Electric oil gun with BLE (Bluetooth Low Energy) wireless interface

Abstract

The utility model relates to the field of grease guns, and discloses an electric grease gun with a BLE wireless interface, which comprises a gun body, a headstock is arranged on the gun body, one side of the headstock is connected with a grease outlet pipe, a placing groove is arranged on the gun body, a motor is connected in the placing groove, the motor is connected with a rotating shaft, the rotating shaft is connected with a rotating plate, and the rotating plate is connected with a grease outlet pipe. An eccentric shaft and a sliding block are arranged on the rotating plate, a first rack is connected to the sliding block, a transmission gear is connected to the first rack, a second rack is connected to the transmission gear, and a first plunger rod and a second plunger rod are arranged on the first rack and the second rack correspondingly; and a first oil chamber and a second oil chamber are arranged in the second cavity. According to the plunger pump, through the reciprocating motion of the first oil chamber, the second oil chamber, the first plunger block and the second plunger block, two-way oil outlet of the plunger blocks is achieved, and the working efficiency of the plunger and the stability of a motor load are improved.

Description

Technical Field

[0001] This utility model relates to the field of grease guns, and more particularly to electric grease guns with BLE wireless interfaces. Background Technology

[0002] An electric grease gun is a tool for adding grease to mechanical equipment. Its structure generally consists of a gun head, an oil reservoir, a single plunger structure, an eccentric transmission mechanism, and a geared motor. The geared motor drives the plunger to reciprocate through a slider transmission mechanism to add grease to the mechanical equipment. Its features include simple operation, labor-saving convenience, high pressure, and fast grease application, which can basically meet the grease application requirements of general mechanical equipment.

[0003] However, some existing electric grease guns have low efficiency and poor motor load stability because the single plunger can only work once per revolution of the output shaft.

[0004] Therefore, those skilled in the art have provided electric refueling nozzles with BLE wireless interfaces to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric fuel dispenser with a BLE wireless interface. By setting up a first oil chamber, a second oil chamber, and an oil outlet chamber, and through the reciprocating motion of the first and second plunger blocks, the plunger blocks achieve bidirectional oil outlet, thereby improving the working efficiency of the plunger and the stability of the motor load.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An electric refueling nozzle with a BLE wireless interface includes a headstock on the nozzle body, a cover plate connected to the headstock, an oil outlet pipe connected to one side of the headstock, an oil reservoir connected to one end of the headstock, a pull rod connected inside the oil reservoir, a first chamber on the headstock, a protective frame and a second chamber connected inside the first chamber, a placement slot on the nozzle body, a motor connected to the placement slot, a rotating shaft connected to the motor, a rotating plate connected to the rotating shaft, an eccentric shaft and a slider on the rotating plate, a first rack connected to the slider, a transmission gear connected to the first rack, a second rack connected to the transmission gear, a first plunger rod and a second plunger rod respectively on the first rack and the second rack, and a first oil chamber and a second oil chamber inside the second chamber.

[0008] The above technical solution utilizes a motor-driven rotation system to convert rotary motion into linear reciprocating motion, enabling alternating operation of the dual plungers and significantly improving the efficiency of oil injection and the stability of the motor load.

[0009] Furthermore, a switch control button is fixedly installed on the side of the gun body near the oil reservoir, the headstock is fixedly connected to the gun body, the cover plate is movably connected to the headstock, and a first bolt is threaded on the cover plate, which is threadedly connected to the headstock.

[0010] The above technical solution allows for convenient control of the motor's start and stop via a switch control button, enabling electric operation of the grease gun. The cover plate and headstock are connected by a first bolt, facilitating the removal of the cover plate for maintenance and repair of internal components.

[0011] Furthermore, the oil reservoir is threadedly connected to the headstock, a circular plate is movably provided inside the oil reservoir, a spring is fixedly connected to the bottom end of the circular plate, the other end of the spring is fixedly connected to the bottom end of the inside of the oil reservoir, one end of the pull rod is fixedly connected to the circular plate, and the pull rod is slidably connected to the oil reservoir.

[0012] Through the above technical solution, the oil reservoir is threadedly connected to the head seat, which facilitates its disassembly and installation and makes it easy to add grease. The arrangement of the round plate, spring and pull rod allows the spring force to push the round plate during grease use, keeping the grease close to the oil outlet and ensuring smooth grease delivery.

[0013] Furthermore, the protective frame is fixedly connected to the head base, a protective plate is movably provided on the protective frame, a second bolt is threaded on the protective plate, the second bolt is threadedly connected to the protective frame, and the second chamber is installed on the left side of the protective frame and fixedly connected to the head base;

[0014] The above technical solution, with its protective frame and protective plate, can protect the internal transmission components, prevent dust and debris from entering, and extend the service life of the equipment. The protective plate is connected by a second bolt, which facilitates the removal of the protective plate for inspection and maintenance of the internal components.

[0015] Furthermore, the motor is fixedly connected to the gun body, the rotating shaft is fixedly connected to the output end of the motor, a circular groove is provided at the bottom end of the headstock, the rotating plate is installed in the circular groove and fixedly connected to the rotating shaft, the rotating plate is rotatably connected to the headstock, and the eccentric shaft is fixedly installed on the rotating plate;

[0016] With the above technical solution, the motor drives the rotating plate to rotate via the rotating shaft, and the eccentric shaft rotates together with the rotating plate to provide power for subsequent transmission.

[0017] Furthermore, a limiting groove and a circular hole are provided at the bottom of the first chamber. The slider is arranged in a semi-circular arc shape and is fitted on the eccentric shaft. The slider is fixedly connected to one end of the first rack. The first rack is slidably connected to the head seat in the limiting groove. The transmission gear meshes with the first rack and the second rack respectively. A connecting rod is rotatably connected to the transmission gear. The connecting rod is installed in the circular hole and fixedly connected to the head seat. The first rack is fixedly connected to the first plunger rod, and the second rack is fixedly connected to the second plunger rod. A first plunger block is fixedly installed at the other end of the first plunger rod, and a second plunger block is fixedly installed at the other end of the second plunger rod.

[0018] With the above technical solution, when the eccentric shaft rotates, it drives the slider to slide in the limiting groove. The slider drives the first rack to make linear reciprocating motion. The first rack drives the second rack to make linear reciprocating motion in the opposite direction through the transmission gear. This causes the first plunger rod and the second plunger rod to reciprocate in the second chamber, realizing the intake and extrusion of grease.

[0019] Furthermore, the first oil chamber and the second oil chamber are symmetrically installed inside the second chamber. The bottom of the first oil chamber is provided with a first oil inlet hole, and the bottom of the second oil chamber is provided with a second oil inlet hole. The first plunger rod and the second plunger rod are slidably connected to the second chamber. The first plunger block is slidably connected to the first oil chamber, and the second plunger block is slidably connected to the second oil chamber.

[0020] The symmetrical arrangement of the first and second oil chambers, as described above, makes the delivery of butter more stable. The butter is drawn in through the first and second oil inlets, and the butter is extruded through the reciprocating motion of the first and second plunger blocks within the oil chambers.

[0021] Furthermore, an oil outlet chamber is provided above the first oil chamber and the second oil chamber. The top of the first oil chamber and the second oil chamber are respectively provided with a first oil outlet hole and a second oil outlet hole. The oil outlet chamber is respectively provided with a first check valve and a second check valve.

[0022] The above technical solution, with its oil outlet chamber, first oil outlet hole, second oil outlet hole, first check valve, and second check valve, ensures that grease can only flow from the oil chamber to the oil outlet chamber, preventing grease backflow and ensuring the stability and accuracy of the oil output.

[0023] This utility model has the following beneficial effects:

[0024] 1. The electric fuel nozzle with BLE wireless interface proposed in this utility model achieves bidirectional oil output by setting a first oil chamber, a second oil chamber and an oil outlet chamber, and by the reciprocating motion of the first plunger block and the second plunger block, thereby improving the working efficiency of the plunger and the stability of the motor load.

[0025] 2. The electric grease gun with BLE wireless interface proposed in this utility model ensures that grease can only flow from the oil chamber to the oil outlet chamber by setting an oil outlet chamber, a first oil outlet hole, a second oil outlet hole, a first check valve and a second check valve, preventing grease backflow and ensuring the stability and accuracy of oil dispensing. Attached Figure Description

[0026] Figure 1 This is an isometric view of the electric refueling nozzle with a BLE wireless interface proposed in this utility model.

[0027] Figure 2 This is a partial cross-sectional view of the electric fuel nozzle with a BLE wireless interface proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the internal structure of the headstock of the electric refueling nozzle with a BLE wireless interface proposed in this utility model.

[0029] Figure 4 This is a cross-sectional view of the headstock of the electric refueling nozzle with a BLE wireless interface proposed in this utility model.

[0030] Figure 5 This is a partial structural diagram of the electric refueling nozzle with a BLE wireless interface proposed in this utility model.

[0031] Figure 6 This is a partial structural exploded view of the electric fuel nozzle with a BLE wireless interface proposed in this utility model.

[0032] Legend:

[0033] 1. Gun body; 2. Switch control button; 3. Headstock; 4. Cover plate; 5. First bolt; 6. Oil outlet pipe; 7. Oil reservoir; 8. Circular plate; 9. Spring; 10. Pull rod; 11. First chamber; 12. Protective frame; 13. Protective plate; 14. Second bolt; 15. Placement slot; 16. Motor; 17. Rotating shaft; 18. Circular groove; 19. Rotating plate; 20. Eccentric shaft; 21. Slider; 22. Limiting groove; 23. First rack; 24. Transmission gear; 25. Connecting rod; 26. Second rack; 27. First plunger rod; 28. Second plunger rod; 29. ​​First plunger block; 30. Second plunger block; 31. Circular hole; 32. Second chamber; 33. First oil chamber; 34. First oil inlet; 35. Second oil chamber; 36. Second oil inlet; 37. Oil outlet chamber; 38. First oil outlet; 39. Second oil outlet; 40. First check valve; 41. Second check valve. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1-3 A specific embodiment of this utility model is provided as follows:

[0036] An electric grease gun with a BLE wireless interface includes a gun body 1, a headstock 3 on the gun body 1, a cover plate 4 connected to the headstock 3 for easy maintenance of the headstock 3, an oil outlet pipe 6 connected to one side of the headstock 3, and grease being dispensed from the oil outlet chamber 37 through the oil outlet pipe 6. An oil reservoir 7 is connected to one end of the headstock 3, and a pull rod 10 is connected inside the oil reservoir 7. Through the internal structure of the oil reservoir 7 and the design of the pull rod 10, the grease is always kept close to the oil outlet, ensuring smooth grease delivery. A first chamber 11 is formed on the headstock 3, and a protective frame 12 and a second chamber 32 are connected inside the first chamber 11. A placement slot 15 is formed on the gun body 1, and a motor 16 is connected inside the placement slot 15. A rotating shaft 17 is connected to the motor 16, and a rotating plate 19 is connected to the rotating shaft 17. The motor 16 drives the rotating shaft 17 to rotate, causing the rotating plate 19 to rotate. The upper part is provided with an eccentric shaft 20 and a slider 21. The rotation of the rotating plate 19 drives the eccentric shaft 20 to rotate, causing the slider 21 to move. The slider 21 is connected to a first rack 23, the first rack 23 is connected to a transmission gear 24, and the transmission gear 24 is connected to a second rack 26. When the eccentric shaft 20 rotates, it drives the slider 21 to slide in the limiting groove 22. The slider 21 drives the first rack 23 to perform linear reciprocating motion. The first rack 23 drives the second rack 26 to perform linear reciprocating motion in the opposite direction through the transmission gear 24. The first rack 23 and the second rack 26 are respectively provided with a first plunger rod 27 and a second plunger rod 28, which in turn drive the first plunger rod 27 and the second plunger rod 28 to perform reciprocating motion. The second chamber 32 is provided with a first oil chamber 33 and a second oil chamber 35. The symmetrical arrangement of the first oil chamber 33 and the second oil chamber 35 makes the delivery of grease more stable.

[0037] Reference Figure 4-6A switch control button 2 is fixedly installed on the side of the gun body 1 near the oil reservoir 7. The headstock 3 is fixedly connected to the gun body 1, and the cover plate 4 is movably connected to the headstock 3. The cover plate 4 is threaded with a first bolt 5, which is threadedly connected to the headstock 3. The switch control button 2 can easily control the start and stop of the motor 16, realizing the electric operation of the grease gun. The cover plate 4 is connected to the headstock 3 by the first bolt 5, which facilitates the removal of the cover plate 4 for maintenance and repair of internal components. The oil reservoir 7 is threadedly connected to the headstock 3. A circular plate 8 is movably installed inside the oil reservoir 7. A spring 9 is fixedly connected to the bottom end of the circular plate 8, and the other end of the spring 9 is fixedly connected to the bottom end of the inside of the oil reservoir 7. One end of the pull rod 10 is fixedly connected to the circular plate 8, and the pull rod 10 is slidably connected to the oil reservoir 7. 7 is threadedly connected to the headstock 3 for easy disassembly and installation, facilitating grease addition. The arrangement of the round plate 8, spring 9, and pull rod 10 allows the round plate 8 to be pushed by the spring force of spring 9 during grease use, keeping the grease close to the outlet and ensuring smooth grease delivery. The protective frame 12 is fixedly connected to the headstock 3, and a protective plate 13 is movably mounted on the protective frame 12. A second bolt 14 is threaded onto the protective plate 13 and threadedly connected to the protective frame 12. The second chamber 32 is installed on the left side of the protective frame 12 and fixedly connected to the headstock 3. The protective frame 12 and protective plate 13 protect the internal transmission components, preventing dust and debris from entering and extending the service life of the equipment. The protective plate is connected by the second bolt 14. 13. The protective plate 13 facilitates the disassembly of internal components for inspection and maintenance. The motor 16 is fixedly connected to the gun body 1, and the rotating shaft 17 is fixedly connected to the output end of the motor 16. A circular groove 18 is provided at the bottom of the headstock 3. A rotating plate 19 is installed in the circular groove 18 and fixedly connected to the rotating shaft 17. The rotating plate 19 is rotatably connected to the headstock 3. An eccentric shaft 20 is fixedly installed on the rotating plate 19. The motor 16 drives the rotating plate 19 to rotate via the rotating shaft 17. The eccentric shaft 20 rotates together with the rotating plate 19, providing power for subsequent transmission. A limit groove 22 and a circular hole 31 are provided at the bottom of the first chamber 11. The slider 21 is semi-circular in shape and is fitted onto the eccentric shaft 20. The slider 21 is fixedly connected to one end of the first rack 23. The first rack 23... The limiting groove 22 is slidably connected to the headstock 3. The transmission gear 24 meshes with the first rack 23 and the second rack 26 respectively. A connecting rod 25 is rotatably connected to the transmission gear 24. The connecting rod 25 is installed in the round hole 31 and fixedly connected to the headstock 3. The first rack 23 is fixedly connected to the first plunger rod 27, and the second rack 26 is fixedly connected to the second plunger rod 28. A first plunger block 29 is fixedly installed at the other end of the first plunger rod 27, and a second plunger block 30 is fixedly installed at the other end of the second plunger rod 28. When the eccentric shaft 20 rotates, it drives the slider 21 to slide in the limiting groove 22. The slider 21 drives the first rack 23 to perform linear reciprocating motion. The first rack 23 drives the second rack 26 to perform linear reciprocating motion in the opposite direction through the transmission gear 24.This causes the first plunger rod 27 and the second plunger rod 28 to reciprocate within the second chamber 32, achieving the intake and extrusion of butter. The first oil chamber 33 and the second oil chamber 35 are symmetrically installed inside the second chamber 32. The bottom of the first oil chamber 33 has a first oil inlet hole 34, and the bottom of the second oil chamber 35 has a second oil inlet hole 36. The first plunger rod 27 and the second plunger rod 28 are slidably connected to the second chamber 32, the first plunger block 29 is slidably connected to the first oil chamber 33, and the second plunger block 30 is slidably connected to the second oil chamber 35. The symmetrical arrangement of the first oil chamber 33 and the second oil chamber 35 makes the butter delivery more stable. The first plunger block 29 and the second plunger block 30 reciprocate within the oil chamber to draw in the butter. An oil outlet chamber 37 is located above the first oil chamber 33 and the second oil chamber 35. A first oil outlet hole 38 and a second oil outlet hole 39 are respectively located at the top of the interior of the first oil chamber 33 and the second oil chamber 35. A first one-way valve 40 and a second one-way valve 41 are respectively installed inside the oil outlet chamber 37. The arrangement of the oil outlet chamber 37, the first oil outlet hole 38, the second oil outlet hole 39, and the first and second one-way valves 40 and 41 ensures that the butter can only flow from the oil chamber to the oil outlet chamber 37, preventing backflow and ensuring the stability and accuracy of the butter flow.

[0038] Working principle: First, place the grease in the oil reservoir 7, then thread the oil reservoir 7 onto the headstock 3. Next, establish a BLE connection with the grease gun via the accompanying APP to control and obtain the grease gun's usage time and output. Then, press the switch control button 2 to start the motor 16. The motor 16 drives the rotating plate 19 to rotate via the rotating shaft 17. The eccentric shaft 20 on the rotating plate 19 rotates accordingly. The eccentric shaft 20 drives the slider 21 to reciprocate within the limiting groove 22. The slider 21 drives the first rack 23 to reciprocate linearly within the limiting groove 22. The first rack 23 drives the second rack 26 to reciprocate linearly in the opposite direction via the transmission gear 24. The first rack 23 drives the first plunger rod 27 and the first plunger block 29 to reciprocate within the first oil chamber 33. The second rack 26 drives the second plunger rod 28 and the second plunger block 30 within the second oil chamber 33. The first plunger block 29 moves upward, and when it moves upward, the grease enters the first oil chamber 33 through the first oil inlet 34. When it moves downward, it gradually compresses the grease in the first oil chamber 33. When the pressure in the first oil chamber 33 exceeds the pressure of the spring 9 of the first one-way valve 40, it pushes open the ball, and the grease in the first oil chamber 33 is forced into the oil outlet chamber 37 through the first oil outlet 38. Similarly, the grease in the second oil chamber 35 is also sucked in through the second oil inlet 36 and forced out through the second oil outlet 39 to the oil outlet chamber 37. Finally, the grease is squeezed out through the oil outlet pipe 6, thus achieving bidirectional oil output when the first plunger block 29 and the second plunger block 30 reciprocate, thereby completing the filling work. During the use of grease, the circular plate 8 in the oil reservoir 7 is constantly pushed towards the head seat 3 by the elastic force of the spring 9 to ensure a smooth supply of grease.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Electrically powered fueling gun with BLE wireless interface, comprising a gun body (1), characterized in that: The gun body (1) is provided with a head seat (3), the head seat (3) is connected with a cover plate (4), one side of the head seat (3) is connected with an oil outlet pipe (6), one end of the head seat (3) is connected with an oil storage cylinder (7), the oil storage cylinder (7) is connected with a pull rod (10), the head seat (3) is provided with a first cavity (11), the first cavity (11) is connected with a protective frame (12) and a second cavity (32), the gun body (1) is provided with a placing groove (15), the placing groove (15) is connected with a motor (16), the motor (16) is connected with a rotating shaft (17), the rotating shaft (17) is connected with a rotating plate (19), the rotating plate (19) is provided with an eccentric shaft (20) and a sliding block (21), the sliding block (21) is connected with a first rack (23), the first rack (23) is connected with a transmission gear (24), the transmission gear (24) is connected with a second rack (26), the first rack (23) and the second rack (26) are respectively provided with a first plunger rod (27) and a second plunger rod (28), the second cavity (32) is provided with a first oil chamber (33) and a second oil chamber (35).

2. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The gun body (1) is fixedly installed with a switch control button (2) on the side close to the oil storage cylinder (7), the head seat (3) is fixedly connected with the gun body (1), the cover plate (4) is movably connected with the head seat (3), the cover plate (4) is screwedly provided with a first bolt (5), and the first bolt (5) is screwedly connected with the head seat (3).

3. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The oil storage cylinder (7) is screwedly connected with the head seat (3), the oil storage cylinder (7) is movably provided with a circular plate (8) inside, the circular plate (8) is fixedly connected with a spring (9) at the bottom end, the other end of the spring (9) is fixedly connected with the bottom end inside the oil storage cylinder (7), one end of the pull rod (10) is fixedly connected with the circular plate (8), and the pull rod (10) is slidably connected with the oil storage cylinder (7).

4. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The protective frame (12) is fixedly connected with the head seat (3), the protective frame (12) is movably provided with a protective plate (13), the protective plate (13) is screwedly provided with a second bolt (14), the second bolt (14) is screwedly connected with the protective frame (12), and the second cavity (32) is installed on the left side of the protective frame (12) and is fixedly connected with the head seat (3).

5. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The motor (16) is fixedly connected with the gun body (1), the rotating shaft (17) is fixedly connected with the output end of the motor (16), the bottom end of the head seat (3) is provided with a circular groove (18), the rotating plate (19) is installed in the circular groove (18) and is fixedly connected with the rotating shaft (17), the rotating plate (19) is rotatably connected with the head seat (3), and the eccentric shaft (20) is fixedly installed on the rotating plate (19).

6. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The first chamber (11) is provided with a limiting groove (22) and a circular hole (31) at the bottom end, the slider (21) is arranged in a semicircular arc shape, the slider (21) is sleeved on the eccentric shaft (20), one end of the slider (21) is fixedly connected with the first rack (23), the first rack (23) is slidably connected with the head seat (3) in the limiting groove (22), the transmission gear (24) is meshed with the first rack (23) and the second rack (26) respectively, the connecting rod (25) is rotatably connected on the transmission gear (24), the connecting rod (25) is installed in the circular hole (31) and is fixedly connected with the head seat (3), the first rack (23) is fixedly connected with the first plunger rod (27), the second rack (26) is fixedly connected with the second plunger rod (28), the other end of the first plunger rod (27) is fixedly provided with a first plunger block (29), the other end of the second plunger rod (28) is fixedly provided with a second plunger block (30).

7. The electrically powered fuel gun with BLE wireless interface of claim 6, characterized in that: The first oil chamber (33) and the second oil chamber (35) are symmetrically installed in the second chamber (32), the first oil chamber (33) is provided with a first oil inlet hole (34) at the bottom end, the second oil chamber (35) is provided with a second oil inlet hole (36) at the bottom end, the first plunger rod (27) and the second plunger rod (28) are slidably connected with the second chamber (32), the first plunger block (29) is slidably connected with the first oil chamber (33), and the second plunger block (30) is slidably connected with the second oil chamber (35).

8. The electric powered dispensing gun with BLE wireless interface of claim 1, wherein: The first oil chamber (33) and the second oil chamber (35) are provided with an oil outlet cavity (37) above, the first oil chamber (33) and the second oil chamber (35) are respectively provided with a first oil outlet hole (38) and a second oil outlet hole (39) at the top end, and the oil outlet cavity (37) is respectively provided with a first one-way valve (40) and a second one-way valve (41).

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