A combined grease gun

Abstract

The utility model relates to lubricating equipment technical field discloses a combined type lubricating grease filler, including filling mechanism and blowing mechanism, two institutions are controlled through the two -way valve, share same oil pipe, the filling mechanism includes grease storage tank, push disc and manual pressure lever for the pressurized delivery to lubricating grease, the blowing mechanism includes high pressure gas storage tank and manual aeration structure that constitutes by outer tube, air cylinder and one -way air inlet subassembly for generating and storing high pressure gas, can switch valve first when operating, high pressure gas clean lubrication point is spouted from oil pipe, and then switch valve and inject lubricating grease, the utility model solves the problem that the existing lubricating grease filler single function needs to be equipped with another cleaning tool and leads to the problem of complicated operation, realizes the integrated operation of cleaning first and then filling, significantly improves work efficiency and lubrication maintenance quality, and compact structure, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of lubrication equipment technology, and in particular to a combined grease dispenser. Background Technology

[0002] A grease dispenser, commonly known as a grease gun, is an indispensable tool in the daily maintenance of mechanical equipment. It applies pressure to precisely inject grease into moving parts that require lubrication, such as bearings, gears, and guide rails, reducing friction and preventing wear, thereby ensuring the normal operation of the equipment and extending its service life.

[0003] When performing deep maintenance or regular overhauls on mechanical equipment, ensuring optimal lubrication is not simply a matter of adding new grease. Over time, the existing grease deteriorates due to high temperatures and oxidation, mixing with metal particles from wear and external dust, forming a sludge-like contaminant. Directly injecting new grease will cause it to mix with these contaminants, significantly reducing its performance and even accelerating component wear.

[0004] Therefore, in standard maintenance procedures, operators typically need to thoroughly clean the lubrication points and their gaps to remove expired grease and impurities. Currently, the common practice is to use a separate high-pressure air gun connected to an external air compressor to blow away contaminants using high-pressure airflow, and then add grease using a grease filler.

[0005] This separate operating procedure has significant drawbacks. Operators must carry both a grease dispenser and an air gun simultaneously, frequently switching between them during operation. This not only increases labor intensity but also reduces work efficiency. Especially when working far from a fixed air source or at heights, dragging the air hose or using a portable air pump is extremely inconvenient, often leading to the simplification or omission of thorough cleaning steps, affecting the final maintenance quality. Therefore, this invention proposes a combined grease dispenser to address the shortcomings of the existing technology. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a combined grease dispenser, which aims to improve the problem that some existing grease dispensers have limited functionality and cannot effectively clean the lubrication points with air before adding grease, resulting in operators having to carry multiple tools, cumbersome procedures, and low efficiency.

[0007] This utility model provides a combined grease dispenser, including a dispensing mechanism and an air blowing mechanism combined with the dispensing mechanism; the dispensing mechanism includes a grease reservoir, a connecting cover plate, a push plate and a manual pressure rod; the air blowing mechanism includes a high-pressure air reservoir, an outer cylinder, a cylinder and a one-way air intake assembly, the one-way air intake assembly includes a limit frame and a one-way limit ball; it also includes a filling pipe and a two-way valve.

[0008] The air blowing mechanism consists of an outer cylinder, a cylinder that slides inside the outer cylinder, and a one-way air intake assembly that is fixedly connected to the air intake end of the outer cylinder, forming a complete manual inflation structure. The one-way limiting ball inside the one-way air intake assembly is movably housed in the limiting frame to achieve one-way compression of air and store it in the high-pressure air storage tank.

[0009] Furthermore, the filling mechanism and the blowing mechanism are integrated, and the output channel is controlled by a two-way valve. The valve body of the two-way valve is equipped with a first inlet, a second inlet and an outlet. The first inlet is connected to the grease discharge port of the grease tank, the second inlet is connected to the air outlet of the high-pressure gas tank through the blowing hose, and the outlet is connected to the inlet end of the filling pipe, thereby realizing the selective output of lubricating grease or high-pressure gas through a shared filling pipe.

[0010] Preferably, the combined grease dispenser also includes a pressure-adjustable safety valve, which is fixedly connected to the outer wall of the high-pressure gas storage tank and communicates with the internal gas storage space of the high-pressure gas storage tank.

[0011] Preferably, the filling mechanism further includes a pull rod that slides through the wall of the connecting cover or the grease tank, with one end extending into the grease tank for manually releasing residual gas pressure inside the tank.

[0012] Preferably, a return spring is provided between the inner bottom of the grease tank and the bottom surface of the push plate to assist the movement of the push plate.

[0013] Preferably, the filling mechanism and the blowing mechanism are fixed side by side on the same base in the horizontal direction, so that the pressing direction of the manual lever is parallel to the pulling direction of the cylinder, which facilitates operation.

[0014] Preferably, the outer cylinder wall of the blowing mechanism and the tank body of the high-pressure gas storage tank adopt an integral molding structure to improve the overall structural strength and airtightness.

[0015] Preferably, the manual lever is connected to the push plate via a pump body and linkage mechanism located outside the grease tank to achieve effective pressure drive.

[0016] Preferably, the air blowing hose connecting the high-pressure gas storage tank and the two-way valve is a high-pressure resistant rubber hose, and the outlet end of the oil filling pipe is equipped with a conical oil nozzle for easy connection with the lubrication point.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model integrates the air blowing mechanism that generates high-pressure gas with the grease delivery mechanism, and sets up a two-way valve for function switching. This solves the problem that existing grease dispensers have a single function and cannot effectively pre-clean the lubrication points. It achieves the technical effect of realizing "air blowing for cleaning and then lubrication" in a single device, thereby significantly improving work efficiency and lubrication maintenance quality.

[0019] 2. This utility model solves the problem that traditional fillers are prone to air blockage during operation due to air mixing, which leads to poor or no grease dispensing. By setting a pull rod on the grease storage tank of the filling mechanism to release the internal residual air pressure, it achieves the technical effect of quickly eliminating faults, ensuring smooth grease delivery channels, and improving the reliability and convenience of equipment operation.

[0020] 3. This utility model solves the problems of low efficiency caused by gas backflow during manual inflation and safety hazards caused by uncontrollable gas storage pressure by setting a one-way air intake component and a pressure adjustable safety valve connected to a high-pressure gas storage tank in the air blowing mechanism. It achieves the technical effect of ensuring gas storage efficiency while actively avoiding overpressure risks, making the entire cleaning operation process more efficient and safe. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a combined grease dispenser proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the high-pressure gas storage tank of a combined grease dispenser proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the grease reservoir of a combined grease dispenser proposed in this utility model.

[0025] Legend:

[0026] 1. Connecting cover plate; 2. Filling mechanism; 21. Grease tank; 22. Pull rod; 23. Manual lever; 24. Push plate; 3. Two-way valve; 4. Filling pipe; 5. Air blowing mechanism; 51. High-pressure gas storage tank; 52. Air blowing hose; 53. Outer cylinder; 54. Cylinder; 55. One-way air intake assembly; 551. Limit bracket; 552. One-way limit ball; 56. Pressure adjustable safety valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Reference Figures 1 to 4 This utility model provides a combined grease injector, which aims to solve the problem that existing grease injectors have a single function and cannot integrate lubrication point cleaning and grease injection.

[0030] like Figure 1 As shown, it includes a filling mechanism 2, an air blowing mechanism 5, a two-way valve 3, and a filling pipe 4. The filling mechanism 2 and the air blowing mechanism 5 are fixed side by side on the same base in the horizontal direction. The filling mechanism 2 is used to store grease and pressurize and deliver it. The air blowing mechanism 5 is used to generate and store high-pressure gas. The functional outlet of the two-way valve 3 is uniformly connected to the inlet end of the filling pipe 4. The two functional inlets of the two-way valve 3 are respectively connected to the grease discharge port of the filling mechanism 2 and the air outlet of the air blowing mechanism 5 to realize the functional switching of the output channel.

[0031] Specifically, the filling mechanism 2 includes a grease tank 21 with an opening at the top. The opening is connected to the connecting cover plate 1 by threads to form a sealed structure. A push plate 24 is slidably disposed inside the grease tank 21, and a return spring is disposed between the bottom surface of the push plate 24 and the inner bottom of the grease tank 21. A manual lever 23 is connected to the push plate 24 by a pump body and a linkage mechanism disposed outside the grease tank 21. Pressing the manual lever 23 can drive the push plate 24 to move upward to squeeze the grease. The filling mechanism 2 also includes a pull rod 22, which slides through the connecting cover plate 1 and extends into the internal space of the grease tank 21 for manually releasing the residual air pressure accumulated inside the tank.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The air blowing mechanism 5 includes a high-pressure air storage tank 51. An outer cylinder 53 is fixedly connected to the tank body of the high-pressure air storage tank 51. A cylinder 54 is slidably fitted inside the outer cylinder 53. The cylinder 54 can be manually pulled to reciprocate inside the outer cylinder 53 to compress air. A one-way air intake component 55 is fixedly connected to the air inlet end of the outer cylinder 53. The one-way air intake component 55 is the key structure for realizing one-way compression of air into the high-pressure air storage tank 51.

[0033] The system includes a hollow limiting frame 551 and a one-way limiting ball 552 that is movably housed within the internal space of the limiting frame 551. The limiting frame 551 provides a passage for airflow, while the one-way limiting ball 552 opens and closes in one direction under the constraint of the limiting frame 551. When the cylinder 54 is pulled outward, the external air pressure pushes the one-way limiting ball 552 away from its valve seat position, allowing air to enter the outer cylinder 53. When the cylinder 54 is pressed inward, the air pressure inside the outer cylinder 53 presses the one-way limiting ball 552 tightly against its valve seat position, sealing the air intake passage and forcing the compressed air into the high-pressure gas storage tank 51. To ensure operational safety, a pressure-adjustable safety valve 56 is also fixedly connected to the outer wall of the high-pressure gas storage tank 51. The pressure-adjustable safety valve 56 is connected to the internal gas storage space of the high-pressure gas storage tank 51 and is used to automatically release pressure when the pressure inside the tank exceeds a preset value.

[0034] Reference Figure 1 The outlet of the high-pressure gas storage tank 51 of the blowing mechanism 5 is connected to the second inlet of the two-way valve 3 via a blowing hose 52, which is a high-pressure resistant rubber hose; the outlet end of the oil filling pipe 4 is equipped with a conical oil nozzle for tight connection with the oil filling nozzle of the mechanical equipment; in order to improve the overall structural strength and airtightness of the blowing mechanism 5, the outer cylinder 53 and the tank body of the high-pressure gas storage tank 51 adopt an integral molding structure;

[0035] like Figure 4 As shown, in the filling mechanism 2, a return spring is also provided between the inner bottom of the grease tank 21 and the bottom surface of the push plate 24, which is used to assist in pushing the push plate 24 when the manual pressure rod 23 applies pressure; the transmission connection between the manual pressure rod 23 and the push plate 24 is realized through a pump body and a linkage mechanism provided outside the grease tank 21.

[0036] The implementation principle of this application embodiment is as follows: When performing cleaning operations, firstly, the preset pressure value of the pressure adjustable safety valve 56 is set. Then, the operator repeatedly pulls and pulls the cylinder 54 of the air blowing mechanism 5. The cylinder 54 slides and compresses air in the outer cylinder 53. During this process, the one-way limiting ball 552 in the one-way air intake assembly 55 forms a one-way airflow channel under the constraint of the limiting frame 551, so that the external air is efficiently drawn in and compressed into the high-pressure air storage tank 51. When the pressure in the high-pressure air storage tank 51 reaches the preset value, the two-way valve 3 is switched to the air blowing mode. At this time, the high-pressure air storage tank 51 is connected to the oil filling pipe 4 through the air blowing hose 52. High-pressure gas is sprayed out from the end of the oil filling pipe 4 to blow away the old grease and impurities remaining in the gaps of the lubrication points.

[0037] When performing the filling operation, unscrew the connecting cover plate 1 and take out the grease tank 21. Place the grease on the top of the push plate 24, then reset and tighten the connecting cover plate 1. Then switch the two-way valve 3 to the filling mode. At this time, the grease tank 21 of the filling mechanism 2 is connected to the filling pipe 4. The operator manually presses the manual lever 23 to apply pressure to the grease in the grease tank 21 through the transmission mechanism, pushing the push plate 24 upward to squeeze the grease and inject it into the lubrication point through the filling pipe 4. If air resistance occurs during the filling process, the pull rod 22 can be operated to release the residual gas in the grease tank 21.

Claims

1. A combined grease dispenser, comprising: The filling mechanism (2) is characterized in that the filling mechanism (2) includes a grease reservoir (21), a connecting cover plate (1) is threadedly connected to the top opening of the grease reservoir (21), a pusher plate (24) is slidably arranged inside the grease reservoir (21), and the filling mechanism (2) also includes a manual pressure rod (23) that is connected to the grease reservoir (21) for driving the pusher plate (24) to pressurize the grease; The blowing mechanism (5) includes a high-pressure gas storage tank (51), an outer cylinder (53) is fixedly connected to the tank body of the high-pressure gas storage tank (51), a cylinder (54) is slidably fitted inside the outer cylinder (53), and a one-way air intake assembly (55) is fixedly connected to the air inlet end of the outer cylinder (53). The one-way air intake assembly (55) includes a hollow limiting frame (551) and a one-way limiting ball (552) movably accommodated in the limiting frame (551), which is used to press outside air into the high-pressure gas storage tank (51) and prevent gas backflow when the cylinder (54) is pulled out; The combined grease dispenser also includes a filling pipe (4) and a two-way valve (3). The valve body of the two-way valve (3) is provided with a first inlet, a second inlet and an outlet. The first inlet is connected to the grease discharge port of the grease storage tank (21) through a pipeline. The second inlet is connected to the air outlet of the high-pressure gas storage tank (51) through an air blowing hose (52). The outlet is connected to the inlet end of the filling pipe (4). The two-way valve (3) is used to selectively connect the first inlet or the second inlet to the outlet.

2. The combined grease dispenser according to claim 1, characterized in that, An adjustable safety valve (56) is fixedly connected to the outer wall of the high-pressure gas storage tank (51), and the adjustable safety valve (56) is connected to the internal gas storage space of the high-pressure gas storage tank (51).

3. The combined grease dispenser according to claim 1, characterized in that, The filling mechanism (2) also includes a pull rod (22), which slides through the connecting cover plate (1), with one end extending into the fat storage tank (21) and connected to the push plate (24) for manually pulling the push plate (24) to release the residual gas pressure in the tank.

4. The combined grease dispenser according to claim 1, characterized in that, A reset spring is provided between the inner bottom of the fat storage tank (21) and the bottom surface of the push plate (24). The two ends of the reset spring are fixedly connected to the inner bottom of the fat storage tank (21) and the bottom surface of the push plate (24) respectively, and are used to assist in pushing the push plate (24) to reset when the manual pressure rod (23) applies pressure.

5. The combined grease dispenser according to claim 1, characterized in that, The filling mechanism (2) and the blowing mechanism (5) are fixed side by side on the same base in the horizontal direction. The bottom of the base is provided with an anti-slip rubber pad, and the pressing direction of the manual pressure rod (23) is parallel to the pulling direction of the cylinder (54).

6. The combined grease dispenser according to claim 1, characterized in that, The outer cylinder (53) wall and the high-pressure gas storage tank (51) are integrally formed, and the mating surfaces of the outer cylinder (53) and the cylinder (54) are coated with sealing grease to improve the overall structure strength and airtightness.

7. The combined grease dispenser according to claim 1, characterized in that, The manual lever (23) is connected to the push plate (24) via a pump body and a linkage mechanism located outside the fat storage tank (21). The linkage mechanism includes an active rod hinged to the manual lever (23) and a driven rod fixed to the push plate (24). The active rod and the driven rod are hinged together by a pin.

8. The combined grease dispenser according to claim 1, characterized in that, The air blowing hose (52) is a high-pressure resistant rubber hose, and the inner wall of the high-pressure resistant rubber hose is provided with a fiber reinforcement layer to improve the hose's pressure resistance.

9. The combined grease dispenser according to claim 1, characterized in that, The outlet end of the refueling pipe (4) is provided with a conical nozzle, and the outer wall of the conical nozzle is provided with anti-slip texture, which facilitates tight connection with the refueling nozzle of the mechanical equipment and prevents it from falling off.

10. The combined grease dispenser according to claim 1, characterized in that, The upper surface of the connecting cover plate (1) is provided with a raised handle for easy gripping, and a sealing ring is fitted at the threaded connection between the connecting cover plate (1) and the grease tank (21) to enhance the sealing performance of the grease tank (21).

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