CN114039316B - Wall bushing and tubular bus connecting and supporting hardware fitting - Google Patents
Wall bushing and tubular bus connecting and supporting hardware fitting Download PDFInfo
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- CN114039316B CN114039316B CN202110887644.7A CN202110887644A CN114039316B CN 114039316 B CN114039316 B CN 114039316B CN 202110887644 A CN202110887644 A CN 202110887644A CN 114039316 B CN114039316 B CN 114039316B
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- wall bushing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/061—Tubular casings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
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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 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; a first elastic piece and a second elastic piece are arranged between the first connecting piece and the second connecting piece; when the first connecting piece and the second connecting piece slide in opposite directions, the wall-penetrating sleeve and tubular bus connecting and supporting hardware fitting is in assembly connection with the tubular bus through the tubular bus clamp, so that a sliding rotary table is prevented from being designed to be matched with the tubular bus, and the requirement on the connecting hardware fitting is lowered.
Description
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 support 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 support hardware fitting comprises a rotary connecting device, the rotary connecting device comprises a fixed rod, one end of the fixed rod is connected with two fixed disks which are oppositely buckled, the other end of the fixed 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 a hinge shaft, the fixed disks are used for being fixedly connected with the end part of a tube 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 connection support hardware fitting, and aims to solve the technical problem that when a corresponding hardware fitting is installed between a wall bushing and a tubular bus in the prior art, a sliding rotary table needs to be designed to be matched with the tubular bus, so that the requirement on the connection hardware fitting is high.
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 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;
a first elastic piece and a second elastic piece are arranged between the first connecting piece and the second connecting piece;
when the first connecting piece and the second connecting piece slide in opposite directions, the first elastic piece is used for providing elastic constraint force for preventing the first connecting piece and the second connecting piece from sliding in opposite directions;
when the first connecting piece and the second connecting piece slide back to back, the second elastic piece is used for providing elastic constraint force for preventing the first connecting piece and the second connecting piece from sliding back to back;
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 in which relative sliding occurs between the hardware fitting and the tubular bus, in the wall bushing and tubular bus connecting and supporting hardware 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 holding clamps can be realized through relative sliding of the two connecting pieces in the left and right directions, namely, the relative sliding occurs inside the connecting and supporting hardware fitting, so that the wall bushing is prevented from being influenced by the 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 on the connecting hardware 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 holding clamp, 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 tubular bus and the wall bushing can be prevented from being damaged by the impact of the external force. In addition, the first elastic piece and the second elastic piece are arranged between the first connecting piece and the second connecting piece, so that when the connecting and supporting hardware fitting is impacted by external force, the first connecting piece and the second connecting piece can slide in the opposite direction or in the opposite direction, the elastic pieces can provide buffering and shock absorption, rigid impact is converted into flexible impact, and the wall bushing is effectively prevented from being damaged by impact load.
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 along the left-right direction, and the guide rod is slidably supported and assembled in the guide cylinder.
The beneficial effects are that: the structure design is favorable for ensuring the stable operation of the sliding support of the knot and is more convenient for the assembly and maintenance of the equipment.
As a further improvement, the first elastic member and the second elastic member are located in the guide cylinder.
The beneficial effects are that: the first elastic piece and the second elastic piece are located in the guide cylinder, so that the elastic piece is more stable when stressed, the cylinder body can also protect the elastic piece, and the service life of the elastic piece is prolonged.
As a further improvement, the first elastic member and the second elastic member are both compression springs, the peripheral surface of the guide rod is provided with a stopping flange, the first elastic member and the second elastic member are located on two sides of the stopping flange in the left-right direction, and one ends of the first elastic member and the second elastic member facing the stopping flange are matched with the stopping flange in a pushing manner.
The beneficial effects are that: the first elastic piece and the second elastic piece are both compression springs, and the outer peripheral surface of the guide rod is provided with a stop flange. The design makes the pressure spring assembly when the guide cylinder, need not with guide bar or guide cylinder fixed connection, makes things convenient for the installation and the maintenance of elastic component.
As a further improvement, the guide rod and/or the guide cylinder are/is provided with a weak connection structure, 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 bearing limit of the weak connection structure, the corresponding weak connection structure is disconnected, so that the connection support 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, 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.
The beneficial effects are 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.
The beneficial effects are that: the weak connection structure adopts the design of latch, joint adaptation portion and elastic element, can make the 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 that after the effort reaches the setting value, can not throw off smoothly between joint portion and the joint adaptation portion, the influence is to the sheathed tube protection effect of wearing the wall. 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.
The beneficial effects are 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 adaptive part is an annular flange, and the clamping part on the clamping tooth is of a hook head structure.
The beneficial effects are 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, the universal connecting structure between the connecting end cover and the corresponding holding clamp is a joint bearing, the joint bearing comprises an inner ring and an outer ring which are used in a matched mode, a bearing seat is fixedly installed on the 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.
The beneficial effects are 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.
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 A of FIG. 2;
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 seat 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. a first pressure spring; 23. an anti-drop flange; 24. a second pressure spring; 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 nut clamping mounting hole; 74. a bolt mating hole; 8. clamping the pipe bus; 9. a tubular busbar; 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 further described in 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 article that comprises the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the connection support fitting for the wall bushing and the tubular bus provided by the invention:
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. Be equipped with first elastic component and second elastic component between first connecting piece and the second connecting piece, the elastic component can provide the buffering effect of moving away to avoid possible earthquakes, and the corresponding slip carousel of design has been avoided according to different pipe generating lines through the sliding fit who adopts first connecting piece and second connecting piece to this embodiment, 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 clasping clamp 1 and a pipe mother clasping clamp 8, the sleeve terminal clasping clamp 1 and the pipe mother clasping 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 clasping clamp 1 and the pipe mother clasping 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 in 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 in 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 in the left-right direction, and the guide rod 2 is slidably supported and assembled in the guide cylinder 3.
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, a retaining flange 23 is formed on the corresponding guide rod 2, the radial dimension of the retaining flange 23 is larger than that of the guide hole 36, and the retaining flange 23 is used for retaining and matching with a retaining device passing through the end cap 31. A set screw assembly hole 38 is further formed in the through end cover 31 for engaging a set screw to mount the through end cover 31 to the left end of the cylinder 35, so that the through end cover 31 is detachably assembled with the cylinder 35 by a screw connection structure.
In this embodiment, the first elastic member and the second elastic member are disposed between the guide cylinder 3 and the guide rod 2, the first elastic member employs a first pressure spring 22, the second elastic member employs a second pressure spring 24, the first pressure spring 22 and the second pressure spring 24 are both located in the guide cylinder 3, a stop flange is disposed on the outer peripheral surface of the corresponding guide rod 2, the first pressure spring 22 is located on the right side of the stop flange, the second pressure spring 24 is located on the left side of the stop flange, and one ends of the first pressure spring 22 and one end of the second pressure spring 24 facing the stop flange are both in pushing fit with the stop flange. One end of the first compression spring 22 and one end of the second compression spring 24, which face away from the blocking flange, form a pushing fit with the corresponding end cover on the cylinder 35, in this embodiment, the anti-disengagement flange can be used as the blocking flange 23, and the anti-disengagement flange 23 forms a pushing fit with both the anti-disengagement and blocking fit through the end cover 31 and the two compression springs.
In this embodiment, when the guide cylinder 3 and the guide rod 2 slide toward each other, the first pressure spring 22 is used to provide an elastic restraining force for preventing the guide cylinder 3 and the guide rod 2 from sliding toward each other. When the guide cylinder 3 slides back to back with the guide rod 2, the second compression spring 24 is used for providing elastic constraint force for preventing the guide cylinder 3 from sliding back to back with the guide rod 2.
As shown in fig. 2, be equipped with weak connection structure on guide cylinder 3, embrace when the sleeve pipe terminal and press from both sides 1 and the female clamp 8 of embracing of pipe and move back to back in the left and right sides direction, and the pulling force that two connecting pieces bore reaches weak connection structure and bears the limit, weak connection structure disconnection to make the connection support device disconnection, connection support device became invalid this moment, sleeve pipe terminal armful press from both sides 1 and the female clamp 8 of embracing of pipe only through conductive strip 10 conductive connection, the wall bushing does not receive connection support device's constraint, be in relative 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. 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 weakened connection between the mounting part and the release element comprises a latch 33, a snap-fit and an elastic 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 fastening portion is a hook 40, and the hook 40 is shaped like a hook head. 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 end cover connecting shaft 5 on the right side of the guide cylinder 3. 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 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 can be prevented from being damaged. Still be equipped with first elastic component and second elastic component between guide bar 2 and guide cylinder 3, can further improve the buffering effect of moving away to avoid possible earthquakes of gold utensil. 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 tubular busbar connection support fitting that this embodiment provided embraces through the tubular bus and presss from both sides 8 and be connected with tubular bus 9, has avoided the design slip carousel in order to with tubular bus adaptation, has solved the technical problem that requires highly to link the fitting.
The specific embodiment 2 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 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 universal joint structure is realized by using a joint bearing. In this embodiment, the universal connection structure can be implemented by a universal coupling.
The specific embodiment 4 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention comprises:
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, the other supporting plate is provided with a round hole, when the two supporting plates are guided and attached, the long slot and the round hole are correspondingly communicated, and a pin shaft is inserted in the long slot and the round hole so that the long slot and the round hole are connected through the pin shaft, and the pin shaft can slide along the long slot.
The specific embodiment 5 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 elastic member and the second elastic member are both compression springs. In this embodiment, the first elastic member and the second elastic member are both tension springs, or one of the first elastic member and the second elastic member is a tension spring, and the other elastic member is a compression spring.
The specific embodiment 6 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 present embodiment is different from embodiment 1 in that: in embodiment 1, the first elastic member and the second elastic member both adopt a single compression spring, in this embodiment, the first elastic member includes a plurality of compression springs, the second elastic member includes a plurality of compression springs, specifically, a radial dimension of the guide cylinder adopted is greater than a radial dimension of the guide rod, so that when the guide rod is installed in the guide cylinder, a circumferential gap between the guide rod and the guide cylinder is greater than the radial dimension of the compression springs, at this time, a plurality of installation positions are uniformly distributed in the circumferential direction on the right side surface of the stop flange for correspondingly installing the first elastic member, and a plurality of installation positions are uniformly distributed in the circumferential direction on the left side surface of the stop flange for correspondingly installing the second elastic member.
The specific embodiment 7 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 embodiment 1, a weak connection structure is formed between the connection end cover on the right side of the guide cylinder and the cylinder body. In this embodiment, be weak connection structure between the left end cover of passing of guide cylinder and the barrel, perhaps be weak connection structure between the end cover of guide cylinder left and right sides and the barrel. The automatic release structure can be specifically manufactured by referring to example 1.
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 example 1, it differs from example 1 mainly in that: the second connecting piece 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 necking down structure, the intensity of this necking down structure position department will be less than the length of guide bar other positions, and, the extreme effort that this necking down structure of special design bore is less than the effort is born in the wall bushing's design, thus, the circumference recess forms weak connection structure promptly, when two embrace the clamp on the right and left side back of the body motion of going back to back in the upper left, the guide bar bears the pulling force with the guide cylinder and is greater than the time limit that bears of this circumference recess, the guide bar breaks off in circumference recess department, make the connection strutting arrangement disconnection.
The specific embodiment 9 of the connection support hardware fitting for the wall bushing and the tubular bus provided by the invention:
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 along circumference distribution for 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 bearing limit must be less than the design limit of wall bushing, when the guide cylinder bears great pulling force, must follow weak connection structure department earlier and break off.
The specific embodiment 10 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: the first connecting piece and the second connecting piece are matched through sliding supports of the guide rod and the guide cylinder, and the weak connecting structure is located on the guide cylinder. In this embodiment, first connecting piece adopts embodiment 4'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 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 example 1, it differs from example 1 mainly in 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 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, 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 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 anti-slip flange can be used as a stopping flange, and in this embodiment, the anti-slip flange cannot be used as a stopping flange, the stopping flange is located on the right side of the anti-slip flange, the radial dimension of the stopping flange is greater than that of the anti-slip flange, and the radial dimension of the second compression spring is greater than that of the anti-slip flange and is sleeved outside the anti-slip flange.
The specific embodiment 14 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 15 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 pipe nut holding clamp, the connecting end cover is provided with a corresponding bearing seat for fixedly mounting the outer ring, a connecting shaft or a connecting frame may be fixedly assembled in the pipe nut holding clamp, and the connecting shaft or the connecting frame may be fixedly assembled with the inner ring.
The specific embodiment 16 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 engaging portion of the engaging tooth on the connecting end cap is a hook structure, the engaging adapting portion on the corresponding cylinder is a protrusion, and the engaging stop is realized by the protruding side and the step structure formed by the corresponding cylinder. In this embodiment, the joint portion of latch is sunken on the link lid, and sunken be the arc structure, and this moment, joint adaptation portion on the barrel still adopts protrudingly, should protruding and corresponding sunken identical inserting of joining 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 (9)
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;
a first elastic piece and a second elastic piece are arranged between the first connecting piece and the second connecting piece;
when the first connecting piece and the second connecting piece slide in opposite directions, the first elastic piece is used for providing elastic constraint force for preventing the first connecting piece and the second connecting piece from sliding in opposite directions;
when the first connecting piece and the second connecting piece slide back to back, the second elastic piece is used for providing elastic constraint force for preventing the first connecting piece and the second connecting piece from sliding back to back;
moreover, a universal connection structure is 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 is used for enabling the pipe bus (9) and the wall bushing to swing relatively;
one of the first connecting piece and the second connecting piece is a guide rod (2), and the other connecting piece is a guide cylinder (3);
a weak connection structure is arranged on the guide cylinder (3);
the guide cylinder (3) comprises a cylinder body (35) and two end covers;
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 of the barrel body 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 (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 through-wall sleeve and tubular busbar connection support fitting according to claim 1, characterized in that the guide rod (2) and the guide cylinder (3) both extend in the left-right direction, and the guide rod (2) is slidably supported and fitted in the guide cylinder (3).
3. The through-wall sleeve and tubular busbar connecting support fitting according to claim 2, wherein the first elastic piece and the second elastic piece are located in the guide cylinder (3).
4. The wall bushing and tubular busbar connection support fitting of claim 3, wherein the first elastic member and the second elastic member are both compression springs, the outer circumferential surface of the guide rod (2) is provided with a stop flange, the first elastic member and the second elastic member are located on two sides of the stop flange in the left-right direction, and one ends of the first elastic member and the second elastic member facing the stop flange are in pushing fit with the stop flange.
5. The wall bushing and tubular busbar connection support fitting of claim 2 or 3, wherein 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 connection structure bearing limit, the corresponding weak connection structure is disconnected, so that the connection support device is disconnected.
6. The wall bushing and tubular busbar connection support fitting of claim 5, wherein the two end covers are a penetrating end cover and a connecting end cover, the connecting end cover 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, an anti-falling flange (23) is arranged on the guide rod (2), the anti-falling flange (23) is used for being matched with the anti-falling and blocking of the penetrating end cover, and when the guide cylinder (3) is provided with the weak connection structure, the penetrating end cover and/or the connecting end cover are fixedly connected with the cylinder body (35) through the corresponding weak connection structure on the guide cylinder (3).
7. The wall bushing and tubular busbar connection support fitting of claim 1, 2 or 3, 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 used for mounting the annular spring (34).
8. The wall bushing and tubular busbar connection support fitting of claim 1, 2 or 3, wherein the clamping adapting part is an annular flange (39), and the clamping part on the clamping tooth (33) is of a hook head structure.
9. The wall bushing and tubular busbar connection support fitting of claim 6, wherein the connection end cover is connected with a corresponding clamp in a swinging mode through the universal connection structure, the universal connection structure between the connection end cover and the corresponding clamp is a joint bearing (6), the joint bearing (6) comprises an inner ring (61) and an outer ring (62) which are matched in use, a bearing seat (7) is fixedly installed on the corresponding clamp connected with the connection end cover (32), the outer ring (62) is fixedly installed on the bearing seat (7), a connection shaft (5) is fixedly assembled on the connection end cover (32) through a threaded connection structure, and the connection shaft (5) and the inner ring (61) are fixedly assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887644.7A CN114039316B (en) | 2021-08-03 | 2021-08-03 | Wall bushing and tubular bus connecting and supporting hardware fitting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887644.7A CN114039316B (en) | 2021-08-03 | 2021-08-03 | Wall bushing and tubular bus connecting and supporting hardware fitting |
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| Publication Number | Publication Date |
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| CN114039316A CN114039316A (en) | 2022-02-11 |
| CN114039316B true CN114039316B (en) | 2023-03-31 |
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| CN202110887644.7A Active CN114039316B (en) | 2021-08-03 | 2021-08-03 | Wall bushing and tubular bus connecting and supporting hardware fitting |
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| CN202268606U (en) * | 2011-10-25 | 2012-06-06 | 南京线路器材厂 | Current passage fitting bridging wall bushing and tubular bus and used for 400 kV converter station |
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| CN114039316A (en) | 2022-02-11 |
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