Central braking system and medical equipment

Abstract

The utility model provides a central braking system and medical equipment, and relates to the technical field of medical instruments, the central braking system comprises a plurality of central control wheel assemblies, a base, a main transmission mechanism and a two-way pedal, the two-way pedal comprises a first sub-pedal and a second sub-pedal, a set angle is formed between the first sub-pedal and the second sub-pedal, and the set angle is smaller than 180 degrees; the power ends of the main transmission mechanism are connected with the two-way pedal and arranged on the two sides of the base respectively. The control end of the main transmission mechanism is connected with a plurality of center control wheel assemblies, and brake mechanisms are arranged in the center control wheel assemblies. When the first sub-pedal is treaded, the bidirectional pedal provides power for the main transmission mechanism, and the braking mechanisms of the plurality of central control wheel assemblies are controlled to brake through the main transmission mechanism; when the second sub-pedal is treaded, the two-way pedal provides power for the main transmission mechanism, and the braking mechanisms of the multiple central control wheel assemblies are controlled by the main transmission mechanism to release braking. The operation convenience and the man-machine interaction of the system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a central brake system and a medical device. BACKGROUND

[0002] With the development of science and technology, more and more technologies are applied to the medical field, creating a lot of convenient medical devices, liberating part of the medical resources, and having a very large positive impact on medicine. Some medical devices have a large size and weight, such as an anesthesia machine, a breathing machine, etc. For the sake of convenience, wheels are usually installed on medical devices that need to be moved, and a central brake system is also needed to control the brake or release of the medical device with installed wheels.

[0003] In related technologies, the central brake system is a control system that uses one brake mechanism to control multiple casters to brake or release at the same time, and is not affected by the direction of the wheels. Only by controlling the separately set pedal assembly, multiple wheels can be braked or released at the same time, which can effectively improve the efficiency and operation convenience. The mainstream central brake system currently has a double-pedal brake system and a single-pedal brake system. The double-pedal brake system uses one pedal to control the caster brake and another pedal to control the caster release. The single-pedal brake system uses different operation modes of the same pedal to control the caster brake and release. When the pedal is stepped on, the caster brakes, and when the pedal is hooked, the caster releases. It can be seen that the double-pedal brake system is inconvenient to operate and needs to operate two pedals respectively. Although the single-pedal brake system is more convenient to operate and is not easy to confuse the brake pedal and the release pedal, it is more widely used in practical applications. However, in the operation, the single-pedal brake system needs to be reset by stepping on and hooking the pedal to realize the functions of braking and releasing, and the pedal needs to be reset by hooking the back of the foot when releasing the brake, which is easy to hurt the back of the foot and the human-machine interaction is not good.

[0004] Therefore, it is urgent to redesign a central brake system and a medical device, and to overcome the above-mentioned defects. SUMMARY

[0005] The embodiments of the present application provide a central brake system and a medical device to improve the operation convenience and human-machine interaction of the system.

[0006] In a first aspect, the embodiments of the present application provide a central brake system, comprising a plurality of central control wheel assemblies, a base, a main transmission mechanism, and a bidirectional pedal, wherein the bidirectional pedal comprises a first sub-pedal and a second sub-pedal, the first sub-pedal and the second sub-pedal have a set angle therebetween, and the set angle is less than 180°.

[0007] The power end of the main transmission mechanism is connected with the bidirectional pedal, and the main transmission mechanism and the bidirectional pedal are respectively arranged on both sides of the base.

[0008] The control end of the main transmission mechanism is connected with the plurality of central control wheel assemblies, and a brake mechanism is arranged in the central control wheel assembly;

[0009] When the first sub-pedal is stepped on, the bidirectional pedal provides power to the main transmission mechanism, and the brake mechanism of the plurality of central control wheel assemblies is controlled to brake by the main transmission mechanism.

[0010] When the second sub-pedal is stepped on, the bidirectional pedal provides power to the main transmission mechanism, and the brake mechanism of the plurality of central control wheel assemblies is controlled to un-brake by the main transmission mechanism.

[0011] Optionally, the main transmission mechanism comprises a first transmission mechanism, a second transmission mechanism, a first crank, a second crank and a torsion shaft.

[0012] The first transmission mechanism and the second transmission mechanism are arranged on one side of the base, and the bidirectional pedal is arranged on the other side of the base.

[0013] The control end of the first transmission mechanism is connected with at least one central control wheel assembly, the power end of the first transmission mechanism is connected with the first end of the first crank, the second end of the first crank is connected with the bidirectional pedal through the base, a first crank shaft hole is arranged on the handle body of the first crank, and the first end of the torsion shaft is inserted into the first crank shaft hole to form fixed connection.

[0014] The control end of the second transmission mechanism is connected with at least one central control wheel assembly, the power end of the second transmission mechanism is connected with the first end of the second crank, a second crank shaft hole is arranged on the second end of the second crank, and the second end of the torsion shaft is inserted into the second crank shaft hole to form fixed connection.

[0015] When the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission mechanism through the first crank, controls the brake mechanism of at least one central control wheel assembly connected with the first transmission mechanism to brake or un-brake, and provides power to the second transmission mechanism through the torsion shaft connected with the first crank and the second crank, controls the brake mechanism of at least one central control wheel assembly connected with the second transmission mechanism to brake or un-brake.

[0016] Optionally, the first transmission mechanism comprises a first transmission rod and at least one first control member, and the second transmission mechanism comprises a second transmission rod and at least one second control member.

[0017] The first transmission rod is connected with the first end shaft of the at least one first control member, the second end of the first control member is connected with the brake mechanism of the central control wheel assembly, and the first transmission rod is connected with the first end shaft of the first crank.

[0018] The second transmission rod is connected with the first end shaft of the at least one second control member, the second end of the second control member is connected with the brake mechanism of the central control wheel assembly, and the second transmission rod is connected with the first end shaft of the second crank;

[0019] When the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission rod through the first crank, the first transmission rod drives the first end of the first control member to swing, and the second end of the first control member controls the brake or release brake of the brake mechanism of the corresponding central control wheel assembly; and the second transmission rod is provided with power through the torsion shaft connecting the first crank and the second crank, the second transmission rod drives the first end of the second control member to swing, and the second end of the second control member controls the brake or release brake of the brake mechanism of the corresponding central control wheel assembly.

[0020] Optionally, the first transmission rod has a plurality of first rod holes, and the second transmission rod has a plurality of second rod holes;

[0021] The first end of the first control member diverges into two first legs, the first leg has a first leg hole at the end, and a support shaft passes through the first leg hole and a corresponding first rod hole on the first transmission rod to connect the first end of the first control member with the first transmission rod;

[0022] The first end of the first crank diverges into two first handles, the first handle has a first handle hole at the end, and a support shaft passes through the first handle hole and a corresponding first rod hole on the first transmission rod to connect the first end of the first crank with the first transmission rod;

[0023] The first end of the second control member diverges into two second legs, the second leg has a second leg hole at the end, and a support shaft passes through the second leg hole and a corresponding second rod hole on the second transmission rod to connect the first end of the second control member with the second transmission rod;

[0024] The first end of the second crank diverges into two second handles, the second handle has a second handle hole at the end, and a support shaft passes through the second handle hole and a corresponding second rod hole on the second transmission rod to connect the first end of the second crank with the second transmission rod.

[0025] Optionally,

[0026] The second end of the first control end has a first positioning hole, and a first brake shaft of the brake mechanism of the corresponding central control wheel assembly is clamped in the first positioning hole to fixedly connect the second end of the first control member with the first brake shaft;

[0027] The second end of the second control end has a second positioning hole, and a second brake shaft of a brake mechanism of a corresponding central control wheel assembly is clamped in the second positioning hole to fixedly connect the second end of the second control end with the second brake shaft.

[0028] When the bidirectional pedal is stepped on, the first end of the first control member is swung by the first transmission rod connected with the first crank, the first brake shaft of the second end of the first control member obtains torsion force to control the brake mechanism of the corresponding central control wheel assembly to brake or release the brake, and the second end of the second control member is swung by the second transmission rod connected with the second crank, the second brake shaft of the second end of the second control member obtains torsion force to control the brake mechanism of the corresponding central control wheel assembly to brake or release the brake.

[0029] Optionally, the first brake shaft is connected with a first support seat shaft, the second brake shaft is connected with a second support seat shaft, and the first support seat and the second support seat are fixed on the base respectively.

[0030] The first end of the torsion shaft is connected with a first bearing seat shaft, the second end of the torsion shaft is connected with a second bearing seat shaft, and the first bearing seat and the second bearing seat are fixed on the base respectively.

[0031] Optionally, the first surface of the bidirectional pedal is provided with an anti-skid structure, and the first surface is a surface opposite to a second surface of the bidirectional pedal connected with the first crank.

[0032] Optionally, the base is provided with a magnetic attraction buffering assembly, the magnetic attraction buffering assembly comprises a magnet fixing plate, a first magnet, a buffering pad and a magnetic attraction female part, a second magnet is arranged on a second surface of the bidirectional pedal, and the second magnet is arranged opposite to the magnetic attraction buffering assembly.

[0033] The magnet fixing plate is fixedly arranged on the base, the buffering pad and the first magnet are alternately arranged on the same plane, and the buffering pad and the first magnet are fixed on the magnet fixing plate through the magnetic attraction female part.

[0034] When the bidirectional pedal is stepped on, the second magnet and the first magnet of the magnetic attraction buffering assembly are attracted and contacted.

[0035] Optionally, the central control wheel assembly comprises a central control wheel fixing sleeve and a central control wheel, the central control wheel is fixedly arranged at a first end of the central control wheel fixing sleeve, and a second end of the central control wheel fixing sleeve is fixedly arranged on the base; the central control wheel is provided with a brake structure, and the brake structure is connected with the first brake shaft or the second brake shaft.

[0036] In a second aspect, the embodiments of the present application provide a medical device, the medical device comprising the central brake system according to any one of the first aspect.

[0037] The present application has the following advantages:

[0038] The central brake system provided by the embodiments of the present application comprises a plurality of central wheel assemblies, a base, a main transmission mechanism and a bidirectional pedal. The bidirectional pedal comprises a first sub-pedal and a second sub-pedal with a set angle, and the set angle is less than 180°. The main transmission mechanism is connected to the bidirectional pedal and the plurality of central wheel assemblies. When the first sub-pedal is stepped on, the bidirectional pedal provides power in one direction to the main transmission mechanism to control the brake mechanism of the plurality of central wheel assemblies to brake. When the second sub-pedal is stepped on, the bidirectional pedal provides power in the opposite direction to the main transmission mechanism to control the brake mechanism of the plurality of central wheel assemblies to release the brake. That is, the brake and the brake release can be realized by stepping on the bidirectional pedal, which is more convenient than the two pedals in the prior art for controlling the brake and the brake release. Compared with the single pedal stepping and hooking reset in the prior art for controlling the brake and the brake release, the bidirectional pedal does not need to be hooked by the back of the foot, and has better human-computer interaction.

[0039] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be learned from the practice of the present application. The purposes and other advantages of the present application can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative labor.

[0041] Figure 1 A structural schematic diagram of a central brake system provided by the embodiments of the present application is shown in FIG. 1.

[0042] Figure 2 A structural schematic diagram of another central brake system provided by the embodiments of the present application is shown in FIG. 2.

[0043] Figure 3 A structural schematic diagram of a transmission mechanism provided by the embodiments of the present application is shown in FIG. 3.

[0044] Figure 4 A structural schematic diagram of a first transmission mechanism provided by the embodiments of the present application is shown in FIG. 4.

[0045] Figure 5 A structure schematic view of a second transmission mechanism provided for an embodiment of the present application is shown in FIG. 6;

[0046] Figure 6 A structure schematic view of a central control wheel assembly provided for an embodiment of the present application is shown in FIG. 7;

[0047] Figure 7 A structure schematic view of a bidirectional pedal provided for an embodiment of the present application is shown in FIG. 8;

[0048] Figure 8 A structure schematic view of a magnetic attraction structure provided for an embodiment of the present application is shown in FIG. 9;

[0049] Figure 9 A structure schematic view of another magnetic attraction structure provided for an embodiment of the present application is shown in FIG. 10. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. The embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0051] It should be noted that in the description of the present application, “at least one” means one or more, and multiple means two or more. Therefore, “multiple” can also be understood as “at least two” in the embodiments of the present application. In addition, it should be understood that in the description of the present application, “first”, “second”, etc. are used only for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance or indicating or implying order.

[0052] It should be noted that “connection” in the embodiments of the present application can be understood as mechanical connection, and the connection between one component / assembly / part and another component / assembly / part can be direct or indirect connection. For example, A is connected with B, which can be that A is directly connected with B, or A is indirectly connected with B through one or more other components and / or assemblies and / or parts. For example, A is connected with B, which can also be that A is directly connected with C, C is directly connected with B, and A is connected with B through C.

[0053] In the trolley of the traditional medical equipment, usually equipped with multiple casters with brake and unbrake function, in the use process, if you want to make the trolley reliably stop, you need to lock each caster separately, and the trolley needs to turn during movement, so a trolley generally needs to be equipped with at least two universal movable casters, and when stopping, the brake pedal position on the universal movable caster may stop at each position, if the pedal on the caster is rotated to the bottom of the vehicle, the caster pedal needs to be manually rotated to unlock the caster, accordingly, several casters need to be operated respectively, it can be seen that the traditional locking form of the medical equipment trolley affects the efficiency and has certain safety hazards. In the subsequent continuous improvement, a central brake system is designed, which can control the brake or unbrake of multiple casters at the same time through two pedals, or control the brake or unbrake of multiple casters at the same time by stepping or hooking the single pedal. Although compared with the brake system of the traditional medical equipment trolley, there has been a great improvement, but the double-pedal brake system still needs to operate two pedals respectively, and there is still the problem of inconvenient operation. The single-pedal brake system can only operate one pedal, but the hooking reset operation is easy to hurt the instep, the human-computer interaction is poor, and there is still the problem of inconvenient operation. In addition, the single-pedal brake system also has the problems of complex structure, large space occupation and inconvenient operation. For example, the related document CN201621455155.5 discloses a central brake system and a medical equipment base. First, although this scheme can realize the functions of brake and unbrake by using a single pedal, the instep needs to be hooked to reset when unbraking, which is easy to hurt the instep and the human-computer interaction is not good. Secondly, in the process of force transmission, when four casters are unlocked at the same time, the stepping force is large due to the lack of necessary force-saving mechanism, which affects the operation experience of the user. For example, in the caster device of CN201310237343.5, the same defect of needing to hook the pedal to realize the reset of unlocking exists. For example, the central control brake system and the pushcart type movable medical equipment provided by CN201010501406.X solve the problems of poor human-computer interaction and inconvenient operation, but the overall structure of the implementation method is relatively large, occupies a large space of the base, and is not conducive to the placement of other parts in the base, thereby reducing the space utilization rate of the machine parts.

[0054] Therefore, an embodiment of the present application provides a central brake system. When the bidirectional pedal is stepped, the main transmission mechanism controls multiple central control wheel assemblies to brake or unbrake. Specifically, stepping the first sub-pedal can provide a power in one direction to the main transmission mechanism to control the multiple central control wheel assemblies to brake, and stepping the second pedal can provide a power in the opposite direction to the main transmission mechanism to control the multiple central control wheel assemblies to unbrake. In this way, the system operation convenience and human-computer interaction can be improved by a simple structure.

[0055] The following will introduce the application scenarios to which the technical solutions of the embodiments of the present application can be applied. It should be noted that the following introduction of the application scenarios is merely for the purpose of understanding the present application and is not intended to limit the present application. In the implementation process, the technical solutions provided by the embodiments of the present application can be flexibly applied according to actual needs.

[0056] The scheme provided by the embodiments of the present application can be applied in most application scenarios of central brake systems. For example, the central brake system provided by the embodiments of the present application can be applied in medical devices such as respirators, anesthesia machines, carts, beds, operating beds, and the like, and can also be applied in various fields such as household movable storage shelves and movable furniture, which will not be enumerated one by one here.

[0057] The central brake system provided by the exemplary embodiments of the present application will be described below in combination with the above-described application scenarios and with reference to the accompanying drawings. It should be noted that the above-described application scenarios are merely shown for the purpose of facilitating the understanding of the spirit and principles of the present application, and the embodiments of the present application are not limited in this respect.

[0058] Referring to Figure 1 FIG. 1 shows a structural schematic diagram of a central brake system provided by an embodiment of the present application. The central brake system includes a plurality of central wheel assemblies 104, a base 105, a main transmission mechanism 103, and a bidirectional pedal including a first sub-pedal 101 and a second sub-pedal 102. The first sub-pedal 101 and the second sub-pedal 102 have a set angle therebetween, and the set angle is less than 180°.

[0059] The power end of the main transmission mechanism 103 is connected with the bidirectional pedal, and the main transmission mechanism 103 and the bidirectional pedal are respectively arranged on the two sides of the base 105.

[0060] The control end of the main transmission mechanism 103 is connected with the plurality of central wheel assemblies 104, and a brake mechanism is arranged in each of the central wheel assemblies 104.

[0061] When the first sub-pedal 101 is stepped on, the bidirectional pedal provides power to the main transmission mechanism 103, and the brake mechanism of each of the plurality of central wheel assemblies 104 is controlled to brake by the main transmission mechanism 103.

[0062] When the second sub-pedal 102 is stepped on, the bidirectional pedal provides power to the main transmission mechanism 103, and the brake mechanism of each of the plurality of central wheel assemblies 104 is controlled to unbrake by the main transmission mechanism 103.

[0063] In one embodiment, the first sub-pedal 101 and the second sub-pedal 102 can be integrally formed as a whole, or the first sub-pedal 101 and the second sub-pedal 102 can be fixedly connected as a whole, and the first sub-pedal 101 and the second sub-pedal 102 have a set angle therebetween, and the set angle is less than 180°, and the set angle opening faces away from the ground, facilitating the stepping of the first sub-pedal 101 or the second sub-pedal 102 to actuate the main transmission mechanism 103.

[0064] In one embodiment, the main transmission mechanism 103 can transmit the power in the first direction obtained by stepping the first sub-pedal 101 to the brake mechanism of the plurality of central wheel assemblies to control the central wheel brake, and can transmit the power in the second direction obtained by stepping the second sub-pedal 102 to the brake mechanism of the plurality of central wheel assemblies to control the central wheel unbrake, wherein the first direction and the second direction are opposite directions. In this way, the brake and the unbrake can be realized by stepping the bidirectional pedal, which is convenient to operate and can improve the human-machine interaction.

[0065] In one embodiment, as shown in Figure 2 , a structure schematic diagram of a central brake system provided by the embodiment of the present application is provided, the bidirectional pedal includes a first sub-pedal 201 and a second sub-pedal 202, a main transmission mechanism 203, and a plurality of central wheel assemblies 204. Specifically, the bidirectional pedal can be fixedly connected with a transmission handle 205, the transmission handle 205 is connected with a brake torsion shaft 206, the brake torsion shaft 206 is connected with the central wheel assembly 204 and connected with a brake mechanism in the corresponding central wheel assembly 204, and the brake torsion shaft 206 is further connected with a first swing arm 207, the first swing arm 207 is connected with a second swing arm 209 through a transmission shaft 208, the second swing arm 209 is connected with a brake piece 210 in the corresponding central wheel assembly 204. Based on this, when the first sub-pedal 201 or the second sub-pedal 202 of the bidirectional pedal is stepped, the transmission handle 205 transmits power to the brake torsion shaft 206 to convert it into torsion, the torsion brakes or unbrakes the central wheel assembly 204 connected with the brake torsion shaft 206 through the brake torsion shaft 206, at the same time, the brake torsion shaft 206 drives the first swing arm 207 to swing, one end of the first swing arm 207 drives the transmission shaft 208 and the second swing arm 209, and the second swing arm 209 drives the brake piece 210 to brake or unbrake the corresponding central wheel assembly 204. That is, the connection mode of the bidirectional pedal, the main transmission mechanism 203, and the plurality of central wheel assemblies 204, and the specific structure of the main transmission mechanism 203 and the plurality of central wheel assemblies 204 can be various, and can be set as needed in specific implementation.

[0066] Based on the above Figure 1 , a central brake system is provided, and a transmission mechanism is provided, as shown in Figure 3As shown, the main transmission mechanism 300 comprises a first transmission mechanism 303, a second transmission mechanism 307, a first crank 302, a second crank 306 and a torsion shaft 305; the first transmission mechanism 303 and the second transmission mechanism 307 are arranged on one side of the base, and the bidirectional pedal 301 is arranged on the other side of the base;

[0067] The control end of the first transmission mechanism 303 is connected with the at least one central control wheel assembly 304, the power end of the first transmission mechanism 303 is connected with the first end of the first crank 302, the second end of the first crank 302 is connected with the bidirectional pedal 301 through the base, and the handle body of the first crank 302 is provided with a first crank shaft hole, and the first end of the torsion shaft 305 is inserted into the first crank shaft hole to form a fixed connection;

[0068] The control end of the second transmission mechanism 307 is connected with the at least one central control wheel assembly 304, and the power end of the second transmission mechanism 307 is connected with the first end of the second crank 306; the second end of the second crank 306 is provided with a second crank shaft hole, and the second end of the torsion shaft 305 is inserted into the second crank shaft hole to form a fixed connection;

[0069] Wherein, when the bidirectional pedal 301 is stepped on, the bidirectional pedal provides power to the first transmission mechanism 303 through the first crank 302, controls the brake or unbrake of the brake mechanism of the at least one central control wheel assembly 304 connected with the first transmission mechanism 303, and provides power to the second transmission mechanism 307 through the torsion shaft 305 connected with the first crank 302 and the second crank 306, and controls the brake or unbrake of the brake mechanism of the at least one central control wheel assembly 304 connected with the second transmission mechanism 307.

[0070] In one embodiment, if the central brake system has a certain number of central control wheels on the left and right sides, respectively, the transmission mechanism, i.e., the first transmission mechanism and the second transmission mechanism, can be arranged on the left side at least one central control wheel and the right side at least one central control wheel, respectively, so that the brake or unbrake can be quickly and reliably controlled when the bidirectional pedal is stepped on.

[0071] In one embodiment, the bidirectional pedal 301 is fixedly connected with the first crank 302 through a screw.

[0072] Based on the above Figure 3 transmission mechanism, the embodiment of the application provides a structural schematic view of a first transmission mechanism and a structural schematic view of a second transmission mechanism, as shown in Figure 4 , 5 As shown, the first transmission mechanism 400 comprises a first transmission rod 401 and at least one first control member 402, and the second transmission mechanism 500 comprises a second transmission rod 501 and at least one second control member 502.

[0073] The first transmission rod 401 is connected with the first end shaft of at least one first control member 402, the second end of the first control member 402 is connected with the brake mechanism of the central control wheel assembly, and the first transmission rod 401 is connected with the first end shaft of the first crank 403;

[0074] The second transmission rod 501 is connected with the first end shaft of at least one second control member 502, the second end of the second control member 502 is connected with the brake mechanism of the central control wheel assembly, and the second transmission rod 501 is connected with the first end shaft of the second crank 503;

[0075] When the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission rod 401 through the first crank 403, the first transmission rod 401 drives the first end of the first control member 402 to swing, controls the brake or releases the brake of the brake mechanism of the corresponding central control wheel assembly through the second end of the first control member 402, and provides power to the second transmission rod 501 through the torsion shaft connected with the first crank 403 and the second crank 503, the second transmission rod 501 drives the first end of the second control member 502 to swing, and controls the brake or releases the brake of the brake mechanism of the corresponding central control wheel assembly through the second end of the second control member 502.

[0076] In an embodiment, the first transmission rod 401 and the second transmission rod 501 drive the corresponding first control member 402 and the second control member 502 to swing respectively, and the swinging process drives the brake mechanism of the corresponding central control wheel assembly, brakes or releases the brake of the central control wheel, the first transmission rod 401 and the second transmission rod 501 of the above structure are below the connection points of the first control member 402 and the second control member 502 and the brake mechanism of the central control wheel assembly, do not need to overcome gravity to swing, can save the strength required for stepping on the bidirectional pedal when braking or releasing the brake, and reduce the operation difficulty.

[0077] In an embodiment, the shaft connection mode of the first transmission rod 401 and the first control member 402 and the shaft connection mode of the second transmission rod 501 and the second control member 502 can be connected in a rivet, screw, pin or other mode, and the mode of shaft connection is not limited here and can be set as required.

[0078] Based on the above Figure 4 The structure diagram of the first transmission mechanism 400, and Figure 5 The structure diagram of the second transmission mechanism 500, the embodiment of the application provides a shaft connection mode: the first transmission rod 401 has a plurality of first rod holes, and the second transmission rod 501 has a plurality of second rod holes;

[0079] The first end of the first control member 402 diverges two first legs 404, the first leg hole is formed at the end of the first leg 404, and the support shaft 405 passes through the first leg hole and the corresponding first rod hole of the first transmission rod 401, so that the first end of the first control member 402 is connected with the first transmission rod 401 in the shaft connection mode;

[0080] The first end of the first crank 403 bifurcates two first handle legs 406, the first handle legs 406 have first handle leg holes at the ends, and a support shaft 407 passes through the first handle leg holes and corresponding first rod holes on the first transmission rod 401 to axially connect the first end of the first crank 403 with the first transmission rod 401;

[0081] The first end of the second control member 502 bifurcates two second handle legs 504, the second handle legs 504 have second handle leg holes at the ends, and a support shaft 505 passes through the second handle leg holes and corresponding second rod holes on the second transmission rod 501 to axially connect the first end of the second control member 502 with the second transmission rod 501;

[0082] The first end of the second crank 503 bifurcates two second handle legs 506, the second handle legs 506 have second handle leg holes at the ends, and a support shaft 507 passes through the second handle leg holes and corresponding second rod holes on the second transmission rod 501 to axially connect the first end of the second crank 503 with the second transmission rod 501.

[0083] In an embodiment, the two first handle legs 404 of the first control member 402 and the two first handle legs 406 of the first crank 403 are axially connected on the first transmission rod 401, the two second handle legs 504 of the second control member 502 and the two second handle legs 506 of the second crank 503 are axially connected on the second transmission rod 501, so that the axial connection between the control member, the crank and the transmission rod can be limited, the reliability of the connection between the parts is ensured, useless relative movement between the parts is prevented, the power of the bidirectional pedal is converted into friction force and consumed, the strength required for braking and unbraking is saved, the power of the transmission rod is received and transmitted through the two side handle legs or handle legs, the force between the parts is uniform, and the stability of the mechanism is ensured.

[0084] Based on the above Figure 4 a structural schematic view of the first transmission mechanism 400, and Figure 5 a structural schematic view of the second transmission mechanism 500, the embodiment of the application provides a connection mode of a transmission mechanism and a braking mechanism:

[0085] The second end of the first control member 402 has a first positioning hole, and a first brake shaft 408 of the braking mechanism of the corresponding center control wheel assembly is clamped in the first positioning hole to fixedly connect the second end of the first control member 402 with the first brake shaft 408;

[0086] The second end of the second control member 502 has a second positioning hole, and a second brake shaft 508 of the braking mechanism of the corresponding center control wheel assembly is clamped in the second positioning hole to fixedly connect the second end of the second control member 502 with the second brake shaft 508;

[0087] When the bidirectional pedal is stepped on, the bidirectional pedal drives the first end of the first control member 402 to swing through the first transmission rod 401 connected with the first crank 403, so that the first brake shaft 408 at the second end of the first control member 402 obtains a torsion force to control the brake or release brake of the brake mechanism of the corresponding central control wheel assembly; and the power is provided to the second transmission rod 501 through the torsion shaft connecting the first crank 403 and the second crank 503, the second transmission rod 501 connected with the second crank 503 drives the first end of the second control member 502 to swing, so that the second brake shaft 508 at the second end of the second control member 502 obtains a torsion force to control the brake or release brake of the brake mechanism of the corresponding central control wheel assembly.

[0088] Based on the above Figure 4 The structural diagram of the first transmission mechanism 400, and Figure 5 The structural diagram of the second transmission mechanism 500, the embodiment of the present application provides a transmission mechanism fixed on the base structure: the first brake shaft 408 is connected with the first support seat 409, the second brake shaft 508 is connected with the second support seat 509, and the first support seat 409 and the second support seat 509 are fixed on the base respectively.

[0089] The first end of the torsion shaft is connected with the first bearing seat 410, and the second end of the torsion shaft is connected with the second bearing seat 510, and the first bearing seat 410 and the second bearing seat 510 are fixed on the base respectively.

[0090] In one embodiment, the first support seat 409 and the second support seat 509 can be fixed on the base by welding or screw fixing and the like, and the first bearing seat 410 and the second bearing seat 510 can also be fixed on the base by welding or screw fixing and the like, and the fixing mode of the support seat and the bearing seat to the base is not limited here, and can be set according to the needs.

[0091] In one embodiment, as Figure 3 , 4As shown in FIG. 5, two first bearing seats 410 can be arranged on the two sides of the shaft connecting the torsion shaft 505 and the first crank 403, and two second bearing seats 510 can be arranged on the two sides of the shaft connecting the torsion shaft 505 and the second crank 503. The first brake shaft 408 is connected to the first support seat 409. One side of the second end of the first control member 402 is fixedly connected to the first brake shaft 408 of the brake mechanism of the corresponding central control wheel assembly, and the other side can be fixedly connected to the base through the first support seat 409 to fix the first brake shaft 408 extending from the first positioning hole of the first control member 402, so as to fix the second end of the first control member 402 and the first brake shaft 408. Similarly, the second brake shaft 508 is connected to the second support seat 509. One side of the second end of the second control member 502 is fixedly connected to the second brake shaft 508 of the brake mechanism of the corresponding central control wheel assembly, and the other side can be fixedly connected to the base through the second support seat 509 to fix the second brake shaft 508 extending from the second positioning hole of the second control member 502, so as to fix the second end of the second control member 502 and the second brake shaft 508. In this way, the central brake system and the base are fixedly connected.

[0092] In one embodiment, the central brake system includes four central control wheel assemblies. Based on the structure shown in the above Figures 3-5 As shown in the structure shown in the above, when an external force is applied to one side of the bidirectional pedal 301, the bidirectional pedal 301 drives the first crank 403 to rotate around the first bearing seats 410 on the left and right sides, and then the first crank 403 drives the first transmission rod 401 to move left and right in parallel through the support shaft 407 fixed thereon. Since the first transmission rod 401 is rotatably connected to the two support shafts 405, and the two support shafts 405 are fixedly connected to the corresponding first control rods 402, when the first transmission rod 401 moves left and right in parallel, the first control rods 402 are driven to swing left and right. Since the first control rods 402 are rotatably connected to the first support seat 409, and the first support seat 409 is fixedly connected to the base, the first transmission rod 401 can only drive the two first control rods 402 to move in a circular motion around the first support seat 409 through the support shafts 405. Therefore, when an external force is applied to one side of the bidirectional pedal 301, the first control rods can move in a circular motion around the first support seat 409 under the action of the pedal 301.

[0093] One end of the torsion shaft 305 is fixedly connected to the first crank 403, and the other end is fixedly connected to the second crank 503. The torsion shaft 305 can transmit part of the torsion of the first crank 403 to the second crank 503, so as to drive the second crank 503 to rotate around the second bearing seats 510 on the left and right sides. The second crank 503 can finally drive the second control rod 502 to move in a circular motion around the support seat 509.

[0094] When external force is applied to the second crank 502, the second crank 502 will be forced to rotate around the two side second bearing seats 510, and then the second crank 502 drives the second transmission rod 501 to move left and right in parallel through the support shaft 507 fixed thereon; since the second transmission rod 501 is rotatably connected with the support shaft 505, and the support shaft 505 is fixedly connected with the second control rod 502, when the second transmission rod 501 moves left and right in parallel, it will further drive the second control rod 502 to swing left and right; since the second control rod 502 is rotatably connected with the support seat 509, and the support seat 509 is fixedly connected with the base, the second transmission rod 501 can only drive the second control rod 502 to make circular motion around the support seat 505 through the support shaft 505; therefore, when external force is applied to the second crank 502, the second control rod 502 will finally make circular motion around the support seat 505 under the action of the second crank 502.

[0095] The first transmission mechanism 400 and the second transmission mechanism 500 can both form parallelogram mechanisms, and according to the properties of parallelogram, the two first control rods 402 and the two second control rods 502 can form a parallelogram, and the angles turned by the first crank 403 and the second crank 502 are always equal, thus ensuring that the braking angles generated inside the four central control wheel assemblies are always consistent during the working process, and ensuring the reliability of self-locking.

[0096] Meanwhile, in order to save labor when operating, labor-saving mechanisms are designed in the first transmission mechanism 400 and the second transmission mechanism 500 by using the principle of lever; for example, between the first crank 403 and the first transmission rod 401, between the two first control rods 402 and the two second control rods 502 and the internal braking structures of the central control wheels 402 respectively; so that the user can use it more labor-saving.

[0097] Based on the above embodiment, in one embodiment, as Figure 6As shown, a structure schematic diagram of a central control wheel assembly 600 provided by the embodiment of the present application is shown, the central control wheel assembly 600 comprises a central control wheel fixing sleeve 601 and a central control wheel 602, the central control wheel 602 is fixedly arranged at a first end of the central control wheel fixing sleeve 601, and a second end of the central control wheel fixing sleeve 601 is fixedly arranged on the base; the central control wheel 602 is provided with a brake structure, and the brake structure is connected with the first brake shaft 408 or the second brake shaft 409. In this way, one side of the first control member 402 is fixed on the base through the first brake shaft 408 and the first support seat 409, and the other side is fixed on the base through the central control wheel fixing sleeve 601 in the central control wheel assembly 600; one side of the second control member 502 is fixed on the base through the second brake shaft 508 and the second support seat 509, and the other side is fixed on the base through the central control wheel fixing sleeve 601 in the central control wheel assembly 600. In this way, the force receiving positions of each first control member 402 and the first crank 403 in the first transmission mechanism 400 and each second control member 502 and the second crank 503 in the second transmission mechanism 500 are provided with support points supported on the base, so that the central brake system has good stability, and accordingly, the force required for operating the central brake system is small, and the purpose of saving force can be achieved, and in addition, the service life of the central brake system can be increased.

[0098] In one embodiment, the central control wheel assembly comprises a brake structure, when the internal structure is forced to rotate by an external structure, the central control wheel 602 will be self-locked, and when the same angle is reversed, the central control wheel 602 will be unlocked; therefore, the self-locking and unlocking of the central control wheel 602 can be realized by controlling the forward and reverse rotation of the internal structure of the central control wheel 602 through the external structure.

[0099] Based on the above structure schematic diagram, the embodiment of the present application provides a two-way pedal structure schematic diagram, as shown in Figure 7 As shown, the first surface of the two-way pedal 700 is provided with an anti-skid structure 701, and the first surface is the opposite surface of the second surface of the two-way pedal 700 connected with the first crank. In this way, the anti-skid structure 701 can prevent slipping when stepping, save effort, and improve human-computer interaction.

[0100] In one embodiment, a magnetic attraction structure 800 can also be arranged between the base and the two-way pedal 700 to further save the effort when stepping the two-way pedal 700 to brake or release the brake.

[0101] Based on the above structure schematic diagram, the embodiment of the present application provides a structure schematic diagram of a magnetic attraction structure 800, as shown in Figure 8As shown, the base is provided with a magnetic buffering assembly, which comprises a magnet fixing plate 801, a first magnet 802, a buffer pad 803 and a magnetic female element 804. The second surface of the bidirectional pedal is provided with a second magnet 805, which is arranged opposite to the magnetic buffering assembly.

[0102] The magnet fixing plate 801 is fixedly arranged on the base. The buffer pad 803 and the first magnet 802 are alternately arranged on the same plane and are fixed on the magnet fixing plate 801 through the magnetic female element 804.

[0103] When the bidirectional pedal is stepped on, the second magnet 805 and the first magnet 802 on the magnetic buffering assembly are attracted and contacted.

[0104] In an embodiment, the first magnet 802 and the buffer pad 803 can be fixed on the base through the magnetic female element 804 and the magnet fixing plate 801, and then the magnetic attraction with the second magnet 805 is generated when the bidirectional pedal is stepped on, so as to save the effort.

[0105] In an embodiment, the magnetic female element 804 and the magnet fixing plate 801 can be fixedly connected through screws. The magnet fixing plate 801 can be fixedly connected with the base through screw fixing connection.

[0106] In an embodiment, a magnetic structure 800 can be arranged on each of the first sub-pedal and the second sub-pedal of the bidirectional pedal, as shown. Figure 9 Therefore, when the first sub-pedal or the second sub-pedal is stepped on, the effort can be saved through the corresponding magnetic structure 800.

[0107] In an embodiment, when the first sub-pedal or the second sub-pedal of the bidirectional pedal rotates to the lowest point, the bidirectional pedal and the magnetic buffering assembly are contacted. In the contacting process, the bidirectional pedal will first contact the buffer pad 803 (the surface of the buffer pad 803 can be flush with the surface of the first magnet 802, or higher than the first magnet 802) on the magnetic buffering assembly. The buffer pad 803 can effectively reduce the noise in the contacting process. Secondly, when moving to the lowest point, the second magnet 805 fixed on the bidirectional pedal contacts the first magnet 802. Under the mutual attraction, the bidirectional pedal can be more reliably contacted with the magnetic buffering assembly. Therefore, in the use process, only the side of the bidirectional pedal that is lifted needs to be stepped on the corresponding side of the magnetic buffering assembly in the unlocking and self-locking processes. In the operation process, it is not necessary to separately distinguish which side belongs to the unlocking pedal and which side belongs to the self-locking pedal. In the stepping process, it is also not necessary to worry about whether the stepping is in place. Because only the stepping action is needed, there is no operation of resetting the pedal with the back of the foot. The human-computer interaction is better.

[0108] Based on the above-mentioned structural or partial structural schematic diagram of the central brake system and the related embodiments, the embodiments of the present application provide a medical device, which can include any of the above-mentioned central brake systems.

[0109] It should be noted that the shaft connection described above is a flexible rotating connection structure.

[0110] Those skilled in the art can understand that the above-mentioned central brake system does not constitute a limitation on the system, and can include more or fewer components, parts, assemblies than the diagram, or combine certain components, parts or assemblies. It can be understood that, on the basis of the diagram, the central brake system obtained by copying, deforming the structure based on the same concept, and the central brake system obtained by replacing the diagrammed partial structure with the commonly used structure in the art, should be within the protection scope of the present application.

Claims

1. A central brake system, characterized in that The application relates to a central control wheel assembly, a base, a main transmission mechanism and a bidirectional pedal, wherein the bidirectional pedal comprises a first sub-pedal and a second sub-pedal, and the first sub-pedal and the second sub-pedal have a set angle therebetween, and the set angle is less than 180 degrees. The power end of the main transmission mechanism is connected with the bidirectional pedal, and the main transmission mechanism and the bidirectional pedal are arranged on the two sides of the base respectively. The control end of the main transmission mechanism is connected with the plurality of central control wheel assemblies, and the central control wheel assembly is provided with a brake mechanism. When the first sub-pedal is stepped on, the bidirectional pedal provides power to the main transmission mechanism, and the brake mechanism of the plurality of central control wheel assemblies is controlled by the main transmission mechanism. When the second sub-pedal is stepped on, the bidirectional pedal provides power to the main transmission mechanism, and the brake mechanism of the plurality of central control wheel assemblies is controlled by the main transmission mechanism.

2. The system of claim 1, wherein, The main transmission mechanism comprises a first transmission mechanism, a second transmission mechanism, a first crank, a second crank and a torsion shaft. The first transmission mechanism and the second transmission mechanism are arranged on one side of the base, and the bidirectional pedal is arranged on the other side of the base. The control end of the first transmission mechanism is connected with at least one central control wheel assembly, the power end of the first transmission mechanism is connected with the first end of the first crank, the second end of the first crank penetrates through the base and is connected with the bidirectional pedal, a first crank shaft hole is arranged on the handle body of the first crank, and the first end of the torsion shaft is inserted into the first crank shaft hole to form fixed connection. The control end of the second transmission mechanism is connected with at least one central control wheel assembly, the power end of the second transmission mechanism is connected with the first end of the second crank, a second crank shaft hole is arranged on the second end of the second crank, and the second end of the torsion shaft is inserted into the second crank shaft hole to form fixed connection. When the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission mechanism through the first crank, controls the brake mechanism of at least one central control wheel assembly connected with the first transmission mechanism to brake or release, and provides power to the second transmission mechanism through the torsion shaft connected with the first crank and the second crank, and controls the brake mechanism of at least one central control wheel assembly connected with the second transmission mechanism to brake or release.

3. The system of claim 2, wherein, The first transmission mechanism comprises a first transmission rod and at least one first control member, and the second transmission mechanism comprises a second transmission rod and at least one second control member. The first end shaft of the first transmission rod is connected with the first end of the at least one first control member, the second end of the first control member is connected with the brake mechanism of the central control wheel assembly, and the first transmission rod is connected with the first end shaft of the first crank. The first end shaft of the second transmission rod is connected with the first end of the at least one second control member, the second end of the second control member is connected with the brake mechanism of the central control wheel assembly, and the second transmission rod is connected with the first end shaft of the second crank. Wherein, when the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission rod through the first crank, the first transmission rod drives the first end of the first control member to swing, and the second end of the first control member controls the brake or unbrake of the brake mechanism of the corresponding central control wheel assembly; and the torsion shaft connecting the first crank and the second crank provides power to the second transmission rod, the second transmission rod drives the first end of the second control member to swing, and the second end of the second control member controls the brake or unbrake of the brake mechanism of the corresponding central control wheel assembly.

4. The system of claim 3, wherein, The first transmission rod has a plurality of first rod holes, and the second transmission rod has a plurality of second rod holes; The first end of the first control member bifurcates into two first legs, and the distal end of the first leg has a first leg hole; a support shaft passes through the first leg hole and the corresponding first rod hole on the first transmission rod, and the first end of the first control member is connected with the first transmission rod in an axial manner; The first end of the first crank bifurcates into two first handles, and the distal end of the first handle has a first handle hole; a support shaft passes through the first handle hole and the corresponding first rod hole on the first transmission rod, and the first end of the first crank is connected with the first transmission rod in an axial manner; The first end of the second control member bifurcates into two second legs, and the distal end of the second leg has a second leg hole; a support shaft passes through the second leg hole and the corresponding second rod hole on the second transmission rod, and the first end of the second control member is connected with the second transmission rod in an axial manner; The first end of the second crank bifurcates into two second handles, and the distal end of the second handle has a second handle hole; a support shaft passes through the second handle hole and the corresponding second rod hole on the second transmission rod, and the first end of the second crank is connected with the second transmission rod in an axial manner.

5. The system of claim 3, wherein, The second end of the first control member has a first positioning hole, and a first brake shaft of the brake mechanism of the corresponding central control wheel assembly is clamped in the first positioning hole to fixedly connect the second end of the first control member with the first brake shaft; The second end of the second control member has a second positioning hole, and a second brake shaft of the brake mechanism of the corresponding central control wheel assembly is clamped in the second positioning hole to fixedly connect the second end of the second control member with the second brake shaft; Wherein, when the bidirectional pedal is stepped on, the bidirectional pedal provides power to the first transmission rod through the first crank, the first transmission rod drives the first end of the first control member to swing, and the second end of the first control member controls the brake or unbrake of the brake mechanism of the corresponding central control wheel assembly; and the torsion shaft connecting the first crank and the second crank provides power to the second transmission rod, the second transmission rod drives the first end of the second control member to swing, and the second end of the second control member controls the brake or unbrake of the brake mechanism of the corresponding central control wheel assembly.

6. The system of claim 5, wherein, The first brake shaft is connected with a first support seat shaft, the second brake shaft is connected with a second support seat shaft, and the first support seat and the second support seat are fixed on the base respectively. The first end of the torsion shaft is connected with a first bearing seat shaft, the second end of the torsion shaft is connected with a second bearing seat shaft, and the first bearing seat and the second bearing seat are fixed on the base respectively.

7. The system of any one of claims 2-6, wherein, The first surface of the bidirectional pedal is provided with an anti-skid structure, and the first surface is opposite to a second surface of the bidirectional pedal connected with the first crank.

8. The system of any one of claims 1-6, wherein, The base is provided with a magnetic attraction buffer assembly, the magnetic attraction buffer assembly comprises a magnet fixing plate, a first magnet, a buffer pad and a magnetic attraction female part, the second surface of the bidirectional pedal is provided with a second magnet, and the second magnet is arranged opposite to the magnetic attraction buffer assembly. The magnet fixing plate is fixed on the base, the buffer pad and the first magnet are arranged on the same plane, and the buffer pad and the first magnet are fixed on the magnet fixing plate through the magnetic attraction female part. When the bidirectional pedal is stepped on, the second magnet and the first magnet on the magnetic attraction buffer assembly are attracted and contacted.

9. The system of any one of claims 1-6, wherein, The central control wheel assembly comprises a central control wheel fixing sleeve and a central control wheel, the central control wheel is fixed at the first end of the central control wheel fixing sleeve, and the second end of the central control wheel fixing sleeve is fixed on the base; the central control wheel is provided with a brake structure, and the brake structure is connected with the first brake shaft or the second brake shaft.

10. A medical device, characterized by The medical device comprises the central brake system according to any one of claims 1 to 9.

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