CN113612177B - Wall bushing and tubular bus connecting and supporting hardware fitting - Google Patents

Abstract

The invention relates to a wall bushing and tubular bus connection support fitting, which comprises: the sleeve terminal holding clamps and the pipe bus holding clamps are arranged at intervals in the left and right directions and are connected through a connecting and supporting device; the sleeve terminal holding clamp and the pipe bus holding clamp are in conductive connection through a conductive belt; the connecting and supporting device comprises a first connecting piece and a second connecting piece, wherein the first connecting piece and the second connecting piece are assembled together in a sliding and supporting mode along the left-right direction and used for realizing the relative movement of the tubular bus and the wall bushing in the left-right direction through the relative sliding of the two connecting pieces; and universal connecting structures are correspondingly arranged between the first connecting piece and the sleeve terminal holding clamp and/or between the second connecting piece and the pipe bus holding clamp, and are used for enabling the pipe bus and the wall bushing to swing relatively. The wall bushing and tubular bus connection support fitting provided by the invention is in assembly connection with the tubular bus through the tubular bus holding clamp, so that a sliding rotary table is prevented from being designed to be matched with the tubular bus, and the requirement on a connection fitting is reduced.

Description

Wall bushing and tubular bus connecting and supporting hardware fitting

Technical Field

The invention relates to a wall bushing and tubular bus connection support hardware fitting.

Background

The connection support hardware fitting is used for connecting the wall bushing and the tubular bus in the converter station valve hall, the connection support hardware fitting can realize the support connection of the wall bushing and the tubular bus, meanwhile, the connection support hardware fitting is also provided with conductive belts for realizing the conductive connection of the wall bushing and the tubular bus, the conductive belts are provided with redundancy, and the conductive connection is still ensured when the tubular bus moves relative to the wall bushing. The structure of the hardware fitting is as the connection supporting hardware fitting of the 800KV wall bushing and the current transformer provided in the Chinese invention patent with the application publication number of CN103915799A, the connection supporting hardware fitting comprises a rotation connecting device, the rotation connecting device comprises a fixing rod, one end of the fixing rod is connected with two fixing disks which are oppositely buckled, the other end of the fixing rod is connected with hinge blocks which are vertically turned through hinge shafts, the other hinge hole of each hinge block is connected to a hinge seat through the hinge shaft, the fixing disks are used for being fixedly connected with the end part of a pipe bus, and the hinge seats are used for being connected with terminals of the wall bushing. Above-mentioned rotate connecting device can play the supporting role to wall bushing and tub generating line under normal conditions, satisfy relative pivoted demand between wall bushing and the tub mother, however, can only rotate between wall bushing and the tub mother, relative distance between wall bushing and the tub mother can not change, when receiving impact load, this rotation connecting device is rigid connection, when great rocking appears in tub generating line, can directly cause the rigidity to the wall bushing and strike, lead to the wall bushing to take place to damage easily.

Corresponding to above-mentioned rigid connection's gold utensil, the gold utensil is crossed over current with wall bushing and tub generating line cross-over connection in the chinese utility model patent that the bulletin number of authorizing is CN202268606U provided a 400KV current conversion station, this cross-over connection overflows the gold utensil and includes rotation connecting device, rotation connecting device includes the connecting rod, the one end and the wall bushing of connecting rod pass through the universal joint and are connected, be equipped with the slip carousel on the other end of connecting rod, in order to be used for the slip assembly in tub generating line, this rotation connecting device can make relative rotation between wall bushing and the tub mother, can make the relative distance between wall bushing and the tub mother change again, reduce the rigid impact that the pipe generating line caused to the wall bushing when rocking. However, this assembly method is prone to wear of the tube bus when subjected to impact loads. Moreover, because the slip carousel that rotates connecting device slides and assembles in tubular bus, need make slip carousel and the female adaptation of pipe during the assembly, require highly to the gold utensil, correspond different tubular bus and wall bushing, not only need set up the embrace of corresponding size and press from both sides, still need design the slip carousel that corresponds the size, require highly to corresponding gold utensil, influence the commonality that the gold utensil crossed the bridging.

Disclosure of Invention

The invention aims to provide a wall bushing and tubular bus connecting and supporting fitting, which aims to solve the technical problem that the requirement on a connecting fitting is high due to the fact that a sliding rotary disc needs to be designed to be matched with a tubular bus when a corresponding fitting is installed between the wall bushing and the tubular bus in the prior art.

In order to achieve the purpose, the technical scheme of the connecting and supporting hardware fitting for the wall bushing and the tubular bus provided by the invention is as follows:

the sleeve terminal holding clamps and the pipe bus holding clamps are arranged at intervals in the left and right directions and are connected through a connecting and supporting device;

the sleeve terminal holding clamp is used for being fixedly connected with a terminal of the wall bushing in a conductive manner, and the tubular bus holding clamp is used for being fixedly connected with a to-be-connected end of a tubular bus in a conductive manner;

the sleeve terminal holding clamp and the pipe bus holding clamp are in conductive connection through a conductive belt;

the wall bushing is characterized in that the connecting and supporting device extends along the left-right direction and comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are slidably supported and assembled together along the left-right direction and are used for realizing the relative movement of the tubular bus and the wall bushing in the left-right direction through the relative sliding of the two connecting pieces;

and universal connection structures are correspondingly arranged between the first connecting piece and the sleeve terminal holding clamp and/or between the second connecting piece and the pipe bus holding clamp, and are used for enabling the pipe bus and the wall bushing to swing relatively.

The beneficial effects are that: compared with the prior art that relative sliding occurs between a fitting and a tubular bus, in the wall bushing and tubular bus connecting and supporting fitting provided by the invention, the first connecting piece and the second connecting piece are assembled together in a sliding and supporting manner, and relative movement between the two clasping clamps can be realized through relative sliding of the two connecting pieces in the left and right directions, namely, the relative sliding occurs in the connecting and supporting fitting, so that the wall bushing is prevented from being influenced by left and right movement of the tubular bus, a corresponding sliding turntable can be prevented from being designed according to different tubular buses, and the technical problem that the requirement of the connecting fitting is high in the installation process is solved. In addition, a universal connecting structure is arranged between the corresponding connecting piece and the opposite clamping device, so that the tubular bus and the wall bushing can swing relatively, when the tubular bus and the wall bushing are impacted by external force, the tubular bus and the wall bushing can swing to avoid the impact, and the damage to the tubular bus and the wall bushing caused by the impact of the external force can be avoided.

As a further improvement, the first connecting piece and/or the second connecting piece have weak connecting structures, and when the two clasps move back to back in the left-right direction and the tensile force borne by the two connecting pieces reaches the weak connecting structure bearing limit, the corresponding weak connecting structures are disconnected, so that the connecting and supporting device is disconnected.

The beneficial effects are that: set up weak connection structure, when the pulling force load that two connecting pieces bore surpassed weak connection structure and bore the limit, weak connection structure disconnection for connect the strutting arrangement disconnection, cut off the mechanical connection of wall bushing and tub generating line, make the wall bushing be in free state, do not receive tub generating line constraint in the certain limit, effectively protect the wall bushing not suffer destruction because of external force. And, there is weak connection structure to arrange on corresponding connecting piece, and the disconnection position must be on corresponding connecting piece, can effectively avoid too big stress damage wall bushing, can provide mechanical overload protection for whole connection support gold utensil.

As a further improvement, one of the first connecting piece and the second connecting piece is a guide rod, the other connecting piece is a guide cylinder, the guide rod and the guide cylinder both extend in the left-right direction, the guide rod is slidably supported and assembled in the guide cylinder, and the guide rod and/or the guide cylinder are/is provided with the weak connecting structure.

The beneficial effects are that: the first connecting piece and the second connecting piece are assembled by adopting a guide rod and a guide cylinder to slide and support, and the design is that the matching mode is more stable and smooth in sliding. The weak connection structure is arranged on the guide rod and/or the guide cylinder, and is designed to facilitate processing and maintenance.

As a further improvement, the guide cylinder comprises a cylinder body and two end covers, the two end covers pass through the end covers and the connecting end cover, the connecting end cover is connected with one of the two clasps, the guide rod is connected with the other of the two clasps, the guide rod penetrates into the guide cylinder through the end cover, an anti-drop flange is arranged on the guide rod and is used for matching with the anti-drop stop of the passing end cover, and when the weak connecting structure is arranged on the guide cylinder, the passing end cover and/or the connecting end cover are fixedly connected with the cylinder body through the corresponding weak connecting structure on the guide cylinder.

Has the beneficial effects that: the guide cylinder comprises a cylinder body and two end covers, the two end covers penetrate through the end covers and are connected with the end covers, the connection structure of the end covers and the cylinder body can be used in the design, a weak connection structure is formed, and assembly and maintenance are facilitated.

As a further improvement, in the cylinder and the corresponding end cover which are fixedly connected through the weak connection structure, one of the cylinder and the corresponding end cover is a mounting part, and the other one of the cylinder and the corresponding end cover is a disconnecting part, and the weak connection structure between the mounting part and the disconnecting part comprises a latch, a clamping adapter part and an elastic element;

the clamping teeth are hinged to the mounting piece, a plurality of clamping teeth are uniformly distributed at intervals around the circumferential direction of the mounting piece, and each clamping tooth is provided with a clamping part;

the clamping adapting part is arranged on the disengaging piece and corresponds to the clamping teeth;

the elastic element is arranged on the mounting piece, and applies elastic acting force for forcing the latch to swing towards the clamping adapting part so as to force the clamping part of the latch to keep clamping assembly with the clamping adapting part, thereby realizing the fixed connection of the mounting piece and the release piece;

still be equipped with slope dropout structure between joint portion and the joint adaptation portion, when the detached effort of forcing back on the back of the body mutually reaches the setting value that receives between barrel and corresponding end cover, under the guide of slope dropout structure, the latch is overcome elastic element's elastic force swings with the direction of keeping away from corresponding joint adaptation portion in order to realize the disconnection of installed part and throw-off piece.

Has the advantages that: weak connection structure adopts this kind of design of latch, joint adaptation portion and elastic element, can make weak connecting piece can realize harmless disconnection, can resume rapidly in overhauing, improves the efficiency of overhauing. Still be equipped with slope dropout structure between joint portion and the joint adaptation portion, the design is in order to prevent after the effort reaches the setting value like this, can not throw off smoothly between joint portion and the joint adaptation portion, influences the protective effect to wall bushing. And, utilize elastic element to exert elastic force to slide caliper rule, conveniently select the elastic element of different elastic coefficient according to different demands for the commonality of whole connection support gold utensil is better.

As a further improvement, the elastic element is an annular spring, the outside of the latch facing away from the clamping adaptation part is provided with a groove, the groove extends along the circumferential direction of the mounting piece, all the grooves are used for correspondingly penetrating in the circumferential direction of the mounting piece to form an annular mounting groove, and the annular mounting groove is used for mounting the annular spring.

Has the advantages that: the elastic element is an annular spring, so that the installation is convenient, and when the annular spring is damaged due to external force, the annular spring only needs to be replaced independently, and the maintenance cost is low.

As a further improvement, the clamping adapting part is an annular flange, and the clamping part on the clamping tooth is of a hook head structure.

Has the advantages that: the clamping part on the clamping tooth is of a hook head structure, and the clamping adaptive part is an annular flange. The structure is relatively stable when fixed connection is realized, and the structure is relatively easy to process, so that the production cost is saved.

As a further improvement, the connecting end cover is connected with the corresponding holding clamp in a swinging mode through the universal connecting structure, and the universal connecting structure between the connecting end cover and the corresponding holding clamp is a joint bearing.

Has the advantages that: the connecting end cover is connected with the corresponding clamp in a swinging mode through the universal connecting structure, the universal connecting structure enables the tubular bus and the wall bushing to swing relatively, when the wall bushing is impacted by external force, certain dodging effect is achieved on the impact of the external force, and the possibility that the wall bushing and the tubular bus are damaged is reduced. The universal connection structure is a joint bearing, and the design is convenient to install.

As a further improvement, the joint bearing comprises an inner ring and an outer ring which are matched for use, a bearing seat is fixedly installed on a corresponding holding clamp connected with the connecting end cover, the outer ring is fixedly installed on the bearing seat, a connecting shaft is fixedly assembled on the connecting end cover through a threaded connecting structure, and the connecting shaft and the inner ring are fixedly assembled.

Has the advantages that: and a bearing seat is fixedly arranged on the corresponding holding clamp and can be used for connecting the corresponding holding clamp with the joint bearing. The connecting end cover is connected with the joint bearing through the connecting shaft, and the design is convenient for assembly.

As a further improvement, when the connecting end cover is fixedly connected with the cylinder body through the weak connection structure, the penetrating end cover is detachably assembled with the cylinder body through a screw connection structure or spirally detachably assembled with the cylinder body.

Has the advantages that: the design is in order to prevent that the guide cylinder breaks away from connecting strutting arrangement after weak connection structure breaks off, leads to the guide cylinder to lose, brings the inconvenience for the maintenance.

Drawings

Fig. 1 is a schematic structural view of a connection support fitting for a wall bushing and a tubular bus bar provided by the invention;

FIG. 2 is a schematic view of the connection support device of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of FIG. 2;

FIG. 5 is a schematic structural view of the left end cap of FIG. 2;

FIG. 6 is a schematic structural view of the right end cap of FIG. 2;

FIG. 7 is a schematic view of the joint bearing of FIG. 2;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a schematic view of the bearing housing of FIG. 2;

FIG. 10 is a side view of FIG. 9;

fig. 11 is a top view of the mounting arm of fig. 9.

Description of reference numerals:

1. clamping the sleeve terminal; 2. a guide bar; 21. mounting a plate; 22. an anti-drop flange; 3. a guide cylinder; 31. passing through the end cap; 32. connecting an end cover; 33. clamping teeth; 34. an annular spring; 35. a barrel; 36. a guide hole; 37. a hinge mounting portion; 38. a set screw assembly hole; 39. an annular flange; 40. a hook; 5. a connecting shaft; 6. a knuckle bearing; 61. an inner ring; 62. an outer ring; 63. a bolt mounting hole; 7. a bearing seat; 71. a support arm; 72. mounting an arm; 73. a pipe main clamp mounting hole; 74. a bolt mating hole; 8. clamping the pipe bus; 9. a tubular bus; 10. a conductive tape.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude a process, method, or the like that includes the element.

In the description of the invention, unless expressly stated or limited otherwise, the terms "mounted", "connected" and "connected" when used in this context are to be construed broadly, as for example they may be fixedly connected, releasably connected or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention will be described in further detail with reference to examples.

The specific embodiment 1 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

as shown in fig. 1, the wall bushing and tubular busbar connection support fitting provided in this embodiment includes a connection support device, where the connection support device is provided with a first connection piece and a second connection piece that are slidably assembled, and relative movement between the wall bushing and the tubular busbar can be realized through relative sliding between the first connection piece and the second connection piece. This embodiment has avoided designing corresponding slip carousel according to different tub of generating lines through the sliding fit who adopts first connecting piece and second connecting piece, has solved the higher technical problem of link fitting requirement in the installation.

Specifically, as shown in fig. 1, the connection support fitting includes a sleeve terminal holding clamp 1 and a pipe bus holding clamp 8, the sleeve terminal holding clamp 1 and the pipe bus holding clamp 8 are arranged at two ends of the connection support device at intervals in the left-right direction, and the connection support device is used for supporting and connecting the sleeve terminal holding clamp 1 and the pipe bus holding clamp 8. The sleeve terminal holding clamp 1 is used for forming conductive fixed connection with a terminal of a wall bushing, and the tubular bus holding clamp 8 is used for forming conductive fixed connection with a to-be-connected end of a tubular bus 9. The sleeve pipe terminal is embraced and is pressed from both sides 1 and the female clamp of pipe and press from both sides between 8 and be connected through conductive band 10 electricity conduction, guarantees during the installation that the length of conductive band 10 is not less than the sleeve pipe terminal and embraces the biggest free distance that presss from both sides 1 and the female clamp of pipe between 8, and conductive band 10 embraces along the sleeve pipe terminal and presss from both sides 1 and the female circumference distribution of embracing of pipe and pressing from both sides 8, wholly is lantern-shaped structure, and conductive band 10's structure is prior art, does not do here to describe repeatedly.

In this embodiment, as shown in fig. 2, the connection supporting device extends along the left-right direction, the connection supporting device includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are slidably supported and assembled together along the left-right direction, the first connecting piece adopts a guide rod 2, the second connecting piece adopts a guide cylinder 3, the guide rod 2 and the guide cylinder 3 both extend along the left-right direction, the guide rod 2 slidably supports and assembles in the guide cylinder 3, a weak connection structure is arranged on the guide cylinder 3, when the sleeve terminal embracing clamp 1 and the pipe nut embracing clamp 8 move back to back in the left-right direction, and the tensile force borne by the two connecting pieces reaches the bearing limit of the weak connection structure, the weak connection structure is disconnected, so that the connection supporting device is disconnected, at this moment, the connection supporting device fails, the sleeve terminal embracing clamp 1 and the pipe nut embracing clamp 8 are only conductively connected through a conductive band 10, the wall bushing is not bound by the connection supporting device, and is in a relatively free state.

In this embodiment, since the maximum bearing capacity of the wall bushing is generally 2000N, when the weak connection structure is set to bear a limit, the maximum bearing capacity should not be greater than 2000N, and the specific numerical value should be set according to the actual situation.

As shown in fig. 3, the guiding cylinder 3 includes a cylinder body 35 and two end caps, the two end caps are a penetrating end cap 31 and a connecting end cap 32, in this embodiment, the end cap at the left end of the cylinder body 35 is the penetrating end cap 31, and the end cap at the right end of the cylinder body 35 is the connecting end cap 32. The specific structure passing through the end cap 31 is shown in fig. 5, a guide hole 36 is formed in the end cap 31, the guide rod 2 passes through the guide hole 36 and penetrates into the guide cylinder 3, an anti-separation flange 22 is formed on the corresponding guide rod 2, the radial dimension of the anti-separation flange 22 is larger than that of the guide hole 36, and the anti-separation flange 22 is used for being matched with the anti-separation through the end cap 31 in a retaining manner. A set screw mounting hole 38 is also provided through the end cap 31 for fitting a fastening screw to be mounted at the left end of the cylinder 35 through the end cap 31, so that the screw connection structure through the end cap 31 is detachably mounted with the cylinder 35.

As shown in fig. 2 and 4, the connection end cap 32 is fixedly connected to the cylinder 35 through a weak connection structure, in this embodiment, the connection end cap 32 is a mounting member, and the cylinder 35 is a release member. The weak connection between the mounting and the release element comprises a latch 33, a snap fit and a spring element. The concrete structure of connecting end cover 32 is as shown in fig. 6, and connecting end cover 32 circumference interval equipartition has 6 articulated installation portion 37, and latch 33 articulates and installs on articulated installation portion 37, and latch 33 has joint portion. Be equipped with joint adaptation portion on barrel 35, joint adaptation portion corresponds latch 33 and arranges. Elastic element sets up on the installed part, applys its swing elastic force towards joint adaptation portion of forcing to latch 33 to the joint portion and the joint adaptation portion of forcing latch 33 keep the joint assembly, and then realize the fixed connection of installed part and stripping part.

As shown in fig. 3, the locking portion is designed as a hook 40, and the hook 40 is a hook head structure. The snap fit is provided by an annular flange 39. Elastic element is annular spring 34, is equipped with the recess on the outside of the joint adaptation portion dorsad on the latch 33 that corresponds, and the recess extends along installed part circumference, and the recess on each latch 33 is used for forming annular mounting groove in the circumference of installed part, and annular mounting groove is used for installing annular spring 34.

An inclined release structure is arranged between the hook 40 and the annular flange 39, and when the hook 40 and the annular flange 39 are contacted with each other, the contact surfaces on the hook 40 and the annular flange 39 are arc-shaped surfaces which are used as the inclined release structure. When the force applied between the cylinder 35 and the connecting end cap 32 to force the two apart reaches a set value, the latch 33 swings away from the corresponding clamping adapter against the elastic force of the elastic element under the guidance of the inclined release structure, so that the mounting part and the release part are disconnected.

In this embodiment, the left end of the connection supporting device is fastened and connected with the casing terminal clamp 1 through the guide rod 2, as shown in fig. 2, the left end of the guide rod 2 is provided with the mounting plate 21, and the mounting plate 21 is used for being fastened and connected with the casing terminal clamp 1. The right end of the connecting and supporting device is fixedly connected with the pipe female clamp 8 through the knuckle bearing 6, the knuckle bearing 6 serves as a universal connecting structure, the concrete structure of the knuckle bearing 6 is shown in figures 7 and 8, the knuckle bearing 6 comprises an inner ring 61 and an outer ring 62 which are matched for use, and a bolt mounting hole 63 is formed in the outer ring 62 and is used for being fixedly connected with the bearing seat 7. The bearing seat 7 is fixedly mounted on the pipe female holding clamp 8, the specific structure of the bearing seat 7 is shown in fig. 9, the bearing seat 7 comprises two bearing mounting frames, each bearing mounting frame is L-shaped, each bearing mounting frame comprises a supporting arm 71 and a mounting arm 72, the supporting arm 71 and the mounting arm 72 extend perpendicularly to each other, the mounting arm 72 is provided with a slot structure, and the slot structure is inserted into the outer ring 62 of the joint bearing 6 and used for forming inserting positioning on the outer ring 62 of the joint bearing 6. As shown in fig. 10, the supporting arm 71 is provided with a female clamp mounting hole 73 for fixedly mounting on the female clamp 8. As shown in fig. 11, the mounting arm 72 is provided with a bolt fitting hole 74 for fitting with the bolt mounting hole 63 and is fastened and connected to the outer ring 62 of the joint bearing 6 by a bolt.

In this embodiment, the joint bearing 6 is connected to the connecting end cap 32 via the connecting shaft 5. As shown in fig. 3, the end cap on the right side of the guide cylinder 3 is fixedly assembled with a connecting shaft 5 through a threaded connection structure, the connecting shaft 5 is provided with an external thread, the connecting shaft 5 passes through the inner ring 61 of the joint bearing 6, and the connecting shaft 5 and the inner ring 61 are fixedly assembled through a nut. In this embodiment, the structures of the sleeve terminal clasping clamp 1 and the pipe nut clasping clamp 8 are both in the prior art, and are not described herein in detail.

When the wall bushing and the tubular bus connection support fitting provided by the embodiment is in support connection between the wall bushing and the tubular bus 9, the guide rod 2 and the guide cylinder 3 can slide relatively to each other, so that the tubular bus 9 and the wall bushing can move relatively in the left-right direction, and the tubular bus 9 and the wall bushing can swing relatively to each other through the joint bearing 6 serving as a universal connection structure. When the wall bushing is impacted by external force, the tubular bus 9 and the wall bushing relatively move and swing to convert impact load into flexible load, so that the wall bushing is prevented from being damaged. When external force strikes when great, receive between barrel 35 and the connection end cover 32 and force both to carry on one's back separately effort, exceed weak connection structure at this effort and bear the limit, weak connection structure disconnection cuts off the mechanical connection of wall bushing and pipe generating line 9, makes the wall bushing be in free state, does not receive pipe generating line 9 constraint in certain extent, and weak connection structure forms mechanical overload protection, and effective protection wall bushing does not suffer destruction because of external force.

The wall bushing and the tubular bus connection support gold utensil that this embodiment provided are through embracing through the tubular bus and pressing from both sides 8 and be connected with tubular bus 9, have avoided the design slip carousel in order with tubular bus adaptation, have solved the technical problem that requires high to the gold utensil of linking.

The invention provides a concrete embodiment 2 of a wall bushing and tubular bus connection support fitting, which comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, the second connecting member is a guide cylinder, and the universal connecting structure is arranged between the second connecting member and the pipe clamp. In this embodiment, the universal connection structure is disposed between the first connection member and the sleeve terminal clamp, and also enables the tubular bus and the wall bushing to swing relatively.

Of course, in other embodiments, universal connection structures may be respectively disposed between the first connection member and the sleeve terminal holding clamp, and between the second connection member and the tubular bus holding clamp, so as to implement relative swinging between the tubular bus and the wall bushing.

The specific embodiment 3 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, the first connecting member is a guide bar, the second connecting member is a guide cylinder, and the guide bar is slidably supported and fitted to the guide cylinder. In this embodiment, the first connecting member and the second connecting member are supporting plates, the supporting plates are rigid members, one of the supporting plates is provided with a long slot hole, the other supporting plate is provided with a round hole, when the two supporting plates are guided and attached, the long slot hole and the round hole are correspondingly communicated, and a pin shaft is inserted in the long slot hole and the round hole so that the long slot hole and the round hole are connected through the pin shaft, and the pin shaft can slide along the long slot hole.

The specific embodiment 4 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, the universal joint structure is realized by using a joint bearing. In this embodiment, the universal connection structure may adopt a universal coupling.

The specific embodiment 5 of the connection support fitting for the wall bushing and the tubular bus provided by the invention:

the difference from example 1 is mainly that: in example 1, the second connecting member is a guide cylinder, and the connecting structure between the connecting end cover and the cylinder body forms a corresponding weak connecting structure. In this embodiment, weak connection structure establishes on first connecting piece, first connecting piece is the guide bar, be equipped with the circumference recess on the guide bar, form the necking down structure, the intensity of this necking down structure position department will be less than the intensity of other positions of guide bar, and, the extreme effort that this necking down structure of special design bore is less than the effort is born in the sheathed tube design of wall penetration, so, the circumference recess forms weak connection structure promptly, when two embrace the clamp in the right and left direction back of the body motion of going back to back, the guide bar bears the pulling force with the guide cylinder and is greater than the bearing limit of this circumference recess when, the guide bar breaks off in circumference recess department, make the connection support device disconnection.

The specific embodiment 6 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, weak connection structure is located between connecting end cover and the barrel, and weak connection structure includes latch, joint adaptation portion and elastic element. In this embodiment, weak connection structure also can be located the barrel, the barrel includes left barrel and right barrel this moment, left side barrel and right barrel pass through buckle structure and realize fixed connection, this buckle structure adopts the latch, joint adaptation portion and elastic element's mode, wherein, the latch, joint adaptation portion and elastic element's structure and mounting means can refer to latch in embodiment 1, joint adaptation portion and elastic element's structure and mounting means, no longer describe here, at this moment, when two armful clamp left and right sides upward back of the body motion, the guide bar bears the pulling force with the guide cylinder and is greater than this buckle structure's the time limit of bearing, the guide cylinder breaks off in buckle structure department, make the connection support device disconnection.

Certainly, in other embodiments, weak connection structure on the guide cylinder itself also can set up a plurality of holes that weaken that distribute along circumference on the barrel of guide cylinder in the middle part, and then weakens the hole position and form corresponding weak connection structure, and this weak connection structure's the limit of bearing must be less than the wall bushing's design limit, when the guide cylinder bears great pulling force, must follow weak connection structure department disconnection earlier.

The specific embodiment 7 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, the first link and the second link are engaged by a sliding support of the guide bar and the guide cylinder, and the weak link structure is located on the guide cylinder. In this embodiment, first connecting piece adopts embodiment 3's cooperation mounting means with the second connecting piece, the slotted hole extends left right direction and extends, the backup pad that is equipped with the slotted hole is the deflector for short below, the backup pad that is equipped with the round hole is the sliding plate for short below, the deflector is equipped with towards the one end of sliding plate and weakens hole or recess, weaken hole or recess position department and form corresponding weak connection structure, this weak connection structure's the limit of bearing must be less than the design limit of wall bushing, when two backup pads are bearing the pulling force that makes its back of the body motion, must follow this weak connection structure department disconnection earlier.

The specific embodiment 8 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises the following steps:

the difference from example 1 is mainly that: in embodiment 1, the annular spring is adopted to hoop each latch inwards, so that the hook head structure of the latch is matched with the hook and the clamp of the annular flange. In this embodiment, the elastic element may be a tension spring, and one tension spring is disposed corresponding to each latch, and one end of the tension spring is connected to the latch and the other end of the tension spring is connected to the corresponding connecting end cap, so as to apply an elastic force to the latch to force the latch to press the annular flange.

The specific embodiment 9 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention:

the difference from example 1 is mainly that: in example 1, the end cap was attached as a mounting and the barrel as a release. In this embodiment, the cylinder can be used as the mounting element, a plurality of latches can be hinged on the cylinder, the connecting end cap can be used as the release element, at this time, an annular flange is arranged on the connecting end cap to be matched with the hook hooks at the corresponding end parts of the latches, and at this time, of course, the elastic element is arranged on the cylinder.

The specific embodiment 10 of the connection support fitting for the wall bushing and the tubular bus provided by the invention is as follows:

the difference from example 1 is mainly that: in embodiment 1, the annular flange on the barrel is as joint adaptation portion, and in this embodiment, can set up the boss respectively corresponding to each latch on the barrel, mutual independence between each boss, each boss is as joint adaptation portion jointly, needs design slope dropout structure between each boss and latch this moment.

Of course, in other embodiments, an annular groove may be provided on the cylinder, and the annular groove may also be inserted into the protrusion at the corresponding end of the latch as the snap fit portion, and at this time, an inclined release structure needs to be designed between the annular groove and the latch.

The specific embodiment 11 of the connection support fitting for the wall bushing and the tubular bus provided by the invention:

the difference from example 1 is mainly that: in embodiment 1, the through end cover is detachably assembled with the barrel body through a screw connection structure. In this embodiment, pass the inside internal thread that sets up of end cover, the outside of the corresponding end of barrel sets up the external screw thread, and the internal and external screw-thread fit for pass the removable assembly of end cover spiral on corresponding barrel.

The specific embodiment 12 of the connection support fitting for the wall bushing and the tubular bus provided by the invention:

the difference from example 1 is mainly that: in embodiment 1, a joint bearing as a universal joint structure is correspondingly assembled between the connecting end cover and the pipe clamp through the bearing seat and the connecting shaft. In this embodiment, the outer ring of the joint bearing may also be fixedly assembled with the connecting end cover, the inner ring may be fixedly assembled with the tubular female clamp, the connecting end cover is provided with a corresponding bearing seat for fixedly mounting the outer ring, the tubular female clamp may be fixedly assembled with a connecting shaft or a connecting frame, and the connecting shaft or the connecting frame is fixedly assembled with the inner ring.

The specific embodiment 13 of the connection support fitting for the wall bushing and the tubular bus provided by the invention:

the difference from example 1 is mainly that: in embodiment 1, the clamping portion of the latch on the connecting end cover is a hook head structure, the clamping adaptive portion on the corresponding barrel is a protrusion, and the clamping stop is realized by means of the step structure formed by one side of the protrusion and the corresponding barrel. In this embodiment, the joint portion of latch is for sunken on the link lid, and is sunken to the arc structure, and at this moment, joint adaptation portion on the barrel still adopts protrudingly, and this is protruding to coincide with corresponding sunken inserting and is joined in marriage, utilizes the sunken side of arc to form slope dropout structure, is convenient for form corresponding weak connection structure.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A wall bushing and tubular bus connection support fitting comprises: the sleeve terminal holding clamps (1) and the pipe bus holding clamps (8) are arranged at intervals in the left and right directions and are connected through a connecting and supporting device;

the sleeve terminal holding clamp (1) is used for being fixedly connected with a terminal of a wall bushing in a conductive mode, and the tubular bus holding clamp (8) is used for being fixedly connected with a to-be-connected end of a tubular bus (9) in a conductive mode;

the sleeve terminal holding clamp (1) is in conductive connection with the pipe bus holding clamp (8) through a conductive belt (10);

the wall bushing is characterized in that the connecting and supporting device extends along the left-right direction and comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are slidably supported and assembled together along the left-right direction and are used for realizing the relative movement of the tubular bus (9) and the wall bushing in the left-right direction through the relative sliding of the two connecting pieces;

moreover, universal connection structures are correspondingly arranged between the first connecting piece and the sleeve terminal holding clamp (1) and/or between the second connecting piece and the pipe bus holding clamp (8) and are used for enabling the pipe bus (9) and the wall bushing to swing relatively;

the first connecting piece and/or the second connecting piece are/is provided with weak connecting structures, and when the two clasping clamps move back to back in the left-right direction and the tensile force borne by the two connecting pieces reaches the bearing limit of the weak connecting structures, the corresponding weak connecting structures are disconnected, so that the connecting and supporting device is disconnected;

one of the first connecting piece and the second connecting piece is a guide rod (2), the other connecting piece is a guide cylinder (3), the guide rod (2) and the guide cylinder (3) extend along the left-right direction, the guide rod (2) is assembled in the guide cylinder (3) in a sliding support mode, and the guide rod (2) and/or the guide cylinder (3) are/is provided with the weak connecting structure;

the guide cylinder (3) comprises a cylinder body (35) and two end covers, the two end covers penetrate through an end cover (31) and a connecting end cover (32), the connecting end cover (32) is connected with one of the two clasps, the guide rod (2) is connected with the other of the two clasps, the guide rod (2) penetrates into the guide cylinder (3) through the penetrating end cover (31), an anti-falling flange (22) is arranged on the guide rod (2), the anti-falling flange (22) is used for being matched with the penetrating end cover (31) in an anti-falling and blocking mode, and when the weak connecting structure is arranged on the guide cylinder (3), the penetrating end cover (31) and/or the connecting end cover (32) are fixedly connected with the cylinder body (35) through the corresponding weak connecting structure on the guide cylinder (3);

one of the barrel body (35) and the corresponding end cover which are fixedly connected through the weak connection structure is a mounting part, the other one is a disconnecting part, and the weak connection structure between the mounting part and the disconnecting part comprises a latch (33), a clamping adapting part and an elastic element;

the clamping teeth (33) are hinged to the mounting piece, a plurality of clamping teeth (33) are uniformly distributed at intervals around the circumferential direction of the mounting piece, and each clamping tooth (33) is provided with a clamping part;

the clamping adapting part is arranged on the disengaging piece and corresponds to the clamping teeth (33);

the elastic element is arranged on the mounting piece, and applies elastic acting force for forcing the latch (33) to swing towards the clamping adapting part so as to force the clamping part of the latch (33) to keep clamping assembly with the clamping adapting part, so that the mounting piece is fixedly connected with the release piece;

still be equipped with slope dropout structure between joint portion and the joint adaptation portion, when the power that receives between barrel (35) and corresponding end cover forces both to carry on the back separately effort and reach the setting value, under the guide of slope dropout structure, latch (33) are overcome elastic element's elastic force is in order to swing towards the direction of keeping away from corresponding joint adaptation portion, and then realizes the disconnection of installed part and stripping part.

2. The wall bushing and tubular busbar connection support fitting of claim 1, wherein the elastic element is an annular spring (34), the outer side of the latch (33) facing away from the clamping adapting part is provided with grooves extending along the circumferential direction of the mounting piece, and all the grooves are used for correspondingly penetrating in the circumferential direction of the mounting piece to form an annular mounting groove for mounting the annular spring (34).

3. The wall bushing and tubular busbar connection support fitting of claim 1, wherein the clamping adapting portion is an annular flange (39), and the clamping portion on the clamping tooth (33) is of a hook head structure.

4. The through-wall sleeve and tubular busbar connection support fitting according to any one of claims 1 to 3, wherein the connection end cover (32) is in swing connection with the corresponding clamp through the universal connection structure, and the universal connection structure between the connection end cover (32) and the corresponding clamp is a joint bearing (6).

5. The wall bushing and tubular busbar connection support fitting of claim 4, wherein the knuckle bearing (6) comprises an inner ring (61) and an outer ring (62) which are matched with each other, a bearing seat (7) is fixedly mounted on a corresponding clamp connected with the connecting end cover (32), the outer ring (62) is fixedly mounted on the bearing seat (7), a connecting shaft (5) is fixedly assembled on the connecting end cover (32) through a threaded connection structure, and the connecting shaft (5) and the inner ring (61) are fixedly assembled.

6. The wall bushing and tubular busbar connection support fitting according to claim 1 or 2, wherein when the connection end cover (32) is fixedly connected with the cylinder body (35) through the weak connection structure, the penetrating end cover (31) is detachably assembled with the cylinder body (35) through a screw connection structure or spirally detachably assembled with the cylinder body (35).

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