CN104410007A - Anti-falling convenient pin remover - Google Patents
Anti-falling convenient pin remover Download PDFInfo
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- CN104410007A CN104410007A CN201410674074.3A CN201410674074A CN104410007A CN 104410007 A CN104410007 A CN 104410007A CN 201410674074 A CN201410674074 A CN 201410674074A CN 104410007 A CN104410007 A CN 104410007A
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Abstract
An anti-falling convenient pin remover comprises a connecting rod, the top of which is connected with one end of a U-shaped connecting rod; the other end of the U-shaped connecting rod is of a conical structure; an insulated bushing is sleeved at the middle part of the connecting rod and an anti-falling ring is fixed at one side of the connecting rod. The end of the pin recover is of a conical structure and can be easily inserted in a single insulator; when the single insulator is replaced and the pin is assembled/disassembled, the anti-falling convenient pin remover solves problems of increasing operator's working strength and working time, resulting from multiple repeated operations caused by operator's low success rate of assembling/disassembling the insulator pin at the first time. The anti-falling ring is arranged at one side of the anti-falling convenient pin remover, so that a rope can be conveniently twisted on the anti-falling ring and the falling of the anti-falling ring caused by the drop of the rope is avoided. The anti-falling convenient pin remover has the advantages of simple and compact structure, low manufacturing cost and convenience in use.
Description
Technical field
The present invention relates to a kind of split-pin device, specifically the convenient split-pin device of a kind of fall arrest.
Background technology
In the process changing monolithic insulator dress write off, split-pin device end is blunt nosed, end area is large, not easily the end of split-pin device is inserted in monolithic insulator, during operating personnel's dismounting insulator pin, one step completed success rate is low, need repeatedly repetitive operation, add person works's intensity and activity duration; Tradition split-pin device does not have falling proof device, and split-pin device is easily slipped out of the hand from falling from high altitude, constitutes great hidden danger to the safety of operating personnel.Rope is just tied up on split-pin device by the anti-fall measure of tradition split-pin device, and the operating time is long, and rope easily comes off.
Summary of the invention
The object of this invention is to provide a kind of live line working remote control glider, when can solve dismounting insulator pin, low, the traditional split-pin device of one-time success rate does not have falling proof device, and split-pin device is easily slipped out of the hand from the problem of falling from high altitude.
The present invention for achieving the above object, be achieved through the following technical solutions: the convenient split-pin device of a kind of fall arrest, comprise connecting rod, the top of connecting rod connects one end of U-shaped connecting rod, the other end of U-shaped connecting rod is conical structure, the middle part of connecting rod is set with insulating case, and the side of connecting rod is fixedly installed anti-pendant ring; Insulating case 11 is with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 30-40 part, polyurethane rubber 35-45 part, ethylene propylene diene rubber 20-30 part, antioxidant 4020 2-4 part, reinforcing agent 2-10 part, three (2-chloroethyl) phosphate 10-15 part, magnesium oxide 5-8 part, zinc oxide 10-15 part, ethylene thiourea 3-7 part and calcium oxide 2-5 part; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1.
The preparation method of described insulating case 11 comprises the following steps: parts by weight are the chlorosulfonated polyethylene rubber of 30-40 part by (1), banbury banburying 2-4 minute is put in the polyurethane rubber of 35-45 part and the ethylene propylene diene rubber mixing of 20-30 part, and banburying temperature is 90-100 DEG C;
(2) continue in step (1) described banbury, to add the antioxidant 4020 that parts by weight are 2-4 part, the reinforcing agent of 2-10 part, the magnesium oxide of 5-8 part, the zinc oxide of 10-15 part, the ethylene thiourea of 3-7 part and the calcium oxide of 2-5 part, continue banburying 5-8 minute; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1;
(3) adjust mill temperature 40-45 DEG C, the raw material after step (2) banburying is opened refining 4-8 minute, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10-15 part, thin-pass 2-5 time, obtains insulating case.
The middle part of described connecting rod arranges the first through hole and the second through hole, first through hole is positioned at the bottom of the second through hole, first through hole and the second through hole are equipped with U-shaped fixed lever, two parallel bars of U-shaped fixed lever are inserted into the first through hole and the second through hole respectively, one end of U-shaped fixed lever is provided with screw thread, the end that U-shaped fixed lever arranges screw thread is equipped with butterfly nut cooperation. and described connecting rod is provided with screw, and screw coordinates with butterfly bolt, and butterfly bolt is provided with third through-hole.Described insulating case is rectangle after stretching, wherein a limit arranges several vertically disposed hook, what the outside on another limit of the correspondence of insulating case arranged that several are vertically arranged in order respectively buckles bar, and every bar buckles on bar and vertically arranges several buckling, and buckles and coordinates with corresponding hook.
The invention has the advantages that: split-pin device end of the present invention is conical structure, can be easy to insert in monolithic insulator, avoid in the process changing monolithic insulator dress write off, during operating personnel's dismounting insulator pin, one-time success rate is low, cause repeatedly repetitive operation, add the problem of person works's intensity and activity duration.Side of the present invention is provided with anti-pendant ring, can be wrapped in anti-pendant ring by rope very easily, avoids rope and comes off anti-pendant ring is fallen.The present invention also has advantage compact, cheap for manufacturing cost and easy to use simple for structure.The formula of insulating case of the present invention adopts chlorosulfonated polyethylene rubber, polyurethane rubber and ethylene propylene diene rubber to carry out composite according to specified weight ratio, add the rubber chemicals gained of proper proportion, the fill a prescription rubber tube of gained of the present invention is adopted not only to have heat-resisting, cold-resistant, the oil resistant of existing rubber tube and ageing-resistant advantage, and good insulating, resistivity reaches 109 ohmcm levels, elasticity is large, tensile strength is large, percentage elongation is high, can be applied to and have in the rubber of particular/special requirement to insulating properties and elasticity; Reinforcing agent and three (2-chloroethyl) phosphate of white carbon and aluminium hydroxide mixing gained is added in formula of the present invention, the fire resistance of rubber tube can not only be increased, increase the plasticity of rubber tube, temperature when reducing compound viscosity and open refining, optimized production process condition, and the hot strength of rubber tube, percentage elongation and resistance to wear can be improved.Present invention also offers the preparation technology of insulating case, preparation process is few, and flow process is easy to operation, is convenient to suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is I structure for amplifying schematic diagram of Fig. 1.
Mark illustrates: 1U type connecting rod 2 anti-pendant ring 3 connecting rod 4 butterfly bolt 5 third through-hole 6 screw 7 first through hole 8U type fixed lever 9 second through hole 10 butterfly nut 11 insulating case 12 is linked up with 13 and buckled bar 14 and buckle.
Embodiment
The convenient split-pin device of fall arrest, as shown in Figure 1 and Figure 2, comprises connecting rod 3, the top of connecting rod 3 connects one end of U-shaped connecting rod 1, the other end of U-shaped connecting rod 1 is conical structure, and the middle part of connecting rod 3 is set with insulating case 11, and the side of connecting rod 3 is fixedly installed anti-pendant ring 2.The middle part of described connecting rod 3 arranges the first through hole 7 and the second through hole 9, first through hole 7 is positioned at the bottom of the second through hole 9, first through hole 7 and the second through hole 9 are equipped with U-shaped fixed lever 8, two parallel bars of U-shaped fixed lever 8 are inserted into the first through hole 7 and the second through hole 9 respectively, one end of U-shaped fixed lever 8 is provided with screw thread, the end that U-shaped fixed lever 8 arranges screw thread is equipped with butterfly nut 10 and coordinates. and described connecting rod 3 is provided with screw 6, screw 6 coordinates with butterfly bolt 4, and butterfly bolt 4 is provided with third through-hole 5.It is rectangle after described insulating case 11 stretches, wherein a limit arranges several vertically disposed hook 12, what the outside on another limit of the correspondence of insulating case 11 arranged that several are vertically arranged in order respectively buckles bar 13, every bar buckles bar 13 vertically arranges and severally buckles 14, buckles 14 and coordinates with corresponding hook 12.Insulating case 11 easy accessibility, be convenient to change, can adjust according to the diameter of connecting rod 3, ensure that insulating case 11 can closely coordinate with connecting rod 3, avoid skidding, thus improving the fail safe of use procedure, multiple hook 12 increases with the cooperation fastness buckling 14, avoids single loosening to cause entirety to come off.The present invention in use, first being interrupted by the taper shape of U-shaped connecting rod 1 inserts in monolithic insulator, the present invention is connected with monolithic insulator, because U-shaped connecting rod of the present invention is tip, therefore easily the arrow of U-shaped connecting rod can be inserted the inside of insulator, when needs quick attach cable, only rope need be wrapped in anti-pendant ring 2, when rope needs to fixedly secure on the convenient split-pin device of fall arrest, only then rope need be tightened butterfly bolt 4 through third through-hole 5, butterfly bolt 4 can allow staff just can tighten easily without the need to spanner, rope can firmly be fixed on split-pin device by such fixing means.When rope cross slightly cannot through third through-hole 5 time, only need by rope through U-shaped fixed lever 8, then tighten butterfly nut 10, just rope can be fixedly secured on the convenient split-pin device of fall arrest, such fixed form can fix thicker rope.Split-pin device end of the present invention is conical structure, can be easy to insert in monolithic insulator, avoid in the process changing monolithic insulator dress write off, during operating personnel's dismounting insulator pin, one-time success rate is low, cause repeatedly repetitive operation, add the problem of person works's intensity and activity duration.Side of the present invention is provided with anti-pendant ring 2, can be wrapped in by rope in anti-pendant ring 2 very easily, avoids rope and comes off anti-pendant ring is fallen.The present invention also has advantage compact, cheap for manufacturing cost and easy to use simple for structure.
Insulating case 11 is with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 30-40 part, polyurethane rubber 35-45 part, ethylene propylene diene rubber 20-30 part, antioxidant 4020 2-4 part, reinforcing agent 2-10 part, three (2-chloroethyl) phosphate 10-15 part, magnesium oxide 5-8 part, zinc oxide 10-15 part, ethylene thiourea 3-7 part and calcium oxide 2-5 part; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1.
For realizing object of the present invention further, can also by the following technical solutions:
Preferably, a kind of insulating case, with parts by weight, consists of the following composition: chlorosulfonated polyethylene rubber 35 parts, polyurethane rubber 38 parts, ethylene propylene diene rubber 26 parts, antioxidant 4020 3 parts, reinforcing agent 8 parts, three (2-chloroethyl) phosphate 10 parts, 6 parts, magnesium oxide, 12 parts, zinc oxide, ethylene thiourea 5 parts and 4 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1.
The present invention also comprises a kind of preparation method of insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 30-40 part, banbury banburying 2-4 minute is put in the polyurethane rubber of 35-45 part and the ethylene propylene diene rubber mixing of 20-30 part, and banburying temperature is 90-100 DEG C;
(2) continue in step (1) described banbury, to add the antioxidant 4020 that parts by weight are 2-4 part, the reinforcing agent of 2-10 part, the magnesium oxide of 5-8 part, the zinc oxide of 10-15 part, the ethylene thiourea of 3-7 part and the calcium oxide of 2-5 part, continue banburying 5-8 minute; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1;
(3) adjust mill temperature 40-45 DEG C, the raw material after step (2) banburying is opened refining 4-8 minute, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10-15 part, thin-pass 2-4 time, obtains insulating case.
The preparation method of preferred a kind of insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 35 parts, the ethylene propylene diene rubber mixing of the polyurethane rubber of 38 parts and 26 parts puts into banbury banburying 3 minutes, and banburying temperature is 95 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 3 parts, the reinforcing agent of 8 parts, the magnesium oxide of 6 parts, the zinc oxide of 12 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 5 parts and 4 parts, continue banburying 5-8 minute; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1;
(3) adjust mill temperature 44 DEG C, the raw material after step (2) banburying is opened refining 6 minutes, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10 parts, thin-pass 4 times, obtains insulating case.
Embodiment 1
A kind of insulating case, with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 30 parts, polyurethane rubber 35 parts, ethylene propylene diene rubber 20 parts, antioxidant 4020 2 parts, reinforcing agent 2 parts, three (2-chloroethyl) phosphate 10 parts, 5 parts, magnesium oxide, 10 parts, zinc oxide, ethylene thiourea 3 parts and 2 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2:1.
Embodiment 2
A kind of insulating case, with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 40 parts, polyurethane rubber 45 parts, ethylene propylene diene rubber 30 parts, antioxidant 4020 4 parts, reinforcing agent 10 parts, three (2-chloroethyl) phosphate 15 parts, 8 parts, magnesium oxide, 15 parts, zinc oxide, ethylene thiourea 7 parts and 5 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 4:1.
Embodiment 3
A kind of insulating case, with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 34 parts, polyurethane rubber 38 parts, ethylene propylene diene rubber 28 parts, antioxidant 4020 3 parts, reinforcing agent 6 parts, three (2-chloroethyl) phosphate 12 parts, 7 parts, magnesium oxide, 13 parts, zinc oxide, ethylene thiourea 6 parts and 3 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1.
Embodiment 4
A kind of insulating case, with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 35 parts, polyurethane rubber 38 parts, ethylene propylene diene rubber 26 parts, antioxidant 4020 3 parts, reinforcing agent 8 parts, three (2-chloroethyl) phosphate 10 parts, 6 parts, magnesium oxide, 12 parts, zinc oxide, ethylene thiourea 5 parts and 4 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1.
Embodiment 5
A preparation method for insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 30 parts, the ethylene propylene diene rubber mixing of the polyurethane rubber of 35 parts and 20 parts puts into banbury banburying 2 minutes, and banburying temperature is 90 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 2 parts, the reinforcing agent of 2 parts, the magnesium oxide of 5 parts, the zinc oxide of 10 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 3 parts and 2 parts, continue banburying 5 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2:1;
(3) adjust mill temperature 40 DEG C, the raw material after step (2) banburying is opened refining 4 minutes, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10 parts, thin-pass 2 times, obtains insulating case.
Embodiment 6
A preparation method for insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 40 parts, banbury banburying 2-4 minute is put in the ethylene propylene diene rubber mixing of the polyurethane rubber of 45 parts and 30 parts, and banburying temperature is 90-100 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 4 parts, the reinforcing agent of 10 parts, the magnesium oxide of 8 parts, the zinc oxide of 15 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 7 parts and 5 parts, continue banburying 8 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 4:1;
(3) adjust mill temperature 45 C, the raw material after step (2) banburying is opened refining 8 minutes, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 15 parts, thin-pass 4 times, obtains insulating case.
Embodiment 7
A preparation method for insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 34 parts, the ethylene propylene diene rubber mixing of the polyurethane rubber of 38 parts and 28 parts puts into banbury banburying 3 minutes, and banburying temperature is 94 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 3 parts, the reinforcing agent of 6 parts, the magnesium oxide of 7 parts, the zinc oxide of 13 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 6 parts and 3 parts, continue banburying 6 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1;
(3) adjust mill temperature 42 DEG C, the raw material after step (2) banburying is opened refining 5 minutes, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 12 parts, thin-pass 2-4 time, obtains insulating case.
Embodiment 8
A preparation method for insulating case, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 35 parts, the ethylene propylene diene rubber mixing of the polyurethane rubber of 38 parts and 26 parts puts into banbury banburying 3 minutes, and banburying temperature is 95 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 3 parts, the reinforcing agent of 8 parts, the magnesium oxide of 6 parts, the zinc oxide of 12 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 5 parts and 4 parts, continue banburying 5-8 minute; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1;
(3) adjust mill temperature 44 DEG C, the raw material after step (2) banburying is opened refining 6 minutes, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10 parts, thin-pass 4 times, obtains insulating case.
Comparative example 1
A kind of rubber tube, with parts by weight, consists of the following composition: chlorosulfonated polyethylene rubber 30 parts, polyurethane rubber 35 parts, antioxidant 4020 2 parts, reinforcing agent 2 parts, 5 parts, magnesium oxide, 10 parts, zinc oxide, ethylene thiourea 3 parts and 2 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2:1;
A preparation method for rubber tube, comprises the following steps:
(1) be that the chlorosulfonated polyethylene rubber of 30 parts and the polyurethane rubber mixing of 35 parts put into banbury banburying 2 minutes by parts by weight, banburying temperature is 90 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 2 parts, the reinforcing agent of 2 parts, the magnesium oxide of 5 parts, the zinc oxide of 10 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 3 parts and 2 parts, continue banburying 5 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2:1;
(3) adjust mill temperature 40 DEG C, the raw material after step (2) banburying is opened refining 4 minutes, blanking cools, then drops in mill, and thin-pass 2 times, obtains insulating case.
Comparative example 2
A kind of rubber tube, with parts by weight, consists of the following composition: chlorosulfonated polyethylene rubber 40 parts, ethylene propylene diene rubber 30 parts, antioxidant 4020 4 parts, reinforcing agent 10 parts, 8 parts, magnesium oxide, 15 parts, zinc oxide, ethylene thiourea 7 parts and 5 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 4:1.
A preparation method for rubber tube, comprises the following steps:
(1) be that banbury banburying 2-4 minute is put in the chlorosulfonated polyethylene rubber of 40 parts and the ethylene propylene diene rubber mixing of 30 parts by parts by weight, banburying temperature is 90-100 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 4 parts, the reinforcing agent of 10 parts, the magnesium oxide of 8 parts, the zinc oxide of 15 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 7 parts and 5 parts, continue banburying 8 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 4:1;
(3) adjust mill temperature 45 C, the raw material after step (2) banburying is opened refining 8 minutes, blanking cools, then drops in mill, and thin-pass 4 times, obtains insulating case.
Comparative example 3
A kind of rubber tube, with parts by weight, consists of the following composition: polyurethane rubber 38 parts, ethylene propylene diene rubber 28 parts, antioxidant 4020 3 parts, reinforcing agent 6 parts, 7 parts, magnesium oxide, 13 parts, zinc oxide, ethylene thiourea 6 parts and 3 parts, calcium oxide; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1.
A preparation method for rubber tube, comprises the following steps:
(1) by parts by weight be the chlorosulfonated polyethylene rubber of 34 parts, the ethylene propylene diene rubber mixing of the polyurethane rubber of 38 parts and 28 parts puts into banbury banburying 3 minutes, and banburying temperature is 94 DEG C;
(2) continue to add the antioxidant 4020 that parts by weight are 3 parts, the reinforcing agent of 6 parts, the magnesium oxide of 7 parts, the zinc oxide of 13 parts in step (1) described banbury, the calcium oxide of the ethylene thiourea of 6 parts and 3 parts, continue banburying 6 minutes; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 3:1;
(3) adjust mill temperature 42 DEG C, the raw material after step (2) banburying is opened refining 5 minutes, blanking cools, then drops in mill, and thin-pass 2-4 time, obtains insulating case.
The test result of the insulating case produced according to embodiment 5-8 and comparative example 1-3 is as table 1.
The test result of the insulating case of table 1 embodiment 5-8 and comparative example 1-3 and production
As can be seen from the correction data of table 1, adopt the rubber proportioning of three components, the insulation resistance of rubber tube can be improved three orders of magnitude, hot strength improves more than 50%, percentage elongation improves more than 65%, and significantly increases durability and the ageing resistace of rubber tube.
Technical scheme of the present invention is not restricted in the scope of embodiment of the present invention.The technology contents of the not detailed description of the present invention is known technology.
Claims (4)
1. the convenient split-pin device of fall arrest, it is characterized in that: comprise connecting rod (3), the top of connecting rod (3) connects one end of U-shaped connecting rod (1), the other end of U-shaped connecting rod (1) is conical structure, the middle part of connecting rod (3) is set with insulating case (11), and the side of connecting rod (3) is fixedly installed anti-pendant ring (2); Insulating case (11) is with parts by weight, consist of the following composition: chlorosulfonated polyethylene rubber 30-40 part, polyurethane rubber 35-45 part, ethylene propylene diene rubber 20-30 part, antioxidant 4020 2-4 part, reinforcing agent 2-10 part, three (2-chloroethyl) phosphate 10-15 part, magnesium oxide 5-8 part, zinc oxide 10-15 part, ethylene thiourea 3-7 part and calcium oxide 2-5 part; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1.
2. the convenient split-pin device of fall arrest according to claim 1, it is characterized in that: the preparation method of described insulating case (11) comprises the following steps: parts by weight are the chlorosulfonated polyethylene rubber of 30-40 part by (1), banbury banburying 2-4 minute is put in the polyurethane rubber of 35-45 part and the ethylene propylene diene rubber mixing of 20-30 part, and banburying temperature is 90-100 DEG C;
(2) continue in step (1) described banbury, to add the antioxidant 4020 that parts by weight are 2-4 part, the reinforcing agent of 2-10 part, the magnesium oxide of 5-8 part, the zinc oxide of 10-15 part, the ethylene thiourea of 3-7 part and the calcium oxide of 2-5 part, continue banburying 5-8 minute; Described reinforcing agent is that white carbon and aluminium hydroxide are prepared according to the weight ratio of 2-4:1;
(3) adjust mill temperature 40-45 DEG C, the raw material after step (2) banburying is opened refining 4-8 minute, blanking cools, then drops in mill, and add three (2-chloroethyl) phosphate that parts by weight are 10-15 part, thin-pass 2-5 time, obtains insulating case.
3. the convenient split-pin device of fall arrest according to claim 1, it is characterized in that: the middle part of described connecting rod (3) arranges the first through hole (7) and the second through hole (9), first through hole (7) is positioned at the bottom of the second through hole (9), first through hole (7) and the second through hole (9) are equipped with U-shaped fixed lever (8), two parallel bars of U-shaped fixed lever (8) are inserted into the first through hole (7) and the second through hole (9) respectively, one end of U-shaped fixed lever (8) is provided with screw thread, the end that U-shaped fixed lever (8) arranges screw thread is equipped with butterfly nut (10) cooperation.
The convenient split-pin device of fall arrest according to claim 1, it is characterized in that: described connecting rod (3) is provided with screw (6), screw (6) coordinates with butterfly bolt (4), and butterfly bolt (4) is provided with third through-hole (5).
4. the convenient split-pin device of fall arrest according to claim 1, it is characterized in that: be rectangle after described insulating case (11) stretches, wherein a limit is arranged several vertically disposed hook (12), what the outside on another limit of the correspondence of insulating case (11) arranged that several are vertically arranged in order respectively buckles bar (13), every bar buckles on bar (13) and vertically arranges several buckling (14), buckles (14) and coordinates with corresponding hook (12).
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| 肖卫东: "《聚氨酯胶黏剂-制备、配方与应用》", 31 October 2009 * |
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Application publication date: 20150311 |