Waterproof plug terminal assembly for water heating blanket host

Abstract

The utility model discloses a waterproof paired plug terminal assembly for a water heating blanket host, and particularly relates to the technical field of waterproof paired plugs, the waterproof paired plug terminal assembly comprises a fixed terminal and a movable terminal, the movable terminal comprises a second shell, and a push rod is arranged in the second shell. The end, facing the fixed terminal, of the push rod extends out of the movable terminal and is fixedly provided with a ball, the fixed terminal comprises a first shell, a sealing piece is arranged in the first shell, a sleeve fixed to the inner wall of the first shell is arranged in the sealing piece, and two outer through holes are formed in the outer end of the sleeve. The central pipe is pushed to slide through the push rod, so that the outer through hole and the inner through hole coincide in position, flowing of water flow is controlled, key channels of the water flow, the outer through hole and the inner through hole are both located on the outer side of the push rod, the push rod cannot block the outer through hole and the inner through hole, and unsmooth flowing of the water flow caused by blocking of the outer through hole and the inner through hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof butt plugs, in particular to a waterproof butt plug terminal assembly for a water-heating blanket host. Background Art

[0002] A water-heating blanket can also be called a hydrothermal blanket. By heating water and circulating it, the hot water is used to transfer heat to the human body. Compared with traditional electric blankets, water-heating blankets are safer. And because water has a larger specific heat capacity, its temperature is more constant, and the human body will be more comfortable when using it.

[0003] The water heating blanket mainly consists of two parts: the main unit and the blanket surface, which are connected by pipes and plugs. The plugs need to be sufficiently waterproof, such as a waterproof plug terminal assembly for a water heating blanket main unit disclosed in the prior art with the publication number CN217031628U.

[0004] The plug in the prior art needs to push one end of the drainage guide column when plugging in, so that the drainage guide column moves, thereby controlling the opening or closing of the plug. However, when pushing the drainage guide column, the relevant components contact the water inlet end of the drainage guide column, which will hinder the water flow from entering the drainage guide column, thereby causing the water flow to be poor. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof plug terminal assembly for a water heating blanket host, which controls the flow of water through a push rod. The external through hole and the internal through hole, which are key channels for the water flow, are both located on the outside of the push rod, so the push rod will not block the two, thereby avoiding the poor flow of water.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a waterproof plug terminal assembly for a water-heating blanket host, comprising a fixed terminal and a movable terminal, wherein the movable terminal comprises a second housing, a push rod is provided inside the second housing, the push rod extends toward one end of the fixed terminal to the outside of the movable terminal and is fixed with a ball;

[0007] The fixed terminal includes a first housing, a sealing member is provided inside the first housing, a sleeve fixed to the inner wall of the first housing is provided inside the sealing member, the outer end of the sleeve is provided with two outer through holes, the inner end of the sleeve is provided with a central tube, the outer end of the central tube is provided with two inner through holes;

[0008] A spring is fixedly provided at one end of the central tube away from the movable terminal, and one end of the spring extends to the outside of the sleeve.

[0009] Furthermore, a second transverse plate is fixedly provided on the inner wall of the second shell, the push rod is fixedly provided on the outer end of the second transverse plate, a first transverse plate is fixedly provided on the inner wall of the first shell, and one end of the spring is fixedly connected to the first transverse plate.

[0010] Furthermore, a second rubber sleeve is fixedly provided on the outer end of the first shell, an outer plug is fixedly provided on one end of the second shell facing the fixed terminal, and the outer ends of the second shell and the outer plug are wrapped with a first rubber sleeve to prevent slipping.

[0011] Furthermore, a first connecting tube is fixedly provided at one end of the first shell away from the movable terminal, and the first connecting tube is connected to the water heating blanket main unit; a sealing end cover is provided at one end of the second shell away from the fixed terminal through a sealing bearing, and a second connecting tube is fixed on the sealing end cover, and the second connecting tube is connected to the blanket surface of the water heating blanket.

[0012] Furthermore, an annular groove is formed on one end of the outer insert tube facing the fixed terminal, the inner side wall of the annular groove is smooth, and the outer side wall of the annular groove is provided with a thread.

[0013] Furthermore, an inner tube is fixedly provided on one end of the first housing facing the movable terminal, and in the connected state, one end of the inner tube extends into the inside of the annular groove;

[0014] The outer end of the inner insert is connected to the outer side wall of the annular groove through a thread, and a sealing gasket in contact with the inner side wall of the annular groove is fixed on the inner wall of the inner insert to play a sealing role.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The push rod pushes the central tube to slide, so that the positions of the outer hole and the inner hole coincide with each other, thereby controlling the flow of water. The outer hole and the inner hole, which are the key channels for water flow, are both located on the outside of the push rod, so the push rod will not block the two, thus avoiding the poor flow of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a structural diagram of the connection state of the fixed terminal and the movable terminal of the utility model;

[0019] Figure 2 This is an internal structure diagram of the fixed terminal and the movable terminal in the connection state of the utility model;

[0020] Figure 3 For the utility model Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 This is a diagram of the internal structure of the fixed terminal of the utility model;

[0022] Figure 5 This is a diagram of the internal structure of the movable terminal of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Fixed terminal; 2. Movable terminal; 3. First connecting tube; 4. Second connecting tube; 5. First shell; 6. Seal; 601. Sleeve; 602. External through hole; 603. Center tube; 604. Internal through hole; 605. Spring; 7. Second shell; 8. First rubber sleeve; 9. External insert; 901. Annular groove; 10. Push rod; 11. Sealing end cap; 12. Second rubber sleeve; 13. First horizontal plate; 14. Sealing gasket; 15. Internal insert; 16. Ball; 17. Second horizontal plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-Figure 5 The present invention shows a waterproof plug terminal assembly for a water-heating blanket main unit, comprising a fixed terminal 1 and a movable terminal 2. The movable terminal 2 comprises a second housing 7, within which a push rod 10 is disposed. The push rod 10 extends toward one end of the fixed terminal 1 to the outside of the movable terminal 2 and is fixed with a ball 16.

[0027] The fixed terminal 1 includes a first housing 5, a sealing member 6 is provided inside the first housing 5, a sleeve 601 fixed to the inner wall of the first housing 5 is provided inside the sealing member 6, the outer end of the sleeve 601 is provided with two outer through holes 602, and the inner end of the sleeve 601 is provided with a central tube 603, and the outer end of the central tube 603 is provided with two inner through holes 604;

[0028] A spring 605 is fixedly provided at one end of the central tube 603 away from the movable terminal 2 , and one end of the spring 605 extends to the outside of the sleeve 601 .

[0029] A second transverse plate 17 is fixedly provided on the inner wall of the second shell 7 , the push rod 10 is fixedly provided on the outer end of the second transverse plate 17 , a first transverse plate 13 is fixedly provided on the inner wall of the first shell 5 , and one end of the spring 605 is fixedly connected to the first transverse plate 13 .

[0030] In the natural state, the spring 605 stretches naturally, maintaining the position of the central tube 603 inside the sleeve 601, and making the outer through hole 602 staggered with the inner through hole 604. At this time, the first shell 5 is in a closed state, and water cannot flow out. When connecting the fixed terminal 1 and the movable terminal 2, the push rod 10 fixed on the second shell 7 extends into the sleeve 601. As the fixed terminal 1 and the movable terminal 2 are connected deeper, the ball 16 at one end of the push rod 10 contacts the central tube 603 and pushes the central tube 603 to move inside the sleeve 601. The spring 6 05 is compressed, and when the two inner through holes 604 move to coincide with the two outer through holes 602 respectively, the water flow inside the first shell 5 can enter the center tube 603 through the outer through holes 602 and the inner through holes 604, and then enter the first shell 5, realizing the circulation of water between the fixed terminal 1 and the movable terminal 2. In this connection method, the outer through hole 602 and the inner through hole 604, which are the key channels for water flow, are both located on the outside of the push rod 10, so the push rod 10 will not block the two, thereby avoiding the poor flow of water.

[0031] Water heating blankets need to transmit water between the host and the blanket surface, such as Figure 1 、 Figure 2 As shown, a second rubber sleeve 12 is fixed to the outer end of the first shell 5, and an outer plug 9 is fixed to the end of the second shell 7 facing the fixed terminal 1. The outer ends of the second shell 7 and the outer plug 9 are wrapped with a first rubber sleeve 8 to prevent slipping.

[0032] A first connecting tube 3 is fixedly provided at the end of the first shell 5 away from the movable terminal 2, and the first connecting tube 3 is connected to the water heating blanket main unit. A sealing end cover 11 is provided at the end of the second shell 7 away from the fixed terminal 1 through a sealing bearing, so that the second shell 7 can rotate freely relative to the sealing end cover 11. A second connecting tube 4 is fixed on the sealing end cover 11, and the second connecting tube 4 is connected to the blanket surface of the water heating blanket.

[0033] The fixed terminal 1 is connected to the water heating blanket main unit through the first connecting pipe 3, and the movable terminal 2 is connected to the blanket surface through the second connecting pipe 4. After the fixed terminal 1 and the movable terminal 2 are connected, the water flow at the water heating blanket main unit can pass through the first connecting pipe 3, the first shell 5, the second shell 7, and the second connecting pipe 4 in sequence and finally reach the blanket surface, realizing the flow of water between the two.

[0034] Fix the fixed terminal 1 and the movable terminal 2 in a screw connection, such as Figure 2-Figure 5 As shown, an annular groove 901 is formed at one end of the outer tube 9 facing the fixed terminal 1 , the inner wall of the annular groove 901 is smooth, and a thread is formed on the outer wall of the annular groove 901 .

[0035] An inner tube 15 is fixedly provided on one end of the first housing 5 facing the movable terminal 2. In the connected state, one end of the inner tube 15 extends into the inner portion of the annular groove 901.

[0036] The outer end of the inner tube 15 is connected to the outer wall of the annular groove 901 through a thread. A sealing gasket 14 is fixed on the inner wall of the inner tube 15 and contacts the inner wall of the annular groove 901. The sealing gasket 14 plays a sealing role.

[0037] When connecting the fixed terminal 1 and the movable terminal 2, it is necessary to align the inner tube 15 at one end of the first shell 5 and insert it into the annular groove 901, while the outer tube 9 is connected and fixed to the second shell 7. After the inner tube 15 enters the annular groove 901, the sealing gasket 14 is in close contact with the smooth inner wall of the annular groove 901, which plays a role in sealing and waterproofing. At the same time, it is necessary to rotate the second shell 7 so that the outer tube 9 rotates relative to the inner tube 15. The outer end of the inner tube 15 is connected to the outer wall of the annular groove 901 through a thread, thereby realizing a direct threaded connection between the fixed terminal 1 and the movable terminal 2.

[0038] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waterproof plug terminal assembly for a water-heating blanket host, comprising a fixed terminal (1) and a movable terminal (2), characterized in that: The movable terminal (2) comprises a second housing (7), a push rod (10) is provided inside the second housing (7), and the push rod (10) extends toward one end of the fixed terminal (1) to the outside of the movable terminal (2) and is fixed with a ball (16); The fixed terminal (1) comprises a first housing (5), a sealing member (6) is provided inside the first housing (5), a sleeve (601) fixed to the inner wall of the first housing (5) is provided inside the sealing member (6), two outer through holes (602) are provided at the outer end of the sleeve (601), a central tube (603) is provided inside the sleeve (601), and two inner through holes (604) are provided at the outer end of the central tube (603); A spring (605) is fixedly provided at one end of the central tube (603) away from the movable terminal (2), and one end of the spring (605) extends to the outside of the sleeve (601).

2. The waterproof plug terminal assembly for a water-heating blanket host according to claim 1, characterized in that: A second transverse plate (17) is fixedly provided on the inner wall of the second shell (7), the push rod (10) is fixedly provided on the outer end of the second transverse plate (17), a first transverse plate (13) is fixedly provided on the inner wall of the first shell (5), and one end of the spring (605) is fixedly connected to the first transverse plate (13).

3. The waterproof plug terminal assembly for a water-heating blanket host according to claim 1, characterized in that: A second rubber sleeve (12) is fixedly provided on the outer end of the first housing (5), an outer plug (9) is fixedly provided on the end of the second housing (7) facing the fixed terminal (1), and the outer ends of the second housing (7) and the outer plug (9) are wrapped with a first rubber sleeve (8).

4. The waterproof plug terminal assembly for a water-heating blanket host according to claim 1, characterized in that: A first connecting tube (3) is fixedly provided at one end of the first housing (5) away from the movable terminal (2), and a sealing end cover (11) is fixedly provided at one end of the second housing (7) away from the fixed terminal (1) via a sealing bearing, with a second connecting tube (4) fixedly provided on the sealing end cover (11).

5. The waterproof plug terminal assembly for a water-heating blanket host according to claim 3, characterized in that: An annular groove (901) is provided on one end of the outer insert (9) facing the fixed terminal (1); the inner wall of the annular groove (901) is smooth, and the outer wall of the annular groove (901) is provided with a thread.

6. The waterproof plug terminal assembly for a water-heating blanket host according to claim 2, characterized in that: An inner tube (15) is fixedly provided on one end of the first housing (5) facing the movable terminal (2); in the connected state, one end of the inner tube (15) extends into the interior of the annular groove (901); The outer end of the first transverse plate (13) is connected to the outer side wall of the annular groove (901) via a thread, and a sealing gasket (14) in contact with the inner side wall of the annular groove (901) is fixed on the inner wall of the inner tube (15).

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