CN2534413Y

CN2534413Y - Screw-bolt pin

Info

Publication number: CN2534413Y
Application number: CN 02233261
Authority: CN
Inventors: 张振坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-29
Filing date: 2002-04-29
Publication date: 2003-02-05
Anticipated expiration: 2012-04-29

Abstract

An anti-vast bolt pin, the sleeve is coupled on a conical neck bolt. The inner conical sloping surface on one end of the sleeve contact tightly with the conical sloping surface on the neck of the conical neck bolt. A conical sleeve is coupled on the screw rod which runs through one end of the bush, the conical end is inserted into the area between the bush and the screw rod. The conical sloping surface contacts tightly the inner sloping surface of the bush. A breach hexagonal nut is arranged by threaded on the extruded screw rod from the bottom of the conical bush. An opening pin is arranged on the nut breach through the breach and the pin hole corresponding to the screw rod, which tightens the bush and the conical sleeve with the nut. The bolt pin is installed on the pin hole made by the tenon mouth and the tenon tongue of two connection parts. When the nut is tightened, the conical member wedges at two ends of the bush expands the pie hole, the looseness of the connection rod is eliminated, the safety of device is ensured.

Description

Anti-spacious bolt pin

Technical field

Anti-spacious bolt pin is the pin parts of the mutual pin joint of metal rod, and the pin joint operating mode that is suitable for the railway switch cylinder lever connecting rod is especially used, and belongs to metal rod pin joint technical field.

Background technique

At present, existing metal rod pin joint all adopts normal pins to connect, promptly the joint tongue intercalation of a rod member termination is gone in the duckbill tenon mouth of another rod member termination, and then a cylindrical metal latch penetrated on tenon mouth and the joint tongue corresponding pin-and-hole, and be installed on cotter pin in the pin-and-hole of cylinder latch end, the cylinder latch is fixed.Though this metal rod pin joint method is simple, often be subjected under the external force push-and-pull operating mode at connecting rod, it connects latch and pin-and-hole bears bump and wearing and tearing repeatedly, and eyelet is strengthened, so produce spacious moving.As time goes on, its spacious moving being on the rise directly influences the normal use of equipment, even becomes a kind of hidden danger.

Summary of the invention

The utility model provides a kind of pin and pin-and-hole to remain closely knit installment state, reduces bump and abrasion between pin and the pin-and-hole, prevents that rod member pin joint place from producing spacious moving anti-spacious bolt pin.

The utility model is by awl neck bolt, lining, taper sheath, the gap hexagon nut, cotter pin constitutes, lining is sleeved on the awl neck bolt, the cover inner cone inclined-plane of lining one end is mutually closely connected with awl neck bolt neck tapered slope, on the bolt shank that the lining the other end passes, install a taper sheath, the awl end of taper sheath inserts between lining and the screw rod, its tapered slope is mutually closely connected with the interior inclined-plane of lining, spiral shell is adorned a gap hexagon nut on the screw rod that passes bottom taper sheath, this nut compresses taper sheath, nut gap end by gap and screw rod on corresponding pin-and-hole install a cotter pin, with lining, taper sheath and nut fix.During use, this kind bolt pin is installed on two to be connected in the pin-and-hole that is shaped on the tenon mouth of rod members and the joint tongue, and tighten the gap hexagon nut, the cone-shaped component wedge is forced down at the lining two ends, makes expanded liner and to be connected pin-and-hole closely connected with rod member, eliminates spacious moving generation, in case find that connecting rod is spacious to some extent moving, as long as further tightening hexagon nut can eliminate, keep the kilter of equipment, guarantee safety.

Lining described in the utility model is a cylindrical shell, cylinder internal diameter is complementary with the external diameter of awl neck bolt, all make with the nozzle at its two ends is inclined-plane in the taper at the end, be shaped on the lining marginal ridge with the contacted end of bolt head, vertically be shaped on a pair of opening and closing seam from the two ends nozzle respectively to cylindrical shell central authorities along cylindrical shell, two planes at two pairs of opening and closing seam difference places are vertical mutually; The neck of awl neck bolt is a circular cone cylindricality, and its side face gradient and lining inner conical face gradient are complementary, and the thread head of bolt shank is shaped on a cotter-pin hold; Taper sheath is a cylindrical shell structure, and cylinder internal diameter is complementary with the external diameter of awl neck bolt, is being shaped on the taper sheath marginal ridge with the contacted end of gap hexagon nut, and the gradient of marginal ridge one side cone male cone (strobilus masculinus) matches with the gradient on lining inner conical inclined-plane.

Description of drawings

Fig. 1 is an organigram of the present utility model;

Fig. 2 is a structure scheme of installation of the present utility model;

Fig. 3 looks schematic representation for the lining master;

Fig. 4 is the schematic top plan view of Fig. 3;

Fig. 5 is the A-A sectional schematic diagram of Fig. 4;

Fig. 6 is awl neck bolt schematic representation;

Fig. 7 looks schematic representation for the taper sheath master;

Fig. 8 is the schematic top plan view of Fig. 7.

Embodiment

As shown in Figure 1 and Figure 2, the utility model is made of awl neck bolt 1, lining 2, taper sheath 3, gap hexagon nut 4, cotter pin 5, lining 2 is sleeved on the awl neck bolt 1, the cover inner cone inclined-plane of lining 2 one ends is mutually closely connected with awl neck bolt 1 neck tapered slope, on the screw rod that lining 2 the other ends pass, install a taper sheath 3, the awl end of taper sheath 3 inserts between lining 2 and the screw rod, and its tapered slope is mutually closely connected with the interior inclined-plane of lining 2.Spiral shell is adorned a gap hexagon nut 4 on the bolt 1 that passes in taper sheath 2 bottoms.Gap end at nut 4 is installed on cotter pin 5 on nut gap and the corresponding screw rod pin-and-hole thereof.When installing and using, this kind bolt pin is contained in two connects in the pin-and-hole that is shaped on the tenon mouth 6 of rod members and the joint tongue 7, tighten gap hexagon nut 4, under lining 2 two ends cone-shaped components extruding, make its expansion and, and then eliminate spacious moving with to be connected the rod member pin-and-hole closely connected.

Shown in Fig. 3,4,5, lining 2 is a cylindrical shell, this internal diameter of tube is complementary with awl neck bolt 1 external diameter, make with the nozzle at its two ends is inclined-plane in the taper at the end, be shaped on lining marginal ridge 2-1 at an end that contacts with bolt 1 head, vertically be shaped on a pair of opening and closing seam 2-2 from the two ends nozzle respectively to cylindrical shell central authorities along cylindrical shell, two planes at two pairs of opening and closing seam 2-2 difference places are vertical mutually.

As shown in Figure 6, the neck 1-1 of awl neck bolt 1 is a taper, and the threaded end of screw rod 1-2 is shaped on a cotter-pin hold 1-3.

Shown in Fig. 7,8, taper sheath 3 is a cylindrical shell structure, cylinder internal diameter is complementary with the external diameter of awl neck bolt 1, is being shaped on taper sheath marginal ridge 3-1 with gap hexagon nut 4 contacted ends, and the male cone (strobilus masculinus) gradient of marginal ridge one side cone 3-2 matches with the gradient on lining 2 inner conical inclined-planes.

Claims

1, a kind of anti-spacious bolt pin, by awl neck bolt, lining, taper sheath, gap hexagon nut and cotter pin constitute, it is characterized in that: lining is sleeved on the awl neck bolt, the cover inner cone inclined-plane of lining one end is mutually closely connected with awl neck bolt neck conical surface, on the bolt shank that the lining the other end passes, install a taper sheath, the awl end of taper sheath inserts between lining and the screw rod, its tapered slope is mutually closely connected with the interior inclined-plane of lining, spiral shell is adorned a gap hexagon nut on the screw rod that passes in taper sheath bottom, nut gap end by gap and screw rod on corresponding pin-and-hole install a cotter pin.

2, anti-spacious bolt pin according to claim 1, it is characterized in that: described lining is a cylindrical shell, cylinder internal diameter is complementary with the external diameter of awl neck bolt, make with the nozzle at its two ends is inclined-plane in the taper at the end, be shaped on the lining marginal ridge with the contacted end of bolt head, vertically be shaped on a pair of opening and closing seam from the two ends nozzle respectively to cylindrical shell central authorities along cylindrical shell, two planes at two pairs of opening and closing seam difference places are vertical mutually.

3, anti-spacious bolt pin according to claim 1, it is characterized in that: the neck circular cone post side face gradient of described awl neck bolt and lining inner conical face gradient are complementary, and the screw flight end is shaped on a cotter-pin hold.

4, anti-spacious bolt pin according to claim 1, it is characterized in that: described taper sheath is a cylindrical shell structure, cylinder internal diameter is complementary with the external diameter of awl neck bolt, be shaped on the taper sheath marginal ridge with the contacted end of gap hexagon nut, the gradient on the outer inclined-plane of cone matches with the gradient on lining inner conical inclined-plane.