Quick insertion type gun valve assembly

Abstract

The utility model relates to the technical field of high-pressure cleaning machines, in particular to a quick insertion type gun valve assembly which comprises a gun valve sleeve with a valve cavity, a pull rod is arranged in the valve cavity, one end of the pull rod extends out of the gun valve sleeve, the other end of the pull rod is arranged in the valve cavity of the gun valve sleeve, and a spring seat is arranged at the end, extending out of the gun valve sleeve, of the pull rod. A spring is arranged between the spring seat and the gun valve sleeve, and a sealing piece used for sealing the valve cavity is arranged at the other end, located in the valve cavity, of the pull rod. The gun valve assembly is high in machining and mounting efficiency and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure cleaners, in particular to a quick-insert gun valve assembly. Background Art

[0002] The gun valve assembly is an important part of a high-pressure cleaner.

[0003] The gun valve assembly of the prior art, such as the utility model patent with the name of a gun valve assembly applied by the applicant on May 25, 2023, mainly relies on a spring and a steel ball to achieve sealing. Therefore, an embedding groove needs to be provided in the gun valve sleeve for the lower end of the spring to be embedded. This structure not only has more overall processes, lower overall processing and installation efficiency, but also has a higher cost of overall required parts. Summary of the Utility Model

[0004] The technical solution to be solved by the utility model is to provide a quick-insert gun valve assembly with higher processing and installation efficiency and lower cost.

[0005] The technical solution adopted by the utility model is: a quick-insert gun valve assembly, including a gun valve sleeve with a valve cavity, a pull rod is arranged in the valve cavity, one end of the pull rod extends out of the gun valve sleeve, the other end of the pull rod is arranged in the valve cavity of the gun valve sleeve, and a spring seat is arranged at the end of the pull rod extending out of the gun valve sleeve, and a spring is arranged between the spring seat and the gun valve sleeve, and a sealing member for sealing the valve cavity is arranged at the other end of the pull rod located in the valve cavity.

[0006] Preferably, the valve cavity is divided into an upper chamber and a lower chamber, a sealing surface is formed between the upper chamber and the lower chamber, and the sealing member is matched with the sealing surface to isolate and seal the upper chamber and the lower chamber.

[0007] Preferably, the sealing member includes an annular conical surface, and the annular conical surface is matched with the sealing surface.

[0008] Preferably, the sealing member is integrally formed with the other end of the pull rod.

[0009] Preferably, an annular groove is arranged at the end of the pull rod extending out of the gun valve sleeve, and a plurality of elastic pieces for embedding into the annular groove are arranged on the spring seat.

[0010] Preferably, an annular block for one end of the spring to abut against is further arranged on the outer circumference of the spring seat.

[0011] Preferably, a protrusion is formed at the part of the gun valve sleeve where one end of the pull rod extends out, and the other end of the spring is sleeved on the protrusion.

[0012] Compared with the prior art by adopting the above structure, the utility model has the following advantages: The spring is arranged outside the gun valve sleeve, and the spring seat is used to resist the spring, so that there is no need to process an embedding groove inside the gun valve sleeve. In this way, the processing is more convenient, the installation process is less, the overall processing efficiency is higher, the cost of the overall required parts is lower, and the required spring length is also greatly reduced, which can also reduce a part of the cost.

[0013] The upper chamber and the lower chamber are sealed and isolated by the seal, and the overall sealing effect is good.

[0014] The overall sealing effect is good through the matching of the annular conical surface and the sealing surface for sealing.

[0015] The seal and the pull rod are integrally formed, which is convenient for processing and installation.

[0016] The spring seat is fixed on the pull rod by embedding multiple elastic pieces into the annular groove, and the installation is relatively convenient in this way.

[0017] An annular stop block is provided, so that one end of the spring can extend into the annular stop block to resist the annular stop block.

[0018] A protrusion is provided on the gun valve sleeve, so that the other end of the spring can be sleeved on the protrusion, and the spring is fixed more conveniently. Description of the Drawings

[0019] Figure 1 It is a cross-sectional view of the quick-insert gun valve assembly of the utility model.

[0020] Figure 2 It is a schematic structural diagram of the pull rod in the quick-insert gun valve assembly of the utility model.

[0021] Figure 3 It is a schematic structural diagram of the spring seat in the quick-insert gun valve assembly of the utility model.

[0022] As shown in the figure: 1. Gun valve sleeve; 2. Upper chamber; 3. Lower chamber; 4. Pull rod; 5. Spring seat; 6. Spring; 7. Seal; 8. Sealing surface; 9. Annular conical surface; 10. Annular groove; 11. Elastic piece; 12. Annular stop block; 13. Protrusion. Detailed Embodiment

[0023] The embodiments of the utility model are described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model and should not be construed as a limitation of the utility model.

[0024] Embodiment 1:

[0025] A quick-insert gun valve assembly, as Figure 1 shown, comprising a gun valve sleeve 1, a pull rod 4, a spring 6 and a spring seat 5, wherein:

[0026] The gun valve sleeve 1 is internally provided with a valve cavity, and the valve cavity is divided into an upper chamber 2 and a lower chamber 3. A sealing surface 8 is provided between the upper chamber 2 and the lower chamber 3. A part of the pull rod 4 is arranged in the valve cavity of the gun valve sleeve 1. The upper chamber 2 is connected to the outside of the gun valve sleeve 1 through a communication hole. The pull rod 4 can extend out from the communication hole, and a protrusion 13 is formed at the position where the upper part of the gun valve sleeve 1 supplies the pull rod 4 to extend out;

[0027] The pull rod 4 is provided with an annular groove 10 at the upper end for connecting and fixing the spring seat 5. A sealing member 7 is provided at the lower end. An annular conical surface 9 is provided on the sealing member 7, which can be matched and sealed with the sealing surface 8. The upper end of the pull rod 4 extends out of the gun valve sleeve 1, and the lower end of the pull rod 4 is located in the lower chamber 3. A step is also provided on the pull rod 4 to prevent the pull rod 4 from completely extending out of the communication hole on the gun valve sleeve, and a sealing ring is provided on the step to play a sealing role;

[0028] The spring seat 5 includes a fixing ring. A plurality of elastic pieces 11 are provided on the fixing ring, and the plurality of elastic pieces 11 can be embedded into the annular groove 10 at the upper end of the pull rod 4 to fix the spring seat 5 at the upper end of the pull rod 4. A through hole is formed between the plurality of elastic pieces 11, and the upper end of the pull rod 4 can pass through the through hole. An annular stopper 12 is also provided on the outer circumference of the fixing ring;

[0029] The spring 6 is sleeved on the protrusion 13 at the lower end and abuts against the gun valve sleeve 1, and the upper end abuts against the spring seat 5;

[0030] The working principle of this embodiment is: Move the spring 6 previously arranged in the valve cavity to the outside of the gun valve sleeve 1, so that there is no need to process an embedding groove inside the gun valve sleeve 1, and the function is still the same. When the spring 6 works normally, it can push the spring seat 5 upwards, and then equivalently push the pull rod 4 upwards, so that the annular conical surface 9 of the sealing member 7 at the lower end of the pull rod 4 contacts and seals with the sealing surface 8.

[0031] Embodiment Two:

[0032] The difference from Embodiment One is that in Embodiment Two, the sealing member 7 and the pull rod 4 are integrally formed, which is more convenient for processing, and only one component needs to be installed during installation, and the installation efficiency is relatively high.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0034] To those skilled in the art, various changes and modifications will undoubtedly be obvious after reading the above description. Therefore, the appended claims should be regarded as covering all changes and modifications that embrace the true spirit and scope of the present utility model. Any and all equivalent scopes and contents within the scope of the claims should be considered to still fall within the spirit and scope of the present utility model.

Claims

1. A quick-insert gun valve assembly, including a gun valve sleeve (1) with a valve cavity, wherein a pull rod (4) is arranged in the valve cavity, and is characterized in that: One end of the pull rod (4) extends out of the gun valve sleeve (1), the other end of the pull rod (4) is arranged in the valve cavity of the gun valve sleeve (1), a spring seat (5) is arranged at one end of the pull rod (4) extending out of the gun valve sleeve (1), and a spring (6) is arranged between the spring seat (5) and the gun valve sleeve (1), and a seal (7) for sealing the valve cavity is arranged at the other end of the pull rod (4) located in the valve cavity.

2. The quick-insert gun valve assembly according to claim 1, characterized in that: The valve cavity is divided into an upper chamber (2) and a lower chamber (3), a sealing surface (8) is formed between the upper chamber (2) and the lower chamber (3), and the seal (7) is matched with the sealing surface (8) to isolate and seal the upper chamber (2) and the lower chamber (3).

3. The quick-insert gun valve assembly according to claim 2, characterized in that: The seal (7) includes an annular conical surface (9), and the annular conical surface (9) is matched with the sealing surface (8).

4. The quick-insert gun valve assembly according to claim 3, characterized in that: The seal (7) is integrally formed with the other end of the pull rod (4).

5. The quick-insert gun valve assembly according to claim 1, characterized in that: An annular groove (10) is arranged at one end of the pull rod (4) extending out of the gun valve sleeve (1), and a plurality of elastic pieces (11) for being embedded in the annular groove (10) are arranged on the spring seat (5).

6. The quick-insert gun valve assembly according to claim 5, characterized in that: An annular stop block (12) for one end of the spring (6) to abut against is further arranged on the outer circumference of the spring seat (5).

7. The quick-insert gun valve assembly according to claim 6, wherein: A protrusion (13) is formed at the part of the gun valve sleeve (1) where one end of the pull rod (4) extends out, and the other end of the spring (6) is sleeved on the protrusion (13).

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