Guide sleeve for connecting electromagnetic valve and thermocouple

Abstract

The utility model discloses a guide sleeve used for connecting an electromagnetic valve and a thermocouple, which comprises a guide sleeve body and a terminal assembly, the guide sleeve body is used for connecting a support frame of the electromagnetic valve, and the terminal assembly comprises a main line terminal and a grounding terminal. The guide sleeve body is provided with a vertically through cavity, the terminal assembly is arranged in the cavity, the guide sleeve body is provided with a limiting part, the limiting part is arranged in the cavity, and the terminal assembly is limited on the limiting part. According to the utility model, the joint of the terminal assembly and the thermocouple is arranged in the guide sleeve, and the joint of the terminal assembly is designed in a hidden manner, so that the joint is protected, the good connection of the electromagnetic valve and the thermocouple is ensured, and the stability and reliability of the connection are improved. Meanwhile, the electromagnetic valve and the thermocouple can be connected more compactly, and the installation and maintenance process of the thermocouple can be simplified.

Description

Technical Field

[0001] This utility model belongs to the field of gas appliance technology, specifically relating to a guide sleeve for connecting solenoid valves and thermocouples. Background Technology

[0002] Existing technology uses connectors to electrically connect thermocouples to gas safety valves (especially solenoid valves), ensuring that when there is no flame in the burner, the thermocouples associated with the burner will cool down, and the solenoid valve will therefore no longer be energized, thus closing the passage of gas into the burner.

[0003] Chinese patent disclosure entitled "Thermocouple Connector Suitable for Connection to Gas Safety Valve and Thermocouple" (Authorization Announcement No.: CN104466522B) describes an invention patent in which the grounding terminal of the connector includes an elastomer that circumferentially surrounds an insulator and extends along an opening. The grounding conductor of the thermocouple is fixed to the grounding terminal of the connector. At this time, the connection between the grounding conductor of the thermocouple and the grounding terminal of the connector is outside the insulator. The grounding terminal, which is exposed to the outside for a long time, is prone to damage, resulting in poor connection, affecting the reliability and stability of the thermocouple, and may cause the equipment to malfunction. Utility Model Content

[0004] The purpose of this invention is to solve the aforementioned technical problems in the prior art by providing a guide sleeve for connecting solenoid valves and thermocouples. This design conceals the connection point of the terminal assembly and the thermocouple within the guide sleeve, protecting the connection and ensuring a good connection between the solenoid valve and the thermocouple, thus improving the stability and reliability of the connection. Simultaneously, it allows for a more compact connection between the solenoid valve and the thermocouple, simplifying the installation and maintenance process of the thermocouple.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A guide sleeve for connecting a solenoid valve and a thermocouple includes a guide sleeve body and a terminal assembly. The guide sleeve body is used to connect to the support frame of the solenoid valve, and the terminal assembly includes a main terminal and a grounding terminal. The guide sleeve body has a through cavity extending vertically, the terminal assembly is disposed within the cavity, and the guide sleeve body has a limiting part disposed within the cavity, limiting the terminal assembly on the limiting part.

[0007] Furthermore, the limiting part is provided with a protrusion, and the terminal assembly is limited on the protrusion.

[0008] Furthermore, both the main line terminal and the grounding terminal are provided with mounting parts, which are limited downward on the protrusions.

[0009] Furthermore, a gap is formed between the limiting part and the guide sleeve body. The limiting part is elastic and undergoes elastic deformation through the gap.

[0010] Furthermore, the guide sleeve body is provided with a limiting member, and a second gap is formed between the limiting member and the insulator. The limiting member is elastic and undergoes elastic deformation through the second gap.

[0011] Furthermore, the limiting member is provided with a limiting protrusion, and a limiting groove is formed between the limiting protrusion and the limiting member. The support frame is provided with a support part, the limiting protrusion is supported on the support part, and the support part is located in the limiting groove.

[0012] Furthermore, the guide sleeve body is provided with a guide block, and the guide block and the limiting member are correspondingly set, with the guide block set along the height direction of the guide sleeve body.

[0013] Furthermore, the guide sleeve body is provided with a locking part, and the locking part and the guide sleeve body are provided with a slot. The support frame is inserted into the slot, the locking part is limited to the outside of the support frame, and the grounding terminal is attached to the outside of the support frame.

[0014] Furthermore, the guide sleeve body is provided with a protruding strip, which is attached to the inner side of the support frame.

[0015] Furthermore, the guide sleeve body is provided with a guide hole, the diameter of which gradually increases from bottom to top.

[0016] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0017] This invention confines the terminal assembly within the cavity of the guide sleeve body, placing the connection between the terminal assembly and the thermocouple inside the guide sleeve. This concealed connection design protects the connection point, ensuring a good connection between the solenoid valve and the thermocouple and improving the stability and reliability of the connection. Simultaneously, it allows for a more compact connection between the solenoid valve and the thermocouple, simplifying the installation and maintenance process of the thermocouple. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a guide sleeve for connecting a solenoid valve and a thermocouple according to this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the guide sleeve body in this utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure in direction A;

[0023] Figure 5 for Figure 4 Sectional view of BB;

[0024] Figure 6 This is a schematic diagram of the connection between the support frame and the guide sleeve body in this utility model;

[0025] Figure 7 for Figure 6 Sectional view of CC;

[0026] Figure 8 This is a schematic diagram of the grounding terminal in this utility model;

[0027] Figure 9 This is a schematic diagram of the main wire terminal in this utility model;

[0028] Figure 10 This is a schematic diagram of the support frame in this utility model;

[0029] Figure 11 This is a schematic diagram of the connection between the solenoid valve and the support frame in this utility model;

[0030] Figure 12 This is a schematic diagram of the connection between the solenoid valve, support frame, and guide sleeve in this utility model;

[0031] Figure 13 This is a schematic diagram of the connection between the solenoid valve and the thermocouple in this utility model.

[0032] In the diagram, 1 - thermocouple;

[0033] 2-Solenoid valve;

[0034] 3-Guide sleeve body; 31a-Limiting component; 31b-Limiting protrusion; 31c-Gap two; 31d-Limiting groove; 32-Protrusion; 33-Cavity; 34-Opening; 35-Clamping part; 36-Slot; 37-Protrusion; 38-Guide hole; 39-Limiting part; 310-Protrusion; 311-Guide block; 312-Gap one;

[0035] 4-Grounding terminal; 41-Connection part; 42-Mounting part one; 43-Guide part;

[0036] 5-Main line terminal; 51-Mounting part two;

[0037] 6-Grounding conductor;

[0038] 7-Phase conductor;

[0039] 8-Support frame; 81-Mounting hole; 82-Support part;

[0040] 9-Pin. Detailed Implementation

[0041] like Figures 1 to 13 As shown, this utility model provides a guide sleeve for connecting a solenoid valve and a thermocouple, which is used to connect thermocouple 1 and solenoid valve 2.

[0042] Thermocouple 1 is provided with a phase conductor 7 and a grounding conductor 6; solenoid valve 2 is correspondingly provided with a support frame 8 and a pin 9, and the support frame 8 is provided with a mounting hole 81. The solenoid valve 2 of this utility model is prior art, therefore the structure of solenoid valve 2 will not be described in detail.

[0043] The guide sleeve is made of plastic and is an insulator. The guide sleeve includes a guide sleeve body 3 and a limiting member 31a. The guide sleeve body 3 has two cavities 33 and an opening 34 that communicates with the cavities 33, allowing the cavities 33 to be vertically connected. The main line terminal 5 is placed in one cavity 33, and the grounding terminal 4 is placed in the other cavity 33. The grounding terminal 4 and the main line terminal 5 form a terminal assembly, allowing them to be concealed within the guide sleeve body 3. This protects the grounding terminal 4 and the main line terminal 5, ensuring a good connection between the solenoid valve 2 and the thermocouple 1, and improving the stability and reliability of the connection. Simultaneously, it allows for a more compact connection between the solenoid valve 2 and the thermocouple 1, simplifying the installation and maintenance process of the thermocouple 1.

[0044] The guide sleeve body 3 is provided with a limiting part 39, which is disposed in the cavity 33. The limiting part 39 is provided with a protrusion 310, and a gap 312 is formed between the limiting part 39 and the guide sleeve body 3. The limiting part 39 is elastic and undergoes elastic deformation through the gap 312. Both the main line terminal and the grounding terminal are provided with mounting parts, which are limited on the protrusion 310.

[0045] The grounding terminal 4 is sheared and bent outward to form a mounting portion 42. When the grounding terminal 4 is installed into the cavity 33 from bottom to top, the limiting portion 39 undergoes elastic deformation through the gap 312. At the same time, the deformed mounting portion 42 passes over the limiting portion 39. After the mounting portion 42 and the limiting portion 39 return to their original deformation, the mounting portion 42 is stopped downward on the protrusion 310 of the limiting portion 39. The grounding terminal 4 is bent to form a connecting portion 41, which is attached to the outside of the support frame 8, so that the grounding terminal 4 is connected to the support frame 8. The grounding terminal 4 is provided with a guide portion 43, and the guide sleeve is provided with a guide groove. The guide portion 43 is provided in the guide groove and moves up and down along the guide groove, so that the grounding terminal 4 is more stable during installation.

[0046] The main wire terminal 5 is cut and bent to form the second mounting part 51. When the main wire terminal 5 is installed into the cavity 33 from bottom to top, the limiting part 39 undergoes elastic deformation through the gap 312. After the limiting part 39 recovers its deformation, the second mounting part 51 is limited downward on the protrusion 310 of the limiting part 39.

[0047] Grounding terminal 4 connects grounding conductor 6 and support frame 8, and main line terminal 5 connects phase conductor 7 and pin 9. The opening 34 corresponding to pin 9 is provided with guide hole 38. The guide hole 38 and pin 9 are correspondingly set. The diameter of guide hole 38 gradually increases from bottom to top, so that the cross-section of guide hole 38 is frustum-shaped, which facilitates the insertion of thermocouple 1 into solenoid valve 2.

[0048] The present invention provides a specific design for the detachable connection of thermocouple 1 and solenoid valve 2: the guide sleeve body 3 is provided with a protrusion 32, and one end of an elastic limiting member 31a is fixed on the protrusion 32. At the same time, there is a gap 31c between the limiting member 31a and the guide sleeve body 3. When the guide sleeve body 3 is inserted into the mounting hole 81, the limiting member 31a undergoes elastic deformation through the gap 31c and is limited at the support frame 8, so that the guide sleeve and the support frame 8 are connected. When a force is applied inward to the limiting member 31a, the limiting member 31a can be disengaged from the support frame 8, and the guide sleeve can be removed from the support frame 8.

[0049] The top of the limiting member 31a is provided with a limiting protrusion 31b, and a limiting groove 31d is formed between the limiting protrusion 31b and the limiting member 31a. The support frame 8 is provided with a support part 82, and the limiting protrusion 31b is supported on the support part 82. The support part 82 is embedded in the limiting groove 31d. When the thermocouple 1 is inserted into the support frame 8, the limiting member 31a in the plastic part will be inverted to lock onto the support frame 8, thereby fixing the guide sleeve. Moreover, considering that the limiting member 31a undergoes elastic deformation through the gap 31c, the width of the limiting protrusion 31b can be increased, thereby increasing the contact area between the limiting member 31a and the support frame 8, making the connection between the limiting member and the support frame 8 more secure.

[0050] The guide sleeve body is provided with two guide blocks 311, and the limiting member 31a is correspondingly provided between the two guide blocks 311. The guide blocks 311 are set along the height direction of the guide sleeve body 3. When the limiting member 31a is installed on the support frame 8, the guide blocks 311 play a guiding role, so that the limiting member 31a and the support frame 8 can be quickly connected.

[0051] The guide sleeve body 3 is provided with a locking part 35, which forms a groove 36 with the guide sleeve body 3. When the guide sleeve body 3 is inserted into the mounting hole 81, the support frame 8 is inserted into the groove 36, so that the locking part 35 is limited to the outside of the support frame 8. The outer side of the guide sleeve body 3 is provided with a protrusion 37, which is in close contact with the inner side of the mounting hole 81. The locking part 35 and the protrusion 37 increase the stability of the connection between the guide sleeve and the support frame 8, preventing shaking and excessive contact gap.

[0052] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A guide sleeve for electromagnetic valve and thermocouple connection, comprising: a guide sleeve body for connecting a support frame of an electromagnetic valve; a terminal assembly comprising a main line terminal and a ground terminal; characterized in that the guide sleeve body is provided with a through cavity from top to bottom, the terminal assembly is arranged in the cavity, the guide sleeve body is provided with a limiting part, the limiting part is arranged in the cavity, and the terminal assembly is limited on the limiting part.

2. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 1, characterized in that: The limiting part is provided with a protruding part, and the terminal assembly is limited on the protruding part.

3. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 2, characterized in that: The main line terminal and the ground terminal are each provided with a mounting part, and the mounting part is downwardly limited on the protruding part.

4. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 1, wherein: A gap one is formed between the limiting part and the guide sleeve body, the limiting part has elasticity, and the limiting part is elastically deformed through the gap one.

5. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 1, wherein: The guide sleeve body is provided with a limiting piece, a gap two is formed between the limiting piece and the guide sleeve body, the limiting piece has elasticity, and the limiting piece is elastically deformed through the gap two.

6. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 5, wherein: The limiting piece is provided with a limiting protrusion, a limiting groove is formed between the limiting protrusion and the limiting piece, the support frame is provided with a support part, the limiting protrusion is supported on the support part, and the support part is arranged in the limiting groove.

7. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 5, wherein: The guide sleeve body is provided with a guide block, the guide block and the limiting piece are correspondingly arranged, and the guide block is arranged along the height direction of the guide sleeve body.

8. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 1, wherein: The guide sleeve body is provided with a clamping part, the guide sleeve body is provided with a notch, the support frame is inserted into the notch, the clamping part is limited on the outer side of the support frame, and the ground terminal is attached to the outer side of the support frame.

9. A guide sleeve for the connection of a solenoid valve and a thermocouple according to claim 8, characterized in that: The guide sleeve body is provided with a convex strip, and the convex strip is attached to the inner side of the support frame.

10. A guide sleeve for connecting a solenoid valve and a thermocouple according to claim 1, wherein: The guide sleeve body is provided with a guide hole, and the caliber of the guide hole gradually increases from bottom to top.

Images