Terminal block protection cover positioning structure

Abstract

The application discloses a terminal block protection cover positioning structure, which comprises a terminal block and a protection cover. An opening part is formed on the terminal block, and the protection cover can cover the surface of the opening part of the terminal block. The circumferential outer side wall of the protection cover is connected with the side wall of the terminal block through an elastic support body. The two ends of the elastic support body are hard structures, and a flexible connecting belt with a reduced thickness is formed in the middle of the elastic support body. The circumferential outer side wall of at least one side of the protection cover is further connected with the side wall of the terminal block through an elastic rebound body. The elastic rebound body is a spring sheet which can produce elastic deformation under stress. When the surface of the protection cover is perpendicular to the opening part of the terminal block, the elastic rebound body is in a straight line state, and the hard structures at the two ends of the elastic support body are located on the same plane. The application can form stable support in different opening states of the protection cover, is favorable for improving construction efficiency, and can also avoid loss in the construction process.

Description

TECHNICAL FIELD

[0001] The application relates to a terminal block, in particular to a terminal block protective cover positioning structure. BACKGROUND

[0002] An opening part is arranged on the terminal block to allow a wiring tool to be inserted, and then the wiring tool is operated to realize fixed connection or disconnection of the terminal block and a wire. Since the opening part is communicated with the inside of the terminal block, after wiring and disconnection, the wiring tool is withdrawn from the opening part, and a protective cover is used to close the opening part to prevent dust and other pollutants from entering the inside of the terminal block and affecting the electrical signal transmission stability of the terminal block.

[0003] At present, the protective cover and the terminal block are either a split structure or connected through a flexible supporting rib.

[0004] When the protective cover and the terminal block are in a split structure, the protective cover is completely separated from the terminal block after being opened, and needs to be placed aside. In this case, the protective cover is easy to be lost.

[0005] When the protective cover is connected to the terminal block through a flexible supporting rib, the flexible supporting rib is soft, and has no supporting and positioning effect on the protective cover. In the opened state, the protective cover is moved randomly on the terminal block. During wiring, the protective cover interferes with the normal operation of the construction personnel, is not conducive to the normal construction of the terminal block, and affects the construction efficiency of the terminal block. SUMMARY

[0006] In order to overcome the above defects, the application provides a terminal block protective cover positioning structure which can keep stable positioning connection with the terminal block when the protective cover is opened, and will not cause the protective cover to be lost or affect the normal construction of the construction personnel.

[0007] The technical scheme adopted by the application to solve the technical problems is as follows: a terminal block protective cover positioning structure, comprising a terminal block and a protective cover, an opening part is formed on the terminal block, the protective cover can cover the surface of the opening part of the terminal block, the circumferential outer wall of the protective cover is connected to the side wall of the terminal block through an elastic supporting body, the two ends of the elastic supporting body are hard structures, a flexible connecting belt with a reduced thickness is formed in the middle of the elastic supporting body, the circumferential outer wall of at least one side of the protective cover is further connected to the side wall of the terminal block through an elastic rebound body, the elastic rebound body is a spring sheet which can produce elastic deformation under stress, when the surface of the protective cover and the opening part of the terminal block are perpendicular, the elastic rebound body is in a straight line state, and the hard structures at the two ends of the elastic supporting body are located on the same plane.

[0008] As a further improvement of the present application, the two elastic rebound bodies are symmetrically distributed on both sides of the elastic support body.

[0009] As a further improvement of the present application, the terminal base is provided with a positioning slot on one side of the opening part, and a positioning seat is further provided, which can be fixedly inserted into the positioning slot, and one end of the elastic support body and the elastic rebound body away from the protective cover is respectively connected to the side wall of the positioning seat.

[0010] As a further improvement of the present application, the positioning slot is an arc-shaped opening slot concentric with the opening part on the terminal base, and the positioning seat is an arc-shaped sheet structure matching the shape of the positioning slot.

[0011] As a further improvement of the present application, the first buckle structure is provided on the inner side wall of the positioning slot, and the second buckle structure is provided on the side wall of the positioning seat, and the first buckle structure and the second buckle structure can be fixedly connected by buckling.

[0012] As a further improvement of the present application, the positioning slot is a T-shaped stepped slot with the size of the opening end being larger than the size of the bottom, and the positioning seat is provided with stop sheets on both sides of one end facing the opening direction of the positioning slot, and the stop sheets on the positioning seat stop on the stepped surface of the positioning slot.

[0013] As a further improvement of the present application, the inner side of the positioning slot is further provided with a vertical guide rib extending in the depth direction of the positioning slot, and the positioning seat is provided with an opening-shaped guide socket at one end facing the bottom direction of the positioning slot, and the vertical guide rib in the positioning slot can be inserted into the opening-shaped guide socket of the positioning seat.

[0014] As a further improvement of the present application, one end of the elastic support body connected with the protective cover is closer to the opening direction of the protective cover than one end of the elastic rebound body connected with the protective cover, and one end of the elastic support body connected with the terminal base is closer to the opening direction of the opening part of the terminal base than one end of the elastic rebound body connected with the terminal base.

[0015] As a further improvement of the present application, the side wall of the protective cover is further provided with a guide opening slot structure capable of accommodating one end of the elastic rebound body, and the two side walls of one end of the elastic rebound body in the width direction are respectively stopped on the two side walls of the guide opening slot structure.

[0016] As a further improvement of the present application, a flange structure is formed on the outside of the opening part of the terminal base, and the protective cover can be sleeved on the outside of the flange structure, a third buckle structure is further provided on the inner side wall of one end of the protective cover away from the elastic support part, a fourth buckle structure is provided on the flange structure outside the opening part of the terminal base, the third buckle structure can be elastically connected with the fourth buckle structure by buckling, and a operating handle extending in the opening direction of the protective cover is further fixedly provided on the outer side wall of one end of the protective cover away from the elastic support part.

[0017] The beneficial effects of the present application are: the present application sets the elastic support body and the elastic rebound body between the protective cover and the terminal table, and the elastic rebound body is from the bending state to the straightening state to the reverse bending state during the opening of the protective cover, which cooperates with the elastic support body, so that the protective cover can form stable support in different opening states, so that the protective cover can maintain a stable opening state, avoid shaking during construction, and thus avoid affecting the construction of the construction personnel, ensure the smooth construction, improve the construction efficiency, and because the protective cover and the terminal table are always connected together through the elastic support body and the elastic rebound body, the protective cover will not be lost during construction, and the elastic force of the elastic rebound body makes the protective cover form a critical state when it is turned to be perpendicular to the plane of the opening part of the terminal table, and after the protective cover is continuously applied to the direction of the opening part of the terminal table, the protective cover will be quickly turned to cover the opening part of the terminal table under the elastic force of the elastic rebound body, and when the protective cover of the present application covers and closes the opening part of the terminal table, the third buckle structure and the fourth buckle structure are connected and positioned, and the elastic support of the elastic rebound body improves the stable state of the protective cover and the terminal table covering and closing, and avoids being opened by mistake. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the prior art;

[0019] Figure 2 is a protective cover opening and closing process state diagram of the prior art;

[0020] Figure 3 is a perspective view of the protective cover of the present application;

[0021] Figure 4 is a perspective view of the terminal table of the present application;

[0022] Figure 5 is a protective cover closing the opening part of the terminal table state diagram of the present application;

[0023] Figure 6 is a protective cover and terminal table buckling critical state diagram of the present application;

[0024] Figure 7 is Figure 6 is an enlarged view of A part in the middle;

[0025] Figure 8 is a protective cover fully buckling state diagram of the present application;

[0026] Figure 9 is a wiring terminal table wiring state diagram using the present application. DETAILED DESCRIPTION

[0027] The utility model discloses a terminal board protection cover positioning structure, including terminal board 22 and protection cover 21, the opening part is formed on terminal board 22, protection cover 21 can cover on the surface of terminal board 22 opening part, and the circumferential outer side wall of protection cover 21 is connected with the side wall of terminal board 22 through a elastic support 213, the both ends of elastic support 213 are hard structure, and the flexible connecting band of thinning thickness is formed in the middle of elastic support 213, the circumferential outer side wall of protection cover 21 at least one side of elastic support 213 is also connected with the side wall of terminal board 22 through elastic rebound body 212, the elastic rebound body 212 is the elastic sheet that can produce elastic deformation under stress, when the surface of protection cover 21 and the opening part of terminal board 22 is perpendicular, the elastic rebound body 212 is straight line state of stretching, and the hard structure of both ends of elastic support 213 is just located on the same plane.

[0028] The protection cover 21 of the utility model keeps connecting with terminal board 22 through elastic support 213, and the elastic rebound body 212 connected with the side wall of protection cover 21 and terminal board 22 is set respectively, the elastic rebound body 212 can be plastic piece or metal elastic sheet, and the elastic rebound body 212 provides elastic holding force for protection cover 21 and interacts with elastic support, to realize the positioning of protection cover 21 at different positions.

[0029] When protection cover 21 covers and closes with the opening part of terminal board 22, elastic support 213 is folded along the flexible connecting band in the middle, and the both ends are flat together, and the elastic rebound body 212 produces the arc elastic deformation of the same bending direction with elastic support 213, at this time, the elastic rebound body 212 provides the elastic holding force of keeping the state of fastening for protection cover 21, at this time, protection cover 21 keeps the stable covering and closing state to the opening part of terminal board 22.

[0030] When pulling protection cover 21 to make it gradually open, the included angle of protection cover 21 and the plane of the opening part of terminal board 22 gradually increases, and elastic support 213 gradually develops from the folded state to the flat state, when protection cover 21 is perpendicular to the surface of the opening part of terminal board 22, elastic support 213 just flattens, at this time, the hard structure of both ends of elastic support 213 respectively directly extrudes the flexible connecting band in the middle, at this time, the flexible connecting band of elastic support 213 is extruded to the maximum degree, and at the same time, the elastic rebound body 212 just turns to the straight state, at this time, the elastic rebound body 212, the side wall of protection cover 21 and elastic support 213 form a stable triangle structure, at this time, protection cover 21 can keep the stable state, and the state is the critical state of protection cover 21.

[0031] Continue to apply force to the protective cover 21 towards the opening direction, the protective cover 21 continues to turn over, the elastic rebound body 212 is reversely bent and deformed, the elastic support body 213 breaks the state of symmetrical extrusion of the two ends of the hard structure to the middle flexible connecting belt, the elastic support body 213 forms a relaxed state, and the elastic rebound body 212 will keep the protective cover 21 at a stable opening angle under the action of its elastic force;

[0032] When the protective cover 21 is completely opened and at a stable opening angle, the wiring tool can be inserted into the opening portion of the terminal table 22 to operate the screw in the terminal table 22, realize wiring or disconnection construction, after the construction is completed, the wiring tool is taken out, the protective cover 21 is reversely pulled and automatically buckled on the opening portion of the terminal table 22 under the action of the elastic force of the elastic rebound body 212, the present application has the advantages of simple structure, can keep the protective cover 21 at a stable opening state and closed state, does not interfere with the construction, and does not appear the situation that the protective cover 21 is lost due to construction.

[0033] The two elastic rebound bodies 212 are symmetrically distributed on both sides of the elastic support body 213. The structure balances the force of the protective cover 21, ensures smooth opening and closing, and avoids tilting.

[0034] The terminal table 22 is provided with a positioning slot 221 on one side of the opening portion, and is also provided with a positioning seat 214, the positioning seat 214 can be fixedly inserted into the positioning slot 221, and the ends of the elastic support body 213 and the elastic rebound body 212 away from the protective cover 21 are connected to the side walls of the positioning seat 214. The structure realizes separate production and manufacturing of the terminal table 22 and the protective cover 21, reduces the mold manufacturing cost, and realizes positioning through plug-in assembly, which is simple in structure, convenient and fast in assembly. In addition, the two can also be made into an integrated structure or a structure assembled by a connecting piece, and such equivalent design schemes are easy to be thought of by those skilled in the art according to the present application, and belong to the protection range of the present application.

[0035] The positioning slot 221 is an arc-shaped opening slot concentric with the opening portion of the terminal table 22, and the positioning seat 214 is an arc-shaped sheet structure matched with the outer shape of the positioning slot 221.

[0036] The first buckle structure 222 is arranged on the inner side wall of the positioning slot 221, the second buckle structure 217 is arranged on the side wall of the positioning seat 214, and the first buckle structure 222 and the second buckle structure 217 can be buckled and fixedly connected. The first buckle structure 222 and the second buckle structure 217 are automatically buckled and connected when the positioning seat 214 is inserted into the positioning slot 221, the first buckle structure 222 and the second buckle structure 217 can be reverse buckle structures, and the two are hooked together, or the clamping groove and the convex clamping are connected together, and the first buckle structure 222 and the second buckle structure 217 can also be a clamping groove and a reverse buckle structure on a flexible cantilever, which are buckled together, and such equivalent design solutions are easily thought of by those skilled in the art according to the patent and belong to the protection range of the patent.

[0037] The positioning slot 221 is a T-shaped stepped groove with an opening end size greater than a bottom size, the positioning seat 214 is provided with a stop piece 216 on each side of an end facing the opening direction of the positioning slot 221, and the stop piece 216 on the positioning seat 214 is stopped on the stepped surface of the positioning slot 221. The stop piece 216 and the stepped surface of the T-shaped stepped groove form an obstruction, thereby realizing accurate positioning of the installation depth of the positioning seat 214, and thereby enabling the protective cover 21 to accurately and firmly cover the opening portion of the terminal table 22, so that the situation of being unable to stably cover does not occur.

[0038] The inner side of the positioning slot 221 is further provided with a vertical guide rib 224 extending in the depth direction of the positioning slot 221, and the positioning seat 214 is provided with an open-shaped guide socket 215 at an end facing the bottom direction of the positioning slot 221, and the vertical guide rib 224 in the positioning slot 221 can be inserted into the open-shaped guide socket 215 of the positioning seat 214. During the insertion of the positioning seat 214 and the positioning slot 221, the vertical guide rib 224 and the open-shaped guide socket 215 cooperate to guide the positioning seat 214, and at the same time, the positioning seat 214 is limited left and right to prevent it from tilting during insertion, and to prevent it from tilting and shifting due to external force during use, thereby ensuring the accuracy of the installation position of the protective cover 21.

[0039] The end of the elastic support body 213 connected with the protective cover 21 is closer to the opening direction of the protective cover 21 than the end of the elastic rebound body 212 connected with the protective cover 21, and the end of the elastic support body 213 connected with the terminal table 22 is closer to the opening direction of the opening part of the terminal table 22 than the end of the elastic rebound body 212 connected with the terminal table 22. This structure makes the overall length of the elastic support body 213 shorter, stronger, more stable, and occupies less space, while the elastic rebound body 212 maintains sufficient length to effectively deform, and the two are misaligned, so that when the opening part of the protective cover 21 and the terminal table 22 is perpendicular to the plane, the elastic rebound body 212, the elastic support body 213 and the protective cover 21 form a stable triangular structure together. In addition, the elastic support body 213 and the elastic rebound body 212 can also be an integral structure or multiple elastic support bodies 213 cooperating with the elastic rebound body 212, as long as there is a position and length difference between the elastic support body 213 and the elastic rebound body 212 to realize the limiting function, which belongs to the protection scope of the patent.

[0040] The protective cover 21 side wall is also provided with a guide opening slot structure 218 capable of accommodating one end of the elastic rebound body 212, and the two side walls of the elastic rebound body 212 along the width direction are respectively stopped on the two side walls of the guide opening slot structure 218. This structure ensures that the elastic rebound body 212 is elastically deformed along the opening and closing direction of the protective cover 21 during opening and closing, avoiding elastic deformation in other directions.

[0041] The opening part of the terminal table 22 forms a flange structure outside, and the protective cover 21 can be sleeved outside the flange structure. The inner side wall of the end of the protective cover 21 away from the elastic support part is also provided with a third buckle structure 211, and the outer side of the flange structure of the opening part of the terminal table 22 is provided with a fourth buckle structure 223. The third buckle structure 211 can be elastically buckled and connected with the fourth buckle structure 223, and the outer side wall of the end of the protective cover 21 away from the elastic support part is also fixedly provided with an operating handle 219 extending along the opening direction of the protective cover 21. After the protective cover 21 completely covers the opening part of the terminal table 22, the third buckle structure 211 and the fourth buckle structure 223 are buckled and connected to position, so that the protective cover 21 can stably cover the surface of the opening part of the terminal table 22. At the same time, a longer operating handle 219 is arranged on the protective cover 21, and when the protective cover 21 is opened, the handle forms a lever structure, which can easily and labor-savingly open the protective cover 21.

Claims

1. A terminal block protective cover positioning structure, comprising a terminal block (22) and a protective cover (21), wherein an opening is formed on the terminal block, the protective cover can cover the surface of the terminal block opening, and the outer circumferential wall of the protective cover is connected to the side wall of the terminal block via an elastic support body (213), characterized in that: Both ends of the elastic support body are hard structures, and a thinned flexible connecting belt is formed in the middle of the elastic support body. The protective cover is located on the circumferential outer wall of at least one side of the elastic support body and is also connected to the side wall of the terminal block through an elastic rebound body (212). The elastic rebound body is a spring sheet that can produce elastic deformation when subjected to force. When the protective cover is perpendicular to the surface where the opening of the terminal block is located, the elastic rebound body is in a straight linear state, and the hard structures at both ends of the elastic support body are located on the same plane. The terminal block is provided with a positioning slot (221) on one side of the opening, and is also provided with a positioning seat (214). The positioning seat can be fixedly inserted in the positioning slot. The elastic support body and the elastic rebound body are far apart. One end away from the protective cover is respectively connected to the side wall of the positioning seat, the positioning slot is an arc-shaped opening slot concentric with the opening part of the terminal block, the positioning seat is an arc-shaped sheet structure matching the shape of the positioning slot, the positioning slot is a T-shaped step slot with an opening end size larger than the bottom size, and the positioning seat is provided with stop pieces (216) on both sides of one end facing the opening direction of the positioning slot, and the stop pieces on the positioning seat are stopped on the step surface of the positioning slot, the end of the elastic support body connected to the protective cover is closer to the opening direction of the protective cover than the end of the elastic rebound body connected to the protective cover, and the end of the elastic support body connected to the terminal block is closer to the opening direction of the terminal block opening than the end of the elastic rebound body connected to the terminal block.

2. The terminal block protective cover positioning structure according to claim 1, characterized in that: The two elastic rebound bodies are symmetrically distributed on both sides of the elastic support body.

3. The terminal block protective cover positioning structure according to claim 1, characterized in that: A first snap-fit ​​structure (222) is provided on the inner side wall of the positioning slot, and a second snap-fit ​​structure (217) is provided on the side wall of the positioning seat. The first snap-fit ​​structure and the second snap-fit ​​structure can be snapped together and fixedly connected.

4. The terminal block protective cover positioning structure according to claim 1, wherein: A vertical guide rib (224) extending in the depth direction of the positioning slot is further provided on the inner side of the positioning slot, and an open guide socket (215) is provided at one end of the positioning seat toward the bottom of the positioning slot, and the vertical guide rib in the positioning slot can be inserted into the open guide socket of the positioning seat.

5. The terminal block protective cover positioning structure according to claim 1, characterized in that: The side wall of the protective cover is also provided with a guide opening groove structure (218) capable of accommodating one end of the elastic resilient body, and two side walls of one end of the elastic resilient body along its width direction are respectively stopped on the two side walls of the guide opening groove structure.

6. The terminal block protective cover positioning structure according to claim 1, characterized in that: A flange structure is formed on the outside of the opening of the terminal block, and the protective cover can be sleeved on the outside of the flange structure. A third snap-fit ​​structure (211) is provided on the inner wall of the end of the protective cover away from the elastic support portion, and a fourth snap-fit ​​structure (223) is provided on the outer side of the flange structure of the terminal block opening. The third snap-fit ​​structure can be elastically snap-fitted with the fourth snap-fit ​​structure. An operating handle (219) extending along the opening direction of the protective cover is also fixed on the outer wall of the end of the protective cover away from the elastic support portion.

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