Lubricating oil bin sealing assembly and automatic oiling machine

Abstract

The utility model discloses a lubricating oil bin sealing assembly and an automatic oiling machine, and the lubricating oil bin sealing assembly comprises a grease bag which is provided with an oil outlet pipe; the general assembly structure is provided with a center hole, and the oil outlet pipe is inserted into the center hole and is in threaded connection with the center hole; the end part of the oil pumping pipe penetrates into the oil outlet pipe and is hermetically connected with the oil outlet pipe, and the middle part of the oil pumping pipe penetrates into the central hole and is hermetically connected with the central hole; the oil pumping pipe is provided with a one-way valve. According to the lubricating oil bin sealing assembly, the structure is simple, the sealing effect is good, and the oil leakage risk can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil injectors, in particular to a lubricating oil bin sealing component and an automatic oil injector. Background Art

[0002] For mechanical equipment that operates for a long time or is in a position that is inconvenient for manual oiling, oil lubrication can currently be performed through an external oiling machine. However, the existing oiling machines have the problem of poor sealing effect after long-term operation, resulting in oil leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a lubricating oil tank sealing assembly, which has a good sealing effect and can reduce the risk of oil leakage.

[0004] The utility model also provides an automatic oil filling machine with the lubricating oil bin sealing assembly.

[0005] The lubricating oil tank sealing assembly according to the first embodiment of the utility model comprises:

[0006] Grease bag, equipped with oil outlet pipe;

[0007] The assembly structure is provided with a center hole, the oil outlet pipe is inserted into the center hole and is threadedly connected to the center hole;

[0008] The oil pump pipe has an end portion passing through the oil outlet pipe and being sealedly connected to the oil outlet pipe, and a middle portion passing through the center hole and being sealedly connected to the center hole; a one-way valve is installed on the oil pump pipe.

[0009] The lubricating oil tank sealing assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0010] By sealingly connecting the end of the oil pump pipe to the oil outlet pipe of the grease bag and sealingly connecting the middle part of the oil pump pipe to the center hole of the assembly structure, the risk of grease leaking from the grease bag through the connection is effectively reduced; the oil outlet pipe is threadedly connected to the center hole, the connection method is simple, the manufacturing cost is low and the connection effect is stable; the oil pump pipe is installed with a one-way valve to prevent grease from directly flowing out, further reducing the risk of oil leakage.

[0011] According to some embodiments of the present utility model, the oil outlet pipe includes a chamfered section and an oil outlet section, and the diameter of the chamfered section is larger than the diameter of the oil outlet section.

[0012] According to some embodiments of the present utility model, a chamfered groove is provided at the first end of the central hole, and the chamfered section is embedded in the chamfered groove.

[0013] According to some embodiments of the utility model, a through hole axially penetrating the oil pump pipe is provided at the center of the oil pump pipe, and the one-way valve is installed in the through hole.

[0014] According to some embodiments of the present invention, the one-way valve is installed at one end of the through hole close to the grease bag.

[0015] According to some embodiments of the utility model, the oil pump pipe sleeve is provided with a first sealing ring and a second sealing ring, the oil pump pipe is sealed connected to the oil outlet pipe through the first sealing ring, and the oil pump pipe is sealed connected to the center hole through the second sealing ring.

[0016] According to some embodiments of the present utility model, two first sealing rings are provided, and the two first sealing rings are spaced apart along the axial direction of the pump oil pipe.

[0017] According to some embodiments of the present utility model, a center ring extending toward the center is provided on the hole wall of the center hole, and the first sealing ring and the second sealing ring are respectively arranged on both sides of the center ring.

[0018] According to some embodiments of the utility model, the oil pump pipe includes a first diameter section and a second diameter section, the diameter of the second diameter section is larger than the diameter of the first diameter section, and the first sealing ring and the second sealing ring are both installed in the first diameter section;

[0019] A shaft shoulder is formed at the connection between the first diameter section and the second diameter section, and the second sealing ring is installed between the shaft shoulder and the center ring.

[0020] The automatic oil filling machine according to the second embodiment of the utility model comprises the above-mentioned lubricating oil bin sealing assembly. Since the automatic oil filling machine comprises the above-mentioned lubricating oil bin sealing assembly, it at least has all the beneficial effects of the lubricating oil bin sealing assembly.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 It is a schematic diagram of the assembly of the lubricating oil tank sealing assembly of the first embodiment of the utility model;

[0024] Figure 2 A cross-sectional view of a lubricating oil tank sealing assembly according to an embodiment of the first aspect of the utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0026] Figure Number:

[0027] Grease bag 100, oil outlet pipe 110, chamfer section 111, oil outlet section 112;

[0028] Assembly structure 200, center hole 210, chamfered groove 211, center ring 212;

[0029] The oil pump pipe 300 , the first diameter section 301 , the second diameter section 302 , the through hole 310 , the one-way valve 311 , the first sealing ring 320 , and the second sealing ring 330 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 3The lubricating oil tank sealing assembly of the first embodiment of the utility model includes a grease bag 100, an assembly structure 200 and an oil pump pipe 300. The grease bag 100 is provided with an oil outlet pipe 110, and the assembly structure 200 is provided with a center hole 210. The oil outlet pipe 110 is inserted into the center hole 210 and is threadedly connected to the center hole 210. The oil outlet pipe 110 is threadedly connected to the center hole 210, and the connection method is simple, the manufacturing cost is low, and the connection effect is stable; the end of the oil pump pipe 300 is penetrated into the oil outlet pipe 110 and is sealed with the oil outlet pipe 110, and the middle part is penetrated into the center hole 210 and is sealed with the center hole 210; the oil pump pipe 300 is installed with a one-way valve 311. By sealingly connecting the end of the oil pump pipe 300 to the oil outlet pipe 110 of the grease bag 100 and the middle of the oil pump pipe 300 to the center hole 210 of the assembly structure 200, the risk of grease leaking from the grease bag 100 through the connection is effectively reduced; the oil pump pipe 300 is installed with a one-way valve 311 to prevent the grease from flowing out directly, further reducing the risk of oil leakage.

[0035] In the embodiment of the present utility model, the oil outlet pipe 110 includes a chamfered section 111 and an oil outlet section 112. The diameter of the chamfered section 111 is larger than the diameter of the oil outlet section 112. Figure 2 , Figure 3 As shown, the oil outlet pipe 110 is arranged at the bottom end of the grease bag 100, and the oil outlet section 112 of the oil outlet pipe 110 is connected to the grease bag 100 through the chamfered section 111, the chamfered section 111 is conical, and the diameter of the oil outlet section 112 is uniform and cylindrical; the oil outlet pipe 110 is designed to include the chamfered section 111 and the oil outlet section 112, and the chamfered section 111 is conical, which can effectively improve the stability of the oil outlet pipe 110 and reduce the risk of the oil outlet pipe 110 breaking.

[0036] In the embodiment of the present utility model, the first end of the central hole 210 is provided with a chamfered groove 211, and the chamfered section 111 is embedded in the chamfered groove 211. Figure 3 As shown, the size of the chamfered groove 211 is the same as that of the chamfered section 111, and the chamfered groove 211 is also tapered; the chamfered groove 211 is designed for the chamfered section 111 to be embedded, which can make the distance between the grease bag 100 and the assembly structure 200 smaller and the two closer, that is, it ensures that the lower surface of the grease bag 100 can fit with the upper surface of the assembly structure 200, thereby improving the stability of the connection between the two; at the same time, since the chamfered section 111 is also embedded in the chamfered groove 211, and the chamfered groove 211 is also not tapered, the oil outlet pipe 110 is not easy to bend, thereby reducing the risk of damage to the oil outlet pipe 110 and ensuring that the grease bag 100 can be used stably for a long time.

[0037] In the embodiment of the present utility model, a through hole 310 is provided in the center of the oil pump pipe 300, which axially penetrates the oil pump pipe 300, and a one-way valve 311 is installed in the through hole 310. Figure 3 As shown, the one-way valve 311 is installed at one end of the through hole 310 close to the grease bag 100. The one-way valve 311 is arranged in the through hole 310, which can better reduce the size of the pump oil pipe 300, thereby reducing the volume of the oil injection machine; the one-way valve 311 is arranged at one end of the through hole 310 close to the grease bag 100, which can prevent excessive grease from accumulating in the through hole 310, reducing the risk of the through hole 310 being blocked. The specific structure of the one-way valve 311 is not limited in the present utility model, and a suitable one-way valve 311 can be used according to actual conditions, such as a ball-type one-way valve 311.

[0038] It can be imagined that the one-way valve 311 is not limited to being set at the end of the through hole 310 close to the grease bag 100, but can also be set at other positions of the through hole 310, such as being set at the center position of the through hole 310 or the end of the through hole 310 away from the grease bag 100; in addition, the one-way valve 311 is not limited to being set in the through hole 310, and the one-way valve 311 can also be set outside the through hole 310, for example, the one-way valve 311 is set to be connected to the general assembly structure 200, and the one-way valve 311 is set at the end of the pump oil pipe 300 away from the grease bag 100.

[0039] It should be understood that the oil pumping pipe 300 is also connected to an oil pumping device, which is connected to the oil pumping pipe 300, and the oil pumping device partially extends into the through hole 310 to form a closed chamber below the one-way valve 311 and in the through hole 310, and the oil pumping device realizes the pumping out of the grease in the grease bag 100 by changing the volume of the closed chamber; for example, when the volume in the closed chamber increases, the pressure in the grease bag 100 will be greater than the pressure in the closed chamber, so the grease in the grease bag 100 will enter the sealed chamber through the one-way valve 311; when the volume in the closed chamber decreases, the pressure in the closed chamber will be greater than the pressure in the grease bag 100, and the one-way valve 311 is in a closed state, and the grease in the closed chamber cannot enter the grease bag 100 through the one-way valve 311, so the grease in the closed chamber will enter the oil pumping device, and then the oil pumping device pumps the grease out.

[0040] In the embodiment of the utility model, the oil pump pipe 300 is provided with a first sealing ring 320 and a second sealing ring 330. The oil pump pipe 300 is sealed and connected to the oil outlet pipe 110 through the first sealing ring 320, and the oil pump pipe 300 is sealed and connected to the center hole 210 through the second sealing ring 330. Figure 2 , Figure 3As shown, the oil pump pipe 300 includes a first diameter section 301 and a second diameter section 302, the diameter of the second diameter section 302 is larger than the diameter of the first diameter section 301, the first sealing ring 320 and the second sealing ring 330 are both installed on the first diameter section 301, and the first sealing ring 320 is arranged above the second sealing ring 330. The upper half of the first diameter section 301 is inserted into the oil outlet pipe 110 of the grease bag 100 and is sealed and connected to the oil outlet pipe 110, the first sealing ring 320 is arranged between the inner side wall of the oil outlet pipe 110 and the outer side wall of the first diameter section 301, and the first diameter section 301 is provided with an annular groove for the first sealing ring 320 to be partially embedded. The first sealing ring 320 is used to prevent grease from flowing out through the gap between the outer wall of the first diameter section 301 and the inner wall of the oil outlet pipe 110, which is the first line of defense to prevent grease from flowing out; the second sealing ring 330 is used to prevent grease from flowing out through the outer wall of the first diameter section 301 and the inner wall of the center hole 210, that is, when the grease enters the center hole 210 after passing through the first line of defense, the second sealing ring 330 acts as the second line of defense to prevent grease from flowing out. The cross-sectional area of ​​the second sealing ring 330 is greater than the cross-sectional area of ​​the first sealing ring 320.

[0041] Further, see Figure 3 As shown, in the embodiment of the utility model, two first sealing rings 320 are provided, and the two first sealing rings 320 are arranged at intervals along the axial direction of the oil pump pipe 300. The two first sealing rings 320 can achieve a better sealing effect, and the outer wall of the oil pump pipe 300 is provided with two annular grooves for the two first sealing rings 320 to be respectively embedded; the spacing between the two first sealing rings 320 should not be too small, otherwise it is difficult to achieve a sufficient sealing effect, and at the same time, the two first sealing rings 320 should be within the length range of the oil outlet pipe 110.

[0042] In the embodiment of the present invention, the hole wall of the central hole 210 is provided with a central ring 212 extending toward the center, and the first sealing ring 320 and the second sealing ring 330 are respectively provided on both sides of the central ring 212. Figure 3 As shown, the distance from the upper surface of the assembly structure 200 to the upper side of the center ring 212 should not be less than the axial length of the oil outlet pipe 110. Preferably, the distance from the upper surface of the assembly structure 200 to the upper side of the center ring 212 should be slightly greater than the axial length of the oil outlet pipe 110, so as to ensure that the oil outlet pipe 110 can be completely loaded into the center hole 210. The inner diameter of the center ring 212 is consistent with the inner diameter of the oil outlet pipe 110, and the diameter of the first diameter section 301 is slightly smaller than the inner diameter of the center ring 212, so that the center hole 210 can guide the oil pump pipe 300. When the oil pump pipe 300 is inserted through the center ring 212, the oil pump pipe 300 can definitely be inserted into the oil outlet pipe 110.

[0043] In the embodiment of the present utility model, the connection between the first diameter section 301 and the second diameter section 302 forms a shaft shoulder, and the second sealing ring 330 is installed between the shaft shoulder and the center ring 212. Figure 3 As shown, the diameter of the second diameter section 302 is larger than the inner diameter of the center ring 212, so the second sealing ring 330 will be confined between the shaft shoulder and the center ring 212, that is, there is no need to set a groove on the outer wall of the pump oil pipe 300 for the second sealing ring 330 to be embedded, thereby reducing the manufacturing cost.

[0044] The automatic oil filling machine of the second embodiment of the utility model includes the above-mentioned lubricating oil tank sealing assembly. The automatic oil filling machine of this embodiment can effectively reduce grease leakage, thereby extending the service life of the grease bag 100; in addition, since the automatic oil filling machine includes the above-mentioned lubricating oil tank sealing assembly, it at least has all the beneficial effects of the lubricating oil tank sealing assembly.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lubricating oil tank sealing assembly, characterized in that: include: Grease bag, equipped with oil outlet pipe; The assembly structure is provided with a center hole, the oil outlet pipe is inserted into the center hole and is threadedly connected to the center hole; The oil pump pipe has an end portion passing through the oil outlet pipe and being sealedly connected to the oil outlet pipe, and a middle portion passing through the center hole and being sealedly connected to the center hole; a one-way valve is installed on the oil pump pipe.

2. The lubricating oil tank sealing assembly according to claim 1, characterized in that: The oil outlet pipe comprises a chamfered section and an oil outlet section, and the diameter of the chamfered section is larger than the diameter of the oil outlet section.

3. The lubricating oil tank sealing assembly according to claim 2, characterized in that: A chamfered groove is provided at the first end of the central hole, and the chamfered section is embedded in the chamfered groove.

4. The lubricating oil tank sealing assembly according to claim 1, characterized in that: A through hole axially penetrating the oil pump pipe is provided at the center of the oil pump pipe, and the one-way valve is installed in the through hole.

5. The lubricating oil tank sealing assembly according to claim 4, characterized in that: The one-way valve is installed at one end of the through hole close to the grease bag.

6. The lubricating oil tank sealing assembly according to claim 1, characterized in that: The oil pump pipe sleeve is provided with a first sealing ring and a second sealing ring. The oil pump pipe is sealed and connected to the oil outlet pipe through the first sealing ring, and the oil pump pipe is sealed and connected to the center hole through the second sealing ring.

7. The lubricating oil tank sealing assembly according to claim 6, characterized in that: There are two first sealing rings, and the two first sealing rings are arranged at intervals along the axial direction of the pump oil pipe.

8. The lubricating oil tank sealing assembly according to claim 6, characterized in that: The hole wall of the central hole is provided with a central ring extending toward the center, and the first sealing ring and the second sealing ring are respectively arranged on both sides of the central ring.

9. The lubricating oil tank sealing assembly according to claim 8, characterized in that: The oil pump pipe comprises a first diameter section and a second diameter section, the diameter of the second diameter section is larger than the diameter of the first diameter section, and the first sealing ring and the second sealing ring are both installed on the first diameter section; A shaft shoulder is formed at the connection between the first diameter section and the second diameter section, and the second sealing ring is installed between the shaft shoulder and the center ring.

10. An automatic oil filling machine, characterized in that: It comprises a lubricating oil tank sealing assembly as claimed in any one of claims 1 to 9.

Images