Mechanical and electrical interlocking device with high safety

Abstract

The utility model discloses a mechanical electrical interlocking device with high safety, which comprises a base, a switch piece is fixedly arranged at the top of the base in a penetrating manner, a bottom pipe is fixedly mounted at the top of the base, the switch piece is positioned in the bottom pipe, and a sleeve is sleeved at the top end of the bottom pipe in a threaded fit manner. A pressing rod is movably arranged on the top of the sleeve in a penetrating mode, a plum blossom handle is fixedly connected to the top end of the pressing rod, and a guide sleeve is detachably connected into an opening in the top end of the bottom pipe. When the switch is used, the pressing rod is rotated through the plum blossom handle to move the guide pin from the interior of the first transverse groove to the top end of the vertical groove, the pressing rod can be moved downwards to trigger the switch piece, the guide pin is moved to the bottom end of the vertical groove, then the pressing rod is rotated, the guide pin is moved into the second transverse groove, and the switch piece is turned off. Therefore, the pressing rod can be prevented from moving upwards to be reset under the action of the spring, the switch piece is kept in a triggered state, operation is easy and convenient, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical equipment technology, specifically a highly secure mechanical and electrical interlocking device. Background Technology

[0002] Interlocking devices can be classified into centralized interlocking and non-centralized interlocking according to the operation method, and into electric interlocking, relay interlocking and computer interlocking according to the different working methods of the main equipment. Mechanical and electrical interlocking means that when the start button is pressed, the electrical action is activated, and the electrical action will continue even after the button is released, without resetting because the button is released.

[0003] A search revealed that patent CN221149848U discloses a mechanical-electrical interlocking device. By rotating a knob, a hexagonal prism and a rotating shaft can be rotated, allowing a rope to be wound around the shaft. This pulls two locking blocks out of their slots, releasing the restriction on the second rotating shaft. Pressing the knob downwards engages the pressing element with the switching element. After use, rotating the knob in the opposite direction, combined with spring return, locks the locking blocks back into their slots, thus restricting the second rotating shaft and preventing it from moving freely up and down, thereby preventing accidental activation. The accidental activation mechanism used in this device is simple to understand, low in cost, and easy to widely implement.

[0004] While the above solution can prevent accidental activation, the elasticity of the switch itself after the knob is released may push the rotating shaft upwards to reset, and the locking block may also re-enter the slot under the action of the spring. Therefore, when the switch is a limit switch or micro switch or other self-resetting switch, it cannot maintain the triggered state of the switch. The knob must be pressed continuously to ensure that the switch remains triggered, which is inconvenient to use and needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a highly secure mechanical and electrical interlocking device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A highly secure mechanical and electrical interlocking device includes a base, a switch element fixedly mounted on the top of the base, a bottom tube fixedly installed on the top of the base, the switch element located inside the bottom tube, a sleeve threadedly fitted to the top of the bottom tube, a pressure rod movably passing through the top of the sleeve, a perforated handle fixedly connected to the top of the pressure rod, a guide sleeve detachably connected to the top opening of the bottom tube, the bottom end of the pressure rod located inside the guide sleeve, the switch element located directly below the pressure rod, a retaining ring fixedly fitted to the outer wall of the pressure rod inside the sleeve, a spring fitted to the outer wall of the pressure rod between the retaining ring and the guide sleeve, the top end of the spring being positioned connected to the retaining ring, the bottom end of the spring being positioned connected to the guide sleeve, a U-shaped guide groove passing through the outer wall of the guide sleeve, a guide pin movably passing through the U-shaped guide groove, and the guide pin being fixedly connected to the pressure rod.

[0008] As a further embodiment of this utility model: the C-shaped guide groove includes a vertical groove, a first horizontal groove and a second horizontal groove that are disposed through the guide sleeve. One end of the first horizontal groove is connected to the top end of the vertical groove, and one end of the second horizontal groove is connected to the bottom end of the vertical groove.

[0009] As a further embodiment of this utility model: multiple connecting rods are fixedly connected to the outer peripheral wall of the guide sleeve, and multiple grooves are opened on the top of the bottom tube, with the connecting rods located in the corresponding grooves.

[0010] As a further embodiment of this utility model: the bottom of the retaining ring is provided with a first positioning hole, the top of the guide sleeve is provided with a second positioning hole, the top of the spring is integrally formed with a first positioning rod, the first positioning rod is located in the first positioning hole, and the bottom of the spring is integrally formed with a second positioning rod, the second positioning rod is located in the second positioning hole.

[0011] As a further improvement of this utility model: one end of the guide pin located inside the guide sleeve is connected to a threaded hole on the outer peripheral wall of the pressure rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, this utility model allows the pressure rod to be rotated via the plum blossom handle, moving the guide pin from the first horizontal groove to the top of the vertical groove. This allows the pressure rod to be moved downwards to trigger the switch and move the guide pin to the bottom of the vertical groove. Then, rotating the pressure rod moves the guide pin to the second horizontal groove, preventing the pressure rod from moving upwards and resetting under the action of the spring. This keeps the switch in the triggered state. The operation is simple and convenient, and the effect is good. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a highly secure mechanical and electrical interlocking device.

[0015] Figure 2 This is a schematic diagram of the linkage distribution structure in a high-safety mechanical and electrical interlocking device.

[0016] Figure 3 This is a schematic diagram of the structure of the I-shaped guide groove in a high-safety mechanical and electrical interlocking device.

[0017] The components include: base 1, mounting hole 2, switch 3, bottom tube 4, sleeve 5, pressure rod 6, plum blossom handle 7, retaining ring 8, first positioning hole 9, spring 10, first positioning rod 11, second positioning rod 12, guide sleeve 13, second positioning hole 14, connecting rod 15, groove 16, guide pin 17, vertical groove 18, first horizontal groove 19, and second horizontal groove 20. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 In this embodiment of the utility model, a highly secure mechanical and electrical interlocking device includes a base 1 with several mounting holes 2 extending through it. A switch 3 is fixedly inserted through the top of the base 1. A bottom tube 4 is fixedly installed on the top of the base 1, with the switch 3 located inside the bottom tube 4. A sleeve 5 is threadedly fitted to the top of the bottom tube 4. A pressure rod 6 is movably inserted through the top of the sleeve 5. A perforated handle 7 is fixedly connected to the top of the pressure rod 6. A guide sleeve 13 is detachably connected to the top opening of the bottom tube 4. The bottom end of the pressure rod 6 is located inside the guide sleeve 13. The switch 3 is located directly below the pressure rod 6. A retaining ring 8 is fixedly sleeved on the outer wall of the sleeve 5. A spring 10 is sleeved on the outer wall of the pressure rod 6 located between the retaining ring 8 and the guide sleeve 13. The top end of the spring 10 is positioned and connected to the retaining ring 8, and the bottom end of the spring 10 is positioned and connected to the guide sleeve 13. A U-shaped guide groove is provided through the outer wall of the guide sleeve 13. A guide pin 17 is movably inserted in the U-shaped guide groove. The guide pin 17 is fixedly connected to the pressure rod 6. Further, the U-shaped guide groove includes a vertical groove 18, a first horizontal groove 19, and a second horizontal groove 20 that are provided through the guide sleeve 13. One end of the first horizontal groove 19 is connected to the top end of the vertical groove 18, and one end of the second horizontal groove 20 is connected to the bottom end of the vertical groove 18.

[0020] By adopting the above-mentioned solution, this utility model allows for easy operation. When using the device, rotating the pressure rod 6 via the plum blossom handle 7 moves the guide pin 17 from the first horizontal groove 19 to the top of the vertical groove 18. This allows the pressure rod 6 to move downwards, triggering the switch 3 and moving the guide pin 17 to the bottom of the vertical groove 18. Rotating the pressure rod 6 then moves the guide pin 17 into the second horizontal groove 20, preventing the pressure rod 6 from moving upwards and resetting under the action of the spring 10. This keeps the switch 3 in a triggered state, making operation simple and convenient, and providing good performance.

[0021] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, the bottom of the retaining ring 8 is provided with a first positioning hole 9, the top of the guide sleeve 13 is provided with a second positioning hole 14, the top of the spring 10 is integrally formed with a first positioning rod 11, the first positioning rod 11 is located in the first positioning hole 9, and the bottom of the spring 10 is integrally formed with a second positioning rod 12, the second positioning rod 12 is located in the second positioning hole 14.

[0022] The first positioning rod 11, in conjunction with the first positioning hole 9, positions the top end of the spring 10 on the retaining ring 8. The second positioning rod 12, in conjunction with the second positioning hole 14, positions the bottom end of the spring 10 on the guide sleeve 13. Since the spring 10 is a metal part with good elasticity, when the spring 10 is in its natural state, the guide pin 17 is located at the end of the first horizontal groove 19 away from the vertical groove 18. When the pressure rod 6 is rotated by the plum blossom handle 7, causing the guide pin 17 to move from the first horizontal groove 19 to the vertical groove 18, the spring 10 will be twisted. Correspondingly, the spring 10 will also be twisted between the guide sleeve 13 and the pressure rod 6. A torque is applied between the rods 6. Therefore, when the guide pin 17 is moved to the bottom of the vertical groove 18 and rotated into the second horizontal groove 20, the guide pin 17 will automatically move to the end of the second horizontal groove 20 away from the vertical groove 18 under the torque applied by the spring 10. This can prevent the guide pin 17 from moving in the second horizontal groove 20 without human operation. In addition, the spring 10 can be pre-twisted at a certain angle during assembly, so that the spring 10 always applies a torque to the pressure rod 6, thereby further improving the stability of the guide pin 17 in the first horizontal groove 19 and the second horizontal groove 20.

[0023] Specific combination Figure 1 and Figure 2 In one embodiment of this utility model, a plurality of connecting rods 15 are fixedly connected to the outer peripheral wall of the guide sleeve 13, and a plurality of grooves 16 are provided on the top of the bottom tube 4. The connecting rods 15 are located in the corresponding grooves 16. Through the cooperation between the grooves 16 and the connecting rods 15, it is convenient to position and install the guide sleeve 13 in the top opening of the bottom tube 4.

[0024] Specific combination Figure 1 In one embodiment of this utility model, one end of the guide pin 17 located inside the guide sleeve 13 is connected to the threaded hole on the outer peripheral wall of the pressure rod 6 to facilitate the assembly of the guide pin 17 on the pressure rod 6. In order to ensure the reliability of the connection between the guide pin 17 and the pressure rod 6, the threaded end of the guide pin 17 can be bonded and fixed in the threaded hole using thread adhesive.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly secure mechanical and electrical interlocking device, characterized in that: The system includes a base (1), a switch (3) fixedly inserted at the top of the base (1), a bottom tube (4) fixedly installed at the top of the base (1), the switch (3) located inside the bottom tube (4), a sleeve (5) threadedly connected to the top of the bottom tube (4), a pressure rod (6) movably passing through the top of the sleeve (5), a perforated handle (7) fixedly connected to the top of the pressure rod (6), a guide sleeve (13) detachably connected to the opening at the top of the bottom tube (4), and the bottom end of the pressure rod (6) located inside the guide sleeve (13). The switch (3) is located directly below the pressure rod (6). The pressure rod (6) is fixedly sleeved with a retaining ring (8) on the outer wall inside the sleeve (5). A spring (10) is sleeved on the outer wall of the pressure rod (6) between the retaining ring (8) and the guide sleeve (13). The top end of the spring (10) is positioned and connected to the retaining ring (8), and the bottom end of the spring (10) is positioned and connected to the guide sleeve (13). A U-shaped guide groove is provided through the outer wall of the guide sleeve (13). A guide pin (17) is movably inserted in the U-shaped guide groove. The guide pin (17) is fixedly connected to the pressure rod (6).

2. The high-safety mechanical and electrical interlocking device according to claim 1, characterized in that: The C-shaped guide groove includes a vertical groove (18), a first horizontal groove (19), and a second horizontal groove (20) that are disposed through the guide sleeve (13). One end of the first horizontal groove (19) is connected to the top end of the vertical groove (18), and one end of the second horizontal groove (20) is connected to the bottom end of the vertical groove (18).

3. The high-safety mechanical and electrical interlocking device according to claim 1, characterized in that: The outer peripheral wall of the guide sleeve (13) is fixedly connected with multiple connecting rods (15), and the top of the bottom tube (4) is provided with multiple grooves (16), with the connecting rods (15) located in the corresponding grooves (16).

4. A high-safety mechanical and electrical interlocking device according to claim 1, characterized in that: The bottom of the retaining ring (8) is provided with a first positioning hole (9), the top of the guide sleeve (13) is provided with a second positioning hole (14), the top of the spring (10) is integrally formed with a first positioning rod (11), the first positioning rod (11) is located in the first positioning hole (9), the bottom of the spring (10) is integrally formed with a second positioning rod (12), the second positioning rod (12) is located in the second positioning hole (14).

5. A high-safety mechanical and electrical interlocking device according to claim 1, characterized in that: One end of the guide pin (17) located inside the guide sleeve (13) is connected to the threaded hole on the outer peripheral wall of the pressure rod (6).

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