches 23a, thereby allowing the connecting portion 23 to undergo radial deformation.

[0033] Furthermore, the sleeve 21, end cap 22, and connecting part 23 are integrally molded structures. The integral molding design reduces the number of parts, avoids sealing and strength problems caused by assembling multiple parts, and reduces production costs.

[0034] Furthermore, combining Figure 2 As shown, one axial end of the connecting part 23 is provided with a chamfer 23b. The chamfer 23b is used to guide the solenoid valve 1 into the protective sleeve 2, and more specifically to guide the electrode seat 11 to smoothly enter the connecting part 23, reducing installation resistance and preventing damage to the electrode 12. The outer periphery of the second end of the sleeve 21 is provided with a shoulder 21a. The shoulder 21a is used to withstand external force when force is applied in the direction away from the solenoid valve 1.

[0035] In another embodiment, a solenoid valve 1 assembly is provided, including a solenoid valve 1 and a protective sleeve 2 for the solenoid valve 1 in this embodiment. By configuring the removable protective sleeve 2 on the solenoid valve 1, the electrode 12 can be protected in all directions during transportation, handling and assembly, while ensuring the long-term functionality and safety of the solenoid valve 1.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A protective sleeve for a solenoid valve, characterized in that: Includes a cylindrical sleeve (21) having a first end and a second end opposite to each other; the first end is provided with a radially deformable connecting part (23), which is radially deformable to fit onto one end of the solenoid valve (1), so that the electrode (12) is located inside the sleeve (21); when a predetermined force is applied in a direction away from the solenoid valve (1), the sleeve (21) separates from the solenoid valve (1).

2. The solenoid valve protective sleeve according to claim 1, characterized in that: The sleeve (21) has an end cap (22), and the connecting part (23) is located at the edge of the end cap (22).

3. A solenoid valve protective sleeve according to claim 2, characterized in that: The connecting portion (23) has multiple notches (23a) to allow the connecting portion (23) to undergo radial deformation.

4. A protective sleeve for a solenoid valve according to claim 2, characterized in that: The end cap (22) is provided with a through hole (22a), through which the electrode (12) can be inserted into the sleeve (21).

5. A solenoid valve protective sleeve according to claim 4, characterized in that: The connecting part (23) and the end cap (22) together define a receiving space for accommodating the end of the solenoid valve (1).

6. A solenoid valve protective sleeve according to claim 4, characterized in that: The number of through holes (22a) is set to be the same as the number of electrodes (12).

7. A solenoid valve protective sleeve according to claim 2, characterized in that: The sleeve (21), the end cap (22), and the connecting part (23) are integrally formed.

8. A protective sleeve for a solenoid valve according to claim 1, characterized in that: The connecting part (23) has a chamfer (23b) at one axial end, which is used to guide the insertion of the solenoid valve (1).

9. A solenoid valve protective sleeve according to claim 1, characterized in that: The second end of the sleeve (21) is provided with a shoulder (21a), which is used to bear the force when force is applied in a direction away from the solenoid valve (1).

10. A solenoid valve assembly, characterized in that: Solenoid valve (1) and protective sleeve (2) as described in any one of claims 1-9.

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