Unlocking display mechanism and medical trolley

Abstract

The application provides an unlocking display mechanism and a medical trolley, wherein the unlocking display mechanism comprises a rack, a brake assembly, a state display mechanism and a transmission assembly; the brake assembly comprises a brake main shaft, the brake main shaft is rotationally matched with the rack, and the brake main shaft is used for locking or unlocking the castor wheel through rotation; the state display mechanism comprises a display window arranged on the rack and a display assembly located below the display window, the display assembly comprises a guide piece and a display slider, the guide piece is located below the display window and extends along the radial direction of the brake main shaft, the display slider is slidingly matched with the guide piece, and a state mark is arranged on the top of the display slider; the transmission assembly comprises a first transmission piece and a second transmission piece, one end of the first transmission piece is fixedly connected with the brake main shaft, the other end of the first transmission piece is rotationally matched with one end of the second transmission piece, and the other end of the second transmission piece is rotationally matched with the display slider. The application can more intuitively judge the position of the brake main shaft.

Description

Technical Field

[0001] This invention relates to the field of trolleys, and more specifically to an unlocking display mechanism and a medical trolley. Background Technology

[0002] A trolley is a mobile device used to transport equipment, commonly found in medical equipment. Most existing trolleys are equipped with casters. By turning the brake on the caster, the caster can be locked, thereby braking it. However, in the prior art, the status of the caster after locking or unlocking cannot be intuitively obtained. The above-mentioned problem is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] The main technical problem this invention addresses is how to intuitively display the braking status of casters.

[0004] According to the first aspect, an unlocking display mechanism includes:

[0005] frame;

[0006] A braking assembly, comprising a braking spindle, the braking spindle being rotatably coupled with the frame, the braking spindle being used to lock or unlock the casters by rotation;

[0007] A status display mechanism includes a display window disposed on the frame and a display component located below the display window. The display component includes a guide and a display slider. The guide is located below the display window and extends radially along the brake spindle. The display slider is slidably engaged with the guide. A status indicator is provided on the top of the display slider.

[0008] The transmission assembly includes a first transmission component and a second transmission component. One end of the first transmission component is fixedly connected to the brake spindle, and the other end is rotatably engaged with one end of the second transmission component. The other end of the second transmission component is rotatably engaged with the display slider.

[0009] When the brake spindle rotates, the status indicator moves with the display slider and is opposite or offset from the display window. The status indicator is used to indicate whether the brake spindle is locked and / or the caster is unlocked.

[0010] In one optional embodiment, the status indicator includes a locking indicator. When the brake spindle rotates to lock the caster, the locking indicator moves with the slider to a position directly opposite the display window. When the brake spindle rotates to unlock the caster, the locking indicator moves with the display slider to a position offset from the display window.

[0011] In one optional embodiment, the status indicator includes an unlock indicator. When the brake spindle rotates to lock the caster, the unlock indicator can move with the slider to a position offset from the display window. When the brake spindle rotates to unlock the caster, the unlock indicator can move with the slider to a position directly opposite the display window.

[0012] In one optional embodiment, the guide member is provided with a guide groove, and the display slider is disposed within the guide groove.

[0013] In one optional embodiment, the guide member is provided with a first mounting through hole, which extends from the outside of the guide member to the guide groove. The display slider is provided with a second mounting through hole, which allows the first mounting through hole to be opposite to the second mounting through hole by sliding within the guide groove. The display slider is connected to the second transmission member through the second mounting through hole.

[0014] In one alternative embodiment, the guide is provided with a display port, which is directly opposite the display window.

[0015] In one optional embodiment, the display slider includes a mating part and a display part, the mating part is connected to the display part, the second transmission member is connected to the mating part, and the status indicator is disposed on the display part.

[0016] In one optional embodiment, the guide groove includes a first groove and a second groove. The display part is slidably engaged with the first groove, and the engaging part is slidably engaged with the second groove. The width of the display part is greater than the width of the first groove, and the end face of the first groove near the second groove can prevent the display part from continuing to slide into the first groove.

[0017] In one optional embodiment, the system further includes a brake shaft and a linkage transmission mechanism, wherein the brake shaft is rotatably engaged with the frame; the brake spindle and the brake shaft are connected through the linkage transmission mechanism, and the brake spindle rotates to drive the linkage transmission mechanism to rotate the brake shaft, and the brake shaft rotates to lock or unlock the caster brake.

[0018] According to the second aspect, this application provides a medical trolley including the aforementioned unlocking display mechanism.

[0019] According to the unlocking display indicator in the above embodiment, this application provides a display window on the frame and a slidable display slider below the display window. The display slider is linked to the brake spindle through a transmission component, so that when the brake spindle rotates, the status indicator on the display slider is opposite to or offset from the display window, thereby displaying the rotation position of the brake spindle. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of one embodiment of the present application after the rack has been removed;

[0022] Figure 3 This is a schematic diagram of the display components in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the display component after the guide groove is removed in one embodiment of this application;

[0024] Figure 5 This is an overall schematic diagram of another embodiment of this application;

[0025] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0026] Reference numerals: Frame 1, Brake spindle 21, Brake shaft 22, Connecting part 231, Drive part 232, First section 232a, Second section 232b, Display window 31, Guide member 32, Guide groove 321, First groove 321a, Second groove 321b, First mounting through hole 322, Display port 323, Display slider 33, Fitting part 33a, Display part 33b, Second mounting through hole 331, Status indicator 34, Locking indicator 34a, Unlocking indicator 34b, First transmission member 41, Second transmission member 42, Bushing 43. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0028] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0029] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0030] like Figure 1 and Figure 2 As shown, this application discloses an unlocking display mechanism, which includes: a frame 1, a brake assembly, and a status display mechanism.

[0031] The aforementioned frame 1 can be a flat plate structure. Both sides of the frame 1 are used to connect casters and the supporting equipment, allowing the supported equipment to be moved by the casters. This application does not specifically limit the supported equipment; for example, it can be used to support equipment such as ventilators. The casters can be existing casters. In the example disclosed in this application, the casters are equipped with brakes, which can be turned to lock or unlock the casters. The aforementioned brake assembly is used to control the brakes of each caster. Specifically, the brake assembly includes a brake spindle 21, which is connected to the brakes on the casters. The brake spindle 21 controls the brakes of the casters by rotation. Furthermore, the brake spindle 21 has an unlocked position and a locked position on its rotation path. When the brake spindle 21 is in the locked position, the connected caster can be locked; when the brake spindle 21 is in the unlocked position, the connected caster can be unlocked.

[0032] The aforementioned status display mechanism is used to display the rotational position of the brake spindle 21, allowing the user to observe whether the caster connected to the brake spindle 21 is in a locked or unlocked state. Specifically, this status display mechanism is used to indicate whether the brake spindle 21 is in the unlocked or locked position. For example... Figure 1 As shown, the status display mechanism includes a display window 31 opened on the upper surface of the side edge of the frame 1, and a display component is disposed below the display window 31; see also Figure 2 and Figure 3 As shown, the display assembly includes a display slider 33 and a guide 32, the display slider 33 and the guide 32 being slidably engaged to slide below the opening of the display window 31; as Figure 4As shown, a status indicator 34 is provided on the top of the display slider 33; in a more specific example, the display slider 33 is composed of a mating part 33a and a display part 33b, the mating part 33a is connected to the display part 33b, and the status indicator 34 is provided on the display part 33b.

[0033] The aforementioned guide member 32 can be a guide rail or a guide rod, etc. In a specific example, for example... Figure 2 As shown, the guide member 32 is arranged radially along the brake spindle 21, and includes an elongated guide housing. A guide groove 321 is provided within the guide housing, and the display slider 33 slides within the guide groove 321. To prevent the guide groove 321 from obstructing the status indicator 34, for example... Figure 3 As shown, a display port 323 is provided on the guide groove 321 at a position corresponding to the opening of the display window 31, and the aforementioned status indicator 34 is located on the side of the display slider 33 facing the opening of the display window 31.

[0034] The aforementioned display slider 33 is linked to the brake spindle 21 via a transmission assembly. When the brake spindle 21 rotates to the locked or unlocked position, the position of the status indicator 34 can be switched, allowing the status indicator 34 on the display assembly to be opposite or offset from the display window 31. By observing the status indicator 34 within the display window 31, the position of the brake spindle 21 can be determined, thereby indicating whether the caster brake is in an unlocked or locked state.

[0035] In the embodiments disclosed in this application, such as Figures 2 to 4 As shown, the transmission assembly includes a first transmission component 41 and a second transmission component 42. One end of the first transmission component 41 is fixedly connected to the brake spindle 21 via a bushing 43. The first transmission component 41, the second transmission component 42, and the display slider 33 are sequentially connected end-to-end and hinged to each other. The second transmission component 42 is connected to the end of the display slider 33 away from the display window 31. Driven by the brake spindle 21, the transmission assembly can drive the display slider 33 to slide below the display window 31, thereby causing the status indicator 34 on the display slider 33 to be opposite or offset from the display window 31. By observing the status indicator 34 inside the display window 31, the user can determine the position of the brake spindle 21 and thus determine whether the caster is in a braking state.

[0036] The aforementioned status indicator 34 may include one or both of the locked indicator 34a and the unlocked indicator 34b. For example, the aforementioned display indicator may include only one unlocked indicator 34b or one locked indicator 34a. Taking the status indicator 34 including only the unlocked indicator 34b as an example, when the brake spindle 21 rotates to the unlocked position, if the complete unlocked indicator 34b can be observed, it can be determined that the brake spindle 21 is in the unlocked position. If the unlocked indicator 34b cannot be observed at all, it can be determined that the brake spindle 21 is in the locked position.

[0037] In some designs, such as Figure 4 As shown, the aforementioned status indicator 34 may include both an unlock indicator 34b and a lock indicator 34a. Both the unlock indicator 34b and the lock indicator 34a are located on the side of the display component facing the display window 31. When the brake spindle 21 is in the locked position, the lock indicator 34a is directly opposite the display window 31. When the brake spindle 21 is in the unlocked position, the unlock indicator 34b is directly opposite the display window 31.

[0038] When the display assembly is in operation, the brake spindle 21 rotates, causing the first transmission member 41 to rotate circumferentially with the brake spindle 21, which in turn drives the second transmission member 42 to move vertically while moving towards the brake spindle 21. The display slider 33, limited by the guide groove 321, only moves closer to or further away from the brake spindle 21 with the second transmission member 42. Therefore, when the brake spindle 21 rotates forward or backward, the display slider 33 reciprocates along the guide groove 321, causing the position of the display slider 33 relative to the display window 31 to change. This application, by providing an unlock mark 34b and a lock mark 34a on the display slider 33, allows the unlock mark 34b and the lock mark 34a to switch accordingly when the brake spindle 21 is in the locked or unlocked position.

[0039] In some optional examples, such as Figure 2 and Figure 3 As shown, the guide member 32 is also provided with a first mounting through hole 322, which extends from the outside of the guide member 32 into the guide groove 321; correspondingly, as shown in the figure Figure 4 As shown, a second mounting through hole 331 is provided on the display slider 33, which is used to connect the display slider 33 to the second transmission member 42. The display slider 33 can slide in the guide groove 321 so that the first mounting through hole 322 and the second mounting through hole 331 are opposite each other.

[0040] This application takes into account that the display slider 33 is located in the guide groove 321, which makes it inconvenient to connect or disconnect the second transmission member 42 from the display slider 33. Therefore, this application provides a first mounting through hole 322 on the guide member 32. When it is necessary to connect or disconnect the second transmission member 42 and the display slider 33, the display slider 33 can be slid in the guide groove 321 first, so that the second mounting through hole 331 is opposite to the first mounting through hole 322. At this time, installation tools such as screwdrivers can be inserted into the guide groove 321 through the first mounting through hole 322 and then into the second mounting through hole 331 to install or disconnect the second transmission member 42 and the display slider 33.

[0041] Furthermore, in some embodiments, such as Figure 2As shown, in order to confine the display slider 33 within the guide groove 321, the guide groove 321 can be composed of a first groove 321a and a second groove 321b, with the second groove 321b located on the side of the first groove 321a away from the brake spindle 21; wherein, the display part 33b slides with the first groove 321a, and the mating part 33a slides with the second groove 321b, as in a specific embodiment, such as Figure 2 and Figure 4 As shown, the display part 33b is a flat structure, and one side edge of it slides into the second groove 321b. The first groove 321a is a square groove, and the mating part 33a matches and slides into the first groove 321a. The width of the display part 33b is greater than the width of the mating part 33a, that is, the width of the display part 33b is also greater than the width of the first groove 321a. When the display slider 33 slides, the end face of the first groove 321a near the second groove 321b can prevent the display part 33b from continuing to slide into the first groove 321a, thereby limiting the display slider 33 and preventing the display slider 33 from detaching from the guide member 32 from the end away from the brake spindle 21.

[0042] Furthermore, considering that multiple casters may be mounted on a single frame 1, in order to simultaneously control the braking of these casters, some embodiments also include a brake shaft 22 and a linkage transmission mechanism. See exemplary embodiments. Figure 5 As shown, the two ends of the brake spindle 21 are rotatably engaged with the frame 1. The brake shaft 22 corresponds to each caster; one end of the brake shaft 22 near the brake spindle 21 is rotatably engaged with the frame 1, and the other end is used to rotatably engage with the brake component in the caster; when the brake shaft 22 rotates, it can control the brake component to rotate, thereby locking or unlocking the brake of the caster.

[0043] In the embodiments disclosed in this application, the end of the brake shaft 22 furthest from the caster is also connected to the brake spindle 21 via a linkage mechanism. The linkage mechanism enables the brake shaft 22 and the brake spindle 21 to move in tandem. When the brake spindle 21 rotates around its own axis, it can drive each brake shaft 22 to rotate simultaneously around its own axis via the linkage mechanism. At this time, only the rotation of the brake spindle 21 needs to be rotated to simultaneously control the rotation of each brake shaft 22, thereby simultaneously unlocking or locking the brakes of each caster.

[0044] In a more specific embodiment, such as Figure 6As shown, the linkage transmission mechanism consists of a connecting part 231 and a driving part 232. The connecting part 231 is fixedly connected to the driving part 232, and the brake shaft 22 is fixedly connected to the driving part 232. The connecting part 231 and the brake spindle 21 are rotatably engaged in the axial direction of the brake spindle 21. In one example, one or more drive ports that radially penetrate the brake spindle 21 are provided on the circumferential surface of the brake spindle 21. One end of the connecting part 231 is hinged to the drive port and can rotate relative to the axial direction of the brake spindle 21.

[0045] See also Figure 6 As shown, the drive unit 232 consists of a first segment 232a and a second segment 232b. The first segment 232a and the second segment 232b are fixedly connected. The first segment 232a is fixedly connected to the end of the brake shaft 22 near the brake master shaft 21. The second segment 232b is bent from the brake shaft 22 toward the brake master shaft 21 and is connected to the connecting part 231. The included angle between the second segment 232b and the connecting part 231 is equal to 90°. In this example, the brake shaft 22 and the drive shaft 21 also have a certain included angle, which is an acute angle less than 90°.

[0046] When the brake spindle 21 rotates circumferentially, a force is applied to the connecting part 231 to force it closer to the brake spindle 21, as well as a vertical force. The connecting part 231, which is connected to the brake spindle 21, cannot move radially perpendicular to the brake spindle 21 due to the limitation of the drive part 232. Therefore, the connecting part 231 will rotate axially along the brake spindle 21 within the drive port. When the connecting part 231 rotates axially along the brake spindle 21, a vertical force and a force along the axial direction of the brake spindle 21 are also applied to the drive part 232. Since the drive part 232 is restricted by the brake shaft 22 and cannot rotate as a whole along the axial direction of the brake spindle 21, it can only rotate around the axis of the brake shaft 22. Since the first segment 232a of the drive part 232 is fixedly connected to the brake shaft 22, the drive part 232 can drive the brake shaft 22 to rotate when it rotates around the axis of the brake shaft 22.

[0047] When the casters are running normally, the brake spindle 21 is in the unlocked position. At this time, the brake shaft 22 controls the brake components in the casters to remain unlocked. When it is necessary to brake the casters, simply rotate the brake spindle 21. Since each brake shaft 22 is linked to the brake spindle 21 through a linkage transmission mechanism, when the brake spindle 21 rotates to the set locking position, the brake shaft 22 will rotate simultaneously to lock the brakes on each caster. Similarly, if you want to unlock the casters' brakes again, simply rotate the brake spindle 21 in the opposite direction to return it to the unlocked position.

[0048] This application provides a display window 31 on the frame 1 and a slidable display slider 33 below the display window 31. The display slider 33 is linked to the brake spindle 21 through a transmission component. When the brake spindle 21 rotates, the status indicator 34 on the display slider 33 can be opposite or offset from the display window 31, thereby displaying the rotation position of the brake spindle 21. This helps the user understand the braking status of the caster connected to the brake spindle 21.

[0049] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. An unlock display mechanism, characterized by, The utility model relates to a kind of trolley, including: Frame; Brake assembly, the brake assembly includes brake main shaft, the brake main shaft is rotationally matched with the frame, the brake main shaft is locked or unlocked for caster by rotation; State display mechanism, the state display mechanism includes display window arranged on the frame, and display assembly is located below the display window, the display assembly includes guide and display slider, the guide is located below the display window and extends along the radial direction of the brake main shaft, the display slider is slidably connected with the guide, and state mark is arranged on the top of the display slider; Transmission assembly, the transmission assembly includes first transmission and second transmission, one end of the first transmission is fixedly connected with the brake main shaft, the other end is rotationally matched with one end of the second transmission, and the other end of the second transmission is rotationally matched with the display slider; When the brake main shaft rotates, the state mark can move with the display slider and be opposite or staggered with the display window, and the state mark is used to show whether the brake main shaft is locked and / or unlocked for the caster; The state mark includes locking mark, when the brake main shaft rotates to lock the caster, the locking mark can move to the position that is opposite to the display window with the slider, when the brake main shaft rotates to unlock the caster, the locking mark can move to the position that is staggered with the display window with the display slider;Or, the state mark includes unlocking mark, when the brake main shaft rotates to lock the caster, the unlocking mark can move to the position that is staggered with the display window with the slider, when the brake main shaft rotates to unlock the caster, the unlocking mark can move to the position that is opposite to the display window with the slider.

2. The unlock display mechanism of claim 1, wherein, The guide is provided with a guide groove, and the display slider is arranged in the guide groove.

3. The unlock display mechanism of claim 2, wherein, The guide is provided with a first mounting through hole, the first mounting through hole is penetrated from the outside of the guide to the guide groove, the display slider is provided with a second mounting through hole, the first mounting through hole and the second mounting through hole are opposite by sliding in the guide groove, and the display slider is connected with the second transmission through the second mounting through hole.

4. The unlock display mechanism of claim 2, wherein, The guide is provided with a display port, and the display port is opposite to the display window.

5. The unlock display mechanism of claim 2, wherein, The display slider includes a matching part and a display part, the matching part is connected with the display part, the second transmission is connected with the matching part, and the state mark is arranged on the display part.

6. The unlock display mechanism of claim 5, wherein, The guide groove includes a first groove body and a second groove body, the display part is slidably connected with the first groove body, the matching part is slidably connected with the second groove body, the width of the display part is greater than the width of the first groove body, and the end face of the first groove body close to the second groove body can block the display part from continuing to slide to the first groove body.

7. The unlocking display mechanism according to any one of claims 1 to 6, wherein Further comprising brake shafts, each of which is rotatably coupled to the frame; the brake main shaft and the brake shafts are connected through the connecting rod transmission mechanism, the brake main shaft drives the connecting rod transmission mechanism to rotate the brake shafts by rotating, and the brake shafts are used for locking or unlocking the casters by rotating.

8. A medical cart, characterized by, The unlocking display mechanism of any one of claims 1 to 7 is included.

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