Pressure reducing valve for gas steel cylinder
By setting a connecting component and a docking component on the pressure reducing valve for the gas cylinder and utilizing the design of the sleeve and the limit block, the problem of easy damage to the threaded connection is solved, and a more stable and airtight connection effect is achieved.
Patent Information
- Application Number
- CN202421919059.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The threaded connection method of the existing pressure reducing valve for gas cylinders is easily damaged, resulting in unstable connection and poor air tightness.
The design of connecting components and docking components is adopted, and the traditional threaded connection is replaced by the cooperation of the sleeve and the limit block. The engagement of the scale ring and the elastic opening of the bending part are used to achieve a tight connection.
It avoids thread damage, enhances the stability and air tightness of the connection, and is easy to operate.
Smart Images
Figure CN223331515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas equipment, in particular to a pressure reducing valve for a gas cylinder. Background Art
[0002] Gas cylinders are an important source of gas in the kitchen and are widely used in large household kitchens and restaurant kitchens. A pressure reducing valve must be installed on the connecting pipe between the gas cylinder and the gas-using equipment to reduce the pressure of the gas flowing out of the cylinder and ensure gas safety.
[0003] The pressure reducing valve needs to be connected to the outlet pipe near the cylinder, and the other port of the pressure reducing valve is connected to the soft air pipe. The existing pressure reducing valve is connected to the outlet pipe of the cylinder by a threaded connection. After the gas in the cylinder is used up, the cylinder needs to be replaced. The pressure reducing valve is unscrewed and a new cylinder is brought in to connect it.
[0004] However, when using a threaded connection, the pressure reducing valve needs to be unscrewed more frequently due to the need to replace the cylinder. Frequent relative sliding occurs between the threads, which can easily cause the threads on the pressure reducing valve to break, slip, or be damaged, thereby making the connection between the pressure reducing valve and the cylinder unstable and causing poor air tightness.
[0005] For this reason, a pressure reducing valve for a gas cylinder is proposed. Utility Model Content
[0006] The purpose of the utility model is to provide a pressure reducing valve for a gas cylinder, by arranging a connecting assembly at one end of an intake pipe, arranging a docking assembly cooperating with the connecting assembly at one end of the connecting pipe, and utilizing the connecting assembly and the docking assembly to dock the intake pipe on the valve body with the connecting pipe on the cylinder, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above objectives, the present invention provides the following technical solutions:
[0008] A pressure reducing valve for a gas cylinder comprises a valve body, a connecting pipe, an air inlet pipe, and an air outlet pipe; the connecting pipe is fixedly connected to the cylinder, the air inlet pipe and the air outlet pipe are respectively connected to the two ends of the valve body, the air inlet pipe is docked with the connecting pipe, a flow meter is provided on the air inlet pipe, a connecting assembly is provided at one end of the air inlet pipe, and a docking assembly corresponding to the connecting assembly is provided at one end of the connecting pipe.
[0009] Preferably, the connecting assembly includes: a sleeve and a connecting tube, wherein the connecting tube is fixedly connected to the air inlet pipe and communicates with each other, the sleeve is slidably mounted on the outer wall of the connecting tube, and one end of the sleeve is provided with a limit block on the side wall, and the limit block is semicircular;
[0010] The docking assembly includes a ruler ring 1 and a limit plate; the limit plate is fixedly connected to the outer wall of the connecting tube, the ruler ring 1 is arranged on the outer wall of the connecting tube, and a limit groove is provided on the outer wall of the limit plate, and the limit groove is also set to be semicircular.
[0011] Preferably, there are multiple ruler rings 1, which are arranged at intervals. One end of the connecting tube is provided with two symmetrical bending parts, and the inner wall of each bending part is provided with multiple ruler rings 2 that cooperate with ruler ring 1 at intervals.
[0012] Preferably, an annular stopper is further provided on the inner wall of the sleeve.
[0013] Preferably, the heights of the plurality of ruler rings 2 are different, and the closer the ruler ring 2 is to the stop block, the smaller its height is, and vice versa.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. A connecting assembly is provided at one end of the air intake pipe, and a docking assembly cooperating with the connecting assembly is provided at one end of the connecting pipe. The air intake pipe on the valve body is docked with the connecting pipe on the cylinder by using the connecting assembly and the docking assembly, which replaces the threaded connection method and avoids thread damage, slippage and other damages after multiple disassembly.
[0016] 2. Multiple ruler rings 1 and 2 are arranged to mesh with each other, and a sleeve is used to apply pressure to the two bent parts to make the meshing of ruler ring 1 and ruler ring 2 tighter, and the connection between the bent part and the connecting pipe tighter. In addition, the multiple meshing ruler rings 1 and 2 can enhance the airtightness.
[0017] 3. A limit block is set on the sleeve, and the limit block is semicircular. A limit groove is set on the limit plate, and the limit groove is also set to be semicircular. After the connecting tube is connected to the connecting pipe, the manual operation only needs to push the sleeve toward the direction of the limit plate, and then rotate the sleeve to make the limit block fit into the limit groove. It is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0019] Figure 2 This is a cross-sectional view of the connection structure of the present utility model;
[0020] Figure 3 This is a structural diagram of the connecting tube of the utility model;
[0021] Figure 4 This is a structural diagram of the limiting plate of the utility model.
[0022] In the figure: 1. Valve body; 2. Connecting pipe; 3. Air outlet pipe; 4. Air inlet pipe; 5. Casing; 6. Flowmeter; 7. Connecting tube; 8. Ruler ring 1; 9. Bending part; 10. Ruler ring 2; 11. Stop block; 12. Limit plate; 13. Limit block; 14. Limit groove. DETAILED DESCRIPTION
[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] See also Figures 1 to 4 The utility model provides a pressure reducing valve for gas cylinders, and the technical solution is as follows:
[0025] A pressure reducing valve for a gas cylinder comprises a valve body 1, a connecting pipe 2, an air inlet pipe 4, and an air outlet pipe 3; the connecting pipe 2 is fixedly connected to the cylinder, the air inlet pipe 4 and the air outlet pipe 3 are respectively connected to the two ends of the valve body 1, the air inlet pipe 4 is docked with the connecting pipe 2, a flow meter 6 is provided on the air inlet pipe 4, one end of the air inlet pipe 4 is provided with a connecting assembly, and one end of the connecting pipe 2 is provided with a docking assembly corresponding to the connecting assembly.
[0026] The valve body 1 is provided with an air pressure control mechanism, which is a prior art and will not be described here. The connecting pipe 2 is integrally connected to the cylinder.
[0027] When docking, the connection operation can be completed by connecting the connecting component on the intake pipe 4 with the docking component on the connecting pipe 2. There is no need to use a threaded connection to dock, which can avoid the problem of thread damage.
[0028] like Figure 1 As shown, the connecting assembly includes: a sleeve 5 and a connecting tube 7. The connecting tube 7 is fixedly connected to the air inlet pipe 4 and communicates with each other. The sleeve 5 is slidably mounted on the outer wall of the connecting tube 7. One end of the sleeve 5 is provided with a limit block 13 on the side wall. The limit block 13 is semicircular.
[0029] like Figure 2 Shown and Figure 3As shown, the docking assembly includes a ruler ring 18 and a stop plate 12. The stop plate 12 is fixedly connected to the outer wall of the connecting tube 2. The ruler ring 18 is disposed on the outer wall of the connecting tube 2. The outer wall of the stop plate 12 is provided with a stop groove 14, which is also semicircular. During docking, the intake pipe 4 is inserted into the connecting tube 2, so that one end of the connecting tube 2 is located within the connecting tube 7. The outer wall of the ruler ring 18 contacts the inner wall of the connecting tube 7. The sleeve 5 is manually pushed and slid toward the connecting tube 2 until the stop block 13 at one end of the sleeve 5 contacts the side wall of the stop plate 12. The stop block 13 is then rotated so that it inserts into the stop groove 14, completing the docking operation.
[0030] like Figure 2 As shown, the heights of the plurality of ruler rings 10 are different. The closer the ruler ring 10 is to the stop block 11, the smaller its height is, and vice versa. This arrangement ensures that no operational interference occurs when the bending portion 9 is docked with the ruler ring 1 8.
[0031] There are multiple ruler rings 8, which are arranged at intervals. One end of the connecting tube 7 is provided with two symmetrical bending parts 9, and the inner wall of each bending part 9 is provided with multiple ruler rings 10 that cooperate with the ruler ring 1 8 at intervals.
[0032] The bent portion 9 is made of elastic steel. During docking, the two bent portions 9 are stretched outward and then placed onto the connecting tube 2, so that each second scale ring 10 is inserted between two adjacent first scale rings 8, forming a mutually interlocking arrangement. At this point, when the sleeve 5 is moved toward the stop plate 12, the sleeve 5 continuously applies pressure to the bent portion 9, tightening the contact between the first scale ring 8 and the second scale ring 10, thereby enhancing the seal and making the connection more secure. An annular stopper 11 is also provided on the inner wall of the sleeve 5. After docking, the stopper 11 contacts the sidewall of the first scale ring 8, forming the first part to prevent gas from flowing outward.
[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pressure reducing valve for a gas cylinder, characterized by: The invention comprises a valve body (1), a connecting pipe (2), an air inlet pipe (4), and an air outlet pipe (3); the connecting pipe (2) is fixedly connected to the cylinder, the air inlet pipe (4) and the air outlet pipe (3) are respectively connected to the two ends of the valve body (1), the air inlet pipe (4) is butt-jointed with the connecting pipe (2), a flow meter is provided on the air inlet pipe (4), one end of the air inlet pipe (4) is provided with a connecting assembly, and one end of the connecting pipe (2) is provided with a butt-jointed assembly corresponding to the connecting assembly.
2. A pressure reducing valve for a gas cylinder according to claim 1, characterized in that: The connecting assembly comprises: a sleeve (5) and a connecting cylinder (7); the connecting cylinder (7) and the air inlet pipe (4) are fixedly connected and communicate with each other; the sleeve (5) is slidably mounted on the outer wall of the connecting cylinder (7); one end of the sleeve (5) is provided with a limit block (13) on the side wall; the limit block (13) is semicircular; The docking assembly comprises a ruler ring (8) and a limiting plate (12); the limiting plate (12) is fixedly connected to the outer wall of the connecting tube (2); the ruler ring (8) is arranged on the outer wall of the connecting tube (2); a limiting groove (14) is provided on the outer wall of the limiting plate (12); and the limiting groove (14) is also arranged in a semicircular shape.
3. The pressure reducing valve for a gas cylinder according to claim 2, characterized in that: There are multiple ruler rings (8) and the ruler rings (8) are arranged at intervals. One end of the connecting tube (7) is provided with two symmetrical bending parts (9). The inner wall of each bending part (9) is provided with multiple ruler rings (10) that cooperate with the ruler ring (8).
4. A pressure reducing valve for a gas cylinder according to claim 3, characterized in that: An annular stopper (11) is also provided on the inner wall of the sleeve (5).
5. The pressure reducing valve for a gas cylinder according to claim 4, characterized in that: The heights of the plurality of ruler rings 2 (10) are different. The closer the ruler ring 2 (10) is to the stop block (11), the smaller its height is, and vice versa.