An electrical cabinet door unlocking mechanism

Abstract

The invention discloses an electrical cabinet door unlocking mechanism, which includes a lifting one-axis assembly, a lifting two-axis assembly, a padlock assembly and an elastic cross-axis assembly, the lifting one-axis assembly includes a key plate at the bottom, a bottom spring is provided on the upper part of the key plate, a first limit card is provided on the upper part of the bottom spring, an upper spring is provided on the upper part of the first limit card, the first main shaft passes through the connecting rod seat and is fixed to the key plate; the upper end of the lifting two-axis assembly is connected to one end of the connecting rod seat with a first axis pin, the lower end of the first axis pin is provided with a block assembly, the lower part of the block assembly is provided with a base part, the rear end of the base part is connected to the first main shaft, the padlock assembly includes a padlock plate, one end of the padlock plate is provided with a padlock, and the other end is connected to the second main shaft, the lower end of the padlock is provided with a blocking hole plate, and the lower end of the blocking hole plate is provided with a padlock spring; the upper parts of the lifting one-axis assembly and the lifting two-axis assembly are placed in the top shell, and the unlocking mechanism can be used to manually open the lock of the electrical cabinet door.

Description

Technical Field

[0001] The present invention relates to the technical field of medium-voltage electrical complete switchgear and control equipment, and in particular to the field of an electrical cabinet door unlocking mechanism. Background Art

[0002] In the existing market, electrical cabinet doors in medium-voltage electrical equipment do not have multiple locking mechanisms. At the same time, if conventional electronic locks are used to lock the cabinet doors, once the electronic control fails and the electrical cabinet doors cannot be opened, if there is a lack of another set of backup unlocking mechanisms, it will cause endless troubles to the work. Not only will there be a great danger, but it may also cause a lot of losses to the company. In order to solve this problem, a backup unlocking mechanism is needed. This mechanism can be connected with the configured mechanical and electrical locks at the same time to produce the functions of unlocking and locking. This unlocking mechanism can mechanically open the cabinet door lock at any time. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides an electrical cabinet door unlocking mechanism, which includes a lifting shaft assembly, a lifting two-shaft assembly, a padlock assembly and an elastic horizontal shaft assembly, the lifting shaft assembly includes a key plate at the bottom, the upper part of the key plate is provided with a bottom spring, the upper part of the bottom spring is provided with a first limit card, the upper part of the first limit card is provided with an upper spring, the upper part of the upper spring is provided with an upper limit plate, the upper part of the upper limit plate is provided with a connecting rod seat, the first main shaft passes through the connecting rod seat and is fixed to the bottom end surface of the key plate; the upper end of the lifting two-shaft assembly is connected to one end of the connecting rod seat with a first shaft pin, and the lower end of the first shaft pin is provided with a stop The block assembly is provided with a base portion at the lower part of the block assembly, the rear end of the base portion is connected to the first main shaft, and the second main shaft passes through the first shaft pin and is fixed to the base portion; the padlock assembly includes a padlock plate, one end of the padlock plate is provided with a padlock, and the other end is connected to the second main shaft, the lower end of the padlock is provided with a baffle plate, and the lower end of the baffle plate is provided with a padlock spring; the elastic cross-axis assembly includes a spring seat, a limiting spring is provided in the spring seat, the cross-axis passes through the spring seat and the limiting spring, and is fixed to the lower shell; the upper parts of the lifting one-axis assembly and the lifting two-axis assembly are placed in the top shell, and one end of the connecting rod seat is provided with a connecting rod limiting portion.

[0004] Furthermore, a rear plate is provided at the rear of the top shell, and the bottom end surface of the top shell is connected to the top end surface of the lower shell. The rear plate seals the rear of the top shell to prevent dust from entering. At the same time, the connecting rod limiter is also fixed on the rear plate. There are electronic locks and program locks on both sides of the top shell, and lock core holes are provided on both sides of the top shell. The lock core holes can accommodate the electronic lock core and program lock core on both sides. When the second main shaft in the top shell descends and the block assembly also descends, the electronic lock core and the program lock core extend into the lock core hole and are placed above the block assembly to block the rise of the block assembly, thereby realizing the locking function.

[0005] Furthermore, the first main shaft and the connecting rod seat are connected by a second axle pin, and a second limit clamp is provided at the upper end of the upper limit plate. The connecting rod seat can move up and down with the second axle pin as the axis; the second limit clamp can position the upper limit plate to prevent the upper spring at the lower end from exceeding the position of the upper limit plate.

[0006] Furthermore, the block assembly includes a circular tube portion, and a right block lock portion and a left block lock portion are provided on both sides of the circular tube portion. A first bolt is provided at the front of the circular tube portion. The right block lock portion and the left block lock portion block the program lock core on the right and the electronic lock core on the left. After the first bolt locks the second main shaft, the right block lock portion and the left block lock portion cannot move up and down. When the first bolt is loosened, the second main shaft is not locked and can be raised and lowered. When the second main shaft rises, it drives the padlock assembly to rise, opens the padlock, and the electrical cabinet door can be opened in an emergency.

[0007] Furthermore, the key plate is provided with a key hole, which is used to insert the key of the electrical cabinet door lock. When the key passes through the key hole and reaches the upper end of the spring seat, the spring seat tilts upward under the action of the internal limit spring, and the first main shaft descends. When the key is pulled out of the key hole, the limit spring rebounds when there is no pressure to block the first main shaft and prevent it from descending.

[0008] Furthermore, a weighted portion is provided at the lower end of the base portion, and the weighted portion increases the weight of the bottom of the second main shaft, making it easier for the second main shaft to sink.

[0009] Furthermore, the middle of the padlock spring passes through the padlock piece, one end of the padlock spring is close to the baffle plate, and the other end passes through the hole on the padlock piece to fix it. The other end of the padlock spring passes through the hole on the padlock piece to position the padlock spring to prevent it from falling from the padlock piece. The padlock bar on the electrical cabinet door is provided with a hole above and below. When the hole of the padlock piece overlaps with the hole of the padlock bar on the electrical cabinet door, the padlock passes through the hole to lock. When the padlock passes through the lower hole on the padlock bar to lock, the second main shaft sinks, and the electronic lock and the program lock are in a locked state. When the padlock passes through the upper hole on the padlock bar to lock, the second main shaft rises, and the electronic lock and the program lock are in an unlocked state. The baffle plate plays a role in preventing water splashing and electricity leakage.

[0010] Furthermore, the connecting rod limiting part has a second bolt, a first nut and a second nut. The connecting rod seat is placed at the tail end of the second bolt. The second nut and the first nut are locked to the two end faces of the rear plate. The connecting rod seat is placed at the tail end of the second bolt, so that the second bolt limits the connecting rod seat downward to prevent the connecting rod seat from sinking. The overlapping length of the second bolt and the connecting rod seat is directly related to the height of the lifting and lowering shaft assembly.

[0011] Compared with the prior art, the beneficial effect of using the electric cabinet door unlocking mechanism is: on the basis of the original electronic lock and program lock, a padlock and emergency unlocking function are added; when the key passes through the keyhole and reaches the upper end of the spring seat, the spring seat tilts upward under the action of the internal limit spring, and the first main shaft descends. When it descends to a certain height, it is blocked by the connecting rod limit part. At this time, under the traction of the force, the second main shaft descends under the action of the shaft pin lever on the connecting rod seat. When it descends to a certain height, the electronic lock and program lock are released. When the sequence lock is started, the electronic lock cylinder and the program lock cylinder are extended onto the block assembly to block the block assembly from rising, and the locking is successful. At the same time, when the second spindle drops to a certain height, the padlock connected to it also drops to a position where it can be locked with the lower hole on the padlock bar. At this time, the manual padlock can also be locked. When the electronic lock and the program lock fail, the first bolt of the block assembly can be loosened to allow the second spindle locked by the first bolt to rise upward, and at the same time drive the padlock assembly to rise, open the padlock, and the electrical cabinet door can be opened in an emergency to avoid losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments of the present invention.

[0013] Figure 1 Shown is an assembled perspective view of the present invention.

[0014] Figure 2 Shown is a perspective view of a belt supporting device according to the present invention.

[0015] Figure 3 Shown is a three-dimensional exploded view of a belt supporting device of the present invention.

[0016] Figure 4 Shown is a three-dimensional view of the internal main transmission parts of the present invention.

[0017] Figure 5 A schematic diagram showing the state of cooperation between the present invention and an electronic lock is shown.

[0018] Figure 6 The top view of the present invention is shown.

[0019] Figure 7 A cross-sectional view of the present invention is shown.

[0020] Figure 8 An enlarged schematic diagram of portion C of the present invention is shown. DETAILED DESCRIPTION

[0021] The following will disclose embodiments of the present invention with reference to the drawings. To simplify the drawings, some commonly used structures and components will be shown in the drawings in a simple schematic manner.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and do not specifically refer to an order or ranking, nor are they intended to limit the present disclosure. These terms are merely used to distinguish components or operations described with the same technical terminology, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with one another.

[0024] according to Figure 1-Figure 7 As shown, an embodiment of the present invention provides an electrical cabinet door unlocking mechanism, which includes a lifting shaft assembly 1, a lifting shaft assembly 2, a padlock assembly 9 and an elastic horizontal shaft assembly 4. The lifting shaft assembly 1 includes a key plate 107 at the bottom, a bottom spring 106 is provided on the upper part of the key plate 107, a first limit card 105 is provided on the upper part of the bottom spring 106, the first limit card 105 limits the upward height of the first main shaft 101, and the upper part of the first limit card 105 is provided with an upper Spring 104, the upper part of the upper spring 104 is provided with an upper limit plate 103, the upper limit plate 103 limits the upward height of the upper spring 104, the upper part of the upper limit plate 103 is provided with a connecting rod seat 102, the first main shaft 101 passes through the connecting rod seat 102 and is fixed to the bottom end surface of the key plate 107; the upper end of the lifting two-axis assembly 2 is connected to one end of the connecting rod seat 102 with the first shaft pin 22, the lower end of the first shaft pin 22 is provided with a stopper assembly 23, and the lower part of the stopper assembly 23 is provided The back end 241 of the base portion 24 is connected to the first main shaft 101, and the second main shaft 21 passes through the first shaft pin 22 and is fixed to the base portion 24; the padlock assembly 9 includes a padlock piece 92, one end of the padlock piece 92 is provided with a padlock 91, and the other end is connected to the second main shaft 21, and the back end of the padlock 91 is provided with a baffle plate 93, and the back end of the baffle plate 93 is provided with a padlock spring 94. When the padlock 91 is not opened, the padlock piece 92 cannot move upward, and the first main shaft 21 is connected to the second main shaft 21. The second main shaft 21 cannot rise; the elastic cross-axis assembly 4 includes a spring seat 41, a limit spring 43 is arranged in the spring seat 41, the cross-axis 42 passes through the spring seat 41 and the limit spring 43, and is fixed in the side hole 81 in the lower shell 8; the upper part of the lifting one-axis assembly 1 and the lifting two-axis assembly 2 is placed in the top shell 5, the bottom of the top shell 5 is fixed to the upper end surface of the lower shell 6, and a connecting rod limiting part 16 is provided at one end of the connecting rod seat 102, and the connecting rod limiting part 16 limits the downward movement of the connecting rod seat 102.

[0025] A rear plate 15 is provided at the rear of the top shell 5. The bottom surface of the top shell 5 is connected to the top surface of the lower shell 8. The rear plate 15 seals the rear of the top shell 5 to prevent dust from entering. The top shell 5 has lock core holes 51 on both sides. The lock core holes 51 can accommodate the electronic lock core 61 and the program lock core 71 on both sides. At the same time, the connecting rod limiter 16 is also fixed to the rear plate 15.

[0026] The first main shaft 101 and the connecting rod seat 102 are connected by the second shaft pin 109. The upper end of the upper limit plate 103 is provided with a second limit clamp 108. The connecting rod seat 102 moves up and down with the second shaft pin 109 as the axis; the second limit clamp 108 positions the upper limit plate 103 to prevent the upper spring 104 at the lower end from exceeding the position of the upper limit plate 103.

[0027] The block assembly 23 includes a circular tube portion 232, and a right blocking lock portion 231 and a left blocking lock portion 233 are provided on both sides of the circular tube portion 232. A first bolt 234 is provided at the front of the circular tube portion 232. The right blocking lock portion 231 blocks the program lock cylinder 71 on the right side, and the left blocking lock portion 233 blocks the electronic lock cylinder 61 on the left side. After the first bolt 234 locks the second main shaft 21, the right blocking lock portion 231 and the left blocking lock portion 233 cannot be moved up and down. When the first bolt 234 is loosened, the second main shaft 21 is not locked and is lifted and lowered. When the second main shaft 21 rises, the padlock assembly 9 is driven to rise at the same time, and the padlock 91 is opened, so that the electrical cabinet door can be opened in an emergency.

[0028] The key plate 107 is provided with a key hole 1071, which is used to insert the key 31 of the electrical cabinet door lock. When the key 31 fixed on the cabinet door 3 passes through the key hole 1071 and reaches the upper end of the spring seat 41, the spring seat 41 tilts upward under the action of the internal limit spring 43, and the first main shaft 101 descends. When the key 31 is pulled out of the key hole, the limit spring rebounds when there is no pressure to block the first main shaft and prevent it from descending.

[0029] A weighted portion 25 is provided at the lower end of the base portion 24 , and the weighted portion increases the weight of the bottom of the second main shaft 21 , making it easier for the second main shaft 21 to sink.

[0030] The middle of the padlock spring 94 passes through the padlock piece 92, one end of the padlock spring 94 is in contact with the baffle plate 93, and the other end passes through the hole on the padlock piece 92 for fixing. The other end of the padlock spring 94 is fixed to the hole on the padlock piece 92 to position the padlock spring 94 and prevent it from falling from the padlock piece 92. The padlock bar 10 provided on the electrical cabinet is provided with a hole above and below. When the hole of the padlock piece 92 overlaps with the hole of the padlock bar 10, the padlock 91 passes through the hole for locking. When the padlock 91 passes through the lower hole on the padlock bar 10 for locking, the second main shaft 21 sinks, and the electronic lock 5 and the program lock 6 are in the locked state. When the padlock 91 passes through the upper hole on the padlock bar 10 for locking, the second main shaft 21 rises, and the electronic lock 5 and the program lock 6 are in the unlocked state. The baffle plate 93 plays a role in preventing water splashing and electric leakage.

[0031] The connecting rod limiting portion 16 has a second bolt 161, a first nut 162 and a second nut 163. The connecting rod seat 102 is placed at the tail end of the second bolt 161. The second nut 163 and the first nut 162 lock the rear plate. The connecting rod seat 102 is placed at the tail end of the second bolt 161, so that the second bolt 161 limits the downward position of the connecting rod seat 102 to prevent the connecting rod seat 102 from sinking excessively. The overlapping length of the second bolt and the connecting rod seat 102 is directly related to the height of the lifting shaft assembly 1.

[0032] The working principle of the present invention is as follows: when the key 31 on the cabinet door 3 passes through the keyhole 1071 and reaches the upper end of the spring seat 41, the spring seat 41 tilts upward under the action of the internal limit spring 43, and the first main shaft 101 descends. When it descends to a certain height, it is blocked by the connecting rod limit portion 16. At this time, the shaft pin 109 plays the role of a lever. Under the traction of the force, the second main shaft 21 descends under the tension on the connecting rod seat 102. When it descends to a certain height, the electronic lock 6 and the program lock 7 are automatically started, and the electronic lock cylinder 61 and the program lock cylinder 71 are extended into the block assembly 23, which blocks the block assembly 23 from rising. Therefore, the electronic lock 6 and the program lock 7 complete the locking action. At the same time, when the second main shaft 21 descends to a certain height, the connecting rod 16 is connected to the second main shaft 21. When the second main shaft 21 rises, it also drives the padlock assembly 9 to rise, and opens the padlock 91. Then, the electrical cabinet door can be opened in an emergency to avoid greater losses.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electrical cabinet door unlocking mechanism, characterized in that: It comprises a lifting shaft assembly (1), a lifting shaft assembly (2), a padlock assembly (9) and an elastic transverse shaft assembly (4), wherein the lifting shaft assembly (1) comprises a key plate (107) at the bottom, a bottom spring (106) is provided on the top of the key plate (107), a first limit card (105) is provided on the top of the bottom spring (106), an upper spring (104) is provided on the top of the first limit card (105), an upper limit plate (103) is provided on the top of the upper spring (104), and a connecting rod seat (102) is provided on the top of the upper limit plate (103). The first main shaft (101) passes through the connecting rod seat (102) and is fixed to the key plate (107); the upper end of the lifting two-axis assembly (2) is connected to one end of the connecting rod seat (102) by a first shaft pin (22), the lower end of the first shaft pin (22) is provided with a stopper assembly (23), the lower part of the stopper assembly (23) is provided with a base portion (24), the rear end (241) of the base portion (24) passes through the first main shaft (101), and the second main shaft (21) passes through the first shaft pin (22) and is fixed to the base portion (24); the padlock assembly (9) includes a padlock A locking plate (92), one end of the padlock plate (92) is provided with a padlock (91), and the other end is connected to the second main shaft (21), the lower end of the padlock (91) is provided with a baffle plate (93), and the lower end of the baffle plate (93) is provided with a padlock spring (94); the elastic transverse axis component (4) includes a spring seat (41), a limit spring (43) is provided in the spring seat (41), and the transverse axis (42) passes through the spring seat (41) and the limit spring (43) and is fixed to the lower shell (8); the upper part of the lifting axis component (1) and the lifting axis component (2) is provided In the top shell (5), one end of the connecting rod seat (102) is provided with a connecting rod limiting portion (16), the rear portion of the top shell (5) is provided with a rear plate (15), the two side surfaces of the top shell (5) are provided with lock core holes (51), the lock core holes (51) can accommodate the insertion of the electronic lock core (61) and the program lock core (71) on both sides, the bottom end surface of the top shell (5) is connected to the top end surface of the lower shell (8), the first main shaft (101) and the connecting rod seat (102) are connected by a second shaft pin (109), and the upper end of the upper limit plate (103) is provided with a second limit card (108).

2. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: The stopper assembly (23) includes a circular tube portion (232), a right stopper portion (231) and a left stopper portion (233) are provided on two sides of the circular tube portion (232), a first bolt (234) is provided at the front of the circular tube portion (232), and the stopper assembly (23) is fastened to the second main shaft (21) via the first bolt (234).

3. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: The key plate (107) is provided with a key hole (1071).

4. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: A weighted portion (25) is provided at the lower end of the base portion (24).

5. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: The middle of the padlock spring (94) passes through the padlock plate (92), one end of the padlock spring (94) is in contact with the hole-blocking plate (93), and the other end passes through the hole on the padlock plate (92) and is fixed thereto.

6. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: When the hole of the padlock piece (92) overlaps with the hole of the padlock strip (10) on the electrical cabinet door, the padlock (91) passes through the hole to lock.

7. The electrical cabinet door unlocking mechanism according to claim 1, characterized in that: The connecting rod limiting portion (16) comprises a second bolt (161), a first nut (162) and a second nut (163). The first nut (162) and the second nut (163) are fixed to both end surfaces of the rear plate, and the connecting rod seat (102) is placed at the tail end of the second bolt (161).

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