CN206394362U - A kind of trundle bracket - Google Patents

Abstract

The utility model discloses a kind of trundle bracket, including the trundle bracket on the downside of square installing plate and its, the corner of installing plate is provided with mounting hole, trundle bracket includes two fork plates turned forward being oppositely arranged, fork plate end is provided with castor axis hole, two fork plate is fixed on bearing plate both sides, bearing plate is rotatably on the downside of installing plate, dust ring is housed between installing plate and bearing plate, fork plate is made of one piece with bearing plate, and bearing plate outer both sides extend downwardly out fork plate and in the brake passage of rear side formation one；The passage that brakes is interior to be provided with brake assemblies, brake assemblies are included on the inside of two fork plates is hinged on fixed plate thereon by major axis, fixed front edge of board is contacted with bearing plate lower edge, the inclined pressure strip of side-lower backward is also hinged with major axis, pressure strip end is equipped with brake shoes, and the height of brake shoes is concordant with castor axis hole and can adjust.The utility model is simple in construction, is hardly damaged, and long lifespan effectively prevents dust from entering, and mitigates the abrasion of friction means.

Description

A kind of trundle bracket

Technical field

This Shi Xin Xing Wataru and a kind of castor, the dust-proof trundle bracket of particularly a kind of strap brake.

Background technology

Castor includes trundle bracket, wheel assembly and brake assemblies on trundle bracket, of the prior art to stop Car is general on the upside of wheel or the brake of oblique upper, but because people is usually bad to have an effect, also very expense when trampling to preceding pushing away rear Power, and easily step at brake position partially, so as to cause brake to break away, fail；And easily block unclamping pedal rear braking component Extremely, it is greatly unfavorable to subsequent operation；In addition, existing castor usually not dust guard, dust enters after rotary part, it can increase The abrasion of big friction means, makes it damage rapidly, causes unbalance stress, easily tilt castor, brake it is stuck, it is impossible to turn to； Meanwhile, existing castor steering position generally bears longitudinal pressure using a thrust bearing, easily damages, in the effect of dust Under, its rate of decay can be accelerated.Therefore, it is necessary to which existing castor is improved and optimized.

Utility model content

To overcome the deficiencies in the prior art, the utility model provides a kind of trundle bracket.

The utility model solves the technical scheme that its technical problem used：

A kind of trundle bracket, including square installing plate and the trundle bracket on the downside of it, the corner of installing plate is provided with installation Hole, the installing plate middle part is downwardly convex and forms a circular groove in upside, and the groove center is provided with through hole, the installation The bottom plate that a middle part raises up is fixed with through through hole by rivet on the downside of plate, the trundle bracket is oppositely arranged including two The fork plate turned forward, fork plate end is provided with castor axis hole, and two fork plates are fixed on bearing plate both sides, the bearing plate Rotatably on the downside of installing plate, the fork plate is made of one piece with bearing plate, is filled between the installing plate and bearing plate Have on the downside of dust ring, the upper and lower annular recess staggered provided with vertical direction in the bearing plate inside edge, the installing plate and bottom Recess corresponding with the annular recess of upper and lower side, the annular recess and recess of the upper and lower side of bearing plate are respectively equipped with the upside of plate Between be equipped with outside some balls, the ball and load lithium base grease；Bearing plate outer both sides extend downwardly out fork plate and Brake assemblies are provided with the brake passage of rear side formation one, the brake passage, the brake assemblies are included in logical on the inside of two fork plates Cross major axis and be hinged on fixed plate thereon, fixed front edge of board is contacted with bearing plate lower edge, is also hinged with to rear side on major axis The pressure strip of inclined downward, pressure strip end is equipped with brake shoes, and the height of brake shoes is concordant with castor axis hole and can adjust；It is fixed Plate tail end is hinged with pedal, the first short axle by the first short axle and torsion spring is housed, and one end is pressed in fixed plate, another side pressure On pedal, also it is hinged with the first short axle in the middle part of the first connecting plate, pressure strip and the second connecting plate is hinged with by the second short axle, First connecting plate and the second connecting plate are hinged by the 3rd short axle.

Further, the fixed plate both sides are provided with the starting stave of shaping in conjunction, the major axis through both sides the One riser is fixed in fork plate, corresponding slotted hole is provided with the starting stave of both sides, the two ends of the 3rd short axle respectively can That slides is placed in the slotted hole of both sides.

Further, the second riser of triangle of the pedal front part sides provided with shaping in conjunction, the second riser Angle is set to fillet, and the first short axle is fixed on starting stave through the second riser of both sides.

Further, the brake shoes friction portion point to fork plate castor axis hole, and brake when with castor axis hole same One height.

Further, the brake shoes is the mushroom screw rod that an inversion is screwed onto on pressure strip, and its friction portion surface is provided with Some annular friction stripeds.

Further, the pedal tail down tilts 30 °.

Further, the dust ring adopts made of plastic, and its section is T font structures, and it inserts installing plate and bearing plate Between and it is intimate contact therewith.

Further, the groove is built with the groove lid of plastic material, and groove lid upper surface is concordant with installing plate upper surface.

Further, the annular recess on the downside of the bearing plate is located at the annular recess inner side on the upside of bearing plate, i.e. downside The circle diameter of annular recess is less than the circle diameter of the annular recess of upside.

Further, the ball diameter on the upside of the bearing plate is more than the diameter of the ball of downside.

The beneficial effects of the utility model are：The utility model is concordant with castor axis hole and can adjust by the height of brake shoes Setting, braked by brake shoes from rear side, force road wheel to stop operating, because people is usually to preceding pushing away, to operate non-rear Often simply, conveniently, also allow for having an effect, it is also very laborsaving when trampling, it can effectively prevent brake from breakking away and failing；Power is stored by torsion spring, It can rapidly upward be rebounded after pedal is unclamped, release braking state, prevent brake assemblies stuck；Simultaneously by installing plate with holding Dust ring is installed between pressing plate, effectively prevents dust from entering, the abrasion of friction means is greatly alleviated, prevents ball from damaging, Ensure the uniform of ball stress, it is ensured that castor is steady, it is stuck to avoid, and ensures the flexibility turned to；In addition, by bearing plate Setting ball straggly bears longitudinal pressure up and down, is more uniformly stressed, is hardly damaged, due to having completely cut off dust, its service life Greatly promoted, with very high practicality.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is structural representation of the present utility model；

Fig. 2 is Fig. 1 left view structural representation；

Fig. 3 is Fig. 1 present invention looks up structural representation.

Embodiment

Referring to figs. 1 to 3, a kind of trundle bracket, including square installing plate 1 and the trundle bracket 2 on the downside of it, installing plate 1 Corner be provided with mounting hole 3, the middle part of installing plate 1 is downwardly convex and is formed in upside in a circular groove 4, the groove 4 The heart is provided with through hole, and the downside of installing plate 1 is fixed with the bottom plate 6 that a middle part raises up, rivet two ends point by rivet 5 through through hole It is not hidden in the projection of groove 4 and bottom plate 6, groove 4 is built with the groove lid 12 of plastic material, the upper surface of groove lid 12 and installing plate 1 Upper surface is concordant, and it is masking groove that it, which is acted on, makes the outward appearance of trundle bracket more complete.

Rounded insertion in the middle of rotatable bearing plate 7, bearing plate 7 is housed between the bottom plate 6 and installing plate 1, installed When bearing plate 7 is first enclosed on 1 time middle side part of installing plate, then by the height of bottom plate 6 on installing plate 1, bearing plate 7 is on bottom plate 6, no It can drop.The upper and lower annular recess staggered provided with vertical direction in the inside edge of bearing plate 7, the downside of installing plate 1 and bottom plate 6 Upside is respectively equipped with recess corresponding with the annular recess of upper and lower side, between the annular recess and recess of the upper and lower side of bearing plate 7 It is equipped with some balls 9；The annular recess of the downside of bearing plate 7 is located on the inside of the annular recess of the upside of bearing plate 7, i.e. the ring of downside The circle diameter of shape recess is less than the circle diameter of the annular recess of upside simultaneously, under the diameter of ball 9 of the upside of bearing plate 7 is more than The diameter of the ball 9 of side.So, above and below, inside and outside two circles ball 9, the pressure of top is made to be dispersed, lifting ball 9 Service life, improves the reliability that bearing plate 7 is rotated, further improves the service life of trundle bracket.

The ball 9 is outer to load lithium base grease；Load lithium base grease in annular recess and recess, make ball 9 Lubricating grease is wrapped outside, friction is contacted with installation portion 1, bottom plate 6 and bearing plate 7 by lubricating grease, the mechanical friction of reduction therebetween has Effect prevents mechanical wear.Dust ring 8 is housed between installing plate 1 and bearing plate 7；Dust ring 8 adopts made of plastic, and its section is T Font structure, it inserts between installing plate 1 and bearing plate 7 and intimate contact therewith；Effectively it can prevent dust from entering by dust ring 8 Enter the scroll space of ball 9, keep the cleaning of lubricating grease, further improve its service life.

Two fork plates 10 of trundle bracket 2 are fixed on the both sides of bearing plate 7 and are oppositely arranged, and two fork plates 10 are to front side Tilt, its end is provided with castor axis hole 11.The wheel shaft two ends of road wheel are installed by the castor axis hole 11 of both sides, are installed Cheng Houke is easily turned to, and its is simple in construction, turns to flexible, and durable in use, steering operation is also very simple, conveniently, only To be touched to the direction for needing to turn to.

The fork plate 10 is made of one piece with bearing plate 7, and the outer both sides of bearing plate 7 extend downwardly out fork plate 10 and rear Side forms and brake assemblies is provided with a brake passage, brake passage, and brake assemblies are included in the inner side of two fork plate 10 by major axis 13 Fixed plate 14 thereon is hinged on, the front end of fixed plate 14 is contacted with the lower edge of bearing plate 7, is basic point with major axis 13, is just formed One lever construction, fixed plate 14 has been secured to the inner side of fork plate 10.Side-lower backward is also hinged with major axis 13 inclined Pressure strip 15, the end of pressure strip 15 is equipped with brake shoes 16, and the height of brake shoes 16 is concordant with castor axis hole 11 and can adjust；Brake Block 16 is the mushroom screw rod that an inversion is screwed onto on pressure strip 15, and its friction portion surface is provided with some annular friction stripeds and refers to To the castor axis hole 11 of fork plate 10, and in brake with castor axis hole 11 in sustained height, after road wheel is installed, brake shoes 16 leads to Cross and braked on rear side of road wheel, force road wheel to stop operating, operation is very simply, conveniently.

The tail end of fixed plate 14 is hinged with pedal 18 by the first short axle 17, and the tail down of pedal 18 tilts 30 ° with side Just pin is stepped on, and because brake shoes 16 on rear side of road wheel by braking, there is strength component forward, the tail of pedal 18 while pin is stepped on It is the most suitable that portion is tilted down, in the setting of angle, by practice, it is found that 30 ° of angle is the most laborsaving.

Torsion spring 19 is housed, the one end of torsion spring 19 is pressed in fixed plate 14, the other end is pressed in pedal 18 in first short axle 17 On, power is stored by torsion spring 19, can be rebounded rapidly upward after pedal 18 is unclamped, braking state is released, prevents brake assemblies stuck.

The first connecting plate 20 is also hinged with first short axle 17, the middle part of pressure strip 15 is hinged with by the second short axle 21 Second connecting plate 22, the first connecting plate 20 and the second connecting plate 22 are hinged by the 3rd short axle 23.The both sides of fixed plate 14 be provided with Integrally formed starting stave 24, major axis 13 is fixed in fork plate 10 through the starting staves 24 of both sides, and the first of both sides erect Corresponding slotted hole 25 is provided with plate 24, the two ends of the 3rd short axle 23 are slidably disposed in the slotted hole 25 of both sides respectively；Step on Second riser 26 of triangle of the front part sides of plate 18 provided with shaping in conjunction, the angle of the second riser 26 is set to fillet, the One short axle 17 is fixed on starting stave 24 through the second riser 26 of both sides.The utility model is simple in construction, is hardly damaged, the longevity Life length, can be widely applied to all trades and professions, to facilitate conveying articles.

It is described above, simply better embodiment of the present utility model, but the utility model is not limited to above-described embodiment, As long as it reaches technique effect of the present utility model with any same or similar means, protection of the present utility model should be all included in Within the scope of.

Claims (10)

1. a kind of trundle bracket, including square installing plate（1）With the trundle bracket on the downside of it（2）, installing plate（1）Corner open There is mounting hole（3）, it is characterised in that：The installing plate（1）Middle part is downwardly convex and forms a circular groove in upside（4）, institute State groove（4）Center is provided with through hole, the installing plate（1）Downside passes through rivet（5）It is convex that a middle part is fixed with through through hole The bottom plate risen（6）, the trundle bracket（2）Including two fork plates turned forward being oppositely arranged（10）, fork plate（10）End It is provided with castor axis hole（11）, two fork plates（10）It is fixed on bearing plate（7）Both sides, the bearing plate（7）Rotatable dress In installing plate（1）Downside, the fork plate（10）With bearing plate（7）It is made of one piece, the installing plate（1）With bearing plate（7） Between be equipped with dust ring（8）, the bearing plate（7）The upper and lower annular recess staggered provided with vertical direction in inside edge, the peace Fill plate（1）Downside and bottom plate（6）Upside is respectively equipped with recess corresponding with the annular recess of upper and lower side, the bearing plate（7） Some balls are equipped between the annular recess and recess of upper and lower side（9）, the ball（9）Outer loading lithium base grease；Pressure-bearing Plate（7）Outer both sides extend downwardly out fork plate（10）And provided with brake in the brake passage of rear side formation one, the brake passage Component, the brake assemblies are included in two fork plates（10）Inner side passes through major axis（13）It is hinged on fixed plate thereon（14）, it is fixed Plate（14）Front end and bearing plate（7）Lower edge is contacted, major axis（13）On be also hinged with the inclined pressure strip of side-lower backward （15）, pressure strip（15）End is equipped with brake shoes（16）, brake shoes（16）Height and castor axis hole（11）It is concordant and can adjust； Fixed plate（14）Tail end passes through the first short axle（17）It is hinged with pedal（18）, the first short axle（17）It is upper that torsion spring is housed（19）, torsion spring （19）One end is pressed in fixed plate（14）The upper, other end is pressed in pedal（18）On, the first short axle（17）On be also hinged with the first connection Plate（20）, pressure strip（15）Middle part passes through the second short axle（21）It is hinged with the second connecting plate（22）, first connecting plate（20） With the second connecting plate（22）Pass through the 3rd short axle（23）It is hinged.

2. a kind of trundle bracket according to claim 1, it is characterised in that：The fixed plate（14）Both sides be provided with one of Body formed starting stave（24）, the major axis（13）Through the starting stave of both sides（24）It is fixed on fork plate（10）On, both sides Starting stave（24）On be provided with corresponding slotted hole（25）, the 3rd short axle（23）Two ends be slidably disposed at two respectively The slotted hole of side（25）It is interior.

3. a kind of trundle bracket according to claim 2, it is characterised in that：The pedal（18）Front part sides are provided with therewith Second riser of integrally formed triangle（26）, the second riser（26）Angle be set to fillet, the first short axle（17）Through two Second riser of side（26）It is fixed on starting stave（24）On.

4. according to a kind of any described trundle bracket of claims 1 to 3, it is characterised in that：The brake shoes（16）Friction Point to fork plate in portion（10）Castor axis hole（11）, and brake when with castor axis hole（11）In sustained height.

5. a kind of trundle bracket according to claim 4, it is characterised in that：The brake shoes（16）It is inverted and is screwed onto for one Pressure strip（15）On mushroom screw rod, its friction portion surface be provided with some annular friction stripeds.

6. a kind of trundle bracket according to claim 5, it is characterised in that：The pedal（18）Tail down tilts 30 °.

7. a kind of trundle bracket according to claim 1, it is characterised in that：The dust ring（8）Adopt made of plastic, its Section is T font structures, and it inserts installing plate（1）And bearing plate（7）Between and it is intimate contact therewith.

8. a kind of trundle bracket according to claim 7, it is characterised in that：The groove（4）Built with plastic material Groove lid（12）, groove lid（12）Upper surface and installing plate（1）Upper surface is concordant.

9. a kind of trundle bracket according to claim 8, it is characterised in that：The bearing plate（7）The annular recess of downside Positioned at bearing plate（7）On the inside of the annular recess of upside, i.e., the circle diameter of the annular recess of downside is less than the annular recess of upside Circle diameter.

10. a kind of trundle bracket according to claim 9, it is characterised in that：The bearing plate（7）The ball of upside（9） Diameter is more than the ball of downside（9）Diameter.