Membrane fatigue testing device for urban gas pressure regulator
The urban gas pressure regulator diaphragm fatigue testing device, with its reciprocating motion structure and inner door design, solves the limitations of single torsion testing and the safety issues of traditional door designs, achieving more accurate diaphragm performance evaluation and a safer operating environment.
Patent Information
- Application Number
- CN202422726777.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing gas pressure regulator diaphragm fatigue testing devices mostly use a single torsional direction testing method, which cannot fully reflect the performance of rubber diaphragms under actual complex working conditions, resulting in significant differences between test results and actual conditions. Furthermore, traditional door designs pose safety hazards.
A reciprocating motion structure is used for diaphragm torsion testing. Combined with the inner door design, the diaphragm is repeatedly torsioned through the cooperation of a rotating disk and a main gear. The inner door is opened from the inside through the inner slide rail and rollers, which improves the accuracy and safety of the test.
It improves the accuracy and applicability of diaphragm fatigue testing, reduces operational inconvenience and safety hazards, and ensures the comprehensiveness of test results and the safety of the equipment.
Smart Images
Figure CN223551503U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fatigue testing device technology, and in particular to a fatigue testing device for a diaphragm of a town gas pressure regulator. Background Technology
[0002] Urban gas pressure regulators are key equipment in urban gas transmission and distribution systems. Their main function is to ensure the stability and safety of gas supply by regulating outlet pressure. As a core component of the regulator, the fatigue resistance of the rubber diaphragm directly affects the regulator's working efficiency and service life. With the rapid development of the urban gas industry, the demand for regulator rubber diaphragms is constantly increasing, and the quality requirements for them are also becoming increasingly stringent.
[0003] In existing technologies, rubber diaphragms, as core components of voltage regulators, directly affect the safety of people's lives and property due to their fatigue resistance. Therefore, rigorous fatigue testing of diaphragms is particularly important. However, existing fatigue testing devices mostly adopt a single torsional direction testing method. Although this method can simulate a certain working load, it may not be comprehensive and rigorous enough in evaluating the performance of diaphragms under actual complex working conditions. The single torsional direction testing method has the following limitations: In actual use, rubber diaphragms are subjected to forces from different directions, including tension, compression, bending, and other forms. The single torsional direction test cannot fully reflect these complex stress conditions. Since it only considers stress changes in one direction, it may lead to significant differences between the test results and the actual situation, thus affecting the accurate assessment of the diaphragm's fatigue resistance. Rubber materials themselves have anisotropic characteristics, that is, they exhibit different mechanical properties in different directions. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fatigue testing device for the diaphragm of a town gas pressure regulator.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fatigue testing device for a diaphragm of a town gas pressure regulator, comprising a workbench and a baffle door. A sliding limit frame is fixed to the upper end of the workbench, and a support frame is fixed to the upper end of the workbench. A drive shaft is slidably connected inside the support frame, and a main gear is fixed to the surface of the drive shaft. The drive shaft is driven by an external motor. A rotating shaft is rotatably connected inside the sliding limit frame, and a rotating disk is fixed to the side end of the rotating shaft. An arc-shaped tooth is fixed to the back of the rotating disk, and a sliding groove is opened on the back of the rotating disk. The rotating disk is slidably connected to the drive shaft through the sliding groove. The surface of the main gear meshes with the arc-shaped tooth. Sliding plates are fixed to both ends of the external motor, and a fixed rod is slidably connected inside the sliding plate. Both ends of the fixed rod are fixedly connected to the sliding limit frame. A fixed clamping plate is provided on the surface of the rotating disk.
[0006] Preferably, a slide rail is fixed inside the workbench, a base is fixed inside the workbench, a turntable is slidably connected to the upper end of the base, a connecting rod is fixed to the surface of the turntable, a fixed seat is fixed to one end of the connecting rod, the bottom of the fixed seat is fixedly connected to the surface of the baffle door, and a pulley is rotatably connected to the back of the baffle door. In existing technologies, the traditional chamber door for fatigue testing devices used for diaphragms of urban gas pressure regulators opens outwards. This outward-opening door requires additional external space, which can be inconvenient in limited spaces like laboratories or production workshops, affecting the normal activities of other equipment or personnel. If personnel or other objects are nearby when the door is open, accidents may occur due to accidental contact. This is especially problematic in industrial environments where personnel and equipment movement is frequent, making the outward-opening door a potential safety hazard, increasing the risk of injury to workers or damage to equipment. To address these issues, this invention utilizes an internal chamber door structure. When the cabinet door needs to be opened, the operator pushes the side panels to the sides, causing them to unfold using a turntable and connecting rod. Simultaneously, the cabinet door moves inwards along a slide rail using rollers, thus opening the side panels inwards. This improves the safety and applicability of the fatigue testing device.
[0007] Preferably, the upper end of the worktable is provided with a support plate, a fixing ring is fixed inside the support plate, a fixing screw is threaded inside the support plate, the fixing screw is threaded to the worktable, a spring is slidably connected inside the fixing ring, and a nut is threaded to the upper end of the fixing screw. When the testing device is subjected to external vibration or impact during operation, the spring can exert its elastic properties to absorb and disperse this energy, thereby reducing the direct impact on the fixing screw and nut. This buffering effect helps to prevent the nut from loosening or falling off due to vibration, ensuring the stability and reliability of the testing device.
[0008] Preferably, the sliding limit frame has heat dissipation grooves on both sides. The design of the heat dissipation grooves can increase air circulation, improve heat dissipation efficiency, and help the equipment maintain a suitable temperature during long-term operation, avoiding performance degradation or damage caused by overheating.
[0009] Preferably, the surface of the fixing plate is provided with anti-slip texture. The anti-slip texture can increase the friction between the plate and the skin or fixing strap, prevent the plate from sliding or shifting during the fixing process, and thus ensure the stability of the fixing effect.
[0010] Preferably, the surface of the baffle door is fixed with a rubber hand guard, which can provide additional protection for the operator and prevent hand injuries when operating the baffle door, especially in situations where the baffle door needs to be operated frequently.
[0011] Preferably, sealing strips are fixed at both ends of the baffle door. The sealing strips can effectively block the gap between the baffle door and the door frame, prevent the leakage of smoke, dust or other media, and ensure the sealing performance of the baffle door when it is closed.
[0012] Beneficial effects
[0013] 1. In existing technologies, the rubber diaphragm, as a core component of a voltage regulator, directly affects the safety of people's lives and property due to its fatigue resistance. Therefore, rigorous fatigue testing of the diaphragm is particularly important. However, existing fatigue testing devices mostly adopt a single torsional direction testing method. Although this method can simulate a certain working load, it may not be comprehensive and rigorous enough in evaluating the performance of the diaphragm under actual complex working conditions. The single torsional direction testing method has the following limitations: In actual use, the rubber diaphragm is subjected to forces from different directions, including tension, compression, bending, and other forms. The single torsional direction test cannot fully reflect these complex stress conditions. Considering stress variations in one direction may lead to significant discrepancies between test results and actual conditions, thus affecting the accurate assessment of the diaphragm's fatigue resistance. Rubber materials inherently exhibit anisotropy, meaning they display different mechanical properties in different directions. To address this issue, this invention incorporates a reciprocating motion structure. When the operator needs to twist the diaphragm, the gas pressure regulator diaphragm is fixed to a clamping plate. Then, an external motor is activated, driving the main gear to rotate. The diaphragm moves up and down using the grooves on the rotating disk surface, while the arc-shaped teeth of the rotating disk repeatedly rotate along the main gear, causing the gas pressure regulator diaphragm to repeatedly twist. This improves the accuracy of the fatigue testing device and expands its applicability.
[0014] 2. In existing technologies, the traditional chamber door for fatigue testing devices used in urban gas pressure regulator diaphragms opens outwards. This outward-opening door requires additional external space, which can be inconvenient in limited spaces like laboratories or production workshops, affecting the normal activities of other equipment or personnel. If personnel or other objects are nearby when the door is open, accidents may occur due to accidental contact. This is especially problematic in industrial environments where personnel and equipment movement is frequent, making the outward-opening door a potential safety hazard, increasing the risk of injury to workers or damage to equipment. To address these issues, this invention utilizes an internal chamber door structure. When the cabinet door needs to be opened, the operator pushes the baffle doors to both sides, causing them to unfold with the aid of a turntable and connecting rod. Simultaneously, the cabinet door moves inwards along a slide rail using rollers, thus opening the baffle doors inwards. This improves the safety and applicability of the fatigue testing device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the drive device structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the door structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the fixing structure of this utility model.
[0019] Legend:
[0020] 1. Workbench; 101. Fixed clamping plate; 2. Sliding limit frame; 201. Support frame; 202. Drive shaft; 203. Main gear; 204. Rotating shaft; 205. Rotating disk; 206. Arc-shaped gear; 207. External motor; 208. Sliding plate; 209. Fixed rod; 3. Slide rail; 301. Base; 302. Turntable; 303. Connecting rod; 304. Fixed seat; 305. Baffle door; 306. Pulley; 4. Support plate; 401. Fixed screw; 402. Fixed ring; 403. Spring piece; 404. Nut. Detailed Implementation
[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:
[0024] Reference Figure 1-4A fatigue testing device for a diaphragm of a town gas pressure regulator includes a workbench 1 and a baffle door 305. A sliding limit frame 2 is fixed to the upper end of the workbench 1, and a support frame 201 is also fixed to the upper end of the workbench 1. A drive shaft 202 is slidably connected inside the support frame 201, and a main gear 203 is fixed to the surface of the drive shaft 202. The drive shaft 202 is driven by an external motor 207. A rotating shaft 204 is rotatably connected inside the sliding limit frame 2, and a rotating disk 205 is fixed to the side end of the rotating shaft 204. An arc-shaped tooth 206 is fixed to the back of the rotating disk 205, and a groove is opened on the back of the rotating disk 205. The rotating disk 205 passes through the groove. The main gear 203 is slidably connected to the drive shaft 202, and its surface meshes with the arc-shaped teeth 206. An external motor 207 has sliding plates 208 fixed at both ends. A fixed rod 209 is slidably connected inside the sliding plate 208, and both ends of the fixed rod 209 are fixedly connected to the sliding limit frame 2. A fixed clamping plate 101 is provided on the surface of the rotating disk 205. In the prior art, the rubber diaphragm, as a core component of the pressure regulator, has fatigue resistance that directly relates to the safety of people's lives and property. Therefore, rigorous fatigue testing of the diaphragm is particularly important. However, existing fatigue testing devices mostly adopt a single torsional direction testing method. While this method can simulate a certain workload, it may not be comprehensive or rigorous enough in evaluating the performance of diaphragms under complex real-world conditions. The single-torsion test method has the following limitations: In actual use, rubber diaphragms are subjected to forces from different directions, including tension, compression, and bending. A single-torsion test cannot fully reflect these complex stress conditions. Because it only considers stress changes in one direction, the test results may differ significantly from the actual situation, thus affecting the accurate assessment of the diaphragm's fatigue resistance. Furthermore, rubber materials themselves possess… Anisotropy is characterized by different mechanical properties in different directions. To address this issue, this invention adds a reciprocating motion structure. When the operator needs to twist the diaphragm, the gas pressure regulator diaphragm is fixed on the fixing plate 101. Then, the external motor 207 is started, driving the main gear 203 to rotate. The diaphragm moves up and down using the sliding groove on the surface of the rotating disk 205. At the same time, the arc-shaped teeth 206 of the rotating disk 205 rotate repeatedly along the main gear 203, thereby causing the gas pressure regulator diaphragm to twist repeatedly. This improves the accuracy of the fatigue testing device and expands its applicability.
[0025] The workbench 1 has a slide rail 3 fixed inside, and a base 301 fixed inside. A turntable 302 is slidably connected to the upper end of the base 301. A connecting rod 303 is fixed to the surface of the turntable 302. A fixed seat 304 is fixed to one end of the connecting rod 303. The bottom of the fixed seat 304 is fixedly connected to the surface of the baffle door 305. A pulley 306 is rotatably connected to the back of the baffle door 305. A support plate 4 is provided at the upper end of the workbench 1. A fixed ring 402 is fixed inside the support plate 4. A fixed screw 401 is threaded inside the support plate 4. The fixed screw 401 is threadedly connected to the workbench 1. A spring piece 403 is slidably connected inside the fixed ring 402. A nut 404 is threadedly connected to the upper end of the fixed screw 401. Heat dissipation grooves are provided on both sides of the sliding limit frame 2. Anti-slip textures are provided on the surface of the fixed clamping plate 101. A rubber hand guard is fixed to the surface of the baffle door 305. Sealing strips are fixed to both ends of the baffle door 305.
[0026] The working principle of this utility model is as follows: When the operator needs to twist the diaphragm, the gas pressure regulator diaphragm is fixed on the fixing clamp 101. Then, the external motor 207 is started to drive the main gear 203 to rotate. The diaphragm moves up and down with the help of the sliding groove on the surface of the rotating disk 205. At the same time, the arc-shaped teeth 206 of the rotating disk 205 rotate repeatedly along the main gear 203, thereby causing the gas pressure regulator diaphragm to be twisted repeatedly, thus improving the testing accuracy of the fatigue testing device and expanding its application range.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fatigue testing device for a diaphragm of a town gas pressure regulator, comprising a workbench (1) and a baffle door (305), characterized in that: A sliding limit frame (2) is fixed to the upper end of the workbench (1), and a support frame (201) is fixed to the upper end of the workbench (1). A drive shaft (202) is slidably connected inside the support frame (201), and a main gear (203) is fixed to the surface of the drive shaft (202). The drive shaft (202) is driven by an external motor (207). A rotating shaft (204) is rotatably connected inside the sliding limit frame (2), and a rotating disk (205) is fixed to the side end of the rotating shaft (204). The back of the rotating disk (205) is fixed. The rotating disk (205) has an arc-shaped tooth (206) and a sliding groove on its back. The rotating disk (205) is slidably connected to the drive shaft (202) through the sliding groove. The surface of the main gear (203) meshes with the arc-shaped tooth (206). The external motor (207) has sliding plates (208) fixed at both ends. The sliding plate (208) has a fixed rod (209) slidably connected inside. The fixed rod (209) is fixedly connected to the sliding limit frame (2) at both ends. The rotating disk (205) has a fixed clamping plate (101) on its surface.
2. The fatigue testing device for a town gas pressure regulator diaphragm according to claim 1, characterized in that: The workbench (1) is fixed with a slide rail (3) inside. The workbench (1) is fixed with a base (301) inside. The upper end of the base (301) is slidably connected to a turntable (302). The surface of the turntable (302) is fixed with a connecting rod (303). One end of the connecting rod (303) is fixed with a fixed seat (304). The bottom of the fixed seat (304) is fixedly connected to the surface of the baffle door (305). The back of the baffle door (305) is rotatably connected with a pulley (306).
3. The fatigue testing device for a town gas pressure regulator diaphragm according to claim 1, characterized in that: The workbench (1) is provided with a support plate (4) at the upper end. A fixing ring (402) is fixed inside the support plate (4). A fixing screw (401) is threaded inside the support plate (4). The fixing screw (401) is threaded to the workbench (1). A spring piece (403) is slidably connected inside the fixing ring (402). A nut (404) is threaded to the upper end of the fixing screw (401).
4. The fatigue testing device for a town gas pressure regulator diaphragm according to claim 1, characterized in that: The sliding limit frame (2) has heat dissipation grooves on both sides.
5. The fatigue testing device for a town gas pressure regulator diaphragm according to claim 1, characterized in that: The surface of the fixing clamp (101) is provided with anti-slip texture.
6. The fatigue testing device for a diaphragm of a town gas pressure regulator according to claim 2, characterized in that: The baffle door (305) is fixed with a rubber hand guard.
7. The fatigue testing device for a diaphragm of a town gas pressure regulator according to claim 2, characterized in that: Sealing strips are fixed at both ends of the baffle door (305).