Grease gun pressure oil supply control method and grease gun

Abstract

The invention provides a grease gun pressure oil supply control method and a grease gun, and the method comprises the steps: starting and carrying out electric quantity self-inspection, and if the electric quantity does not meet a preset value, giving an alarm; if the electric quantity meets the preset value, detecting the current position of the quantity adjusting knob; if the quantity adjusting knob is located at the non-quantitative gear, after the pressure in the pump body reaches a pressure set value, the pressure is kept stable and kept for a first set time, then the pump body is controlled to continue to operate for a second set time and then stops, and an alarm is given out to indicate that oil injection is completed; if the quantity adjusting knob is located at the quantitative gear, whether the pressure in the pump body reaches a pressure preset value or not in the operation process is judged, if yes, the pressure is kept stable and kept for a first set time, then the pump body is controlled to continue to operate for a second set time and then is stopped, an alarm is given, and oil injection is completed; if not, after the oil outlet amount reaches the set oil outlet amount, the pump body is controlled to stop, an alarm is given out, and oil injection is completed. Compared with the prior art, the grease gun has the advantages that grease waste can be avoided, and meanwhile an operator is reminded.

Description

Technical Field

[0001] The invention relates to a grease gun pressure oil supply control method and a grease gun, belonging to the technical field of grease guns. Background Art

[0002] A grease gun is a hand tool used to add grease to mechanical equipment.

[0003] The existing grease gun solution will discharge grease through external overflow to remind the operator after reaching high pressure. However, in some dim environments, the operator may not notice the discharge of grease, resulting in waste of overflow grease, and also the problem of difficulty in cleaning caused by grease overflow.

[0004] In view of this, it is necessary to propose improvements to the existing grease gun to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a grease gun pressure oil supply control method, which can avoid the waste of grease and play a reminder role at the same time.

[0006] To achieve the above object, the present invention provides a grease gun pressure oil supply control method, comprising:

[0007] Step S1, the grease gun is started and a power self-check is performed. If the power meets the preset value, the process proceeds to step S2; if the power does not meet the preset value, a warning is issued;

[0008] Step S2, detecting the current position of the volume adjustment knob, if the volume adjustment knob is in the variable-quantity gear, proceeding to step S3; if the volume adjustment knob is in the quantitative gear, proceeding to step S4;

[0009] Step S3, when the pressure in the pump body reaches the pressure setting value, the pressure is maintained stable and maintained for a first set time, and then the pump body is controlled to continue running for a second set time and then stops, and the grease gun issues a warning to indicate that the oil filling is completed;

[0010] Step S4, determines whether the pressure in the pump body reaches the preset pressure value during operation. If so, maintain the pressure stable and maintain it for the first set time. After that, control the pump body to continue running for the second set time and then stop. The grease gun issues a warning to indicate that the oil filling is completed. If not, wait until the oil output reaches the set oil output, control the pump body to stop, and the grease gun issues a warning to indicate that the oil filling is completed.

[0011] As a further improvement of the present invention, in step S3, the pressure setting value includes a low pressure setting value and a high pressure setting value, and step S3 specifically includes:

[0012] Step S31, when the pressure in the pump body reaches the low pressure setting value, determine whether the pressure is stable at the low pressure setting value and maintained for the first setting time. If so, control the pump body to continue running for the second setting time and then stop, and the grease gun issues a warning to indicate that the oil filling is completed; if not, control the pump body to increase the pressure and enter step S32;

[0013] Step S32, when the pressure in the pump body reaches the high pressure setting value, the pressure is controlled to be stable at the high pressure setting value and maintained for a first setting time, and then the pump body is controlled to continue running for a second setting time and then stop, and the grease gun issues a warning to indicate that the oil injection is completed.

[0014] As a further improvement of the present invention, the first set time is 2-10 seconds, and the second set time is also 2-10 seconds.

[0015] As a further improvement of the present invention, in steps S3 and S4, when the oil output reaches the set oil output, the pump body is immediately controlled to stop, and the grease gun issues a warning to indicate that the oil filling is completed.

[0016] As a further improvement of the present invention, the grease gun includes a battery pack, a controller and an alarm. The battery pack is used to power the controller and the alarm. The controller is used to control the battery pack to perform self-check of power, control the operation of the pump body and control the alarm to issue an alarm.

[0017] As a further improvement of the present invention, the alarm device includes an illumination lamp and a buzzer, wherein the illumination lamp is used to emit light and flash, and the buzzer is used to emit an alarm sound.

[0018] Another object of the present invention is to provide a grease gun having the above-mentioned pressure oil supply control method.

[0019] To achieve the above object, the present invention provides a grease gun, comprising:

[0020] A pump body, used to pump grease out of the oil storage pipe;

[0021] A pressure regulating assembly is assembled in the pump body and is used to regulate the pressure in the pump body to control the oil output of the grease gun; the pressure regulating assembly includes a volume regulating knob, and the volume regulating knob can be rotated to switch between a non-quantitative gear and a quantitative gear;

[0022] The control component includes a controller and an alarm. The controller is used to control the pressure in the pump body to maintain stability and maintain it for a first set time after the pressure in the pump body reaches a set pressure value, and then control the pump body to continue running for a second set time and then stop; the controller is also used to control the alarm to issue an alarm to indicate that the oil injection is completed.

[0023] As a further improvement of the present invention, the grease gun further comprises a battery pack, and the controller is further used to control the battery pack to perform a self-check of the power level, and to control the alarm to issue an alarm when the power level does not meet a preset value.

[0024] As a further improvement of the present invention, the alarm device includes an illumination lamp and a buzzer, wherein the illumination lamp is used to emit light and flash, and the buzzer is used to emit an alarm sound.

[0025] As a further improvement of the present invention, the grease gun further comprises an oil drain pipe assembly, which is connected to the pump body so that the grease in the oil storage pipe can be discharged through the oil drain pipe assembly.

[0026] The beneficial effect of the present invention is that the control method of the present invention controls the grease gun to stop working and issues an alarm to remind the operator that the oil filling is completed by detecting the current position of the adjustment knob and judging whether the pressure in the pump body reaches the pressure setting value during operation. Compared with the prior art, the grease gun of the present invention can avoid grease waste and serve as a reminder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the grease gun of the present invention.

[0028] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the grease gun from another angle.

[0029] Figure 3 yes Figure 1 Schematic diagram of the internal structure assembly of the grease gun.

[0030] Figure 4 yes Figure 1 Cross-section of a grease gun.

[0031] Figure 5 yes Figure 4 Enlarged view of the circle A in the middle.

[0032] Figure 6 yes Figure 3 Assembly diagram of the medium voltage regulating component.

[0033] Figure 7 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle adjustment knob.

[0034] Figure 8 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle adjustment column.

[0035] Fig. 9 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle adjustment part.

[0036] Fig.10 yes Figure 3 Assembly diagram of the pump body, pressure regulating component and motor.

[0037] Fig.11 yes Fig.10 Enlarged view of the circle B in the middle.

[0038] Fig.12 The present invention is a flowchart of a grease gun pressure oil supply control method.

[0039] Fig.13 It is a flow chart of an embodiment of a grease gun pressure oil supply control method of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] See also Figure 1-Figure 3 As shown, the present invention discloses a grease gun 100, including a housing 101, a motor 102 installed in the housing 101, a pump body 103 connected to the housing 101, an oil storage pipe 104, an eccentric reciprocating component 105, a pressure regulating component 106, a speed reduction component (not shown), an oil discharge pipe component 108, a control component 109, and a battery pack (not shown).

[0042] The pump body 103 is connected to the oil storage pipe 104 and is used to pump out grease from the oil storage pipe 104. An oil outlet circuit is provided in the pump body 103, and the oil outlet circuit includes an oil outlet chamber 1 and an overflow hole 2 which are connected to each other. The overflow hole 2 is connected to the oil storage pipe 104. The eccentric reciprocating assembly 105 is installed at the top of the pump body 103. The eccentric reciprocating assembly 105 includes a plunger 3. The plunger 3 can reciprocate in the pump body 103, so that the grease in the oil storage pipe 104 enters the oil outlet chamber 1 and is then discharged into an external oil filling device (not shown) through the oil discharge pipe assembly 108. When the grease gun 100 is about to be filled with grease, When the reciprocating motion has not stopped, the pressure in the oil outlet chamber 1 will rise; the pressure regulating component 106 is installed in the oil outlet circuit, and is used to adjust the pressure in the pump body 103 to control the oil output of the grease gun 100. In the initial state, the pressure regulating component 106 blocks the oil outlet chamber 1 and the overflow hole 2, so that the grease in the oil outlet chamber 1 flows into the external oil filling device; and when the pressure in the oil outlet chamber 1 is greater than the pressure output by the pressure regulating component 106, the pressure regulating component 106 is displaced, so that the oil outlet chamber 1 is connected with the overflow hole 2, and the grease in the oil outlet chamber 1 flows back to the oil storage pipe 104 through the overflow hole 2.

[0043] The control assembly 109 is installed in the housing 101. The control assembly 109 includes a controller 4 and an alarm 5. The controller 4 is used to control the pressure in the pump body 103 to maintain stability and maintain the pressure for a first set time after the pressure in the pump body 103 reaches the pressure setting value, that is, when the pressure in the oil outlet chamber 1 reaches the pressure output by the pressure regulating assembly 106, and then control the pump body 103 to continue running for a second set time and then stop; the controller 4 is also used to control the alarm 5 to issue an alarm to indicate that the oil filling is completed; the alarm 5 includes a lighting lamp and a buzzer, the lighting lamp is used to emit light and flash, and the buzzer is used to emit an alarm sound. The grease gun 100 also includes a battery pack, which supplies power to the motor 102, the controller 4 and the alarm 5. The controller 4 is also used to control the battery pack to perform a self-check of the power, and control the alarm 5 to issue an alarm when the power does not meet the preset value. The reduction assembly is connected to the motor 102 and the eccentric reciprocating assembly 105 to provide power for the eccentric reciprocating assembly 105 to drive the plunger 3 to reciprocate.

[0044] like Figure 4-Figure 9 As shown, the pressure regulating assembly 106 includes a first spring 6, a valve core 7 located at one end of the first spring 6, and a third steel ball 8 connected to the valve core 7. The oil outlet chamber 1 is connected to the overflow hole 2 through a through hole 9. In the initial state, the third steel ball 8 fits with the through hole 9 to block the oil outlet chamber 1 and the overflow hole 2. When the pressure in the oil outlet chamber 1 is greater than the pressure output by the pressure regulating assembly 106, the third steel ball 8 is separated from the through hole 9, so that the oil outlet chamber 1 is connected to the overflow hole 2. It can be understood that a guide groove (not numbered) is provided around one end of the valve core 7 close to the third steel ball 8. After the third steel ball 8 is separated from the through hole 9, the grease in the oil outlet chamber 1 will flow into the overflow hole 2 through the guide groove and finally flow back to the oil storage pipe 104.

[0045] The pressure regulating assembly 106 also includes an adjusting knob 10 and an adjusting structure 11. The adjusting knob 10 is rotated to adjust the pressure output by the pressure regulating assembly 106. One end of the adjusting structure 11 is threadedly connected to the pump body 103, and the other end is connected to the adjusting knob 10 and can rotate with the adjusting knob 10 to achieve axial movement in the pump body 103.

[0046] Specifically, the adjustment structure 11 includes an adjustment column 12 and an adjustment member 13, one end of the adjustment column 12 is connected to the adjustment knob 10, and the other end is threadedly connected to the pump body 103, and the adjustment member 13 is accommodated in the adjustment column 12 and threadedly connected to the adjustment column 12. When the adjustment knob 10 is rotated, the adjustment column 12 and the adjustment member 13 as a whole follow the rotation of the adjustment knob 10 and move axially in the pump body 103. The adjustment member 13 is also configured to be able to rotate relative to the adjustment column 12 and move axially in the adjustment column 12 to achieve fine-tuning of the pressure.

[0047] The pressure regulating assembly 106 also includes a first steel ball 14, which is located at one end of the first spring 6 away from the valve core 7, the first steel ball 14 is located in the adjusting column 12 and in contact with the adjusting member 13, one end of the first spring 6 is sleeved on the valve core 7, and the other end is in contact with the first steel ball 14, when the adjusting column 12 and the adjusting member 13 move axially, the first spring 6 is compressed.

[0048] The adjusting column 12 is cylindrical, and a positioning member 121 protruding outward is provided on the outer peripheral wall of the adjusting column 12. A fixing groove 16 is correspondingly provided in the adjusting knob 10. The positioning member 121 is received in the fixing groove 16 and can move axially relative to the fixing groove 16. A first thread structure 122 is provided on the outer peripheral wall of the adjusting column 12 at one end away from the positioning member 121. The adjusting column 12 is connected to the pump body 103 through the first thread structure 122, so that when the adjusting knob 10 is turned, the adjusting column 12 can move axially in the pump body 103.

[0049] The adjusting column 12 is a hollow annular structure, and a second thread structure 123 is provided on the inner circumferential wall of the adjusting column 12 near the adjusting knob 10, and a third thread structure 131 matching the second thread structure 123 is correspondingly provided on the outer circumferential wall of the adjusting member 13, so that the adjusting member 13 can move axially in the adjusting column 12. The adjusting member 13 is cylindrical, and a limiting groove 132 is provided on the end of the adjusting member 13 near the adjusting knob 10, and an adjusting hole 1001 is correspondingly provided on the adjusting knob 10, and the limiting groove 132 and the adjusting hole 1001 are mutually aligned and exposed.

[0050] Preferably, the adjusting knob 10 is connected to the pump body 103 via a buckle, and a buckle 1002 extending outward is provided on the outer wall of the adjusting knob 10, and a buckle groove (not numbered) corresponding to the buckle 1002 is provided on the inner wall of the pump body 103, and the buckle groove is arranged in an annular shape, so that the adjusting knob 10 can rotate relative to the pump body 103. The adjusting knob 10 also includes a decorative cover 17 for covering the adjusting hole 1001, and the decorative cover 17 is movably connected to the adjusting knob 10.

[0051] like Figure 10-11 As shown, the adjusting knob 10 is provided with a first gear, a second gear and a third gear. When the adjusting knob 10 is rotated to the first gear, the pressure regulating assembly 106 outputs a first pressure. When the adjusting knob 10 is rotated to the second gear, the pressure regulating assembly 106 outputs a second pressure. When the adjusting knob 10 is rotated to the third gear, the pressure regulating assembly 106 outputs a third pressure. The first pressure is greater than the second pressure, the second pressure is greater than the third pressure, the first pressure is a high pressure, and the second pressure is a low pressure. Preferably, a stopper column 1003 is provided on the adjusting knob 10, so that the rotation direction of the adjusting knob 10 is from the first gear to the second gear and then to the third gear, or from the third gear to the second gear and then to the first gear.

[0052] The pump body 103 is provided with a first gear mark 1031, a second gear mark 1032 and a third gear mark 1033, and the regulating knob 10 is provided with an indication arrow 1004. When the regulating knob 10 is rotated to the first gear, the indication arrow 1004 points to the first gear mark 1031, and at this time, the first pressure output by the pressure regulating component 106 is maximum; when the regulating knob 10 is rotated to the second gear, the indication arrow 1004 points to the second gear mark 1032, and at this time, the second pressure output by the pressure regulating component 106 is half of the first pressure; when the regulating knob 10 is rotated to the second gear, the indication arrow 1004 points to the second gear mark 1032, and at this time, the second pressure output by the pressure regulating component 106 is half of the first pressure; When the adjusting knob 10 is rotated to the third gear, the indicating arrow 1004 points to the third gear mark 1033. At this time, the third pressure output by the pressure regulating assembly 106 is zero, so that the oil outlet chamber 1 is connected with the overflow hole 2; further, when the oil outlet chamber 1 is in a high-pressure state, the pressure can be relieved by rotating the adjusting knob 10 to the third gear, thereby facilitating the removal of the oil drain pipe assembly 108, and the oil drain pipe assembly 108 is connected with the oil outlet chamber 1, so that the gas brought into the oil storage pipe 104 when storing oil is discharged through the oil drain pipe assembly 108.

[0053] like Figure 3As shown, the pressure regulating assembly 106 also includes a volume adjustment knob 18, which can be rotated to switch between the variable-quantity gear and the quantitative gear. In this embodiment, the variable-quantity gear is displayed as NO, and the quantitative gear has 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, and 50 adjustment gears, which are not limited here. When the volume adjustment knob 18 is in the variable-quantity gear, when the pressure in the pump body 103 reaches the pressure setting value, the pressure is maintained stable and maintained for the first set time, and then the pump body 103 is controlled to continue to run for the second set time and then stop, and the grease gun 100 issues a warning to indicate that the oil injection is completed;

[0054] When the adjustment knob 18 is in the quantitative gear, it is determined whether the pressure in the pump body 103 reaches the preset pressure value during operation. If so, the pressure is maintained stable and maintained for a first set time. Thereafter, the pump body 103 is controlled to continue running for a second set time and then stops, and the grease gun 100 issues a warning to indicate that the oil filling is complete. If not, after the oil output reaches the set oil output, the pump body 103 is controlled to stop, and the grease gun 100 issues a warning to indicate that the oil filling is complete.

[0055] like Figure 4 As shown, the pressure regulating assembly 106 also includes a second spring 19 and a second steel ball 20, one end of the second spring 19 is in contact with the pump body 103, and the other end is in contact with the second steel ball 20, the second steel ball 20 is in contact with the adjusting knob 10, and a rotation path (unnumbered) of the second steel ball 20 is correspondingly provided on the adjusting knob 10, and a groove (unnumbered) is provided on the rotation path, so that the adjusting knob 10 has a sense of position when shifting gears, and the second steel ball 20 is always in contact with the adjusting knob 10 during the rotation of the adjusting knob 10.

[0056] See also Figure 12-13 As shown, the present invention also proposes a grease gun pressure oil supply control method, which mainly includes the following steps:

[0057] In step S1, a battery pack (not shown) is inserted into the grease gun 100 to trigger a trigger (not shown). The grease gun 100 starts and performs a self-check of the power level. If the power level meets the preset value, the process proceeds to step S2. If the power level does not meet the preset value, a warning is issued, i.e., the lighting light flashes as a reminder.

[0058] Step S2, detecting the current position of the volume adjustment knob 18, if the volume adjustment knob 18 is in the variable-quantity gear position, proceeding to step S3; if the volume adjustment knob 18 is in the quantitative gear position, proceeding to step S4.

[0059] Step S3, when the pressure in the pump body 103 reaches the pressure setting value, the pressure is maintained stable and maintained for the first setting time. At this time, the controller 4 detects that the current required by the motor 102 is stable and maintained for the first setting time. After that, the pump body 103 is controlled to continue running for the second setting time and then stops. The grease gun 100 issues a warning to indicate that the oil injection is completed.

[0060] Wherein, the pressure setting value includes a low pressure setting value and a high pressure setting value, and step S3 specifically includes:

[0061] Step S31, when the pressure in the pump body 103 reaches the low pressure setting value, it is determined whether the pressure is stable at the low pressure setting value and maintained for the first setting time, that is, whether the controller 4 detects whether the current required by the motor 102 is stable and maintained for the first setting time. If so, the pump body 103 is controlled to continue to run for the second setting time and then stop, and the grease gun 100 issues a warning to indicate that the oil injection is completed; if not, the pump body 103 is controlled to increase the pressure and enter step S32;

[0062] Step S32, when the pressure in the pump body 103 reaches the high pressure setting value, the pressure is controlled to be stable at the high pressure setting value and maintained for the first setting time. At this time, the current required by the motor 102 is stable and maintained for the first setting time. The pump body 103 is then controlled to continue running for the second setting time and then stop. The grease gun 100 issues a warning, indicating that the oil injection is completed.

[0063] Step S4, determining whether the pressure in the pump body 103 reaches the preset pressure value during operation, if so, maintaining the pressure stable and maintaining the first set time, at which time the current required by the motor 102 is stable and maintained for the first set time, and then controlling the pump body 103 to continue running for the second set time and then stop, and the grease gun 100 issues a warning, indicating that the oil filling is completed; if not, after the oil output reaches the set oil output, the pump body 103 is controlled to stop, and the grease gun 100 issues a warning, indicating that the oil filling is completed.

[0064] In this embodiment, the first set time is 2-10 seconds, preferably 5 seconds; the second set time is also 2-10 seconds, preferably 5 seconds; of course, the present invention does not limit the specific values ​​of the first set time and the second set time, as long as the sum of the first set time and the second set time is not greater than 15 seconds.

[0065] It should be noted that in steps S3 and S4, regardless of whether the pressure in the pump body 103 reaches the set pressure value, as long as the oil output reaches the set oil output, the pump body 103 is immediately controlled to stop and the grease gun 100 issues a warning to indicate that the oil injection is completed.

[0066] In summary, the control method of the present invention switches between the variable quantity gear and the fixed quantity gear through the adjustment knob 18, and controls the grease gun 100 to stop working and issue a warning by judging whether the pressure in the pump body 103 reaches the pressure set value during operation, reminding the operator that the oil injection is completed. Compared with the prior art, the grease gun 100 of the present invention can avoid waste of grease and play a reminder role at the same time.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A grease gun pressure oil supply control method, It is characterized in that include: Step S1, the grease gun is started and a power self-check is performed. If the power meets the preset value, the process proceeds to step S2; If the power level does not meet the preset value, a warning will be issued; Step S2, detecting the current position of the volume adjustment knob, if the volume adjustment knob is in the variable-quantity gear, proceeding to step S3; if the volume adjustment knob is in the quantitative gear, proceeding to step S4; Step S3, when the pressure in the pump body reaches the pressure setting value, the pressure is maintained stable and maintained for a first set time, and then the pump body is controlled to continue to run for a second set time and then stops, and the grease gun issues a warning to indicate that the oil filling is completed; Step S4, determines whether the pressure in the pump body reaches the preset pressure value during operation. If so, maintain the pressure stable and maintain it for the first set time. After that, control the pump body to continue running for the second set time and then stop. The grease gun issues a warning to indicate that the oil filling is completed. If not, wait until the oil output reaches the set oil output, control the pump body to stop, and the grease gun issues a warning to indicate that the oil filling is completed.

2. The grease gun pressure oil supply control method according to claim 1, It is characterized in that In step S3, the pressure setting value includes a low pressure setting value and a high pressure setting value, and step S3 specifically includes: Step S31, when the pressure in the pump body reaches the low pressure setting value, determine whether the pressure is stable at the low pressure setting value and maintained for the first setting time. If so, control the pump body to continue running for the second setting time and then stop, and the grease gun issues a warning to indicate that the oil filling is completed; if not, control the pump body to increase the pressure and enter step S32; Step S32, when the pressure in the pump body reaches the high pressure setting value, the pressure is controlled to be stable at the high pressure setting value and maintained for a first setting time, and then the pump body is controlled to continue running for a second setting time and then stop, and the grease gun issues a warning to indicate that the oil injection is completed.

3. The grease gun pressure oil supply control method according to claim 2, Features: The first setting time is 2-10 seconds, and the second setting time is also 2-10 seconds.

4. The grease gun pressure oil supply control method according to claim 1, Features: In steps S3 and S4, when the oil output reaches the set oil output, the pump body is immediately controlled to stop, and the grease gun issues a warning, indicating that the oil filling is completed.

5. The grease gun pressure oil supply control method according to claim 1, Features: The grease gun includes a battery pack, a controller and an alarm. The battery pack is used to supply power to the controller and the alarm. The controller is used to control the battery pack to perform a self-check of the power level, control the operation of the pump body and control the alarm to issue an alarm.

6. The grease gun pressure oil supply control method according to claim 5, Features: The alarm device comprises an illuminating lamp and a buzzer, wherein the illuminating lamp is used for emitting light and flashing, and the buzzer is used for emitting an alarm sound.

7. A grease gun, It is characterized in that include: A pump body, used to pump grease out of the oil storage pipe; A pressure regulating assembly is assembled in the pump body and is used to regulate the pressure in the pump body to control the oil output of the grease gun; the pressure regulating assembly includes a volume regulating knob, and the volume regulating knob can be rotated to switch between a non-quantitative gear and a quantitative gear; The control component includes a controller and an alarm. The controller is used to control the pressure in the pump body to maintain stability and maintain it for a first set time after the pressure in the pump body reaches a set pressure value, and then control the pump body to continue running for a second set time and then stop; the controller is also used to control the alarm to issue an alarm to indicate that the oil injection is completed.

8. The grease gun according to claim 7, Features: The grease gun also includes a battery pack, and the controller is further used to control the battery pack to perform a self-check of the power level, and to control the alarm to issue an alarm when the power level does not meet a preset value.

9. The grease gun according to claim 8, Features: The alarm device comprises an illuminating lamp and a buzzer, wherein the illuminating lamp is used for emitting light and flashing, and the buzzer is used for emitting an alarm sound.

10. The grease gun according to claim 7, Features: The grease gun also includes an oil drain pipe assembly, which is connected to the pump body so that the grease in the oil storage pipe can be discharged through the oil drain pipe assembly.

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