Novel long-life sealing end socket

Abstract

The utility model discloses a novel long-life sealing end socket which comprises a plugging base, a front sealing ring and an adjusting nut seat, a straight-through connecting pipe is installed in a puncture rubber plug in a puncturing mode, the bottom of the straight-through connecting pipe penetrates through the plugging base and is provided with a solid threaded column, a threaded connecting sleeve is arranged at the center of the front sealing ring, and the adjusting nut seat is arranged on the front sealing ring. The straight-through connecting pipe is in threaded connection with the threaded connecting sleeve of the front sealing ring through the solid threaded column, and the top of the straight-through connecting pipe is connected with the adjusting nut seat. The bottom of the straight-through connecting pipe penetrates through the plugging base and is provided with the solid threaded column, the threaded connecting sleeve is arranged in the center of the front sealing ring, and the straight-through connecting pipe is in threaded connection with the threaded connecting sleeve of the front sealing ring through the solid threaded column. By means of the structure, the plugging base, the sealing ring fence frame, the inflatable sealing ring and other structures have good connection strength after being installed, looseness is not prone to occurring, the connection sealing effect is ensured, and meanwhile the phenomenon that the sealing performance is reduced due to structure looseness is avoided.

Description

Technical Field

[0001] The utility model relates to a new long - life sealing head, belonging to the technical field of sealing heads. Background Technique

[0002] In the water - cooling system of an automobile, a large number of connecting pipe fittings and sealing joints are required. The sealing performance of the sealing joint is related to the service life and stability of the water - cooling system. The prior art adopts a structure in which an O - ring is cooperated with a structural member to press the O - ring to achieve the sealing effect of the sealing joint; Patent CN201611207834.5 discloses a new type of sealing joint, including a second sealing ring. One end of the second sealing ring is provided with a first socket section that is in interference fit with the first through - hole, and the other end is provided with a second socket section that is in interference fit with the second through - hole. The radial cross - section diameter at any position of the first socket section is smaller than the maximum radial cross - section diameter of the second socket section. This technical solution adopts two sealing methods: interference fit and end - to - end sealing. The introduction of the interference - fit method further improves the sealing performance of the present invention and reduces the risk of a sharp decline in sealing performance due to a decrease in connection tightness.

[0003] The disadvantages of the above - disclosed sealing joint are that the installation of the sealing structure components is not firm, and it is very easy to cause connection loosening due to system pressure changes. Moreover, it cannot achieve three - dimensional multi - level sealing. Therefore, we design a new long - life sealing head. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new long - life sealing head to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A new long - life sealing head, including a plugging base, a front - end sealing ring and an adjusting nut seat. A puncture rubber plug is arranged in the middle of the plugging base. A straight - through connecting pipe is punctured and installed inside the puncture rubber plug. The bottom of the straight - through connecting pipe passes through the plugging base and is provided with a solid threaded column. A threaded connecting sleeve is arranged at the center of the front - end sealing ring. The straight - through connecting pipe is thread - connected to the threaded connecting sleeve of the front - end sealing ring through the solid threaded column. The top of the straight - through connecting pipe is connected to the adjusting nut seat;

[0006] A sealing - ring enclosing frame is arranged at the top end of the plugging base. An annular inflatable sealing ring is arranged on the outer circle of the sealing - ring enclosing frame. A sealing cover plate connected to the inflatable sealing ring is arranged at the top end of the sealing - ring enclosing frame. Vent holes are arranged on the surface of the straight - through connecting pipe. The vent holes are located between the sealing cover plate and the inflatable sealing ring and are communicated with the inflatable sealing ring.

[0007] In the above-mentioned novel long-life sealing head, a hollow operating rod is provided at the top of the adjusting nut seat, a hollow operating grip is provided at one end of the hollow operating rod, and a pressing airbag is provided at the top of the hollow operating grip.

[0008] In the above-mentioned novel long-life sealing head, a plugging chuck is provided between the hollow operating rod and the hollow operating grip.

[0009] In the above-mentioned novel long-life sealing head, the diameter error values of the plugging base, the front sealing ring, and the sealing ring enclosure frame are all less than one percent of the diameter of the plugging base.

[0010] In the above-mentioned novel long-life sealing head, a front rubber stopper is provided at the bottom of the front sealing ring.

[0011] In the above-mentioned novel long-life sealing head, the clearance value when the inflatable sealing ring inflates and bulges is greater than three percent and less than five percent of the diameter of the plugging base.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For the novel long-life sealing head of the present utility model, by passing the bottom of the straight-through connecting pipe through the plugging base and setting a solid threaded column, and setting a threaded connection sleeve at the center of the front sealing ring, the straight-through connecting pipe is threadedly connected to the threaded connection sleeve of the front sealing ring through the solid threaded column, so that the structures such as the plugging base, the sealing ring enclosure frame, and the inflatable sealing ring have good connection strength after installation, will not loosen easily, ensure the sealing effect of the connection, and at the same time avoid the phenomenon of reduced sealing performance caused by the loosening of the structure; by setting an annular inflatable sealing ring on the outer ring of the sealing ring enclosure frame, the pressing airbag can inflate the inflatable sealing ring, making the inflatable sealing ring bulge, increasing the contact force with the connecting pipe fitting, and at the same time cooperating with the plugging base and the front rubber stopper, having a multi-level three-dimensional sealing effect and improving the sealing performance. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the novel long-life sealing head of the present utility model.

[0015] Figure 2 It is a structure schematic diagram of the straight-through connecting pipe of the novel long-life sealing head of the present utility model.

[0016] Figure 3 It is a structure schematic diagram of the plugging base of the novel long-life sealing head of the present utility model.

[0017] In the figure: 1. Plugging base; 2. Front sealing ring; 3. Adjusting nut seat; 4. Sealing ring enclosure frame; 5. Sealing cover plate; 6. Inflatable sealing ring; 7. Threaded connection sleeve; 8. Front rubber baffle; 9. Hollow operating rod; 10. Straight-through connection pipe; 11. Hollow operating grip; 12. Plugging chuck; 13. Pressing airbag; 14. Solid threaded column; 15. Vent hole; 16. Puncture rubber plug. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-3 , the present invention provides a technical solution for a new long-life sealing head:

[0020] Embodiment 1: The sealing head assembly includes a plugging base 1, a front sealing ring 2 and an adjusting nut seat 3. A puncture rubber plug 16 is arranged in the middle of the plugging base 1. A straight-through connection pipe 10 is puncture-mounted inside the puncture rubber plug 16. The bottom of the straight-through connection pipe 10 passes through the plugging base 1 and is provided with a solid threaded column 14. A threaded connection sleeve 7 is arranged at the center of the front sealing ring 2. The straight-through connection pipe 10 is threadedly connected to the threaded connection sleeve 7 of the front sealing ring 2 through the solid threaded column 14. The top of the straight-through connection pipe 10 is connected to the adjusting nut seat 3; a front rubber baffle 8 is arranged at the bottom end of the front sealing ring 2.

[0021] On the above basis, in order to ensure the smooth installation of the head assembly, the diameter error values of the plugging base 1, the front sealing ring 2 and the sealing ring enclosure frame 4 are all less than one percent of the diameter of the plugging base 1.

[0022] A sealing ring enclosure frame 4 is arranged at the top end of the plugging base 1. An annular inflatable sealing ring 6 is arranged at the outer circle of the sealing ring enclosure frame 4. A sealing cover plate 5 connected to the inflatable sealing ring 6 is arranged at the top end of the sealing ring enclosure frame 4. Vent holes 15 are arranged on the surface of the straight-through connection pipe 10. The vent holes 15 are located between the sealing cover plate 5 and the inflatable sealing ring 6 and are communicated with the inflatable sealing ring 6.

[0023] In this implementation scheme, as Figure 1As shown in FIGS. 2 and 3, in order to inflate the inflatable sealing ring 6 by pressing the air bag 13 so that the inflatable sealing ring 6 bulges and increases the contact force with the connecting component, a plugging chuck 12 is provided to plug between the hollow operating rod 9 and the hollow operating grip 11 to prevent the inflated inflatable sealing ring 6 from leaking air. The top end of the adjusting nut seat 3 is provided with a hollow operating rod 9, one end of the hollow operating rod 9 is provided with a hollow operating grip 11, and the top end of the hollow operating grip 11 is provided with a pressing air bag 13; a plugging chuck 12 is provided between the hollow operating rod 9 and the hollow operating grip 11.

[0024] Further, the clearance value when the inflatable sealing ring 6 is inflated and bulges is greater than 3% and less than 5% of the diameter of the plugging base 1.

[0025] Working principle: The head of the present utility model is composed of main structures such as a plugging base 1, a front sealing ring 2, an adjusting nut seat 3, a sealing ring enclosure frame 4, an inflatable sealing ring 6, and a front rubber baffle 8. The bottom of the straight-through connecting pipe 10 passes through the puncture rubber plug 16 of the plugging base 1 and is connected to the threaded connecting sleeve 7 of the front sealing ring 2 through a solid threaded column 14. The front rubber baffle 8 is arranged at the bottom end of the front sealing ring 2. The front sealing ring 2 is installed inside the pipe fitting. The plugging base 1, the sealing ring enclosure frame 4, and the inflatable sealing ring 6 are installed together inside the pipe fitting. By using the hollow operating grip 11 of the adjusting nut seat 3 to screw the solid threaded column 14 into the inside of the threaded connecting sleeve 7, the installation firmness is improved to prevent the loosening of the head during pressure change operation.

[0026] By pressing the air bag 13 to inflate the inflatable sealing ring 6, the inflatable sealing ring 6 bulges, increasing the contact force with the inside of the pipe fitting. At the same time, a plugging chuck 12 is provided to plug between the hollow operating rod 9 and the hollow operating grip 11 to prevent the inflated inflatable sealing ring 6 from leaking air. The inflatable sealing ring 6 cooperates with the plugging base 1 and the front rubber baffle 8 to have a multi-level three-dimensional sealing effect and improve the sealing performance.

[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are only examples to illustrate the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A novel long-life sealing head, comprising a sealing base (1), a front sealing ring (2) and an adjusting nut seat (3), characterized in that: A puncture plug (16) is provided in the middle of the blocking base (1), a straight connection tube (10) is installed in the interior of the puncture plug (16), the bottom of the straight connection tube (10) passes through the blocking base (1) and is provided with a solid threaded column (14), a threaded connection sleeve (7) is provided at the center of the front sealing ring (2), the straight connection tube (10) is threadedly connected to the threaded connection sleeve (7) of the front sealing ring (2) through the solid threaded column (14), and the top of the straight connection tube (10) is connected to the adjusting nut seat (3); A sealing ring enclosure frame (4) is provided at the top of the sealing base (1), an annular inflatable sealing ring (6) is provided at the outer ring of the sealing ring enclosure frame (4), a sealing cover plate (5) connected to the inflatable sealing ring (6) is provided at the top of the sealing ring enclosure frame (4), and a vent hole (15) is provided on the surface of the straight connecting pipe (10), and the vent hole (15) is located between the sealing cover plate (5) and the inflatable sealing ring (6) and is connected to the inflatable sealing ring (6).

2. The novel long-life sealing head according to claim 1 is characterized in that: A hollow operating rod (9) is arranged at the top end of the adjusting nut seat (3), a hollow operating handle (11) is arranged at one end of the hollow operating rod (9), and a pressing airbag (13) is arranged at the top end of the hollow operating handle (11).

3. The new long-life sealing head according to claim 2 is characterized in that: A sealing chuck (12) is provided between the hollow operating rod (9) and the hollow operating handle (11).

4. The new long-life sealing head according to claim 1 is characterized in that: The diameter errors of the sealing base (1), the front sealing ring (2), and the sealing ring enclosure frame (4) are all less than one percent of the diameter of the sealing base (1).

5. The novel long-life sealing head according to claim 1 is characterized in that: A front rubber baffle (8) is provided at the bottom end of the front sealing ring (2).

6. The novel long-life sealing head according to claim 1 is characterized in that: The gap value when the inflatable sealing ring (6) is inflated is greater than 3 percent of the diameter of the sealing base (1) and less than 5 percent of the diameter of the sealing base (1).

Images