WO2017028035A1 - 中央控制刹车系统及可移动医疗设备 - Google Patents

中央控制刹车系统及可移动医疗设备 Download PDF

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Publication number
WO2017028035A1
WO2017028035A1 PCT/CN2015/087047 CN2015087047W WO2017028035A1 WO 2017028035 A1 WO2017028035 A1 WO 2017028035A1 CN 2015087047 W CN2015087047 W CN 2015087047W WO 2017028035 A1 WO2017028035 A1 WO 2017028035A1
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WO
WIPO (PCT)
Prior art keywords
ratchet
brake system
assembly
brake
pedal member
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Application number
PCT/CN2015/087047
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English (en)
French (fr)
Inventor
赵彦群
陈志武
易巍
Original Assignee
深圳迈瑞生物医疗电子股份有限公司
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Application filed by 深圳迈瑞生物医疗电子股份有限公司 filed Critical 深圳迈瑞生物医疗电子股份有限公司
Priority to CN201580071110.XA priority Critical patent/CN107107936B/zh
Priority to PCT/CN2015/087047 priority patent/WO2017028035A1/zh
Publication of WO2017028035A1 publication Critical patent/WO2017028035A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement

Definitions

  • the present invention relates to the field of medical devices, and in particular to a central control brake system and a movable medical device.
  • the centrally controlled brake system is a brake control system commonly used in mobile medical devices. It uses a control mechanism to simultaneously control the braking and braking action of two or more casters. Compared with the traditional way of controlling the brakes and braking each individual caster, the central brake is more convenient and quicker to operate. Although the central brake is superior to the traditional single control brake, the existing central brake also has some shortcomings.
  • the existing central brake control system mainly has two-pedal type and single-pedal type.
  • the two-pedal type has two common structures. One is to control the brakes and brakes of the casters by different pedals. This structure is generally linked ( The action is similar to the seesaw, one pedal is stepped down and the other pedal is lifted. This structure will confuse the operator and is inconvenient to use.
  • Another type of double-pedal structure is a deformed structure of the double pedal. The pedal shaft is controlled to rotate back and forth by means of a seesaw.
  • the existing single-pedal central control brake system has a single-foot-type central control brake system that controls the brakes and brakes of the central brake separately by different actions of the pedals and hooks.
  • This structure has an obvious disadvantage is that the hooks are The operation is very difficult, and if the operator's instep is not protected, it may cause pain or even scratch on the operator's instep. In addition, during the operation of the structure, the operator needs to distinguish whether the next step is to take a step or a hook. action.
  • the embodiment of the invention provides a central control brake system and a movable medical device, which can realize the function of stepping on the pedal member caster brake and then stepping on the pedal member caster to cancel the brake.
  • the pedaling action is simple, labor-saving and not confusing, and the man-machine The interaction is good, and the central control brake system has a smooth switching action and low noise.
  • the present invention provides a centrally controlled brake system including a base frame, at least one caster mounted on the bottom of the base frame, a drive spindle, a brake assembly, and a transmission assembly for controlling the a rotation of a drive shaft coupled between the drive spindle and the caster, the brake assembly comprising:
  • a pedal member fixed to the transmission main shaft for receiving the pedaling force and driving the transmission spindle to rotate;
  • a brake link one end of which is movably coupled to the pedal member
  • a ratchet assembly comprising a ratchet block fixed to the base frame and a ratchet pawl coupled to the other end of the brake link, the ratchet block comprising a closed annular track groove, the first stop position being disposed in the track groove And a second stop position;
  • the pedal member drives the ratchet pawl to circulate between the first dwell position and the second dwell position in a single direction in the track groove under the action of the pedaling force and the elastic force.
  • the track groove comprises a first position, a first rising surface, a second position, a third position, a fourth position, a fifth position, a second rising surface and a sixth position which are sequentially connected in the single direction
  • the first position and the second position are smoothly connected by the first rising surface
  • the second position and the third position form a step one, the third position and the fourth Forming a step 2 between the positions, forming a step three between the fourth position and the fifth position, and smoothly connecting the fifth position and the sixth position through the second rising surface
  • the fourth position and the first a spacing between the locations is less than a spacing between the third location and the first location and less than a spacing between the fifth location and the first location
  • the first retention bit being at the In one position
  • the second dwell position is in the fourth position.
  • the elastic member includes a first elastic portion and a second elastic portion disposed opposite to the first elastic portion, the first elastic portion abuts on the base frame, and the pedal member includes a receiving portion a first surface of the pedaling force and a second surface disposed opposite to the first surface, the second elastic portion abutting on the pedal member On both sides.
  • the first rising surface and/or the second rising surface is a smooth curved surface.
  • the track slot further includes a third dwell position, the third dwell position is disposed between the first dwell position and the second dwell position, the pedal member is in the treading force and the The ratchet pawl is driven to move cyclically between the first dwell position, the third dwell position and the second dwell position in a single direction in the track groove.
  • a cushion is disposed at the first position.
  • the first position is provided with a receiving space
  • the cushion is placed in the receiving space, and an upper surface of the cushion is higher than a plane of the first position.
  • the third position, the fourth position and the fifth position are also respectively provided with a cushion, the cushion at the first position, the cushion at the third position, and the fourth position
  • the cushion pad is integrally provided with the cushion at the fifth position.
  • the first position, the third position, the fourth position and the fifth position of the ratchet block are respectively provided with a through hole, the cushion at the first position, and the third position
  • the cushion pad, the cushion pad at the fourth position, and the cushion pad at the fifth position each include a buffer portion and a fixing portion, and all of the buffer portions respectively pass through the through holes at the corresponding positions and protrude from the track groove
  • all of the fixing portions are connected in a unitary fixed structure, and the ratchet assembly further includes a fixing member fixed between the fixing member and the ratchet block.
  • the transmission assembly includes a first transmission link and a second transmission link, the caster including a first set of casters disposed at one end of the drive spindle and a second set of casters disposed at the other end of the drive spindle
  • the first transmission link is connected between the first set of casters and one end of the drive spindle
  • the second drive rod is connected between the second set of casters and the other end of the drive spindle.
  • the second brake assembly for controlling the second transmission a rotation of the main shaft, the second transmission assembly is coupled between the second transmission main shaft and the second caster, the second brake assembly comprising:
  • a second pedal member fixed to the second transmission main shaft for receiving the second pedaling force and driving the second transmission spindle to rotate;
  • a second elastic member elastically coupled between the second pedal member and the base frame, the second elastic member applying a second elastic force opposite to the second stepping force to the second pedal member ;
  • a second ratchet assembly including a second ratchet block secured to the base frame and a second ratchet pawl coupled to the other end of the second brake link, the second ratchet block including a second track of closed loops a slot, wherein the second track slot is provided with a first stop position and a second stop position;
  • the second pedal member drives the second ratchet pawl in the second track slot in the first stop position and in the second track slot under the action of the second pedaling force and the second elastic force
  • the circular motion between the second stop positions is described.
  • the invention provides a mobile medical device comprising the centrally controlled brake system of any of the above.
  • the present invention has the following beneficial effects:
  • the central control brake system and the movable medical device provided by the invention can realize the function of stepping on the pedal wheel brakes and then stepping on the pedal member casters to solve the brake function.
  • the pedaling action is simple, labor-saving and not confusing, and the human-computer interaction is good.
  • the central control brake system has a smooth switching action and low noise.
  • the structure of the casters, brake components and transmission components and the mutual cooperation between them enable the central control brake system to step on the pedal brakes of the pedal members, and then step on the pedal members to cancel the brake function.
  • the pedaling action is simple and easy to implement. It will not be confused and human-computer interaction is good.
  • the elastic member in the brake assembly is provided with a buffering force and an unlocking force for the central control brake system, so that the central control brake system has stable switching action, no sudden change, and low noise.
  • the arrangement of the track groove structure of the ratchet block in the brake assembly enables the central control brake system to have a stable braking state and a braking state, thereby ensuring the reliability of the driving state control of the movable medical device using the central control brake system.
  • FIG. 1 is a schematic perspective structural view of a central control brake system according to Embodiment 1 of the present invention.
  • FIG. 2 is a first state diagram of a brake component of a central control brake system according to a first embodiment of the present invention
  • FIG. 3 is a second state diagram of a brake component of a central control brake system according to a first embodiment of the present invention
  • FIG. 4 is a three-dimensional structure of a ratchet block of a central control brake system according to a first embodiment of the present invention
  • FIG. 5 is a perspective structural view showing another angle of a ratchet block of a central control brake system according to Embodiment 1 of the present invention.
  • FIG. 6 is a top plan view of a ratchet block of a central control brake system according to a first embodiment of the present invention
  • Figure 7 is a cross-sectional view taken along line A-A of the ratchet block of Figure 5;
  • FIG. 8 is a top view of a ratchet block of a central control brake system according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic perspective structural view of another central control brake system according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic diagram of a three-dimensional structure of a mobile medical device according to Embodiment 3 of the present invention.
  • a first embodiment of the present invention provides a centrally controlled brake system 1 including a base frame 11, a caster 12, a brake assembly 13, a drive spindle 14, and a transmission assembly 15.
  • the base frame 11 is fixedly connected to a movable medical device (not shown) to which the central control brake system 1 is applied.
  • the casters 12 are fixed to the bottom of the base frame 11.
  • the drive spindle 14 is disposed on the base frame 11, and the drive spindle 14 is rotatable relative to the base frame 11 about its own axis, and the transmission assembly 15 is coupled to the drive spindle 14 and the caster 12.
  • the brake assembly 13 includes a pedal member 131, an elastic member 132, a ratchet assembly 133 and a brake link 134.
  • the pedal member 131 is fixed to the drive spindle 14, the pedal member 131 is subjected to the pedaling force, and the elastic member 132 is coupled to the pedal member 131 and the base. Between the frames 11, the elastic member 132 applies an elastic force against the pedaling force to the pedal member 131, and the pedaling force and the elastic force cooperate to rotate the pedal member 131 to drive the transmission spindle 14 to rotate.
  • the ratchet assembly 133 includes a ratchet block 1331 and a ratchet pawl 1332.
  • the ratchet block 1331 has a closed annular track groove.
  • the track groove includes a first dwell position and a second dwell position at which the ratchet pawl 1332 can rest during movement, and the ratchet pawl 1332 is embedded in
  • the movement in the track slot moves in a single direction between the first dwell position and the second dwell position, and the position at which the ratchet pawl 1332 stays is fed back to the pedal member 131 and the drive spindle 14 through the brake link 134, thereby controlling the drive spindle 14
  • the angle of rotation of the drive spindle 14 transmits the rotational motion to the caster 12 via the brake link 134 to control the braking and disarming of the caster 12.
  • FIG. 2 is a first state diagram of the brake assembly of the central control brake system according to the first embodiment, wherein the ratchet pawl 1332 stays at the first stop position of the track slot
  • FIG. 3 is a first embodiment provided in FIG.
  • the central control brake system brake assembly state diagram 2 wherein the ratchet pawl 1332 moves from the first stop position of the track slot and stays at the second stop position of the track slot, and the dotted line portion in FIG. 3 is represented as the ratchet pawl 1332 staying in the track slot first
  • the portion of the solid line in Fig. 3 is shown in a state where the ratchet pawl 1332 stays in the second stay position of the track groove.
  • the stop position of the ratchet pawl is "first stop position - second stop position"
  • the repetition of the first stay position that is, the rotation angle of the pedal member 131 can be controlled by the brake link 134 to achieve the repetition of " ⁇ 1 - ⁇ 2 - ⁇ 1”
  • the pedal member 131 drives the transmission spindle 14 to realize the rotation angle " ⁇ 1 - - ⁇ 2 - ⁇ 1" is repeated, the transmission spindle 14 transmits the rotational motion to the caster 12 through the transmission assembly 15 to drive the caster 12 to achieve the "state one - state two - state one" repetition.
  • the first stop position is set as the brake stop position
  • the second stop position is the brake stay position
  • the caster state is the brake release state
  • the caster state is the brake state
  • the central control brake system of this embodiment 1 can realize the following movement process: stepping on the pedal member 131, the ratchet pawl 1332 stays at the second stay position, the pedal member 13 rotates counterclockwise ⁇ angle is at the ⁇ 2 position, the drive spindle 14 rotates counterclockwise, and the caster 12 is in the state 2, that is, Braking state; stepping on the pedal member 131 again, the ratchet pawl 1332 stays at the first rest position, the pedal member 13 rotates clockwise ⁇ angle is at the ⁇ 1 position, the transmission spindle 14 rotates clockwise, and the caster 12 is in the state one, that is, the brake state Stepping on the pedal member 131 again, the ratchet pawl 1332 stays in the second stay position, the pedal member 13 rotates counterclockwise ⁇
  • the central control brake system 1 of the present embodiment can realize the function of stepping on the pedal member caster brake and then stepping on the pedal member caster to release the brake.
  • the pedaling action is simple, easy to implement and not confusing, and the human-computer interaction is good.
  • FIG. 4 is a perspective structural view of a ratchet block 1331
  • FIG. 5 is a perspective view of another angle of the ratchet block 1331
  • FIG. 6 is a top view of the ratchet block 1331
  • FIG. 6 only schematically represents a trajectory. The general structure of the groove does not show other structures in the ratchet block 1331.
  • FIG. 7 is an AA cross-sectional view of the ratchet block 1331 of FIG. 6, and FIG. 8 is a top view of the ratchet block 1331.
  • the track groove includes a first position I sequentially connected in a single direction, a first rising surface a rising along a moving direction of the ratchet claw 1332, a second position II, a third position III, a fourth position IV, a fifth position V, and a
  • the second rising surface b and the sixth position VI rising in a single direction are described.
  • the first position I and the second position II are smoothly connected by the first rising surface a.
  • the second position II and the third position III form a step one
  • the third position III and the fourth position IV form a step two
  • the fourth position IV and the fifth position V form a step three
  • the fifth position V and the sixth position VI pass the first
  • the second rising surface b is smoothly connected
  • the sixth position VI forms a step four with the first position I.
  • the first step, the second step, the third step, and the fourth step fall in the single direction (directions indicated by arrows in FIGS. 4 and 6).
  • the spacing S between the fourth position IV and the first position I is smaller than the spacing S1 between the third position III and the first position I and smaller than the spacing between the fifth position V and the first position I.
  • S2 in other words, from the third position III to the fourth position IV to the fifth position V, substantially forms a "V" shaped trajectory (as indicated by a broken line in Fig. 8).
  • the spacing S between the fourth position IV and the first position I refers to the linear distance between the fourth position IV and the first position I; the spacing S1 between the third position III and the first position I refers to The linear distance between the third position III and the first position I; the distance S2 between the fifth position V and the first position I refers to the linear distance between the fifth position V and the first position I, as shown in FIG.
  • the starting point of the linear distance substantially falls at the center of the first position I, the third position III, the fourth position IV, and the fifth position V.
  • a gap G is formed between the track groove and one edge of the ratchet block 1331.
  • the notch G is disposed between the first rising surface a and the edge of the ratchet block 1331, and the ratchet is provided.
  • the ratchet claw 1332 slides into the track groove through the notch G, and a step structure is arranged between the notch G and the track groove. After the ratchet claw 1332 enters the track groove, the step structure functions as a limit for the limit function. The ratchet pawl 1332 is prevented from moving out of the track groove.
  • the first staying position is in the first position I
  • the second staying position is in In the fourth position IV
  • the first stop position is the ratchet
  • the elastic force of the elastic member 132 causes the ratchet pawl 1332 to abut against the track groove wall and stably stays at the first position I
  • the pedal member 131 is at the ⁇ 1 position
  • the central control brake system 1 is in the brake-relating state.
  • the mobile medical device is free to move; during the movement of the ratchet pawl 1332 from the first dwell position to the second dwell position, the pedal member 131 is stepped on, and the pedaling force overcomes the elastic force, so that the ratchet pawl 1332 is first smoothly connected from the first position I.
  • the first rising surface a rises to the second position II, and then falls through the step to the third position III.
  • the step 1 prevents the ratchet pawl 1332 from moving backward, and the pedal member 131 is no longer depressed, because the third position III and the third
  • the spacing between a position I is greater than the spacing between the fourth position IV and the first position I, and the elastic force of the elastic member 132 causes the ratchet pawl 1332 to fall from the third position III through the step two to the fourth position IV, the step two resistance
  • the ratchet pawl 1332 is moved in the reverse direction, and since the distance between the fifth position V and the first position I is greater than the distance between the third position III and the first position I, the ratchet pawl 1332 does not fall further to the fifth position V.
  • the ratchet pawl 1332 is stably staying at the fourth position IV, so that the pedal member 131 rotates by ⁇ angle to stay at the ⁇ 2 position, and the transmission spindle 14 also rotates ⁇ angle counterclockwise to stay at the ⁇ 2 position, and the central control brake system 1 is in the brake state, and the movable medical treatment
  • the device is not movable; during the movement of the ratchet pawl 1332 from the second dwell position to the first dwell position, the pedal member 131 is stepped on again, and the pedaling force overcomes the elastic force to cause the ratchet pawl 1332 to fall from the fourth position IV through the step three to the fifth Position V, step three prevents the ratchet pawl 1332 from moving backwards.
  • the ratchet pawl 1332 is first smoothed by the fifth position V.
  • the connected second rising surface b rises to the sixth position VI, and then falls through the step four to the first position I.
  • the step four prevents the ratchet claw 1332 from moving backward, and the ratchet claw 1332 stably stays at So that a position of the pedal depression angle ⁇ rotated clockwise member 131 stays in the position ⁇ 1, the drive shaft 14 to similarly rotate in a clockwise angle ⁇ ⁇ 1 stays in position, the central control system 1 is in the brake brake state solution, the movable medical device may move freely.
  • the design of the track block structure of the ratchet block 1331 enables the ratchet pawl 1332 to realize the intermittent movement of the one-way cycle, while the first position I and the fourth position IV of the stable stop can make the central control brake system 1 have a stable braking state and The brake state is solved to ensure the reliability of the driving state control of the mobile medical device.
  • the elastic member 132 includes a first elastic portion 1321 and a second elastic portion 1322 disposed opposite to the first elastic portion 1321, and the pedal member 131 includes a first surface 1311 that receives the pedaling force. And the second surface 1312 disposed opposite to the first surface 1311, the first elastic portion 1321 abuts on the base frame 11, and the second elastic portion 1322 abuts against the second surface 1312, and the elastic member 132 provides elasticity opposite to the pedaling force. force.
  • the elastic member 132 may be a non-metallic elastomer such as a spring of a torsion spring, a metal tension spring, a metal pressure spring, a gas spring or the like, or may be used in combination.
  • the elastic member 132 when the elastic member 132 is a torsion spring, the elastic member 132 further includes an elastic middle portion, and the elastic middle portion is sleeved outside the transmission main shaft 14.
  • the elastic middle portion 132 is elastically fixed in the middle portion and is coaxial with the rotation axis of the pedal member 131. In position, the pedal member 131 can be provided with a more stable elastic force.
  • the first rising surface a and/or the second rising surface b of the track groove in the ratchet block 1331 are arranged in a smooth curved surface, so that the movement process of the ratchet claw 1332 is more stable. .
  • a cushion pad 135 is disposed on the first position I of the track groove in the ratchet block 1331, so that the ratchet pawl 1332 is buffered when the step 4 is dropped to the first position I, and the cushion pad 135 functions to reduce vibration and noise.
  • An accommodation space is disposed at the first position I, the cushion pad 135 is disposed in the accommodation space, and an upper surface of the cushion pad 135 is higher than a plane of the first position I. The arrangement of the accommodation space allows the cushion pad 135 to be positioned accurately without causing movement or drop problems.
  • the third position III, the fourth position IV, and the fifth position V are also provided with a cushion 135 to achieve shock absorption and noise reduction.
  • the through hole is disposed at the first position I, the third position III, the fourth position IV, and the fifth position V of the ratchet block 1331.
  • the through hole allows the back surface of the ratchet block 1331 to communicate with the track groove. It can be understood that the track groove is opened on the front surface of the ratchet block 1331.
  • Each of the cushion pads 135 includes a buffer portion and a fixing portion, and all of the buffer portions respectively pass through the through holes at the corresponding positions and protrude from the surface at the corresponding position of the track groove, and all of the fixing portions are
  • the connection is a one-piece fixed structure.
  • the ratchet assembly 133 also includes a fixture 136 that is sandwiched between the back of the ratchet block 1331 and the fixture 136.
  • the buffer pad 135 provided integrally has a simple installation process, and the buffer portion of the cushion pad 135 is placed in the through hole of the ratchet block 1331 to be positioned accurately without causing movement or falling.
  • the three control positions of the central control brake system 1 can be switched by changing the track groove structure of the ratchet block 1331.
  • the track groove further includes a third stay position that the ratchet pawl 1332 can stay during the movement, and the third stay position.
  • the design of the third stop position The design of the first stop position and the second stop position are similar and will not be described in detail. It can be understood that the setting of the three pause position sequences can also be designed according to the specific needs of the mobile medical device.
  • the transmission main shaft 14 includes one end and the other end opposite to one end
  • the transmission assembly 15 includes a first transmission link connecting one end of the transmission main shaft 14 and a second transmission link connecting the other end of the transmission main shaft 14,
  • the caster. 12 includes a first set of casters disposed at one end of the drive spindle 14 and a second set of casters disposed at the other end of the drive spindle 14, the first drive link connection controlling the first set of casters and the second drive link connection controlling the second set of casters. It can be understood that the symmetric arrangement of the transmission assembly 15 and the casters 12 in the present embodiment simplifies the operation of the movable medical device by the user, and is more convenient and quick.
  • the second embodiment of the present invention provides another central control brake system 1.
  • the difference between this embodiment and the first embodiment is that the second brake component 13', the second drive spindle 14', and the second The transmission assembly 15' and the at least one second caster 12', the second brake assembly 13' and the brake assembly 13 are identical in structure and principle.
  • the second transmission spindle 14' is identical in structure and principle to the transmission spindle 14, and the second transmission
  • the assembly 15' is identical in structure and principle to the transmission assembly 15, the second caster 12' is identical to the caster 12, the brake assembly 13 controls the three casters 12 via the drive spindle 14 and the transmission assembly 15, and the second brake assembly 13' passes The second drive spindle 14' and the second drive assembly 15' control a second caster 12'.
  • the specific structure of the second brake component 13 ′ is: the second brake component includes a second pedal component, a second elastic component, a second brake link, and a second ratchet component.
  • the second pedal member is fixed to the second transmission main shaft for receiving the second pedaling force and driving the second transmission spindle to rotate.
  • the second elastic member is elastically coupled between the second pedal member and the base frame, and the second elastic member applies a second elastic force opposite to the second pedaling force to the second pedal member.
  • One end of the second brake link is movably coupled to the second pedal member.
  • the second ratchet assembly includes a second ratchet block secured to the base frame and a second ratchet pawl coupled to the other end of the second brake link, the second ratchet block including a second track slot enclosing the ring
  • the second track slot is provided with a first stop position and a second stop position.
  • the second pedal member drives the second ratchet pawl in the second track slot in the first stop position and in the second track slot under the action of the second pedaling force and the second elastic force The circular motion between the second stop positions is described.
  • the first stop position of the second brake assembly 13' and the first stop position in the brake assembly 13 are positions where the ratchet pawl is stopped in the track groove, and the literal expression is different, but the two meanings are the same.
  • the second stop and the second stop also express the same meaning.
  • independent control of the caster 12 and the second caster 12' in the centrally controlled brake system 1 may enable a medical instrument to which the centrally controlled brake system 1 is applied to achieve a wider variety of motion modes. Understand The number of casters 12 and second casters 12' can be flexibly set according to requirements.
  • the caster 12 is a brake caster
  • the second caster 12' is a straight brake caster
  • the caster 12 is a straight brake caster
  • the second caster 12' is a brake caster. Understandably, the position and number of brake casters and straight brake casters can be flexibly set according to specific needs.
  • a third embodiment of the present invention provides another mobile medical device, including a central control brake system 1, a control panel 2, a display 3, a support wall 4, and a host 5.
  • the central control brake system 1 adopts the above-mentioned first embodiment. Or the central control brake system 1 in the second embodiment.
  • the movable medical device can realize the function of stepping on the pedal caster brake, and then stepping on the pedal member caster to release the brake.
  • the pedaling action is simple, labor-saving and not confusing, and the human-computer interaction is good, and the central control
  • the brake system has a smooth switching action and low noise.

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Abstract

一种中央控制刹车系统（1）和具有该系统的可移动医疗设备。所述中央控制刹车系统（1）包括基架（11）、安装在所述基架（11）底部的至少一个脚轮（12）、传动主轴（14）、制动组件（13）以及传动组件（15），所述制动组件（13）用于控制所述传动主轴（14）的转动，所述传动组件（15）连接于所述传动主轴（14）和所述脚轮（12）之间，所述制动组件（13）包括：踏板件（131）、弹性件（132）、制动连杆（134）及棘轮组件（133），所述棘轮组件（133）包括固定在所述基架（11）上的棘轮块（1331）和连接于所述制动连杆（134）另一端的棘轮爪（1332），所述棘轮块（1331）包括封闭环形的轨迹槽，所述轨迹槽内设第一停留位和第二停留位；所述踏板件（131）带动所述棘轮爪（1332）在所述轨迹槽内沿单一方向在所述第一停留位和所述第二停留位之间循环运动。所述中央控制刹车系统（1）能实现踩一下踏板件（131）脚轮（12）刹车，再踩一下踏板件（131）脚轮（12）解刹车的功能，踩踏动作简单、省力。

Description

中央控制刹车系统及可移动医疗设备 技术领域
本发明涉及医疗设备领域，特别涉及一种中央控制刹车系统及可移动医疗设备。
背景技术
医护人员在使用带移动功能的医疗设备时(如推车式超声设备，推车式麻醉机，移动式病床等)，往往基于操作、诊断与治疗的需求，需要医疗设备能够停稳(轮子锁住)在需要的位置。
中央控制刹车系统是可移动式医疗设备上常用的一种刹车控制系统，它采用一个控制机构同时控制两个或多个脚轮的刹车和解刹车动作。相比传统的每个脚轮单独控制刹车和解刹车的方式，中央刹车操作起来更方便快捷。中央刹车虽然优于传统的单独控制刹车，但是现有的中央刹车也存在一些缺点。
现有的中央刹车控制系统主要有双踏板式和单踏板式，双踏板式常见的有两种结构，一种是通过不同的踏板分别控制脚轮的刹车和解刹车，这种结构一般是联动的(动作类似于跷跷板，一个踏板踩下去，另外一个踏板被抬起)，这种结构会给操作者带来混淆，使用不便。另外一种双踏板式结构是双踏板的一种变形结构，采用跷跷板的方式控制踏板轴来回转动，踩踏板不同端部可以实现踏板轴不同方向的转动(一般是外置在设备的边缘，如医院病床上使用的跷跷板式刹车结构)，这种结构表面上看只有一个踏板，但是从本质上仍属于双踏板，这种结构一般是外置在设备的边缘，要是在中间就必须占用很大的空间，另外由于刹车和解刹车背对背，操作比较不方便。现有单踏板式中央控制刹车系统常见的一种单脚踏式中央控制刹车系统是通过踩和钩的不同动作分别控制中央刹车的刹车和解刹车动作，这种结构有一个明显的缺点就是钩的动作操作起来很吃力，而且如果操作者脚背未保护好，还有可能造成操作者脚背疼痛甚至刮伤，另外，这种结构操作过程中操作者需要辨别接下来是要采取踩的动作还是钩的动作。
发明内容
本发明实施例提供了一种中央控制刹车系统及可移动医疗设备，可以实现踩一下踏板件脚轮刹车，再踩一下踏板件脚轮解刹车的功能，踩踏动作简单、省力且不会混淆，人机交互性好，中央控制刹车系统切换动作平稳、噪声小。
一方面，本发明提供了一种中央控制刹车系统，包括基架、安装在所述基架底部的至少一个脚轮、传动主轴、制动组件以及传动组件，所述制动组件用于控制所述传动主轴的转动，所述传动组件连接于所述传动主轴和所述脚轮之间，所述制动组件包括：
踏板件，固定于所述传动主轴，用于承受踩踏力，并带动所述传动主轴转动；
弹性件，弹性连接于所述踏板件和所述基架之间，所述弹性件对所述踏板件施加与所述踩踏力反向的弹性力；
制动连杆，一端活动连接于所述踏板件；及
棘轮组件，包括固定在所述基架上的棘轮块和连接于所述制动连杆另一端的棘轮爪，所述棘轮块包括封闭环形的轨迹槽，所述轨迹槽内设第一停留位和第二停留位；
所述踏板件在所述踩踏力及所述弹性力的作用下带动所述棘轮爪在所述轨迹槽内沿单一方向在所述第一停留位和所述第二停留位之间循环运动。
优选的，所述轨迹槽包括沿所述单一方向依次连接的第一位置、第一上升面、第二位置、第三位置、第四位置、第五位置、第二上升面和第六位置，所述第一位置和所述第二位置之间通过所述第一上升面光滑连接，所述第二位置与所述第三位置之间形成台阶一、所述第三位置与所述第四位置之间形成台阶二、所述第四位置与所述第五位置之间形成台阶三，所述第五位置与所述第六位置之间通过所述第二上升面光滑连接，所述第六位置与所述第一位置之间形成台阶四，所述台阶一、所述台阶二、所述台阶三及所述台阶四均沿所述单一方向下落，所述第四位置与所述第一位置之间的间距小于所述第三位置与所述第一位置之间的间距且小于所述第五位置与所述第一位置之间的间距，所述第一停留位处于所述第一位置，所述第二停留位处于所述第四位置。
优选的，所述弹性件包括第一弹性部和与第一弹性部相对设置的第二弹性部，所述第一弹性部抵接在所述基架上，所述踏板件包括用于承受所述踩踏力的第一面和与第一面相对设置的第二面，所述第二弹性部抵接在所述踏板件第 二面上。
优选的，所述第一上升面和/或所述第二上升面为平滑的弧形表面。
优选的，所述轨迹槽还包括第三停留位，所述第三停留位设置在所述第一停留位与所述第二停留位之间，所述踏板件在所述踩踏力及所述弹性力的作用下带动所述棘轮爪在所述轨迹槽内沿单一方向在所述第一停留位、所述第三停留位和所述第二停留位之间循环运动。
优选的，所述第一位置处设置有缓冲垫。
优选的，所述第一位置处设置有容纳空间，所述缓冲垫置于所述容纳空间内，且所述缓冲垫的上表面高于所述第一位置所在平面。
优选的，所述第三位置、所述第四位置和所述第五位置处亦分别设置有缓冲垫，所述第一位置处的缓冲垫、第三位置处的缓冲垫、第四位置处的缓冲垫和第五位置处的缓冲垫一体设置。
优选的，所述棘轮块之所述第一位置处、第三位置处、第四位置处和第五位置处均设有通孔，所述第一位置处的缓冲垫、第三位置处的缓冲垫、第四位置处的缓冲垫和第五位置处的缓冲垫均包括缓冲部与固定部，所有的所述缓冲部分别穿过相应位置处的所述通孔且突出于所述轨迹槽相应位置处的表面，所有的所述固定部相连接呈一体式的固定结构，所述棘轮组件还包括固定件，所述固定结构固定于所述固定件和所述棘轮块之间。
优选的，所述传动组件包括第一传动连杆和第二传动连杆，所述脚轮包括布置在所述传动主轴一端的第一组脚轮和布置在所述传动主轴另一端的第二组脚轮，所述第一传动连杆连接于所述第一组脚轮与所述传动主轴一端之间，所述第二传动杆连接于所述第二组脚轮与所述传动主轴另一端之间。
优选的，还包括安装在所述基架底部的至少一个第二脚轮、第二传动主轴、第二制动组件以及第二传动组件，所述第二制动组件用于控制所述第二传动主轴的转动，所述第二传动组件连接于所述第二传动主轴和所述第二脚轮之间，所述第二制动组件包括：
第二踏板件，固定于所述第二传动主轴，用于承受第二踩踏力，并带动所述第二传动主轴转动；
第二弹性件，弹性连接于所述第二踏板件和所述基架之间，所述第二弹性件对所述第二踏板件施加与所述第二踩踏力反向的第二弹性力；
第二制动连杆，一端活动连接于所述第二踏板件；及
第二棘轮组件，包括固定在所述基架上的第二棘轮块和连接于所述第二制动连杆另一端的第二棘轮爪，所述第二棘轮块包括封闭环形的第二轨迹槽，所述第二轨迹槽内设第一停靠位和第二停靠位；
所述第二踏板件在所述第二踩踏力及所述第二弹性力的作用下带动所述第二棘轮爪在所述第二轨迹槽内单方向地在所述第一停靠位和所述第二停靠位之间循环运动。
另一方面，本发明还提供一种可移动医疗设备，包括上述任一项所述的中央控制刹车系统。
相较于现有技术，本发明具有如下有益效果：
本发明提供的中央控制刹车系统及可移动医疗设备，可以实现踩一下踏板件脚轮刹车，再踩一下踏板件脚轮解刹车的功能，踩踏动作简单、省力且不会混淆，人机交互性好，中央控制刹车系统切换动作平稳、噪声小。
其中，脚轮、制动组件和传动组件的结构及它们之间的相互配合使中央控制刹车系统能够实现踩一下踏板件脚轮刹车，再踩一下踏板件脚轮解刹车的功能，踩踏动作简单、容易实现且不会混淆，人机交互性好。制动组件中弹性件的设置为中央控制刹车系统提供了缓冲力和解锁力，使中央控制刹车系统切换动作稳定、不会突变、噪音小。制动组件中棘轮块的轨迹槽结构的设置使中央控制刹车系统具有稳定的刹车状态与解刹车状态，保障了应用该中央控制刹车系统的可移动医疗设备行车状态控制的可靠性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一提供的一种中央控制刹车系统的立体结构示意图；
图2为本发明实施例一提供的一种中央控制刹车系统制动组件状态图一；
图3为本发明实施例一提供的一种中央控制刹车系统制动组件状态图二；
图4为本发明实施例一提供的一种中央控制刹车系统棘轮块的立体结构 图；
图5为本发明实施例一提供的一种中央控制刹车系统棘轮块的另一角度的立体结构图；
图6为本发明实施例一提供的一种中央控制刹车系统棘轮块的俯视图一；
图7为图5中棘轮块的A-A剖面图；
图8为本发明实施例一提供的一种中央控制刹车系统棘轮块的俯视图二；
图9为本发明实施例二提供的另一种中央控制刹车系统的立体结构示意图；
图10为本发明实施例三提供的一种可移动医疗设备立体结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-2，本发明实施例一提供一种中央控制刹车系统1，包括基架11、脚轮12、制动组件13、传动主轴14和传动组件15。其中，基架11与应用该中央控制刹车系统1的可移动医疗设备(图中未画出)固定连接。脚轮12固定在基架11的底部。传动主轴14设置在基架11上，传动主轴14可以绕其自身的轴线相对基架11转动，传动组件15连接传动主轴14与脚轮12。制动组件13包括踏板件131、弹性件132、棘轮组件133和制动连杆134，踏板件131与传动主轴14相固定，踏板件131承受踩踏力，弹性件132连接在踏板件131和基架11之间，弹性件132对踏板件131施加与踩踏力反向的弹性力，踩踏力与弹性力共同作用使踏板件131转动从而带动传动主轴14转动。棘轮组件133包括棘轮块1331和棘轮爪1332，棘轮块1331具有封闭的环形轨迹槽，轨迹槽包括棘轮爪1332在运动过程中可停留的第一停留位和第二停留位，棘轮爪1332嵌于轨迹槽内沿单一方向运动在第一停留位和第二停留位之间循环运动，棘轮爪1332停留的位置通过制动连杆134反馈到踏板件131和传动主轴14上，从而控制传动主轴14的转动角度，传动主轴14通过制动连杆134将转动动作传递给脚轮12以控制脚轮12的刹车与解刹车。
参阅图2-3，图2为实施例一提供的一种中央控制刹车系统制动组件状态图一，其中棘轮爪1332停留在轨迹槽第一停留位，图3为实施例一提供的一种中央控制刹车系统制动组件状态图二，其中棘轮爪1332从轨迹槽第一停留位移动并停留在轨迹槽第二停留位，图3中虚线的部分表示为棘轮爪1332停留在轨迹槽第一停留位的状态，图3中实线的部分表示为棘轮爪1332停留在轨迹槽第二停留位的状态。可以理解的，由于棘轮块1331的轨迹槽为封闭的环形轨迹槽，且棘轮爪在轨迹槽内沿单一方向运动，因此棘轮爪的停留位置为“第一停留位——第二停留位——第一停留位”的反复，也即可以通过制动连杆134控制踏板件131的转动角度实现“θ1——θ2——θ1”的反复，踏板件131带动传动主轴14实现转动角度“θ1——θ2——θ1”的反复，传动主轴14通过传动组件15将转动动作传递给脚轮12带动脚轮12实现“状态一——状态二——状态一”的反复。
为方便说明，本实施例设置第一停留位为解刹车停留位、第二停留位为刹车停留位，脚轮状态一为解刹车状态、脚轮状态二为刹车状态，则本实施例中央控制刹车系统1可以实现如下运动过程：踩一下踏板件131，棘轮爪1332停留在第二停留位，踏板件13逆时针转动θ角度位于θ2位置，传动主轴14逆时针转动，脚轮12处于状态二，也即刹车状态；再踩一下踏板件131，棘轮爪1332停留在第一停留位，踏板件13顺时针转动θ角度位于θ1位置，传动主轴14顺时针转动，脚轮12处于状态一，也即解刹车状态；再踩一下踏板件131，棘轮爪1332停留在第二停留位，踏板件13逆时针转动θ角度位于θ2位置，传动主轴14逆时针转动，脚轮12处于状态二，也即刹车状态；依次循环。
因此，本实施例中央控制刹车系统1能够实现踩一下踏板件脚轮刹车，再踩一下踏板件脚轮解刹车的功能，踩踏动作简单、容易实现且不会混淆，人机交互性好。
可以理解的，当使用者踩踏踏板件131使踏板件131逆时针转动θ角度时(刹车)，由于弹性件132提供了与踩踏力反向的弹性力，弹性件132起到了缓冲作用，因此在踩踏过程中，踏板件131、制动连杆134与棘轮组件133的动作过程稳定、不会突变，降低了中央控制刹车系统1的噪声；当使用者再踩踏踏板件131使踏板件131顺时针转动θ角度时(解刹车)，由于弹性件132 提供了与踩踏力反向的弹性力，也即提供了解锁力，使用者无需很大的力气即可实现可移动医疗设备的解刹车，同时解锁过程中踏板件131、制动连杆134与棘轮组件133的动作稳定、不会突变，也实现了降低噪声的作用。
参阅图4-8，图4为棘轮块1331的立体结构图，图5为棘轮块1331的另一角度的立体结构图，图6为棘轮块1331的俯视图一，图6仅示意性地表达轨迹槽的大致结构，未表示出棘轮块1331中的其它结构，图7为图6中棘轮块1331的A-A剖面图，图8为棘轮块1331的俯视图二。轨迹槽包括沿单一方向依次连接的第一位置I、沿棘轮爪1332运动方向上升的第一上升面a、第二位置II、第三位置III、第四位置IV、第五位置V、沿所述单一方向上升的第二上升面b和第六位置VI。第一位置I与第二位置II通过第一上升面a光滑连接。第二位置II与第三位置III形成台阶一，第三位置III与第四位置IV形成台阶二，第四位置IV与第五位置V形成台阶三，第五位置V与第六位置VI通过第二上升面b光滑连接，第六位置VI与第一位置I形成台阶四。第一台阶、第二台阶、第三台阶和第四台阶沿所述单一方向下落(如图4和图6中箭头所示的方向)。
如图8所示，第四位置IV与第一位置I之间的间距S小于第三位置III与第一位置I之间的间距S1且小于第五位置V与第一位置I之间的间距S2，换言之，从第三位置III至第四位置IV至第五位置V，大致形成“V”形轨迹(如图8中虚线表示的部分)。第四位置IV与第一位置I之间的间距S指的是第四位置IV与第一位置I之间的直线距离；第三位置III与第一位置I之间的间距S1指的是第三位置III与第一位置I之间的直线距离；第五位置V与第一位置I之间的间距S2指的是第五位置V与第一位置I之间的直线距离，如图8所示的示意图，所述直线距离的起始点大致落在第一位置I、第三位置III、第四位置IV和第五位置V的中心处。
如图4和图6所示，轨迹槽与棘轮块1331的一个边缘之间设有缺口G，本实施方式中，缺口G设于第一上升面a与棘轮块1331的边缘之间，将棘轮爪1332安装至轨迹槽的过程中，棘轮爪1332经过缺口G滑入轨迹槽，缺口G与轨迹槽之间设有台阶结构，棘轮爪1332进入轨迹槽后，台阶结构起限位作用，用于防止棘轮爪1332移出轨迹槽。
参阅图2-8，本实施例中，第一停留位处于第一位置I，第二停留位处于 第四位置IV，当棘轮爪1332位于第一位置I时，踏板件131处于θ1位置，当棘轮爪1332位于第四位置IV时，踏板件131处于θ2位置，具体的：第一停留位为棘轮爪1332初始位置，弹性件132的弹性力使棘轮爪1332紧靠在轨迹槽槽壁上且稳定停留在第一位置I，踏板件131处于θ1位置，中央控制刹车系统1处于解刹车状态，可移动医疗设备可自由移动；棘轮爪1332从第一停留位移动至第二停留位的运动过程中，踩踏踏板件131，踩踏力克服弹性力，使棘轮爪1332首先从第一位置I沿光滑连接的第一上升面a上升至第二位置II，再经过台阶一下落至第三位置III上，台阶一阻止棘轮爪1332逆向运动，此时不再踩踏踏板件131，由于第三位置III与第一位置I之间的间距大于第四位置IV与第一位置I之间的间距，弹性件132的弹性力使棘轮爪1332由第三位置III经过台阶二下落至第四位置IV，台阶二阻止棘轮爪1332逆向运动，同时由于第五位置V与第一位置I之间的间距大于第三位置III与第一位置I之间的间距，棘轮爪1332不会进一步掉落至第五位置V，棘轮爪1332稳定地停留在第四位置IV使踏板件131转动θ角度停留在θ2位置，传动主轴14同样逆时针转动θ角度停留在θ2位置，中央控制刹车系统1处于刹车状态，可移动医疗设备不可移动；棘轮爪1332从第二停留位移动至第一停留位的运动过程中，再次踩踏踏板件131，踩踏力克服弹性力使棘轮爪1332从第四位置IV经过台阶三下落至第五位置V，台阶三阻止棘轮爪1332逆向运动，此时不再踩踏踏板件131，弹性件132为踏板件131提供解锁力使踏板件131顺时针转动，棘轮爪1332首先由第五位置V沿光滑连接的第二上升面b上升至第六位置VI，再经过台阶四下落至第一位置I，台阶四阻止棘轮爪1332逆向运动，棘轮爪1332稳定地停留在第一位置使踩踏踏板件131顺时针转动θ角度停留在θ1位置，传动主轴14同样顺时针转动θ角度停留在θ1位置，中央控制刹车系统1处于解刹车状态，可移动医疗设备可以自由移动。
可以理解的，棘轮块1331轨迹槽结构的设计使得棘轮爪1332实现单向循环的间歇运动，同时可稳定停靠的第一位置I及第四位置IV使中央控制刹车系统1有稳定的刹车状态与解刹车状态，保障了可移动医疗设备行车状态控制的可靠性。
进一步的，参阅图2，弹性件132包括第一弹性部1321和与第一弹性部1321相对设置的第二弹性部1322，踏板件131包括承受踩踏力的第一面1311 和与第一面1311相对设置的第二面1312，第一弹性部1321抵接在基架11上，第二弹性部1322抵接在第二面1312，弹性件132提供与踩踏力相反的弹性力。弹性件132可以是钮簧、金属拉簧，金属压簧，气弹簧等弹簧或橡胶等非金属弹性体，也可以组合使用。可以理解的，如图2所示，弹性件132为钮簧时，弹性件132还包括弹性中部，弹性中部套接在传动主轴14外部，弹性件132弹性中部固定与踏板件131转动轴共线的位置上，能够为踏板件131提供更为稳定的弹性力。
一种实施方式中，参阅图4、图6，棘轮块1331中轨迹槽第一上升面a和/或第二上升面b设置成平滑的弧形表面，使得棘轮爪1332的移动的过程更加稳定。
参阅图4，棘轮块1331中轨迹槽第一位置I上设置有缓冲垫135，使棘轮爪1332经过台阶四下落至第一位置I时有所缓冲，缓冲垫135实现减震降噪的作用。所述第一位置I处设置有容纳空间，所述缓冲垫135置于所述容纳空间内，且所述缓冲垫135的上表面高于所述第一位置I所在平面。所述容纳空间的设置使得缓冲垫135定位准确、不会产生移动或掉落问题。进一步的，第三位置III、第四位置IV、第五位置V上也设置有缓冲垫135实现减震降噪的作用。
本发明一种实施方式中，参阅图4-5，所述棘轮块1331之所述第一位置I处、第三位置III处、第四位置IV处和第五位置V处均设有通孔，所述通孔使得棘轮块1331的背面与轨迹槽相通，可以理解的是，所述轨迹槽开设于所述棘轮块1331的正面。每个缓冲垫135均包括缓冲部与固定部，所有的所述缓冲部分别穿过相应位置处的所述通孔且突出于所述轨迹槽相应位置处的表面，所有的所述固定部相连接呈一体式的固定结构。棘轮组件133还包括固定件136，所述固定结构夹设于棘轮块1331的背面和固定件136之间。一体设置的缓冲垫135安装工艺简单，缓冲垫135缓冲部置于棘轮块1331通孔内定位准确、不会产生移动或掉落问题。
进一步的，可以通过改变棘轮块1331的轨迹槽结构实现中央控制刹车系统1三个停留位的切换，如轨迹槽还包括棘轮爪1332在运动过程中可停留的第三停留位，第三停留位设置在第一停留位与第二停留位之间，如此可实现踩一下刹车、再踩一下直行刹车、再踩一下解刹车的动作。第三停留位的设计与 第一停留位、第二停留位的设计相似，不再详细描述。可以理解的，三个停留位顺序的设置也可以依据可移动医疗设备具体的需求设计。
进一步的，参阅图1，传动主轴14包括一端和与一端相对的另一端，传动组件15包括连接传动主轴14一端的第一传动连杆和连接传动主轴14另一端的第二传动连杆，脚轮12包括布置在传动主轴14一端的第一组脚轮和布置在传动主轴14另一端的第二组脚轮，第一传动连杆连接控制第一组脚轮，第二传动杆连接控制第二组脚轮。可以理解的，本实施例中传动组件15与脚轮12的对称布置简化了使用者对可移动医疗设备的操作动作，更为方便快捷。
请参阅图9，本发明实施例二提供另一种中央控制刹车系统1，本实施例与实施例一的区别在于，还包括第二制动组件13’、第二传动主轴14’、第二传动组件15’和至少一个第二脚轮12’，第二制动组件13’与制动组件13结构及原理均一致，第二传动主轴14’与传动主轴14结构及原理均一致，第二传动组件15’与传动组件15结构及原理均一致，第二脚轮12’与脚轮12一致，制动组件13通过传动主轴14与传动组件15控制3个脚轮12，第二制动组件13’通过第二传动主轴14’、第二传动组件15’控制一个第二脚轮12’。
具体而言，本实施方式中，第二制动组件13’的具体架构为：所述第二制动组件包括第二踏板件、第二弹性件、第二制动连杆及第二棘轮组件。第二踏板件固定于所述第二传动主轴，用于承受第二踩踏力，并带动所述第二传动主轴转动。第二弹性件弹性连接于所述第二踏板件和所述基架之间，所述第二弹性件对所述第二踏板件施加与所述第二踩踏力反向的第二弹性力。第二制动连杆的一端活动连接于所述第二踏板件。第二棘轮组件包括固定在所述基架上的第二棘轮块和连接于所述第二制动连杆另一端的第二棘轮爪，所述第二棘轮块包括封闭环形的第二轨迹槽，所述第二轨迹槽内设第一停靠位和第二停靠位。所述第二踏板件在所述第二踩踏力及所述第二弹性力的作用下带动所述第二棘轮爪在所述第二轨迹槽内单方向地在所述第一停靠位和所述第二停靠位之间循环运动。本实施方式中第二制动组件13’之第一停靠位与制动组件13中的第一停留位均为棘轮爪在轨迹槽中停靠的位置，字面表述不同，但二者意思相同。同样，第二停靠位和第二停留位亦表达相同的意思。
可以理解的，中央控制刹车系统1中脚轮12与第二脚轮12’的独立控制可以使应用该中央控制刹车系统1的医疗仪器实现更多样的运动模式。可以理解 的，脚轮12和第二脚轮12’的数量可以依据需求灵活设置。
进一步的，脚轮12是刹车脚轮、第二脚轮12’是直行刹车脚轮，或者脚轮12是直行刹车脚轮、第二脚轮12’是刹车脚轮。可以理解的，刹车脚轮和直行刹车脚轮的位置和数量均可以依据具体需求灵活设置。
请参阅图10，本发明实施例三提供另一种可移动医疗设备，包括中央控制刹车系统1、控制面板2、显示器3、支撑壁4和主机5，中央控制刹车系统1采用上述实施例一或实施例二中的中央控制刹车系统1。可以理解的，本实施例中可移动医疗设备可以实现踩一下踏板件脚轮刹车，再踩一下踏板件脚轮解刹车的功能，踩踏动作简单、省力且不会混淆，人机交互性好，中央控制刹车系统切换动作平稳、噪声小。
以上对本发明实施例所提供的中央控制刹车系统及可移动医疗设备进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (12)

  1. 一种中央控制刹车系统，包括基架、安装在所述基架底部的至少一个脚轮、传动主轴、制动组件以及传动组件，所述制动组件用于控制所述传动主轴的转动，所述传动组件连接于所述传动主轴和所述脚轮之间，其特征在于，所述制动组件包括：
    踏板件，固定于所述传动主轴，用于承受踩踏力，并带动所述传动主轴转动；
    弹性件，弹性连接于所述踏板件和所述基架之间，所述弹性件对所述踏板件施加与所述踩踏力反向的弹性力；
    制动连杆，一端活动连接于所述踏板件；及
    棘轮组件，包括固定在所述基架上的棘轮块和连接于所述制动连杆另一端的棘轮爪，所述棘轮块包括封闭环形的轨迹槽，所述轨迹槽内设第一停留位和第二停留位；
    所述踏板件在所述踩踏力及所述弹性力的作用下带动所述棘轮爪在所述轨迹槽内沿单一方向在所述第一停留位和所述第二停留位之间循环运动。
  2. 如权利要求1所述的中央控制刹车系统，其特征在于，所述轨迹槽包括沿所述单一方向依次连接的第一位置、第一上升面、第二位置、第三位置、第四位置、第五位置、第二上升面和第六位置，所述第一位置和所述第二位置之间通过所述第一上升面光滑连接，所述第二位置与所述第三位置之间形成台阶一、所述第三位置与所述第四位置之间形成台阶二、所述第四位置与所述第五位置之间形成台阶三，所述第五位置与所述第六位置之间通过所述第二上升面光滑连接，所述第六位置与所述第一位置之间形成台阶四，所述台阶一、所述台阶二、所述台阶三及所述台阶四均沿所述单一方向下落，所述第四位置与所述第一位置之间的间距小于所述第三位置与所述第一位置之间的间距且小于所述第五位置与所述第一位置之间的间距，所述第一停留位处于所述第一位置，所述第二停留位处于所述第四位置。
  3. 如权利要求2所述的中央控制刹车系统，其特征在于，所述弹性件包括第一弹性部和与第一弹性部相对设置的第二弹性部，所述第一弹性部抵接在所述基架上，所述踏板件包括用于承受所述踩踏力的第一面和与第一面相对设 置的第二面，所述第二弹性部抵接在所述踏板件第二面上。
  4. 如权利要求2所述的中央控制刹车系统，其特征在于，所述第一上升面和/或所述第二上升面为平滑的弧形表面。
  5. 如权利要求2所述的中央控制刹车系统，其特征在于，所述轨迹槽还包括第三停留位，所述第三停留位设置在所述第一停留位与所述第二停留位之间，所述踏板件在所述踩踏力及所述弹性力的作用下带动所述棘轮爪在所述轨迹槽内沿单一方向在所述第一停留位、所述第三停留位和所述第二停留位之间循环运动。
  6. 如权利要求2所述的中央控制刹车系统，其特征在于，所述第一位置处设置有缓冲垫。
  7. 如权利要求6所述的中央控制刹车系统，其特征在于，所述第一位置处设置有容纳空间，所述缓冲垫置于所述容纳空间内，且所述缓冲垫的上表面高于所述第一位置所在平面。
  8. 如权利要求6所述的中央控制刹车系统，其特征在于，所述第三位置、所述第四位置和所述第五位置处亦分别设置有缓冲垫，所述第一位置处的缓冲垫、第三位置处的缓冲垫、第四位置处的缓冲垫和第五位置处的缓冲垫一体设置。
  9. 如权利要求8所述的中央控制刹车系统，其特征在于，所述棘轮块之所述第一位置处、第三位置处、第四位置处和第五位置处均设有通孔，所述第一位置处的缓冲垫、第三位置处的缓冲垫、第四位置处的缓冲垫和第五位置处的缓冲垫均包括缓冲部与固定部，所有的所述缓冲部分别穿过相应位置处的所述通孔且突出于所述轨迹槽相应位置处的表面，所有的所述固定部相连接呈一体式的固定结构，所述棘轮组件还包括固定件，所述固定结构固定于所述固定件和所述棘轮块之间。
  10. 如权利要求2所述的中央控制刹车系统，其特征在于，所述传动组件包括第一传动连杆和第二传动连杆，所述脚轮包括布置在所述传动主轴一端的第一组脚轮和布置在所述传动主轴另一端的第二组脚轮，所述第一传动连杆连接于所述第一组脚轮与所述传动主轴一端之间，所述第二传动杆连接于所述第二组脚轮与所述传动主轴另一端之间。
  11. 如权利要求2所述的中央控制刹车系统，其特征在于，还包括安装在 所述基架底部的至少一个第二脚轮、第二传动主轴、第二制动组件以及第二传动组件，所述第二制动组件用于控制所述第二传动主轴的转动，所述第二传动组件连接于所述第二传动主轴和所述第二脚轮之间，所述第二制动组件包括：
    第二踏板件，固定于所述第二传动主轴，用于承受第二踩踏力，并带动所述第二传动主轴转动；
    第二弹性件，弹性连接于所述第二踏板件和所述基架之间，所述第二弹性件对所述第二踏板件施加与所述第二踩踏力反向的第二弹性力；
    第二制动连杆，一端活动连接于所述第二踏板件；及
    第二棘轮组件，包括固定在所述基架上的第二棘轮块和连接于所述第二制动连杆另一端的第二棘轮爪，所述第二棘轮块包括封闭环形的第二轨迹槽，所述第二轨迹槽内设第一停靠位和第二停靠位；
    所述第二踏板件在所述第二踩踏力及所述第二弹性力的作用下带动所述第二棘轮爪在所述第二轨迹槽内单方向地在所述第一停靠位和所述第二停靠位之间循环运动。
  12. 一种可移动医疗设备，其特征在于，包括权力要求1-11任一项所述的中央控制刹车系统。
PCT/CN2015/087047 2015-08-14 2015-08-14 中央控制刹车系统及可移动医疗设备 WO2017028035A1 (zh)

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