Automatic cut-off device for hydraulic pipeline

Abstract

The utility model discloses a hydraulic pipeline automatic cut-off device which comprises a cut-off box, installation structures are arranged on the two sides of the cut-off box, a cut-off mechanism is arranged on the top of the cut-off box, and a limiting mechanism is arranged at the bottom of the cut-off box. The hydraulic pipeline cut-off device has the advantages that by arranging the cut-off mechanism, when the hydraulic pipeline cut-off device is used and needs to be cut off, a switch of the first electric push rod is turned on, so that the cut-off plate rotates with the fixing shaft as the center, the bottom of the cut-off plate is connected with the limiting base in a clamped mode, cut-off of the hydraulic pipeline is achieved, and meanwhile the sealing strip is connected with the groove in a clamped mode. According to the cut-off mechanism, leakage at the joint of the cut-off plate and the limiting seat can be prevented, the sealing performance of the cut-off mechanism can be improved, meanwhile, the shock absorption plate and the buffer block are adopted, impact force brought by oil entering the cut-off box can be buffered and damped, and therefore the cut-off plate can be prevented from deforming.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pipelines, in particular to an automatic cut-off device for hydraulic pipelines. Background Art

[0002] Hydraulic systems are widely used in modern industrial equipment, particularly in construction machinery, manufacturing equipment, and automated control systems. Due to their efficient transmission, precise control, and powerful output, hydraulic systems have become an indispensable means of power transmission. As a crucial component of hydraulic systems, the safety and stability of hydraulic pipelines directly impact the overall system's performance. However, hydraulic pipelines can leak or rupture during use due to factors such as aging, overloading, and external impacts. This can lead to hydraulic oil leaks, wasting resources and potentially causing equipment damage or serious safety incidents.

[0003] Hydraulic pipelines refer to pipes that transmit working fluid in hydraulic systems. Compared with pipelines, pipelines are a rationally arranged piping system. When in use, the pipeline joints may leak oil due to loose connections. A shut-off device is required to promptly cut off the transportation of hydraulic oil to avoid waste of hydraulic oil and allow staff to repair the pipeline. However, the existing automatic shut-off device for hydraulic pipelines cannot collect the hydraulic oil dripping from the hydraulic pipeline before shut-off in actual use, which will cause the hydraulic oil to affect the environment. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides an automatic shut-off device for hydraulic pipelines, which has a shut-off mechanism and is used to solve the problem that when the pipeline connection is loose, the pipeline connection will leak oil. The shut-off device will need to cut off the transportation of hydraulic oil in time to avoid waste of hydraulic oil and allow staff to repair the pipeline. However, the existing automatic shut-off device for hydraulic pipelines cannot collect the hydraulic oil dripping from the hydraulic pipeline before cutting off in actual use, which will cause the hydraulic oil to affect the environment.

[0005] The technical solution of the utility model is: an automatic cut-off device for a hydraulic pipeline, comprising a cut-off box, mounting structures are provided on both sides of the cut-off box, a cut-off mechanism is provided on the top of the cut-off box, and a limiting mechanism is provided on the bottom of the cut-off box;

[0006] The cut-off mechanism includes a cut-off plate, a fixed shaft, a collar 1, an electric push rod 1, a mounting seat 1, a mounting seat 2, a collar 2, a shock-absorbing plate, a buffer block and a sealing strip. A mounting box is fixedly installed on the top of the cut-off box, and the front and rear ends of the fixed shaft are fixedly connected to the front and rear inner walls of the mounting box respectively. The cut-off plate is movably sleeved on the outside of the fixed shaft, the mounting seat 1 is fixedly installed on one side inner wall of the mounting box, the collar 1 is movably sleeved on the outside of the mounting seat 1, the collar 1 is fixedly connected to one end of the electric push rod 1, the output end of the electric push rod 1 is fixedly connected to the collar 2, the mounting seat 2 is fixedly installed on one side outer wall of the cut-off plate, and the collar 2 is movably sleeved on the outside of the mounting seat 2.

[0007] Furthermore, a shock-absorbing plate is fixedly mounted on an outer wall of one side of the cut-off plate, and a buffer block is fixedly mounted on the other side of the shock-absorbing plate, wherein the buffer block is an arc-shaped bar.

[0008] Furthermore, the mounting structure includes an oil inlet pipe, an oil outlet pipe and a pressure gauge, one end of the oil inlet pipe is fixedly connected to the outer wall of one side of the cut-off box through a flange, the pressure gauge is fixedly installed on the outer wall of one side of the oil inlet pipe, and one end of the oil outlet pipe is fixedly connected to the outer wall of the other side of the cut-off box through a flange.

[0009] Furthermore, a limit seat is fixedly installed on the bottom inner wall of the cut-off box, a groove is formed on the top of the limit seat, and the bottom of the cut-off plate contacts one side of the limit seat.

[0010] Furthermore, a sealing strip is fixedly mounted on one side outer wall of the cut-off plate, and the sealing strip is position-limitingly plugged into the groove.

[0011] Furthermore, sealing rings are provided inside the two side walls of the cut-off box for installation and sealing between the flange and the cut-off box.

[0012] Furthermore, the limiting mechanism includes an electric push rod 2, an installation box and a clamping block. The installation box is fixedly installed inside the bottom wall of the cut-off box, the electric push rod 2 is fixedly installed at the bottom of the installation box, the output end of the electric push rod 2 is fixedly connected to the clamping block, and the clamping block is clamped to the outer wall of one side of the bottom end of the cut-off plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] By providing a cut-off mechanism, when the hydraulic pipeline needs to be cut off, the switch of the electric push rod is turned on, so that the cut-off plate rotates around the fixed axis, so that the bottom of the cut-off plate is engaged with the limit seat, thereby realizing the cut-off of the hydraulic pipeline. At the same time, the sealing strip is engaged with the groove to prevent leakage at the connection between the cut-off plate and the limit seat, which is beneficial to improving the sealing performance of the cut-off mechanism. At the same time, the shock-absorbing plate and the buffer block are used to buffer and absorb the impact force brought by the oil entering the cut-off box, thereby preventing the cut-off plate from being deformed, which is beneficial to extending the service life of the cut-off plate, thereby timely cutting off the transportation of hydraulic oil, avoiding waste of hydraulic oil, and facilitating the staff to repair the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached figure:

[0017] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 2 It is a main schematic diagram of the utility model;

[0019] Figure 3 This is a side view of the cutoff plate of the present invention;

[0020] Figure 4 This is a top view of the limiting mechanism of the present utility model;

[0021] Figure numerals: 1. cut-off box; 11. sealing ring; 12. mounting box; 13. limit seat; 2. mounting structure; 21. oil inlet pipe; 22. pressure gauge; 23. oil outlet pipe; 3. cut-off mechanism; 31. cut-off plate; 32. fixed shaft; 33. collar 1; 34. electric push rod 1; 35. mounting seat 1; 36. mounting seat 2; 37. collar 2; 38. shock-absorbing plate; 39. buffer block; 30. sealing strip; 4. limit mechanism; 41. electric push rod 2; 42. mounting box; 43. clamping block. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The utility model provides an improved automatic shut-off device for a hydraulic pipeline. Figure 1-4 As shown in the figure, it includes a cut-off box 1, a mounting structure 2 is provided on both sides of the cut-off box 1, a cut-off mechanism 3 is provided on the top of the cut-off box 1, and a limiting mechanism 4 is provided on the bottom of the cut-off box 1;

[0025] The cut-off mechanism 3 includes a cut-off plate 31, a fixed shaft 32, a collar 1 33, an electric push rod 1 34, a mounting seat 1 35, a mounting seat 2 36, a collar 2 37, a shock absorbing plate 38, a buffer block 39 and a sealing strip 30. The top of the cut-off box 1 is fixedly mounted with a mounting box 12. The front and rear ends of the fixed shaft 32 are respectively fixedly connected to the front and rear inner walls of the mounting box 12. The cut-off plate 31 is movably sleeved on the outside of the fixed shaft 32. The mounting seat 1 35 is fixedly mounted on one side inner wall of the mounting box 12. The collar 1 33 is movably sleeved on the mounting seat 1 3 5, the collar 1 33 is fixedly connected to one end of the electric push rod 1 34, the output end of the electric push rod 1 34 is fixedly connected to the collar 2 37, the mounting seat 2 36 is fixedly mounted on the outer wall of one side of the cut-off plate 31, the collar 2 37 is movably sleeved on the outside of the mounting seat 2 36, a shock absorbing plate 38 is fixedly mounted on the outer wall of one side of the cut-off plate 31, and a buffer block 39 is fixedly mounted on the other side of the shock absorbing plate 38. The buffer block 39 is an arc-shaped bar. The bottom inner wall of the cut-off box 1 is fixedly mounted with a limit seat 13, and the top of the limit seat 13 is grooved. The bottom of the cut-off plate 31 contacts one side of the limit seat 13. A sealing strip 30 is fixedly installed on the outer wall of one side of the cut-off plate 31. The sealing strip 30 is limited and plugged into the groove. Sealing rings 11 are provided inside the two side walls of the cut-off box 1 for installation and sealing between the flange and the cut-off box 1. When the cut-off mechanism 3 is provided, when the hydraulic pipeline needs to be cut off, the switch of the electric push rod 34 is turned on, so that the cut-off plate 31 rotates around the fixed shaft 32, so that the bottom of the cut-off plate 31 is engaged with the limit seat 13, and the cut-off mechanism 3 is provided. The hydraulic pipeline is cut off and the sealing strip 30 is engaged with the groove to prevent leakage at the connection between the cut-off plate 31 and the limit seat 13, which is beneficial to improving the sealing performance of the cut-off mechanism 3. At the same time, the shock-absorbing plate 38 and the buffer block 39 are used to buffer and reduce the impact force brought by the oil entering the cut-off box 1, thereby preventing the cut-off plate 31 from deformation, which is beneficial to extending the service life of the cut-off plate 31, thereby timely cutting off the transportation of hydraulic oil, avoiding waste of hydraulic oil, and facilitating the maintenance of the pipeline by staff.

[0026] The mounting structure 2 includes an oil inlet pipe 21, an oil outlet pipe 23 and a pressure gauge 22. One end of the oil inlet pipe 21 is fixedly connected to the outer wall of one side of the cut-off box 1 through a flange. The pressure gauge 22 is fixedly installed on the outer wall of one side of the oil inlet pipe 21, and one end of the oil outlet pipe 23 is fixedly connected to the outer wall of the other side of the cut-off box 1 through a flange. When in use, the oil circuit enters the cut-off box 1 through the oil inlet pipe 21 and is discharged through the oil outlet pipe 23. When it is necessary to cut off, the oil circuit can be cut off by opening the cut-off mechanism 3. The external power supply of the device provides electrical energy for the device, and the device is connected to an external control terminal. The control terminal is electrically connected to the pressure gauge 22, the electric push rod 1 34 and the electric push rod 2 41. When it is found that the pressure in the oil pipe is too high or oil leakage occurs, the electric push rod 1 34 and the electric push rod 2 41 can be driven by the control terminal to achieve the cut-off operation.

[0027] The limiting mechanism 4 includes an electric push rod 2 41, an installation box 42 and a clamping block 43. The installation box 42 is fixedly installed inside the bottom wall of the cut-off box 1, and the electric push rod 2 41 is fixedly installed at the bottom of the installation box 42. The output end of the electric push rod 2 41 is fixedly connected to the clamping block 43, and the clamping block 43 is clamped with the outer wall of one side of the bottom end of the cut-off plate 31. When in use, after the cut-off mechanism 3 completes its work, the switch of the electric push rod 2 41 is turned on, so that the clamping block 43 is clamped with the cut-off plate 31, which can prevent the cut-off plate 31 from loosening after long-term use, thereby limiting the position of the cut-off plate 31, and playing an auxiliary supporting role for the cut-off mechanism 3.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydraulic pipeline automatic shut-off device, comprising a shut-off box (1), characterized in that: Mounting structures (2) are provided on both sides of the cut-off box (1), a cut-off mechanism (3) is provided on the top of the cut-off box (1), and a limiting mechanism (4) is provided on the bottom of the cut-off box (1); The cut-off mechanism (3) comprises a cut-off plate (31), a fixed shaft (32), a collar (33), an electric push rod (34), a mounting seat (35), a mounting seat (36), a collar (37), a shock-absorbing plate (38), a buffer block (39) and a sealing strip (30). A mounting box (12) is fixedly mounted on the top of the cut-off box (1). The front and rear ends of the fixed shaft (32) are respectively fixedly connected to the front and rear inner walls of the mounting box (12). The cut-off plate (31) is movably sleeved on the fixed shaft ( The mounting seat 1 (35) is fixedly mounted on the inner wall of one side of the mounting box (12), the sleeve ring 1 (33) is movably sleeved on the outside of the mounting seat 1 (35), the sleeve ring 1 (33) is fixedly connected to one end of the electric push rod 1 (34), the output end of the electric push rod 1 (34) is fixedly connected to the sleeve ring 2 (37), the mounting seat 2 (36) is fixedly mounted on the outer wall of one side of the cut-off plate (31), and the sleeve ring 2 (37) is movably sleeved on the outside of the mounting seat 2 (36).

2. The automatic shut-off device for hydraulic lines according to claim 1, characterized in that: A shock-absorbing plate (38) is fixedly mounted on the outer wall of one side of the cut-off plate (31), and a buffer block (39) is fixedly mounted on the other side of the shock-absorbing plate (38), wherein the buffer block (39) is an arc-shaped bar.

3. The automatic shut-off device for hydraulic lines according to claim 1, characterized in that: The mounting structure (2) comprises an oil inlet pipe (21), an oil outlet pipe (23) and a pressure gauge (22); one end of the oil inlet pipe (21) is fixedly connected to one side outer wall of the cut-off box (1) via a flange; the pressure gauge (22) is fixedly mounted on one side outer wall of the oil inlet pipe (21); and one end of the oil outlet pipe (23) is fixedly connected to the other side outer wall of the cut-off box (1) via a flange.

4. The automatic shut-off device for hydraulic lines according to claim 1, characterized in that: A limit seat (13) is fixedly mounted on the inner wall of the bottom of the cut-off box (1), a groove is formed on the top of the limit seat (13), and the bottom of the cut-off plate (31) contacts one side of the limit seat (13).

5. The automatic shut-off device for hydraulic lines according to claim 4, characterized in that: A sealing strip (30) is fixedly mounted on one side outer wall of the cut-off plate (31), and the sealing strip (30) is position-limitingly plugged into the groove.

6. The automatic shut-off device for hydraulic lines according to claim 1, characterized in that: Sealing rings (11) are provided inside the two side walls of the cut-off box (1) for installation and sealing between the flange and the cut-off box (1).

7. The automatic shut-off device for hydraulic lines according to claim 1, characterized in that: The limiting mechanism (4) comprises a second electric push rod (41), a mounting box (42) and a clamping block (43); the mounting box (42) is fixedly mounted inside the bottom wall of the cut-off box (1); the second electric push rod (41) is fixedly mounted at the bottom of the mounting box (42); the output end of the second electric push rod (41) is fixedly connected to the clamping block (43); and the clamping block (43) is clamped to an outer wall on one side of the bottom end of the cut-off plate (31).

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