CN213988707U

CN213988707U - Electric grounding switch

Info

Publication number: CN213988707U
Application number: CN202023134124.9U
Authority: CN
Inventors: 章道财
Original assignee: Wenzhou Beiying Electric Appliance Co ltd
Current assignee: Wenzhou Beiying Electric Appliance Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-17
Anticipated expiration: 2030-12-23

Abstract

The utility model belongs to the technical field of power equipment, refer in particular to an electronic earthing switch, including the support that is connected with the static contact, and the base that is run through by the transmission shaft, be connected with on the transmission shaft can with the moving contact of static contact, be equipped with on the base and promote transmission shaft pivoted spring, the spring makes the moving contact have the trend that is close to the static contact, be connected with on the transmission shaft and drive its pivoted drive gear, be connected with control drive gear pivoted motor on the support, be equipped with the motor gear with drive gear engaged with in the motor, be connected with the installation component who is used for fixed motor on the support, the installation component makes on the motor is fixed in the support, the installation component has played the effect of consolidating its transmission structure to the fixed of motor, earthing switch's life has been prolonged effectively.

Description

Electric grounding switch

Technical Field

The utility model belongs to the technical field of power equipment, a electronic earthing switch is related to.

Background

The earthing switch is a mechanical earthing device which can release the static electricity of the maintained equipment and the return circuit, thereby ensuring the personal safety of the working personnel during the power failure maintenance. An electric grounding switch exists in the existing grounding switch, and the grounding switch can realize rapid switching-off and switching-on control through a motor. All be equipped with energy storage spring in the current earthing switch, when closing a floodgate, energy storage spring can play the effect of supplementary quick combined floodgate through kick-backing. However, the energy storage spring often can release great energy when kick-backing, if there is not enough stable structure in the electronic earthing switch to bear the elasticity that the energy storage spring produced when kick-backing, the deformation of inner structure or even damage becomes probably to appear after long-term the use of electronic earthing switch, and then causes the motor to be unable to control it and normally carries out the separating brake and close a floodgate. When the earthing switch can not work normally, the worker is possibly in danger in the process of overhauling the power equipment.

CN201320820999.5 discloses an electric grounding switch, which includes a grounding switch and a large shaft, wherein the large shaft is connected with an electric mechanism, the electric mechanism includes a frame, and a deceleration dc motor is arranged on the frame; a primary gear is arranged on an output shaft of the speed reduction direct current motor; a rotating shaft is arranged in the frame, and the primary gear is meshed with a secondary gear arranged on the rotating shaft; and a third-stage gear is arranged on the rotating shaft and meshed with a transmission gear arranged on the large shaft.

In the grounding switch, the grounding switch realizes switching-off and switching-on through the rotation of the large shaft, the large shaft and the motor are connected with gears which are meshed with each other, and the electric mechanism controls the large shaft by driving the gears to rotate. However, in the process of repeatedly opening and closing the grounding switch, the grounding switch is constantly subjected to the elastic force generated by the resilience of the energy storage spring, and under the condition of long-term stress, the internal structure of the grounding switch may change. In this case, the electric mechanism may be displaced by the force applied to the earthing switch. When the position of the electric mechanism deviates, the meshing between all levels of gears used for transmission in the grounding switch is difficult to keep tight, and under the condition of infirm meshing, the gears at all levels are likely to wear and extend to collapse during mutual transmission, so that transmission failure is finally caused, and the grounding switch cannot realize normal switching-off and switching-on. Therefore, the above grounding switch has a significant drawback in terms of stability.

Aiming at the problems, the electric grounding switch which can keep the stable transmission structure and prolong the service life can be designed.

Disclosure of Invention

The utility model discloses according to above-mentioned problem, a electronic earthing switch is provided, this earthing switch is through consolidating the motor to strengthened the stability of its transmission structure, prolonged earthing switch's life effectively.

The purpose of the utility model is realized like this:

a grounding switch comprises a support connected with a fixed contact and a base penetrated by a transmission shaft, wherein a movable contact capable of being in contact with the fixed contact is connected to the transmission shaft, a spring capable of pushing the transmission shaft to rotate is arranged on the base, the movable contact tends to approach the fixed contact due to the spring, a transmission gear capable of driving the transmission shaft to rotate is connected to the transmission shaft, a motor for controlling the transmission gear to rotate is connected to the support, a motor gear meshed with the transmission gear is arranged in the motor, a mounting assembly used for fixing the motor is connected to the support, and the motor is fixed to the support due to the mounting assembly.

Further, the installation component comprises a first installation plate and a second installation plate which are connected to two sides of the motor, and the first installation plate and the second installation plate are fixed on the support.

Furthermore, a first connecting through hole and a second connecting through hole which are aligned are formed on the first mounting plate and the motor respectively.

Further, be formed with the orientation on the motor the first lug of first mounting panel, be equipped with the third mounting panel between first mounting panel and the motor, be formed with the confession on the third mounting panel the first spacing groove of first lug embedding, and with the third connecting hole that first connecting hole, second connecting hole align.

Furthermore, be formed with on the motor towards the second lug of second mounting panel, can be formed with on the second mounting panel and supply the second spacing groove of second lug embedding.

Further, a power part is arranged on one side of the motor, and a third limiting groove for embedding the power part can be formed in the second mounting plate.

Further, the support includes the backup pad, and the backup pad both ends are buckled and are extended to form first bent plate and second bent plate respectively, it has the mounting groove to inject between backup pad, first bent plate and the second bent plate, first mounting panel, second mounting panel and motor are all located in the mounting groove.

Furthermore, a first jack is formed in the supporting plate, a first slot is formed in the first bent plate, a second slot is formed in the second bent plate, a first inserting block inserted into the first jack is formed in the first mounting plate, a second inserting block abutted to the first slot is formed in the first mounting plate, and a third inserting block extending into the second slot is formed in the first mounting plate.

Furthermore, the second mounting panel support in between first bent plate and the second bent plate, the second mounting panel orientation the one end of second bent plate is buckled and is extended to be formed with and hug closely the connection bent plate of first bent plate, be formed with the fourth connecting through hole and the fifth connecting through hole that align respectively on first bent plate and the connection bent plate.

Furthermore, the base is including locating both sides, and with the curb plate that the backup pad offseted, be formed with third slot and the fourth slot that can insert each other on first bent plate and the curb plate, the curb plate is buckled and is extended to be formed with the bottom plate that first bent plate offseted, be formed with the second jack on the bottom plate, be formed with on the first bent plate and insert the fourth inserted block of second jack.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the grounding switch fixes the motor in all directions through the mounting assembly, so that the motor cannot deviate in the working process of the grounding switch, and the transmission structure of the motor for controlling the grounding switch can be kept stable.

2. All be formed with the connection structure of mutually supporting between support, motor and the installation component for the installation component is easily fixed the motor on the support.

3. A connecting structure which is matched with each other is formed between the support and the base, so that the connection between the support and the base is reinforced, and the structural ground stability of the grounding switch is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first perspective view of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a third perspective view of the present invention.

Fig. 4 is a fourth perspective view of the present invention.

Fig. 5 is a fifth perspective view of the present invention.

Fig. 6 is a first perspective view of the motor.

Fig. 7 is a perspective view of the first mounting plate.

Fig. 8 is a perspective view of the third mounting plate.

Fig. 9 is a second perspective view of the motor.

Fig. 10 is a first perspective view of the second mounting plate.

Fig. 11 is a second perspective view of the second mounting plate.

Fig. 12 is a perspective view of the stent.

Fig. 13 is a perspective view of the side plate.

1-bracket, 11-fixed contact, 12-support plate, 121-first jack, 13-first bent plate, 131-first slot, 132-fourth connecting through hole, 133-third slot, 134-fourth plug block, 14-second bent plate, 141-second slot, 15-mounting slot, 2-transmission shaft, 21-movable contact, 22-transmission gear, 3-base, 31-side plate, 311-fourth slot, 312-bottom plate, 313-second jack, 4-spring, 5-motor, 51-motor gear, 52-second connecting through hole, 53-first bump, 54-second bump, 55-power part, 6-first mounting plate, 61-first connecting through hole, 62-first plug block, 63-a second inserting block, 64-a third inserting block, 7-a second mounting plate, 71-a second limiting groove, 72-a third limiting groove, 73-a connecting bent plate, 731-a fifth connecting through hole, 8-a third mounting plate, 81-a first limiting groove, 82-a third connecting through hole and 9-a cover plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The invention will be further described in the following with reference to specific embodiments thereof,

as shown in fig. 1-6, an electric ground switch includes a bracket 1 connected with a fixed contact 11, and a base 3 penetrated by a transmission shaft 2, wherein a movable contact 21 capable of contacting with the fixed contact 11 is connected to the transmission shaft 2, a spring 4 capable of pushing the transmission shaft 2 to rotate is disposed on the base 3, the movable contact 21 tends to approach the fixed contact 11 due to the spring 4, a transmission gear 22 for driving the transmission shaft 2 to rotate is connected to the transmission shaft 2, a motor 5 for controlling the transmission gear 22 to rotate is connected to the bracket 1, a motor gear 51 engaged with the transmission gear 22 is disposed in the motor 5, an installation component 10 for fixing the motor 5 is connected to the bracket 1, and the transmission gear 22 and the motor gear 51 are tightly engaged with each other due to the installation component 10. Specifically, in the earthing switch, the motor 5 controls the motor gear 51 to rotate, so that the transmission gear 22 meshed with the motor gear 51 can drive the transmission shaft 2 to rotate, and the transmission shaft 2 penetrates through the transmission gear 22 and forms linkage fit with the bump through mutual gaps. The movable contact 21 is connected with the transmission shaft 2 through a crank arm, so that the transmission shaft 2 can drive the movable contact 21 to rotate, when the movable contact 21 is in contact with the fixed contact 11, the grounding switch is switched on, and when the movable contact 21 is far away from the fixed contact 11, the grounding switch is switched off. In the working process of the grounding switch, the mounting assembly 10 fixes the motor 5 on the bracket 1, so that the position of the motor 5 is prevented from shifting or shaking, and the transmission gear 22 and the motor 51 are always kept in a tightly meshed state.

As shown in fig. 2-5, the mounting assembly 10 includes a first mounting plate 6 and a second mounting plate 7 attached to either side of the motor 5. Specifically, the first mounting plate 6 and the second mounting plate 7 are fixed on the bracket 1, and the motor 5 is fixed by being connected to two sides of the motor 5.

As shown in fig. 6 to 7, the first mounting plate 6 and the motor 5 are formed with a first connecting through hole 61 and a second connecting through hole 52, respectively, which are aligned. Specifically, the screws sequentially penetrate through the first connecting through holes 61 and the second connecting through holes 52, so that the first mounting plate 6 and the motor 5 are fixedly connected, the motor 5 is fixed, and the motor 5 is prevented from being deviated in the left-right direction.

As shown in fig. 3 to 8, a first protrusion 53 facing the first mounting plate 6 is formed on the motor 5, a third mounting plate 8 is disposed between the first mounting plate 6 and the motor 5, and a first limiting groove 81 for the first protrusion 53 to be inserted into and a third connecting through hole 82 aligned with the first connecting through hole 61 and the second connecting through hole 52 are formed on the third mounting plate 8. Specifically, through inciting somebody to action first lug 53 on the motor 5 imbeds the first spacing groove 81 of third mounting panel 8, third mounting panel 8 can be further right motor 5 is fixed, prevents motor 5 from taking place the skew in the front and back orientation, third mounting panel 8 quilt one side of motor 5 with first mounting panel 6 presss from both sides in the centre, and the screw passes in proper order first connecting through-hole 61, third connecting through-hole 82 and second connecting through-hole 52, thereby it is right to accomplish first mounting panel 6, third mounting panel 8 and motor 5's fixed connection.

As shown in fig. 8 to 9, a second protrusion 54 facing the second mounting plate 7 is formed on the motor 5, and a second limiting groove 71 into which the second protrusion 54 is inserted may be formed on the second mounting plate 7. Specifically, the second protrusion 54 on the motor 5 is inserted into the second limiting groove 71, so that the motor 5 can be further prevented from shifting in the front-rear direction, and the fixing effect on the motor 5 is achieved.

As shown in fig. 8 and 10, a power unit 55 is disposed at one side of the motor 5, and a third limiting groove 72 into which the power unit 55 is inserted may be formed on the second mounting plate 7. Specifically, in addition to the fixation of the motor 5 by the cooperation with the second protrusion 54 on the motor 5, the second mounting plate 7 may also fix the motor 5 by the power portion 55 being inserted into the third limiting groove 72.

As shown in fig. 2, 3 and 12, the bracket 1 includes a support plate 12, two ends of the support plate 12 extend in a bent manner and form a first bent plate 13 and a second bent plate 14, respectively, and an installation groove 15 is defined between the support plate 12, the first bent plate 13 and the second bent plate 14. Specifically, the mounting groove 15 is used for accommodating the motor 5, the first mounting plate 6 and the second mounting plate 7, so that the motor 5 is convenient to mount and fix, and after the motor 5 is mounted, the mounting groove 15 can be covered by the cover plate 9, so that the motor 5 is shielded and protected, and the first mounting plate 6 and the second mounting plate 7 are supported.

As shown in fig. 7 and 12, the support plate 12 is formed with a first insertion hole 121, the first bent plate 13 is formed with a first insertion groove 131, the second bent plate 14 is formed with a second insertion groove 141, and the first mounting plate 6 is formed with a first insertion block 62, a second insertion block 63, and a third insertion block 64. Specifically, the first insertion block 62 is inserted into the first insertion block 121, the second insertion block 63 abuts against the first insertion groove 131, the third insertion block 64 is embedded into the second insertion groove 141, and the first mounting plate 6 can be fixed on the bracket 1.

As shown in fig. 10 to 12, the second mounting plate 7 abuts against between the first bending plate 13 and the second bending plate 14, the second mounting plate 7 extends toward one end of the second bending plate 14, and is formed with a connecting bending plate 73 closely attached to the first bending plate 13, and the first bending plate 13 and the connecting bending plate 73 are respectively formed with a fourth connecting through hole 132 and a fifth connecting through hole 731 which are aligned. Specifically, the first bending plate 13 and the second bending plate 14 clamp the second mounting plate 7 in the mounting groove 15, the connecting bending plate 73 is tightly attached to the first bending plate 13, and a screw passes through the fourth connecting through hole 132 and the fifth connecting through hole 731, so that the second mounting plate 7 and the bracket 1 are further fixed. First mounting panel 6 is in with second mounting panel 7 all obtain fixed while connecting on the support 1 motor 5 can realize will motor 5 is fixed in on the support 1.

As shown in fig. 3, 12 and 13, the base 3 includes side plates 31 disposed at both sides and abutting against the support plate 12, the first bent plate 13 and the side plates 31 are formed with third slots 133 and fourth slots 311 that are inserted into each other, the side plates 31 are bent and extended and formed with bottom plates 312 that abut against the first bent plate 13, the bottom plates 312 are formed with second insertion holes 313, and the first bent plate 13 is formed with fourth insertion blocks 134 that are inserted into the second insertion holes 313. Specifically, through the cooperation of the third slot 133 and the fourth slot 311, the first bending plate 13 is cross-connected with the side plate 31, and the rear end of the side plate 31 extends into the mounting slot 15 to abut against the support plate 12, so as to support the bracket 1, and the fourth insertion block 134 on the first bending plate 13 is inserted into the second insertion hole 313 on the bottom plate 312, so as to reinforce the connection between the bracket 1 and the side plate 31, so that the structure of the earthing switch is more stable.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An electric grounding switch comprises a support (1) connected with a static contact (11) and a base (3) penetrated by a transmission shaft (2), wherein a moving contact (21) capable of contacting with the static contact (11) is connected on the transmission shaft (2), a spring (4) capable of pushing the transmission shaft (2) to rotate is arranged on the base (3), the moving contact (21) tends to approach the static contact (11) due to the spring (4), the electric grounding switch is characterized in that the transmission shaft (2) is connected with a transmission gear (22) capable of driving the transmission shaft to rotate, the support (1) is connected with a motor (5) capable of controlling the transmission gear (22) to rotate, a motor gear (51) meshed with the transmission gear (22) is arranged in the motor (5), and the support (1) is connected with a mounting component (10) for fixing the motor (5), the assembly (10) is mounted such that a tight engagement is maintained between the drive gear (22) and the motor gear (51).

2. The electric earthing switch of claim 1, characterized in that said mounting assembly (10) comprises a first mounting plate (6) and a second mounting plate (7) connected to both sides of said electric motor (5), said first mounting plate (6) and second mounting plate (7) being fixed to said bracket (1).

3. The electric earthing switch according to claim 2, characterized in that said first mounting plate (6) and said electric motor (5) are formed with a first connecting through hole (61) and a second connecting through hole (52) aligned, respectively.

4. The electric earthing switch according to claim 3, characterized in that the motor (5) is formed with a first projection (53) facing the first mounting plate (6), a third mounting plate (8) is provided between the first mounting plate (6) and the motor (5), the third mounting plate (8) is formed with a first limiting groove (81) for the first projection (53) to be inserted into, and a third connecting through hole (82) aligned with the first connecting through hole (61) and the second connecting through hole (52).

5. The electric earthing switch according to claim 2, characterized in that said motor (5) is formed with a second projection (54) facing said second mounting plate (7), and said second mounting plate (7) is formed with a second retaining groove (71) into which said second projection (54) is fitted.

6. The electric grounding switch of claim 2, wherein a power portion (55) is disposed on one side of the motor (5), and a third limiting groove (72) for the power portion (55) to be inserted into is formed on the second mounting plate (7).

7. The electric grounding switch according to claim 2, wherein the bracket (1) comprises a support plate (12), two ends of the support plate (12) are bent and extended to form a first bent plate (13) and a second bent plate (14), a mounting groove (15) is defined between the support plate (12), the first bent plate (13) and the second bent plate (14), and the first mounting plate (6), the second mounting plate (7) and the motor (5) are all arranged in the mounting groove (15).

8. The electric grounding switch of claim 7, wherein the supporting plate (12) is formed with a first insertion hole (121), the first bending plate (13) is formed with a first insertion groove (131), the second bending plate (14) is formed with a second insertion groove (141), the first mounting plate (6) is formed with a first insertion block (62) inserted into the first insertion hole (121), a second insertion block (63) abutted against the first insertion groove (131), and a third insertion block (64) extended into the second insertion groove (141).

9. The electric grounding switch of claim 7, wherein the second mounting plate (7) abuts against between the first bending plate (13) and the second bending plate (14), the second mounting plate (7) extends toward one end of the second bending plate (14) in a bending manner, and is formed with a connecting bending plate (73) closely attached to the first bending plate (13), and the first bending plate (13) and the connecting bending plate (73) are respectively formed with a fourth connecting through hole (132) and a fifth connecting through hole (731) which are aligned.

10. The electric grounding switch according to claim 7, wherein the base (3) includes side plates (31) disposed at two sides and abutting against the support plate (12), the first bending plate (13) and the side plates (31) are formed with third slots (133) and fourth slots (311) that can be inserted into each other, the side plates (31) are bent and extended and formed with bottom plates (312) abutting against the first bending plate (13), the bottom plates (312) are formed with second insertion holes (313), and the first bending plate (13) is formed with fourth insertion blocks (134) that are inserted into the second insertion holes (313).