Precision positioning transfer switch with self-locking function

Abstract

The present invention relates to the technical field of potential conversion, and in particular to a precise positioning conversion switch with a self-locking function; the switch comprises an upper panel (1), a lower panel (2), a bottom panel (3) and a central axis (4) hinged between the three panels; a potential conversion device is installed between the upper panel (1) and the lower panel (2); a positioning structure for limiting the rotation position of the central axis (4) is installed between the lower panel (2) and the bottom panel (3); a manual device for driving the central axis (4) to rotate and a self-locking structure for locking the manual device are installed on the lower end surface of the bottom panel (3); the device can achieve precise positioning switching, and the switching position does not require manual control, which greatly enhances the accuracy of positioning; during the conversion process, the switching is performed by a rotating arm mechanism (the rotating arm mechanism is composed of a torque connecting handle, a bearing and a tension spring), and no jamming occurs in the middle; the self-locking structure is provided to prevent the device from shaking after positioning; the upper and lower parts of the potential conversion device achieve separation of high pressure and low pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of potential conversion, and in particular to a precise positioning conversion switch with a self-locking function. Background Art

[0002] The potential switching device converts the corresponding potential according to different work requirements. The traditional switching method is to manually rotate the movable copper bar to achieve potential switching. Since it is manually rotated and positioned, the positioning of the device after rotation is inaccurate. During the rotation process, the positions of the movable and fixed blades are prone to deviation. At the same time, the potential switching cannot effectively separate the high and low potentials. Therefore, a new type of conversion switch needs to be designed. Summary of the Invention

[0003] In order to effectively solve the problems in the above background technology, the present invention proposes a precise positioning transfer switch with a self-locking function. The specific technical solution is as follows:

[0004] A precise positioning switch with a self-locking function comprises an upper panel (1), a lower panel (2), a bottom panel (3), and a central axis (4) hinged between the three panels; a potential conversion device is installed between the upper panel (1) and the lower panel (2); a positioning structure for limiting the rotation position of the central axis (4) is installed between the lower panel (2) and the bottom panel (3); a manual device for driving the central axis (4) to rotate and a self-locking structure for locking the manual device are installed on the lower end surface of the bottom panel (3);

[0005] Preferably, the upper panel (1) and the lower panel (2) are connected via a plurality of screw rods (5); the potential conversion device comprises: a plurality of copper bars mounted on the screw rods (5) and respectively located on both sides of the central axis (4); and a rotating copper bar (6) fixedly mounted on the central axis (4);

[0006] The copper bars on both sides of the central axis (4) can be installed in several layers, and each layer of copper bars on both sides is on the same horizontal plane, and each layer of copper bars is fixed to each other by an isolation sleeve (5-1) installed on the screw rod (5);

[0007] The rotating copper bar (6) is installed into a double-layer structure for cooperating with and clamping the copper bars of each layer on both sides of the central axis (4), and the installed rotating copper bar (6) is cooperatingly installed in the insulating box high cover (6-1), and the insulating box high covers (6-1) of each layer are fixed to each other;

[0008] Preferably, the copper bars located on both sides of the central axis (4) can be divided into four layers;

[0009] The left end of the first layer is a three-contact copper bar (7), and the right end opposite to it is provided with three relatively independent copper bars, with side copper bars (7-1) on both sides and a middle copper bar (7-2) in the middle; when the rotating copper bar (6) contacts one of the contacts in the three-contact copper bar (7), the other end can contact the corresponding independent copper bar;

[0010] The copper bars at the left and right ends of the second layer have the same shape as the copper bars at the left and right ends of the first layer, and are thinner than the corresponding copper bars of the first layer; and the two side copper bars (7-3) are connected by a short-circuit copper bar (7-4);

[0011] The left and right sides of the third and fourth layers are both single-contact copper bars, and are located at positions corresponding to the middle contacts of the upper copper bars.

[0012] The middle copper bars of the four-layer copper bars are connected to each other via short-circuit copper tubes (7-6);

[0013] Preferably, the positioning structure comprises a flower plate (8-1) fixedly mounted on the central axis (4), a torque connecting handle (8-2) hinged at one end to the lower panel (2); the other end of the torque connecting handle (8-2) is hooked on a tension spring (8-3), the other end of the tension spring (8-3) is mounted on the lower panel (2), and a bearing (8-4) is mounted in the middle of the torque connecting handle (8-2); the flower plate (8-1) is provided with three positioning grooves (8-1-1) capable of cooperating with the bearing (8-4);

[0014] Preferably, the torque connection handle (8-2) is a double-layer structure, and the bearing (8-4) is installed between the double-layer structure;

[0015] Preferably, a micro-motion support plate (9-1) is fixedly mounted on the lower panel (2), and the micro-motion support plate (9-1) is located at the lower end of the torque connection handle (8-2); a large copper wire cover (9-2) is fixedly mounted on the central axis (4), and the large copper wire cover (9-2) is located at the lower end of the flower plate (8-1); and a plurality of micro switches (9-3) capable of contacting and cooperating with the large copper wire cover (9-2) are mounted on the micro-motion support plate (9-1);

[0016] Preferably, the large copper wire cover (9-2) is a circular structure, and a concave platform (9-2-1) is provided on its side wall, and the micro switch (9-3) is respectively installed at the position of the concave platform (9-2-1) and the side wall of the cover;

[0017] Preferably, the manual device comprises a handle connecting rod (10-1) mounted on the central axis (4) and located on the lower end surface of the bottom panel (3); the handle connecting rod (10-1) is provided with three positioning holes (10-1-1), and the positioning holes (10-1-1) can cooperate with the handle limiter (10-2) mounted on the bottom panel (3); the end of the handle connecting rod (10-1) is rotatably connected to the handle (10-3);

[0018] Preferably, the self-locking structure comprises a lock core (11-1) hinged on the lower panel (2) and the bottom panel (3); a stop handle (11-2) is installed at the end of the lock core (11-1), and one end of the stop handle (11-2) is provided with a lock hook capable of cooperating with three limit slots (10-1-2) provided on the handle connecting rod (10-1).

[0019] (11-2-1), a hand-operated block (11-2-2) is provided at the other end, and an elastic rebound device is installed at the end of the lock core (11-1);

[0020] The beneficial effects of the present invention are: 1. The device can achieve precise positioning of positioning switching, and the switching position does not require manual control, which greatly enhances the accuracy of positioning; 2. During the conversion process, the rotating arm mechanism (the rotating arm mechanism is composed of a torque connecting handle, a bearing and a tension spring) is used for positioning, and there is no jamming in the middle; 3. The self-locking structure is set to prevent the device from shaking after positioning; 4. The upper and lower parts of the potential conversion device realize the separation of high voltage and low voltage. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 This is the main view of the structure of the present invention;

[0023] Figure 3 It is a partial schematic diagram of the present invention;

[0024] Figure 4 A partial schematic diagram of the present invention;.

[0025] Figure 5 This is a schematic diagram of the installation of the rotating copper busbar of the present invention;

[0026] Figure 6 This is a schematic diagram of the positioning structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the positioning structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the installation position of the micro-motion device of the present invention;

[0029] Figure 9It is a structural schematic diagram of the self-locking mechanism and manual device of the present invention;

[0030] Figure 10 It is a structural schematic diagram of the self-locking mechanism and manual device of the present invention;

[0031] Figure 11 This is a schematic diagram of the high cover structure of the insulation box of the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of the rotating copper busbar of the present invention;

[0033] Figure 13 This is a schematic diagram of the structure of the three-contact copper busbar of the present invention;

[0034] Figure 14 Schematic diagram of the copper busbar and short-circuit copper tube in the present invention;

[0035] Figure 15 This is a schematic diagram of the installation of a double-layer rotating copper busbar of the present invention;

[0036] Figure 16 This is a schematic diagram of the large copper wire capping structure of the present invention;

[0037] Figure 17 This is a schematic diagram of the gear lever structure of the present invention;

[0038] In the figure: upper panel 1, lower panel 2, bottom panel 3, middle shaft 4, screw 5, isolation sleeve 5-1, rotating copper busbar 6, insulation box high cover 6-1, contact wall 6-2, three-contact copper busbar 7, side copper busbar 7-1, middle copper busbar 7-2, side copper busbar 7-3, shorting copper busbar 7-4, single contact copper busbar 7-5, shorting copper tube 7-6, flower plate 8-1, positioning groove 8-1-1, torque connection handle 8-2, tension spring 8-3, Bearing 8-4, micro-switch support plate 9-1, large copper wire cover 9-2, recessed platform 9-2-1, micro switch 9-3, handle connecting rod 10-1, positioning hole 10-1-1, limit slot 10-1-2, handle limit 10-2, connecting handle 10-3, lock cylinder 11-1, gear lever 11-2, lock hook 11-2-1, hand shift block 11-2-2, unlocking shift block 11-3, torsion spring 11-4. DETAILED DESCRIPTION

[0039] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods;

[0040] A precise positioning transfer switch with a self-locking function comprises an upper panel 1, a lower panel 2, a bottom panel 3 and a central axis 4 hinged between the three panels; a potential conversion device is installed between the upper panel 1 and the lower panel 2; a positioning structure for limiting the rotational position of the central axis 4 is installed between the lower panel 2 and the bottom panel 3; a manual device for driving the central axis 4 to rotate and a self-locking structure for locking the manual device are installed on the lower end surface of the bottom panel 3.

[0041] The upper panel 1 and the lower panel 2 are connected by a plurality of screws 5; the potential conversion device includes: a plurality of copper bars mounted on the screws 5 and located on both sides of the central axis 4, and a rotating copper bar 6 fixedly mounted on the central axis 4;

[0042] The copper bars on both sides of the central axis 4 can be installed in several layers, and each layer of copper bars on both sides is on the same horizontal plane. The copper bars of each layer are fixed to each other by the isolation sleeve 5-1 installed on the screw 5;

[0043] The rotating copper bar 6 is installed into a double-layer structure for cooperating with the copper bars of each layer on both sides of the central axis 4, and the rotating copper bar 6 after installation is cooperating with the insulation box high cover 6-1; the rotating copper bar 6 of the double-layer structure is fixed together by screws with two rotating copper bars 6 of the same structure, and the rotating copper bar 6 after installation can be completely buckled inside the insulation box high cover 6-1, and the copper bars of each layer can cooperate with the rotating copper bar, and the rotating copper bars of each layer are layered by stacking the insulation box high cover 6-1 on each other; the center of the rotating copper bar 6 is a circular structure, and two contact walls 6-2 are symmetrically provided on the side walls on both sides. The cooperation between the rotating copper bar and the copper bar is achieved by clamping the copper bar by the upper and lower contact walls 6-2;

[0044] The copper bars on both sides of the central axis 4 can be divided into four layers;

[0045] The left end of the first layer is a three-contact copper bar 7. The three-contact copper bar 7 is an integrated structure and is fixed by cooperating with multiple screws 5. The right end opposite the three-contact copper bar 7 is provided with three relatively independent copper bars, with side copper bars 7-1 on both sides and a middle copper bar 7-2 in the middle. When the rotating copper bar 6 contacts one of the contacts in the three-contact copper bar 7, its other end can contact the corresponding independent copper bar.

[0046] The copper bars on the left and right ends of the second layer have the same shape as those on the left and right ends of the first layer, but are thinner than the corresponding copper bars on the first layer. The two side copper bars 7-3 are connected by a shorting copper bar 7-4. The difference between the first and second layers lies in the thickness of the copper bars, which is adjusted according to the current requirements.

[0047] The left and right sides of the third and fourth layers are both equipped with single-contact copper bars 7-5, which are located at positions corresponding to the middle contacts of the upper copper bars. The middle copper bars of the four layers are connected to each other via short-circuit copper tubes 7-6. When in use, the rotating copper bars are driven by the rotating shaft. Since the high covers of the insulating boxes of each layer are fixed to each other, the rotating copper bars of each layer can achieve unified rotation and positioning. The rotating copper bars cooperate with the copper bars at different positions on both sides to achieve potential conversion. In addition, each copper bar is provided with a contact point, which can be adjusted according to different needs.

[0048] The positioning structure includes a flower plate 8-1 fixedly mounted on the central axis 4, and a torque connecting handle 8-2 hinged at one end to the lower panel 2; the other end of the torque connecting handle 8-2 is hooked on a tension spring 8-3, the other end of which is mounted on the lower panel 2, and a bearing 8-4 is mounted in the middle of the torque connecting handle 8-2; the flower plate 8-1 is provided with three positioning grooves 8-1-1 capable of cooperating with the bearing 8-4; the torque connecting handle 8-2 is a double-layer structure, and the bearing 8-4 is mounted between the double-layer structures;

[0049] When in the normal working position, the positioning groove 8-1-1 of the flower plate 8-1 cooperates with the bearing 8-4. When the rotating shaft 4 drives the flower plate 8-1 to rotate, the torque connecting handle 8-2 will rotate around the hinge point driven by the bearing 8-4, and the tension spring 8-3 will give the torque connecting handle 8-2 a rebound force. When the bearing 8-4 rotates out of the positioning groove and slides to the next positioning groove, the tension spring 8-3 will play a role of boosting, and through the rebound force of the tension spring, the bearing 8-4 is matched with the rotated positioning groove, and the flower plate 8-1 is positioned under the action of the bearing 8-4.

[0050] A micro-motion support plate 9-1 is fixedly installed on the lower panel 2, and the micro-motion support plate 9-1 is located at the lower end of the torque connecting handle 8-2; a large copper wire cover 9-2 is fixedly installed on the central axis 4, and the large copper wire cover 9-2 is located at the lower end of the flower plate 8-1, and a number of micro-switches 9-3 that can contact and cooperate with the large copper wire cover 9-2 are installed on the micro-motion support plate 9-1; the function of the micro-switch is to judge the position of the central axis through the feedback of the electrical signal generated by the contact between the contacts of the micro-switch and the large copper wire cover 9-2, and then judge the relative position of the rotating copper busbar, and monitor the fixed cooperation between the rotating copper busbar and the copper busbars on both sides.

[0051] The large copper wire cover 9-2 is a circular structure with a recessed platform 9-2-1 on its side wall. The micro switch 9-3 is installed on the recessed platform 9-2-1 and the side wall of the cover respectively. The micro switch is installed on the side wall of the cover and in the recessed platform. The position of the original central axis is initially determined by the signal feedback from the contact between the side wall of the cover and the micro switch. The offset of the central axis is determined by the signal feedback from the micro switch in the recessed platform, and then data analysis and position judgment are made.

[0052] The manual device includes a handle connecting rod 10-1 installed on the central axis 4 and located at the lower end surface of the bottom panel 3, and three positioning holes 10-1-1 are provided on the handle connecting rod 10-1, and the positioning holes 10-1-1 can cooperate with the handle limit 10-2 installed on the bottom panel 3; the end of the handle connecting rod 10-1 is rotated to connect the handle 10-3; when the handle 10-3 needs to be used, the handle 10-3 is turned out, and the staff drives the handle to rotate, thereby driving the central axis to rotate; after rotating to the appropriate position, the handle 10-3 is turned in and pushed back to its original position; three hole slots are provided on the central axis limit handle, and when the handle connecting rod 10-1 is rotated to a position, the limit handle and the handle connecting rod are fixed to the bottom panel by installing fastening screws in the hole slots, and the limit handle is an additional locking and positioning device, which is used to further lock the central axis;

[0053] The self-locking structure includes a lock core 11-1 hinged on the lower panel 2 and the bottom panel 3; a gear lever 11-2 is installed at the end of the lock core 11-1, one end of the gear lever 11-2 is provided with a lock hook 11-2-1 that can cooperate with the three limit slots 10-1-2 set on the handle connecting rod 10-1, and the other end is provided with a hand-shift block 11-2-2; an elastic rebound device is installed at the end of the lock core 11-1; the rebound device includes an unlocking block 11- 3. A torsion spring 11-4 is provided on the unlocking block 11-3. When in use, the user moves the hand shift block 11-2-2 to disengage the lock hook 11-2-1 of the gear lever 11-2 from the limit slot 10-1-2 to unlock the vehicle. The user then adjusts the center axis by rotating the handle 10-3. When the center axis is adjusted to the appropriate position, the hand shift block 11-2-2 is released. The torsion spring 11-4 drives the unlocking block 11-3 to rotate, causing the lock hook 11-2-1 to engage in the corresponding limit slot 10-1-2 to achieve self-locking.

[0054] It should be noted that the three potential contacts of the potential conversion device correspond to the three positioning structures of the flower plate and the self-locking structure; the self-locking structure and the positioning structure are both used to lock the three potentials after matching;

[0055] Specific work processes;

[0056] When the potential needs to be converted, the staff will turn the hand-shift block to release the self-locking function, and then turn the handle. The handle will drive the central axis to rotate, and the rotation of the central axis will drive the rotating copper busbar to realize the potential conversion. After one potential is converted, the flower plate will limit the central axis to ensure the coordination of the rotating copper busbar with the copper buses on both sides, and then release the hand-shift block to allow the lock hook to engage in the limit slot to realize self-locking.

[0057] The beneficial effects of the present invention are: 1. The device can achieve precise positioning of positioning switching, and the switching position does not require manual control, which greatly enhances the accuracy of positioning; 2. The tension spring is used for positioning during the conversion process, and there is no jamming in the middle; 3. The self-locking structure is set to prevent the device from shaking after positioning; 4. The upper and lower parts of the potential conversion device realize the separation of high voltage and low voltage.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the invention.

Claims

1. A precise positioning transfer switch with self-locking function, characterized in that: The invention comprises an upper panel (1), a lower panel (2), a bottom panel (3) and a central axis (4) hinged between the three panels; a potential conversion device is installed between the upper panel (1) and the lower panel (2); a positioning structure for limiting the rotation position of the central axis (4) is installed between the lower panel (2) and the bottom panel (3); a manual device for driving the central axis (4) to rotate and a self-locking structure for locking the manual device are installed on the lower end surface of the bottom panel (3); The upper panel (1) and the lower panel (2) are connected via a plurality of screw rods (5); the potential conversion device comprises: a plurality of copper bars mounted on the screw rods (5) and respectively located on both sides of the central axis (4); and a rotating copper bar (6) fixedly mounted on the central axis (4); The copper bars on both sides of the central axis (4) can be installed in several layers, and each layer of copper bars on both sides is on the same horizontal plane, and each layer of copper bars is fixed to each other by an isolation sleeve (5-1) installed on the screw rod (5); The rotating copper bar (6) is installed into a double-layer structure for cooperating with and clamping the copper bars of each layer on both sides of the central axis (4), and the installed rotating copper bar (6) is cooperatingly installed in the insulating box high cover (6-1), and the insulating box high covers (6-1) of each layer are fixed to each other; The copper bars on both sides of the central axis (4) can be divided into four layers; The left end of the first layer is a three-contact copper bar (7), and the right end opposite to it is provided with three relatively independent copper bars, with side copper bars (7-1) on both sides and a middle copper bar (7-2) in the middle; when the rotating copper bar (6) contacts one of the contacts in the three-contact copper bar (7), the other end can contact the corresponding independent copper bar; The copper bars at the left and right ends of the second layer have the same shape as the copper bars at the left and right ends of the first layer, and are thinner than the corresponding copper bars of the first layer; and the two side copper bars (7-3) are connected by a short-circuit copper bar (7-4); The left and right sides of the third and fourth layers are both single-contact copper bars, and are located at positions corresponding to the middle contacts of the upper copper bars. The middle copper bars of the four-layer copper bars are connected to each other via short-circuit copper tubes (7-6); The positioning structure comprises a flower plate (8-1) fixedly mounted on a central axis (4), and a torque connecting handle (8-2) hinged at one end to a lower panel (2); the other end of the torque connecting handle (8-2) is hooked on a tension spring (8-3), the other end of which is mounted on the lower panel (2); a bearing (8-4) is mounted in the middle of the torque connecting handle (8-2); and three positioning grooves (8-1-1) capable of matching with the bearing (8-4) are provided on the flower plate (8-1).

2. The precise positioning transfer switch with self-locking function according to claim 1, characterized in that: The torque connection handle (8-2) is a double-layer structure, and the bearing (8-4) is installed between the double-layer structures.

3. The precise positioning transfer switch with self-locking function according to claim 1, characterized in that: A micro-motion support plate (9-1) is fixedly mounted on the lower panel (2), and the micro-motion support plate (9-1) is located at the lower end of the torque connection handle (8-2); a large copper wire cover (9-2) is fixedly mounted on the central axis (4), and the large copper wire cover (9-2) is located at the lower end of the flower plate (8-1); and a plurality of micro-switches (9-3) capable of contacting and cooperating with the large copper wire cover (9-2) are mounted on the micro-motion support plate (9-1).

4. The precise positioning transfer switch with self-locking function according to claim 3, characterized in that: The large copper wire cover (9-2) is a circular structure, and a concave platform (9-2-1) is provided on its side wall. The micro switch (9-3) is respectively installed on the concave platform (9-2-1) and the side wall of the cover.

5. The precise positioning transfer switch with self-locking function according to claim 1, characterized in that: The manual device comprises a handle connecting rod (10-1) mounted on a central axis (4) and located on the lower end surface of a bottom panel (3); the handle connecting rod (10-1) is provided with three positioning holes (10-1-1), and the positioning holes (10-1-1) can cooperate with handle limiters (10-2) mounted on the bottom panel (3); and the end of the handle connecting rod (10-1) is rotatably connected to a handle (10-3).

6. The precise positioning transfer switch with self-locking function according to claim 1, characterized in that: The self-locking structure comprises a lock core (11-1) hinged on a lower panel (2) and a bottom panel (3); a shift lever (11-2) is mounted on the end of the lock core (11-1); one end of the shift lever (11-2) is provided with a lock hook (11-2-1) capable of cooperating with three limit slots (10-1-2) arranged on a handle connecting rod (10-1); the other end is provided with a hand shift block (11-2-2); and an elastic rebound device is mounted on the end of the lock core (11-1).

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