CN209056769U - A 10-35kV switch cabinet shutter fixed adjustment device - Google Patents

Abstract

The utility model provides a 10-35kV switch cabinet shutter fixing and adjusting device, comprising an operating rod, a gear box, a first rack and a second rack; the operating rod is arranged perpendicular to the gear box and is connected with the gear box. The first rack and the second rack are arranged in parallel, and part of the teeth of the first rack and the second rack are worn in the gear box and mesh with the gear mechanism in the gear box, By rotating the operating lever, the first rack and the second rack are displaced in the vertical direction. The utility model is used to solve the problem that the contact protection plate of the existing switch cabinet cannot be locked and adjusted during maintenance, which easily leads to electric shocks for maintenance personnel.

Description

A 10-35kV switch cabinet shutter fixed adjustment device

technical field

The utility model relates to the technical field of electrical tools, in particular to a 10-35kV switch cabinet shutter fixing and adjusting device.

Background technique

The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc., and some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. load shedding. Its main function is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet are mainly composed of circuit breakers, isolating switches, load switches, operating mechanisms, transformers and various protection devices. There are many classification methods for switchgear. For example, the circuit breaker installation method can be divided into removable switchgear and fixed switchgear; or according to different cabinet structures, it can be divided into open switchgear, metal-enclosed switchgear, and metal switchgear. Closed armored switchgear; according to different voltage levels, it can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear. Mainly used in power plants, substations, petrochemicals, metallurgical steel rolling, light industry and textiles, factories and mines, residential quarters, high-rise buildings and other different occasions.

During the maintenance of the switch cabinet, after the switch exits the sliding track, the contact protection plate will be released through the connecting rod, so that the contact protection plate will automatically close up and down after the switch exits. However, due to the contact protection plate and the lack of a corresponding locking device, as long as a heavy object overwhelms the link on the switch rail, the contact protection plate will open and be ready for the switch to be inserted. In this way, it is possible for maintenance personnel to open the contact protection plate when the busbar is live, and the risk of electric shock occurs.

Utility model content

Aiming at the defects of the prior art, the utility model provides a 10-35kV switchgear shutter fixing adjustment device, which is used to solve the problem that the contact protection plate of the existing switchgear cannot be locked and adjusted during maintenance, which easily leads to electric shocks for maintenance personnel. question.

The utility model provides a 10-35kV switch cabinet shutter fixing and adjusting device, which comprises an operating rod, a gear box, a first rack and a second rack;

The operating rod is arranged perpendicular to the gear box and is connected with the gear mechanism in the gear box;

The first rack and the second rack are arranged in parallel, and part of the teeth of the first rack and the second rack are worn in the gear box and meshed with the gear mechanism in the gear box. By rotating the operating lever, The first rack and the second rack are displaced vertically.

In the above technical solutions, the utility model can also be improved as follows.

In a preferred technical solution, the additional technical feature is that: the gear box includes a box body and a driving wheel, the driving wheel is arranged in the box body and is connected with the operating rod, and the first rack and the second rack are opposite to each other. It is symmetrically arranged on the driving wheel and meshes with the driving wheel.

In a preferred technical solution, the additional technical feature is that the end face of the driving wheel is fixedly connected to one end of the connecting rod, and the other end of the connecting rod protrudes out of the box and is clamped with the operating rod.

In the preferred technical solution, the additional technical feature is that: the box body is provided with an opening, two symmetrical limit steps are arranged at the opening, and a cover plate is covered on the opening, and the cover plate and the limit step are arranged between the cover plate and the limit step. They are fixedly connected by several threaded parts, the two limit steps are parallel to the first rack or the second rack, and the minimum length of the single limit step and the tooth root of the driving wheel is greater than or equal to the limit step. The length of the tooth root of the first rack or the second rack.

In a preferred technical solution, the additional technical feature is that: one end of the operating rod close to the gear box is fixedly connected with a sleeve adapted to the connecting rod, the connecting rod is inserted into the sleeve, and the connecting rod is inserted into the sleeve. The outer side wall of the sleeve is provided with a strip-shaped clamping hole, one end of the strip-shaped clamping hole is provided with a locking hole, the other end of the strip-shaped clamping hole is provided with an opening, and the connecting rod and the strip-shaped clamping hole are connected. They are detachably clamped through a pin shaft piece, and a return spring is arranged between the connecting rod and the sleeve.

In a preferred technical solution, the additional technical feature is that the gear box further comprises a first driven wheel and a second driven wheel, and the first driven wheel, the driving wheel and the second driven wheel are along the first rack or the second driven wheel. The longitudinal directions of the second racks are arranged side by side, the first driven wheel and the second driven wheel are on the same plane, and the driving wheel moves to the same plane as the first driven wheel and the second driven wheel through the operating lever, the first driven wheel , the driving wheel and the second driven wheel are meshed in sequence.

In a preferred technical solution, the additional technical feature is that the modules and the number of teeth of the first driven wheel, the driving wheel and the second driven wheel are all the same.

In a preferred technical solution, the additional technical feature is that the length of the box body along the axial direction of the driving wheel is greater than or equal to twice the length of the end face of the driving wheel.

In a preferred technical solution, the additional technical feature is that: the ends of the first rack and the second rack are respectively provided with a first hook portion and a second hook portion, and the first hook portion and the second hook portion are opposite to each other. The operating rods are arranged symmetrically in the center.

In a preferred technical solution, an additional technical feature is that the first hook portion and the second hook portion are respectively inserted into the ends of the first rack and the second rack through pin shafts.

The beneficial effects of the utility model are as follows: the utility model is provided with an operating rod, a gear box, a first rack and a second rack, and when in use, the operating rod is an insulating operating rod, so even in the case of a live bus In addition, the gears in the gear box of the present utility model are made of nylon gears, and the overall weight is light, which is convenient for maintenance personnel to operate. In addition, the first rack and the second gear of the present utility model are The strip is also made of insulating material, and the overall insulation is good, which avoids the risk of electric shock for maintenance personnel.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings required for the description of the specific embodiments or the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

FIG. 1 is a schematic structural diagram of a 10-35kV switch cabinet shutter fixing and adjusting device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a gear box according to an embodiment of the present invention.

3 is a right side view of a 10-35kV switchgear shutter fixing and adjusting device according to an embodiment of the present invention.

4 is a schematic structural diagram of a box body according to an embodiment of the present invention.

FIG. 5 is a side view of the box body according to the embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a first rack according to an embodiment of the present invention.

FIG. 7 is a bottom view of the first rack of the embodiment of the present invention. In the figure, the meanings of each mark are as follows:

1. Operating lever; 12. Sleeve; 2. Gear box; 21. Box body; 22. Driving wheel; 23. Connecting rod; 24. Cover plate; 25. First driven wheel; 26. Second driven wheel; 3 31, the first hook part; 4, the second rack; 41, the second hook part; 5, the upper protection plate of the contact; 6, the lower protection plate of the contact.

Detailed ways

In order to further understand the utility model content, characteristics and effects of the present utility model, the following examples are given as examples, and are described in detail as follows:

As shown in FIG. 1 to FIG. 7 , this embodiment provides a 10-35kV switchgear shutter fixing and adjusting device, including an operating rod 1 , a gear box 2 , a first rack 3 and a second rack 4 ;

The operating rod 1 is arranged perpendicular to the gear box 2 and is connected with the gear mechanism in the gear box 2;

The first rack 3 and the second rack 4 are arranged in parallel, and part of the teeth of the first rack 3 and the second rack 4 are worn in the gear box 2 and meshed with the gear mechanism in the gear box 2 , by rotating the operating rod 1, the first rack 3 and the second rack 4 are displaced in the vertical direction.

In this embodiment, the operating lever 1 , the gear box 2 , the first rack 3 and the second rack 4 are provided, where the operating lever 1 , the gear box 2 , the gear in the gear box 2 , the first rack 3 and the second gear The bars 4 are all made of insulating materials. When the maintenance personnel use the first rack 3 and the second rack 4, they buckle the upper contact protection plate 5 and the lower protection plate 6 of the contact, and then turn to the operating lever 1, Drive the gear mechanism in the gear box 2 to rotate, drive the first rack 3 and the second rack 4 to dislocate in the vertical direction, and finally drive the contact upper protection plate 5 and the contact lower protection plate 6 to move away from or approach each other, When the maintenance personnel stop rotating the operating lever 1 and hold the operating lever 1 tightly, the first rack 3 and the second rack 4 can be prevented from driving the gear mechanism in the gear box 2 to rotate due to gravity, so as to realize the protection against the upper protection plate 5 and the contactor. The locking of the protection plate 6 under the contact.

As shown in FIG. 1 and in conjunction with FIG. 2 and FIG. 3 , the gear box 2 includes a box body 21 and a driving wheel 22 . The driving wheel 22 is arranged in the box body 21 and is connected with the operating rod 1 . The first tooth The rack 3 and the second rack 4 are symmetrically arranged with respect to the driving wheel 22 and mesh with the driving wheel 22 .

By arranging the box body 21 and the driving wheel 22, the maintenance personnel can drive the driving wheel 22 to rotate when rotating the operating lever 1. Since the first rack 3 and the second rack 4 are located at both ends of the driving wheel 22, the driving wheel 22 During the rotation process, the first rack 3 and the second rack 4 can be driven to dislocate and move in the vertical direction.

As shown in FIG. 1 and FIG. 2 , the end surface of the driving wheel 22 is fixedly connected to one end of the connecting rod 23 , and the other end of the connecting rod 23 protrudes out of the box body 21 and is clamped with the operating rod 1 .

The provided connecting rod 23 can be inserted into the driving wheel 22 , or can be integrally formed with the driving wheel 22 .

As shown in FIG. 4 and in conjunction with FIG. 5 , the box body 21 is provided with an opening, two symmetrical limit steps are arranged at the opening, and a cover plate 24 is covered on the opening. They are fixedly connected by several threaded parts, the two limit steps are parallel to the first rack 3 or the second rack 4, and the minimum length of a single limit step and the tooth root of the driving wheel 22 is greater than or equal to the limit The length of the tooth root of the first rack 3 or the second rack 4 corresponding to the step.

Part of the tooth body of the first rack 3 or the second rack 4 can be arranged between the limit step and the driving wheel 22, which can limit the position of the first rack 3 or the second rack 4, and at the same time The compactness of the internal structure in the gear box 2 is guaranteed.

As shown in FIG. 1 and in conjunction with FIG. 2 , one end of the operating rod 1 close to the gear box 2 is fixedly connected with a sleeve 12 adapted to the connecting rod 23 , and the connecting rod 23 is inserted into the sleeve 12 , the outer side wall of the sleeve 12 is provided with a strip-shaped clamping hole, one end of the strip-shaped clamping hole is provided with a locking hole, and the other end of the strip-shaped clamping hole is provided with an opening. The strip-shaped clamping holes are detachably clamped through a pin shaft, and a return spring 27 is provided between the connecting rod 23 and the sleeve 12 .

The provided sleeve 12 is used to cooperate with the connecting rod 23. Here, the material of the connecting rod 23 is an insulating material. The maintenance personnel pull the sleeve 12 toward the end away from the gear box 2 and rotate the sleeve 12, and then slide the pin shaft into the into the locking hole of the bar-shaped card hole, so as to pull the driving wheel 22 out of the engagement with the first rack 3 and the second rack 4 to realize the locking of the first rack 3 and the second rack 4, When it is necessary to restore the movement of the first rack 3 and the second rack 4, it is necessary to press the sleeve 12 toward the end close to the gear box 2 and rotate the sleeve 12 to make the pin shaft slide from the locking hole of the strip-shaped card hole. The sleeve 12 can drive the driving wheel 22 to rotate when the sleeve 12 rotates.

As shown in FIG. 1 in conjunction with FIG. 2 and FIG. 3 , the gear box 2 further includes a first driven wheel 25 and a second driven wheel 26 , the first driven wheel 25 , the driving wheel 22 and the second driven wheel 26 along the The first rack 3 or the second rack 4 are arranged side by side in the longitudinal direction, the first driven wheel 25 and the second driven wheel 26 are located on the same plane, and the driving wheel 22 is moved by the operating lever 1 to the same plane as the first driven wheel 25 and the second driven wheel 26. When the second driven wheel 26 is located on the same plane, the first driven wheel 25 , the driving wheel 22 and the second driven wheel 26 mesh in sequence.

The provision of the first driven wheel 25 and the second driven wheel 26 can increase the guiding stability of the first rack 3 and the second rack 4, and prevent the first rack 3 and the second rack 4 from shifting during dislocation movement .

In this embodiment, the modules and the number of teeth of the first driven wheel 25 , the driving wheel 22 and the second driven wheel 26 are all the same.

In this way, the meshing stability of the first driven wheel 25, the driving wheel 22 and the second driven wheel 26 is guaranteed, so that the first driven wheel 25, the driving wheel 22 and the second driven wheel 26 can drive the first rack 3 and the second driven wheel 26 when meshing. The second rack 4 moves.

In addition, in this embodiment, the length of the box body 21 along the axial direction of the driving wheel 22 is greater than or equal to twice the length of the end face of the driving wheel.

In this way, the maintenance personnel can at least double the length of the end face of the driving wheel 22 by pulling out the operation, so that the driving wheel 22 can be separated from the first driven wheel 25 and the second driven wheel 26, and the first rack 3 and the second driven wheel 26 can be separated. Locking of rack 4.

6 in conjunction with FIG. 7 , the ends of the first rack 3 and the second rack 4 are respectively provided with a first hook portion 31 and a second hook portion 41 , the first hook portion 31 and the second hook The portion 41 is centrally symmetrical with respect to the operating lever 1 .

The provided first hook portion 31 and the second hook portion 41 are used for pulling the upper contact protection plate 5 and the lower contact protection plate 6 respectively.

As shown in FIG. 6 in conjunction with FIG. 7 , the first hook portion 31 and the second hook portion 41 are respectively inserted into the ends of the first rack 3 and the second rack 4 through pin shafts.

This arrangement is used to facilitate maintenance personnel to select a suitable size of the hook portion, and to replace the hook portion, so as to adapt to the contact protection plates of different sizes.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device. Or the elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. a kind of 10-35kV switch cabinet shutter secured adjusted device, it is characterised in that: including operating stick (1), gearcase (2), One rack gear (3) and the second rack gear (4)；

The operating stick (1) is arranged perpendicular to the gearcase (2) and connect with the gear mechanism in gearcase (2)；

First rack gear (3) and the second rack gear (4) are arranged in parallel, and the part tooth of the first rack gear (3) and the second rack gear (4) It wears and is set in gearcase (2) and is meshed with the gear mechanism in gearcase (2), by rotating operating stick (1), make the first tooth Item (3) and the second rack gear (4) dislocation motion in the vertical direction.

2. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 1, it is characterised in that: the tooth Wheel box (2) includes box body (21) and driving wheel (22), driving wheel (22) setting it is interior in box body (21) and with the operating stick (1) connect, first rack gear (3) and the second rack gear (4) it is arranged symmetrically relative to driving wheel (22) and with driving wheel (22) phase Engagement.

3. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 2, it is characterised in that: the master The end face of driving wheel (22) is fixedly connected with connecting rod one end, the other end of the connecting rod reach box body (21) outside and with it is described Operating stick (1) clamping.

4. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 3, it is characterised in that: the box Body (21) is equipped with opening, which sets there are two symmetrical limited step, is covered with cover board (24), the cover board in opening (24) it is fixedly connected between limited step by several screw elements, two limited steps and first rack gear (3) or the In parallel, and the minimum length of single limited step and the tooth root of driving wheel (22) is more than or equal to the limited step to two rack gears (4) The tooth root length of corresponding first rack gear (3) or the second rack gear (4).

5. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 4, it is characterised in that: the behaviour Make bar (1) and be fixedly connected with sleeve (12) compatible with the connecting rod close to the one end of gearcase (2), the connecting rod is inserted In the sleeve (12), bar shaped card hole, the one end of the bar shaped card hole are equipped on the lateral wall of the sleeve (12) Equipped with lockhole, the other end of bar shaped card hole is equipped with opening, detachable by pin shaft part between connecting rod and the bar shaped card hole Clamping, and between connecting rod and sleeve (12) be equipped with reset spring (27).

6. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 5, it is characterised in that: the tooth Wheel box (2) further includes the first driven wheel (25) and the second driven wheel (26), first driven wheel (25), driving wheel (22) and the Two driven wheels (26) are set side by side along the length of first rack gear (3) or the second rack gear (4) to direction, the first driven wheel (25) it is generally aligned in the same plane with the second driven wheel (26), driving wheel (22) is moved to and the first driven wheel by operating stick (1) (25) when and the second driven wheel (26) is generally aligned in the same plane, the first driven wheel (25), driving wheel (22) and the second driven wheel (26) Successively engage.

7. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 6, it is characterised in that: described One driven wheel (25), the modulus of driving wheel (22) and the second driven wheel (26) and the number of teeth are all the same.

8. a kind of 10-35kV switch cabinet shutter secured adjusted device, feature according to claim 2-7 any one exist It is more than or equal to the length of twice of driving wheel (22) end face along the length of driving wheel (22) axis direction in: the box body (21).

9. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 8, it is characterised in that: described The end of one rack gear (3) and the second rack gear (4) is respectively equipped with the first hook portion (31) and the second hook portion (41), and described first hangs Hook portion (31) and the second hook portion (41) are centrosymmetric setting relative to the operating stick (1).

10. a kind of 10-35kV switch cabinet shutter secured adjusted device according to claim 9, it is characterised in that: described One hook portion (31) and the second hook portion (41) are inserted into the end of the first rack gear (3) and the second rack gear (4) by pin shaft part respectively Portion.