A high-sealing double-line distributor

Abstract

The present invention relates to a high-sealing double-line distributor. The high-sealing double-line distributor comprises a body, a working piston hole and a control piston hole are arranged in the body, a working piston is guided and assembled in the working piston hole, a control piston is guided and assembled in the control piston hole, the upper and lower ends of the working piston hole are respectively connected with the control piston hole through an upper channel and a lower channel, an upper oil inlet and a lower oil inlet are respectively connected with the upper and lower ends of the control piston hole on the body, an upper oil outlet and a lower oil outlet are arranged on the body, a groove is arranged on the body located on the upper side of the working piston hole, a reed switch is arranged in the groove, an indicator light and a battery are arranged on the body, the battery, the indicator light and the reed switch are connected in series through a wire, a magnet is arranged at the upper end of the working piston, and when the working piston moves upward, the magnet is used to magnetize the reed of the reed switch so that the reed is attracted to conduct the circuit. The present invention does not need to provide a sliding hole coaxial with the working piston in the oil chamber, so that the distributor has good sealing performance.

Description

Technical Field

[0001] The invention belongs to the technical field of oil supply equipment, and in particular relates to a high-sealing double-line distributor. Background Art

[0002] The double-line distributor is a widely used lubricating component in the centralized lubrication system of mechanical equipment. It is usually equipped with two oil inlets, two oil outlets, two piston holes and a stopper. The piston holes are respectively provided with a working piston and a control piston, and the stopper is provided with an indicator rod. The reciprocating motion of the working piston and the control piston alternately delivers lubricating oil to the outside.

[0003] The Chinese invention patent with the authorization announcement number CN215061202U discloses a double-line distributor, which includes a body, a first slide groove and a second slide groove are provided inside the body, a working piston is arranged inside the first slide groove, a control piston is arranged inside the second slide groove, the control piston includes an upper piston and a lower piston, and the two ends of the first slide groove and the second slide groove are connected through the first oil inlet passage and the second oil inlet passage respectively; an indicator rod is fixedly connected to one side of the upper piston, and a sleeve rod is fixedly connected to one side of the lower piston, a groove is provided inside the sleeve rod, a spring is provided inside the groove, one end of the spring is fixedly connected to the bottom of the groove, and the other end of the spring is fixedly connected to the indicator rod, and the end of the indicator rod away from the upper piston is located inside the groove. However, in the double-line distributor, since the indicator rod is directly connected to the working piston, a sliding hole connected to the piston hole and for the indicator rod to slide must be provided in the end wall of the double-line distributor body. This will result in poor sealing of the oil chamber in the double-line distributor body. Even if a rubber sealing ring is installed on the inner wall of the sliding hole, the rubber sealing ring will easily age when the double-line distributor is in a high-temperature and high-pressure environment for a long time, thereby affecting the working performance of the double-line distributor. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-sealing double-line distributor.

[0005] The technical solution of a high-sealing double-line distributor of the present invention is: A highly sealed two-line distributor comprises a main body, wherein a working piston hole and a control piston hole are provided in the main body, a working piston is guided and assembled in the working piston hole, a control piston is guided and assembled in the control piston hole, the upper and lower ends of the working piston hole are respectively connected with the control piston hole through an upper channel and a lower channel, the main body is provided with an upper oil inlet and a lower oil inlet respectively connected with the upper and lower ends of the control piston hole, the main body is provided with an upper oil outlet and a lower oil outlet respectively connected with the middle of the control piston hole, a groove is provided on the main body located on the upper side of the working piston hole, a reed switch is provided in the groove, an indicator light and a battery are provided on the main body, the battery, the indicator light and the reed switch are connected in series through a wire, a magnet is provided on the upper end of the working piston, and when the working piston moves upward, the magnet is used to magnetize the reed of the reed switch so that the reed is attracted to conduct the circuit.

[0006] Furthermore, the groove is a circular groove, the groove is coaxially arranged with the working piston hole, the inner diameter of the circular groove is equal to the inner diameter of the working piston hole, and the reed switch is located at the bottom center of the circular groove.

[0007] Furthermore, the working piston includes an upper small diameter section, a large diameter section and a lower small diameter section, the outer diameter of the large diameter section is equal to the inner diameter of the working piston hole, the upper small diameter section, the large diameter section and the lower small diameter section are coaxially arranged and are an integrated structure, and the magnet is fixedly connected to the upper side of the upper small diameter section.

[0008] Furthermore, a sealing cap is provided at the upper end of the groove, and the sealing cap includes a cap body and a retaining ring integrally formed at the upper end of the cap body, the cap body is threadedly connected to the notch of the groove, and the retaining ring and the body are stopped downward.

[0009] Furthermore, the upper channel is in an inverted "√"-shaped structure, the bend of the upper channel has a smooth transition, and the communication position between the upper channel and the working piston hole is located above the communication position between the upper channel and the control piston hole.

[0010] Furthermore, the lower channel is in a "√"-shaped structure, the bend of the lower channel has a smooth transition, and the communication position between the lower channel and the working piston hole is located below the communication position between the lower channel and the control piston hole.

[0011] Furthermore, the control piston includes a column and a first piston and a second piston arranged on the column, the upper oil inlet is provided with an upper oil inlet pipe, the lower oil inlet is provided with a lower oil inlet pipe, the upper oil outlet is provided with an upper oil outlet pipe, and the lower oil outlet is provided with a lower oil outlet pipe.

[0012] The present invention provides a highly sealed dual-line distributor, which has the following beneficial effects compared with the prior art: The high-sealing double-wire distributor of the present invention is provided with a groove located outside the working piston hole on the main body, and a reed switch is provided in the groove. During the upward movement of the working piston, the reed in the reed switch is magnetized, the contacts of the reed attract each other, the circuit is turned on, and the indicator light is turned on. During the downward movement of the working piston, the reed of the reed switch is demagnetized, the demagnetized reed is disconnected, the circuit is disconnected, and the indicator light is turned off. By observing whether the indicator light is intermittently lit, it can be judged whether the double-wire distributor is working normally. The present invention does not need to provide a sliding hole in the oil chamber that is coaxial with the working piston and is used to install the indicator rod, so that the distributor has good sealing performance.

[0013] The high-sealing double-line distributor of the present invention improves the channel entering the working piston hole so that the oil enters the upper end of the working piston hole along the oblique downward direction, and enters the lower end of the working piston hole along the oblique upward direction. In addition to being squeezed by the oil entering the working piston hole, the working piston is also affected by the inclined force of the oil in the upper and lower channels, making it more responsive and improving the oil output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a high-sealing double-line distributor in the prior art; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 It is a circuit diagram of a battery, an indicator light and a reed switch in a high-sealing two-wire distributor of the present invention; In the figure: 1. body; 2. working piston hole; 3. control piston hole; 4. upper oil inlet; 5. lower oil inlet; 6. upper oil inlet pipe; 7. lower oil inlet pipe; 8. upper oil outlet; 9. lower oil outlet; 10. upper oil outlet pipe; 11. lower oil outlet pipe; 12. working piston; 121. upper small diameter section; 122. large diameter section; 123. lower small diameter section; 13. magnet; 14. groove; 15. sealing cap; 16. reed switch; 17. control piston; 18. upper channel; 19. lower channel. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: The specific embodiment of the high sealing double-line distributor of the present invention is as follows Figures 1 to 3As shown, it includes a body 1, a working piston hole 2 and a control piston hole 3 are provided in the body 1, a working piston 12 is guided and assembled in the working piston hole 2, a control piston 17 is guided and assembled in the control piston hole 3, the upper and lower ends of the working piston hole 2 are connected with the control piston hole 3 through an upper channel 18 and a lower channel 19 respectively, an upper oil inlet 4 and a lower oil inlet 5 are provided on the body 1 which are connected with the upper and lower ends of the control piston hole 3 respectively, an upper oil outlet 8 and a lower oil outlet 9 are provided on the body 1 which are connected with the middle part of the control piston hole 3 respectively, a groove 14 is provided on the body 1 which is located on the upper side of the working piston hole 2, a reed switch 16 is provided in the groove 14, an indicator light and a battery are provided on the body 1, the battery, the indicator light and the reed switch 16 are connected in series through a wire, a magnet 13 is provided on the upper end of the working piston 12, and when the working piston 12 moves upward, the magnet 13 is used to magnetize the reed of the reed switch 16 so that the reed is attracted to conduct the circuit.

[0016] The groove 14 is a circular groove, which is coaxially arranged with the working piston hole 2. The inner diameter of the circular groove is equal to the inner diameter of the working piston hole 2. The reed switch 16 is located at the bottom center of the circular groove. The working piston 12 includes an upper small diameter section 121, a large diameter section 122 and a lower small diameter section 123. The outer diameter of the large diameter section 122 is equal to the inner diameter of the working piston hole 2. The upper small diameter section 121, the large diameter section 122 and the lower small diameter section 123 are coaxially arranged and are an integrated structure. The magnet 13 is fixedly connected to the upper side of the upper small diameter section 121. A sealing cap 15 is provided at the upper end of the groove 14. The sealing cap 15 includes a cap body and a retaining ring integrally formed at the upper end of the cap body. The cap body is threadedly connected to the notch of the groove 14, and the retaining ring and the body 1 are stopped downward.

[0017] The upper channel 18 is in an inverted “√” shape, the bend of the upper channel 18 is smoothly transitioned, and the communication position of the upper channel 18 and the working piston hole 2 is located above the communication position of the upper channel 18 and the control piston hole 3. The lower channel 19 is in a “√” shape, the bend of the lower channel 19 is smoothly transitioned, and the communication position of the lower channel 19 and the working piston hole 2 is located below the communication position of the lower channel 19 and the control piston hole 3.

[0018] The control piston 17 includes a column and a first piston and a second piston arranged on the column. The upper oil inlet 4 is provided with an upper oil inlet pipe 6, the lower oil inlet 5 is provided with a lower oil inlet pipe 7, the upper oil outlet 8 is provided with an upper oil outlet pipe 10, and the lower oil outlet 9 is provided with a lower oil outlet pipe 11.

[0019] The high-sealing dual-line distributor of the present invention is provided with a groove 14 on the main body 1 located outside the working piston hole 2, and a reed switch is provided in the groove 14. During the upward movement of the working piston 12, the reed in the reed switch is magnetized, the contacts of the reed attract each other, the circuit is turned on, and the indicator light is turned on. During the downward movement of the working piston 12, the reed of the reed switch is demagnetized, the demagnetized reed is disconnected, the circuit is disconnected, and the indicator light goes out. By observing whether the indicator light is intermittently lit, it can be judged whether the dual-line distributor is working normally. The present invention does not need to provide a sliding hole coaxial with the working piston 12 in the oil chamber, so that the distributor has good sealing performance.

[0020] The high-sealing double-line distributor of the present invention improves the channel entering the working piston hole 2 so that the oil enters the upper end of the working piston hole 2 along the oblique downward direction, and enters the lower end of the working piston hole 2 along the oblique upward direction. In addition to being squeezed by the oil entering the working piston hole 2, the working piston 12 is also subjected to the oblique force of the oil in the upper and lower channels 19, making it more responsive and improving the oil output efficiency.

[0021] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly sealed dual-line distributor, characterized in that: It includes a main body, which is provided with a working piston hole and a control piston hole. The working piston hole is guided and assembled with a working piston, and the control piston hole is guided and assembled with a control piston. The upper and lower ends of the working piston hole are connected with the control piston hole through an upper channel and a lower channel respectively. The main body is provided with an upper oil inlet and a lower oil inlet respectively connected with the upper and lower ends of the control piston hole, and the main body is provided with an upper oil outlet and a lower oil outlet respectively connected with the middle of the control piston hole. The main body is provided with a groove located on the upper side of the working piston hole, and a reed switch is provided in the groove. The main body is provided with an indicator light and a battery. The battery, the indicator light and the reed switch are connected in series through a wire. A magnet is provided at the upper end of the working piston. When the working piston moves upward, the magnet is used to magnetize the reed of the reed switch so that the reed is attracted to conduct the circuit.

2. The high-sealing double-line distributor according to claim 1, characterized in that: The groove is a circular groove, which is coaxially arranged with the working piston hole. The inner diameter of the circular groove is equal to the inner diameter of the working piston hole, and the reed switch is located at the bottom center of the circular groove.

3. The high-sealing double-line distributor according to claim 2, characterized in that: The working piston comprises an upper small diameter section, a large diameter section and a lower small diameter section, the outer diameter of the large diameter section is equal to the inner diameter of the working piston hole, the upper small diameter section, the large diameter section and the lower small diameter section are coaxially arranged and are an integrated structure, and the magnet is fixedly connected to the upper side of the upper small diameter section.

4. The high-sealing double-line distributor according to claim 2, characterized in that: A sealing cap is provided at the upper end of the groove, and the sealing cap comprises a cap body and a retaining ring integrally formed at the upper end of the cap body. The cap body is threadedly connected to the notch of the groove, and the retaining ring and the body are stopped downward.

5. The high-sealing dual-line distributor according to claim 1, characterized in that: The upper channel is in an inverted "√" shape, the bend of the upper channel has a smooth transition, and the connection position between the upper channel and the working piston hole is located above the connection position between the upper channel and the control piston hole.

6. The high-sealing dual-line distributor according to claim 5, characterized in that: The lower channel is in a "√"-shaped structure, the bend of the lower channel has a smooth transition, and the communication position between the lower channel and the working piston hole is located below the communication position between the lower channel and the control piston hole.

7. The high-sealing dual-line distributor according to claim 1, characterized in that: The control piston includes a column and a first piston and a second piston arranged on the column. The upper oil inlet is provided with an upper oil inlet pipe, the lower oil inlet is provided with a lower oil inlet pipe, the upper oil outlet is provided with an upper oil outlet pipe, and the lower oil outlet is provided with a lower oil outlet pipe.

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