Mounting locking and dismounting unlocking mechanism of near-square circuit breaker

Abstract

The application discloses a kind of installation locking and dismounting unlocking mechanism of near square circuit breaker, including circuit breaker shell, shell one end includes power socket and signal socket, the other end of shell is equipped with a handle and at least one terminal hole, contact operating mechanism is equipped in shell, handle is connected contact operating mechanism by connecting rod, locking and unlocking mechanism is further equipped in shell when installing, unlocking when dismounting.The application is equipped with locking and unlocking mechanism when installing, unlocking when dismounting, locking and unlocking mechanism includes pull ring, elastic member, installation locking piece, pull ring does near straight line motion in circuit breaker shell, pull ring is pressed into circuit breaker in installation direction when installing, elastic member is compressed, drives installation locking piece to be locked in the mounting hole of bottom plate, pull ring is pulled out in dismounting direction when dismounting, drives elastic member to stretch, drives installation lock piece to be released, and pull-out force is transmitted to shell, and entire circuit breaker is pulled out, to realize simpler and more reliable operation division of labor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical appliances, in particular to an installation locking and dismounting unlocking mechanism of a near-square circuit breaker. BACKGROUND

[0002] With the development of communication technology 4G, 5G and data center, the demand for power capacity is increasing, and when deploying the power distribution system, the demand for miniaturized circuit breakers is increasingly urgent, especially the number of 5G base stations is large, and the demand for power is large. How to increase the module capacity of the power distribution system by 3-5 times without increasing the space and volume is a problem that must be solved in the development of communication technology. If it can be realized, it can facilitate the upgrading of the original 4G system to the 5G system, and the volume of the newly added 5G system power distribution system is smaller, which is convenient for modularization, intelligentization and rapid deployment of power systems. SUMMARY

[0003] In order to solve the above technical problems, the present application provides an installation locking and dismounting unlocking mechanism of a near-square circuit breaker, which is simple in structure and small in floor area.

[0004] The technical scheme for solving the above problems is: an installation locking and dismounting unlocking mechanism of a near-square circuit breaker, comprising a circuit breaker shell, the shell one end comprising a plurality of power slots and a plurality of signal slots, the shell the other end being provided with a handle and at least one terminal hole, the shell being provided with a contact operating mechanism, the handle being connected to the contact operating mechanism through a connecting rod, and the shell being further provided with a locking and unlocking mechanism for locking during installation and unlocking during dismounting.

[0005] The installation locking and dismounting unlocking mechanism of the near-square circuit breaker, the locking and unlocking mechanism comprising a pull ring, an elastic member and an installation locking member, the pull ring being pullably arranged in a pulling-out groove of the shell, the outer end of the pull ring being in contact with the handle, and the inner end of the pull ring being connected to the installation locking member through the elastic member; the pull ring moves in a nearly straight line in the circuit breaker shell, the pull ring is pressed into the circuit breaker in the installation direction during installation, the elastic member is compressed, the installation locking member is locked in the mounting hole of the bottom plate, the pull ring is pulled out in the dismounting direction during dismounting, the elastic member is stretched, the installation locking member is unlocked, and the pulling-out force is transmitted to the circuit breaker shell to pull out the entire circuit breaker.

[0006] The installation locking and dismounting unlocking mechanism of the near-square circuit breaker, the outer end of the pull ring being provided with a pulling-out inclined table on one side for pulling out, the outer end of the pull ring being provided with a push handle inclined table on the other side, the end face of the push handle inclined table being in contact with the handle, the middle part of the pull ring being provided with a hollow ring with a finger space, the inner end of the pull ring being provided with a first fixing column on one side for connecting the elastic member, the inner end of the pull ring being provided with a pulling-out arc on the bottom surface, the pulling-out arc being matched with the column on the inner wall of the circuit breaker shell, and the two sides of the pull ring being straight edges.

[0007] The mounting locking and dismounting unlocking mechanism of the above-mentioned near-square circuit breaker, the elastic member comprises a first fixed ring, an elastically deformable elastic deformation ring and a second fixed ring, which are connected in sequence, the first fixed ring is connected with the first fixed column at the inner end of the pull ring, and the second fixed ring is connected with the mounting locking member.

[0008] The mounting locking and dismounting unlocking mechanism of the above-mentioned near-square circuit breaker, the mounting locking member comprises a mounting locking boss, a second fixed column and a rotating shaft, which are connected together to form an integral whole, the second fixed column is connected with the second fixed ring of the elastic member, the mounting locking boss is inserted into the mounting hole of the bottom plate, and the rotating shaft is hinged at the bottom of the shell.

[0009] The mounting locking and dismounting unlocking mechanism of the above-mentioned near-square circuit breaker, the contact operating mechanism adopts a four-bar linkage mechanism.

[0010] The mounting locking and dismounting unlocking mechanism of the above-mentioned near-square circuit breaker, the shell is provided with a limiting block for limiting the inner end of the pull ring.

[0011] The beneficial effects of the present application are that:

[0012] 1. The handle is provided, the handle is connected with the contact operating mechanism through the connecting rod, the upward closing and downward opening operation indication of the handle can be realized, the operation habit of the circuit breaker is consistent, and it is easier to identify whether the product is closed or opened.

[0013] 2. The locking and unlocking mechanism is provided for locking during installation and unlocking during dismounting, the locking and unlocking mechanism comprises a pull ring, an elastic member and a mounting locking member, the pull ring moves in a nearly straight line in the circuit breaker shell, the pull ring is pressed into the circuit breaker in the installation direction during installation, the elastic member is compressed, the mounting locking member is locked in the mounting hole of the bottom plate, the pull ring is pulled out in the dismounting direction during dismounting, the elastic member is stretched, the mounting locking member is unlocked, and the pulling force is transmitted to the circuit breaker shell, so that the circuit breaker is pulled out, and thus the operation division is simpler and more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an external structure schematic diagram of the present application.

[0015] Figure 2 It is a whole effect schematic diagram of the present application with only one wiring loop.

[0016] Figure 3 It is a whole effect schematic diagram of the present application with two wiring loops.

[0017] Figure 4 It is an internal structure overview schematic diagram of the present application when closed.

[0018] Figure 5 For Figure 4 The schematic view of the structure of the locking and unlocking mechanism.

[0019] Figure 6 For Figure 5 The schematic view of the structure after removing the contact operating mechanism.

[0020] Figure 7 The schematic view of the structure of the pull ring of the present application.

[0021] Figure 8 The schematic view of the structure of the elastic member of the present application.

[0022] Figure 9 The schematic view of the structure of the locking member of the present application.

[0023] Figure 10 The schematic view of the initial working state of the present application.

[0024] Figure 11 The schematic view of the intermediate working state of the present application.

[0025] Figure 12 The schematic view of the final working state of the present application.

[0026] Figure 13 For Figure 12 The top view. DETAILED DESCRIPTION

[0027] The present application will be further described below in combination with the drawings and examples.

[0028] As Figure 1 shown, the installation locking and dismounting unlocking mechanism of a nearly square circuit breaker comprises a circuit breaker shell 1, the shell 1 includes two power supply slots 2 and two signal slots 3 at one end, and a handle 4 and a wiring terminal hole 5 are arranged at the other end of the shell 1; if the relay has only one wiring loop, as shown in Figure 2 , there are only two wiring terminal holes 5; if the relay has two wiring loops, as shown in Figure 3 , there are four wiring terminal holes 5; a contact operating mechanism 6 is arranged in the shell 1, the contact operating mechanism 6 adopts a four-bar linkage mechanism, the handle 4 is connected to the contact operating mechanism 6 through a connecting rod 12, and a locking and unlocking mechanism for locking during installation and unlocking during dismounting is further arranged in the shell 1.

[0029] As Figures 4 to 6 shown, the locking and unlocking mechanism comprises a pull ring 7, an elastic member 8 and a locking member 9, the pull ring 7 is arranged in a pull-out groove of the shell 1 in a pull-out manner, the outer end of the pull ring 7 is in contact with the handle 4, the inner end of the pull ring 7 is connected to the locking member 9 through the elastic member 8, and a limiting block 10 for limiting the inner end of the pull ring 7 is arranged in the shell 1. AsFigure 4 As shown, when closed, the closing handle 4 can be closed, the contact operating mechanism 6 is closed, the pull ring 7 is pushed into the relay, the elastic member 8 is pushed to move downward, and after being pushed to the position, the elastic member 8 will pop the installation locking member 9 into the installation hole of the bottom plate, the installation is locked, and the entire circuit breaker cannot be pulled out.

[0030] As shown in the figure, Figure 7 The outer end of the pull ring 7 is provided with a pull-out inclined table 71 for pulling out, the other end of the pull ring 7 is provided with a push-out handle inclined table 72, the end face of the push-out handle inclined table 72 is in contact with the handle 4, the middle part of the pull ring 7 is provided with a hollow ring 73 which can be inserted into the finger space, the inner end of the pull ring 7 is provided with a first fixed column 74 for connecting the elastic member 8, the inner end bottom surface of the pull ring 7 is provided with a pull-out arc 75 which is matched with the column 11 on the inner wall of the circuit breaker shell 1, and the two sides of the pull ring 7 are guide straight edges 76.

[0031] As shown in the figure, Figure 8 The elastic member 8 comprises a first fixed ring 81, an elastically deformable elastic deformation ring 82 and a second fixed ring 83, which are connected in sequence, the first fixed ring 81 is connected with the first fixed column 74 of the inner end of the pull ring 7, and the second fixed ring 83 is connected with the installation locking member 9.

[0032] As shown in the figure, Figure 9 The installation locking member 9 comprises an installation locking boss 91, a second fixed column 92 and a rotating shaft 93, which are connected together to form an integral whole, the second fixed column 92 is connected with the second fixed ring 83 of the elastic member 8, the installation locking boss 91 is inserted into the installation hole of the bottom plate, and the rotating shaft 93 is hinged at the bottom of the shell 1.

[0033] The working principle of the present application is that the pull ring 7 moves in a nearly straight line in the circuit breaker shell 1, when installing, the pull ring 7 is pressed into the circuit breaker in the installation direction, the elastic member 8 is compressed, and the installation locking member 9 is locked in the installation hole of the bottom plate, and the entire circuit breaker is in a locked state; when the entire circuit breaker needs to be pulled out, first use a small tool, a flathead screwdriver, to pull out a small section of the pull ring 7 from the pull-out groove position, as shown in the figure, Figure 10 At the same time, the handle 4 is rotated in the direction of Figure 10 2 under the push of the push-out handle inclined table 72, and drives the contact operating mechanism 6 to disconnect through the connecting rod 12; then the pull ring 7 continues to move to the right, the elastic member 8 is stressed, pulls the installation locking member 9 upward, and leaves the locking bottom plate, and the unlocking is completed, as shown in the figure; Figure 11 The pull ring 7 continues to move until the pull-out arc 75 contacts the column 11 on the inner wall of the circuit breaker shell 1, at this time, the fingers are inserted into the hollow ring 73 of the pull ring 7, and the shell 1 is stressed to pull out the entire circuit breaker.

Claims

1. An installation locking and disassembly unlocking mechanism for a near-square circuit breaker, characterized in that: The circuit breaker housing includes a plurality of power slots and a plurality of signal slots at one end of the housing, and a handle and at least one terminal hole at the other end of the housing. A contact operating mechanism is provided inside the housing, and the handle is connected to the contact operating mechanism via a connecting rod. A locking and unlocking mechanism is also provided inside the housing for locking during installation and unlocking during disassembly. The locking and unlocking mechanism includes a pull ring, an elastic element, and a mounting locking element. The pull ring is pulled out and installed in the pull-out slot of the housing. The outer end of the pull ring contacts the handle, and the inner end of the pull ring is connected to the mounting locking element through the elastic element. The pull ring moves in a near-linear motion within the circuit breaker housing. During installation, the pull ring is pressed into the circuit breaker in the installation direction, compressing the elastic element and causing the mounting locking element to lock in the mounting hole of the base plate. During disassembly, the pull ring is pulled out in the disassembly direction, causing the elastic element to stretch and the mounting locking element to unlock. The pulling force is then transmitted to the circuit breaker housing, pulling out the entire circuit breaker. The elastic element includes a first fixing ring, an elastically deformable elastic deformation ring, and a second fixing ring. The first fixing ring, the elastic deformation ring, and the second fixing ring are connected in sequence. The first fixing ring is connected to the first fixing post at the inner end of the pull ring, and the second fixing ring is connected to the mounting locking element. The mounting and locking component includes a mounting and locking boss, a second fixing post, and a rotating shaft. The mounting and locking boss, the second fixing post, and the rotating shaft are connected together to form a whole. The second fixing post is connected to the second fixing ring of the elastic element. The mounting and locking boss is inserted into the mounting hole of the base plate, and the rotating shaft is hinged to the bottom of the housing. The housing is provided with a limiting block to limit the inner end of the pull ring.

2. The installation locking and disassembly unlocking mechanism for the near-square circuit breaker according to claim 1, characterized in that: The outer end of the pull ring has a pull-out ramp on one side for pulling out, and a push-out handle ramp on the other side of the pull ring. The end face of the push-out handle ramp contacts the handle. The middle of the pull ring has a hollow ring that can be inserted into the space of the finger. The inner end of the pull ring has a first fixing post for connecting the elastic element on one side. The bottom surface of the inner end of the pull ring has a pull-out arc that matches the post on the inner wall of the circuit breaker housing. The two sides of the pull ring are guide straight edges.

3. The installation locking and disassembly unlocking mechanism for the near-square circuit breaker according to claim 1, characterized in that: The contact operating mechanism adopts a four-bar linkage.

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