CN109941242B - Foot brake structure - Google Patents

Foot brake structure Download PDF

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Publication number
CN109941242B
CN109941242B CN201711383363.8A CN201711383363A CN109941242B CN 109941242 B CN109941242 B CN 109941242B CN 201711383363 A CN201711383363 A CN 201711383363A CN 109941242 B CN109941242 B CN 109941242B
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CN
China
Prior art keywords
brake
piece
connecting part
foot
arm
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CN201711383363.8A
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CN109941242A (en
Inventor
孙光宇
吴衍
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Huizhou Hydro Caresys Medical Co ltd
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Huizhou Hydro Caresys Medical Co ltd
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Publication of CN109941242A publication Critical patent/CN109941242A/en
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Publication of CN109941242B publication Critical patent/CN109941242B/en
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Abstract

The invention discloses a foot brake structure which comprises a main body assembly, a foot brake assembly, a first brake assembly and a second brake assembly. The first brake component and the second brake component are arranged on the body, the foot brake component controls the first brake component to rotate relative to the second brake component, so that the second brake component is clamped and fixed on the first brake component, and the first brake component pulls the brake structure of the wheel to brake through the brake cable. The pedal of the pedal brake assembly is stepped to brake, and the brake force can be gradually enhanced after the pedal is stepped for more than a plurality of times. The pedal of the foot brake assembly is stepped on to the bottom, so that the braking effect can be reset, namely, the foot brake structure is restored to a state without the braking effect.

Description

Foot brake structure
Technical Field
The invention relates to a brake structure, in particular to a foot brake structure using a foot brake structure.
Background
The brake means a brake mechanism which is changed from a moving state to a stopping state by a wheel-moving device. The main braking principle of the brake is from the friction force between the brake and the rim and the friction force between the tyre skin and the ground, so that the rotation of the wheels of the vehicle is slowed down or even stopped to stop the vehicle. If the wheels of the device are not limited by the brake structure, the friction force between the wheels and the ground is low, the device is easy to be subjected to the action of external force to generate displacement or shake, and the situation is very inconvenient for the structure needing to be positioned, but is quite inconvenient for the carrying device if the wheel structure is removed, so the brake structure is an important structure for equipment moving by the wheels.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is not solved by the conventional technology. The conventional braking structure for pedaling is mostly a structure that is directly locked, so that there is no buffering mechanism under the condition that when the device or equipment carrier is in a moving state, the wheels are suddenly and instantaneously braked (i.e. in a static state), and the moving inertial force directly acts on the device or equipment carrier, which may be influenced by the acting force on the parts inside the precision device or equipment.
In order to solve the above problems, the present invention provides a liquid filling system, comprising: the pedal type bicycle comprises a main body assembly, a pedal assembly, a first brake assembly and a second brake assembly. The main body assembly is provided with a body and a body elastic piece, the body is provided with a first body connecting part and a second body connecting part, one side of the body protrudes out of the first body connecting part, the other side of the body protrudes out of the second body connecting part, and one end of the body elastic piece is connected with the body connecting part; the foot brake assembly is provided with a rod piece and a pedal, the rod piece is pivoted to the body, the pedal is arranged at one end of the rod piece, the other end of the rod piece extends out of the rod piece connecting part and the rod piece limiting part towards two sides respectively, and the other end of the body elastic piece is connected with the rod piece connecting part; the first brake assembly is provided with a first brake piece and a first elastic piece, the first brake piece is arranged at the other end of the rod piece, the first brake piece is provided with a first fixing part and a first connecting part, the first fixing part is positioned at one side of the first brake piece, the first connecting part is positioned at the other side of the first brake piece, one end of the first elastic piece is connected with the first connecting part, and the other end of the first elastic piece is connected with the brake cable; and the second brake assembly is provided with a second brake piece and a second elastic piece, the second brake piece is pivoted on the body, the second brake piece is provided with a second fixing part, a brake limiting part and a second connecting part, the second fixing part is positioned on one side of the second brake piece and is abutted to the first fixing part, the brake limiting part is positioned on the other side of the second fixing part, the brake limiting part is opposite to the rod limiting part, the second connecting part is positioned on one side of the pivot joint position of the second brake piece, one end of the second elastic piece is connected with the second connecting part, and the other end of the second elastic piece is connected with the second body connecting part.
According to an embodiment of the invention, the body elastic member and the first elastic member are tension springs.
According to an embodiment of the invention, the second elastic member is a torsion spring.
According to an embodiment of the present invention, the first fixing portion is a ratchet portion, and the second fixing portion is a pawl portion.
According to an embodiment of the present invention, the second brake member further has a through hole, and the body has a through shaft opposite to the through hole, wherein the through shaft of the body is disposed through the through hole of the second brake member, the outer diameter length of the through shaft is smaller than the length of the long side of the through hole, and the outer diameter length of the through shaft is equal to the length of the short side of the through hole.
According to an embodiment of the present invention, the other end of the second elastic member uses the second body connecting portion of the body as a fulcrum, and the one end of the second elastic member is connected to the second connecting portion and generates an acting force on the second brake member.
According to an embodiment of the present invention, the more the second fixing portion of the second brake member is fixed to the first fixing portion of the first brake member, the greater the braking force is generated.
According to an embodiment of the invention, the wheel brake structure further includes a first brake arm and a second brake arm, the first brake arm is pivoted to the second brake arm, one end of the first brake arm has a first brake block, one end of the second brake arm has a second brake block, the first brake block is opposite to the second brake block, the first brake block is located at one side of the wheel, the second brake block is located at the other side of the wheel, and the brake cable passes through the other end of the first brake arm and is fixed at the other end of the second brake arm.
The invention adopts a progressive braking structure, which gradually strengthens braking force through a first braking component and a second braking component, so that the wheels brake in a gradually stopping rotation mode. The above-mentioned mode can reduce the influence of inertial force produced under the condition of braking on the device or equipment itself.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic perspective view of a brake structure according to the present invention;
FIG. 2 is another perspective view of the brake structure of the present invention;
FIG. 3 is a schematic illustration of a wheel brake configuration of the present invention;
FIG. 4A is a schematic illustration of the braking structure of the present invention;
FIG. 4B is a schematic diagram illustrating another brake structure according to the present invention
FIG. 5 is a second schematic diagram illustrating the braking operation of the brake structure according to the present invention;
FIG. 6 is a schematic diagram illustrating the operation of the brake structure according to the present invention; and
FIG. 7 is a schematic diagram illustrating the operation of the brake structure according to the present invention.
Detailed Description
Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
Fig. 1 to 3 are schematic perspective views of a brake structure, another schematic perspective view and a schematic wheel brake structure of the brake structure according to the present invention. As shown in the figure, the present embodiment provides a brake structure 1 which can be used as a brake structure of a device that moves using wheels. The brake structure 1 of the present embodiment is operated by a pedal. The user can step on the pedal of the foot brake assembly to brake, and can step on for more than a plurality of times to gradually strengthen the braking force. When the pedal of the foot brake assembly is stepped to the bottommost position, the braking effect of the brake structure can be reset, namely the foot brake structure is restored to a state without the braking effect. The brake structure 1 of the present embodiment includes a main body assembly 11, a foot brake assembly 13, a first brake assembly 15, and a second brake assembly 17.
As mentioned above, the main body assembly 11 has a main body 111 and a main body elastic member 113, and the main body 111 has a first main body connecting portion 112 and a second main body connecting portion 114. The body 111 is a plate structure, one side of the body 111 protrudes out of the first body connecting portion 112, which is an extended structure bent ninety degrees outwards from the body 111, the other side of the body 111 is provided with a second body connecting portion 114, and one end of the body elastic member 113 is connected to the first body connecting portion 112, wherein the body elastic member 113 is an extension spring. The pedal assembly 13 has a lever 131 and a pedal 133. The rod 131 is pivoted to the body 111, wherein the rod 131 is in a bent shape. The pedal 133 is disposed at one end of the rod 131, and the pedal 133 is located outside the body 111. The other end of the rod 131 extends to two sides to form a rod connecting portion 132 and a rod limiting portion 134, wherein the rod connecting portion 132 extends to one side of the body 111 opposite to the first body connecting portion 112, and the other end of the body elastic member 113 is connected to the rod connecting portion 132. So that one side of the body 111 and the other end of the rod 131 are connected to each other by the body elastic member 113. The rod limiting portion 134 is located at one side of the rod connecting portion 132.
As mentioned above, the first brake assembly 15 has a first brake member 151 and a first elastic member 153, the first brake member 151 is disposed at the other end of the rod 131, the first brake member 151 has a first fixing portion 152 and a first connecting portion 154, the first fixing portion 152 is located at one side of the first brake member 151, the first connecting portion 154 is located at the other side of the first brake member 151, one end of the first elastic member 153 is connected to the first connecting portion 154, and the other end of the first elastic member 153 is used for connecting the brake cable 2 (please refer to fig. 3). The second brake assembly 17 has a second brake member 171 and a second elastic member 173, the second brake member 171 is pivotally connected to the body 111, and the second brake member 171 has a second fixing portion 172, a brake limiting portion 174 and a second connecting portion 176. The second fixing portion 172 is located at one side of the second brake 171, and the second fixing portion 172 abuts against the first fixing portion 152. The brake limiting portion 174 is located at the other side of the second fixing portion 172, and the brake limiting portion 174 is opposite to the rod limiting portion 134. The second connecting portion 176 is located at one side of the pivot position of the second brake member 171 pivoted to the body 111, one end of the second elastic member 173 is connected to the second connecting portion 176, and the other end of the second elastic member 173 is connected to the second body connecting portion 114. Wherein the second elastic member 173 is a torsion spring.
In addition, the second brake member 171 further has a through hole 170, and the body 111 has a through shaft 110 opposite to the through hole, and the through shaft 110 of the body 111 is disposed through the through hole 170 of the second brake member 171, so that the second brake member 171 can pivot relative to the through shaft 110 of the body 111. In addition, the outer diameter length of the through-shaft 110 is smaller than the long side length of the through-hole 170, and the outer diameter length of the through-shaft 110 is smaller than the short side length of the through-hole 170, so that the through-shaft 110 moves in the through-hole 170, in other words, the second brake 171 can pivot and displace in parallel relative to the body 111.
Referring back to fig. 3, the first elastic member 153 is used for connecting the brake cable 2, and then controlling the braking structure of the wheel through the brake cable 2. In the present embodiment, the wheel braking structure 3 includes a first braking arm 31 and a second braking arm 33, the first braking arm 31 is pivoted to the second braking arm 33, one end of the first braking arm 31 has a first braking block 32, one end of the second braking arm 33 has a second braking block 34, the first braking block 32 is opposite to the second braking block 34, and the first braking block 32 is located on one side of the wheel 35, and the second braking block 34 is located on the other side of the wheel 35. The brake cable 2 passes through the other end of the first brake arm 31 and is fixed to the other end of the second brake arm 33. When the brake cable 2 is pulled, the second brake arm 33 is driven to pivot relative to the first brake arm 31, so that the first brake block 32 moves relative to the second brake block 34, the first brake block 32 abuts against the side surface of the wheel 35, and the second brake block 34 abuts against the wheel 3. Thus, the rotation of the wheel 35 is slowed or even stopped by the friction force of the first brake block 32 and the second brake block 34 against the side of the wheel 35. In this embodiment, the wheel brake structure 3 is pulled by the brake cable 2, and the brake structure 3 may be replaced by another conventional wheel brake structure, which is not a limitation of the wheel brake structure.
Fig. 4A to fig. 7 are schematic diagrams of a first operation, a second operation, and a second to fourth operation of the brake structure according to the present invention. As shown in the drawing, in the present embodiment, the user steps on the pedal 133 of the foot brake assembly 13 downward, the pedal 133 drives the lever 131, the lever 131 pivots relative to the body 111, the body elastic member 113 is connected to the first body connecting portion 112 of the body 111 and the lever connecting portion 132 of the lever 131, and the pulling direction (as indicated by the arrow in fig. 4B) of the body elastic member 113 is opposite to the moving direction of the lever 131 driven by stepping on the pedal 133, so that the lever 131 is affected by the pulling force of the body elastic member 113. Furthermore, the first connection portion 154 of the first brake member 151 of the lever 131 drives the first elastic member 153 to pull the brake cable 2, and the brake cable 2 brakes the wheel brake structure 3.
Furthermore, the lever 131 drives the first fixing portion 152 of the first brake member 151 to abut against the second fixing portion 172 of the second brake member 171, that is, one end of the second elastic member 173 generates a downward force (as indicated by the arrow direction in fig. 4A) on the second brake member 171 with the second body connecting portion 114 of the body as a pivot point, and the second brake member 171 is pivoted to the center of the through shaft 110 of the body 111 as a pivot point, and the direction of the force is biased to the right side of the through shaft 110, so that the direction of deflection of the second brake member 171 is clockwise. And, the second brake member 171 is pushed to the right by the force in this direction, and the through shaft 110 abuts against the left inner wall in the through hole 170.
Referring back to fig. 5, in the present embodiment, the first fixing portion 152 is a plurality of ratchet teeth, and the second fixing portion 172 is a pawl. The pawls of the second fixing portion 172 are fixed to the plurality of ratchet teeth of the first fixing portion 152. When the pawl of the second fixing portion 172 is fastened to the first of the plurality of ratchet teeth of the first fixing portion 152, the lever 131 and the body 111 are not pulled by the body elastic member 113 any more to return to the original state (fig. 4A). Subsequently, the pedal 133 drives the first brake member 151 to move relative to the second brake member 171, so that the pawl of the second fixing portion 172 of the second brake member 171 can be clamped in a step-by-step manner between the subsequent ratchet teeth, and the clamping position of the second brake member 171 relative to the first brake member 151 is located in the position between the rearward ratchet teeth, that is, the more the fixing position of the second fixing portion 172 of the second brake member 171 fixed to the first fixing portion 152 of the first brake member 151 is located, the greater the braking force of the first brake member 151 of the lever member 131 driving the first elastic member 153 to pull the brake cable 2.
Referring back to fig. 6, after the pedal 133 is stepped to the maximum, the second brake member 171 abuts against the first connecting portion 154 of the first brake member 151, so that the rod 131 cannot move relative to the body 111 (i.e. the pedal 133 is stepped to the maximum), which changes one end of the second elastic member 173 to generate a downward force (as shown by the arrow direction in fig. 6) on the second brake member 171 with the second body connecting portion 114 of the body 111 as the fulcrum, and the second brake member 171 is pivotally connected to the center of the pivot of the spindle 110 of the body 111, and the direction of the force is biased to the left side of the spindle 110, such that the direction of the deflection of the second brake member 171 is counter-clockwise. And, the second brake member 171 is pushed to the left by the force in this direction, and the through shaft 110 abuts against the right inner wall in the through hole 170. When the second brake 171 deflects counterclockwise, the second fixing portion 172 of the second brake 171 no longer abuts the first fixing portion 152 of the first brake 151. In addition, when the body 111 and the lever 131 are subject to the tensile force of the body elastic member 113 (as indicated by the arrow in fig. 4B), the lever 131 pivots relative to the body 111 (i.e., opposite to the tread direction of the pedal 133).
Referring back to fig. 7, during the process of pivoting the lever 131 relative to the body, the brake limiting portion 174 of the second brake member 171 abuts against the lever limiting portion 134, and the acting force pushes the second brake member 171 to be abutted back along the lever limiting portion 134 (i.e. generate clockwise deflection), so as to change the acting force direction of the second elastic member 173, so that the original acting force direction is biased to the left side of the through shaft 110 and is biased to the right side of the through shaft 110 (i.e. change from fig. 7 to fig. 4A), and the state of the brake structure 1 is restored to the original state without stepping on the pedal 133.
In summary, the present invention provides a braking structure, which gradually enhances braking force through a first braking component and a second braking component, so that a wheel brakes in a gradually stopping manner. The above-mentioned mode can reduce the influence of inertial force produced under the condition of braking on the device or equipment itself. Furthermore, the brake structure provides a way of stepping on the pedal to brake and also releases the brake state by stepping on the pedal, so that the use mode is more convenient.
While the foregoing description illustrates and describes several preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (6)

1. A foot brake structure, characterized in that it comprises:
the main body assembly is provided with a body and a body elastic piece, wherein the body is provided with a first body connecting part and a second body connecting part, one side of the body protrudes out of the first body connecting part, the other side of the body protrudes out of the second body connecting part, and one end of the body elastic piece is connected with the body connecting part;
the foot brake assembly is provided with a rod piece and a pedal, the rod piece is pivoted to the body, the pedal is arranged at one end of the rod piece, the other end of the rod piece extends out of the rod piece connecting part and the rod piece limiting part towards two sides respectively, and the other end of the body elastic piece is connected with the rod piece connecting part;
the first brake assembly is provided with a first brake piece and a first elastic piece, the first brake piece is arranged at the other end of the rod piece, the first brake piece is provided with a first fixing part and a first connecting part, the first fixing part is positioned at one side of the first brake piece, the first connecting part is positioned at the other side of the first brake piece, one end of the first elastic piece is connected with the first connecting part, and the other end of the first elastic piece is connected with a brake cable; and
the second brake assembly is provided with a second brake piece and a second elastic piece, the second brake piece is pivoted to the body, the second brake piece is provided with a second fixing part, a brake limiting part and a second connecting part, the second fixing part is positioned at one side of the second brake piece and is abutted to the first fixing part, the brake limiting part is positioned at the other side of the second fixing part, the brake limiting part is opposite to the rod limiting part, the second connecting part is positioned at one side of the pivot position of the second brake piece, one end of the second elastic piece is connected to the second connecting part, and the other end of the second elastic piece is connected to the second body connecting part;
the first fixing part is a ratchet part, and the second fixing part is a pawl part;
the second brake piece is further provided with a perforation, the body is provided with a penetrating shaft relative to the perforation, the penetrating shaft of the body penetrates through the perforation of the second brake piece, the outer diameter length of the penetrating shaft is smaller than the length of the long side of the perforation, and the outer diameter length of the penetrating shaft is equal to the length of the short side of the perforation.
2. The foot brake structure of claim 1, wherein the body resilient member and the first resilient member are extension springs.
3. The foot brake structure of claim 1, wherein the second resilient member is a torsion spring.
4. The foot brake structure of claim 1, wherein the other end of the second elastic member is pivoted to the second body connecting portion of the body, and one end of the second elastic member is connected to the second connecting portion and applies a force to the second brake member.
5. The foot brake structure of claim 1, wherein the more rearward the second securing portion of the second brake member is secured to the first securing portion of the first brake member, the greater the braking force will be.
6. The foot brake structure of claim 1, further comprising a wheel brake structure comprising a first brake arm and a second brake arm, wherein the first brake arm is pivotally connected to the second brake arm, one end of the first brake arm has a first brake block, one end of the second brake arm has a second brake block, the first brake block is opposite to the second brake block, the first brake block is located on one side of the wheel, the second brake block is located on the other side of the wheel, and the brake cable is inserted through the other end of the first brake arm and fixed to the other end of the second brake arm.
CN201711383363.8A 2017-12-20 2017-12-20 Foot brake structure Active CN109941242B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711383363.8A CN109941242B (en) 2017-12-20 2017-12-20 Foot brake structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711383363.8A CN109941242B (en) 2017-12-20 2017-12-20 Foot brake structure

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CN109941242A CN109941242A (en) 2019-06-28
CN109941242B true CN109941242B (en) 2024-02-06

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441380A (en) * 1981-11-11 1984-04-10 Toyota Jidosha Kabushiki Kaisha Foot-operated control device for parking brake
US4597307A (en) * 1981-12-16 1986-07-01 Toyota Jidosha Kabushiki Kaisha Foot-operated control device for parking brake
JPH10230827A (en) * 1997-02-21 1998-09-02 Toyota Motor Corp Pedal device for vehicle
JP3015349B1 (en) * 1998-09-04 2000-03-06 ヒルタ工業株式会社 Foot-operated parking brake pedal
US6508341B1 (en) * 1999-06-28 2003-01-21 Kuroishi Iron Works Co., Ltd. Parking brake device for vehicle
CN201494424U (en) * 2009-08-29 2010-06-02 浙江吉利汽车研究院有限公司 Pedal-type parking control mechanism
JP2016064744A (en) * 2014-09-25 2016-04-28 株式会社アドヴィックス Stepping type parking brake device for vehicle
CN207842912U (en) * 2017-12-20 2018-09-11 惠州海卓科赛医疗有限公司 Service brake structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4844063B2 (en) * 2004-10-13 2011-12-21 株式会社アドヴィックス Foot-operated parking brake device for vehicles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441380A (en) * 1981-11-11 1984-04-10 Toyota Jidosha Kabushiki Kaisha Foot-operated control device for parking brake
US4597307A (en) * 1981-12-16 1986-07-01 Toyota Jidosha Kabushiki Kaisha Foot-operated control device for parking brake
JPH10230827A (en) * 1997-02-21 1998-09-02 Toyota Motor Corp Pedal device for vehicle
JP3015349B1 (en) * 1998-09-04 2000-03-06 ヒルタ工業株式会社 Foot-operated parking brake pedal
US6508341B1 (en) * 1999-06-28 2003-01-21 Kuroishi Iron Works Co., Ltd. Parking brake device for vehicle
CN201494424U (en) * 2009-08-29 2010-06-02 浙江吉利汽车研究院有限公司 Pedal-type parking control mechanism
JP2016064744A (en) * 2014-09-25 2016-04-28 株式会社アドヴィックス Stepping type parking brake device for vehicle
CN207842912U (en) * 2017-12-20 2018-09-11 惠州海卓科赛医疗有限公司 Service brake structure

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