A limiting tool for oil filter center tube

Abstract

The utility model relates to a kind of limit tool for oil filter center tube, including polygonal shell and the support piece being separately arranged at the two sides of the polygonal shell and being rotatably connected with the polygonal shell, several inner limiting components that can adaptably adjustable clamping to center tube are arranged in the form of toric surface array on the shell of the polygonal shell, on the inner wall of the polygonal shell, in the form of annular interval arrangement, multiple groups of resettable driving components that can be under the action of end magnetic plate the same row of the inner limiting components in the axial direction of the polygonal shell are synchronously adjusted in posture, wherein, the end magnetic plate is detachably installed in the side of the support piece facing the polygonal shell.The utility model can adaptively hold the center tube of multiple batches of size difference and facilitate batch cleaning.

Description

Technical Field

[0001] This utility model relates to the field of center tube clamping structure technology, and in particular to a limiting tool for the center tube of an oil filter. Background Technology

[0002] An oil filter is an indispensable device in automobiles. Its function is to filter engine oil, preventing impurities in the oil from entering the engine and damaging core components. The filter mainly consists of a housing, a filter element, and a central tube. The filter element wraps around the central tube, which has a mesh pattern and is connected to the oil inlet line. Engine oil enters the filter through the inlet on the housing, then passes through the filter element before entering the central tube, effectively removing harmful particles and moisture from the engine lubrication system and improving engine reliability. The central tube is another component of the filter, supporting the filter element and preventing deformation. The central tube is covered with small holes, allowing liquids or gases to pass through smoothly. The central tube is typically manufactured using filter processing equipment, especially using sheet metal raw materials. This involves intermittent punching, notching, cutting into sheets, rolling edges, and shaping into a cylindrical form. After reaching the set length, it is cut using a cutting device to create the filter central tube.

[0003] Because the center tube undergoes stamping, cutting, and grinding, its surface is covered with debris and oil. Therefore, cleaning is necessary to improve its surface cleanliness, reduce oil contamination during use, and prevent contaminated oil from exacerbating engine damage. While existing clamping structures can separate and hold multiple center tubes to prevent collisions and blind spots, their limiting mechanisms typically only clamp a single size of center tube. They cannot adapt to different batches of center tubes of varying sizes at different stages, and they cannot simultaneously clamp and limit multiple center tubes at once, resulting in low clamping efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a limiting fixture for oil filter center tubes that can adaptably clamp multiple batches of center tubes with different sizes for convenient batch cleaning. This solves the problems of traditional cleaning baskets, which suffer from scratches, dents, and other damage due to collisions between center tubes, and the formation of blind spots on the surfaces of stacked center tubes that cannot be effectively cleaned, increasing the cleaning difficulty and reducing the cleaning quality. Although existing clamping fixtures can separate and limit several center tubes, they cannot clamp in batches, and the clamping structure is fixed in size, only suitable for one type of center tube, resulting in a limited range of applications and low efficiency during clamping and cleaning.

[0005] The technical solution adopted by this utility model is as follows: a limiting fixture for the central tube of an oil filter, comprising a polygonal shell and supporting members disposed on both sides of the polygonal shell and rotatably connected to the polygonal shell. Several inner limiting components capable of adaptively and adjustablely clamping the central tube are arranged in a ring-shaped array on the shell of the polygonal shell. Multiple sets of resettable drive components capable of synchronously adjusting the attitude of the inner limiting components in the same row along the axial direction of the polygonal shell under the action of end magnetic plates are arranged in a ring-shaped interval on the inner wall of the polygonal shell. The end magnetic plates are detachably mounted on the side of the supporting members facing the polygonal shell.

[0006] According to a preferred embodiment, the inner limiting assembly includes guide grooves, limiting members, a rotating adjusting disk, a rotating connecting post, and a transmission gear. A plurality of the rotating connecting posts are rotatably inserted into the columnar shell of the polygonal prism shell in a toroidal array arrangement. The rotating adjusting disk is coaxially connected to the outer end of each rotating connecting post on the columnar shell, and the transmission gear is coaxially connected to the inner end of each rotating connecting post on the columnar shell. A plurality of guide grooves are fitted into the columnar shell in a rotationally symmetrical manner about the rotating connecting post, and the limiting member slides within the guide grooves.

[0007] According to a preferred embodiment, the slider of the limiting member is connected to the guide groove, and the top surface of the slider is connected to a support rod that extends to the outside of the guide groove and passes through the rotary adjustment plate.

[0008] According to a preferred embodiment, the top end of the support rod is provided with a first limiting inclined rod, and the other end of the first limiting inclined rod is connected to a connecting vertical rod. The end of the connecting vertical rod away from the first limiting inclined rod is also connected to a second limiting inclined rod, and the top end of the support rod is also provided with a support rail.

[0009] According to a preferred embodiment, the rotating adjustment disk has an adjustment arc groove that matches the guide groove and can pass through the support rod in a rotationally symmetrical manner.

[0010] According to a preferred embodiment, the resettable drive assembly includes a rack, a guide rail, a limiting guide block, and a magnetic pull plate. The limiting guide block is mounted on the inner wall of the cylindrical housing, and a guide rail is slidably inserted into the limiting guide block. The guide rail extends to the side of the limiting guide block and is connected to a rack capable of meshing with a transmission gear. A magnetic pull plate is also connected to one end of the guide rail extending to the outside of the polygonal prism housing.

[0011] According to a preferred embodiment, the guide rail includes a cylindrical slide rod that slides through the limiting guide block, a connecting strip plate connected to the side wall of the cylindrical slide rod and extending to the outside of the limiting guide block, a reset ring plate fitted on the cylindrical slide rod, and a reset spring fitted on one end of the cylindrical slide rod.

[0012] According to a preferred embodiment, the cylindrical slide bar has a return spring mounted on one end, which extends outward through an end cap that penetrates the polygonal prism shell, and this end is connected to a magnetic pull plate; the rack is also connected to the side of the connecting strip.

[0013] The beneficial effects of this utility model are: The inner limiting component provided in this application can change its working posture in cooperation with the resettable drive component and the end magnetic plate, thereby adaptively clamping the central tube in multiple positions on the annular surface. This allows the inner limiting component to effectively limit and clamp central tubes of different specifications, improving the applicability of the clamping fixture and reducing the manufacturing cost of the fixture. Furthermore, multiple inner limiting components arranged side by side and adjusted synchronously can clamp multiple central tubes simultaneously with intervals, effectively avoiding collisions and mutual obstruction between central tubes. This ensures that the central tubes positioned by the clamping fixture can be cleaned and electroplated with high quality and comprehensively, improving processing quality and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a preferred limiting fixture for the center tube of an oil filter proposed in this utility model; Figure 2 This is a schematic diagram of the axial cross section of the inner limiting component of a preferred limiting fixture for the center tube of an oil filter proposed in this utility model. Figure 3 This is a schematic diagram of the axial cross-section of the inner limiting component of a preferred limiting fixture for the center tube of an oil filter proposed in this utility model. Figure 4 This is a schematic diagram of the axial cross section of a preferred limiting fixture for the center tube of an oil filter proposed in this utility model at the resettable drive assembly. Figure 5 This is a partial axial cross-sectional schematic diagram of a resettable drive assembly for a preferred limiting fixture for the central tube of an oil filter proposed in this utility model. Figure 6 This is a plan view of a preferred rotating adjusting disc for a limiting fixture of the central tube of an oil filter proposed in this utility model. Detailed Implementation

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is 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.

[0016] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0017] The following is a detailed explanation with reference to the accompanying drawings. Example

[0018] This application provides a limiting fixture for the center tube of an oil filter, which includes a polygonal shell 1, a support member 2, an inner limiting component 3, an end magnetic plate 4, and a resettable drive component 5.

[0019] according to Figure 1-6 In one specific embodiment, the support member 2 is disposed on both sides of the polygonal prism shell 1 and rotatably connected to the polygonal prism shell 1, allowing the polygonal prism shell 1 to rotate about its axis. Several inner limiting components 3 are arranged in a ring-shaped array on the shell of the polygonal prism shell 1, capable of adaptively and adjustablely clamping the central tube. Multiple sets of resettable drive components 5 are arranged at circumferential intervals on the inner wall of the polygonal prism shell 1, capable of synchronously adjusting the attitude of the inner limiting components 3 in the same row along the axial direction of the polygonal prism shell 1 under the action of the end magnetic plates 4. The end magnetic plates 4 are detachably mounted on the side of the support member 2 facing the polygonal prism shell 1 by means of bolts or other methods. The inner limiting component 3 provided in this application can change its working posture in cooperation with the resettable drive component 5 and the end magnetic plate 4, thereby adaptively clamping the central tube in multiple positions on the annular surface. This allows the inner limiting component 3 to effectively limit and clamp central tubes of different specifications, improving the applicability of the clamping fixture and reducing the manufacturing cost of the fixture. Furthermore, multiple inner limiting components 3 arranged side by side and adjusted synchronously can clamp multiple central tubes simultaneously with intervals, effectively avoiding collisions and mutual obstruction between central tubes. This ensures that the central tubes positioned by the clamping fixture can be cleaned and electroplated with high quality and comprehensively, improving the quality and efficiency of processing.

[0020] Preferably, the polygonal prism shell 1 includes a cylindrical shell 11, an end cap 12, and an end shaft 13. Preferably, the end cap 12 of the polygonal prism shell 1 is detachably mounted on both axial ends of the cylindrical shell 11 by means of bolt connection or other methods. More preferably, the end shaft 13 is centrally mounted on the end face of the end cap 12 away from the cylindrical shell 11 by welding or integral molding. Specifically, the end shaft 13 can be inserted into the inner ring of the connecting bearing 22 to achieve a rotatable connection between the support member 2 and the polygonal prism shell 1.

[0021] Preferably, the support member 2 includes a support vertical plate 21 and a connecting bearing 22 embedded in the support vertical plate 21. Preferably, the outer ring of the connecting bearing 22 is fitted into the through hole of the support vertical plate 21 by means of interference fit or screw limiting. More preferably, the inner ring of the connecting bearing 22 is fitted onto the end shaft 13 of the polygonal prism shell 1 by means of interference fit or screw limiting, so that the end shaft 13 of the polygonal prism shell 1 is inserted into the support vertical plate 21 in a way that allows it to rotate around its own axis. Specifically, the support vertical plate 21 has several through holes, so that it is fixed to the side wall of the functional tank such as the cleaning tank or electroplating tank by means of bolt connection or welding, so that the central tube held by the inner limiting component 3 can be gradually moved into the tank cavity for cleaning or electroplating operation during the rotation of the polygonal prism shell 1 around the axis. Specifically, the end magnetic plate 4 is detachably installed on the surface of the support vertical plate 21 facing the polygonal prism shell 1 by means of bolt connection or other means. Preferably, an intermittently deflecting stepper motor can also be installed on the supporting vertical plate 21 without the end magnetic plate 4, and the output shaft of the motor is connected to the end shaft 13 through a connecting shaft passing through the supporting vertical plate 21 to drive the polygonal shell 1 to rotate. Preferably, the stepper motor can be a JEF500Q type stepper drive motor used for controlling the intermittent deflection of material conveying structures such as conveyor belts.

[0022] Preferably, the inner limiting component 3 includes a guide groove 31, a limiting member 32, a rotating adjusting disk 33, a rotating connecting post 34, and a transmission gear 35. Preferably, a plurality of rotating connecting posts 34 are rotatably inserted into the columnar shell 11 of the polygonal prism shell 1 in a toroidal array arrangement. More preferably, the rotating adjusting disk 33 is coaxially connected to one end of the rotating connecting post 34 on the outer side of the columnar shell 11. Preferably, the transmission gear 35 is coaxially connected to one end of the rotating connecting post 34 on the inner side of the columnar shell 11. Preferably, a plurality of guide grooves 31 are embedded in the columnar shell 11 in a rotationally symmetrical manner about the rotating connecting post 34. More preferably, the limiting member 32 slides in the guide groove 31. The guide groove 31 provided in this application can limit the movement direction of the limiting member 32. Thus, when the rotating adjustment disk 33 is driven to rotate by the transmission gear 35, the rotation of the rotating adjustment disk 33 can push the limiting member 32 to move. At this time, due to the limitation of the guide groove 31, several limiting members 32 on the same circumference simultaneously undergo radial centripetal or centrifugal movement, thereby effectively completing the disassembly and assembly clamping of the central tube and the adaptation inner support limiting.

[0023] Preferably, the guide groove 31 is provided with extension support plates on both sides, so that the assembly position of the guide groove 31 on the columnar housing 11 can be defined by inserting screws into the shell wall of the polygonal prism shell 1 and the extension support plates.

[0024] Preferably, the slider 321 of the limiting member 32 slides in the guide groove 31. More preferably, the top surface of the slider 321 is connected to a support rod 322 that extends to the outside of the guide groove 31 and passes through the rotating adjustment disk 33. Preferably, the top end of the support rod 322 is provided with a first limiting inclined rod 323. More preferably, the other end of the first limiting inclined rod 323 is connected to a connecting vertical rod 324. Preferably, the end of the connecting vertical rod 324 away from the first limiting inclined rod 323 is also connected to a second limiting inclined rod 325. Specifically, the first limiting inclined rod 323 and the second limiting inclined rod 325 are arranged symmetrically on both sides of the connecting vertical rod 324 along the vertical line perpendicular to the midpoint of the connecting vertical rod 324, and the first limiting inclined rod 323, the connecting vertical rod 324 and the second limiting inclined rod 325 can be manufactured by integral molding and shaping bending. Preferably, the top of the support rod 322 is further provided with a support rail 326, which is perpendicular to the rod body and coplanar with the plane defined by the support rod 322 and the first limiting inclined rod 323. Specifically, the support rail 326 and the first limiting inclined rod 323 form an obtuse angle. Preferably, the first limiting inclined rod 323 and the support rod 322, the support rod 322 and the support rail 326, and the support rod 322 and the slider 321 can all be fixedly connected by welding or other methods. Furthermore, the support rod 322, the first limiting inclined rod 323, the connecting vertical rod 324, the second limiting inclined rod 325, and the support rail 326 are all supported by high-strength smooth round steel bars to ensure the strength and stability of the structure.

[0025] Preferably, an adjustment arc groove 331 is provided on the disc body of the rotary adjustment disc 33 in a rotationally symmetrical manner, which matches the guide slide groove 31 and can pass through the support rod 322, so that when the disc body of the rotary adjustment disc 33 rotates, the adjustment arc groove 331 can force the limiting member 32 to move synchronously.

[0026] Preferably, the end magnetic plate 4 is flush with the lower end face of the polygonal shell 1, and the axial projection of the end magnetic plate 4 approximately covers six-eighths of the end cover 12. That is, the end cover 12, which is a nearly circular polygonal plate, is cut into eight equal parts along its axis. When the end cover 12 is vertically arranged, the irregular plate formed by the six parts near its bottom is approximately the same shape as the end magnetic plate 4. This allows the resettable drive assembly 5, after leaving the clamping position, to pull the inner limiting assembly 3 to internally support and clamp the central tube under magnetic force during rotation. Preferably, the end magnetic plate 4 can be a permanent magnet.

[0027] Preferably, the resettable drive assembly 5 includes a rack 51, a guide rail 52, a limiting guide block 53, and a magnetic pull plate 54. Preferably, the limiting guide block 53 is mounted on the inner wall of the cylindrical housing 11 by means of screw limiting connection or welding. More preferably, a guide rail 52 parallel to the flat shell plate of the cylindrical housing 11 is slidably inserted into the limiting guide block 53. Preferably, the side of the guide rail 52 extending to the outside of the limiting guide block 53 is connected to the rack 51, which can mesh with the transmission gear 35, by means of welding or integral molding. Preferably, the end of the guide rail 52 extending to the outside of the polygonal prism shell 1 is also connected to the magnetic pull plate 54. Specifically, two limiting guide blocks 53 are arranged at intervals on the inner wall of the same flat shell plate of the cylindrical housing 11, and multiple sets of limiting guide blocks 53 are arranged circumferentially at intervals on multiple flat shell plates that constitute the cylindrical housing 11. When no external force is applied, the rack 51 and guide slide 52 provided in this application are moved to the right side by the reset thrust of the reset spring 524. At this time, the limiting member 32 is close to the circle, which facilitates the disassembly and assembly of the central tube. When the magnetic pull plate 54 at the end of the guide slide 52 coincides with the axial projection of the end magnetic plate 4, the magnetic attraction overcomes the elastic force of the reset spring 524 and pulls the rack 51 and guide slide 52 to the left, so that the limiting member 32 moves radially outward at the same time, thereby expanding the inner support circle and effectively supporting and clamping the central tube.

[0028] Preferably, the guide rail 52 includes a cylindrical slide rod 521 that slides through the limiting guide block 53, a connecting strip 522 connected to the side wall of the cylindrical slide rod 521 and extending to the outside of the limiting guide block 53, a reset ring plate 523 fitted onto the cylindrical slide rod 521 by welding or integral molding, and a reset spring 524 fitted onto one end of the cylindrical slide rod 521. Preferably, the end of the cylindrical slide rod 521 fitted with the reset spring 524 extends outward through the end cap 12 of the polygonal prism shell 1, and this end is connected to a magnetic pull plate 54. Preferably, a rack 51 is also connected to the side of the connecting strip 522. Preferably, the magnetic pull plate 54 is made of a magnetic metal plate such as iron.

[0029] Preferably, the stepper motor and other electrical components involved in this application are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0030] For surface connections between components not explicitly specified in this application, conventional bolt connections, snap-fit ​​connections, or fixed connections such as welding can be used. As these are conventional connection methods, this application will not elaborate further on this part. Specifically, the connecting ends of the assembled components all form flange structures, and the two flange structures are connected by bolts, gaskets, or other structures.

[0031] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A limiting fixture for the center tube of an oil filter, comprising a polygonal shell (1) and support members (2) respectively disposed on both sides of the polygonal shell (1) and rotatably connected to the polygonal shell (1), characterized in that, Several inner limiting components (3) capable of adaptively and adjustablely clamping the central tube are arranged in a ring array on the shell of the polygonal shell (1). Multiple sets of resettable drive components (5) are arranged circumferentially on the inner wall of the polygonal prism shell (1). These components are capable of synchronously adjusting the attitude of the inner limiting components (3) in the same row along the axial direction of the polygonal prism shell (1) under the action of the end magnetic plates (4). The end magnetic plate (4) is detachably mounted on the side of the support (2) facing the polygonal shell (1).

2. The limiting fixture for the center tube of an oil filter as described in claim 1, characterized in that, The inner limiting assembly (3) includes a guide groove (31), a limiting member (32), a rotating adjusting plate (33), a rotating connecting column (34), and a transmission gear (35), wherein, A number of the rotating connecting columns (34) are rotatably inserted into the columnar shell (11) of the polygonal prism shell (1) in a toroidal array arrangement. The rotating connecting column (34) is coaxially connected to the rotating adjusting disk (33) at the outer end of the columnar shell (11), and a transmission gear (35) is coaxially connected to the inner end of the rotating connecting column (34) of the columnar shell (11). Multiple guide grooves (31) are mounted on the columnar housing (11) in a rotationally symmetrical manner about the rotating connecting column (34), and the limiting member (32) slides in the guide groove (31).

3. The limiting fixture for the center tube of an oil filter as described in claim 2, characterized in that, The slider (321) of the limiting member (32) slides in the guide groove (31), and the top surface of the slider (321) is connected to a support rod (322) that extends to the outside of the guide groove (31) and passes through the rotating adjustment plate (33).

4. The limiting fixture for the center tube of an oil filter as described in claim 3, characterized in that, The top end of the support rod (322) is provided with a first limiting inclined rod (323), and the other end of the first limiting inclined rod (323) is connected to a connecting vertical rod (324). The end of the connecting vertical rod (324) away from the first limiting inclined rod (323) is also connected to a second limiting inclined rod (325). The top of the support rod (322) is also provided with a support bar (326).

5. The limiting fixture for the center tube of an oil filter as described in claim 4, characterized in that, The rotating adjustment plate (33) has an adjustment arc groove (331) that matches the guide slide groove (31) and can carry the support rod (322) in a rotationally symmetrical manner.

6. The limiting fixture for the center tube of an oil filter as described in claim 5, characterized in that, The resettable drive assembly (5) includes a rack (51), a guide slide (52), a limiting guide block (53), and a magnetic pull plate (54), wherein, The limiting guide block (53) is installed on the inner wall surface of the columnar housing (11), and a guide strip (52) is slidably inserted on the limiting guide block (53). The guide slide (52) extends to the side outside the limiting guide block (53) and is connected to a rack (51) that can mesh with the transmission gear (35). The guide slide (52) extends to one end of the polygonal shell (1) and is also connected to a magnetic pull plate (54).

7. The limiting fixture for the center tube of an oil filter as described in claim 6, characterized in that, The guide slide (52) includes a cylindrical slide rod (521) that slides through the limiting guide block (53), a connecting strip (522) that is connected to the side wall of the cylindrical slide rod (521) and extends to the outside of the limiting guide block (53), a reset ring plate (523) fitted on the cylindrical slide rod (521), and a reset spring (524) fitted on one end of the cylindrical slide rod (521).

8. The limiting fixture for the center tube of an oil filter as described in claim 7, characterized in that, The cylindrical slide bar (521) is fitted with a return spring (524) at one end, which extends outward through the end cap (12) of the polygonal shell (1), and the end is connected to a magnetic pull plate (54). The rack (51) is also connected to the side of the connecting strip (522).

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