Full-hydraulic anti-misoperation starting switch

Abstract

The utility model discloses a full-hydraulic anti-misoperation starting switch, which relates to the technical field of starting switches and comprises a shell, a first sliding plate is slidably arranged on the lower half section in the shell, a cylinder is fixedly connected to the lower surface of the first sliding plate, a first electric contact piece is fixedly connected to the lower surface of the cylinder, and a second electric contact piece is fixedly connected to the lower surface of the cylinder. A second electric contact piece is fixedly connected to the upper surface of the bottom of the shell, the first electric contact piece is matched with the second electric contact piece, a second sliding plate is arranged on the upper half section in the shell in a sliding mode, a liquid bag is arranged in the shell, the top end of the liquid bag abuts against the second sliding plate, and the bottom end of the liquid bag abuts against the first sliding plate. According to the full-hydraulic anti-misoperation starting switch, by arranging the first sliding plate, the second sliding plate, the liquid bag and other structures, when the liquid bag is in an expansion state, the second sliding plate moves downwards to drive the first sliding plate to move downwards synchronously through the liquid bag; and when the liquid bag is in a contraction state, the second sliding plate moves downwards without influencing the first sliding plate, so that misoperation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of starting switches, in particular to a full hydraulic type misoperation-proof starting switch. Background Art

[0002] In the process of large steel casting, a protection system is usually added to the electrical control switch to prevent various misoperations.

[0003] At present, when protecting electrical control switches during the casting process of large steel products, most of the time, tools such as latches are used to limit the switches, which has low safety.

[0004] Therefore, it is necessary to propose a fully hydraulic anti-misoperation starting switch to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a fully hydraulic anti-misoperation starting switch to solve the problem of low safety in that most of the electrical control switches are limited by tools such as latches when protecting them during the casting process of large steel products.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully hydraulic anti-misoperation starting switch, comprising a shell, a first slide plate is slidably provided in the lower half of the shell, a cylinder is fixedly connected to the lower surface of the first slide plate, a first electric contact is fixedly connected to the lower surface of the cylinder, a second electric contact is fixedly connected to the upper surface of the bottom of the shell, the first electric contact cooperates with the second electric contact, a second slide plate is slidably provided in the upper half of the shell, a liquid capsule is provided inside the shell, the top end of the liquid capsule abuts on the second slide plate, and the bottom end of the liquid capsule abuts on the first slide plate.

[0007] Preferably, a sliding column is slidably provided on the top of the housing, the second sliding plate is fixedly connected to the bottom end of the sliding column, and a pressure plate is fixedly connected to the top end of the sliding column.

[0008] Preferably, a second spring is sleeved on the outside of the sliding column, one end of the second spring is fixedly connected to the second sliding plate, and the other end of the second spring is fixedly connected to the top of the shell.

[0009] Preferably, a slide groove is provided on the inner wall of the housing, a slider is slidably provided inside the slide groove, and the slider is fixedly connected to the first slider.

[0010] Preferably, a first spring is sleeved on the outside of the cylinder, one end of the first spring is fixedly connected to the first slide plate, and the other end of the first spring is fixedly connected to the bottom of the shell.

[0011] Preferably, the liquid capsule is connected with a liquid tube, and the liquid tube extends to the outside of the shell.

[0012] Preferably, a hydraulic cylinder is provided on the outside of the shell, and a delivery pipe is connected to the hydraulic cylinder, and the end of the delivery pipe away from the hydraulic cylinder is connected to the liquid pipe, and a piston plate is slidably provided inside the hydraulic cylinder, and the end of the hydraulic cylinder away from the delivery pipe is threadedly connected to a threaded rod, the piston plate is fixedly connected to the threaded rod, and the end of the threaded rod away from the piston plate is fixedly connected to a rotating rod.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model provides a first slide plate, a second slide plate and a liquid capsule. When the liquid capsule is in an expanded state, the second slide plate moves downward and drives the first slide plate to move downward synchronously through the liquid capsule. When the liquid capsule is in a contracted state, the second slide plate moves downward without affecting the first slide plate, thereby preventing misoperation.

[0015] In extreme cases, if the delivery tube is unplugged, the delivery tube is separated from the liquid tube, the hydraulic oil inside the bladder flows out, and the bladder is in a contracted state, which can also prevent misoperation;

[0016] The anti-misoperation system of the starting switch is composed entirely of hydraulic cylinders, delivery pipes and other structures. It is hydraulically operated, has a simple structure and is easy to maintain. Compared with the electronically controlled safety system, it is more economical and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of a fully hydraulic anti-misoperation starting switch.

[0018] Figure 2 This is a schematic diagram of the shell and liquid capsule structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the hydraulic cylinder and piston plate of the utility model.

[0020] In the figure: 1, housing; 2, first slide plate; 3, cylinder; 4, first electric contact; 5, second electric contact; 6, first spring; 7, slide groove; 8, slider; 9, liquid capsule; 10, second slide plate; 11, pressure plate; 12, slide column; 13, second spring; 14, rotating rod; 15, liquid pipe; 16, delivery pipe; 17, hydraulic cylinder; 18, piston plate; 19, threaded rod. DETAILED DESCRIPTION

[0021] The utility model provides Figure 1 to Figure 3The fully hydraulic anti-misoperation starting switch shown includes a housing 1, a first slide plate 2 is slidably provided in the lower half of the interior of the housing 1, a slide groove 7 is provided on the inner wall of the housing 1, a slider 8 is slidably provided inside the slide groove 7, and the slider 8 is fixedly connected to the first slide plate 2. The slide groove 7 and the slider 8 are provided to improve the sliding stability of the first slide plate 2. A cylinder 3 is fixedly connected to the lower surface of the first slide plate 2, a first electric contact 4 is fixedly connected to the lower surface of the cylinder 3, and a second electric contact 5 is fixedly connected to the upper surface of the bottom of the housing 1, and the first electric contact 4 cooperates with the second electric contact 5. When the first slide plate 2 drives the cylinder 3 to move downward, the first electric contact 4 moves toward the direction of the second electric contact 5, and after the first electric contact 4 contacts the second electric contact 5, the switch is started.

[0022] A first spring 6 is sleeved on the outside of the cylinder 3 , one end of the first spring 6 is fixedly connected to the first slide 2 , and the other end of the first spring 6 is fixedly connected to the bottom of the housing 1 . The first spring 6 can assist the first slide 2 in resetting.

[0023] The upper half of the housing 1 is slidably provided with a second slide plate 10, and a liquid capsule 9 is provided inside the housing 1. The top of the liquid capsule 9 abuts against the second slide plate 10, and the bottom of the liquid capsule 9 abuts against the first slide plate 2. When the liquid capsule 9 is in an expanded state, the second slide plate 10 moves downward, which will drive the first slide plate 2 to move downward synchronously through the liquid capsule 9; and when the liquid capsule 9 is in a contracted state, the second slide plate 10 moves downward without affecting the first slide plate 2, thereby preventing misoperation.

[0024] A sliding column 12 is slidably provided at the top of the housing 1, the second slide plate 10 is fixedly connected to the bottom end of the sliding column 12, and a pressure plate 11 is fixedly connected to the top end of the sliding column 12. A second spring 13 is sleeved on the outside of the sliding column 12, one end of the second spring 13 is fixedly connected to the second slide plate 10, and the other end of the second spring 13 is fixedly connected to the top of the housing 1. The second slide plate 10 is pressed by the pressure plate 11 and the sliding column 12, so that the second slide plate 10 moves inside the housing 1, and the second spring 13 can assist the pressure plate 11, the sliding column 12 and the second slide plate 10 to reset.

[0025] The liquid capsule 9 is connected with a liquid pipe 15, which can be made of soft materials and does not affect the up and down movement of the liquid capsule 9, and the liquid pipe 15 extends to the outside of the housing 1. A hydraulic cylinder 17 is arranged outside the housing 1, and hydraulic oil or other oil is injected into the hydraulic cylinder 17. A delivery pipe 16 is connected to the hydraulic cylinder 17, and the delivery pipe 16 can be made of hard materials and is not easy to deform. The end of the delivery pipe 16 away from the hydraulic cylinder 17 is connected with the liquid pipe 15, and a piston plate 18 is slidably arranged inside the hydraulic cylinder 17. The end of the hydraulic cylinder 17 away from the delivery pipe 16 is threadedly connected with a threaded rod 19, and the piston plate 18 is fixedly connected to the threaded rod 19, and the end of the threaded rod 19 away from the piston plate 18 is fixedly connected to the rotating rod 14. When in use, the hydraulic cylinder 17, the threaded rod 19 and other structures can be hidden and placed.

[0026] During actual use, the threaded rod 19 is rotated by the rotating rod 14 to drive the piston plate 18 to move toward the delivery pipe 16, and the hydraulic oil inside the hydraulic cylinder 17 enters the interior of the liquid capsule 9 through the delivery pipe 16, causing the liquid capsule 9 to expand and become larger. When the liquid capsule 9 is in an expanded state, the second slide plate 10 moves downward and drives the first slide plate 2 to move downward synchronously through the liquid capsule 9, and can be started normally; when the threaded rod 19 is rotated in the opposite direction by the rotating rod 14, the piston plate 18 is driven to move in the direction away from the delivery pipe 16, and the hydraulic oil inside the liquid capsule 9 flows back to the interior of the hydraulic cylinder 17. The liquid capsule 9 is in a contracted state, and the downward movement of the second slide plate 10 will not affect the first slide plate 2, thereby preventing misoperation.

[0027] In addition, if an extreme situation occurs, the delivery tube 16 is unplugged, the delivery tube 16 is separated from the liquid tube 15, the hydraulic oil inside the liquid bag 9 flows out, and the liquid bag 9 is in a contracted state, which can also prevent misoperation.

[0028] The anti-misoperation system of the start switch is entirely composed of structures such as a hydraulic cylinder 17 and a delivery pipe 16. It is hydraulically operated, has a simple structure, and is easy to maintain. Compared with the electronically controlled safety system, it is more economical and stable.

Claims

1. A fully hydraulic anti-misoperation starting switch, comprising a housing (1), characterized in that: A first slide plate (2) is slidably disposed in the lower half of the shell (1), a cylinder (3) is fixedly connected to the lower surface of the first slide plate (2), a first electric contact sheet (4) is fixedly connected to the lower surface of the cylinder (3), a second electric contact sheet (5) is fixedly connected to the upper surface of the bottom of the shell (1), the first electric contact sheet (4) cooperates with the second electric contact sheet (5), a second slide plate (10) is slidably disposed in the upper half of the shell (1), a liquid capsule (9) is disposed in the shell (1), the top end of the liquid capsule (9) abuts against the second slide plate (10), and the bottom end of the liquid capsule (9) abuts against the first slide plate (2).

2. A fully hydraulic anti-misoperation starting switch according to claim 1, characterized in that: A sliding column (12) is slidably provided on the top of the housing (1), the second sliding plate (10) is fixedly connected to the bottom end of the sliding column (12), and a pressure plate (11) is fixedly connected to the top end of the sliding column (12).

3. A fully hydraulic anti-misoperation starting switch according to claim 2, characterized in that: A second spring (13) is sleeved on the outside of the sliding column (12); one end of the second spring (13) is fixedly connected to the second sliding plate (10); and the other end of the second spring (13) is fixedly connected to the top of the housing (1).

4. A fully hydraulic anti-misoperation starting switch according to claim 1, characterized in that: A sliding groove (7) is provided on the inner wall of the housing (1), a sliding block (8) is slidably provided inside the sliding groove (7), and the sliding block (8) is fixedly connected to the first sliding block (2).

5. The fully hydraulic anti-misoperation starting switch according to claim 1, characterized in that: A first spring (6) is sleeved on the outside of the cylinder (3); one end of the first spring (6) is fixedly connected to the first slide plate (2); and the other end of the first spring (6) is fixedly connected to the bottom of the housing (1).

6. A fully hydraulic anti-misoperation starting switch according to claim 1, characterized in that: The liquid capsule (9) is connected to a liquid tube (15), and the liquid tube (15) extends to the outside of the shell (1).

7. A fully hydraulic anti-misoperation starting switch according to claim 6, characterized in that: A hydraulic cylinder (17) is arranged outside the housing (1), and a delivery pipe (16) is connected to the hydraulic cylinder (17). One end of the delivery pipe (16) away from the hydraulic cylinder (17) is connected to the liquid pipe (15). A piston plate (18) is slidably arranged inside the hydraulic cylinder (17). One end of the hydraulic cylinder (17) away from the delivery pipe (16) is threadedly connected to a threaded rod (19). The piston plate (18) is fixedly connected to the threaded rod (19), and one end of the threaded rod (19) away from the piston plate (18) is fixedly connected to a rotating rod (14).

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