Grease gun

Abstract

The utility model discloses a grease gun and aims to solve the problem that a plug of a grease gun in the prior art is easy to lose. The technical problem is solved through the following technical scheme that the oil cylinder comprises a cylinder body assembly, wherein the cylinder body assembly comprises a cylinder body, an oil outlet pipe and a connecting rod piece; the end, away from the barrel body, of the connecting rod piece is rotationally connected with a handle. And the plug is detachably arranged on the cylinder body assembly. The plug is connected to the barrel assembly in a threaded mode, when the plug is not used, the plug can be fixed to the barrel assembly in a threaded mode, and when the plug needs to be used, the plug can be fixed to the barrel assembly in a threaded mode. Due to the fact that the plug is fixed on the barrel assembly in a threaded mode, the plug does not fall off from the barrel assembly in the using process.

Description

Technical Field

[0001] This utility model relates to the field of oiling equipment technology, and more specifically, to a grease gun. Background Technology

[0002] A grease gun is a lubricant delivery device that delivers grease by squeezing it from a cylinder. It typically has a long, thin outlet tube. During use, due to the increased pressure required and the viscous nature of grease, a significant residual pressure often remains inside the grease gun after dispensing, causing grease to continue flowing slowly from the outlet tube. A plug is needed to seal this residual pressure, preventing grease waste and environmental pollution. However, in existing grease guns, the plug is easily lost during use. Utility Model Content

[0003] This invention overcomes the problem of easy loss of the plug in the existing grease gun, and provides a grease gun that allows the plug to be placed on the grease gun during use, and the plug to be removed from the grease gun after use to seal the outlet of the oil pipe.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a grease gun, comprising:

[0005] The cylinder assembly includes a cylinder body, an oil outlet pipe, and a connecting rod; the oil outlet pipe is connected to the cylinder body, and a handle is rotatably connected to the end of the connecting rod away from the cylinder body.

[0006] The plug is detachably mounted on the cylinder assembly.

[0007] The plug of this utility model is connected to the cylinder assembly by a thread. When the plug is not in use, it can be fixed to the cylinder assembly by the thread. When the plug is needed, it can be fixed to the cylinder assembly by the thread. Since the plug is fixed to the cylinder assembly by the thread, there is no need to worry about the plug falling off the cylinder assembly during use.

[0008] Preferably, the plug is threaded onto the cylinder assembly.

[0009] The plug is connected to the cylinder assembly by threads. When the plug is not in use, it can be fixed to the cylinder assembly by threads. When the plug is needed, it can be fixed to the cylinder assembly by threads. Since the plug is fixed to the cylinder assembly by threads, there is no need to worry about the plug falling off the cylinder assembly during use.

[0010] Preferably, the plug includes a plug and a connector at both ends of the axis, the plug being adapted to the end of the oil outlet pipe; the cylinder assembly is provided with a connecting hole that is threaded to the connector.

[0011] The cylinder assembly has a connecting hole that mates with the threaded connector. The connector mates with the connecting hole to facilitate the threaded connection of the plug to the cylinder assembly.

[0012] Preferably, the connecting rod includes a first connecting rod and a second connecting rod arranged in parallel, and the first connecting rod and the second connecting rod are fixedly connected by a connecting rod connecting part, and a connecting hole is provided on the connecting rod connecting part.

[0013] By placing the plug on the connecting rod joint, the connecting rod joint is directly exposed on its end face when using a grease gun, making it easy for operators to spot and use the plug. Furthermore, the plug in this application is positioned on the central axis of the connecting rod joint, resulting in a more aesthetically pleasing overall structure.

[0014] Preferably, an end cap is provided at one end of the cylinder body, and the connection hole is located on the end cap.

[0015] The connection hole is located on the end cap, making it easy for users to spot and use the plug.

[0016] Preferably, the connection hole is located on one side of the handle in the thickness direction.

[0017] By placing the connection hole on one side of the handle's thickness direction, new users can easily find and use the plug, making it convenient for them.

[0018] Preferably, the connection hole is located along the length of the handle and close to the end face of the oil outlet pipe.

[0019] By placing the connection hole at the end along the length of the handle, new users can easily find and use the plug, making it convenient for them.

[0020] Preferably, the outer wall of the plug is provided with a knob, and the connector and the plug are respectively located on both sides of the polygonal knob.

[0021] The knob design allows for easy rotation of the plug, making it easy to remove or install the plug on the cylinder assembly.

[0022] Preferably, the knob protrudes from the outer wall of the plug, and the cross-section of the knob is a polygonal structure.

[0023] The polygonal structure not only makes it convenient to rotate the knob directly by hand, but also allows the use of tools to rotate the knob; for example, the knob in this embodiment is a hexagonal structure, so a hexagonal wrench can be used to rotate the knob.

[0024] Preferably, the side wall of the knob is provided with texture to increase friction.

[0025] Texture can increase the friction on the outer wall of the knob, or a rubber ring can be set around the knob to make it easy to turn the knob by hand.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] (1) The plug is connected to the cylinder assembly by means of threads. When the plug is not in use, it can be fixed to the cylinder assembly by means of threads. When the plug is needed, it can be fixed to the cylinder assembly by means of threads. Since the plug is fixed to the cylinder assembly by means of threads, there is no need to worry about the plug falling off the cylinder assembly when using it.

[0028] (2) The plug is connected to the cylinder assembly by means of threads. When the plug is not in use, it can be fixed to the cylinder assembly by means of threads. When the plug is needed, it can be fixed to the cylinder assembly by means of threads. Since the plug is fixed to the cylinder assembly by means of threads, there is no need to worry about the plug falling off the cylinder assembly when using it. Attached Figure Description

[0029] Figure 1 This is the front view of Embodiment 1 of this utility model.

[0030] Figure 2 This is a top view of Embodiment 1 of this utility model.

[0031] Figure 3 This is a structural schematic diagram of the connecting rod of this utility model.

[0032] Figure 4 This is a top view of the plug of this utility model when it is installed on the end cap.

[0033] Figure 5 This is the front view of Embodiment 3 of this utility model.

[0034] Figure 6 This is a top view of Embodiment 3 of this utility model.

[0035] Figure 7 This is the front view of Embodiment 4 of this utility model.

[0036] In the diagram: 1. Plug, 11. Nozzle, 12. Connector, 13. Knob, 14. Connecting hole, 2. Cylinder body, 3. Oil outlet pipe, 4. Connecting rod, 41. First connecting rod, 42. Second connecting rod, 43. Connecting rod connection, 44. Connecting rod end hole, 5. End cap, 6. Handle. Detailed Implementation

[0037] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0038] Example 1: Refer to Figures 1 to 3 As shown, a grease gun includes: a barrel assembly and a plug 1 disposed on the barrel assembly. The barrel assembly includes a barrel body 2, an oil outlet pipe 3, and a connecting rod 4. An end cap 5 is provided at one end of the barrel body 2, and the oil outlet pipe 3 passes through the end cap 5 and communicates with the interior of the barrel body 2; a handle 6 is rotatably connected to the end of the connecting rod 4 away from the barrel body 2.

[0039] The plug 1 is detachably mounted on the cylinder assembly.

[0040] The plug 1 can be installed on the cylinder assembly in a variety of detachable ways. When in use, it can be directly removed from the cylinder assembly to block the outlet of the oil pipe 3. When not in use, it can be installed on the cylinder assembly, which makes it easy to fix and store the plug 1 and prevent the plug 1 from being lost.

[0041] In one embodiment, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0042] Of course, in this application, a magnet can also be provided on the plug 1, which can be attracted to the cylinder assembly by the magnet, so that the plug 1 can be detachably installed on the cylinder assembly. This makes it convenient for the magnet to be attracted to various positions on the cylinder assembly.

[0043] In one embodiment, the plug 1 includes a plug 11 and a connector 12 disposed at both ends of the axis. The plug 11 is adapted to the end of the oil outlet pipe 3. The cylinder assembly is provided with a connecting hole 14 that is threadedly engaged with the connector 12. The connector 12 is used to engage with the connecting hole 14 to facilitate the threaded connection between the plug 1 and the cylinder assembly.

[0044] In one embodiment, a knob portion 13 is provided on the outer wall of the plug 1, and the connector 12 and the plug 11 are respectively provided on both sides of the polygonal knob portion 13. The knob portion 13 allows the plug 1 to be rotated easily, making it easy to remove or install the plug 1 on the cylinder assembly.

[0045] In one embodiment, the knob portion 13 protrudes from the outer side wall of the plug 1, and the cross-section of the knob portion 13 is a polygonal structure. The polygonal structure not only makes it convenient to rotate the knob portion 13 directly by hand, but also allows the knob portion 13 to be rotated using tools; for example, the knob portion 13 in this embodiment is a hexagonal structure, so a hexagonal wrench can be used to rotate the knob portion 13.

[0046] Of course, textures can also be directly provided on the side wall of the knob part 13. The textures can increase the friction of the outer side wall of the knob part 13, or a rubber ring can be provided around the knob part 13 so that the knob part 13 can be turned directly by hand.

[0047] In one embodiment, the connecting rod 4 includes a first connecting rod 41 and a second connecting rod 42 arranged in parallel. The first connecting rod 41 and the second connecting rod 42 are fixedly connected by a connecting rod connecting part 43. Connecting rod end holes 44 are provided at both ends of the first connecting rod 41 and the second connecting rod 42. The handle 6 also has a handle 6 end hole at its end. The handle 6 and the connecting rod end hole 44 are engaged to allow the handle 6 to rotate with the connecting rod 4. A connecting hole 14 is provided on the connecting rod connecting part 43. Specifically, the connecting hole 14 is located on the central axis of the connecting rod connecting part 43, and the distance from the central axis to the first connecting rod 41 and the second connecting rod 42 on both sides is equal.

[0048] By placing the plug 1 on the connecting rod connection part 43, the connecting rod connection part 43 is directly exposed on its end face when using a grease gun, making it easy for operators to spot and use the plug 1. Furthermore, the plug 1 is positioned on the central axis of the connecting rod connection part 43, resulting in a more aesthetically pleasing overall structure.

[0049] In this application, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0050] Example 2: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a grease gun includes: a barrel assembly and a plug 1 disposed on the barrel assembly. The barrel assembly includes a barrel body 2, an oil outlet pipe 3, and a connecting rod 4. An end cap 5 is provided at one end of the barrel body 2, and the oil outlet pipe 3 passes through the end cap 5 and communicates with the interior of the barrel body 2; a handle 6 is rotatably connected to the end of the connecting rod 4 away from the barrel body 2.

[0051] The plug 1 is detachably mounted on the cylinder assembly.

[0052] The plug 1 can be installed on the cylinder assembly in a variety of detachable ways. When in use, it can be directly removed from the cylinder assembly to block the outlet of the oil pipe 3. When not in use, it can be installed on the cylinder assembly, which makes it easy to fix and store the plug 1 and prevent the plug 1 from being lost.

[0053] In one embodiment, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0054] Of course, in this application, a magnet can also be provided on the plug 1, which can be attracted to the cylinder assembly by the magnet, so that the plug 1 can be detachably installed on the cylinder assembly. This makes it convenient for the magnet to be attracted to various positions on the cylinder assembly.

[0055] In one embodiment, the plug 1 includes a plug 11 and a connector 12 disposed at both ends of the axis. The plug 11 is adapted to the end of the oil outlet pipe 3. The cylinder assembly is provided with a connecting hole 14 that is threadedly engaged with the connector 12. The connector 12 is used to engage with the connecting hole 14 to facilitate the threaded connection between the plug 1 and the cylinder assembly.

[0056] In one embodiment, a knob portion 13 is provided on the outer wall of the plug 1, and the connector 12 and the plug 11 are respectively provided on both sides of the polygonal knob portion 13. The knob portion 13 allows the plug 1 to be rotated easily, making it easy to remove or install the plug 1 on the cylinder assembly.

[0057] In one embodiment, the knob portion 13 protrudes from the outer side wall of the plug 1, and the cross-section of the knob portion 13 is a polygonal structure. The polygonal structure not only makes it convenient to rotate the knob portion 13 directly by hand, but also allows the knob portion 13 to be rotated using tools; for example, the knob portion 13 in this embodiment is a hexagonal structure, so a hexagonal wrench can be used to rotate the knob portion 13.

[0058] Of course, textures can also be directly provided on the side wall of the knob part 13. The textures can increase the friction of the outer side wall of the knob part 13, or a rubber ring can be provided around the knob part 13 so that the knob part 13 can be turned directly by hand.

[0059] like Figure 4 As shown, an end cap 5 is provided at one end of the cylinder body 2, and a connection hole 14 is provided on the end cap 5. The connection hole 14 is provided on the end cap 5 so that the user can easily find that the end cap 5 is provided with a plug 1, which makes it convenient for the user to find and use the plug 1 in a timely manner.

[0060] In this application, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0061] Example 3: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, a grease gun includes: a barrel assembly and a plug 1 disposed on the barrel assembly. The barrel assembly includes a barrel body 2, an oil outlet pipe 3, and a connecting rod 4. An end cap 5 is provided at one end of the barrel body 2, and the oil outlet pipe 3 passes through the end cap 5 and communicates with the interior of the barrel body 2; a handle 6 is rotatably connected to the end of the connecting rod 4 away from the barrel body 2.

[0062] The plug 1 is detachably mounted on the cylinder assembly.

[0063] The plug 1 can be installed on the cylinder assembly in a variety of detachable ways. When in use, it can be directly removed from the cylinder assembly to block the outlet of the oil pipe 3. When not in use, it can be installed on the cylinder assembly, which makes it easy to fix and store the plug 1 and prevent the plug 1 from being lost.

[0064] In one embodiment, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0065] Of course, in this application, a magnet can also be provided on the plug 1, which can be attracted to the cylinder assembly by the magnet, so that the plug 1 can be detachably installed on the cylinder assembly. This makes it convenient for the magnet to be attracted to various positions on the cylinder assembly.

[0066] In one embodiment, the plug 1 includes a plug 11 and a connector 12 disposed at both ends of the axis. The plug 11 is adapted to the end of the oil outlet pipe 3. The cylinder assembly is provided with a connecting hole 14 that is threadedly engaged with the connector 12. The connector 12 is used to engage with the connecting hole 14 to facilitate the threaded connection between the plug 1 and the cylinder assembly.

[0067] In one embodiment, a knob portion 13 is provided on the outer wall of the plug 1, and the connector 12 and the plug 11 are respectively provided on both sides of the polygonal knob portion 13. The knob portion 13 allows the plug 1 to be rotated easily, making it easy to remove or install the plug 1 on the cylinder assembly.

[0068] In one embodiment, the knob portion 13 protrudes from the outer side wall of the plug 1, and the cross-section of the knob portion 13 is a polygonal structure. The polygonal structure not only makes it convenient to rotate the knob portion 13 directly by hand, but also allows the knob portion 13 to be rotated using tools; for example, the knob portion 13 in this embodiment is a hexagonal structure, so a hexagonal wrench can be used to rotate the knob portion 13.

[0069] Of course, textures can also be directly provided on the side wall of the knob part 13. The textures can increase the friction of the outer side wall of the knob part 13, or a rubber ring can be provided around the knob part 13 so that the knob part 13 can be turned directly by hand.

[0070] like Figure 5 and Figure 6 As shown, the connection hole 14 is located on one side of the handle 6 in the thickness direction. By placing the connection hole 14 on one side of the handle 6 in the thickness direction, new users can easily find and use the plug 1, making it convenient for them to use.

[0071] In this application, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0072] Example 4: Reference Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, a grease gun includes: a barrel assembly and a plug 1 disposed on the barrel assembly. The barrel assembly includes a barrel body 2, an oil outlet pipe 3, and a connecting rod 4. An end cap 5 is provided at one end of the barrel body 2, and the oil outlet pipe 3 passes through the end cap 5 and communicates with the interior of the barrel body 2; a handle 6 is rotatably connected to the end of the connecting rod 4 away from the barrel body 2.

[0073] The plug 1 is detachably mounted on the cylinder assembly.

[0074] The plug 1 can be installed on the cylinder assembly in a variety of detachable ways. When in use, it can be directly removed from the cylinder assembly to block the outlet of the oil pipe 3. When not in use, it can be installed on the cylinder assembly, which makes it easy to fix and store the plug 1 and prevent the plug 1 from being lost.

[0075] In one embodiment, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0076] Of course, in this application, a magnet can also be provided on the plug 1, which can be attracted to the cylinder assembly by the magnet, so that the plug 1 can be detachably installed on the cylinder assembly. This makes it convenient for the magnet to be attracted to various positions on the cylinder assembly.

[0077] In one embodiment, the plug 1 includes a plug 11 and a connector 12 disposed at both ends of the axis. The plug 11 is adapted to the end of the oil outlet pipe 3. The cylinder assembly is provided with a connecting hole 14 that is threadedly engaged with the connector 12. The connector 12 is used to engage with the connecting hole 14 to facilitate the threaded connection between the plug 1 and the cylinder assembly.

[0078] In one embodiment, a knob portion 13 is provided on the outer wall of the plug 1, and the connector 12 and the plug 11 are respectively provided on both sides of the polygonal knob portion 13. The knob portion 13 allows the plug 1 to be rotated easily, making it easy to remove or install the plug 1 on the cylinder assembly.

[0079] In one embodiment, the knob portion 13 protrudes from the outer side wall of the plug 1, and the cross-section of the knob portion 13 is a polygonal structure. The polygonal structure not only makes it convenient to rotate the knob portion 13 directly by hand, but also allows the knob portion 13 to be rotated using tools; for example, the knob portion 13 in this embodiment is a hexagonal structure, so a hexagonal wrench can be used to rotate the knob portion 13.

[0080] Of course, textures can also be directly provided on the side wall of the knob part 13. The textures can increase the friction of the outer side wall of the knob part 13, or a rubber ring can be provided around the knob part 13 so that the knob part 13 can be turned directly by hand.

[0081] like Figure 7As shown, the connection hole 14 is located along the length of the handle 6 and near the end face of the oil outlet pipe 3. By placing the connection hole 14 at the end along the length of the handle 6, new users can easily find and use the plug 1, making it convenient for them to use.

[0082] By placing the plug 1 on the connecting rod connection part 43, the connecting rod connection part 43 is directly exposed on its end face when using a grease gun, making it easy for operators to spot and use the plug 1. Furthermore, the plug 1 is positioned on the central axis of the connecting rod connection part 43, resulting in a more aesthetically pleasing overall structure.

[0083] In this application, the plug 1 is connected to the cylinder assembly by a thread. When the plug 1 is not in use, it can be fixed to the cylinder assembly by a thread. When the plug 1 needs to be used, it can be fixed to the cylinder assembly by a thread. Since the plug 1 is fixed to the cylinder assembly by a thread, there is no need to worry about the plug 1 falling off the cylinder assembly during use.

[0084] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A grease gun, characterized in that, include: The cylinder assembly includes the cylinder body, the oil outlet pipe, and the connecting rod. The oil outlet pipe is connected to the cylinder body, and the end of the connecting rod away from the cylinder body is rotatably connected to a handle; The plug includes a plug and a connector located at both ends of the shaft. The plug is adapted to the end of the oil outlet pipe. The plug is threaded onto the cylinder assembly, which has a connecting hole that mates with the threaded connector.

2. The grease gun according to claim 1, characterized in that, The connecting rod includes a first connecting rod and a second connecting rod arranged in parallel. The first connecting rod and the second connecting rod are fixedly connected by a connecting rod connecting part, and a connecting hole is provided on the connecting rod connecting part.

3. The grease gun according to claim 1 or 2, characterized in that, An end cap is provided at one end of the cylinder body, and the connection hole is located on the end cap.

4. The grease gun according to claim 1 or 2, characterized in that, The connection hole is located on one side of the handle in the thickness direction.

5. The grease gun according to claim 1 or 2, characterized in that, The connection hole is located along the length of the handle and near the end face of the oil outlet pipe.

6. The grease gun according to claim 1 or 2, characterized in that, The outer wall of the plug is provided with a knob, and the connector and the plug are respectively located on both sides of the polygonal knob.

7. The grease gun according to claim 6, characterized in that, The knob protrudes from the outer wall of the plug, and the cross-section of the knob is a polygonal structure.

8. The grease gun according to claim 6, characterized in that, The side wall of the knob is textured to increase friction.

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