Grease gun

Abstract

The grease gun comprises a gun body and a grease pressing mechanism, and a containing cavity used for containing grease is formed in the gun body; the grease pressing mechanism comprises a grease pressing head fixed to one end of the cavity and a pressing rod connected to the grease pressing head, a grease inlet of the grease pressing head communicates with the containing cavity, and the pressing rod is used for pressing grease in the containing cavity out of the grease inlet to a grease outlet of the grease pressing opening. Wherein the gun body is provided with a first heating piece, the pressing rod is provided with a battery and a switch, the battery is electrically connected with the switch and the first heating piece, and the first heating piece is used for heating butter in the containing cavity. By arranging the first heating piece on the gun body, grease in the containing cavity can be heated, so that new grease can be heated to the temperature equal to that of old grease to be replaced in the motor bearing in the heating cavity, and the risks of shutdown and bearing damage caused by temperature rise over-limit of the motor bearing are reduced. Meanwhile, the switch and the battery are arranged on the pressing rod, so that the grease gun can be used at any position and is not influenced by the length of the power line.

Description

Technical Field

[0001] The present disclosure relates to a grease filling tool, in particular to a grease gun. Background Art

[0002] In modern industrial production, the continuous operation of electric motors is required to be high. Once the operation is interrupted due to poor lubrication of the motor bearing, the output of the system will decrease, and the production efficiency will be reduced. In severe cases, the whole system will trip, and even cause major production safety accidents. Except for rotating machinery with a lubricating oil system, electric motors usually use grease to lubricate the bearings. During daily regular maintenance, it is necessary to keep the equipment in operation and use a grease gun to add new grease to the motor and discharge the old grease. Due to the inconsistency in fluidity between the newly added grease and the old grease in the bearing, the heat generated in the bearing cannot be discharged in time, and the low temperature of the new grease will cause the bearing metal to shrink when it is cold, aggravate the bearing wear and produce metal debris, and further increase the heat generation in the bearing. Therefore, after the motor is greased, the bearing temperature usually rises rapidly and significantly. In severe cases, it may trigger the motor bearing temperature-related protection to cause the motor to trip, or the bearing temperature rise exceeds the limit and is forced to shut down or even damage the bearing. The high bearing temperature caused by the new grease usually takes 2 days or even 7 days to return to normal, which seriously endangers the safety of the motor during operation. Utility Model Content

[0003] The purpose of the present invention is to provide a grease gun, which can heat new grease to the bearing metal temperature in advance, so that the new grease has the same fluidity as the old grease, and solves the technical problem of excessive bearing temperature increase after oil change.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a grease gun, comprising a gun body and an oil pressing mechanism, wherein a accommodating chamber for accommodating grease is formed inside the gun body; the oil pressing mechanism comprises an oil pressing head fixed to one end of the gun body and a pressing rod connected to the oil pressing head, the oil inlet of the oil pressing head is communicated with the accommodating chamber, and the pressing rod is used to press the butter in the accommodating chamber from the oil inlet to the oil outlet of the oil pressing head; wherein the gun body is provided with a first heating element, and the pressing rod is provided with a battery and a switch, the battery is electrically connected to the switch and the first heating element, and the first heating element is used to heat the butter in the accommodating chamber.

[0005] Optionally, a first heat-insulating sleeve is provided on the outer side of the gun body, and the first heating element is arranged between the gun body and the first heat-insulating sleeve.

[0006] Optionally, the first heating element comprises a heating wire, and the heating wire is spirally wound around the outer surface of the gun body.

[0007] Optionally, a battery cavity is provided inside the pressure rod, and the battery is arranged in the battery cavity.

[0008] Optionally, one end of the battery cavity away from the oil press head passes through the pressure rod to form an opening, and a battery cover for sealing the opening is detachably connected to the pressure rod.

[0009] Optionally, the switch is a temperature-controlled knob switch, the gun body is provided with a temperature sensor for detecting the heating temperature of the first heating element, and the pressure rod is provided with a temperature display screen for displaying the temperature obtained by the temperature sensor.

[0010] Optionally, a first wire hole is opened on the side of the pressure rod facing the gun body, and the first wire hole is connected to the battery cavity. A second wire hole is opened on the side of the first heat insulation sleeve facing the pressure rod, and the connection terminal of the first heating element is located at the second wire hole. The battery, switch and the first heating element are connected by a wire, and the wire is passed through the first wire hole and the second wire hole.

[0011] Optionally, the grease gun further comprises a nozzle, which is connected to the oil press head and communicates with the oil outlet, and the nozzle is provided with a second heating element for heating the grease, and the second heating element is electrically connected to both the battery and the switch.

[0012] Optionally, a second heat-insulating sleeve is provided on the outer side of the gun nozzle, and the second heating element is arranged between the gun nozzle and the second heat-insulating sleeve.

[0013] Optionally, the second heating element is connected in series with the first heating element.

[0014] Through the above technical solution, the control switch is turned on so that the battery of the pressure rod of the grease gun can power the first heating element, so that the grease gun has the function of preheating the new butter (unused butter) in the accommodating chamber, so that the new butter can be heated in the heating chamber to the same temperature as the old butter (used butter) to be replaced in the motor bearing, so that the fluidity and thermal conductivity of the new butter are roughly consistent with the fluidity and thermal conductivity of the old butter. Therefore, after the grease of the motor bearing is replaced, the new grease will not cause the motor bearing to shrink when it is cold, reducing the risk of shutdown caused by excessive temperature rise of the motor bearing and bearing damage. In addition, since the switch and battery are set on the pressure rod, the grease gun can be used in any position and is not affected by the length of the power cord.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of a three-dimensional structure of a grease gun provided by an exemplary embodiment of the present disclosure;

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of a pressure rod, a gun body and a gun nozzle of a grease gun provided in an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a schematic diagram of the arrangement structure of a first heating element and a second heating element on a grease gun provided by an exemplary embodiment of the present disclosure;

[0020] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0021] Description of Reference Numerals

[0022] 100-gun body; 110-accommodating chamber; 120-end cover; 200-oil pressing mechanism; 210-oil pressing head; 220-pressing rod; 221-battery chamber; 222-battery cover; 223-first line hole; 300-gun nozzle; 400-oil pushing mechanism; 410-oil pushing plug; 420-push rod; 430-elastic member;

[0023] 10-battery; 20-switch; 30-first heating element; 40-first heat-insulating sleeve; 41-second wire hole; 50-second heating element; 60-second heat-insulating sleeve; 70-temperature display screen; 80-temperature sensor; DETAILED DESCRIPTION

[0024] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0025] In the description of the present disclosure, it is to be understood that the terms "inside" and "outside" refer to the inside and outside of the corresponding structural contour. In addition, the terms "first", "second", etc. are only used to distinguish one element from another element, and have no order or importance.

[0026] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0027] In order to solve the technical problem in the prior art that the bearing temperature exceeds the limit after new grease is added into the motor bearing, the present disclosure provides a grease gun to solve the technical problem.

[0028] like Figures 1 to 4 As shown, the grease gun provided by the present invention includes a gun body 100 and an oil pressing mechanism 200, wherein a receiving chamber 110 for receiving grease is formed inside the gun body 100; the oil pressing mechanism 200 includes an oil pressing head 210 fixed to one end of the gun body 100 and a pressing rod 220 connected to the oil pressing head 210, wherein the oil inlet of the oil pressing head 210 is connected to the receiving chamber 110, and the pressing rod 220 is used to press the grease in the receiving chamber 110 from the oil inlet to the oil outlet of the oil pressing head 210; wherein the gun body 100 is provided with a first heating element 30, and the pressing rod 220 is provided with a battery 10 and a switch 20, the battery 10 is electrically connected to the switch 20 and the first heating element 30, and the first heating element 30 is used to heat the grease in the receiving chamber 110.

[0029] Through the above technical solution, the control switch 20 is turned on, so that the battery 10 set on the pressure rod 220 of the grease gun can supply power to the first heating element 30, so that the grease gun has the function of preheating the new butter (unused butter) in the accommodating chamber 110, so that the new butter can be heated in the heating chamber to the same temperature as the old butter (used butter) to be replaced in the motor bearing, so that the fluidity and thermal conductivity of the new butter are roughly consistent with the fluidity and thermal conductivity of the old butter. Therefore, after the grease of the motor bearing is replaced, the magnitude of the cold contraction of the motor bearing caused by the new grease is reduced, reducing the risk of shutdown caused by excessive temperature rise of the motor bearing and bearing damage. In addition, since the switch 20 and the battery 10 are set on the pressure rod 220, the grease gun can be used in any position without being affected by the length of the power cord.

[0030] It should be noted that the battery 10 here can be a dry cell or a storage battery. In this embodiment, the battery 10 is a storage battery, and the storage battery is recycled by charging the storage battery, and there is no need to disassemble and replace the battery 10. The first heating element 30 can be a heating wire, which heats the new butter in the accommodating cavity 110 after the heating wire is heated. The first heating element 30 can also be an electromagnetic wave generator, which uses electromagnetic waves to act on the new butter and heat the new butter.

[0031] In some optional embodiments, the outer side of the gun body 100 is provided with a first heat-insulating sleeve 40, and the first heating element 30 is arranged between the gun body 100 and the first heat-insulating sleeve 40. The first heat-insulating sleeve 40 can, on the one hand, keep the heating element and the gun body 100 warm, and reduce the influence of the ambient temperature on the heating temperature of the first heating element 30; on the other hand, it can play a heat-insulating role, and can isolate the temperature generated by the first heating element 30. The operator can directly hold the first heat-insulating element to prevent the operator from being burned. In addition, since the first heating element 30 is arranged between the gun body 100 and the first heat-insulating sleeve 40, that is, the first heating element 30 is located on the outside of the gun body 100, the existing grease gun can be directly used for modification, and the first heating element 30 and the first heat-insulating element are arranged on the outside of the gun body 100 of the existing grease gun, thereby reducing the manufacturing cost. The first heat-insulating sleeve 40 is fixed to the gun body 100 in a manner including but not limited to adhesive fixation, welding fixation, and bolt connection fixation.

[0032] Of course, in other embodiments, the first heating element 30 may be disposed between the inner wall and the outer wall of the gun body 100 during the manufacturing process of the gun body 100 , and the inner wall of the gun body 100 is the cavity wall of the accommodating cavity 110 .

[0033] In some optional embodiments, the first heating element 30 includes a heating wire, which is spirally wound on the outer surface of the gun body 100. The heating temperature of the heating wire is affected by the current and the resistance of the heating wire. By using the heating wire as the first heating element 30, it is easier to control the heating temperature of the heating wire after heating, thereby controlling the temperature of the new butter after heating. In addition, the heating wire is spirally wound on the outer surface of the gun body 100, so that the temperature of the butter at different positions in the accommodating cavity 110 of the gun body 100 can be roughly consistent.

[0034] In some optional embodiments, a battery cavity 221 is provided inside the pressure rod 220, and the battery 10 is provided in the battery cavity 221. Thus, the battery 10 is provided in the pressure rod 220 without affecting the operator's comfort in holding the pressure rod 220, while improving the aesthetics of the grease gun.

[0035] Of course, in other implementations, the battery 10 may also be directly fixed on the surface of the pressure rod 220 .

[0036] In some optional embodiments, the end of the battery cavity 221 away from the oil press head 210 passes through the pressure rod 220 to form an opening, and a battery cover 222 for covering the opening is detachably connected to the pressure rod 220. The pressure rod 220 is enclosed in the battery cavity 221 by the battery cover 222, and when the battery 10 needs to be replaced, the battery 10 can be replaced by opening the battery cover 222.

[0037] In some optional embodiments, the switch 20 is a temperature control knob switch 20, the gun body 100 is provided with a temperature sensor 80 for detecting the heating temperature of the first heating element 30, and the pressure rod 220 is provided with a temperature display screen 70 for displaying the temperature obtained by the temperature sensor 80. The heating temperature of the first heating element 30 is obtained in real time by the temperature sensor 80 and displayed on the temperature display screen 70, and the operator can adjust the heating temperature of the first heating element 30 by rotating the knob, and accurately control the adjusted temperature by observing the temperature display screen 70, so that the new butter can be heated to the desired suitable temperature.

[0038] It should be noted that, since different motors have different parameters, the temperature in their bearings is also different. Therefore, the setting of the library knob switch 20 can make the new butter be heated to the same temperature as the old butter, so as to further reduce the technical problem of excessive temperature rise of the bearing. When the first heating element 30 is a heating wire, the current flowing through the first heating element 30 is adjusted by the temperature control knob switch 20, so that the first heating element 30 obtains different heating temperatures.

[0039] In some optional embodiments, a first wire hole 223 is opened on the side of the pressure rod 220 facing the gun body 100, and the first wire hole 223 is connected to the battery cavity 221. A second wire hole 41 is opened on the side of the first insulation sleeve 40 facing the pressure rod 220. The connection terminal of the first heating element 30 is located at the second wire hole 41. The battery 10, the switch 20 and the first heating element 30 are connected by a wire, and the wire is passed through the first wire hole 223 and the second wire hole 41.

[0040] The first wire hole 223 and the second wire hole 41 are provided to enable the wire to pass through and to limit the wire, so that the wiring is more neat. When the first heating element 30 is a heating wire, both ends of the heating wire can be the connection terminals of the first heating element 30, and after the heating wire is spirally wound on the outer surface of the gun body, both ends of the heating wire can be connected to the wire respectively, and the wire passes through the second wire hole 41.

[0041] In some optional embodiments, the grease gun also includes a nozzle 300, which is connected to the oil press head 210 and communicates with the oil outlet. The nozzle 300 is provided with a second heating element 50 for heating the butter, and the second heating element 50 is electrically connected to both the battery 10 and the switch 20.

[0042] The second heating element 50 is arranged at the gun nozzle 300 to keep the butter flowing through the gun nozzle 300 warm, thereby preventing the butter from dropping in temperature significantly during the journey from the oil outlet of the oil press head 210 through the gun nozzle 300 to the oil filling hole of the motor.

[0043] In some optional embodiments, the outer side of the gun nozzle 300 is provided with a second heat-insulating sleeve 60, and the second heating element 50 is provided between the gun nozzle 300 and the second heat-insulating sleeve 60. The second heat-insulating sleeve 60 can keep the new butter flowing through the gun nozzle 300 warm, and can also avoid the risk of burns to the operator when holding the gun nozzle 300 to connect the oil filling port.

[0044] In some optional embodiments, the second heating element 50 is connected in series with the first heating element 30. This arrangement enables the first heating element 30 and the second heating element 50 to be uniformly controlled by the switch 20 and to be started and shut down at the same time. When the switch 20 is a temperature control knob switch 20, the temperatures of the first heating element 30 and the second heating element 50 can also be adjusted simultaneously by the temperature control knob switch 20.

[0045] It should be noted that when the first heating element 30 and the second heating element 50 are both heating wires, the resistances of the first heating element 30 and the second heating element 50 can be set to be the same, so that when the first heating element 30 and the second heating element 50 are connected in series, the heating temperature of the first heating element 30 can be kept consistent with the heating temperature of the second heating element 50, so as to facilitate the operator to perform temperature control.

[0046] In some optional embodiments, an oil pushing mechanism 400 is further provided at one end of the gun body 100 away from the oil pressing head 210 , and the oil pushing mechanism 400 is used to provide thrust to the lubricating oil in the accommodating chamber 110 so that the lubricating oil can flow toward the direction of the oil pressing head 210 .

[0047] Optionally, the accommodating chamber 110 passes through the end of the gun body 100 away from the oil pressure head 210 to form a refueling port, and the refueling port is spirally connected to the end cover 120 to seal the refueling port. The oil pushing mechanism 400 includes an oil pushing plug 410, an oil pushing rod, and an elastic member 430. The oil pushing plug 410 is arranged in the accommodating chamber 110 and is slidably and sealedly connected to the cavity wall of the accommodating chamber 110. The oil pushing rod is fixed on the oil pushing plug 410 and extends through the end cover 120 to the outside of the gun body 100 for the operator to apply force. The elastic member 430 is connected between the oil pushing plug 410 and the end cover 120. The elastic member 430 can drive the oil pushing plug 410 to move in the direction of the oil withdrawal head through elastic force.

[0048] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0050] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A grease gun, characterized in that: include: The gun body has a receiving cavity formed inside for receiving butter; The oil pressing mechanism comprises an oil pressing head fixed to one end of the gun body and a pressing rod connected to the oil pressing head, the oil inlet of the oil pressing head is communicated with the accommodating chamber, and the pressing rod is used to press the butter in the accommodating chamber from the oil inlet to the oil outlet of the oil pressing head; Wherein, the gun body is provided with a first heating element, the pressure rod is provided with a battery and a switch, the battery is electrically connected to the switch and the first heating element, and the first heating element is used to heat the butter in the accommodating cavity.

2. The grease gun according to claim 1, characterized in that: The outer side of the gun body is covered with a first heat-insulating sleeve, and the first heating element is arranged between the gun body and the first heat-insulating sleeve.

3. The grease gun according to claim 2, characterized in that: The first heating element comprises a heating wire, and the heating wire is spirally wound on the outer surface of the gun body.

4. The grease gun according to claim 2, characterized in that: A battery cavity is arranged inside the pressure rod, and the battery is arranged in the battery cavity.

5. The grease gun according to claim 4, characterized in that: One end of the battery cavity away from the oil press head passes through the pressure rod to form an opening, and a battery cover for sealing the opening is detachably connected to the pressure rod.

6. The grease gun according to claim 1, characterized in that: The switch is a temperature control knob switch, the gun body is provided with a temperature sensor for detecting the heating temperature of the first heating element, and the pressure rod is provided with a temperature display screen for displaying the temperature obtained by the temperature sensor.

7. The grease gun according to claim 4, characterized in that: A first wire hole is formed on the side of the pressure rod facing the gun body, and the first wire hole is connected to the battery cavity. A second wire hole is formed on the side of the first heat insulation sleeve facing the pressure rod, and the connection terminal of the first heating element is located at the second wire hole. The battery, the switch and the first heating element are connected by wires, and the wires are passed through the first wire hole and the second wire hole.

8. The grease gun according to any one of claims 1 to 7, characterized in that: The grease gun also includes a nozzle, which is connected to the oil press head and communicated with the oil outlet. The nozzle is provided with a second heating element for heating the grease, and the second heating element is electrically connected to both the battery and the switch.

9. The grease gun according to claim 8, characterized in that: The outer side of the gun nozzle is covered with a second heat-insulating sleeve, and the second heating element is arranged between the gun nozzle and the second heat-insulating sleeve.

10. The grease gun according to claim 8, characterized in that: The second heating element is connected in series with the first heating element.

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