Air control type screw air compressor transport self-locking device

Abstract

The embodiment of the application provides a pneumatic screw air compressor transportation self-locking device, which comprises an executing mechanism and a driving mechanism, the executing mechanism is fixedly installed on the base of the screw air compressor, and the driving mechanism comprises a single-acting cylinder, the single-acting cylinder is fixedly installed on the base of the screw air compressor and is in transmission connection with the executing mechanism; the single-acting cylinder uses the compressed gas discharged from the screw air compressor as a driving gas source, can drive the executing mechanism to reciprocally switch between a locked state of being tightly connected with the driving system of the screw air compressor and a loosened state of not interfering with the driving system, can automatically rigidly connect the driving system of the screw air compressor with the base when the screw air compressor is stopped, ensures that the vibration isolator of the screw air compressor is not damaged in the transportation process, can automatically disconnect the rigid connection between the driving system and the base when the screw air compressor is powered on, makes the vibration isolator fully play a vibration isolation role, and has the advantages of simple structure, economy and effective avoidance of equipment damage caused by human error operation.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to a pneumatically controlled screw air compressor transport self-locking device based on the magnetic control principle. Background Technology

[0002] Currently, most screw air compressors in China use rubber vibration isolators as the connection between the drive system and the base. This device, through the material's inherent high elasticity and viscoelasticity, effectively absorbs the mechanical vibration energy generated during compressor operation, reducing the vibration energy transmitted from the drive system to the base. However, during air compressor transportation, when encountering bumpy roads or inclined conditions, the vibration isolator may undergo plastic deformation due to continuous vibration or sudden external forces, leading to mechanical collisions in the air compressor's drive system.

[0003] To avoid this situation, a rigid transport bracket is typically installed on the air compressor base. This bracket needs to be manually tightened during transport to rigidly connect the drive system and the base. This way, under bumpy or tilted transport conditions, the transport bracket can counteract lateral forces, prevent shear stress at the connection between the vibration isolator and the equipment, and avoid rubber layer peeling or metal parts loosening. On the other hand, before the air compressor is powered on for normal operation, the fastening bolts on one side of the transport bracket need to be manually loosened to release the rigid connection between the drive system and the base, allowing the rubber vibration isolator to perform its vibration isolation function. However, in actual operation, users may forget to tighten or loosen the transport bracket in certain situations. In cases of misoperation, prolonged operation of the air compressor may cause unavoidable damage. Utility Model Content

[0004] In view of this, embodiments of the present invention provide a pneumatically controlled screw air compressor transport self-locking device to solve the technical problem that manually operated transport supports are prone to damage to the air compressor due to human error.

[0005] This utility model provides a pneumatically controlled screw air compressor transport self-locking device, comprising: The actuator is fixedly installed on the base of the screw air compressor and has a locked state that is securely connected to the drive system of the screw air compressor and a loosened state that does not interfere with the drive system of the screw air compressor. The drive mechanism includes a single-acting cylinder, which is fixedly installed on the base of the screw air compressor and is connected to the actuator for transmission, so as to drive the actuator to reciprocate between the locked state and the released state; The single-acting cylinder uses the compressed gas discharged from the screw air compressor as the driving air source; when the single-acting cylinder is in the initial state, the actuator is in the locked state; when the piston rod of the single-acting cylinder extends under the action of the driving air source, the actuator switches to the released state under the drive of the single-acting cylinder.

[0006] Optionally, the actuator includes a magnetic base and a magnetic rod. The magnetic base has a through hole along its length. The magnetic rod is rotatably inserted into the mounting hole. The single-acting cylinder is connected to the magnetic rod for driving the magnetic rod to rotate. The magnetic base includes two electrical soft iron pieces symmetrically arranged along its height direction. A semi-circular groove is opened in the middle of the opposite side of the two electrical soft iron pieces. The two semi-circular grooves surround the mounting hole, and a first brass plate is pressed between the electrical soft iron pieces on both sides of the mounting hole. One side of the magnetic base in the width direction is in contact with the drive system of the screw air compressor. The magnetic rod is made of permanent magnet material, and an elongated strip-shaped protrusion extending radially from the end of the magnetic rod is formed thereon.

[0007] Optionally, a V-shaped groove extending along the length of the magnetic base is provided on the side of the magnetic base that is in contact with the drive system of the screw air compressor. The opening of the V-shaped groove faces the drive system of the screw air compressor, and the two side walls of the V-shaped groove extend from the first brass plate to the two pieces of electrical soft iron, respectively.

[0008] Optionally, the end of the magnet base away from the single-acting cylinder is provided with an end cap.

[0009] Optionally, the drive mechanism further includes a rack, a gear, a rotating shaft, and a rotating handle; the rack is fixedly connected to the piston rod of the single-acting cylinder, the gear is fixedly sleeved on the rotating shaft and meshes with the rack for transmission, the rotating handle is fixedly disposed at the end of the rotating shaft, and a groove is provided on the rotating handle to engage with the boss.

[0010] Optionally, a mounting base is fixedly provided on the base of the screw air compressor. The mounting base includes a base plate fixedly connected to the base of the screw air compressor and a top plate spaced above the base plate. The single-acting cylinder is vertically fixed on the base plate, and the rack is movably connected to the piston rod of the single-acting cylinder through the top plate. The magnetic base is horizontally installed on the top plate, and the magnetic rod is connected to the rack through the handle, the shaft, and the gear.

[0011] Optionally, the top of the magnetic base is provided with a pressure plate, and the pressure plate has a guide hole through which the rack moves.

[0012] Optionally, a second brass plate is provided between the magnetic base and the mounting base, and between the magnetic base and the pressure plate.

[0013] The present invention has the following advantages: The compressed gas discharged from the screw air compressor is used as the driving air source for a single-acting cylinder. The single-acting cylinder drives the actuator to connect or disconnect from the screw air compressor's drive system. This allows the screw air compressor's drive system to be automatically rigidly connected to the base when the compressor is stopped, ensuring that the compressor's vibration isolator is not damaged during transportation. Furthermore, it allows the rigid connection between the drive system and the base to be automatically disconnected when the compressor is powered on, enabling the vibration isolator to fully perform its vibration isolation function. The structure is simple and economical, and it effectively avoids equipment damage caused by human error. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of the locked state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure in the released state according to an embodiment of the present invention; Figure 3 This is an exploded structural diagram of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the actuator in the locked state in an embodiment of the present invention; Figure 5 This is a schematic diagram of the actuator in the released state in an embodiment of the present invention; The numbers in the diagram represent: 1. Implementing agency; 11. Magnetic base; 111. Electrical soft iron; 112. First brass plate; 113. V-groove; 12. Magnetic rod; 121. Boss; 13. Mounting hole; 14. End cap; 2. Drive mechanism; 21. Single-acting cylinder; 22. Rack; 23. Gear; 24. Shaft; 25. Handle; 3. Drive system; 4. Mounting base; 5. Pressure plate; 6. Second brass plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, it should be understood that the terms "middle", "vertical", "lateral", "length", "width", "height", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0018] Please see Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a pneumatically controlled screw air compressor transport self-locking device, including an actuator 1 and a drive mechanism 2. The actuator 1 is fixedly installed on the base of the screw air compressor (not shown in the figure) and has a locked state that is securely connected to the drive system 3 of the screw air compressor and a loosened state that does not interfere with the drive system 3 of the screw air compressor.

[0019] The drive mechanism 2 includes a single-acting cylinder 21, which is fixedly installed on the base of the screw air compressor and connected to the actuator 1 for transmission, so as to drive the actuator 1 to switch back and forth between the above-mentioned locked state and the released state.

[0020] The single-acting cylinder 21 uses the compressed gas discharged from the screw air compressor as its driving air source. When the screw air compressor is stopped, the single-acting cylinder 21 is in its initial state, and the actuator 1 is in the locked state, thus rigidly connecting the screw air compressor's drive system 3 to the base, ensuring that the screw air compressor's vibration isolator is not damaged during transportation. When the screw air compressor is running, the piston rod of the single-acting cylinder 21 can extend under the action of the driving air source, and the actuator 1 switches to the released state under the drive of the single-acting cylinder 21, thereby automatically disconnecting the rigid connection between the screw air compressor's drive system 3 and the base, allowing the vibration isolator to fully perform its vibration isolation function.

[0021] Specifically, such as Figures 3-5As shown, the actuator 1 in this embodiment of the present invention includes a magnetic base 11 and a magnetic rod 12. The magnetic base 11 has a through-hole 13 along its length, and the magnetic rod 12 is rotatably inserted into the mounting hole 13. A single-acting cylinder 21 is connected to the magnetic rod 12 for driving its rotation. Furthermore, an end cap 14 is provided at the end of the magnetic base 11 away from the single-acting cylinder 21, which restricts the movement of the magnetic rod 12 along the mounting hole 13.

[0022] The magnetic base 11 includes two electrically conductive soft iron pieces 111 symmetrically arranged along its height direction. A semi-circular groove is formed in the center of each of the two electrically conductive soft iron pieces 111 on opposite sides, and the two semi-circular grooves together form a mounting hole 13. A first brass plate 112 is pressed between the electrically conductive soft iron pieces 111 on both sides of the mounting hole 13 to isolate the magnetic circuit between the two electrically conductive soft iron pieces 111. One side of the magnetic base 11 in the width direction is in contact with the drive system 3 of the screw air compressor.

[0023] The magnetic rod 12 is made of permanent magnet material. An elongated, radially extending protrusion 121 is formed at the end of the magnetic rod 12. The protrusion 121 disrupts the original circular arc magnetic pole symmetry, causing magnetic concentration in the circular arc edge region of the magnetic rod 12. The magnetic rod 12 has two working positions, such as... Figure 4 As shown, when the magnetic rod 12 rotates to the point where the boss 121 is perpendicular to the first brass plate 112, under the magnetic action of the magnetic rod 12, the two pieces of electrical soft iron 111 are magnetized. Their magnetic circuit will then close with the drive system 3 of the screw air compressor through the contact surface on the side of the magnetic base 11, thereby magnetically fixing the magnetic base 11 to the drive system 3. Figure 5 As shown, when the magnetic rod 12 rotates to the point where the boss 121 is parallel to the first brass plate 112, its magnetic field lines will close inside the two pieces of electrical soft iron 111, thereby causing the contact surface on the side of the magnetic base 11 to lose its magnetism and not be able to attract the drive system 3. At this time, the magnetic base 11 and the drive system 3 do not interfere with each other.

[0024] Furthermore, a V-shaped groove 113 extending along the length of the magnetic base 11 is provided on the side of the magnetic base 11 that is in contact with the drive system 3 of the screw air compressor (i.e., the aforementioned contact surface). The opening of the V-shaped groove 113 faces the drive system 3, and the two side walls of the V-shaped groove 113 extend from the first brass plate 112 to two pieces of electrical soft iron 111, so that the magnetic base 11 and the drive system 3 have a narrower contact area, which facilitates magnetic accumulation.

[0025] Specifically, such as Figures 1-3As shown, the drive mechanism 2 in this embodiment of the present invention further includes a rack 22, a gear 23, a rotating shaft 24, and a handle 25. The rack 22 is fixedly connected to the piston rod of the single-acting cylinder 21. The gear 23 is fixedly sleeved on the rotating shaft 24 and meshes with the rack 22 for transmission. The handle 25 is fixedly disposed at the end of the rotating shaft 24, and a groove is provided on the handle 25 to engage with the boss 121 of the magnetic rod 12. When the piston rod of the single-acting cylinder 21 extends or retracts, the rack 22, gear 23, rotating shaft 24, and handle 25 drive the magnetic rod 12 to reciprocate.

[0026] A mounting base 4 is fixedly installed on the base of the screw air compressor. The mounting base 4 includes a base plate fixedly connected to the base of the screw air compressor and a top plate spaced above the base plate. A single-acting cylinder 21 is vertically fixed on the base plate of the mounting base 4, and a rack 22 is movably connected to the piston rod of the single-acting cylinder 21 through the top plate of the mounting base 4. A magnetic base 11 is horizontally installed on the top plate of the mounting base 4 so that the magnetic rod 12 is connected to the rack 22 through a handle 25, a shaft 24, and a gear 23.

[0027] Furthermore, a pressure plate 5 can be provided on the top of the magnetic base 11. The pressure plate 5 has a guide hole for the rack 22 to move through, so as to guide the movement of the rack 22. A second brass plate 6 is provided between the magnetic base 11 and the mounting base 4, and between the magnetic base 11 and the pressure plate 5, to isolate the magnetic circuits on the upper and lower sides of the magnetic base 11.

[0028] The specific work process is as follows: like Figure 1 , Figure 4 As shown, when the screw air compressor is not working, the single-acting cylinder 21 is in the initial state. At this time, the boss 121 of the magnetic rod 12 is perpendicular to the first brass plate 112. Under the magnetic action of the magnetic rod 12, the two pieces of electrical soft iron 111 are magnetized. Their magnetic circuit will close with the drive system 3 of the screw air compressor through the contact surface on the side of the magnetic base 11, so that the magnetic base 11 and the drive system 3 are magnetically fixed. The base of the screw air compressor and the drive system 3 will be rigidly connected under the action of this embodiment.

[0029] like Figure 2 , Figure 5As shown, when the screw air compressor is powered on, the main exhaust pressure of the screw air compressor gradually increases from zero. When this pressure exceeds the operating pressure of the single-acting cylinder 21, the piston rod of the single-acting cylinder 21 extends and drives the magnetic rod 12 to rotate 90° through the rack 22, gear 23, rotating shaft 24 and rotating handle 25. At this time, the boss 121 at the end of the magnetic rod 12 is parallel to the first brass plate 112, and its magnetic field lines will close inside the two electrical soft iron 111, thereby causing the contact surface on the side of the magnetic base 11 to lose its magnetism and no longer attract the drive system 3. This disconnects the rigid connection between the base of the screw air compressor and the drive system 3, allowing the vibration isolator to resume normal operation.

[0030] When the screw air compressor is unloaded and stopped, the main exhaust pressure of the screw air compressor gradually decreases to zero. When this pressure is lower than the spring return force of the single-acting cylinder 21, the piston rod of the single-acting cylinder 21 will retract to the initial state and drive the magnetic rod 12 to rotate synchronously in reverse through the rack 22, gear 23, rotating shaft 24 and rotating handle 25, so that the boss 121 at the end of the magnetic rod 12 returns to the direction perpendicular to the first brass plate 112, thus completing the device reset.

[0031] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pneumatically controlled screw air compressor transport self-locking device, characterized in that, include: The actuator is fixedly installed on the base of the screw air compressor and has a locked state that is securely connected to the drive system of the screw air compressor and a loosened state that does not interfere with the drive system of the screw air compressor. The drive mechanism includes a single-acting cylinder, which is fixedly installed on the base of the screw air compressor and is connected to the actuator for transmission, so as to drive the actuator to reciprocate between the locked state and the released state; The single-acting cylinder uses the compressed gas discharged from the screw air compressor as the driving air source; when the single-acting cylinder is in the initial state, the actuator is in the locked state; When the piston rod of the single-acting cylinder extends under the action of the driving air source, the actuator switches to the released state under the drive of the single-acting cylinder.

2. The pneumatically controlled screw air compressor transport self-locking device according to claim 1, characterized in that: The actuator includes a magnetic base and a magnetic rod. The magnetic base has a through hole along its length. The magnetic rod is rotatably inserted into the mounting hole. The single-acting cylinder is connected to the magnetic rod for driving the magnetic rod to rotate. The magnetic base includes two electrical soft iron pieces symmetrically arranged along its height direction. A semi-circular groove is opened in the middle of the opposite side of the two electrical soft iron pieces. The two semi-circular grooves surround the mounting hole, and a first brass plate is pressed between the electrical soft iron pieces on both sides of the mounting hole. One side of the magnetic base in the width direction is in contact with the drive system of the screw air compressor. The magnetic rod is made of permanent magnet material, and an elongated strip-shaped protrusion extending radially from the end of the magnetic rod is formed thereon.

3. The pneumatically controlled screw air compressor transport self-locking device according to claim 2, characterized in that: The magnetic base has a V-shaped groove extending along the length of the magnetic base on the side that is in contact with the drive system of the screw air compressor. The opening of the V-shaped groove faces the drive system of the screw air compressor. The two side walls of the V-shaped groove extend from the first brass plate to the two pieces of electrical soft iron.

4. The pneumatically controlled screw air compressor transport self-locking device according to claim 2, characterized in that: The end of the magnet base away from the single-acting cylinder is provided with an end cap.

5. A pneumatically controlled screw air compressor transport self-locking device according to claim 2, characterized in that: The drive mechanism further includes a rack, a gear, a rotating shaft, and a rotating handle; the rack is fixedly connected to the piston rod of the single-acting cylinder, the gear is fixedly sleeved on the rotating shaft and meshes with the rack for transmission, and the rotating handle is fixedly disposed at the end of the rotating shaft, and a groove is provided on the rotating handle to engage with the boss.

6. The pneumatically controlled screw air compressor transport self-locking device according to claim 5, characterized in that: A mounting base is fixedly installed on the base of the screw air compressor. The mounting base includes a base plate fixedly connected to the base of the screw air compressor and a top plate spaced above the base plate. The single-acting cylinder is vertically fixed on the base plate, and the rack is movably connected to the piston rod of the single-acting cylinder through the top plate. The magnetic base is horizontally installed on the top plate, and the magnetic rod is connected to the rack through the handle, the shaft, and the gear.

7. A pneumatically controlled screw air compressor transport self-locking device according to claim 6, characterized in that: The top of the magnetic base is provided with a pressure plate, and the pressure plate has a guide hole for the rack to move through.

8. A pneumatically controlled screw air compressor transport self-locking device according to claim 7, characterized in that: A second brass plate is provided between the magnetic base and the mounting base, and between the magnetic base and the pressure plate.

Images