CN210055841U - Universal caster and toilet chair with same - Google Patents

Abstract

The utility model provides a universal caster and install toilet seat chair of this universal caster relates to truckle technical field, include: the swinging mechanism is arranged at the bottom of the supported object through a vertically arranged swinging shaft; the roller is arranged on the swinging mechanism through a rotating shaft which is horizontally arranged and can be driven by the swinging mechanism to roll on the ground; the stop rod is arranged in the swinging shaft in parallel with the axis of the swinging shaft and can slide up and down in the swinging shaft along the vertical direction; the pedal is rotatably arranged on the supported object and can swing up and down; the lower end of the stop rod is provided with a friction surface which is suitable for being abutted against the roller. The utility model provides a universal caster and toilet seat chair have locking action convenient operation, do not receive the influence of truckle swing angle, still have durable, advance advantage such as in the same direction as smooth, stability height simultaneously.

Description

Universal caster and toilet chair with same

Technical Field

The utility model relates to a truckle technical field, concretely relates to universal caster and install toilet seat chair of this universal caster.

Background

The universal caster is a common part in daily life, and is usually mounted on a chair, a baby crib, a nursing chair, a nursing bed and other facilities, so that the facilities can be moved in a universal manner conveniently and flexibly. The known caster wheels are generally provided with a locking structure, and the universal wheels can be locked by the locking structure so as to be incapable of rotating, so that the stability of the equipment without moving is improved.

Known locking arrangements typically include a pedal and a friction pad or pad connected to the pedal, which pad may be brought into abutment with the castor by depressing the pedal, thereby providing a locking effect on the castor.

However, since the caster still swings to achieve the steering function in the rolling process, the pedal swings synchronously along with the caster in the swinging process, sometimes, the pedal swings to the position below the supported object mounted on the pedal along with the caster, the foot cannot normally touch the pedal at the moment, if the caster is locked, the supported object needs to be lifted, then the caster is rotated out, and the pedal can be smoothly trodden from the bottom of the supported object. It follows that the locking function of the caster is inconvenient in actual use.

Disclosure of Invention

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the locking function of the universal castor among the prior art convenient defect inadequately when in-service use, and then provides one kind and can carry out the universal castor of more convenient locking.

Another technical problem to be solved by the utility model is to provide a toilet seat chair with more convenient locking function.

Therefore, the utility model provides a technical scheme as follows:

a caster, comprising:

the swinging mechanism is arranged at the bottom of the supported object through a vertically arranged swinging shaft;

the roller is arranged on the swinging mechanism through a rotating shaft which is horizontally arranged and can be driven by the swinging mechanism to roll on the ground;

the central lines of the rotating shaft and the swinging shaft are not in the same plane;

further comprising:

the stop rod is arranged in the swinging shaft in parallel with the axis of the swinging shaft and can slide up and down in the swinging shaft along the vertical direction;

the pedal is rotatably arranged on the supported object and can swing up and down;

the lower end of the stop rod is provided with a friction surface which is suitable for being abutted against the roller; the upper end of the stop rod extends out of the swing shaft to be in contact with the pedal and is suitable for bearing the pressure of the pedal when the pedal swings downwards to move downwards to push the friction surface of the stop rod to be abutted against the roller.

Preferably, the stop lever is arranged coaxially with the pivot axis.

As a preferable technical scheme, the inner end of the pedal is hinged on the supported object, a first swinging tooth is arranged on the pedal close to the hinged shaft, and the first swinging tooth is suitable for swinging along with the pedal when the outer end of the pedal swings downwards and pressing the stop rod downwards in the swinging process.

Preferably, a second swing tooth is arranged on the pedal at a position close to the first swing tooth, and the second swing tooth is suitable for preventing the pedal from continuing to rotate after the first swing tooth finishes pressing down the stop rod.

In a preferred embodiment, a return spring is mounted on an upper portion of the stopping rod, and the return spring is adapted to provide an elastic force to the stopping rod when the stopping rod is pressed to move downward.

As a preferable aspect, the swing mechanism includes:

the base body is provided with a rotating shaft suitable for being hinged with the roller;

the swinging shaft is vertically arranged on the base body, and the upper section of the swinging shaft is rotatably arranged on the supported object.

As a preferable technical solution, the swing mechanism further includes:

the sliding sleeve is fixedly arranged on the supported object, and the upper section of the swinging shaft is clamped in the sliding sleeve and can rotate in the sliding sleeve.

As a preferred technical scheme, the middle section of the swinging shaft is provided with an annular bulge, and the annular bulge is clamped between the seat body and the sliding sleeve.

As a preferable technical solution, the swing mechanism further includes:

the gasket is arranged between the annular bulge and the seat body;

the lower section of the swing shaft is clamped into the seat body and rotates in the seat body.

As a preferable technical solution, the swing mechanism further includes:

and the thrust bearing is arranged between the annular bulge and the sliding sleeve and is suitable for bearing the extrusion between the sliding sleeve and the annular bulge.

As a preferable technical scheme, the outer end of the pedal is provided with an anti-slip surface.

The universal caster in any technical scheme is installed at the bottom of the potty chair.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an including a universal caster among the technical scheme, include: the swinging mechanism is arranged at the bottom of the supported object through a vertically arranged swinging shaft; the roller is arranged on the swinging mechanism through a rotating shaft which is horizontally arranged and can be driven by the swinging mechanism to roll on the ground; the central lines of the rotating shaft and the swinging shaft are not in the same plane; the stop rod is arranged in the swinging shaft in parallel with the axis of the swinging shaft and can slide up and down in the swinging shaft along the vertical direction; the pedal is rotatably arranged on the supported object and can swing up and down; the lower end of the stop rod is provided with a friction surface which is suitable for being abutted against the roller; the upper end of the stop rod extends out of the swing shaft to be in contact with the pedal and is suitable for bearing the pressure of the pedal when the pedal swings downwards to move downwards to push the friction surface of the stop rod to be abutted against the roller. The universal caster comprises a caster body, a support, a swinging mechanism, a swinging shaft, a rotating shaft. When the roller needs to be locked and stopped, the pedal is stepped downwards, so that the pedal pushes the stop rod downwards, and the friction surface at the lower end of the stop rod is abutted against the roller to play a stopping role. In the process, the stop rod is arranged in the swinging shaft, so that the stop rod is positioned below the stop rod no matter the roller swings at any angle, and the stop rod can synchronously rotate along with the swinging shaft, so that the roller can be stopped whenever the stop rod is pressed down. Simultaneously, the upper segment of footboard and locking lever is only contact state, when the locking lever takes place to rotate along with the pendulum shaft, can not drive the footboard and move to because the locking lever setting is in the pendulum shaft, the rotation of locking lever also can not lead to it to leave from the footboard below, whenever pushes down the footboard and can both play the locking effect. Most importantly, the pedal is arranged on the supported object, so that the pedal cannot swing along with the roller no matter the roller swings to any angle, the pedal is guaranteed to be always located at the same position, and the pedal can be conveniently pressed down at any time.

2. The utility model provides an among the technical scheme, the stop lever sets up with the oscillating axle is coaxial. When the stop lever and the swinging shaft are coaxially arranged, the stop lever only rotates around the self axis when rotating along with the swinging shaft and cannot rotate around the axis of the swinging shaft, so that the stop lever rotates in the minimum movement range, the mutual friction degree between the stop lever and the pedal is minimum, and the pedal is more convenient to align to the center of the stop lever when being pressed down.

3. The utility model provides an among the technical scheme, the position that is close to first pendulum tooth on the footboard is provided with the second and puts the tooth, the second is put the tooth and is suitable for and stops the footboard to continue to rotate after first pendulum tooth is accomplished pushing down to the locking lever. The pedal can be limited by the second swing tooth, and the locking effect is prevented from being influenced by excessive rotation of the pedal; on the other hand, the tip of the first swing tooth and the tip of the second swing tooth can be in two-point contact with the upper end of the stop rod, and the stability is higher.

4. The utility model provides an among the technical scheme, reset spring is installed on the upper portion of locking lever, reset spring is suitable for and provides elasticity at the rising of locking lever pressurized downstream back stop lever. By utilizing the return spring, the friction surface of the stop rod can be lifted away from the surface of the roller when the pedal does not apply pressure to the stop rod, and the roller can be ensured not to be influenced by movies and games when normally running.

5. The utility model provides an among the technical scheme, swing mechanism still includes: the sliding sleeve is fixedly arranged on the supported object, and the upper section of the swinging shaft is clamped in the sliding sleeve and can rotate in the sliding sleeve. This can avoid the oscillating axle directly to carry out the contact with by the support and harm oscillating axle or by the support, can also provide the structural foundation for reducing the coefficient of friction between oscillating axle and the sliding sleeve simultaneously.

6. The utility model provides an among the technical scheme, the middle section of oscillating axle is provided with the annular arch, the annular arch presss from both sides between pedestal and sliding sleeve. This can prevent that sliding sleeve and pedestal from producing direct friction and damaging sliding sleeve or pedestal, can also fix a position the position of the vertical direction of swing axle simultaneously, avoids the swing axle to slide downwards along the mounting hole on the pedestal.

7. In the technical scheme provided by the utility model, the gasket is arranged between the annular bulge and the seat body; the lower section of the swing shaft is clamped into the seat body and rotates in the seat body. The friction force between the seat body and the swing shaft in the vertical direction can be reduced through the gasket, and the seat body and the swing shaft are protected.

8. The utility model provides an among the technical scheme, swing mechanism still includes: and the thrust bearing is arranged between the annular bulge and the sliding sleeve and is suitable for bearing the extrusion between the sliding sleeve and the annular bulge. The thrust bearing provides minimum friction for the contact between the sliding sleeve and the swinging shaft, so that the driven steering of the universal wheel is smoother.

9. The utility model provides an among the technical scheme, still include a toilet seat chair, any one in the above-mentioned technical scheme universal caster is installed to toilet seat chair's bottom. The universal caster wheel has all the advantages of the universal caster wheel because the universal caster wheel is installed.

To sum up, the utility model provides a universal caster and toilet seat chair have locking action convenient operation, do not receive the influence of truckle swing angle, still have durable, advance advantage such as in the same direction as smooth, stability height simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a caster provided in embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of the caster shown in FIG. 1;

FIG. 3 is an exploded view of the caster shown in FIG. 1;

FIG. 4 is a perspective view of a potty chair provided in embodiment 2 of the present invention;

description of reference numerals:

the device comprises a roller 1, a rotating shaft 2, a swinging shaft 3, an annular bulge 31, a pedal 4, a first swinging tooth 41, a second swinging tooth 42, a stop rod 5, a return spring 6, a seat body 7, a gasket 8, a thrust bearing 9 and a sliding sleeve 10.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1:

as shown in fig. 1 to 3, for embodiment 1 of the present invention, this embodiment provides a universal caster, as described in the background art, when the pedal 4 is used to lock the caster, the rotation of the caster easily causes the pedal 4 to rotate to the bottom of the supported object, and then the foot can not step on the pedal 4 smoothly. The universal caster that this embodiment provided can be fine solution this problem.

The universal caster that this embodiment provided includes: the swing mechanism is installed at the bottom of the supported object through a vertically arranged swing shaft 3, and the swing mechanism in the embodiment specifically comprises: the base body 7 is provided with a rotating shaft 2 which is suitable for being hinged with the roller 1; the swinging shaft 3 is vertically arranged on the base body 7, and the upper section of the swinging shaft 3 is rotatably arranged on a supported object; the roller 1 is arranged on the swing mechanism through a rotating shaft 2 which is horizontally arranged and can roll on the ground under the driving of the swing mechanism; the central lines of the rotating shaft 2 and the swinging shaft 3 are not in the same plane; a stop lever 5 which is provided in the swing shaft 3 in parallel with the axis of the swing shaft 3 and can slide up and down in the swing shaft 3 in the vertical direction; the pedal 4 is rotatably arranged on the supported object and can swing up and down; the lower end of the stop rod 5 is provided with a friction surface which is suitable for being abutted against the roller 1; the upper end of the stop rod 5 extends out of the swing shaft 3 and is in contact with the pedal 4, and the stop rod is suitable for bearing the pressure of the pedal 4 when the pedal 4 swings downwards to move downwards so as to push the friction surface of the stop rod 5 to abut against the roller 1.

The working process of the universal caster comprises that when a supported object is pushed, the swinging mechanism drives the roller 1 to move, and because the central lines of the swinging shaft 3 and the rotating shaft 2 of the roller 1 are not in the same plane, the roller 1 can have a component force for steering and advancing under the driving of the swinging shaft 3 and can be driven to rotate universally with the supported object. When the roller 1 needs to be locked and stopped, the pedal 4 is stepped downwards, and then the pedal 4 pushes the stop rod 5 downwards, and the friction surface at the lower end of the stop rod 5 is abutted with the roller 1 to play a stopping role. In the above process, since the stop lever 5 is disposed in the swing shaft 3, the stop lever 5 is located below the stop lever 5 whenever the roller 1 swings at any angle, and the stop lever 5 also rotates synchronously with the swing shaft 3, it is ensured that the roller 1 can be stopped whenever the stop lever 5 is pressed down. Meanwhile, the upper sections of the pedal 4 and the stop rod 5 are only in a contact state, when the stop rod 5 rotates along with the swing shaft 3, the pedal 4 cannot be driven to move, and the stop rod 5 is arranged in the swing shaft 3, so that the stop rod 5 cannot be driven to leave from the lower part of the pedal 4 due to rotation of the stop rod 5, and a stop effect can be achieved whenever the pedal 4 is pressed down. Most importantly, because footboard 4 is installed on by the support, therefore no matter gyro wheel 1 swings to any angle, footboard 4 can not follow it and take place the swing, has just also guaranteed that footboard 4 can be in same position all the time, guarantees that footboard 4 can carry out convenient pushing down at any time.

In the present embodiment, the stopper rod 5 is disposed coaxially with the swing shaft 3. When the stop lever 5 is arranged coaxially with the swing shaft 3, the stop lever 5 rotates only around its own axis when following the rotation of the swing shaft 3, and does not rotate around the axis of the swing shaft 3, so that the stop lever 5 rotates at this time with a minimum movement range, the mutual friction degree with the pedal 4 is minimum, and the pedal 4 is more conveniently aligned with the center of the stop lever 5 when being pressed down.

The pedal 4 in this embodiment is specifically configured as follows, the inner end of the pedal 4 is hinged on the supported object, a first swing tooth 41 is arranged on the pedal 4 near the hinged shaft, and the first swing tooth 41 is suitable for swinging along with the pedal 4 when the outer end of the pedal 4 swings downwards and pressing the stop rod 5 downwards during swinging. A second swing tooth 42 is arranged on the pedal 4 at a position close to the first swing tooth 41, and the second swing tooth 42 is suitable for preventing the pedal 4 from further rotating after the first swing tooth 41 finishes pressing the stop rod 5.

The working process of the pedal 4 is that the outer end of the pedal 4 is stepped, at the moment, the pedal 4 rotates around the hinge shaft to drive the first swing tooth 41 and the second swing tooth 42 to swing, the first swing tooth 41 changes from an inclined state to a vertical state in the rotating process, so that the top end of the stop rod 5 is pressed against the top end of the stop rod, at the moment, the second swing tooth 42 is stepped downwards to contact with the top end of the stop rod 5, the pedal 4 is prevented from continuing to rotate, and the foot can obtain pressure feedback in the process. The second swing tooth 42 can limit the pedal 4, and prevent the pedal 4 from rotating too much to affect the locking effect; on the other hand, the tip of the first swing tooth 41 and the tip of the second swing tooth 42 can be in two-point contact with the upper end of the stop rod 5, and the stability is higher.

In order to ensure that the stopping rod 5 can be reset smoothly after the locking action is finished, a return spring 6 is installed on the upper part of the stopping rod 5, and the return spring 6 is suitable for providing elastic force for the rising of the stopping rod 5 after the stopping rod 5 is pressed to move downwards. By using the return spring 6, the friction surface of the stop rod 5 can be lifted off from the surface of the roller 1 when the pedal 4 does not apply pressure to the stop rod 5, and the roller 1 is ensured not to be influenced by the video game in normal running.

The swing mechanism in this embodiment specifically includes: the base body 7 is provided with a rotating shaft 2 which is suitable for being hinged with the roller 1; the swinging shaft 3 is vertically arranged on the base body 7, and the upper section of the swinging shaft 3 is rotatably arranged on a supported object.

In order to make the swinging of the caster smoother, the swinging mechanism further comprises: and the sliding sleeve 10 is fixedly arranged on a supported object, and the upper section of the swinging shaft 3 is clamped into the sliding sleeve 10 and can rotate in the sliding sleeve 10. This can prevent the swing shaft 3 from directly contacting the supported object to damage the swing shaft 3 or the supported object, and can provide a structural basis for reducing the friction coefficient between the swing shaft 3 and the sliding sleeve 10. The smoothness of the action can be further improved by adding lubricating oil into the sliding sleeve 10 and the swinging shaft 3 bracket.

In a further improvement, the middle section of the swing shaft 3 is provided with an annular protrusion 31, and the annular protrusion 31 is clamped between the seat body 7 and the sliding sleeve 10. This can prevent that sliding sleeve 10 and pedestal 7 from producing direct friction and damaging sliding sleeve 10 or pedestal 7, can also fix a position the position of the vertical direction of swing axle 3 simultaneously, avoids swing axle 3 to slide downwards along the mounting hole on the pedestal 7. The gasket 8 is arranged between the annular bulge 31 and the seat body 7; the lower section of the swing shaft 3 is clamped into the seat body 7 and rotates in the seat body 7. The vertical friction between the seat body 7 and the swing shaft 3 can be reduced by the gasket 8, and the seat body 7 and the swing shaft 3 are protected. Further the swing mechanism further comprises: and the thrust bearing 9 is arranged between the annular bulge 31 and the sliding sleeve 10 and is suitable for bearing the extrusion between the sliding sleeve 10 and the annular bulge 31. The thrust bearing 9 provides a minimum friction force for the contact between the sliding sleeve 10 and the swing shaft 3, so that the driven steering of the universal wheel is smoother.

The outer end of the pedal 4 of the embodiment is also provided with an anti-skid surface, so that the friction coefficient of the sole and the pedal 4 can be improved, and treading is prevented.

Example 2:

as shown in fig. 4, in order to provide a commode chair according to embodiment 2 of the present invention, the universal caster of embodiment 1 is installed below the commode chair. The pedal 4 of the universal caster extends out of the shell of the potty chair and is hinged in the shell, the universal caster can be conveniently locked by stepping on the pedal 4, and the position of the pedal 4 is always fixed. Since this embodiment is equipped with the casters as provided in embodiment 1, all the advantages of embodiment 1 are obtained

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (12)

1. A caster, comprising:

the swinging mechanism is arranged at the bottom of the supported object through a vertically arranged swinging shaft;

the roller is arranged on the swinging mechanism through a rotating shaft which is horizontally arranged and can be driven by the swinging mechanism to roll on the ground;

the central lines of the rotating shaft and the swinging shaft are not in the same plane;

it is characterized by also comprising:

the stop rod is arranged in the swinging shaft in parallel with the axis of the swinging shaft and can slide up and down in the swinging shaft along the vertical direction;

the pedal is rotatably arranged on the supported object and can swing up and down;

the lower end of the stop rod is provided with a friction surface which is suitable for being abutted against the roller; the upper end of the stop rod extends out of the swing shaft to be in contact with the pedal and is suitable for bearing the pressure of the pedal when the pedal swings downwards to move downwards to push the friction surface of the stop rod to be abutted against the roller.

2. The caster according to claim 1, wherein said stop lever is disposed coaxially with the oscillation axis.

3. The caster according to claim 1, wherein said pedal is hinged at an inner end thereof to the supported object, and a first swing tooth is provided on the pedal at a position adjacent to the hinge shaft, said first swing tooth being adapted to swing following the pedal when the outer end of the pedal swings downward and pressing the stopper rod downward during the swing.

4. The caster according to claim 3, wherein the pedal is provided with a second swing tooth adjacent to the first swing tooth, the second swing tooth being adapted to prevent the pedal from further rotating after the first swing tooth has pressed the stopper rod.

5. The caster according to claim 4, wherein a return spring is installed at an upper portion of the stopping rod, the return spring being adapted to provide an elastic force to the rising of the stopping rod after the stopping rod is pressed to move downward.

6. The caster according to claim 1, wherein said oscillating mechanism comprises:

the base body is provided with a rotating shaft suitable for being hinged with the roller;

the swinging shaft is vertically arranged on the base body, and the upper section of the swinging shaft is rotatably arranged on the supported object.

7. The caster wheel of claim 6, wherein said swinging mechanism further comprises:

the sliding sleeve is fixedly arranged on the supported object, and the upper section of the swinging shaft is clamped in the sliding sleeve and can rotate in the sliding sleeve.

8. The universal caster wheel according to claim 7, wherein the intermediate section of the swing shaft is provided with an annular protrusion, and the annular protrusion is sandwiched between the seat body and the sliding sleeve.

9. The caster wheel of claim 8, wherein said oscillating mechanism further comprises:

the gasket is arranged between the annular bulge and the seat body;

the lower section of the swing shaft is clamped into the seat body and rotates in the seat body.

10. The caster wheel of claim 8, wherein said oscillating mechanism further comprises:

and the thrust bearing is arranged between the annular bulge and the sliding sleeve and is suitable for bearing the extrusion between the sliding sleeve and the annular bulge.

11. A castor according to any one of claims 1 to 10, wherein the outer end of the foot plate is provided with a non-slip surface.

12. A potty chair, characterized in that the universal caster wheel of any one of claims 1 to 11 is mounted on the bottom of the potty chair.

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