Filter screen cover with anti-falling structure

Abstract

The utility model provides a filter screen plug cover with prevent falling structure belongs to filter screen technical field, including main part mechanism, including the plug cover body, set up in the fixed sleeve of plug cover body bottom, set up in the control component of plug cover body top, and set up in the rotating handle of control component top, prevent falling mechanism. The utility model discloses through the synergies of control component and prevent falling mechanism, can realize the quick installation and reliable locking of filter screen plug cover, and the threaded rod and threaded block in the adjustment component cooperate with each other, can be accurately adjusted according to actual demand plug cover opening height, adapts to the different installation depth of filter screen, and the linkage design of limit component adopts wedge and spring, and cooperation threaded block and the top block of adjustment component can realize the quick installation and disassembly of device, and the special inclined plane of supporting sleeve and plane alternate structure cooperation wedge triangle recess, form reliable mechanical locking, and the operation stability of equipment is greatly promoted.

Description

Technical Field

[0001] This utility model belongs to the field of filter screen technology, specifically relating to filter screen plugs with anti-detachment structures. Background Technology

[0002] In the automotive industry, filters are widely used in critical components such as fuel systems, lubrication systems, and intake systems to prevent impurities from entering precision parts. As one of the core components installed at the filter opening, the filter cap is mainly used to seal the filter opening, facilitating the installation, disassembly, cleaning, and maintenance of the filter, while ensuring the sealing of the components. Its performance directly affects the safety of vehicle operation. For example, if the cap of the fuel tank vent valve falls off, it will cause fuel vapor leakage, posing a safety hazard.

[0003] During operation, automobiles are constantly subjected to vibration, impact, and temperature changes. Traditional filter plugs may loosen or even fall off due to mechanical fatigue or seal failure, which could damage the filter. Furthermore, the installation depth of filters varies between different models or systems. Traditional filter plugs are usually fixed and cannot flexibly adjust the sealing height, resulting in poor sealing or installation difficulties under certain operating conditions, which greatly affects the applicability of the device. In addition, the installation of traditional filter plugs is relatively difficult and requires special tools, which seriously affects the efficiency of replacement or maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a filter screen cover with an anti-detachment structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Filter caps with anti-detachment structures include,

[0007] The main structure includes a plug body, a fixing sleeve disposed at the bottom of the plug body, an adjustment component disposed at the top of the plug body, and a rotating handle disposed at the top of the adjustment component;

[0008] An anti-detachment mechanism is symmetrically arranged at the bottom of the plug body, including an adjustment component disposed at the bottom of the plug body and limiting components symmetrically disposed on both sides of the adjustment component. The adjustment component is used to adjust the height of the plug body when it is opened, and the limiting components are used to prevent the adjustment component from detaching.

[0009] As a preferred embodiment of this utility model, the control component includes a protective cover rotatably connected to the top of the plug body, a fixed shaft disposed at the bottom of the protective cover, a drive gear rotatably sleeved on the outer surface of the fixed shaft, a drive shaft symmetrically disposed on both sides of the fixed shaft, and a transmission gear symmetrically disposed on both sides of the drive gear.

[0010] In a preferred embodiment of this utility model, one end of the fixed shaft is fixedly connected to the bottom of the protective cover, and the other end is fixedly connected to the top of the plug body. One end of the drive shaft is fixedly connected to the bottom of the protective cover, and the other end is fixedly connected to the top of the drive gear. The drive gear meshes with the transmission gear.

[0011] In a preferred embodiment of this utility model, the adjusting assembly includes a sliding rod fixedly connected to the inner surface of the transmission gear, a mounting block fixedly installed on the outer surface of the fixed sleeve, a threaded rod fixedly installed at the bottom of the sliding rod, and a threaded block sleeved on the outer surface of the threaded rod. The outer surface of the sliding rod slides in contact with the inner surface of the mounting block, and the threaded block is threadedly connected to the threaded rod.

[0012] As a preferred embodiment of the present invention, the adjusting assembly further includes a top block disposed at the bottom of the threaded rod, limiting rods symmetrically distributed on both sides of the threaded rod, and a support sleeve disposed between the threaded block and the top block.

[0013] In a preferred embodiment of this utility model, one end of the limiting rod is fixedly connected to the bottom of the sliding rod, and the other end is fixedly connected to the top of the top block, and the support sleeve is slidably sleeved on the outer surface of the two limiting rods.

[0014] As a preferred embodiment of this utility model, the limiting component includes a wedge block disposed on the inner wall of the mounting block, a transmission rod fixedly connected to the right-angle side of the wedge block, a compression spring slidably sleeved on the outer surface of the transmission rod, a baffle fixedly installed on the inner wall of the mounting block, and a limiting block disposed at the end of the transmission rod.

[0015] In a preferred embodiment of this utility model, the wedge block slides in contact with the inner wall of the mounting block, one end of the transmission rod is fixedly connected to the wedge block, and the other end is fixedly connected to the limiting block, one end of the compression spring contacts the outer surface of the wedge block, and the other end contacts the outer surface of the baffle, and the outer surface of the transmission rod slides in contact with the inner surface of the baffle.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: through the synergistic action of the adjustment component and the anti-detachment mechanism, the filter screen plug can be quickly installed and reliably locked. The threaded rod and threaded block in the adjustment component cooperate with each other to precisely adjust the opening height of the plug according to actual needs, adapting to different installation depths of the filter screen. The limiting component adopts a linkage design of wedge block and spring, which, together with the threaded block and top block of the adjustment component, enables the device to be quickly installed and disassembled. The special inclined and flat alternating structure of the support sleeve, combined with the triangular groove of the wedge block, forms a reliable mechanical lock, greatly improving the operational stability of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of 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. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the control component of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the adjustment component of this utility model;

[0022] Figure 5 This is a partial structural diagram of the anti-detachment mechanism of this utility model.

[0023] In the diagram: 100, main body; 101, plug body; 102, fixing sleeve; 103, adjustment component; 103a, protective cover; 103b, fixing shaft; 103c, drive gear; 103d, drive shaft; 103e, transmission gear; 104, rotating handle; 200, anti-detachment mechanism; 201, adjustment component; 201a, sliding rod; 201b, mounting block; 201c, threaded rod; 201d, threaded block; 201e, top block; 201f, limiting rod; 201g, support sleeve; 202, limiting component; 202a, wedge block; 202b, transmission rod; 202c, compression spring; 202d, baffle; 202e, limiting block. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figure 1-5 This is the first embodiment of the present invention, which provides a filter screen cover with an anti-detachment structure, including:

[0029] The main body 100 includes a plug body 101, a fixing sleeve 102 disposed at the bottom of the plug body 101, an adjustment component 103 disposed at the top of the plug body 101, and a rotating handle 104 disposed at the top of the adjustment component 103.

[0030] The anti-detachment mechanism 200 is symmetrically arranged at the bottom of the plug body 101. It includes an adjustment component 201 arranged at the bottom of the plug body 101 and a limiting component 202 symmetrically arranged on both sides of the adjustment component 201. The adjustment component 201 is used to adjust the height of the plug body 101 when it is opened, and the limiting component 202 is used to prevent the adjustment component from detaching.

[0031] It should be noted that the plug body 101 is used to seal the filter screen opening, and its bottom is provided with a rubber sealing ring to improve the sealing performance. The fixing sleeve 102 is made of elastic material and can cooperate with the filter screen or related equipment structure to play a role in initial positioning and installation. The control component 103 is used to control the anti-detachment mechanism. The control component 103 can be operated by rotating the handle 104. The adjustment component 201 is used to adjust the height of the plug body 101 when it is open to adapt to different usage needs. The limit component 202 is used to prevent the plug body 101 from falling out during use.

[0032] Specifically, the control component 103 includes a protective cover 103a rotatably connected to the top of the plug body 101, a fixed shaft 103b disposed at the bottom of the protective cover 103a, a drive gear 103c rotatably sleeved on the outer surface of the fixed shaft 103b, a drive shaft 103d symmetrically disposed on both sides of the fixed shaft 103b, and a transmission gear 103e symmetrically disposed on both sides of the drive gear 103c.

[0033] Furthermore, one end of the fixed shaft 103b is fixedly connected to the bottom of the protective cover 103a, and the other end is fixedly connected to the top of the plug body 101. One end of the drive shaft 103d is fixedly connected to the bottom of the protective cover 103a, and the other end is fixedly connected to the top of the drive gear 103c. The drive gear 103c meshes with the transmission gear 103e.

[0034] It should be noted that the fixed shaft 103b is used to fix the rotational position of the drive gear 103c, and the drive shaft 103d is used to drive the drive gear 103c to rotate. Turning the rotating handle 104, in turn, drives the protective cover 103a to rotate. The protective cover 103a drives the drive gear 103c to rotate via the drive shaft 103d. The drive gear 103c meshes with the transmission gear 103e. When the drive gear 103c rotates, it can drive the transmission gear 103e to rotate, thereby transmitting power to the anti-detachment mechanism 200.

[0035] Furthermore, the adjustment assembly 201 includes a sliding rod 201a fixedly connected to the inner surface of the transmission gear 103e, a mounting block 201b fixedly installed on the outer surface of the fixed sleeve 102, a threaded rod 201c fixedly installed at the bottom of the sliding rod 201a, and a threaded block 201d sleeved on the outer surface of the threaded rod 201c. The outer surface of the sliding rod 201a slides in contact with the inner surface of the mounting block 201b, and the threaded block 201d is threadedly connected to the threaded rod 201c.

[0036] It should be noted that the outer surface of the sliding rod 201a slides in contact with the inner surface of the mounting block 201b, which is used to guide and limit the adjustment component 201. The threaded block 201d is threadedly connected to the threaded rod 201c. When the threaded block 201d is rotated, the threaded block 201d can move up and down along the threaded rod 201c.

[0037] The adjustment assembly 201 also includes a top block 201e disposed at the bottom of the threaded rod 201c, a limiting rod 201f symmetrically distributed on both sides of the threaded rod 201c, and a support sleeve 201g disposed between the threaded block 201d and the top block 201e.

[0038] Preferably, one end of the limiting rod 201f is fixedly connected to the bottom of the sliding rod 201a, and the other end is fixedly connected to the top of the top block 201e, and the support sleeve 201g is slidably sleeved on the outer surface of the two limiting rods 201f.

[0039] It should be noted that the limiting rod 201f is used to guide the support sleeve 201g, the bottom of the top block 201e is designed with an arc surface, the support sleeve 201g directly contacts the limiting component 202, the top of the support sleeve 201g is designed with a slope, and the bottom is divided into four parts, with the slope and plane being set alternately, so that the two surfaces of the support sleeve 201g that contact the limiting components 202 on both sides are either planes or slopes.

[0040] Furthermore, the limiting component 202 includes a wedge 202a disposed on the inner wall of the mounting block 201b, a transmission rod 202b fixedly connected to the right-angle side of the wedge 202a, a compression spring 202c slidably sleeved on the outer surface of the transmission rod 202b, a baffle 202d fixedly installed on the inner wall of the mounting block 201b, and a limiting block 202e disposed at the end of the transmission rod 202b.

[0041] Specifically, wedge 202a slides in contact with the inner wall of mounting block 201b, one end of transmission rod 202b is fixedly connected to wedge 202a, and the other end is fixedly connected to limit block 202e, one end of compression spring 202c contacts the outer surface of wedge 202a, and the other end contacts the outer surface of baffle 202d, and the outer surface of transmission rod 202b slides in contact with the inner surface of baffle 202d.

[0042] It should be noted that the inclined surface of the wedge 202a has a triangular groove. When the wedge 202a contacts the bottom of the support sleeve 201g, if the bottom surface of the contact is flat, the bottom of the support sleeve 201g will be just stuck on the inner surface of the triangular groove. If the contact surface is inclined, it will not be affected. The compression spring 202c is used to push the wedge 202a outward, thereby limiting the adjustment component 201. The baffle 202d and the limiting block 202e cooperate to limit the farthest pushing distance of the wedge 202a. When the top block 201e in the adjustment component 201 enters the inner cavity of the mounting block 201b, it will push the wedges 202a on both sides to the sides and then move downward. The wedge 202a will then be stuck between the support sleeve 201g and the top block 201e.

[0043] In use, first fix the fixing sleeve 102 to the outside of the filter screen, then insert the remaining parts of the adjusting components 201 on both sides, except for the mounting block 201b, into the inner cavity of the mounting block 201b. At this time, the sliding rod 201a slides along the inner surface of the mounting block 201b, guiding the insertion of the adjusting components 201. When the top block 201e moves downward and passes the wedge block 202a, the inclined surface at the bottom of the top block 201e contacts the inclined surface at the top of the wedge block 202a, and the wedge block 202a is squeezed to both sides by the top block 201e. At this time, the compression spring 202c is squeezed. After the top block 201e passes, the compression spring 202c generates a reverse force to push the wedge block 202a back. When pushed to the initial position, the limiting block 202e is stopped by the baffle 202d to prevent excessive movement. When the remaining parts in the adjusting components 201 continue to move... When moving downwards, the triangular groove on the inclined surface of the wedge 202a contacts the flat surface at the bottom of the support sleeve 201g, thus fixing the entire device. At this time, the plug body 101 is in the open state. When it needs to be closed, simply turn the rotating handle 104. When the rotating handle 104 rotates, it drives the drive gear 103 to rotate, which in turn drives the transmission gears 103e on both sides to rotate. When the transmission gears 103e rotate, they drive the sliding rod 201a to rotate, which in turn drives the limit rod 201f to rotate, and finally drives the support sleeve 201g to rotate until the inclined surface at the bottom of the support sleeve 201g contacts the inclined surface of the wedge 202a. At this time, the sliding rod 201a is pressed down again, and the support sleeve 201g pushes the wedges 202a on both sides open and moves downwards. The plug body 101 will stick to the filter screen under the action of gravity, completing the closure.

[0044] When it is necessary to remove the plug body 101, simply pull the plug body 101 upward in the closed state. At this time, the other parts of the adjusting assembly 201 except the mounting block 201b are driven to move upward. During the movement, the inclined surface at the top of the support sleeve 201g contacts the bottom plane of the wedge block 202a and pushes it open. Since the wedge block 202a exerts downward pressure on the support sleeve 201g during the movement, the support sleeve 201g and the top block 201e are in close contact and will pass through the wedge block 202a together, thus successfully disassembling the device.

[0045] When it is necessary to adjust the opening height of the plug body 101, simply rotate the threaded block 201d. After the threaded block 201d rotates, it moves along the axial direction of the threaded rod 201c, changing the limiting position of the support sleeve 201g, thereby realizing the adjustment of the opening height of the plug body 101.

[0046] In summary, the main mechanism 100 provides basic sealing and control functions. The adjustment component 103, in conjunction with the rotating handle 104, enables convenient adjustment of the adjustment component 201. In the anti-detachment mechanism 200, the threaded rod 201c and threaded block 201d in the adjustment component 201 can finely adjust the opening height of the plug to adapt to filters with different installation depths. The limiting component 202 utilizes a structure of wedges, springs, and L-shaped grooves to form a reliable limiting lock during installation, closing, and use. The three components work together to effectively solve the problems of easy detachment and inconvenient adjustment of traditional plugs. The alternating structure of the inclined and flat surfaces of the support sleeve 201g, in conjunction with the triangular groove of the wedge 202a, enables quick switching between insertion self-locking and rotation unlocking, significantly improving maintenance efficiency.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filter screen cover with anti-falling structure, characterized in that: include, The main body (100) includes a plug body (101), a fixing sleeve (102) disposed at the bottom of the plug body (101), an adjustment component (103) disposed at the top of the plug body (101), and a rotating handle (104) disposed at the top of the adjustment component (103). An anti-detachment mechanism (200) is symmetrically arranged at the bottom of the plug body (101), including an adjustment component (201) disposed at the bottom of the plug body (101) and a limiting component (202) symmetrically disposed on both sides of the adjustment component (201). The adjustment component (201) is used to adjust the height of the plug body (101) when it is open, and the limiting component (202) is used to prevent the adjustment component (201) from detaching.

2. The filter screen cover with a drop-off prevention structure according to claim 1, characterized in that: The control component (103) includes a protective cover (103a) rotatably connected to the top of the plug body (101), a fixed shaft (103b) disposed at the bottom of the protective cover (103a), a drive gear (103c) rotatably sleeved on the outer surface of the fixed shaft (103b), a drive shaft (103d) symmetrically disposed on both sides of the fixed shaft (103b), and a transmission gear (103e) symmetrically disposed on both sides of the drive gear (103c).

3. The filter screen cover with anti-falling structure according to claim 2, characterized in that: One end of the fixed shaft (103b) is fixedly connected to the bottom of the protective cover (103a), and the other end is fixedly connected to the top of the plug body (101). One end of the drive shaft (103d) is fixedly connected to the bottom of the protective cover (103a), and the other end is fixedly connected to the top of the drive gear (103c). The drive gear (103c) meshes with the transmission gear (103e).

4. The filter screen cover with a drop-off prevention structure according to claim 3, characterized in that: The adjusting assembly (201) includes a sliding rod (201a) fixedly connected to the inner surface of the transmission gear (103e), a mounting block (201b) fixedly installed on the outer surface of the fixed sleeve (102), a threaded rod (201c) fixedly installed at the bottom of the sliding rod (201a), and a threaded block (201d) sleeved on the outer surface of the threaded rod (201c). The outer surface of the sliding rod (201a) slides in contact with the inner surface of the mounting block (201b), and the threaded block (201d) is threadedly connected to the threaded rod (201c).

5. The filter screen cover with a drop-off prevention structure according to claim 4, characterized in that: The adjustment assembly (201) further includes a top block (201e) disposed at the bottom of the threaded rod (201c), a limiting rod (201f) symmetrically distributed on both sides of the threaded rod (201c), and a support sleeve (201g) disposed between the threaded block (201d) and the top block (201e).

6. The filter screen cover with a drop-off prevention structure according to claim 5, characterized in that: One end of the limiting rod (201f) is fixedly connected to the bottom of the sliding rod (201a), and the other end is fixedly connected to the top of the top block (201e). The support sleeve (201g) is slidably sleeved on the outer surface of the two limiting rods (201f).

7. The filter screen cover with a drop-off prevention structure according to claim 6, characterized in that: The limiting component (202) includes a wedge (202a) disposed on the inner wall of the mounting block (201b), a transmission rod (202b) fixedly connected to the right-angle side of the wedge (202a), a compression spring (202c) slidably sleeved on the outer surface of the transmission rod (202b), a baffle (202d) fixedly installed on the inner wall of the mounting block (201b), and a limiting block (202e) disposed at the end of the transmission rod (202b).

8. The filter screen cover with a drop-off prevention structure according to claim 7, characterized in that: The wedge (202a) slides in contact with the inner wall of the mounting block (201b). One end of the transmission rod (202b) is fixedly connected to the wedge (202a), and the other end is fixedly connected to the limiting block (202e). One end of the compression spring (202c) contacts the outer surface of the wedge (202a), and the other end contacts the outer surface of the baffle (202d). The outer surface of the transmission rod (202b) slides in contact with the inner surface of the baffle (202d).

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