Lubricating point oil injection indicating device

Abstract

The utility model relates to the technical field of grease lubricating systems, in particular to a lubricating point oil injection indicating device, which is characterized in that the left end of a ferrule type end straight joint is connected with an oil inlet pipeline in a ferrule manner, and the right end of a joint body is connected with a lubricating point oil injection nozzle; then, when grease enters the adapter from the plunger type lubricating pump or the distributor through the clamping sleeve type end straight joint, the valve element moves rightwards under the pressure action of the grease, the O-shaped ring is separated from the adapter, the grease enters the transparent pipe through the valve element and then penetrates through the transparent pipe to enter a lubricating point, and then the grease is lubricated. A worker can observe the operation condition of the valve element through the transparent pipe, and then the action state of injecting grease into a lubricating point is indirectly reflected, so that the practicability of equipment is improved; comprising an O-shaped ring; the valve further comprises a clamping sleeve type end straight-through connector, an adapter, a connector body, a valve element, a transparent pipe and a spring.

Description

Technical Field

[0001] This utility model relates to the technical field of grease lubrication systems, and in particular to a lubrication point oil injection indicator device. Background Technology

[0002] In grease lubrication systems, it is difficult to observe whether grease has been injected into the lubrication points at the end of the line. Traditional lubrication systems use distributors equipped with grease indicators, which can be used to indicate whether the lubrication points are blocked after being dispensed from the distributor.

[0003] However, there is usually a section of pipe connected to the lubrication point at the rear end of the distributor. The oil filling indicator rod of the distributor cannot effectively indicate the blockage status of this section of pipe at the rear end of the distributor. Therefore, it cannot intuitively reflect the actual situation of grease entering the lubrication point. As a result, in actual use, it is difficult for operators to accurately judge whether the lubrication point has been effectively lubricated or over-lubricated and wasted grease, resulting in poor practicality. Therefore, there is an urgent need for a lubrication point oil filling indicator device to improve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a lubrication point oil filling indicator device. The left end of the compression fitting is connected to the oil inlet pipe via a compression fitting, and the right end of the fitting body is connected to the lubrication point oil filling nozzle. When grease enters the adapter from the plunger-type lubrication pump or distributor through the compression fitting, the valve core moves to the right under the pressure of the grease, causing the O-ring to separate from the adapter. The grease enters the transparent tube through the valve core, and then enters the lubrication point through the transparent tube. The operator can observe the operation of the valve core through the transparent tube, thereby indirectly reflecting the action status of grease injection into the lubrication point, thus improving the practicality of the equipment.

[0005] This utility model discloses a lubrication point oil injection indicator device, including an O-ring; it also includes a compression fitting end straight connector, an adapter, a connector body, a valve core, a transparent tube, and a spring. The left end of the adapter is installed on the right end of the compression fitting end straight connector, the left end of the connector body is installed on the right end of the adapter, the transparent tube is installed in the middle of the connector body, the valve core and the spring are both installed in the connector body, and the valve core can slide in the connector body, the spring is located in the transparent tube, and the O-ring is fitted on the valve core.

[0006] Connect the left end of the compression fitting to the oil inlet pipe using a compression fitting method, and connect the right end of the fitting body to the lubrication point grease nipple. When grease enters the adapter from the plunger-type lubrication pump or distributor through the compression fitting, the valve core moves to the right under the pressure of the grease, causing the O-ring to separate from the adapter. The grease then enters the transparent tube through the valve core and then through the transparent tube to the lubrication point. The operator can observe the operation of the valve core through the transparent tube, thereby indirectly reflecting the action status of grease injection into the lubrication point, thus improving the practicality of the equipment.

[0007] Preferably, the right end of the compression fitting straight connector is provided with an external thread.

[0008] Preferably, the adapter has an internal thread on its left end, a hollow cavity inside the adapter, and an external thread on its right end.

[0009] Preferably, the left end of the connector body is provided with an internal thread II, the middle part of the connector body has a hollow structure, the interior of the connector body is provided with a hollow cavity II, and the right end of the connector body is provided with an external thread III.

[0010] Preferably, the valve core has a throttling groove at its left end, a pressure relief groove at its left side, an annular groove and a boss at its middle, and a symmetrical groove at its right side. The annular groove limits the O-ring, and the boss facilitates the spring's support of the valve core. After the grease enters the adapter, the pressure inside the adapter increases, causing the valve core to move to the right, separating the O-ring from the adapter. Then, the oil passes through the pressure relief groove into the transparent tube, and the oil in the transparent tube then passes through the symmetrical groove and the right side of the connector body to the lubrication point.

[0011] Preferably, the transparent tube is made of a transparent material and is located at the hollow structure of the connector body.

[0012] Preferably, a set of flat rubber pads is provided at each of the left and right ends of the transparent tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the left end of the compression fitting is connected to the oil inlet pipe by compression fitting, and the right end of the fitting body is connected to the lubrication point grease nipple. When grease enters the adapter from the plunger lubrication pump or distributor through the compression fitting, the valve core moves to the right under the pressure of the grease, and the O-ring separates from the adapter. The grease enters the transparent tube through the valve core, and then enters the lubrication point through the transparent tube. The operator can observe the operation of the valve core through the transparent tube, thereby indirectly reflecting the action status of the grease injection into the lubrication point, thus improving the practicality of the equipment. Attached Figure Description

[0014] Figure 1This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a front view structural diagram of the valve core of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the present invention during grease injection;

[0018] Figure 5 This is a schematic diagram of the structure of this utility model when it is depressurized.

[0019] The following labels are used in the attached diagram: 1. Compression fitting straight connector; 2. Adapter; 3. Connector body; 4. Valve core; 5. Transparent tube; 6. Flat rubber gasket; 7. Spring; 8. O-ring; 41. Throttling groove; 42. Pressure relief groove; 43. Annular groove; 44. Boss; 45. Symmetrical groove. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example

[0022] like Figures 1 to 5 As shown, a lubrication point oil injection indicator device includes an O-ring 8; it also includes a compression fitting end straight connector 1, an adapter 2, a connector body 3, a valve core 4, a transparent tube 5, and a spring 7. The left end of the adapter 2 is installed on the right end of the compression fitting end straight connector 1, the left end of the connector body 3 is installed on the right end of the adapter 2, the transparent tube 5 is installed in the middle of the connector body 3, the valve core 4 and the spring 7 are both installed inside the connector body 3, and the valve core 4 can slide in the connector body 3, the spring 7 is located in the transparent tube 5, and the O-ring 8 is fitted on the valve core 4.

[0023] The right end of the compression fitting 1 is provided with an external thread.

[0024] The adapter 2 has an internal thread 1 on its left end, a hollow cavity 1 inside its interior, and an external thread 2 on its right end.

[0025] The left end of the connector body 3 is provided with an internal thread II, the middle part of the connector body 3 is a hollow structure, the interior of the connector body 3 is provided with a hollow cavity II, and the right end of the connector body 3 is provided with an external thread III.

[0026] The valve core 4 has a throttling groove 41 at its left end, a pressure relief groove 42 at its left side, an annular groove 43 and a boss 44 at its middle side, and a symmetrical groove 45 at its right side.

[0027] The transparent tube 5 is made of transparent material and is located at the hollow structure of the connector body 3;

[0028] A set of flat rubber pads 6 is provided at each of the left and right ends of the transparent tube 5;

[0029] Install the left thread of adapter 2 onto the right thread of ferrule-type straight connector 1, and install the left thread of connector body 3 onto the right thread of adapter 2. Then connect the left thread of ferrule-type straight connector 1 to the oil inlet pipe via ferrule connection, and connect the right thread of connector body 3 to the lubrication point grease nipple. When grease enters adapter 2 from the plunger-type lubrication pump or distributor through ferrule-type straight connector 1, valve core 4 moves to the right under the pressure of the grease, causing O-ring 8 to separate from adapter 2. The oil then passes through pressure relief groove 42 into transparent tube 5, and the oil in transparent tube 5 passes through symmetrical groove 45 and the right side of connector body 3 to the lubrication point. The operation of the valve core 4 can be observed through the transparent tube 5, thus indirectly reflecting the action status of grease injection into the lubrication point. Under the pressure of grease in the adapter 2, the valve core 4 continues to move to the right. After the throttling groove 41 connects with the inside of the transparent tube 5, a large amount of grease in the adapter 2 enters the transparent tube 5. The valve core 4 returns under the elastic force of the spring 7, and the grease flows again from the pressure relief groove 42 into the transparent tube 5. After the valve core 4 is fully reset, the O-ring 8 contacts the adapter 2 to complete the seal, keeping the pipeline in a pressure-holding state and preventing grease from flowing out of the pipeline. As grease continues to flow out from the plunger-type lubrication pump or distributor, the valve core repeats the above process, thereby improving the practicality of the equipment.

[0030] The flat rubber pad 6 and O-ring 8 of the lubrication point oil injection indicator device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A lubrication point oil injection indicator device, comprising an O-ring (8); characterized in that, It also includes a compression fitting (1), an adapter (2), a connector body (3), a valve core (4), a transparent tube (5), and a spring (7). The left end of the adapter (2) is installed on the right end of the compression fitting (1), the left end of the connector body (3) is installed on the right end of the adapter (2), the transparent tube (5) is installed in the middle of the connector body (3), the valve core (4) and the spring (7) are both installed inside the connector body (3), and the valve core (4) can slide in the connector body (3), the spring (7) is located in the transparent tube (5), and the O-ring (8) is fitted on the valve core (4).

2. The lubrication point oil injection indicator device as described in claim 1, characterized in that, The right end of the compression fitting (1) is provided with an external thread.

3. The lubrication point oil injection indicator device as described in claim 1, characterized in that, The adapter (2) has an internal thread on its left end, a hollow cavity inside its interior, and an external thread on its right end.

4. The lubrication point oil injection indicator device as described in claim 1, characterized in that, The left end of the connector body (3) is provided with an internal thread II, the middle part of the connector body (3) is a hollow structure, the interior of the connector body (3) is provided with a hollow cavity II, and the right end of the connector body (3) is provided with an external thread III.

5. The lubrication point oil injection indicator device as described in claim 1, characterized in that, The valve core (4) has a throttling groove (41) at its left end, a pressure relief groove (42) at its left side, an annular groove (43) and a boss (44) at its middle side, and a symmetrical groove (45) at its right side.

6. The lubrication point oil injection indicator device as described in claim 4, characterized in that, The transparent tube (5) is made of transparent material and is located in the hollow structure of the connector body (3).

7. The lubrication point oil injection indicator device as described in claim 1, characterized in that, A set of flat rubber pads (6) is provided at each of the left and right ends of the transparent tube (5).

Images