Pneumatic vibrator

Abstract

The utility model relates to a kind of pneumatic vibrator, including the inner sleeve with cavity structure, one end of inner sleeve is coaxially installed with fixed block, and the other end between fixed block and inner sleeve is coaxially installed with the central shaft of the shaft diameter less than the inner diameter of inner sleeve, and fixed block is also equipped with the spiral strip compatible with the inner diameter of inner sleeve on it, spiral strip and inner sleeve can form spiral channel, and the clearance between spiral channel and central shaft and inner sleeve is communicated, and the impact ring that can collide with inner sleeve is sleeved on central shaft;End away from fixed block of inner sleeve is provided with exhaust hole, and inner sleeve is also provided with air inlet along the radial direction of inner sleeve and communicated with spiral channel in, compared with prior art, the utility model can be easily processed.

Description

Technical Field

[0001] This utility model belongs to the technical field of pneumatic vibration devices, and in particular relates to a pneumatic vibrator. Background Technology

[0002] A pneumatic vibrator is a vibration source that uses high-pressure gas discharged from an air compressor as a power source to generate vibration.

[0003] Among existing patents, utility model patent CN222587175U discloses a novel pneumatic vibrator. This utility model can reduce the occurrence of dust being blown up by the discharged high-pressure gas, thereby improving the working environment. However, in order to achieve air intake into the spiral channel, the aforementioned utility model patent requires a groove to be opened coaxially on the central shaft, and a first air intake hole to be opened circumferentially along the central shaft. It also requires a second air intake hole to be opened circumferentially on the fixed block, which is opposite to the position of the first air intake hole, to form an air intake channel. Since the diameter of the air intake channel is limited by the distance between the spiral strip and the end cap, multiple air intake channels need to be opened to ensure sufficient air intake. This setup is cumbersome to manufacture and not convenient to process. Therefore, the prior art still has shortcomings and deficiencies. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic vibrator to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: A pneumatic vibrator includes an inner sleeve with a cavity structure. A fixing block is coaxially mounted on one end of the inner sleeve. A central shaft with a diameter smaller than the inner diameter of the inner sleeve is coaxially mounted between the fixing block and the other end of the inner sleeve. A spiral strip adapted to the inner diameter of the inner sleeve is also fitted on the fixing block. A spiral channel can be formed between the spiral strip and the inner sleeve. The spiral channel is connected to the gap between the central shaft and the inner sleeve. An impact ring capable of colliding with the inner sleeve is fitted on the central shaft. The inner sleeve has an exhaust hole at one end away from the fixed block, and an air inlet connected to the spiral channel is also provided on the inner sleeve along the radial direction of the inner sleeve.

[0006] Furthermore, it also includes a housing coaxially arranged with the inner sleeve, one end of which is open and fitted onto the inner sleeve, and the other end of the housing has a gap with the inner sleeve to form an exhaust chamber, and the housing has an exhaust port opposite to the exhaust chamber. The inner sleeve is connected to the exhaust chamber through the exhaust port.

[0007] Furthermore, both the air inlet and the exhaust outlet are equipped with detachable air pipe connectors.

[0008] Furthermore, the centerline of the exhaust port is parallel to the radial direction of the housing, and the air inlet passes through the inner sleeve and the housing in sequence, with the air inlet and exhaust port located on the same side of the housing.

[0009] Furthermore, it also includes a base, the housing is mounted on the top surface of the base and is an integral structure with the base, and both ends of the base extend horizontally to the outside of the housing and are provided with mounting through holes.

[0010] Furthermore, the inner sleeve is open at one end away from the exhaust chamber and is coaxially mounted with an end cap. The fixing block is installed on the inner side of the end cap, and the end of the central shaft near the fixing block passes through the fixing block and the end cap in sequence and is connected to the end cap.

[0011] Furthermore, the inner sleeve has a receiving hole coaxially opened at one end near the exhaust chamber. The diameter of the receiving hole is larger than the diameter of the central shaft. A positioning plate adapted to the receiving hole is installed at one end of the central shaft near the receiving hole. The exhaust hole is opened on the positioning plate.

[0012] Furthermore, the number of exhaust holes is multiple, and the multiple exhaust holes are equidistantly distributed along the circumference of the positioning disk.

[0013] Furthermore, a limiting groove is coaxially formed on the end of the fixing block away from the end cover, and a limiting plate adapted to the limiting groove is fitted on the central shaft.

[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: In use, the air inlet can be connected to an air compressor via an external air inlet pipe. The high-pressure gas discharged from the air compressor can enter the spiral channel through the air inlet to form a spiral airflow. The spiral airflow can then blow the impact ring in the inner sleeve to reciprocate and collide with the inner sleeve, generating vibration. The high-pressure gas in the inner sleeve can then be discharged outward through the exhaust port. The way this invention achieves air intake into the spiral channel is by opening an air inlet along the radial direction of the inner sleeve that communicates with the spiral channel. In other words, as long as the air inlet on the inner sleeve is positioned opposite the spiral channel, air can be introduced into the spiral channel. Thus, the size of the air inlet is not limited and can be easily opened according to specific needs to ensure sufficient air intake. Compared with the prior art, this design of the invention is easier to manufacture. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is a structural schematic diagram of some of the devices of this utility model in cross-sectional view; Figure 3This is a schematic diagram of the structure of this utility model in its split state; Figure 4 This is one of the structural schematic diagrams of a portion of the device of this utility model in a split state; Figure 5 This is a schematic diagram of the structure of some of the devices of this utility model; Figure 6 This is one of the structural diagrams of some of the devices of this utility model during assembly; Figure 7 This is the second structural diagram of some of the devices of this utility model during assembly; Figure 8 This is the third structural diagram of some of the devices of this utility model during assembly; Figure 9 This is the second schematic diagram of the structure of part of the device of this utility model in the split state; Figure 10 This is the second structural schematic diagram of the present invention.

[0016] Reference numerals in the attached drawings: 1. Housing; 2. Exhaust port; 3. Inner sleeve; 4. Fixing block; 41. Limiting groove; 5. Central shaft; 6. Spiral strip; 7. End cap; 8. Base; 81. Mounting through hole; 9. Limiting plate; 10. Impact ring; 11. Air inlet; 12. Exhaust port; 13. Spiral channel; 14. Exhaust chamber; 15. Receiving hole; 16. Positioning plate; 17. Air pipe connector. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] like Figures 1 to 10 As shown, this utility model provides a pneumatic vibrator, including an inner sleeve 3 with a cavity structure. A fixing block 4 is coaxially mounted on one end of the inner sleeve 3. A central shaft 5 with a diameter smaller than the inner diameter of the inner sleeve 3 is coaxially mounted between the fixing block 4 and the other end of the inner sleeve 3, i.e., there is a gap between the central shaft 5 and the inner wall of the inner sleeve 3. Furthermore, a spiral strip 6 adapted to the inner diameter of the inner sleeve 3 is fitted on the fixing block 4. A spiral channel 13 can be formed between the spiral strip 6 and the inner sleeve 3. The spiral channel 13 and the central shaft... The gap between the central shaft 5 and the inner sleeve 3 is connected, and an impact ring 10 that can collide with the inner sleeve 3 is sleeved on the central shaft 5. Specifically, the inner diameter of the impact ring 10 is much larger than the shaft diameter of the central shaft 5. When the impact ring 10 is eccentrically set relative to the central shaft 5, the impact ring 10 can collide with the inner sleeve 3. In use, when the high-pressure gas discharged from the air compressor enters the spiral channel 13, a spiral airflow can be formed. Then, the spiral airflow can blow the impact ring 10 in the inner sleeve 3 to reciprocate and collide with the inner sleeve 3 to generate vibration.

[0019] In addition, an exhaust port 12 is provided at the end of the inner sleeve 3 away from the fixed block 4, and an air inlet 11 connected to the spiral channel 13 is also provided on the inner sleeve 3 along the radial direction of the inner sleeve 3. Specifically, the air inlet 11 can be opened arbitrarily along the circumference of the inner sleeve 3. In use, the air inlet 11 can be connected to an air compressor via an external air inlet pipe, and the high-pressure gas discharged by the air compressor can enter the spiral channel 13 through the air inlet 11 to form a spiral airflow. Then, after the spiral airflow blows the impact ring 10 and collides with the inner sleeve 3 to generate vibration, the high-pressure gas in the inner sleeve 3 can be discharged to the outside through the exhaust port 12.

[0020] The present invention achieves air intake into the spiral channel 13 by opening an air inlet 11 along the radial direction of the inner sleeve 3, which is connected to the spiral channel 13. In other words, as long as the air inlet 11 on the inner sleeve 3 is positioned opposite to the spiral channel 13, air can be introduced into the spiral channel 13. Thus, the size of the air inlet 11 is not limited and can be opened according to its own needs to ensure sufficient air intake. Compared with the prior art, this setting method of the present invention is easier to process.

[0021] Furthermore, such as Figures 1 to 3 and Figure 10 As shown, it also includes a housing 1 coaxially arranged with the inner sleeve 3. One end of the housing 1 is open and fitted onto the inner sleeve 3. Specifically, the outer diameter of the inner sleeve 3 matches the inner diameter of the housing 1. A gap exists between the other end of the housing 1 and the inner sleeve 3 to form an exhaust chamber 14, and an exhaust port 2 is provided on the housing 1 opposite to the position of the exhaust chamber 14. The inner sleeve 3 is connected to the exhaust chamber 14 through the exhaust port 12. In use, the high-pressure gas inside the inner sleeve 3 can be discharged outward sequentially through the exhaust port 12 and the exhaust port 2. In addition, the center line of the exhaust port 12 can be set parallel to the axial line of the inner sleeve 3, and the position of the exhaust port 2 can be adjusted. Similar to the method set in the existing utility model patent with patent publication number CN222587175U, specifically, the exhaust port 2 is opened at the closed end of the housing 1 and is set coaxially with the housing 1, and the exhaust hole 12 is offset from the exhaust port 2, that is, the exhaust hole 12 is located outside the circumference of the exhaust port 2. In this way, when the high-pressure gas in the inner sleeve 3 is discharged into the exhaust chamber 14 through the exhaust hole 12, it can impact the inner end face of the housing 1 for buffering, and then be discharged outward through the exhaust port 2. Thus, similar to the prior art, the speed of high-pressure gas being discharged outward can be slowed down, so as to reduce the occurrence of dust being blown up by the discharged high-pressure gas.

[0022] Furthermore, such as Figures 1 to 3 and Figure 10 As shown, both the air inlet 11 and the exhaust outlet 2 are equipped with detachable air pipe connectors 17, specifically, as follows: Figure 10As shown, the endotracheal connector 17 can be configured as a quick-connect endotracheal connector as in the prior art, which is threadedly connected to the air inlet 11 and the exhaust outlet 2; or as shown in the figure. Figure 1 or Figure 3 As shown, the air pipe connector 17 can also be configured as an external threaded pipe that can be threadedly connected to the air inlet 11 and the exhaust port 2, and a limiting block is fixedly mounted in the middle of the external threaded pipe. The limiting block can facilitate the installation of the air pipe connector 17 on the air inlet 11 and the exhaust port 2. By installing the air pipe connector 17 on the air inlet 11, it is convenient to connect an external air inlet pipe to the air inlet 11. In addition, by installing the air pipe connector 17 on the exhaust port 2, it is convenient to connect an external exhaust pipe to the exhaust port 2. In this way, when this utility model is applied in places with a lot of dust, such as construction sites and dusty workshops, the end of the exhaust pipe away from the exhaust port 2 can be installed in a position away from the dust to avoid dust dispersion and improve the working environment.

[0023] Furthermore, such as Figures 1 to 3 and Figure 10 As shown, the centerline of the exhaust port 2 is parallel to the radial direction of the housing 1. Specifically, the exhaust port 2 can be arbitrarily opened along the circumference of the housing 1. In this case, during use, when the high-pressure gas in the inner sleeve 3 is discharged into the exhaust chamber 14 through the exhaust hole 12, it can impact the inner end face of the housing 1 for buffering, and then be discharged outward through the exhaust port 2. Thus, similar to the prior art, it can also slow down the speed of the high-pressure gas being discharged outward, thereby reducing the occurrence of dust being blown up by the discharged high-pressure gas. In addition, the air inlet 11 can be made to pass through the inner sleeve 3 and the housing 1 in sequence, and the air inlet 11 and the exhaust port 2 are located on the same side of the housing 1. Specifically, the opening positions of the exhaust port 2 and the air inlet 11 are as follows. Figure 3 As shown, when this utility model is installed on equipment that requires vibration, only space needs to be reserved on the side of the housing 1 where the exhaust port 2 and the air inlet 11 are opened to allow for the installation and removal of the air pipe connector 17. Larger space does not need to be reserved on the other sides of the housing 1 for easy installation.

[0024] Furthermore, such as Figure 1 , Figure 3 and Figure 10 As shown, it also includes a base 8. Specifically, in use, this utility model can be installed on the equipment that needs vibration via the base 8 and used as a vibration source. The housing 1 is installed on the top surface of the base 8 and is an integral structure with the base 8 to ensure the connection strength between the housing 1 and the base 8. In addition, during processing, the housing 1 and the base 8 can also be processed together by casting. Furthermore, both ends of the base 8 extend horizontally to the outside of the housing 1 and are provided with mounting through holes 81. In this way, in use, it is convenient to use bolts or other connecting parts to install this utility model on the equipment that needs vibration after passing through the mounting through holes 81.

[0025] Furthermore, such as Figures 1 to 4 as well as Figures 7 to 9 As shown, the inner sleeve 3 is open at one end away from the exhaust chamber 14 and is coaxially mounted with an end cap 7. The fixing block 4 is installed on the inner side of the end cap 7. The end of the central shaft 5 near the fixing block 4 passes through the fixing block 4 and the end cap 7 in sequence and is connected to the end cap 7. Specifically, during assembly, after the impact ring 10 is sleeved on the central shaft 5, the end of the central shaft 5 away from the fixing block 4 can be assembled with the inner sleeve 3 first. Then, the fixing block 4 and the end cap 7 are sleeved together on the central shaft 5. When they are in place, the central shaft 5 is assembled and fixed with the end cap 7 in sequence, and the end cap 7 is assembled and fixed with the inner sleeve 3. Finally, the inner sleeve 3 is inserted into the housing 1 and then assembled and fixed with the housing 1, which facilitates the assembly operation.

[0026] Furthermore, such as Figures 2 to 7 and Figure 9 As shown, the inner sleeve 3 has a receiving hole 15 coaxially opened at one end near the exhaust chamber 14. The diameter of the receiving hole 15 is larger than the shaft diameter of the central shaft 5. A positioning plate 16 adapted to the receiving hole 15 is installed at one end of the central shaft 5 near the receiving hole 15. At this time, during assembly, after installing the impact ring 10, the end of the central shaft 5 near the fixing block 4 can be inserted through the fixing block 4 and the end cover 7 in sequence and then assembled and fixed with the end cover 7. Then, the central shaft 5, the fixing block 4 and the end cover 7 are inserted into the inner sleeve 3 together until the positioning plate 16 is located in the receiving hole 15. Then the end cover 7 can be installed in place. Then, the end cover 7 is assembled and fixed with the inner sleeve 3, and the assembly and fixing of the inner sleeve 3 and the housing 1 are completed, which makes the assembly operation easier. In addition, the exhaust hole 12 is opened on the positioning plate 16 to facilitate the processing of the exhaust hole 12.

[0027] Furthermore, such as Figures 2 to 4 , Figure 6 , Figure 7 and Figure 9 As shown, there are multiple exhaust holes 12, and the multiple exhaust holes 12 are equidistantly distributed along the circumference of the positioning plate 16, which facilitates exhaust.

[0028] Furthermore, such as Figures 2 to 4 and Figure 9 As shown, a limiting groove 41 is coaxially formed on the end of the fixing block 4 away from the end cover 7, and a limiting plate 9 that matches the limiting groove 41 is fitted on the central shaft 5. In this way, the relative position between the fixing block 4 and the central shaft 5 can be easily determined during assembly, so as to facilitate assembly.

[0029] 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 illustrative of the principles of this 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 pneumatic vibrator comprising an inner sleeve having a cavity structure, characterized by: A fixing block is coaxially installed at one end of the inner sleeve. A central shaft with a diameter smaller than the inner diameter of the inner sleeve is coaxially installed between the fixing block and the other end of the inner sleeve. A spiral strip that matches the inner diameter of the inner sleeve is also fitted on the fixing block. A spiral channel can be formed between the spiral strip and the inner sleeve. The spiral channel is connected to the gap between the central shaft and the inner sleeve. An impact ring that can collide with the inner sleeve is fitted on the central shaft. The inner sleeve has an exhaust hole at the end away from the fixed block, and an air inlet connected to the spiral channel is also provided on the inner sleeve along the radial direction of the inner sleeve.

2. A pneumatic vibrator according to claim 1, characterized in that: It also includes a housing coaxially arranged with the inner sleeve, one end of which is open and fitted onto the inner sleeve, and the other end of the housing has a gap with the inner sleeve to form an exhaust chamber, and the housing has an exhaust port opposite to the exhaust chamber. The inner sleeve is connected to the exhaust chamber through the exhaust port.

3. A pneumatic vibrator according to claim 2, characterized in that: Both the air inlet and the air outlet are equipped with detachable air pipe connectors.

4. A pneumatic vibrator according to claim 2 or 3, characterized in that: The centerline of the exhaust port is parallel to the radial direction of the housing, and the air inlet passes through the inner sleeve and the housing in sequence, with the air inlet and exhaust port located on the same side of the housing.

5. A pneumatic vibrator according to claim 2, characterized in that: It also includes a base, the housing is mounted on the top surface of the base and is an integral structure with the base, and both ends of the base extend horizontally to the outside of the housing and are provided with mounting through holes.

6. A pneumatic vibrator according to claim 2, characterized in that: The inner sleeve is open at one end away from the exhaust chamber and is coaxially mounted with an end cap. The fixing block is installed on the inner side of the end cap. The end of the central shaft near the fixing block passes through the fixing block and the end cap in sequence and is connected to the end cap.

7. A pneumatic vibrator according to claim 6, wherein: The inner sleeve has a receiving hole coaxially opened at one end near the exhaust chamber. The diameter of the receiving hole is larger than the diameter of the central shaft. A positioning plate adapted to the receiving hole is installed at one end of the central shaft near the receiving hole. The exhaust hole is opened on the positioning plate.

8. A pneumatic vibrator according to claim 7, wherein: The number of exhaust holes is multiple, and the multiple exhaust holes are equidistantly distributed along the circumference of the positioning plate.

9. A pneumatic vibrator according to claim 6 or 7, characterized in that: A limiting groove is coaxially formed on one end of the fixed block away from the end cover, and a limiting plate adapted to the limiting groove is fitted on the central shaft.

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