CN218099044U - Single wire and cable vertical combustion test piece straightening instrument - Google Patents
Single wire and cable vertical combustion test piece straightening instrument Download PDFInfo
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- CN218099044U CN218099044U CN202222125086.3U CN202222125086U CN218099044U CN 218099044 U CN218099044 U CN 218099044U CN 202222125086 U CN202222125086 U CN 202222125086U CN 218099044 U CN218099044 U CN 218099044U
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Abstract
The utility model discloses a single wire and cable vertical combustion test piece straightening instrument, which comprises a bottom plate for bearing, wherein the middle part of the upper surface of the bottom plate is provided with a support used as a cable straightening fulcrum, the upper surface of the support is provided with a straightening component for pulling a cable, one side of the support is provided with a linking component for connecting the cable, and the straightening component and the linking component are connected through a force measuring component; the connecting assembly is connected with the cable, the control straightening assembly is connected with the force measuring assembly to pull the connecting assembly, and the connecting assembly is used for acting on the cable and straightening the cable. The utility model discloses a straightening appearance that sets up has the accuracy, convenient operation, portable, multiple mode adjust the pulling force value, receive characteristics such as temperature influence is little.
Description
Technical Field
The utility model relates to a cable burning test technical field specifically is a single perpendicular burning test piece of wire and cable appearance of flare-outing.
Background
The flame-retardant wire cable or optical cable product is widely applied to various construction projects, is characterized by large laying amount and high laying density, and has important significance for preventing the occurrence of fire and the spread of flame, reducing the loss of fire and ensuring the safe evacuation of various personnel. GB/T18380 aims at establishing test methods for the flame retardant performance of different flame retardant wire and cable products under different installation and laying conditions.
At present, no effective technical guarantee measure for obvious movement of a test piece in a vertical spread test of a single insulated wire and cable exists, and the test piece may obviously move in the test process, so that the test result of the flame retardant property of a single wire and cable product under a vertical installation condition is invalid.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single perpendicular burning test piece of wire and cable appearance of flare-outing to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: a single wire and cable vertical combustion test piece straightening instrument comprises a base for bearing, wherein a support serving as a cable straightening fulcrum is arranged in the middle of the upper surface of the base, a straightening assembly used for pulling a cable is arranged on the upper surface of the support, a connecting assembly used for connecting the cable is arranged on one side of the support, and the straightening assembly and the connecting assembly are connected through a force measuring assembly;
the connecting assembly is connected with the cable, the control straightening assembly is connected with the force measuring assembly to pull the connecting assembly, and the connecting assembly is used for acting on the cable and straightening the cable.
Preferably, the straightening assembly comprises a lever connected with the support through a rotating shaft, a first hanging wheel set is arranged on one side of the lever, and a counterweight part is connected on one side of the lever, which is far away from the first hanging wheel set;
the first hanging wheel group comprises two first small hanging wheels which are symmetrically arranged along the lever axis, the first small hanging wheels are connected with a first large hanging wheel through a first connecting belt, the two groups of first large hanging wheels are connected through a first connecting rod, and the middle part of the first connecting rod is in an arc shape;
the counterweight part comprises a through hole arranged in the lever, a threaded rod is arranged in the through hole, a threaded sleeve is sleeved on the periphery of the threaded rod, a guide rod is connected to the periphery of the threaded sleeve, and two sides of the guide rod are connected with the second hanging wheel group;
two sides of the lever are provided with limit grooves for the guide rod to slide,
one end of the threaded rod is connected with a rotary table,
one side of the lever is provided with a second hanging wheel set, the lower portion of the second hanging wheel set is connected with a first hook, the lower surface of the first hook is connected with a supporting rod, the bottom end surface of the supporting rod is connected with a weight tray, and a plurality of groups of weights are arranged above the weight tray.
Preferably, the counterweight part further comprises a scale plate arranged on one side surface of the lever, and the outer side of the scale plate is connected with a sliding block.
Preferably, the second hanging wheel group comprises second small hanging wheels arranged on two sides of the supporting rod, the second small hanging wheels are connected with second large hanging wheels through second connecting belts, the second small hanging wheels are connected with the second large hanging wheels through second connecting rods, and the middle of each second connecting rod is arc-shaped, so that the middle of the first hook hooked to the second connecting rod is connected with the second hanging wheel group.
Preferably, a level is arranged on the upper surface of the lever.
Preferably, the upper surface of base is connected with the protective cradle, just the protective cradle is located the below at lever middle part, one side that the protective cradle was kept away from to the base is provided with the linking frame.
Preferably, the dynamometry subassembly includes the dynamometer that is connected with first hanging wheel group, the upper portion of dynamometer is provided with the second couple that is connected with first connecting rod, the sub-unit connection of dynamometer has the lifting hook, the below of lifting hook is connected with the second double-screw bolt, the below of second double-screw bolt is provided with hangs the frame, the sub-unit connection of hanging the frame has first double-screw bolt, the bottom end face of first double-screw bolt is connected with the collude ring.
Preferably, one side of the dynamometer is connected with a display meter for displaying the tension value of the dynamometer, and the display meter is arranged on one side of the bracket.
Preferably, the linking component comprises two groups of base rods arranged on the upper surface of the base, pulleys are arranged in the middle of the two groups of base rods, a rope is connected to the periphery of each pulley, a third hook is connected to one side of the rope, and one side, far away from the third hook, of the rope is connected with the hook rings.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a straightening appearance that sets up has the accuracy, convenient operation, portable, multiple mode adjust the pulling force value, receive characteristics such as temperature influence is little.
According to the requirement of GB/T18380.12, the distance between the horizontal lower support of the existing fixed sample and the bottom surface of the metal cover is 50mm, and because the fixed support produced by each manufacturer has different forms, the height of the base and the support of the utility model is 50mm, and the utility model is convenient to move, carry and apply to most of equipment, and has wide application range and convenient use;
when the electric wire and cable with the size of more than 16mm2 needs to be tested, the wire nose with the corresponding specification can be assembled at the lower end part of the electric wire and cable, and then the third hook is connected with the wire nose, so that the vertical combustion test device is suitable for the vertical combustion test of a single electric wire and cable with all specifications;
the pulling force value can be adjusted in a plurality of ways by adjusting the weight of the weight group, the length of the arm of force of the lever and the position of the free weight, so that the operation is more convenient;
the length that probably has temperature variation to lead to the rope in the combustion process takes place slight change, and length variation will make lever horizontal degree change, and the rope of vertical direction can produce the power of little level, and the power of exerting in the experimentation will change, adjusts the pulling force value through multiple mode for the lever level can reduce the combustion process because the error that temperature variation arouses, receives the influence of temperature less, has certain degree of accuracy.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a screw-out structure of the embodiment of the present invention;
FIG. 3 is a schematic view of the through hole structure of the connector tile according to the embodiment of the present invention;
fig. 4 is an enlarged schematic view of a structure at a position a in the embodiment of the present invention;
fig. 5 is an enlarged schematic view of a second hanging wheel set structure according to an embodiment of the present invention;
fig. 6 is an enlarged schematic view of a structure of a connection assembly according to an embodiment of the present invention;
fig. 7 is an enlarged schematic view of a first hanging wheel set structure according to an embodiment of the present invention;
fig. 8 is a partially cut-away structural diagram of a lever according to an embodiment of the present invention.
In the figure: 1. a base; 2. a support; 3. a straightening assembly; 301. a lever; 302. a first hoisting wheel set; 3021. a first small hanging wheel; 3022. a first connecting belt; 3033. a first large hoisting wheel; 3034. a first link; 304. a rotating shaft; 4. an engagement assembly; 401. a base shaft; 402. a pulley; 403. a cord; 404. a third hook; 5. a force measuring assembly; 501. a force gauge; 502. a second hook; 503. hanging a frame; 504. a first stud; 505. hooking a ring; 506. displaying the table; 507. a hook; 508. a second stud; 6. a linking frame; 7. a counterweight portion; 701. a through hole; 702. a threaded rod; 703. a threaded sleeve; 704. a guide bar; 705. a turntable; 706. a second hoisting wheel set; 7061. a second small hanging wheel; 7062. a second connecting band; 7063. a second large hoisting wheel; 7064. a second link; 707. a first hook; 708. a strut; 709. a weight tray; 710. a weight; 711. a scale plate; 712. a run number; 8. A level bar; 9. and (4) protecting the bracket.
Detailed Description
In order to facilitate solving the problem that the test piece can obviously take place to remove among the current single wire and cable vertical combustion test process, the utility model provides a single wire and cable vertical combustion test piece appearance of flare-outing. The technical solution in the present invention will be clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described utility model is only a part of the utility model rather than the whole utility model. Based on utility model provides a, all other utility model that the ordinary skilled person in the art obtained under the prerequisite of not making creative work all belong to the utility model discloses the scope of protection.
Referring to fig. 1-8, the utility model provides a single electric wire vertical combustion test piece straightening instrument, which comprises a base 1 for supporting, wherein a support 2 serving as a cable straightening fulcrum is arranged in the middle of the upper surface of the base 1, a straightening assembly 3 for pulling a cable is arranged on the upper surface of the support 2, a linking assembly 4 for connecting the cable is arranged on one side of the support 2, and the straightening assembly 3 is connected with the linking assembly 4 through a force measuring assembly 5;
the connecting assembly 4 is connected with a cable, the straightening assembly 3 is controlled to be connected with the force measuring assembly 5 to pull the connecting assembly 4, and the connecting assembly 4 exerts force on the cable and straightens the cable.
The further straightening assembly 3 comprises a lever 301 connected with the bracket 2 through a rotating shaft 304, a first hanging wheel set 302 is arranged on one side of the lever 301, and a counterweight part 7 is connected on one side of the lever 301 far away from the first hanging wheel set 302;
the first hanging wheel group 302 comprises two first small hanging wheels 3021 symmetrically arranged along the axis of the lever 301, the first small hanging wheels 3021 are connected with first large hanging wheels 3033 through first connecting belts 3022, the two groups of first large hanging wheels 3033 are connected through first connecting rods 3034, and the middle part of each first connecting rod 3034 is arc-shaped;
the counterweight part 7 comprises a through hole 701 arranged in the lever 301, a threaded rod 702 is arranged in the through hole 701, a threaded sleeve 703 is sleeved on the periphery of the threaded rod 702, a guide rod 704 is connected with the periphery of the threaded sleeve 703, and two sides of the guide rod 704 are connected with a second hoisting wheel set 706;
limiting grooves for the guide rods 704 to slide are formed on two sides of the lever 301,
a dial 705 is attached to one end of threaded rod 702,
a second hanging wheel group 706 is arranged on one side of the lever 301, a first hook 707 is connected to the lower portion of the second hanging wheel group 706, a supporting rod 708 is connected to the lower surface of the first hook 707, a weight tray 709 is connected to the bottom end surface of the supporting rod 708, and a plurality of groups of weights 710 are arranged above the weight tray 709.
Further, the weight portion 7 further includes a scale plate 711 provided on one side surface of the lever 301, and a rider 712 is slidably connected to an outer side of the scale plate 711.
The second hanging wheel group 706 further comprises second small hanging wheels 7061 arranged on two sides of the supporting rod, the second small hanging wheels 7061 are connected with second large hanging wheels 7063 through second connecting belts 7062, the two groups of second large hanging wheels 7063 are connected through second connecting rods 7064, and the middle parts of the second connecting rods 7064 are arc-shaped, so that the middle parts of the first hooks 707 hooked to the second connecting rods 7064 are connected with the second hanging wheel group 706.
The upper surface of the further lever 301 is provided with a level 8.
Further the upper surface of base 1 is connected with protecting support 9, and protecting support 9 is located the below in lever 301 middle part, and one side that protecting support 9 was kept away from to base 1 is provided with linking frame 6.
The force measuring assembly 5 further comprises a force measuring unit 501 connected with the first hanging wheel set 302, a second hook 502 connected with the first connecting rod 3034 is arranged at the upper part of the force measuring unit 501, a hook 507 is connected at the lower part of the force measuring unit 501, a second stud 508 is connected below the hook 507, a hanging frame 503 is arranged below the second stud 508, a first stud 504 is connected at the lower part of the hanging frame 503, and a hook ring 505 is connected to the bottom end surface of the first stud 504.
Further, a display meter 506 for displaying the tension value of the load cell 501 is connected to one side of the load cell 501, and the display meter 506 is provided on one side of the stand 2.
The further engaging component 4 comprises two groups of base rods 401 arranged on the upper surface of the base 1, a pulley 402 is arranged in the middle of each group of base rods 401, a string 403 is connected to the periphery of the pulley 402, a third hook 404 is connected to one side of the string 403, and one side of the string 403 far away from the third hook 404 is connected to a hook ring 505.
The utility model discloses a single electric wire and cable vertical combustion test piece appearance of flare-outing has following advantage:
the utility model discloses a straightening appearance that sets up has the accuracy, convenient operation, portable, multiple mode adjust the pulling force value, receive characteristics such as temperature influence is little.
According to the requirement of GB/T18380.12, the distance between the horizontal lower support of the existing fixed sample and the bottom surface of the metal cover is 50mm, and because the fixed support produced by each manufacturer has different forms, the height of the base and the support of the utility model is 50mm, and the utility model is convenient to move, carry and apply to most of equipment, and has wide application range and convenient use;
when the electric wire and cable with the size of more than 16mm2 needs to be tested, the wire nose with the corresponding specification can be assembled at the lower end part of the electric wire and cable, and then the third hook is connected with the wire nose, so that the vertical combustion test device is suitable for the vertical combustion test of a single electric wire and cable with all specifications;
the pulling force value can be adjusted in a plurality of ways by adjusting the weight of the weight stack, the length of the arm of force of the lever and the position of the free weight, so that the operation is more convenient;
the length that probably has temperature variation to lead to the rope in the combustion process takes place slight change, and length variation will make lever horizontal degree change, and the rope of vertical direction can produce the power of little level, and the power of exerting in the experimentation will change, adjusts the pulling force value through multiple mode for the lever level can reduce the combustion process because the error that temperature variation arouses, receives the influence of temperature less, has certain degree of accuracy.
Although the present invention has been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a single electric wire and cable vertical burning test piece appearance of flare-outing which characterized in that: the cable straightening device comprises a base (1) for bearing, wherein a support (2) serving as a cable straightening fulcrum is arranged in the middle of the upper surface of the base (1), a straightening assembly (3) for pulling a cable is arranged on the upper surface of the support (2), a connecting assembly (4) for connecting the cable is arranged on one side of the support (2), and the straightening assembly (3) and the connecting assembly (4) are connected through a force measuring assembly (5);
will link up subassembly (4) and cable and be connected, control subassembly (3) of flare-outing is connected dynamometry subassembly (5) and is drawn linking up subassembly (4) and drag, links up subassembly (4) and is located with the effort in cable, with its operation of flare-outing.
2. The single wire cable vertical combustion test piece straightening instrument according to claim 1, characterized in that: the straightening assembly (3) comprises a lever (301) connected with the support (2) through a rotating shaft (304), a first hanging wheel set (302) is arranged on one side of the lever (301), and a counterweight part (7) is connected to one side, far away from the first hanging wheel set (302), of the lever (301);
the first hanging wheel set (302) comprises two first small hanging wheels (3021) symmetrically arranged along the axis of a lever (301), the first small hanging wheels (3021) are connected with first large hanging wheels (3033) through first connecting belts (3022), the two groups of first large hanging wheels (3033) are connected through first connecting rods (3034), and the middle parts of the first connecting rods (3034) are arc-shaped;
the counterweight part (7) comprises a through hole (701) formed in the lever (301), a threaded rod (702) is arranged in the through hole (701), a threaded sleeve (703) is sleeved on the periphery of the threaded rod (702), a guide rod (704) is connected to the periphery of the threaded sleeve (703), and two sides of the guide rod (704) are connected with a second hoisting wheel set (706);
two sides of the lever (301) are provided with limit grooves for the guide rod (704) to slide,
one end of the threaded rod (702) is connected with a rotary disc (705),
one side of the lever (301) is provided with a second hanging wheel set (706), the lower portion of the second hanging wheel set (706) is connected with a first hook (707), the lower surface of the first hook (707) is connected with a supporting rod (708), the bottom end surface of the supporting rod (708) is connected with a weight tray (709), and a plurality of groups of weights (710) are arranged above the weight tray (709).
3. The single wire cable vertical combustion test piece straightening instrument according to claim 2, characterized in that: the counterweight part (7) further comprises a scale plate (711) arranged on one side face of the lever (301), and a sliding code (712) is connected to the outer side of the scale plate (711) in a sliding mode.
4. The single wire cable vertical combustion test piece straightening instrument according to claim 3, characterized in that: the second hanging wheel set (706) comprises second small hanging wheels (7061) arranged on two sides of the supporting rod, the second small hanging wheels (7061) are connected with second large hanging wheels (7063) through second connecting belts (7062), the second large hanging wheels (7063) are connected with each other through second connecting rods (7064), and the middle of each second connecting rod (7064) is arc-shaped, so that the middle of a first hook (707) hooked to the second connecting rod (7064) is connected with the second hanging wheel set (706).
5. The single wire cable vertical combustion test piece straightening instrument according to claim 4, characterized in that: the upper surface of the lever (301) is provided with a horizontal ruler (8).
6. The single wire cable vertical combustion test piece straightening instrument according to claim 5, characterized in that: the upper surface of base (1) is connected with protecting support (9), just protecting support (9) are located the below at lever (301) middle part, one side that protecting support (9) were kept away from in base (1) is provided with linking frame (6).
7. The single wire cable vertical combustion test piece straightening instrument according to claim 6, characterized in that: the force measuring assembly (5) comprises a force measuring unit (501) connected with a first hanging wheel set (302), a second hook (502) connected with a first connecting rod (3034) is arranged on the upper portion of the force measuring unit (501), a hook (507) is connected to the lower portion of the force measuring unit (501), a second stud (508) is connected to the lower portion of the hook (507), a hanging frame (503) is arranged below the second stud (508), a first stud (504) is connected to the lower portion of the hanging frame (503), and a hook ring (505) is connected to the bottom end face of the first stud (504).
8. The single wire cable vertical combustion test piece straightening instrument according to claim 7, characterized in that: one side of the dynamometer (501) is connected with a display meter (506) used for displaying the tension value of the dynamometer (501), and the display meter (506) is arranged on one side of the bracket (2).
9. The single wire cable vertical combustion test piece straightening instrument according to claim 8, wherein: the connecting component (4) comprises two groups of base rods (401) arranged on the upper surface of the base (1), a pulley (402) is arranged in the middle of each of the two groups of base rods (401), a rope (403) is connected to the periphery of the pulley (402), a third hook (404) is connected to one side of the rope (403), and one side, far away from the third hook (404), of the rope (403) is connected with a hook ring (505).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222125086.3U CN218099044U (en) | 2022-08-12 | 2022-08-12 | Single wire and cable vertical combustion test piece straightening instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222125086.3U CN218099044U (en) | 2022-08-12 | 2022-08-12 | Single wire and cable vertical combustion test piece straightening instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218099044U true CN218099044U (en) | 2022-12-20 |
Family
ID=84446400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222125086.3U Active CN218099044U (en) | 2022-08-12 | 2022-08-12 | Single wire and cable vertical combustion test piece straightening instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218099044U (en) |
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2022
- 2022-08-12 CN CN202222125086.3U patent/CN218099044U/en active Active
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