An automatic pressure stabilizing device for a piston compressor
By introducing a roller shutter and gear mechanism into the automatic pressure stabilizing device of the piston compressor, the automatic shielding protection of the protective switch is achieved, which solves the problem of the protective switch being easily accidentally touched, improves safety and simplifies operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DARUI COMPRESSOR CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
AI Technical Summary
The protection switch of the existing piston compressor automatic pressure regulator is easily triggered by external factors, which reduces its safety.
An automatic pressure stabilizing device for a piston compressor was designed. The protective switch is shielded and protected by a roller shutter and gear mechanism. The roller shutter is automatically opened and closed by the unidirectional rotation of the gear, avoiding manual operation.
It effectively prevents the protective switch from being accidentally touched, improves the safety of the switch, and simplifies the process of moving the automatic voltage regulator.
Smart Images

Figure CN224282859U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of piston compressor pressure stabilization technology, and in particular relates to an automatic pressure stabilization device for piston compressors. Background Technology
[0002] Piston compressors are characterized by smooth operation, low noise, minimal wear, long service life, high energy efficiency, reliable operation, and excellent overall performance. During operation, piston compressors require a high degree of power stability. A voltage stabilizer ensures the compressor continues to operate normally under voltage fluctuations, thus protecting the equipment and improving efficiency. An automatic voltage stabilizer consists of a contact-type autotransformer, a servo motor, and an automatic control circuit. When the mains voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjusting the position of the autotransformer's carbon brushes to bring the output voltage to the rated value and achieve a stable state. It can simultaneously supply three-phase 380V electrical equipment and includes overvoltage protection.
[0003] The protection switch of some piston compressor automatic pressure regulators is exposed, which means that the protection switch may be accidentally activated or deactivated by external forces during use. Therefore, there is a need for an automatic pressure regulator device for piston compressors that can shield and protect the protection switch on the surface of the automatic pressure regulator, thereby preventing the protection switch from being accidentally activated and improving the safety of the protection switch in use. Utility Model Content
[0004] The purpose of this invention is to provide an automatic pressure stabilizing device for a piston compressor, which shields and protects the protective switch on the surface of the automatic pressure stabilizer, preventing accidental contact with the protective switch and thus improving the safety of the protective switch in use, thereby solving the technical problems mentioned in the background art.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An automatic pressure stabilizing device for a piston compressor includes an automatic pressure stabilizer: a protective switch is installed on the surface of the automatic pressure stabilizer, a fixed base is fixedly connected to the surface of the automatic pressure stabilizer by bolts, a rotating rod is rotatably connected to the inner wall of the fixed base, a roller shutter is provided on the surface of the rotating rod, two symmetrically arranged limit rails are fixedly connected to the automatic pressure stabilizer by bolts, a U-shaped plate is fixedly connected to the surface of the fixed base, a shaft one and a shaft two are rotatably connected to the inner wall of the U-shaped plate, a spring box is fixedly connected to the inner wall of the spring box, a shaft three is rotatably connected to the inner wall of the spring box, a gear one is fixedly connected to the surface of the shaft three, a gear two is fixedly connected to the surface of the shaft one, a clamping plate is fixedly installed on the surface of the shaft two, a tension spring is fixedly connected between the clamping plate and the inner wall of the U-shaped plate, a piston compressor is arranged on the outside of the automatic pressure stabilizer, and the automatic pressure stabilizer and the piston compressor are electrically connected by wires.
[0006] Preferably, the surface of the roller shutter is slidably connected to the inner wall of the limiting rail.
[0007] Preferably, the end of the first shaft extends through to the outside of the U-shaped plate and is fixedly connected to the rotating rod.
[0008] Preferably, a coil spring is fixedly connected between the inner wall of the coil spring box and the shaft three.
[0009] Preferably, gear two meshes with gear one, and the clamping plate engages with gear one.
[0010] Preferably, the automatic voltage regulator is equipped with rollers at its bottom.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model uses a roller shutter to slide down within the inner wall of the limiting rail, thereby shielding and protecting the protective switch. Furthermore, the unidirectional rotation of gear two causes shaft one to lock the roller shutter's rolling and unrolling state via a rotating rod. This achieves the purpose of shielding and protecting the protective switch on the surface of the automatic voltage regulator, preventing accidental activation of the protective switch, and thus improving the safety of the protective switch during use.
[0013] 2. By setting up a coil spring, the third shaft is rotated and force is applied, so that when the card plate is disengaged from the gear one, the third shaft drives the second gear to rotate through the gear one. Then, the second gear drives the roller blind to roll up through the first shaft and the rotating rod, thus avoiding the need for manual operation when the roller blind is rolled up.
[0014] 3. The rollers in this invention facilitate the movement of the automatic voltage regulator, improving the ease of moving the automatic voltage regulator and reducing the difficulty of repositioning it during use. Attached Figure Description
[0015] in:
[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0017] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of a portion of point A in the middle;
[0018] Figure 3 This is a three-dimensional schematic diagram of a fixed base and a rotating rod according to an embodiment of the present invention;
[0019] Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point B in the middle.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Automatic voltage regulator; 2. Protective switch; 3. Fixing base; 4. Rotating rod; 5. Roller shutter; 6. Limit rail; 7. U-shaped plate; 8. Shaft 1; 9. Shaft 2; 10. Spring box; 11. Shaft 3; 12. Spring; 13. Gear 1; 14. Gear 2; 15. Clamping plate; 16. Tension spring; 17. Roller; 18. Piston compressor. Detailed Implementation
[0022] In the following description, embodiments of the automatic pressure stabilizing device for a piston compressor according to the present invention will be described with reference to the accompanying drawings. Example 1
[0023] Figure 1-4This invention illustrates an embodiment of an automatic pressure stabilizing device for a piston compressor, comprising an automatic pressure stabilizer 1. A protective switch 2 is mounted on the surface of the automatic pressure stabilizer 1. A fixed base 3 is bolted to the surface of the automatic pressure stabilizer 1. A rotating rod 4 is rotatably connected to the inner wall of the fixed base 3. A roller shutter 5 is mounted on the surface of the rotating rod 4. The automatic pressure stabilizer 1 is fixedly connected to two symmetrically arranged limiting rails 6 by bolts. The surface of the roller shutter 5 is slidably connected to the inner wall of the limiting rails 6. A U-shaped plate 7 is fixedly connected to the surface of the fixed base 3. A first shaft 8 and a second shaft 9 are rotatably connected to the inner wall of the U-shaped plate 7. The end of the first shaft 8 extends through to the outside of the U-shaped plate 7 and is fixedly connected to the rotating rod 4. A spring box 10 is fixedly connected to the inner wall of the U-shaped plate 7. A third shaft 11 is rotatably connected to the inner wall of the spring box 10. A coil spring 12 is fixedly connected between the inner wall of the coil spring box 10 and the shaft 11. The coil spring 12 applies rotational force to the shaft 11, causing the locking plate 15 to disengage from the gear 13. The shaft 11 then drives the gear 2 14 to rotate through the gear 13. The gear 2 14 then drives the roller shutter 5 to retract through the shaft 8 and the rotating rod 4, avoiding the need for manual operation when the roller shutter 5 retracts. The surface of the shaft 11 is fixedly connected to the gear 13, the surface of the shaft 8 is fixedly connected to the gear 2 14, and the surface of the shaft 2 9 is fixedly installed with the locking plate 15. A tension spring 16 is fixedly connected between the locking plate 15 and the inner wall of the U-shaped plate 7. A piston compressor 18 is provided on the outside of the automatic voltage regulator 1, and the automatic voltage regulator 1 and the piston compressor 18 are electrically connected through wires. Example 2
[0024] Figure 1-4This invention illustrates an embodiment of an automatic pressure stabilizing device for a piston compressor, comprising an automatic pressure stabilizer 1. A protective switch 2 is mounted on the surface of the automatic pressure stabilizer 1. A fixed base 3 is bolted to the surface of the automatic pressure stabilizer 1. A rotating rod 4 is rotatably connected to the inner wall of the fixed base 3. A roller shutter 5 is provided on the surface of the rotating rod 4. The automatic pressure stabilizer 1 is fixedly connected to two symmetrically arranged limiting rails 6 by bolts. A U-shaped plate 7 is fixedly connected to the surface of the fixed base 3. A shaft 8 and a shaft 9 are rotatably connected to the inner wall of the U-shaped plate 7. A spring box 10 is fixedly connected to the inner wall of the U-shaped plate 7. A shaft 3 11 is rotatably connected to the inner wall of the spring box 10. A shaft 3 11 is fixedly connected to the surface of the shaft 3 11. The device has a gear 13, a shaft 8 with a gear 14 fixedly connected to it, a shaft 9 with a clamping plate 15 fixedly installed on it, and a tension spring 16 fixedly connected between the clamping plate 15 and the inner wall of the U-shaped plate 7. A piston compressor 18 is provided on the outside of the automatic voltage regulator 1. The automatic voltage regulator 1 and the piston compressor 18 are electrically connected by a wire. The gear 14 meshes with the gear 13, and the clamping plate 15 engages with the gear 13. A roller 17 is installed at the bottom of the automatic voltage regulator 1. The roller 17 facilitates the movement of the automatic voltage regulator 1, improves the convenience of moving the automatic voltage regulator 1, and reduces the difficulty of repositioning the automatic voltage regulator 1 during use.
[0025] Working Principle: When using this invention, the user pulls the roller shutter 5 down along the inner wall of the limiting rail 6, causing the roller shutter 5 to shield the protective switch 2. When it is necessary to roll up the roller shutter 5, the user presses the locking plate 15 to disengage from the gear 13 and compresses the tension spring 16. At this time, the rebound force of the spring 12 drives the gear 2 14 to rotate through the shaft 3 11 and the gear 13. Then, the gear 2 14 drives the shaft 1 8 to rotate, which in turn causes the shaft 1 8 to roll up the roller shutter 5 through the rotating rod 4. The locking plate 15 and the tension spring 16 work together to lock the unidirectional rotation of the gear 2 14. This allows the shaft 1 8 to lock the roller shutter 5 in the shielded state outside the protective switch 2 through the rotating rod 4, thus shielding the protective switch on the surface of the automatic voltage regulator and preventing accidental activation of the protective switch, thereby improving the safety of the protective switch in use.
[0026] In summary, this automatic pressure stabilizing device for piston compressors uses the sliding and pulling motion of the roller shutter 5 within the inner wall of the limiting rail 6 to shield and protect the protective switch 2. Furthermore, the unidirectional rotation of gear 14 causes shaft 8 to lock the roller shutter 5 in its rolling or unrolling state via rotating rod 4. This effectively shields and protects the protective switch on the surface of the automatic pressure stabilizer, preventing accidental activation of the protective switch and thus improving the safety of the protective switch during use.
Claims
1. An automatic pressure stabilizing device for a piston compressor, characterized in that, Includes an automatic voltage regulator (1): a protective switch (2) is installed on the surface of the automatic voltage regulator (1), a fixed seat (3) is fixedly connected to the surface of the automatic voltage regulator (1) by bolts, a rotating rod (4) is rotatably connected to the inner wall of the fixed seat (3), a roller shutter (5) is provided on the surface of the rotating rod (4), two symmetrically arranged limit rails (6) are fixedly connected to the automatic voltage regulator (1) by bolts, a U-shaped plate (7) is fixedly connected to the surface of the fixed seat (3), and a shaft one (8) and a shaft two (9) are rotatably connected to the inner wall of the U-shaped plate (7). A coil spring box (10) is fixedly connected to the inner wall. A shaft three (11) is rotatably connected to the inner wall of the coil spring box (10). A gear one (13) is fixedly connected to the surface of the shaft three (11). A gear two (14) is fixedly connected to the surface of the shaft one (8). A clamping plate (15) is fixedly installed on the surface of the shaft two (9). A tension spring (16) is fixedly connected between the clamping plate (15) and the inner wall of the U-shaped plate (7). A piston compressor (18) is provided on the outside of the automatic voltage regulator (1). The automatic voltage regulator (1) and the piston compressor (18) are electrically connected by a wire.
2. The automatic pressure stabilizing device for a piston compressor according to claim 1, characterized in that, The surface of the roller shutter (5) is slidably connected to the inner wall of the limiting rail (6).
3. The automatic pressure stabilizing device for a piston compressor according to claim 2, characterized in that, The end of the shaft (8) extends through the outside of the U-shaped plate (7) and is fixedly connected to the rotating rod (4).
4. The automatic pressure stabilizing device for a piston compressor according to claim 3, characterized in that, A coil spring (12) is fixedly connected between the inner wall of the coil spring box (10) and the shaft three (11).
5. The automatic pressure stabilizing device for a piston compressor according to claim 4, characterized in that, The second gear (14) meshes with the first gear (13), and the clamping plate (15) engages with the first gear (13).
6. The automatic pressure stabilizing device for a piston compressor according to claim 5, characterized in that, The automatic voltage regulator (1) is equipped with rollers (17) at its bottom.