Travel switch device of quick-closing valve of small steam turbine

Abstract

The utility model relates to the field of travel switches, and discloses a travel switch device for a quick-closing valve of a small steam turbine, which comprises a mounting rod, mounting seats are fixedly mounted at two ends of the mounting rod, a plurality of locking holes are formed in the mounting rod, a sliding block is mounted on the mounting rod in a sliding manner, a bolt is arranged on the sliding block, and the locking holes are formed in the bolt. A mounting block is fixedly mounted on the side wall of the sliding block, a rotating shaft is rotatably mounted at the lower end of the mounting block, a connecting block is fixedly mounted at the lower end of the rotating shaft, and a switch body is arranged on the connecting block. The travel switch connecting rod can move more stably, the situation that the collision force is too large and the device is damaged when the travel switch connecting rod moves is prevented, all structures are matched, time is saved, and higher efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the field of travel switches, in particular to a travel switch device for a small steam turbine quick-closing valve. Background Art

[0002] A travel switch is a type of position switch. It is a commonly used low-current master electrical appliance that uses the collision of mechanical moving parts to move its contacts to connect or disconnect the control circuit and achieve a certain control purpose. Usually, this type of switch is used to limit the position or stroke of mechanical movement, so that the moving machine can automatically stop, reverse, change speed or automatically reciprocate at a certain position or stroke.

[0003] Most of the existing travel switches need to be removed and replaced after installation when the working angle or position needs to be changed, which is not convenient. Therefore, a small steam turbine quick-closing valve travel switch device is needed. Utility Model Content

[0004] The utility model aims to provide a small steam turbine quick-closing valve travel switch device, which solves the problems raised in the background technology.

[0005] An embodiment of the present application provides a small steam turbine quick-closing valve travel switch device, including a mounting rod, mounting seats are fixedly installed at both ends of the mounting rod, a plurality of locking holes are opened on the mounting rod, a sliding block is slidably installed on the mounting rod, a bolt is provided on the sliding block, a mounting block is fixedly installed on the side wall of the sliding block, a rotating shaft is rotatably installed on the lower end of the mounting block, a connecting block is fixedly installed on the lower end of the rotating shaft, and a switch body is provided on the connecting block.

[0006] In this technical solution, the mounting rod and the mounting seat are separated, and then the sliding block is installed on the mounting rod, and then the mounting rod and the mounting seat are installed, and the mounting seat is installed to the required position, and then the sliding block is moved. The movement of the sliding block can be facilitated by the cooperation of the small rotating wheel and the guide groove. When it is moved to the appropriate position, the sliding block is fixed by a bolt, and then when the angle needs to be adjusted, the knob is turned, and the knob drives the rotating rod to rotate, and the first gear is driven to rotate for a second time, thereby driving the second gear meshing with it to rotate, thereby driving the rotating shaft to rotate, pulling the pulling block, thereby driving the sliding rod to move, thereby squeezing the spring, and at the same time, the sliding rod inside the limit block is pulled out, and then the switch body is placed therein. After releasing the hand, under the action of the spring, the switch body can be fixed on the connecting block by the clamping plate to prevent it from moving. When the rotating wheel is subjected to external force, it will squeeze the connecting rod to move, and the connecting rod moves, thereby driving the connecting rod to move, thereby squeezing the piston plate, and the piston plate moves horizontally. The hydraulic oil flows through the inside of multiple damping holes. The damping force generated when the hydraulic oil flows through the inside of the damping hole can enable the piston plate to move smoothly horizontally.

[0007] Optionally, a knob is provided on the mounting block, a rotating rod is fixedly mounted on the lower end of the knob, a first gear is fixedly mounted on the lower end of the rotating rod, the first gear is meshed with a second gear, and a rotating shaft is fixedly mounted on the lower end of the second gear.

[0008] By adopting the above technical solution, the knob is rotated, and the knob drives the rotating rod to rotate, which secondarily drives the first gear to rotate, thereby driving the second gear meshing with the first gear to rotate, thereby driving the rotating shaft to rotate.

[0009] Optionally, a connecting rod is provided on the switch body, and a rotating wheel is provided at the other end of the connecting rod.

[0010] By adopting the above technical solution, when the rotating wheel is subjected to external force, the connecting rod will be squeezed to move.

[0011] Optionally, a card slot is provided on the connecting block, a card plate is slidably installed on the side wall of the card slot, a limiting block is provided at the lower end of the connecting block, a limiting slot is opened on the limiting block, and the size of the limiting slot is consistent with the size of the card plate.

[0012] By adopting the above technical solution, the switch body can be fixed on the connecting block by the clamping plate to prevent it from moving.

[0013] Optionally, a mounting plate is fixedly mounted on the connecting block, a through slot is formed on the mounting plate, a sliding rod is slidably mounted in the through slot, a spring is sleeved on the sliding rod, one end of the spring is fixedly mounted on the mounting plate, and the other end is fixedly mounted on the limit block, and a pull block is fixedly mounted on the other end of the sliding rod.

[0014] By adopting the above technical solution, the pull block is pulled to drive the sliding rod to move, thereby squeezing the spring and simultaneously pulling out the sliding rod inside the limit block, thereby releasing the lock on the switch body.

[0015] Optionally, a connecting rod is fixedly installed on the other end of the connecting rod, and a piston plate is fixedly installed on the other end of the connecting rod. A damping hole is opened on the piston plate, and the piston plate is slidably installed on the inner wall of the hydraulic cylinder. Hydraulic oil is arranged in the hydraulic cylinder.

[0016] By adopting the above technical solution, the connecting rod moves, thereby driving the connecting rod to move, thereby squeezing the piston plate, and the piston plate moves horizontally. The hydraulic oil flows through a plurality of damping holes. The damping force generated when the hydraulic oil flows through the damping holes can enable the piston plate to move smoothly horizontally.

[0017] Optionally, the mounting seat is mounted on the mounting rod by bolts.

[0018] By adopting the above technical solution, it is convenient to disassemble the device when necessary.

[0019] Optionally, a groove is provided below the sliding block, a small rotating wheel is rotatably mounted on the side wall of the groove, a guide groove is provided on the outer wall of the bottom plate of the mounting rod, and the small rotating wheel can roll in the guide groove.

[0020] By adopting the above technical solution, the movement of the sliding block can be facilitated by the cooperation of the small rotating wheel and the guide groove.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] The technical solution of the present application can adjust the angle of the switch body by setting a connecting block, and can make the travel switch connecting rod move more smoothly by setting a hydraulic cylinder to prevent excessive impact force during movement and damage to the device. The various structures cooperate with each other to save time and be more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0024] Figure 1 This is a structural schematic diagram of a small steam turbine quick-closing valve travel switch device of the utility model;

[0025] Figure 2 This is a structural schematic diagram of a small steam turbine quick-closing valve travel switch device of the utility model;

[0026] Figure 3 This is a structural schematic diagram of a sliding rod in a small steam turbine quick-closing valve travel switch device of the utility model;

[0027] Figure 4 The utility model is a schematic diagram of the internal structure of a hydraulic cylinder in a small steam turbine quick-closing valve travel switch device.

[0028] In the figure: 1. mounting rod; 2. mounting seat; 3. sliding block; 4. bolt; 5. mounting block; 6. knob; 7. connecting block; 8. switch body; 9. rotating wheel; 10. limit plate; 11. mounting plate; 12. pull block; 13. sliding rod; 14. spring; 15. limit block; 16. connecting rod; 17. connecting rod; 18. hydraulic cylinder; 19. piston plate. DETAILED DESCRIPTION

[0029] See also Figure 1-4The utility model provides a technical solution: a small steam turbine quick-closing valve travel switch device, including a mounting rod 1, mounting seats 2 are fixedly installed at both ends of the mounting rod 1, a plurality of locking holes are opened on the mounting rod 1, a sliding block 3 is slidably installed on the mounting rod 1, a bolt 4 is arranged on the sliding block 3, a mounting block 5 is fixedly installed on the side wall of the sliding block 3, a rotating shaft is rotatably installed at the lower end of the mounting block 5, a connecting block 7 is fixedly installed at the lower end of the rotating shaft, and a switch body 8 is arranged on the connecting block 7.

[0030] In the technical solution of the utility model, if Figure 1 As shown, a knob 6 is provided on the mounting block 5, a rotating rod is fixedly mounted on the lower end of the knob 6, a first gear is fixedly mounted on the lower end of the rotating rod, the first gear is meshed with a second gear, a rotating shaft is fixedly mounted on the lower end of the second gear, and the knob 6 is rotated, the knob 6 drives the rotating rod to rotate, which secondly drives the first gear to rotate, thereby driving the second gear meshed with it to rotate, thereby driving the rotating shaft to rotate.

[0031] In the technical solution of the utility model, if Figure 1 As shown, a connecting rod 16 is disposed on the switch body 8, and a rotating wheel 9 is disposed at the other end of the connecting rod 16. When the rotating wheel 9 is subjected to external force, the connecting rod 16 will be squeezed to move.

[0032] In the technical solution of the utility model, if Figure 2 As shown, a card slot is provided on the connecting block 7, and a card plate is slidably installed on the side wall of the card slot. A limiting block 15 is provided at the lower end of the connecting block 7, and a limiting slot is provided on the limiting block 15. The size of the limiting slot is consistent with the size of the card plate. The switch body 8 can be fixed on the connecting block 7 by the card plate to prevent it from moving.

[0033] In the technical solution of the utility model, if Figure 3 As shown, a mounting plate 11 is fixedly mounted on the connecting block 7, a through slot is provided on the mounting plate 11, a sliding rod 13 is slidably mounted in the through slot, a spring 14 is sleeved on the sliding rod 13, one end of the spring 14 is fixedly mounted on the mounting plate 11, and the other end is fixedly mounted on the limit block 15, a pulling block 12 is fixedly mounted on the other end of the sliding rod 13, the pulling block 12 is pulled to drive the sliding rod 13 to move, thereby squeezing the spring 14, and at the same time pulling out the sliding rod 13 inside the limit block 15, thereby releasing the lock on the switch body 8.

[0034] In the technical solution of the utility model, if Figure 4As shown, a connecting rod 17 is fixedly mounted on the other end of the connecting rod 16, and a piston plate 19 is fixedly mounted on the other end of the connecting rod 17. A damping hole is opened on the piston plate 19, and the piston plate 19 is slidably mounted on the inner wall of the hydraulic cylinder 18. Hydraulic oil is arranged in the hydraulic cylinder 18. The connecting rod 16 moves, thereby driving the connecting rod 17 to move, thereby squeezing the piston plate 19. The piston plate 19 moves horizontally, and the hydraulic oil flows through a plurality of damping holes. The damping force generated when the hydraulic oil flows through the damping holes can enable the piston plate 19 to move smoothly horizontally.

[0035] In the technical solution of the utility model, if Figure 1 As shown, the mounting seat 2 is fixedly mounted on the mounting rod 1 by means of bolts 4, so as to facilitate disassembly of the device when necessary.

[0036] In the technical solution of the utility model, if Figure 1 As shown, a groove is provided below the sliding block 3, a small rotating wheel is rotatably mounted on the side wall of the groove, a guide groove is provided on the outer wall of the bottom plate of the mounting rod 1, the small rotating wheel can roll in the guide groove, and the movement of the sliding block 3 can be facilitated by the cooperation of the small rotating wheel and the guide groove.

[0037] In this technical solution, the mounting rod 1 and the mounting seat 2 are separated, and then the sliding block 3 is installed on the mounting rod 1, and then the mounting rod 1 and the mounting seat 2 are installed, and the mounting seat 2 is installed to the required position, and then the sliding block 3 is moved. The movement of the sliding block 3 is facilitated by the cooperation of the small rotating wheel and the guide groove. When it moves to a suitable position, the sliding block 3 is fixed by the bolt 4. Then, when it is necessary to adjust the angle, the knob 6 is turned, and the knob 6 drives the rotating rod to rotate, and the first gear is driven to rotate secondly, thereby driving the second gear meshing with it to rotate, thereby driving the rotating shaft to rotate, pulling the pull block 12, thereby driving The sliding rod 13 is moved to squeeze the spring 14, and the sliding rod 13 inside the limit block 15 is pulled out at the same time, and then the switch body 8 is placed therein. After releasing the hand, under the action of the spring 14, the switch body 8 can be fixed on the connecting block 7 by the clamping plate to prevent it from moving. When the rotating wheel 9 is subjected to external force, the connecting rod 16 will be squeezed to move, and the connecting rod 16 moves, thereby driving the connecting rod 17 to move, thereby squeezing the piston plate 19, and the piston plate 19 moves horizontally. The hydraulic oil flows through a plurality of damping holes. The damping force generated when the hydraulic oil flows through the damping holes can enable the piston plate 19 to move smoothly horizontally.

Claims

1. A small steam turbine quick-closing valve travel switch device, characterized in that: The invention comprises a mounting rod (1), mounting seats (2) are fixedly mounted at both ends of the mounting rod (1), a plurality of locking holes are provided on the mounting rod (1), a sliding block (3) is slidably mounted on the mounting rod (1), a bolt (4) is arranged on the sliding block (3), a mounting block (5) is fixedly mounted on the side wall of the sliding block (3), a rotating shaft is rotatably mounted on the lower end of the mounting block (5), a connecting block (7) is fixedly mounted on the lower end of the rotating shaft, and a switch body (8) is arranged on the connecting block (7).

2. A small steam turbine quick closing valve travel switch device according to claim 1, characterized in that: The mounting block (5) is provided with a knob (6), a rotating rod is fixedly mounted on the lower end of the knob (6), a first gear is fixedly mounted on the lower end of the rotating rod, the first gear is meshed with a second gear, and a rotating shaft is fixedly mounted on the lower end of the second gear.

3. A small steam turbine quick closing valve travel switch device according to claim 1, characterized in that: A connecting rod (16) is provided on the switch body (8), and a rotating wheel (9) is provided at the other end of the connecting rod (16).

4. A small steam turbine quick closing valve travel switch device according to claim 1, characterized in that: The connecting block (7) is provided with a card slot, a card plate is slidably mounted on the side wall of the card slot, a limiting block (15) is provided at the lower end of the connecting block (7), a limiting slot is provided on the limiting block (15), and the size of the limiting slot is consistent with the size of the card plate.

5. A small steam turbine quick closing valve travel switch device according to claim 4, characterized in that: A mounting plate (11) is fixedly mounted on the connecting block (7), a through slot is provided on the mounting plate (11), a sliding rod (13) is slidably mounted in the through slot, a spring (14) is sleeved on the sliding rod (13), one end of the spring (14) is fixedly mounted on the mounting plate (11), and the other end is fixedly mounted on the limit block (15), and a pulling block (12) is fixedly mounted on the other end of the sliding rod (13).

6. A small steam turbine quick closing valve travel switch device according to claim 3, characterized in that: A connecting rod (17) is fixedly mounted on the other end of the connecting rod (16), and a piston plate (19) is fixedly mounted on the other end of the connecting rod (17). A damping hole is provided on the piston plate (19). The piston plate (19) is slidably mounted on the inner wall of a hydraulic cylinder (18), and hydraulic oil is arranged in the hydraulic cylinder (18).

7. A small steam turbine quick closing valve travel switch device according to claim 1, characterized in that: The mounting seat (2) is mounted on the mounting rod (1) via bolts (4).

8. A small steam turbine quick-closing valve travel switch device according to claim 1, characterized in that: A groove is provided below the sliding block (3), a small rotating wheel is rotatably mounted on the side wall of the groove, and a guide groove is provided on the outer wall of the bottom plate of the mounting rod (1), and the small rotating wheel can roll in the guide groove.

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