Multi-channel connection device with cut-off pressure

Abstract

The utility model relates to the technical field of pipeline protection, in particular to a multi-channel pressure connecting device with a stop function, which comprises a rack, a pipe body is inserted into the inner wall of the rack, a stop valve is mounted on the pipe body, a positioning nut is in threaded connection with the pipe body, one side of the pipe body is fixedly connected with a limiting sleeve, and the limiting sleeve is fixedly connected with the stop valve. And the inner wall of the limiting sleeve is fixedly connected with an adjusting air cylinder, the driving end of the adjusting air cylinder is fixedly connected with a mounting plate, the surface of the mounting plate is fixedly connected with a supporting rod, the supporting rod is slidably connected with a guiding sleeve, and the upper surface of the limiting sleeve is fixedly connected with a positioning plate. According to the scheme, the buffer rods, the protection blocks and the springs are matched with one another, the displacement energy of the pipeline is absorbed through self deformation, rigid collision between the pipeline and the supporting structure is reduced, the risk that the pipeline is damaged due to collision is reduced, potential safety hazards of equipment in use are reduced, and normal use of the equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline protection, in particular to a multi-channel connection device with a cut-off pressure. Background Art

[0002] A multi-channel connection device with a cut-off pressure is a device used to connect multiple channels. It can automatically cut off the flow of fluid (liquid or gas) in the channel when the pressure in the channel reaches a specific cut-off pressure value. With the development of society, multi-channel connection devices with a cut-off pressure are widely used.

[0003] At present, in the use of most connection devices, when the cut-off pressure valve detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the flow rate of the fluid will drop sharply from a stable value to zero in a short time. The momentum of the water flow will cause the pressure in the area near the valve to rise instantly, resulting in the pipeline shaking, and there are certain safety hazards, so improvements are needed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art that in the use of most connection devices, when the cut-off pressure valve detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the flow rate of the fluid will drop sharply from a stable value to zero in a short time. The momentum of the water flow will cause the pressure in the area near the valve to rise instantly, resulting in the pipeline shaking, and there are certain safety hazards. A multi-channel connection device with a cut-off pressure is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A multi-channel connection device with a cut-off pressure, including a frame. A pipe body is inserted into the inner wall of the frame. A cut-off valve is installed on the pipe body. A positioning nut is threadedly connected to the pipe body. A limiting sleeve is fixedly connected to one side of the pipe body. An adjusting cylinder is fixedly connected to the inner wall of the limiting sleeve. A driving end of the adjusting cylinder is fixedly connected to a mounting plate. A support rod is fixedly connected to the surface of the mounting plate. A guiding sleeve is slidably connected to the support rod. A positioning plate is fixedly connected to the upper surface of the limiting sleeve. A guide rod is slidably connected to the inner wall of the positioning plate. An upper end of the guide rod is fixedly connected to a protection block. A spring is fixedly connected to the lower surface of the protection block. The spring is sleeved on the guide rod. A lower end of the spring is fixedly connected to the upper surface of the positioning plate. In this scheme, through the mutual cooperation of the buffer rod, the protection block and the spring, the energy of the pipeline displacement is absorbed through its own deformation, reducing the rigid collision between the pipeline and the support structure, reducing the risk of pipeline damage due to collision, reducing the safety hazards in the use of the equipment, and facilitating the normal use of the equipment.

[0006] Preferably, the longitudinal section of the protection block is U-shaped, which is convenient for wrapping the pipeline.

[0007] Preferably, a buffer rod is fixedly connected to the inner wall of the protection block. The buffer rod is a rubber rod, which can stably absorb the shaking force of the pipeline.

[0008] Preferably, the number of the buffer rods is multiple, and the multiple buffer rods are arranged at equal intervals.

[0009] Preferably, the number of the adjusting cylinders is two, and the two adjusting cylinders are arranged in a mirror image. Before use, the limiting sleeve is sleeved on the support rod, and the limiting sleeve is pulled to drive the positioning plate, the guide rod and the protection block to displace. According to the state of the pipeline, the installation quantity of the protection block is selected. After the placement is completed, the locking bolt is tightened to complete the assembly of the limiting sleeve, the positioning plate and the protection block. Then the pipeline is installed on the pipe body. After the installation is completed, the adjusting cylinder is controlled to pull the mounting plate and the support rod upward. Then the limiting sleeve, the positioning plate and the protection block move accordingly, and the protection block is immediately sleeved on the pipeline. When the stop valve detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the pipeline connection shakes. The protection block cooperates with the buffer rod to effectively absorb the shaking force of the pipeline, ensuring the stable use of the pipeline.

[0010] Preferably, a stop block is fixedly connected to the lower end of the guide rod, and the edge of the stop block is rounded, effectively limiting the displacement of the guide rod.

[0011] Preferably, a locking bolt is threadedly connected to the inner wall of the guiding sleeve, and the locking bolt is located below the support rod, facilitating the limitation of the guiding sleeve, the positioning plate and the protection block.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] In the present utility model, before use, the limiting sleeve is sleeved on the support rod, and the limiting sleeve is pulled to drive the positioning plate, the guide rod and the protection block to displace. According to the state of the pipeline, the installation quantity of the protection block is selected. After the placement is completed, the locking bolt is tightened to complete the assembly of the limiting sleeve, the positioning plate and the protection block. Then the pipeline is installed on the pipe body. After the installation is completed, the adjusting cylinder is controlled to pull the mounting plate and the support rod upward. Then the limiting sleeve, the positioning plate and the protection block move accordingly, and the protection block is immediately sleeved on the pipeline. When the stop valve detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the pipeline connection shakes. The protection block cooperates with the buffer rod to effectively absorb the shaking force of the pipeline, ensuring the stable use of the pipeline. In this scheme, the buffer rod, the protection block and the spring cooperate with each other, and absorb the energy of the pipeline displacement through their own deformation, reducing the rigid collision between the pipeline and the support structure, reducing the risk of pipeline damage caused by collision, reducing the potential safety hazard in the use of the equipment, and facilitating the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of a multi-channel connection device with a cut-off pressure proposed by the present utility model;

[0015] Figure 2 The present utility model provides a structural schematic diagram of part A in a multi-channel cut-off pressure connection device; Figure 1 of which;

[0016] Figure 3 The present utility model provides a bottom view structural schematic diagram of a multi-channel cut-off pressure connection device;

[0017] Figure 4 The present utility model provides a structural schematic diagram of part B in a multi-channel cut-off pressure connection device; Figure 3 of which;

[0018] Figure 5 The present utility model provides a structural schematic diagram of part C in a multi-channel cut-off pressure connection device; Figure 3 of which;

[0019] Legend:

[0020] 1. Frame; 2. Pipe body; 3. Cut-off valve; 4. Positioning nut; 5. Adjusting cylinder; 6. Support rod; 7. Protection block; 8. Buffer rod; 9. Guide rod; 10. Spring; 11. Limit sleeve; 12. Mounting plate; 13. Positioning plate; 14. Guide sleeve; 15. Locking bolt; 16. Stopper. Specific implementation mode

[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: a multi-channel cut-off pressure connection device, including a frame 1, a pipe body 2 is inserted into the inner wall of the frame 1, a cut-off valve 3 is installed on the pipe body 2, a positioning nut 4 is threadedly connected to the pipe body 2, a limit sleeve 11 is fixedly connected to one side of the pipe body 2, an adjusting cylinder 5 is fixedly connected to the inner wall of the limit sleeve 11, a mounting plate 12 is fixedly connected to the driving end of the adjusting cylinder 5, a support rod 6 is fixedly connected to the surface of the mounting plate 12, a guide sleeve 14 is slidably connected to the support rod 6, a positioning plate 13 is fixedly connected to the upper surface of the limit sleeve 11, a guide rod 9 is slidably connected to the inner wall of the positioning plate 13, a protection block 7 is fixedly connected to the upper end of the guide rod 9, a spring 10 is fixedly connected to the lower surface of the protection block 7, the spring 10 is sleeved on the guide rod 9, and the lower end of the spring 10 is fixedly connected to the upper surface of the positioning plate 13. In this solution, through the mutual cooperation of the buffer rod 8, the protection block 7 and the spring 10, the energy of the pipeline displacement is absorbed through its own deformation, reducing the rigid collision between the pipeline and the support structure, reducing the risk of pipeline damage caused by collision, reducing the potential safety hazards during the use of the equipment, and facilitating the normal use of the equipment.

[0022] Specifically, the longitudinal section of the protection block 7 is U-shaped, which is convenient for wrapping the pipeline.

[0023] In this embodiment: A buffer rod 8 is fixedly connected to the inner wall of the protection block 7. The buffer rod 8 is a rubber rod, which can stably absorb the shaking force of the pipeline.

[0024] Specifically, the number of buffer rods 8 is multiple, and the multiple buffer rods 8 are arranged at equal intervals.

[0025] In this embodiment: The number of adjusting cylinders 5 is two, and the two adjusting cylinders 5 are arranged in a mirror image. Before use, the limiting sleeve 11 is sleeved on the support rod 6, and the limiting sleeve 11 is pulled to drive the positioning plate 13, the guide rod 9 and the protection block 7 to displace. According to the state of the pipeline, the installation quantity of the protection block 7 is selected. After placement, the locking bolt 15 is tightened to complete the assembly of the limiting sleeve 11, the positioning plate 13 and the protection block 7. Then the pipeline is installed on the pipe body 2. After installation, the adjusting cylinder 5 is controlled to pull the mounting plate 12 and the support rod 6 upwards. Then the limiting sleeve 11, the positioning plate 13 and the protection block 7 move accordingly, and the protection block 7 is immediately sleeved on the pipeline. When the stop valve 3 detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the pipeline connection shakes. The protection block 7 cooperates with the buffer rod 8 to effectively absorb the shaking force of the pipeline, ensuring the stable use of the pipeline.

[0026] Specifically, a stop block 16 is fixedly connected to the lower end of the guide rod 9, and the edge of the stop block 16 is rounded, effectively restricting the displacement of the guide rod 9.

[0027] Specifically, a locking bolt 15 is threadedly connected to the inner wall of the guiding sleeve 14. The locking bolt 15 is located below the support rod 6, facilitating the limitation of the guiding sleeve 14, the positioning plate 13 and the protection block 7.

[0028] Working principle: Before use, the limiting sleeve 11 is sleeved on the support rod 6, and the limiting sleeve 11 is pulled to drive the positioning plate 13, the guide rod 9 and the protection block 7 to displace. According to the state of the pipeline, the installation quantity of the protection block 7 is selected. After placement, the locking bolt 15 is tightened to complete the assembly of the limiting sleeve 11, the positioning plate 13 and the protection block 7. Then the pipeline is installed on the pipe body 2. After installation, the adjusting cylinder 5 is controlled to pull the mounting plate 12 and the support rod 6 upwards. Then the limiting sleeve 11, the positioning plate 13 and the protection block 7 move accordingly, and the protection block 7 is immediately sleeved on the pipeline. When the stop valve 3 detects that the pipeline pressure reaches the cut-off pressure and quickly closes, the pipeline connection shakes. The protection block 7 cooperates with the buffer rod 8 to effectively absorb the shaking force of the pipeline, ensuring the stable use of the pipeline. In this solution, the buffer rod 8, the protection block 7 and the spring 10 cooperate with each other, and absorb the energy of the pipeline displacement through their own deformation, reducing the rigid collision between the pipeline and the support structure, reducing the risk of pipeline damage caused by collision, reducing the potential safety hazards during the use of the equipment, and facilitating the normal use of the equipment.

Claims

1. A multi-channel connection device with a cut-off pressure, comprising a frame (1), characterized in that: A tube body (2) is inserted into the inner wall of the frame (1). A stop valve (3) is installed on the tube body (2). A positioning nut (4) is threadedly connected to the tube body (2). A limiting sleeve (11) is fixedly connected to one side of the tube body (2). An adjusting cylinder (5) is fixedly connected to the inner wall of the limiting sleeve (11). A driving end of the adjusting cylinder (5) is fixedly connected to a mounting plate (12). A support rod (6) is fixedly connected to the surface of the mounting plate (12). A guiding sleeve (14) is slidably connected to the support rod (6). A positioning plate (13) is fixedly connected to the upper surface of the limiting sleeve (11). A guide rod (9) is slidably connected to the inner wall of the positioning plate (13). An upper end of the guide rod (9) is fixedly connected to a protective block (7). A spring (10) is fixedly connected to the lower surface of the protective block (7). The spring (10) is sleeved on the guide rod (9). A lower end of the spring (10) is fixedly connected to the upper surface of the positioning plate (13).

2. The multi-channel connection device with a cut-off pressure according to claim 1, characterized in that: The longitudinal section of the protective block (7) is U-shaped.

3. The multi-channel connection device with a cut-off pressure according to claim 1, characterized in that: A buffer rod (8) is fixedly connected to the inner wall of the protective block (7).

4. The multi-channel connection device with a cut-off pressure according to claim 3, characterized in that: The number of the buffer rods (8) is multiple. The multiple buffer rods (8) are arranged at equal intervals.

5. The multi-channel connection device with a cut-off pressure according to claim 1, characterized in that: The number of the adjusting cylinders (5) is two. The two adjusting cylinders (5) are arranged in a mirror image.

6. A multi-channel connection device with a cut-off pressure, according to claim 1, characterized in that: A lower end of the guide rod (9) is fixedly connected to a stop block (16). The edge of the stop block (16) is rounded.

7. A multi-channel connection device with a cut-off pressure, according to claim 1, characterized in that: A locking bolt (15) is threadedly connected to the inner wall of the guiding sleeve (14). The locking bolt (15) is located below the support rod (6).

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