Wrench with antirust function

Abstract

The utility model relates to the technical field of open wrenches, in particular to a rust-proof wrench which comprises a handle, a push block is slidably connected in the handle, a wrench body is fixedly connected to one end of the push block, a wrench head is arranged at one end of the wrench body, and a protective cover is slidably connected to one end of the handle. A high-density sponge is arranged in the protective cover, an oil cavity is formed in one end of the protective cover, a plurality of oil outlet holes are formed in the side, close to the high-density sponge, of the oil cavity in a penetrating mode, a push plate is slidably connected into the oil cavity, and a screw rod is fixedly connected to one end of the push plate. According to the utility model, the wrench head with the retractable handle is designed, so that the contact with the outside is reduced, and the rusting risk is reduced. Meanwhile, due to the design of the oil drainage cavity in the cover, the wrench head can be conveniently and uniformly oiled, the anti-rust operation is simplified, the use amount of oil and uniform smearing are ensured, and the anti-rust effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of open-end wrenches, in particular to a wrench with an anti-rust function. Background Art

[0002] As a tool widely used in industry, construction and daily life, the performance and service life of the wrench are crucial to work efficiency and safety. However, during the use of the wrench, the working environment is often full of unfavorable factors such as moisture and dust, which can easily cause the wrench to rust, thus affecting its normal use. Rust not only damages the appearance of the wrench, but also may affect the normal function of its function, and may even lead to dangerous situations during use.

[0003] At present, although there are many common methods for rust prevention of wrenches on the market, they all have certain limitations. For example, applying an anti-rust coating is a common anti-rust method, which can isolate moisture and oxygen to a certain extent and protect the wrench. However, after long-term use, the open-end wrench coated with an anti-rust paint layer is prone to collision with other tools during actual carrying, causing the anti-rust paint layer on its surface to fall off, and the area where the anti-rust paint falls off is prone to rust.

[0004] Another common rust prevention method is to apply rust-proof oil regularly. This method is simple to operate and can directly lubricate and rust-proof the surface of the wrench. However, when applying rust-proof oil, the amount of oil used and the uniformity of application are often difficult to control. Too much oil will make the surface of the wrench greasy, which not only affects the user experience, but may also absorb dust and dirt, accelerating the wear of the wrench. Uneven application may result in poor rust prevention effect, and some areas are still prone to rust. Utility Model Content

[0005] The utility model aims to provide a wrench with anti-rust function, so as to solve the problem in the above background technology that the anti-rust coating of the wrench currently on the market is easy to fall off in a collision, and it is difficult to control the amount and uniformity of the oil when applying anti-rust oil. Too much oil will easily cause greasy absorption of dirt, while too little will result in poor rust prevention.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a wrench with anti-rust function, including a handle, a push block is slidably connected to the handle, one end of the push block is fixedly connected to the wrench body, one end of the wrench body is provided with a wrench head, one end of the handle is slidably connected to a protective cover, a high-density sponge is provided inside the protective cover, an oil chamber is opened at one end of the protective cover, a side of the oil chamber close to the high-density sponge is penetrated and opened with a plurality of oil outlet holes, a push plate is slidably connected to the oil chamber, one end of the push plate is fixedly connected to a screw, the screw penetrates the protective cover and is slidably connected, a limiting ring is fixedly connected to the outer side of the protective cover near the screw, a control nut is sleeved on the outer side of the limiting ring, the screw penetrates the control nut for threaded connection, the wrench head and the wrench body wrench surface are respectively provided with a first coating, a second coating and a third coating, and a telescopic mechanism is provided on the surface of the handle, and the telescopic mechanism is used to control the telescopic extension of the wrench body.

[0007] The utility model is further configured that the wrench body and the wrench head are made of alloy steel as a base material, which can improve the strength, toughness and high temperature tolerance of the wrench body and the wrench head.

[0008] The utility model is further configured such that the first coating is made of copper, which can improve the adhesion of the entire coating and also play an anti-corrosion and anti-oxidation role.

[0009] The utility model is further configured such that the second coating is made of copper-nickel alloy, which can improve the adhesion of the entire coating, and can also improve the hardness and wear resistance of the wrench body and the wrench head.

[0010] The utility model is further configured that the third coating layer is made of titanium, which can improve the corrosion resistance of the wrench body and the wrench head, make them less prone to rust, and have excellent wear resistance and high temperature stability.

[0011] The utility model is further configured as follows: the telescopic mechanism includes a protective shell arranged on the side wall of the handle, and also includes a spring 1 fixedly connected to one side of the push block, the other end of the spring 1 is fixedly connected to the inner wall of the handle, a connecting rod 2 is hinged inside the protective shell, and a connecting rod 3 is hinged at one end of the connecting rod 2.

[0012] The utility model is further configured as follows: the connecting rod three penetrates the protective shell and is slidably connected, the other end of the connecting rod two is hinged with the connecting rod one, one end of the connecting rod one extends into the inside of the handle, and the connecting rod one is located inside the handle and is fixedly connected with a top block at one end, a spring two is arranged on the top of the top block, and the top block is adapted to the fixing hole.

[0013] The utility model is further configured such that a plurality of protrusions are arranged on the surface of one end of the handle close to the protective cover, a concave hole is opened on the inner wall of the protective cover at the position corresponding to the protrusion, a groove is opened on the surface of the push plate, and a second sealing ring is arranged inside the groove.

[0014] The utility model is further configured such that a sealing ring is fixedly connected to one end of the handle close to the protective cover, a fixing block is fixedly connected inside one end of the handle close to the protective cover, the wrench body passes through the fixing block and is slidably connected, an oil filling hole is opened on the surface of the protective cover close to the oil chamber, and a sealing bolt is threadedly connected inside the oil filling hole.

[0015] The utility model has the following beneficial effects:

[0016] 1. By designing the wrench head to be retractable into the handle, the direct contact between the wrench head and the external environment is reduced, thereby reducing the risk of rust. At the same time, an oil drain chamber is set inside the cover. By squeezing the oil chamber, the oil can smoothly enter the high-density sponge or oil-absorbing cloth inside the cover, achieving uniform oiling of the wrench head. This design not only simplifies the process of rust prevention operation, but also ensures the amount of oil used and the uniformity of application, effectively improving the rust prevention effect.

[0017] 2. The use of alloy steel as the base material for the wrench body and wrench head significantly improves its strength, toughness and high temperature tolerance. Copper as the first coating enhances the adhesion of the coating and effectively prevents corrosion and oxidation. Copper-nickel alloy as the second coating further enhances adhesion, hardness and wear resistance. Titanium as the third coating greatly improves corrosion resistance and wear resistance, ensuring stability in high temperature environments. These designs together ensure the excellent performance and long-term durability of the wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 This is a three-dimensional structural diagram of a wrench with anti-rust function according to an embodiment of the utility model;

[0020] Figure 2 This is a display diagram of a wrench with rust-proof function according to an embodiment of the utility model;

[0021] Figure 3 A wrench with rust-proof function according to the embodiment of the utility model Figure 2 Sectional view at point A;

[0022] Figure 4 A wrench with rust-proof function according to the embodiment of the utility model Figure 2 Sectional view at point B;

[0023] Figure 5 It is a partial cross-sectional view of a wrench body and a wrench head of a wrench with rust prevention function according to an embodiment of the utility model.

[0024] The markings in the figure are: 1. handle; 2. protective cover; 3. spring 1; 4. fixing block; 5. push block; 6. spanner body; 7. spanner head; 8. fixing hole; 9. sealing ring; 10. protective shell; 11. top block; 12. spring 2; 13. connecting rod 1; 14. connecting rod 2; 15. connecting rod 3; 16. bump; 17. high-density sponge; 18. concave hole; 19. oil chamber; 20. oil outlet hole; 21. sealing bolt; 22. push plate; 23. sealing ring 2; 24. screw; 25. limit ring; 26. control nut; 27. first coating; 28. second coating; 29. ​​third coating. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other; the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limitations of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or a transmission connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements.

[0027] See also Figure 1 , 2 , 3 and Figure 4 , 5A wrench with anti-rust function comprises a handle 1, a push block 5 is slidably connected inside the handle 1, one end of the push block 5 is fixedly connected to a wrench body 6, one end of the wrench body 6 is provided with a wrench head 7, one end of the handle 1 is slidably connected to a protective cover 2, a high-density sponge 17 is provided inside the protective cover 2, an oil chamber 19 is provided at one end of the protective cover 2, a plurality of oil outlet holes 20 are penetrated through the side of the oil chamber 19 close to the high-density sponge 17, a push plate 22 is slidably connected inside the oil chamber 19, one end of the push plate 22 is fixedly connected to a screw rod 24, the screw rod 24 penetrates the protective cover 2 and is slidably connected, a limiting ring 25 is fixedly connected to the outer side of the protective cover 2 near the screw rod 24, a control nut 26 is sleeved on the outer side of the limiting ring 25, and the screw rod 24 penetrates the control nut 26 for threading The wrench head 7 and the wrench body 6 are connected, and the surfaces of the wrench head 7 and the wrench body 6 are provided with a first coating 27, a second coating 28 and a third coating 29 in sequence. A telescopic mechanism is provided on the surface of the handle 1, and the telescopic mechanism is used to control the telescopic extension of the wrench body 6. A plurality of protrusions 16 are provided on the surface of the end of the handle 1 close to the protective cover 2, and a recessed hole 18 is provided on the inner wall of the protective cover 2 at the position corresponding to the protrusion 16. A groove is provided on the surface of the push plate 22, and a sealing ring 23 is provided inside the groove. A sealing ring 9 is fixedly connected to the end of the handle 1 close to the protective cover 2, and a fixing block 4 is fixedly connected inside the end of the handle 1 close to the protective cover 2. The wrench body 6 passes through the fixing block 4 and is slidably connected. An oil filling hole is provided on the surface of the protective cover 2 close to the oil chamber 19, and a sealing bolt 21 is threadedly connected inside the oil filling hole.

[0028] By adopting the above technical solution, the spanner head 7 and the spanner body 6 are stored in the handle 1. When in use, first remove the protective cover 2, press the connecting rod three 15 to pull the top block 11 out of the fixing hole 8, and the spring one 3 pushes the spanner body 6 out for use. When retracting, press the spanner head 7 to press the spanner body 6 back into the handle 1, and the top block 11 is inserted into the fixing hole 8 and fixes the spanner body 6 under the action of the spring two 12. The high-density sponge 17 in the protective cover 2 is adapted to the spanner head 7, and the oil chamber 19 is used to store protective oil. When protection is needed, rotate the control nut 26 to push the push plate 22 to squeeze the oil in the oil chamber 19, and the oil enters the protective cover 2 through the oil outlet 20, and is evenly coated on the surface of the spanner head 7 after being absorbed by the sponge.

[0029] The wrench body 6 and the wrench head 7 are made of alloy steel as the base material, which can improve the strength, toughness and high temperature tolerance of the wrench body 6 and the wrench head 7. The first plating layer 27 is made of copper, which can improve the adhesion of the overall plating and also play an anti-corrosion and anti-oxidation role. The second plating layer 28 is made of copper-nickel alloy, which can improve the adhesion of the overall plating and also improve the hardness and wear resistance of the wrench body 6 and the wrench head 7. The third plating layer 29 is made of titanium, which can improve the corrosion resistance of the wrench body 6 and the wrench head 7, make them not easy to rust, have excellent wear resistance and high temperature stability.

[0030] By adopting the above technical solution, the wrench body 6 and the wrench head 7 are made of alloy steel to enhance strength, toughness and high temperature tolerance. The first coating 27 is copper to improve adhesion and prevent corrosion and oxidation. The second coating 28 is copper-nickel alloy to enhance adhesion, hardness and wear resistance. The third coating 29 is titanium to enhance corrosion resistance, wear resistance and high temperature stability.

[0031] The telescopic mechanism includes a protective shell 10 arranged on the side wall of the handle 1, and also includes a spring 3 fixedly connected to one side of the push block 5, the other end of the spring 3 is fixedly connected to the inner wall of the handle 1, a connecting rod 2 14 is hinged inside the protective shell 10, one end of the connecting rod 2 14 is hinged to a connecting rod 3 15, the connecting rod 3 15 passes through the protective shell 10 and is slidably connected, the other end of the connecting rod 2 14 is hinged to a connecting rod 13, one end of the connecting rod 13 extends to the inside of the handle 1, and the connecting rod 13 is located inside the handle 1. One end is fixedly connected to a top block 11, and a spring 2 12 is arranged on the top of the top block 11, and the top block 11 is adapted to the fixing hole 8.

[0032] By adopting the above technical solution, the connecting rod three 15 is pressed, and the connecting rod three 15 presses one end of the connecting rod two 14 downward, and then one end of the connecting rod two 14 moves upward, and the connecting rod one 13 is pulled upward while moving upward. The upward movement of the connecting rod one 13 will pull the top block 11 out of the fixing hole 8, and then the spring one 3 will push the wrench body 6 out of the handle 1 through the push block 5. When the wrench body 6 is retracted, the wrench head 7 is pressed to press the wrench body 6 into the handle 1, driving the fixing hole 8 to the bottom of the top block 11, and then the spring two 12 will push the lower end of the top block 11 to get stuck in the fixing hole 8, and then the wrench body 6 can be fixed.

[0033] The working principle of the utility model is that the anti-rust coating of the wrench on the market is easy to fall off in a collision. It is difficult to control the amount and uniformity of the oil when applying anti-rust oil. Too much oil is easy to absorb dirt, and too little is not good for rust prevention. Usually, the wrench head 7 and the wrench body 6 are stored in the handle 1. When in use, first pull the protective cover 2, remove the protective cover 2 from the handle 1, and then press the connecting rod three 15, the connecting rod three 15 presses down one end of the connecting rod two 14 to move downward, and then one end of the connecting rod two 14 moves upward. When the lever 6 is pulled upward, the connecting rod 13 is pulled upward, and the upward movement of the connecting rod 13 will pull the top block 11 out of the fixing hole 8, and then the spring 13 will push the wrench body 6 out of the handle 1 through the push block 5. After the wrench body 6 is pushed out, it can be used. When the wrench body 6 is retracted, the wrench head 7 is pressed to press the wrench body 6 into the handle 1, driving the fixing hole 8 to the bottom of the top block 11, and then the spring 2 12 will push the lower end of the top block 11 into the fixing hole 8, and then the wrench body 6 can be fixed;

[0034] Then connect the protective cover 2 to the handle 1. The internal shape of the high-density sponge 17 in the protective cover 2 is adapted to the wrench head 7. The wrench head 7 is inserted into the high-density sponge 17. The oil chamber 19 is used to place the protective oil. The sealing bolt 21 can be removed to inject the protective oil into the oil chamber 19. When the protective oil needs to enter the protective cover 2 to protect the wrench head 7, the control nut 26 is rotated. The screw 24 is controlled to move by rotating the control nut 26. The movement of the screw 24 pushes the push plate 22 to move. The push plate 22 moves to squeeze the protective oil in the oil chamber 19, and the protective oil is squeezed. The protective oil will enter the protective cover 2 through the oil outlet hole 20 when the pressure is applied. After entering the protective cover 2, the protective oil will be absorbed by the high-density sponge 17, and then the high-density sponge 17 will evenly apply the protective oil on the surface of the wrench head 7. The oil outlet holes 20 are small and dense. Normally, the protective oil will not pass through the oil outlet holes 20. The small and dense oil outlet holes 20 are used to make the oil outlet uniform. The protrusion 16 on the handle 1 is used to be stuck in the concave hole 18 of the protective cover 2, which is mainly used to fix the protective cover 2. The sealing ring 9 between the handle 1 and the protective cover 2 is used to maintain sealing when the two are connected.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0036] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A wrench with rust-proof function, comprising a handle (1), characterized in that: A push block (5) is slidably connected inside the handle (1), one end of the push block (5) is fixedly connected to a wrench body (6), one end of the wrench body (6) is provided with a wrench head (7), one end of the handle (1) is slidably connected to a protective cover (2), a high-density sponge (17) is provided inside the protective cover (2), one end of the protective cover (2) is provided with an oil chamber (19), a side of the oil chamber (19) close to the high-density sponge (17) is penetrated with a plurality of oil outlet holes (20), a push plate (22) is slidably connected inside the oil chamber (19), one end of the push plate (22) is fixedly connected to a screw rod (24), the screw rod (24) penetrates the protective cover (2) and is slidably connected, a limiting ring (25) is fixedly connected to the outer side of the protective cover (2) near the screw rod (24), a control nut (26) is sleeved on the outer side of the limiting ring (25), and the screw rod (24) penetrates the control nut (26) for threaded connection; The wrench head (7) and the wrench body (6) are provided with a first coating (27), a second coating (28) and a third coating (29) in sequence on their surfaces, and the handle (1) is provided with a telescopic mechanism on its surface, the telescopic mechanism being used to control the telescopic movement of the wrench body (6).

2. The wrench with rust-proof function according to claim 1, characterized in that: The wrench body (6) and the wrench head (7) are made of alloy steel as a base material, which can improve the strength, toughness and high temperature tolerance of the wrench body (6) and the wrench head (7).

3. The wrench with rust-proof function according to claim 1, characterized in that: The first coating (27) is made of copper, which can improve the adhesion of the entire coating and also play an anti-corrosion and anti-oxidation role.

4. The wrench with rust-proof function according to claim 1, characterized in that: The second coating (28) is made of a copper-nickel alloy, which can improve the adhesion of the entire coating and can also improve the hardness and wear resistance of the wrench body (6) and the wrench head (7).

5. The wrench with rust-proof function according to claim 1, characterized in that: The third coating (29) is made of titanium, which can improve the corrosion resistance of the wrench body (6) and the wrench head (7), making them less prone to rust, and providing excellent wear resistance and high temperature stability.

6. The wrench with rust-proof function according to claim 1, characterized in that: The telescopic mechanism comprises a protective shell (10) arranged on the side wall of the handle (1), and also comprises a spring one (3) fixedly connected to one side of the push block (5), the other end of the spring one (3) being fixedly connected to the inner wall of the handle (1), a connecting rod two (14) being hinged inside the protective shell (10), and a connecting rod three (15) being hinged at one end of the connecting rod two (14).

7. The wrench with rust-proof function according to claim 6, characterized in that: The third connecting rod (15) passes through the protective shell (10) and is slidably connected. The other end of the second connecting rod (14) is hinged with the first connecting rod (13). One end of the first connecting rod (13) extends into the interior of the handle (1). One end of the first connecting rod (13) located inside the handle (1) is fixedly connected with a top block (11). A second spring (12) is arranged on the top of the top block (11). The top block (11) is adapted to the fixing hole (8).

8. The wrench with rust-proof function according to claim 1, characterized in that: A plurality of protrusions (16) are arranged on the surface of one end of the handle (1) close to the protective cover (2); a concave hole (18) is provided on the inner wall of the protective cover (2) at a position corresponding to the protrusion (16); a groove is provided on the surface of the push plate (22); and a second sealing ring (23) is provided inside the groove.

9. The wrench with rust-proof function according to claim 1, characterized in that: The end of the handle (1) close to the protective cover (2) is fixedly connected to a sealing ring (9); the end of the handle (1) close to the protective cover (2) is internally fixedly connected to a fixing block (4); the wrench body (6) passes through the fixing block (4) and is slidably connected; an oil filling hole is opened on the surface of the protective cover (2) close to the oil chamber (19); a sealing bolt (21) is threadedly connected to the inside of the oil filling hole.

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