Spray head sealing structure

Abstract

The utility model provides a nozzle sealing structure, which belongs to the technical field of sealing structures and comprises a nozzle connecting pipe, the top of the nozzle connecting pipe is in threaded connection with an adjusting cover, a movable sleeve is arranged at the bottom of the adjusting cover, a plunger is movably connected in the movable sleeve, a reset spring is arranged outside the plunger, and a limiting top block is arranged at one end of the plunger. The bottom of the spray head connecting pipe is communicated with a limiting pipe in a sealed mode, a connecting base is arranged at the bottom of the limiting pipe, and a water receiving pipe head is connected to the bottom of the connecting base in a threaded mode. The water inlet sealing plug is ejected out of the water inlet sealing plug, the reset spring is compressed, the plunger retracts into the movable sleeve, after water flow becomes smaller, the reset spring rebounds to abut against the limiting ejector block, the water inlet sealing plug abuts against the sealing groove, water source waste is reduced, and after the concave sealing plug and the convex sealing plug are combined, a gap in the connecting position of the connecting base and the water receiving pipe head is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of sealing structure technology, specifically relating to a nozzle sealing structure. Background Technology

[0002] Existing rotary nozzle joint structures suffer from deformation due to prolonged friction from the rotating plunger during operation. Furthermore, the nozzle cannot withstand the corrosive effects of the high-temperature gas flowing into the reactor during spraying, severely impacting its lifespan. While the "Spray Valve Nozzle Sealing Structure" disclosed in application number "CN202122170879.2" is a mature technology, its multi-layered sealing structure prevents the valve body from contacting the high-temperature steam in the reactor, thus extending its lifespan and improving overall production efficiency. However, this equipment still has the following drawbacks: During use, the nozzle pipe connection is typically sealed using gaskets and other components. However, after each water spraying stop, although the water supply can be cut off at the nozzle valve body, some residual water leaks out of the nozzle pipe, failing to promptly shut off the outlet and resulting in water waste. Additionally, the nozzle-pipe connection is typically sealed with a sealing ring, but gaps exist at the connection, leading to large gaps between the sealing rings and easy liquid leakage. Utility Model Content

[0003] The purpose of this utility model is to provide a nozzle sealing structure, which aims to solve the problem that although the nozzle valve body can cut off the water source in the prior art, some residual water in the nozzle pipe will leak out, and the water outlet cannot be cut off in time, resulting in water waste. At the same time, the connection between the nozzle and the pipe is generally sealed by a sealing ring, but there are gaps at the connection, resulting in large gaps between the sealing rings, which makes it easy for liquid to leak.

[0004] To achieve the above objectives, this utility model provides the following technical solution: it includes a nozzle connecting pipe, an adjusting cover is threadedly connected to the top of the nozzle connecting pipe, a movable sleeve is provided at the bottom of the adjusting cover, a plunger is movably connected inside the movable sleeve, a return spring is provided outside the plunger, a limiting block is provided at one end of the plunger, the bottom of the nozzle connecting pipe is sealed and connected to a limiting pipe, a connecting seat is provided at the bottom of the limiting pipe, and a water receiving pipe head is threadedly connected to the bottom of the connecting seat.

[0005] In one embodiment of the nozzle sealing structure of this utility model, a concave sealing plug is provided on the top of the inner wall of the connecting seat, and a convex sealing plug is provided at the end of the water inlet pipe. The convex sealing plug and the concave sealing plug are matched in size.

[0006] In this solution, after the connector and the water inlet pipe are installed, the convex sealing plug is inserted into the concave sealing plug. When the concave sealing plug and the convex sealing plug are combined, the gap at the connection between the connector and the water inlet pipe is reduced, the sealing performance is improved, and water leakage at the connection between the connector and the water inlet pipe is prevented.

[0007] In one embodiment of the nozzle sealing structure of this utility model, the top of the concave sealing plug and the bottom of the convex sealing plug are provided with high-temperature resistant sealing rings.

[0008] In this solution, the high-temperature resistant sealing ring facilitates the separation of the concave and convex sealing plugs from the connection between the connector and the water inlet pipe, making it convenient to replace the concave and convex sealing plugs.

[0009] In one embodiment of the nozzle sealing structure of this utility model, a sealing groove is provided at the top of the inner wall of the limiting tube, and a water inlet sealing plug is provided at the bottom of the limiting top block. The size of the water inlet sealing plug matches the sealing groove, and a concave water inlet groove is provided at the bottom of the inner wall of the limiting tube.

[0010] In this solution, after the water flows into the water limiting pipe, the water pressure is adjusted through the concave water inlet groove to concentrate the water flow. The water flow impacts the water inlet sealing plug in the sealing groove, pushing the water inlet sealing plug out and compressing the return spring. When the water flow decreases, the return spring rebounds and pushes against the limiting block, pressing the water inlet sealing plug against the sealing groove, thus sealing the water source and reducing water waste.

[0011] In one embodiment of the nozzle sealing structure of this utility model, a nozzle mounting pipe is provided on the top side of the adjusting cover, and water outlet grooves are provided on both sides of the top of the adjusting cover.

[0012] In this design, when the sealing groove is opened, water flows out from the outlet groove and into the nozzle mounting pipe.

[0013] In one embodiment of the nozzle sealing structure of this utility model, a stainless steel anti-slip wire washer is provided at the top of the nozzle mounting tube, and anti-slip wedge grooves are distributed on the surface of the stainless steel anti-slip wire washer.

[0014] In this solution, the external nozzle is installed inside the nozzle mounting tube, and the stainless steel anti-slip thread washer is abutted against the nozzle connection. The anti-slip wedge groove prevents the external nozzle from slipping after installation, improves the tightness of the nozzle after installation, and avoids water leakage at the nozzle connection.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The convex sealing plug is inserted into the concave sealing plug. When the concave sealing plug and the convex sealing plug are combined, the gap at the connection between the connector and the water pipe head is reduced, the sealing performance is improved, and water leakage at the connection between the connector and the water pipe head is prevented.

[0017] 2) The water pressure is adjusted by the concave water inlet groove to concentrate the water flow. The water flow impacts the water inlet sealing plug in the sealing groove, pushing the water inlet sealing plug out and compressing the return spring. The plunger retracts into the movable sleeve. When the water flow decreases, the return spring rebounds and presses against the limit block, which presses the water inlet sealing plug against the sealing groove to seal the water source and reduce water waste. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

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

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the connecting seat of this utility model.

[0023] In the diagram: 1. Nozzle connecting pipe; 2. Adjusting cover; 3. Movable sleeve; 4. Plunger; 5. Return spring; 6. Top block; 7. Limiting pipe; 8. Connecting seat; 9. Water inlet pipe head; 10. Concave sealing plug; 11. Convex sealing plug; 12. High temperature resistant sealing ring; 13. Sealing groove; 14. Water inlet sealing plug; 15. Concave water inlet groove; 16. Nozzle mounting pipe; 17. Water outlet groove; 18. Stainless steel anti-slip wire washer; 19. Anti-slip wedge groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3The present invention provides the following technical solution: a nozzle sealing structure, including a nozzle connecting pipe 1, an adjusting cover 2 threadedly connected to the top of the nozzle connecting pipe 1, a movable sleeve 3 at the bottom of the adjusting cover 2, a plunger 4 movably connected inside the movable sleeve 3, a return spring 5 outside the plunger 4, a limiting block 6 at one end of the plunger 4, a sealing connection between the bottom of the nozzle connecting pipe 1 and a limiting pipe 7, a connecting seat 8 at the bottom of the limiting pipe 7, and a water receiving pipe head 9 threadedly connected to the bottom of the connecting seat 8.

[0026] In a specific embodiment of the nozzle sealing structure, please refer to Figure 4 The inner wall of the connector 8 is provided with a concave sealing plug 10, and the end of the water pipe head 9 is provided with a convex sealing plug 11. The convex sealing plug 11 and the concave sealing plug 10 are matched in size.

[0027] Please see Figure 4 When the connector 8 and the water inlet pipe 9 are installed, the convex sealing plug 11 is inserted into the concave sealing plug 10. When the concave sealing plug 10 and the convex sealing plug 11 are combined, the gap at the connection between the connector 8 and the water inlet pipe 9 is reduced, the sealing performance is improved, and water leakage at the connection between the connector 8 and the water inlet pipe 9 is prevented.

[0028] In a specific embodiment of the nozzle sealing structure, please refer to Figure 4 High-temperature resistant sealing rings 12 are provided on the top of the concave sealing plug 10 and the bottom of the convex sealing plug 11.

[0029] Please see Figure 4 The high-temperature resistant sealing ring 12 facilitates the separation of the concave sealing plug 10 and the convex sealing plug 11 from the connection point between the connecting seat 8 and the water inlet pipe head 9, making it convenient to replace the concave sealing plug 10 and the convex sealing plug 11.

[0030] In a specific embodiment of the nozzle sealing structure, please refer to Figure 2 The upper part of the inner wall of the limiting tube 7 is provided with a sealing groove 13, the lower part of the limiting top block 6 is provided with a water inlet sealing plug 14, the size of the water inlet sealing plug 14 matches the sealing groove 13, and the lower part of the inner wall of the limiting tube 7 is provided with a concave water inlet groove 15.

[0031] Please see Figure 2 When water flows into the water limiting pipe 7, the water pressure is adjusted through the concave water inlet groove 15 to concentrate the water flow. The water flow impacts the water inlet sealing plug 14 in the sealing groove 13, pushing the water inlet sealing plug 14 out and compressing the return spring 5. When the water flow decreases, the return spring 5 rebounds and presses against the limiting top block 6, pressing the water inlet sealing plug 14 against the sealing groove 13 to seal the water source and reduce water waste.

[0032] In a specific embodiment of the nozzle sealing structure, please refer to Figure 2 The top side of the regulating cover 2 is provided with a nozzle mounting pipe 16, and water outlet grooves 17 are opened on both sides of the top of the regulating cover 2.

[0033] Please see Figure 2 When the sealing groove 13 is opened, water flows out from the water outlet groove 17 and into the nozzle mounting pipe 16.

[0034] In a specific embodiment of the nozzle sealing structure, please refer to Figure 2 The nozzle mounting tube 16 is equipped with a stainless steel anti-slip wire washer 18 at the top, and the surface of the stainless steel anti-slip wire washer 18 is provided with anti-slip wedge grooves 19.

[0035] Please see Figure 2 The external nozzle is installed into the nozzle mounting tube 16. The stainless steel anti-slip thread washer 18 abuts against the nozzle connection. The anti-slip wedge groove 19 prevents the external nozzle from slipping after installation, improves the tightness of the nozzle after installation, and avoids water leakage at the external nozzle connection.

[0036] The nozzle sealing structure provided by this utility model is used as follows: After the connecting seat 8 and the water inlet pipe 9 are installed, the convex sealing plug 11 is inserted into the concave sealing plug 10. When the concave sealing plug 10 and the convex sealing plug 11 are combined, the gap at the connection between the connecting seat 8 and the water inlet pipe 9 is reduced, improving its sealing performance and preventing water leakage at the connection between the connecting seat 8 and the water inlet pipe 9. After the water flows into the water inlet limiting pipe 7, the water pressure is adjusted and the water flow is concentrated through the concave water inlet groove 15. The water flow impacts the water inlet seal in the sealing groove 13. The inlet sealing plug 14 is pushed out of the inlet sealing plug 14, compressing the return spring 5. When the water flow decreases, the return spring 5 rebounds and presses against the limit block 6, pressing the inlet sealing plug 14 against the sealing groove 13 to seal the water source and reduce water waste. The external nozzle is then installed into the nozzle installation tube 16. The stainless steel anti-slip thread washer 18 is pressed against the nozzle connection. The anti-slip wedge groove 19 prevents the external nozzle from slipping after installation, improving the tightness of the nozzle installation and preventing water leakage at the external nozzle connection.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A nozzle sealing structure, comprising a nozzle connecting pipe (1), characterized in that: The nozzle connecting pipe (1) is threadedly connected to an adjusting cover (2) at the top. The adjusting cover (2) is provided with a movable sleeve (3) at the bottom. A plunger (4) is movably connected inside the movable sleeve (3). A return spring (5) is provided outside the plunger (4). A limiting block (6) is provided at one end of the plunger (4). The nozzle connecting pipe (1) is sealed and connected to a limiting pipe (7) at the bottom. A connecting seat (8) is provided at the bottom of the limiting pipe (7). A water inlet pipe head (9) is threadedly connected to the bottom of the connecting seat (8).

2. The nozzle sealing structure according to claim 1, characterized in that: The top of the inner wall of the connecting seat (8) is provided with a concave sealing plug (10), and the end of the water inlet pipe (9) is provided with a convex sealing plug (11). The convex sealing plug (11) and the concave sealing plug (10) are matched in size.

3. The nozzle sealing structure according to claim 2, characterized in that: The top of the concave sealing plug (10) and the bottom of the convex sealing plug (11) are provided with high-temperature resistant sealing rings (12).

4. The nozzle sealing structure according to claim 3, characterized in that: The upper part of the inner wall of the limiting tube (7) is provided with a sealing groove (13), the lower part of the limiting top block (6) is provided with a water inlet sealing plug (14), the size of the water inlet sealing plug (14) matches the sealing groove (13), and the lower part of the inner wall of the limiting tube (7) is provided with a concave water inlet groove (15).

5. The nozzle sealing structure according to claim 1, characterized in that: The top side of the regulating cover (2) is provided with a nozzle mounting pipe (16), and water outlet grooves (17) are opened on both sides of the top of the regulating cover (2).

6. The nozzle sealing structure according to claim 5, characterized in that: The nozzle mounting tube (16) is provided with a stainless steel anti-slip wire washer (18) at the top end, and anti-slip wedge grooves (19) are distributed on the surface of the stainless steel anti-slip wire washer (18).

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