A line break alarm

Abstract

The utility model relates to a kind of pipeline circuit breaker alarm, including mutually coordinated alarm (1) and back pressure valve (2), alarm (1) includes valve body one, the two sides of valve body one are first oil inlet (1a) and oil outlet (1b) respectively, the end of valve body one close to oil outlet (1b) is equipped with adjusting cavity (101), adjusting cavity (101) is equipped with piston (102), adjusting spring (103), adjusting seat one (104), O ring one (105) and steel ball (106);Valve body one is equipped with with the plunger one (107) of cooperation with transverse cavity, sealing gasket (108), plunger spring one (109), adjusting seat two (110) and spring seat (111);First oil inlet (1a) is connected with oil outlet (1b) by pipeline through adjusting cavity (101).The utility model has the advantages of discovering leakage point in time, ensuring that lubricant can be reached lubrication site as number, improve lubrication effect.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline monitoring and alarm equipment, and in particular to a pipeline circuit breaker alarm. Background Technology

[0002] In a lubrication system, although the outlet of a dual-line distributor can ensure normal oil output and lubricate the target point, the lubrication effect will be greatly reduced if the intermediate transmission pipeline leaks, and it may even affect the normal and stable operation of the equipment.

[0003] Currently, most leak detection efforts focus on improving the accuracy of leak point location, neglecting the timely detection and control of leaking pipelines. Given the extremely long lengths of modern pipelines, once a leak is confirmed, it's crucial to locate the specific leak point and issue an alarm promptly to prevent further damage. Traditional methods typically involve installing sensors at various leak-prone locations, which can indeed provide timely warnings to some extent. However, due to the adhesive properties of the lubricating oil transported in pipelines, and the difficulty in cleaning these sensors over time, their detection sensitivity decreases, potentially rendering them inaccurate in their warnings. Utility Model Content

[0004] The purpose of this invention is to solve the problems of untimely pipeline alarms and low accuracy of sensor warnings in existing systems. It provides a pipeline circuit breaker alarm to monitor critical parts of the machine or parts equipped with hoses, promptly detect abnormal leaks, and ensure that the lubricant output from the distributor reaches the lubrication points in full, thereby improving the lubrication effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipeline circuit breaker alarm includes an alarm and a back pressure valve that work together. The alarm is located at the outlet of the distributor, and the back pressure valve is located at the inlet of the lubrication point.

[0007] The alarm includes a valve body, one side of which is a first oil inlet and the other side is an oil outlet. A vertical adjustment chamber is provided at the end of the valve body near the oil outlet. A matching piston is provided in the adjustment chamber. An adjustment spring is sleeved on the piston rod. The upper end of the adjustment spring is connected to an adjustment seat, which is connected to the adjustment chamber. The piston rod passes vertically upward through the adjustment seat. The lower part of the piston contacts the inner wall of the adjustment chamber through an O-ring. A steel ball is also connected to the bottom of the piston.

[0008] The valve body is equipped with a plunger that cooperates with the transverse cavity. The head of the plunger faces the first oil inlet, and a sealing gasket is provided between the head and the inner wall of the cavity of the valve body. The rod of the plunger is fitted with a plunger spring. One end of the plunger spring is embedded in the adjusting seat, and the other end is connected to the spring seat. The spring seat and the adjusting seat are respectively located at the beginning and end of the rod of the plunger.

[0009] The first oil inlet is connected to the bottom of the regulating chamber via an internal pipeline, and the bottom of the regulating chamber is then connected to the oil outlet via an internal pipeline.

[0010] The back pressure valve includes a valve body two. One side of the valve body two is set as a second oil inlet and the other side is set as a lubrication port. The second oil inlet is connected to the oil outlet of the valve body one through a pipeline, and the lubrication port is connected to the lubrication point through a pipeline.

[0011] Furthermore, the valve body two is provided with a plunger two that cooperates with the transverse cavity. The plunger two includes a short rod section, a flared section and a long rod section in sequence. The short rod section is located near the second oil inlet. An O-ring two is provided between the flared section and the inner wall of the cavity of the valve body two. A plunger spring two is sleeved on the long rod section. One end of the plunger spring two abuts against the stepped platform formed between the flared section and the long rod section, and the other end abuts against the stepped platform inside the cavity of the valve body two. The axes of the short rod section, the flared section, the long rod section, the O-ring two and the plunger spring two are all coincident with the axis of the valve body two.

[0012] Furthermore, the piston includes a connected piston rod and a piston block, the diameter of the piston rod being smaller than the diameter of the piston block, the upper end of the adjusting spring being connected to the adjusting seat and the lower end abutting against the stepped platform between the piston rod and the piston block, and an O-ring being disposed between the piston block and the inner wall of the adjusting cavity.

[0013] Furthermore, the steel ball is riveted to the center of the lower surface of the piston block, and the axes of the piston rod, piston block, adjusting spring, O-ring one, and the center of the steel ball all coincide with the axis of the adjusting cavity.

[0014] Furthermore, the axis of the regulating cavity is perpendicular to the axis of the transverse cavity of the valve body.

[0015] Furthermore, the valve body includes a straight connector and a right-angle connector, and a combined sealing gasket is provided at the connection between the straight connector and the right-angle connector, and the adjustment cavity is located inside the right-angle connector.

[0016] Furthermore, the valve body two includes a straight connector two and a straight connector three, and a combined sealing gasket two is provided at the connection between the straight connector two and the straight connector three.

[0017] Furthermore, the cross-sectional area of ​​the head of the plunger gradually increases from the side closer to the first oil inlet to the side farther away from the first oil inlet, and the cross-sectional area of ​​the rod of the plunger is smaller than the minimum cross-sectional area of ​​its head.

[0018] Compared with the prior art, the advantages of this utility model are as follows:

[0019] (1) The one-way valve assembly at the first and second oil inlets of this utility model adopts a soft seal, which has excellent reverse sealing performance and pressure holding performance;

[0020] (2) The pressure of the back pressure valve assembly of this utility model can be selected, and it is suitable for pipelines of different lengths, thus improving its applicability.

[0021] (3) The piston and steel ball of this utility model are riveted together, realizing the one-way valve function and reducing the processing difficulty of the mating parts;

[0022] (4) The device of this utility model can detect and provide early warning in a timely manner, ensuring that the lubricant output by the distributor can reach the lubrication part in full, thus improving the lubrication effect. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the pipeline circuit breaker alarm of this utility model;

[0024] Figure 2 This is a structural diagram of the back pressure valve of the pipeline circuit breaker alarm of this utility model;

[0025] Figure 3 This is a schematic diagram showing the alarm and back pressure valve working together according to this utility model;

[0026] Figure 4 This is a schematic diagram of an external proximity switch or limit switch connected to the alarm in this embodiment;

[0027] Figure 5 This is a schematic diagram of the plunger structure of this utility model. Detailed Implementation Example

[0028] To make this utility model clearer, the following description, in conjunction with the accompanying drawings, further illustrates a pipeline circuit breaker alarm of this utility model. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0029] See Figure 1 and Figure 2 A pipeline circuit breaker alarm includes an alarm 1 and a back pressure valve 2 that cooperate with each other. The alarm 1 is located at the outlet of the distributor, and the back pressure valve 2 is located at the inlet of the lubrication point. Its characteristic is that:

[0030] The alarm 1 includes a valve body, one side of which is a first oil inlet 1a and the other side is an oil outlet 1b. A vertical adjustment chamber 101 is provided at one end of the valve body near the oil outlet 1b. The axis of the adjustment chamber 101 is perpendicular to the axis of the transverse chamber of the valve body.

[0031] The adjusting cavity 101 is provided with a matching piston 102. The piston 102 includes a connected piston rod 102a and a piston block 102b. The diameter of the piston rod 102a is smaller than the diameter of the piston block 102b. An adjusting spring 103 is sleeved on the piston rod 102a. The upper end of the adjusting spring 103 is connected to the adjusting seat 104, and the lower end abuts against the stepped platform between the piston rod 102a and the piston block 102b.

[0032] The adjusting seat 104 is connected to the adjusting cavity 101. The piston rod 102a passes vertically upward through the adjusting seat 104. An O-ring 105 is provided between the piston block 102b and the inner wall of the adjusting cavity 101. A steel ball 106 is riveted to the bottom center of the piston block 102b.

[0033] The valve body is provided with a plunger 107 that cooperates with the transverse cavity. The head of the plunger 107 faces the first oil inlet 1a, and a sealing gasket 108 is provided between the head and the inner wall of the cavity of the valve body. A plunger spring 109 is sleeved on the rod of the plunger 107. One end of the plunger spring 109 is embedded in the adjusting seat 110 and the other end is connected to the spring seat 111. The spring seat 111 and the adjusting seat 110 are respectively located at the beginning and end of the rod of the plunger 107.

[0034] The first oil inlet 1a is connected to the bottom of the regulating cavity 101 through an internal pipeline, and the bottom of the regulating cavity 101 is connected to the oil outlet 1b through an internal pipeline.

[0035] See Figure 2 , Figure 3 and Figure 5 The back pressure valve 2 includes a valve body 2. One side of the valve body 2 is set as a second oil inlet 2a and the other side is set as a lubrication port 2b. The second oil inlet 2a is connected to the oil outlet 1b of the valve body 1 through a pipeline, and the lubrication port 2b is connected to the lubrication point through a pipeline.

[0036] The valve body 2 is equipped with a plunger 21 that mates with the transverse cavity. The plunger 21 includes a short rod section 21a, a flared section 21b, and a long rod section 21c. The short rod section 21a is located near the second oil inlet 2a. An O-ring 22 is provided between the flared section 21b and the inner wall of the cavity of the valve body 2. A plunger spring 23 is fitted on the long rod section 21b. One end of the plunger spring 23 rests on the stepped platform formed between the flared section 21b and the long rod section 21c, and the other end rests on the stepped platform inside the cavity of the valve body 2. The axes of the short rod section 21a, the flared section 21b, the long rod section 21c, the O-ring 22, and the plunger spring 23 all coincide with the axis of the valve body 2.

[0037] In this embodiment, valve body one includes a straight connector one 112 and a right-angle connector 113, and a combined sealing gasket one 114 is provided at the connection between the straight connector one 112 and the right-angle connector 113, and the adjusting cavity 101 is located in the right-angle connector 113; valve body two includes a straight connector two 24 and a straight connector three 25, and a combined sealing gasket two 26 is provided at the connection between the straight connector two 24 and the straight connector three 25.

[0038] See Figure 3 and Figure 4 When in normal operation, the pipeline pressure between alarm 1 and back pressure valve 2 is maintained by back pressure valve 2. At this time, piston 102 on alarm 1 is always in the extended position and remains there, indicating that the pipeline is normal. Specifically, lubricant enters from the first oil inlet 1a and passes through the one-way valve assembly consisting of plunger 107, sealing gasket 108, plunger spring 109, spring seat 111, and adjusting seat 110, then acts on steel ball 106. As it tries to overcome the force of the adjusting spring, steel ball 106 leaves the ball seat, and lubricant fills the pipeline between alarm 1 and back pressure valve 2. At this time, internal pressure P begins to build up. Before reaching the opening pressure of plunger 21, the system generates high pressure, pushing piston 102 on alarm 1 to continue extending. When piston 102 is visually extended, the system is working normally.

[0039] In addition, see Figure 4 An adjustment seat is installed on the right-angle connector 113, which can be connected to an external proximity switch or limit switch 3 to monitor whether the piston 102 extends. If the piston 102 extends, the switch outputs a signal, and the system is working normally.

[0040] See Figure 3 If a rupture or leak occurs in the pipeline between alarm 1 and back pressure valve 2, the pipeline pressure drops. Simultaneously, adjusting spring 103 causes steel ball 106 to return to its seat inside right-angle connector 113, and piston 102 retracts under spring force. Visual inspection of piston 102 retraction indicates a pipeline leak. Alternatively, if the switch fails to output a signal within a set time, the lubrication monitor will issue an alarm, simultaneously shutting down the system or stopping the pump to prevent further lubricant leakage.

[0041] When the machine has been idle for an extended period, even minor leaks and temperature changes in the piping can cause pressure fluctuations within the piping. If the lubrication system is activated at this time, an abnormal signal will be emitted. This phenomenon also occurs when the piping containing the alarm is not fully filled with lubricant. These are normal occurrences. Simply fill the piping and repeat the system startup process a few times to eliminate the abnormal signal and return the machine to normal operation.

[0042] The device of this invention can detect leaks in a timely manner, improve the accuracy of early warning, facilitate staff to take effective measures to deal with leaks, ensure normal lubrication, and improve lubrication effect.

[0043] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A pipeline circuit breaker alarm, comprising an alarm (1) and a back pressure valve (2) that cooperate with each other, wherein the alarm (1) is located at the outlet of a distributor and the back pressure valve (2) is located at the inlet of a lubrication point, characterized in that: The alarm (1) includes a valve body, one side of which is a first oil inlet (1a) and the other side is an oil outlet (1b). The valve body has a vertical adjustment chamber (101) at one end near the oil outlet (1b). A matching piston (102) is provided in the adjustment chamber (101). An adjustment spring (103) is sleeved on the rod of the piston (102). The upper end of the adjustment spring (103) is connected to the adjustment seat (104). The adjustment seat (104) is connected to the adjustment chamber (101). The rod of the piston (102) passes vertically upward through the adjustment seat (104). The lower part of the piston (102) contacts the inner wall of the adjustment chamber (101) through an O-ring (105). A steel ball (106) is also connected to the bottom of the piston (102). The valve body is provided with a plunger (107) that cooperates with the transverse cavity. The head of the plunger (107) faces the first oil inlet (1a), and a sealing gasket (108) is provided between its head and the inner wall of the cavity of the valve body. The rod of the plunger (107) is fitted with a plunger spring (109). One end of the plunger spring (109) is embedded in the adjusting seat (110), and the other end is connected to the spring seat (111). The spring seat (111) and the adjusting seat (110) are respectively located at the beginning and end of the rod of the plunger (107). The first oil inlet (1a) is connected to the bottom of the regulating cavity (101) through an internal pipeline, and the bottom of the regulating cavity (101) is connected to the oil outlet (1b) through an internal pipeline.

2. The pipeline circuit breaker alarm according to claim 1, characterized in that: The back pressure valve (2) includes a valve body two. One side of the valve body two is set as a second oil inlet (2a) and the other side is set as a lubrication port (2b). The second oil inlet (2a) is connected to the oil outlet (1b) of the valve body one through a pipeline, and the lubrication port (2b) is connected to the lubrication point through a pipeline.

3. The pipeline circuit breaker alarm according to claim 2, characterized in that: The valve body 2 is provided with a plunger 2 (21) that cooperates with the transverse cavity. The plunger 2 (21) includes a short rod section (21a), a flared section (21b) and a long rod section (21c) in sequence. The short rod section (21a) is located near the second oil inlet (2a). An O-ring 2 (22) is provided between the flared section (21b) and the inner wall of the cavity of the valve body 2. A plunger spring 2 (23) is sleeved on the long rod section (21c). One end of the plunger spring 2 (23) abuts against the stepped platform formed between the flared section (21b) and the long rod section (21c), and the other end abuts against the stepped platform inside the cavity of the valve body 2. The axes of the short rod section (21a), the flared section (21b), the long rod section (21c), the O-ring 2 (22), and the plunger spring 2 (23) all coincide with the axis of the valve body 2.

4. The pipeline circuit breaker alarm according to any one of claims 1 to 3, characterized in that: The piston (102) includes a connected piston rod (102a) and a piston block (102b). The diameter of the piston rod (102a) is smaller than the diameter of the piston block (102b). The upper end of the adjusting spring (103) is connected to the adjusting seat (104), and the lower end abuts against the stepped platform between the piston rod (102a) and the piston block (102b). The O-ring (105) is located between the piston block (102b) and the inner wall of the adjusting cavity (101).

5. The pipeline circuit breaker alarm according to claim 4, characterized in that: The steel ball (106) is riveted to the center of the lower surface of the piston block (102b), and the axes of the piston rod (102a), piston block (102b), adjusting spring (103), O-ring 1 (105) and the center of the steel ball (106) are all coincident with the axis of the adjusting cavity (101).

6. The pipeline circuit breaker alarm according to any one of claims 1 to 3, characterized in that: The axis of the regulating cavity (101) is perpendicular to the axis of the transverse cavity of the valve body.

7. The pipeline circuit breaker alarm according to any one of claims 1 to 3, characterized in that: The valve body includes a straight connector (112) and a right-angle connector (113), and a combined sealing gasket (114) is provided at the connection between the straight connector (112) and the right-angle connector (113). The adjustment cavity (101) is located inside the right-angle connector (113).

8. The pipeline circuit breaker alarm according to claim 2 or 3, characterized in that: The valve body 2 includes a straight connector 2 (24) and a straight connector 3 (25), and a combined sealing gasket 2 (26) is provided at the connection between the straight connector 2 (24) and the straight connector 3 (25).

9. The pipeline circuit breaker alarm according to any one of claims 1 to 3, characterized in that: The cross-sectional area of ​​the head of the plunger (107) gradually increases from the side closer to the first oil inlet (1a) to the side farther away from the first oil inlet (1a), and the cross-sectional area of ​​the rod of the plunger (107) is smaller than the minimum cross-sectional area of ​​its head.

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