CN211534468U - Manual steering and braking system and mobile equipment - Google Patents
Manual steering and braking system and mobile equipment Download PDFInfo
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- CN211534468U CN211534468U CN201922490177.5U CN201922490177U CN211534468U CN 211534468 U CN211534468 U CN 211534468U CN 201922490177 U CN201922490177 U CN 201922490177U CN 211534468 U CN211534468 U CN 211534468U
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Abstract
The embodiment of the utility model provides an in disclose a manual turn to and braking system and portable equipment. Wherein, the system includes: a handle member, comprising: a handle support; the handle is provided with a mounting end and a holding end, and the mounting end is mounted on the handle bracket through a rotating shaft, so that the handle can rotate upwards or downwards along a vertical plane around the axis of the rotating shaft; the traction braking and resetting component is arranged on the handle and the handle bracket in a matching way, can pull a braking wire to move when the handle rotates upwards along the vertical plane, and can carry out positioning locking and unlocking resetting on the current position; and one end of the steering transmission component is connected with the handle component and can transmit the steering motion of the handle driving the whole handle component along the horizontal plane to the wheels. The embodiment of the utility model provides an in technical scheme can simplify turning to and the braking structure of portable equipment.
Description
Technical Field
The utility model relates to a movable equipment field, especially a manual steering and braking system and portable equipment.
Background
An X-ray machine is a detection device widely applied to the medical field, and mainly utilizes X-rays to penetrate through a human body to irradiate on a flat panel detector (FD) for imaging according to different densities of tissue structures such as human muscles, bones and the like. The wheels are arranged at the bottom of the mobile X-ray machine such as a mobile C-arm X-ray machine, so that the X-ray machine can be conveniently transferred and is convenient for X-ray imaging for patients with inconvenient actions or patients with operation. In the case of a mobile X-ray machine, steering and braking problems are involved.
Most mobile X-ray machines currently employ separate manual steering and foot brakes. In addition, those skilled in the art are also working to find other steering and braking solutions.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a manual steering and braking system on one hand, and provides a mobile device on the other hand, so as to simplify the steering and braking structure of the mobile device, and further improve the control convenience of the mobile device.
The embodiment of the utility model provides an in provide a manual turn to and braking system, include:
a handle member, comprising: a handle support; the handle is provided with a mounting end and a holding end, and the mounting end is mounted on the handle bracket through a rotating shaft, so that the handle can rotate upwards or downwards along a vertical plane around the axis of the rotating shaft; the traction braking and resetting component is arranged on the handle and the handle bracket in a matching way, can pull a braking wire to move when the handle rotates upwards along the vertical plane, and can carry out positioning locking and unlocking resetting on the current position; the brake wire is connected with the wheel brake component, and the wheel brake component performs brake locking or unlocking reset on the corresponding wheel by pulling and resetting the brake wire;
and one end of the steering transmission component is connected with the handle component, and can transmit the steering motion of the handle component which drives the whole handle component along the horizontal plane to the wheel carrier of the wheel.
In one embodiment, the pull brake and return assembly comprises: a positioning ratchet wheel fixed on the handle bracket; a reel fixedly mounted at the mounting end of the handle, capable of rotating around the axis of the rotating shaft along with the handle, and connected with a brake wire at a set position; a ratchet block which can be meshed with the ratchet teeth of the positioning ratchet wheel; the connecting rod mechanism is arranged on the handle through at least one connecting shaft, one end of the connecting rod mechanism is fixedly connected with the ratchet block, and the other end of the connecting rod mechanism is provided with a pressing block; one end of the tension spring is connected with a connecting shaft of the connecting rod mechanism, and the other end of the tension spring is connected with one side of the handle close to the holding end and used for applying a downward force to the ratchet block; when the handle rotates upwards along a vertical plane, the reel and the connecting rod mechanism are driven to move, so that the brake wire is wound on the reel, the ratchet block moves along the outer edge of the positioning ratchet wheel, and when the handle stops rotating upwards, the ratchet block is clamped on one ratchet of the positioning ratchet wheel, and positioning and locking are realized; when the pressing block is pressed down, the connecting rod mechanism moves to drive the ratchet block to be separated from the ratchet of the positioning ratchet wheel, so that the handle can rotate downwards along the vertical plane to drive the reel and the connecting rod mechanism to move, and when the handle is reset, the pressing block is loosened to reset the brake wire and the ratchet block.
In one embodiment, the mounting end of the handle has a U-shaped notch; the reel is accommodated in the U-shaped notch and is of a fan-shaped pancake structure; the brake cable extends out of the U-shaped notch from top to bottom, the upper end of the brake cable is provided with a limiting block, and the limiting block can be clamped in a limiting groove of the handle and is positioned on one fan-shaped side end face of the reel when being clamped in the limiting groove.
In one embodiment, a first mounting hole and a second mounting hole which penetrate left and right are formed between the mounting end and the holding end of the handle; the link mechanism includes: a first lever mechanism rotatably mounted on the handle via a first connecting shaft passing through the first mounting hole, and having an axis of the first connecting shaft as a fulcrum; the second lever mechanism is rotatably arranged on the handle through a second connecting shaft passing through the second mounting hole and takes the shaft center of the second connecting shaft as a fulcrum; the middle connecting rod is connected between the first lever mechanism and the second lever mechanism through a third connecting shaft and a fourth connecting shaft respectively, the non-middle connecting rod connecting end of the first lever mechanism is connected with the pressing block, and the non-middle connecting rod connecting end of the second lever mechanism is connected with the ratchet block; one end of the tensioning spring is connected to the third connecting shaft, and the other end of the tensioning spring is connected to the fixed shaft on one side, close to the holding end, of the handle.
In one embodiment, a rectangular hole is formed between the mounting end and the holding end of the handle, and the handle is provided with a receiving groove at one side close to the holding end; the middle connecting rod is a second connecting rod; the first lever mechanism includes: two L-shaped first links; the two L-shaped first connecting rods are positioned at two sides of the handle, one end of each L-shaped first connecting rod, which is close to the upper part of the handle, is fixedly connected with the pressing block through a fifth connecting shaft positioned in the area of the accommodating groove, and the connected pressing block is positioned in the area of the accommodating groove; one end of each L-shaped first connecting rod, which is close to the lower part of the handle, is rotatably connected with one end of a second connecting rod which penetrates through the rectangular hole of the handle through the third connecting shaft positioned below the handle; the L-shaped bends of the two L-shaped first connecting rods are rotatably arranged on the handle through the first connecting shafts penetrating through the first mounting holes; the second lever mechanism includes: one end of the third connecting rod is rotatably connected with the other end of the second connecting rod through the fourth connecting shaft, the other end of the third connecting rod is fixedly arranged on the second connecting shaft which rotatably penetrates through the second mounting hole, and the ratchet block is fixedly arranged at one end of the second connecting shaft.
In one embodiment, a stop is disposed on the positioning ratchet for limiting the braking stroke of the handle.
In one embodiment, further comprising a wheel brake assembly comprising: the traction end is connected with the brake wire; the wheel braking end pressure lever is matched with the wheel; and the brake lever component is respectively connected with the traction end and the wheel brake end pressure lever, and can apply downward force to the wheel brake end pressure lever when the brake wire pulls the traction end, so that the wheel brake end pressure lever presses the corresponding wheel, and the wheel is braked by increasing the friction force between the wheel brake end pressure lever and the wheel.
In one embodiment, the steering transmission member includes: one end of the first vertical transmission component is fixedly connected with the handle component and can transmit the steering control motion of the handle driving the whole handle component from a first horizontal plane to a second horizontal plane; the first horizontal transmission component is matched and installed with the first vertical transmission component and is used for transmitting the steering control movement of the handle driving the whole handle component from a first position to a second position on a second horizontal plane; the second vertical transmission component is matched with the first horizontal transmission component and can transmit the steering control motion of the handle driving the whole handle component to a third horizontal plane from a second horizontal plane; and the second horizontal transmission component is matched with the second vertical transmission component and is used for transmitting the steering control motion of the handle driving the whole handle component to the wheel carrier of the wheel from the second position of the third horizontal plane.
In one embodiment, the first vertical transmission member comprises: the upper end of the first vertical transmission shaft is fixedly connected with the bottom of the handle bracket; and the bearing is arranged in a bearing seat and is matched with the first vertical transmission shaft, so that the handle drives the whole handle part to rotate around the axis of the first vertical transmission shaft to perform steering control movement.
In one embodiment, the first horizontal transmission member includes: the first driving chain wheel is fixedly arranged at the lower end of the first vertical transmission shaft and is used for synchronously rotating with the first vertical transmission shaft and transmitting the steering control motion; a first driven sprocket located in the same horizontal plane as the first drive sprocket; and the first transmission chain is matched with the first driving chain wheel and the first driven chain wheel for installation and is used for synchronously transmitting the steering control motion of the first driving chain wheel to the first driven chain wheel.
In one embodiment, the second vertical transmission member comprises: and the upper end of the second vertical transmission shaft is fixedly connected with the first driven chain wheel and is used for synchronously rotating with the first driven chain wheel to transmit the steering control movement.
In one embodiment, the second horizontal transmission member includes: a second driving sprocket fixedly mounted to a lower end of the second vertical transmission shaft for rotating synchronously with the second vertical transmission shaft to transmit the steering control motion; the number of the second driven chain wheels is consistent with that of the wheels, and each second driven chain wheel is fixedly connected with one wheel carrier; a plurality of tension guide sprockets; and the second transmission chain is matched with the second driving chain wheel, the second driven chain wheel and the tensioning guide chain wheel, and is used for synchronously transmitting the steering control motion of the second driving chain wheel to the second driven chain wheel so as to control the corresponding wheel to steer.
The embodiment of the utility model provides a portable equipment that puts forward, including as in any one of the above-mentioned embodiments manual turn to and braking system.
In one embodiment, the mobile apparatus comprises a mobile C-arm X-ray machine.
Can find out from above-mentioned scheme, because the utility model discloses in the inside control that realizes handle braking direction of handle parts, and whole handle parts realizes the control that the handle turned to under the drive of handle, has consequently realized manual integrative turning to and brake control.
The brake is carried out by adopting a mode that the handle rotates upwards to draw the brake wire, and meanwhile, the ratchet wheel and the ratchet block are locked in a meshed mode, and the linkage lever mechanism is used for resetting and the like, so that the brake accuracy and reliability are ensured.
In addition, through set up the spacing groove on the handle to in the one end setting of brake line with spacing groove matched with stopper, set up fan-shaped pie's reel simultaneously at the installation end of handle, except can driving brake line upward movement and winding on the reel by the reel, the spacing groove on the handle also can drive the stopper upwards rotatory together, and spacing groove and reel drive brake line jointly and upwards pull promptly, have guaranteed the promotion stroke of brake line.
Additionally, the utility model discloses in through setting up to the two-stage transmission with steering transmission system, can reduce every grade of driven transmission distance to the deformation that maximum reduction transmission system caused transmission element because of gravity or moment of torsion etc. has guaranteed steering control's precision.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:
fig. 1 and fig. 2 are schematic structural diagrams of a manual steering and braking system according to an embodiment of the present invention. Wherein fig. 1 is a schematic view with wheels and fig. 2 is a schematic view without wheels.
Fig. 3 to 7 are schematic structural views of a handle part and a part of a steering transmission part in the system shown in fig. 1, wherein fig. 3 is a perspective structural view with a handle cover removed, fig. 4 is an exploded view of the structure shown in fig. 3, fig. 5 is a schematic structural view with a handle bracket removed in fig. 3, fig. 6 is a schematic structural view of a handle in fig. 3, and fig. 7 is a schematic partial structural view of a pulling brake and return part in fig. 3.
Wherein the reference numerals are as follows:
Detailed Description
The embodiment of the utility model provides an in, in order to simplify turning to and the braking structure of portable equipment, further improve the control convenience of portable equipment, consider to adopt manual integrative turning to and braking system, except that manual control turns to, still manual control braking promptly.
In order to achieve a manual integrated steering and braking system, it is considered that the manually operated handle preferably has two degrees of freedom in one direction, i.e. one for steering control and the other for braking control. In order to realize the degree of freedom of these two directions, and not disturbed each other, the embodiment of the utility model provides an in, consider the control that realizes handle braking direction inside the handle part, and whole handle part realizes the control that the handle turned to under the drive of handle. For example, in particular implementations, the handle assembly may include a handle bracket, a handle, and a pull-stop and return assembly. The mounting end of the handle can be mounted on the handle bracket through a rotating shaft and can rotate around the axis of the rotating shaft in the forward direction and the reverse direction along a first plane; the traction braking and resetting component is arranged on the handle and the handle bracket in a matching way, and can pull a braking wire to move when the handle rotates forwards along a first plane, and can perform positioning locking and unlocking resetting on the current position; the brake wire is connected with a wheel brake component, and the wheel brake component performs brake locking or unlocking reset on the corresponding wheel by pulling and resetting the brake wire. Meanwhile, one end of the steering transmission component is connected with the handle component, so that the steering motion of the handle component which drives the whole handle component along a second plane can be transmitted to the wheel carrier of the wheel; wherein the second plane is mutually orthogonal to the first plane.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.
Fig. 1 and fig. 2 are schematic structural diagrams of a manual steering and braking system according to an embodiment of the present invention. Wherein fig. 1 is a schematic view with wheels and fig. 2 is a schematic view without wheels. The manual steering and braking system in the embodiment of the present invention will be described in detail in this specification based mainly on the orientation shown in fig. 1, and unless otherwise specified, the orientations such as up, down, left, right, front, rear, vertical, and horizontal, which are referred to in this specification for convenience of description, are all relative to the viewing angle shown in fig. 1.
Fig. 3 to 7 are schematic structural views of a handle part and a part of a steering transmission part in the system shown in fig. 1, wherein fig. 3 is a perspective structural view with a handle cover removed, fig. 4 is an exploded view of the structure shown in fig. 3, fig. 5 is a schematic structural view with a handle bracket removed in fig. 3, fig. 6 is a schematic structural view of a handle in fig. 3, and fig. 7 is a schematic partial structural view of a pulling brake and return part in fig. 3.
With reference to fig. 1 to 7, it can be seen that the manual steering and braking system in the embodiment of the present invention includes: a handle part 1, a wheel brake part 2 and a steering transmission part 3.
Wherein the handle part 1 comprises: a handle support 11, a handle 12, a pull brake and reset device 13 and a cover 14.
The handle holder 11 has a cavity 111 (see fig. 4) for accommodating the handle 12, and a first through hole 112 and a second through hole 113 penetrating left and right are formed in a wall of the cavity. The first through hole 112 is used for installing the handle 12 through the rotating shaft 15, the second through hole 113 is used for installing a limiting shaft 16, and the limiting shaft 16 can be used for limiting the downward movement stroke of the handle 12.
The handle 12 has a mounting end 121 and a holding end 122, and the mounting end 121 is pivotally mounted to the handle holder 11 via a rotating shaft 15 such that the handle 12 can be rotated upward and downward along a vertical plane about the axis of the rotating shaft 15. In order to reduce the weight of the handle 12 and to enhance the firmness of the handle 12 with a surface plastic material (not shown), a plurality of fabrication holes 1221 (see fig. 5) may be formed in the grip end 122.
The pull brake and reset part 13 is installed on the handle 12 and the handle bracket 11, and can pull a brake wire assembly 131 (see fig. 1 and 2) to move when the handle 12 rotates upwards along the vertical plane, and can perform positioning locking and unlocking reset on the current position. The brake wire assembly 131 is connected to the wheel brake assembly 2, and the wheel brake assembly 2 performs brake locking or unlocking reset of the corresponding wheel 4 by pulling and resetting the brake wire assembly 131.
One end of the steering transmission component 3 is connected with the handle component 1, so that the steering motion of the whole handle component 1 driven by the handle 12 along the horizontal plane can be transmitted to the wheel carrier 41 of the wheel 4, and the wheel carrier 41 drives the whole wheel including the wheel 4 to steer.
In particular, the pulling brake and reset device 13 can be implemented in various ways as long as the above-mentioned functions are realized. One specific implementation form is given in the embodiment of the invention as an exemplary illustration. As shown in fig. 1 to 6, the pull brake and return member 13 in the present embodiment may include: a brake wire assembly 131, a positioning ratchet 132, a reel 133, a ratchet block 134, a link mechanism 135, a pressing block 136 and a tension spring 137.
Wherein one end of the brake wire assembly 131 is connected to a set position of the reel 133, and the other end is connected to the pulling end 21 of the wheel brake part 2. The brake line assembly 131 may include only one brake line, one end of which is connected to a set position of the reel 133, and the other end of which is connected to the pulling end 21 of the wheel brake unit 2. Alternatively, the brake wire assembly 131 may also include, as shown in fig. 1 and 2: a stop block 1311, two sections of brake wire 1312, 1313, a first transfer end 1314 and a second transfer end 1315. Wherein, one section of the brake line 1312 is positioned at the handle 12 side, one end of the brake line is connected with the limit block 1311, and the other end is connected with the first transition end 1314; the other segment of brake wire 1313 is located on the wheel brake part 132 side, and has one end connected to the second switching end 1315 and the other end connected to the wheel brake part 2. The brake wire in brake wire assembly 131 is typically a metal wire, such as a steel wire. The metal wire may be provided with a protective sheath such as plastic, rubber, or a threaded pipe.
The wheel braking unit 2 may have various forms of implementation, and a specific implementation thereof is given in the embodiment of the present invention as an exemplary illustration. As shown in fig. 1 and 2, the wheel brake part 2 may include: a pulling end 21, a wheel brake end strut 22 and a brake lever assembly 23 connected to the pulling end 21 and the wheel brake end strut 22, respectively. Wherein the pulling end 21 is mounted on the pulling end support 24 and is connected to the brake wire assembly 131. The wheel brake end pressure lever 22 is installed to correspond to the wheel 4, and is capable of pressing the corresponding wheel 4 to increase a frictional force with the wheel 4 when the brake wire 1313 of the brake wire assembly 131 pulls the brake lever member 23 through the traction end 21, thereby braking the wheel 4. The brake lever member 23 is capable of applying a downward force to the wheel brake end strut 22 when the brake wire assembly 131 pulls the pulling end 21, such that the wheel brake end strut 22 presses the corresponding wheel 4 to brake the wheel 4 with increased friction.
The positioning ratchet 132 is fixed to the handle holder 11. And to prevent the handle 12 from rotating upward beyond the range, a stop 1321 is provided on the positioning ratchet 132 to limit the braking stroke of the handle 12.
The reel 133 is fixedly mounted on the mounting end 121 of the handle 12 and is rotatable with the handle 12 about the rotary shaft 15 fixed to the handle bracket 11 and is set to be connected to the brake wire in the brake wire assembly 131. In other embodiments, the handle 12 and the reel 133 may both be fixedly mounted to the shaft 15, such as by interference fit with the shaft 15, while the shaft 15 may be rotatably mounted to the handle bracket 11, such as by the shaft 15 being mounted to bearings mounted to the handle bracket 11. That is, as the handle 12 rotates upward about the axis of the rotating shaft 15, the handle 12 simultaneously rotates the reel 133 upward, which simultaneously lifts the brake wire in the brake wire assembly 131 upward and simultaneously winds the reel 133. In particular implementations, the diameter of the reel 133 may be at least 40 times the diameter of the brake line 1312.
In particular, the set position of the reel 133 can be connected to the brake line 1312 in various ways. For example, one end of the brake line 1312 may be fixed to a set position of the reel 133, and the brake line 1312 may be fixed to the fixing post or hole by, for example, gluing or riveting, or providing the reel 133 with the fixing post or hole and tightening the brake line 1312 to the fixing post or hole. In addition, another implementation manner is also provided in the embodiment. As shown in fig. 3 to 5, the mounting end 121 of the handle 12 has a U-shaped notch 123, and a limiting groove 124 is formed on the upper end surface of the handle 12 on the side of the U-shaped notch 123 far from the mounting end 121. The reels 133 are accommodated in the U-shaped notches 123, and the reels 133 have a fan-shaped structure having a certain thickness, i.e., a fan-shaped pancake structure. The stopper 1312 extends from the top to the bottom from the U-shaped notch 123, and the stopper 1311 is provided at the upper end of the stopper 1312, and the stopper 1311 can be engaged with the stopper groove 124 of the handle 12 and is located on one of the fan-shaped side end surfaces of the reel 133 when engaged with the stopper groove 124. Thus, when the reel 133 is turned upwards by the handle 12, the fan-shaped end surface of the reel 133 contacting with the stopper 1311 can drive the stopper 1311 to turn upwards together, and the brake wire 1312 is wound upwards on the cambered surface of the reel 133, so that the stopper 1311 is tightly held in the stopper groove 124 by the tension of the brake wire in both the braking state and the non-braking state. The tension of the brake wire comes from a compression spring on the brake wire assembly, not shown. In other embodiments, the reel 133 may be located on one side of the mounting end 121 of the handle 12, and the mounting end 121 of the handle 12 may also be free of the U-shaped notch 122.
The ratchet block 134 is engageable with the ratchet teeth of the positioning ratchet 132.
The link mechanism 135 is mounted on the handle 12 through at least one connecting shaft, and one end of the link mechanism 135 is fixedly connected with the ratchet block 134 and the other end is provided with a pressing block 136.
In this embodiment, the tension springs 137 may be two, and one end of each tension spring 137 is connected to one connecting shaft of the link mechanism 135, and the other end is connected to the handle 12, for applying a downward force to the ratchet block 134, so that the ratchet block 134 is pressed against the corresponding ratchet of the positioning ratchet 132.
When the handle 12 rotates upwards around the axis of the rotating shaft 15, the reel 133 and the link mechanism 135 are driven to move, so that the brake wire 1312 is wound on the reel 133, the ratchet block 134 moves along the outer edge of the positioning ratchet wheel 132, and when the handle 12 stops rotating upwards, the ratchet block 134 is clamped on one ratchet of the positioning ratchet wheel 132, so that positioning locking is realized; when the pressing block 136 is pressed, the link mechanism 135 moves to drive the ratchet block 134 to disengage from the ratchet teeth of the positioning ratchet 132, so that the handle 12 can rotate downwards around the axis of the rotating shaft 15 to drive the reel 133 and the link mechanism 135 to move, when the position of the handle 12 is reset, namely the position of the limiting shaft 16 is reached, the pressing block 136 is released, and the brake wire 1312 and the ratchet block 134 are reset.
In particular, the linkage 135 may be implemented in a variety of ways. Only one of which is shown in fig. 7. As shown in fig. 4 and 7 in conjunction, the link mechanism includes: two first links 1351, a second link 1352, a third link 1353, a first connecting shaft 1354, a second connecting shaft 1355, a third connecting shaft 1356, a fourth connecting shaft 1357, a fifth connecting shaft 1358. Correspondingly, the handle 12 further has a rectangular hole 125 penetrating up and down between the mounting end 121 and the holding end 122, and two round holes penetrating left and right, i.e., a first mounting hole 126 and a second mounting hole 127, perpendicular to the rectangular hole 125 and intersecting the rectangular hole 125. In addition, handle 12 has a receiving slot 128 on a side adjacent to gripping end 122.
Wherein, the two first connecting rods 1351 are L-shaped, and are located at two sides of the handle 12, one end of the connecting rod near the upper side of the handle 12 is fixedly connected with the pressing block 136 through a fifth connecting shaft 1358 located in the area of the receiving groove 128 of the handle 12, and the connected pressing block 136 is located in the area of the receiving groove 128, and the pressing block 136 has a stroke area pressed downwards. One end near the lower side of the handle 12 is rotatably connected to the lower end of the second link 1352 passing through the rectangular hole 124 of the handle 12 by a third connecting shaft 1356 located below the handle 12. In addition, the L-shaped turns of the two first links 1351 are rotatably mounted to the handle 12 by first connecting shafts 1354 passing through the first mounting holes 126. That is, the two first links 1351 form a single lever mechanism, which is referred to herein as a first lever mechanism, with the axial center of the first link 1354 at the L-turn as a fulcrum.
The upper end of the second link 1352 has a gap for receiving an end, i.e., an upper end in the drawing, of the third link 1353 and is rotatably connected to the upper end of the third link 1353 by a fourth connecting shaft 1357, the other end of the third link 1353 is fixedly mounted on the second connecting shaft 1355 rotatably passing through the second mounting hole 127, and the ratchet block 134 is fixedly mounted on an end of the second connecting shaft 1355. That is, the fixed connection of the third connecting rod 1353, the second connecting shaft 1355 and the ratchet block 134 together form a lever mechanism with the axis of the second connecting shaft 1355 as a fulcrum, which is referred to as a second lever mechanism here.
The fixed end 13531 of the third connecting rod 1353 connected to the second connecting shaft 1355 in this embodiment has a rigid notch 13532 matching with the diameter of the second connecting shaft 1355, so as to snap the second connecting shaft 1355 into the rigid notch 13532 and press the second connecting shaft 1355 from the screw hole on the side wall of the fixed end 13531 by a screwing screw 1359, thereby realizing the fixed connection of the third connecting rod 1353 to the second connecting shaft 1355.
It can be seen that when the pressing block 136 presses downward, the other end of the first lever mechanism tilts upward while pulling the second lever mechanism to rotate about the axis of the second connecting shaft 1355, and simultaneously the ratchet block 134 fixed to one end of the second connecting shaft 1355 rotates in the same direction, thereby disengaging the corresponding ratchet teeth on the positioning ratchet 132.
One end of the tension spring 137 is connected to the third connecting shaft 1356, and the other end is connected to a fixed shaft 129 of the handle 12 near the holding end 122 for applying a downward force to the ratchet block 134 to keep the ratchet block 134 in a reset state or to press the corresponding ratchet on the positioning ratchet 132 when the positioning is locked.
As can be seen, the link mechanism in the present embodiment may include: the first lever mechanism, the second lever mechanism and the middle connecting rod. The first lever mechanism is rotatably mounted on the handle 12 by a first connecting shaft 1354 passing through the first mounting hole 126, and the first lever mechanism is supported by an axial center of the first connecting shaft 1354. The second lever mechanism is rotatably mounted on the handle 12 via a second connecting shaft 1355 passing through the second mounting hole 127, and takes the axial center of the second connecting shaft 1355 as a fulcrum. An intermediate link, i.e., a second link 1352, is connected between the first and second lever mechanisms through a third and fourth connecting shafts 1356 and 1357, respectively, and a non-intermediate link connection end of the first lever mechanism is connected to the pressing block 136, and a non-intermediate link connection end of the second lever mechanism is connected to the ratchet block 134.
In addition, in other embodiments, the first lever mechanism and the second lever mechanism may have other structural implementations, and are not limited herein.
The cover 14 is fixedly installed on the handle bracket 11, and is opened with an opening 141 for the handle 12 to move up/down along a vertical plane.
The embodiment of the present invention provides a steering transmission member 3 that can be realized in various forms. Only one of which is given in this embodiment. As shown in fig. 1 and 2, the steering transmission member 3 may include: a first vertical transmission member 31, a first horizontal transmission member 32, a second vertical transmission member 33, and a second horizontal transmission member 34.
Wherein, one end of the first vertical transmission component 31 is fixedly connected with the handle component 1, and the handle 12 can drive the steering control motion of the whole handle component 1 to be transmitted from the first horizontal plane to the second horizontal plane, namely, from the horizontal plane (namely, the first horizontal plane) where the handle is located to the horizontal plane (namely, the second horizontal plane) corresponding to the lower end of the first vertical transmission component 31, corresponding to the embodiment shown in fig. 1 and 2, the second horizontal plane is the horizontal plane where the first horizontal transmission component 32 (namely, the chain transmission component) is located. In a specific implementation, the first vertical transmission component 31 may be a shaft transmission component, a belt transmission component, a chain transmission component, or the like. For example, fig. 1 and 2 show a shaft transmission component comprising: a first vertical drive shaft 311 and bearings 312.
Wherein, the upper end of the first vertical transmission shaft 311 is fixedly connected with the bottom of the handle bracket 11. In this embodiment, as shown in fig. 5, the first vertical transmission shaft 311 is a hollow structure, and a through hole (not shown) is formed at a position of the bottom of the handle holder 11 corresponding to the first vertical transmission shaft 311, and the brake wire 1312 can penetrate through the first vertical transmission shaft 311 from top to bottom.
And a bearing 312 installed in a bearing seat 313 and installed in cooperation with the first vertical transmission shaft 311, so that the handle 12 drives the entire handle part 1 to rotate around the axis of the first vertical transmission shaft 311 for performing steering control movement.
The first horizontal transmission member 32 is installed in cooperation with the first vertical transmission member 31, and is used for transmitting the steering control movement of the handle 12 driving the whole handle member 1 from the first position to the second position on the second horizontal plane, which corresponds to the embodiment shown in fig. 1 and 2, i.e. from the position (i.e. the first position) where the first driving sprocket 321 is located to the position (i.e. the second position) where the first driven sprocket 322 is located. In particular, the first horizontal transmission member 32 may be a belt transmission member, a chain transmission member, or a shaft transmission member. For example, a chain drive component is shown in fig. 1 and 2, including a first drive sprocket 321, a first driven sprocket 322, and a first drive chain 323.
The first driving sprocket 321 is fixedly installed at the lower end of the first vertical transmission shaft 311, and is configured to rotate synchronously with the first vertical transmission shaft 311 to transmit the steering control motion.
The first driven sprocket 322 and the first driving sprocket 321 are located in the same horizontal plane.
The first transmission chain 323 is cooperatively mounted with the first driving sprocket 321 and the first driven sprocket 322, and is used for synchronously transmitting the steering control motion of the first driving sprocket 321 to the first driven sprocket 322.
The second vertical transmission part 33 is installed in cooperation with the first horizontal transmission part 32, and can transmit the steering control movement of the handle 12 driving the whole handle part 1 from the second horizontal plane to the third horizontal plane, i.e. from the horizontal plane (i.e. the second horizontal plane) where the first horizontal transmission part 32 is located to the horizontal plane (i.e. the third horizontal plane) where the second horizontal transmission part 34 is located. In a specific implementation, the second vertical transmission component 33 may be a shaft transmission component, a belt transmission component, a chain transmission component, or the like. For example, fig. 1 and 2 show a shaft transmission component comprising: a second vertical transmission shaft 331.
The upper end of the second vertical transmission shaft 331 is fixedly connected with the first driven sprocket 322, and is configured to rotate synchronously with the first driven sprocket 322 to transmit the steering control motion.
The second horizontal transmission component 34 and the second vertical transmission component 33 are installed in a matching way, and are used for transmitting the steering control movement of the handle 12 driving the whole handle component 1 from the second position of the third horizontal plane to the third position, namely, to the wheel carrier 41 of the wheel 4, so that the wheel carrier 41 performs synchronous movement. Corresponding to the embodiment shown in fig. 1 and 2, i.e., from the position where the second driving sprocket 341 is located (i.e., the second position) to the position where the second driven sprocket 342 is located (i.e., the third position), i.e., the position where the wheel 4 is located. In particular, the second horizontal transmission member 34 may be a belt transmission member, a chain transmission member, or a shaft transmission member. For example, fig. 1 and 2 show a chain drive component comprising a second drive sprocket 341, a number of second driven sprockets 342 corresponding to the number of wheels 4 (two shown), tension guide sprockets 343 and second drive chains 344.
The second driving sprocket 341 is fixedly installed at the lower end of the second vertical transmission shaft 331, and is configured to rotate synchronously with the second vertical transmission shaft 331 to transmit the steering control motion.
Each second driven sprocket 342 is fixedly connected to one wheel carrier 41.
The second transmission chain 344 is cooperatively installed with the second driving sprocket 341, the second driven sprocket 342, and the tension guide sprocket 343, and is used to synchronously transmit the steering control motion of the second driving sprocket 341 to the second driven sprocket 342, so as to control the corresponding wheel 4 to steer.
Furthermore, the embodiment of the present invention further provides a mobile device, which may include the manual steering and braking system as described in any of the above embodiments.
Wherein, the mobile equipment can comprise a mobile C-arm X-ray machine and the like.
Can find out from above-mentioned scheme, because the utility model discloses in the inside control that realizes handle braking direction of handle parts, and whole handle parts realizes the control that the handle turned to under the drive of handle, has consequently realized manual integrative turning to and brake control.
The brake is carried out by adopting a mode that the handle rotates upwards to draw the brake wire, and meanwhile, the ratchet wheel and the ratchet block are locked in a meshed mode, and the linkage lever mechanism is used for resetting and the like, so that the brake accuracy and reliability are ensured.
In addition, through set up the spacing groove on the handle to in the one end setting of brake line with spacing groove matched with stopper, set up fan-shaped pie's reel simultaneously at the installation end of handle, except can driving brake line upward movement and winding on the reel by the reel, the spacing groove on the handle also can drive the stopper upwards rotatory together, and spacing groove and reel drive brake line jointly and upwards pull promptly, have guaranteed the promotion stroke of brake line.
Additionally, the utility model discloses in through setting up to the two-stage transmission with steering transmission system, can reduce every grade of driven transmission distance to the deformation that maximum reduction transmission system caused transmission element because of gravity or moment of torsion etc. has guaranteed steering control's precision.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A manual steering and braking system, comprising:
a handle member (1) comprising:
a handle support (11);
a handle (12) having a mounting end (121) and a holding end (122), the mounting end (121) being mounted on the handle bracket (11) via a shaft (15) such that the handle (12) can rotate up or down along a vertical plane about the axis of the shaft (15);
a pull brake and reset part (13) which is installed on the handle (12) and the handle bracket (11) in a matching way, can pull a brake wire (1312, 1313) to move when the handle (12) rotates upwards along the vertical plane, and can carry out positioning locking and unlocking reset on the current position; the brake lines (1312, 1313) are connected to a wheel brake assembly (2), and the wheel brake assembly (2) is caused to brake lock or unlock the corresponding wheel (4) by pulling and resetting the brake lines (1312, 1313);
and one end of the steering transmission component (3) is connected with the handle component (1) and can transmit the steering motion of the handle (12) driving the whole handle component (1) along the horizontal plane to the wheel carrier of the wheel (4).
2. Manual steering and braking system according to claim 1, characterized in that said pull-braking and return means (13) comprise:
a positioning ratchet (132) fixed to the handle holder (11);
a reel (133) fixedly mounted on the mounting end (121) of the handle (12), capable of rotating around the axis of the rotating shaft (15) together with the handle (12), and connected with a brake wire (1312) at a set position;
a ratchet block (134) engageable with the ratchet teeth of the positioning ratchet (132);
the connecting rod mechanism (135) is arranged on the handle (12) through at least one connecting shaft, one end of the connecting rod mechanism (135) is fixedly connected with the ratchet block (134), and the other end of the connecting rod mechanism is provided with a pressing block (136); and
a tension spring (137) having one end connected to a connecting shaft of the link mechanism (135) and the other end connected to a side of the handle (12) near the holding end (122) for applying a downward force to the ratchet block (134);
when the handle (12) rotates upwards along a vertical plane, the reel (133) and the link mechanism (135) are driven to move, so that the brake line (1312) is wound on the reel (133), the ratchet block (134) moves along the outer edge of the positioning ratchet wheel (132), and when the handle (12) stops rotating upwards, the ratchet block (134) is clamped on one ratchet of the positioning ratchet wheel (132) to realize positioning and locking; when the pressing block (136) is pressed down, the link mechanism (135) moves to drive the ratchet block (134) to be disengaged from the ratchet teeth of the positioning ratchet wheel (132), the handle (12) can rotate downwards along the vertical plane to drive the reel (133) and the link mechanism (135) to move, when the handle (12) is reset, the pressing block (136) is released, and the brake line (1312) and the ratchet block (134) are reset.
3. The manual steering and braking system according to claim 2, wherein the mounting end (121) of the handle (12) has a U-shaped notch (123);
the reel (133) is accommodated in the U-shaped notch (123), and the reel (133) is of a fan-shaped pancake structure;
the brake cable (1312) extends out of the U-shaped notch (123) from top to bottom, the upper end of the brake cable (1312) is provided with a limiting block (1311), and the limiting block (1311) can be clamped in a limiting groove (124) of the handle (12) and is located on one fan-shaped side end face of the reel (133) when being clamped in the limiting groove (124).
4. The manual steering and braking system according to claim 2, wherein the mounting end (121) and a holding end (122) of the handle (12) have two first mounting holes (126) and second mounting holes (127) extending therethrough from left to right;
the link mechanism (135) includes: a first lever mechanism rotatably mounted to the handle (12) by a first connecting shaft (1354) passing through the first mounting hole (126) and having an axial center of the first connecting shaft (1354) as a fulcrum;
a second lever mechanism rotatably mounted on the handle (12) via a second connecting shaft (1355) passing through the second mounting hole (127) and having an axial center of the second connecting shaft (1355) as a fulcrum; and
an intermediate connecting rod is connected between the first lever mechanism and the second lever mechanism through a third connecting shaft (1356) and a fourth connecting shaft (1357), the non-intermediate connecting rod connecting end of the first lever mechanism is connected with the pressing block (136), and the non-intermediate connecting rod connecting end of the second lever mechanism is connected with the ratchet block (134);
one end of the tension spring (137) is connected to the third connecting shaft (1356), and the other end of the tension spring is connected to a fixed shaft (129) at one side of the handle (12) close to the holding end.
5. The manual steering and braking system according to claim 4, wherein a rectangular hole (125) is formed between the mounting end (121) and the holding end (122) of the handle (12), and the handle (12) has a receiving groove (128) at a side near the holding end (122);
the intermediate link is a second link (1352);
the first lever mechanism includes: two L-shaped first links (1351); the two L-shaped first connecting rods (1351) are positioned at two sides of the handle (12), one end of each connecting rod, which is close to the upper part of the handle (12), is fixedly connected with the pressing block (136) through a fifth connecting shaft (1358) positioned in the area of the accommodating groove (128), and the connected pressing block (136) is positioned in the area of the accommodating groove (128); one end of the two L-shaped first connecting rods (1351) close to the lower part of the handle (12) is rotatably connected with one end of a second connecting rod (1352) penetrating through the rectangular hole (125) of the handle (12) through the third connecting shaft (1356) positioned below the handle (12); the L-shaped bends of the two L-shaped first links (1351) are rotatably mounted on the handle (12) by the first connecting shafts (1354) passing through the first mounting holes (126);
the second lever mechanism includes: a third connecting rod (1353) having one end rotatably connected to the other end of the second connecting rod (1352) through the fourth connecting shaft (1357), the other end fixedly installed on the second connecting shaft (1355) rotatably passing through the second mounting hole (127), and the ratchet block (134) fixedly installed at one end of the second connecting shaft (1355).
6. The manual steering and braking system according to claim 2, wherein said positioning ratchet (132) is provided with a stop (1321) for limiting the braking travel of said handle (12).
7. The manual steering and braking system according to any one of claims 1 to 6, further comprising: a wheel braking unit (2); it includes:
a pulling end (21) connected to the brake line (1313);
a wheel brake end pressure lever (22) which is installed in cooperation with the wheel; and
and a brake lever member (23) which is connected to the traction end (21) and the wheel brake end pressing rod (22), respectively, and which is capable of applying a downward force to the wheel brake end pressing rod (22) when the traction end (21) is pulled by the brake wire (1312, 1313) so that the wheel brake end pressing rod (22) presses the corresponding wheel (4) to brake the wheel (4) by increasing a frictional force with the wheel (4).
8. Manual steering and braking system according to any of claims 1 to 6, characterized in that the steering transmission member (3) comprises:
the first vertical transmission part (31) is fixedly connected with the handle part (1) at one end and can transmit the steering control motion of the handle driving the whole handle part from a first horizontal plane to a second horizontal plane;
a first horizontal transmission component (32) which is matched and installed with the first vertical transmission component (31) and is used for transmitting the steering control movement of the handle driving the whole handle component from a first position to a second position on a second horizontal plane;
a second vertical transmission part (33) which is matched and installed with the first horizontal transmission part (32) and can transmit the steering control movement of the handle driving the whole handle part from a second horizontal plane to a third horizontal plane;
and the second horizontal transmission part (34) is matched with the second vertical transmission part (33) and is used for transmitting the steering control motion of the handle driving the whole handle part from the second position of the third horizontal plane to the wheel carrier of the wheel.
9. The manual steering and braking system according to claim 8, characterized in that said first vertical transmission member (31) comprises:
the upper end of the first vertical transmission shaft (311) is fixedly connected with the bottom of the handle bracket (11); and
and the bearing (312) is arranged in a bearing seat (313) and is matched with the first vertical transmission shaft (311) for installation, so that the handle drives the whole handle part to rotate around the axis of the first vertical transmission shaft (311) for steering control movement.
10. The manual steering and braking system according to claim 9, wherein said first horizontal transmission member (32) comprises:
a first driving sprocket (321) fixedly mounted at a lower end of the first vertical transmission shaft (311) for rotating synchronously with the first vertical transmission shaft (311) to transmit the steering control motion;
a first driven sprocket (322) located in the same horizontal plane as the first drive sprocket (321); and
and the first transmission chain (323) is matched with the first driving chain wheel (321) and the first driven chain wheel (322) and is used for synchronously transmitting the steering control motion of the first driving chain wheel (321) to the first driven chain wheel (322).
11. The manual steering and braking system according to claim 10, wherein said second vertical transmission member (33) comprises:
and the upper end of the second vertical transmission shaft (331) is fixedly connected with the first driven chain wheel (322) and is used for synchronously rotating with the first driven chain wheel (322) and transmitting the steering control movement.
12. The manual steering and braking system according to claim 11, wherein said second horizontal transmission member (34) comprises:
a second driving sprocket (341) fixedly installed at a lower end of the second vertical transmission shaft (331) for transmitting the steering control motion in synchronization with the rotation of the second vertical transmission shaft (331);
the number of the second driven chain wheels (342) is consistent with that of the wheels, and each second driven chain wheel (342) is fixedly connected with one wheel carrier (41);
a plurality of tension guide sprockets (343);
and the second transmission chain (344) is matched with the second driving chain wheel (341), the second driven chain wheel (342) and the tensioning guide chain wheel (343) and is used for synchronously transmitting the steering control movement of the second driving chain wheel (341) to the second driven chain wheel (342) so as to control the corresponding wheels to steer.
13. A mobile apparatus, comprising a manual steering and braking system according to any one of claims 1 to 12.
14. The mobile apparatus of claim 13, wherein the mobile apparatus comprises a mobile C-arm X-ray machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922490177.5U CN211534468U (en) | 2019-12-30 | 2019-12-30 | Manual steering and braking system and mobile equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922490177.5U CN211534468U (en) | 2019-12-30 | 2019-12-30 | Manual steering and braking system and mobile equipment |
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| CN211534468U true CN211534468U (en) | 2020-09-22 |
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| CN201922490177.5U Active CN211534468U (en) | 2019-12-30 | 2019-12-30 | Manual steering and braking system and mobile equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693615A (en) * | 2021-09-03 | 2021-11-26 | 南京佗道医疗科技有限公司 | Mobile lock making device |
| CN113978525A (en) * | 2021-11-04 | 2022-01-28 | 上海联影医疗科技股份有限公司 | Control handle and mobile medical equipment |
-
2019
- 2019-12-30 CN CN201922490177.5U patent/CN211534468U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693615A (en) * | 2021-09-03 | 2021-11-26 | 南京佗道医疗科技有限公司 | Mobile lock making device |
| CN113693615B (en) * | 2021-09-03 | 2024-05-03 | 佗道医疗科技有限公司 | Movable lock making device |
| CN113978525A (en) * | 2021-11-04 | 2022-01-28 | 上海联影医疗科技股份有限公司 | Control handle and mobile medical equipment |
| CN113978525B (en) * | 2021-11-04 | 2023-02-24 | 上海联影医疗科技股份有限公司 | Control handle and mobile medical equipment |
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