Oil nozzle convenient to install

Abstract

The oil nozzle convenient to install comprises a valve body and a valve element, the valve body comprises a valve seat adapter, and an inner cavity of the valve seat is communicated with an inner cavity of the adapter; a first external thread part is arranged at one end, close to the adapter, of the valve seat, a second external thread part is arranged below the first external thread part, a sealing gasket is tightly sleeved at a position between the first external thread part and the second external thread part, and the first external thread part is matched with a nut; the valve element is installed in an inner cavity of the valve seat, a conical sealing part is arranged at the closed end of the valve element towards an opening of the valve seat, and a conical surface is arranged at the opening of the valve seat in a matched mode. The nut is installed on the oil nozzle in a threaded mode, the nut and the oil nozzle are independent of each other, do not affect each other and can rotate relatively, the orientation of a connector of the oil nozzle can be selectively set according to needs after the oil nozzle is installed, then the nut is used for tightly pressing the sealing gasket to seal the installation position of the oil nozzle of a workpiece, and installation convenience of the oil nozzle is improved. And oil leakage after the oil nozzle is installed is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of oil nozzle design, and in particular relates to an oil nozzle that is easy to install. Background Technology

[0002] In existing oil nozzle structures, to facilitate screwing the oil nozzle onto the workpiece and ensure that the sealing gasket of the oil nozzle can seal the workpiece after installation and prevent oil leakage from the connection between the workpiece and the oil nozzle, a hexagonal nut structure is generally integrally formed or welded onto the oil nozzle. The oil nozzle is installed onto the hexagonal nut structure and rotates synchronously with the oil nozzle. The hexagonal nut structure presses the sealing gasket tightly against the surface of the workpiece, thereby sealing the oil. In this nozzle structure, the sealing effect of the gasket depends on the downward pressure applied by the hexagonal nut. The greater the downward pressure, the better the sealing effect. However, since the nozzle connector needs to connect to the oil pipeline, meaning the connector must be aligned with the pipeline after installation, it's difficult to guarantee that the hexagonal nut will precisely compress the gasket after installation. This creates a contradiction: either option must be chosen. Ideally, the nozzle connector should be aligned with the pipeline, which inevitably affects the downward pressure applied by the hexagonal nut to the gasket, leading to a poor seal and oil leakage. Therefore, this conventional nozzle structure presents installation difficulties. Utility Model Content

[0003] In view of this, the present invention aims to provide an easy-to-install grease nipple to improve the convenience of grease nipple installation.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] An easy-to-install nozzle includes a valve body and a valve core. The valve body includes a valve seat and an adapter seat integrally formed on the valve seat. The inner cavity of the valve seat and the inner cavity of the adapter seat are in communication.

[0006] The adapter includes a main body at a 90-degree angle, one end of which is connected to a valve seat, and the other end is integrally formed with a connector. Both ends of the adapter are provided with grip structures.

[0007] The valve seat is provided with a first external thread at one end near the adapter, and a second external thread is provided below the first external thread. A sealing gasket is tightly fitted between the first external thread and the second external thread, and a nut is matched with the first external thread.

[0008] The valve core is installed inside the valve seat cavity. The valve core is cylindrical with one end open and the other end closed. Its open end extends into the valve seat, and its closed end extends out of the valve seat opening. The closed end of the valve core is provided with a throttling orifice. A spring is provided between its open end and the bottom of the valve seat. Two sliding grooves are symmetrically opened on the side wall of the valve core. The sliding grooves are long grooves arranged along the valve core axis. A cylindrical pin is provided near the opening of the valve seat. The cylindrical pin passes through the two sliding grooves. The closed end of the valve core is provided with a conical sealing part facing the opening of the valve seat. A conical surface is provided at the opening of the valve seat to match.

[0009] Furthermore, the valve core sidewall has a liquid passage hole near the closed end.

[0010] Furthermore, a limiting ring is provided between the first external thread portion and the second external thread portion of the valve seat, and a sealing groove is formed between the limiting ring portion and the first external thread portion, and the sealing gasket is tightly assembled in the sealing groove.

[0011] Furthermore, the two ends of the adapter are regular hexagonal prism structures, and the six sides of the regular hexagonal prism structure are the gripping structures of the adapter.

[0012] Furthermore, the connector is provided with external threads.

[0013] Furthermore, the connector is fitted with a protective cover, which seals the connector.

[0014] Compared with the prior art, the easy-to-install nozzle of this utility model has the following advantages:

[0015] In this invention, the nut is threaded onto the oil nozzle. The nut and the oil nozzle are independent and do not affect each other. They can rotate relative to each other. The orientation of the oil nozzle joint after installation can be selectively set as needed. Then, the nut is used to tighten the sealing gasket to seal the oil nozzle installation position on the workpiece, improving the ease of oil nozzle installation and effectively preventing oil leakage after oil nozzle installation. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of an easy-to-install grease nipple according to the present invention.

[0018] Figure 2 This is a cross-sectional view of an easy-to-install grease nipple according to the present invention;

[0019] Figure 3 This is a schematic diagram of the valve body structure in this utility model;

[0020] Figure 4 for Figure 3 AA section view;

[0021] Figure 5 A structural diagram of the mounting hole for installing the easy-to-install oil nozzle described in this utility model;

[0022] Figure 6 This is a schematic diagram of the easy-to-install nozzle mounting structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Valve seat; 101-Second external thread; 102-Limiting ring; 103-Sealing groove; 104-First external thread; 105-Positioning platform; 106-Conical surface; 2-Sealing gasket; 3-Nut; 4-Adapter; 5-Connector; 6-Valve core; 61-Liquid passage; 62-Slide groove; 63-Throttle orifice; 64-Conical sealing part; 7-Cylindrical pin; 8-Spring; 9-Protective cover; 10-Threaded hole; 11-Positioning hole; 12-Positioning surface; 13-Workpiece surface. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 , Figure 2 As shown, an easy-to-install nozzle includes a valve body and a valve core 6. The valve body includes an integrally formed valve seat 1 and an adapter 4. The inner cavities of the valve seat 1 and the adapter 4 are connected, serving as a channel for media flow. A nut 3 is threaded onto the valve seat 1, and a sealing gasket 2 is fitted under the nut 3. The sealing gasket 2 is preferably a rubber gasket. The nut 3 provides downward pressure to the sealing gasket 2, and the sealing gasket 2 seals the connection between the nozzle and the workpiece. The valve core 6 is disposed within the inner cavity of the valve seat 1. The adapter 4 includes a 90-degree angled main body. One end of the main body is connected to the valve seat 1, and the other end is integrally formed with a connector 5 for connecting to an oil pipeline. Both ends of the adapter 4 are provided with gripping structures.

[0027] Valve body structure as follows Figure 3As shown, the valve seat 1 has a first external thread 104 near the adapter 4, which matches the nut 3. The nut 3 is threadedly connected to the first external thread 104. Below the first external thread 104, the valve seat 1 has a second external thread 101. The diameter of the first external thread 104 is larger than the diameter of the second external thread 101. A limiting ring 102 is provided between the first and second external thread 104 and between the valve seat 1 and the first external thread 101. The outer diameter of the limiting ring 102 is larger than the diameter of the second external thread 101, but smaller than the diameter of the first external thread 104. A sealing groove 103 is formed between the limiting ring 102 and the first external thread 104 to accommodate a sealing gasket. The sealing gasket 2 is disposed within the sealing groove 103, and it fits tightly against the bottom and two walls of the sealing groove 103. The outer diameter of the sealing gasket 2 is larger than the outer diameter of the first external thread 104, ensuring that the nut 3 can press down on the sealing gasket 2.

[0028] The valve core 6 is installed inside the valve seat 1. The valve core 6 is cylindrical, with one end open and the other closed. Its open end extends into the valve seat 1, and its closed end extends out of the valve seat 1 opening. A throttling orifice 63 is provided at the closed end of the valve core 6. A spring 8 is provided between the open end of the valve core 6 and the bottom of the valve seat 1. A positioning platform 105 is provided in the inner cavity of the valve seat 1 corresponding to the spring. One end of the spring 8 abuts against the positioning platform 105, and the other end abuts against the valve core 6. A liquid passage hole 61 is provided on the side wall of the valve core 6 near the closed end. Two sliding grooves 62 are symmetrically provided on the side wall of the valve core 6. The sliding grooves 62 are long grooves arranged along the axial direction of the valve core. A cylindrical pin 7 is provided on the valve seat 1 near its own opening. The cylindrical pin 7 passes through the two sliding grooves 62 and prevents the valve core 6 from slipping off the valve seat 1. A conical sealing part 64 is provided at the closed end of the valve core 6 facing the opening of the valve seat 1. A conical surface 106 is provided at the opening of the valve seat 1 to match it.

[0029] In this embodiment, the two ends of the adapter 4 are regular hexagonal prism structures, and their cross-sections are as follows: Figure 4 As shown, the six sides of this regular hexagonal prism structure serve as the gripping structure for the adapter 4. During installation, a wrench matching the regular hexagonal prism structure can be used to screw the nozzle into the mounting hole of the workpiece.

[0030] The mounting hole structure of the corresponding oil nozzle on the workpiece is as follows: Figure 5 As shown, the workpiece includes a threaded hole 10 that matches the second external thread 101, and a positioning hole 11 is countersunk on the top of the threaded hole. The limiting ring 102 of the valve seat 1 and the positioning hole 11 are clearance-fitted. The height of the limiting ring 102 and the depth of the positioning hole 11 should match. After the oil nozzle is installed and the connector 5 is aligned with the oil pipeline, the limiting ring 102 is inserted into the positioning hole 11. At the same time, the upper end face of the limiting ring 102 can be slightly higher or slightly lower than the surface of the workpiece. The limiting ring 102 supports the sealing gasket 2, improves the tightness between the sealing gasket 2 and the sealing groove, and improves its sealing effect.

[0031] The medium flow principle of the oil nozzle is as follows: The valve core 6 is supported by a spring. When the oil flows in from one side of the adapter seat 4, the cylindrical pin 7 abuts against the end of the slide groove 62. At this time, the length of the valve core 6 extending out of the valve seat 1 reaches its maximum, and the valve core 6 remains balanced. The medium is discharged simultaneously from the liquid passage 61, the slide groove 62, and the throttling orifice 63. When the oil flows in the reverse direction, the oil will enter from the opening side of the valve seat 1. At this time, the valve core 6 is pushed back into the inner cavity of the valve seat 1 by the oil pressure. The conical sealing part 64 of the valve core 6 cooperates with the conical surface 106 at the opening of the valve seat 1, so that the valve core 6 and the valve seat 1 are sealed. The oil can only enter from the throttling orifice 63, thereby playing a blocking role. The oil is only slowly released from the throttling orifice 63.

[0032] In this utility model, the connector 5 is matched with a protective cover 9. Before the oil nozzle is connected to the oil pipeline, the protective cover 9 covers the connector 5.

[0033] The installation principle of this utility model is as follows: using a wrench and the end of the adapter 4 close to the valve seat, rotate the oil nozzle so that the second external thread 101 of the oil nozzle is threadedly connected to the threaded hole 10 of the workpiece. After the oil nozzle is installed, ensure that its connector 5 is aligned with the oil pipeline. At this time, the limiting ring 102 of the valve seat 1 is embedded in the positioning hole of the workpiece. Then, tighten the nut 3 and press down the sealing gasket 2. The sealing gasket 2 seals the workpiece to prevent oil leakage.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conveniently installed oil nozzle characterized by: It includes a valve body and a valve core (6). The valve body includes a valve seat (1) and an integrally formed adapter (4) on the valve seat (1). The inner cavity of the valve seat (1) and the inner cavity of the adapter (4) are connected. The adapter (4) includes a main body at a 90-degree angle, one end of which is connected to the valve seat (1), and the other end is integrally formed with a connector (5). Both ends of the adapter (4) are respectively provided with gripping structures. The valve seat (1) is provided with a first external thread (104) at one end near the adapter (4), and a second external thread (101) is provided below the first external thread (104). A sealing gasket (2) is tightly fitted between the first external thread (104) and the second external thread (101), and a nut (3) is matched with the first external thread (104). The valve core (6) is installed in the inner cavity of the valve seat (1). The valve core (6) is a cylindrical shape with one end open and the other end closed. Its open end extends into the valve seat (1) and its closed end extends out of the opening of the valve seat (1). The closed end of the valve core is provided with a throttling orifice (63). A spring (8) is provided between its open end and the bottom of the valve seat (1). Two sliding grooves (62) are symmetrically opened on the side wall of the valve core (6). The sliding grooves (62) are long grooves arranged along the axial direction of the valve core. A cylindrical pin (7) is provided near the opening of the valve seat (1). The cylindrical pin (7) passes through the two sliding grooves (62) in sequence. The closed end of the valve core (6) facing the opening of the valve seat (1) is provided with a conical sealing part (64). A conical surface (106) is provided at the opening of the valve seat (1).

2. A convenient to install oil filler neck as defined in claim 1, wherein: The valve core (6) has a liquid passage hole (61) on its side wall near the closed end.

3. A convenient to install oil filler neck as defined in claim 1, wherein: The valve seat (1) has a limiting ring (102) between the first external thread (104) and the second external thread (101), and the limiting ring (102) and the first external thread (104) form a sealing groove (103), and the sealing gasket (2) is tightly assembled in the sealing groove (103).

4. The easy-to-install oiler of claim 1, wherein: The adapter (4) has a regular hexagonal prism structure at both ends, and the six sides of the regular hexagonal prism structure are the gripping structure of the adapter (4).

5. The easy-to-install oiler of claim 1, wherein: The connector (5) is provided with external threads.

6. A conveniently mountable oiler according to claim 1, characterized in that: The connector (5) is fitted with a protective cover (9), which covers the connector (5).

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