CN219759987U - Clamping rail type contact net grounding device - Google Patents

Abstract

The utility model relates to the technical field of locks, in particular to a clamping rail type contact net grounding device. A clamping rail type contact net grounding device comprises a locking assembly, a mounting base assembly and a locking assembly; the installation base assembly comprises a fixed base, a grounding pile used for connecting a ground wire is arranged on the upper end face of the fixed base, the locking assembly is installed on the fixed base, the locking assembly can move left and right and is detachably installed on the fixed base, and the locking assembly is used for clamping a rail on the fixed base. The clamping rail type contact net grounding device is small in resistance in contact with the rail, the locking rod can be automatically ejected during unlocking, the grounding wire is convenient to hang, operation is convenient, operation efficiency is effectively improved, the rail with various models can be adapted, the problems that the contact resistance of the conventional contact net grounding device and the rail is overlarge, and the operation of disassembling and assembling the grounding wire is time-consuming and labor-consuming and the operation efficiency is influenced due to the fact that the locking mechanism cannot be automatically ejected during unlocking are solved.

Description

Clamping rail type contact net grounding device

Technical Field

The utility model relates to the technical field of locks, in particular to a clamping rail type contact net grounding device.

Background

In a rail transit electrified traction system, a contact line installed above a railway is a transmission line for supplying electric power to an electric locomotive of a train. The rail of the train running track is a line for supplying electric energy to the locomotive from the contact net by current and then returning the electric energy to the power supply system. The voltages on the contact line and the carrier cable have different voltage values according to different train types, and for example, a subway train power supply system adopts 1.5kV direct current power supply, and a high-speed railway train power supply system adopts 50Hz alternating current power supply of up to 25 kV. Such high voltages, even though the residual voltage may be several hundred volts, are fatal to the human body.

Before the train power supply system and the overhead contact system overhauling operation are carried out, the five-prevention requirements can effectively avoid the harm of high voltage to staff or equipment. In the past years, serious accidents are repeatedly caused by human errors and misoperation of switching off in a power system, and particularly, the misoperation of on-line ground wire hanging and on-line ground wire disconnecting link is aimed. If the ground wire is not arranged at the correct position, the protection of personnel and equipment is not realized; meanwhile, if the ground wire is not removed in time after the operation is completed, a serious accident of the on-switch with the ground wire is caused, so that the prevention of the occurrence of misoperation of on-line ground wire hanging and on-switch with the ground wire is one of keys of maintenance safety operation.

In the urban rail transit industry, the common grounding method is that an operator carries a portable temporary grounding wire to perform field manual operation grounding, and the grounding method mainly depends on a management system to ensure that the grounding wire is not hung in a live state and the disconnecting link is closed with the grounding wire, so that human errors cannot be avoided, and the accident probability is high. By adopting the rail transit contact net grounding device adopting the five-prevention locking technology, the fault of live-line ground wire hanging and ground wire closing caused by misoperation of operators can be effectively avoided through the technical means. However, the existing grounding device still has the following drawbacks:

1. the contact resistance of the device and the steel rail is overlarge, or the resistance of the ground wire connection part is overlarge, or the resistance of the device body is overlarge, so that the requirement of dynamic acceptance of the contact network artificial short circuit test cannot be met, and the requirement of effectively protecting the safety of human bodies and equipment cannot be met.

2. The locking mechanism can not be automatically popped up during unlocking, so that the operation of disassembling and assembling the ground wire is time-consuming and labor-consuming, and the operation efficiency is affected.

3. The grounding device cannot be adapted to multiple types of rails, and each rail requires a specific grounding device, resulting in high design and production costs of the device.

Disclosure of Invention

Aiming at the problems of the prior art, the utility model aims to provide the clamping rail type contact net grounding device which has small resistance in contact with the rail, can automatically pop up a lock rod during unlocking, is convenient for hanging a grounding wire, is convenient to operate, effectively improves the working efficiency, can adapt to rails of various types, and solves the problems that the prior contact net grounding device and the rail have overlarge contact resistance, and the locking mechanism cannot be automatically popped up during unlocking, so that the operation of disassembling the grounding wire is time-consuming and labor-consuming, and the working efficiency is affected.

To achieve the purpose, the utility model adopts the following technical scheme:

a clamping rail type contact net grounding device comprises a locking assembly, a mounting base assembly and a locking assembly;

the installation base assembly comprises a fixed base, the upper end face of the fixed base is provided with a grounding pile for connecting a ground wire, the locking assembly is installed on the fixed base, the locking assembly can move left and right and is detachably installed on the fixed base, the locking assembly is used for clamping a rail on the fixed base, and the lower end face of the rail is attached to the upper end face of the fixed base;

the locking assembly comprises a lock body, an unlocking knob, a lock tongue, a first elastic piece, a lock rod and a second elastic piece, wherein the lock body is provided with an insertion hole, a lock groove and a lock hole, the insertion hole is communicated with one end of the lock groove, the other end of the lock groove is communicated with the lock hole, the lock groove is arranged in the front-back direction, the lock hole penetrates through the lock body in the left-right direction, the unlocking knob is rotationally arranged in the insertion hole, the lock tongue is movably arranged in the lock groove in the front-back direction, and the lock rod is movably arranged in the lock hole in the left-right direction;

the unlocking knob is abutted with one end, far away from the lock rod, of the lock rod, a locking opening is formed in one side, facing the lock rod, of the lock rod, the lock rod is inserted into the locking opening, the unlocking knob rotates to drive the lock rod to be separated from the locking opening, one end of the first elastic piece is connected with the lock rod, and the other end of the first elastic piece is connected with the locking groove; one end of the second elastic piece is connected with the lock rod, and the other end of the second elastic piece is connected with the lock hole;

the end part of the lock rod is positioned above the grounding pile to limit the taking and placing of the ground wire on the grounding pile.

Further stated, the bottom of the said unlocking knob has a deflector rod, one side of the said lock tongue close to the said unlocking knob has a deflector groove, the said deflector rod is abutted with back end face of the said deflector groove;

the inner wall of the locking groove is provided with a first step surface, the first elastic piece is sleeved on the lock tongue, one side of the lock tongue, which is close to the lock rod, is provided with a first limiting boss, one end of the first elastic piece is abutted to the first limiting boss, and the other end of the first elastic piece is abutted to the first step surface.

Further stated, the locking assembly further includes a first stop pin and a second stop pin;

the lock body is provided with a first mounting hole and a second mounting hole which are communicated with the jack on one side of the jack, the first limit pin is inserted into the first mounting hole, and the end part of the first limit pin is abutted against the upper end surface of the unlocking knob;

the second limiting pin is inserted in the second mounting hole, the unlocking knob is provided with a limiting ring groove which is sunken towards the thickness direction of the unlocking knob, the end part of the second limiting pin is inserted in the limiting ring groove, and the outer wall of the second pin abuts against the upper end face and the lower end face of the limiting ring groove.

The locking assembly further comprises a lock rod sleeve, the lock rod sleeve penetrates through the lock hole, an installation through hole is formed in the lock rod sleeve in a penetrating mode along the length direction of the lock rod sleeve, the lock rod penetrates through the installation through hole in a left-right moving mode, and the end portion of the lock rod protrudes out of the lock rod sleeve;

the inner wall of the installation through hole is provided with a second step surface, the second elastic piece is sleeved on the lock rod, a second limiting boss is arranged on one side, away from the grounding pile, of the lock rod, one end of the second elastic piece is abutted to the second limiting boss, and the other end of the second elastic piece is abutted to the second step surface.

Further described, the locking assembly further includes a third stop pin;

the lock body is provided with a third mounting hole below the lock hole, the lock body is provided with a fourth mounting hole above the lock hole, and the third mounting hole and the fourth mounting hole are respectively communicated with the lock hole;

the lock rod is provided with a travel limit groove along the left-right direction, the travel limit groove is positioned in the lock hole, the lock rod sleeve is provided with a through hole along the vertical direction, and the third limit pin penetrates through the third mounting hole, the travel limit groove and the through hole and then is inserted into the fourth mounting hole.

Further stated, the locking assembly further includes a spacing plug and a dust cover;

the lock body is provided with a fifth mounting hole, the fifth mounting hole is communicated with the lock hole, a limiting hole is formed in the position, corresponding to the fifth mounting hole, of the lock rod sleeve, and the limiting plug penetrates through the fifth mounting hole and then is inserted into the limiting hole;

the dust cover is arranged on the lock body.

Still further stated, the mounting base assembly further comprises a first insulating pad and a conductive adhesive plate, the first insulating pad is detachably mounted at the bottom of the fixing base, a first mounting groove is formed in the upper end face of the fixing base, and the conductive adhesive plate is mounted in the first mounting groove.

Further described, the locking assembly includes a locking block, a second insulating pad, a butterfly spring pad, and a first fastener;

the locking block can move left and right and is detachably arranged on the fixed base, the second insulating pad is detachably arranged at the bottom of the locking block, a bolt is arranged on the top surface of the locking block, the butterfly elastic pad is inserted into the bolt, the first fastening piece is in threaded connection with the bolt, and the first fastening piece is used for fastening the butterfly elastic pad to the locking block in a pressing mode;

the utility model discloses a track, including the earth pile, the up end of unable adjustment base is close to one side of earth pile is equipped with the installation piece, the locking subassembly install in the up end of installation piece, one side of installation piece that is close to the locking subassembly is equipped with the limiting plate, the rail chucking in the locking piece with between the installation piece, the lower terminal surface of butterfly bullet pad compresses tightly the surface of rail, the limiting plate is located the top of rail.

Further stated, the said locking assembly also includes the second fastener, one side close to said locking block of the said fixed base has offered the second mounting groove, and one side close to said locking block of the said fixed base has threaded spindle, the said threaded spindle is set up along the left-right direction;

one side of the locking block, which is close to the fixed base, is provided with a mounting boss, the mounting boss is inserted into the second mounting groove, a sixth mounting hole is formed in the locking block in a penetrating mode in the left-right direction, and the screw rod penetrates through the sixth mounting hole and then is in threaded connection with the second fastening piece.

Still further stated, the ground stake includes double-screw bolt and butterfly nut, the double-screw bolt set up in unable adjustment base's up end, butterfly nut with double-screw bolt screw thread cooperation, the tip of locking lever is located the top of butterfly nut is in order to restrict butterfly nut is followed the double-screw bolt breaks away from.

Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

1. through setting up locking component to and set up unable adjustment base at installation base subassembly, locking component is with the rail chucking in unable adjustment base after, because the lower terminal surface of rail is laminated mutually with unable adjustment base's up end, makes the contact surface of unable adjustment base and rail increase, and the contact surface is bigger in the unit area, and the resistance is less more, connects ground wire copper nose on the ground connection stake, and the rail passes through unable adjustment base and ground wire and is connected with the contact net, with conduction current, realizes the ground connection of contact net.

2. The locking component can move left and right and is detachably connected to the fixed base, the position of the locking component for locking the rail can be adjusted according to the type of the rail, the installation is convenient, and the rail with multiple types can be adapted.

3. Through setting up unlocking knob, spring bolt, first elastic component, locking lever and second elastic component, can the automatic pop-up locking lever when the unblock, press the locking lever and can realize the spacing of spring bolt to the locking lever when the shutting, make the locking lever resume to the normal position, be convenient for hang the earth connection, convenient operation effectively improves operating efficiency.

Drawings

Fig. 1 is a schematic perspective view of a grounding device of a clip rail type contact net according to an embodiment of the present utility model;

fig. 2 is a schematic front view of a grounding device of a clip-on rail type contact net according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an exploded view of a latching assembly of a clip-on rail catenary grounding apparatus according to one embodiment of the present utility model;

FIG. 4 is an elevation view of a lock body of a locking assembly of a clip rail catenary grounding apparatus of one embodiment of the present utility model;

FIG. 5 is a cross-sectional view of section A-A of FIG. 4;

FIG. 6 is a top view (with dust caps removed) of a latch assembly of a clip rail catenary grounding apparatus of one embodiment of the present utility model;

FIG. 7 is a cross-sectional view of section B-B of FIG. 6;

FIG. 8 is an elevation view (with dust caps removed) of a latch assembly of a clip-on catenary grounding device according to one embodiment of the present utility model;

FIG. 9 is a cross-sectional view of section C-C of FIG. 8;

FIG. 10 is a schematic view of an exploded view of a mounting base assembly of a clip rail overhead contact system grounding apparatus according to one embodiment of the present utility model;

FIG. 11 is a schematic view of an exploded view of a locking assembly of a clip rail catenary grounding apparatus according to one embodiment of the present utility model;

fig. 12 is a schematic view of a mating installation structure of a locking assembly and an installation base assembly of a clip rail type contact net grounding device according to an embodiment of the present utility model;

wherein: the lock assembly 1, the lock body 11, the insertion hole 111, the lock groove 112, the first step surface 1121, the lock hole 113, the first mounting hole 114, the second mounting hole 115, the fifth mounting hole 116, the unlocking knob 12, the deflector rod 121, the limit ring groove 122, the lock tongue 13, the deflector groove 131, the first limit boss 132, the first elastic member 14, the lock rod 15, the lock opening 151, the second limit boss 152, the travel limit groove 153, the second elastic member 16, the first limit pin 17, the second limit pin 18, the lock rod sleeve 19, the mounting through hole 191, the second step surface 192, the through hole 193, the limit hole 194, the third limit pin 10, the limit plug 101, the dust cover 102, the mounting base assembly 2, the fixing base 21, the ground stud 211, the stud 2111, the butterfly nut 2112, the first mounting groove 212, the mounting block 213, the limit plate 214, the second mounting groove 215, the screw rod 216, the first insulating pad 22, the conductive adhesive plate 23, the locking assembly 3, the locking block 31, the bolt 311, the mounting boss 312, the sixth mounting hole 313, the second insulating pad 32, the second insulating pad 33, the butterfly spring clip 33, the first rail clip 33, the butterfly fastener 35, the ground wire 5, and the ground wire fastener 5.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more.

As shown in fig. 1 to 12, a clamping rail type contact net grounding device comprises a locking assembly 1, a mounting base assembly 2 and a locking assembly 3;

the installation base assembly 2 comprises a fixed base 21, a grounding pile 211 for connecting a ground wire is arranged on the upper end face of the fixed base 21, the locking assembly 1 is installed on the fixed base 21, the locking assembly 3 can move left and right and is detachably installed on the fixed base 21, the locking assembly 3 is used for clamping a rail 4 on the fixed base 21, and the lower end face of the rail 4 is attached to the upper end face of the fixed base 21;

the locking assembly 1 comprises a lock body 11, an unlocking knob 12, a lock tongue 13, a first elastic piece 14, a lock rod 15 and a second elastic piece 16, wherein the lock body 11 is provided with an insertion hole 111, a lock groove 112 and a lock hole 113, the insertion hole 111 is communicated with one end of the lock groove 112, the other end of the lock groove 112 is communicated with the lock hole 113, the lock groove 112 is arranged along the front-back direction, the lock hole 113 penetrates through the lock body 11 along the left-right direction, the unlocking knob 12 is rotatably arranged in the insertion hole 111, the lock tongue 13 is movably arranged in the lock groove 112 in the front-back direction, and the lock rod 14 is movably arranged in the lock hole 113 in the left-right direction;

the unlocking knob 12 is abutted with one end of the lock tongue 13 far away from the lock rod 15, a locking notch 151 is formed in one side of the lock rod 15 facing the lock tongue 13, the lock tongue 13 is inserted into the locking notch 151, the unlocking knob 12 rotates to drive the lock tongue 13 to be separated from the locking notch 151, one end of the first elastic piece 14 is connected with the lock tongue 13, and the other end of the first elastic piece 14 is connected with the locking groove 112; one end of the second elastic member 16 is connected with the lock lever 15, and the other end of the second elastic member 16 is connected with the lock hole 113;

the end of the lock lever 15 is located above the grounding post 211 to limit the taking and placing of the ground wire on the grounding post 211.

Through setting up locking subassembly 3, and installation base subassembly 2 sets up unable adjustment base 21, locking subassembly 3 will rail 4 chucking in behind the unable adjustment base 21, because rail 4's lower terminal surface with unable adjustment base 21's up end is laminated mutually for unable adjustment base 21 with rail 4's contact surface increases, and the contact surface is bigger in the unit area, thereby the resistance is littleer connect ground wire copper nose 5 on the ground stake 211, rail 4 passes through unable adjustment base 21 and ground wire are connected with the contact net, in order to conduction current, realize the ground connection of contact net. The locking component 3 can move left and right and is detachably connected to the fixing base 21, the position of the locking component 3 for locking the rail 4 can be adjusted according to the type of the rail 4, the adjustment and the installation are convenient, and the rail 4 with multiple types can be adapted. In addition, by setting the unlocking knob 12, the lock tongue 13, the first elastic member 14, the lock rod 15 and the second elastic member 16, the lock rod 15 can be automatically ejected when unlocking, and the lock rod 15 can be pressed when locking, so that the lock tongue 13 can limit the lock rod 15, the lock rod 15 can be restored to the original position, and the unlocking and locking principle of the locking assembly 1 is as follows:

when unlocking is needed, an unlocking key is inserted into the insertion hole 111 to unlock the unlocking knob 12, so that the unlocking knob 12 rotates, the unlocking knob 12 rotates to drive the lock tongue 13 to move backwards, the lock tongue 13 is separated from the locking opening 151, the first elastic piece 14 is compressed while the lock tongue 13 moves backwards, the second elastic piece 16 is in a compressed state when the lock tongue 13 is originally locked, after the lock tongue 13 is separated from the locking opening 151, the lock rod 15 can automatically pop out rightwards under the action of the elastic force of the second elastic piece 16, unlocking is achieved, operation is convenient, working efficiency is effectively improved, when unlocking is performed, after the lock rod 15 automatically pops rightwards for a certain distance, the end part of the lock rod 15 is not above the grounding pile 211, the taking out of the ground wire copper nose 5 cannot be limited, and at the moment, the ground wire copper nose 5 can be taken out of the grounding pile 211 (the ground wire is removed).

When locking is needed, the locking rod 15 is pressed leftwards, so that the locking rod 15 is restored to the original position, the second elastic piece 16 is compressed, at the moment, the locking bolt 13 automatically pops forwards under the elastic action of the first elastic piece 14, the locking bolt 13 is inserted into the locking notch 151, the locking bolt 13 is locked with the locking rod 15 again, the locking rod 15 moves leftwards, and is restored to the original position, the operation is convenient, the end part of the locking rod 15 is positioned above the grounding pile 211, and the ground wire copper nose 5 (mounting ground wire) on the grounding pile 211 cannot be taken out under the limiting action of the locking rod 15.

The clamping rail type contact net grounding device is small in resistance in contact with the rail 4, the locking rod 15 can be automatically ejected during unlocking, the ground wire is convenient to hang, the operation is convenient, the operation efficiency is effectively improved, the rail 4 with various models can be adapted, the problems that the conventional contact net grounding device and the rail contact resistance are overlarge, and the locking mechanism cannot be automatically ejected during unlocking, so that the operation of disassembling and assembling the ground wire is time-consuming and labor-consuming, and the operation efficiency is influenced are solved.

Specifically, the first elastic member 14 and the second elastic member 16 are both springs, which is convenient for installation.

Further describing, the bottom of the unlocking knob 12 is provided with a deflector rod 121, one side of the lock tongue 13 close to the unlocking knob 12 is provided with a deflector groove 131, and the deflector rod 121 is abutted against the rear end surface of the deflector groove 131;

the inner wall of the locking groove 112 is provided with a first step surface 1121, the first elastic member 14 is sleeved on the locking tongue 13, one side of the locking tongue 13, which is close to the locking rod 15, is provided with a first limit boss 132, one end of the first elastic member 14 is abutted to the first limit boss 132, and the other end of the first elastic member 14 is abutted to the first step surface 1121.

Through setting up the driving lever 121, driving lever 121 with the rear end face butt of dialling groove 131, when using the unblock key to insert jack 111 to unblock unlocking knob 12 operation makes unlocking knob 12 rotates, driving lever 121 through with the rear end face butt of dialling groove 131 drives spring bolt 13 moves backward, specifically, the cross-section of driving lever 121 is semi-circular for driving lever 121 with the butt stability of dialling groove 131 is good.

By arranging the first step surface 1121 and arranging the first limiting boss 132 on the lock tongue 13, the first elastic member 14 can be limited and installed, when the lock tongue 13 moves backwards during unlocking, the first limiting boss 132 compresses the first elastic member 14, and when locking is needed, the lock tongue 13 can automatically spring forwards under the action of the elastic force of the first elastic member 14, so that the lock tongue 13 and the lock rod 15 are locked again.

Further illustration, the locking assembly 1 further comprises a first limit pin 17 and a second limit pin 18;

a first mounting hole 114 and a second mounting hole 115 which are communicated with the jack 111 are formed in one side of the jack 111 of the lock body 11, the first limit pin 17 is inserted into the first mounting hole 114, and the end part of the first limit pin 17 is abutted against the upper end surface of the unlocking knob 12;

the second limit pin 18 is inserted into the second mounting hole 115, the unlocking knob 12 is provided with a limit ring groove 122 recessed toward the thickness direction of the unlocking knob, the end of the second limit pin 18 is inserted into the limit ring groove 122, and the outer wall of the second pin 18 abuts against the upper end face and the lower end face of the limit ring groove 122.

Through setting up first spacing pin 17 can avoid adopting ordinary nipper pincers can unscrew unlocking knob 12, when adopting the unlocking of standard five-prevention unlocking key, have on the unlocking key and avoid first spacing pin 17 dodge the space, guarantee the security of unblock. By providing the second limit pin 18, the outer wall of the second pin 18 abuts against the upper end surface and the lower end surface of the limit ring groove 122, so that the movement of the unlocking knob 12 in the up-down direction can be limited, but the circumferential rotation movement of the unlocking knob 12 is not limited, and the fixing of the position of the unlocking knob 12 is realized.

Further, the locking assembly 1 further includes a locking bar sleeve 19, the locking bar sleeve 19 is inserted into the locking hole 113, an installation through hole 191 is formed in the locking bar sleeve 19 along the length direction of the locking bar sleeve, the locking bar 15 is inserted into the installation through hole 191 in a manner of moving left and right, and the end portion of the locking bar 15 protrudes out of the locking bar sleeve 19;

the inner wall of the mounting through hole 191 is provided with a second step surface 192, the second elastic member 16 is sleeved on the lock lever 15, a second limit boss 152 is provided on one side of the lock lever 15 away from the grounding pile 211, one end of the second elastic member 16 abuts against the second limit boss 152, and the other end of the second elastic member 16 abuts against the second step surface 192.

The lock rod sleeve 19 is arranged to realize the installation of the lock rod 15, the second elastic piece 16 and the lock hole 113, the second step surface 192 is arranged, the second limiting boss 152 is arranged on the lock rod 15 to realize the limiting installation of the second elastic piece 16, the second elastic piece 16 is positioned between the second step surface 192 and the second limiting boss 152 when being locked, after the lock tongue 13 is separated from the locking opening 151, the lock rod 15 can automatically pop up rightwards under the elastic action of the second elastic piece 16 to realize unlocking, the lock rod 15 is pressed leftwards, the second elastic piece 16 is compressed by the second limiting boss 152, so that the second elastic piece 16 stores elastic potential energy again, and the lock rod 15 can be automatically popped up when the next unlocking is realized.

Further, the locking assembly 1 further comprises a third limit pin 10;

a third mounting hole is formed below the lock hole 113 in the lock body 11, a fourth mounting hole is formed above the lock hole 113 in the lock body 11, and the third mounting hole and the fourth mounting hole are respectively communicated with the lock hole 113;

the lock lever 15 is provided with a travel limit groove 153 along the left-right direction, the travel limit groove 153 is located in the lock hole 113, the lock lever sleeve 19 is provided with a through hole 193 along the vertical direction, and the third limit pin 10 is inserted into the fourth mounting hole after passing through the third mounting hole, the travel limit groove 153 and the through hole 193.

By arranging the third limiting pin 10, the lock rod sleeve 19 and the lock rod 15 can be fixedly limited to the lock body 11, and the movement stroke of the lock rod 15 can be limited, when the lock rod 15 is unlocked, the lock rod 15 automatically pops right, the third limiting pin 10 props against the left end face of the stroke limiting groove 153, so that the lock rod 15 stops moving after popping up a certain distance, and the function of limiting the movement stroke of the lock rod 15 is achieved. It should be noted that, the lock rod sleeve 19 is provided with two through holes 193 along the vertical direction, and the third limit pin 10 sequentially passes through the third mounting hole, the through hole 193 located below, the travel limit groove 153, and the through hole 193 located above and then is inserted into the fourth mounting hole.

Preferably, the locking assembly 1 further comprises a limit plug 101 and a dust cover 102;

the lock body 11 is provided with a fifth mounting hole 116, the fifth mounting hole 116 is communicated with the lock hole 113, a limit hole 194 is arranged at a position of the lock rod sleeve 19 corresponding to the fifth mounting hole 116, and the limit plug 101 is inserted into the limit hole 194 after passing through the fifth mounting hole 116;

the dust cover 102 is covered on the lock body 11.

Through setting up spacing end cap 101, spacing end cap 101 can be further spacing fixed lock bar cover 192, just spacing end cap 101 plays the shutoff the effect of fifth mounting hole 116, fifth mounting hole 116 can be as the processing technology hole. Preferably, the limit plug 101 may be a cylindrical and conical structure, so that the lock rod 15 is provided with a smaller limit hole 194 while the blocking effect is ensured, and the limit fixing effect is ensured, so that the processing is convenient.

By providing the dust cap 102, it is possible to prevent dust and improve the aesthetic appearance of the latch assembly 1, and the dust cap 102 can also protect the lock body 11 and its internal components.

Further, the mounting base assembly 2 further includes a first insulating pad 22 and a conductive adhesive plate 23, the first insulating pad 22 is detachably mounted on the bottom of the fixing base 21, a first mounting groove 212 is formed in an upper end surface of the fixing base 21, and the conductive adhesive plate 23 is mounted in the first mounting groove 212.

By attaching the first insulating mat 22 to the bottom of the fixing base 21, insulation of the fixing base 21 is ensured, and in particular, the first insulating mat 22 may be detachably attached to the fixing base 21 by rivets. Through setting up conductive adhesive tape 23, when can guaranteeing to hang the earth connection, rail 4 passes through unable adjustment base 21 and earth connection are connected with the contact net, realize the connection that switches on better, in this embodiment, conductive adhesive tape 23 is provided with two. Further, the conductive adhesive plate 23 has a certain elasticity, and can be guaranteed to be better attached to the fixing base 21 and the rail 4, so that the contact surface between the fixing base 21 and the rail 4 is also enlarged, the contact surface in unit area is larger, the resistance is smaller, and the connection can be better conducted when the ground wire is hung.

Further illustration, the locking assembly 3 includes a locking block 31, a second insulating pad 32, a butterfly spring pad 33, and a first fastener 34;

the locking block 31 can move left and right and is detachably mounted on the fixed base 21, the second insulating pad 32 is detachably mounted on the bottom of the locking block 31, a bolt 311 is arranged on the top surface of the locking block 31, the butterfly elastic pad 33 is inserted into the bolt 311, the first fastening piece 34 is in threaded connection with the bolt 311, and the first fastening piece 34 is used for fastening the butterfly elastic pad 33 on the locking block 31 in a pressing manner;

the upper end face of unable adjustment base 21 is close to one side of ground stake 211 is equipped with installation piece 213, locking assembly 1 install in the up end of installation piece 213, the one side of installation piece 213 near locking assembly 3 is equipped with limiting plate 214, rail 4 chucking in between locking piece 31 with installation piece 213, the lower terminal surface of butterfly bullet pad 33 compresses tightly rail 4's surface, limiting plate 214 is located rail 4's top.

Through setting up the second insulating pad 32, guarantee the insulating nature of latch segment 31, bolt 311 with first fastener 34 screw-thread fit realizes the demountable installation of butterfly bullet pad 33, in the longitudinal direction will the butterfly bullet pad 33 press-fastening is in through first fastener 34 latch segment 31 to reach the effect of locking fixedly in the longitudinal direction, make the lower terminal surface of butterfly bullet pad 33 compress tightly the surface of rail 4.

Further, the butterfly spring pad 33 can adapt to the inclination angles corresponding to different types of rails 4, and when the first fastening piece 34 is locked, the butterfly spring pad 33 can provide larger upward elastic force, so that the locking torque of the first fastening piece 34 is increased, and the locking is not easy to loosen; the limiting plate 214 and the butterfly spring pad 33 may cooperate together to limit the movement of the rail 4 in the up-down direction, so as to ensure the fixing stability of the rail 4. Specifically, the first fastener 34 is a lock nut.

Specifically, the locking assembly 3 further includes a second fastener 35, a second mounting groove 215 is formed on a side of the fixed base 21 close to the locking block 31, a screw 216 is disposed on a side of the fixed base 21 close to the locking block 31, and the screw 216 is disposed along a left-right direction;

one side of the locking block 31, which is close to the fixing base 21, is provided with an installation boss 312, the installation boss 312 is inserted into the second installation groove 215, a sixth installation hole 313 is formed in the locking block 31 in a penetrating manner along the left-right direction, and the screw 216 is connected with the second fastening member 35 in a threaded manner after passing through the sixth installation hole 313.

The second mounting groove 215 is formed in the fixing base 21, the mounting boss 312 is formed in the locking block 31, the locking block 31 and the fixing base 21 are mounted in a matched mode, the screw rod 216 is formed in the fixing base 21, the locking block 31 is moved left and right on the screw rod 216 after the rail 4 is placed on the upper surface of the fixing base 21, the position of the locking block 31 on the screw rod 216 is adjusted, the rail 4 is clamped between the locking block 31 and the mounting block 213, the second fastening piece 35 is screwed on the screw rod 216 after adjustment is completed, locking mounting of the locking block 31 is achieved, the screw rod 216 and the second mounting groove 215 are mounted in a matched mode with the locking block 31 in a transverse direction, the rail 4 of a plurality of models can be matched in a locking mode through the butterfly spring pad 33 in a locking mode, and the mounting is convenient. Specifically, the second fastening members 35 are lock nuts, and two screws 216 are provided to ensure alignment accuracy.

Specifically, the grounding pile 211 includes a stud 2111 and a wing nut 2112, the stud 2111 is disposed on an upper end surface of the fixing base 21, the wing nut 2112 is in threaded engagement with the stud 2111, and an end portion of the lock rod 15 is located above the wing nut 2112 to limit the wing nut 2112 from being separated from the stud 2111.

The stud 2111 is used for plugging the ground wire copper nose 5, and is used as a field hanging ground wire, when the lock is locked, under the limiting effect of the lock rod 15, the butterfly nut 2112 cannot be unscrewed upwards, the ground wire copper nose 5 (installation ground wire) in the stud 2111 cannot be taken out, when the lock is unlocked, after the lock rod 15 is ejected backwards for a certain distance, the butterfly nut 2112 cannot be limited to move upwards, and at the moment, the butterfly nut 2112 can be taken out, and the corresponding ground wire can be taken out.

Further, by providing the mounting block 213, the locking assembly 1 is mounted on the upper end surface of the mounting block 213, so that the level of the locking assembly 1 is higher than the level of the wing nut 2112, and when the locking assembly is in the locked state, the end of the lock rod 15 is located above the wing nut 2112, thereby restricting the wing nut 2112 from being separated from the stud 2111.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (10)

1. The clamping rail type contact net grounding device is characterized by comprising a locking assembly, a mounting base assembly and a locking assembly;

the installation base assembly comprises a fixed base, the upper end face of the fixed base is provided with a grounding pile for connecting a ground wire, the locking assembly is installed on the fixed base, the locking assembly can move left and right and is detachably installed on the fixed base, the locking assembly is used for clamping a rail on the fixed base, and the lower end face of the rail is attached to the upper end face of the fixed base;

the locking assembly comprises a lock body, an unlocking knob, a lock tongue, a first elastic piece, a lock rod and a second elastic piece, wherein the lock body is provided with an insertion hole, a lock groove and a lock hole, the insertion hole is communicated with one end of the lock groove, the other end of the lock groove is communicated with the lock hole, the lock groove is arranged in the front-back direction, the lock hole penetrates through the lock body in the left-right direction, the unlocking knob is rotationally arranged in the insertion hole, the lock tongue is movably arranged in the lock groove in the front-back direction, and the lock rod is movably arranged in the lock hole in the left-right direction;

the unlocking knob is abutted with one end, far away from the lock rod, of the lock rod, a locking opening is formed in one side, facing the lock rod, of the lock rod, the lock rod is inserted into the locking opening, the unlocking knob rotates to drive the lock rod to be separated from the locking opening, one end of the first elastic piece is connected with the lock rod, and the other end of the first elastic piece is connected with the locking groove; one end of the second elastic piece is connected with the lock rod, and the other end of the second elastic piece is connected with the lock hole;

the end part of the lock rod is positioned above the grounding pile to limit the taking and placing of the ground wire on the grounding pile.

2. The clamping rail type contact net grounding device according to claim 1, wherein a deflector rod is arranged at the bottom of the unlocking knob, a deflector groove is arranged on one side, close to the unlocking knob, of the lock tongue, and the deflector rod is abutted with the rear end face of the deflector groove;

the inner wall of the locking groove is provided with a first step surface, the first elastic piece is sleeved on the lock tongue, one side of the lock tongue, which is close to the lock rod, is provided with a first limiting boss, one end of the first elastic piece is abutted to the first limiting boss, and the other end of the first elastic piece is abutted to the first step surface.

3. The card rail type contact net grounding device according to claim 2, wherein the locking assembly further comprises a first limit pin and a second limit pin;

the lock body is provided with a first mounting hole and a second mounting hole which are communicated with the jack on one side of the jack, the first limit pin is inserted into the first mounting hole, and the end part of the first limit pin is abutted against the upper end surface of the unlocking knob;

the second limiting pin is inserted in the second mounting hole, the unlocking knob is provided with a limiting ring groove which is sunken towards the thickness direction of the unlocking knob, the end part of the second limiting pin is inserted in the limiting ring groove, and the outer wall of the second pin abuts against the upper end face and the lower end face of the limiting ring groove.

4. The clamping rail type contact net grounding device according to claim 1, wherein the locking assembly further comprises a lock rod sleeve, the lock rod sleeve is arranged in the lock hole in a penetrating manner, an installation through hole is formed in the lock rod sleeve in a penetrating manner along the length direction of the lock rod sleeve, the lock rod is arranged in the installation through hole in a penetrating manner in a left-right moving manner, and the end portion of the lock rod protrudes out of the lock rod sleeve;

the inner wall of the installation through hole is provided with a second step surface, the second elastic piece is sleeved on the lock rod, a second limiting boss is arranged on one side, away from the grounding pile, of the lock rod, one end of the second elastic piece is abutted to the second limiting boss, and the other end of the second elastic piece is abutted to the second step surface.

5. The card rail type contact net grounding device as claimed in claim 4, wherein the locking assembly further comprises a third limit pin;

the lock body is provided with a third mounting hole below the lock hole, the lock body is provided with a fourth mounting hole above the lock hole, and the third mounting hole and the fourth mounting hole are respectively communicated with the lock hole;

the lock rod is provided with a travel limit groove along the left-right direction, the travel limit groove is positioned in the lock hole, the lock rod sleeve is provided with a through hole along the vertical direction, and the third limit pin penetrates through the third mounting hole, the travel limit groove and the through hole and then is inserted into the fourth mounting hole.

6. The card rail type contact net grounding device as claimed in claim 4, wherein the locking assembly further comprises a limit plug and a dust cover;

the lock body is provided with a fifth mounting hole, the fifth mounting hole is communicated with the lock hole, a limiting hole is formed in the position, corresponding to the fifth mounting hole, of the lock rod sleeve, and the limiting plug penetrates through the fifth mounting hole and then is inserted into the limiting hole;

the dust cover is arranged on the lock body.

7. The card rail type contact net grounding device according to claim 1, wherein the installation base assembly further comprises a first insulating pad and a conductive rubber plate, the first insulating pad is detachably installed at the bottom of the fixed base, a first installation groove is formed in the upper end face of the fixed base, and the conductive rubber plate is installed in the first installation groove.

8. The card rail type contact net grounding device according to claim 1, wherein the locking assembly comprises a locking block, a second insulating pad, a butterfly spring pad and a first fastener;

the locking block can move left and right and is detachably arranged on the fixed base, the second insulating pad is detachably arranged at the bottom of the locking block, a bolt is arranged on the top surface of the locking block, the butterfly elastic pad is inserted into the bolt, the first fastening piece is in threaded connection with the bolt, and the first fastening piece is used for fastening the butterfly elastic pad to the locking block in a pressing mode;

the utility model discloses a track, including the earth pile, the up end of unable adjustment base is close to one side of earth pile is equipped with the installation piece, the locking subassembly install in the up end of installation piece, one side of installation piece that is close to the locking subassembly is equipped with the limiting plate, the rail chucking in the locking piece with between the installation piece, the lower terminal surface of butterfly bullet pad compresses tightly the surface of rail, the limiting plate is located the top of rail.

9. The clamping rail type contact net grounding device according to claim 8, wherein the locking assembly further comprises a second fastening piece, a second mounting groove is formed in one side, close to the locking block, of the fixing base, a screw is arranged in one side, close to the locking block, of the fixing base, and the screw is arranged in the left-right direction;

one side of the locking block, which is close to the fixed base, is provided with a mounting boss, the mounting boss is inserted into the second mounting groove, a sixth mounting hole is formed in the locking block in a penetrating mode in the left-right direction, and the screw rod penetrates through the sixth mounting hole and then is in threaded connection with the second fastening piece.

10. The clamping rail type contact net grounding device according to claim 1, wherein the grounding pile comprises a stud and a butterfly nut, the stud is arranged on the upper end face of the fixing base, the butterfly nut is in threaded fit with the stud, and the end portion of the lock rod is located above the butterfly nut to limit the butterfly nut from being separated from the stud.