Novel pressure gauge spring body
By adopting all stainless steel material and argon arc welding welding technology, the problems of dummy welding of the pressure gauge spring body and oxidation of copper material at high temperatures are solved, achieving higher safety and stability of use.
Patent Information
- Application Number
- CN202421261922.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The commercially available pressure gauge spring body is prone to welding at high temperatures, causing separation of the joints from the spring tube, causing leakage or explosion; at the same time, the copper material is easily oxidized in a humid environment, affecting the use function.
Made of all stainless steel, the joints and spring tubes are connected by argon arc welding to ensure the stability and sealing of welding, and increase the firmness between the joints and spring tubes.
It improves the safety of the product in high temperature and humid environments, avoids dummy welding and oxidation problems, and ensures the stability and long life of the product.
Smart Images
Figure CN222825168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pressure gauge equipment, in particular to a novel pressure gauge spring body. Background Art
[0002] At present, the spring bodies of pressure gauges on the market basically use copper joints and copper spring tubes, which are fixed and formed by soldering. When the soldering temperature is slightly high (≥80℃), it is very easy to melt and cause cold soldering, which will cause the copper spring tube and the joint to separate, causing leakage, explosion, etc. In addition, copper is easy to oxidize and rust in a humid environment, affecting the use function of the product itself and causing unnecessary damage to the user. At the same time, if Figure 1 As shown, the supporting parts are prone to bending defects during one-piece molding due to less feed, making subsequent shaping very troublesome. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a new pressure gauge spring body, which is made of all stainless steel. The components are connected by argon arc welding, which ensures the stability and sealing of the welding, makes the welding between the joint and the spring tube more firm, and will not cause cold welding, thereby ensuring the safety of the product during use.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A novel pressure gauge spring body comprises a stainless steel joint and a stainless steel spring tube welded by argon arc welding, wherein a square support block is welded and fixed on the top of the 304 stainless steel spring tube.
[0006] Furthermore, the stainless steel joint is a 430 stainless steel joint with an arc-shaped cross-section, one end of which is welded to the upper side of the stainless steel spring tube, and the other end is vertically welded and fixed with an L-shaped connecting block, which has a through hole.
[0007] Furthermore, the stainless steel spring tube is made of 304 stainless steel spring tube, which is formed integrally with an upper end and a lower end, wherein the upper end is cylindrical and external threads are evenly arranged on the tail end of the lower end.
[0008] The utility model adopts 430 stainless steel joints, which have stable physical properties, good rigidity and are not easy to rust; 304 stainless steel spring tubes are adopted, which have good ductility and corrosion resistance; tin welding is changed to argon arc welding to ensure the stability and sealing of welding, so that the welding between the joint and the spring tube is more firm and there will be no cold welding, thus ensuring the safety of the product during use.
[0009] The utility model adopts a square support block with thicker wall thickness and more solid materials, which increases the stability of the rear wall support. It is welded with a spring tube in a welding manner, so the positioning is more accurate and the connection structure is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0011] Figure 1 It is a schematic diagram of the structure of the spring body of a commercially available pressure gauge.
[0012] Figure 2 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.
[0013] Figure 3 It is a front view of an embodiment of the utility model.
[0014] Figure 4 It is a rear view of an embodiment of the utility model.
[0015] Figure 5 It is a schematic diagram of the structure of the stainless steel spring tube in the embodiment of the utility model.
[0016] In the figure: 1- stainless steel joint; 2- stainless steel spring tube; 3- square support block; 4- L-shaped connecting block. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] like Figure 2-Figure 5As shown, a new type of pressure gauge spring body in the embodiment of the utility model is made of all stainless steel, including a stainless steel joint 1 and a stainless steel spring tube 2 welded by argon arc welding. In this embodiment, a 430 stainless steel joint and a 304 stainless steel spring tube are used, and the 430 stainless steel joint and the 304 stainless steel spring tube are welded by argon arc welding. Among them, the cross section of the stainless steel joint 1 is arc-shaped, one end of which is welded to the side of the upper end of the stainless steel spring tube 2, and the other end is vertically welded with an L-shaped connecting block 4, and the L-shaped connecting block 4 is made of stainless steel and has a connecting hole. The stainless steel spring tube 2 is formed by an upper end and a lower end in one piece, and the lower end has the same structure as the original copper spring tube, and the tail end is evenly arranged with external threads. The upper end adopts a cylindrical structure, which can further improve the connection stability between the 304 stainless steel spring tube and the 430 stainless steel joint.
[0019] In order to solve the problem that the supporting parts of the commercially available pressure gauge spring body are prone to bending defects during the one-piece molding of the mold due to less feed, and the later shaping is very troublesome, the utility model adopts a square support block 3 to increase the stability of the rear wall support. The square support block 3 is welded to the stainless steel spring tube 2 by welding, and the positioning is more accurate and the connection structure is more stable. Specifically, the square support block 3 is made of stainless steel and is welded and fixed on the top of the stainless steel spring tube 2. The square support block 3 is provided with a plurality of through holes, and the arrangement of the through holes is the same as that of the commercially available pressure gauge spring body.
[0020] This specific implementation adopts all stainless steel materials, which ensures the product's mechanical properties, physical properties, ductility, ultra-high hardness, high temperature resistance, corrosion resistance, not easy to wear, and never rust. The components are connected by argon arc welding to ensure the stability and sealing of the welding, making the welding between the joint and the spring tube more firm and without cold welding, ensuring the safety of the product during use, meeting most working conditions, extending the product's use area, and ensuring the product's performance and requirements.
[0021] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A new type of pressure gauge spring body, characterized by: It comprises a stainless steel joint and a stainless steel spring tube welded by argon arc welding, wherein a square support block is welded and fixed to the top of the stainless steel spring tube; the stainless steel joint adopts a 430 stainless steel joint, which has an arc-shaped cross-section, one end of which is welded to the upper end side of the stainless steel spring tube, and the other end of which is vertically welded and fixed to an L-shaped connecting block, wherein a through hole is provided on the L-shaped connecting block; the stainless steel spring tube adopts a 304 stainless steel spring tube, which is integrally formed by an upper end and a lower end, wherein the upper end is a cylinder, and external threads are evenly arranged on the tail end of the lower end.
2. A new type of pressure gauge spring body as claimed in claim 1, characterized in that: The square support block is made of stainless steel and is provided with a plurality of through holes.