CN218828046U

CN218828046U - Terminal row protection device

Info

Publication number: CN218828046U
Application number: CN202223278435.1U
Authority: CN
Inventors: 王果生; 曹安; 王慧强
Original assignee: Changyuan Contron Power Security Technology Co Ltd
Current assignee: Changyuan Contron Power Security Technology Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-07
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a terminal strip protection device, which comprises a lock body, a first clamping seat, a second clamping seat, a limiting rod, a positioning rod, a first elastic piece, a second elastic piece and a plurality of shielding plates; the first clamping seat is connected with the lock body and encloses to form a first sliding chute, the second clamping seat is arranged in the first sliding chute in a sliding manner, the first clamping seat and the second clamping seat jointly form a clamping chute, the shielding plates are sequentially connected, and the shielding plate at one end of the shielding plates is connected with the lock body; the limiting rod and the positioning rod are arranged on the lock body in a sliding mode, the first elastic piece is clamped between the limiting rod and the lock body, and the second elastic piece is clamped between the positioning rod and the lock body; the limiting rod is provided with a withdrawing hole and an abutting surface, the withdrawing hole extends along the moving path of the positioning rod and in the direction deviating from the second clamping seat, the withdrawing hole and the abutting surface are sequentially arranged along the moving path of the limiting rod, one end of the positioning rod abuts against the abutting surface, and the other end of the positioning rod abuts against the second clamping seat. The utility model discloses can effectively prevent that the terminal of terminal row from being bumped, maloperation or maloperation by the mistake.

Description

Terminal row protection device

Technical Field

The utility model belongs to the technical field of the terminal row protection, concretely relates to terminal row protection device.

Background

Terminal block, means an insulating member that carries a plurality or sets of terminal assemblies insulated from each other and serves to fix a support member. The terminal strip is used for connecting the lines of the equipment inside the screen and the equipment outside the screen, and plays a role in signal (current and voltage) transmission. The terminal strip is arranged, so that the wiring is attractive, the maintenance is convenient, the connection between long-distance wires is firm, and the construction and maintenance are convenient.

At present, because the terminal of terminal row has different model and specification, there is the difference in the terminal size of different models and specification, bump in order to prevent that non professional from to the wiring mistake of terminal row, maloperation or maloperation, the wiring point that can only adopt red cloth mantle or insulating tape terminal row covers, this kind of safeguard mode is unfavorable for the maintenance of terminal row, the wait of insulating tape has been of a specified duration easily to drop off, the easy emergence is bumped by the mistake, dangerous condition such as maloperation or maloperation, need often to change red cloth mantle or insulating tape, the not good and troublesome of protective effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a terminal row protection device, the utility model discloses a terminal row protection device installation is dismantled conveniently, can prevent effectively that the binding post of terminal row from being bumped, maloperation or maloperation by the mistake.

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

the terminal strip protection device comprises a lock body, a first clamping seat, a second clamping seat, a limiting rod, a positioning rod, a first elastic piece, a second elastic piece and a plurality of shielding plates; the first clamping seat and the lock body are connected and jointly enclosed to form a first sliding groove, one end of the second clamping seat is slidably arranged in the first sliding groove, the first clamping seat and the second clamping seat jointly form a clamping groove, the shielding plates are sequentially connected, and the shielding plate at one end of the shielding plates is connected with the lock body;

the limiting rod and the positioning rod are arranged on the lock body in a sliding mode, the first elastic piece is clamped between the limiting rod and the lock body, and the second elastic piece is clamped between the positioning rod and the lock body;

the limiting rod is provided with a retreating hole and an abutting surface, the retreating hole extends along the moving path of the positioning rod and in the direction deviating from the second clamping seat, the retreating hole and the abutting surface are sequentially distributed along the moving path of the limiting rod, one end of the positioning rod abuts against the abutting surface, and the other end of the positioning rod abuts against the second clamping seat.

In some embodiments, the terminal block protective device further includes a locking lever and a third elastic member; the locking rod is arranged on the lock body in a sliding mode, and the third elastic piece is clamped between the locking rod and the lock body; the limiting rod is provided with a positioning surface and a limiting surface;

the locking rod is switched between a locking position and an unlocking position, when the locking rod is located at the locking position, the locking rod abuts against the positioning surface, one end of the positioning rod abuts against the abutting surface, and the other end of the positioning rod abuts against the second clamp seat; when the locking rod is located at the unlocking position, the limiting surface, the position withdrawing hole and the abutting surface are sequentially arranged along the moving path of the locking rod and in the direction deviating from the locking rod, the locking rod is abutted against the limiting surface, the position withdrawing hole is located on the moving path of one end of the positioning rod in the direction deviating from the second holder, and the other end of the positioning rod is abutted against the second holder.

In some embodiments, the regulating rod further has a guide surface, the positioning surface is parallel to a sliding direction of the regulating rod, the positioning surface is perpendicular to the sliding direction of the regulating rod, the guide surface is provided obliquely, the guide surface is located between the positioning surface and the regulating surface, and the positioning surface and the regulating surface are connected by the guide surface.

In some embodiments, the terminal block protective device further includes an unlocking lever and a fourth elastic member; the utility model discloses a lock, including the unlocking lever, fourth elastic component centre gripping, locking lever, unlocking lever, first plane of extrusion, second plane of extrusion are in the unlocking lever slides and establishes on the lock body, the fourth elastic component centre gripping is in the unlocking lever with between the lock body, the locking lever has first plane of extrusion, the unlocking lever has second plane of extrusion, first plane of extrusion along the slip direction slope setting of locking lever, second plane of extrusion is located first plane of extrusion is along being close to on the removal route of the direction of restriction lever, first plane of extrusion with second plane of extrusion butt.

In some embodiments, the terminal block guard further comprises a drive lever rotatably mounted on the lock body; the driving rod is provided with a pushing block, and the rotating axes of the pushing block and the driving rod are sequentially distributed along the sliding path of the limiting rod;

the limiting rod is provided with a driving wall, the driving wall and the pushing block are sequentially distributed along the moving path of the limiting rod and deviate from the moving path, and the driving wall is abutted to the pushing block.

In some embodiments, the lock body is provided with a first hole channel, a second hole channel, a third hole channel, a fourth hole channel and a fifth hole channel; one end of the first pore passage is communicated with the outside of the lock body, the other end of the first pore passage is communicated with the second pore passage, one end of the third pore passage and one end of the fourth pore passage are both communicated with the second pore passage, the other end of the third pore passage is communicated with the fifth pore passage, the fifth pore passage is communicated with the outside of the lock body, and the other end of the fourth pore passage is communicated with the first sliding groove;

the one end of actuating lever is installed in the first pore, the other end of actuating lever is located in the second pore, the restriction lever slides and establishes in the second pore, the one end of locating lever is located the second pore, the other end of locating lever passes the fourth pore is stretched into in the first spout, the one end of check lock lever is installed in the third pore, the other end of check lock lever is located in the second pore, the one end of unblock lever is installed in the third pore, the other end of unblock lever passes the fifth pore is stretched the outside of lock body.

In some embodiments, the first hole channel, the second hole channel, the third hole channel, the fourth hole channel, and the fifth hole channel all extend along a straight line direction, the first hole channel, the third hole channel, and the fourth hole channel are parallel to each other and perpendicular to the second hole channel, the fifth hole channel is parallel to the second hole channel, a sliding direction of the limiting rod is the same as an extending direction of the second hole channel, a sliding direction of the positioning rod is the same as an extending direction of the fourth hole channel, a sliding direction of the locking rod is the same as an extending direction of the third hole channel, and a sliding direction of the unlocking rod is the same as an extending direction of the fifth hole channel.

In some embodiments, an anti-falling rod is arranged on the inner wall in the fifth hole, a limiting cap is arranged at one end of the unlocking rod, an anti-falling hole is formed in the other end of the unlocking rod and is arranged in the fifth hole in a sliding mode, the anti-falling hole is a strip-shaped hole and extends along the sliding direction of the unlocking rod, the anti-falling rod is inserted in the anti-falling hole, the limiting cap is located outside the lock body, and the fourth elastic piece is clamped between the limiting cap and the outer side face of the lock body.

In some embodiments, a limiting post is disposed on the lock body, a limiting groove is disposed on the second holder, the limiting groove extends along a sliding direction of the second holder, and the limiting post is slidably disposed in the limiting groove.

In some embodiments, the terminal block protection device further comprises a third clamping seat and a fifth elastic piece; the second clamping seat is provided with a second sliding groove communicated with the clamping groove, one end of the third clamping seat is slidably arranged in the second sliding groove, and the fifth elastic piece is positioned in the second sliding groove and clamped between the third clamping seat and the second sliding groove and the inner wall.

The utility model provides a technical scheme has following advantage and effect:

the utility model discloses a second holder can slide and make the size and the terminal adaptation in double-layered groove, and the installation is convenient with the dismantlement, and the maintenance of the terminal row of being convenient for do not need frequent change, reduce the cost. First holder and second holder are installed and are utilized lock body and shielding plate to cover on the terminal row after on the terminal row, realize keeping apart the protection to the terminal row, prevent that the terminal of terminal row from being bumped by the mistake, maloperation or maloperation.

Drawings

Fig. 1 is a schematic view of the mounting of the terminal block protective device.

FIG. 2 is a schematic structural view of the lock body, the first holder and the second holder;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view at A of FIG. 3;

FIG. 5 is a schematic structural view of the first holder, the second holder, the limiting rod, the positioning rod, the locking rod, and the unlocking rod;

figure 6 is a cross-sectional view of the lock body.

Description of reference numerals:

10. a lock body; 11. a first holder; 12. a second holder; 13. a clamping groove; 14. a restraining bar; 15. positioning a rod; 16. a first elastic member; 17. a second elastic member; 18. a shielding plate; 19. a first chute; 20. a locking lever; 21. a third elastic member; 22. an unlocking lever; 23. a fourth elastic member; 24. a drive rod; 25. a pushing block; 26. an anti-drop rod; 27. a limiting column; 28. a third holder; 29. a fifth elastic member; 30. a terminal block;

101. a first duct; 102. a second duct; 103. a third porthole; 104. a fourth porthole; 105. a fifth porthole;

120. a limiting groove; 121. a second chute;

141. a retreat hole; 142. an abutting surface; 143. positioning the surface; 144. a limiting surface; 145. a guide surface; 146. a drive wall;

201. a first pressing surface;

221. a second extrusion surface; 222. a limiting cap; 223. and (5) anti-drop holes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "communicating", "clamped" and "abutted" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Unless otherwise specified or defined, in the description of the present invention, it is to be understood that the terms "first", "second", and the like are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, the "first" information may also be referred to as "second" information, and similarly, the "second" information may also be referred to as "first" information, without departing from the scope of the invention.

As used herein, unless otherwise specified or defined, the term "and/or" includes any and all combinations of one or more of the associated listed items.

For convenience of description, unless otherwise noted, the up-down direction described below coincides with the up-down direction of fig. 3 itself, and the left-right direction described below coincides with the left-right direction of fig. 3 itself.

As shown in fig. 1 to 6, the terminal block protection device is used to be mounted on the terminals of the terminal block 30, and can cover the terminals of the terminals to prevent the terminals of the terminals from being touched, mismoved or misoperated by mistake.

The terminal block protection device includes a lock body 10, a first holder 11, a second holder 12, a limiting rod 14, a positioning rod 15, a first elastic member 16, a second elastic member 17, and a plurality of shielding plates 18. The first elastic member 16, the second elastic member 17 may be a spring, an elastic sheet, or the like, and a plurality of shielding plates 18 are provided to cover the terminal block 30. The first clamping seat 11 is connected with the lock body 10 and jointly encloses to form a first sliding groove 19, the first clamping seat 11 is installed on the lower end face of the lock body 10, and the upper end face of the first clamping seat 11 and the lower end face of the lock body 10 enclose to form the first sliding groove 19. The right end of the second holder 12 is slidably disposed in the first sliding slot 19, the first holder 11 and the second holder 12 together form a clamping slot 13, the size of the clamping slot 13 is changed by sliding the second holder 12, so that the first holder 11 and the second holder 12 together clamp one of the terminals of the terminal row 30, and the lock body 10 is mounted on one of the terminals through the first holder 11. The shielding plates 18 are connected in sequence, one end of the shielding plate 18 is connected with the lock body 10, and the shielding plates 18 are arranged in sequence along the lock body 10 to cover the rest terminals.

The limiting rod 14 and the positioning rod 15 are arranged on the lock body 10 in a sliding mode, the limiting rod 14 horizontally slides left and right, and the positioning rod 15 slides in the vertical direction. The positioning rod 15 is located between the limiting rod 14 and the second holder 12 and slides up and down between the limiting rod 14 and the second holder 12. The first elastic member 16 is clamped between the restricting lever 14 and the lock body 10, one end of the first elastic member 16 abuts against the lock body 10, the other end of the first elastic member 16 abuts against the left end of the restricting lever 14, and when the restricting lever 14 moves to the left, the first elastic member 16 is compressed and stores elastic potential energy. The second elastic member 17 is clamped between the positioning rod 15 and the lock body 10, the lower end of the second elastic member 17 abuts against a convex ring on the positioning rod 15, the upper end of the second elastic member 17 abuts against the lock body 10, and the second elastic member 17 is compressed and stores elastic potential energy when the positioning rod 15 moves upwards. The first elastic member 16 extends and retracts left and right, and the second elastic member 17 extends and retracts up and down.

The limiting rod 14 has a retreating hole 141 and an abutting surface 142, and both the retreating hole 141 and the abutting surface 142 are located on the lower end surface of the right end of the limiting rod 14. The retreating hole 141 extends along the moving path of the positioning rod 15 in a direction away from the second holder 12, the retreating hole 141 extends upward by a certain depth, and the positioning rod 15 is located below the retreating hole 141 or the contact surface 142. The retreating hole 141 and the abutment surface 142 are sequentially arranged along the moving path of the restricting lever 14, and the retreating hole 141 is located at the right side of the abutment surface 142. In an initial state, the first elastic element 16 is in a natural state, the upper end of the positioning rod 15 abuts against the abutting surface 142, the lower end of the positioning rod 15 abuts against the second holder 12, so that the second holder 12 cannot slide, the first holder 11 and the second holder 12 are fixed relatively, and the first holder 11 and the second holder 12 can be stably clamped on the terminal to realize locking. When the unlocking is needed, the limiting rod 14 is driven to move leftwards, the first elastic piece 16 is compressed and stores elastic potential energy, the retreating hole 141 moves to the upper portion of the upper end of the positioning rod 15, when external force is applied to drive the second clamping seat 12 to move, the second elastic piece 17 generates elastic deformation, the upper end of the positioning rod 15 enters the retreating hole 141, and the positioning rod 15 can shake up and down in the moving process of the second clamping seat 12, so that the second clamping seat 12 can move. The external force on the second holder 12 is removed, and the lower end of the positioning rod 15 is again abutted against the second holder 12 by the second elastic member 17. After the external force of the restraining rod 14 is removed, the restraining rod 14 moves to the right under the action of the first elastic member 16, the abutting surface 142 moves to the upper side of the upper end of the positioning rod 15, and the abutting surface 142 abuts against the upper end of the positioning rod 15 so that the lower end of the positioning rod 15 tightly abuts against the second holder 12, thereby preventing the second holder 12 from moving and locking the second holder 12.

In one embodiment, the terminal block protective device further includes a locking lever 20 and a third elastic member 21. The locking lever 20 is used to lock the limiting lever 14, and when the retreat hole 141 of the limiting lever 14 moves to a position right above the upper end of the positioning lever 15, the locking lever 20 is located at the right end of the limiting lever 14 and abuts against the limiting lever 14, preventing the limiting lever 14 from moving rightward under the action of the first elastic member 16. The locking rod 20 is slidably disposed on the lock body 10, the locking rod 20 slides up and down, and the third elastic member 21 extends and contracts up and down. The third elastic member 21 is clamped between the locking lever 20 and the lock body 10; the upper end of the third elastic member 21 abuts against the lock body 10, and the lower end of the third elastic member 21 is clamped in the groove of the lock lever 20 and abuts against the lock lever 20. The limiting rod 14 is provided with a positioning surface 143 and a limiting surface 144; the stopper surface 144 is a right end surface of the stopper rod 14, the positioning surface 143 is an upper end surface of the right end of the stopper rod 14, and the lock lever 20 slides up and down above the upper end surface of the right end of the stopper rod 14.

The lock lever 20 is switched between a locked position and an unlocked position. When the locking lever 20 is located at the locking position, the first elastic member 16 is in a natural state, the lower end of the locking lever 20 abuts against the positioning surface 143, the upper end of the positioning lever 15 abuts against the abutting surface 142, the lower end of the positioning lever 15 abuts against the second holder 12, and the first holder 11 and the second holder 12 are relatively and fixedly clamped on the terminal. When the locking lever 20 is located at the unlocking position, the limiting rod 14 moves leftwards to the left end of the locking lever 20, the limiting surface 144, the receding hole 141, and the abutting surface 142 are sequentially arranged along the moving path of the locking lever 20 and in the direction away from the locking lever 20, and the locking lever 20 abuts against the limiting surface 144 to prevent the limiting rod 14 from moving rightwards under the action of the first elastic member 16. The retreating hole 141 is located on a moving path of one end of the positioning rod 15 along a direction departing from the second holder 12, the retreating hole 141 is located right above the positioning rod 15, the lower end of the positioning rod 15 abuts against the second holder 12, and the second holder 12 can slide relative to the first holder 11.

In one embodiment, the limiting rod 14 further has a guiding surface 145, the plane of the withdrawing hole 141 and the abutting surface 142 are both parallel to the positioning surface 143, the positioning surface 143 is parallel to the sliding direction of the limiting rod 14, the positioning surface 143 is horizontally disposed, and the limiting surface 144 is vertically disposed. The positioning surface 143 is perpendicular to the sliding direction of the restricting rod 14, the guide surface 145 is provided obliquely, the guide surface 145 is located between the positioning surface 143 and the stopper surface 144, and the positioning surface 143 and the stopper surface 144 are in contact with each other by the guide surface 145. The left end of the guide surface 145 is in contact with the positioning surface 143, and the right end of the guide surface 145 extends upward to be in contact with the stopper surface 144.

In one embodiment, the terminal block protective device further includes an unlocking lever 22 and a fourth elastic member 23; the fourth elastic member 23 extends and contracts left and right. The lock release lever 22 is used to drive the lock lever 20 up and down away from the restricting lever 14. The unlocking rod 22 is slidably disposed on the lock body 10, and the unlocking rod 22 can slide left and right. The fourth elastic member 23 is clamped between the unlocking rod 22 and the lock body 10, the right end of the fourth elastic member 23 is connected with or abutted to the unlocking rod 22, and the left end of the fourth elastic member 23 is connected with or abutted to the lock body 10. The locking lever 20 has first squeeze face 201, the release lever 22 has second squeeze face 221, first squeeze face 201 along the slip direction slope of locking lever 20 sets up, second squeeze face 221 along the slip direction slope of release lever 22 sets up, and first squeeze face 201 and second squeeze face 221 all turn right side up slope from a left side. The second pressing surface 221 is located on a moving path of the first pressing surface 201 in a direction of approaching the regulating rod 14, and the first pressing surface 201 and the second pressing surface 221 abut. When the lock release lever 22 slides leftward, the lock release lever 22 is pushed to slide upward, so that the lower end of the lock release lever 22 is separated from the positioning surface 143 or the limiting surface 144, and the limiting lever 14 can move leftward and rightward.

In one embodiment, the terminal block protection device further includes a drive lever 24 rotatably mounted to the lock body 10; the driving rod 24 is provided with a pushing block 25, and the rotating axes of the pushing block 25 and the driving rod 24 are sequentially arranged along the sliding path of the limiting rod 14. The pushing block 25 is eccentrically disposed on the driving rod 24, and the pushing block 25 is located on the lower end surface of the driving rod 24 and is integrally formed with the driving rod 24.

The limiting rod 14 is provided with a driving wall 146, the driving wall 146 is positioned at the left side of the pushing block 25, the driving wall 146 and the pushing block 25 are sequentially distributed along the moving path of the limiting rod 14 and away from each other, and the driving wall 146 is abutted to the pushing block 25. Leftward sliding of the restricting lever 14 is achieved by rotating the drive lever 24 so that the pusher block 25 presses against the drive wall 146.

In one embodiment, the lock body 10 is provided with a first bore 101, a second bore 102, a third bore 103, a fourth bore 104, and a fifth bore 105. The upper end of the first hole channel 101 communicates with the outside of the lock body 10, the lower end of the first hole channel 101 communicates with the second hole channel 102, one end of the third hole channel 103 and one end of the fourth hole channel 104 both communicate with the second hole channel 102, the other end of the third hole channel 103 communicates with the fifth hole channel 105, the fifth hole channel 105 communicates with the outside of the lock body 10, the other end of the fourth hole channel 104 communicates with the first sliding groove 19. The first elastic member 16 is held between the restricting lever 14 and the inner wall of the second bore 102, the second elastic member 17 is held between the positioning lever 15 and the shoulder of the fourth bore 104, and the third elastic member 21 is held between the lock lever 20 and the inner wall of the third bore 103. The fourth elastic member 23 is sandwiched between the lock release lever 22 and the shoulder of the fifth orifice 105.

One end of the driving rod 24 is installed in the first hole 101, the other end of the driving rod 24 is located in the second hole 102, and the driving rod 24 rotates in the first hole 101 and the second hole 102. The restraining bar 14 is slidably disposed within the second aperture 102. One end of the positioning rod 15 is located in the second hole 102, and the other end of the positioning rod 15 passes through the fourth hole 104 and extends into the first sliding groove 19. One end of the locking rod 20 is installed in the third bore 103, the other end of the locking rod 20 is located in the second bore 102, and the lower end of the locking rod 20 moves between the third bore 103 and the second bore 102. One end of the release lever 22 is installed in the third bore 103, and the other end of the release lever 22 extends to the outside of the lock body 10 through the fifth bore 105.

In one embodiment, the first hole channel 101, the second hole channel 102, the third hole channel 103, the fourth hole channel 104 and the fifth hole channel 105 all extend along a straight line, the first hole channel 101, the third hole channel 103 and the fourth hole channel 104 are parallel to each other and all perpendicular to the second hole channel 102, the first hole channel 101, the third hole channel 103 and the fourth hole channel 104 all extend vertically, and the second hole channel 102 extends vertically and horizontally. Fifth porthole 105 with second porthole 102 is parallel, the slip direction of restriction lever 14 with the extending direction of second porthole 102 is the same, the slip direction of locating lever 15 with the extending direction of fourth porthole 104 is the same, the slip direction of lock lever 20 with the extending direction of third porthole 103 is the same, the slip direction of unblock lever 22 with the extending direction of fifth porthole 105 is the same.

In one embodiment, an anti-disengaging rod 26 is disposed on an inner wall of the fifth hole passage 105, a limiting cap 222 is disposed at one end of the unlocking rod 22, an anti-disengaging hole 223 is disposed at the other end of the unlocking rod 22 and slidably disposed in the fifth hole passage 105, the anti-disengaging hole 223 is a strip-shaped hole and extends along a sliding direction of the unlocking rod 22, the anti-disengaging rod 26 is inserted into the anti-disengaging hole 223, the limiting cap 222 is located outside the lock body 10, and the fourth elastic member 23 is clamped between the limiting cap 222 and an outer side surface of the lock body 10. The escape prevention lever 26 prevents the release lever 22 from escaping from the fifth orifice 105.

In one embodiment, the lock body 10 is provided with a position-limiting post 27, the second holder 12 is provided with a position-limiting groove 120, the position-limiting groove 120 extends along the sliding direction of the second holder 12, and the position-limiting post 27 is slidably disposed in the position-limiting groove 120 to prevent the second holder 12 from being separated from the first holder 11 when sliding.

In one embodiment, the terminal block protection device further comprises a third cartridge 28 and a fifth elastic member 29; the second clamping seat 12 is provided with a second sliding groove 121 communicated with the clamping groove 13, and a notch of the second sliding groove 121 is located in the clamping groove 13. One end of the third holder 28 passes through the notch of the second sliding groove 121 and is slidably arranged in the second sliding groove 121, the other end of the third holder 28 slides between the second sliding groove 121 and the clamping groove 13, the fifth elastic member 29 is located in the second sliding groove 121 and is clamped between the third holder 28 and the second sliding groove 121 and the inner wall, when the first holder 11 and the second holder 12 are sleeved on the terminal row 30, the third holder 28 is abutted against the side surface of the terminal under the action of the fifth elastic member 29, so that the third holder 28 and the first holder 11 complete the preliminary clamping of the terminal, and then the position of the second holder 12 is adjusted to realize the stable clamping of the first holder 11 and the second holder 12 on the terminal.

The working principle of the embodiment is as follows:

when the terminal block protection device is installed: the drive lever 24 is rotated so that the restriction lever 14 moves leftward, the retreat hole 141 is positioned directly above the positioning lever 15, and the lock lever is positioned at the right end of the restriction lever 14 and restricts the restriction lever 14 from moving rightward. Sliding the second holder 12 causes the second holder 12 and the first holder 11 to be clamped together on one of the terminals of the terminal block 30, then the driving rod 24 is rotationally reset, the locking rod is driven to move upwards by pressing the unlocking rod 22, the limiting rod 14 moves rightwards under the action of the first elastic piece 16, the abutting surface 142 abuts on the positioning rod 15, and the lower end of the positioning rod 15 locks the second holder 12. Finally, the shielding plate 18 is sequentially connected to the lock body 10 to cover the other terminals of the terminal block 30.

When the terminal block protection device is disassembled: the driving rod 24 is rotated to move the limiting rod 14 leftwards, the withdrawing hole 141 is located right above the positioning rod 15, the second holder 12 is slid to enable the second holder 12 and the first holder 11 to loose the terminal, then the second holder 12, the first holder 11, the lock body 10 and the shielding plate 18 are taken down together, and finally the shielding plate 18 is taken down from the lock body 10 and separated one by one.

The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. The terminal block protection device is characterized by comprising a lock body, a first clamping seat, a second clamping seat, a limiting rod, a positioning rod, a first elastic piece, a second elastic piece and a plurality of shielding plates; the first clamping seat and the lock body are connected and jointly enclosed to form a first sliding groove, one end of the second clamping seat is slidably arranged in the first sliding groove, the first clamping seat and the second clamping seat jointly form a clamping groove, the shielding plates are sequentially connected, and the shielding plate at one end of the shielding plates is connected with the lock body;

2. The terminal block protection device according to claim 1, further comprising a locking lever and a third elastic member; the locking rod is arranged on the lock body in a sliding mode, and the third elastic piece is clamped between the locking rod and the lock body; the limiting rod is provided with a positioning surface and a limiting surface;

3. A terminal block protective device according to claim 2, wherein the regulating rod further has a guide surface, the positioning surface is parallel to a sliding direction of the regulating rod, the positioning surface is perpendicular to the sliding direction of the regulating rod, the guide surface is provided obliquely, the guide surface is located between the positioning surface and the stopper surface, and the positioning surface and the stopper surface are connected by the guide surface.

4. The terminal block protection device according to claim 3, further comprising an unlocking lever and a fourth elastic member; the utility model discloses a lock, including the unlocking lever, fourth elastic component centre gripping, locking lever, unlocking lever, first plane of extrusion, second plane of extrusion are in the unlocking lever slides and establishes on the lock body, the fourth elastic component centre gripping is in the unlocking lever with between the lock body, the locking lever has first plane of extrusion, the unlocking lever has second plane of extrusion, first plane of extrusion along the slip direction slope setting of locking lever, second plane of extrusion is located first plane of extrusion is along being close to on the removal route of the direction of restriction lever, first plane of extrusion with second plane of extrusion butt.

5. The terminal block protection device of claim 4, further comprising a drive lever rotatably mounted to the lock body; the driving rod is provided with a pushing block, and the rotating axes of the pushing block and the driving rod are sequentially distributed along the sliding path of the limiting rod;

6. The terminal block protection device according to claim 5, wherein the lock body is provided with a first duct, a second duct, a third duct, a fourth duct, a fifth duct; one end of the first pore passage is communicated with the outside of the lock body, the other end of the first pore passage is communicated with the second pore passage, one end of the third pore passage and one end of the fourth pore passage are both communicated with the second pore passage, the other end of the third pore passage is communicated with the fifth pore passage, the fifth pore passage is communicated with the outside of the lock body, and the other end of the fourth pore passage is communicated with the first sliding groove;

7. The terminal block protection device according to claim 6, wherein the first hole, the second hole, the third hole, the fourth hole, and the fifth hole all extend in a straight line direction, the first hole, the third hole, and the fourth hole are parallel to each other and perpendicular to the second hole, the fifth hole is parallel to the second hole, a sliding direction of the restriction lever is the same as an extending direction of the second hole, a sliding direction of the positioning lever is the same as an extending direction of the fourth hole, a sliding direction of the locking lever is the same as an extending direction of the third hole, and a sliding direction of the unlocking lever is the same as an extending direction of the fifth hole.

8. The terminal block protection device according to claim 6, wherein an anti-separation rod is arranged on an inner wall of the fifth hole, one end of the unlocking rod is provided with a limiting cap, the other end of the unlocking rod is provided with an anti-separation hole and is arranged in the fifth hole in a sliding manner, the anti-separation hole is a strip-shaped hole and extends along the sliding direction of the unlocking rod, the anti-separation rod is inserted into the anti-separation hole, the limiting cap is located outside the lock body, and the fourth elastic member is clamped between the limiting cap and the outer side face of the lock body.

9. The terminal block protection device according to any one of claims 6 to 8, wherein a limiting post is disposed on the lock body, a limiting groove is disposed on the second holder, the limiting groove extends along a sliding direction of the second holder, and the limiting post is slidably disposed in the limiting groove.

10. The terminal block protection device according to any one of claims 1 to 8, further comprising a third holder and a fifth elastic member; the second clamping seat is provided with a second sliding groove communicated with the clamping groove, one end of the third clamping seat is slidably arranged in the second sliding groove, and the fifth elastic piece is positioned in the second sliding groove and clamped between the third clamping seat and the second sliding groove and the inner wall.