Handle position limiting and manual-electric switching interlocking device of three-position operating mechanism

Abstract

The application discloses a handle limiting and manual-electric switching interlocking device of a three-station operating mechanism, a transverse moving module is arranged on the bottom surface of the bottom plate, and a handle is detachably arranged on the bottom plate; the handle can drive a moving rod arranged in the moving module to move in a long hole arranged on the bottom plate. In the application, the recess can lock the position of the moving rod after the moving rod is embedded, and the convenient switching and locking of the three stations are realized. Meanwhile, after the handle is detached, the handle hole cover plate moves to the long hole direction under the action of the tension spring, the handle hole cover plate pushes the operating stud to move in the through hole and drives the locking plate to move through the driving plate, the recess of the locking plate is separated from the moving rod, and the lead screw rotates under the drive of the electric drive module and stops at a certain station. The above structures realize the convenient operation and station locking in manual mode and the station conversion in electric drive mode.

Description

Technical Field

[0001] The invention belongs to the technical field of operating mechanism limiting structures, in particular to a handle limiting and manual-electric switching interlocking device of a three-position operating mechanism. Background Art

[0002] Currently, the manual operation of a three-position switch typically utilizes a three-position switch operating handle and a three-position switch operating shaft sleeve with a locking mechanism. Rotation of the handle drives the gears and sprockets to achieve the closing and closing of the three-position mechanism. During operation, both a reliable connection between the operating handle and the three-position mechanism and reliable braking of the handle are crucial. Therefore, a complete and reliable interlocking device is required to coordinate the three-position mechanism and the handle. Furthermore, the three-position mechanism features both electric and manual operating systems, allowing for reliable switching between electric and manual modes to ensure stable operation. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a handle limit and manual-electric switching interlocking device for a three-station operating mechanism. In this structure, the moving rod slides along the edge of the locking plate beside the groove during movement, and after moving to the groove position, the switching of different stations is completed. The groove can lock the position of the moving rod after the moving rod is embedded, thereby realizing convenient switching and locking of the three stations. At the same time, after the handle is removed, the handle hole cover plate moves toward the long hole under the action of the tension spring, and the handle hole cover plate pushes the operating stud to move in the through hole and pushes the locking plate to move through the drive plate, so that the groove of the locking plate is separated from the moving rod, and the lead screw rotates and stops at a certain station under the drive of the electric drive module.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A handle limit and manual-electric switching interlocking device for a three-position operating mechanism, characterized in that it includes a base plate, a locking plate, a movable module, and a handle. The bottom surface of the base plate is provided with a horizontal movable module, and the base plate is detachably provided with a handle, which enables the movable module to drive a movable rod provided therein to move within a long hole provided in the base plate.

[0006] A locking plate is provided on the bottom surface of the bottom plate above the long hole through a connecting rod, and three grooves are provided at intervals on the edge of the locking plate close to the moving rod for the moving rod to be embedded therein;

[0007] The locking plate is connected to a driving plate, and when the driving plate moves, it can drive the locking plate and the connecting rod to move below the bottom surface of the base plate. The movement of the locking plate can separate the groove and the moving rod embedded in the groove from each other.

[0008] A return tension spring is provided between the locking plate and the base plate.

[0009] Further: the moving module includes a screw, a nut and a bevel gear pair, one bevel gear in the bevel gear pair is driven by the handle, and the other bevel gear in the bevel gear pair is coaxially sleeved on the screw laterally arranged below the bottom surface of the base plate, and the nut is sleeved on the screw, and the moving rod is arranged on the nut.

[0010] Furthermore: two laterally inclined connecting rods are provided on the bottom surface of the base plate above the long hole, one end of the two connecting rods is connected to the rotating shaft provided on the base plate, and the other end of the two connecting rods is connected to the rotating shaft provided on both sides of the locking plate.

[0011] Furthermore, one end of the driving plate is connected to the end of the locking plate close to the bevel gear pair, and an operating stud provided at the other end of the driving plate passes through a through hole provided in a corresponding position on the base plate and extends to the top of the base plate, and the operating stud located above the base plate is connected to a dial plate hingedly mounted on the upper end surface of the base plate;

[0012] The inner edge of the through hole is spaced apart from the outer edge of the operating stud.

[0013] Furthermore: the reset tension spring is arranged between the end of the locking plate away from the bevel gear pair and the bottom surface of the base plate.

[0014] Furthermore: a limiting column is provided on the bottom surface of the base plate above the locking plate.

[0015] Furthermore: the outer edge of the handle located above the upper end surface of the bottom plate is sleeved with a handle hole cover plate, the bottom surface of the handle hole cover plate is provided with a guide post, and the guide post is slidably arranged in a sliding groove arranged in position on the bottom plate;

[0016] A tension spring is provided on the bottom plate, and after the handle is removed, the tension spring can pull the handle hole cover plate to move and partially or completely cover the handle hole provided on the bottom plate for inserting the handle;

[0017] Furthermore, after the handle is disassembled, the lead screw can drive the moving rod to move in the long hole under the drive of the electric drive module.

[0018] Furthermore: a clamping block for clamping the handle is provided at the end of the dial plate close to the handle.

[0019] The technical effects achieved by the present invention are:

[0020] In the present invention, the locking plate can be moved and separated from the moving rod under the drive of the drive plate, and the moving rod can be moved laterally under the drive of the nut and moved to different groove positions. Then, after the moving rod is embedded in the groove, it represents moving to any position of grounding, opening or isolation. During the movement, the moving rod slides along the edge of the locking plate beside the groove, and after moving to the groove position, it completes the switching of different workstations. After the moving rod is embedded, the groove can lock the position of the moving rod, realizing convenient switching and locking of the three workstations. At the same time, after the handle is removed, the handle hole cover plate moves toward the long hole under the action of the tension spring. The handle hole cover plate pushes the operating stud to move in the through hole and pushes the locking plate to move through the drive plate, so that the groove of the locking plate is separated from the moving rod, and the screw rotates and stops at a certain workstation under the drive of the electric drive module. The above structures realize convenient operation and workstation locking when manual and workstation conversion when electric drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 Rear view;

[0023] Figure 3 yes Figure 1 A schematic diagram of the structure when the handle is turned to the left;

[0024] Figure 4 yes Figure 3 Rear view;

[0025] Figure 5 is a schematic diagram of the interaction between the handle hole cover and the operating stud after the handle is removed. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the scope of protection of the present invention cannot be limited thereto.

[0027] A handle limit and manual-electric switching interlocking device for a three-position operating mechanism, as shown in the figure, the innovation of the present invention lies in: it includes a base plate 1, a locking plate 3, a moving module and a handle 18, a horizontal moving module is set on the bottom surface of the base plate, and a handle is detachably set on the base plate, which can enable the moving module to drive the moving rod 7 set therein to move in the long hole 9 set in the base plate.

[0028] A locking plate is installed on the bottom surface of the base plate above the slot, connected by a connecting rod 22. Three recesses are spaced apart on the edge of the locking plate near the moving rod, allowing the moving rod to fit into the recess. These recesses are for grounding 2, tripping 6, and isolating 10, respectively. The locking plate is connected to a drive plate 21, which, when moved, drives the locking plate and the connecting rod beneath the base plate. This movement of the locking plate separates the recesses from the embedded moving rod. A return spring 25 is installed between the locking plate and the base plate.

[0029] The moving module includes a screw 23, a nut 24 and a bevel gear pair. One bevel gear 20 in the bevel gear pair is driven by the handle. The other bevel gear 26 in the bevel gear pair is coaxially sleeved on a screw laterally arranged below the bottom surface of the base plate. The nut is sleeved on the screw, and the moving rod is set on the moving block 8 on the nut.

[0030] like Figure 2 、 4 As shown, two transversely inclined connecting rods 22 are provided on the bottom surface of the base plate above the long hole, one end of the two connecting rods is connected to the rotating shaft 4 provided on the base plate, and the other end of the two connecting rods is connected to the rotating shaft 4 provided on both sides of the locking plate.

[0031] One end of the drive plate is connected to the end of the locking plate near the bevel gear pair and can be mounted on the connecting rod's rotating shaft at that location. An operating stud 13, located at the other end of the drive plate, passes through a through-hole 14 positioned in the base plate and extends above the base plate. The operating stud, located above the base plate, is connected to a paddle 12 hingedly mounted on the upper surface of the base plate via a rotating shaft 11. The paddle's end near the handle is equipped with a block 15 for locking the handle. The inner edge of the through-hole is spaced from the outer edge of the operating stud, and a larger gap can be provided between them to facilitate the operating stud's movement within the through-hole and drive the drive plate to move synchronously.

[0032] The reset spring is arranged between the end of the locking plate away from the bevel gear pair and the bottom surface of the base plate. A limit column 5 is arranged on the bottom surface of the base plate above the locking plate to prevent the locking plate from entering a dead zone when it swings upward.

[0033] The outer edge of the handle located above the upper end face of the base plate is sleeved with a handle hole cover plate 16, and the bottom surface of the handle hole cover plate is provided with a guide column 28, which is slidably set in the sliding groove 27 set in the base plate; a tension spring 19 is set on the base plate, which can pull the handle hole cover plate to move after the handle is removed and partially or completely cover the handle hole 29 set on the base plate for inserting the handle. When the handle hole cover plate moves in the direction of the operating stud, it can squeeze the operating stud to move in the through hole, and make the locking plate swing upward along the rotating axis of the connecting rod. The groove on the locking plate is separated from the moving rod. At this time, an electric drive module can be connected to the screw, such as: a motor, a reduction box, etc., and the motor drives the screw to rotate and causes the nut to move the moving rod horizontally, thereby completing the switching of the three workstations.

[0034] The use process of the present invention is:

[0035] During assembly:

[0036] Pull the handle hole cover to the right in the figure to expose the handle hole 29, then insert the handle tube 17 into the hole and fit it with the bevel gear on the bottom surface of the base plate.

[0037] When changing workstations:

[0038] like Figure 1 、 2 As shown, the moving rod is located in the middle of the opening position. Figure 3 、 4 When moving to the grounding station on the right side, the operation is as follows:

[0039] Operators such as Figure 3 As shown in the figure, the dial plate is pushed to the left to separate the block 15 from the groove of the handle tube, and the operating stud is pushed to the left in the through hole. Figure 2 As shown in the figure, the locking plate is pushed to the right, and the locking plate swings to the upper right in the figure and separates the groove of the opening station from the movable plate.

[0040] Turn the handle, the handle drives the screw to rotate through the bevel gear pair, and the nut drives the moving rod to move horizontally. Figure 3 When the moving rod leaves the groove position, the operating stud can be loosened, and the moving rod slides in the long hole along the edge of the locking plate until it moves to the groove 10 of the grounding position. The locking plate is reset under the action of the reset spring, and the groove locks the position of the moving rod.

[0041] When the moving rod moves, it drives other components to move together.

[0042] When switching between manual and electric:

[0043] Remove the handle tube from the handle hole, and the handle hole cover will move forward under the action of the tension spring. Figure 5Move to the left side to partially or completely cover the handle hole. Figure 5 When the upper end shown hits the operating stud, it will squeeze the operating stud and move to the left side of the figure. The operating stud drives the locking plate to swing and move through the driving plate, so that the groove and the moving rod move away from each other. At this time, the motor directly drives the screw to rotate and switches the nut and the moving rod between three positions.

[0044] In the present invention, the locking plate can be moved and separated from the moving rod under the drive of the drive plate, and the moving rod can be moved laterally under the drive of the nut and moved to different groove positions. Then, after the moving rod is embedded in the groove, it represents moving to any position of grounding, opening or isolation. During the movement, the moving rod slides along the edge of the locking plate beside the groove, and after moving to the groove position, it completes the switching of different workstations. After the moving rod is embedded, the groove can lock the position of the moving rod, realizing convenient switching and locking of the three workstations. At the same time, after the handle is removed, the handle hole cover plate moves toward the long hole under the action of the tension spring. The handle hole cover plate pushes the operating stud to move in the through hole and pushes the locking plate to move through the drive plate, so that the groove of the locking plate is separated from the moving rod, and the screw rotates and stops at a certain workstation under the drive of the electric drive module. The above structures realize convenient operation and workstation locking when manual and workstation conversion when electric drive.

Claims

1. A handle limit and manual-electric switching interlocking device for a three-position operating mechanism, characterized by: The invention comprises a base plate, a locking plate, a movable module and a handle. The bottom surface of the base plate is provided with a horizontal movable module. The base plate is provided with a detachable handle, which enables the movable module to drive the movable rod provided therein to move in the long hole provided in the base plate. A locking plate is provided on the bottom surface of the bottom plate above the long hole through a connecting rod, and three grooves are provided at intervals on the edge of the locking plate close to the moving rod for the moving rod to be embedded therein; The moving rod can slide along the edge of the locking plate beside the groove. The groove can lock the position of the moving rod after the moving rod enters. The switching of the moving rod in the three grooves can realize the switching and locking of the three working positions. The locking plate is connected to a driving plate, and when the driving plate moves, it can drive the locking plate and the connecting rod to move below the bottom surface of the base plate. The movement of the locking plate can separate the groove and the moving rod embedded in the groove from each other. A return tension spring is provided between the locking plate and the base plate.

2. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 1 is characterized in that: The moving module includes a screw, a nut and a bevel gear pair, one bevel gear in the bevel gear pair is driven by the handle, and the other bevel gear in the bevel gear pair is coaxially sleeved on a screw laterally arranged below the bottom surface of the base plate, a nut is sleeved on the screw, and the moving rod is arranged on the nut.

3. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 2 is characterized in that: Two laterally inclined connecting rods are arranged on the bottom surface of the base plate above the long hole, one end of the two connecting rods is connected to the rotating shaft arranged on the base plate, and the other end of the two connecting rods is connected to the rotating shafts arranged on both sides of the locking plate.

4. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 3 is characterized in that: One end of the driving plate is connected to the end of the locking plate close to the bevel gear pair, and an operating stud provided at the other end of the driving plate passes through a through hole provided in a corresponding position on the base plate and extends to the top of the base plate. The operating stud located above the base plate is connected to a dial plate hingedly mounted on the upper surface of the base plate; The inner edge of the through hole is spaced apart from the outer edge of the operating stud.

5. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 4 is characterized in that: The reset tension spring is arranged between the end of the locking plate away from the bevel gear pair and the bottom surface of the base plate.

6. The handle limit and manual-electric switching interlocking device of the three-position operating mechanism according to claim 5 is characterized in that: A limiting column is provided on the bottom surface of the base plate above the locking plate.

7. The handle limit and manual-electric switching interlocking device of the three-position operating mechanism according to claim 6 is characterized in that: The outer edge of the handle located above the upper end surface of the bottom plate is sleeved with a handle hole cover plate, and the bottom surface of the handle hole cover plate is provided with a guide post, which is slidably arranged in a sliding groove arranged in position on the bottom plate; A tension spring is arranged on the bottom plate, and after the handle is disassembled, the tension spring can pull the handle hole cover plate to move and partially or completely cover the handle hole arranged on the bottom plate for inserting the handle.

8. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 7, characterized in that: After the handle is disassembled, the lead screw can enable the moving rod to move in the long hole under the drive of the electric drive module.

9. The handle limit and manual-electric switching interlocking device of a three-position operating mechanism according to claim 8, characterized in that: The end of the shift plate close to the handle is provided with a clamping block for clamping the handle.

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