Carbon dioxide valve

Abstract

The utility model discloses a carbon dioxide valve which comprises a valve body, a valve rod extending up and down is installed at the upper end of the valve body, a valve is fixedly connected to the lower end of the valve rod, a spring seat is installed at the lower end of the valve body, a spring extending up and down is installed between the valve and the spring seat, an air outlet end is arranged at the left end of the valve body, and a pressing handle and a lifting handle are connected to the upper end of the valve body. The clamping sleeve is through in the left-right direction and is fixedly connected to the left end of the air outlet end, the nozzle connector is inserted into the clamping sleeve and is in left-right sliding fit with the clamping sleeve, the clamping sleeve is composed of a plurality of clamping pieces evenly distributed on the left end face of the air outlet end, and the nut is screwed outside the clamping sleeve so that the clamping pieces can clamp the nozzle connector. The nozzle connector penetrates through the nut in a left-right penetrating mode. By adopting the sliding fit design of the jacket and the nozzle joint and the fastening effect of the nut, a user can conveniently adjust the extension length of the nozzle joint according to actual requirements, and the design greatly improves the adaptability and flexibility of the fire extinguisher in different environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguisher valve technical field, concretely is a kind of carbon dioxide valve. BACKGROUND

[0002] In the field of fire-fighting equipment, fire extinguishers are widely used in various fire scenes as important fire-fighting tools. Among them, carbon dioxide fire extinguishers become the first choice in many occasions due to their high efficiency and environmental protection. One of the core components of carbon dioxide fire extinguishers is its valve system, especially the connection between the valve gas outlet and the nozzle connector.

[0003] The traditional carbon dioxide fire extinguisher valve gas outlet generally uses a threaded connection to install the nozzle connector. This connection method has certain convenience and reliability in design and manufacturing. The tight fit of the threads ensures the stable transmission of the gas under high pressure, preventing gas leakage and ensuring the fire extinguishing effect of the fire extinguisher. However, this traditional connection method also has certain limitations in actual use. Specifically, once the nozzle connector is fixed on the valve gas outlet through threaded connection, its length cannot be adjusted. This fixed length design makes it difficult for the fire extinguisher to meet the actual needs in different use environments. For example, in some narrow or complex environments, the length of the nozzle connector may become an obstacle to operation, affecting the flexibility and effectiveness of the fire extinguisher.

[0004] In addition, with the continuous progress of fire-fighting technology and the diversification of fire-fighting needs, higher requirements are placed on the flexibility and adaptability of fire extinguishers. The traditional fixed-length nozzle connector cannot meet these new needs. Therefore, developing a nozzle connector that can be flexibly adjusted in length to adapt to different use environments has become an important direction for the current upgrade of fire extinguisher technology. INVENTION CONTENTS

[0005] In view of the above-mentioned defects of the prior art, the purpose of the present utility model is to provide a carbon dioxide valve.

[0006] The technical solution of the present utility model is as follows: a carbon dioxide valve, which comprises a valve body, an upper and lower extending valve stem installed on the upper end of the valve body, a valve gate fixedly connected to the lower end of the valve stem, a spring seat installed on the lower end of the valve body, an upper and lower extending spring installed between the valve gate and the spring seat, a safety assembly installed on the right end of the valve body, a gas outlet end on the left end of the valve body, a pressure handle and a lifting handle connected to the upper end of the valve body; it further comprises a clamp sleeve, a nut and a nozzle connector, the clamp sleeve is fixedly connected to the left end of the gas outlet end and penetrates left and right, the nozzle connector is inserted into the clamp sleeve and slidably connected with the clamp sleeve, the clamp sleeve is composed of multiple clamping pieces uniformly distributed on the left end face of the gas outlet end, the nut is screwed on the outside of the clamp sleeve to clamp the nozzle connector with the clamping pieces, and the nut penetrates left and right for the nozzle connector to pass through.

[0007] Further, gaps are left between the adjacent clamping pieces, the clamping sleeve has a insertion hole for inserting the nozzle connector, and the air outlet end has an air outlet communicating with the nozzle connector.

[0008] Further, the outer wall of the clamping sleeve has external threads matched with the nut.

[0009] Further, the outer wall of the right end of the nozzle connector has a plurality of annular grooves, and each groove has a sealing ring clamped therein, and the outer wall of the sealing ring is in contact with the inner wall of the clamping sleeve or the inner wall of the air outlet.

[0010] Further, the outer wall of the left end of the nozzle connector has a stop ring protruding therefrom.

[0011] The carbon dioxide valve has the advantages that the sliding fit design of the clamping sleeve and the nozzle connector and the fastening effect of the nut enable the user to conveniently adjust the extension length of the nozzle connector according to actual needs, and the design greatly improves the adaptability and flexibility of the fire extinguisher in different environments. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a use state schematic view of the utility model;

[0013] Figure 2 is another use state schematic view of the utility model;

[0014] Figure 3 is a partial exploded schematic view of the utility model;

[0015] Figure 4 is a structure schematic view of the nozzle connector of the utility model.

[0016] As shown in the figure: 1 - valve body, 101 - air outlet end, 1011 - air outlet, 2 - valve rod, 3 - valve, 4 - spring seat, 5 - spring, 6 - safety assembly, 7 - press handle, 8 - handle, 9 - clamping sleeve, 901 - clamping piece, 902 - insertion hole, 10 - nut, 11 - nozzle connector, 1101 - groove, 1102 - stop ring, 12 - sealing ring. DETAILED DESCRIPTION

[0017] In order to more directly and completely understand the technical scheme of the utility model, the following non-restrictive feature descriptions are given in combination with the drawings of the utility model:

[0018] As shown in the figure: Figure 1 — Figure 4 As shown in the figure: Figure 1 — Figure 4As shown, a carbon dioxide valve includes a valve body 1, a valve stem 2 extending vertically mounted on the upper end of the valve body 1, a valve 3 fixedly connected to the lower end of the valve stem 2, a spring seat 4 mounted on the lower end of the valve body 1, a vertically extending spring 5 installed between the valve 3 and the spring seat 4, a safety assembly 6 mounted on the right end of the valve body 1, and an outlet end 101 at the left end of the valve body 1. A pressure handle 7 and a lifting handle 8 are connected to the upper end of the valve body 1. The carbon dioxide valve also includes a jacket 9, a nut 10, and a nozzle connector 11. The jacket 9 is laterally connected and fixedly connected to the left end of the outlet end 101. The nozzle connector 11 is inserted into the jacket 9 and slides laterally with the jacket 9. The jacket 9 is composed of multiple clamping pieces 901 evenly distributed on the left end face of the outlet end 101. The nut 9 is screwed onto the jacket 9, causing the clamping pieces 901 to clamp the nozzle connector 11. The nut 10 is laterally connected, allowing the nozzle connector 11 to pass through. The jacket 9 is welded to the left end of the outlet end 101.

[0019] A gap is left between adjacent clamping plates 901. The sleeve 9 has an insertion hole 902 for inserting the nozzle connector 11. The air outlet 101 has an air outlet 1011, which communicates with the nozzle connector 11. When the nut 9 is screwed onto the sleeve 9, the nut 9 will cause the clamping plate 901 to deform to a certain extent, so that the clamping plate 901 can make tight contact with the nozzle connector 11.

[0020] The outer wall of the jacket 9 has an external thread (not shown in the figure) that mates with the nut 10, making it easy to connect the nut 10.

[0021] like Figure 4 As shown, in order to improve the sealing effect, the outer wall of the right end of the nozzle connector 11 has a plurality of annular grooves 1101, and a sealing ring 12 is inserted into each groove 1101. The outer wall of the sealing ring 12 contacts the inner wall of the jacket 9 or the inner wall of the air outlet 1011.

[0022] like Figure 4 As shown, a retaining ring 1102 protrudes from the outer wall of the left end of the nozzle connector 11, and the left end face of the sleeve 9 is used to block the retaining ring 1102. When the right end face of the retaining ring 1102 touches the left end face of the sleeve 9, the extended length of the nozzle connector 11 is at its shortest.

[0023] The carbon dioxide valve provided by this utility model adopts a sliding fit design between the jacket 9 and the nozzle connector 11, and the tightening effect of the nut 10. Users can easily adjust the extension length of the nozzle connector 11 according to actual needs. This design greatly improves the adaptability and flexibility of the fire extinguisher in different environments. When it is necessary to adjust the length of the nozzle connector 11, loosen the nut 10 to slide the nozzle connector 11 left or right, and then tighten the nut 10 after adjusting the position.

[0024] Of course, the above only is the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any simple modification and equivalent structural change according to the content of the present application specification and drawings should be reasonably included in the patent protection scope of the present application.

Claims

1. A carbon dioxide valve, comprising a valve body, an upper and lower extending valve rod installed on the upper end of the valve body, a valve core fixedly connected to the lower end of the valve rod, a spring seat installed on the lower end of the valve body, an upper and lower extending spring installed between the valve core and the spring seat, a safety assembly installed on the right end of the valve body, a gas outlet end on the left end of the valve body, and a pressure handle and a lifting handle connected to the upper end of the valve body, characterized in that: It also includes a jacket, a nut and a nozzle connector, the jacket is through and fixedly connected on the left end of the air outlet end, the nozzle connector is inserted into the jacket and is in sliding fit with the jacket, the jacket is composed of multiple clamping pieces which are uniformly distributed on the left end surface of the air outlet end, the nut is screwed on the outside of the jacket so that the clamping pieces clamp the nozzle connector, and the nut is through for the nozzle connector to pass through.

2. A carbon dioxide valve according to claim 1, characterized in that: The gap is left between the adjacent clamping pieces, the jacket has a insertion hole for the nozzle connector to be inserted, and the air outlet end has an air outlet which is in communication with the nozzle connector.

3. The carbon dioxide valve of claim 1, wherein: The outer wall of the jacket has external threads which are in fit with the nut.

4. The carbon dioxide valve of claim 1, wherein: The outer wall of the right end of the nozzle connector has multiple annular grooves, a sealing ring is clamped in each groove, and the outer wall of the sealing ring is in contact with the inner wall of the jacket or the inner wall of the air outlet.

5. The carbon dioxide valve of claim 1, wherein: The outer wall of the left end of the nozzle connector protrudes with a stop ring.

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