Hidden joint of heating wire
Through the hidden joint design, the combination of sealing groove, sealing block and reciprocating chamber contacts is used to solve the circuit short circuit caused by water seepage of heating cable joints in rainy weather, and realize the reliable control of sealing and indicator lights at the docking.
Patent Information
- Application Number
- CN202422340736.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The connectors of existing heating cables are prone to seepage in rainy weather, causing circuit short circuits, and the external docking method in the prior art poses safety hazards.
The hidden joint design is adopted, and the sealing connection between the butt sleeve and the joint is achieved through the sealing groove and the sealing block, and the contacts in the reciprocating chamber are used to control the on and off of the indicator light, combining the guidance and constraints of the guide groove and the hoisting rod to ensure that the butt is hidden inside.
The seal at the docking point is realized to prevent circuit short circuits caused by water seepage, and the on-off of the indicator light is controlled by hiding the switch, which improves safety and reliability.
Smart Images
Figure CN223182349U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating wire joints, in particular to a concealed joint of a heating wire. Background Technique
[0002] The heating wire, also known as a heating cable, is mainly used for household heating, plant cultivation, pipeline insulation and other purposes. The heating cable is made of single or multiple alloy electric heating wires as the heat source, high-purity, high-temperature, electrofused crystalline magnesium oxide as the heat-conducting insulator, seamless continuous stainless steel or copper pipe as the sheath, and is manufactured by a special production process. In places with strong corrosive effects, a PE or low-smoke halogen-free outer sheath can be added.
[0003] At present, when docking heating cables, the cable joints are externally docked. This docking method is prone to water seepage at the docking part in rainy weather, resulting in a short circuit of the circuit. In order to improve its safety, the docking part is now set in an internal concealed style. Summary of the Invention
[0004] The utility model aims to solve the problems of the prior art and provides a concealed joint of a heating wire.
[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is as follows:
[0006] A concealed joint of a heating wire includes a docking sleeve and a docking head. One side of the docking sleeve and one side of the docking head are both fixed with a cable body. The other side of the docking sleeve is provided with a sealing groove. Two jacks are opened on one inner wall of the sealing groove. Two copper guide rods are fixed on the other side of the docking head. Both of the two copper guide rods are correspondingly inserted into the jacks. A sealing block is arranged between the inner walls of the two copper guide rods near one side edge. The sealing block is fixed on the outer surface of the other side of the docking head.
[0007] Optionally, two indicator lights are fixed on the top of the docking sleeve. Guide grooves are opened on the outer surface of both of the two copper guide rods near one end edge.
[0008] Optionally, both of the two guide grooves are located on the top of the copper guide rods, and one side of both of the two guide grooves penetrates to one end of the copper guide rods.
[0009] Optionally, two reciprocating cavities are opened near the top edge inside the docking sleeve. Jacking rods are arranged inside both of the two reciprocating cavities.
[0010] Optionally, the bottoms of both of the two jacking rods slide through to the inside of the jacks, and the bottoms of both of the two jacking rods correspondingly slide between the inner walls of the guide grooves.
[0011] Optionally, insulating plates are slidably connected between the inner walls of the two reciprocating chambers. The bottoms of the two insulating plates are correspondingly fixed to the tops of the jacking rods. Springs are fixed to the bottoms of the two insulating plates, and the bottoms of the two springs are correspondingly fixed to the inner bottom surfaces of the reciprocating chambers.
[0012] Optionally, two first contacts are fixed to the inner top surfaces of the two reciprocating chambers. The two first contacts are correspondingly electrically connected to the indicator lights. Two second contacts are fixed to the tops of the two insulating plates, and the second contacts are correspondingly located directly below the first contacts.
[0013] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below:
[0014] 1. In the present utility model, when the docking sleeve and the docking head are docked with each other, through the mutual engagement of the sealing block and the sealing groove, the connection between the docking sleeve and the docking head can be sealed, and the jack is arranged inside the sealing groove, so that the copper conducting rod can be docked inside the docking sleeve during docking, hiding the docking part inside it, preventing the docking part from being exposed outside. At the same time, a reciprocating chamber is arranged inside the docking sleeve during docking, and a hidden switch is formed by the first contact and the second contact inside the reciprocating chamber to control the on and off of the indicator light.
[0015] 2. In the present utility model, when the copper conducting rod is inserted into the jack, through the mutual engagement of the bottom of the jacking rod and the guiding groove, it can be constrained and guided, and at the same time, the jacking rod is jacked upward. When the jacking rod slides upward, it will drive the insulating plate to slide upward inside the reciprocating chamber until the first contact and the second contact are mutually attached, then the indicator light can be turned on. At this time, the docking sleeve and the docking head are in a docking and engaging state. Springs are fixed between the bottom of the insulating plate and the inner bottom surface of the reciprocating chamber, which can reset the insulating plate by the elastic force of the spring when the docking sleeve and the docking head are separated later. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:
[0017] Figure 1 is a top-down three-dimensional structural schematic diagram of a hidden joint of a heating wire proposed by the present utility model;
[0018] Figure 2 is a front three-dimensional structural schematic diagram of the docking sleeve in a hidden joint of a heating wire proposed by the present utility model;
[0019] Figure 3This is a schematic perspective sectional view of a docking sleeve in a concealed joint of a heating wire proposed by the present utility model;
[0020] Figure 4 The present utility model Figure 3 is an enlarged view of part A in it.
[0021] In the attached drawings, the list of components represented by each reference numeral is as follows:
[0022] 1. Docking sleeve; 2. Docking head; 3. Indicator light; 4. Cable body; 5. Copper guide rod; 6. Guide groove; 7. Sealing groove; 8. Jack; 9. Reciprocating cavity; 10. First contact; 11. Second contact; 12. Insulating plate; 13. Lifting rod; 14. Spring; 15. Sealing block.
[0023] It should be noted that these attached drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Specific embodiments
[0024] Now, the present utility model will be further described in detail with reference to the attached drawings.
[0025] Example 1, as Figures 1-4 shown, the present utility model provides a technical solution for a concealed joint of a heating wire: including a docking sleeve 1 and a docking head 2. Cable bodies 4 are fixed to one side of the docking sleeve 1 and one side of the docking head 2 respectively. A sealing groove 7 is opened on the other side of the docking sleeve 1. Two jacks 8 are opened on the inner wall of one side of the sealing groove 7. Two copper guide rods 5 are fixed to the other side of the docking head 2. The two copper guide rods 5 are respectively inserted into the inside of the jacks 8. A sealing block 15 is arranged between the inner walls of the two copper guide rods 5 near one side edge. The sealing block 15 is fixed on the outer surface of the other side of the docking head 2.
[0026] The effect achieved by the entire Example 1 is that when the docking sleeve 1 and the docking head 2 are docked with each other, through the mutual engagement of the sealing block 15 and the sealing groove 7, the connection between the docking sleeve 1 and the docking head 2 can be sealed. And the jacks 8 are arranged inside the sealing groove 7, so that the copper guide rods 5 can be docked inside the docking sleeve 1 during docking, hiding the docking part inside it, preventing the docking part from being exposed outside. At the same time, a reciprocating cavity 9 is arranged inside the docking sleeve 1 during docking. A hidden switch is formed by the first contact 10 and the second contact 11 inside the reciprocating cavity 9 to control the on and off of the indicator light 3.
[0027] Example 2, as Figures 1-4As shown in the figure, two indicator lights 3 are fixed at the top of the docking sleeve 1. Guide grooves 6 are provided on the outer surfaces of the two copper guide rods 5 near one end edge. Both of the two guide grooves 6 are located at the top of the copper guide rods 5, and one side of each of the two guide grooves 6 penetrates to one end of the copper guide rod 5. Two reciprocating chambers 9 are provided near the top edge inside the docking sleeve 1. Lifting rods 13 are arranged inside both of the two reciprocating chambers 9. The bottoms of the two lifting rods 13 slide through the inner part of the jack 8. The bottoms of the two lifting rods 13 correspondingly slide between the inner walls of the guide grooves 6. Insulating plates 12 are slidably connected between the inner walls of the two reciprocating chambers 9. The bottoms of the two insulating plates 12 are correspondingly fixed on the tops of the lifting rods 13. Springs 14 are fixed to the bottoms of the two insulating plates 12. The bottoms of the two springs 14 are correspondingly fixed on the inner bottom surfaces of the reciprocating chambers 9. Two first contacts 10 are fixed to the inner top surfaces of the two reciprocating chambers 9. The two first contacts 10 are electrically connected to the indicator lights 3 correspondingly. Two second contacts 11 are fixed to the tops of the two insulating plates 12. The second contacts 11 are correspondingly located directly below the first contacts 10.
[0028] The overall effect achieved by the entire Embodiment 2 is that when the copper guide rod 5 is inserted into the jack 8, the bottom of the lifting rod 13 is engaged with the guide groove 6 to constrain and guide it, and at the same time, the lifting rod 13 is lifted upward. When the lifting rod 13 slides upward, it drives the insulating plate 12 to slide upward inside the reciprocating chamber 9 until the first contact 10 and the second contact 11 are in contact with each other, and then the indicator light 3 can be conducted. At this time, the docking sleeve 1 and the docking head 2 are in a docking and engaging state. Springs 14 are fixed between the bottom of the insulating plate 12 and the inner bottom surface of the reciprocating chamber 9. When the docking sleeve 1 and the docking head 2 are separated from each other subsequently, the insulating plate 12 can be reset by the elastic force of the springs 14.
[0029] Working principle: When using this device, when the docking sleeve 1 and the docking head 2 are docked with each other, through the mutual engagement of the sealing block 15 and the sealing groove 7, the connection between the docking sleeve 1 and the docking head 2 can be sealed, and the jack 8 is arranged inside the sealing groove 7, so that when docking, the copper guide rod 5 can be docked inside the docking sleeve 1, hiding the docking part inside it to prevent the docking part from being exposed outside. At the same time, a reciprocating cavity 9 is arranged inside the docking sleeve 1 during docking. A hidden switch is formed by the first contact 10 and the second contact 11 inside the reciprocating cavity 9 to control the on and off of the indicator light 3. When the copper guide rod 5 is inserted into the jack 8, through the mutual engagement of the bottom of the lifting rod 13 and the guide groove 6, it can be constrained and guided, and at the same time, the lifting rod 13 is lifted upward. When the lifting rod 13 slides upward, it will drive the insulating plate 12 to slide upward inside the reciprocating cavity 9 until the first contact 10 and the second contact 11 are mutually attached, then the indicator light 3 can be turned on. At this time, the docking sleeve 1 and the docking head 2 are in a docking and engaging state. A spring 14 is fixed between the bottom of the insulating plate 12 and the inner bottom surface of the reciprocating cavity 9, so that when the docking sleeve 1 and the docking head 2 are separated from each other subsequently, the insulating plate 12 can be reset by the elastic force of the spring 14.
[0030] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.
Claims
1. A hidden joint of a heating wire, comprising a docking sleeve (1) and a docking head (2), characterized in that: One side of the docking sleeve (1) and one side of the docking head (2) are both fixed with a cable body (4). On the other side of the docking sleeve (1), a sealing groove (7) is provided. On one inner wall of the sealing groove (7), two jacks (8) are provided. On the other side of the docking head (2), two copper guide rods (5) are fixed. The two copper guide rods (5) are respectively inserted into the interiors of the jacks (8). Between the inner walls of the two copper guide rods (5) near one side edge, a sealing block (15) is provided. The sealing block (15) is fixed on the outer surface of the other side of the docking head (2).
2. The concealed joint of a heating wire according to claim 1, characterized in that: On the top of the docking sleeve (1), two indicator lights (3) are fixed. On the outer surface of the two copper guide rods (5) near one end edge, guide grooves (6) are provided.
3. The concealed joint of a heating wire according to claim 2, characterized in that: Both of the two guide grooves (6) are located on the top of the copper guide rod (5), and one side of both of the two guide grooves (6) penetrates to one end of the copper guide rod (5).
4. The concealed joint of a heating wire according to claim 3, characterized in that: Near the top edge inside the docking sleeve (1), two reciprocating cavities (9) are provided. Inside the two reciprocating cavities (9), jacking rods (13) are provided.
5. The concealed joint of a heating wire according to claim 4, characterized in that: The bottoms of the two jacking rods (13) respectively slide through the interiors of the jacks (8), and the bottoms of the two jacking rods (13) respectively slide between the inner walls of the guide grooves (6).
6. The concealed joint of a heating wire according to claim 5, characterized in that: Between the inner walls of the two reciprocating cavities (9), insulating plates (12) are slidably connected. The bottoms of the two insulating plates (12) are respectively fixed on the tops of the jacking rods (13). Springs (14) are fixed to the bottoms of the two insulating plates (12), and the bottoms of the two springs (14) are respectively fixed on the inner bottom surfaces of the reciprocating cavities (9).
7. The concealed joint of a heating wire according to claim 6, characterized in that: On the inner top surfaces of the two reciprocating cavities (9), two first contacts (10) are fixed. The two first contacts (10) are respectively electrically connected to the indicator lights (3). On the tops of the two insulating plates (12), two second contacts (11) are fixed. The second contacts (11) are respectively located directly below the first contacts (10).