Double-plunger electric grease gun

Abstract

The utility model belongs to the technical field of grease guns, and particularly relates to a double-plunger electric grease gun which comprises a barrel and a gun cover which are detachably connected, a piston is arranged in the barrel, a grease discharge hole is formed in the gun cover, two sets of grease outlet channels and grease inlet holes communicated with the barrel are formed in the gun cover, and push rods are arranged in the grease outlet channels in a sliding mode respectively. The two groups of oil outlet channels are respectively communicated with the oil discharge hole, the oil outlet channels are arranged on the side surface of the oil inlet hole, one side of each oil outlet channel is communicated with the side wall of the oil inlet hole, and the oil outlet channels are arranged at intervals along the length direction of the oil inlet hole; a driving device is arranged on the gun cover, an output shaft is arranged on the driving device, two groups of eccentric parts moving in a staggered manner are arranged on the output shaft, and the two push rods are respectively connected with the two groups of eccentric parts; the output shaft drives the two eccentric parts to move in a staggered mode, so that the two push rods are driven to move in the two oil outlet channels in a staggered mode, oil in the oil storage barrel is driven to be discharged out of the oil outlet holes, and the double-plunger electric grease gun is simple in structure, high in oil outlet speed and convenient to use by a user.

Description

Technical Field

[0001] The utility model belongs to the technical field of grease guns, and particularly relates to a double-plunger electric grease gun. Background Art

[0002] A grease gun is a manual tool for filling lubricating grease into mechanical equipment. It can be equipped with an iron gun rod (iron gun head) or a hose (flat gun head) oil nozzle. It has many advantages such as simple operation, convenient carrying, and wide application range, and is an essential tool for farmers and repair centers.

[0003] In order to improve the oil injection rate of the grease gun, two sets of plunger rods are arranged on some grease guns. For example, a transmission structure of an electric grease gun disclosed in Chinese Utility Model Patent CN 202023010434.X includes a motor, a planetary gear set, and a manifold. A plunger is arranged in the manifold. The planetary gear set is arranged between the motor and the manifold. After being driven by the motor through the planetary gear set, an eccentric wheel rotates, and the eccentric wheel drives the plunger to perform a piston movement in the manifold; two eccentric wheels are connected to the rotating shaft, and the eccentric wheels are connected to corresponding plungers, and the two eccentric wheels move staggeredly.

[0004] According to the specification and the accompanying drawings of the specification, in the above structure, the two manifold channels are connected to the grease bucket through a connecting hole, and the two manifold channels are axially spaced along the connecting hole and pass through the middle of the connecting hole. However, during use, the plunger in the manifold channel close to the grease bucket will affect the entry of grease into the other manifold channel, thereby affecting the oil outlet rate of the other manifold channel. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a double-plunger electric grease gun with a simple structure, a fast oil outlet rate, and convenient for users to use.

[0006] The purpose of the utility model is realized as follows:

[0007] A double-plunger electric grease gun includes a barrel and a gun cap that are detachably connected. A piston is arranged in the barrel, and an oil discharge hole is arranged on the gun cap. Two sets of oil outlet channels and an oil inlet hole communicating with the barrel are arranged on the gun cap. Push rods are slidably arranged in the two sets of oil outlet channels respectively. The two sets of oil outlet channels are respectively communicated with the oil discharge hole. The oil outlet channels are arranged on the side of the oil inlet hole, and one side of the oil outlet channel is communicated with the side wall of the oil inlet hole and is axially spaced along the length direction of the oil inlet hole;

[0008] A driving device is arranged on the gun cap. An output shaft is arranged on the driving device. Two sets of eccentric members that move staggeredly are arranged on the output shaft. The two push rods are respectively connected to the two sets of eccentric members; the output shaft drives the two sets of eccentric members to move staggeredly, thereby driving the two push rods to move staggeredly in the two sets of oil outlet channels and driving the oil in the oil storage barrel to be discharged from the oil discharge hole.

[0009] The present utility model is further configured such that: the two groups of oil outlet channels are respectively arranged on both sides of the oil inlet hole and are respectively communicated with the side wall of the oil inlet hole, and the oil drain hole is arranged between the two groups of oil outlet channels, and both sides of the oil drain hole are respectively communicated with the two groups of oil outlet channels.

[0010] The present utility model is further configured such that: an installation hole is arranged at one end of the oil outlet channel away from the push rod, and a plug is detachably arranged in the installation hole, and the plug located above is arranged obliquely above the plug located below.

[0011] The present utility model is further configured such that: an exhaust hole is arranged on the gun cover, an exhaust valve is installed on the exhaust hole, the exhaust hole is arranged between the two groups of oil outlet channels, and both sides of the exhaust hole are respectively communicated with the two groups of oil outlet channels.

[0012] The present utility model is further configured such that: a connecting seat is detachably arranged on each of the push rods, a driving groove adapted to the eccentric member is arranged on the connecting seat, and the eccentric member can abut against the side wall of the driving groove to drive the connecting seat and the push rod to reciprocate.

[0013] The present utility model is further configured such that: a rotating ball is arranged on one side of the driving groove close to the front end of the oil outlet channel, the rotating ball is rotatably arranged on the connecting seat, the eccentric member can abut against the rotating ball and drive the push rod to move towards the front end of the oil outlet channel, and the rotating ball can rotate relative to the connecting seat to reduce the friction between the eccentric member and the rotating ball.

[0014] The present utility model is further configured such that: the connecting seats on the two push rods are arranged at intervals, a plain bearing is arranged between the connecting seats, and the plain bearing respectively abuts against the connecting seats and supports the upper connecting seat.

[0015] The present utility model is further configured such that: a guiding groove is arranged on the connecting seat, a guiding portion adapted to the guiding groove is arranged on the eccentric member, and a hinge hole is arranged in the plain bearing, the guiding portion is rotatably connected with the hinge hole, and the guiding portions on the two eccentric members respectively pass through the hinge holes on the plain bearing and abut against each other.

[0016] The present utility model is further configured such that: the connecting seats on the two groups of push rods have the same structure, the push rods are arranged on one side of the output shaft, and the two groups of connecting seats are arranged upside down, so that the push rods on the two groups of connecting seats are respectively arranged on both sides of the output shaft and respectively cooperate with the two groups of oil outlet channels.

[0017] The present utility model is further configured as follows: an installation cavity is provided on the gun cover, an end cover is detachably provided at the end of the installation cavity, the end cover extends into the installation cavity to form a positioning convex edge, an eccentric member is rotatably arranged in the installation cavity, a first bearing is provided at the bottom of the installation cavity, a second bearing is provided on the end cover, an output shaft penetrates into the installation cavity, and the output shaft is rotatably connected to the gun cover and the end cover through the first bearing and the second bearing respectively.

[0018] The advantages of the present utility model compared with the prior art are as follows:

[0019] 1. In the present utility model, since the two oil outlet channels are arranged on the side of the oil inlet hole, and one side of the oil outlet channel is communicated with the side wall of the oil inlet hole, the push rod will not affect the flow of the oil in the oil inlet hole during use, or the influence of the push rod on the flow of the oil in the oil inlet hole is relatively small. During use, the oil in the oil inlet hole can be quickly replenished, the oil outlet efficiency is high, the structure is simple, and it is convenient for production and processing; the two eccentric members moving alternately are convenient for alternately driving the oil from the two push rods to be discharged from the oil outlet hole, which is convenient for improving the continuity of the grease gun, improving the oil outlet rate of the grease gun, and can reduce the maximum oil pressure of the grease gun, avoiding excessive oil pressure in the grease gun, and facilitating the user to fill the oil.

[0020] 2. In the present utility model, since the two oil outlet channels are respectively arranged on both sides of the oil inlet hole, the mutual influence of the two oil outlet channels when taking in oil can be reduced, which is convenient for the oil to quickly enter the two oil outlet channels, and is convenient for improving the oil outlet rate of the grease gun; the setting of the installation hole is convenient for the production and processing of the oil outlet channel, and since the plug located above is arranged obliquely above the plug located below, it is beneficial to reduce the width or height of the gun cover, beneficial to reduce the volume of the gun cover, and convenient for production and processing; since the exhaust hole is arranged between the two oil outlet channels, the gas in the two oil outlet channels can be discharged through one exhaust hole during use, which is convenient for the production and processing of the grease gun.

[0021] 3. In the present utility model, the detachable connection between the connection seat and the push rod is convenient for the assembly and production of the grease gun, and the structure of the driving groove is simple, which is convenient for the eccentric member to drive the push rod to reciprocate; since the resistance received by the eccentric wheel when driving the grease gun to discharge oil through the push rod is relatively large, resulting in a relatively large friction force between the eccentric wheel and the connection seat at this time, the setting of the rotating ball is beneficial to reducing the friction received by the eccentric wheel when the eccentric wheel drives the grease gun to discharge oil through the push rod, beneficial to reducing the wear of the eccentric wheel and the connection seat, and beneficial to extending the service life of the grease gun.

[0022] 4. The provision of the plain bearing in the present utility model can support the connecting seat and reduce the friction suffered by the connecting seat during use, which is beneficial to increasing the movement speed of the push rod and extending the service life of the connecting seat; the provision of the guide groove and the guiding part facilitates the stable sliding of the push rod, avoids the skew of the connecting seat and the push rod during use, and avoids the excessive friction of the push rod caused thereby, which is beneficial to extending the service life of the grease gun; the two groups of connecting seats with the same structure can reduce the types of parts of the grease gun, thereby reducing the production cost and facilitating the assembly and production of the grease gun.

[0023] 5. The provision of the positioning convex edge in the present utility model facilitates the quick positioning connection of the gun cover and the end cover, and is beneficial to improving the connection strength between the gun cover and the end cover, avoiding the skew of the end cover due to excessive force, and the provision of the first bearing and the second bearing is beneficial to the stable installation of the output shaft, avoiding the bending of the output shaft, which is beneficial to extending the service life of the grease gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a sectional view of the present utility model;

[0026] Figure 3 is a schematic installation structure diagram of the eccentric part, the connecting seat and the push rod on the gun cover of the present utility model;

[0027] Figure 4 is one of the schematic structural diagrams of the gun cover of the present utility model;

[0028] Figure 5 is the other schematic structural diagram of the gun cover of the present utility model;

[0029] Figure 6 is one of the sectional views of the gun cover of the present utility model;

[0030] Figure 7 is the other sectional view of the gun cover of the present utility model;

[0031] Figure 8 is an exploded schematic diagram of the connection structure of the driving device, the eccentric part, the connecting seat and the push rod of the present utility model;

[0032] Figure 9 is a sectional view of the connection structure of the eccentric part and the connecting seat with the output shaft of the present utility model;

[0033] Figure 10 is a schematic structural diagram of the eccentric part of the present utility model;

[0034] Figure 11 is a schematic structural diagram of the connecting seat of the present utility model;

[0035] Figure 12 This is a schematic structural view of the end cover in the utility model.

[0036] The meanings of the reference numerals in the figure: 1 - gun cover; 11 - installation cavity; 12 - oil inlet hole; 13 - oil outlet channel; 14 - oil drain hole; 15 - exhaust hole; 16 - fixing cavity; 17 - first groove; 131 - installation hole; 2 - barrel; 3 - outer shell; 4 - driving device; 41 - motor; 42 - planetary gear set; 43 - output shaft; 431 - driving part; 5 - eccentric part; 51 - guiding part; 52 - driving hole; 6 - connecting seat; 61 - driving groove; 62 - guiding groove; 63 - T-shaped groove; 64 - hinged groove; 65 - rotating ball; 7 - push rod; 71 - plain bearing; 72 - hinged hole; 73 - first bearing; 74 - second bearing; 8 - end cover; 81 - positioning convex edge; 82 - second groove; 9 - oil outlet nozzle; 91 - exhaust valve; 92 - plug. Specific embodiments

[0037] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0038] See Figures 1 to 12 As shown, a double-plunger electric grease gun includes a detachably connected barrel 2 and a gun cover 1. A piston is arranged in the barrel 2, and an oil drain hole 14 is arranged on the gun cover 1. An oil outlet nozzle 9 is detachably arranged at the end of the oil drain hole 14. Two groups of oil outlet channels 13 are arranged on the gun cover 1 and an oil inlet hole 12 communicating with the barrel 2. Push rods 7 are slidably arranged in the two groups of oil outlet channels 13 respectively. The two groups of oil outlet channels 13 are respectively communicated with the oil drain hole 14. The oil outlet channels 13 are arranged on the side of the oil inlet hole 12, and one side of the oil outlet channel 13 is communicated with the side wall of the oil inlet hole 12 and is arranged at intervals along the length direction of the oil inlet hole 12. A driving device 4 is arranged on the gun cover 1. An output shaft 43 is arranged on the driving device 4. Two groups of eccentric parts 5 moving alternately are arranged on the output shaft 43. The two push rods 7 are respectively connected with the two groups of eccentric parts 5. The output shaft 43 drives the two groups of eccentric parts 5 to move alternately, thereby driving the two push rods 7 to move alternately in the two groups of oil outlet channels 13 and driving the oil in the oil storage barrel to be discharged from the oil drain hole.

[0039] In the above structure, since the two groups of oil outlet channels 13 are arranged on the side of the oil inlet hole 12 and one side of the oil outlet channel 13 is communicated with the side wall of the oil inlet hole 12, during the use process, the push rod 7 will not affect the flow of the oil in the oil inlet hole 12, or the influence of the push rod 7 on the flow of the oil in the oil inlet hole 12 is relatively small. During the use process, the oil in the oil inlet hole 12 can be quickly replenished, the oil outlet efficiency is high, the structure is simple, and it is convenient for production and processing. The two groups of eccentric parts 5 moving alternately facilitate the two push rods 7 to alternately drive the oil to be discharged from the oil drain hole, which is convenient for improving the continuity of the grease gun, improving the oil outlet rate of the grease gun, and can reduce the maximum oil pressure of the grease gun, avoiding excessive oil pressure in the grease gun and facilitating the user to fill the oil.

[0040] The two sets of oil outlet channels 13 are respectively arranged on both sides of the oil inlet hole 12 and are respectively communicated with the side wall of the oil inlet hole 12, and the oil drain hole 14 is arranged between the two sets of oil outlet channels 13. Both sides of the oil drain hole 14 are respectively communicated with the two sets of oil outlet channels 13. This structure can reduce the mutual influence when the two sets of oil outlet channels 13 intake oil, facilitate the rapid entry of oil into the two sets of oil outlet channels 13, and facilitate the improvement of the oil outlet rate of the grease gun.

[0041] In this embodiment, an exhaust hole 15 is provided on the gun cap 1, and an exhaust valve 91 is installed on the exhaust hole 15. The exhaust hole 15 is arranged between the two sets of oil outlet channels 13, and both sides of the exhaust hole 15 are respectively communicated with the two sets of oil outlet channels 13. Since the exhaust hole 15 is arranged between the two sets of oil outlet channels 13, the gas in the two sets of oil outlet channels 13 can be exhausted through one exhaust hole 15 during use, which is convenient for the production and processing of the grease gun.

[0042] An installation hole 131 is provided at one end of the oil outlet channel 13 far away from the push rod 7, and a plug 92 is detachably arranged in the installation hole 131. The plug 92 located above is arranged obliquely above the plug 92 located below. The arrangement of the installation hole 131 facilitates the production and processing of the oil outlet channel 13, and since the plug 92 located above is arranged obliquely above the plug 92 located below, it is beneficial to reduce the width or height of the gun cap 1, beneficial to reduce the volume of the gun cap 1, and convenient for production and processing.

[0043] In the present utility model, an installation cavity 11 is provided on the gun cap 1, and an end cap 8 is detachably arranged at the end of the installation cavity 11. The end cap 8 extends into the installation cavity 11 to form a positioning convex edge 81. The eccentric member 5 is rotatably arranged in the installation cavity 11. The two sets of oil outlet channels 13 are both arranged on the side wall of the installation cavity 11. A first bearing 73 is arranged at the bottom of the installation cavity 11, and a second bearing 74 is arranged on the end cap 8. The output shaft 43 penetrates into the installation cavity 11, and the output shaft 43 is respectively rotatably connected to the gun cap 1 and the end cap 8 through the first bearing 73 and the second bearing 74. The arrangement of the positioning convex edge 81 facilitates the quick positioning connection between the gun cap 1 and the end cap 8, and is beneficial to improving the connection strength between the gun cap 1 and the end cap 8, avoiding the skew of the end cap 8 due to excessive force. The arrangements of the first bearing 73 and the second bearing 74 are beneficial to the stable installation of the output shaft 43, avoiding the bending of the output shaft 43, and beneficial to extending the service life of the grease gun.

[0044] In this embodiment, a second groove 82 for installing the second bearing 74 is provided on the end cap 8, and a first groove 17 for installing the first bearing 73 is provided at the bottom of the installation cavity 11.

[0045] A connecting seat 6 is detachably arranged on each push rod 7. A driving groove 61 adapted to the eccentric member 5 is arranged on the connecting seat 6. The eccentric member 5 can abut against the side wall of the driving groove 61 to drive the connecting seat 6 and the push rod 7 to reciprocate. The detachably connected connecting seat 6 and push rod 7 facilitate the assembly and production of the grease gun. The structure of the driving groove 61 is simple, which is convenient for the eccentric member 5 to drive the push rod 7 to reciprocate. In this embodiment, a T-shaped groove 63 is arranged on the connecting seat 6, and a connecting portion adapted to the T-shaped groove 63 is arranged at one end of the push rod 7.

[0046] Since the resistance received by the eccentric wheel when driving the grease gun to discharge oil through the push rod 7 is relatively large, the friction between the eccentric wheel and the connecting seat 6 is relatively large at this time. The present invention preferably arranges a rotating ball 65 on one side of the driving groove 61 close to the front end of the oil outlet passage 13. The rotating ball 65 is rotatably arranged on the connecting seat 6. The eccentric member 5 can abut against the rotating ball 65 and drive the push rod 7 to move towards the front end of the oil outlet passage 13. And the rotating ball 65 can rotate relative to the connecting seat 6 to reduce the friction between the eccentric member 5 and the rotating ball 65. The arrangement of the rotating ball 65 is beneficial to reducing the friction suffered by the eccentric wheel when the eccentric wheel drives the grease gun to discharge oil through the push rod 7, is beneficial to reducing the wear of the eccentric wheel and the connecting seat 6, and is beneficial to extending the service life of the grease gun. In this embodiment, a rotating groove 64 is arranged on one side of the driving groove 61 close to the front end of the oil outlet passage 13, and the rotating ball 65 is rotatably arranged in the rotating groove 64.

[0047] The connecting seats 6 on the two push rods 7 are arranged at intervals. A plain bearing 71 is arranged between the connecting seats 6. The plain bearing 71 abuts against the connecting seats 6 respectively and supports the upper connecting seat 6. The arrangement of the plain bearing 71 can support the connecting seat 6 and reduce the friction suffered by the connecting seat 6 during use, which is beneficial to increasing the movement speed of the push rod 7 and extending the service life of the connecting seat 6.

[0048] In the present invention, a guiding groove 62 is arranged on the connecting seat 6, a guiding portion 51 adapted to the guiding groove 62 is arranged on the eccentric member 5, and a hinge hole 72 is arranged in the plain bearing 71. The guiding portion 51 is rotatably connected to the hinge hole 72. The guiding portions 51 on the two eccentric members 5 respectively pass through the hinge holes 72 on the plain bearing 71 and abut against each other. The arrangement of the guiding groove 62 and the guiding portion 51 facilitates the stable sliding of the push rod 7, avoids the deflection of the connecting seat 6 and the push rod 7 during use, avoids the excessive friction of the push rod 7 caused thereby, and is beneficial to extending the service life of the grease gun.

[0049] Preferably, the connecting seats 6 on the two groups of push rods 7 have the same structure. The push rods 7 are arranged on one side of the output shaft 43, and the two groups of connecting seats 6 are arranged upside down, so that the push rods 7 on the two groups of connecting seats 6 are respectively arranged on both sides of the output shaft 43 and respectively cooperate with the two oil outlet channels 13. The two connecting seats 6 with the same structure can reduce the types of parts of the grease gun, thereby reducing the production cost and facilitating the assembly and production of the grease gun.

[0050] A housing 3 is detachably arranged on the gun cap 1, and a driving device 4 is arranged in the housing 3. The driving device 4 includes a motor 41. The output end of the motor 41 is connected with a planetary gear set 42. The output shaft 43 is connected to the output end of the planetary gear set 42, and a special-shaped driving part 431 is arranged on the output shaft 43. A driving hole 52 adapted to the driving part 431 is arranged on the eccentric part 5. The driving block 52 penetrates through the guiding part 51. A fixing cavity 16 is arranged at the lower end of the gun cap 1. A first groove 17 communicates the fixing cavity 16 with the installation cavity. The planetary gear set 42 is fixedly arranged in the fixing cavity 16.

[0051] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A double-plunger electric grease gun, comprising a barrel (2) and a gun cap (1) detachably connected, a piston is arranged in the barrel (2), and an oil discharge hole (14) is arranged on the gun cap (1), and it is characterized in that: Two oil outlet channels (13) and an oil inlet hole (12) communicating with the cylinder body (2) are arranged on the gun cover (1). Push rods (7) are slidably arranged in the two oil outlet channels (13) respectively. The two oil outlet channels (13) communicate with oil discharge holes (14) respectively. The oil outlet channels (13) are arranged on the side of the oil inlet hole (12), and one side of the oil outlet channel (13) communicates with the side wall of the oil inlet hole (12) and is arranged at intervals along the length direction of the oil inlet hole (12). A driving device (4) is arranged on the gun cover (1). An output shaft (43) is arranged on the driving device (4). Two eccentric parts (5) moving in a staggered manner are arranged on the output shaft (43). The two push rods (7) are respectively connected with the two eccentric parts (5). The output shaft (43) drives the two eccentric parts (5) to move in a staggered manner, thereby driving the two push rods (7) to move in a staggered manner in the two oil outlet channels (13) and driving the oil in the oil storage cylinder to be discharged from the oil discharge holes.

2. The double-plunger electric grease gun according to claim 1, characterized in that: The two oil outlet channels (13) are respectively arranged on both sides of the oil inlet hole (12) and respectively communicate with the side wall of the oil inlet hole (12). The oil discharge holes (14) are arranged between the two oil outlet channels (13), and both sides of the oil discharge holes (14) communicate with the two oil outlet channels (13) respectively.

3. The double-plunger electric grease gun according to claim 2, wherein: An installation hole (131) is arranged at one end of the oil outlet channel (13) far away from the push rod (7). A plug (92) is detachably arranged in the installation hole (131). The plug (92) located above is arranged obliquely above the plug (92) located below.

4. The double-plunger electric grease gun according to claim 1, characterized in that: An exhaust hole (15) is arranged on the gun cover (1). An exhaust valve (91) is installed on the exhaust hole (15). The exhaust hole (15) is arranged between the two oil outlet channels (13), and both sides of the exhaust hole (15) communicate with the two oil outlet channels (13) respectively.

5. A double-plunger electric grease gun according to claim 1, wherein: A connecting seat (6) is detachably arranged on each of the push rods (7). A driving groove (61) adapted to the eccentric part (5) is arranged on the connecting seat (6). The eccentric part (5) can abut against the side wall of the driving groove (61) to drive the connecting seat (6) and the push rod (7) to move reciprocally.

6. The double-plunger electric grease gun according to claim 5, characterized in that: A rotating ball (65) is arranged on one side of the driving groove (61) close to the front end of the oil outlet channel (13). The rotating ball (65) is rotatably arranged on the connecting seat (6). The eccentric part (5) can abut against the rotating ball (65) and drive the push rod (7) to move towards the front end of the oil outlet channel (13), and the rotating ball (65) can rotate relative to the connecting seat (6) to reduce the friction between the eccentric part (5) and the rotating ball (65).

7. The double plunger electric grease gun according to claim 5, wherein: The connecting seats (6) on the two push rods (7) are arranged at intervals. A plain bearing (71) is arranged between the connecting seats (6). The plain bearing (71) abuts against the connecting seats (6) respectively and supports the upper connecting seat (6).

8. The double plunger electric grease gun according to claim 7, characterized in that: The connecting seat (6) is provided with a guiding groove (62), the eccentric member (5) is provided with a guiding portion (51) adapted to the guiding groove (62), and the plain bearing (71) is provided with a hinge hole (72). The guiding portion (51) is rotatably connected to the hinge hole (72). The guiding portions (51) on the two eccentric members (5) are respectively inserted into the hinge holes (72) on the plain bearing (71) and abut against each other.

9. The double plunger electric grease gun according to claim 5, characterized in that: The connecting seats (6) on the two sets of push rods (7) have the same structure. The push rods (7) are arranged on one side of the output shaft (43), and the two sets of connecting seats (6) are arranged upside down, so that the push rods (7) on the two sets of connecting seats (6) are respectively arranged on both sides of the output shaft (43) and respectively cooperate with the two oil outlet channels (13).

10. A double-plunger electric grease gun according to claim 1, characterized in that: The gun cover (1) is provided with an installation cavity (11). An end cover (8) is detachably arranged at the end of the installation cavity (11). The end cover (8) extends into the installation cavity (11) to form a positioning convex edge (81). The eccentric member (5) is rotatably arranged in the installation cavity (11). A first bearing (73) is arranged at the bottom of the installation cavity (11), and a second bearing (74) is arranged on the end cover (8). The output shaft (43) penetrates into the installation cavity (11), and the output shaft (43) is rotatably connected to the gun cover (1) and the end cover (8) through the first bearing (73) and the second bearing (74) respectively.

Images