Vortex type air compressor

Abstract

The invention relates to the technical field of air compressors, in particular to a vortex type air compressor which comprises a shell and a motor, the motor is coaxially and fixedly connected into the shell, a rotating shaft is connected to the output end of the motor, a movable vortex plate is rotationally connected to the rotating shaft, a static vortex plate is further fixedly connected into the shell, and the movable vortex plate is in sliding connection with the static vortex plate. According to the vortex type air compressor, the transmission assembly is arranged in the vortex type air compressor, when the motor rotates reversely, the transmission assembly drives the adjusting rod to move towards the outer side of the rotating shaft along the adjusting cavity, at the moment, the movable vortex plate can move along with the adjusting rod, the gap between the static vortex plate and the movable vortex plate is gradually decreased, and it is ensured that the gap between the static vortex plate and the movable vortex plate is within the reasonable range; and the working performance and the output pressure of the scroll air compressor are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to a scroll air compressor. Background Art

[0002] A scroll air compressor, also known as a scroll compressor or a scroll compressor, is a mechanical device that compresses air or gas through a scroll motion. A fixed scroll and a movable scroll are arranged inside the scroll air compressor. The fixed scroll and the movable scroll cooperate with each other to form a compression chamber. The movable scroll moves in a circle along a set trajectory through the action of a driving device. During the movement, the space of the compression chamber is continuously reduced, and the gas inside the compression chamber will be compressed to eventually form compressed gas.

[0003] After long-term use, the internal static scroll and orbiting scroll of a conventional scroll air compressor are prone to slight wear on their surfaces due to long-term contact and friction. Wear will cause the gap between the static scroll and the orbiting scroll to become larger. The compression efficiency of the scroll air compressor depends on the precise fit between the scrolls. The larger gap means that gas is more likely to leak from the high-pressure area to the low-pressure area. This gas leakage will cause the compressor to be unable to effectively compress the gas to the required pressure, thereby affecting its working performance and output pressure. If a conventional scroll air compressor experiences such wear, it would be too costly to directly replace the scroll.

[0004] In view of the above problems, the prior art provides some solutions. For example, patent application number: CN202123031029.0 provides an electric vehicle-mounted air compressor, including a casing, one end of which is open, a horizontally placed static scroll plate is arranged in the casing, a static scroll sheet is fixedly arranged on a side of the static scroll plate close to the casing opening, the static scroll sheet is arranged in a spiral shape, an exhaust hole is opened near the center of the static scroll sheet, the static scroll plate is rotatably connected to a parallel movable scroll plate, and a movable scroll plate is fixedly arranged on a side of the movable scroll plate close to the static scroll plate. The scroll plate and the movable scroll plate slide in a circular motion along the vortex direction of the stationary scroll plate, and the stationary scroll plate is provided with an oil guide groove along the inner side of the stationary scroll plate. This solution reduces the wear of the movable scroll plate and the stationary scroll plate by lubricating between the movable scroll plate and the stationary scroll plate, thereby increasing the service life of the scroll compressor. However, the movable scroll plate and the stationary scroll plate will still wear out during long-term use. This solution does not solve the problem that after the movable scroll plate and the stationary scroll plate are worn, the gap between the movable scroll plate and the stationary scroll plate becomes larger, affecting the working performance and output pressure of the scroll air compressor. Summary of the invention

[0005] The object of the present invention is to provide a scroll air compressor to solve the problem that after long-term use of a conventional scroll air compressor, the surfaces of the internal static scroll and the movable scroll are worn due to long-term contact friction, which leads to an increase in the gap between the static scroll and the movable scroll, thereby affecting the working performance and output pressure of the scroll air compressor.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A scroll air compressor comprises a shell and a motor, the motor is coaxially fixedly connected to the inside of the shell, a rotating shaft is connected to the output end of the motor, a movable scroll is rotatably connected to the rotating shaft, and a fixed scroll is also fixedly connected to the inside of the shell, the rotating shaft comprises a fixed shaft and a movable shaft, the fixed shaft is fixedly connected to the shell, the movable shaft is fixedly connected to the output end of the motor, an adjusting chamber is provided on the movable shaft, an adjusting rod is slidably connected in the adjusting chamber, a displacement hole is also provided on the shell, one end of the adjusting rod extends to the outside of the rotating shaft through the displacement hole and is rotatably connected to the movable scroll, a transmission assembly is also provided inside the rotating shaft, a pressure sensor is provided on the static scroll, the pressure sensor is electrically connected to the motor, and when the motor reverses, the transmission assembly drives the adjusting rod to move along the adjusting chamber to the outside of the rotating shaft, a plurality of limit blocks are provided on the inner wall of the adjusting chamber, a plurality of limit grooves are provided on the adjusting rod, and the inner wall of the limit groove contacts the surface of the limit block.

[0008] It is easy to understand that when the scroll air compressor is used for a long time, the internal fixed scroll and the movable scroll will wear out due to long-term contact and friction, resulting in a larger gap between the fixed scroll and the movable scroll. At this time, the pressure sensor on the fixed scroll detects that the pressure from the movable scroll becomes smaller, and the motor inside the scroll air compressor is started to reverse. When the motor reverses, the transmission assembly drives the adjustment rod to move along the adjustment chamber toward the outside of the rotating shaft. At this time, the movable scroll will move with the adjustment rod, and the gap between the fixed scroll and the movable scroll will gradually decrease. The pressure sensor detects that the pressure from the movable scroll gradually decreases. The gradual change is large. When the pressure on the pressure sensor returns to a reasonable range, the motor stops reversing. At this time, the gap between the static scroll and the movable scroll returns to a reasonable range. Therefore, when the gap between the static scroll and the movable scroll becomes larger due to wear during long-term use, this solution can adjust the gap between the static scroll and the movable scroll by driving the motor inside the scroll air compressor, ensuring that the gap between the static scroll and the movable scroll is within a reasonable range, ensuring the working performance and output pressure of the scroll air compressor, and avoiding frequent replacement of the static scroll and the movable scroll due to wear, thereby reducing maintenance costs.

[0009] Preferably, the transmission assembly includes an adjusting gear 1, a rotating rod is provided on the adjusting gear 1, a one-way bearing 1 is provided between the adjusting gear 1 and the rotating rod, a thread 1 is provided on the rotating rod, a rotating hole is provided on the adjusting rod, a thread 2 is provided on the inner wall of the rotating hole, the rotating rod is rotatably connected to the moving shaft, the rotating rod extends into the rotating hole, and the thread 1 is in contact with the thread 2, a hollow rod is provided on the static shaft, a one-way bearing 2 is provided between the hollow rod and the rotating shaft, the adjusting gear 2 is fixedly connected to the hollow rod, the adjusting gear 1 is meshed with the adjusting gear 2, the one-way bearing 1 is used to limit the rotation of the adjusting gear 1 in the adjustment direction of the rotating rod, and the one-way bearing 2 is used to limit the rotation of the hollow rod in the reverse direction of the motor.

[0010] It is easy to understand that the adjusting gear 1 and the adjusting gear 2 are meshed with each other. When the motor rotates forward and the scroll air compressor works normally, the adjusting gear 1 rotates relative to the rotating rod. At this time, the transmission component will not affect the normal operation of the scroll air compressor. When the motor reverses, since a one-way bearing 1 is provided between the adjusting gear 1 and the rotating rod, the adjusting gear 1 cannot rotate relative to the rotating rod. Therefore, the adjusting gear 1 will drive the rotating rod to rotate together, and since the thread 1 and the thread 2 are in contact, the rotating rod rotates and drives the adjusting rod to move toward the outside of the rotating shaft. This scheme uses the adjustment method of thread meshing rotation to enable the adjusting rod to be finely adjusted. The design also adjusts the position of the adjusting rod by reversing the motor, so that the gap between the static scroll and the movable scroll is within a reasonable range, thereby ensuring the working performance and output pressure of the scroll air compressor. In addition, the reverse drive of the motor can avoid the need for an additional drive motor inside, saving costs.

[0011] Preferably, a reinforcement groove is provided on the adjusting rod, a reinforcement rod is rotatably connected in the moving shaft, the reinforcement rod is threadedly connected to the moving shaft, the reinforcement rod extends into the reinforcement groove, and a reinforcement block is rotatably connected to one end of the reinforcement rod, the reinforcement block contacts the inner wall of the reinforcement groove, a reinforcement gear is fixedly connected to the other end of the reinforcement rod, a control gear is fixedly connected to the hollow rod, the control gear and the reinforcement gear are meshed with each other, and a locking assembly is also provided inside the rotating shaft, and the locking assembly limits the rotation of the hollow rod when the motor reverses.

[0012] It is easy to understand that the adjusting rod moves in the adjusting chamber through the rotation of the adjusting gear 1, and the movable scroll will be subjected to pressure when working. At this time, the pressure acts on the adjusting rod, and the internal pressure of the air compressor is large. At this time, the thread is easily deformed under force, resulting in an increase in the gap, which affects the working performance and output pressure of the scroll air compressor. The design is achieved by designing a reinforcement rod. When the adjusting rod is adjusted, the reinforcement gear rotates through the control gear on the hollow rod. The reinforcement gear rotates and drives the reinforcement rod to rotate. The reinforcement rod continues to move upward through the threaded connection with the moving shaft. The reinforcement block on the reinforcement rod contacts the adjusting rod and applies pressure to the adjusting rod, thereby increasing the friction between the adjusting rod and the moving shaft and reducing the force on the thread. This design ensures that the adjusting rod will not be accidentally displaced when there is no need to adjust the adjusting rod, thereby improving the reliability of the scroll air compressor.

[0013] Preferably, the locking assembly includes a locking block, which is slidably connected to the static shaft, a locking groove is provided on the hollow rod, a ratchet is provided in the locking groove, a plurality of protrusions are provided on the locking block, and the plurality of protrusions are in contact with the ratchet, a telescopic hole 1 is also provided on the hollow rod, a telescopic hole 2 is provided on the moving shaft, a telescopic rod is slidably connected in the telescopic hole 2, one end of the telescopic rod extends outside the telescopic hole 2 and contacts the locking block through the telescopic hole 1, a spring 2 is provided between the telescopic rod and the static shaft, and an arc surface is provided on the telescopic rod, and the arc surface is located in the reverse direction of the motor.

[0014] It is easy to understand that when the motor is unreversed, the telescopic rod will rotate with the moving shaft. At this time, the hollow shaft cannot be reversed due to the action of the one-way bearing 2, and the arc surface on the telescopic rod is squeezed by the inner wall of the telescopic hole 1, causing the telescopic rod to retreat into the telescopic hole 2, and the telescopic rod moves with the moving shaft to leave the telescopic hole 1 on the hollow rod. At this time, the locking block loses the support of the telescopic rod and falls down. The protrusion on the locking rod cooperates with the ratchet on the hollow rod to prevent the hollow rod from rotating, and the control gear cannot rotate. When the motor rotates forward, the control gear cannot rotate. The control gear then drives the reinforcement gear to rotate, so that the adjusting rod is reinforced again. When the telescopic rod follows the moving shaft to rotate forward and returns to the position of telescopic hole one, the telescopic rod will be lifted up by spring two inside telescopic hole two, so that the telescopic rod will lift up the locking block, and the control gear will be unlocked and rotate with the moving shaft. This design enables the reinforcement gear to unlock the adjusting rod when the motor is reversed, and to reinforce the adjusting rod when the motor rotates forward. After the reinforcement is completed, the reinforcement gear can remain in the reinforced state. This design further improves the reliability of the scroll air compressor.

[0015] Preferably, an isolation groove is provided on the adjusting gear 2, and when the telescopic rod enters the telescopic hole 1, the isolation groove is located below the adjusting gear 1.

[0016] It is easy to understand that when the motor reverses, the control gear drives the reinforcement gear to unlock the adjusting rod. At this time, the adjusting gear one rotates around the adjusting gear two, but due to the effect of the isolation groove, the adjusting gear one has not yet engaged with the adjusting gear two. When the adjusting rod is unlocked, the adjusting gear one engages with the adjusting gear two, and the adjusting rod is adjusted at this time. This design avoids the simultaneous adjustment and unlocking when the motor reverses, resulting in the position of the adjusting rod being adjusted before the adjusting rod is completely unlocked, thereby causing damage to the adjusting rod and the second thread in the rotating hole.

[0017] Preferably, the locking block comprises a pressure portion and a locking portion, the locking portion is rotatably connected to the pressure portion, the pressure portion is slidably connected to the static shaft, and a spring is provided between the pressure portion and the static shaft.

[0018] It is easy to understand that when the adjusting rod is adjusted, the locking block will fall back and limit the rotation of the hollow rod as soon as the telescopic rod leaves the telescopic hole. However, since the limit block is locked by cooperating with the ratchet on the control gear through the protrusion provided on it, it is easy to cause the protrusion and the ratchet to not fully cooperate when the limit block falls, which causes the control gear to be able to rotate a certain distance until the protrusion and the ratchet are fully cooperated. This design divides the locking block into a pressure part and a locking part, and a spring is arranged between the pressure part and the hollow rod. When the telescopic rod leaves the telescopic hole, the pressure part will move downward under the pressure of the spring. At this time, the pressure of the spring will drive the locking part to rotate, and the protrusion on the rotating part will cooperate with the ratchet on the hollow rod. This design enables the protrusion on the rotating part to better cooperate with the ratchet on the hollow rod.

[0019] Preferably, the reinforcement groove is in a "V" shape, the reinforcement block is in a "V" shape consistent with the reinforcement groove, and the two side planes of the reinforcement block are in contact with the inner walls of the two sides of the reinforcement groove.

[0020] It is easy to understand that when the adjusting gear 1 rotates, the rotating rod rotates with the adjusting gear 1. At this time, because the thread 1 on the rotating rod cooperates with the thread 2 on the adjusting rod, the adjusting rod will move to the outside of the rotating shaft, and because of the friction between the threads, when the adjusting rod is adjusted, the adjusting rod will be driven to one side by the torque from the rotating rod, which makes the contact surface between the adjusting rod and the moving shaft bear greater pressure. The design sets the reinforcement groove and the reinforcement block to the same "V" shape. When the adjusting rod is driven to rotate by a force, a part of the force will act on the plane on one side of the "V", reducing the pressure on the contact surface between the adjusting rod and the moving shaft and increasing the service life of the adjusting rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention arranges a transmission assembly inside the scroll air compressor so that when the motor is reversed, the transmission assembly drives the adjusting rod to move along the adjusting chamber toward the outside of the rotating shaft. At this time, the movable scroll will follow the adjustment rod to move, and the gap between the fixed scroll and the movable scroll will gradually become smaller, thereby ensuring that the gap between the fixed scroll and the movable scroll is within a reasonable range, thereby ensuring the working performance and output pressure of the scroll air compressor.

[0023] 2. The present invention arranges a reinforcement block inside the scroll air compressor. When the adjusting rod completes the adjustment, the reinforcement gear rotates through the control gear on the hollow rod. The reinforcement gear rotates and drives the reinforcement rod to rotate. The reinforcement rod continuously moves upward through the threaded connection with the moving shaft. The reinforcement block on the reinforcement rod contacts the adjusting rod and applies pressure to the adjusting rod, thereby preventing the adjusting rod from being displaced due to pressure. This design ensures that when the adjusting rod does not need to be adjusted, the adjusting rod will not be displaced accidentally, thereby improving the reliability of the scroll air compressor.

[0024] 3. The present invention sets an isolation groove on the adjusting gear 2. When the motor reverses, the control gear drives the reinforcement gear to unlock the adjusting rod. At this time, the adjusting gear 1 rotates around the adjusting gear 2, but due to the effect of the isolation groove, the adjusting gear 1 has not yet engaged with the adjusting gear 2. When the adjusting rod is unlocked, the adjusting gear 1 engages with the adjusting gear 2, and the adjusting rod is adjusted at this time. This design avoids the situation where the adjusting rod is adjusted before it is unlocked, thereby avoiding damage to the adjusting rod and the second thread in the rotating hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the scroll air compressor of the present invention;

[0026] Figure 2 for Figure 1 Sectional view at AA;

[0027] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 4 for Figure 2 axonometric drawing;

[0029] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0030] Figure 6 for Figure 1 Sectional view at DD in the middle;

[0031] Figure 7 for Figure 6 Enlarged view of point E in the middle;

[0032] Figure 8 for Figure 1 Sectional view at FF;

[0033] Fig. 9 for Figure 8 Enlarged view of point G in the middle;

[0034] Fig.10 It is a structural schematic diagram of the hollow rod in the present invention;

[0035] Fig.11 for Fig.10 sectional view of .

[0036] In the figure: 1, housing; 11, static scroll; 2, motor; 3, rotating shaft; 31, static shaft; 311, hollow rod; 312, adjusting gear 2; 3121, isolation groove; 313, control gear; 314, one-way bearing 2; 315, locking groove; 316, ratchet; 317, telescopic hole 1; 32, moving shaft; 321, moving scroll; 322, adjusting chamber; 3221, displacement hole; 3222, limit block; 323, adjusting rod; 3231. Rotating hole; 3232. Thread 2; 3233. Reinforcement groove; 3234. Limiting groove; 324. Telescopic hole 2; 3241. Telescopic rod; 3242. Spring 2; 4. Adjusting gear 1; 41. Rotating rod; 411. Thread 1; 42. One-way bearing 1; 5. Reinforcement rod; 51. Reinforcement block; 52. Reinforcement gear; 6. Locking block; 61. Pressure portion; 611. Spring 1; 62. Locking portion; 621. Protrusion. DETAILED DESCRIPTION

[0037] The present invention provides an integrated temperature sensor, and the technical solution is as follows:

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9A scroll air compressor comprises a housing 1 and a motor 2, wherein the motor 2 is coaxially fixedly connected to the housing 1, a rotating shaft 3 is connected to the output end of the motor 2, a movable scroll 321 is rotatably connected to the rotating shaft 3, a fixed scroll 11 is also fixedly connected to the housing 1, the movable scroll 321 is slidably connected to the fixed scroll 11, the rotating shaft 3 comprises a static shaft 31 and a dynamic shaft 32, the static shaft 31 is fixedly connected to the housing 1, the dynamic shaft 32 is fixedly connected to the output end of the motor 2, an adjusting chamber 322 is provided on the dynamic shaft 32, an adjusting rod 323 is slidably connected in the adjusting chamber 322, and a A displacement hole 3221, one end of the adjusting rod 323 extends through the displacement hole 3221 to the outside of the rotating shaft 3 and is rotatably connected to the movable scroll 321. A transmission assembly is also provided inside the rotating shaft 3. A pressure sensor is provided on the fixed scroll 11. The pressure sensor is electrically connected to the motor 2. When the motor 2 reverses, the transmission assembly drives the adjusting rod 323 to move along the adjusting chamber 322 toward the outside of the rotating shaft 3. A plurality of limit blocks 3222 are provided on the inner wall of the adjusting chamber 322. A plurality of limit grooves 3234 are opened on the adjusting rod 323. The inner wall of the limit groove 3234 is in contact with the surface of the limit block 3222.

[0039] For further information, see Figures 1 to 3 The transmission assembly includes an adjusting gear 4, a rotating rod 41 is provided on the adjusting gear 4, a one-way bearing 42 is provided between the adjusting gear 4 and the rotating rod 41, a thread 411 is provided on the rotating rod 41, a rotating hole 3231 is provided on the adjusting rod 323, a thread 2 3232 is provided on the inner wall of the rotating hole 3231, the rotating rod 41 is rotatably connected to the moving shaft 32, the rotating rod 41 extends into the rotating hole 3231, and the thread 1 411 contacts the thread 2 3232, a hollow rod 311 is provided on the static shaft 31, the hollow rod 311 and the rotating shaft 3 are provided with a one-way bearing 2 314, the adjusting gear 2 312 is fixedly connected to the hollow rod 311, the adjusting gear 4 is meshed with the adjusting gear 2 312, the one-way bearing 42 is used to limit the rotation of the adjusting gear 4 toward the adjusting direction of the rotating rod 41, and the one-way bearing 2 314 is used to limit the rotation of the hollow rod 311 toward the reverse direction of the motor 2.

[0040] See also Figures 1 to 11The adjusting rod 323 is provided with a reinforcement groove 3233, the movable shaft 32 is rotatably connected with a reinforcement rod 5, the reinforcement rod 5 is threadedly connected with the movable shaft 32, the reinforcement rod 5 extends into the reinforcement groove 3233, and one end of the reinforcement rod 5 is rotatably connected with a reinforcement block 51, the reinforcement block 51 contacts the inner wall of the reinforcement groove 3233, the other end of the reinforcement rod 5 is fixedly connected with a reinforcement gear 52, the hollow rod 311 is fixedly connected with a control gear 313, and the control gear 313 and the reinforcement gear 52 mesh with each other. The rotating shaft 3 is also provided with a locking assembly inside. When the motor 2 is reversed, the locking assembly limits the rotation of the hollow rod 311. The locking assembly includes a locking block 6. The locking block 6 is slidably connected to the static shaft 31. The hollow rod 311 is provided with a locking groove 315. The locking groove 315 is provided with a ratchet 316. The locking block 6 is provided with a plurality of protrusions 621. The plurality of protrusions 621 contact the ratchet 316. The hollow rod 311 is also provided with a telescopic hole 317. The moving shaft 32 is provided with a locking groove 315. The second telescopic hole 324 is slidably connected with a telescopic rod 3241, one end of the telescopic rod 3241 extends out of the second telescopic hole and contacts the locking block 6 through the first telescopic hole 317, a second spring 3242 is provided between the telescopic rod 3241 and the static shaft 31, and an arc surface is provided on the telescopic rod 3241, and the arc surface is located in the reverse direction of the motor 2, the reinforcement groove 3233 is a "V" shape, and the reinforcement block 51 is a "V" shape consistent with the reinforcement groove 3233. shape, the two side planes of the reinforcement block 51 are in contact with the inner walls of the two sides of the reinforcement groove 3233, an isolation groove 3121 is provided on the adjusting gear 2 312, and when the telescopic rod 3241 enters the telescopic hole 1 317, the isolation groove 3121 is located below the adjusting gear 1 4, the locking block 6 includes a pressure portion 61 and a locking portion 62, the locking portion 62 is rotatably connected to the pressure portion 61, the pressure portion 61 is slidably connected to the static shaft 31, and a spring 1 611 is provided between the pressure portion 61 and the static shaft 31.

[0041] See also Figures 1 to 11When the pressure sensor on the static scroll 11 is subjected to a pressure less than the set value, the motor 2 is started to reverse. At this time, the motor 2 drives the moving shaft 32 to rotate around the static shaft 31. The adjusting gear 1 4 and the reinforcement gear 52 on the moving shaft 32 rotate around the adjusting gear 2 312 and the control gear 313 respectively. Since the control gear 313 and the adjusting gear 2 312 are both fixedly connected to the hollow rod 311, and a one-way bearing 2 314 is provided between the hollow rod 311 and the static shaft 31, the control gear 313 and the adjusting gear 2 312 cannot rotate. Therefore, the control gear 313 drives the reinforcement gear 52 to rotate. Since the adjusting gear 2 312 is provided with an isolation groove 3121, the adjusting gear 1 4 and the adjusting gear 2 312 are not yet meshed at this time. When the reinforcing gear 52 rotates, the reinforcing rod 5 on the reinforcing gear 52 moves downward, and the reinforcing block 51 on the reinforcing rod 5 moves downward together with the reinforcing rod 5. At this time, the reinforcing block 51 is away from the inner wall of the reinforcing groove 3233 and no longer applies pressure to the adjusting rod 323. During the rotation of the moving shaft 32, the telescopic rod 3241 on the moving shaft 32 rotates with the moving shaft 32. At this time, one side of the telescopic rod 3241 is subjected to pressure from the inner wall of the telescopic hole 1 317, and the telescopic rod 3241 squeezes the telescopic hole 2 32 4, and the spring 2 3242 inside it retreats into the telescopic hole 1 317. At this time, the locking block 6 loses the support of the telescopic rod 3241 and falls down. The protrusion 621 on the locking portion 62 cooperates with the ratchet 316 on the hollow rod 311 to prevent the hollow rod 311 from rotating, thereby making the control gear 313 unable to rotate. When the adjusting rod 323 is completely unlocked, the adjusting gear 1 4 rotates with the moving shaft 32 and meshes with the adjusting gear 2 312. At this time, the moving shaft 32 continues to rotate, and the adjusting gear 2 312 drives the adjusting gear 1 4 to rotate. Since a one-way bearing 1 42 is provided between the adjusting gear 1 4 and the rotating rod 41, at this time The adjusting gear 14 cannot rotate relative to the rotating rod 41, so the adjusting gear 14 will drive the rotating rod 41 to rotate together, and because the limit block 3222 in the adjusting chamber 322 contacts the limit groove 3234 on the adjusting rod 323, the thread 1 411 contacts the thread 2 3232, and the rotating rod 41 rotates, which will drive the adjusting rod 323 to move toward the outside of the rotating shaft 3. At this time, the adjusting rod 323 will drive the movable scroll 321 to move. At this time, when the pressure sensor on the fixed scroll 11 detects that the pressure from the movable scroll 321 reaches the set value range, the motor 2 stops rotating, and the adjustment of the movable scroll 321 is completed.

[0042] See also Figures 1 to 11After completing the adjustment of the movable scroll 321, the motor 2 is started to rotate forward. At this time, the movable shaft 32 rotates around the static shaft 31 through the drive of the motor 2. Since the locking block 6 locks the control gear 313, the control gear 313 cannot rotate at this time, so the control gear 313 will drive the reinforcement gear 52 to rotate. When the reinforcement gear 52 rotates, the reinforcement rod 5 on the reinforcement gear 52 moves upward, and the reinforcement block 51 on the reinforcement rod 5 moves upward with the reinforcement rod 5. At this time, the reinforcement block 51 is close to the inner wall of the reinforcement groove 3233 and applies pressure to the adjusting rod 323. During the rotation of the movable shaft 32, since a one-way bearing 42 is provided between the adjusting gear 4 and the rotating rod 41, the adjusting gear 4 The rotating rod 41 will not be driven to rotate. During the rotation of the moving shaft 32, the telescopic rod 3241 on the moving shaft 32 rotates with the moving shaft 32. When the telescopic rod 3241 reaches the position of the telescopic hole 1 317, the spring 2 3242 inside the telescopic hole 2 324 will push the telescopic rod 3241 into the telescopic hole 1 317. At this time, the locking block 6 is supported and lifted by the telescopic rod 3241, and the locking block 6 no longer locks the hollow rod 311. At this time, the control gear 313 no longer drives the reinforcement gear 52 to rotate, and the reinforcement gear 52 drives the hollow rod 311 to rotate by meshing with the control gear 313. At this time, the adjusting gear 1 4 returns to the isolation groove 3121, and the vortex test air compressor operates normally.

[0043] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A scroll air compressor, comprising a housing (1) and a motor (2), wherein the motor (2) is coaxially fixedly connected to the inside of the housing (1), a rotating shaft (3) is connected to the output end of the motor (2), a movable scroll (321) is rotatably connected to the rotating shaft (3), and a fixed scroll (11) is also fixedly connected to the inside of the housing (1), characterized in that: The rotating shaft (3) comprises a stationary shaft (31) and a moving shaft (32); the stationary shaft (31) is fixedly connected to the housing (1); the moving shaft (32) is fixedly connected to the output end of the motor (2); an adjusting chamber (322) is provided on the moving shaft (32); an adjusting rod (323) is slidably connected in the adjusting chamber (322); a displacement hole (3221) is also provided on the housing (1); one end of the adjusting rod (323) extends through the displacement hole (3221) to the outside of the rotating shaft (3) and is rotatably connected to the moving scroll (321); a transmission assembly is also provided inside the rotating shaft (3); a pressure sensor is provided on the stationary scroll (11); the pressure sensor is electrically connected to the motor (2); when the motor (2) rotates in reverse, the transmission assembly drives the adjusting rod (323) to move along the adjusting chamber (322) toward the outside of the rotating shaft (3).

2. A scroll air compressor according to claim 1, characterized in that: The transmission assembly comprises an adjusting gear (4), a rotating rod (41) is arranged on the adjusting gear (4), a one-way bearing (42) is arranged between the adjusting gear (4) and the rotating rod (41), a thread (411) is provided on the rotating rod (41), a rotating hole (3231) is provided on the adjusting rod (323), a thread (3232) is provided on the inner wall of the rotating hole (3231), the rotating rod (41) is rotatably connected to the moving shaft (32), the rotating rod (41) extends into the rotating hole (3231), and the thread (411) is provided on the rotating rod (41). (411) contacts with the second thread (3232), the stationary shaft (31) is provided with a hollow rod (311), the hollow rod (311) and the rotating shaft (3) are provided with a second one-way bearing (314), the second adjusting gear (312) is fixedly connected to the hollow rod (311), the first adjusting gear (4) is meshed with the second adjusting gear (312), the first one-way bearing (42) is used to limit the rotation of the first adjusting gear (4) in the adjustment direction of the rotating rod (41), and the second one-way bearing (314) is used to limit the rotation of the hollow rod (311) in the reverse direction of the motor (2).

3. A scroll air compressor according to claim 2, characterized in that: The adjusting rod (323) is provided with a reinforcement groove (3233); a reinforcement rod (5) is rotatably connected inside the movable shaft (32); the reinforcement rod (5) is threadedly connected to the movable shaft (32); the reinforcement rod (5) extends into the reinforcement groove (3233); one end of the reinforcement rod (5) is rotatably connected to a reinforcement block (51); the reinforcement block (51) contacts the inner wall of the reinforcement groove (3233); the other end of the reinforcement rod (5) is fixedly connected to a reinforcement gear (52); a control gear (313) is fixedly connected to the hollow rod (311); the control gear (313) and the reinforcement gear (52) are meshed with each other; a locking assembly is also provided inside the rotating shaft (3); when the motor (2) rotates in the reverse direction, the locking assembly limits the rotation of the hollow rod (311).

4. A scroll air compressor according to claim 3, characterized in that: The locking assembly comprises a locking block (6), the locking block (6) is slidably connected to the static shaft (31), the hollow rod (311) is provided with a locking groove (315), a ratchet (316) is provided in the locking groove (315), a plurality of protrusions (621) are provided on the locking block (6), the plurality of protrusions (621) are in contact with the ratchet (316), the hollow rod (311) is further provided with a telescopic hole (317), the movable shaft (311) is provided with a locking groove (315), and a ratchet (316) is provided in the locking groove (315). 2) is provided with a second telescopic hole (324), a telescopic rod (3241) is slidably connected in the second telescopic hole (324), one end of the telescopic rod (3241) extends out of the second telescopic hole (324) and contacts the locking block (6) through the first telescopic hole (317), a second spring (3242) is provided between the telescopic rod (3241) and the static shaft (31), and an arc surface is provided on the telescopic rod (3241), and the arc surface is located in the reverse direction of the motor (2).

5. A scroll air compressor according to claim 4, characterized in that: The second adjusting gear (312) is provided with an isolation groove (3121), and when the telescopic rod (3241) enters the first telescopic hole (317), the isolation groove (3121) is located below the first adjusting gear (4).

6. A scroll air compressor according to claim 5, characterized in that: The locking block (6) comprises a pressure portion (61) and a locking portion (62), wherein the locking portion (62) is rotatably connected to the pressure portion (61), the pressure portion (61) is slidably connected to the static shaft (31), and a spring 1 (611) is provided between the pressure portion (61) and the static shaft (31).

7. A scroll air compressor according to claim 2, characterized in that: The reinforcement groove (3233) is in a "V" shape, the reinforcement block (51) is in a "V" shape consistent with the reinforcement groove (3233), and the two side planes of the reinforcement block (51) are in contact with the two side inner walls of the reinforcement groove (3233).

8. The scroll air compressor according to claim 1, characterized in that: A plurality of limit blocks (3222) are arranged on the inner wall of the adjustment chamber (322), a plurality of limit grooves (3234) are opened on the adjustment rod (323), and the inner walls of the limit grooves (3234) are in contact with the surfaces of the limit blocks (3222).

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