Handheld high pressure oil line fast oil supply grease gun

Abstract

The present invention discloses a handheld high-pressure oil circuit fast oil supply grease gun, which relates to the technical field of grease guns, including a grease gun body, a pump seat assembly is arranged in the grease gun body, the pump seat assembly is connected to a driving assembly, an oil barrel assembly is arranged in the grease gun body, the output end of the pump seat assembly is fixedly connected to a diverter seat, one end of the diverter seat is fixedly connected to a main oil pipe, a fixed block is fixedly connected to a side of the main oil pipe close to the diverter seat, one side of the fixed block is fixedly connected to a high-pressure assembly, one side of the main oil pipe is fixedly connected to a gas collecting assembly, and one end of the main oil pipe is fixedly connected to an oil delivery assembly. The present invention secondary pressurizes the grease in the main oil pipe through the high-pressure assembly, so that the main oil pipe always maintains a high-pressure state, the diverter seat diverts the high-pressure grease, and the gas in the main oil pipe is collected and discharged through the gas collecting assembly, so as to prevent the bubbles in the main oil pipe from entering the interior of the filled equipment during injection.

Description

Technical Field

[0001] The invention relates to the technical field of grease guns, in particular to a handheld high-pressure oil circuit fast oil supply grease gun. Background Art

[0002] The emergence of traditional manual grease guns solved the problem of adding grease to mechanical equipment. However, with the increase in mechanical equipment and the increase in the amount of grease required inside the mechanical equipment, the manual grease gun can only be used to add grease to equipment in the low-pressure oil circuit. In addition, due to the different physical conditions of each person, the pressure during each filling is not the same. Then the electric grease gun appeared, which can continuously add grease to the equipment that needs filling.

[0003] The Chinese patent application with application number 202310154359.3 discloses a lithium battery grease gun, which relates to the technical field of lithium battery grease guns. The main purpose is to provide a device that can accurately measure the amount of grease added to address the problem that traditional lithium battery grease guns cannot accurately measure the amount of grease added. The lithium battery grease gun includes a storage barrel, a metering component and a driving component, wherein grease is stored in the storage barrel; the metering component is located outside the outlet of the storage barrel, and the grease in the storage barrel can flow to the oil outlet through the metering component; the driving component is connected to the storage barrel, and when the driving component is started, the grease in the storage barrel can be pressed into the metering component. Under the drive of the driving component, the grease in the storage barrel flows out of the oil outlet after passing through the outlet and the metering component. In this process, the metering component can measure the grease flowing through, thereby realizing the accurate measurement of the amount of oil discharged by the lithium battery grease gun, but when there are multiple devices for grease filling, the amount required to be filled in each part is different, and the original oil pressure inside is also different, and it is impossible to accurately judge whether the grease in the device is full.

[0004] A Chinese patent with application number 202110647657.7 discloses a grease gun for automobile maintenance that can be filled at multiple angles, comprising: a gun body, an upper sealing cover is threadedly connected to the upper end of the gun body, and an oil outlet mechanism is provided at the upper end of the upper sealing cover; an observation window, the observation window is arranged at the front end of the outer surface of the gun body, and a dial for observation is provided on the right side of the observation window made of transparent material; a lower sealing cover, the lower sealing cover is installed at the lower end of the gun body by a threaded connection, and a control mechanism is installed inside the gun body, and the oil outlet mechanism includes: a gun head, a grip and an oil outlet valve. The grease gun for automobile maintenance that can be filled at multiple angles can have its oiling head replaced according to specific usage requirements, and after the refueling work is completed, the gas in the grease can be discharged, and the sealing effect inside the grease gun is good, which will not cause the grease to overflow, and at the same time, the angle of the oiling head can be rotated and adjusted to facilitate refueling at multiple angles. However, bubbles are generated when the grease gun is filling the equipment, and the gas in the grease gun will affect the use effect. After the refueling work is completed, the gas in the grease is discharged, and the air cannot be discharged in real time while the grease gun is working.

[0005] When the grease gun is in use, the capacity of the equipment being filled is different, and the grease added is also different. High-pressure grease is required to fill the equipment to ensure the stability of the maintenance cycle of the equipment being filled. When filling the equipment, there are bubbles in the grease in the grease gun, and the grease gun cannot determine when it is just full when filling the grease. Summary of the invention

[0006] The purpose of the present invention is to provide a handheld high-pressure oil circuit quick oil supply grease gun to solve the technical problems proposed in the above background technology that the grease pressure of the grease gun is insufficient when in use, there are bubbles in the grease in the grease gun, and it is impossible to judge when the grease is just full.

[0007] To achieve the above object, the present invention provides the following technical solution: a handheld high-pressure oil circuit quick oil supply grease gun, comprising a grease gun body, a pump seat assembly is arranged in the grease gun body, the pump seat assembly is connected to a drive assembly, and an oil barrel assembly is arranged in the grease gun body;

[0008] The output end of the pump seat assembly is fixedly connected with a diverter seat, one end of the diverter seat is fixedly connected with a main oil pipe, a side of the main oil pipe close to the diverter seat is fixedly connected with a fixed block, a pump chamber is defined in the fixed block, an impeller is provided inside the pump chamber, an avoidance groove is defined in the fixed block, the avoidance groove is located at the bottom of the pump chamber, a cam is provided in the avoidance groove, a transmission shaft is fixedly connected between the impeller and the cam, the transmission shaft is rotatably connected to the pump chamber, a high-pressure assembly is fixedly connected to one side of the fixed block, an air collecting assembly is fixedly connected to one side of the main oil pipe, and an oil delivery assembly is fixedly connected to one end of the main oil pipe.

[0009] Preferably, the oil barrel assembly is connected to the inner cavity of the pump seat assembly, the pump seat assembly includes a first oil outlet column and a second oil outlet column, the diverter seat is provided with a first oil outlet hole and a first oil inlet, the first oil outlet column is sealably inserted in the first oil outlet hole, the first oil outlet hole is connected to the main oil pipe, and the second oil outlet column is sealably inserted in the first oil inlet.

[0010] Preferably, a second oil inlet is provided on a side of the fixed block close to the pump seat assembly, the second oil inlet is connected to the first oil inlet, a second oil outlet is provided on a side of the fixed block close to the main oil pipe, the second oil inlet and the second oil outlet are connected to each other through the pump chamber, and the second oil outlet is connected to the main oil pipe.

[0011] Preferably, the high-pressure component includes a high-pressure oil barrel, which is fixedly connected to the fixed block, and a first piston is sealingly and slidingly connected inside the high-pressure oil barrel, the first piston is in contact with a cam, and a boss is fixedly connected to the inner bottom surface of the high-pressure oil barrel, and a first spring is sleeved on the outer wall of the boss, and the first spring is respectively in conflict with the first piston and the inner bottom surface of the high-pressure oil barrel, and an oil inlet pipe is provided on the high-pressure oil barrel at the first piston, and an oil outlet pipe is provided at the bottom of the high-pressure oil barrel, and the oil inlet pipe and the oil outlet pipe are both connected to the main oil pipe.

[0012] Preferably, the gas collecting assembly includes a gas collecting cylinder, which is connected to the main oil pipe, the inner wall of the gas collecting cylinder is fixedly connected to a guide sleeve, the interior of the guide sleeve is fixedly connected to a fixing rod, a blind hole is provided in the fixing rod, and a small hole is opened at the bottom of the blind hole.

[0013] Preferably, the bottom of the gas collecting cylinder is sealingly and slidingly connected to a second piston, the top of the second piston is fixedly connected to a sliding rod, the other end of the sliding rod seals and slides in a guide sleeve, the second piston and the sliding rod are both provided with through holes, the through holes are connected to the main oil pipe, the fixed rod seals and slides in the through holes, a second spring is arranged between the second piston and the gas collecting cylinder, the two ends of the second spring are respectively fixedly connected to the second piston and the gas collecting cylinder, the second spring is sleeved on the outer wall of the guide sleeve, and the blind hole leads to the outside of the guide sleeve.

[0014] Preferably, the oil delivery assembly includes an oil delivery pipe, the oil delivery pipe is connected to the main oil pipe, one side of the oil delivery pipe is connected to a nozzle, the nozzle is provided with a discharge hole, a baffle is provided inside the nozzle, one side of the baffle is fixedly connected to a connecting rod, a fixing ring is provided on the inner wall of the nozzle away from the baffle, the outer wall of the connecting rod is sleeved with a third spring, and both ends of the third spring are respectively fixedly connected to the baffle and the fixing ring.

[0015] Preferably, the connecting rod passes through the fixing ring and is hinged with a movable rod at one end, the outer wall of the nozzle is connected to a sliding cavity, the inner wall of the sliding cavity is provided with a rotating rod, and the upper part of the movable rod rotates on the outer wall of the rotating rod.

[0016] Preferably, a first avoidance hole is opened at one end of the movable rod, a fourth spring is arranged in the first avoidance hole, a strong magnetic block is arranged between the fourth spring and the sliding cavity, a second avoidance hole is arranged in the strong magnetic block, and the fourth spring is fixedly connected to the inner bottom of the first avoidance hole and the second avoidance hole respectively.

[0017] Preferably, an iron block corresponding to the strong magnetic block is arranged outside the sliding cavity, and the iron block is used to control the power off of the grease gun body.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention delivers the grease in the second oil outlet column to the first oil inlet, and the grease in the first oil inlet is directly delivered to the second oil inlet. The grease enters the pump chamber and rotates the impeller while driving the transmission shaft and the cam to rotate. The first piston slides in the high-pressure oil barrel while the cam rotates. When the first piston approaches the central axis of the transmission shaft, the grease in the main oil pipe is sucked into the high-pressure oil barrel through the oil inlet pipe. When the first piston is away from the central axis of the transmission shaft, the grease is squeezed by the first piston in the high-pressure oil barrel to form high pressure. The high-pressure grease is discharged into the main oil pipe through the oil outlet pipe, so that the main oil pipe is always kept in a high-pressure state, thereby ensuring the stability of the maintenance cycle of the refueled equipment and improving the accuracy of refueling.

[0020] 2. The present invention allows the gas in the main oil pipe to enter the interior of the gas collecting cylinder and squeezes the second piston, so that the second piston squeezes the second spring. When the gas in the gas collecting cylinder cannot make the fixed rod and the small hole separate from the through hole, the gas collecting cylinder is always in a high-pressure state and the pressure in the main oil pipe is compensated. When the gas in the gas collecting cylinder increases, the fixed rod and the small hole are separated from the through hole, and the gas in the gas collecting cylinder is discharged to the outside of the gas collecting cylinder through the small hole and the blind hole, and the bubbles in the main oil pipe are prevented from entering the interior of the equipment to be filled during injection, thereby avoiding the phenomenon of equipment wear due to bubbles and improving the efficiency of filling.

[0021] 3. The present invention allows the high-pressure grease in the main oil pipe to enter the nozzle through the oil delivery pipe. The end of the baffle close to the discharge hole is in the shape of a truncated cone. At the same time, the high-pressure grease is squeezed toward the truncated cone of the baffle, so that the third spring is compressed, and the baffle moves backward together with the connecting rod. The connecting rod drives the movable rod to rotate on the outer wall of the rotating rod. Under the action of the fourth spring, the strong magnetic block moves along the inner wall of the sliding cavity. At the same time, the iron block corresponding to the strong magnetic block moves along the outer wall of the sliding cavity. With the continuous filling of grease, the reaction force generated by the grease in the filled equipment becomes stronger and stronger. When the pressure of the grease in the equipment being filled is gradually equal to that in the nozzle, the baffle moves closer to the discharge hole under the action of the third spring, and the movable rod gradually becomes vertical. Finally, the movable rod and the strong magnetic block are reset. At the same time, the iron block contacts the electric switch of the grease gun body to cut off the power. At the same time, the high-pressure grease in the main oil pipe maintains the pressure of the equipment being filled. Finally, the baffle seals the discharge hole to prevent the grease in the nozzle from contacting with air and dust, and to prevent the grease at the discharge hole from drying up, ensuring that the grease in the main oil pipe is in a sealed state when the grease is placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the handheld high-pressure oil circuit quick oil supply grease gun of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the pump base assembly of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the shunt seat of the present invention;

[0025] Figure 4 This is a cross-sectional view of the fixed block structure of the present invention;

[0026] Figure 5 This is a cross-sectional view of the main oil pipe structure of the present invention;

[0027] Figure 6 for Figure 5 A local enlarged schematic diagram in the A direction;

[0028] Figure 7 for Figure 5 A local enlarged schematic diagram of the B direction in FIG.

[0029] Figure 8 This is a schematic diagram of the structure of the oil delivery assembly of the present invention;

[0030] Fig. 9 It is a cross-sectional view of the nozzle structure of the present invention;

[0031] Fig.10 for Fig. 9 A local enlarged schematic diagram in the C direction.

[0032] The accompanying drawings are marked as follows: 1. Grease gun body; 2. Pump seat assembly; 21. Diverter seat; 212. First oil outlet hole; 213. First oil inlet; 22. First oil outlet column; 23. Second oil outlet column; 3. Drive assembly; 4. Oil barrel assembly; 5. Main oil pipe; 6. Fixed block; 61. Pump chamber; 611. Impeller; 62. Avoidance groove; 621. Cam; 63. Drive shaft; 64. Second oil inlet; 65. Second oil outlet; 7. High-pressure assembly; 71. High-pressure oil barrel; 711. Boss; 712. First spring; 713. Oil inlet pipe; 714. Oil outlet pipe; 72. First Piston; 8. Gas collecting assembly; 81. Gas collecting cylinder; 811. Guide sleeve; 812. Fixed rod; 813. Blind hole; 814. Small hole; 82. Second piston; 821. Sliding rod; 822. Through hole; 83. Second spring; 9. Oil delivery assembly; 91. Oil delivery pipe; 92. Nozzle; 921. Discharge hole; 93. Baffle; 931. Connecting rod; 94. Fixed ring; 95. Third spring; 96. Movable rod; 961. First avoidance hole; 97. Sliding cavity; 971. Rotating rod; 98. Fourth spring; 99. Strong magnetic block; 991. Second avoidance hole; 992. Iron block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] like Figure 1 , Figure 2As shown, the first embodiment of the present invention provides a handheld high-pressure oil circuit quick oil supply grease gun, including a grease gun body 1, a pump seat assembly 2 is arranged in the grease gun body 1, the pump seat assembly 2 is connected to a driving assembly 3, an oil barrel assembly 4 is arranged in the grease gun body 1, an output end of the pump seat assembly 2 is fixedly connected to a diverter seat 21, one end of the diverter seat 21 is fixedly connected to a main oil pipe 5, a side of the main oil pipe 5 close to the diverter seat 21 is fixedly connected to a fixed block 6, one side of the fixed block 6 is fixedly connected to a high-pressure assembly 7, one side of the main oil pipe 5 is fixedly connected to an air collecting assembly 8, and the main oil pipe 5 is fixedly connected to a gas collecting assembly 8. One end is fixedly connected with an oil delivery component 9, and the oil barrel component 4 is connected to the inner cavity of the pump seat component 2. After the grease gun body 1 is started, the pump seat component 2 extracts and squeezes the grease in the oil barrel component 4 under the action of the driving component 3, and the squeezed grease flows into the diverter seat 21 through the fixed block 6. The diverter seat 21 delivers most of the grease to the main oil pipe 5, and a small part to the fixed block 6. The grease in the fixed block 6 flows into the main oil pipe 5 again, and then passes through the oil delivery component 9 connected to the oil filling hole of the equipment, and finally the grease is injected into the interior of the equipment through the oil delivery component 9.

[0036] like Figure 2 , Figure 3 As shown, the pump seat assembly 2 includes a first oil outlet column 22 and a second oil outlet column 23, the diverter seat 21 is provided with a first oil outlet hole 212 and a first oil inlet 213, the first oil outlet column 22 is sealed and inserted in the first oil outlet hole 212, the first oil outlet hole 212 is communicated with the main oil pipe 5, the second oil outlet column 23 is sealed and inserted in the first oil inlet 213, a pump chamber 61 is provided in the fixed block 6, an impeller 611 is provided inside the pump chamber 61, an avoidance groove 62 is provided in the fixed block 6, the avoidance groove 62 is located at the bottom of the pump chamber 61, a cam 621 is provided in the avoidance groove 62, a transmission shaft 63 is fixedly connected between the impeller 611 and the cam 621, and the transmission shaft 63 is rotatably connected to the pump chamber 61.

[0037] like Figure 4 - Figure 6As shown, the high-pressure assembly 7 includes a high-pressure oil barrel 71, which is fixedly connected to the fixed block 6, and a first piston 72 is sealed and slidably connected inside the high-pressure oil barrel 71, and the first piston 72 is arranged in a stepped shaft shape. A second oil inlet 64 is provided on a side of the fixed block 6 close to the pump seat assembly 2, and the second oil inlet 64 is connected to the first oil inlet 213. A second oil outlet 65 is provided on a side of the fixed block 6 close to the main oil pipe 5, and the second oil inlet 64 and the second oil outlet 65 are connected to each other through the pump chamber 61, and the second oil outlet 65 is connected to the main oil pipe 5. The first piston 72 contacts the cam 621, and a boss 711 is fixedly connected to the inner bottom surface of the high-pressure oil barrel 71, and a first spring 71 is sleeved on the outer wall of the boss 711. 2. The first spring 712 respectively contacts the first piston 72 and the inner bottom surface of the high-pressure oil barrel 71. The boss 711 is used to limit the first spring 712 to prevent the first spring 712 from moving radially under the action of gravity. The high-pressure oil barrel 71 is provided with an oil inlet pipe 713 at the first piston 72. The purpose of this arrangement is to ensure that when the first piston 72 is closest to the center of the transmission shaft 63, the oil inlet pipe 713 will not be blocked by the first piston 72. The bottom end of the high-pressure oil barrel 71 is provided with an oil outlet pipe 714. The oil inlet pipe 713 and the oil outlet pipe 714 are both connected to the main oil pipe 5. The inner diameter of the oil inlet pipe 713 is larger than the inner diameter of the oil outlet pipe 714. The oil delivery assembly 9 includes an oil delivery pipe 91, and the oil delivery pipe 91 is connected to the main oil pipe 5.

[0038] Specifically, when the grease gun body 1 is started, the pump seat assembly 2 extracts and squeezes the grease in the oil barrel assembly 4 under the action of the driving assembly 3, and the squeezed grease is transported to the first oil outlet hole 212 through the first oil outlet column 22, and the grease in the second oil outlet column 23 is transported to the first oil inlet 213, and the diameter of the first oil outlet hole 212 is larger than the diameter of the first oil inlet 213, and the inner diameter of the first oil outlet column 22 is larger than the inner diameter of the second oil outlet column 23, wherein the grease in the first oil outlet hole 212 is directly transported to the main oil pipe 5, and the grease in the first oil inlet 213 is directly transported to the second oil inlet 64 and enters the pump chamber 61, and the grease is driven out. The impeller 611 rotates, and the grease in the pump chamber 61 flows into the main oil pipe 5 through the second oil outlet 65. The impeller 611 rotates while driving the transmission shaft 63 to rotate, and the synchronous cam 621 rotates. While the cam 621 rotates, the first piston 72 slides in the high-pressure oil barrel 71 and squeezes the first spring 712 to make reciprocating motion. The grease in the main oil pipe 5 is sucked into the high-pressure oil barrel 71 through the oil inlet pipe 713. The grease is squeezed into the high-pressure oil barrel 71 by the first piston 72 to form high pressure. The high-pressure grease is discharged into the main oil pipe 5 through the oil outlet pipe 714, so that the main oil pipe 5 always maintains a high-pressure state, thereby ensuring the stability of the maintenance cycle of the refueled equipment and improving the accuracy of refueling.

[0039] In this embodiment, the grease in the second oil outlet column 23 is transported to the first oil inlet 213, and the grease in the first oil inlet 213 is directly transported to the second oil inlet 64. The grease enters the pump chamber 61 and rotates the impeller 611 while driving the transmission shaft 63 and the cam 621 to rotate. When the cam 621 rotates, the first piston 72 slides in the high-pressure oil barrel 71. When the first piston 72 approaches the central axis of the transmission shaft 63, the grease in the main oil pipe 5 is sucked into the high-pressure oil barrel 71 through the oil inlet pipe 713. When the first piston 72 is away from the central axis of the transmission shaft 63, the grease is squeezed by the first piston 72 in the high-pressure oil barrel 71 to form high pressure. The high-pressure grease is discharged into the main oil pipe 5 through the oil outlet pipe 714, so that the main oil pipe 5 always maintains a high-pressure state, thereby ensuring the stability of the maintenance cycle of the refueled equipment and improving the accuracy of refueling.

[0040] Embodiment 2

[0041] The inventor found in actual use that the grease gun body 1 will have corresponding bubbles when spraying grease. If these bubbles are not processed, they will enter the interior of the equipment. When the bubbles inside the equipment increase, the maintenance of the equipment will be accelerated. In severe cases, the equipment will be worn due to the bubbles. After the bubbles are discharged, the pressure in the main oil pipe 5 is also reduced, which slows down the efficiency of filling. In order to solve the above problems, based on the above embodiments.

[0042] like Figure 3 , Figure 5 , Figure 7 The gas collecting assembly 8 includes a gas collecting cylinder 81, which is connected to the main oil pipe 5. The inner wall of the gas collecting cylinder 81 is fixedly connected with a guide sleeve 811, and the interior of the guide sleeve 811 is fixedly connected with a fixing rod 812. A blind hole 813 is provided in the fixing rod 812, and a small hole 814 is provided at the bottom of the blind hole 813. The bottom of the gas collecting cylinder 81 is sealed and slidably connected with a second piston 82, and the top of the second piston 82 is fixedly connected with a sliding rod 821. The other end of the sliding rod 821 is sealed and slidable in the guide sleeve 811. The second piston 82 and the sliding rod 821 are both provided with a through hole 822, and the through hole 822 is connected to the main oil pipe 5. The fixing rod 812 is sealed and slidable in the through hole 822. A second spring 83 is arranged between the second piston 82 and the air collecting cylinder 81, and the two ends of the second spring 83 are fixedly connected to the second piston 82 and the air collecting cylinder 81 respectively. The second spring 83 is sleeved on the outer wall of the guide sleeve 811, and the blind hole 813 leads to the outside of the guide sleeve 811, wherein the length of the fixing rod 812 is greater than the length of the fixing rod 812 plus the second piston 82 after the second spring 83 is compressed, so that when the second spring 83 is compressed to the limit position, the small hole 814 completely passes through the second piston 82, so that the small hole 814 is connected to the main oil pipe 5, and under the normal state of the second piston 82 and the second spring 83, the distance from the bottom surface of the second piston 82 to the central axis of the main oil pipe 5 is always greater than the radius of the inner diameter of the main oil pipe 5.

[0043] In actual use, bubbles in the main oil pipe 5 enter the gas collecting cylinder 81. As the number of bubbles increases, the second piston 82 moves together with the sliding rod 821 and squeezes the second spring 83. At the same time, the sliding rod 821 slides in the guide sleeve 811. When there are fewer bubbles in the main oil pipe 5, the bubbles in the gas collecting cylinder 81 are trapped at the bottom of the second piston 82. Since the fixed rod 812 slides in the through hole 822 in a sealed manner, the second piston 82 is close to the fixed rod 812, so that the gas collecting cylinder 81 is in a sealed high-pressure state, and provides a preparatory pressure when the grease is added, which is conducive to the main oil. The pressure in the pipe 5 is compensated. When the bubbles in the main oil pipe 5 increase, the second piston 82 contacts the guide sleeve 811 and squeezes the second spring 83, so that the second spring 83 is compressed to the limit position. At this time, the second piston 82 passes through the fixed rod 812, and the gas at the bottom of the second piston 82 enters the blind hole 813 through the small hole 814 and leads to the outside of the gas collecting cylinder 81. When the internal gas is discharged, the second spring 83 rebounds and squeezes the second piston 82, so that the small hole 814 together with the fixed rod 812 are in the through hole 822. At this time, the inside of the gas collecting cylinder 81 is in a sealed state.

[0044] In this embodiment, the gas in the main oil pipe 5 enters into the gas collecting cylinder 81 and squeezes the second piston 82, so that the second piston 82 squeezes the second spring 83. When the gas in the gas collecting cylinder 81 cannot make the fixing rod 812 and the small hole 814 separate from the through hole 822, the gas collecting cylinder 81 is always in a high-pressure state and compensates for the pressure in the main oil pipe 5. When the gas in the gas collecting cylinder 81 increases, the fixing rod 812 and the small hole 814 separate from the through hole 822, and the gas in the gas collecting cylinder 81 is discharged from the outside of the gas collecting cylinder 81 through the small hole 814 and the blind hole 813, and the bubbles in the main oil pipe 5 are prevented from entering the interior of the equipment being filled during injection, thereby avoiding the wear of the equipment due to bubbles and improving the efficiency of filling.

[0045] Embodiment 3

[0046] The inventor found in actual use that when the grease is sprayed from the grease gun body 1 and placed, the grease near the nozzle 92 becomes dry due to the contact between the nozzle 92 and the air and dust. The dried grease can easily clog the nozzle 92 during the next use. A portion of the dried grease enters the interior of the device through the discharge hole 921 under high pressure. The deteriorated and dried grease affects the grease inside the device and affects the service life of the device. The grease at the discharge hole 921 needs to be cleaned before and after each use. To solve the above problems, based on the above embodiments.

[0047] like Figure 8-10One side of the oil delivery pipe 91 is connected to a nozzle 92, and the nozzle 92 is provided with a discharge hole 921. A baffle 93 is arranged inside the nozzle 92. The diameter of the baffle 93 is smaller than the inner diameter of the nozzle 92. The baffle 93 is close to the discharge hole 921 under normal conditions. The end of the baffle 93 close to the discharge hole 921 is arranged in a frustum shape. A connecting rod 931 is fixedly connected to one side of the baffle 93. A fixing ring 94 is arranged on the inner wall of the nozzle 92 away from the baffle 93. A third spring 95 is sleeved on the outer wall of the connecting rod 931. The two ends of the third spring 95 are fixedly connected to the baffle 93 and the fixing ring 94 respectively. One end of the connecting rod 931 passing through the fixing ring 94 is hinged with a movable rod 96. The outer wall of the nozzle 92 is connected to a sliding cavity 97, and a rotating rod 971 is provided on the inner wall of the sliding cavity 97. The upper part of the movable rod 96 rotates on the outer wall of the rotating rod 971. A first avoidance hole 961 is opened at one end of the movable rod 96, and a fourth spring 98 is provided in the first avoidance hole 961. A strong magnetic block 99 is provided between the fourth spring 98 and the sliding cavity 97, and a second avoidance hole 991 is provided in the strong magnetic block 99. The fourth spring 98 is fixedly connected to the inner bottom of the first avoidance hole 961 and the second avoidance hole 991 respectively. An iron block 992 corresponding to the strong magnetic block 99 is provided on the outside of the sliding cavity 97, and the iron block 992 is used to control the power off of the grease gun body 1.

[0048] When in use, the nozzle 92 is connected to the equipment to be filled. After the grease gun body 1 is started, the high-pressure grease in the main oil pipe 5 enters the nozzle 92 through the oil delivery pipe 91, and the high-pressure grease squeezes the baffle 93. The end of the baffle 93 close to the discharge hole 921 is in the shape of a truncated cone. At the same time, the high-pressure grease is squeezed toward the truncated cone of the baffle 93, so that the third spring 95 is compressed. Since the baffle 93 contacts the fixing ring 94, one end of the third spring 95 is provided with a avoidance, so that the two ends of the third spring 95 can be respectively embedded in the baffle 93 and the fixing ring 94. When grease is filled into the equipment, the baffle 93 squeezes the third spring 95, and at the same time, the baffle 93 moves backward together with the connecting rod 931, and the connecting rod 931 drives the movable rod 96 to rotate. The outer wall of the rod 971 rotates, and at this time, the strong magnetic block 99 moves along the inner wall of the sliding cavity 97 under the action of the fourth spring 98. At the same time, the iron block 992 corresponding to the strong magnetic block 99 moves along the outer wall of the sliding cavity 97. With the continuous filling of grease, the reaction force generated by the grease in the equipment being filled becomes stronger and stronger. When the pressure of the grease in the equipment being filled and the grease in the nozzle 92 are gradually equalized, the baffle 93 approaches the discharge hole 921 under the action of the third spring 95, and the movable rod 96 is gradually in a vertical state. Finally, the movable rod 96 is reset together with the strong magnetic block 99, and the iron block 992 contacts the electric switch of the grease gun body 1 to cut off the power. At the same time, the high-pressure grease in the main oil pipe 5 maintains the pressure of the equipment being filled.

[0049] In this embodiment, the high-pressure grease in the main oil pipe 5 enters the nozzle 92 through the oil delivery pipe 91. The end of the baffle 93 close to the discharge hole 921 is in the shape of a truncated cone. At the same time, the high-pressure grease is squeezed toward the truncated cone of the baffle 93, so that the third spring 95 is compressed, and the baffle 93 moves backward together with the connecting rod 931. The connecting rod 931 drives the movable rod 96 to rotate on the outer wall of the rotating rod 971. The strong magnetic block 99 moves along the inner wall of the sliding cavity 97 under the action of the fourth spring 98. At the same time, the iron block 992 corresponding to the strong magnetic block 99 moves along the outer wall of the sliding cavity 97. As the grease is continuously added, the reaction force generated by the grease in the added equipment also It becomes stronger and stronger. When the pressure of the grease in the equipment being filled is gradually equal to that in the nozzle 92, the baffle 93 approaches the discharge hole 921 under the action of the third spring 95, and the movable rod 96 is gradually in a vertical state. Finally, the movable rod 96 and the strong magnetic block 99 are reset. At the same time, the iron block 992 contacts the electric switch of the grease gun body 1 to cut off the power. At the same time, the high-pressure grease in the main oil pipe 5 maintains the pressure of the equipment being filled. Finally, the baffle 93 seals the discharge hole 921 to prevent the grease in the nozzle 92 from contacting with air and dust, and to prevent the grease at the discharge hole 921 from drying up, ensuring that the grease in the main oil pipe 5 is in a sealed state when the grease is placed.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A handheld high-pressure oil circuit quick-supply grease gun, comprising a grease gun body (1), characterized in that: A pump seat assembly (2) is arranged in the grease gun body (1), the pump seat assembly (2) is connected to a drive assembly (3), and an oil barrel assembly (4) is arranged in the grease gun body (1); The output end of the pump seat assembly (2) is fixedly connected to a flow divider seat (21), one end of the flow divider seat (21) is fixedly connected to a main oil pipe (5), a side of the main oil pipe (5) close to the flow divider seat (21) is fixedly connected to a fixed block (6), a pump chamber (61) is defined in the fixed block (6), an impeller (611) is provided inside the pump chamber (61), an avoidance groove (62) is defined in the fixed block (6), the avoidance groove (62) is located at the bottom of the pump chamber (61), a cam (621) is provided in the avoidance groove (62), a transmission shaft (63) is fixedly connected between the impeller (611) and the cam (621), the transmission shaft (63) is rotatably connected to the pump chamber (61), a high-pressure assembly (7) is fixedly connected to one side of the fixed block (6), a gas collecting assembly (8) is fixedly connected to one side of the main oil pipe (5), and an oil delivery assembly (9) is fixedly connected to one end of the main oil pipe (5); The oil barrel assembly (4) is in communication with the inner cavity of the pump seat assembly (2); the pump seat assembly (2) comprises a first oil outlet column (22) and a second oil outlet column (23); the diverter seat (21) is provided with a first oil outlet hole (212) and a first oil inlet (213); the first oil outlet column (22) is sealed and inserted in the first oil outlet hole (212); the first oil outlet hole (212) is in communication with the main oil pipe (5); the second oil outlet column (23) is sealed and inserted in the first oil inlet (213); A second oil inlet (64) is provided on a side of the fixed block (6) close to the pump seat assembly (2), the second oil inlet (64) being in communication with the first oil inlet (213); a second oil outlet (65) is provided on a side of the fixed block (6) close to the main oil pipe (5), the second oil inlet (64) and the second oil outlet (65) being in communication with each other through the pump chamber (61), and the second oil outlet (65) being in communication with the main oil pipe (5); The high-pressure assembly (7) comprises a high-pressure oil barrel (71), the high-pressure oil barrel (71) being fixedly connected to the fixed block (6), a first piston (72) being sealingly and slidably connected inside the high-pressure oil barrel (71), the first piston (72) being in contact with a cam (621), a boss (711) being fixedly connected to the inner bottom surface of the high-pressure oil barrel (71), a first spring (712) being sleeved on the outer wall of the boss (711), the first spring (712) respectively abutting against the first piston (72) and the inner bottom surface of the high-pressure oil barrel (71), an oil inlet pipe (713) being arranged at the first piston (72) of the high-pressure oil barrel (71), an oil outlet pipe (714) being arranged at the bottom end of the high-pressure oil barrel (71), the oil inlet pipe (713) and the oil outlet pipe (714) both being connected to the main oil pipe (5).

2. The handheld high-pressure oil line quick oil supply grease gun according to claim 1 is characterized by: The gas collecting assembly (8) comprises a gas collecting cylinder (81), the gas collecting cylinder (81) being connected to the main oil pipe (5), the inner wall of the gas collecting cylinder (81) being fixedly connected to a guide sleeve (811), the interior of the guide sleeve (811) being fixedly connected to a fixing rod (812), a blind hole (813) being provided in the fixing rod (812), and a small hole (814) being provided at the bottom of the blind hole (813) on the fixing rod (812).

3. The handheld high-pressure oil line quick oil supply grease gun according to claim 2 is characterized by: The bottom of the gas collecting cylinder (81) is sealingly and slidably connected to a second piston (82), the top of the second piston (82) is fixedly connected to a sliding rod (821), the other end of the sliding rod (821) is sealingly and slidably mounted in a guide sleeve (811), the second piston (82) and the sliding rod (821) are both provided with a through hole (822), the through hole (822) is connected to the main oil pipe (5), the fixed rod (812) is sealingly and slidably mounted in the through hole (822), a second spring (83) is arranged between the second piston (82) and the gas collecting cylinder (81), the two ends of the second spring (83) are respectively fixedly connected to the second piston (82) and the gas collecting cylinder (81), the second spring (83) is sleeved on the outer wall of the guide sleeve (811), and the blind hole (813) leads to the outside of the guide sleeve (811).

4. The handheld high-pressure oil line quick oil supply grease gun according to claim 1 is characterized by: The oil delivery assembly (9) comprises an oil delivery pipe (91), the oil delivery pipe (91) being connected to the main oil pipe (5), one side of the oil delivery pipe (91) being connected to a nozzle (92), the nozzle (92) being provided with a discharge hole (921), a baffle (93) being provided inside the nozzle (92), one side of the baffle (93) being fixedly connected to a connecting rod (931), a fixing ring (94) being provided on the inner wall of the nozzle (92) away from the baffle (93), an outer wall of the connecting rod (931) being sleeved with a third spring (95), and two ends of the third spring (95) being fixedly connected to the baffle (93) and the fixing ring (94) respectively.

5. The handheld high-pressure oil line quick oil supply grease gun according to claim 4 is characterized in that: The connecting rod (931) passes through the fixing ring (94), and one end of the connecting rod (931) is hingedly connected to a movable rod (96). The outer wall of the nozzle (92) is connected to a sliding cavity (97). The inner wall of the sliding cavity (97) is provided with a rotating rod (971). The upper part of the movable rod (96) rotates on the outer wall of the rotating rod (971).

6. The handheld high-pressure oil line quick oil supply grease gun according to claim 5 is characterized by: A first avoidance hole (961) is formed at one end of the movable rod (96), a fourth spring (98) is arranged in the first avoidance hole (961), a strong magnetic block (99) is arranged between the fourth spring (98) and the sliding cavity (97), a second avoidance hole (991) is arranged in the strong magnetic block (99), and the fourth spring (98) is fixedly connected to the inner bottom of the first avoidance hole (961) and the second avoidance hole (991), respectively.

7. The handheld high-pressure oil line quick oil supply grease gun according to claim 6 is characterized by: An iron block (992) corresponding to the strong magnetic block (99) is arranged outside the sliding cavity (97), and the iron block (992) is used to control the power off of the grease gun body (1).

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