Emergency stop switch with auxiliary springback mechanism

Abstract

The utility model provides an emergency stop switch with an auxiliary springback mechanism, which comprises a connecting cylinder, a first springback assembly and a second springback assembly, the connecting cylinder is sleeved on an operating rod, the lower end of the connecting cylinder is connected to the upper surface of a shell, and the first springback assembly and the second springback assembly are symmetrically arranged in the connecting cylinder. The first connecting part and the second connecting part are connected to the operating rod and the connecting cylinder respectively, the two ends of the telescopic rod are movably connected to the first connecting part and the second connecting part respectively, a connecting rod is arranged in the second connecting part, and a spring column is arranged on the connecting rod in a sleeving mode. The two ends of the spring column extend outwards and are connected to the connecting cylinder and the telescopic rod correspondingly. When the operating rod is pressed downwards into the shell, the telescopic rod can drive the operating rod to rebound and reset under the action of the spring column. According to the emergency stop switch, the problems that the operating rod is difficult to reset and the long-term use of the emergency stop switch is difficult to guarantee due to displacement or over fatigue of the spring of the existing emergency stop switch can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of emergency stop switch technology, and more specifically, relates to an emergency stop switch with an auxiliary rebound mechanism. Background Technology

[0002] An emergency stop switch is a master control electrical device primarily used to quickly cut off power and stop equipment operation in emergencies to protect personnel and equipment safety. Emergency stop switches are typically manually controlled push-button switches, with the button usually displayed in a bright red color, and are connected in series with the equipment's control circuit. In an emergency, operators can quickly press the emergency stop switch to cut off the power, effectively preventing mechanical accidents or personal injury.

[0003] Currently, emergency stop switches on the market are divided into two types: spring-loaded and non-spring-loaded. Spring-loaded emergency stop switches refer to switches where the operating lever can spring back to its original position after being pressed, under the action of a spring fitted onto it. However, after a period of use, the spring in existing emergency stop switches may shift or become overly fatigued, causing the force exerted on the operating lever to gradually decrease, making it difficult for the operating lever to return to its original position. Therefore, existing emergency stop switches need to be improved to enhance their return capability and ensure their long-term use. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the spring of the existing emergency stop switch may be displaced or excessively fatigued, resulting in difficulty in resetting the operating lever and making it difficult to ensure the long-term use of the emergency stop switch.

[0005] To achieve the above objectives, this utility model provides an emergency stop switch with an auxiliary rebound mechanism, comprising:

[0006] An emergency stop switch body includes a housing with an internal contact assembly and an operating lever, the operating lever being disposed within the housing and configured to drive the contact assembly to control the closing or opening of an external circuit.

[0007] An auxiliary rebound mechanism includes a connecting cylinder, a first rebound assembly, and a second rebound assembly. The connecting cylinder is sleeved on the operating rod and its lower end is connected to the upper surface of the outer shell. The first rebound assembly and the second rebound assembly are symmetrically arranged inside the connecting cylinder. Both include a first connecting part and a second connecting part respectively connected to the operating rod and the connecting cylinder, and a telescopic rod whose two ends are movably connected to the first connecting part and the second connecting part, respectively. The second connecting part has a connecting rod, and a spring post is sleeved on the connecting rod. The two ends of the spring post extend outward and are respectively connected to the connecting cylinder and the telescopic rod.

[0008] When the operating lever is pressed down into the housing, the telescopic rod can cause the operating lever to spring back to its original position under the action of the spring column.

[0009] Optionally, the telescopic rod includes a first outer rod, a second outer rod, a spring, and an inner rod. The two ends of the first outer rod and the second outer rod are respectively connected to the first connecting part and the second connecting part, and the inner rod is connected between the first outer rod and the second outer rod through the spring.

[0010] Optionally, both the first outer rod and the second outer rod have grooves inside for connecting the inner rod, and one end of the spring is fixed in the groove.

[0011] Optionally, both the first outer rod and the second outer rod are provided with through holes for connecting them to the first connecting part and the second connecting part, respectively.

[0012] Optionally, both the first connecting portion and the second connecting portion have a U-shaped cross-section.

[0013] Optionally, both the first connecting portion and the second connecting portion are provided with fasteners for fixing the first outer rod and the second outer rod, respectively.

[0014] Optionally, the contact assembly includes a stationary contact and a movable contact configured to move with the operating lever, wherein the external circuit is closed or opened when the movable contact contacts the stationary contact.

[0015] Optionally, the lower end of the housing is provided with a wiring portion for contacting an external circuit.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model proposes an emergency stop switch with an auxiliary rebound mechanism. The auxiliary rebound mechanism includes a connecting cylinder, a first rebound assembly, and a second rebound assembly. The connecting cylinder is sleeved on the operating rod, with its lower end connected to the upper surface of the outer casing. The first and second rebound assemblies are symmetrically arranged inside the connecting cylinder. Both include a first connecting part and a second connecting part respectively connected to the operating rod and the connecting cylinder, and a telescopic rod whose two ends are movably connected to the first and second connecting parts. The second connecting part contains a connecting rod, on which a spring post is sleeved. The two ends of the spring post extend outward and are respectively connected to the connecting cylinder and the telescopic rod. When the operating rod is pressed down into the outer casing, the telescopic rod can drive the operating rod to rebound and reset under the action of the spring post. Compared with existing emergency stop switches, this utility model effectively avoids the problem of difficulty in resetting the operating rod due to spring displacement or excessive fatigue, thus allowing the operating rod to rebound promptly after operation for reuse, thereby ensuring the long-term use of the emergency stop switch.

[0018] As can be seen from the above, this utility model can effectively solve the problem that the spring of the existing emergency stop switch will be displaced or over-fatigued, resulting in difficulty in resetting the operating lever and difficulty in ensuring the long-term use of the emergency stop switch.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] This invention can be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to denote the same or similar parts.

[0021] Figure 1 A cross-sectional view of an emergency stop switch with an auxiliary rebound mechanism according to an embodiment of the present invention is shown;

[0022] Figure 2 A schematic diagram of an emergency stop switch with an auxiliary rebound mechanism according to an embodiment of the present invention is shown.

[0023] Figure 3 A cross-sectional view of a first spring-loaded assembly according to an embodiment of the present invention is shown.

[0024] Figure label:

[0025] 1-Outer shell;

[0026] 2-Operating lever;

[0027] 21-Operating cap;

[0028] 3-Connecting cylinder;

[0029] 4-First connecting part;

[0030] 5-Second connecting part;

[0031] 6-Connecting rod;

[0032] 7-Spring column;

[0033] 8-Wiring section;

[0034] 9-First outer rod;

[0035] 10 - Second outer rod;

[0036] 11-Through hole;

[0037] 12-Spring;

[0038] 13-Inner rod;

[0039] 14-Groove. Detailed Implementation

[0040] To enable those skilled in the art to more fully understand the technical solution of this utility model, exemplary embodiments of this utility model will be described more comprehensively and in detail below with reference to the accompanying drawings. Obviously, the one or more embodiments of this utility model described below are merely one or more specific ways to implement the technical solution of this utility model, and are not exhaustive. It should be understood that other ways belonging to a general inventive concept can be used to implement the technical solution of this utility model, and it should not be limited to the embodiments described exemplary. Based on one or more embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0041] Example: Figure 1 A cross-sectional view of an emergency stop switch with an auxiliary rebound mechanism according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of an emergency stop switch with an auxiliary rebound mechanism according to an embodiment of the present invention is shown. Figure 3 A cross-sectional view of a first spring-loaded assembly according to an embodiment of the present invention is shown.

[0042] Reference Figure 1-3 An embodiment of this utility model provides an emergency stop switch with an auxiliary rebound mechanism, comprising:

[0043] The emergency stop switch body includes a housing 1 with an internal contact assembly and an operating lever 2. The operating lever 2 is disposed inside the housing 1 and is configured to drive the contact assembly to control the closing or opening of an external circuit.

[0044] The auxiliary rebound mechanism includes a connecting cylinder 3, a first rebound assembly, and a second rebound assembly. The connecting cylinder 3 is sleeved on the operating rod 2 and its lower end is connected to the upper surface of the outer shell 1. The first rebound assembly and the second rebound assembly are symmetrically arranged inside the connecting cylinder 3. Both include a first connecting part 4 and a second connecting part 5 respectively connected to the operating rod 2 and the connecting cylinder 3, and a telescopic rod whose two ends are movably connected to the first connecting part 4 and the second connecting part 5 respectively. The second connecting part 5 has a connecting rod 6, and a spring column 7 is sleeved on the connecting rod 6. The two ends of the spring column 7 extend outward and are respectively connected to the connecting cylinder 3 and the telescopic rod.

[0045] When the operating lever 2 is pressed down into the housing 1, the telescopic rod can drive the operating lever 2 to spring back to its original position under the action of the spring column 7.

[0046] In one embodiment, the contact assembly includes a stationary contact and a movable contact configured to move with the operating lever 2, wherein when the movable contact contacts the stationary contact, an external circuit is closed or opened (not shown in the figure).

[0047] In one specific embodiment, the lower end of the housing 1 is provided with a wiring portion 8 for contacting an external circuit.

[0048] In one specific embodiment, the upper end of the operating lever 2 is provided with an operating cap 21 for operating it.

[0049] In one embodiment, the cross-sections of both the first connecting portion 4 and the second connecting portion 5 are U-shaped.

[0050] In one specific embodiment, both the first outer rod 9 and the second outer rod 10 are provided with through holes 11 for connecting them to the first connecting part 4 and the second connecting part 5, respectively.

[0051] In one specific embodiment, the telescopic rod includes a first outer rod 9, a second outer rod 10, a spring 12, and an inner rod 13. The two ends of the first outer rod 9 and the second outer rod 10 are respectively connected to the first connecting part 4 and the second connecting part 5. The inner rod 13 is connected between the first outer rod 9 and the second outer rod 10 through the spring 12.

[0052] In one specific embodiment, both the first outer rod 9 and the second outer rod 10 are provided with a groove 14 for connecting the inner rod 13, and one end of the spring 12 is fixed in the groove 14.

[0053] Specifically, when one end of the telescopic rod moves with the operating lever, the distance between the first outer rod and the second outer rod will continuously change under the action of the inner rod and the spring to ensure normal operation.

[0054] In one embodiment, both the first connecting portion 4 and the second connecting portion 5 are provided with fasteners for fixing the first outer rod 9 and the second outer rod, respectively. Specifically, the fastener is a nut, and the first connecting portion also has a connecting rod. The nut is threadedly connected to the connecting rod to fix one end of the first outer rod and the second outer rod to the first connecting portion and the second connecting portion, respectively, through through holes.

[0055] When using the emergency stop switch of this utility model, the operator can enter and move the operating lever inside the housing by holding the operating cap, so that the moving contact and the stationary contact come into contact, thereby closing or opening the circuit. During this process, the telescopic rod moves with the operating lever, which compresses the spring column. When the operator removes the force on the operating lever, the operating lever will spring back to its original position under the action of the spring column restoring its deformation, so that it can be used again.

[0056] The emergency stop switch with an auxiliary rebound mechanism proposed in this utility model includes a connecting cylinder, a first rebound assembly, and a second rebound assembly. The connecting cylinder is sleeved on the operating rod and its lower end is connected to the upper surface of the outer shell. The first and second rebound assemblies are symmetrically arranged inside the connecting cylinder. Both include a first connecting part and a second connecting part respectively connected to the operating rod and the connecting cylinder, and a telescopic rod whose two ends are movably connected to the first and second connecting parts respectively. The second connecting part has a connecting rod, and a spring post is sleeved on the connecting rod. The two ends of the spring post extend outward and are respectively connected to the connecting cylinder and the telescopic rod. When the operating rod is pressed down into the outer shell, the telescopic rod can drive the operating rod to rebound and reset under the action of the spring post.

[0057] Therefore, compared with existing emergency stop switches, the emergency stop switch of this utility model can effectively avoid the problem of difficulty in resetting the operating lever due to spring displacement or excessive fatigue, so that the operating lever can rebound in time after operation for reuse, thereby ensuring the long-term use of the emergency stop switch.

[0058] While one or more embodiments of the present invention have been described above, those skilled in the art will recognize that the present invention can be implemented in any other form without departing from its spirit and scope. Therefore, the embodiments described above are illustrative and not restrictive, and many modifications and substitutions will be apparent to those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An emergency stop switch with an auxiliary rebound mechanism, characterized in that, include: An emergency stop switch body includes a housing with an internal contact assembly and an operating lever, the operating lever being disposed within the housing and configured to drive the contact assembly to control the closing or opening of an external circuit. An auxiliary rebound mechanism includes a connecting cylinder, a first rebound assembly, and a second rebound assembly. The connecting cylinder is sleeved on the operating rod and its lower end is connected to the upper surface of the outer shell. The first rebound assembly and the second rebound assembly are symmetrically arranged inside the connecting cylinder. Both include a first connecting part and a second connecting part respectively connected to the operating rod and the connecting cylinder, and a telescopic rod whose two ends are movably connected to the first connecting part and the second connecting part, respectively. The second connecting part has a connecting rod, and a spring post is sleeved on the connecting rod. The two ends of the spring post extend outward and are respectively connected to the connecting cylinder and the telescopic rod. When the operating lever is pressed down into the housing, the telescopic rod can cause the operating lever to spring back to its original position under the action of the spring column.

2. The emergency stop switch with an auxiliary rebound mechanism according to claim 1, characterized in that, The telescopic rod includes a first outer rod, a second outer rod, a spring, and an inner rod. The two ends of the first outer rod and the second outer rod are respectively connected to the first connecting part and the second connecting part. The inner rod is connected between the first outer rod and the second outer rod through the spring.

3. The emergency stop switch with an auxiliary rebound mechanism according to claim 2, characterized in that, Both the first outer rod and the second outer rod have grooves inside for connecting the inner rod, and one end of the spring is fixed in the groove.

4. The emergency stop switch with an auxiliary rebound mechanism according to claim 3, characterized in that, Both the first outer rod and the second outer rod are provided with through holes for connecting them to the first connecting part and the second connecting part, respectively.

5. The emergency stop switch with an auxiliary rebound mechanism according to claim 4, characterized in that, Both the first connecting portion and the second connecting portion have U-shaped cross-sections.

6. The emergency stop switch with an auxiliary rebound mechanism according to claim 5, characterized in that, Both the first connecting part and the second connecting part are provided with fasteners for fixing the first outer rod and the second outer rod, respectively.

7. The emergency stop switch with an auxiliary rebound mechanism according to claim 6, characterized in that, The contact assembly includes a stationary contact and a movable contact configured to move with the operating lever. When the movable contact contacts the stationary contact, the external circuit is closed or opened.

8. The emergency stop switch with an auxiliary rebound mechanism according to claim 7, characterized in that, The lower end of the housing is provided with a wiring part for contacting external circuits.

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