Oil suction gun with anti-blocking structure

Abstract

This utility model discloses a suction gun with an anti-clogging structure, relating to the field of suction gun technology. It includes a suction gun body, a piston, a connecting cap, a suction tube, and a pull rod. The bottom end of the suction gun body is threadedly connected to the connecting cap, and the bottom end of the connecting cap is fixedly connected to the suction tube. A piston is slidably disposed inside the suction gun body, and a pull rod is fixed to the top of the piston. A fixing plate is fixed to the bottom end of the piston, and fixing blocks are provided on both sides of the bottom end of the fixing plate. This utility model uses a stainless steel filter screen to initially filter the absorbed grease. With the help of a second filter screen and a first filter screen, it facilitates further filtration of impurities in the grease, ensuring the purity of the grease. This operation reduces the chance of the suction gun body directly contacting large particles of impurities, thereby reducing the frequency of clogging and improving its practicality.

Description

Technical Field

[0001] This utility model relates to the field of oil suction gun technology, and in particular to an oil suction gun with an anti-clogging structure. Background Technology

[0002] Oil suction guns are devices used to suction and discharge oil, including manual oil suction guns. They are simple and practical mechanical tools that are widely used in industries such as auto repair and machining to help users easily transfer liquids to another container while avoiding excessive waste and environmental pollution.

[0003] A suction gun with an anti-clogging structure, disclosed in announcement number CN220957859U, includes a suction gun body with a suction plug slidably connected therein. A connecting cover is threaded to the bottom of the suction gun body, and an oil outlet pipe is fixedly connected to the connecting cover. An anti-clogging structure is provided in the suction plug, and a button is slidably connected to the top of the suction plug. This suction gun with an anti-clogging structure, when the button is pressed, drives the sliding column and connecting column to move, which in turn drives the spring plate. This causes the spring plate to disengage from the slot, causing a wedge-shaped column fitted in the spring plate to move up and down. The air pressure during the wedge-shaped column's movement pushes the grease in the suction gun body forward. The spring plate, through a spring connected to the connecting column, causes the wedge-shaped column to reset, thus resetting the spring plate back into the slot. Finally, by repeatedly pressing the button, the wedge-shaped column moves multiple times, clearing the grease from the suction gun body.

[0004] However, existing oil suction guns with anti-clogging structures still have the following drawbacks in use: The existing technology involves pulling the oil suction plug to draw the grease into the oil suction gun body. However, in actual use, the above operation does not have a filtering function, which allows impurities in the grease to enter the oil suction gun body, causing blockage and reducing its working efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide an oil suction gun with an anti-clogging structure to solve the problem mentioned in the background art that the existing oil suction guns do not have an anti-clogging function during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil suction gun with an anti-clogging structure, comprising an oil suction gun body, a piston, a connecting cover, an oil suction pipe, and a pull rod. The bottom end of the oil suction gun body is threadedly connected to the connecting cover, and the bottom end of the connecting cover is fixedly connected to the oil suction pipe. The piston is slidably arranged inside the oil suction gun body, and the top end of the piston is fixedly connected to the pull rod.

[0007] The piston is fixed to a fixing plate at its bottom end. Fixing blocks are provided on both sides of the bottom end of the fixing plate. A scraper is attached to one side of the fixing block with glue. A limiting mechanism is provided inside the fixing block. A filtering mechanism is provided inside the connecting cover.

[0008] When using a grease suction gun with an anti-clogging structure according to this technical solution, the grease entering the grease suction gun body can be filtered by the filter mechanism during use, thereby preventing the grease suction gun body from becoming clogged and achieving the purpose of anti-clogging.

[0009] Furthermore, the filtration mechanism includes a stainless steel filter screen, which is disposed inside the connecting cover. A second filter screen is disposed at the top of the stainless steel filter screen, and a first filter screen is adhered to the top of the second filter screen.

[0010] Furthermore, the first filter screen has a circular cross-section and is made of polyester fiber.

[0011] Furthermore, the second filter screen is disposed between the first filter screen and the stainless steel filter screen, and the material of the second filter screen is glass fiber.

[0012] Furthermore, the limiting mechanism includes a mounting block, which is disposed inside the fixed block. A return spring is fixed inside the mounting block, a baffle is fixed on one side of the return spring, and a limiting rod is provided on one side of the baffle.

[0013] Furthermore, there are two reset springs, which are symmetrically distributed and are both made of stainless steel.

[0014] Furthermore, there are two limiting rods, and each of the two limiting rods has a limiting groove on its outer side, and the limiting groove is opened inside the fixing plate.

[0015] Furthermore, the scraper is made of polytetrafluoroethylene, and the outer side of the scraper is uniformly coated with a corrosion-resistant coating, and the cross-section of the scraper is annular.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the oil suction gun with anti-clogging structure not only has the function of preventing clogging, but also has the function of cleaning;

[0017] By incorporating a stainless steel filter, the absorbed butter can be initially filtered. Furthermore, the second and first filters facilitate further filtration of impurities in the butter, ensuring its purity. This process reduces the chance of the suction gun directly contacting large particles, thereby reducing clogging frequency and improving its practicality.

[0018] By pushing the scraper, the fixing block is inserted into the interior of the fixing plate. During the insertion process, the two limiting rods are squeezed, causing the limiting rods to retract into the interior of the mounting block until one side of the fixing block and one side of the fixing plate are in contact with each other. Under the action of the return spring and the baffle, the limiting rod extends out from the interior of the mounting block, which makes it easier to fix the scraper to the bottom of the piston. Then, when the pull rod is pushed, the scraper can scrape and clean the inner wall of the oil suction gun body, thereby reducing the waste of resources. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 2 This is a side view sectional structural diagram of the present invention;

[0022] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the filtration mechanism of this utility model;

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the front cross-section of the fixing block of this utility model.

[0025] The reference numerals in the diagram are as follows: 1. Oil suction gun body; 2. Piston; 3. Fixing block; 4. Connecting cover; 5. Oil suction pipe; 6. Filtering mechanism; 601. First filter screen; 602. Second filter screen; 603. Stainless steel filter screen; 7. Fixing plate; 8. Pull rod; 9. Scraper; 10. Limiting mechanism; 1001. Baffle; 1002. Return spring; 1003. Mounting block; 1004. Limiting rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figures 1-5 An embodiment of this utility model is provided: an oil suction gun with an anti-clogging structure, including an oil suction gun body 1, a piston 2, a connecting cover 4, an oil suction pipe 5, and a pull rod 8. The bottom end of the oil suction gun body 1 is threadedly connected to the connecting cover 4, and the bottom end of the connecting cover 4 is fixedly connected to the oil suction pipe 5. The piston 2 is slidably arranged inside the oil suction gun body 1, and the top end of the piston 2 is fixed to the pull rod 8. The bottom end of the piston 2 is fixed to the fixing plate 7. Fixing blocks 3 are provided on both sides of the bottom end of the fixing plate 7. A scraper 9 is glued to one side of the fixing block 3.

[0028] The scraper 9 is made of polytetrafluoroethylene. The outer side of the scraper 9 is uniformly coated with a corrosion-resistant coating, and the cross-section of the scraper 9 is annular.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, during use, the scraper 9 is provided, and the scraper 9 is made of a special material, which makes it have strong wear resistance and corrosion resistance, thus making it easy to clean the grease residue on the inner wall of the oil suction gun body 1, thereby improving its practicality.

[0030] The interior of the fixed block 3 is all equipped with the limiting mechanism 10;

[0031] The limiting mechanism 10 includes a mounting block 1003, which is disposed inside the fixing block 3. A reset spring 1002 is fixed inside the mounting block 1003. A baffle 1001 is fixed on one side of the reset spring 1002, and a limiting rod 1004 is provided on one side of the baffle 1001.

[0032] There are two reset springs 1002, which are symmetrically distributed and are made of stainless steel.

[0033] There are two limit rods 1004, and each of the two limit rods 1004 has a limit groove on its outer side, and the limit groove is opened inside the fixing plate 7.

[0034] Specifically, such as Figure 5As shown, during use, the reset spring 1002 pushes the mounting block 1003 to move, thereby causing one end of the limit rod 1004 to extend from the inside of the fixing plate 7, which facilitates the fixing of the fixing block 3, and then facilitates the fixing of the scraper 9 to the bottom of the piston 2. Thus, the inner wall of the oil suction gun body 1 can be cleaned during the pushing and pulling of the piston 2, thereby reducing the waste of resources.

[0035] The connecting cover 4 is equipped with a filter mechanism 6 inside;

[0036] The filter mechanism 6 includes a stainless steel filter screen 603, which is disposed inside the connecting cover 4. A second filter screen 602 is disposed at the top of the stainless steel filter screen 603, and a first filter screen 601 is attached to the top of the second filter screen 602.

[0037] The first filter screen 601 has a circular cross-section and is made of polyester fiber.

[0038] The second filter 602 is disposed between the first filter 601 and the stainless steel filter 603, and the material of the second filter 602 is glass fiber.

[0039] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, during use, the stainless steel filter screen 603 facilitates the filtration of grease entering the oil suction gun body 1 by means of the second filter screen 602 and the first filter screen 601, thereby preventing impurities from entering the oil suction gun body 1 and reducing the risk of clogging of the oil suction gun body 1.

[0040] Working Principle: In use, this invention first inserts the fixing block 3 into the fixing plate 7 by pushing the scraper 9. As the fixing block 3 inserts, it presses against the two limiting rods 1004, causing the two baffles 1001 to move horizontally relative to each other. Simultaneously, the movement of the baffles 1001 presses against the return spring 1002, compressing it until the limiting rods 1004 retract into the mounting block 1003. During the continuous pushing of the fixing block 3, one side of the fixing block 3 comes into contact with the fixing plate 7, thus achieving the reset... When the spring 1002 is compressed, the force disappears, thus pushing the baffle 1001 to a horizontal position. This facilitates the pushing of the limiting rod 1004 out of the mounting block 1003, allowing one end of the limiting rod 1004 to extend from the inside of the fixing plate 7. This operation facilitates the fixing of the fixing block 3, which in turn facilitates the fixing of the scraper 9 to the bottom of the piston 2. When the piston 2 moves up and down by pushing and pulling the lever 8, the scraper 9 can move up and down synchronously, which facilitates the scraping and cleaning of the grease adhering to the inner wall of the oil suction gun body 1, thereby reducing resource waste and improving resource utilization.

[0041] Then, stainless steel filter screen 603 and second filter screen 602 are sequentially placed inside the connecting cover 4 along with the first filter screen 601. The connecting cover 4 is then screwed on to connect it to the grease gun body 1 until one side of the first filter screen 601 is in contact with the other side of the grease gun body 1. Pulling the lever 8 causes the piston 2 to rise, facilitating the absorption of grease into the grease gun body 1. During absorption, the grease preferentially passes through the stainless steel filter screen 603, which filters out large particles mixed in the grease, preventing them from affecting the second filter screen 602 and the first filter screen 601, thus extending their service life. The second filter screen 602 further purifies the grease, reducing the risk of clogging the first filter screen 601. Simultaneously, the first filter screen 601 ensures the purity of the grease, reducing the chance of the grease gun directly contacting large impurities and lowering the clogging frequency. These operations improve the service life of the grease gun body 1.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oil suction gun with an anti-clogging structure, comprising an oil suction gun body (1), a piston (2), a connecting cover (4), an oil suction pipe (5), and a pull rod (8), wherein the bottom end of the oil suction gun body (1) is threadedly connected to the connecting cover (4), and the bottom end of the connecting cover (4) is fixedly connected to the oil suction pipe (5), wherein the piston (2) is slidably arranged inside the oil suction gun body (1), and the top end of the piston (2) is fixedly connected to the pull rod (8); Its features are: The piston (2) is fixed with a fixing plate (7) at the bottom end. Fixing blocks (3) are provided on both sides of the bottom end of the fixing plate (7). A scraper (9) is attached to one side of the fixing block (3) by glue. A limiting mechanism (10) is provided inside the fixing block (3). A filtering mechanism (6) is provided inside the connecting cover (4).

2. The oil suction gun with an anti-clogging structure according to claim 1, characterized in that: The filtration mechanism (6) includes a stainless steel filter screen (603), and the stainless steel filter screen (603) is disposed inside the connecting cover (4). A second filter screen (602) is disposed at the top of the stainless steel filter screen (603), and a first filter screen (601) is adhered to the top of the second filter screen (602).

3. The oil suction gun with an anti-clogging structure according to claim 2, characterized in that: The first filter screen (601) has a circular cross-section and is made of polyester fiber.

4. The oil suction gun with an anti-clogging structure according to claim 2, characterized in that: The second filter screen (602) is disposed between the first filter screen (601) and the stainless steel filter screen (603), and the material of the second filter screen (602) is glass fiber.

5. The oil suction gun with an anti-clogging structure according to claim 1, characterized in that: The limiting mechanism (10) includes a mounting block (1003), and the mounting block (1003) is disposed inside the fixing block (3). A reset spring (1002) is fixed inside the mounting block (1003). A baffle (1001) is fixed on one side of the reset spring (1002), and a limiting rod (1004) is provided on one side of the baffle (1001).

6. The oil suction gun with an anti-clogging structure according to claim 5, characterized in that: There are two reset springs (1002), which are symmetrically distributed and are made of stainless steel.

7. The oil suction gun with an anti-clogging structure according to claim 5, characterized in that: There are two limiting rods (1004), and each of the two limiting rods (1004) has a limiting groove on its outer side. The limiting groove is opened inside the fixing plate (7).

8. The oil suction gun with an anti-clogging structure according to claim 1, characterized in that: The scraper (9) is made of polytetrafluoroethylene, and the outer side of the scraper (9) is uniformly coated with a corrosion-resistant coating. The cross-section of the scraper (9) is annular.

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