CN2937239Y

CN2937239Y - Locking joint of road safety rail rope end

Info

Publication number: CN2937239Y
Application number: CN 200620111164
Authority: CN
Inventors: 季钢焰; 陈其昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-18
Filing date: 2006-08-18
Publication date: 2007-08-22
Anticipated expiration: 2016-08-18

Abstract

The utility model discloses a road protection grate rope end locking fitting, which is characterized in that the utility model comprises a fitting outer body and a wedge body, wherein, a steel rope hole is arranged in the fitting outer body, and a matching connection structure is arranged on the fitting body; the other one section of the steel rope hole is a locking hole, the diameter of the locking hole is larger than that of the biggest end of a tap hole. The utility model locking fitting, the locking fitting is connected steadily with the steel wire, which is not easy to loosen while get car high speed dashing, acting as good safety protector; the locking device has good self locking capability, and the steel wire, the wedge body and the fitting outer body are integrated into a whole body; the utility model has the advantages of simple structure, low fabrication cost, easy installation and maintenance.

Description

Road safety guard bitter end lock-on connection

Technical field

The utility model relates to a kind of jointing of locking steel wire rope, especially locks the lock-on connection of the hawser that road safety guard uses.

Background technology

Along with the building up in a large number, be open to traffic of speedway, the freeway net of galloping is formed gradually; Simultaneously,, make it to become the high-grade highway net, improved current condition greatly, the speed per hour of automobile also is greatly improved by transformation to original key highways such as national highway, provincial highways.Because the raising of car speed has correspondingly increased the traffic safety accident; In order to reduce the loss that various security incidents cause, all to set up safety guide rail in the highway both sides.In the prior art, the highway protective guard has the rigid protective guard and two kinds of the flexible safety fences that adopts wire rope that adopts steel plate; The flexible anti guardrail is to adopt many wire rope, utilizes linkage that wire rope is fixed on support column (reinforced concrete post, channel column etc.); And linkage commonly used (casting concrete on the ground normally, one on the pull bar that connects usefulness is imbedded in the mixed casting soil, the other end links together with wire rope through take-up etc. again), be called the disclosed scheme of the Chinese utility model patent technology the inside that " flexible safety fence ", the patent No. are ZL00219350.7 as name, just adopt cable connector to be connected with earth anchor, earth anchor and roadbed (concrete) linkage in aggregates with turnbuckle, preloader; Applicant has also applied for that on June 28th, 2005 name is called " the connection locking device of high-grade highway flexible anti guardrail ", the patent No. is the utility model patent of ZL200520009553.X; The deficiency of above-mentioned linkage mainly contains: 1, the connection of locking device is very not firm, and steel wire is loosening easily, and is especially when being subjected to big strength effect, automobile high-speed collision, easier to be loosening, even is separated from, and do not have due protective effect; 2, a little less than the self-locking action of locking device, when steel wire is subjected to strength effect greatly, this active force can not be changed into self-locking action power, and steel wire is firmly connected; 3, the elongation that causes because of expanding with heat and contract with cold of wire rope or the amount of contraction are bigger, and especially when whole length of steel wire rope was very long, elongation or the amount of shrinking were more; This kind linkage can't adapt to expanding with heat and contract with cold of wire rope by the mode of self regulating, and must adjust by external force, and is very inconvenient in the use.

Summary of the invention

The utility model is not firm at the connection of connection locking device of the prior art, steel wire is loosening easily and the more weak deficiency of self-locking action, the road safety guard bitter end lock-on connection that provide a kind of and steel wire firmly can be connected, self-locking action is stronger.

The technical solution of the utility model; Road safety guard bitter end lock-on connection is characterized in that: be made up of joint ectosome and sphenoid, be provided with the steel cable hole in the joint ectosome, the joint ectosome is provided with the structure that is connected; The interlude in steel cable hole is a bellmouth, and the scalene cone of bellmouth and the scalene cone of sphenoid cooperatively interact; Other one section of the steel cable hole is fastener hole, and the diameter of fastener hole is greater than the diameter of the maximum end of bellmouth;

The intersection of fastener hole and bellmouth is the right angle.

Bitter end lock-on connection of the present utility model with respect to prior art, has following characteristics:

1, be connected firmly between lock-on connection and the steel wire, be subjected to big strength effect at safety barrier and steel wire, when automobile high-speed collides, portion is not easy to become flexible, and plays good safeguard protection effect;

2, the self-locking action of locking device is stronger, when steel wire is subjected to strength effect greatly, this active force can be changed into self-locking action power, and connect steel wire, sphenoid, joint ectosome in aggregates;

3, simple in structure, low cost of manufacture; Easy for installation, maintenance easily.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the utility model lock-on connection structural representation;

Fig. 2 is the utility model lock-on connection working state schematic representation.

The specific embodiment

In Fig. 1,1-joint ectosome, 2-steel cable hole, the 3-structure that is connected, 4-sphenoid, 5-bellmouth, 6-scalene cone, 7-fastener hole, 8-right angle, 9-external screw thread;

Bitter end lock-on connection of the present utility model, form by joint ectosome 1 and sphenoid 4, be in the joint ectosome 1 of revolving body and be provided with steel cable hole 2, penetrate for steel wire to be connected, joint ectosome 1 is provided with the structure 3 that is connected, the parts that joint ectosome 1 can be associated with other by the structure 3 that is connected as support column etc., firmly connect, become as a whole; One section (interlude) in steel cable hole 2 is bellmouths 5, and the inner surface of this bellmouth is a scalene cone; Sphenoid 4 is wedge shape, and the external surface of its active section is a scalene cone, and the scalene cone 6 of the scalene cone of sphenoid 4 and bellmouth 5 cooperatively interacts, and its tapering is identical or consistent.Other one section (the outermost section) in steel cable hole 2 is fastener holes 7, and the diameter of fastener hole 7 is greater than the diameter of the maximum end of bellmouth 5, and fastener hole 7 is right angles 8 with the intersection of bellmouth 5.The structure 3 that is connected on joint ectosome 1 plays interconnect function, can be groove, boss, screw thread etc., the parts that joint ectosome 1 is associated with it can be linked together and get final product, the structure 3 that is connected shown in the figure is arranged on the external screw thread 9 on joint ectosome 1 external surface, external screw thread 9 matches with nut on the parts that are associated, just the parts that joint ectosome 1 is associated with it can be linked together.

In Fig. 2, the 15-wire rope, the 16-steel wire, 17-compresses end;

In the lock-on connection duty shown in Figure 2, wire rope 15 penetrates in the steel cable hole 2 of joint ectosome 1, with external force (as jack etc.) sphenoid 4 is pressed in the wire rope 15 from fastener hole 7 one ends, and the active section of sphenoid 4 will feed in the bellmouth 5 usually; Wire rope 15 is to be entwined by the steel wire 16 of multiply than minor diameter, and sphenoid 4 makes wire rope 15 be divided into sub-thread after being pressed in the wire rope 15, and steel wire 16 is distributed on the periphery of sphenoid 4 with the sub-thread form.Because the effect at the right angle 8 of fastener hole 7 and bellmouth 5 intersections, sphenoid 4 can be connected wire rope 15 on the joint ectosome 1 securely.

The radial distance that compresses between end 17 and the fastener hole 7 of sphenoid 4 is slightly less than the diameter of single steel wire 16; single steel wire 16 is an interference fit compressing between end 17 and the fastener hole 7; to increase single steel wire 16 and to compress end 17; active force (comprising frictional force etc.) between single steel wire 16 and the fastener hole 7; make be connected between wire rope 15 and the joint ectosome 1 firm; has self-locking action between sphenoid 4 and the wire rope 15; when wire rope 15 is subjected to strength effect greatly; this active force can be changed into self-locking action power; and wire rope 15 is firmly connected; make joint ectosome 1; sphenoid 4; wire rope 15 threes firmly connect into an integral body, make safety guide rail play good safeguard protection effect.

Claims

1, road safety guard bitter end lock-on connection is characterized in that: be made up of joint ectosome (1) and sphenoid (1), be provided with steel cable hole (2) in the joint ectosome (1), joint ectosome (1) is provided with the structure that is connected (3); The interlude in steel cable hole (2) is bellmouth (5), and the scalene cone of the scalene cone of bellmouth (5) and sphenoid (4) cooperatively interacts; Other one section of steel cable hole (2) is fastener hole (7), and the diameter of fastener hole (7) is greater than the diameter of the maximum end of bellmouth (5).

2, road safety guard bitter end lock-on connection according to claim 1 is characterized in that: fastener hole (7) is right angle (8) with the intersection of bellmouth (5).

3, road safety guard bitter end lock-on connection according to claim 1 and 2, it is characterized in that: sphenoid (4) compress radial distance between end (17) and the fastener hole (7) less than the diameter of single steel wire (16), single steel wire (16) is an interference fit compressing between end (17) and the fastener hole (7).

4, road safety guard bitter end lock-on connection according to claim 3 is characterized in that: the described structure that is connected (3) is arranged on the external screw thread (9) on joint ectosome (1) external surface.