Locking mechanism and surge protection device

Abstract

The embodiment of the utility model discloses a locking mechanism and a surge protection device. The surge protection device comprises a locking mechanism and a plurality of wire clamps. The lock mechanism includes: a housing; the locking piece is movably arranged in the shell; the elastic piece is connected with the locking piece and the shell; the operating part is movably arranged in the shell and comprises a handle located outside the shell, and the handle is used for controlling the operating part to move between a locking position and an unlocking position; when the operating piece is located at the locking position, the elastic piece drives part of the locking piece to extend out of the shell; when the operating piece is located at the unlocking position, the operating piece drives the locking piece to overcome the elastic force of the elastic piece and retract into the shell. The device has the advantages of being simple in structure and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment, and in particular to a locking mechanism and a surge protector. Background Art

[0002] The surge protector in the cabinet is installed in a plug-in manner. There is no need to strip wires or tighten screws like a rail-type surge protector. There is also no need to remove the PCB and re-solder a new module during maintenance like a board-mounted surge protector. This avoids the tedious work of maintenance and effectively reduces costs.

[0003] Existing surge protectors are mostly removed by pressing a button on the handle and then pulling it out, which is inconvenient to use and inconsistent with the appearance, installation, and maintenance methods of terminal electrical appliances in the cabinet. For example, circuit breakers in the cabinet are mostly unlocked by pulling out the handle to remove the product. However, if the locking and unlocking method of the circuit breaker is directly adopted in the surge protector, the structure will be complicated and the cost will be high. Utility Model Content

[0004] The main purpose of the utility model is to provide a locking mechanism and a surge protector, aiming to solve the above problems existing in the prior art.

[0005] To achieve the above object, the utility model provides a locking mechanism, characterized in that it is used for a pluggable surge protector, comprising:

[0006] A housing including a limit slot;

[0007] a locking member movably disposed in the housing;

[0008] an elastic member, connecting the locking member and the housing;

[0009] an operating member, movably disposed in the housing, comprising a limiting block located in the limiting groove and a handle located outside the housing; the handle is used to control the movement of the operating member between a locked position and an unlocked position; the limiting groove limits the movement of the operating member between the locked position and the unlocked position by limiting the displacement of the limiting block;

[0010] When the operating member is in the locking position, the elastic member drives part of the locking member to extend out of the housing;

[0011] When the operating member is in the unlocking position, the operating member drives the locking member to overcome the elastic force of the elastic member and retract into the housing.

[0012] In some embodiments,

[0013] The housing comprises a rotating shaft and a notch;

[0014] The locking member is rotatably sleeved on the rotating shaft;

[0015] When the operating member is in the locking position, part of the locking member extends out from the notch.

[0016] In some embodiments,

[0017] The locking member comprises:

[0018] A body, rotatably mounted on the rotating shaft;

[0019] A first rotating arm is fixed on the body and connected to the elastic member, and one end of the first rotating arm away from the elastic member has a first protrusion; when the operating member is in the locking position, the first protrusion extends from the notch;

[0020] The second rotating arm is fixed on the main body at a distance from the first rotating arm. When the operating member is in the unlocking position, the operating member drives the second rotating arm.

[0021] In some embodiments,

[0022] The first rotating arm is provided with a second protrusion on a side facing away from the first protrusion;

[0023] The housing has a positioning groove;

[0024] The elastic member comprises a spring;

[0025] One end of the spring is sleeved and fixed to the second protrusion, and the other end abuts against the positioning groove.

[0026] In some embodiments,

[0027] The housing comprises:

[0028] A socket located in the extension direction of the spring;

[0029] The plug-in connector comprises a main body and a positioning portion; the main body is inserted into the insertion hole; the positioning portion is fixed on a side of the main body facing the spring;

[0030] The positioning portion forms the positioning groove on a side facing the spring.

[0031] In some embodiments,

[0032] The spring, the positioning groove and the main body are on the same straight line.

[0033] In some embodiments,

[0034] The first protrusion has an inclined surface facing an insertion direction of the surge protector.

[0035] In some embodiments,

[0036] The operating member also includes:

[0037] A strip-shaped base, the handle is fixed at one end of the base; there are two limit blocks, which are respectively fixed on both sides of the base;

[0038] A baffle extends from the other end of the base toward the locking member and drives the locking member when the operating member is in the unlocking position.

[0039] In some embodiments,

[0040] A moving direction of the operating member from the locking position to the unlocking position is the same as a pulling-out direction of the surge protector.

[0041] In addition, to achieve the above-mentioned purpose, the utility model also proposes a surge protector, which is characterized by comprising:

[0042] The locking mechanism of any of the preceding embodiments;

[0043] A plurality of wire clips are fixed to an end of the housing away from the handle.

[0044] The locking mechanism and surge protector proposed in this application utilize a movable handle to complete the unlocking and locking of the mechanism. When inserted into a cabinet during installation, the cabinet side wall squeezes the portion of the locking piece that protrudes from the housing, so that the locking piece is automatically retracted into the housing. When reaching a suitable position, the locking piece partially extends to lock the product in the cabinet; when disassembling, the handle is moved to the unlocking position, the locking piece is retracted, the product is unlocked, and the product can be removed smoothly. The structure is simple, and the consistency of the power distribution products in the cabinet in terms of appearance, installation and maintenance operation methods, etc. can also be ensured.

[0045] Furthermore, through the cooperation of the limit groove and the limit block, the operating member can only move between the locked position and the unlocked position. At the same time, the movement direction of the operating member from the locked position to the unlocked position is limited to the same direction as the product removal direction, so that the "pull-out" handle can complete the unlocking and removal of the product at the same time, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0047] The methods, systems and / or programs in the accompanying drawings will be further described according to exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, wherein reference numerals represent similar mechanisms in the various views of the accompanying drawings.

[0048] Figure 1 This is a schematic diagram of the structure of a surge protector with a locking mechanism according to some embodiments of the present application when it is in a locked state before being inserted into a cabinet;

[0049] Figure 2 This is a schematic structural diagram of a surge protector with a locking mechanism according to some embodiments of the present application when the surge protector is in an unlocked state before being pulled out of a cabinet;

[0050] Figure 3 yes Figure 1 A magnified image of area A;

[0051] Figure 4 yes Figure 2 Magnified view of area B.

[0052] Icons: 100-housing, 110-shaft, 120-notch, 130-jack, 140-connector, 141-main body, 142-positioning part, 143-positioning groove, 150-limiting groove, 200-locking piece, 210-main body, 220-first rotating arm, 221-first protrusion, 222-second protrusion, 223-inclined surface, 230-second rotating arm, 300-elastic piece, 400-operating piece, 410-base, 420-handle, 430-limiting block, 440-baffle, 500-wire clamp, 600-cabinet, 610-locking hole. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0056] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0057] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0058] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] Figure 1 is a schematic structural diagram of a surge protector with a locking mechanism in an embodiment of the present application in a locked state before being inserted into a cabinet 600; Figure 2 6 is a schematic diagram of the structure of the surge protector with a locking mechanism in the embodiment of the present application when it is in an unlocked state before being withdrawn from the cabinet 600. Figure 1 and Figure 2 The surge protector of the embodiment of the present application is pluggable and is used in the cabinet 600. For ease of explanation, the positive direction of the X-axis is the insertion direction, which is hereinafter referred to as the front end; the negative direction of the X-axis is the withdrawal direction, which is hereinafter referred to as the rear end. The surge protector is provided with a plurality of wire clips 500 at the front end. When the surge protector is inserted into the cabinet 600, the plurality of wire clips 500 clamp the wire row in the cabinet 600, so that the surge protector is connected to the circuit.

[0060] The surge protector is provided with a locking mechanism at the rear end, which includes a housing 100 , a locking member 200 , an elastic member 300 , and an operating member 400 .

[0061] The housing 100 has a substantially cubic shape. Figure 1 and Figure 2 The inner structure of the housing 100 after opening includes a bottom plate in the XY plane and side plates around the bottom plate. The bottom plate is used to place components such as a locking member 200, an elastic member 300, an operating member 400, and a plurality of wire clips 500. The locking member 200 is movably disposed in the housing 100. The elastic member 300 connects the locking member 200 and the housing 100. The operating member 400 is movably disposed in the housing 100, and includes a handle 420 located outside the housing 100. The operating member 400 has a locking position and an unlocking position. The handle 420 is used for a user to hold and control the operating member 400 to move between the locking position and the unlocking position.

[0062] like Figure 1 As shown, the operating member 400 is in the locking position, and the elastic member 300 drives part of the locking member 200 to extend out of the housing 100. During the process of inserting the surge protector into the cabinet 600, the side wall of the cabinet 600 squeezes the part of the locking member 200 extending out of the housing 100, so that the locking member 200 is automatically retracted into the housing 100. The side wall of the cabinet 600 has a locking hole 610. When the surge protector moves to the locking hole 610 of the side wall, the locking member 200 is no longer squeezed by the side wall and extends into the locking hole 610 again, preventing the surge protector from continuing to move, thereby fixing the surge protector on the cabinet 600 and preventing it from falling off from the cabinet 600.

[0063] like Figure 2 As shown, when the surge protector fails and needs to be repaired or replaced, the user holds the handle 420 to put the operating member 400 in the unlocked position, and the operating member 400 drives the locking member 200 so that the locking member 200 overcomes the elastic force of the elastic member 300 and is retracted from the locking hole 610 into the housing 100. After unlocking the locking mechanism, the user can smoothly take the surge protector out of the cabinet 600.

[0064] Figure 3 yes Figure 1 A magnified image of area A; Figure 4 yes Figure 2 Enlarged view of area B in the middle. Please refer to Figure 3-Figure 4The locking member 200 includes a body 210, a first rotating arm 220, and a second rotating arm 230. The housing 100 has a rotating shaft 110, and the body 210 of the locking member 200 is rotatably sleeved on the rotating shaft 110. The first rotating arm 220 is fixed to the body 210. The first rotating arm 220 has a first protrusion 221 extending laterally at one end away from the body 210, and the housing 100 is provided with a notch 120 on the side plate corresponding to the first protrusion 221. When the locking member 200 rotates a certain angle, the first protrusion 221 can extend from the notch 120. Optionally, the first protrusion 221 has an inclined surface 223 facing the insertion direction, so that the side wall of the cabinet 600 can more smoothly press the first protrusion 221 back into the housing 100 when inserted. The first rotating arm 220 also has a second protrusion 222 on the other side away from the first protrusion 221. The second rotating arm 230 is fixed on the body 210 and is spaced apart from the first rotating arm 220 by a certain angle.

[0065] The elastic member 300 in this embodiment includes a spring. It can be understood that the elastic member 300 can also be other elastic structures such as a spring sheet. The housing 100 is provided with a socket 130 and a connector 140 on the bottom plate in the extension direction of the spring. The connector 140 includes a main body 141 and a positioning portion 142. The main body 141 is a cylinder and is inserted and fixed in the socket 130. The positioning portion 142 is fixed on the side of the main body 141 facing the spring. The positioning portion 142 forms a positioning groove 143 on the side facing the spring. One end of the spring is sleeved and fixed on the second protrusion 222, and the other end abuts against the positioning groove 143. The spring, the positioning groove 143, and the main body 141 are on the same straight line to reduce the lateral movement of the spring during compression and rebound, avoid lateral deformation and failure of the spring, and avoid the rotation of the positioning groove 143 and the main body 141, thereby preventing the spring from detaching from the positioning groove 143.

[0066] The operating member 400 also includes a strip-shaped base 410, a limit block 430, and a baffle 440. The base 410 passes through the side plate of the housing 100. The handle 420 is fixed to the rear end of the base 410. The baffle 440 is fixed to the front end of the base 410. There are two limit blocks 430, which are respectively fixed on both sides of the base 410. The housing 100 is provided with a limit groove 150 on the side plate to accommodate the limit block 430. The limit groove 150 can limit the displacement distance of the limit block 430 in the X-axis direction.

[0067] When the user pulls out the handle 420 to put the operating member 400 in the unlocked position, the baffle 440 of the operating member 400 abuts against the second rotating arm 230 and transmits force to the second rotating arm 230, so that the locking member 200 overcomes the elastic force of the spring and rotates a certain angle, and the first protrusion 221 retracts into the housing 100. At this time, the limit groove 150 limits the pull-out stroke of the handle 420, thereby limiting the rotation angle of the locking member 200, avoiding the situation where the baffle 440 is separated from the second rotating arm 230 and cannot be automatically reset after the locking member 200 rotates too much, and can also avoid the spring from being damaged due to excessive compression. Since the moving direction of the operating member 400 from the locked position to the unlocked position is the same as the pull-out direction of the product, the user can complete the unlocking and removal of the product by pulling out the handle 420, which is more convenient to use.

[0068] It can be understood that if the user pulls out the handle 420 and then releases it, the locking member 200 rotates in the opposite direction under the elastic force of the spring, and the first protrusion 221 extends out of the housing 100. At the same time, during the reverse rotation of the locking member 200, the second rotating arm 230 pushes the baffle 440, so that the operating member 400 returns to the locked position. At this time, the limiting groove 150 limits the pushing stroke of the handle 420 to prevent the handle 420 from extending too far into the housing 100 and interfering with other components.

[0069] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A locking mechanism, characterized in that: For use with pluggable surge protectors, including: The housing (100) includes a limiting groove (150); A locking member (200) movably disposed in the housing (100); An elastic member (300) connecting the locking member (200) and the housing (100); An operating member (400) is movably arranged in the housing (100), comprising a limiting block (430) located in the limiting groove (150) and a handle (420) located outside the housing (100); the handle (420) is used to control the movement of the operating member (400) between a locked position and an unlocked position; the limiting groove (150) limits the movement of the operating member (400) between the locked position and the unlocked position by limiting the displacement of the limiting block (430); When the operating member (400) is in the locking position, the elastic member (300) drives part of the locking member (200) to extend out of the housing (100); When the operating member (400) is in the unlocking position, the operating member (400) drives the locking member (200) to overcome the elastic force of the elastic member (300) and retract into the housing (100).

2. The locking mechanism according to claim 1, characterized in that: The housing (100) comprises a rotating shaft (110) and a notch (120); The locking member (200) is rotatably sleeved on the rotating shaft (110); When the operating member (400) is in the locking position, part of the locking member (200) extends out from the notch (120).

3. The locking mechanism according to claim 2, characterized in that: The locking member (200) comprises: A body (210) is rotatably mounted on the rotating shaft (110); a first rotating arm (220) fixed on the body (210) and connected to the elastic member (300); an end of the first rotating arm (220) away from the elastic member (300) having a first protrusion (221); when the operating member (400) is in the locking position, the first protrusion (221) extends out from the notch (120); The second rotating arm (230) is fixed on the body (210) at a distance from the first rotating arm (220); when the operating member (400) is in the unlocking position, the operating member (400) drives the second rotating arm (230).

4. The locking mechanism according to claim 3, characterized in that: The first rotating arm (220) is provided with a second protrusion (222) on a side facing away from the first protrusion (221); The housing (100) has a positioning groove (143); The elastic member (300) comprises a spring; One end of the spring is sleeved and fixedly mounted on the second protrusion (222), and the other end abuts against the positioning groove (143).

5. The locking mechanism according to claim 4, characterized in that: The housing (100) comprises: A plug hole (130) located in the extension direction of the spring; The plug-in connector (140) comprises a main body (141) and a positioning portion (142); the main body (141) is inserted into the insertion hole (130); the positioning portion (142) is fixed on a side of the main body (141) facing the spring; The positioning portion (142) forms the positioning groove (143) on a side facing the spring.

6. The locking mechanism according to claim 5, characterized in that: The spring, the positioning groove (143) and the main body (141) are on the same straight line.

7. The locking mechanism according to claim 3, characterized in that: The first protrusion (221) has an inclined surface (223) facing the insertion direction of the surge protector.

8. The locking mechanism according to claim 1, wherein: The operating member (400) further comprises: A strip-shaped base (410), wherein the handle (420) is fixed at one end of the base (410); and there are two limit blocks (430), which are respectively fixed at two sides of the base (410); A baffle (440) extends from the other end of the base (410) toward the locking member (200) and drives the locking member (200) when the operating member (400) is in the unlocking position.

9. The locking mechanism according to claim 1, wherein: The moving direction of the operating member (400) from the locking position to the unlocking position is the same as the pulling-out direction of the surge protector.

10. A surge protector, characterized in that: include: The locking mechanism according to any one of claims 1 to 9; A plurality of wire clips (500) are fixed to an end of the housing (100) away from the handle (420).

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