Lifting device

Abstract

The utility model provides a lifting device. The supporting cylinder is aligned with the dial, then the supporting cylinder is driven by the guiding piece to ascend to abut against the bottom of the dial, the dial is separated from the main body, at the moment, the dial is driven by the guiding piece to descend, after the torsional spring support and the main body are installed, the supporting cylinder is driven by the guiding piece again till the dial abuts against the main body, and at the moment, the supporting cylinder is driven by the guiding piece. The dial and the main body are assembled and locked, the torsion spring support can be assembled, due to the fact that lifting of the dial is achieved through the lifting device, a certain amount of manpower can be effectively saved, and due to the fact that the lifting device does not rotate in the lifting process with the dial, the torsion spring support can be conveniently assembled. When the dial is driven by the lifting device to be assembled with the main body, alignment is not needed, and therefore the assembling efficiency of the dial and the torsional spring support can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device assembly, specifically a lifting device. Background Technology

[0002] The insulin pen consists of an upper injection assembly and a lower injection assembly from top to bottom. The upper injection assembly includes an upper cylinder, a button assembly, a knob assembly, a dial, and a power clutch mechanism. The knob assembly consists of a knob, a two-way stop frame, and a torsion spring support.

[0003] Currently, in the assembly process of the torsion spring bracket and dial of insulin injection pens, the dial is usually removed from the main body to be assembled manually first, then the torsion spring bracket is installed, and finally the dial is aligned and installed with the main body manually.

[0004] However, manually removing the dial to install the torsion spring bracket and then reassembling the dial not only takes time to align the dial, but also requires a certain amount of manpower to lift it, which seriously affects the assembly efficiency. Utility Model Content

[0005] In view of this, the present invention provides a lifting device to solve the problem of low assembly efficiency caused by manual assembly when assembling existing torsion spring brackets and dials.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A lifting device includes: a base, a support cylinder, a guide member, a first elastic member, and a support shaft;

[0008] The base is provided with a mounting cavity. The upper end face of the base is provided with a through hole for the lower end of the support cylinder to be inserted into the mounting cavity. The base is provided with a first channel and a second channel in the lateral direction. The first channel and the second channel are arranged opposite to each other on both sides of the through hole and communicate with the mounting cavity.

[0009] The upper end of the support cylinder is used to mate with the dial;

[0010] The first elastic element is disposed in the mounting cavity and located at the lower end of the support cylinder. The support cylinder moves closer to the base to cause the first elastic element to undergo elastic deformation.

[0011] The guide includes a first sub-guide, a second sub-guide, and a first connecting rod;

[0012] The first sub-guide component is slidably disposed in the first channel;

[0013] The second sub-guide is slidably disposed in the second channel, and the first end of the second sub-guide is connected to the first end of the first sub-guide through the first connecting rod;

[0014] The support shaft is horizontally positioned at the lower end of the support cylinder, and the two ends of the support shaft are respectively slidably engaged with the lower end face of the first sub-guide and the lower end face of the second sub-guide.

[0015] The first connecting rod moves away from the base so that the first sub-guide and the second sub-guide force the support shaft to drive the support cylinder down; the first connecting rod moves closer to the base so that the first sub-guide and the second sub-guide release the restriction on the support shaft.

[0016] Preferably, the first sub-guide and the second sub-guide are the same;

[0017] The thickness of the first sub-guide gradually increases in the direction away from the first connecting rod.

[0018] Preferably, the lower end face of the first sub-guide is an inclined surface at a preset angle.

[0019] Preferably, the lower end face of the first sub-guide is an arc surface.

[0020] Preferably, the guide member further includes: a second connecting rod, a second elastic member, and a third elastic member;

[0021] The second end of the first sub-guide member is connected to the second end of the second sub-guide member via the second connecting rod;

[0022] The second and third elastic elements are both disposed between the base and the second connecting rod. The second connecting rod moves closer to the base to cause the second and third elastic elements to undergo elastic deformation.

[0023] Preferably, the first elastic element, the second elastic element, and the third elastic element are all springs;

[0024] The second elastic element is sleeved on the end of the first sub-guide element near the second connecting rod;

[0025] The third elastic element is sleeved on the end of the second sub-guide element near the second connecting rod.

[0026] Preferably, it also includes: a first bearing and a second bearing;

[0027] The first bearing and the second bearing are rotatably disposed at both ends of the support shaft and respectively abut against the first sub-guide and the second sub-guide.

[0028] Preferably, it also includes: columns;

[0029] The column is vertically installed in the mounting cavity;

[0030] The lower end of the support tube is fitted onto the column;

[0031] The column has a movable groove for the support shaft to pass through.

[0032] Preferably, it also includes: multiple guide posts;

[0033] The lower end of the support cylinder is provided with an annular protrusion;

[0034] The guide post is vertically installed in the mounting cavity;

[0035] The annular protrusion has multiple guide holes that mate with the guide post.

[0036] Preferably, multiple guide posts are evenly arranged along the circumference of the column.

[0037] Based on the above, the lifting device provided by this utility model includes a mounting cavity in the base and a through hole on the upper surface of the base for inserting the lower end of the support cylinder into the mounting cavity. A first channel and a second channel are laterally formed on the base, positioned opposite each other on both sides of the through hole and communicating with the mounting cavity. The upper end of the support cylinder engages with a dial. A first elastic element is disposed in the mounting cavity and located at the lower end of the support cylinder. The support cylinder moves closer to the base to cause elastic deformation of the first elastic element. The guide includes a first sub-guide, a second sub-guide, and a first connecting rod. The first sub-guide is slidably disposed in the first channel, and the second sub-guide is slidably disposed in the second channel. The first end of the second sub-guide is connected to the first end of the first sub-guide via the first connecting rod. A support shaft is laterally disposed at the lower end of the support cylinder. Both ends of the support shaft are slidably engaged with the lower end surfaces of the first and second sub-guides, respectively. The first connecting rod is moved away from the base so that the first and second sub-guides force the support shaft to lower the support cylinder, while the first connecting rod moves closer to the base so that the first and second sub-guides release the restriction on the support shaft. With the lifting mechanism disclosed above, the support cylinder can be aligned with the dial first, and then the guide component can be used to drive the support cylinder to rise until it abuts against the bottom of the dial, separating the dial from the main body. At this time, the guide component can be used to drive the dial to fall. After the torsion spring bracket is installed with the main body, the guide component can be used to drive the support cylinder to rise again until the dial abuts against the main body. At this time, the dial and the main body are assembled and locked, thus completing the assembly of the torsion spring bracket. Since this application uses a lifting device to lift the dial, it can effectively save a certain amount of manpower. Moreover, since the lifting device of this application does not rotate during the lifting process with the dial, it is not necessary to align the dial with the main body when using the lifting device of this application, thus improving the assembly efficiency of the dial and the torsion spring bracket. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a lifting device provided in an embodiment of the present utility model;

[0040] Figure 2 A schematic diagram of the structure of the first sub-guide member provided in an embodiment of this utility model;

[0041] Figure 3 A schematic diagram of the structure of the base provided in an embodiment of this utility model;

[0042] Figure 4 A schematic diagram of the internal structure of the base provided in an embodiment of this utility model;

[0043] Figure 5 A schematic diagram of the column structure provided for an embodiment of this utility model.

[0044] The components include: a base 1, a mounting cavity 11, a through hole 12, a first channel 13, and a second channel 14; a support cylinder 2, an annular protrusion 21, and a guide hole 211; a guide component 3, a first sub-guide component 31, a second sub-guide component 32, a first connecting rod 33, a second connecting rod 34, a second elastic component 35, and a third elastic component 36; a first elastic component 4; a support shaft 5; a first bearing 61 and a second bearing 62; a column 7, a movable groove 71; a guide column 8; a dial 9; and a torsion spring bracket 10. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] This utility model embodiment provides a lifting device, see [link]. Figure 1 and combined Figures 2 to 5 , Figure 1 The diagram shows the structure of the lifting device, which includes: a base 1, a support cylinder 2, a guide 3, a first elastic element 4, and a support shaft 5.

[0047] The base 1 is provided with a mounting cavity 11. The upper end face of the base 1 is provided with a through hole 12 for the lower end of the support cylinder 2 to be inserted into the mounting cavity 11. The base 1 is laterally provided with a first channel 13 and a second channel 14, wherein the first channel 13 and the second channel 14 are arranged opposite to each other on both sides of the through hole 12 and communicate with the mounting cavity 11.

[0048] The upper end of the support cylinder 2 is used to mate with the dial 9;

[0049] The first elastic element 4 is disposed in the mounting cavity 11 and located at the lower end of the support cylinder 2. The support cylinder 2 moves closer to the base 1 to cause the first elastic element 4 to undergo elastic deformation.

[0050] The guide component 3 includes a first sub-guide component 31, a second sub-guide component 32 (not shown in the figure due to angle issues; refer to the first sub-guide component 31 for the specific structure) and a first connecting rod 33;

[0051] The first sub-guide component 31 is slidably disposed in the first channel 13;

[0052] The second sub-guide 32 is slidably disposed in the second channel 14, and the first end of the second sub-guide 32 is connected to the first end of the first sub-guide 31 through the first connecting rod 33.

[0053] The support shaft 5 is horizontally disposed at the lower end of the support cylinder 2, and the two ends of the support shaft 5 are respectively slidably engaged with the lower end face of the first sub-guide 31 and the lower end face of the second sub-guide 32.

[0054] The first connecting rod 33 moves away from the base 1 so that the first sub-guide 31 and the second sub-guide 32 force the support shaft 5 to drive the support cylinder 2 to descend; the first connecting rod 33 moves closer to the base 1 so that the first sub-guide 31 and the second sub-guide 32 release the restriction on the support shaft 5.

[0055] It should be noted that, since the support cylinder 2 of this application can cause the first elastic element 4 to undergo elastic deformation when it moves closer to the base 1, and the first elastic element 4 is disposed in the mounting cavity 11 and located at the lower end of the support cylinder 2, when the first connecting rod 33 moves away from the base 1, the first sub-guide 31 and the second sub-guide 32 can drive the support cylinder 2 to descend through the support shaft 5, and when the first connecting rod 33 moves closer to the base 1, the support cylinder 2 will gradually rise under the action of the elastic restoring force of the first elastic element 4.

[0056] It is worth noting that, since the support cylinder 2 of this application does not rotate during the rising and falling process, and the support cylinder 2 can move within the through hole 12, after aligning the support cylinder 2 with the dial 9, the support cylinder 2 rises to abut against the dial 9, and after separating the dial 9 from the main body, the support cylinder 2 drives the dial 9 to fall. After installing the torsion spring bracket 10, the support cylinder 2 drives the dial 9 to rise, and the dial 9 can always be aligned with the main body mounting position.

[0057] In this embodiment of the invention, a mounting cavity 11 is provided in the base 1, and a through hole 12 is opened on the upper end surface of the base 1 for the lower end of the support cylinder 2 to be inserted into the mounting cavity 11. A first channel 13 and a second channel 14 are opened laterally in the base 1. The first channel 13 and the second channel 14 are arranged opposite to each other on both sides of the through hole 12 and communicate with the mounting cavity 11. The upper end of the support cylinder 2 cooperates with the dial 9. A first elastic member 4 is provided in the mounting cavity 11 and is located at the lower end of the support cylinder 2. The support cylinder 2 moves closer to the base 1 to cause the first elastic member 4 to undergo elastic deformation. The guide member 3 includes a first sub-guide member 31, a second sub-guide member 32 and a first connecting rod 33. The first sub-guide member 31... 1. A sliding member 31 is slidably disposed in the first channel 13, and a second sub-guide member 32 is slidably disposed in the second channel 14. The first end of the second sub-guide member 32 is connected to the first end of the first sub-guide member 31 through the first connecting rod 33. The support shaft 5 is horizontally disposed at the lower end of the support cylinder 2. The two ends of the support shaft 5 are slidably engaged with the lower end face of the first sub-guide member 31 and the lower end face of the second sub-guide member 32, respectively. The first connecting rod 33 is away from the base 1 so that the first sub-guide member 31 and the second sub-guide member 32 force the support shaft 5 to drive the support cylinder 2 to descend, while the first connecting rod 33 is close to the base 1 so that the first sub-guide member 31 and the second sub-guide member 32 release the restriction on the support shaft 5. With the lifting mechanism disclosed above, the support cylinder 2 can be aligned with the dial 9 first, and then the guide 3 can be used to drive the support cylinder 2 to rise until it abuts against the bottom of the dial 9, separating the dial 9 from the main body. At this time, the guide 3 can be used to drive the dial 9 to fall. After the torsion spring bracket 10 is installed with the main body, the guide 3 can be used to drive the support cylinder 2 to rise again until the dial 9 abuts against the main body. At this time, the dial 9 and the main body are assembled and locked, thus completing the assembly of the torsion spring bracket 10. Since this application uses a lifting device to lift the dial 9, it can effectively save a certain amount of manpower. Moreover, since the lifting device of this application does not rotate during the lifting process of the dial 9, it is not necessary to align the dial 9 with the main body when using the lifting device of this application to assemble it, thus improving the assembly efficiency of the dial 9 and the torsion spring bracket 10.

[0058] Specifically, the first sub-guide 31 and the second sub-guide 32 are the same;

[0059] The thickness of the first sub-guide 31 gradually increases in the direction away from the first connecting rod 33.

[0060] It should be noted that by setting the first sub-guide 31 and the second sub-guide 32 to be identical, and by gradually increasing the thickness of the first sub-guide 31 away from the first connecting rod 33, since the height of the first channel 13 and the second channel 14 remains unchanged, when the first connecting rod 33 moves away from the base 1, the first sub-guide 31 and the second sub-guide 32 will press the support shaft 5 downward. The support shaft 5 is located in the support cylinder 2. Therefore, when the support shaft 5 moves downward, it will drive the support cylinder 2 to descend. The descent of the support cylinder 2 will force the elastic element to undergo elastic deformation. When the first connecting rod 33 approaches the base 1, the first sub-guide 31 and the second sub-guide 32 will gradually release the pressure on the support shaft 5, that is, release the restriction on the support shaft 5. At this time, the support cylinder 2 will gradually rise under the action of the elastic restoring force of the elastic element.

[0061] Specifically, the lower end face of the first sub-guide 31 is an inclined surface with a preset angle.

[0062] It should be noted that by setting the lower end face of the first sub-guide 31 as an inclined plane at a preset angle, the thickness of the first sub-guide 31 at the contact position with the support shaft 5 changes linearly when the first connecting rod 33 drives the first sub-guide 31 to move within the first channel 13.

[0063] It should also be noted that the preset angle of the lower end face of the first sub-guide 31 in this application needs to be set according to requirements. Therefore, this application does not make specific limitations on the preset angle.

[0064] For details, please refer to Figure 2 The lower end face of the first sub-guide 31 is an arc surface.

[0065] It should be noted that the first sub-guide 31 can be a sloped surface with a preset angle or an arc surface, and those skilled in the art can choose according to their needs.

[0066] Specifically, guide member 3 also includes: second connecting rod 34, second elastic member 35 and third elastic member 36;

[0067] The second end of the first sub-guide 31 is connected to the second end of the second sub-guide 32 via the second connecting rod 34;

[0068] The second elastic element 35 and the third elastic element 36 are both disposed between the base 1 and the second connecting rod 34. The second connecting rod 34 moves closer to the base 1 to cause the second elastic element 35 and the third elastic element 36 to undergo elastic deformation.

[0069] It should be noted that the second end of the first sub-guide 31 is connected to the second end of the second sub-guide 32 via the second connecting rod 34. The second elastic element 35 and the third elastic element 36 are both disposed between the base 1 and the second connecting rod 34. Thus, when the second connecting rod 34 moves closer to the base 1, the first connecting rod 33 is pulled away by an external force (the external force is greater than the elastic force of the second elastic element 35 and the third elastic element 36), causing the first connecting rod 33 to move away from the base 1. This allows the second elastic element 35 and the third elastic element 36 to undergo elastic deformation. When the external force on the first connecting rod 33 is removed, the second connecting rod 34 will move away from the base 1 under the elastic restoring force of the second elastic element 35 and the third elastic element 36. At this time, it will drive the first sub-guide 31 and the second sub-guide 32 to move until they return to their initial positions.

[0070] It should also be noted that the second connecting rod 34 of this application can also effectively prevent the first sub-guide 31 from dislodging from the first channel 13 and the second sub-guide 32 from dislodging from the second channel 14.

[0071] Specifically, the first elastic element 4, the second elastic element 35, and the third elastic element 36 are all springs;

[0072] The second elastic element 35 is sleeved on the end of the first sub-guide element 31 near the second connecting rod 34;

[0073] The third elastic element 36 is sleeved on the end of the second sub-guide element 32 near the second connecting rod 34.

[0074] It should be noted that the first elastic element 4, the second elastic element 35 and the third elastic element 36 can all be springs, or they can be sheet springs, or other components that can produce elastic deformation under external force. Those skilled in the art can choose according to their needs.

[0075] Furthermore, the lifting device also includes: a first bearing 61 and a second bearing 62;

[0076] The first bearing 61 and the second bearing 62 are rotatably disposed at both ends of the support shaft 5 and respectively abut against the first sub-guide 31 and the second sub-guide 32.

[0077] It should be noted that by setting the first bearing 61 and the second bearing 62, and rotatably setting the first bearing 61 and the second bearing 62 at both ends of the support cylinder 2, and abutting against the first sub-guide 31 and the second sub-guide 32 respectively, the friction between the support shaft 5 and the first sub-guide 31 and the second sub-guide 32 can be reduced, thereby improving the smoothness of the lifting of the support cylinder 2, effectively reducing wear, and ultimately extending the service life of the lifting device.

[0078] Furthermore, the lifting device also includes: column 7;

[0079] The column 7 is vertically installed in the mounting cavity 11;

[0080] The lower end of the support cylinder 2 is sleeved on the column 7;

[0081] The column 7 has a movable groove 71 for the support shaft 5 to pass through.

[0082] It should be noted that by setting up the column 7 and vertically setting the column 7 in the mounting cavity 11, sleeve the lower end of the support cylinder 2 on the column 7, and open the movable groove 71 for the support shaft 5 to pass through in the column 7, it is possible not only to effectively prevent the column 7 from coming off the lower end of the support cylinder 2, but also to prevent the support cylinder 2 from shifting significantly during the lifting and lowering process.

[0083] It is worth noting that the vertical length of the movable groove 71 determines the lifting range of the support cylinder 2. Therefore, those skilled in the art can set the vertical length of the movable groove 71 according to their needs.

[0084] Furthermore, the lifting device also includes: multiple guide columns 8;

[0085] The lower end of the support cylinder 2 is provided with an annular protrusion 21;

[0086] Guide post 8 is vertically installed in mounting cavity 11;

[0087] The annular protrusion 21 has multiple guide holes 211 that mate with the guide post 8.

[0088] It should be noted that by setting multiple guide posts 8 and providing an annular protrusion 21 at the lower end of the support cylinder 2, the guide posts 8 are vertically set in the mounting cavity 11, and the annular protrusion 21 has multiple guide holes 211 that cooperate with the guide posts 8, which can further prevent large deviations from occurring during the lifting and lowering of the support cylinder 2, improve the lifting and lowering accuracy of the support cylinder 2, and also effectively prevent the support cylinder 2 from rotating in the circumferential direction.

[0089] Specifically, multiple guide columns 8 are evenly arranged along the circumference of the column 7.

[0090] It should be noted that by evenly arranging multiple guide columns 8 along the circumference of the column 7, the force on the multiple guide columns 8 can be ensured evenly during the lifting and lowering process of the support cylinder 2, making the multiple guide columns 8 less prone to wear and damage, effectively extending the service life of the multiple guide columns 8, and thus improving the service life of the lifting device.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device, characterized in that, include: Base, support cylinder, guide component, first elastic component, and support shaft; The base is provided with a mounting cavity, and the upper end face of the base is provided with a through hole for the lower end of the support cylinder to be inserted into the mounting cavity. The base is laterally provided with a first channel and a second channel, wherein the first channel and the second channel are arranged opposite to each other on both sides of the through hole and communicate with the mounting cavity. The upper end of the support cylinder is used to cooperate with the dial; The first elastic element is disposed in the mounting cavity and located at the lower end of the support cylinder. The support cylinder moves closer to the base to cause the first elastic element to undergo elastic deformation. The guide component includes a first sub-guide component, a second sub-guide component, and a first connecting rod; The first sub-guide component is slidably disposed in the first channel; The second sub-guide is slidably disposed in the second channel, and the first end of the second sub-guide is connected to the first end of the first sub-guide through the first connecting rod; The support shaft is laterally disposed at the lower end of the support cylinder, and the two ends of the support shaft are respectively slidably engaged with the lower end face of the first sub-guide and the lower end face of the second sub-guide. The first connecting rod moves away from the base so that the first sub-guide and the second sub-guide force the support shaft to drive the support cylinder down; the first connecting rod moves closer to the base so that the first sub-guide and the second sub-guide release the restriction on the support shaft.

2. The lifting device according to claim 1, characterized in that, The first sub-guide and the second sub-guide are the same; The thickness of the first sub-guide gradually increases in the direction away from the first connecting rod.

3. The lifting device according to claim 2, characterized in that, The lower end face of the first sub-guide is an inclined surface at a preset angle.

4. The lifting device according to claim 2, characterized in that, The lower end face of the first sub-guide is an arc surface.

5. The lifting device according to claim 1, characterized in that, The guide member further includes: a second connecting rod, a second elastic member, and a third elastic member; The second end of the first sub-guide is connected to the second end of the second sub-guide via the second connecting rod; The second elastic element and the third elastic element are both disposed between the base and the second connecting rod. The second connecting rod moves closer to the base to cause the second elastic element and the third elastic element to undergo elastic deformation.

6. The lifting device according to claim 5, characterized in that, The first elastic element, the second elastic element, and the third elastic element are all springs; The second elastic element is sleeved on the end of the first sub-guide element near the second connecting rod; The third elastic element is sleeved on one end of the second sub-guide element near the second connecting rod.

7. The lifting device according to claim 1, characterized in that, Also includes: First bearing and second bearing; The first bearing and the second bearing are rotatably disposed at both ends of the support shaft and respectively abut against the first sub-guide and the second sub-guide.

8. The lifting device according to claim 1, characterized in that, Also includes: Columns; The column is vertically installed in the mounting cavity; The lower end of the support cylinder is sleeved on the column; The column has a movable groove for the support shaft to pass through.

9. The lifting device according to claim 8, characterized in that, Also includes: Multiple guide pillars; The lower end of the support cylinder is provided with an annular protrusion; The guide post is vertically disposed in the mounting cavity; The annular protrusion has multiple guide holes that mate with the guide post.

10. The lifting device according to claim 9, characterized in that, The guide posts are evenly arranged along the circumference of the column.

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