A carburetor air intake filter
By designing a combination of components such as filter half-rings, support rings, and fixing rings, the problem of quick disassembly and assembly of the carburetor inlet filter structure was solved, ensuring filtration efficiency and the continuous operation capability of the internal combustion engine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG ZHENHONGYUAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
The existing installation method of the carburetor inlet filter structure leads to interference between the filter area and the inlet assembly or low filtration efficiency, making it difficult to quickly disassemble and assemble, thus affecting the continuous operation capability of the internal combustion engine.
The filter components are designed with a combination of filter half-rings, support rings, and fixing rings. The filter components can be quickly assembled and disassembled through simple operations such as embedding and threaded fastening, avoiding drilling and welding and ensuring filtration efficiency.
It enables quick replacement and maintenance of the filter structure, achieving a balance between convenience and filtration efficiency, and ensuring the continuous operation capability of the vaporizer.
Smart Images

Figure CN224462465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of internal combustion engine fuel supply technology, specifically a carburetor inlet filter device. Background Technology
[0002] As a key component of the internal combustion engine fuel supply system, the filtration effect of the carburetor's air inlet directly affects the engine's operational stability and service life. To prevent dust, particles, and other impurities in the air from entering the carburetor and causing problems such as metering orifice blockage and component wear, existing technologies typically incorporate a filter structure inside the carburetor's air inlet.
[0003] However, current filter structures are generally installed inside the air intake by fixing with screws or welding. The limited diameter of the air intake restricts the size design of the filter structure. If the volume of the filter structure is increased to ensure the filtration area, it will cause interference with the assembly of the filter structure with the air intake. If the size of the filter structure is reduced, the filtration efficiency will be reduced, making it difficult to meet the purification requirements. Neither screw fixing nor welding can achieve quick assembly and disassembly of the filter structure. In emergency maintenance or replacement scenarios, it will significantly prolong the downtime of the equipment and affect the continuous operation capability of the internal combustion engine. Utility Model Content
[0004] The purpose of this utility model is to provide a vaporizer inlet filter device to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model relates to a vaporizer inlet filter device, comprising:
[0006] A filter component, comprising a first filter half-ring, a second filter half-ring, a support ring, and a filter screen, wherein the second filter half-ring is installed at one end of the outer surface of the first filter half-ring, the support ring is located on the inner surface of the first and second filter half-rings, and the filter screen is detachably connected to the inner wall of the support ring.
[0007] The fixing component includes an inner groove, a vertical rod, a fixing ring, and a locking ring. The inner groove is formed at one end of filter half-ring one and filter half-ring two. The vertical rod is fixed to the top and bottom of the support ring and is embedded in the inner groove. The fixing ring is threaded to the outer surface of the vertical rod, and the locking ring is sleeved on the outside of the fixing ring.
[0008] Furthermore, support blocks are fixedly connected to both sides of the filter half-ring, and a damping rod is fixed to the outside of the support block. A damping ring is sleeved on the outer surface of the damping rod.
[0009] Furthermore, a support bar is fixedly connected between the plurality of locking rings, and a support frame is fixed on both sides of the locking ring, the support frame being fixed to the outer end of the damping ring.
[0010] Furthermore, one end of the first filter half-ring is provided with a positioning groove, and one end of the second filter half-ring is provided with a positioning block, which is inserted and connected inside the positioning groove.
[0011] Furthermore, it also includes a reinforcing component, which includes a vertical plate, an internal threaded ring, a threaded rod, and a handle. The vertical plate is located on both sides of the filter half-ring, the internal threaded ring is located on the outer side of the vertical plate, the threaded rod is threadedly connected to the middle of the internal threaded ring, and the handle is fixedly connected to the outer side of the threaded rod.
[0012] Furthermore, a support plate is fixedly connected to both sides of the filter half-ring, a rotating rod is provided on one side of the support plate, a rotating ring is sleeved on the outer surface of the rotating rod, and the upright plate is rotatably connected to the outside of the rotating ring.
[0013] Furthermore, threaded holes are provided on both sides of the filter half-ring two, and threaded holes are threadedly connected to the other side of the threaded rod.
[0014] This utility model has the following beneficial effects:
[0015] This utility model features a fixed component that secures the filter half-ring to the outside of the air inlet. The assembly of components such as the support ring, upright, and fixing ring is also completed outside the air inlet. Operators can directly access the assembly area without having to venture into confined spaces. Assembly can be completed through simple operations such as embedding, threaded fastening, and fitting. The entire installation process requires no drilling, welding, or complex bolt fixing. Simply disassembling the locking ring, fixing ring, and filter half-ring in sequence allows for the replacement of the filter components, enabling rapid disassembly and assembly and ensuring the continuous operation capability of the vaporizer. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.
[0017] Figure 1 This is a schematic diagram of the overall filter component of this utility model;
[0018] Figure 2 This is a schematic diagram of the filter half-ring after being split in two according to this utility model;
[0019] Figure 3 This is a schematic diagram of the support ring of this utility model;
[0020] Figure 4 This is a schematic diagram of the locking ring of this utility model;
[0021] Figure 5 This is a schematic diagram of the upright plate of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 11. Filter half-ring one; 12. Filter half-ring two; 13. Support ring; 14. Filter screen;
[0024] 21. Inner groove; 22. Upright pole; 23. Fixing ring; 24. Locking ring; 25. Support bar; 26. Support frame; 27. Damping ring; 28. Damping rod; 29. Support block;
[0025] 31. Positioning groove; 32. Positioning block;
[0026] 41. Support plate; 42. Threaded hole; 43. Rotating ring; 44. Rotating rod; 45. Vertical plate; 46. Internal threaded ring; 47. Threaded rod; 48. Handle. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0029] Please see Figure 1-4 As shown, this utility model is a vaporizer inlet filter device, comprising:
[0030] The filter component includes a first filter ring 11, a second filter ring 12, a support ring 13, and a filter screen 14. The second filter ring 12 is installed at one end of the outer surface of the first filter ring 11, the support ring 13 is located on the inner surface of the first filter ring 11 and the second filter ring 12, and the filter screen 14 is detachably connected to the inner wall of the support ring 13.
[0031] The fixing component includes an inner groove 21, a vertical rod 22, a fixing ring 23, and a locking ring 24. The inner groove 21 is formed at one end of the first filter ring 11 and the second filter ring 12. The vertical rod 22 is fixed to the top and bottom of the support ring 13 and is embedded in the inner groove 21. The fixing ring 23 is threaded to the outer surface of the vertical rod 22, and the locking ring 24 is sleeved on the outside of the fixing ring 23.
[0032] The filter half-ring 11 is fixed outside the air inlet. The assembly of components such as the support ring 13, the upright 22, and the fixing ring 23 is also completed outside the air inlet. Operators can directly access the assembly parts without having to go into confined spaces. Assembly can be completed through simple operations such as inserting, threading, and fitting. The entire installation process does not require drilling, welding, or complex bolt fixing. Only by disassembling the locking ring 24, the fixing ring 23, and the filter half-ring 12 in sequence can the filter components be replaced, achieving quick disassembly and assembly and ensuring the continuous operation capability of the vaporizer.
[0033] Support blocks 29 are fixedly connected to both sides of the filter half-ring 11. A damping rod 28 is fixed to the outside of the support block 29. A damping ring 27 is sleeved on the outer surface of the damping rod 28.
[0034] The damping ring 27 can move up and down outside the damping rod 28, thereby moving the position of the locking ring 24.
[0035] Support bars 25 are fixedly connected between multiple locking rings 24, and support frames 26 are fixed on both sides of the locking rings 24. The support frames 26 are fixed to the outer end of the damping rings 27.
[0036] One end of the filter half-ring 11 is provided with a positioning groove 31, and one end of the filter half-ring 12 is provided with a positioning block 32, which is inserted into and connected to the inside of the positioning groove 31.
[0037] After the support ring 13 is installed inside the filter half-ring 11, the positioning block 32 is inserted into the positioning groove 31, so that the outer end of the filter half-ring 12 can be easily installed and removed from the internal support ring 13.
[0038] Working principle:
[0039] First, fix the filter half-ring 11 to the outside of the vaporizer inlet. Then, insert the support ring 13 into the inside of the filter half-ring 11. The upright rod 22 is inserted into the pre-set inner groove 21 on the inner wall of the filter half-ring 11. Next, tighten the fixing ring 23 by screwing it into the outer thread of the upright rod 22 through the threaded structure of the inner wall. During the tightening process, the fixing ring 23 gradually approaches the outer surface of the filter half-ring 11 and the filter plate ring 2. The damping ring 27 can move up and down along the damping rod 28. The locking ring 24 is sleeved on the outside of the fixing ring 23. After the internal fixing is completed, the filter half-ring 22 is correspondingly fastened to the outer end of the filter half-ring 11. The positioning block 32 is inserted into the positioning groove 31.
[0040] This step, while ensuring filtration efficiency, solves the operational difficulties caused by the traditional filter structure being installed inside the air inlet, achieving an organic unity between filtration function and ease of maintenance.
[0041] Please see Figure 1 , Figure 2 , Figure 5 As shown, this embodiment, based on the above embodiment, further includes:
[0042] The reinforcing component includes a vertical plate 45, an internal threaded ring 46, a threaded rod 47, and a handle 48. The vertical plate 45 is located on both sides of the filter half-ring 11. The internal threaded ring 46 is located on the outside of the vertical plate 45. The threaded rod 47 is threadedly connected to the middle of the internal threaded ring 46. The handle 48 is fixedly connected to the outside of the threaded rod 47.
[0043] After the filter half-ring 12 and filter half-ring 11 are installed, turn the handle 48 to drive the threaded rod 47 to rotate, so that the threaded rod 47 is fixed inside the threaded hole 42, and the filter half-ring 11 and filter half-ring 12 are fixed together again.
[0044] The filter half-ring 11 is fixedly connected to two sides of a support plate 41. A rotating rod 44 is provided on one side of the support plate 41. A rotating ring 43 is sleeved on the outer surface of the rotating rod 44. The upright plate 45 is rotatably connected to the outside of the rotating ring 43.
[0045] The rotating ring 43 can rotate outside the rotating rod 44, and the position of the threaded rod 47 can be adjusted and adapted by rotation.
[0046] The filter half-ring 12 has threaded holes 42 on both sides, and the other side of the threaded rod 47 is threadedly connected to the threaded hole 42.
[0047] Working principle:
[0048] After the filter half-ring 12 and filter half-ring 11 are initially engaged through the cooperation of the positioning block 32 and the positioning groove 31, the rotating ring 43 is sleeved on the outside of the rotating rod 44. The rotating ring 43 can rotate freely around the rotating rod 44. The operator turns the handle 48, which is fixedly connected to one end of the threaded rod 47. When the handle 48 is turned, the threaded rod 47 can be directly driven to rotate around its own axis. The edge of the filter half-ring 12 has a pre-set threaded hole 42 that matches the threaded rod 47, so that the threaded rod 47 is gradually screwed into the threaded hole 42 until the end of the threaded rod 47 is pressed against the inner wall of the filter half-ring 11.
[0049] This step not only achieves efficient secondary fixation of filter half-rings 11 and 2, but also ensures the convenience of the assembly process, further improving the stability and reliability of the device under complex working conditions.
[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A vaporizer inlet filter device, characterized in that, include: The filter component includes a first filter ring (11), a second filter ring (12), a support ring (13), and a filter screen (14). The second filter ring (12) is installed at one end of the outer surface of the first filter ring (11). The support ring (13) is located on the inner surface of the first filter ring (11) and the second filter ring (12). The filter screen (14) is detachably connected to the inner wall of the support ring (13). The fixing component includes an inner groove (21), a vertical rod (22), a fixing ring (23), and a locking ring (24). The inner groove (21) is opened at one end of the first filter half ring (11) and the second filter half ring (12). The vertical rod (22) is fixed to the top and bottom of the support ring (13). The vertical rod (22) is embedded in the inside of the inner groove (21). The fixing ring (23) is threaded to the outer surface of the vertical rod (22). The locking ring (24) is sleeved on the outside of the fixing ring (23).
2. The vaporizer inlet filter device according to claim 1, characterized in that: The filter half-ring (11) is fixedly connected to two sides by support blocks (29), and a damping rod (28) is fixed to the outside of the support block (29). A damping ring (27) is sleeved on the outer surface of the damping rod (28).
3. The vaporizer inlet filter device according to claim 2, characterized in that: Support bars (25) are fixedly connected between multiple locking rings (24), and support frames (26) are fixed on both sides of the locking rings (24). The support frames (26) are fixed to the outer end of the damping rings (27).
4. The vaporizer inlet filter device according to claim 1, characterized in that: One end of the filter half-ring (11) is provided with a positioning groove (31), and one end of the filter half-ring (12) is provided with a positioning block (32), which is inserted into the inside of the positioning groove (31).
5. The vaporizer inlet filter device according to claim 1, characterized in that: It also includes a reinforcing component, which includes a vertical plate (45), an internal threaded ring (46), a threaded rod (47), and a handle (48). The vertical plate (45) is located on both sides of the filter half ring (11). The internal threaded ring (46) is located on the outside of the vertical plate (45). The threaded rod (47) is threadedly connected to the middle of the internal threaded ring (46). The handle (48) is fixedly connected to the outside of the threaded rod (47).
6. The vaporizer inlet filter device according to claim 5, characterized in that: The filter half-ring (11) is fixedly connected to two sides of a support plate (41). A rotating rod (44) is provided on one side of the support plate (41). A rotating ring (43) is sleeved on the outer surface of the rotating rod (44). The upright plate (45) is rotatably connected to the outside of the rotating ring (43).
7. The vaporizer inlet filter device according to claim 6, characterized in that: The filter half-ring (12) has threaded holes (42) on both sides, and the threaded rod (47) has a threaded hole (42) on the other side.