CN215761011U

CN215761011U - Quick-opening lock suitable for centrally installed switchgear

Info

Publication number: CN215761011U
Application number: CN202121195079.XU
Authority: CN
Inventors: 张超; 刘小玲
Original assignee: Nanjing Qianxin Electrical Device Co ltd
Current assignee: Nanjing Qianxin Electrical Device Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-02-08
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a quick-opening lock suitable for a centrally installed switchgear, which comprises an operating mechanism, a driving rod, a connecting rod, a spring, a lock bolt and a lock bolt, wherein the operating mechanism is movably connected with the driving rod, the driving rod is fixedly connected with the connecting rod, and the lock bolt is matched with the lock bolt. According to the utility model, the plurality of lock tongues are arranged on the long connecting rods arranged up and down, so that one-time unlocking of the centrally-mounted cabinet can be realized, and the unlocking time and the unlocking efficiency are greatly saved.

Description

Quick-opening lock suitable for centrally installed switchgear

Technical Field

The utility model relates to a quick-opening lock, in particular to a quick-opening lock suitable for a centrally installed switchgear.

Background

At present, 1kV systems of a large number of substations adopt central high-voltage switch cabinets, and at least 8 or more bolts are installed on cabinet doors of the central high-voltage switch cabinets. The operation and maintenance operators need to carry out the procedures of opening and locking the bolts of the switch cabinet once when operating the equipment in a cold standby state or an overhaul state, and the configured bolts are used for operating the key and the key are operated manually, so that the operation is very inconvenient, the great waste is brought to the power-on and power-off operation time of the equipment, and the operation is particularly outstanding to the power-on and power-off operation of the 1kV whole section of bus. In a transformer substation, a minimum of more than ten centrally installed switchgear and hundreds of bolts are generally needed, and more difficulties are brought to workers during operation and maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick-opening lock suitable for a centrally installed switchgear, which can improve the unlocking speed and efficiency, and has the advantages of simple structure and convenience in use.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a quick-opening lock suitable for a centrally installed switchgear comprises an operating mechanism, a driving rod, a connecting rod, a spring, a lock bolt and a lock bolt, wherein the operating mechanism is movably connected with the driving rod, the driving rod is fixedly connected with the connecting rod, and the lock bolt is matched with the lock bolt;

the connecting rods are connected through springs, and at least two lock tongues are fixed on one surface of each connecting rod, which is close to the lock bolt.

As a further improvement of the utility model, a first hole is arranged at the position close to the end part of the connecting rod, and the driving rod is connected with the connecting rod through the first hole.

As a further improvement of the utility model, the connecting rod comprises an upper connecting rod and a lower connecting rod, the bottom end of the upper connecting rod is fixed in the spring, and the top end of the lower connecting rod is fixed in the spring; the connecting rod is provided with a second hole and is connected with the bolt through the second hole.

As a further improvement of the utility model, the driving rod comprises an upper driving rod and a lower driving rod, the upper driving rod, the fixed arm and the handle are connected through a first pin, and the lower driving rod and the fixed arm are connected through a second pin; and a third pin is arranged on the handle and is positioned in a fifth hole formed by the mutual connection of the upper driving rod and the lower driving rod.

As a further improvement of the utility model, one end of each of the upper driving rod and the lower driving rod is a U-shaped notch, one side of the U-shaped notch of the upper driving rod and one side of the U-shaped notch of the lower driving rod are overlapped with each other, and the other side of the U-shaped notch of the upper driving rod and the other side of the U-shaped notch of the lower driving rod are contacted with each other; the third pin is positioned in a fifth hole formed by the two U-shaped notches.

As a further improvement of the utility model, the surface of the lock tongue, which is butted against the lock bolt, is an arc surface.

As a further improvement to the utility model, the lock bolt comprises a cone at the end and a cylinder arranged behind the cone, and the diameter of the cylinder is smaller than the diameter of the bottom surface of the cone.

As a further improvement of the utility model, the operating mechanism comprises a handle, a connecting arm, a fixing plate and a rotary lock, wherein the handle and the connecting arm are movably connected, the connecting arm is fixedly connected to the fixing plate, one end of the rotary lock is fixed on the connecting arm, and the other end of the rotary lock is fixed relative to the fixing plate.

As a further improvement of the utility model, the rotary lock comprises a fixed part and a limiting part which rotates relative to the fixed part, and the limiting part and the fixed plate are relatively fixed.

As a further improvement of the utility model, the device also comprises a guide piece and a guide piece upper cover, wherein the guide piece upper cover is arranged above the guide piece and is fixed by a bolt.

As a further improvement to the present invention, the guide member includes a "C" shaped fixing portion and a "one" shaped connecting portion, and ends of the fixing portion are connected by the connecting portion.

As a further improvement of the utility model, the fixing part of the guiding element is fixed on the cabinet door, and the connecting rod penetrates through the guiding element and the hole formed on the upper cover of the guiding element.

As a further improvement of the utility model, the handle is an integrally formed ABS handle.

Has the advantages that:

according to the utility model, the plurality of lock tongues are arranged on the long connecting rods arranged up and down, so that one-time unlocking of the centrally-mounted cabinet can be realized, and the unlocking time and the unlocking efficiency are greatly saved.

The quick unlocking mechanism is combined with the knob lock, so that the door opening speed can be improved, the safety of the centrally-mounted cabinet is effectively guaranteed, and the centrally-mounted cabinet is prevented from being opened by mistake.

The connecting rod guide part adopts a separated installation and fixing mode, and is convenient for connecting rod installation and linkage.

According to the utility model, the reset spring is arranged in the connecting rod, and the lock tongue and the lock bolt adopt arc guiding, so that the cabinet door can be self-locked when closed.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention at the inner side of a cabinet door.

Fig. 2 is a schematic structural view of the present invention at the outside of the cabinet door.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a schematic view of the connection of the link and the spring.

Fig. 6 is a schematic view of the connection of the link, the drive lever and the spring.

Fig. 7 is a schematic view of the construction of the deadbolt and bolt.

Fig. 8 is a left side view of fig. 7.

Fig. 9 is a schematic structural view of the guide and the guide upper cover.

Fig. 10 is a top view of fig. 9.

The figures represent the following meanings: 1. an upper connecting rod; 2. a lower connecting rod; 3. a spring; 4. a guide member; 5. a guide upper cover; 6. a latch bolt; 7. a lock bolt; 8. rotating the lock; 9. a handle; 10. an upper drive rod; 11. a lower drive rod; 12. a fixing plate; 13. a connecting arm; 14. a first hole; 15. a second hole; 16. a third aperture; 17. a fifth aperture; 18. a fourth aperture; 19. a first pin; 20. a third pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises," "comprising," or the like, mean that the elements or items listed before "comprises" or "comprising" encompass the features, integers, steps, operations, elements, and/or components listed after "comprising" or "comprising," and do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.

A quick-opening lock suitable for a centrally installed switchgear comprises an operating mechanism, a driving rod, a connecting rod, a spring 3, a bolt 6, a bolt 7, a guide upper cover 5 and a guide 4. The lock bolt 7 is fixed on the cabinet body. The lock tongue 6 and the connecting rod mechanism are arranged on the inner side (close to one side of the lock bolt) of the cabinet door, and the operating mechanism is arranged on the outer side of the cabinet door.

The operating mechanism comprises a rotary lock 8, a handle 9, a fixing plate 12 and a connecting arm 13 which are connected with each other, the fixing plate 12 is fixedly installed on the outer side of the cabinet door and provided with the connecting arm 13, and the handle 9 is movably connected with the connecting arm 13, so that the relative movement of the handle 9 on the cabinet door is realized.

Specifically, the rotary lock 8 includes a fixing portion and a limiting portion which can rotate relatively, and the fixing portion is fixedly connected with the handle 9. The end of the fixing plate 12 gradually moves away from the cabinet door to form a protruding clamping plate which is matched with the limiting part. When the rotary lock 8 is rotated, the limiting part and the clamping plate can be clamped with each other, the handle 9 and the fixing plate 12 are fixed, and the false opening is prevented; the rotating lock 8 is rotated continuously, the limiting part and the clamping plate can be staggered, so that the handle is separated from the limitation of the rotating lock 8 and can move around the connecting arm.

Specifically, friction particles protruding out of the surface are arranged on the handle 9, and ABS is formed in an injection molding mode.

The whole driving rod is L-shaped, one end of the driving rod is connected with the connecting rod, and the other end of the driving rod is a U-shaped notch.

The L-shaped bent part of the upper driving rod 10 is provided with a third hole 16, the L-shaped bent part of the lower driving rod 18 is provided with a fourth hole 18, and the gaps of the upper driving rod 10 and the lower driving rod 18 are mutually overlapped or/and contacted to form a fifth hole 17.

Specifically, the upper driving rod 10, the fixing arm 13 and the handle 9 are fixed by a first pin 19, the handle 9 can rotate relatively around the first pin 19, and the upper driving rod 10 can rotate relatively around the first pin 19. The lower driving rod 11 and the fixing arm 13 are fixed by a second pin, and the lower driving rod 11 can rotate around the second pin relatively.

Specifically, a third pin 20 is fixed on the handle 9 and is positioned in the U-shaped notches of the upper driving rod 10 and the lower driving rod 18.

Specifically, one side of the U-shaped notch of the upper driving rod 10 and one side of the U-shaped notch of the lower driving rod 11 are overlapped with each other, the other side of the U-shaped notch of the upper driving rod 10 and the other side of the U-shaped notch of the lower driving rod 11 are contacted with each other, so that the two U-shaped notches form a fifth hole 17, and the third pin is located in the fifth hole 17.

When the handle 9 rotates around the first pin 19, the third pin on the handle 9 moves relatively, and the movement drives the change of the U-shaped gap, so that two originally mutually contacted edges of the U-shaped gap are gradually overlapped, and the two originally mutually overlapped edges are gradually far away to be just mutually contacted; further driving the other end of the driving rod to move, thereby realizing the compression or extension of the spring 3.

The driving rod comprises an upper driving rod 10 and a lower driving rod 11. The driving rod penetrates through the cabinet door, extends from the outer side to the inner side of the cabinet door and is connected with the connecting rod mechanism; the driving rod can slide up and down in the hole of the cabinet door, so as to drive the connecting rod mechanism to slide up and down.

The connecting rod mechanism comprises a connecting rod, a lock tongue and a spring 3, and the connecting rod comprises an upper connecting rod 1 and a lower connecting rod 2. The connecting rod is provided with a first hole 14 and a second hole 15.

Specifically, the end of the link is fixed within the spring 3 and moves with the movement of the spring 3. The spring 3 is a return spring.

Specifically, the bottom end of the upper connecting rod 1 is fixed in the spring 3, and the top end of the lower connecting rod is fixed in the spring 3.

The end of the upper driving rod 10 passes through the first hole 14 and is fixedly connected with the upper connecting rod 1.

Through the structural design, the spring 3 drives the upper connecting rod 1 to move downwards and the lower connecting rod 2 to move upwards when being compressed; when the spring 3 is reset, the upper connecting rod 1 is driven to move upwards and the lower connecting rod 2 moves downwards.

And a bolt 6 is arranged on the connecting rod and is matched with the lock bolt.

Specifically, the upper connecting rod 1 is fixedly provided with a bolt 6 at regular intervals.

Specifically, in this embodiment, two locking tongues 6 are disposed on a surface of the upper link 1 near the lock bolt 7, and are fixedly connected through the second hole 15. But not limited thereto, three, four, etc. can be installed according to the requirement of the centrally installed cabinet.

In the prior art, the centrally installed switchgear is opened by adopting a single screw type door lock structure, and is required to be disassembled one by one, so that the centrally installed switchgear is very inconvenient to use. Two connecting rod structure about this embodiment adopts is equipped with two at least spring bolts, uses in putting the cabinet in, can realize pinning the set bar of a plurality of positions about simultaneously, also can unblank in step multiple spot, increases the security of cabinet door.

Specifically, the surface of the lock tongue 6 abutting against the lock bolt 7 is an arc surface; the lock bolt 7 comprises a cone at the end part and a cylinder arranged behind the cone, and the diameter of the cylinder is smaller than the diameter of the bottom surface of the cone.

Specifically, the structure and the connection mode of the lower connecting rod 2 are the same as those of the upper connecting rod 1, and the directions are opposite.

The guide upper cover 5 is provided above the guide 4 and fixedly connected by bolts.

Specifically, the guide 4 includes a "C" shaped fixing portion and a "one" shaped connecting portion, and ends of the fixing portion are connected by the connecting portion. The fixing part of the guide 4 is fixed on the cabinet door, and the connecting rod penetrates through the holes formed by the guide 4 and the guide upper cover 5.

Specifically, the connecting rod can be directly put into the guide 4, fixed in position, and then the guide upper cover 5 is installed, and fixed and installed through screws, so that the connecting rod just penetrates through the hole between the guide 4 and the guide upper cover 5. The connecting rod in the prior art directly penetrates through a hole in the middle of the guide piece, and the assembly is difficult. The structure of this embodiment can be earlier with the position determination of guide and connecting rod good, installs the guide upper cover again, makes things convenient for workman's preparation and installation, improves work efficiency.

When the door is opened, the limiting part of the rotary lock 8 gradually leaves the clamping plate of the fixing plate through the rotation of the rotary lock 8, and the limiting state is released, so that the handle 9 can move freely; the handle 9 is lifted upwards to drive the driving rod to do relative motion, the spring is compressed to drive the connecting rods to move relatively, and the upper connecting rod 1 moves downwards and the lower connecting rod 2 moves upwards; the lock tongue 6 on the connecting rod is further driven to move to be separated from the lock bolt 7, and then the cabinet door and the cabinet body are in an openable state.

After the cabinet door is opened, the spring 3 automatically resets, and the handle 9 gradually returns to the initial position.

When the door is closed, the arc-shaped surface of the lock tongue 6 and the conical surface of the lock bolt 7 are mutually abutted, guided and slid, so that the connecting rod is pushed to move, and finally the spring is compressed; until the bolt 6 moves to exceed the arc surface of the lock bolt 7, the spring 3 is not compressed and reset, and the self-locking of the cabinet door is realized. This makes it possible to avoid the risk of the cabinet door opening suddenly during a maintenance operation.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. The utility model provides a quick-open lock suitable for put cabinet which characterized in that: the locking mechanism comprises an operating mechanism, a driving rod, a connecting rod, a spring, a lock bolt and a lock bolt, wherein the operating mechanism is movably connected with the driving rod, the driving rod is fixedly connected with the connecting rod, and the lock bolt is matched with the lock bolt;

2. The quick-release lock applicable to the centrally-mounted cabinet according to claim 1, wherein: the position that the connecting rod is close to the tip is equipped with first hole, and the actuating lever passes through first hole and connecting rod interconnect.

3. The quick-release lock applicable to the centrally-mounted switchgear as claimed in claim 2, wherein: the connecting rod comprises an upper connecting rod and a lower connecting rod, the bottom end of the upper connecting rod is fixed in the spring, and the top end of the lower connecting rod is fixed in the spring; the connecting rod is provided with a second hole and is connected with the bolt through the second hole.

4. The quick-release lock applicable to the centrally-mounted cabinet according to claim 1, wherein: the driving rod comprises an upper driving rod and a lower driving rod, the upper driving rod, the fixed arm and the handle are connected through a first pin, and the lower driving rod and the fixed arm are connected through a second pin; and a third pin is arranged on the handle and is positioned in a fifth hole formed by the mutual connection of the upper driving rod and the lower driving rod.

5. The quick-release lock applicable to the centrally-mounted switchgear, according to claim 4, is characterized in that: one end of each of the upper driving rod and the lower driving rod is a U-shaped notch, one side of the U-shaped notch of the upper driving rod and one side of the U-shaped notch of the lower driving rod are overlapped with each other, and the other side of the U-shaped notch of the upper driving rod and the other side of the U-shaped notch of the lower driving rod are in contact with each other; the third pin is positioned in a fifth hole formed by the two U-shaped notches.

6. The quick-release lock applicable to the centrally-mounted cabinet according to claim 1, wherein: the surface of the lock tongue, which is abutted against the lock bolt, is an arc surface.

7. The quick-release lock applicable to the centrally-mounted cabinet according to claim 1, wherein: operating device includes handle, linking arm, fixed plate and rotatory lock, swing joint between handle and the linking arm, linking arm fixed connection is on the fixed plate, the one end of rotatory lock is fixed on the linking arm, and the other end is fixed relatively with the fixed plate.

8. The quick-release lock applicable to the centrally-mounted switchgear, according to claim 7, wherein: the rotary lock comprises a fixing part and a limiting part rotating relative to the fixing part, and the limiting part and the fixing plate are fixed relative to each other.

9. The quick-release lock applicable to the centrally-mounted cabinet according to claim 1, wherein: the guide piece upper cover is arranged above the guide piece and is fixed through a bolt.

10. The quick-release lock applicable to the centrally-mounted switchgear as claimed in claim 9, wherein: the guide piece comprises a C-shaped fixing part and a I-shaped connecting part, and the ends of the fixing part are connected through the connecting part.