Portable pump station special for hydraulic wrench

Abstract

The utility model belongs to the field of pumps special for hydraulic wrenches, and particularly relates to a portable pump station special for hydraulic wrenches, which comprises an oil tank, a handle is fixedly connected to the top of the oil tank, moving wheels are fixedly connected to the bottom of the oil tank, and a motor is fixedly connected to the left side of the top of the oil tank. The right side of the top of the oil tank fixedly communicates with a feeding port, the back side of the surface of the oil tank is fixedly connected with a liquid level meter, and the front side of the surface of the oil tank fixedly communicates with a first oil outlet; hydraulic oil flows into the filter box, large particles in the hydraulic oil are filtered through the third filter screen, then metal impurities in the hydraulic oil are filtered through the second filter screen, small impurities in the hydraulic oil are filtered through the first filter screen, and then the hydraulic oil is discharged into the oil tank through the discharging pipe, so that the layer-by-layer filtering effect is achieved; the problems that after a single-layer filter screen is used for a long time, the filtering effect is gradually reduced, and even a filter element is blocked are solved.

Description

Technical Field

[0001] The utility model relates to the field of special pumps for hydraulic wrenches, and specifically to a portable special pump station for hydraulic wrenches. Background Art

[0002] A portable special pump for a hydraulic wrench is a hydraulic component that provides a power source for the hydraulic wrench. It belongs to the category of professional pump stations. It uses liquid as the pressure medium and transmits the power source to the hydraulic wrench through a hose to achieve efficient disassembly and assembly operations of fasteners. This type of pump usually has the characteristics of small size, light weight, easy to carry and operate, and is very suitable for use outdoors or in places with limited space. During the operation of the portable special pump for a hydraulic wrench, impurities will inevitably be mixed into the hydraulic oil. Once impurities are mixed into the hydraulic oil, the performance of the hydraulic oil will be affected.

[0003] Traditional hydraulic oil filtration directly uses a single-layer filter screen in the fuel tank. After long-term use, the filtration effect of this filtration method will gradually decline, and even the filter element will be blocked. The blockage will cause the impurities in the hydraulic oil not to be filtered out, affecting the operation of the portable special pump for a hydraulic wrench. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, that is, the filtration effect of the single-layer filter screen will gradually decline after long-term use, and even the filter element will be blocked, the utility model proposes a portable special pump station for a hydraulic wrench.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a portable special pump station for a hydraulic wrench, including a fuel tank. A handle is fixedly connected to the top of the fuel tank, and a moving wheel is fixedly connected to the bottom of the fuel tank. A motor is fixedly connected to the left side of the top of the fuel tank, and a feeding port is fixedly connected and communicated to the right side of the top of the fuel tank. A liquid level gauge is fixedly connected to the back side of the surface of the fuel tank, and a first oil outlet is fixedly connected and communicated to the front side of the surface of the fuel tank. A second oil pipe is fixedly connected and communicated to the top of the first oil outlet. One end of the second oil pipe is fixedly connected and communicated to a hydraulic valve, and the bottom of the hydraulic valve is fixedly connected to the front side of the top of the fuel tank. A second oil outlet and a third oil pipe are fixedly connected and communicated to the surface of the hydraulic valve. One end of the third oil pipe is fixedly connected and communicated to a cooler, and the bottom of the cooler is fixedly connected to the back side of the top of the fuel tank. The other end of the third oil pipe is fixedly connected to a regulating valve, and a pressure gauge is fixedly connected to the top of the third oil pipe. A filtering mechanism is provided on the top of the fuel tank;

[0006] The filtering mechanism includes a first oil pipe, one end of the first oil pipe is fixedly communicated with the top of the cooler, the other end of the first oil pipe is fixedly communicated with a filtering box, the bottom of the filtering box is fixedly communicated with a feeding pipe, the bottom of the feeding pipe is fixedly communicated with the top of an oil tank, a connecting groove is formed in the inner wall of the filtering box, the number of the connecting grooves is three, a bracket is movably connected inside the connecting groove, a first filter screen, a second filter screen and a third filter screen are respectively fixedly connected inside the bracket, and a clamping mechanism is arranged on the surface of the filtering box.

[0007] Preferably, a connecting plate is fixedly connected to the surface of the bracket, and a handrail is fixedly connected to the surface of the connecting plate.

[0008] Preferably, the aperture size of the first filter screen is 50-100 microns, the aperture size of the third filter screen is 25-50 microns, and the second filter screen is a magnetic filter screen.

[0009] Preferably, a sealing ring is fixedly connected to the surface of the bracket, and the surface of the sealing ring is movably connected to the inside of the connecting groove.

[0010] Preferably, a first hook is fixedly connected to the left side of the top of the oil tank, a fourth oil pipe is movably connected inside the first hook, a second hook is fixedly connected to the left side of the oil tank, and a hydraulic wrench body is movably connected inside the second hook.

[0011] Preferably, the clamping mechanism includes a fixing groove and a threaded ring, the fixing groove is formed in the surface of the filtering box, the surface of the threaded ring is fixedly connected to the surface of the connecting plate, a threaded rod is threadedly connected to the inner wall of the threaded ring, and the rear end of the threaded rod is rotatably connected to a connecting block through a bearing.

[0012] Preferably, the connecting block is movably connected to the inside of the fixing groove, a connecting rod is fixedly connected to the inside of the connecting block, and a clamping block is movably connected to the surface of the connecting rod.

[0013] Preferably, the surface of the clamping block is movably connected to the inside of the fixing groove, a spring is fixedly connected to the inside of the clamping block, a moving groove is formed in the inside of the clamping block, and a fixing rod is movably connected to the inside of the moving groove, and the top and the bottom of the fixing rod are fixedly connected to the inner wall of the fixing groove.

[0014] The beneficial effects of the present utility model are as follows:

[0015] In this utility model, hydraulic oil flows into the filter box. Larger particles in the hydraulic oil are filtered by the third filter screen, then metal impurities in the hydraulic oil are filtered by the second filter screen, and then smaller impurities in the hydraulic oil are filtered by the first filter screen. Subsequently, it is discharged into the fuel tank through the feeding pipe, achieving the effect of layer-by-layer filtration, and solving the problem that the filtration effect of a single filter screen gradually decreases after long-term use and even leads to filter element blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 It is a schematic diagram of the liquid level gauge, the first hook and the second hook structures of this utility model;

[0019] Figure 3 It is an exploded connection diagram of the filter box and the feeding pipe of this utility model;

[0020] Figure 4 It is a cross-sectional view of the fixing groove, the threaded rod and the threaded ring structures of this utility model;

[0021] Figure 5 For this utility model Figure 4 The enlarged structure schematic diagram at position A.

[0022] In the figure: 1. Fuel tank; 2. Filter mechanism; 201. First oil pipe; 202. Filter box; 203. Feeding pipe; 204. Bracket; 205. Connecting plate; 206. Connecting groove; 207. Sealing ring; 208. First filter screen; 209. Second filter screen; 210. Third filter screen; 211. Handrail; 3. Clamping mechanism; 301. Fixing groove; 302. Threaded ring; 303. Threaded rod; 304. Connecting block; 305. Spring; 306. Connecting rod; 307. Fixed rod; 308. Moving groove; 309. Clamping block; 4. First oil outlet; 5. Handle; 6. Moving wheel; 7. Second oil pipe; 8. Hydraulic valve; 9. Motor; 10. Third oil pipe; 11. Pressure gauge; 12. Regulating valve; 13. Inlet; 14. Cooler; 15. Second oil outlet; 16. Liquid level gauge; 17. First hook; 18. Second hook; 19. Fourth oil pipe; 20. Hydraulic wrench body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The following will be further described in detail with reference to the attached Figures 1-5 This application will be further described in detail.

[0025] The embodiment of this application discloses a special pump station for a portable hydraulic wrench. Refer to Figure 1 and Figure 2 A special pump station for a portable hydraulic wrench includes an oil tank 1. A handle 5 is fixedly connected to the top of the oil tank 1. Movable wheels 6 are fixedly connected to the bottom of the oil tank 1. A motor 9 is fixedly connected to the left side of the top of the oil tank 1. A feeding port 13 is fixedly communicated with the right side of the top of the oil tank 1. A liquid level gauge 16 is fixedly connected to the back side of the surface of the oil tank 1. A first oil outlet 4 is fixedly communicated with the front side of the surface of the oil tank 1. A second oil pipe 7 is fixedly communicated with the top of the first oil outlet 4. One end of the second oil pipe 7 is fixedly communicated with a hydraulic valve 8. The bottom of the hydraulic valve 8 is fixedly connected to the front side of the top of the oil tank 1. A second oil outlet 15 and a third oil pipe 10 are fixedly communicated with the surface of the hydraulic valve 8. One end of the third oil pipe 10 is fixedly communicated with a cooler 14. The bottom of the cooler 14 is fixedly connected to the back side of the top of the oil tank 1. The other end of the third oil pipe 10 is fixedly connected to a regulating valve 12. A pressure gauge 11 is fixedly connected to the top of the third oil pipe 10. A filtering mechanism 2 is provided on the top of the oil tank 1;

[0026] The filtering mechanism 2 includes a first oil pipe 201. One end of the first oil pipe 201 is fixedly communicated with the top of the cooler 14. The other end of the first oil pipe 201 is fixedly communicated with a filtering box 202. A blanking pipe 203 is fixedly communicated with the bottom of the filtering box 202. The bottom of the blanking pipe 203 is fixedly communicated with the top of the oil tank 1. Connecting grooves 206 are formed in the inner wall of the filtering box 202. The number of the connecting grooves 206 is three. A support 204 is movably connected to the inside of the connecting grooves 206. A first filter screen 208, a second filter screen 209 and a third filter screen 210 are respectively fixedly connected to the inside of the support 204. A clamping mechanism 3 is provided on the surface of the filtering box 202.

[0027] Refer to Figure 3 A connecting plate 205 is fixedly connected to the surface of the support 204. A handrail 211 is fixedly connected to the surface of the connecting plate 205. Through the arrangement of the connecting plate 205 and the handrail 211, when the handrail 211 is pulled, the three supports 204 can be all pulled out through the connecting plate 205, which is convenient for cleaning the supports 204 after being pulled out;

[0028] Refer toFigure 3 The screen hole size of the first filter screen 208 is 50 - 100 microns, the screen hole size of the third filter screen 210 is 25 - 50 microns, the second filter screen 209 is a magnetic filter screen. Through the setting of the third filter screen 210, larger impurities in the hydraulic oil can be filtered. Through the setting of the magnetic filter screen of the second filter screen 209, iron-containing impurities in the hydraulic oil can be adsorbed, which can reduce the filtration burden of the first filter screen 208. Through the setting of the first filter screen 208, smaller impurities in the hydraulic oil can be filtered;

[0029] Refer to Figure 3 On the surface of the bracket 204, a sealing ring 207 is fixedly connected. The surface of the sealing ring 207 is movably connected to the inside of the connecting groove 206. Through the setting of the sealing ring 207, there is no gap at the connection between the bracket 204 and the connecting groove 206, preventing the hydraulic oil in the filter tank 202 from flowing out;

[0030] Refer to Figure 2 On the left side of the top of the fuel tank 1, a first hook 17 is fixedly connected. Inside the first hook 17, a fourth oil pipe 19 is movably connected. On the left side of the fuel tank 1, a second hook 18 is fixedly connected. Inside the second hook 18, a hydraulic wrench body 20 is movably connected. Through the setting of the first hook 17 and the second hook 18, the fourth oil pipe 19 and the hydraulic wrench body 20 have a better storage position on the fuel tank 1, facilitating the taking and placing of the fourth oil pipe 19 and the hydraulic wrench body 20;

[0031] Refer to Figure 4 and Figure 5 The clamping mechanism 3 includes a fixing groove 301 and a threaded ring 302. The fixing groove 301 is opened on the surface of the filter tank 202. The surface of the threaded ring 302 is fixedly connected to the surface of the connecting plate 205. The inner wall of the threaded ring 302 is threadedly connected to a threaded rod 303. The rear end of the threaded rod 303 is rotatably connected to a connecting block 304 through a bearing. Through the setting of the threaded ring 302, when the threaded rod 303 rotates, it will drive the connecting block 304 to move outwards, and make the clamping block 309 contract inwards, so that the clamping block 309 can be taken out and the connecting plate 205 is no longer fixed to the filter tank 202;

[0032] Refer to Figure 4 and Figure 5 The connecting block 304 is movably connected to the inside of the fixing groove 301. Inside the connecting block 304, a connecting rod 306 is fixedly connected. The surface of the connecting rod 306 is movably connected to a clamping block 309. Through the setting of the connecting rod 306, when the connecting block 304 moves outwards, it drives the clamping block 309 to move through the connecting rod 306, and the clamping block 309 can rotate on the surface of the connecting rod 306. When the clamping block 309 rotates, when the connecting block 304 moves inwards, it drives the clamping block 309 to move through the connecting rod 306;

[0033] Reference Figure 4 and Figure 5 The surface of the clamping block 309 is movably connected to the inside of the fixing groove 301. A spring 305 is fixedly connected inside the clamping block 309. A moving groove 308 is formed inside the clamping block 309. A fixing rod 307 is movably connected inside the moving groove 308. The top and bottom of the fixing rod 307 are fixedly connected to the inner wall of the fixing groove 301. Through the setting of the spring 305, after the clamping block 309 is deformed, the clamping block 309 can be restored to its original state by the tension of the spring 305, so that the clamping block 309 can be fixed inside the fixing groove 301. Through the setting of the fixing rod 307, the clamping block 309 can contract inward when pulled backward.

[0034] Working principle: When in use, the hydraulic oil flows into the filter box 202 through the first oil pipe 201. The larger impurities in the hydraulic oil are filtered by the third filter screen 210, the metal impurities in the hydraulic oil are filtered by the second filter screen 209, and the smaller impurities in the hydraulic oil are filtered by the first filter screen 208. Then it is discharged into the fuel tank 1 through the blanking pipe 203. When the filter screen needs to be cleaned, only need to rotate the threaded rod 303. The threaded rod 303 moves outward through the engagement with the thread ring 302. The movement of the threaded rod 303 drives the connecting block 304 to move outward. The connecting block 304 drives the connecting rod 306 to move outward. The connecting rod 306 drives the clamping block 309 to move outward. The clamping block 309 contracts inward through the fixing rod 307 in the moving groove 308. Then the clamping block 309 disengages from the inside of the fixing groove 301. Then pull the handrail 211 to drive the connecting plate 205 to move outward. The connecting plate 205 drives the bracket 204 to move outward. Then the bracket 204 can be taken out to clean the first filter screen 208, the second filter screen 209 and the third filter screen 210. When putting it in, align the first filter screen 208, the second filter screen 209 and the third filter screen 210 and put them into the connecting groove 206. Then turn the threaded rod 303. The threaded rod 303 drives the connecting block 304 to move inward through the engagement with the thread ring 302. Then the connecting block 304 drives the connecting rod 306 to move inward. The connecting rod 306 drives the clamping block 309 to move inward. The clamping block 309 is opened by the elastic force of the spring 305 and is clamped into the inside of the fixing groove 301 to complete the fixation.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A special pump station for a portable hydraulic wrench, characterized in that: It includes a fuel tank (1), a handle (5) is fixedly connected to the top of the fuel tank (1), a moving wheel (6) is fixedly connected to the bottom of the fuel tank (1), a motor (9) is fixedly connected to the left side of the top of the fuel tank (1), a feeding port (13) is fixedly communicated with the right side of the top of the fuel tank (1), a liquid level gauge (16) is fixedly connected to the back side of the surface of the fuel tank (1), a first oil outlet (4) is fixedly communicated with the front side of the surface of the fuel tank (1), a second oil pipe (7) is fixedly communicated with the top of the first oil outlet (4), one end of the second oil pipe (7) is fixedly communicated with a hydraulic valve (8), the bottom of the hydraulic valve (8) is fixedly connected to the front side of the top of the fuel tank (1), a second oil outlet (15) and a third oil pipe (10) are fixedly communicated with the surface of the hydraulic valve (8), one end of the third oil pipe (10) is fixedly communicated with a cooler (14), the bottom of the cooler (14) is fixedly connected to the back side of the top of the fuel tank (1), the other end of the third oil pipe (10) is fixedly connected to a regulating valve (12), a pressure gauge (11) is fixedly connected to the top of the third oil pipe (10), and a filtering mechanism (2) is provided on the top of the fuel tank (1); The filtering mechanism (2) includes a first oil pipe (201), one end of the first oil pipe (201) is fixedly communicated with the top of the cooler (14), the other end of the first oil pipe (201) is fixedly communicated with a filtering box (202), a feeding pipe (203) is fixedly communicated with the bottom of the filtering box (202), the bottom of the feeding pipe (203) is fixedly communicated with the top of the fuel tank (1), a connecting groove (206) is formed in the inner wall of the filtering box (202), the number of the connecting grooves (206) is three, a bracket (204) is movably connected inside the connecting groove (206), a first filter screen (208), a second filter screen (209) and a third filter screen (210) are respectively fixedly connected inside the bracket (204), and a clamping mechanism (3) is provided on the surface of the filtering box (202).

2. The special pump station for a portable hydraulic wrench according to claim 1, wherein: A connecting plate (205) is fixedly connected to the surface of the bracket (204), and a handrail (211) is fixedly connected to the surface of the connecting plate (205).

3. The special pump station for portable hydraulic wrench according to claim 2, wherein: The screen hole size of the first filter screen (208) is 50 - 100 microns, the screen hole size of the third filter screen (210) is 25 - 50 microns, and the second filter screen (209) is a magnetic filter screen.

4. A special pump station for a portable hydraulic wrench according to claim 1, characterized in that: A sealing ring (207) is fixedly connected to the surface of the bracket (204), and the surface of the sealing ring (207) is movably connected to the inside of the connecting groove (206).

5. A special pumping station for a portable hydraulic wrench according to claim 1, characterized in that: A first hook (17) is fixedly connected to the left side of the top of the fuel tank (1), a fourth oil pipe (19) is movably connected inside the first hook (17), a second hook (18) is fixedly connected to the left side of the fuel tank (1), and a hydraulic wrench body (20) is movably connected inside the second hook (18).

6. The special pump station for a portable hydraulic wrench according to claim 1, characterized in that: The clamping mechanism (3) includes a fixing groove (301) and a threaded ring (302). The fixing groove (301) is formed on the surface of the filter box (202), and the surface of the threaded ring (302) is fixedly connected to the surface of the connecting plate (205). The inner wall of the threaded ring (302) is threadedly connected to a threaded rod (303), and the rear end of the threaded rod (303) is rotatably connected to a connecting block (304) through a bearing.

7. A special pump station for a portable hydraulic wrench according to claim 6, characterized in that: The connecting block (304) is movably connected to the inside of the fixing groove (301). A connecting rod (306) is fixedly connected to the inside of the connecting block (304), and a clamping block (309) is movably connected to the surface of the connecting rod (306).

8. A special pump station for a portable hydraulic wrench according to claim 7, characterized in that: The surface of the clamping block (309) is movably connected to the inside of the fixing groove (301). A spring (305) is fixedly connected to the inside of the clamping block (309). A moving groove (308) is formed in the inside of the clamping block (309), and a fixing rod (307) is movably connected to the inside of the moving groove (308). The top and bottom of the fixing rod (307) are fixedly connected to the inner wall of the fixing groove (301).

Images