Oil drainage screw

Abstract

The utility model discloses an oil drainage screw, which relates to the field of vehicle accessories, and comprises a screw main body, a thread part is arranged at the bottom of the screw main body, a sealing component is arranged in the middle of the screw main body, a limiting part is arranged at the top end of the screw main body, and a groove is formed in the middle of the limiting part; a twisting plate is arranged in the groove, and a plurality of reinforcing ribs are arranged on the side wall of the twisting plate; the reinforcing ribs are of an X-shaped structure, and the multiple reinforcing ribs are connected end to end. The sealing assembly comprises an annular groove formed in the middle of the screw body, and a sealing ring is arranged in the annular groove. Clamping grooves are formed in the two sides of the groove, and clamping blocks are arranged on the two sides of the screwing plate and located in the clamping grooves. According to the oil drainage screw, the overall performance of the oil drainage screw can be effectively improved, it is ensured that in the using process of the oil drainage screw, especially the screwing plate can stably work for a long time, and operation safety and reliability are improved; the overall strength of the twisting plate is effectively enhanced, the twisting plate is prevented from being easily broken or deformed in the using process, and the service life of the twisting plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of vehicle accessories, in particular to an oil drain screw. Background Art

[0002] The oil drain screw is a screw installed on the oil pan (or oil tank) of a vehicle or mechanical equipment to drain the lubricating oil or engine oil inside the equipment. Whenever the old oil needs to be replaced or drained, the oil can be drained by unscrewing the oil drain screw.

[0003] The drain screw is usually designed with leak-proof performance in mind to ensure that the oil pan can be reliably sealed when the oil does not need to be drained. Changing the engine oil is a common step in vehicle maintenance, and the drain screw is an integral part of the process.

[0004] For example, Chinese Patent No. 201320566411.8 discloses an oil drain screw for an oil tank, which includes a hand screw, a thread, an axial portion, a screw plate, and a transition portion. The hand screw can be tightened or loosened by holding the screw plate and rotating it clockwise or counterclockwise. However, the above oil drain screw still has the following shortcomings: the screw plate of the oil drain screw is fixedly connected to the limit portion, but since there is no reinforcement measure for the screw plate, the screw plate is easy to break, which affects the reliability and safety of use.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes an oil drain screw to overcome the above technical problems existing in the existing related technology.

[0007] To this end, the specific technical solutions adopted by the utility model are as follows:

[0008] An oil drain screw comprises a screw body, a threaded portion is arranged at the bottom of the screw body, a sealing assembly is arranged in the middle of the screw body, a limiting portion is arranged at the top of the screw body, a groove is arranged in the middle of the limiting portion; a screw plate is arranged in the groove, and a plurality of reinforcing ribs are arranged on the side wall of the screw plate.

[0009] Furthermore, in order to effectively enhance the overall strength of the twisting plate, prevent the twisting plate from being easily broken or deformed during use, and extend the service life of the twisting plate, the reinforcing ribs are arranged in an X-shaped structure, and several reinforcing ribs are connected end to end.

[0010] Furthermore, in order to prevent leakage of lubricating oil or engine oil, the sealing assembly includes an annular groove arranged in the middle of the screw body, and a sealing ring is arranged in the annular groove.

[0011] Furthermore, in order to ensure that the screwing plate maintains a firm fixing effect during the oil drain screw operation, card slots are provided on both sides of the groove, and card blocks are provided on both sides of the screwing plate and in the card slots; the cross-sectional area of ​​the card slots and the card blocks gradually decreases along the direction close to the threaded portion.

[0012] Furthermore, in order to prevent the oil drain screw from being over-tightened, limiting plates are provided on both sides of the limiting portion, and the limiting plates are L-shaped structures.

[0013] The beneficial effects of the utility model are:

[0014] (1) The utility model can effectively improve the overall performance of the oil drain screw, ensure that the oil drain screw, especially the screw plate, can work stably for a long time during use, and improve the safety and reliability of operation.

[0015] (2) By setting reinforcing ribs, the overall strength of the twist plate can be effectively enhanced, preventing the twist plate from being easily broken or deformed during use, extending the service life of the twist plate, and at the same time enhancing the stability and anti-torsion ability of the twist plate, ensuring that it maintains a stable working state during operation.

[0016] (3) By setting up a sealing component, the sealing ring can fit tightly against the inner wall of the screw body, forming a reliable seal to prevent leakage of lubricating oil or engine oil. By setting up a card slot and a card block, it is ensured that the screw plate maintains a stable fixing effect during the oil drain screw operation; the design of gradually decreasing cross-sectional area allows the card block to fit tightly during the deepening process, effectively reducing the risk of the screw plate loosening due to vibration or during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an oil drain screw according to an embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional unfolded schematic diagram of a sealing component in an oil drain screw according to an embodiment of the utility model;

[0020] Figure 3 The utility model is a structural schematic diagram of a screw plate in an oil drain screw according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Screw body; 2. Threaded part; 3. Sealing assembly; 301. Annular groove; 302. Sealing ring; 4. Limiting part; 5. Groove; 6. Tightening plate; 7. Reinforcing rib; 8. Slot; 9. Block; 10. Limiting plate. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, an oil drain screw is provided.

[0025] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, the oil drain screw according to the embodiment of the utility model includes a screw body 1, a threaded portion 2 is provided at the bottom of the screw body 1, a sealing assembly 3 is provided in the middle of the screw body 1, a limiting portion 4 is provided at the top of the screw body 1, and a groove 5 is provided in the middle of the limiting portion 4; a screw plate 6 is provided in the groove 5, and a plurality of reinforcing ribs 7 are provided on the side wall of the screw plate 6.

[0026] With the aid of the above scheme, the utility model can effectively improve the overall performance of the oil drain screw, ensure that during use, especially the screw plate 6 can work stably for a long time, and improve the safety and reliability of operation.

[0027] In one embodiment, for the above-mentioned reinforcing ribs 7, the reinforcing ribs 7 are arranged in an X-shaped structure, and several reinforcing ribs 7 are connected end to end, so as to effectively enhance the overall strength of the twisting plate 6, prevent the twisting plate 6 from being easily broken or deformed during use, extend the service life of the twisting plate 6, and at the same time enhance the stability and anti-twisting ability of the twisting plate 6, ensuring that it maintains a stable working state during operation.

[0028] The X-shaped reinforcing ribs 7 can evenly disperse the force on the screw plate 6, reducing the risk of stress concentration and thus extending the service life.

[0029] In one embodiment, for the above-mentioned sealing assembly 3, the sealing assembly 3 includes an annular groove 301 arranged in the middle of the screw body 1, and a sealing ring 302 is arranged in the annular groove 301, so that the sealing ring 302 can fit tightly against the inner wall of the screw body 1 to form a reliable seal to prevent leakage of lubricating oil or engine oil.

[0030] When using the sealing ring 302, check whether the sealing ring 302 is damaged, aged or deformed to avoid affecting the sealing effect. When installing the sealing ring 302, ensure that it is correctly positioned in the annular groove 301 on the screw body 1 to avoid deviation or distortion.

[0031] In one embodiment, for the above-mentioned groove 5, a clamping groove 8 is provided on both sides of the groove 5, and a clamping block 9 is provided on both sides of the screwing plate 6 and located in the clamping groove 8; the cross-sectional areas of the clamping groove 8 and the clamping block 9 gradually decrease along the direction close to the threaded portion 2, thereby ensuring that the screwing plate 6 maintains a stable fixing effect during the oil drain screw operation; the design of gradually decreasing cross-sectional area allows the clamping block 9 to fit tightly during the deepening process, effectively reducing the risk of loosening of the screwing plate 6 due to vibration or during use.

[0032] In one embodiment, for the above-mentioned limiting portion 4, limiting plates 10 are provided on both sides of the limiting portion 4, and the limiting plates 10 are L-shaped structures, thereby serving as physical limitations for tightening to prevent the drain screw from being over-tightened and to avoid damage to the thread or the oil pan.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] In actual application, the threaded portion 2 of the drain screw is inserted into the drain hole of the oil pan or other container, and the screw body 1 is rotated clockwise to gradually screw the threaded portion 2 into the drain hole until the limit portion 4 contacts the outer edge of the drain hole. The L-shaped limit plate 10 on the limit portion 4 plays a role of physical restriction during the screw tightening process, preventing the screw from being over-tightened and protecting the thread and the oil pan from damage.

[0035] When the oil drain screw is tightened into place, the sealing ring 302 is compressed and closely fits the screw body 1 and the inner wall of the oil drain hole to form a reliable seal.

[0036] The screw plate 6 is arranged in the groove 5 of the limit part 4, and the drain screw can be conveniently rotated manually through the screw plate 6. The side wall of the screw plate 6 is provided with a plurality of X-shaped reinforcing ribs 7, which improves the overall strength and stability of the screw plate and prevents the screw plate from breaking or deforming during operation.

[0037] Each time the drain screw is removed and reinstalled, the sealing ring 302 needs to be checked for damage, aging or deformation to ensure that its sealing effect is not affected.

[0038] In summary, the utility model can effectively improve the overall performance of the oil drain screw, ensure that it can work stably for a long time during use, especially the screw plate, and improve the safety and reliability of operation. By providing the reinforcing ribs 7, the overall strength of the screw plate 6 can be effectively enhanced to prevent the screw plate 6 from being easily broken or deformed during use, thereby extending the service life of the screw plate 6. At the same time, the stability and anti-torsion ability of the screw plate 6 are enhanced to ensure that it maintains a stable working state during operation. By providing the sealing assembly 3, the sealing ring 302 can fit tightly against the inner wall of the screw body 1 to form a reliable seal to prevent leakage of lubricating oil or engine oil. By providing the card slot 8 and the card block 9, it is ensured that the screw plate 6 maintains a stable fixing effect during the operation of the oil drain screw; the design of the gradually decreasing cross-sectional area allows the card block 9 to fit tightly during the deepening process, effectively reducing the risk of the screw plate 6 loosening due to vibration or during use.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil drain screw, comprising a screw body (1), characterized in that: The bottom of the screw body (1) is provided with a threaded portion (2), the middle of the screw body (1) is provided with a sealing assembly (3), the top of the screw body (1) is provided with a limiting portion (4), and the middle of the limiting portion (4) is provided with a groove (5); A twisting plate (6) is arranged in the groove (5), and a side wall of the twisting plate (6) is provided with a plurality of reinforcing ribs (7).

2. The oil drain screw according to claim 1, characterized in that: The reinforcing ribs (7) are arranged in an X-shaped structure, and a plurality of the reinforcing ribs (7) are connected end to end.

3. The oil drain screw according to claim 2, characterized in that: The sealing assembly (3) comprises an annular groove (301) arranged in the middle of the screw body (1), and a sealing ring (302) is arranged in the annular groove (301).

4. The oil drain screw according to claim 3, characterized in that: The groove (5) is provided with a clamping groove (8) on both sides, and clamping blocks (9) are provided on both sides of the screw plate (6) and located in the clamping groove (8).

5. The oil drain screw according to claim 4, characterized in that: The cross-sectional areas of the clamping groove (8) and the clamping block (9) gradually decrease in a direction approaching the threaded portion (2).

6. The oil drain screw according to claim 5, characterized in that: Limiting plates (10) are provided on both sides of the limiting portion (4), and the limiting plates (10) are L-shaped structures.

Images