CN104703416A - Field bus type signal distributor - Google Patents
Field bus type signal distributor Download PDFInfo
- Publication number
- CN104703416A CN104703416A CN201310654587.3A CN201310654587A CN104703416A CN 104703416 A CN104703416 A CN 104703416A CN 201310654587 A CN201310654587 A CN 201310654587A CN 104703416 A CN104703416 A CN 104703416A
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- double
- head
- hollow bolt
- arranges
- signal distributor
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Abstract
The invention discloses a field bus type signal distributor. A bus head fixing device is arranged on a bus inlet and comprises a double-head hollow bolt, a hollow nut, a fixing nut and a bus sleeve, a limiting protrusion is arranged between a first end and a second end of the outer side of the double-head hollow bolt, the first end of the double-head hollow bolt is arranged in the bus inlet through the fixing nut, the bus sleeve is arranged on the inner side of the double-head hollow bolt, an expansion rubber head is arranged at a position, close to the second end of the double-head hollow bolt, of the bus sleeve, the hollow nut is arranged at the second end of the double-head hollow bolt, a conical face is arranged inside the hollow nut and compresses the expansion rubber head when the hollow nut is tightly screwed on the double-head hollow bolt, and a bus inlet marking word is arranged at a position, above the bus inlet, on a terminal box. The bus head fixing device is arranged on the bus inlet, so that a bus head can be fixed tightly; a wrench is arranged on the other side face of a cuboid, so that the problem of demounting and mounting for temporary maintenance and inspection can be solved.
Description
Technical field
The present invention relates to a kind of signal to connect and signal assigned unit, specifically a kind of field bus type signal distributor.
Background technology
Fieldbus refers to the network based on the measurement in factory and the digital communication between control machine, also claims field network.Namely the communication between transducer, communication between various operating terminal and controller and controller is carried out the network of specialization.Originally the main body distribution of these machinery compartments is ON/OFF, contact point signal and analog signal, by the digitlization of communication, time division, multiplex, multiple spot are changed into as possibility, thus realizes high performance, highly reliableization, maintenance easy, saving distribution (sharing of distribution).
Signal distributor (one-in-and-two-out; one enters three goes out; one enters four goes out) be to RS485, CAN(CanOpen in automation control system) bus; HART bus; foundation fieldbus; the various industrial field bus signals such as Profibus bus, LonWorks bus carry out becoming the equipment sending, change, isolate, transmit; there is the various defencive functions such as lightning protection, overvoltage, overcurrent, waterproof be anti-interference; can coordinate with various industrial sensor or instrument; fetch parameter signal; isolation transmit transmits, and meets user's native monitoring teledata demand.This signal distributor be widely used in machinery, electrically, telecommunications, electric power, oil, chemical industry, iron and steel, sewage disposal, the field such as building construction the industry measurement and control system such as data acquisition, Signal transmissions conversion, PLC, DCS, be used for improving and replenishment system Mo Ni ∣/O pin function, increase the reliability of system suitability and site environment.
See the patent of invention open a kind of " a kind of field bus type signal distributor " that application number is 201320332842.8, its structure comprises signal distributor, and signal distributor is arranged in terminal box, terminal box is arranged respectively incoming line, line outlet and branch line mouth.When in use, maintenance is inconvenient, also the installation environment due to fieldbus signal distributor is comparatively complicated, the incoming line connection signal distributor of the end of a thread through terminal box is installed, if the end of a thread is pullled, can make to be subject to relative stress between signal distributor and the end of a thread, cause the end of a thread to unclamp, make equipment fault, great potential safety hazard can be caused what is more.
Moreover in prior art, the incoming line that terminal box comprises and other line mouth, conveniently can not find the position of incoming line, and new employee is when overhauling installation, and easy error differentiating, exists larger potential safety hazard.
Therefore, a kind of field bus type signal distributor of special needs, to solve problems of the prior art.
Summary of the invention
The object of the invention is to solve in prior art, the installation environment of fieldbus signal distributor is comparatively complicated, the end of a thread is through the incoming line connection signal distributor of terminal box, if the end of a thread is pullled, can make to be subject to relative stress between signal distributor and the end of a thread, cause the end of a thread to unclamp, make equipment fault, there is the defect of larger potential safety hazard, a kind of field bus type signal distributor is provided, solves problems of the prior art.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of field bus type signal distributor, comprise terminal box and be arranged on the signal distributor in terminal box, described terminal box comprises incoming line, described incoming line arranges thread-end fixer, described thread-end fixer comprises double-head hollow bolt, hollow nut, hold-down nut and line cover, between first end outside described double-head hollow bolt and the second end, spacing preiection is set, the first end of described double-head hollow bolt is arranged in incoming line by hold-down nut, the inner side of described double-head hollow bolt arranges line cover, described line cover arranges expansion glue head near the position of double-head hollow bolt second end, described hollow nut is arranged on the second end of double-head hollow bolt, the inside of described hollow nut arranges taper surface, when described hollow nut is tightened on double-head hollow bolt, the taper surface of hollow nut is pressed on expansion glue head, on described terminal box, the top of incoming line arranges incoming line and indicates word.
In the present invention, arrange stopper slot inside described double-head hollow bolt, described line puts and arranges spacing salient point, and described line cover is by spacing preiection and stopper slot and the clamping of double-head hollow bolt.
In the present invention, the sheathed annular seal circle of the first end of described double-head hollow bolt.
In the present invention, the first end outside described double-head hollow bolt and the end face cross section of spacing preiection arranged between the second end are hexagonal prismatic, and each water caltrop of described hexagonal prismatic arranges arc transition respectively.
In the present invention, the end face cross section of described hold-down nut is hexagonal prismatic, and each water caltrop of described hexagonal prismatic arranges arc transition respectively.
In the present invention, the arranged outside end face cross section of described hollow nut be hexagonal prismatic tighten portion, each water caltrop of described hexagonal prismatic arranges arc transition respectively.
In the present invention, described spacing preiection, hold-down nut and to tighten the maximum gauge in portion equal.
In the present invention, the shape of described terminal box is cuboid, and described incoming line is arranged on the first long side face of cuboid.
In the present invention, the second long side face of described cuboid arranges spanner groove, arranges spanner in described spanner groove.
Beneficial effect
A kind of field bus type signal distributor of the present invention, compared with prior art, by arranging thread-end fixer on incoming line, when the end of a thread of incoming line is connected with fieldbus signal distributor, the end of a thread can be fastened and fixed, and arranges spanner by the another side at cuboid, the dismounting problem of can solve temporary repair, checking, structure is simple, very practical, realizes object of the present invention.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
The structural representation of Fig. 2 fixture of the present invention;
The positional structure schematic diagram of Fig. 3 spanner groove of the present invention.
Wherein: 1, terminal box; 2, signal distributor; 3, incoming line; 4, fixture; 41, double-head hollow spiral; 411, first end; 412, the second end; 413, spacing preiection; 42, hollow nut; 421, portion is tightened; 43, hold-down nut; 5, expansion glue head; 6, annular seal circle; 7, spanner groove.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
Embodiment
As shown in Figures 1 to 3, Fig. 1 is structural representation of the present invention; Fig. 2 is the structural representation of fixture of the present invention; Fig. 3 is the positional structure schematic diagram of spanner groove of the present invention.
A kind of field bus type signal distributor, the signal distributor 2 comprising terminal box 1 and be arranged in terminal box 1, terminal box 1 comprises incoming line 3, incoming line 3 is arranged thread-end fixer 4, thread-end fixer 4 comprises double-head hollow bolt 41, hollow nut 42, hold-down nut 43 and line cover 44, between first end 411 outside double-head hollow bolt 41 and the second end 412, spacing preiection 413 is set, the first end of double-head hollow bolt 41 is arranged in incoming line 3 by hold-down nut 43, the inner side of double-head hollow bolt 41 arranges line cover 44, line cover 44 arranges expansion glue head 5 near the position of double-head hollow bolt 41 second end 412, hollow nut 42 is arranged on the second end 412 of double-head hollow bolt 41, the inside of hollow nut 42 arranges taper surface, on the outer wall of terminal box 1, the top of incoming line 3 arranges incoming line and indicates word (not shown), it is " incoming line " these 3 words that incoming line indicates word, accurately can find the position of incoming line.When hollow nut 42 is tightened on double-head hollow bolt 41, the taper surface of hollow nut 42 is pressed on expansion glue head 5, and taper surface by little for the diameter of expansion glue head 5 pressure, thus reaches the object be fixed incoming line 3 the end of a thread.
Stopper slot (not shown) is set inside double-head hollow bolt 41, line cover 44 arranges spacing salient point (not shown), line cover 44 is by spacing preiection and stopper slot and double-head hollow bolt 41 clamping, double-head hollow bolt 41 is generally made up of steel matter, line cover 44 is made up of plastic material, double-head hollow bolt 41 arranges draw-in groove, online cover 44 arranges spacing preiection, the cost of plastic material is well below the cost of firm material, gravity is also lighter, therefore by the mode of clamping, space can be saved on the one hand, on the other hand also can be greatly cost-saving, alleviate the weight of product.
The sheathed annular seal circle 6 of first end 411 of double-head hollow bolt 41, because the environment for use of fieldbus signal distributor is complicated, other object with invasion property such as water liquid is easily from the incoming line 3 inflow terminal box 1 of terminal box 1, the concept of annular seal circle 6 is that the global shape of sealing ring is consistent with the first end face 411 of double-head hollow bolt 41, be all circle, the end section of circular circular arc sealing ring 6 is also circular, when double-head hollow bolt 41 is installed, due to the thrust of bolt tightening, make circular arc sealing ring 6 can the wall contacts of terminal box 1 more closely, thus reach the effect of incoming line 3 fit sealing.
First end 411 outside double-head hollow bolt 41 and the end face cross section of spacing preiection 413 arranged between the second end 412 are hexagonal prismatic, each water caltrop of hexagonal prismatic arranges arc transition respectively, pass through die nut, can tighten double-head hollow bolt, because the diameter of incoming line is generally 15mm-30mm, therefore, the maximum gauge of hexagonal prismatic is 20mm-35mm, within the scope of this, hexagonal prismatic can adapt to more spanner, reaches the object of ease of assembly.
The end face cross section of hold-down nut 43 is hexagonal prismatic, each water caltrop of hexagonal prismatic arranges arc transition respectively, because the diameter of incoming line is generally 15mm-30mm, therefore, the maximum gauge of hexagonal prismatic is 20mm-35mm, within the scope of this, hexagonal prismatic can adapt to more spanner, reaches the object of ease of assembly.
The arranged outside end face cross section of hollow nut 42 is the portion of tightening 421 of hexagonal prismatic, each water caltrop of hexagonal prismatic arranges arc transition respectively, because the diameter of incoming line is generally 15mm-30mm, therefore, the maximum gauge of hexagonal prismatic is 20mm-35mm, within the scope of this, hexagonal prismatic can adapt to more spanner, reaches the object of ease of assembly.
Spacing preiection 413, hold-down nut 43 and to tighten the maximum gauge in portion 421 equal, make a product only just can assemble with a kind of spanner, reach object easy to use.
The shape of terminal box 1 is cuboid, and incoming line 3 is arranged on the first long side face of cuboid, is the effective execution mode of the present invention.
Second long side face of the terminal box 1 of cuboid arranges spanner groove 7, arranges spanner in spanner groove 7, and spanner is die nut, adopts the terminal box of cuboid, herein, reaches the object conveniently arranging spanner.
In the present invention, the inside of terminal box 1 is also arranged: signal isolation circuit, signal repeat circuit, lightning protection circuit, over-voltage over-current protection circuit, electric power management circuit.
Signal isolation circuit forms primarily of photoelectric isolating device, realizes the electrical isolation of prime signal and rear class signal, effectively cuts off because single hop fault causes overall device damage; Signal repeat circuit is based on the waveform shaping on signal isolation circuit basis and waveform enlarging function, the Signal transmissions of long distance, and the amplitude of waveform can be caused to reduce or signal exhaustion, and signal repeat circuit can the long range propagation ability of effective lifting means; Built-in lightning protection circuit forms primarily of multiple anti-thunder tube, and anti-thunder tube is connected in parallel between holding wire and ground wire, can effectively absorb the huge energy produced because of thunderbolt, thus reduces the infringement of being struck by lightning and causing whole circuit.Over-voltage over-current protection circuit is made up of multiple transient state killer tube and associated peripheral circuits, can the transient absorption outside that the is greater than 60V high pressure of altering pressure or introducing because of false wiring, thus avoids because high pressure causes all devices on whole circuit to damage; And overcurrent protection is mainly reflected in when the short circuit of branch line equipment, inner resettable fuse resistance can increase instantaneously because of short circuit, thus cuts off because short circuit causes mains power to interrupt; Electric power management circuit is primarily of device compositions such as lowering and stabilizing blood pressures, and this circuit provides reliable and stable DC voltage power supply can to branch line equipment.
Above-mentioned is can understand for ease of those skilled in the art and use the present invention to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (9)
1. a field bus type signal distributor, comprise terminal box and be arranged on the signal distributor in terminal box, described terminal box comprises incoming line, it is characterized in that: described incoming line arranges thread-end fixer, described thread-end fixer comprises double-head hollow bolt, hollow nut, hold-down nut and line cover, between first end outside described double-head hollow bolt and the second end, spacing preiection is set, the first end of described double-head hollow bolt is arranged in incoming line by hold-down nut, the inner side of described double-head hollow bolt arranges line cover, described line cover arranges expansion glue head near the position of double-head hollow bolt second end, described hollow nut is arranged on the second end of double-head hollow bolt, the inside of described hollow nut arranges taper surface, when described hollow nut is tightened on double-head hollow bolt, the taper surface of hollow nut is pressed on expansion glue head, on described terminal box, the top of incoming line arranges incoming line and indicates word.
2. a kind of field bus type signal distributor according to claim 1, it is characterized in that: inside described double-head hollow bolt, stopper slot is set, described line puts and arranges spacing salient point, and described line cover is by spacing preiection and stopper slot and the clamping of double-head hollow bolt.
3. a kind of field bus type signal distributor according to claim 1, is characterized in that: the sheathed annular seal circle of first end of described double-head hollow bolt.
4. a kind of field bus type signal distributor according to claim 1, it is characterized in that: the first end outside described double-head hollow bolt and the end face cross section of spacing preiection arranged between the second end are hexagonal prismatic, and each water caltrop of described hexagonal prismatic arranges arc transition respectively.
5. a kind of field bus type signal distributor according to claim 4, is characterized in that: the end face cross section of described hold-down nut is hexagonal prismatic, and each water caltrop of described hexagonal prismatic arranges arc transition respectively.
6. a kind of field bus type signal distributor according to claim 5, is characterized in that: the arranged outside end face cross section of described hollow nut be hexagonal prismatic tighten portion, each water caltrop of described hexagonal prismatic arranges arc transition respectively.
7. a kind of field bus type signal distributor according to claim 6, is characterized in that: described spacing preiection, hold-down nut and to tighten the maximum gauge in portion equal.
8. a kind of field bus type signal distributor according to claim 6, is characterized in that: the shape of described terminal box is cuboid, and described incoming line is arranged on the first long side face of cuboid.
9. a kind of field bus type signal distributor according to claim 8, is characterized in that: the second long side face of described cuboid arranges spanner groove, arranges spanner in described spanner groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654587.3A CN104703416A (en) | 2013-12-05 | 2013-12-05 | Field bus type signal distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654587.3A CN104703416A (en) | 2013-12-05 | 2013-12-05 | Field bus type signal distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104703416A true CN104703416A (en) | 2015-06-10 |
Family
ID=53350064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310654587.3A Pending CN104703416A (en) | 2013-12-05 | 2013-12-05 | Field bus type signal distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104703416A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07230848A (en) * | 1994-02-18 | 1995-08-29 | Nichifu Co Ltd | Connector for conductive linear body |
| CN1628225A (en) * | 2002-07-26 | 2005-06-15 | 安东-胡梅尔管理有限公司 | Threaded sleeve, matching sleeveand clamping screw joint of clamping insertion |
| CN2750536Y (en) * | 2004-12-03 | 2006-01-04 | 楼方禄 | Cable fixing terminal |
| CN200973003Y (en) * | 2006-08-30 | 2007-11-07 | 林振能 | Cable fixing joint |
| CN101248381A (en) * | 2005-07-27 | 2008-08-20 | 康宁光缆系统有限公司 | Sealing and retaining cable attachment for telecommunications closures |
| CN201130839Y (en) * | 2007-12-12 | 2008-10-08 | 全冠企业有限公司 | Dead joint for cabled yarn and surge tube |
| CN101328925A (en) * | 2008-07-31 | 2008-12-24 | 宁波甬嘉变压器有限公司 | Hollow bolt with double nuts structure |
| CN101363469A (en) * | 2008-07-10 | 2009-02-11 | 宁波东港紧固件制造有限公司 | Hollow bolt with pad |
-
2013
- 2013-12-05 CN CN201310654587.3A patent/CN104703416A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07230848A (en) * | 1994-02-18 | 1995-08-29 | Nichifu Co Ltd | Connector for conductive linear body |
| CN1628225A (en) * | 2002-07-26 | 2005-06-15 | 安东-胡梅尔管理有限公司 | Threaded sleeve, matching sleeveand clamping screw joint of clamping insertion |
| CN2750536Y (en) * | 2004-12-03 | 2006-01-04 | 楼方禄 | Cable fixing terminal |
| CN101248381A (en) * | 2005-07-27 | 2008-08-20 | 康宁光缆系统有限公司 | Sealing and retaining cable attachment for telecommunications closures |
| CN200973003Y (en) * | 2006-08-30 | 2007-11-07 | 林振能 | Cable fixing joint |
| CN201130839Y (en) * | 2007-12-12 | 2008-10-08 | 全冠企业有限公司 | Dead joint for cabled yarn and surge tube |
| CN101363469A (en) * | 2008-07-10 | 2009-02-11 | 宁波东港紧固件制造有限公司 | Hollow bolt with pad |
| CN101328925A (en) * | 2008-07-31 | 2008-12-24 | 宁波甬嘉变压器有限公司 | Hollow bolt with double nuts structure |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |