CN209365764U - A kind of direction-caster of strap brake - Google Patents

Abstract

The utility model discloses a kind of direction-casters of strap brake, belong to castor field.A kind of direction-caster of the strap brake of the utility model, including bracket and idler wheel, the direction-caster further includes brake assemblies, brake assemblies include brake block and the brake lever for driving brake block to move, one end of brake block is connected by support plate and bracket, and the free end of brake block is between bracket and idler wheel, brake lever is rotatably connected with bracket, and one end of brake lever passes through bracket from the side of bracket and extends to brake block position, the end of brake lever is contacted with brake block or there are gaps, when brake, brake lever contacts with brake block and the free end of brake block is pressed on idler wheel, furthermore, the limiting section for limiting brake lever rotational angle is additionally provided between brake lever and bracket.The direction-caster of the utility model, tramples light, and the pedal force for the needs that brake is smaller, and the direction-caster brakes steady reliable, good braking effect.

Description

A kind of direction-caster of strap brake

Technical field

The utility model relates to a kind of castors, more specifically to a kind of direction-caster of strap brake.

Background technique

A few days ago, castor has been widely used in industrial production, hospital, Shang Chao and daily life, and castor mainly includes Universal caster wheel and direction-caster, universal caster wheel can allow for rotating, and direction-caster does not have rotational structure then, can not freely turn Dynamic, in actual use, either universal caster wheel or direction-caster require cooperation brake often to use, existing foot In wheel, have the universal caster wheel type of brake more, and direction-caster is then seldom with brake.

Existing part direction-caster is with brake, and such as number of patent application CN201720123457.0, authorized announcement date is On September 26th, 2017, utility model title are as follows: a kind of flat wheel of HP orientation band brake.It is flat that this application is related to a kind of HP orientation band brake Wheel, it includes the flat wheel ontology of orientation band brake, which stops flat wheel ontology by orientation bracket, wheel, brake block, rivet, brake Packet composition；The orientation bracket is made of support plate with the support arm that support planar bottom surface two sides are arranged in；The orientation bracket Two sides support arm bottom between be provided with wheel, wheel side is provided with brake block, by rivet wheel, brake block rivet On orientation bracket；The brake block sheet body triangular in shape, the two sides of the right-angle surface of triangle sheet body are respectively arranged with the position NO With the position OFF；On the orientation bracket, brake packet is provided at rivet outboard end.The flat wheel of orientation band brake of this application passes through Brake packet on bracket reduces the distance of orientation two feet of bracket wheel is stepped up to realize brake function, although the structure It can be realized brake, still, the structure is unreliable to the braking of wheel, can not realize brake solid and reliablely, also, reduce The distance for orienting two feet of bracket needs biggish strength, and the pedal force that when brake needs is larger, so that the orientation of this kind of structure The flat wheel use of band brake is very inconvenient, meanwhile, after long-time service, due to needing to orient the distance of two feet of bracket repeatedly, orient Bracket is easily damaged.

Summary of the invention

1. utility model technical problems to be solved

For direction-caster above shortcomings in the prior art, the utility model provides a kind of orientation of strap brake Castor, the direction-caster is simple to operate, tramples light, and the pedal force for the needs that brake is smaller, and brake assemblies are easy to use fast Victory, and steady reliable, the good braking effect of direction-caster brake.

2. technical solution

In order to achieve the above objectives, technical solution provided by the utility model are as follows:

A kind of direction-caster of strap brake of the utility model, including bracket and idler wheel, the idler wheel are mounted on bracket On, which further includes brake assemblies, and the brake assemblies include brake block and the brake for driving brake block to move Vehicle bar, one end of the brake block are connected by support plate and bracket, and the free end of the brake block be located at bracket with Between idler wheel, the brake lever is rotatably connected with bracket, and one end of the brake lever passes through branch from the side of bracket Frame extends to brake block position, and the end of the brake lever contacts with brake block or there are gap, described when brake Brake lever rotation, and the brake lever contacts with brake block and the free end of brake block is pressed on idler wheel, described The limiting section for limiting brake lever rotational angle is additionally provided between brake lever and bracket.

Further, the brake lever includes trampling bar and the compression bar connected with bar is trampled, and described tramples bar position In side face outside, in order to trample, the compression bar by bracket side wall pass through across bracket.

Further, the bracket includes the support arm installed plate and installation plate two sides are arranged in, the rolling Wheel and brake block are respectively positioned between two support arms.

Further, the compression bar runs through two support arms of bracket, and the compression bar includes hold-down segment and construction section, institute That states is equipped with the mounting hole cooperated with construction section far from the support arm for trampling bar side, and the construction section passes through mounting hole and branch Arm is rotatably connected.

Further, the limiting section includes the limit hole on the support arm of bracket, and the compression bar passes through limit Position hole simultaneously rotates in limit hole, and the limit hole is equipped with the first rib and the second rib, to limit compression bar respectively Counterclockwise and rotate clockwise angle.

Further, the cross-sectional shape of the compression bar is in long strip.

Further, the cross-sectional shape of the compression bar is cydariform.

Further, the free end inward curl of the brake block is at arc-shaped, when brake, the brake block circle The free end of arcuation is pressed on idler wheel.

Further, the brake block is equipped with the turning close towards idler wheel, and when brake, the turning is pressed on On idler wheel.

3. beneficial effect

It is had the following beneficial effects: compared with existing well-known technique using technical solution provided by the utility model

(1) direction-caster of a kind of strap brake of the utility model, the direction-caster are equipped with brake assemblies, the brake assemblies Brake block movement is driven by brake lever to make brake block be pressed on the mode on idler wheel and realize braking to idler wheel, operation letter Folk prescription just, is trampled light, and the pedal force for the needs that brake is smaller, and brake assemblies are convenient to use.

(2) direction-caster of a kind of strap brake of the utility model is also set between the brake lever and bracket of the direction-caster There is the limiting section for limiting brake lever rotational angle, which can be avoided brake lever inordinate rotation, so as to avoid Brake lever excessively compresses brake block, plays protective effect, brake block long service life to brake block.

(3) direction-caster of a kind of strap brake of the utility model, the compression bar of the direction-caster run through two support arms of bracket, The compression bar includes hold-down segment and construction section, is equipped with the mounting hole cooperated with construction section, installation far from the support arm for trampling bar side Section is rotatably connected by mounting hole and support arm, which connect reliably with bracket, compression bar stability of rotation, and brake is steady reliable.

(4) direction-caster of a kind of strap brake of the utility model, the limiting section of the direction-caster include being set to bracket Limit hole on support arm, the limit hole are equipped with the first rib and the second rib, counterclockwise and clockwise to limit compression bar respectively Rotational angle, when compression bar encounters the first rib and the second rib, compression bar is limited, and can not be further continued for rotating, the limit Portion's structure is simple, good limit effect.

(5) direction-caster of a kind of strap brake of the utility model, the cross-sectional shape of the compression bar of the direction-caster are drum Shape, the compression brake block that the compression bar of the cydariform can be solid and reliable, and the side of compression bar are arc, when brake lever rotates When, the side of the arc can facilitate the rotation of compression bar.

(6) direction-caster of a kind of strap brake of the utility model, the free end of the brake block of the direction-caster is to curls inward Song is at arc-shaped, and when brake, the free end of brake block arc-shaped is pressed on idler wheel, meanwhile, which is additionally provided with towards rolling Take turns close turning, when brake, turning is pressed on idler wheel, which can contact with idler wheel at two and be braked, right The braking effect of idler wheel is more preferable.

Detailed description of the invention

Fig. 1 is a kind of overall structure schematic front view of the direction-caster of strap brake of the utility model；

Fig. 2 is that a kind of direction-caster of strap brake of the utility model omits the schematic top plan view after idler wheel；

Fig. 3 is a kind of overall structure left view schematic diagram of the direction-caster of strap brake of the utility model；

Fig. 4 is the overall structure schematic front view of the bracket and idler wheel in the utility model；

Fig. 5 is the overall structure diagram of the brake lever in the utility model；

Fig. 6 is the A-A schematic cross-sectional view in Fig. 2；

Fig. 7 is the overall structure diagram of the limit hole in the utility model；

Fig. 8 is the limit schematic diagram of the limit hole in the utility model.

Label declaration in schematic diagram:

1, bracket；2, idler wheel；3, brake block；31, turning；32, free end；4, brake lever；41, bar is trampled；42, compression bar； 421, hold-down segment；422, construction section；5, support plate；6, anti-return nut；7, limit hole；71, the first rib；71, the second rib.

Specific embodiment

For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Embodiment

In conjunction with shown in Fig. 1 to Fig. 8, a kind of direction-caster of strap brake of the present embodiment, including bracket 1 and idler wheel 2, idler wheel 2 are mounted on bracket 1, it should be noted that the direction-caster of the present embodiment further includes brake assemblies, which includes stopping Vehicle piece 3 and brake lever 4 for driving brake block 3 to move, wherein one end of brake block 3 is connected by support plate 5 and bracket 1, And the free end 32 of brake block 3, between bracket 1 and idler wheel 2, brake lever 4 is rotatably connected with bracket 1, and brake lever 4 One end passes through bracket 1 from the side of bracket 1 and extends to 3 position of brake block, the end for the brake lever 4 being somebody's turn to do and brake block 3 Contact or there are gap, when brake, brake lever 4 is rotated, and brake lever 4 is contacted with brake block 3 and by the free end of brake block 3 32 It is pressed on idler wheel 2.

Specifically, the bracket 1 of the present embodiment includes installation plate 11 and the support arm 12 for installing 11 two sides of plate is arranged in, on The idler wheel 2 stated and brake block 3 are respectively positioned between two support arms 12, and idler wheel 2 is rotatably connected with 12 lower end of support arm and (mentions in the present embodiment And expression the word in orientation is for orientation when direction-caster is in use state up and down, be relative to idler wheel For 2 state when falling on bottom surface), installation 11 bottom of plate is connected with support plate 5,5 one end of support plate and installation plate 11 It is fixedly connected, above-mentioned, one end of brake block 3 is fixedly connected with the other end of support plate 5, it is preferable that brake block 3 and board 5 are fixedly connected using rivet, and support plate 5 can make to reserve certain gap, and energy between brake block 3 and installation plate 11 Enough make brake block 3 close to idler wheel 2.Above-mentioned brake lever 4 include for for user trample trample bar 41 and with trample bar 41 Connected compression bar 42 tramples bar 41 and compression bar 42 is driven to rotate, 1 lateral outer of bracket that bar 41 is located at trampled, in order to step on Step on, compression bar 42 is passed through by the side wall of bracket 1 across bracket 1, as shown in Figure 1, Figure 2 and shown in Fig. 5, compression bar 42 from support arm 12 outside Side passes through the side wall of support arm 12, extends to 3 position of brake block, and after compression bar 42 is installed on bracket 1, compression bar 42, which is located at, to be stopped The top of vehicle piece 3, that is, be located at installation plate 11 and brake block 3 between, compression bar 42 directly with the upper end face contact of brake block 3, this When, compression bar 42 is only to contact with brake block 3, and there are certain between compressing brake block 3 or compression bar 42 and brake block 3 Gap, when needing to brake, compression bar 42 can contact with brake block 3 and brake block 3 is pressed to downwards on idler wheel 2.It is above-mentioned Trample bar 41 then be located at support arm 12 outside, trample bar 41 and be obliquely installed relative to support arm 12, that is, trample bar 41 far from compression bar The direction that 42 one end is directed away from support arm 12 extends, and enables to trample in this way and reserves certain sky between bar 41 and support arm 12 Gap interferes between bar 41 and support arm 12 to avoid trampling, and can make to trample more convenient, laborsaving, this tramples bar 41 Trample part on the phenomenon that being additionally provided with anti-skid chequer, user capable of being made to trample more firm, avoid the occurrence of skidding.The present embodiment Bar 41 of trampling be used cooperatively with compression bar 42, drive the movement of brake block 3 to making brake block 3 be pressed on idler wheel 2, so that brake Operate simpler convenience, trample it is light, meanwhile, the pedal force of brake assemblies through this embodiment, the needs that brake is smaller, stop Vehicle component is convenient to use.

Further, the compression bar 42 of the present embodiment runs through two support arms 12 of bracket 1, which includes 421 He of hold-down segment Construction section 422 is equipped with the mounting hole cooperated with construction section 422 far from the support arm 12 for trampling 41 side of bar, and construction section 422 passes through Mounting hole is rotatably connected with support arm 12, as shown in Fig. 2, construction section 422 is connected with anti-return nut 6, retaining after passing through support arm 12 Nut 6 can prevent construction section 422 from slipping from the mounting hole of support arm 12, compression bar 42 can be made to rotate relatively reliable.Due to pressure Bar 42 is through two support arms 12 of bracket 1, thus support arm 12 plays certain supporting role to the both ends of compression bar 42, compression bar 42 separate one end for trampling bar 41 will not occur to tilt or sagging situation, compression bar 42 are connect reliably with bracket 1, and compression bar 42 rotates Steadily, brake is steady reliable.

During trampling the drive rotation of compression bar 42 of bar 41, the rotation center of compression bar 42 remains constant, this implementation The compression bar 42 of example uses cam mechanism working principle, during compression bar 42 rotates, between the end face and brake block 3 of compression bar 42 Distance can change, so that compression bar 42 can be realized the compression and relieving to brake block 3, as shown in figs. 1,2 and 6, The cross-sectional shape of the compression bar 42 of the present embodiment is in long strip, and as a preferred embodiment, the cross-sectional shape of the compression bar 42 is Cydariform, upper and lower ends are plane, and the left and right sides is cambered surface raised outward, and in the state of not braking, compression bar 42 is put down Surface side is contacted with brake block 3 or there are certain distances, when compression bar 42 rotates, the cambered surface of 42 side of compression bar gradually with brake Vehicle piece 3 contacts, and since two planes and the distance between the rotation center of compression bar 42 up and down of compression bar 42 are smaller, and compression bar 42 is left The cambered surface of right two sides is then larger with the distance between the rotation center of compression bar 42, thus, after compression bar 42 rotates, compression bar 42 is meeting Brake block 3 is driven to move downward, until brake block 3 is pressed on idler wheel 2.The compression bar 42 of the cydariform can be solid and reliable compression Brake block 3, and since the side of compression bar 42 is arc, when brake lever 42 rotates, the side of the arc can facilitate The rotation of compression bar 42, can be avoided compression bar 42 occur it is stuck.

Further, 32 inward curl of free end of above-mentioned brake block 3 is at arc-shaped, when brake, 3 circular arc of brake block The free end 32 of shape is pressed on idler wheel 2, it should be noted that the brake block 3 of the present embodiment be there is certain elasticity, and Above-mentioned brake block 3 and compression bar 42 is all to have certain width.The free end 32 of brake block 3 is along in place towards 2 institute of idler wheel The direction curling set, forms arc-shaped, and the free end 32 of brake block 3 crimps the free end 32 that can adjust brake block 3 and idler wheel 2 The distance between, and enhancing the intensity for adjusting the free end 32 of brake block 3, the free end 32 of brake block 3 is applied when increasing brake It is added in power on idler wheel 2, so that brake block 3 is more preferable to the braking effect of idler wheel 2.In addition, the brake block 3 of the present embodiment is additionally provided with court The close turning 31 of way roller 2, when brake, turning 31 is pressed on idler wheel 2, which is located at the free end 32 of brake block 3 Between the fixing end of brake block 3, after compression bar 42 turns to set position, the end of compression bar 42 is pressed on brake block 3 Free end 32 and turning 31 between position at, the free end 32 and turning 31 of brake block 3 are pressed on idler wheel 2. The brake block 3 of the present embodiment can be contacted with idler wheel 2 at two positions and be braked, more preferable to the braking effect of idler wheel 2, be stopped Vehicle effect is very good.

It should be noted that also being set between the brake lever 4 and bracket 1 of the present embodiment as shown in Fig. 1, Fig. 4, Fig. 7 and Fig. 8 There is the limiting section for limiting 4 rotational angle of brake lever, which can be avoided 4 inordinate rotation of brake lever, so as to keep away Exempt from brake lever 4 and excessively compress brake block 3, protective effect, 3 long service life of brake block are played to brake block 3.Specifically, The limiting section includes the limit hole 7 on the support arm 12 of bracket 1, and above-mentioned compression bar 42 passes through limit hole 7 and in limit hole 7 It rotates, limit hole 7 is equipped with the first rib 71 and the second rib 72, turns counterclockwise and clockwise to limit compression bar 42 respectively Dynamic angle.The center of the limit hole 7 is the rotation center of compression bar 42, and the shape of limit hole 7 is adapted with compression bar 42, limit hole 7 upper and lower ends are cambered surface, which is adapted with the motion profile of 42 left and right ends of compression bar, when compression bar 42 turns to and the When one rib 71 or the second rib 72 are bonded, compression bar 42 can not be further continued for rotating, at this point, compression bar 42 is merely able to again toward opposite Direction movement.The limiting section structure is simple, and good limit effect.

In use, brake block 3 is not contacted with idler wheel 2, and idler wheel 2 can freely occur when brake lever 4 is located at the A of position Rotation, when brake lever 4 turns at the B of position, brake block 3 is pressed on idler wheel 2, and idler wheel 2 is braked, direction-caster In braking state, the size and position B of brake block 3 and brake lever 4 are worked as brake lever 4 and are located at position by calculating gained When setting at B, brake lever 4 will not voluntarily rotate in the case where not by external force, and brake block 3 brakes reliably idler wheel 2, and And in braking state, the one end of the compression bar 42 of brake lever 4 is pressed on brake block 3, and because brake block 3 is that have one Fixed elasticity, thus compression bar 42 can be pushed against in limit hole 7 by brake block 3, compression bar 42 is not susceptible to rotate, and castor is not understanding Braking state is automatically terminated outside, use is very reliable.

One kind of the utility model is simple to operate, tramples light, the pedal force for the needs that brake is smaller, and brake assemblies make With convenient and efficient, and the direction-caster brakes steady reliable, good braking effect, brake block long service life.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, without creatively designing Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (9)

1. a kind of direction-caster of strap brake, including bracket (1) and idler wheel (2), the idler wheel (2) are mounted on bracket (1), It is characterized by also including brake assemblies, the brake assemblies include brake block (3) and for drive brake block (3) move Brake lever (4), one end of the brake block (3) is connected by support plate (5) and bracket (1), and the brake block (3) Free end (32) be located between bracket (1) and idler wheel (2), the brake lever (4) is rotatably connected with bracket (1), and institute The one end for the brake lever (4) stated passes through bracket (1) from the side of bracket (1) and extends to brake block (3) position, described The end of brake lever (4) contacts with brake block (3) or there are gap, when brake, the brake lever (4) rotation, and it is described Brake lever (4) is contacted with brake block (3) and the free end of brake block (3) (32) is pressed on idler wheel (2), the brake lever (4) limiting section for limiting brake lever (4) rotational angle is additionally provided between bracket (1).

2. a kind of direction-caster of strap brake according to claim 1, it is characterised in that: the brake lever (4) includes Trample bar (41) and the compression bar (42) connected with bar (41) are trampled, described bracket (1) lateral outer trampling bar (41) and being located at, In order to trample, the compression bar (42) is passed through by the side wall of bracket (1) across bracket (1).

3. a kind of direction-caster of strap brake according to claim 2, it is characterised in that: the bracket (1) includes peace Plate (11) and setting are filled in the support arm (12) of installation plate (11) two sides, the idler wheel (2) and brake block (3) are respectively positioned on two Between support arm (12).

4. a kind of direction-caster of strap brake according to claim 3, it is characterised in that: the compression bar (42) is through branch Two support arms (12) of frame (1), the compression bar (42) include hold-down segment (421) and construction section (422), described far from trampling bar (41) support arm (12) of side is equipped with the mounting hole cooperated with construction section (422), and the construction section (422) passes through mounting hole It is rotatably connected with support arm (12).

5. a kind of direction-caster of strap brake according to claim 3, it is characterised in that: the limiting section includes being set to Limit hole (7) on the support arm (12) of bracket (1), the compression bar (42) pass through limit hole (7) and occur in limit hole (7) Rotation, the limit hole (7) are equipped with the first rib (71) and the second rib (72), counterclockwise to limit compression bar (42) respectively With rotate clockwise angle.

6. a kind of direction-caster of strap brake according to claim 2~5 any one, it is characterised in that: the pressure The cross-sectional shape of bar (42) is in long strip.

7. a kind of direction-caster of strap brake according to claim 6, it is characterised in that: the compression bar (42) it is transversal Face shape is cydariform.

8. a kind of direction-caster of strap brake according to claim 1, it is characterised in that: the brake block (3) from By holding (32) inward curl at arc-shaped, when brake, the free end (32) of the brake block (3) arc-shaped is pressed on idler wheel (2) on.

9. a kind of direction-caster of strap brake according to claim 1 or 8, it is characterised in that: the brake block (3) Equipped with the turning (31) close towards idler wheel (2), when brake, the turning (31) are pressed on idler wheel (2).