A protective structure and switch assembly

Abstract

The present invention relates to the technical field of switch devices, and in particular to a protective structure and a switch assembly. The protective structure includes an emergency stop cover covering the switch panel, the emergency stop cover having an accommodating cavity for accommodating at least one switch facing the inner side of the switch panel, the emergency stop cover having a window corresponding to the accommodating cavity, and a cover that can seal the window is movably provided on the emergency stop cover. The protective structure of the present invention can be applied to equipment with a high control level. When not started, the cover seals the window, and the switch cannot be pressed through the window. When starting the switch, it is necessary to first open the cover to expose the switch in the accommodating cavity, and then start the switch. That is, two conscious actions are required to start the switch, which can effectively avoid operational errors, reduce damage to the switch assembly and equipment, and even avoid safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of switch devices, and in particular to a protective structure and a switch assembly. Background Art

[0002] For devices with high control levels, it's generally not possible to activate the switch directly. Two deliberate actions are required to activate the switch: one to reveal the start button, and another to activate the switch. In the prior art, a protective cover is typically installed on the start switch. To activate the button, the cover must be opened before pressing the start button to meet the required usage requirements. Devices with high restriction levels are also equipped with a stop button, which can be quickly pressed to provide protection in an emergency. Prior art, such as Chinese patent document CN208834991U, discloses a protective structure for an electromagnetic switch. The electromagnetic switch is equipped with a frame that pivots onto a pressure plate with a through-hole corresponding to the power-on button and an inner protrusion corresponding to the power-off button. This allows the pressure plate, which has a larger surface area than the power-on button, to quickly deactivate the power. However, since the power-on button is exposed, it can be pressed through the through-hole, which can sometimes cause accidental activation, making it unsuitable for devices with high control levels. Summary of the Invention

[0003] Therefore, the present invention provides a protective structure capable of performing an emergency stop and suitable for controlling high-level equipment, and a switch assembly having the protective structure.

[0004] To solve the above problems, the protective structure of the present invention includes an emergency stop cover covering the switch panel, the emergency stop cover having a accommodating cavity for accommodating at least one switch facing the inner side of the switch panel, the emergency stop cover having a window corresponding to the accommodating cavity, and a cover that can seal the window is movably provided on the emergency stop cover.

[0005] A biasing member is provided between the cover and the emergency stop cover for providing the cover with a biasing force for blocking movement in the window direction.

[0006] The emergency stop cover is provided with a limiting groove whose extension direction is parallel to the moving direction of the cover, and the cover is provided with a first stopper corresponding to the extension direction of the limiting groove. The biasing member is arranged in the limiting groove, and one end of the biasing member is against the side wall of the limiting groove away from the cover, and the other end of the biasing member is against the first stopper.

[0007] The cover is further provided with a limit block, and the emergency stop cover is provided with a second stop block. The limit block abuts against the second stop block to prevent the cover from continuing to move in the direction of sealing the window.

[0008] The cover is a long strip structure, the limit block is located on the outside of the cover corresponding to the window, an anti-retreat rib is provided on the cover between the limit block and the window, and an anti-retreat groove for accommodating the anti-retreat rib is provided on the side of the second block close to the window.

[0009] The sealing cover is arranged on the inner side of the emergency stop cover, and the emergency stop cover also includes a supporting rib arranged on the inner side of the window, and a hook arranged on the inner side of the emergency stop cover along the extension direction of the supporting rib. The supporting rib and the hook are arranged on both sides of the moving direction of the sealing cover, and the second stop block and the anti-retreat groove are arranged on both sides of the center line of the sealing cover.

[0010] The emergency stop cover is hinged on the switch panel, and a stop button is provided on the inner side of the end of the emergency stop cover away from the hinge between the emergency stop cover and the switch panel. The cover is provided with a first pressing block and a second pressing block that can press the stop button. When the cover seals the window, the first pressing block is located on the upper side of the stop button; when the window is open, the second pressing block is located on the upper side of the stop button.

[0011] A torsion spring is provided between the emergency stop cover and the switch panel, and the torsion spring applies a biasing force to the emergency stop cover toward the switch panel.

[0012] The emergency stop cover, the switch panel and the cover are respectively provided with a first lock column, a second lock column and a third lock column, and the first lock column, the second lock column and the third lock column are respectively provided with a first lock hole, a second lock hole and a third lock hole that can be penetrated, and a lock head can be passed through the first lock hole, the second lock hole and the third lock hole; the lock head locks the first lock column and the second lock column, and when the cover fully opens the window, the second pressing block presses the stop button; the lock head locks the first lock column, the second lock column and the third lock hole, and when the cover seals the window, the first pressing block presses the stop button.

[0013] A penetrating relief groove is provided on the portion of the cover that seals the outside of the window, and a blocking wall is provided on the side of the relief groove close to the window. The first lock column can be inserted into the relief groove and blocked and restricted from moving by the blocking wall.

[0014] The switch assembly of the present invention comprises the above-mentioned protective structure and a switch panel, wherein the switch panel comprises a stop button and at least one switch.

[0015] The technical solution of the present invention has the following advantages:

[0016] 1. The protective structure of the present invention includes an emergency stop cover covering the switch panel, wherein the emergency stop cover has a housing cavity for accommodating at least one switch on the inner side facing the switch panel, the emergency stop cover has a window corresponding to the housing cavity, and a cover that can seal the window is movably provided on the emergency stop cover. The protective structure of the present invention can be applied to equipment with a high control level. When not started, the cover seals the window, and the switch cannot be pressed through the window. When starting the switch, it is necessary to first open the cover to expose the switch in the housing cavity, and then start the switch. That is, two conscious actions are required to start the switch, which can effectively avoid operational errors, reduce damage to switch components and equipment, and even avoid safety accidents.

[0017] 2. The protective structure of the present invention can move the cover to open the window to expose the switch located in the accommodating chamber. The accommodating chamber does not need to be opened by flipping the emergency stop cover, that is, a large flipping space is not required to open the switch, and the protective structure saves more space when used.

[0018] 3. The protection structure of the present invention, the arrangement of the first pressing block and the second pressing block, can press the stop button at any time during operation without considering the position of the cover, which is safer and more reliable.

[0019] 4. The provision of the elastic member in the protective structure of the present invention enables the cover to automatically seal the window, making the operation simpler and more convenient.

[0020] 5. The protective structure of the present invention, the supporting ribs, the hooks, the second stopper, the anti-retraction grooves, the anti-retraction ribs and the second limiting block can restrict the cover from being removed from the emergency stop cover and limit the cover at the same time.

[0021] 6. The protective structure of the present invention, the hinged connection between the emergency stop cover and the switch panel can reduce the force required to press the emergency stop button, and the operator can press the stop button more quickly, so that in an emergency, the emergency stop cover can be quickly pressed to achieve protection measures.

[0022] 7. In the protective structure of the present invention, when the emergency stop cover is locked with the switch panel, the stop button is in a pressed state, so that the equipment cannot carry out production work when the protective structure and the switch panel are not opened, which is safer and more reliable.

[0023] 8. The protective structure of the present invention and the torsion spring ensure that the emergency stop cover always has a tendency to lean against the switch panel, thereby preventing the emergency stop cover from shaking due to vibration when the switch panel is used in a vibrating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic structural diagram of the switch panel of the present invention;

[0026] Figure 2 It is a structural schematic diagram of a three-dimensional view of the emergency stop cover of the present invention from a first angle;

[0027] Figure 3 A schematic structural diagram of a third perspective view of the emergency stop cover of the present invention from a second angle;

[0028] Figure 4 It is a schematic structural diagram of a top view of the emergency stop cover of the present invention from a second angle;

[0029] Figure 5 A schematic structural diagram of a three-dimensional view of the cover of the present invention at a first angle;

[0030] Figure 6 A schematic structural diagram of a third perspective view of the cover of the present invention from a second angle;

[0031] Figure 7 is a schematic structural diagram of a top view of the cover of the present invention at a second angle;

[0032] Figure 8 This is a schematic structural diagram of a three-dimensional view of the sealing cover and the emergency stop cover after being connected;

[0033] Figure 9 It is a structural schematic diagram of a cross-sectional view of the sealing cover and the emergency stop cover when the window of the present invention is closed;

[0034] Figure 10 It is a structural schematic diagram of a cross-sectional view of the sealing cover and the emergency stop cover when the window of the present invention is opened;

[0035] Figure 11 This is a schematic structural diagram of a three-dimensional view of the switch assembly of the present invention when it is in a locked state;

[0036] Figure 12 This is a schematic structural diagram of a cross-sectional view of the switch assembly of the present invention when it is in a locked state;

[0037] Figure 13 This is a schematic structural diagram of a three-dimensional view of the switch assembly of the present invention when it is in an unlocked state;

[0038] Figure 14It is a schematic structural diagram of a cross-sectional view of the switch assembly of the present invention when it is in an unlocked state;

[0039] Figure 15 It is a structural schematic diagram of a three-dimensional view of the switch assembly of the present invention when the window is open in an unlocked state;

[0040] Figure 16 It is a structural schematic diagram of a cross-sectional view of the switch assembly of the present invention when the window is open and the switch assembly is in an unlocked state;

[0041] Description of reference numerals:

[0042] 1-Emergency stop cover; 11-Second pin insertion hole; 12-Accommodating chamber; 13-Pressing portion; 14-First lock column; 15-First lock hole; 16-Window; 17-Supporting rib; 18-Second stop block; 19-Anti-retraction groove; 20-Limiting groove; 2-Sealing cover; 21-First pressing block; 22-Second pressing block; 23-Limiting block; 24-Anti-retraction rib; 25-Third lock column; 26-Third lock hole; 27-Give way groove; 28-Blocking wall; 29-First stop block; 30-Push handle; 3-Elastic member; 4-Switch panel; 41-First pin insertion hole; 42-Start button; 43-Stop button; 44-Second lock column; 45-Second lock hole; 46-Hook DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Example 1:

[0046] The protective structure in this embodiment, such as Figure 1-16 As shown, it includes an emergency stop cover 1 installed on a switch panel 4 and a sealing cover 2 movably arranged on the emergency stop cover 1 .

[0047] The switch panel 4 is provided with a first pin insertion hole 41, and the emergency stop cover 1 is provided with a second pin insertion hole 11. When the emergency stop cover 1 is installed with the switch panel 4, the first pin insertion hole 41 and the second pin insertion hole 11 are aligned and the pin is inserted to hinge the emergency stop cover 1 and the switch panel 4.

[0048] The switch panel 4 is provided with at least one switch and a stop button 43. The emergency stop cover 1 has an accommodating cavity 12 for accommodating at least one switch on the inner side facing the switch panel 4. The position of the emergency stop cover 1 away from the hinged connection between the emergency stop cover 1 and the switch panel 4 is a pressing portion 13. The pressing portion 13 is suitable for pressing with fingers or the like. A stop button 43 is provided on the inner side of the pressing portion 13. When the pressing portion 13 is pressed in an emergency, the stop button 43 can be quickly pressed.

[0049] To make operation safer, the emergency stop cover 1 and the switch panel 4 can be locked when not in use to prevent accidental operation. A first lock post 14 and a second lock post 44 are provided on the emergency stop cover 1 and the switch panel 4, respectively. The first lock post 14 and the second lock post 44 are provided with a first lock hole 15 and a second lock hole 45 that can be penetrated, respectively. A lock head can be inserted into the first lock hole 15 and the second lock hole 45 to lock the emergency stop cover 1 and the switch panel 4. In this embodiment, when the lock head locks the first lock post 14 and the second lock post 44, the stop button 43 is in a pressed state.

[0050] The switch panel 4 operates in a variety of environments. When the switch panel 4 is vibrating, a torsion spring is provided between the switch panel 4 and the emergency stop cover 1. The torsion spring biases the emergency stop cover 1 toward the switch panel 4, causing the emergency stop cover 1 to move toward the switch panel 4 and prevent the emergency stop cover 1 from dangling due to vibration. The torsion spring is provided at the hinged joint between the emergency stop cover 1 and the switch panel 4. Of course, not providing a torsion spring does not affect the use of the protective device. Therefore, in some situations or to save costs, the torsion spring and its related structure may be omitted.

[0051] The emergency stop cover 1 can be opened by directly flipping the emergency stop cover 1 to expose the switch located in the accommodating cavity 12. In this way, the emergency stop cover 1 needs a large space to flip. Although the structure is simple, it is not suitable for environments with small spaces.

[0052] In this embodiment, a window 16 is provided on the emergency stop cover 1 at a position corresponding to the accommodating chamber 12. The cover 2 is movable to seal the window 16. When the cover 2 seals the window 16, the switch is isolated in the accommodating chamber 12. When the cover 2 moves to open the window 16, the switch in the accommodating chamber 12 can be opened through the window 16. The cover 2 is disposed on the inner side of the emergency stop cover 1. The cover 2 is provided with a first pressing block 21 and a second pressing block 22 capable of pressing the stop button 43. When the cover 2 seals the window 16, the first pressing block 21 is located above the stop button 43. When the pressing portion 13 is pressed, the first pressing block 21 can press the stop button 43. When the window 16 is opened, the second pressing block 22 is located above the stop button 43. When the pressing portion 13 is pressed, the second pressing block 22 can press the stop button 43.

[0053] In this embodiment, Figure 5-Figure 7 As shown, the cover 2 is a long strip structure, and a support rib 17 is provided on the inner side of the window of the emergency stop cover 1. A hook 46 is provided inside the inner side of the emergency stop cover 1 along the extension direction of the support rib 17. The support rib 17 and the hook 46 are provided on both sides of the moving direction of the cover, and are relatively mirrored. The support rib 17 and the hook 46 can support the cover 2. Since the part of the cover 2 supported by the support rib 17 is reduced when the window 16 is opened, but due to the setting of the hook 46, the cover 2 is supported by the hook 46 and the support rib 17 at the same time, which can effectively prevent the cover 2 from falling. A limit block 23 is provided on the side of the cover 2 facing the emergency stop cover 1, and a second stop block 18 is provided on the emergency stop cover 1. The limit block 23 abuts against the second stop block 18 to prevent the cover 2 from continuing to move in the direction of sealing the window 16. As shown Figure 9 The stopper 23 in this embodiment is located on the outside of the cover 2 corresponding to the window. Figure 7 On the left side of the figure, an anti-retraction rib 24 is provided on the cover 2 between the stop block 23 and the window, and an anti-retraction groove 19 for accommodating the anti-retraction rib 24 is provided on the side of the second stop block 18 close to the window 16. Figure 3 As shown, in order to make the movement of the cover 2 more stable, the support rib 17, the second stop block 18, and the anti-retreat groove 19 are arranged on both sides of the center line of the cover 2. The number of the support rib 17, the second stop block 18, the anti-retreat groove 19, and the hook 46 is set according to the use requirements, and two are set for each in the figure.

[0054] When the emergency stop cover 1 and the switch panel 4 are locked, in order to more effectively prevent the cover 2 from moving, a third lock column 25 is provided on the cover 2, and a third lock hole 26 is provided on the third lock column 25. The third lock column 25 is overlapped with the first lock column 14 and the second lock column 44. Figure 1 、 Figure 3 and Figure 5 As shown, there is one first lock post 14 , and the second lock post 44 and the third lock post 25 are both provided in pairs and are symmetrically arranged relative to the center line of the cover 2 .

[0055] When the lock head locks the first lock column 14 and the second lock column 44 and the cover 2 fully opens the window 16, the second pressing block 22 presses the stop button 43; when the lock head locks the first lock column 14, the second lock column 44 and the third lock hole 26 and the cover 2 seals the window 16, the first pressing block 21 presses the stop button 43.

[0056] In order to prevent the first lock column 14 from restricting the movement of the cover 2, a penetrating groove 27 is provided on the portion of the cover 2 that seals the outside of the window 16. The side of the groove 27 close to the window 16 has a blocking wall 28, and the first lock column 14 can be inserted into the groove 27.

[0057] A biasing member is provided between the cover 2 and the emergency stop cover 1 to provide the cover 2 with a biasing force to move in the direction of sealing the window 16. The provision of the biasing member enables the cover 2 to automatically move to seal the window 16 after the cover 2 is opened, making operation simpler and more convenient. In this embodiment, the biasing member is an elastic member 3. The emergency stop cover 1 is provided with a limiting groove 20 whose extension direction is parallel to the movement direction of the cover 2. The cover 2 is provided with a first stopper 29 corresponding to the extension direction of the limiting groove 20. The elastic member 3 is provided in the limiting groove 20. One end of the elastic member 3 abuts against the side wall of the limiting groove 20 away from the cover 2, and the other end of the elastic member 3 abuts against the first stopper 29. Of course, not providing a biasing member does not affect the use of the protective device. Therefore, in some occasions or to save costs, the biasing member and its related structures may not be provided.

[0058] In order to facilitate movement, a push handle 30 is further provided on the cover 2 .

[0059] The protective structure of this embodiment can be applied to high-level control equipment. To activate the switch, the cover must first be opened to expose the switch located within the accommodating cavity 12, and then the switch must be activated. In other words, two deliberate actions are required to activate the switch. This effectively avoids operational errors, reduces damage to the switch assembly and equipment, and even reduces safety accidents. Furthermore, after the switch is activated, in the event of an emergency, a quick press of the pressing portion 13 can be used to provide protection. The protective structure also has an emergency stop function, which provides greater safety.

[0060] Example 2:

[0061] The switch assembly in this embodiment includes a switch panel 4 and the protective structure in the first embodiment. The switch panel 4 includes a stop button 43 and at least one switch. Figure 1 As shown, in this embodiment, the switch panel 4 includes a stop button 43 and a switch, and the stop button 43 is higher than the switch.

[0062] In this embodiment, the switch is a start button 42 , and one start button 42 is provided.

[0063] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A protective structure, comprising an emergency stop cover (1) covering a switch panel (4), wherein the emergency stop cover (1) has an accommodating cavity (12) for accommodating at least one switch on an inner side facing the switch panel (4), characterized in that: The emergency stop cover (1) is provided with a window (16) at a position corresponding to the accommodating cavity (12), and a cover (2) capable of sealing the window (16) is movably provided on the emergency stop cover (1); The emergency stop cover (1) is hinged on the switch panel (4); a stop button (43) is provided on the inner side of one end of the emergency stop cover (1) away from the hinge between the emergency stop cover (1) and the switch panel (4); a first pressing block (21) and a second pressing block (22) capable of pressing the stop button (43) are provided on the cover (2); when the cover (2) seals the window (16), the first pressing block (21) is located on the upper side of the stop button (43); when the window (16) is opened, the second pressing block (22) is located on the upper side of the stop button (43); The emergency stop cover (1), the switch panel (4) and the cover (2) are respectively provided with a first lock column (14), a second lock column (44) and a third lock column (25); the first lock column (14), the second lock column (44) and the third lock column (25) are respectively provided with a first lock hole (15), a second lock hole (45) and a third lock hole (26) that can be penetrated; the first lock hole (15), the second lock hole (45) and the third lock hole (26) can be penetrated by a lock head; the lock head locks the first lock column (14) and the second lock column The locking column (44) is locked, and when the cover (2) fully opens the window (16), the second pressing block (22) presses the stop button (43); the lock head locks the first locking column (14), the second locking column (44) and the third locking hole (26), and when the cover (2) seals the window (16), the first pressing block (21) presses the stop button (43); a biasing member is provided between the cover (2) and the emergency stop cover (1) to provide the cover (2) with a biasing force in the direction of sealing the window (16); A limit block (23) is also provided on the cover (2), and a second stop block (18) is provided on the emergency stop cover (1), wherein the limit block (23) abuts against the second stop block (18) to prevent the cover (2) from continuing to move in a direction to seal the window (16); The cover (2) is a long strip structure, the limit block (23) is located on the outside of the cover (2) corresponding to the window, an anti-retraction rib (24) is provided on the cover (2) between the limit block (23) and the window, and an anti-retraction groove (19) for accommodating the anti-retraction rib (24) is provided on the side of the second stop block (18) close to the window (16).

2. The protective structure according to claim 1, characterized in that: The emergency stop cover (1) is provided with a limiting groove (20) whose extension direction is parallel to the moving direction of the cover (2), and the cover (2) is provided with a first stopper (29) corresponding to the extension direction of the limiting groove (20). The biasing member is arranged in the limiting groove (20), one end of the biasing member abuts against the side wall of the limiting groove (20) away from the cover (2), and the other end of the biasing member abuts against the first stopper (29).

3. The protective structure according to claim 1, characterized in that: The cover (2) is arranged on the inner side of the emergency stop cover (1), and the emergency stop cover (1) further includes a support rib (17) arranged on the inner side of the window, and a hook (46) arranged on the inner side of the emergency stop cover (1) along the extension direction of the support rib. The support rib and the hook (46) are arranged on both sides of the moving direction of the cover, and the second stop block (18) and the anti-retraction groove (19) are arranged on both sides of the center line of the cover (2).

4. The protective structure according to claim 1, characterized in that: A torsion spring is provided between the emergency stop cover (1) and the switch panel (4), and the torsion spring applies a biasing force to the emergency stop cover (1) toward the switch panel (4).

5. The protective structure according to claim 1, characterized in that: A penetrating relief groove (27) is provided on the portion of the cover (2) that seals the outside of the window (16), and a blocking wall (28) is provided on a side of the relief groove (27) close to the window (16). The first locking column (14) can be inserted into the relief groove (27) and is blocked and restricted from moving by the blocking wall (28).

6. A switch assembly, characterized in that: It comprises a protective structure and a switch panel (4) according to any one of claims 1 to 5, wherein the switch panel (4) comprises a stop button (43) and at least one switch.

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