Air inlet filtering device of vehicle-mounted pumping equipment

Abstract

The utility model relates to an air inlet filtering device of vehicle-mounted pumping equipment, and belongs to the technical field of air filtering. The middle shaft mainly comprises a middle shaft shell, a filter screen, filter cotton, a filter element pipe sleeve and a quick-connection plug with innovative design. The quick-connection plug is composed of a pipe fitting connecting assembly and a disassembly and assembly assembly, can achieve quick insertion connection and clamping connection fixation with a filter device pipe joint, and is convenient to disassemble and separate. By arranging the quick-connection plug, the disassembly and assembly process of the filtering device is greatly simplified, and a user can quickly replace or clean a filtering part, so that the usability and the maintenance efficiency of equipment are improved. In addition, by integrating multiple filtering structures, the device ensures that sucked air is efficiently filtered, normal operation of the vehicle-mounted pumping equipment is effectively protected, and the service life of the vehicle-mounted pumping equipment is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of gas filtration, and in particular to an air inlet filtration device for a vehicle-mounted pumping equipment. Background Art

[0002] In the field of vehicle-mounted pumping equipment, the performance of the air inlet filter is crucial to the proper operation of the equipment. This filter must effectively filter impurities from the air or gas entering the pumping equipment to ensure equipment stability and extend its service life. With technological advancements, the four filter systems used in vehicle-mounted pumping equipment are constantly being improved and optimized to adapt to increasingly complex and changing operating environments.

[0003] Currently, there are several air inlet filtration devices on the market for vehicle-mounted pumping equipment. These devices typically utilize multiple filter structures to enhance filtration effectiveness. For example, some filter devices include basic components such as a filter screen and filter pads to filter impurities of varying particle sizes. However, these devices still require improvement in terms of ease and robustness regarding installation, disassembly, and piping connections.

[0004] Specifically, existing air inlet filtration devices for vehicle-mounted pumping equipment often use traditional threaded or flanged connections for pipe connections. This is not only cumbersome to operate, but the reliability of the connection is easily affected by the installer's skill level. Furthermore, in scenarios requiring frequent disassembly and installation, this connection method can significantly reduce work efficiency and increase maintenance costs. Therefore, developing an air inlet filtration device for vehicle-mounted pumping equipment that combines excellent filtering performance with fast, stable connection capabilities has become a pressing technical challenge in the industry. Summary of the Invention

[0005] In order to solve the problems in the background technology, the present application provides an air inlet filtering device for a vehicle-mounted pumping equipment.

[0006] The present application provides an air inlet filter device for a vehicle-mounted pumping device, which adopts the following technical solution:

[0007] An air inlet filter device for vehicle-mounted pumping equipment includes a housing, a filter screen, filter cotton, a filter element pipe sleeve and a quick-connect plug; the quick-connect plug is composed of a pipe connecting assembly and a disassembly assembly, the pipe connecting assembly is plugged into the pipe joint of the filter device to connect the pipeline, the clamping part of the disassembly assembly is clamped into the pipe joint of the filter device to fix the pipeline and the filter device, and when disassembling, the separation mechanism of the disassembly assembly separates the connection between the clamping part and the pipe joint of the filter device, separating the plug-in connection between the pipe connecting assembly and the pipe joint of the filter device.

[0008] Preferably, the clamping portion is an elastic clamping claw, which is arranged along the circumference of the quick-connect plug. Multiple clamping claws can improve the clamping stability.

[0009] Preferably, one end of the elastic claw is provided with an inclined surface to facilitate installation and to guide the elastic claw to bounce up.

[0010] Preferably, the separation mechanism includes a rotating ring and an ejection inclined surface, and the rotating ring is rotatably connected to the quick-connect plug.

[0011] Preferably, the separation mechanism further comprises a locking sleeve which is sleeved on the outer peripheral surface of the quick-connect plug. The locking sleeve slides along the outer peripheral surface of the quick-connect plug and can slide to lock the engagement state, making it difficult to disengage under external force.

[0012] Preferably, a keyway is provided on the inner circumference of the locking sleeve, and a sliding key is provided on the outer circumference of the rotating ring. The locking sleeve drives the rotating ring to rotate, and the locking sleeve is used to rotate the rotating ring in the unlocked state.

[0013] Preferably, the outer peripheral surface of the locking sleeve is provided with anti-slip grooves to improve the hand-holding stability and prevent the locking sleeve from being unable to rotate due to slipping.

[0014] Preferably, the locking sleeve is further provided with a positioning protrusion, and the quick-connect plug is provided with a groove, and the protrusion and the groove match to position the locking sleeve in the locked and unlocked states.

[0015] Preferably, the central axis shell is provided with a magnetic sticker to facilitate the placement of the air inlet.

[0016] To sum up, the present application includes at least one of the following beneficial technical effects: by setting up a unique quick-connect plug design, the filtering device greatly simplifies the disassembly and assembly process, thereby facilitating users to quickly replace or clean the filtering components when needed, improving the usability and maintenance efficiency of the equipment, and is particularly suitable for time-sensitive occasions such as emergency rescue; through multiple filtering structures, efficient filtration of the inhaled air is ensured, effectively protecting the normal operation of the vehicle-mounted pumping equipment and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall schematic diagram of the filtration device;

[0018] Figure 2 is a front cross-sectional view of the filter device;

[0019] Figure 3 This is an exploded diagram of the quick-connect plug;

[0020] Figure 4 This is a schematic diagram of the quick-connect plug rotating ring installation status;

[0021] Figure 5 This is a schematic diagram of the quick-connect plug locking sleeve in the locked state.

[0022] Figure numerals: 1. outer shell; 11. air inlet end cover; 12. end cover; 13. magnetic sticker; 2. filter screen; 3. filter cotton; 4. filter element sleeve; 41. fiber cotton filter element; 42. filter element plug; 5. quick-connect plug; 51. pipe connection assembly; 511 clamping ring; 52. disassembly and assembly assembly; 521. elastic claw; 522. rotating ring; 5221. ejection ramp; 5222. sliding key; 523. locking sleeve; 5231. keyway; 5232. positioning protrusion; 53. groove. DETAILED DESCRIPTION

[0023] The embodiment of the present application provides an air inlet filter device for a vehicle-mounted pumping device, the structure of which is as follows: Figure 1 、 Figure 2 As shown, it mainly includes a housing 1, a filter screen 2, filter cotton 3, a filter element sleeve 4, and a specially designed quick-connect plug 5. An air inlet cover 11 and an end cover 12 are provided at both ends of the housing 1. The air inlet cover 11 has a through slot, and one end surface of the air inlet cover 11 abuts against the filter screen 2. The through slot of the air inlet cover 11 allows the filter screen to communicate with the outside air. The housing 1 is filled with filter cotton 3, which fills the inner cavity of the housing 1. The two ends are compressed by the end covers, and the filter screen 2 is placed between the filter cotton 3 and the end covers 11. The air inlet cover 11 and the end covers 12 are locked and fixed to the housing by screws. A quick-connect plug 5 is also provided on the end cover 12, and a filter element sleeve 4 is fixedly connected to the end cover 12. One end of the pipe connecting assembly 51 passes through the end cover 12 and extends into the interior of the filter element sleeve 4. A fiber cotton filter element 41 is provided inside the filter element sleeve 4. A filter element plug 42 is provided at one end of the filter element sleeve 4 close to the cavity. One end of the fiber cotton filter element 41 abuts against the pipe connecting assembly 51, and the other end is abutted and fixed by the filter element plug 42.

[0024] Among them, the quick-connect plug 5 is the key part of this device, and its structure is as follows Figure 3 、 Figure 4 As shown, it includes a pipe connection assembly 51 and a disassembly assembly 52. The pipe connection assembly 51 is designed to connect to the pipe joint of the filter device to achieve pipe connectivity. The disassembly assembly 52 is equipped with a clamping portion that can be clamped onto the pipe joint of the pipe connection assembly 51 to secure the pipe to the filter device. When the quick-connect plug needs to be removed, the disassembly assembly 52's release mechanism can be activated, disconnecting the clamping portion from the filter device's pipe joint and further disconnecting the pipe joint.

[0025] More specifically, the engaging portion of the disassembly assembly 52 comprises a plurality of elastic claws 521, eight of which are arranged along the circumference of the quick-connect plug 5. The distal ends of the claws are fixedly connected to the disassembly assembly 52. The pipe joint of the pipe connection assembly 51 is provided with a snap ring 511 for the claws to engage. The design of these elastic claws allows them to automatically return to their original shape after being subjected to force, thereby achieving a snap-on engagement and ensuring a stable connection and easy disassembly.

[0026] In order to further enhance the stability of the connection and facilitate disassembly, one end of the elastic claw 521 is specially provided with a bevel. When connecting, the bevel can contact along the clamping ring 511, lifting the elastic claw 521 so that the elastic claw 521 can smoothly enter the clamping ring 511.

[0027] The separation mechanism of the quick-connect plug 5 is further detailed. Specifically, the separation mechanism includes a rotating ring 522 and an ejector bevel 5221 disposed on the rotating ring 522. Eight ejector bevels 5221 are provided along the circumference of the rotating ring 522, corresponding sequentially to the elastic claws 521. The rotating ring 522 is sleeved on the quick-connect plug 5 and rotatably connected thereto. The ejector bevels 5221 rotate along the circumference of the quick-connect plug 5 with the rotating ring 522. The ejector bevels 5221 rotate sequentially from their lowest point to their highest point until they abut against the elastic claws 521. The bevels gradually lift the elastic claws 521, separating the elastic claws 521 from the connecting ring 511. Rotating the rotating ring 522 in the opposite direction causes the highest point of the ejector bevel 5221 to rotate away from abutment with the elastic claws 521. The elastic claws 521 return to their initial state under the action of the elastic force, allowing the user to control the engagement and release of the elastic claws 521 by rotating the rotating ring 522.

[0028] Furthermore, if Figure 5 As shown, the separation mechanism also includes a locking sleeve 523, which is sleeved on the outer peripheral surface of the quick-connect plug 5 and can slide along the outer peripheral surface of the quick-connect plug 5. When the locking sleeve 523 slides to the locked state, the tube wall of the locking sleeve 523 is located on the outside of the elastic claw 521, restricting the lifting of the elastic claw 521, thereby achieving a locked and engaged state. When the locking sleeve 523 slides to the released state, the tube wall of the locking sleeve 523 no longer restricts the lifting of the elastic claw 521.

[0029] The inner circumference of the locking sleeve 523 is also specially provided with a keyway 5231, and the outer circumference of the rotating ring 522 is provided with a corresponding sliding key 5222. Thus, when the locking sleeve 523 slides along the outer circumference of the quick-connect plug 5, the keyway 5231 slides in the direction of the sliding key 5222. When the locking sleeve 523 slides to the released state, the rotating ring 522 is driven to rotate synchronously via the keyway inside the locking sleeve 523, thereby controlling the state of the elastic claw 521.

[0030] In addition, the outer circumference of the locking sleeve 523 is also provided with anti-slip grooves, which facilitates gripping and prevents slipping during rotation, thereby ensuring the accuracy of the rotation of the locking sleeve 523 during operation.

[0031] To facilitate user judgment and operation, the locking sleeve 523 is also provided with a positioning protrusion 5232. At the same time, the quick-connect plug 5 is provided with a corresponding groove 53. The groove 53 is provided at two locations, corresponding to the locking position and the release position of the locking sleeve 523. When the user operates, it is convenient to locate the state between the locking sleeve 523 and the quick-connect plug 5.

[0032] A magnetic patch 13 is also provided on the side of the housing 1. The magnetic patch is fixedly connected to the housing and can adsorb the filter device onto an iron object, thereby facilitating the placement and adjustment of the air intake position of the filter device.

[0033] In summary, the air inlet filter device for vehicle-mounted pumping equipment in this application not only provides multiple, highly efficient filtering functions, but also greatly simplifies the assembly and disassembly process through its unique quick-connect plug design, thereby significantly improving the user's response speed in emergency situations and the convenience of equipment maintenance. These features make this device particularly suitable for equipment such as vehicle-mounted pumping equipment, which often needs to be quickly put into use in complex and changing environments.

[0034] It should be noted that the above specific embodiments are merely detailed explanations and illustrations of the technical solutions of this application and should not be construed as limiting the scope of protection of this application. Any simple modification, equivalent replacement, or modification based on the technical essence of this application should be deemed to fall within the scope of protection of this application.

Claims

1. An air inlet filter device for a vehicle-mounted pumping equipment, characterized in that: It includes a shell, a filter screen, filter cotton, a filter element pipe sleeve and a quick-connect plug; the quick-connect plug is composed of a pipe connecting component and a disassembly component, the pipe connecting component is plugged into the pipe joint of the filter device to connect the pipeline, and the clamping part of the disassembly component is clamped into the pipe joint of the filter device to fix the pipeline and the filter device. When disassembling, the separation mechanism of the disassembly component separates the connection between the clamping part and the pipe joint of the filter device, and separates the plugging of the pipe connecting component and the pipe joint of the filter device.

2. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 1, characterized in that: The clamping portion is an elastic clamping claw, which is arranged along the circumference of the quick-connect plug.

3. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 2, characterized in that: One end of the elastic claw is provided with an inclined surface.

4. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 3, characterized in that: The separation mechanism comprises a rotating ring and an ejection inclined surface, and the rotating ring is rotatably connected to the quick-connect plug.

5. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 4, characterized in that: The separation mechanism further comprises a locking sleeve which is sleeved on the outer peripheral surface of the quick-connect plug and slides along the outer peripheral surface of the quick-connect plug.

6. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 5, characterized in that: The inner circumference of the locking sleeve is provided with a key groove, and the outer circumference of the rotating ring is provided with a sliding key. The locking sleeve drives the rotating ring to rotate.

7. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 6, characterized in that: The outer peripheral surface of the locking sleeve is provided with anti-slip grooves.

8. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 7, characterized in that: The locking sleeve is further provided with a positioning protrusion, and the quick-connect plug is provided with a groove, and the protrusion cooperates with the groove for positioning.

9. The air inlet filter device of the vehicle-mounted pumping equipment according to claim 1, characterized in that: The shell is provided with a magnetic sticker.

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