CN112112924A - Electrically controlled intelligent anti-stumbling traction rope - Google Patents
Electrically controlled intelligent anti-stumbling traction rope Download PDFInfo
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- CN112112924A CN112112924A CN202010940848.8A CN202010940848A CN112112924A CN 112112924 A CN112112924 A CN 112112924A CN 202010940848 A CN202010940848 A CN 202010940848A CN 112112924 A CN112112924 A CN 112112924A
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- fixedly connected
- conductive spring
- pedestrian
- electric control
- stem
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- 206010017577 Gait disturbance Diseases 0.000 title claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 14
- 238000005253 cladding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000031018 biological processes and functions Effects 0.000 abstract description 3
- 241000282472 Canis lupus familiaris Species 0.000 description 24
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
- F16F15/035—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means by use of eddy or induced-current damping
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K27/00—Leads or collars, e.g. for dogs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Electromagnetism (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses an electric control type intelligent stumbling-prevention traction rope, which relates to the technical field of pet chains and comprises a plurality of electric control units, wherein the electric control units are sequentially connected, each electric control unit comprises a core column and a sliding sleeve, a plurality of sliding grooves are axially formed in the peripheral side of the core column, limiting rods are coaxially and fixedly connected in the sliding grooves, two conductive springs are symmetrically sleeved on the limiting rods, adjacent ends of the two conductive springs are fixedly connected with limiting rings, and opposite ends of the two conductive springs are fixedly connected with permanent magnets; utilize the biological action gathering electric energy of pet simultaneously to make the haulage rope take place to position the fracture immediately when will stumble the pedestrian, avoid the pedestrian to stumble, compare in the haulage rope that breaks from other positions simultaneously, all the other haulage ropes can not lead to the fact along with the pet dog action to the pedestrian and wind the effect, further avoid the pedestrian to stumble.
Description
Technical Field
The invention relates to the technical field of pet chains, in particular to an electric control type intelligent anti-stumbling traction rope.
Background
Dogs are faithful partners for humans, and more people are beginning to choose pet dogs to regulate fast-paced life and relax mood. In the process of raising the pet dog, the pet dog is generally required to be taken out and walked, and the restriction on the pet dog is generally required to be formed through a traction rope in order to avoid the situation that the pet dog runs randomly and rushes to interfere other people, so that the improper behavior of the pet dog is stopped in time. But at the in-process of walking the dog, the haulage rope forms the interception effect between the two when making things convenient for owner control pet dog, at the in-process that pet dog ran about, stumbles near pedestrian easily, even owner in time loosens the hand, the haulage rope still can cause winding and pulling effect to stumbled pedestrian along with pet dog's the running, makes it fall easily.
Disclosure of Invention
The invention provides an electric control type intelligent anti-stumbling haulage rope, and aims to solve the problem that nearby pedestrians are easy to stumble due to the fact that an intercepting effect is formed between a haulage rope owner and a pet dog in the traditional technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric control type intelligent stumbling-prevention traction rope comprises a plurality of electric control units, wherein the electric control units are sequentially connected, each electric control unit comprises a core column and a sliding sleeve, a plurality of sliding grooves are axially formed in the peripheral side of the core column, limiting rods are coaxially and fixedly connected in the sliding grooves, two conductive springs are symmetrically sleeved on the limiting rods, adjacent ends of the two conductive springs are fixedly connected with limiting rings, opposite ends of the two conductive springs are fixedly connected with permanent magnets, the limiting rings are coaxially and slidably connected to the limiting rods, the permanent magnets are fixedly connected to the end portions of the sliding grooves, a power supply is fixedly connected in the core column, the power supply is electrically connected with a control circuit, and the control circuit is electrically connected with the conductive springs;
the sliding sleeve includes a plurality of fixed blocks and a cylindric area, and is a plurality of the equal fixed connection of fixed block takes both ends at the cylindric, a plurality of piezoelectric patches of fixed block outside fixedly connected with, the piezoelectric patch keep away from fixed block one side cladding have the rubber pad and with control circuit electric connection, the inboard fixedly connected with snap ring of fixed block, conductive spring one side is kept away from through protruding and recess clearance fit with the spacing ring to the snap ring, sliding sleeve one end sliding connection is on rather than the electrical unit's that corresponds stem, and other end sliding connection is on adjacent electrical unit's stem.
Preferably, a charging circuit and a discharging circuit are arranged in the control circuit, wherein the charging circuit receives an induced current generated by the conductive spring stretching in the magnetic field of the permanent magnet and transmits the induced current to the power supply, the discharging circuit receives an electric signal of the piezoelectric sheet, disconnects the charging circuit and outputs a discharging current to the conductive spring, and the discharging current is greater than the induced current.
Preferably, the cylindrical belt has elasticity, and the snap ring is shaped like a horseshoe, wherein the horseshoe-shaped opening faces the limiting rod and has a width equal to the diameter of the limiting rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the pet dog traction rope comprises a plurality of electric control units which are sequentially connected, when a pet dog runs disorderly and explodes, the traction rope is subjected to tension, two sliding sleeves on a core column have the tendency of being away from each other, a clamping ring at the bottom of a fixed block on each sliding sleeve compresses a conductive spring through a limiting ring of a limiting rod on the core column, and the conductive spring contracts along the limiting rod and forms a buffering effect on the disorderly running and exploding of the pet dog under the elastic action of the conductive spring, so that the tensile effect of the traction rope is improved, and the pet dog is prevented from being injured.
2. When the conductive spring contracts and recovers along the limiting rod, the changed conductive spring forms induced current in the magnetic field of the permanent magnet in the chute, and the induced magnetic field generated by the induced current is opposite to the magnetic field of the permanent magnet, so that the stretching change of the conductive spring is blocked, the tensile effect of the traction rope is further improved, and the control and protection effects of the pet dog are improved.
3. The charging circuit in the control circuit in the stem collects the induced current of the conductive spring to charge the power supply, so that the action of the pet dog is utilized to supply power to the power supply; when the haulage rope meets with other pedestrians and will cause it to trip, the side and the pedestrian contact of haulage rope, the piezoelectric patches in the fixed block outside on the sliding sleeve receives the extrusion and forms the signal of telecommunication, discharge circuit among the control circuit receives the signal of telecommunication of piezoelectric patches, disconnection charging circuit is to the great discharge current of conducting spring output intensity, conducting spring contracts fast after the circular telegram, thereby make the spacing ring of being connected with it leave the snap ring, lose fixed connection between sliding sleeve and the stem this moment, it warp to have elastic cylindric area under the effect of external force, and then make the sliding sleeve break away from the stem, cause the automatic fracture effect of haulage rope, avoid causing great interception resistance to the pedestrian, avoid tripping the pedestrian.
In conclusion, the tensile effect of the traction rope is improved through the matching of the conductive spring and the permanent magnet; utilize the biological action gathering electric energy of pet simultaneously to make the haulage rope take place to position the fracture immediately when will stumble the pedestrian, avoid the pedestrian to stumble, compare in the haulage rope that breaks from other positions simultaneously, all the other haulage ropes can not lead to the fact along with the pet dog action to the pedestrian and wind the effect, further avoid the pedestrian to stumble.
Drawings
FIG. 1 is a schematic structural diagram of a part of an electric control unit according to the present invention;
FIG. 2 is a schematic view of the structure of a spacing ring and a clamping ring;
FIG. 3 is a schematic view of the present invention in a tensile state under axial tension;
FIG. 4 is a schematic view of the present invention in an anti-snag condition with radial resistance.
In the figure: 1 electric control unit, 2 core columns, 21 sliding grooves, 22 limiting rods, 23 conductive springs, 24 limiting rings, 25 permanent magnets, 26 power supplies, 27 control circuits, 3 sliding sleeves, 31 fixing blocks, 311 piezoelectric sheets, 312 clamping rings and 32 cylindrical belts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an electric control type intelligent stumble-proof haulage rope comprises a plurality of electric control units 1, wherein the electric control units 1 are sequentially connected, each electric control unit 1 comprises a core column 2 and a sliding sleeve 3, a plurality of sliding grooves 21 are axially formed in the peripheral side of the core column 2, and the sliding grooves 21 are uniformly distributed on the peripheral side of the core column 2, so that the uniformity of transmission force between the core column 2 and the sliding sleeve 3 is improved.
Equal coaxial fixedly connected with gag lever post 22 in a plurality of spouts 21, the symmetry cover is equipped with two conductive spring 23 on the gag lever post 22, and gag lever post 22 forms spacing avoiding its distortion to break away from spout 21 to conductive spring 23.
Two equal fixed connection spacing rings 24 of the adjacent one end of electrically conductive spring 23 and the equal fixedly connected with permanent magnet 25 of one end of carrying away from mutually, the coaxial sliding connection of spacing ring 24 is on gag lever post 22, and permanent magnet 25 fixed connection is at the 21 tip of spout, and when electrically conductive spring 23 is flexible in permanent magnet 25's magnetic field and changes, because the electromagnetic induction principle, inside induced-current that forms to form the magnetic field opposite with former magnetic field, hinder electrically conductive spring 23's flexible change.
A power source 26 is fixedly connected in the stem 2, the power source 26 is electrically connected with a control circuit 27, the control circuit 27 is illustrated in the prior art, and the control circuit 27 is electrically connected with the conductive spring 23.
The sliding sleeve 3 comprises a plurality of fixing blocks 31 and a cylindrical belt 32, the cylindrical belt 32 has elasticity, the fixing blocks 31 are fixedly connected to two ends of the cylindrical belt 32, and the fixing blocks 31 on one end of the cylindrical belt 32 correspond to the limiting rings 24 on the core column 2 one time.
The outer side of the fixed block 31 is fixedly connected with a plurality of piezoelectric patches 311, one side of the piezoelectric patches 311 away from the fixed block 31 is coated with a rubber pad and is electrically connected with the control circuit 27, and the piezoelectric patches 311 receive external pressure and output electric signals to the control circuit 27.
The inner side of the fixing block 31 is fixedly connected with a snap ring 312, one side of the snap ring 312, which is far away from the conductive spring 23, of the limiting ring 24 is in clearance fit with a protrusion and a groove, and a separation block is fixedly connected to the sliding groove 21 between the two snap rings 312 so as to separate the two sliding sleeves 3 on the core column 2.
The snap ring 312 is shaped like a horseshoe, wherein the opening of the horseshoe faces the limit rod 22 and the width of the opening is equal to the diameter of the limit rod 22, so that the snap ring 312 can be conveniently separated from the limit rod 22.
One end of the sliding sleeve 3 is connected with the core column 2 of the electric control unit 1 corresponding to the sliding sleeve in a sliding manner, and the other end of the sliding sleeve is connected with the core column 2 of the adjacent electric control unit 1 in a sliding manner, so that the whole traction rope is formed by sequentially connecting the sliding sleeve 3 and the core column 2.
The control circuit 27 is provided with a charging circuit and a discharging circuit, wherein the charging circuit receives the induced current generated by the conductive spring 23 stretching in the magnetic field of the permanent magnet 25 and transmits the induced current to the power supply 26, the discharging circuit receives the electric signal of the piezoelectric sheet 311 to disconnect the charging circuit and output the discharging current to the conductive spring 23, the discharging current is larger than the induced current, when the conductive spring 23 is electrified, each coil of the spring is equivalent to one coil, the coils are electrified to generate an induced magnetic field, and the induced magnetic fields formed by the coils attract each other to enable the conductive spring 23 to contract.
The principles of the present invention are now described as follows:
the pull rope consists of a plurality of electric control units 1 which are connected in sequence, the electric control units 1 are connected with each other at intervals through core columns 2 and sliding sleeves 3 which form the electric control units 1, when a pet dog runs and explodes randomly, the pull rope is subjected to tension, the two sliding sleeves 3 on the core columns 2 have the tendency of being away from each other, a plurality of fixed blocks 31 at one ends of the sliding sleeves 3 move along the direction away from the middle parts of the core columns 2, snap rings 312 fixedly connected with the bottoms of the snap rings move along with the snap rings, limit rings 24 which are in clearance fit with the snap rings through bulges and grooves are pushed to slide along limit rods 22 in sliding grooves 21 on the core columns 2, and conductive springs 23 which are sleeved on the limit rods 22 are compressed, the conductive springs 23 are contracted along the limit rods 22 and form a buffering effect on the random running and exploding of the pet dog under the elastic action of the limit rings, so that;
when the conductive spring 23 contracts and recovers along the limiting rod 22, the changed conductive spring 23 forms an induced current in the magnetic field of the permanent magnet 25 in the sliding groove 21, and the induced magnetic field generated by the induced current is opposite to the magnetic field of the permanent magnet 25, so that the stretching change of the conductive spring 23 is blocked, the tensile effect of the traction rope is further improved, and the control and protection effects of the pet dog are improved;
when the conductive spring 23 generates an induced current, a charging circuit in the control circuit 27 in the stem 2 collects the induced current of the conductive spring 23 to charge the power supply 26, so as to supply power to the power supply 26 by using the action of the pet dog;
when the traction rope encounters other pedestrians and is about to trip the pedestrians, the side face of the traction rope is in contact with the pedestrians, the piezoelectric sheet 311 on the outer side of the fixing block 31 on the sliding sleeve 3 is extruded to form an electric signal, the discharging circuit in the control circuit 27 receives the electric signal of the piezoelectric sheet 311, the charging circuit is disconnected, a discharging current with high intensity is output to the conductive spring 23, the conductive spring 23 is quickly contracted after being electrified, so that the limiting ring 24 connected with the conductive spring is separated from the clamping ring 311, at the moment, the sliding sleeve 3 is not fixedly connected with the core column 2, the elastic cylindrical belt 32 deforms under the action of external force, the sliding sleeve 3 is separated from the core column 2, the automatic fracture effect of the traction rope is caused, the pedestrians are prevented from being intercepted with large resistance, and the pedestrians are prevented;
in conclusion, the tensile effect of the traction rope is improved through the matching of the conductive spring 23 and the permanent magnet 25; utilize the biological action gathering electric energy of pet simultaneously to make the haulage rope take place to position the fracture immediately when will stumble the pedestrian, avoid the pedestrian to stumble, compare in the haulage rope that breaks from other positions simultaneously, all the other haulage ropes can not lead to the fact along with the pet dog action to the pedestrian and wind the effect, further avoid the pedestrian to stumble.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The utility model provides an electric control formula intelligence prevents stumbling haulage rope, includes a plurality of electrical control unit (1), and is a plurality of electrical control unit (1) connects gradually, its characterized in that, electrical control unit (1) includes stem (2) and sliding sleeve (3), a plurality of spouts (21) have been seted up along the axial to stem (2) periphery side, and is a plurality of equal coaxial fixedly connected with gag lever post (22) in spout (21), the symmetrical cover is equipped with two conductive spring (23) on gag lever post (22), two equal fixedly connected with spacing ring (24) of the adjacent one end of conductive spring (23) and the equal fixedly connected with permanent magnet (25) of one end of keeping away from mutually, coaxial sliding connection of spacing ring (24) is on gag lever post (22), permanent magnet (25) fixed connection is at spout (21) tip, fixedly connected with power (26) in stem (2), power (26) electric connection has control circuit (27), the control circuit (27) is electrically connected with the conductive spring (23);
sliding sleeve (3) are including a plurality of fixed blocks (31) and a cylindric area (32), and are a plurality of equal fixed connection of fixed block (31) takes (32) both ends at cylindric area, a plurality of piezoelectric patches (311) of fixed block (31) outside fixedly connected with, piezoelectric patch (311) are kept away from fixed block (31) one side cladding have the rubber pad and with control circuit (27) electric connection, fixed block (31) inboard fixedly connected with snap ring (312), conductive spring (23) one side is kept away from through arch and recess clearance fit with spacing ring (24) snap ring (312), sliding sleeve (3) one end sliding connection is on stem (2) rather than the automatically controlled unit (1) that corresponds, and other end sliding connection is on stem (2) of adjacent automatically controlled unit (1).
2. The electrically controlled intelligent anti-stumbling traction rope according to claim 1, characterized in that a charging circuit and a discharging circuit are arranged in the control circuit (27), wherein the charging circuit receives the induced current generated by the conductive spring (23) stretching in the magnetic field of the permanent magnet (25) and transmits the induced current to the power supply (26), the discharging circuit receives the electric signal of the piezoelectric sheet (311) to disconnect the charging circuit and output the discharging current to the conductive spring (23), and the discharging current is larger than the induced current.
3. The electrically controlled intelligent anti-snag leash of claim 1, wherein the cylindrical strap (32) is elastic and the snap ring (312) is horseshoe shaped with a horseshoe shaped opening facing the restraint rod (22) and a width equal to the restraint rod (22) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940848.8A CN112112924A (en) | 2020-09-09 | 2020-09-09 | Electrically controlled intelligent anti-stumbling traction rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940848.8A CN112112924A (en) | 2020-09-09 | 2020-09-09 | Electrically controlled intelligent anti-stumbling traction rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112112924A true CN112112924A (en) | 2020-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010940848.8A Withdrawn CN112112924A (en) | 2020-09-09 | 2020-09-09 | Electrically controlled intelligent anti-stumbling traction rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112112924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339452A (en) * | 2021-05-28 | 2021-09-03 | 泸州宏兴电气有限公司 | Communication optical cable protector |
| CN113638252A (en) * | 2021-08-18 | 2021-11-12 | 江阴市捷龙新材料科技有限公司 | Metal haulage rope based on elastic stretching deformation characteristic |
-
2020
- 2020-09-09 CN CN202010940848.8A patent/CN112112924A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339452A (en) * | 2021-05-28 | 2021-09-03 | 泸州宏兴电气有限公司 | Communication optical cable protector |
| CN113339452B (en) * | 2021-05-28 | 2022-06-21 | 泸州宏兴电气有限公司 | Communication optical cable protector |
| CN113638252A (en) * | 2021-08-18 | 2021-11-12 | 江阴市捷龙新材料科技有限公司 | Metal haulage rope based on elastic stretching deformation characteristic |
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Application publication date: 20201222 |